Cast-in-place pile head structure facilitating rapid breaking

Abstract

The utility model relates to the technical field of cast-in-place piles, and discloses a cast-in-place pile head structure convenient to break and remove quickly, which comprises a blocking ring, a plurality of isolation pipes are fixedly connected to the inner wall of the blocking ring, pile head steel bars are arranged on the inner walls of the isolation pipes, cutters are arranged on the inner wall of the blocking ring, and connecting blocks are arranged at the opposite ends of the cutters. Two clamping blocks are fixedly connected to the left side and the right side of the bottom of the inner wall of the connecting block, the outer walls of the clamping blocks are arranged on the inner walls of the clamping grooves, rotating shafts are arranged at the top ends of the clamping blocks, and the bottom ends of the rotating shafts are arranged at the bottom of the inner wall of the connecting block. In the utility model, the concrete, close to the pile head reinforcing steel bars, on the outer side of the bottom end of the pile head is separated from the concrete at the top of the cast-in-place pile through the blocking ring, and the whole pile head can be directly cut off through the cutter when the pile head is broken in the later period, so that the problem that the cutter cannot cut the concrete between the pile head reinforcing steel bars is avoided; part of joints are still reserved between the pile head and the pile body of the cast-in-place pile and need to be cut off manually.

Description

Technical Field

[0001] The utility model relates to the technical field of cast-in-place piles, in particular to a cast-in-place pile head structure which is convenient for rapid removal. Background Art

[0002] Since the concrete strength at the top of the bored pile is relatively poor, in order to ensure the quality of the pile body during construction, the bored pile is generally over-cast by more than 50 centimeters according to design specifications. The over-cast part is the bored pile head. The main reinforcement of the bored pile is located inside the bored pile head, forming the pile head reinforcement. After the bored pile is poured as a whole, the bored pile head needs to be broken to expose the pile head reinforcement.

[0003] After searching, a cast-in-place pile head structure that is easy to quickly break with announcement number CN217758758U includes: an isolation sleeve, each pile head steel bar is sleeved with the isolation sleeve; a partition plate, the partition plate is arranged between all the pile head steel bars, the partition plate includes a plurality of partition plates that are connected to each other and radiate from the center, a vertical rotation hole is opened in the center of the partition plate, a vertical shaft is passed through the rotation hole, the vertical shaft is rotatably connected to the partition plate, the length of the vertical shaft is greater than the height of the partition plate, and a sealing cover is detachably connected to the top rotation hole opening of the partition plate; a plurality of cutting knives, each of which is fixedly connected to the bottom end of the vertical shaft, and the end of the cutting knives away from the vertical shaft extends to the pile head steel bar. The present application has the effect of simplifying the breaking of the cast-in-place pile head;

[0004] Based on the above patent, the cast-in-place pile head is divided into multiple pieces by a partition plate, that is, the entire cast-in-place pile head is decomposed into multiple parts, which is convenient for the subsequent crushing of the cast-in-place pile head; the vertical axis is rotated by an external device, and the vertical axis drives all the blades to cut off the connection between the cast-in-place pile head and the pile body, so that the cast-in-place pile head and the pile body are separated, which is convenient for the demolition of the cast-in-place pile head, but the blade cannot cut into the concrete between the steel bars of the pile head, and some connections between the cast-in-place pile head and the pile body still need to be manually excavated and cut off. Utility Model Content

[0005] The utility model aims to solve the shortcomings of the prior art and proposes a cast-in-place pile head structure that is easy to break quickly, which can directly separate the pile head from the pile body and divide the pile body into several parts for easy quick breaking.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A cast-in-place pile head structure that is easy to break quickly includes a barrier ring, a plurality of isolation tubes are fixedly connected to the inner wall of the barrier ring, the inner walls of the isolation tubes are all provided with pile head steel bars, the inner wall of the barrier ring is connected to a rotating shaft through a cutting component, the outer wall of the rotating shaft is provided with a sleeve, the bottom end of the sleeve is provided with a rotating groove, and the inner wall of the sleeve is connected to a conical head through a partition component.

[0008] Furthermore, the cutting assembly includes a cutter arranged on the inner wall of the barrier ring, a connecting block is arranged at the opposite end of the cutter, two clamping blocks are fixedly connected on the left and right sides of the bottom of the inner wall of the connecting block, the top of the clamping block is arranged at the bottom of the rotating shaft, and clamping grooves are arranged on the left and right sides of the bottom of the rotating shaft.

