Encircling type end plate connecting assembly and pile connecting structure

Abstract

The utility model relates to the technical field of prefabricated parts, and particularly discloses an encircling type end plate connecting assembly and a pile connecting structure. The surrounding type end plate connecting assembly comprises an upper end plate, a lower end plate, an inserting rod and an umbrella rib cylinder. The upper end plate is provided with an upper connecting hole, and the lower end plate is provided with a lower connecting hole; the umbrella rib cylinder comprises an umbrella rib cylinder body and a plurality of elastic fins, the lower ends of the elastic fins are connected with the umbrella rib cylinder body, and the upper ends of the elastic fins are opened outwards; the inserting rod comprises a connecting part and a clamping part, and the connecting part is connected with the upper end plate; a clamping groove is formed in the top surface of the umbrella rib cylinder body, and the clamping part is clamped and fixed in the clamping groove; in the process that the inserting rod and the umbrella rib cylinder are inserted into the lower connecting hole, the upper ends of the elastic fins can contract inwards, and after the umbrella rib cylinder penetrates through the lower connecting hole, the upper ends of the elastic fins rebound to be opened so as to be connected to the bottom face of the lower end plate in a clamped mode. The position of the insertion rod relative to the umbrella rib cylinder in the axial direction is relatively fixed, and smooth connection of the upper end plate and the lower end plate is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to prefabricated component technical field, especially a kind of embracing end plate connecting assembly and pile connection structure. BACKGROUND

[0002] In the process of building construction, the traditional prefabricated concrete pile often needs to be connected, and the current conventional method is to weld the end plates of the upper and lower connecting piles. Due to the small internal space of the prefabricated component, there is no working surface for welding or mechanical connection on the inside of the end plate. Generally, only the outer periphery of the end plate is welded, and the inside area of the pile end plate is not connected, which will cause the end plate to be eccentrically stressed on the inside and outside when the pile is subjected to uplift force, greatly reducing the uplift and bending resistance of the pile connection.

[0003] Therefore, some new end plate connection structures have appeared in the prior art, such as the Chinese utility model patent with publication number CN216340111U, which connects the upper and lower two end plates together through a plug rod and an umbrella barrel. However, the umbrella barrel and the plug rod are threadedly connected, and the position of the plug rod relative to the umbrella barrel in the axial direction is not easy to control. The plug rod may be inserted too far into the umbrella barrel, or the distance of insertion into the umbrella barrel may be insufficient, which will affect the connection of the upper and lower two end plates. SUMMARY

[0004] The utility model provides a kind of embracing end plate connecting assembly and pile connection structure, and the position of plug rod relative to umbrella barrel in axial direction is relatively fixed, guarantee that upper end plate and lower end plate are connected smoothly.

[0005] To solve the above problems, the utility model adopts the following technical solutions:

[0006] According to the first aspect of the utility model, the embodiments of the utility model provide an embracing end plate connecting assembly, which includes an upper end plate, a lower end plate, a plug rod and an umbrella barrel. The upper end plate is located above the lower end plate, and the upper end plate is provided with an upper connecting hole. The lower end plate is provided with a lower connecting hole. The umbrella barrel includes a barrel body and a plurality of elastic fins. The lower end of the elastic fin is connected to the barrel body, and the upper end of the elastic fin is outwardly flared. The plug rod includes a connecting portion at its upper end and a clamping portion at its lower end. The connecting portion is inserted into the upper connecting hole and connected to the upper end plate. The top surface of the barrel body is provided with a clamping groove, and the clamping portion is clamped and fixed in the clamping groove. The elastic fins are arranged around the plug rod. During the insertion of the plug rod and the umbrella barrel into the lower connecting hole, the upper end of the elastic fin can be inwardly contracted. After the umbrella barrel passes through the lower connecting hole, the upper end of the elastic fin rebounds and flares to be clamped on the bottom surface of the lower end plate.

