Reinforcement cage pile tip protection device

Abstract

The utility model relates to the technical field of drilling pressure grouting piles, and particularly discloses a reinforcement cage pile tip protection device which comprises a buckle connected with a reinforcement cage pile tip, the buckle comprises a conical barrel and a plurality of guide grooves, and the guide grooves are fixedly connected with the inner wall of the large-diameter end of the conical barrel. And the main reinforcement end on the pile tip of the reinforcement cage is inserted into the conical barrel along the guide groove, and then the main reinforcement of the reinforcement cage is bound with the guide groove by using the iron wire, so that the buckle is connected with the main reinforcement. The main reinforcements are fixed through the buckles, the effect of replacing a part of stirrups is achieved, under the condition that the stirrups fail, it is guaranteed that the main reinforcements do not explode or displace, the main reinforcements cannot deviate from the designated positions even if the stirrups are disengaged from the part of the main reinforcements, and the subsequent pile forming quality of a reinforcement cage is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of drilled pressure grouting pile technology, specifically to a reinforced cage pile tip protection device. Background Technology

[0002] Long spiral drilling and grouting piles are a new pile-forming technology developed in recent years. Due to their advantages such as low construction noise, no mud pollution, fast pile formation speed, and low risk of borehole collapse, they have gradually gained widespread application. This technology involves first drilling a hole using a long spiral drilling rig. Then, while the drill rod is being lifted, a concrete pump is used to pump concrete at a certain pressure through a channel in the center of the drill rod into the hole. When the drill rod is completely pulled out, the hole is filled with concrete. At this point, the prefabricated reinforcing cage is transported to the construction site, a vibratory rod is inserted into the cage, and the cage and vibratory rod are lifted simultaneously. Initially, the cage is lowered into the concrete using its own weight. Once gravity prevents further lowering, the vibratory rod is activated to vibrate and press the cage to the design elevation, thus completing the grouting pile construction.

[0003] During the process of lowering the reinforcing cage into the concrete, the reinforcing cage collides with the aggregate in the concrete or the soil of the borehole wall. When the collision exceeds a certain range, it may cause the stirrups of the reinforcing cage to separate from the main reinforcement, thereby causing the main reinforcement to deviate from the designated position and affecting the subsequent pile quality. Utility Model Content

[0004] The purpose of this utility model is to provide a protective device for the tip of a steel cage pile, so as to solve the problem that the stirrups of the steel cage are easily separated from the main reinforcement after the steel cage collides with the aggregate in the concrete or the soil of the hole wall.

[0005] To address the above issues, the following technical solution is provided:

[0006] A protective device for the tip of a reinforcing cage pile includes a buckle connected to the tip of the reinforcing cage pile. The buckle includes a conical cylinder and several guide grooves, and the guide grooves are fixedly connected to the inner wall of the end of the conical cylinder with a larger diameter.

[0007] The basic principle of the above technical solution is as follows: insert the main reinforcement end on the tip of the steel cage into the conical cylinder along the guide groove, and then use iron wire to bind the main reinforcement of the steel cage to the guide groove, so that the buckle is connected to the main reinforcement.

[0008] The beneficial effects of the above technical solution are as follows: Compared with the existing method of directly inserting the pile tip of the steel cage into the concrete, this technical solution connects a buckle at the pile tip of the steel cage to fix the main reinforcement, which replaces part of the effect of the stirrups. In the event of stirrup failure, it ensures that the main reinforcement does not rupture or shift. Even if the stirrups separate from part of the main reinforcement, the main reinforcement will not deviate from the designated position, thus ensuring the subsequent pile formation quality of the steel cage.

[0009] Furthermore, the conical cylinder is welded from a single fan-shaped iron sheet, with several guide grooves welded to the ends of the fan-shaped iron sheet. The guide grooves are first evenly distributed and welded to the ends of the iron sheet, and then the iron sheet is rolled up and welded into a conical cylinder to form a snap-fit ​​structure. This snap-fit ​​structure process is simple and efficient.

[0010] Furthermore, the number of guide grooves is equal to the number of main reinforcing bars in the reinforcing cage. This equality ensures that each main reinforcing bar in the reinforcing cage can be inserted into the conical cylinder along the guide groove.