[0009] Furthermore, the partition assembly includes a partition fixedly connected to the inner wall of the sleeve, the inner wall of the partition is slidably connected with a slider, and the inward end of the conical head is fixedly connected to the outward end of the slider.

[0010] Furthermore, the outer wall of the clamping block is arranged on the inner wall of the clamping groove, and the bottom end of the rotating shaft is arranged on the bottom of the inner wall of the connecting block.

[0011] Furthermore, the top end of the connecting block is rotatably connected to the inner wall of the rotating groove.

[0012] Furthermore, the bottom ends of the partitions are fixedly connected to the top ends of the barrier rings.

[0013] Furthermore, the inward end of the sliding block is initially located inside the sleeve.

[0014] The utility model has the following beneficial effects:

[0015] 1. In the utility model, the barrier ring cooperates with the isolation tube, the rotating shaft, the connecting block, the cutter, the clamping block and the clamping groove to realize the structure that can directly separate the pile head from the pile body and divide the pile body into several parts for quick removal. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A three-dimensional diagram of a cast-in-place pile head structure that is easy to quickly break, proposed by the utility model;

[0017] Figure 2 A cross-sectional view of a rotating shaft in a cast-in-place pile head structure that is easy to quickly break, proposed by the utility model;

[0018] Figure 3 for Figure 2 A is an enlarged view of the middle image.

[0019] Legend:

[0020] 1. Blocking ring; 2. Isolation tube; 3. Slider; 4. Partition; 5. Sleeve; 6. Rotating shaft; 7. Conical head; 8. Pile head reinforcement; 9. Connecting block; 10. Cutter; 11. Clamping block; 12. Rotating groove; 13. Clamping groove. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0022] Reference Figure 1-3 The utility model provides an embodiment: a cast-in-place pile head structure that is easy to break quickly, including a barrier ring 1, a plurality of isolation tubes 2 are fixedly connected to the inner wall of the barrier ring 1, the inner walls of the isolation tubes 2 are all provided with pile head steel bars 8, a cutter 10 is provided on the inner wall of the barrier ring 1, a connecting block 9 is provided at the opposite end of the cutter 10, two clamping blocks 11 are fixedly connected on the left and right sides of the bottom of the inner wall of the connecting block 9, the outer wall of the clamping block 11 is arranged on the inner wall of the clamping groove 13, a rotating shaft 6 is provided on the top of the clamping block 11, and the bottom of the rotating shaft 6 The end is arranged at the bottom of the inner wall of the connecting block 9, the left and right sides of the bottom end of the rotating shaft 6 are provided with a card groove 13, the outer wall of the rotating shaft 6 is provided with a sleeve 5, the bottom end of the sleeve 5 is provided with a rotating groove 12, the top of the connecting block 9 is rotatably connected to the inner wall of the rotating groove 12, the inner wall of the sleeve 5 is fixedly connected with a partition 4, the bottom end of the partition 4 is fixedly connected to the top of the blocking ring 1, the inner wall of the partition 4 is slidably connected with a slider 3, the inward end of the slider 3 is initially located inside the sleeve 5, and the outward end of the slider 3 is fixedly connected with a cone head 7;

[0023] Specifically, when pouring concrete, the isolation tube 2 can prevent the concrete of the pile head from contacting the pile head steel bar 8, so as to avoid the difficulty in separation when breaking the pile head later. At the same time, the concrete on the outer side of the pile head bottom end close to the pile head steel bar 8 is separated from the concrete on the top of the cast-in-place pile by the barrier ring 1. When breaking the pile head later, the entire pile head can be directly cut off by the cutter 10, so as to avoid the cutter 10 being unable to cut the concrete between the pile head steel bars 8. There is still a part of the connection between the pile head and the pile body of the cast-in-place pile, which needs to be manually excavated and cut off. When breaking the cast-in-place pile head, first, the rotating shaft 6 is Insert it into the sleeve 5, and move the slider 3 inside the partition 4 by hammering the rotating shaft 6. Cooperate with the conical head 7 on the slider 3 to separate the pile head from the inside into six pieces, which is convenient for the subsequent crushing of the pile head. When the rotating shaft 6 reaches the bottom of the sleeve 5, the card slot 13 fits with the card block 11. At this time, the rotating shaft 6 is rotated by an external device to drive the connecting block 9 to rotate inside the rotating groove 12 at the bottom of the sleeve 5, so that the cutter 10 cuts the concrete at the bottom of the pile head, so that the pile head is directly separated from the pile body. Then, since the pile head has been divided, each individual only needs to be knocked off the isolation tube 2 for easy breaking.