[0007] In some embodiments, the opening of the upper end of the card slot has a diameter smaller than the diameter of the card slot, the insertion rod further comprises a main rod part connecting the clamping part and the connecting part, the opening of the upper end of the card slot has a diameter smaller than the outer diameter of the clamping part, and the opening of the upper end of the card slot has a diameter larger than the outer diameter of the main rod part.

[0008] In some embodiments, the lower end of the elastic fin is connected to the top surface of the umbrella rib barrel body, the lower end of the elastic fin protrudes from the inner wall of the card slot, and the inner side surface of the lower end of the elastic fin encloses the opening of the upper end of the card slot.

[0009] In some embodiments, the opening of the bottom surface of the umbrella rib barrel body has a diameter smaller than the diameter of the card slot.

[0010] According to the second aspect of the utility model, the embodiment of the utility model provides a surrounding type end plate connecting assembly, including upper end plate, lower end plate, insertion rod, umbrella rib barrel and inner sleeve, the upper end plate is located above the lower end plate, the upper end plate is provided with upper connecting hole, the lower end plate is provided with lower connecting hole, the umbrella rib barrel includes umbrella rib barrel body and a plurality of elastic fins, the lower end of the elastic fin is connected to the umbrella rib barrel body, the upper end of the elastic fin opens outwards, the insertion rod includes the connecting part at its upper end and the clamping part at its lower end, the connecting part is inserted into the upper connecting hole and is connected with the upper end plate, the top surface of the umbrella rib barrel body is provided with the card slot, the clamping part is clamped and fixed in the card slot, and the elastic fin is surrounded around the insertion rod, the inner sleeve is fixed in the lower connecting hole, in the process that the insertion rod and the umbrella rib barrel are inserted into the inner sleeve, the upper end of the elastic fin can be inwards contracted, and after the umbrella rib barrel passes through the inner sleeve, the upper end of the elastic fin rebounds and opens to be clamped on the bottom surface of the inner sleeve.

[0011] In some embodiments, the outer peripheral wall of the inner sleeve is provided with a first external thread, the inner wall of the lower connecting hole is provided with a first internal thread matched with the first external thread, and the inner sleeve is threadedly connected with the lower end plate.

[0012] In some embodiments, the opening of the upper end of the card slot has a diameter smaller than the diameter of the card slot, the insertion rod further comprises a main rod part connecting the clamping part and the connecting part, the opening of the upper end of the card slot has a diameter smaller than the outer diameter of the clamping part, and the opening of the upper end of the card slot has a diameter larger than the outer diameter of the main rod part.

[0013] In some embodiments, the lower end of the elastic fin is connected to the top surface of the umbrella rib barrel body, the lower end of the elastic fin protrudes from the inner wall of the card slot, and the inner side surface of the lower end of the elastic fin encloses the opening of the upper end of the card slot.

[0014] In some embodiments, the opening of the bottom surface of the umbrella rib barrel body has a diameter smaller than the diameter of the card slot.

[0015] According to the third aspect of the utility model, the embodiment of the utility model provides a pile connecting structure, including upper section pile, lower section pile and the embracing type end plate connecting subassembly of any one described in the above first aspect or second aspect, the upper section pile is arranged in the upper of lower section pile, the upper end plate is fixed in the lower end surface of upper section pile, the lower end plate is fixed in the upper end surface of lower section pile, the upper end surface of lower section pile is provided with the position avoiding hole that butt joints with lower connecting hole.

[0016] The utility model has at least the following beneficial effects: the rib barrel of the utility model includes rib barrel body and multiple elastic fins, the top surface of the rib barrel body is provided with a clamping groove, the plug rod includes a connecting portion at its upper end and a clamping portion at its lower end, the clamping portion is clamped and fixed in the clamping groove, the connection between the rib barrel and the plug rod is realized by clamping and fixing, this mode limits the movement of the plug rod relative to the rib barrel, the position of the plug rod relative to the rib barrel in the axial direction is relatively fixed, and the smooth connection of the upper end plate and the lower end plate is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a cross-sectional view of the embracing type end plate connecting subassembly of an embodiment of the utility model;

[0018] Figure 2 It is a cross-sectional view of the rib barrel of an embodiment of the utility model;

[0019] Figure 3 It is a structural schematic view of the plug rod of an embodiment of the utility model;

[0020] Figure 4 It is a cross-sectional view of the embracing type end plate connecting subassembly of another embodiment of the utility model;

[0021] Figure 5 It is a cross-sectional view of the inner sleeve of an embodiment of the utility model;

[0022] Figure 6 It is a cross-sectional view of the pile connecting structure of an embodiment of the utility model.

