Cast-in-place pile head structure and cast-in-place pile

Abstract

The utility model relates to a cast-in-place pile head structure which comprises a fixing ring piece and four guiding pieces, and the inner side of the fixing ring piece is fixedly connected with a guiding four-way square pipe; the four guiding pieces are connected to the outer side wall of the fixing ring piece at equal intervals. The guide part comprises a sliding square pipe and a guide pipe, one end of the sliding square pipe is connected with the guide pipe, and the other end of the sliding square pipe penetrates through the fixing ring part and is connected into the guide four-way square pipe in a sliding mode. The cast-in-place pile comprises the cast-in-place pile head structure and further comprises a reinforcement cage and a concrete layer. The lower end of the reinforcement cage is connected with the fixing ring piece; and the concrete layer covers the outer side of the reinforcement cage. According to the cast-in-place pile head structure and the cast-in-place pile, the defects in the prior art are overcome, and a reinforcement cage can be better placed in a hole.

Description

Technical Field

[0001] The utility model relates to a cast-in-place pile head structure and a cast-in-place pile. Background Art

[0002] A cast-in-place pile is a pile made by drilling a hole in place and pouring concrete or reinforced concrete.

[0003] The application of cast-in-place piles in the construction field is very common. In the construction process of many buildings, cast-in-place piles can be seen. When constructing cast-in-place piles, holes are usually dug at the place where the cast-in-place piles are needed, steel cages are placed in the holes, and concrete is poured into the holes. After the concrete solidifies, the production of cast-in-place piles is completed.

[0004] There are still some shortcomings in the production of traditional cast-in-place piles. One of them is that when the steel cage is placed into the hole, if the operation is improper or the operation experience is insufficient, the bottom of the steel cage will easily poke the hole wall, making the lowering process of the steel cage more inconvenient; therefore, a cast-in-place pile head structure and cast-in-place pile are proposed to address the above problems. Utility Model Content

[0005] The purpose of the utility model is to overcome the existing defects and provide a cast-in-place pile head structure and a cast-in-place pile, so that the steel cage can be better lowered into the hole.

[0006] The technical solution to achieve the above object is: a cast-in-place pile head structure, comprising a fixed ring and four guide members, wherein the inner side of the fixed ring is fixedly connected to the guide four-way square tube; the four guide members are equidistantly connected to the outer wall of the fixed ring;

[0007] The guide member includes a sliding square tube and a guide tube. One end of the sliding square tube is connected to the guide tube, and the other end passes through the fixed ring member and is slidably connected to the guide four-way square tube.

[0008] Preferably, the lower end surface of the guide four-way square tube is connected to the reinforced threaded tube, the inner thread of the reinforced threaded tube is connected to the locking bolt, and the upper end of the locking bolt passes through the interior of the guide four-way square tube and abuts against the side wall of the sliding square tube.

[0009] Preferably, the lower ends of the four guide tubes are bent toward one side of the central axis of the fixing ring.

[0010] Preferably, the bending portion of the guide tube is configured to be arc-shaped.

[0011] Preferably, the lower end surface of the guide tube is configured as an arc surface.

[0012] A bored pile comprises the bored pile head structure, and also comprises a steel cage and a concrete layer; the lower end of the steel cage is connected to the fixing ring; and the concrete layer covers the outer side of the steel cage.

[0013] The beneficial effects of the present invention are as follows: the pile head structure of the cast-in-place pile is fixedly connected to the guide four-way square tube on the inner side of the fixed ring; four guide members are equidistantly connected to the outer wall of the fixed ring; the guide member includes a sliding square tube and a guide tube, one end of the sliding square tube is connected to the guide tube, and the other end passes through the fixed ring and is slidably connected in the guide four-way square tube, and the guide tube near the bottom end is bent toward one side of the central axis of the fixed ring, the bent section of the guide tube is set to an arc shape, and the bottom end of the guide tube is set to a circular arc surface. This setting enables the guide tube to better slide along the wall of the hole with the help of the arc shape of the bent section of the guide tube and the circular arc surface of the bottom of the guide tube when it contacts the hole wall, thereby guiding the fixed ring and the steel cage fixedly connected to the fixed ring to be better lowered into the hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the connection between the cast-in-place pile head structure and the steel cage of the utility model;

[0015] Figure 2 yes Figure 1 Enlarged view of point A in the middle;

[0016] Figure 3 It is a cross-sectional view of the cast-in-place pile head structure and the steel cage of the utility model;

[0017] Figure 4 yes Figure 3 Enlarged view of point B in the middle;

[0018] Figure 5 It is a schematic diagram of the utility model cast-in-place pile.

