Anti-falling pre-tightening type combined concrete pile

By introducing a detachable connection structure with built-in sleeves and side fixing plates into prestressed concrete soil piles, the problems of low construction efficiency and insufficient pull-out resistance in the existing technology are solved, and efficient and stable soil pile connection is achieved.

CN224119605UActive Publication Date: 2026-04-14SUQIAN HUAMEI NEW MATERIALS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SUQIAN HUAMEI NEW MATERIALS CO LTD
Filing Date
2025-05-16
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

Existing prestressed concrete soil piles suffer from problems such as low construction efficiency, quality being greatly affected by human factors, environmental pollution, complex structure, high installation accuracy requirements, and insufficient pull-out resistance.

Method used

The structure adopts a pre-tightened composite concrete pile with anti-detachment design. By setting an internal sleeve and side fixing plate in the soil pile, a detachable connection is achieved by using pre-embedded reinforcing steel bars and connecting bolts. Combined with shock-absorbing pad rings, the connection stability and pull-out resistance are improved.

Benefits of technology

It achieves efficient fixing and stable connection of concrete-soil piles, improves construction efficiency, reduces environmental pollution, enhances pull-out resistance, and ensures the portability and stability of the connection.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of constructional engineering, in particular to an anti-falling pre-tightening combined concrete pile which comprises a soil pile body and side clamping blocks, a hollow groove is formed in the center of the middle end of the soil pile body, pre-embedded reinforcing steel bars are horizontally arranged at the two ends of the soil pile body, and side fixing plates are arranged on the two sides of an end opening of the soil pile body. A built-in sleeve is arranged on the inner side of the middle of the side fixing plate, the built-in sleeve extends into hollow grooves in the two sides of the soil pile in an embedded mode, a sleeve groove is formed in the middle of the built-in sleeve, and side through holes are formed in the outer edge of the built-in sleeve in a penetrating mode; the problems that in the prior art, when an existing soil pile is embedded, connection and assembly need to be conducted according to building requirements, most concrete soil piles are connected in a welding or cementing mode, the construction efficiency is low, the quality is greatly influenced by human factors, and the environment is polluted are solved. An existing mechanical connection technology has the defects of being complex in structure, high in installation precision requirement, insufficient in anti-drawing performance and the like.
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Description

Technical Field

[0001] This utility model relates to the field of power engineering technology, specifically to an anti-fall-off pre-tightened composite concrete pile. Background Technology

[0002] Prestressed concrete soil piles refer to prestressed concrete piles with a circular cross-section formed using centrifugal and prestressing processes. They are prefabricated in a precast component processing plant, cured to the design strength, transported to the construction site, driven into the soil using a pile driver, and then the foundation beam (slab) is poured on top of the pile.

[0003] When pre-embedding existing soil piles, they need to be connected and assembled according to building requirements. Concrete soil piles are mostly connected by welding or adhesive bonding, which has problems such as low construction efficiency, quality being greatly affected by human factors, and environmental pollution. Existing mechanical connection technology has defects such as complex structure, high installation accuracy requirements, and insufficient pull-out resistance.

[0004] Therefore, in view of this, we have studied and improved the existing structure and its shortcomings, and proposed a pre-tightened composite concrete pile with anti-fall-off properties, in order to achieve a more practical value. Utility Model Content

[0005] The purpose of this invention is to provide an anti-fall-off pre-tightened composite concrete pile to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a pre-tightened composite concrete pile with anti-fall-off properties, comprising a soil pile and side clamping blocks. A hollow groove is provided at the center of the middle end of the soil pile, and pre-embedded reinforcing bars are horizontally arranged at both ends of the soil pile. Side fixing plates are provided on both sides of the ends of the soil pile, and an inner sleeve is provided on the inner side of the middle part of the side fixing plate. The inner sleeve is embedded in the hollow grooves on both sides of the soil pile. A sleeve groove is opened in the middle of the inner sleeve. Side through holes are arranged along the outer edge of the inner sleeve. Side clamping blocks are engaged on the outer side of the side fixing plates, and an inner clamping groove is opened on the inner side of the side clamping blocks. Through holes are arranged along the outer edge of the side clamping blocks. The through holes and the side through holes are vertically matched, and connecting bolts are provided in the through holes. A shock-absorbing pad ring is installed on the outer surface of the side fixing plates.