[0023] Wherein, the reference signs are:

[0024] Upper end plate 110, upper connecting hole 111, second internal thread 112;

[0025] Lower end plate 120, lower connecting hole 121, first internal thread 122;

[0026] Plug rod 200, clamping portion 210, connecting portion 220, second external thread 221, main rod portion 230;

[0027] Rib barrel 300, rib barrel body 310, clamping groove 311, elastic fin 320;

[0028] Inner sleeve 400, first external thread 410;

[0029] Upper pile 510, lower pile 520, and clearance hole 521. Detailed Implementation

[0030] This invention provides the following description with reference to the accompanying drawings to aid in a comprehensive understanding of the various embodiments of the invention as defined by the claims and their equivalents. The description includes various specific details to aid understanding, but these details should be considered exemplary only. Therefore, those skilled in the art will recognize that various changes and modifications can be made to the various embodiments described herein without departing from the scope and spirit of the invention.

[0031] In the description of this utility model, the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0032] It should be understood that when one element (e.g., the first element) is “connected” to another element (e.g., the second element), the element may be directly connected to the other element, or there may be an intervening element (e.g., the third element) between the element and the other element.

[0033] An embodiment of this utility model provides a wraparound endplate connection assembly, such as... Figures 1-3 As shown, the umbrella includes an upper end plate 110, a lower end plate 120, a plug rod 200, and an umbrella rib tube 300. The upper end plate 110 is located above the lower end plate 120. The upper end plate 110 is provided with an upper connecting hole 111, and the lower end plate 120 is provided with a lower connecting hole 121. When the upper end plate 110 and the lower end plate 120 are connected, the upper connecting hole 111 and the lower connecting hole 121 can mate with each other. The umbrella rib tube 300 includes an umbrella rib tube body 310 and a plurality of elastic fins 320. The umbrella rib tube body 310 may be cylindrical, and the elastic fins 320 may be elastically deformable. The lower end of the elastic fins 320 is connected to the umbrella rib tube body 310, and the upper end of the elastic fins 320 opens outward, that is, opens outward relative to the axis of the umbrella rib tube body 310, which provides room for the elastic contraction of the elastic fins 320.

[0034] The insertion rod 200 comprises a connecting portion 220 at the upper end and a clamping portion 210 at the lower end. The connecting portion 220 is inserted into the upper connecting hole 111 and connected with the upper end plate 110. The top surface of the umbrella rib barrel body 310 is provided with a clamping groove 311. The clamping portion 210 is clamped and fixed in the clamping groove 311. The elastic fins 320 are arranged around the insertion rod 200 and do not interfere with the insertion of the clamping portion 210 of the insertion rod 200 into the clamping groove 311 or the elastic expansion and contraction of the elastic fins 320. During the insertion of the insertion rod 200 and the umbrella rib barrel 300 into the lower connecting hole 121, the upper end of the elastic fins 320 can be inwardly retracted. After the umbrella rib barrel 300 passes through the lower connecting hole 121, the upper end of the elastic fins 320 rebounds and opens to be clamped on the bottom surface of the lower end plate 120.

