Pile foundation post-grouting construction device

Abstract

The pile foundation post-grouting construction device comprises a pile foundation formwork, concrete is poured into the pile foundation formwork, and a tamping structure is inserted into the concrete; the tamping structure comprises a pressing plate, a vertical rod, a connecting pipe, a circular plate, a circular ring and a crane rope; the vertical rod is installed on the pressing plate, the vertical rod is inserted into concrete, the connecting pipe is installed on the pressing plate, and the circular plate is installed on the connecting pipe. In the construction process of a pile foundation, a pile foundation formwork is fixed, concrete is poured into the pile foundation formwork through an external pouring machine, after concrete pouring is completed, an external crane enables a circular plate on a circular ring to drive a vertical rod on a pressing plate on a connecting pipe to stretch into the concrete and move up and down through a crane rope, meanwhile, a vibration motor enables the vertical rod to vibrate in the concrete, and the concrete is poured into the pile foundation formwork. And meanwhile, the surface of the concrete is beaten up and down through the pressing plate, the concrete poured in the pile foundation formwork is tamped, and a pile foundation is more stable after being formed.

Description

Technical Field

[0001] This patent relates to the technical field of pile foundations, and specifically to a post-grouting construction device for pile foundations. Background Art

[0002] A deep foundation composed of a pile and a pile cap (referred to as a cap for short) connecting the top of the pile (see the figure) or a single-pile foundation connecting a column and a pile foundation is simply called a pile foundation. If the entire pile body is buried in the soil and the bottom surface of the cap contacts the soil mass, it is called a low-cap pile foundation; if the upper part of the pile is exposed above the ground and the bottom of the cap is above the ground, it is called a high-cap pile foundation. Building pile foundations are usually low-cap pile foundations. In high-rise buildings, pile foundations are widely used. However, after the current pile foundations are built, during the grouting construction process, since there will be air bubbles in the slurry poured into the pile foundations and the slurry is not solid, the problem of unstable pile foundations is caused. Content of the Utility Model

[0003] The purpose of this patent is to provide a post-grouting construction device for pile foundations.

[0004] To achieve the above purpose, this patent provides the following technical solution: A post-grouting construction device for pile foundations, including a pile foundation formwork, in which concrete is poured, and a ramming structure is inserted into the concrete;

[0005] The ramming structure includes a pressing plate, a vertical rod, a connecting pipe, a circular plate, a circular ring, and a crane rope;

[0006] The vertical rod is installed on the pressing plate, the vertical rod is inserted into the concrete, the connecting pipe is installed on the pressing plate, the circular plate is installed on the connecting pipe, the circular ring is installed on the circular plate, and the crane rope is tied inside the circular ring;

[0007] An inspection opening is provided on the connecting pipe, and a vibration motor is installed in the inspection opening.

[0008] Preferably, the outer surface of the connecting pipe is processed with external threads, a threaded hole is provided on the pressing plate, the threaded hole on the pressing plate is sleeved on the external threads outside the connecting pipe, and the vertical rod is installed on the connecting pipe.

[0009] Preferably, a sealing structure is installed in the inspection opening, and the sealing structure includes a revolving door, a door latch, and an L-shaped block;

[0010] The revolving door is rotatably installed in the inspection opening through a hinge, the door latch is rotatably installed on the revolving door through a pin shaft, the L-shaped block is installed on the connecting pipe, and the L-shaped block is placed near the inspection opening.

[0011] Preferably, a rubber frame is installed outside the revolving door.

[0012] Preferably, the circular plate and the connecting pipe are connected through a connecting structure, and the connecting structure includes a bolt and a threaded groove;

[0013] The bolt is installed on the circular plate, the threaded groove is opened on the connecting pipe, and the bolt is sleeved in the threaded groove.

[0014] Preferably, a steel ring is placed between the pile foundation formwork and the concrete, and the steel ring is bundled by steel bars.

[0015] Compared with the prior art, the beneficial effects of this patent are as follows: This post-grouting construction device for pile foundations has the following advantages compared with the traditional technology:

[0016] 1. During the construction of the pile foundation, fix the pile foundation formwork, pour concrete into the pile foundation formwork through an external pouring machine. After pouring the concrete, an external crane uses the crane rope to make the circular plate on the ring drive the vertical rod on the pressure plate on the connecting pipe to extend into the concrete and move up and down. At the same time, the vibration motor makes the vertical rod vibrate in the concrete to discharge the air bubbles in the concrete. At the same time, the pressure plate hammers the surface of the concrete up and down to compact the concrete poured in the pile foundation formwork, making the formed pile foundation more stable;

[0017] 2. Screw the threaded opening on the pressure plate onto the external thread outside the connecting pipe. Conversely, it can be disassembled, and the pressure plate can be replaced according to the diameter of the pile foundation formwork to ensure that the appropriate pressure plate compacts the concrete poured in the pile foundation formwork;

