Building foundation pit support pile reinforcement cage

Abstract

The utility model discloses building foundation pit support pile reinforcement cage, it includes two reinforcement cage subassembly of casing inner chamber, the reinforcement cage subassembly includes the multiple vertical rib of annular array arrangement, multiple the outside of multiple vertical rib equal interval welding has outer ring reinforcement, the opposite side of two vertical rib of up and down all is provided with outer thread end, the surface screw thread connection of two outer thread end of up and down has the threaded sleeve. The utility model discloses through with two vertical rib end part's outer thread end adopts the threaded sleeve connection, effectively avoids the misplacement, then welds the position of threaded sleeve and outer thread end connection, then according to the diameter of casing installs the cement pulley on the reinforcement cage subassembly, when the reinforcement cage subassembly is lowered, the cement pulley rolls in the pile hole and guarantees that the reinforcement cage subassembly is in the central state, can reach two reinforcement cage between the threaded sleeve connection after welding again and will not be deviation, and adds the rolling wheel on the outside of reinforcement cage, guarantees the purpose of the central lowering of reinforcement cage.

Description

Technical Field

[0001] This utility model belongs to the field of building foundation pit technology, and in particular relates to the steel cage for building foundation pit support piles. Background Technology

[0002] The reinforcement cage for foundation pit pile foundation is a key load-bearing component used in foundation pit support or foundation engineering to enhance the bearing capacity, pull-out resistance and overall integrity of the pile foundation. Its design and construction quality directly affect the structural safety of the pile foundation and the stability of the foundation pit.

[0003] During the construction of foundation pit support piles, it is necessary to embed casings and drill holes, and then lower and pour steel cages. When the length of the steel cage is insufficient, two steel cages are usually connected by welding. However, deviations are prone to occur between the two welded steel cages, and deviations are also prone to occur during the lowering of the steel cage. Therefore, we designed a steel cage for foundation pit support piles in which two steel cages are connected by threaded sleeves before welding to avoid deviations. Rolling wheels are also added to the outside of the steel cage to ensure that the steel cage is centered when lowered. Utility Model Content

[0004] The purpose of this utility model is to provide a steel reinforcement cage for building foundation pit support piles, which has the advantages of connecting two steel reinforcement cages with threaded sleeves before welding to prevent deviation, and adding rolling wheels to the outside of the steel reinforcement cage to ensure that the steel reinforcement cage is centered when lowered, so as to solve the above-mentioned technical problems.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: a steel cage for supporting piles of building foundation pits, which includes two steel cage assemblies with inner cavity of the casing. The steel cage assembly includes multiple vertical bars arranged in a ring array. Multiple outer ring bars are welded at equal intervals on the outer side of the multiple vertical bars. External threaded ends are provided on the opposite side of the upper and lower two vertical bars. Threaded sleeves are threadedly connected to the surfaces of the upper and lower two external threaded ends. Multiple cement pulleys extending to the outer side of the outer ring bars are installed on the multiple vertical bars.

[0006] Preferably, the inner sides of the plurality of vertical bars are welded with a plurality of equally spaced inner ring bars.

[0007] Preferably, a triangular steel bar is welded to the inner side of the inner ring steel bar.

[0008] Preferably, the cement pulley is provided with an L-shaped connecting steel bar, the end of the L-shaped connecting steel bar is threaded with a nut, and the L-shaped connecting steel bar is welded to the vertical bar.

[0009] Preferably, the surface of the L-shaped connecting steel bar is welded with a plurality of connecting rods, and the plurality of connecting rods are welded to the vertical bar.

[0010] The beneficial effects of this utility model are:

[0011] 1. This utility model effectively avoids misalignment by connecting the external threaded ends of the two vertical bars with threaded sleeves. Then, the threaded sleeves are welded to the connection positions of the external threaded ends. Then, according to the diameter of the sleeve, cement pulleys are installed on the steel cage assembly. When the steel cage assembly is lowered, the cement pulleys roll in the pile hole to ensure that the steel cage assembly is in a centered state. This achieves the goal of ensuring no deviation after connecting the two steel cages with threaded sleeves and then welding. Rolling wheels are added to the outside of the steel cage to ensure that the steel cage is centered when lowered.

[0012] 2. This utility model uses the combination of inner ring steel bars and triangular steel bars. The inner ring steel bars can support multiple vertical bars, effectively preventing the vertical bars from shifting inward. Moreover, the triangular steel bars can support the inner side of the inner ring steel bars, effectively preventing the inner ring steel bars from deforming under stress and improving the support strength of the inner ring steel bars.

[0013] 3. By setting up connecting support rods, this utility model can increase the connection strength between the L-shaped connecting steel bars and the vertical bars, and improve the stability of the cement pulley in use. Attached Figure Description

[0014] The advantages of the present invention, as described above and / or in the following detailed description in conjunction with the accompanying drawings, will become clearer and more readily understood. These drawings are merely illustrative and do not limit the scope of the present invention.

