Corrosion-resistant concrete pipe pile

Abstract

The utility model relates to the technical field of concrete pipe piles, and discloses a corrosion-resistant concrete pipe pile which comprises a reinforcement cage for concrete pouring, an end plate and a tip end, the reinforcement cage comprises a plurality of main reinforcement shafts which extend in the horizontal direction and are distributed in a circumferential mode, and main reinforcement bars which are welded to the outer walls of the circumferential sides of the main reinforcement shafts in a winding mode. Reinforcing ends obliquely and downwards extending into the sharp end are arranged at the end of the main reinforcing steel bar shaft, secondary reinforcing steel bars are wound and welded to the outer walls of the peripheral sides of the reinforcing ends, an alloy steel end is arranged at the head end of the sharp end and is conical, and welding ring grooves allowing the ends of the reinforcing ends to be embedded are formed in the peripheral side of the bottom wall of the alloy steel end. The reinforcing end which is arranged at the end of the main reinforcing bar shaft and obliquely extends downwards into the tip end is utilized, the structural strength of the tip end can be improved through the reinforcing end, the secondary reinforcing bar is wound and welded to the outer wall of the peripheral side of the reinforcing end, and at the moment, the structural strength of the tip end can be further improved through the secondary reinforcing bar.

Description

Technical Field

[0001] The utility model belongs to the technical field of concrete pipe piles, in particular to a corrosion-resistant concrete pipe pile. Background Art

[0002] Concrete pipe piles are tubular products made of concrete. They are mainly driven into the ground by pile drivers in specific geological environments to serve as the foundation of buildings.

[0003] At present, a Chinese patent with publication number CN218813669U and publication date April 7, 2023 discloses an assembled static pressure pipe pile, including a tip initial pipe pile, an additional pipe pile is arranged above the tip initial pipe pile, the upper end of the tip initial pipe pile is fixedly connected with a No. 1 metal ring, and the lower end of the additional pipe pile is fixedly connected with a No. 2 metal ring, and both sides of the middle part of the interior of the No. 1 metal ring are provided with a clamping inner groove, and the clamping inner groove is connected with the interior of the tip initial pipe pile, and both sides of the middle part of the lower end of the No. 2 metal ring are fixedly connected with a clamping bottom block, and the clamping bottom block is slidably clamped with the clamping inner groove, and side clamping grooves are penetrated through the interior of the No. 1 metal ring and the clamping bottom block, and a reinforcing cross bar is provided for the internal clamping of the side clamping groove, and an internal connecting cavity is penetrated through the interior of the clamping bottom block.

[0004] When piling, the pointed primary pipe pile with a pointed end is first inserted into the ground, and then the additional pipe pile is inserted into the ground after being connected with the pointed primary pipe pile; however, when the pointed end of the pointed primary pipe pile is inserted into the ground, the pointed end of the pointed primary pipe pile will be subjected to a large impact force. When encountering relatively hard geology, the pointed end of the pointed primary pipe pile is prone to cracking, which is not conducive to the stable insertion of the pointed primary pipe pile into the ground. Utility Model Content

[0005] The utility model aims to provide a corrosion-resistant concrete pipe pile, which is beneficial to increasing the structural strength at the tip position.

[0006] The above technical purpose of the utility model is achieved through the following technical solutions: a corrosion-resistant concrete pipe pile, including a steel cage for concrete pouring, an end plate located at one end of the steel cage, and a tip located at the other end of the steel cage, the steel cage including a plurality of main steel shafts extending in a horizontal direction and distributed in a circumference, and main steel bars wound and welded on the peripheral outer walls of the plurality of main steel shafts, the ends of the main steel shafts are provided with reinforcement ends extending obliquely downward into the tip, and secondary steel bars are wound and welded on the peripheral outer walls of the plurality of reinforcement ends, and an alloy steel end head is provided at the head end of the tip, the alloy steel end head is conical and the peripheral side of the bottom wall is provided with a welding ring groove for the ends of the plurality of reinforcement ends to be embedded.

[0007] The utility model is further configured as follows: the pitch of the secondary reinforcement bar is smaller than the pitch of the main reinforcement bar.

[0008] The utility model is further configured as follows: a reinforcing steel bar ring is sleeved on the peripheral side of one end of the plurality of main steel bar shafts away from the end plate.

[0009] The utility model is further configured as follows: the ends of the main reinforcement bars and the secondary reinforcement bars are welded to the reinforcement steel bar rings.