[0035] During the connection, the connecting portion 220 is first inserted into the upper connecting hole 111 and connected with the upper end plate 110. Then, the clamping portion 210 is inserted into the clamping groove 311 and clamped and fixed in the clamping groove 311. Finally, the insertion rod 200 and the umbrella rib barrel 300 are inserted into the lower connecting hole 121. During the insertion, the upper end of the elastic fins 320 is inwardly retracted due to the blockage of the inner wall of the lower connecting hole 121, so that the umbrella rib barrel 300 smoothly passes through the lower connecting hole 121. After the umbrella rib barrel 300 passes through the lower connecting hole 121, the upper end of the elastic fins 320 rebounds and opens to be clamped on the bottom surface of the lower end plate 120, thereby limiting the umbrella rib barrel 300 from being separated from the lower end plate 120. The insertion rod 200 is connected with the lower end plate 120, so that the upper end plate 110 and the lower end plate 120 are connected together.

[0036] In this embodiment, the clamping portion 210 is clamped and fixed in the clamping groove 311, and the connection between the umbrella rib barrel 300 and the insertion rod 200 is achieved by clamping and fixing. This mode limits the movement of the insertion rod 200 relative to the umbrella rib barrel 300, and the position of the insertion rod 200 relative to the umbrella rib barrel 300 in the axial direction is relatively fixed, thereby ensuring the smooth connection of the upper end plate 110 and the lower end plate 120.

[0037] In some embodiments, the clamping groove 311 is arranged on the top surface of the umbrella rib barrel body. The upper end of the clamping groove 311 naturally has an opening. The caliber of the opening of the upper end of the clamping groove 311 is smaller than the inner diameter of the clamping groove 311, and a step structure is formed at the opening position. The insertion rod 200 further comprises a main rod portion 230 connecting the clamping portion 210 and the connecting portion 220. The caliber of the opening of the upper end of the clamping groove 311 is smaller than the outer diameter of the clamping portion 210. When the clamping portion 210 moves upward, it is blocked by the step structure, so that the clamping portion 210 is difficult to disengage from the clamping groove 311 through the opening of the upper end of the clamping groove 311, and is further stably clamped in the clamping groove 311. Meanwhile, the caliber of the opening of the upper end of the clamping groove 311 is larger than the outer diameter of the main rod portion 230, so that the main rod portion 230 can extend out of the opening of the upper end of the clamping groove 311.

[0038] Further, the lower end of the elastic fin 320 is connected to the top surface of the umbrella rib barrel body 310, the lower end of the elastic fin 320 protrudes from the inner wall of the clamping groove 311, and the inner side surface of the lower end of the elastic fin 320 surrounds the opening at the upper end of the clamping groove 311. Therefore, the step structure is formed by the lower end of the elastic fin 320 in the present embodiment, and no additional step structure needs to be configured for the clamping groove 311, thereby simplifying the overall structure of the umbrella rib barrel 300.

[0039] In the present embodiment, the thickness of the elastic fin 320 can be greater than the wall thickness of the umbrella rib barrel body 310, so that the lower end of the elastic fin 320 can protrude from the inner wall of the clamping groove 311.

[0040] In some embodiments, the opening at the bottom surface of the umbrella rib barrel body 310 has a smaller diameter than the inner diameter of the clamping groove 311. The opening at the bottom surface of the umbrella rib barrel body 310 reduces the material usage of the umbrella rib barrel body 310 and facilitates observation of the clamping condition of the clamping part 210 in the clamping groove 311. Since the opening at the bottom surface of the umbrella rib barrel body 310 has a smaller diameter than the inner diameter of the clamping groove 311, the clamping part 210 is difficult to disengage from the clamping groove 311 through the opening at the bottom surface of the umbrella rib barrel body 310, which further limits the movement of the insertion rod 200 relative to the umbrella rib barrel 300, and the clamping part 210 can be more stably clamped in the clamping groove 311.

[0041] In some embodiments, the umbrella rib barrel body 310 and the elastic fin 320 are integrally formed, which facilitates the manufacturing of the umbrella rib barrel 300 and can strengthen the connection between the umbrella rib barrel body 310 and the elastic fin 320.

