Precast concrete pipe pile

By setting insertion holes and notches between the outer and inner shells of precast concrete pipe piles, and using sleeves and sealing materials, the problems of demolding and connection sealing are solved, achieving efficient production and sealed connection.

CN224281239UActive Publication Date: 2026-05-26ZHEJIANG ZHENGDA PIPE PILE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG ZHENGDA PIPE PILE CO LTD
Filing Date
2025-06-30
Publication Date
2026-05-26

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Abstract

The utility model provides a precast concrete pipe pile which comprises a precast concrete pipe pile body, the precast concrete pipe pile body comprises an outer shell, an inner shell and concrete, a reinforcement cage is bound between the outer shell and the inner shell, the concrete is poured between the outer shell and the inner shell, and the reinforcement cage is poured in the concrete. Due to the overall arrangement, demolding is not needed after prefabrication is completed, so that production steps are reduced, and meanwhile the overall strength is improved; after the two prefabricated concrete pipe pile bodies are in butt joint in the later period, a cavity can be formed in the butt joint position, the cavity can be filled with fluid type sealing materials such as concrete and resin, and after the fluid type sealing materials are solidified, the connection position is fully sealed.
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Description

Technical Field

[0001] This utility model relates to the field of concrete pipe piles, and in particular to a precast concrete pipe pile. Background Technology

[0002] Precast concrete pipe piles are precast concrete components produced in factories and driven on-site. They are characterized by high strength, high efficiency, and wide applicability, and are widely used in engineering fields such as construction, transportation, and water conservancy.

[0003] However, existing precast concrete pipe piles not only require demolding after precasting, but also make it difficult to fully seal the connection when two precast concrete pipe piles are joined together later.

[0004] Therefore, it is essential to invent a precast concrete pipe pile. Utility Model Content

[0005] To solve the above-mentioned technical problems, the present invention provides a technical solution for a precast concrete pipe pile: a precast concrete pipe pile, comprising a precast concrete pipe pile body, wherein: the precast concrete pipe pile body includes an outer shell, an inner shell and concrete, a steel cage is tied between the outer shell and the inner shell, concrete is poured between the outer shell and the inner shell, and the steel cage is poured in the concrete.

[0006] A first insertion hole is provided at one end between the outer shell and the inner shell, and a second insertion hole is provided at the other end between the outer shell and the inner shell;

[0007] The outer casing has a notch one at one end near the socket one, and the notch one is connected to the socket one;

[0008] The outer casing has a notch two at one end near the second socket, and the notch two is connected to the second socket;

[0009] A sleeve is fixedly installed on one end of the inner shell near the insertion hole.

[0010] The inner surface of the outer shell is uniformly provided with a number of reinforcing ribs, which are cast in concrete.

[0011] The outer surface of the inner shell is uniformly provided with a number of T-shaped reinforcing ribs, which are cast in concrete.

[0012] The surface of the T-shaped reinforcing bar is uniformly provided with grooves, which are cast into the concrete.

[0013] One end of the sleeve extends out of the outer casing.

[0014] The inner diameter of the sleeve is the same as the diameter of the inner shell.

[0015] Compared with the prior art, the advantages of this utility model are:

[0016] The overall design of this utility model eliminates the need for demolding after prefabrication, thereby reducing production steps and improving overall strength. Later, after the two prefabricated concrete pipe piles are joined, a cavity is formed at the joint, which can be filled with a fluid sealing material, such as concrete or resin, to fully seal the connection after solidification. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the main connection structure of two precast concrete pipe piles of this utility model.

[0018] Figure 2 This is a schematic diagram of the structure at both ends of the precast concrete pipe pile of this utility model.

[0019] Figure 3 This is a partial cross-sectional structural diagram of the main body of the precast concrete pipe pile of this utility model.

[0020] Figure 4 This is a schematic diagram of the exploded structure of the main body of the precast concrete pipe pile of this utility model.

[0021] Figure 5 This is a partially enlarged structural diagram of point A of this utility model.

[0022] In the picture:

[0023] 1. Outer shell; 2. Inner shell; 21. T-shaped reinforcing rib; 22. Groove; 3. Reinforcing cage; 4. Concrete; 5. Insertion hole one; 6. Sleeve; 7. Notch one; 8. Notch two; 9. Insertion hole two; 10. Reinforcing rib. Detailed Implementation

[0024] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0025] In the description of the embodiments, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the present invention and for 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 the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of the utility model, it should be noted that unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in the present utility model based on the specific circumstances.

[0026] The present invention will be further described below with reference to the accompanying drawings:

[0027] Example

[0028] Reference Figure 1-5 A precast concrete pipe pile includes a precast concrete pipe pile body, wherein: the precast concrete pipe pile body includes an outer shell 1, an inner shell 2 and concrete 4, a steel cage 3 is tied between the outer shell 1 and the inner shell 2, and concrete 4 is poured between the outer shell 1 and the inner shell 2. The steel cage 3 is poured into the concrete 4. Through the arrangement of the outer shell 1 and the inner shell 2, it can be combined with the concrete 4 after the concrete 4 is poured. In this way, not only is the trouble of demolding avoided, but the solidified concrete 4 can also be protected to prevent the concrete 4 from being bumped during construction.

