Spiral steel pile foundation of angle steel tower

Abstract

The utility model discloses an angle steel tower spiral steel pile foundation which comprises a base, a profile steel base, an angle steel tower installation seat and a plurality of spiral steel piles, the profile steel base is integrally welded and installed above the base, and the angle steel tower installation seat is integrally installed above the base and located in the center of the profile steel base. The angle steel tower mounting seat is connected with the profile steel base in a welded mode, the spiral steel pile is connected with the base and fixes the base on a stratum, the spiral steel pile comprises a pile body and a pile cone fixedly arranged at the bottom end of the pile body, and a spiral piece is fixedly arranged between the pile body and the outer wall of the pile cone. The spiral steel pile is transformed, after entering the soil, the spiral steel pile is reinforced through the spiral piece, the ground breaking cone, the semi-gear ring and the limiting cone, the connecting strength between the spiral steel pile and the soil is improved, finally concrete pouring can be conducted, and the spiral steel pile is not prone to loosening in the soil and cannot be pulled out again; therefore, potential safety hazards of angle steel tower operation are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of coated sand casting, and more specifically to a spiral steel pile foundation of an angle steel tower. Background Art

[0002] Economic development is driving urban development, and urban development cannot be separated from the strong guarantee of infrastructure construction, and communication infrastructure construction is particularly important among all infrastructure constructions. Angle steel tower is a space truss structure composed of angle steels, which has the characteristics of small plate pressure drop, large gas phase flux, good tower plate efficiency, simple structure, easy processing and manufacturing, and good rigidity, so it is widely used in the communication field.

[0003] After searching, the utility model with the publication number CN207211185U discloses a spiral steel pile foundation of a communication tower, including a steel base, a steel room base, a base flange and one or more spiral steel piles. It has the advantages of low cost, convenient demolition, fast construction speed, convenient installation, construction in any climate environment, no wet operation on site, minimal environmental pollution, and can avoid safety accidents such as landslides and collapsed holes that are prone to occur in traditional concrete foundation construction. However, the structure of the spiral steel pile is simple, and the spiral section is only set at some positions. It is driven into the foundation soil by external force. The connection between it and the ground soil is not strong enough, and the spiral steel pile is easy to loosen, which brings unsafe hidden dangers to the safe operation of the angle steel tower. Utility Model Content

[0004] In view of the problems existing in the prior art, the utility model aims to provide an angle steel tower spiral steel pile foundation.

[0005] To solve the above problems, the utility model adopts the following technical solutions.

[0006] An angle steel tower spiral steel pile foundation comprises a base, a steel base, an angle steel tower mounting seat, and a plurality of spiral steel piles, wherein the steel base is integrally welded and mounted above the base, the angle steel tower mounting seat is integrally mounted above the base and located at the center of the steel base, the angle steel tower mounting seat and the steel base are welded and connected to each other, and the tower foot of the angle steel tower can be mounted on the angle steel tower mounting seat;

[0007] The spiral steel pile is connected to a base and fixes the base on the stratum. The spiral steel pile includes a pile body and a pile cone fixed at the bottom of the pile body. A spiral sheet is fixed between the outer walls of the pile body and the pile cone. A reinforcement mechanism is arranged inside the pile body to reinforce the pile body in the stratum. The reinforcement mechanism includes a reinforcement component and an adjustment component.

[0008] As a further description of the above technical solution: a plurality of through holes are provided on the base, and mounting holes are provided around each of the through holes and are distributed in a circular array on the base. A plurality of studs that can pass through the mounting holes are fixedly provided on the top of the pile body, and nuts are threadedly connected on the studs to fix the pile body and the base together.

[0009] As a further description of the above technical solution: the reinforcement assembly includes a connecting ring fixedly arranged on the inner wall of the pile body and spaced apart along the length direction of the pile body, a connecting column fixedly arranged on the end face of the connecting ring, a connecting rod hingedly arranged on the outer wall of the connecting column, a semi-toothed ring fixedly arranged at one end of the connecting rod, and a soil-breaking cone fixedly arranged on the end face of the semi-toothed ring.

[0010] As a further description of the above technical solution: a plurality of through grooves are opened on the outer wall of the pile body, and the earth-breaking cone can be accommodated in the through grooves. The earth-breaking cone is a triangular cone-shaped component that is wide at the top and narrow at the bottom.

[0011] As a further description of the above technical solution: the adjustment component includes a screw rod rotatably arranged inside the pile body, a screw sleeve threadedly connected to the outer walls of both ends of the screw rod, and a rack fixedly arranged between the two screw sleeves and meshing with the corresponding half-toothed disc.

