Steel floral tube embedded steel bar grouting anti-pulling device

Abstract

The utility model relates to the technical field of building foundations, and discloses a steel floral tube embedded steel bar grouting anti-pulling device which comprises a steel floral tube, angle steel barbs are fixedly connected to the surface of the steel floral tube, grouting holes are formed in the surface of the steel floral tube, a pre-stressed anchor cable is fixedly arranged at the bottom of the steel floral tube in a sleeved mode, a connector is arranged at the top of the steel floral tube, and the steel floral tube embedded steel bar grouting anti-pulling device is arranged on the connector. And a drill bit is fixedly mounted at the bottom of the steel floral tube. The angle steel barbs can start soft soil to protect grouting liquid to flow out smoothly, pulling prevention can be achieved after the grouting liquid and stratum soil are bonded, prestress can be applied to the pre-stressed anchor cable after the grouting liquid and the stratum soil are bonded, tensile stress caused by loads can be counteracted, and structural damage is avoided. Meanwhile, the pre-stressed anchor cables can be connected with the ground beam foundation, the overall structure is stabilized, and therefore the overall stability of the steel floral tube after grouting is improved through the angle steel barbs and the pre-stressed anchor cables.

Description

Technical Field

[0001] The utility model relates to the technical field of building foundations, and more specifically to a steel flower tube reinforcement grouting anti-pullout device. Background Art

[0002] The steel pipe grouting is to put the processed steel pipe into the drilled hole and carry out grouting to close the hole mouth. By controlling the grouting amount and grouting pressure, the slurry is evenly injected into the stratum from the steel pipe. The slurry fills the gaps in the stratum by filling, penetrating, splitting and compacting, and cements the original loose soil particles or cracks into a whole, forming a consolidated body with new structure, high strength and good integrity, so as to achieve the purpose of strengthening the stratum and reducing soil disturbance. However, in the prior art, the steel pipe is easy to be pulled out after the reinforcement is gradually planted, and it is not stable enough. Utility Model Content

[0003] In order to overcome the deficiencies of the prior art, the utility model provides a steel flower tube rebar embedding grouting anti-pullout device, which has the advantages of anti-pullout and increased stability.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a steel flower pipe rebar embedding grouting anti-pullout device, comprising a steel flower pipe, the surface of which is fixedly connected with angle steel barbs, the surface of which is provided with grouting holes, the bottom of which is fixedly sleeved with a prestressed anchor cable, the top of which is provided with a connector, and the bottom of which is fixedly installed with a drill bit.

[0005] As a preferred technical solution of the utility model, a reinforcing rod is fixedly connected to the outer side of the steel flower tube, and a middle rod is fixedly installed in the inner cavity of the drill bit.

[0006] As a preferred technical solution of the utility model, the drill bit is conical, and a cross groove is provided in the middle of the drill bit.

[0007] As a preferred technical solution of the utility model, the angle steel barb is L-shaped, and the angle steel barb is fixedly installed below the grouting hole.

[0008] As a preferred technical solution of the utility model, a prestressed hole is opened at the bottom end of the steel flower tube, and the prestressed anchor cable is fixedly sleeved in the inner cavity of the prestressed hole.

[0009] As a preferred technical solution of the utility model, a connector is provided at the top of the steel flower pipe, and there are two steel flower pipes in total, which are connected by the connector.

[0010] As a preferred technical solution of the utility model, there are a plurality of reinforcing rods, and the plurality of reinforcing rods are fixedly installed on the outside of the steel flower tube, and the reinforcing rods are fixedly connected to the angle steel barbs.

[0011] As a preferred technical solution of the utility model, the middle rod is cross-shaped and is fixedly installed at the bottom end of the inner cavity of the drill bit.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] 1. The utility model sets the angle steel barbs so that the angle steel barbs can start the soft soil to protect the grouting liquid from flowing out smoothly, and can prevent the grouting liquid from being pulled out after the grouting liquid and the stratum soil are bonded together, and can apply prestress to the prestressed anchor cable after the grouting liquid and the stratum soil are bonded together to offset the tensile stress caused by the load and avoid structural damage. At the same time, the prestressed anchor cable can be connected to the ground beam foundation to stabilize the overall structure, thereby improving the overall stability of the steel flower pipe after grouting through the angle steel barbs and prestressed anchor cables.

