A mechanical connector for pipe piles

Abstract

The present invention discloses a novel mechanical connector for pipe piles in the technical field of connectors, including a first pipe pile. An octagonal bolt is arranged on the upper part of the first pipe pile. A first connecting plate is arranged at the upper end of the first pipe pile. A through hole is arranged on the first connecting plate. A second connecting plate is arranged at the upper end of the first connecting plate. A threaded hole is arranged on the second connecting plate. A second pipe pile is arranged at the upper end of the second connecting plate. An opening groove is arranged at the bottom of the second pipe pile. Two sliding grooves are arranged inside the opening groove. An upper mounting seat is arranged between the two sliding grooves. A lower mounting seat is arranged at the bottom of the upper mounting seat. Sliders are arranged at both the left and right ends of the lower mounting seat. Two transmission rods are arranged between the upper mounting seat and the lower mounting seat. A hydraulic rod is arranged between the two transmission rods. Push plates are arranged on both the left and right sides of the hydraulic rod. By connecting in this mechanical manner, not only the welding part is reduced, but also the installation between piles is made more convenient, and the connection between piles is made more stable and reliable.

Description

Technical Field

[0001] The present invention relates to the technical field of connectors, and particularly to a mechanical connector for pipe piles. Background Art

[0002] Pipe piles are divided into prestressed concrete pipe piles and prestressed high-strength concrete pipe piles according to the concrete strength grade or effective prestress. Pipe piles are generally used as foundation piles in civil buildings, municipal engineering or railways. As a foundation pile, a pipe pile is a force-transferring member that transfers all or part of the load of a building to the foundation and has a certain stiffness and bending resistance. Usually, to meet the building height requirements, piles are stacked on top of each other. Generally, between piles, they are mostly fixed by welding metal flange plates and then connected into one body. The welding quality requirements are relatively high. Since the pile body is large and there are many welding parts, it is difficult to ensure the welding quality. At the same time, the cooling time after welding is relatively long, which affects the construction. For this reason, we propose a mechanical connector for pipe piles. Summary of the Invention

[0003] The purpose of the present invention is to provide a mechanical connector for pipe piles to solve the problems raised in the above background art.

[0004] To achieve the above purpose, the present invention provides the following technical solution: A mechanical connector for pipe piles, including a first pipe pile, an octagonal bolt is arranged on the upper part of the first pipe pile, a first connecting plate is arranged at the upper end of the first pipe pile, through holes are arranged on the first connecting plate, a second connecting plate is arranged at the upper end of the first connecting plate, threaded holes are arranged on the second connecting plate, a second pipe pile is arranged at the upper end of the second connecting plate, an opening groove is arranged at the bottom of the second pipe pile, two sliding grooves are arranged inside the opening groove, an upper mounting seat is arranged between the two sliding grooves, a lower mounting seat is arranged at the bottom of the upper mounting seat, sliders are arranged at both the left and right ends of the lower mounting seat, two transmission rods are arranged between the upper mounting seat and the lower mounting seat, a hydraulic rod is arranged between the two transmission rods, push plates are arranged on both the left and right sides of the hydraulic rod, and central through holes are arranged inside the first pipe pile, the first connecting plate, the second connecting plate and the second pipe pile.

[0005] Preferably, the octagonal bolt and the first pipe pile are arranged as an integral structure, and the positions of the through holes, the threaded holes and the opening groove correspond to the position of the octagonal bolt.

[0006] Preferably, the sliding grooves are arranged on the upper parts of the left and right inner walls of the opening groove, and the sliders are arranged inside the sliding grooves.

[0007] Preferably, the upper end of the upper mounting seat is fixedly connected to the upper inner wall of the opening groove, and the bottom end of the lower mounting seat is in contact with the upper end of the octagonal bolt.

[0008] Preferably, a first telescopic rod is provided on the left inner wall of the opening groove, a first clamping plate is provided on the right side of the first telescopic rod, a second clamping plate is provided on the right side of the first clamping plate, a second telescopic rod is provided on the right side of the second clamping plate, and the right end of the second telescopic rod is provided on the right inner wall of the opening groove.

[0009] Preferably, the first telescopic rod and the second telescopic rod are provided at the bottom of the sliding groove. The first clamping plate and the second clamping plate are located at the bottom end of the lower mounting seat with a certain gap left, and the first clamping plate and the second clamping plate are provided on the left and right sides of the octagonal bolt.

[0010] Compared with the prior art, the beneficial effects of the present invention are as follows: The first connecting plate and the second connecting plate respectively pass through the octagonal bolt and are placed on the upper end of the first pipe pile. The opening groove of the second pipe pile is aligned with the octagonal bolt on the first pipe pile, and the octagonal bolt is placed inside the opening groove. Push the lower mounting seat upward, the transmission rod moves in the opposite direction, the hydraulic rod contracts, the lower mounting seat approaches the upper mounting seat, the lower mounting seat moves away from the octagonal bolt, install the nut, release the lower mounting seat, the hydraulic rod extends, the transmission rod resets, the lower mounting seat moves downward, and the bottom end of the lower mounting seat is in close contact with the upper end of the octagonal bolt. The lower mounting seat always gives an extrusion force to the octagonal bolt, making the octagonal bolt more stable in the opening groove, strengthening the connection between piles. By connecting in this mechanical way, not only the welding part is reduced, but also the installation between piles is more convenient, making the connection between piles more stable and reliable, effectively reducing the installation time and improving the construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 is a schematic diagram of the pipe pile connection structure of the present invention;

[0012] Figure 2 is a schematic diagram of the internal structure of the opening groove of the present invention;

[0013] Figure 3 is a partially enlarged schematic diagram of the opening groove of the present invention.