[0012] As a further description of the above technical solution: limiting cones distributed in a circumferential array are fixedly arranged on the outer surface of the nut at the bottom, the end of the limiting cone away from the nut can pass through the pile body and the pile cone, and a notch is opened on the limiting cone.

[0013] As a further description of the above technical solution: a metal mesh is fixedly arranged between the pile body and the pile cone, and the spiral sheet is fixedly arranged on the outer wall of the cylinder composed of the pile body, the pile cone and the metal mesh.

[0014] As a further description of the above technical solution: the top of the screw is flush with the top of the pile body and is provided with a hexagonal adjustment hole, the top of the pile body is provided with a pouring port, and the positions of the hexagonal adjustment hole and the pouring port correspond to the positions of the through hole.

[0015] Compared with the prior art, the advantages of the present invention are:

[0016] By modifying ordinary spiral steel piles, after the spiral steel piles enter the soil, they are reinforced by spiral plates, breaking cones, semi-toothed rings and limiting cones to improve the connection strength between the spiral steel piles and the soil. Finally, concrete can be poured. The spiral steel piles are not easy to loosen in the soil and will not be pulled out again, thereby reducing the safety hazards of angle steel tower operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0018] Figure 2 It is a three-dimensional structural schematic diagram of the spiral steel pile of the utility model;

[0019] Figure 3 It is a partial cross-sectional structural schematic diagram of the spiral steel pile of the utility model;

[0020] Figure 4 This is a schematic diagram of the internal structure of the spiral steel pile of the utility model;

[0021] Figure 5 For this utility model Figure 4 The enlarged schematic diagram at A in the middle;

[0022] Figure 6 For this utility model Figure 4 The enlarged schematic diagram of point B in the middle;

[0023] Figure 7 It is an exploded schematic diagram of the foundation, steel base and angle steel tower mounting base of the utility model.

[0024] Description of the numbers in the figure:

[0025] 100, base; 101, through hole; 102, mounting hole; 200, steel base; 300, angle steel tower mounting seat; 400, spiral steel pile; 401, pile body; 402, pile cone; 403, spiral piece; 404, adjustment component; 4041, screw; 4042, screw sleeve; 4043, rack; 4044, limiting cone; 4045, notch; 4046, hexagonal adjustment hole; 405, reinforcement component; 4051, connecting ring; 4052, connecting column; 4053, connecting rod; 4054, semi-toothed ring; 4055, breaking cone; 406, stud; 407, through slot; 408, metal mesh; 409, pouring port. DETAILED DESCRIPTION

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention;

[0027] See also Figures 1 to 7 In the utility model, an angle steel tower spiral steel pile foundation comprises a base, a steel base, an angle steel tower mounting seat, and a plurality of spiral steel piles. The steel base is integrally welded and mounted above the base. The angle steel tower mounting seat is integrally mounted above the base and located at the center of the steel base. The angle steel tower mounting seat and the steel base are welded and connected to each other. The tower foot of the angle steel tower can be mounted on the angle steel tower mounting seat.

[0028] Among them, the spiral steel pile is connected to the base and fixes the base on the stratum. The spiral steel pile includes a pile body and a pile cone fixed at the bottom of the pile body. A spiral sheet is fixed between the outer wall of the pile body and the pile cone. A reinforcement mechanism is arranged inside the pile body to reinforce the pile body in the stratum. The reinforcement mechanism includes a reinforcement component and an adjustment component.

[0029] In this embodiment, preferably, a plurality of through holes are opened on the base, and mounting holes are opened around each through hole and are distributed in a circular array on the base. A plurality of studs that can pass through the mounting holes are fixedly arranged on the top of the pile body, and nuts are threadedly connected to the studs to fix the pile body and the base together.

[0030] In this embodiment, preferably, the adjustment component includes a screw rod rotatably arranged inside the pile body, a screw sleeve threadedly connected to the outer walls at both ends of the screw rod, and a rack fixedly arranged between the two screw sleeves and meshing with the corresponding half-toothed discs; by rotating the screw rod, the screw sleeve is driven downward by the thread transmission of the screw rod, and then the rack is driven downward.

[0031] In the present embodiment, preferably, the reinforcement assembly includes a connecting ring fixedly arranged on the inner wall of the pile body and spaced apart along the length direction of the pile body, a connecting column fixedly arranged on the end face of the connecting ring, a connecting rod hingedly arranged on the outer wall of the connecting column, a semi-toothed ring fixedly arranged at one end of the connecting rod, and a ground-breaking cone fixedly arranged on the end face of the semi-toothed ring; the rack engages with the semi-toothed ring during the downward process, so that the semi-toothed ring rotates in a circular arc around the connecting column through the connecting rod, and the ground-breaking cone on the end face of the semi-toothed ring and part of the semi-toothed ring can be inserted into the soil, thereby playing a role in reinforcing the pile column in the soil.