[0011] Furthermore, the guide grooves are evenly distributed around the center of the conical cylinder. The evenly distributed guide grooves hold all the reinforcing bars in place, resulting in uniform stress distribution within the conical cylinder.

[0012] Furthermore, the inner walls of the guide groove and the conical cylinder are covered with anti-slip textures. The anti-slip textures increase the friction between the main rib and the guide groove and the conical cylinder, preventing the main rib from slipping out when it inserts into the guide groove and the conical cylinder.

[0013] Furthermore, the opening of the guide groove faces the center of the conical cylinder. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure where the pile tip of the reinforcing cage engages with the clip.

[0015] Figure 2 A schematic diagram of the unfolded planar structure of the buckle;

[0016] Figure 3 This is a partial structural diagram of the guide groove being welded to the iron sheet.

[0017] The reference numerals in the accompanying drawings include: 1. Reinforcing cage pile tip; 2. Main reinforcement bar; 3. Clip; 31. Conical cylinder; 32. Guide groove; 4. Fan-shaped iron sheet; 5. Iron wire. Detailed Implementation

[0018] The following detailed description illustrates the specific implementation method:

[0019] The basic implementation examples are as follows: Figure 1-3 As shown:

[0020] A protective device for the tip of a reinforced concrete cage pile, such as Figure 1 As shown, the device includes a clip 3 connected to the tip 1 of the reinforcing cage. The clip 3 includes a conical cylinder 31 and a number of guide grooves 32 equal to the number of main reinforcing bars 2 in the reinforcing cage. The guide grooves 32 are welded to the inner wall of the end of the conical cylinder 31 with the larger diameter. The guide grooves 32 are evenly distributed around the center of the conical cylinder 31. Figure 2 As shown, the conical cylinder 31 is formed by rolling and welding a fan-shaped iron sheet 4. Several guide grooves 32 are welded to the ends of the fan-shaped iron sheet 4. The guide grooves 32 and the inner wall of the conical cylinder 31 are covered with anti-slip textures. Figure 3 As shown, the opening of the guide groove 32 faces the center of the conical cylinder 31.

[0021] The specific implementation process is as follows:

[0022] Insert the main reinforcement bar 2 at the pile tip 1 of the steel cage into the conical cylinder 31 along the guide groove 32, and then use the wire 5 to bind the main reinforcement bar 2 of the steel cage to the guide groove 32, so that the clip 3 is connected to the main reinforcement bar 2. The clip 3 fixes the main reinforcement bar 2, replacing part of the effect of the stirrup. In the event of stirrup failure, it ensures that the main reinforcement bar 2 will not be displaced. Even if the stirrup is separated from part of the main reinforcement bar 2, the main reinforcement bar 2 will not deviate from the designated position, ensuring the subsequent pile construction quality of the steel cage.

[0023] The above descriptions are merely embodiments of this utility model, and common knowledge regarding specific structures and characteristics is not elaborated upon here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the structure of this utility model, and these should also be considered within the scope of protection of this utility model. These modifications will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application shall be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A protective device for the tip of a reinforcing cage pile, comprising a buckle connected to the tip of the reinforcing cage pile, characterized in that: The buckle includes a conical cylinder and several guide grooves, which are fixedly connected to the inner wall of the end of the conical cylinder with a larger diameter; the several guide grooves are evenly distributed around the center of the conical cylinder.

2. The reinforcement cage pile tip protection device according to claim 1, characterized in that: The conical cylinder is welded from a fan-shaped iron sheet, and the ends of several guide grooves are welded to the fan-shaped iron sheet.

3. The reinforcement cage pile tip protection device according to claim 2, characterized in that: The number of guide grooves is equal to the number of main reinforcing bars in the steel cage.

4. The reinforcement cage pile tip protection device according to claim 3, characterized in that: The inner walls of the guide groove and the conical cylinder are covered with anti-slip textures.

5. A reinforcement cage pile tip protection device according to claim 4, characterized in that: The opening of the guide groove faces the center of the conical cylinder.

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