[0015] Figure 1 This is a schematic diagram of one embodiment of the present utility model;

[0016] Figure 2 This is a three-dimensional disassembled schematic diagram of a steel cage assembly according to an embodiment of the present invention;

[0017] Figure 3 This is a three-dimensional schematic diagram of the connection between the L-shaped connecting steel bar and the cement pulley in one embodiment of the present invention. Detailed Implementation

[0018] In the following description, embodiments of the reinforcing cage for the foundation pit support piles of this utility model will be described with reference to the accompanying drawings.

[0019] Figure 1-3This invention illustrates a steel reinforcement cage for a foundation pit support pile according to an embodiment of the present invention. The cage includes two steel reinforcement cage assemblies 2 within the inner cavity of a casing 1. Each steel reinforcement cage assembly 2 includes a plurality of vertical bars 21 arranged in a circular array. A plurality of outer ring steel bars 22 are welded at equal intervals to the outer sides of the vertical bars 21. External threaded ends 23 are provided on opposite sides of the upper and lower vertical bars 21. Threaded sleeves 24 are threadedly connected to the surfaces of the upper and lower external threaded ends 23. A plurality of cement pulleys 25 extending to the outer sides of the outer ring steel bars 22 are installed on the vertical bars 21. A plurality of equally spaced inner ring steel bars 26 are welded to the inner sides of the vertical bars 21. Triangular steel bars 27 are welded to the inner sides of the inner ring steel bars 26. Through the cooperation of the inner ring steel bars 26 and the triangular steel bars 27, the inner ring steel bars 26... The 6 can support multiple vertical bars 21, effectively preventing the vertical bars 21 from shifting inward. Moreover, the triangular bar 27 can support the inner side of the inner ring bar 26, effectively preventing the inner ring bar 26 from deforming under stress and improving the support strength of the inner ring bar 26. The cement pulley 25 is provided with an L-shaped connecting bar 28, and the end of the L-shaped connecting bar 28 is threaded with a nut 29. The L-shaped connecting bar 28 is welded to the vertical bar 21. Multiple connecting rods 210 are welded to the surface of the L-shaped connecting bar 28 and are welded to the vertical bar 21. The setting of the connecting rods 210 can increase the connection strength between the L-shaped connecting bar 28 and the vertical bar 21 and improve the stability of the cement pulley 25 in use.

[0020] Working principle: When using this utility model, the external threaded ends 23 of the two vertical bars 21 are connected by threaded sleeves 24 to effectively avoid misalignment. Then, the threaded sleeves 24 are welded to the external threaded ends 23 to prevent the threaded sleeves 24 from slipping off the surface of the external threaded ends 23. Then, according to the diameter of the protective sleeve 1, the L-shaped connecting steel bars 28 on the cement pulleys 25 are welded to the vertical bars 21 to ensure that the distance between the two horizontal cement pulleys 25 is matched with the diameter of the protective sleeve 1. When the steel cage assembly 2 is lowered, the cement pulleys 25 roll in the pile hole to ensure that the steel cage assembly 2 is in a centered state, ensuring that the steel cage assembly 2 will not deviate when it is lowered into the pile hole, thus ensuring the quality of the subsequent pile foundation forming.

[0021] In summary: This building foundation pit support pile reinforcement cage effectively avoids misalignment by connecting the external threaded ends 23 of the two vertical bars 21 with threaded sleeves 24. Then, the threaded sleeves 24 are welded to the external threaded ends 23. Then, according to the diameter of the protective sleeve 1, cement pulleys 25 are installed on the reinforcement cage assembly 2. When the reinforcement cage assembly 2 is lowered, the cement pulleys 25 roll in the pile hole to ensure that the reinforcement cage assembly 2 is centered. This achieves the goal of ensuring no deviation after connecting the two reinforcement cages with threaded sleeves and then welding them. Furthermore, rolling wheels are added to the outside of the reinforcement cage to ensure that the reinforcement cage is centered when lowered.

Claims

1. A steel reinforcement cage for foundation pit support piles, characterized in that, Two steel cage assemblies (2) include the inner cavity of the casing (1). The steel cage assembly (2) includes multiple vertical bars (21) arranged in a ring array. Multiple outer ring bars (22) are welded at equal intervals on the outer side of the multiple vertical bars (21). External threaded ends (23) are provided on the opposite side of the upper and lower two vertical bars (21). Threaded sleeves (24) are threaded to the surfaces of the upper and lower two external threaded ends (23). Multiple cement pulleys (25) extending to the outer side of the outer ring bars (22) are installed on the multiple vertical bars (21).

2. The steel reinforcement cage for building foundation pit support piles according to claim 1, characterized in that, Multiple inner ring steel bars (26) are welded to the inner side of the multiple vertical bars (21) at equal intervals.

3. The reinforcing cage for foundation pit support piles according to claim 2, characterized in that, The inner ring steel bar (26) is welded with a triangular steel bar (27).

4. The reinforcing cage for foundation pit support piles according to claim 3, characterized in that, The cement pulley (25) is provided with an L-shaped connecting steel bar (28), the end of the L-shaped connecting steel bar (28) is threaded with a nut (29), and the L-shaped connecting steel bar (28) is welded to the vertical bar (21).

5. The reinforcing cage for the foundation pit support piles according to claim 4, characterized in that, The surface of the L-shaped connecting steel bar (28) is welded with a plurality of connecting rods (210), and the plurality of connecting rods (210) are welded to the vertical bar (21).

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