Connecting structure for pipe pile

Abstract

The utility model belongs to the technical field of solar power generation, and particularly relates to a connecting structure for a tubular pile, which comprises an end plate, an annular tension band, a screw rod and an adjusting nut, a plurality of threaded holes are formed in the end plate in the axial direction of the end plate according to a preset array shape. The multiple screws are connected with the threaded holes of the end plate in a screwed mode, one ends of the multiple screws extend out of the top face of the end plate and are connected with pre-connection equipment, and the other ends of the multiple screws penetrate through the threaded holes of the end plate to be arranged in the pipe pile. The multiple adjusting nuts are installed on the portions, extending out of the top face of the end plate, of the screws correspondingly, the top faces, located above the screws, of the adjusting nuts form an installation plane of pre-connection equipment, and the annular tension band is installed at the bottom of the end plate. The connecting structure and the pipe pile are assembled into a whole and then assembled with the pre-connecting equipment, the pre-connecting equipment is installed through field operation, the flatness of the installation face is guaranteed by adjusting the adjusting nuts to the same height, installation is easy, welding is not needed, cost is saved, and the construction period is shortened.

Description

Technical Field

[0001] This utility model belongs to the field of solar power generation technology, and specifically relates to a connection structure for pipe piles. Background Technology

[0002] Solar energy, as a clean and renewable energy source, is being used more and more widely in production and daily life. With the rapid development of my country's solar thermal industry, tower-type concentrating solar collector technology, with its high thermal efficiency and good grid peak-shaving capabilities, is gaining wider market application due to its clean and green attributes, as well as its broad active and reactive power regulation and inertia support capabilities. In tower-type concentrating solar collector systems, the number of heliostats is very large. Heliostats are solar radiation collection devices used to track the sun and direct sunlight to a fixed location. The heliostats are mounted on columns via rotary reducers and support structures, and then fixed to a base on the ground by the columns.

[0003] The existing technology uses prestressed concrete pipe piles as the support columns, which include a column body and an end plate. The top of the column body has a metal flange plate, and the top surface of the end plate has a circular hole in the center, with a ring of welding bolts arranged around the center of the hole. The welding bolts extend from the bottom to the top surface of the end plate. When installing the column and the rotary reducer, the end of the column body with the metal flange plate should be vertically upward, and the other end should be fixed to the ground base. Then, the flat end of the end plate with the welding bolts should be welded to the metal flange plate of the column body. The rotary reducer has a flange and flange mounting holes that match the welding bolts of the end plate. The flange mounting holes of the rotary reducer are aligned with the welding bolts of the end plate for installation. After the flange face of the rotary reducer is in contact with the top surface of the end plate, it is fastened to the welding bolts of the end plate with nuts. The existing technology has the following problems: 1. It requires on-site welding installation, which is a complex process, demands extremely high operator skill levels, is difficult to perform, and has high installation costs; 2. On-site inspection of welding quality is impossible. If welding problems such as porosity, slag inclusions, incomplete penetration, cracks, or pits occur, the rotary reducer above the column driving the heliostat to rotate for extended periods will cause cracking, affecting the normal operation of the heliostat and resulting in poor durability and reliability; 3. Regular maintenance and inspection are required to ensure stable operation, increasing labor costs. Therefore, a column installation structure that can solve the problems of the existing technology is needed. Utility Model Content

[0004] This utility model addresses the shortcomings of existing technologies by proposing a novel connection structure for pipe piles. After assembling the connection structure with the pipe pile as a whole, it is then assembled with a pre-connection device. The pre-connection device is installed on-site, and the flatness of the installation surface is ensured by adjusting each adjusting nut to the same height. The installation is simple, requires no welding, saves costs, and shortens the construction period.

[0005] To achieve the above objectives, the present invention provides a connection structure for pipe piles, wherein the pipe piles are fixedly installed on the ground, one end of the connection structure is fixedly installed on the top of the pipe piles, and the other end of the connection structure is fixedly connected to a preset connection device, including an end plate, an adjusting nut, and a screw.