[0029] Specifically, the outer shell 1, inner shell 2, and sleeve 6 adopt existing technologies, such as metal materials and composite materials in existing technologies;

[0030] Specifically, a first insertion hole 5 is provided at one end between the outer shell 1 and the inner shell 2, and a second insertion hole 9 is provided at the other end between the outer shell 1 and the inner shell 2, so that the two precast concrete pipe pile bodies can be connected and a casting cavity can be formed between the first insertion hole 5 and the second insertion hole 9.

[0031] Specifically, the outer casing 1 has a notch 7 at one end near the socket 5, and the notch 7 is connected to the socket 5 so that the required sealing material can be poured into the socket 5 through the notch 7.

[0032] Specifically, the outer casing 1 has a notch 28 at one end near the second socket 9, and the notch 28 is connected to the second socket 9 so that the required sealing material can be poured into the second socket 9 through the notch 28;

[0033] Specifically, a sleeve 6 is fixedly installed on one end of the inner shell 2 near the insertion hole 5. The length of the sleeve 6 is less than the depth of the insertion hole 9, so that the inner shell 2 can be bonded to the sleeve 6 by sealing material (resin, concrete) to improve the sealing between them.

[0034] Specifically, a number of reinforcing ribs 10 are uniformly arranged on the inner surface of the outer shell 1. The reinforcing ribs 10 are cast into the concrete 4 so as to improve the bonding strength between the outer shell 1 and the concrete 4.

[0035] Specifically, a number of T-shaped reinforcing ribs 21 are evenly arranged on the outer surface of the inner shell 2. The T-shaped reinforcing ribs 21 are cast into the concrete 4 so as to improve the bonding strength between the inner shell 2 and the concrete 4.

[0036] Specifically, the surface of the T-shaped reinforcing bar 21 is uniformly provided with grooves 22, which are poured into the concrete 4 so as to improve the bonding strength between the T-shaped reinforcing bar 21 and the concrete 4 through the grooves 22.

[0037] Specifically, one end of the sleeve 6 extends from the outer casing 1 so that the sleeve 6 can be inserted into the second insertion hole 9 of another precast concrete pipe pile body.

[0038] Specifically, the inner diameter of the sleeve 6 is the same as the diameter of the inner shell 2, so that the sleeve 6 can be fitted onto the outside of the inner shell 2 of another precast concrete pipe pile body.

[0039] In this embodiment, when two precast concrete pipe pile bodies are joined together, one end of the inner shell 2 of one precast concrete pipe pile body is inserted into the sleeve 6 of the other precast concrete pipe pile body until the notch 7 on one precast concrete pipe pile body is joined with the notch 8 on the other precast concrete pipe pile body. At this time, a casting cavity is formed between the insertion hole 5 and the insertion hole 9. Then, liquid concrete or sealing resin and other materials are poured into the insertion hole 5 and the insertion hole 9 through the notch 7 and the insertion hole 8. After solidification, the joint of the two precast concrete pipe pile bodies can be fully sealed.

[0040] Any technical solution that achieves the above-mentioned technical effects by utilizing the technical solution described in this utility model, or by designing a similar technical solution inspired by the technical solution described in this utility model, falls within the protection scope of this utility model.

Claims

1. A precast concrete pipe pile, characterized in that: The precast concrete pipe pile body includes an outer shell (1), an inner shell (2) and concrete (4), a steel cage (3) is tied between the outer shell (1) and the inner shell (2), concrete (4) is poured between the outer shell (1) and the inner shell (2), and the steel cage (3) is poured in the concrete (4). A socket 1 (5) is provided at one end between the outer shell (1) and the inner shell (2), and a socket 2 (9) is provided at the other end between the outer shell (1) and the inner shell (2). The outer casing (1) has a notch (7) at one end near the socket (5), and the notch (7) is connected to the socket (5); The outer shell (1) has a notch (8) at one end near the second socket (9), and the notch (8) is connected to the second socket (9); A sleeve (6) is fixedly installed on one end of the inner shell (2) near the insertion hole (5).

2. The precast concrete pipe pile as described in claim 1, characterized in that: The inner surface of the outer shell (1) is uniformly provided with a number of reinforcing ribs (10), which are cast in concrete (4).

3. A precast concrete pipe pile as described in claim 1, characterized in that: The outer surface of the inner shell (2) is uniformly provided with a number of T-shaped reinforcing ribs (21), which are cast in concrete (4).

4. A precast concrete pipe pile as described in claim 3, characterized in that: The surface of the T-shaped reinforcing bar (21) is uniformly provided with grooves (22), which are poured into the concrete (4).

5. A precast concrete pipe pile as described in claim 1, characterized in that: One end of the sleeve (6) extends out of the outer shell (1).

6. A precast concrete pipe pile as described in claim 5, characterized in that: The inner diameter of the sleeve (6) is the same as the diameter of the inner shell (2).