[0007] Furthermore, the side clamping block is generally arc-shaped, and an inner slot is provided on its inner side, which is arc-shaped.

[0008] Furthermore, the side clamping block is matched with the dimensions of the two sets of side fixing plates through the inner groove, and the inner side of the two sets of side fixing plates clamps the shock-absorbing pad ring.

[0009] Furthermore, the side clamping block and the two sets of side fixing plates form a detachable structure through connecting bolts.

[0010] Furthermore, the built-in sleeve and the pre-embedded reinforcing steel bar in the middle form a through-type fixing structure.

[0011] Furthermore, the soil pile is fixedly connected by an internal sleeve and a side fixing plate.

[0012] This utility model provides a pre-tightened composite concrete pile with anti-detachment properties, which has the following advantages:

[0013] 1. In this utility model, when the concrete soil pile is prefabricated, the side fixing plate and the inner sleeve are fixed in the soil pile mold, and the pre-embedded reinforcing steel bars arranged on both sides are inserted into the inner sleeve and fixed together in the formed concrete soil pile, so as to ensure the connection between the soil pile and the side fixing plate.

[0014] By utilizing the symmetrically arranged side through holes on the side fixing plates, the side clamping blocks are engaged with the outer surfaces of the upper and lower sets of side fixing plates through the inner slots to clamp the side fixing plates. With the help of connecting bolts, the side clamping blocks and the two sets of side fixing plates are installed and fixed, thereby achieving efficient fixing of concrete soil piles and ensuring portability and stability during the fixing and installation process.

[0015] The precast soil piles have hollow grooves inside, into which concrete grout can be injected to form a complete concrete column after the hollow grooves are connected, thus ensuring the stability of the entire soil pile. Shock-absorbing pads are installed at the joints of the soil piles to better prevent leakage, making the entire concrete soil pile more complete and stable. Attached Figure Description

[0016] The disclosure of this utility model will become more readily understood with reference to the accompanying drawings. It will be readily understood by those skilled in the art that these drawings are merely illustrative of the technical solutions of this utility model and are not intended to limit the scope of protection of this utility model. In the drawings:

[0017] Figure 1 This is a partial structural diagram of the connection position of a pre-tightened composite concrete pile with anti-detachment according to the present invention;

[0018] Figure 2 This is a top view of the side fixing plate structure of a pre-tightened composite concrete pile with anti-fall-off design according to this utility model.

[0019] Figure 3 This is a cross-sectional view of the side fixing plate of a pre-tightened composite concrete pile with anti-fall-off mechanism according to this utility model.

[0020] In the diagram: 1. Soil pile; 2. Hollow groove; 3. Embedded reinforcing steel bar; 4. Side fixing plate; 401. Internal sleeve; 402. Sleeve groove; 403. Side through hole; 5. Connecting bolt; 6. Side clamping block; 601. Inner groove; 602. Through hole; 7. Vibration damping pad ring. Detailed Implementation

[0021] 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.

[0022] Please see Figure 1-3 This utility model provides a technical solution: a pre-tightened composite concrete pile with anti-fall-off properties, comprising a soil pile 1 and side clamping blocks 6. A hollow groove 2 is provided at the center of the middle end of the soil pile 1, and pre-embedded reinforcing steel bars 3 are horizontally arranged at both ends of the soil pile 1. Side fixing plates 4 are provided on both sides of the ends of the soil pile 1, and an inner sleeve 401 is provided on the inner side of the middle of the side fixing plate 4. The inner sleeve 401 is embedded in the hollow grooves 2 extending to both sides of the soil pile 1. A sleeve groove 402 is opened in the middle of the inner sleeve 401, and side through holes 403 are arranged along the outer edge of the inner sleeve 401. The side clamping blocks 6 are engaged on the outer side of the side fixing plates 4, and an inner groove 601 is opened on the inner side of the side clamping blocks 6. Through holes are arranged along the outer edge of the side clamping blocks 6. 602, the through hole 602 and the side through hole 403 are positioned vertically to match each other, and the through hole 602 is provided with a connecting bolt 5. The outer surface of the side fixing plate 4 is equipped with a shock-absorbing pad ring 7. The side clamping block 6 is generally arc-shaped, and an inner groove 601 is opened on its inner side, and the inner groove 601 is arc-shaped. The side clamping block 6 and the two sets of side fixing plates 4 are matched in size through the inner groove 601, and the shock-absorbing pad ring 7 is clamped on the inner side of the two sets of side fixing plates 4. The side clamping block 6 and the two sets of side fixing plates 4 form a detachable structure through the connecting bolt 5. The built-in sleeve 401 and the central pre-embedded reinforcing steel bar 3 form a through-type fixing structure. The soil pile 1 is fixedly connected through the built-in sleeve 401 and the side fixing plate 4.