[0010] The utility model is further configured as follows: a cross-shaped reinforcement frame is arranged at the center of the reinforcement steel bar ring.

[0011] The utility model is further configured as follows: an extension rod extending toward one side of the alloy steel end head is arranged at the center of the reinforcement frame, a threaded end is arranged at one end of the extension rod away from the reinforcement frame, and an internal thread groove for threaded connection of the threaded end is opened on the alloy steel end head.

[0012] The utility model is further configured as follows: a corrosion-resistant paint layer is coated on the peripheral outer wall of the tip.

[0013] In summary, the utility model has the following beneficial effects:

[0014] 1. The end of the main steel bar shaft is provided with a reinforcement end that extends downwardly and obliquely to the tip, and the reinforcement end can increase the structural strength of the tip, wherein the secondary steel bar is wound and welded on the outer wall of the reinforcement end, and the secondary steel bar can be used to further increase the structural strength of the tip; at the same time, the alloy steel end head provided at the head end of the tip is used, and since the alloy steel end head has high hardness and strength, it can be conducive to the tip to stably penetrate into the soil layer, and the alloy steel end head uses a welding ring groove for the end of multiple reinforcement ends to be embedded and welded, which can be conducive to the stable connection of the alloy steel end head at the tip position; finally, the purpose of increasing the structural strength at the tip position can be achieved;

[0015] 2. The pitch of the secondary reinforcement bar is smaller than that of the main reinforcement bar. At this time, the secondary reinforcement bar can be tightly wrapped and welded on the outer wall of the reinforcement end, which is beneficial to further increase the structural strength at the tip;

[0016] 3. Use a plurality of reinforcing steel rings set around the end of the main steel bar axis away from the end plate, and the reinforcing steel rings can enhance the structural strength of the end of the main steel bar axis away from the end plate;

[0017] 4. The ends of the main steel bars and the secondary steel bars are welded to the reinforcing steel rings. At this time, the ends of the main steel bars and the secondary steel bars can be constrained, which is conducive to the stable connection of the main steel bars and the secondary steel bars;

[0018] 5. A cross-shaped reinforcement frame is arranged at the center of the reinforcement steel ring, and the reinforcement frame can enhance the structural strength of the reinforcement steel ring, thereby further enhancing the structural strength of the main steel bar axis away from the end plate;

[0019] 6. When the welding ring groove of the alloy steel end is embedded in the end of the reinforcement end, the internal thread groove on the alloy steel end is used for threaded connection with the threaded end on the extension rod. At this time, the position of the alloy steel end and the main steel bar axis can be positioned, which is conducive to the subsequent welding work of the reinforcement end in the welding ring groove.

[0020] 7. The corrosion-resistant paint layer coated on the outer wall of the peripheral side of the tip can play a corrosion-resistant role, which is beneficial to protect the alloy steel end and prevent the alloy steel end from being corroded. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 This is a schematic diagram of the structure of the steel cage of the utility model after pouring concrete;

[0023] Figure 2 It is a schematic diagram of the connection relationship between the steel cage, the end plate, the reinforcement end and the alloy steel end head in the utility model;

[0024] Figure 3 It is an exploded diagram of the connection relationship between the steel cage, the reinforcement end, and the alloy steel end reinforcement steel rings in the utility model.

[0025] In the figure, 1, steel cage; 11, main steel shaft; 111, reinforcement end; 12, main steel bar; 2, end plate; 3, tip; 4, secondary steel bar; 5, alloy steel end; 51, welding ring groove; 52, internal thread groove; 6, reinforcement steel ring; 61, reinforcement frame; 62, extension rod; 621, threaded end. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] A corrosion-resistant concrete pipe pile, referring to Figure 1 , Figure 2The corrosion-resistant concrete pipe pile includes a steel cage 1, an end plate 2, and a tip 3, wherein the concrete pipe pile can be formed after concrete is poured on the steel cage 1, and the steel cage 1 includes a plurality of main steel shafts 11 extending in a horizontal direction and distributed in a circumference, and main steel bars 12 wound and welded on the peripheral outer walls of the plurality of main steel shafts 11, and the end plate 2 is bolted to one end of the steel cage 1, and the tip 3 is located at the end of the steel cage 1 away from the end plate 2, and the peripheral outer wall of the tip 3 is coated with a corrosion-resistant paint layer.