[0014] In the figure: 1 first pipe pile, 2 first connecting plate, 3 second connecting plate, 4 opening groove, 41 sliding groove, 42 transmission rod, 43 upper mounting seat, 44 hydraulic rod, 45 pushing plate, 46 slider, 47 lower mounting seat, 5 second pipe pile, 6 central through hole, 7 threaded hole, 8 through hole, 9 octagonal bolt, 91 first clamping plate, 92 first telescopic rod, 93 second clamping plate, 94 second telescopic rod. DETAILED DESCRIPTION OF THE INVENTION

[0015] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0016] Please refer to Figures 1-3 , the present invention provides a technical solution: a mechanical connector for pipe piles, including a first pipe pile 1, an octagonal bolt 9 is arranged on the upper part of the first pipe pile 1, a first connecting plate 2 is arranged at the upper end of the first pipe pile 1, a through hole 8 is arranged on the first connecting plate 2, a second connecting plate 3 is arranged at the upper end of the first connecting plate 2, a threaded hole 7 is arranged on the second connecting plate 3, a second pipe pile 5 is arranged at the upper end of the second connecting plate 3, an opening groove 4 is arranged at the bottom of the second pipe pile 5, two sliding grooves 41 are arranged inside the opening groove 4, an upper mounting seat 43 is arranged between the two sliding grooves 41, a lower mounting seat 47 is arranged at the bottom of the upper mounting seat 43, sliding blocks 46 are arranged at both the left and right ends of the lower mounting seat 47, two transmission rods 42 are arranged between the upper mounting seat 43 and the lower mounting seat 47, a hydraulic rod 44 is arranged between the two transmission rods 42, push plates 45 are arranged on both the left and right sides of the hydraulic rod 44, the first connecting plate 2 and the second connecting plate 3 respectively pass through the octagonal bolt 9 through the through hole 8 and the threaded hole 7 and are placed at the upper end of the first pipe pile 1, then the opening groove 4 of the second pipe pile 5 is aligned with the octagonal bolt 9 on the first pipe pile 1, so that the octagonal bolt 9 is placed inside the opening groove 4, the upper end of the octagonal bolt 9 is in contact with the bottom end of the lower mounting seat 47, the lower mounting seat 47 is pushed upward, so that the sliding blocks 46 move upward along the sliding grooves 41, the transmission rods 42 are stressed and move in opposite directions, the hydraulic rod 44 contracts, the lower mounting seat 47 moves closer to the upper mounting seat 43, the lower mounting seat 47 moves away from the octagonal bolt 9, an installation nut is installed, the lower mounting seat 47 is released, the hydraulic rod 44 extends, the transmission rods 42 reset, and the sliding blocks 46 drive the lower mounting seat 47 to move downward, so that the bottom end of the lower mounting seat 47 is closely attached to the upper end of the octagonal bolt 9. Through this mechanical connection method, not only the welding part is reduced, but also the installation between piles is more convenient, the connection between piles is more stable and reliable, the installation time is effectively reduced, and the construction efficiency is improved. Central through holes 6 are arranged inside the first pipe pile 1, the first connecting plate 2, the second connecting plate 3 and the second pipe pile 5.

[0017] Among them, the octagonal bolt 9 and the first pipe pile 1 are arranged as an integral structure, the positions of the through hole 8, the threaded hole 7 and the opening groove 4 correspond to the position of the octagonal bolt 9, the first connecting plate 2 and the second connecting plate 3 respectively pass through the octagonal bolt 9 through the through hole 8 and the threaded hole 7 and are placed at the upper end of the first pipe pile 1, then the opening groove 4 of the second pipe pile 5 is aligned with the octagonal bolt 9 on the first pipe pile 1, so that the octagonal bolt 9 is placed inside the opening groove 4;

[0018] The sliding grooves 41 are arranged on the upper parts of the inner walls on the left and right sides of the opening groove 4. The sliding blocks 46 are arranged inside the sliding grooves 41. Push the lower mounting seat 47 upward so that the sliding blocks 46 move upward along the sliding grooves 41.

[0019] The upper end of the upper mounting seat 43 is fixedly connected to the inner wall at the upper end of the opening groove 4. The bottom end of the lower mounting seat 47 is in contact with the upper end of the octagonal bolt 9.