[0023] When the concrete soil pile is prefabricated, the side fixing plate 4 and the inner sleeve 401 are fixed in the soil pile mold, and the pre-embedded reinforcing steel bars 3 arranged on both sides are inserted into the inner sleeve 401 and fixed together in the formed concrete soil pile to ensure the connection between the soil pile 1 and the side fixing plate 4.

[0024] By utilizing the symmetrically arranged side through holes 403 on the side fixing plate 4, the side clamping block 6 is engaged with the outer surface of the upper and lower sets of side fixing plates 4 through the inner slot 601 to clamp the side fixing plate 4. With the help of the connecting bolts 5, the side clamping block 6 and the two sets of side fixing plates 4 are installed and fixed, thereby achieving efficient fixing of concrete soil piles and ensuring portability and stability during fixing and installation.

[0025] The prefabricated soil pile 1 has a hollow groove 2 inside, into which concrete grout can be injected to form a complete concrete column after the hollow groove 2 is connected, thereby ensuring the stability of the entire soil pile 1. The connection gap of the soil pile 1 is provided with a shock-absorbing pad ring 7 to better prevent leakage and make the entire concrete soil pile more complete and stable.

[0026] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions that can be conceived by those skilled in the art within the technical scope disclosed in this utility model without creative effort should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope defined in the claims.

Claims

1. A type of pre-tightened composite concrete pile with anti-fall-off mechanism, comprising a soil pile (1) and side clamps (6), characterized in that: A hollow groove (2) is provided at the center of the middle end of the soil pile (1), and pre-embedded reinforcing steel bars (3) are horizontally provided at both ends of the soil pile (1). Side fixing plates (4) are provided on both sides of the ends of the soil pile (1), and an inner sleeve (401) is provided on the inner side of the middle part of the side fixing plate (4). The inner sleeve (401) is embedded in the hollow groove (2) on both sides of the soil pile (1). A sleeve groove (402) is opened in the middle of the inner sleeve (401). The outer edge of the side fixing plate (4) is provided with side through holes (403), the outer side of the side fixing plate (4) is engaged with a side clamping block (6), and the inner side of the side clamping block (6) is provided with an inner groove (601), and the outer edge of the side clamping block (6) is provided with through holes (602). The through holes (602) and the side through holes (403) are matched in the upper and lower positions, and a connecting bolt (5) is provided in the through hole (602). A shock-absorbing pad ring (7) is installed on the outer surface of the side fixing plate (4).

2. The anti-detachment pre-tightened composite concrete pile according to claim 1, characterized in that, The side clamp (6) is generally arc-shaped, and an inner slot (601) is provided on its inner side, and the inner slot (601) is arc-shaped.

3. The anti-detachment pre-tightened composite concrete pile according to claim 1, characterized in that, The side clamping block (6) is matched with the inner groove (601) and the two sets of side fixing plates (4) in size, and the inner side of the two sets of side fixing plates (4) clamps the shock-absorbing pad ring (7).

4. The anti-detachment pre-tightened composite concrete pile according to claim 1, characterized in that, The side clamp (6) and the two sets of side fixing plates (4) are connected by connecting bolts (5) to form a detachable structure.

5. The anti-detachment pre-tightened composite concrete pile according to claim 1, characterized in that, The built-in sleeve (401) and the pre-embedded reinforcing steel bar (3) in the middle form a through-type fixed structure.

6. The anti-detachment pre-tightened composite concrete pile according to claim 1, characterized in that, The soil pile (1) is fixedly connected to the inner sleeve (401) and the side fixing plate (4).