[0028] Reference Figure 2 , Figure 3 The end of the main steel bar shaft 11 is provided with a reinforcement end 111 extending obliquely downward to the tip 3, and secondary steel bars 4 are wound and welded on the peripheral outer walls of the multiple reinforcement ends 111, and the pitch of the secondary steel bars 4 is smaller than the pitch of the main steel bars 12, wherein an alloy steel end head 5 is provided at the head end of the tip 3, and the alloy steel end head 5 is conical and a welding annular groove 51 is opened on the peripheral side of the bottom wall, and the welding annular groove 51 can be used for the ends of the multiple reinforcement ends 111 to be embedded and then welded.

[0029] Reference Figure 2 , Figure 3 A reinforcing steel bar ring 6 is sleeved on the circumferential side of one end of the multiple main steel bar shafts 11 away from the end plate 2, and the reinforcing steel bar ring 6 is welded and fixed to the outer wall of the multiple main steel bar shafts 11, wherein the ends of the main steel bar 12 and the secondary steel bar 4 are welded to the reinforcing steel bar ring 6, and a cross-shaped reinforcement frame 61 is welded at the center of the reinforcing steel bar ring 6; at the same time, an extension rod 62 extending toward one side of the alloy steel end head 5 is welded at the center of the reinforcement frame 61, and a threaded end 621 is integrally provided at the end of the extension rod 62 away from the reinforcement frame 61, wherein the alloy steel end head 5 is provided with an internal thread groove 52 for threaded connection of the threaded end 621.

[0030] Principle: By utilizing the end of the main steel bar shaft 11 to set a reinforcement end 111 that extends downwardly and obliquely to the tip 3, the reinforcement end 111 can increase the structural strength of the tip 3, wherein the secondary steel bar 4 is then wound and welded on the outer wall around the reinforcement end 111, and the secondary steel bar 4 can be used to further increase the structural strength of the tip 3; at the same time, the alloy steel end head 5 provided at the head end of the tip 3 is utilized. Since the alloy steel end head 5 has higher hardness and strength, it can be beneficial for the tip 3 to penetrate stably into the soil layer, and the alloy steel end head 5 utilizes a welding ring groove 51 for the ends of multiple reinforcement ends 111 to be embedded and welded, which can be beneficial for the alloy steel end head 5 to be stably connected at the tip 3; ultimately, the purpose of increasing the structural strength at the tip 3 can be achieved.

Claims

1. A corrosion-resistant concrete pipe pile, comprising a steel cage (1) for pouring concrete, an end plate (2) located at one end of the steel cage (1), and a tip (3) located at the other end of the steel cage (1), characterized in that: The steel cage (1) comprises a plurality of main steel shafts (11) extending in a horizontal direction and distributed in a circumferential manner, and main steel bars (12) wound and welded on the peripheral outer walls of the plurality of main steel shafts (11); the ends of the main steel shafts (11) are provided with reinforcement ends (111) extending obliquely downward to the inside of a tip (3); secondary steel bars (4) are wound and welded on the peripheral outer walls of the plurality of reinforcement ends (111); an alloy steel end cap (5) is provided at the head end of the tip (3); the alloy steel end cap (5) is in a conical shape and a welding annular groove (51) is provided on the peripheral side of the bottom wall for the ends of the plurality of reinforcement ends (111) to be embedded.

2. The corrosion-resistant concrete pipe pile according to claim 1, characterized in that: The pitch of the secondary reinforcing bars (4) is smaller than the pitch of the primary reinforcing bars (12).

3. The corrosion-resistant concrete pipe pile according to claim 1, characterized in that: A reinforcing steel bar ring (6) is sleeved on the peripheral side of the plurality of main steel bar shafts (11) away from one end of the end plate (2).

4. The corrosion-resistant concrete pipe pile according to claim 3, characterized in that: The ends of the main steel bar (12) and the secondary steel bar (4) are welded to the reinforcing steel bar ring (6).

5. The corrosion-resistant concrete pipe pile according to claim 3, characterized in that: A cross-shaped reinforcement frame (61) is arranged at the center of the reinforcement steel bar ring (6).

6. The corrosion-resistant concrete pipe pile according to claim 5, characterized in that: An extension rod (62) extending toward one side of the alloy steel end head (5) is arranged at the center of the reinforcement frame (61), a threaded end (621) is arranged at one end of the extension rod (62) away from the reinforcement frame (61), and an internal thread groove (52) for threaded connection of the threaded end (621) is provided on the alloy steel end head (5).

7. The corrosion-resistant concrete pipe pile according to claim 1, characterized in that: The outer wall of the peripheral side of the tip (3) is coated with a corrosion-resistant paint layer.

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