[0042] In some embodiments, the outer wall of the connecting part 220 is provided with a second external thread 221, the inner wall of the upper end plate 110 is provided with a second internal thread 112 matched with the second external thread 221, and the connecting part 220 is threadedly connected with the upper end plate 110. The threaded connection is easy to operate and simple to assemble.

[0043] In some embodiments, the upper end plate 110 and the lower end plate 120 are both provided with tensioning screw holes. When tensioning the prestressed steel bars, a tensioning screw can be inserted into the tensioning screw hole and connected with the upper end plate 110 or the lower end plate 120, thereby being used to tension the prestressed steel bars in the prestressed concrete member.

[0044] Further, the upper end plate 110 and the lower end plate 120 are both provided with anchoring holes, and the prestressed steel bars in the precast concrete pile can be fixed in the anchoring holes.

[0045] Further, the tensioning screw hole can be in communication with the anchoring hole, so that the head of the prestressed steel bar can be moved to the anchoring hole through the rear side of the tensioning screw hole after passing through the tensioning screw hole, so as to fix the prestressed steel bar in the anchoring hole.

[0046] The utility model discloses an encirclement type end plate connecting assembly, like Figure 4 And Figure 5 As shown in the figure, it comprises an upper end plate 110, a lower end plate 120, a plug rod 200, a rib barrel 300 and an inner sleeve 400. The upper end plate 110 is located above the lower end plate 120, the upper end plate 110 is provided with an upper connecting hole 111, the lower end plate 120 is provided with a lower connecting hole 121, and the upper connecting hole 111 and the lower connecting hole 121 can be butted against each other when the upper end plate 110 and the lower end plate 120 are connected. The rib barrel 300 comprises a rib barrel body 310 and a plurality of elastic fins 320, the rib barrel body 310 can be in the shape of a cylinder, and the elastic fins 320 can be elastically deformed. The lower end of the elastic fin 320 is connected with the rib barrel body 310, and the upper end of the elastic fin 320 opens outward, i.e. opens outward relative to the axis of the rib barrel body 310, which provides a moving space for the elastic contraction of the elastic fin 320.

[0047] The plug rod 200 comprises a connecting part 220 at its upper end and a clamping part 210 at its lower end, the connecting part 220 is inserted into the upper connecting hole 111 and connected with the upper end plate 110. The top surface of the rib barrel body 310 is provided with a clamping groove, the clamping part 210 is clamped and fixed in the clamping groove, the elastic fins 320 are arranged around the plug rod 200, do not interfere with the insertion of the clamping part 210 of the plug rod 200 into the clamping groove, and do not interfere with the elastic expansion and contraction of the elastic fins 320. The inner sleeve 400 is fixed in the lower connecting hole 121, during the insertion of the plug rod 200 and the rib barrel 300 into the inner sleeve 400, the upper end of the elastic fin 320 can contract inward, and after the rib barrel 300 passes through the inner sleeve 400, the upper end of the elastic fin 320 rebounds and opens to be clamped on the bottom surface of the inner sleeve 400.

[0048] During the connection, the connecting part 220 is inserted into the upper connecting hole 111 and connected with the upper end plate 110, then the clamping part 210 is inserted into the clamping groove and clamped and fixed in the clamping groove, the inner sleeve 400 is fixed in the lower connecting hole 121, and finally the plug rod 200 and the rib barrel 300 are inserted into the inner sleeve 400. During the insertion, the upper end of the elastic fin 320 contracts inward due to the blockage of the inner wall of the inner sleeve 400, so that the rib barrel 300 smoothly passes through the inner sleeve 400. After the rib barrel 300 passes through the inner sleeve 400, the upper end of the elastic fin 320 rebounds and opens to be clamped on the bottom surface of the inner sleeve 400, which limits the rib barrel 300 from separating from the inner sleeve 400, the plug rod 200 is connected with the lower end plate 120, so that the upper end plate 110 and the lower end plate 120 are connected together.