[0019] In the figure: 1. Fixed ring; 2. Guide member; 3. Guide tube; 4. Guide square tube; 5. Sliding square tube; 6. Locking bolt; 7. Reinforced threaded tube; 8. Steel cage; 9. Concrete layer. DETAILED DESCRIPTION

[0020] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. In the description of the present invention, it should be noted that the terms "center," "up," "down," "left," "right," "vertical," "horizontal," "inside," "outside," and the like, indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are intended only to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be construed as limiting the present invention. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] The present invention will be further described below with reference to the accompanying drawings.

[0022] like Figure 1-4 As shown, a cast-in-place pile head structure includes a fixed ring 1 and four guide members 2. The inner side of the fixed ring 1 is fixedly connected to the guide four-way square tube 4; the four guide members 2 are equidistantly connected to the outer wall of the fixed ring 1; the guide member 2 includes a sliding square tube 5 and a guide tube 3. One end of the sliding square tube 5 is connected to the guide tube 3, and the other end passes through the fixed ring 1 and is slidably connected to the guide four-way square tube 4.

[0023] Specifically, the lower end surface of the guide four-way square tube 4 is connected to the reinforcing threaded tube 7, the inner thread of the reinforcing threaded tube 7 is connected to the locking bolt 6, and the upper end of the locking bolt 6 passes through the inside of the guide four-way square tube 4 and abuts against the side wall of the sliding square tube 5.

[0024] Specifically, the lower ends of the four guide tubes 3 are bent toward one side of the central axis of the fixing ring 1. The bent portion of the guide tubes 3 is configured to be arc-shaped. The lower end surface of the guide tubes 3 is configured to be an arc surface.

[0025] Specifically, the distance between the guide member 2 and the central axis of the fixed ring member 1 is adjustable. This setting ensures that the position of the guide member 2 is adjustable, so that the user can adjust the position of the guide member 2 according to the size of the hole, ensuring that the guide member 2 can better fit and contact the wall of the hole, so that the guide member 2 can achieve stable guidance of the steel cage 8 in the process of passing into the hole. The guide member 2 on the side away from the central axis of the fixed ring member 1 is fixedly connected with a vertically arranged guide tube 3 by welding. The guide tube 3 near the bottom end is bent toward one side of the central axis of the fixed ring member 1. The bent section of the guide tube 3 is set to an arc shape, and the bottom end of the guide tube 3 is set to a circular arc surface. This setting enables the guide tube 3 to better slide along the wall of the hole with the help of the arc shape of the bent section of the guide tube 3 and the circular arc surface at the bottom of the guide tube 3 when it contacts the wall of the hole, thereby guiding the fixed ring member 1 and the steel cage 8 fixedly connected to the fixed ring member 1 to be better lowered into the hole.

[0026] Specifically, the inner side of the fixed ring 1 is fixedly connected to the guide four-way square tube 4 by welding, and the guide tube 3 is fixedly connected to the sliding square tube 5 which is slidably connected to the guide four-way square tube 4 by welding. The fixed ring 1 is provided with a plurality of square holes which are interconnected with the guide four-way square tube 4. The sliding square tube 5 penetrates into the guide four-way square tube 4 through the square holes and is slidably connected to the guide four-way square tube 4. Under the joint action of the sliding square tube 5 and the guide four-way square tube 4, the sliding square tube 5 and the guide four-way square tube 4 can slide stably. The sliding square tube 5 is in the guide four-way square tube. When sliding in the square tube 4, it can also be restricted in rotation by the guided four-way square tube 4, ensuring that the sliding square tube 5 can stably drive the guide tube 3 to slide and adjust the position of the guide tube 3, so that the guide tube 3 can stably realize its guiding function. A locking bolt 6 for tightening the sliding square tube 5 is threadedly connected to the guide four-way square tube 4. Under the action of the friction between the locking bolt 6 and the sliding square tube 5, the sliding of the sliding square tube 5 is restricted, thereby achieving a stable restriction on the position of the guide tube 3, ensuring that the guide tube 3 can stably realize its guiding function.