[0020] A first telescopic rod 92 is arranged on the inner wall on the left side of the opening groove 4. A first clamping plate 91 is arranged on the right side of the first telescopic rod 92. A second clamping plate 93 is arranged on the right side of the first clamping plate 91. A second telescopic rod 94 is arranged on the right side of the second clamping plate 93. The right end of the second telescopic rod 94 is arranged on the inner wall on the right side of the opening groove 4. When the octagonal bolt 9 is placed inside the opening groove 4, the first telescopic rod 92 and the second telescopic rod 94 are stressed and telescoped, so that the first clamping block 91 and the second clamping block 93 move in opposite directions. After the nut is installed, the first telescopic rod 92 and the second telescopic rod 94 reset, and the first clamping block 91 and the second clamping block 93 move in opposite directions and closely fit the outer wall of the nut, effectively strengthening the stability of the octagonal bolt 9, thereby enhancing the stability of the connection between the piles.

[0021] The first telescopic rod 92 and the second telescopic rod 94 are arranged at the bottom of the sliding groove 41. The first clamping plate 91 and the second clamping plate 93 are located at the bottom end of the lower mounting seat 47 and have a certain gap. The first clamping plate 91 and the second clamping plate 93 are arranged on the left and right sides of the octagonal bolt 9.

[0022] Working principle: The first connecting plate 2 and the second connecting plate 3 respectively pass through the octagonal bolt 9 through the through holes 8 and the threaded holes 7 and are placed on the upper end of the first pipe pile 1. Then, align the opening groove 4 of the second pipe pile 5 with the octagonal bolt 9 on the first pipe pile 1, place the octagonal bolt 9 inside the opening groove 4. The upper end of the octagonal bolt 9 is in contact with the bottom end of the lower mounting seat 47. Push the lower mounting seat 47 upward so that the sliding block 46 moves upward along the sliding groove 41. The transmission rod 42 is stressed and moves in opposite directions. The hydraulic rod 44 contracts. The lower mounting seat 47 approaches the upper mounting seat 43. The lower mounting seat 47 moves away from the octagonal bolt 9. Install the nut. Release the lower mounting seat 47. The hydraulic rod 44 extends. The transmission rod 42 resets. The sliding block 46 drives the lower mounting seat 47 to move downward, so that the bottom end of the lower mounting seat 47 is closely attached to the upper end of the octagonal bolt 9. The lower mounting seat 47 always gives the octagonal bolt 9 a squeezing force, making the octagonal bolt 9 more stable in the opening groove 4.

[0023] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A mechanical connector for pipe piles, comprising a first pipe pile (1), characterized in that: An octagonal bolt (9) is provided at the upper part of the first pipe pile (1). A first connecting plate (2) is provided at the upper end of the first pipe pile (1). A through hole (8) is provided on the first connecting plate (2). A second connecting plate (3) is provided at the upper end of the first connecting plate (2). A threaded hole (7) is provided on the second connecting plate (3). A second pipe pile (5) is provided at the upper end of the second connecting plate (3). An opening groove (4) is provided at the bottom of the second pipe pile (5). Two sliding grooves (41) are provided inside the opening groove (4). An upper mounting seat (43) is provided between the two sliding grooves (41). A lower mounting seat (47) is provided at the bottom of the upper mounting seat (43). Sliders (46) are provided at both the left and right ends of the lower mounting seat (47). Two transmission rods (42) are provided between the upper mounting seat (43) and the lower mounting seat (47). A hydraulic rod (44) is provided between the two transmission rods (42). Push plates (45) are provided on both the left and right sides of the hydraulic rod (44). Central through holes (6) are provided inside the first pipe pile (1), the first connecting plate (2), the second connecting plate (3), and the second pipe pile (5). The bottom end of the lower mounting seat (47) is in contact with the upper end of the octagonal bolt (9).

2. The mechanical connector for pipe piles according to claim 1, wherein: The octagonal bolt (9) and the first pipe pile (1) are provided as an integral structure. The positions of the through hole (8), the threaded hole (7), and the opening groove (4) all correspond to the position of the octagonal bolt (9).

3. The mechanical connector for pipe piles according to claim 1, wherein: The sliding grooves (41) are provided at the upper parts of the left and right inner walls of the opening groove (4). The sliders (46) are provided inside the sliding grooves (41).

4. A pipe pile mechanical connector according to claim 1, characterized in that: The upper end of the upper mounting seat (43) is fixedly connected to the upper inner wall of the opening groove (4). The bottom end of the lower mounting seat (47) is in contact with the upper end of the octagonal bolt (9).

5. The pipe pile mechanical connector according to claim 1, characterized in that: A first telescopic rod (92) is provided on the left inner wall of the opening groove (4). A first clamping plate (91) is provided on the right side of the first telescopic rod (92). A second clamping plate (93) is provided on the right side of the first clamping plate (91). A second telescopic rod (94) is provided on the right side of the second clamping plate (93). The right end of the second telescopic rod (94) is provided on the right inner wall of the opening groove (4).

6. The pipe pile mechanical connector according to claim 5, characterized in that: The first telescopic rod (92) and the second telescopic rod (94) are provided at the bottom of the sliding groove (41). The first clamping plate (91) and the second clamping plate (93) are located at the bottom end of the lower mounting seat (47) and have a certain gap. The first clamping plate (91) and the second clamping plate (93) are provided on both the left and right sides of the octagonal bolt (9).

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