[0024] Working principle: When pouring concrete, the isolation tube 2 can prevent the concrete of the pile head from contacting the pile head steel bar 8, so as to avoid the difficulty in separation when breaking the pile head later. At the same time, the concrete on the outer side of the pile head bottom end close to the pile head steel bar 8 is separated from the concrete on the top of the pile by the barrier ring 1. When breaking the pile head later, the entire pile head can be directly cut off by the cutter 10, so as to avoid the cutter 10 being unable to cut the concrete between the pile head steel bars 8. There is still a part of the connection between the pile head and the pile body of the cast-in-place pile, which needs to be manually excavated and cut off. When breaking the cast-in-place pile head, first, the rotating shaft 6 Insert it into the sleeve 5, and move the slider 3 inside the partition 4 by hammering the rotating shaft 6. Cooperate with the conical head 7 on the slider 3 to separate the pile head from the inside into six pieces, which is convenient for the subsequent crushing of the pile head. When the rotating shaft 6 reaches the bottom of the sleeve 5, the card slot 13 fits with the card block 11. At this time, the rotating shaft 6 is rotated by an external device to drive the connecting block 9 to rotate inside the rotating groove 12 at the bottom of the sleeve 5, so that the cutter 10 cuts the concrete at the bottom of the pile head, so that the pile head is directly separated from the pile body. Then, since the pile head has been divided, each individual only needs to be knocked off the isolation tube 2 for easy breaking.

[0025] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A cast-in-place pile head structure that is easy to break quickly, comprising a barrier ring (1), characterized in that: The inner wall of the barrier ring (1) is fixedly connected to a plurality of isolation tubes (2), the inner walls of the isolation tubes (2) are all provided with pile head steel bars (8), the inner wall of the barrier ring (1) is connected to a rotating shaft (6) via a cutting assembly, the outer wall of the rotating shaft (6) is provided with a sleeve (5), the bottom end of the sleeve (5) is provided with a rotating groove (12), and the inner wall of the sleeve (5) is connected to a conical head (7) via a partition assembly.

2. The cast-in-place pile head structure that is easy to break quickly according to claim 1, characterized in that: The cutting assembly comprises a cutter (10) arranged on the inner wall of the barrier ring (1), a connecting block (9) being arranged at one opposite end of the cutter (10), two clamping blocks (11) being fixedly connected on the left and right sides of the bottom of the inner wall of the connecting block (9), the top end of the clamping block (11) being arranged at the bottom end of the rotating shaft (6), and clamping grooves (13) being arranged on the left and right sides of the bottom end of the rotating shaft (6).

3. The cast-in-place pile head structure that is easy to break quickly according to claim 1, characterized in that: The partition assembly comprises a partition plate (4) fixedly connected to the inner wall of the sleeve (5), the inner wall of the partition plate (4) is slidably connected to a slider (3), and the inward end of the conical head (7) is fixedly connected to the outward end of the slider (3).

4. The cast-in-place pile head structure that is easy to break quickly according to claim 2, characterized in that: The outer wall of the clamping block (11) is arranged on the inner wall of the clamping groove (13), and the bottom end of the rotating shaft (6) is arranged on the bottom of the inner wall of the connecting block (9).

5. The cast-in-place pile head structure that is easy to break quickly according to claim 4, characterized in that: The top end of the connecting block (9) is rotatably connected to the inner wall of the rotating groove (12).

6. The cast-in-place pile head structure that is easy to break quickly according to claim 3, characterized in that: The bottom ends of the partitions (4) are fixedly connected to the top ends of the barrier rings (1).

7. The cast-in-place pile head structure that is easy to break quickly according to claim 3, characterized in that: The inward end of the slider (3) is initially located inside the sleeve (5).

Images