[0049] In the embodiment, the clamping part 210 is clamped and fixed in the clamping groove, and the connection between the umbrella rib barrel 300 and the insertion rod 200 is realized by clamping and fixing, which limits the movement of the insertion rod 200 relative to the umbrella rib barrel 300, and the position of the insertion rod 200 relative to the umbrella rib barrel 300 in the axial direction is relatively fixed, thereby ensuring the smooth connection of the upper end plate 110 and the lower end plate 120.

[0050] In some embodiments, the outer peripheral wall of the inner sleeve 400 is provided with a first outer thread 410, the inner wall of the lower connecting hole 121 is provided with a first inner thread 122 matched with the first outer thread 410, and the inner sleeve 400 is threadedly connected with the lower end plate 120. The threaded connection is easy to operate and simple to assemble.

[0051] In some embodiments, the clamping groove is arranged on the top surface of the umbrella rib barrel body 310, the upper end of the clamping groove naturally has an opening, the caliber of the upper end of the clamping groove is smaller than the inner diameter of the clamping groove, and a step structure is formed at the opening position. The insertion rod 200 further includes a main rod part connecting the clamping part 210 and the connecting part 220. The caliber of the opening of the upper end of the clamping groove is smaller than the outer diameter of the clamping part 210. When the clamping part 210 moves upward, it is blocked by the step structure, so that the clamping part 210 is difficult to disengage from the clamping groove through the opening of the upper end of the clamping groove, and thus can be stably clamped in the clamping groove. At the same time, the caliber of the opening of the upper end of the clamping groove is larger than the outer diameter of the main rod part, so that the main rod part can extend out of the opening of the upper end of the clamping groove.

[0052] Further, the lower end of the elastic fin 320 is connected with the top surface of the umbrella rib barrel body 310, the lower end of the elastic fin 320 protrudes from the inner wall of the clamping groove, and the inner side surface of the lower end of the elastic fin 320 encloses the opening of the upper end of the clamping groove. Therefore, the step structure is formed by the lower end of the elastic fin 320 in the embodiment, and no additional step structure needs to be arranged for the clamping groove, thereby simplifying the overall structure of the umbrella rib barrel 300.

[0053] In the embodiment, the thickness of the elastic fin 320 can be greater than the wall thickness of the umbrella rib barrel body 310, so that the lower end of the elastic fin 320 can protrude from the inner wall of the clamping groove.

[0054] In some embodiments, the caliber of the opening of the bottom surface of the umbrella rib barrel body 310 is smaller than the inner diameter of the clamping groove, and the opening is arranged on the bottom surface of the umbrella rib barrel body 310, thereby reducing the material usage of the umbrella rib barrel body 310 and facilitating the observation of the clamping condition of the clamping part 210 in the clamping groove. Since the caliber of the opening of the bottom surface of the umbrella rib barrel body 310 is smaller than the inner diameter of the clamping groove, the clamping part 210 is difficult to disengage from the clamping groove through the opening of the bottom surface of the umbrella rib barrel body 310, thereby further limiting the movement of the insertion rod 200 relative to the umbrella rib barrel 300, and the clamping part 210 can be more stably clamped in the clamping groove.

[0055] In some embodiments, the umbrella rib tube body 310 and the elastic fins 320 are integrally formed, which facilitates the manufacturing and forming of the umbrella rib tube 300 and can strengthen the connection between the umbrella rib tube body 310 and the elastic fins 320.

[0056] In some embodiments, the outer wall of the connecting part 220 is provided with a second external thread, and the inner wall of the upper connecting hole 111 is provided with a second internal thread 112 that is adapted to the second external thread. The connecting part 220 is threadedly connected to the upper end plate 110. The threaded connection method is easy to operate and simpler to assemble.

[0057] In some embodiments, both the upper end plate 110 and the lower end plate 120 are provided with tension threaded holes. When tensioning the prestressed steel bars, tension screws can be inserted into the tension threaded holes and connected to the upper end plate 110 or the lower end plate 120, thereby enabling tensioning of the prestressed steel bars in prestressed concrete members.