[0014] 2. The utility model supports the angle steel barb through the reinforcing rod on the outside of the steel flower tube, so that when the steel flower tube drives the angle steel barb to descend, the stability of the angle steel barb is improved through the reinforcing rod, and the overall structural strength of the drill bit is improved through the middle rod, thereby avoiding the angle steel barb and the drill bit from being deformed when they come into contact with hard objects such as stones during the descent process. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the connection of the structural steel flower pipe of the utility model;

[0017] Figure 3 This is a schematic diagram of the prestressed anchor cable connection of the utility model structure;

[0018] Figure 4 This is a schematic diagram of the barbed connection of the structural angle steel of the utility model;

[0019] Figure 5 This is a schematic diagram of the middle rod connection of the structure of the utility model.

[0020] In the figure: 1. Steel flower pipe; 2. Grouting hole; 3. Angle steel barb; 4. Prestressed hole; 5. Drill bit; 6. Connector; 7. Prestressed anchor cable; 8. Reinforcement rod; 9. Middle rod. 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] like Figures 1 to 5 As shown, the utility model provides a steel flower pipe rebar grouting anti-pullout device, comprising a steel flower pipe 1, a steel angle barb 3 is fixedly connected to the surface of the steel flower pipe 1, a grouting hole 2 is opened on the surface of the steel flower pipe 1, a prestressed anchor cable 7 is fixedly sleeved on the bottom of the steel flower pipe 1, a connector 6 is arranged on the top of the steel flower pipe 1, and a drill bit 5 is fixedly installed on the bottom of the steel flower pipe 1;

[0023] By setting the angle steel barbs 3, the angle steel barbs 3 can start the soft soil protection grouting liquid to flow out smoothly, and after the grouting liquid and the formation soil are bonded, it can prevent pulling out, and after the grouting liquid and the formation soil are bonded, prestress can be applied to the prestressed anchor cable 7 to offset the tensile stress caused by the load and avoid structural damage. At the same time, the prestressed anchor cable 7 can be connected to the ground beam foundation to stabilize the overall structure, thereby improving the overall stability of the steel flower pipe 1 after grouting through the angle steel barbs 3 and the prestressed anchor cable 7.

[0024] Among them, a reinforcing rod 8 is fixedly connected to the outside of the steel flower tube 1, and a middle rod 9 is fixedly installed in the inner cavity of the drill bit 5;

[0025] The angle steel barb 3 is supported by the reinforcing rod 8 on the outside of the steel flower tube 1, so that when the steel flower tube 1 drives the angle steel barb 3 to descend, the stability of the angle steel barb 3 is improved by the reinforcing rod 8, and the overall structural strength of the drill bit 5 is improved by the middle rod 9, thereby avoiding the angle steel barb 3 and the drill bit 5 from being deformed when they come into contact with hard objects such as stones during the descent process.

[0026] The drill bit 5 is conical, and a cross groove is provided in the middle of the drill bit 5;

[0027] The drill bit 5 is conical in shape, so that the drill bit 5 can be conveniently lowered into the soil, and the slurry can be discharged from the drill bit 5 through the cross groove in the middle of the drill bit 5.

[0028] The angle steel barb 3 is L-shaped and is fixedly installed below the grouting hole 2;

[0029] The angle steel barb 3 is L-shaped, so that the angle steel barb 3 can push the soil away, thereby facilitating the lowering of the steel flower pipe 1. The angle steel barb 3 is fixedly installed below the grouting hole 2, so that the slurry can be stably discharged from the grouting hole 2.

[0030] Among them, a prestressed hole 4 is opened at the bottom end of the steel flower tube 1, and the prestressed anchor cable 7 is fixedly sleeved in the inner cavity of the prestressed hole 4;

[0031] Through the prestressed hole 4 at the bottom end of the steel flower tube 1, the prestressed anchor cable 7 can be fixedly connected to the steel flower tube 1, thereby improving the stability of the steel flower tube 1 after installation through the prestressed anchor cable 7.