[0006] The end plate has multiple threaded holes in a predetermined array shape along its axial direction; the screw has multiple screws that are screwed into the threaded holes of the end plate, one end of each screw extends out of the top surface of the end plate and is connected to a pre-connection device, and the other end passes through the threaded holes of the end plate and is built into the inside of the pipe pile;

[0007] The adjusting nut is a plurality of such nuts, which are respectively mounted on each of the screws extending from the top surface of the end plate. The top surfaces of the adjusting nuts located above each screw form the mounting plane of the pre-connected device.

[0008] Furthermore, the length of the screw is equal to the length embedded in the pipe pile, the thickness of the end plate, the installation height and adjustment length of the adjusting nut, the installation thickness of the pre-connected equipment, and the safety allowance length.

[0009] Furthermore, the length of the screw embedded in the pipe pile is 20 times the diameter of the screw.

[0010] Furthermore, the mounting surface of the pre-connecting device has multiple through holes, the arrangement of the threaded holes of the end plate matches the arrangement of the through holes of the pre-connecting device, and the number of threaded holes of the end plate and the number of screws matches the number of through holes of the pre-connecting device.

[0011] Furthermore, two adjusting nuts are installed on each of the screws extending from the top surface of the end plate;

[0012] The adjusting nut located above the screw adjusts the flatness of the mounting surface, and the adjusting nut located below the screw fits tightly against the adjusting nut above it.

[0013] Furthermore, the threaded hole of the end plate penetrates the end plate.

[0014] Furthermore, it also includes a ring-shaped hoop;

[0015] The annular hoop is installed at the bottom of the end plate and is coaxial with the central axis of the end plate. The annular hoop surrounds the outer wall of the pipe pile located at the bottom of the end plate.

[0016] Furthermore, the inner ring of the annular hoop has multiple reinforcing ribs distributed along its circumference. The reinforcing ribs are built into the inside of the pipe pile and are located between the threaded hole of the end plate and the edge of the end plate.

[0017] Furthermore, the pre-connected device is fixedly installed on the connection structure by locking the screw with a lock nut.

[0018] The beneficial effects of this utility model are:

[0019] First, the end plate of the connection structure of this utility model is provided with multiple threaded holes. The screw is screwed into the threaded holes for connection. At the same time, one end of the screw extending out of the end plate is embedded in the pipe pile, and the other end extending out of the end plate is connected to the pre-connection equipment. Multiple adjusting nuts are installed on each screw extending out of the top surface of the end plate, and the tops of the multiple nuts form the mounting surface of the pre-connection equipment. This allows the connection structure to be assembled with the pipe pile as a whole before being assembled with the pre-connection equipment. On-site installation of the pre-connection equipment can ensure the flatness of the mounting surface by adjusting each adjusting nut to the same height. The installation is simple, requires no welding, saves costs, and shortens the construction period.

[0020] Secondly, each screw of this utility model is equipped with two adjusting nuts. The two adjusting nuts can bear the force generated by the movement of the pre-connected equipment, effectively prevent screw deformation, ensure the flatness of the mounting plane formed by the top of the adjusting nuts, and make the pre-connected equipment work smoothly.

[0021] Third, the annular hoop of this utility model is installed at the bottom of the end plate and surrounds the outer wall of the pipe pile at the bottom of the end plate. Multiple reinforcing ribs are alternately distributed along the inner circle of the annular hoop, which can strengthen the connection between the end plate and the pipe pile, prevent the screw at the joint of the end plate and the pipe pile from being deformed by stress, protect the structure, and improve the service life. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of the connection structure for pipe piles according to this utility model;

[0023] Figure 2 This is a top view of the connection structure for pipe piles according to this utility model.

[0024] Among them, 1-end plate; 10-threaded hole; 2-ring ring; 3-screw; 4-adjusting nut; A-pipe pile; B-pre-connection equipment. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] like Figure 1 , Figure 2 As shown, this utility model provides a connection structure for pipe piles. One end of the connection structure is fixedly installed with pipe pile A, and the other end is fixedly installed with pre-connection device B. It includes an end plate 1, an annular hoop 2, a screw 3, and an adjusting nut 4. The end plate 1 includes a threaded hole 10.