[0058] Furthermore, both the upper end plate 110 and the lower end plate 120 are provided with anchoring holes, in which the prestressed steel bars in the precast concrete pile can be fixed.

[0059] Furthermore, the tension threaded hole can be connected to the anchor hole, which facilitates the prestressed steel bar head to move laterally to the anchor hole after passing through the tension threaded hole, so that the prestressed steel bar is fixed in the anchor hole.

[0060] An embodiment of this utility model provides a pile connection structure, such as... Figure 6 As shown, the assembly includes an upper pile 510, a lower pile 520, and a ring-shaped end plate connecting assembly as described in any of the above embodiments. Specific details regarding the ring-shaped end plate connecting assembly can be found in the above embodiments and will not be repeated here. The upper pile 510 is positioned above the lower pile 520. The upper end plate 110 is fixed to the lower end face of the upper pile 510, and the lower end plate 120 is fixed to the upper end face of the lower pile 520. After the elastic fin 320 is engaged with the bottom surface of the lower end plate 120 or the bottom surface of the inner sleeve 400, the lower ends of the insert rod 200 and the umbrella rib tube 300 extend below the lower end plate 120. In this embodiment, a clearance hole 521 is provided on the upper end face of the lower pile 520 to mate with the lower connecting hole 121. The lower ends of the insert rod 200 and the umbrella rib tube 300 can be inserted into the clearance hole 521 to avoid interference with the concrete structure of the lower pile 520. This design allows the lower end plate 120 to be tightly fixed to the top surface of the lower pile 520, improving the stability of the fixation.

[0061] In the process of connecting the piles, the connecting part 220 is inserted into the upper connecting hole 111 and connected with the upper end plate 110, the clamping part 210 is inserted into the clamping groove 311 and clamped and fixed in the clamping groove 311, then the upper pile section 510 is lifted to align with the lower pile section 520, the insertion rod and the umbrella rib cylinder are aligned with the lower connecting hole 121, the upper pile section 510 is placed on the top surface of the lower pile section 520, the insertion rod and the umbrella rib cylinder are pressed into the lower connecting hole 121 by the weight of the upper pile section 510, the upper end of the elastic fin 320 is inwardly retracted, so that the umbrella rib cylinder 300 smoothly passes through the lower connecting hole 121. After the umbrella rib cylinder 300 passes through the lower connecting hole 121, the upper end of the elastic fin 320 rebounds and opens to be clamped on the bottom surface of the lower end plate 120, so as to limit the umbrella rib cylinder 300 from being separated from the lower end plate 120, thereby realizing the connection of the upper pile section 510 and the lower pile section 520.

[0062] Alternatively, in the process of connecting the piles, the connecting part 220 is inserted into the upper connecting hole 111 and connected with the upper end plate 110, then the clamping part 210 is inserted into the clamping groove and clamped and fixed in the clamping groove, the inner sleeve is fixed in the lower connecting hole 121, then the upper pile section 510 is lifted to align with the lower pile section 520, the insertion rod and the umbrella rib cylinder are aligned with the inner sleeve, the upper pile section 510 is placed on the top surface of the lower pile section 520, the lower end of the insertion rod and the umbrella rib cylinder are passed through the inner sleeve by the weight of the upper pile section 510, the elastic fin 320 is pressed and retracted and then rebounds to be clamped on the bottom surface of the inner sleeve, so as to limit the umbrella rib cylinder 300 from being separated from the inner sleeve, thereby realizing the connection of the upper pile section 510 and the lower pile section 520.

[0063] The terms and words used in the above description and claims are not limited by the literal meaning but are merely used by the applicant to enable a clear and consistent understanding of the present application. Accordingly, it should be understood by those skilled in the art that the description of various embodiments of the present application is provided only to explain the present application and is not intended to limit the present application as defined by the appended claims and their equivalents.