[0027] Specifically, the bottom end of the guide four-way square tube 4 is fixedly connected with a plurality of reinforced threaded tubes 7 interconnected with the guide four-way square tube 4 by welding, and the locking bolt 6 passes through the reinforced threaded tube 7 into the guide four-way square tube 4. With the help of the reinforced threaded tube 7, the connection area between the locking bolt 6 and the guide four-way square tube 4 can be increased, thereby ensuring the connection strength and connection stability between the locking bolt 6 and the guide four-way square tube 4, ensuring that the state of the locking bolt 6 pressing against the guide four-way square tube 4 is more stable, and ensuring that the effect of the locking bolt 6 in restricting the slippage of the guide four-way square tube 4 is more stable.

[0028] like Figure 5 As shown, a cast-in-place pile includes a cast-in-place pile head structure, a steel cage 8 and a concrete layer 9; the lower end of the steel cage 8 is connected to a fixed ring 1; and the concrete layer 9 is coated on the outside of the steel cage 8.

[0029] Specifically, the bored pile includes a steel cage 8 for fixing to the fixing ring 1 and a concrete layer 9 covering the outside of the steel cage 8. The structural strength of the steel cage 8 is used to ensure that the bored pile has good and stable structural strength. The overall structure of the bored pile is formed by the joint action of the concrete layer 9 and the steel cage 8, ensuring that the function of the bored pile is more stable. Under the guidance of the bored pile head structure, the process of the steel cage 8 penetrating into the hole is more convenient and stable.

[0030] Specifically, the fixing ring 1 is fixed to the steel cage 8 by welding, ensuring that the fixing ring 1 is close to the bottom side of the steel cage 8, and the sliding square tube 5 is inserted into the guide four-way square tube 4 to ensure that the bent section of the guide tube 3 is located on the side away from the steel cage 8. The position of the guide tube 3 is adjusted according to the diameter of the hole to ensure that the guide tube 3 can be against the wall of the hole during the process of placing the steel cage 8 into the hole. The sliding square tube 5 is tightened with the help of the locking bolt 6 to achieve stable positioning of the sliding square tube 5 and the guide tube 3. The steel cage 8 and the cast-in-place pile head structure are placed into the hole together, and concrete is poured into the hole. After the concrete solidifies, the production of the cast-in-place pile is completed.

[0031] The pile head structure of the present bored pile is achieved by fixing a guide four-way square tube 4 on the inner side of a fixed ring 1; four guide members 2 are equidistantly connected to the outer wall of the fixed ring 1; the guide member 2 comprises a sliding square tube 5 and a guide tube 3, one end of the sliding square tube 5 is connected to the guide tube 3, and the other end passes through the fixed ring 1 and is slidably connected in the guide four-way square tube 4, and the guide tube 3 near the bottom end is bent toward one side of the central axis of the fixed ring, the bent section of the guide tube is set to an arc, and the bottom end of the guide tube is set to a circular arc surface, which allows the guide tube to better slide along the wall of the hole with the help of the arc of the bent section of the guide tube and the circular arc surface of the bottom of the guide tube when it contacts the hole wall, thereby guiding the fixed ring and the steel cage fixedly connected to the fixed ring to be better lowered into the hole.

[0032] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A cast-in-place pile head structure, characterized in that: It comprises a fixed ring (1) and four guide members (2), wherein the inner side of the fixed ring (1) is fixedly connected to a guide four-way square tube (4); the four guide members (2) are connected to the outer side wall of the fixed ring (1) at equal distances; The guide member (2) comprises a sliding square tube (5) and a guide tube (3); one end of the sliding square tube (5) is connected to the guide tube (3), and the other end passes through the fixed ring member (1) and is slidably connected to the guide four-way square tube (4).

2. The cast-in-place pile head structure according to claim 1, characterized in that: The lower end surface of the guide four-way square tube (4) is connected to a reinforcing threaded tube (7), the inner thread of the reinforcing threaded tube (7) is connected to a locking bolt (6), and the upper end of the locking bolt (6) passes through the interior of the guide four-way square tube (4) and abuts against the side wall of the sliding square tube (5).

3. The cast-in-place pile head structure according to claim 1, characterized in that: The lower ends of the four guide tubes (3) are bent toward one side of the central axis of the fixing ring (1).

4. The cast-in-place pile head structure according to claim 3, characterized in that: The bending portion of the guide tube (3) is arranged in an arc shape.

5. The cast-in-place pile head structure according to claim 1, characterized in that: The lower end surface of the guide tube (3) is configured as an arc surface.

6. A bored pile comprising the bored pile head structure according to claims 1 to 5, characterized in that: It also includes a steel cage (8) and a concrete layer (9); the lower end of the steel cage (8) is connected to the fixing ring (1); and the concrete layer (9) is wrapped around the outside of the steel cage (8).

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