[0027] An end plate 1 is installed on top of the pipe pile A. Multiple threaded holes 10 are formed in a predetermined array along the axial direction of the end plate 1, with the thread length of each hole 10 extending through the thickness of the end plate 1. Multiple screws 3 are present, each being a fully threaded screw. The screws 3 are screwed into the threaded holes 10. One end of each screw 3 extends beyond the top surface of the end plate 1 and connects to a pre-connection device B, while the other end passes through the threaded holes 10 of the end plate 1 and is housed within the pipe pile A. An annular hoop 2 is installed at the bottom of the end plate 1, coaxial with its central axis. The annular hoop 2 surrounds the outer wall of the pipe pile A at the bottom of the end plate 1. Multiple reinforcing ribs are alternately distributed along the inner circumference of the annular hoop 2. These reinforcing ribs are housed within the pipe pile A and located between the threaded holes 10 and the edge of the end plate 1. They strengthen the connection between the end plate 1 and the pipe pile A, prevent deformation of the screws 3 at the joint of the end plate 1 and the pipe pile A, protect the structure, and improve service life.

[0028] In this embodiment, the array shape of the multiple threaded holes 10 along the axial direction of the end plate 1 is a ring array.

[0029] The mounting surface of the pre-connected device B and the connection structure has multiple through holes for mounting screws 3. The arrangement of multiple threaded holes 10 along the axial direction of the end plate 1 matches the arrangement of the through holes of the pre-connected device B. The number of screws 3 and threaded holes 10 matches the number of through holes of the pre-connected device B.

[0030] There are multiple adjusting nuts 4, which are installed on each screw 3 that extends out of the top surface of the end plate 1. The top surface of the adjusting nut 4 located above each screw 3 forms the mounting plane of the pre-connected device B. The adjusting nut 4 is used to adjust the flatness of the mounting plane.

[0031] Preferably, two adjusting nuts 4 are installed on each screw 3 extending from the top surface of the end plate 1. The two adjusting nuts 4 can bear the force generated by the movement of the pre-connected device B, effectively prevent the screw 3 from deforming, and ensure the stability of the tops of the multiple adjusting nuts 4 being on the same plane.

[0032] The screw 3 passes through the through hole on the pre-connection device B, and the pre-connection device B is fitted with the top surface of each adjusting nut 4 and fastened to the screw 3 by locking the nut.

[0033] The length of the end of the screw 3 that extends into the end plate 1 and the pipe pile A is greater than the length of the top surface that extends out of the end plate 1. The length of the screw 3 = the length embedded in the pipe pile A + the thickness of the end plate 1 + the installation height and adjustment length of the adjusting nut 4 + the installation thickness of the pre-connected device B + the safety reserve length. The diameter of the screw 3 is matched with the stress conditions of the pre-connected device B.

[0034] Preferably, the thickness of the end plate 1 is 20-30mm, and the length of the screw 3 embedded in the pipe pile A is 20 times the diameter of the screw 3.

[0035] Multiple helical stirrups are provided inside the pipe pile A along its central axis. These stirrups are used to improve the structural strength and stability of the pipe pile A. The threaded rods 3 extending into the pipe pile A are spaced apart from the helical stirrups.

[0036] Example 1:

[0037] The process method for the connection structure of pipe piles according to this utility model is as follows:

[0038] First, the annular hoop 2 is welded to the bottom surface of the end plate 1. The screw rod 3 is screwed into each threaded hole 10 of the end plate 1, and the length of the screw rod 3 at both ends of the end plate 1 meets the design requirements. Then, the end plate 1 with the annular hoop 2 and the screw rod 3 and the spiral stirrup are placed into the mold of the pipe pile A. Concrete is poured into the mold, and the concrete is shaped by the centrifugal force of the mold. The concrete fills the space enclosed by the annular hoop 2 and the end plate 1. The reinforcing ribs of the annular hoop 2, part of the screw rod 3 and the spiral stirrup are embedded in the inside of the pipe pile A, completing the manufacturing process of the end plate 1, the annular hoop 2 and the screw rod 3 and the pipe pile A. Finally, the adjusting nut 4 is installed on the screw rod 3 at the top of the end plate 1 to complete the manufacturing process of the connection structure.