[0032] Among them, a connector 6 is provided at the top of the steel flower tube 1, and there are two steel flower tubes 1, and the two steel flower tubes 1 are connected by the connector 6;

[0033] Through the connector 6 at the top of the steel flower pipe 1 , two steel flower pipes 1 can be connected through the connector 6 , thereby connecting the steel flower pipes 1 to each other.

[0034] There are multiple reinforcing rods 8, and the multiple reinforcing rods 8 are fixedly installed on the outside of the steel flower tube 1, and the reinforcing rods 8 are fixedly connected to the angle steel barbs 3;

[0035] The angle steel barb 3 is fixedly connected to the reinforcing rod 8, so that the reinforcing rod 8 can support the angle steel barb 3, thereby preventing the angle steel barb 3 from being deformed by external force during use, and greatly improving the stability of the angle steel barb 3.

[0036] The middle rod 9 is cross-shaped and is fixedly mounted at the bottom end of the inner cavity of the drill bit 5;

[0037] By making the middle rod 9 into a stone shape, the bottom end of the drill bit 5 is reinforced to prevent the drill bit 5 from being deformed due to being knocked by stones when descending in the soil.

[0038] The working principle and use process of the utility model are as follows: the steel flower pipe 1 with the prestressed anchor cable 7 installed is placed into the drill hole, and then the slurry is pressed into the steel flower pipe 1, and then the surrounding soil is split, infiltrated, compacted and filled through the grouting holes 2 evenly arranged around the steel flower pipe 1, which can effectively use the slurry to reinforce the land in the longitudinal direction, and then the pull-out resistance of the steel flower pipe 1 is improved through the angle steel barb 3, and then the prestressed anchor cable 7 is used to apply prestress and pull-out resistance. During the movement of the steel flower pipe 1, the supporting force of the angle steel barb 3 is improved by the reinforcing rod 8 to prevent the angle steel barb 3 from being deformed after being subjected to external force, and then the structural strength of the drill bit 5 is improved by the middle rod 9 to prevent the drill bit 5 from being deformed due to external force during the downward movement.

[0039] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A steel flower tube rebar grouting and pull-out resistance device, comprising a steel flower tube (1), characterized in that: The surface of the steel flower pipe (1) is fixedly connected with an angle steel barb (3), the surface of the steel flower pipe (1) is provided with a grouting hole (2), the bottom of the steel flower pipe (1) is fixedly sleeved with a prestressed anchor cable (7), the top of the steel flower pipe (1) is provided with a connector (6), and the bottom of the steel flower pipe (1) is fixedly installed with a drill bit (5).

2. The steel flower tube rebar grouting and anti-pullout device according to claim 1 is characterized in that: A reinforcing rod (8) is fixedly connected to the outer side of the steel flower tube (1), and a middle rod (9) is fixedly installed in the inner cavity of the drill bit (5).

3. The steel flower tube rebar grouting and anti-pullout device according to claim 1 is characterized in that: The drill bit (5) is conical in shape, and a cross groove is provided in the middle of the drill bit (5).

4. The steel flower tube rebar grouting and anti-pullout device according to claim 1 is characterized in that: The angle steel barb (3) is L-shaped and is fixedly installed below the grouting hole (2).

5. The steel flower tube rebar grouting and anti-pullout device according to claim 1 is characterized in that: A prestressed hole (4) is provided at the bottom end of the steel flower tube (1), and the prestressed anchor cable (7) is fixedly sleeved in the inner cavity of the prestressed hole (4).

6. The steel flower tube rebar grouting and anti-pullout device according to claim 1 is characterized by: A connecting head (6) is provided at the top end of the steel flower tube (1), and there are two steel flower tubes (1) in total, and the two steel flower tubes (1) are connected via the connecting head (6).

7. The steel flower tube rebar grouting and anti-pullout device according to claim 2 is characterized by: There are a plurality of reinforcing rods (8), and the plurality of reinforcing rods (8) are fixedly mounted on the outside of the steel flower tube (1), and the reinforcing rods (8) are fixedly connected to the angle steel barbs (3).

8. The steel flower tube rebar grouting and anti-pullout device according to claim 2 is characterized by: The middle rod (9) is cross-shaped and is fixedly mounted at the bottom end of the inner cavity of the drill bit (5).

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