[0018] 3. The vibration motor installed in the connecting pipe can be repaired through the inspection opening. The revolving door rotates in the inspection opening through the hinge to close the inspection opening. The door latch rotates on the revolving door through the pin shaft and is fixed in the L-shaped block, and the rubber frame seals the inspection opening to prevent water ingress and protect the vibration motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic structural diagram of this patent;

[0020] Figure 2 It is a schematic structural diagram of the connecting pipe, L-shaped block and revolving door of this patent;

[0021] Figure 3 It is a schematic structural diagram of the pressure plate and threaded opening of this patent;

[0022] Figure 4 It is a schematic structural diagram of the revolving door, door latch and rubber frame of this patent.

[0023] In the figure: 1, pile foundation formwork; 2, concrete; 3, steel ring; 4, ramming structure, 401, pressing plate; 402, vertical rod; 403, connecting pipe; 404, round plate; 405, ring; 406, crane rope; 5, inspection opening; 6, vibration motor; 7, connecting structure; 8, bolt; 9, threaded groove; 10, external thread; 11, threaded opening; 12, revolving door; 13, door lock; 14, L-shaped block; 15, rubber frame. Detailed implementation manners

[0024] Next, the technical solutions in the embodiments of the present patent will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present patent. Obviously, the described embodiments are only a part of the embodiments of the present patent, rather than all the embodiments. Based on the embodiments in the present patent, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present patent.

[0025] Please refer to Figures 1-4 , the present patent provides a technical solution: a post-grouting construction device for pile foundation, including a pile foundation formwork 1, concrete 2 is poured in the pile foundation formwork 1, a steel ring 3 is placed between the pile foundation formwork 1 and the concrete 2, and the steel ring 3 is bundled by steel bars. During the construction of the pile foundation, the pile foundation formwork 1 is fixed, and the bundled steel ring 3 is lowered into the pile foundation formwork 1, and concrete 2 is poured between the pile foundation formwork 1 and the steel ring 3 through an external pouring machine, and a ramming structure 4 is inserted into the concrete 2;

[0026] The ramming structure 4 includes a pressing plate 401, a vertical rod 402, a connecting pipe 403, a round plate 404, a ring 405 and a crane rope 406;

[0027] The vertical rod 402 is installed on the pressing plate 401, the vertical rod 402 is inserted into the concrete 2, the connecting pipe 403 is installed on the pressing plate 401, the round plate 404 is installed on the connecting pipe 403, the ring 405 is installed on the round plate 404, and the crane rope 406 is bundled inside the ring 405;

[0028] An inspection opening 5 is opened on the connecting pipe 403, a vibration motor 6 is installed in the inspection opening 5, and the vibration motor 6 is powered on to work. After the concrete 2 is poured, an external crane uses the crane rope 406 to make the round plate 404 on the ring 405 drive the vertical rod 402 on the pressing plate 401 on the connecting pipe 403 to extend into the concrete 2 and move up and down. At the same time, the vibration motor 6 makes the vertical rod 402 vibrate in the concrete 2 to discharge the air bubbles in the concrete 2. At the same time, the pressing plate 401 hammers the surface of the concrete 2 up and down to compact the concrete 2 poured in the pile foundation formwork 1, so that the pile foundation is more stable after forming.

[0029] The outer surface of the connecting pipe 403 is processed with an external thread 10, and a threaded opening 11 is provided on the pressing plate 401. The threaded opening 11 on the pressing plate 401 is sleeved on the external thread 10 outside the connecting pipe 403. The vertical rod 402 is installed on the connecting pipe 403, so that the threaded opening 11 on the pressing plate 401 is screwed onto the external thread 10 outside the connecting pipe 403. Conversely, it can be disassembled, and the pressing plate 401 can be replaced according to the diameter of the pile foundation template 1 to ensure that the appropriate pressing plate 401 compacts the concrete poured in the pile foundation template 1.

[0030] A sealing structure is installed in the inspection opening 5. The sealing structure includes a revolving door 12, a door lock 13 and an L-shaped block 14.

[0031] The revolving door 12 is rotatably installed in the inspection opening 5 through a hinge. The door lock 13 is rotatably installed on the revolving door 12 through a pin shaft. The L-shaped block 14 is installed on the connecting pipe 403 and is located near the inspection opening 5. A rubber frame 15 is installed outside the revolving door 12. The vibrating motor 6 installed in the connecting pipe 403 can be inspected through the inspection opening 5. Then, the revolving door 12 rotates in the inspection opening 5 through the hinge to close the inspection opening 5, and the door lock 13 rotates on the revolving door 12 through the pin shaft and is inserted into the L-shaped block 14 for fixation. The rubber frame 15 seals the inspection opening 5 to prevent water from entering and protects the vibrating motor 6.