[0039] Example 2:

[0040] Based on Example 1, the connection structure used for the pipe pile is applied to the installation of the heliostat equipment. One end of the connection structure is fixedly installed to the pipe pile, and the other end is fixedly installed to the rotary reducer of the heliostat equipment. The installation method is as follows:

[0041] First, the pipe pile with end plate 1, annular hoop 2, screw 3 and adjusting nut 4 is vertically installed on the ground base of the heliostat field. Two adjusting nuts 4 are installed on each screw 3. All the adjusting nuts 4 located at the top are adjusted to the same height, and the adjusting nuts 4 located at the bottom are adjusted to lock with the adjusting nuts 4 located at the top. Then, the mounting end of the rotary reducer of the heliostat equipment is fitted onto each screw 3. The rotary reducer is fixed to the connecting structure by tightening the locking nut, thus completing the assembly of the pipe pile with the connecting structure and the rotary reducer.

[0042] The above description is merely an embodiment of this utility model, and common knowledge regarding specific structures and characteristics is not described in detail here. It will be apparent to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this utility model is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A connection structure for pipe piles, wherein the pipe piles are fixedly installed on the ground, one end of the connection structure is fixedly installed on the top of the pipe piles, and the other end of the connection structure is fixedly connected to a pre-set connection device, characterized in that, It includes an end plate (1), a screw (3), and an adjusting nut (4); The end plate (1) has multiple threaded holes in a predetermined array shape along its axial direction; the screw (3) has multiple screws that are screwed into the threaded holes of the end plate (1), one end of the multiple screws (3) extends out of the top surface of the end plate (1) and is connected to the pre-connection device, and the other end passes through the threaded holes of the end plate (1) and is built into the inside of the pipe pile; The adjusting nut (4) is a plurality of such nuts, and the plurality of adjusting nuts (4) are respectively installed on each of the screws (3) extending out of the top surface of the end plate (1). The top surface of the adjusting nut (4) located above each of the screws (3) forms the mounting plane of the pre-connected device.

2. The connection structure for pipe piles according to claim 1, characterized in that, The length of the screw (3) = the length of the pipe pile buried + the thickness of the end plate (1) + the installation height and adjustment length of the adjusting nut (4) + the installation thickness of the pre-connected equipment + the safety reserved length.

3. The connection structure for pipe piles according to claim 1, characterized in that, The length of the screw (3) embedded in the pipe pile is 20 times the diameter of the screw (3).

4. The connection structure for pipe piles according to claim 1, characterized in that, The mounting surface of the pre-connecting device has multiple through holes. The arrangement of the threaded holes of the end plate (1) matches the arrangement of the through holes of the pre-connecting device. The number of threaded holes of the end plate (1) and the number of screws (3) match the number of through holes of the pre-connecting device.

5. The connection structure for pipe piles according to claim 1, characterized in that, Two adjusting nuts (4) are installed on each of the screws (3) extending from the top surface of the end plate (1); The adjusting nut (4) located above the screw (3) adjusts the flatness of the mounting plane, and the adjusting nut (4) located below the screw (3) fits tightly with the adjusting nut (4) above it.

6. The connection structure for pipe piles according to claim 1, characterized in that, The threaded hole of the end plate (1) passes through the end plate (1).

7. The connection structure for pipe piles according to claim 1, characterized in that, It also includes a ring-shaped hoop (2); The annular hoop (2) is installed at the bottom of the end plate (1) and is coaxial with the central axis of the end plate (1). The annular hoop (2) surrounds the outer wall of the pipe pile located at the bottom of the end plate (1).

8. The connection structure for pipe piles according to claim 7, characterized in that, The inner ring of the ring hoop (2) has multiple reinforcing ribs distributed along its circumference. The reinforcing ribs are built into the inside of the pipe pile and are located between the threaded hole of the end plate (1) and the edge of the end plate (1).

9. The connection structure for pipe piles according to claim 1, characterized in that, The pre-connected device is locked and fixed to the connecting structure by locking the screw (3) with a lock nut.

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