Claims

1. A wrap-around end plate connection assembly, characterized by: The umbrella rib tube includes an umbrella rib tube body and a plurality of elastic fins, the lower end of the elastic fin is connected with the umbrella rib tube body, and the upper end of the elastic fin is opened outward; the insertion rod includes a connecting part at the upper end thereof and a clamping part at the lower end thereof, the connecting part is inserted into the upper connecting hole and connected with the upper end plate; the top surface of the umbrella rib tube body is provided with a clamping groove, the clamping part is clamped and fixed in the clamping groove, and the elastic fins are surrounded around the insertion rod; during the insertion of the insertion rod and the umbrella rib tube into the lower connecting hole, the upper end of the elastic fin can be contracted inward, and after the umbrella rib tube passes through the lower connecting hole, the upper end of the elastic fin is rebounded and opened to be clamped on the bottom surface of the lower end plate.

2. The wraparound end panel connection assembly of claim 1, wherein: The diameter of the opening at the upper end of the clamping groove is smaller than the diameter of the clamping groove, the insertion rod further includes a main rod part connecting the clamping part and the connecting part, the diameter of the opening at the upper end of the clamping groove is smaller than the outer diameter of the clamping part, and the diameter of the opening at the upper end of the clamping groove is larger than the outer diameter of the main rod part.

3. The wraparound end panel connection assembly of claim 2, wherein: The lower end of the elastic fin is connected with the top surface of the umbrella rib tube body, the lower end of the elastic fin protrudes from the inner wall of the clamping groove, and the inner side surface of the lower end of the elastic fin forms the opening at the upper end of the clamping groove.

4. The wraparound end panel connection assembly of claim 1, wherein: The diameter of the opening at the bottom surface of the umbrella rib tube body is smaller than the diameter of the clamping groove.

5. A wrap-around end plate connection assembly characterized by: The umbrella rib tube includes an umbrella rib tube body and a plurality of elastic fins, the lower end of the elastic fin is connected with the umbrella rib tube body, and the upper end of the elastic fin is opened outward; the insertion rod includes a connecting part at the upper end thereof and a clamping part at the lower end thereof, the connecting part is inserted into the upper connecting hole and connected with the upper end plate; the top surface of the umbrella rib tube body is provided with a clamping groove, the clamping part is clamped and fixed in the clamping groove, and the elastic fins are surrounded around the insertion rod; during the insertion of the insertion rod and the umbrella rib tube into the lower connecting hole, the upper end of the elastic fin can be contracted inward, and after the umbrella rib tube passes through the lower connecting hole, the upper end of the elastic fin is rebounded and opened to be clamped on the bottom surface of the lower end plate.

6. The wraparound end panel connection assembly of claim 5, wherein: The outer peripheral wall of the inner sleeve is provided with a first external thread, the inner wall of the lower connecting hole is provided with a first internal thread matched with the first external thread, and the inner sleeve is threadedly connected with the lower end plate.

7. The wraparound end panel connection assembly of claim 5, wherein: The diameter of the opening at the upper end of the clamping groove is smaller than the diameter of the clamping groove, the insertion rod further includes a main rod part connecting the clamping part and the connecting part, the diameter of the opening at the upper end of the clamping groove is smaller than the outer diameter of the clamping part, and the diameter of the opening at the upper end of the clamping groove is larger than the outer diameter of the main rod part.

8. The wraparound end panel connection assembly of claim 7, wherein: The lower end of the elastic fin is connected with the top surface of the umbrella rib tube body, the lower end of the elastic fin protrudes from the inner wall of the clamping groove, and the inner side surface of the lower end of the elastic fin forms the opening at the upper end of the clamping groove.

9. The wraparound end panel connection assembly of claim 5, wherein: The diameter of the opening at the bottom surface of the umbrella rib tube body is smaller than the diameter of the clamping groove.

10. A pile connection structure, characterized by: The ring embracing end plate connecting assembly is arranged between the upper pile and the lower pile, the upper end plate is fixed on the lower end surface of the upper pile, the lower end plate is fixed on the upper end surface of the lower pile, and the upper end surface of the lower pile is provided with a position avoiding hole which is matched with the lower connecting hole.

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