[0032] The circular plate 404 and the connecting pipe 403 are connected through a connecting structure 7. The connecting structure 7 includes a bolt 8 and a threaded groove 9.

[0033] The bolt 8 is installed on the circular plate 404, the threaded groove 9 is provided on the connecting pipe 403, and the bolt 8 is sleeved in the threaded groove 9. The ring 405 drives the bolt 8 on the circular plate 404 to be screwed into the threaded groove 9 on the connecting pipe 403 to complete the connection.

[0034] When using this post-grouting construction device for pile foundations, first, the circular ring 405 drives the bolt 8 on the circular plate 404 to be screwed into the threaded groove 9 on the connecting pipe 403 to complete the connection. Through the inspection port 5, the vibration motor 6 installed in the connecting pipe 403 can be inspected. The revolving door 12 rotates in the inspection port 5 through the hinge to close the inspection port 5. The door latch 13 rotates on the revolving door 12 through the pin shaft and is latched into the L-shaped block 14 for fixation. The rubber frame 15 seals the inspection port 5 to prevent water ingress and protect the vibration motor 6. The threaded port 11 on the pressing plate 401 is screwed onto the external thread 10 outside the connecting pipe 403. Conversely, it can be disassembled, and the pressing plate 401 can be replaced according to the diameter of the pile foundation formwork 1. During the construction of the pile foundation, the pile foundation formwork 1 is fixed, and the bundled steel ring 3 is lowered into the pile foundation formwork 1. Concrete 2 is poured between the pile foundation formwork 1 and the steel ring 3 by an external pouring machine. After pouring the concrete 2, an external crane uses the crane rope 406 to make the vertical rod 402 on the pressing plate 401 driven by the circular plate 404 on the circular ring 405 extend into the concrete 2 and move up and down. At the same time, the vibration motor 6 vibrates the vertical rod 402 in the concrete 2 to discharge the air bubbles in the concrete 2. At the same time, the pressing plate 401 hammers the surface of the concrete 2 up and down to compact the concrete 2 poured in the pile foundation formwork 1, making the pile foundation more stable after forming.

[0035] Although the embodiments of this patent 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 this patent. The scope of this patent is defined by the appended claims and their equivalents.

Claims

1. A pile foundation post-grouting construction device, comprising a pile foundation template (1), characterized in that: Concrete (2) is poured into the pile foundation template (1), and a compaction structure (4) is inserted into the concrete (2); The compacting structure (4) comprises a pressing plate (401), a vertical rod (402), a connecting pipe (403), a circular plate (404), a circular ring (405) and a crane rope (406); The vertical rod (402) is installed on the pressing plate (401), the vertical rod (402) is inserted into the concrete (2), the connecting pipe (403) is installed on the pressing plate (401), the circular plate (404) is installed on the connecting pipe (403), the circular ring (405) is installed on the circular plate (404), and the crane rope (406) is tied inside the circular ring (405); The connecting pipe (403) is provided with an inspection port (5), and a vibration motor (6) is installed in the inspection port (5).

2. A pile foundation post-grouting construction device according to claim 1, characterized in that: The connecting pipe (403) is processed with an external thread (10), the pressing plate (401) is provided with a threaded opening (11), the threaded opening (11) on the pressing plate (401) is sleeved on the external thread (10) on the connecting pipe (403), and the vertical rod (402) is installed on the connecting pipe (403).

3. A pile foundation post-grouting construction device according to claim 1, characterized in that: A sealing structure is installed in the inspection opening (5), and the sealing structure comprises a revolving door (12), a door part (13) and an L-shaped block (14); The revolving door (12) is rotatably mounted in the inspection opening (5) via a hinge, the door (13) is rotatably mounted on the revolving door (12) via a pin shaft, the L-shaped block (14) is mounted on the connecting pipe (403), and the L-shaped block (14) is placed near the inspection opening (5).

4. A pile foundation post-grouting construction device according to claim 3, characterized in that: A rubber frame (15) is installed outside the revolving door (12).

5. A pile foundation post-grouting construction device according to claim 1, characterized in that: The circular plate (404) and the connecting pipe (403) are connected via a connecting structure (7), and the connecting structure (7) comprises a bolt (8) and a thread groove (9); The bolt (8) is mounted on the circular plate (404), the thread groove (9) is provided on the connecting pipe (403), and the bolt (8) is sleeved in the thread groove (9).

6. A pile foundation post-grouting construction device according to claim 1, characterized in that: A steel bar ring (3) is placed between the pile foundation formwork (1) and the concrete (2), and the steel bar ring (3) is formed by binding steel bars.

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