[0032] In this embodiment, preferably, a plurality of through grooves are opened on the outer wall of the pile body, and the breaking cone can be accommodated in the through grooves. The breaking cone is a triangular cone-shaped component that is wide at the top and narrow at the bottom. The shape of the breaking cone allows it to be better inserted into the soil.

[0033] In the present embodiment, preferably, a limiting cone distributed in a circumferential array is fixedly provided on the outer surface of the nut at the bottom, and the end of the limiting cone away from the nut can pass through the pile body and the pile cone, and a slot is provided on the limiting cone; since the sleeve is threadedly connected to the screw rod, the sleeve is connected to the limiting cone and passes through the pile body, and the circumferential rotation of the sleeve is limited by the limiting cone. Therefore, the sleeve can drive the rack downward, and as the sleeve moves downward, the limiting cone passes through the pile cone and is inserted into the soil, thereby improving the firmness of the pile column in the soil.

[0034] In this embodiment, preferably, a metal mesh is fixedly arranged between the pile body and the pile cone, and the spiral sheet is fixedly arranged on the outer wall of the cylinder composed of the pile body, the pile cone and the metal mesh.

[0035] In this embodiment, preferably, the top of the screw is flush with the top of the pile body and is provided with a hexagonal adjustment hole, and the top of the pile body is provided with a pouring port, and the positions of the hexagonal adjustment hole and the pouring port correspond to the positions of the through hole, so as to facilitate the control of the screw rotation and subsequent pouring.

[0036] The working principle and use process of this utility model:

[0037] During on-site construction, several spiral steel piles are installed according to the positions of the through holes and installation holes on the base, and the pile body is driven into the stratum by a drilling rig. The pile cone at the bottom of the pile column and the external spiral sheet can more conveniently rotate the spiral steel pile into the stratum; by controlling the rotation of the screw rod, the screw rod drives the screw sleeve to move the rack downward, and the rack meshes with the semi-toothed ring during the downward movement, so that the semi-toothed ring rotates in an arc around the connecting column through the connecting rod, and the soil-breaking cone on the end face of the semi-toothed ring and part of the semi-toothed ring can be inserted into the soil, which plays a role in reinforcing the pile column in the soil; while the screw sleeve drives the rack downward, the screw sleeve drives the limiting cone downward and passes through the pile cone and is inserted into the soil, thereby improving the firmness of the pile column in the soil;

[0038] Then, the mounting holes on the base are inserted into the studs on the pile body and locked with nuts. After the installation is completed, concrete can be poured into the pile body through the through holes and the pouring port according to the site conditions. The concrete overflows through the through grooves, and the concrete can also flow from the grooves into the space formed between the pile column, the pile cone and the metal mesh, making it more solid after pouring.

[0039] In summary, the utility model transforms ordinary spiral steel piles. After the spiral steel piles enter the soil, they are reinforced by spiral sheets, ground-breaking cones, semi-toothed rings and limiting cones to improve the connection strength between the spiral steel piles and the soil. Finally, concrete can be poured. The spiral steel piles are not easy to loosen in the soil and will not be pulled out again, thereby reducing the safety hazards of the angle steel tower operation.

[0040] The electronic components and modules used in the content of this utility model can all be parts that are commonly used in the market and can realize the specific functions in this case, and the specific models and sizes can be selected and adjusted according to actual needs. The electronic components and modules are all connected to an external power supply and a control switch for use. Their specific circuit connection methods and methods of use are commonly used public technologies and will not be elaborated on here.

[0041] The above is only a preferred specific implementation of the utility model; however, the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and improved ideas of the utility model within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model.

Claims

1. An angle steel tower spiral steel pile foundation, comprising a base (100), a steel base (200), an angle steel tower mounting base (300), and a plurality of spiral steel piles (400), characterized in that: The steel base (200) is integrally welded and installed above the base (100); the angle steel tower mounting seat (300) is integrally installed above the base (100) and is located at the center of the steel base (200); the angle steel tower mounting seat (300) and the steel base (200) are welded and connected to each other; and the tower foot of the angle steel tower can be installed on the angle steel tower mounting seat (300); The spiral steel pile (400) is connected to the base (100) and fixes the base (100) on the stratum. The spiral steel pile (400) includes a pile body (401) and a pile cone (402) fixedly arranged at the bottom end of the pile body (401). A spiral sheet (403) is fixedly arranged between the outer walls of the pile body (401) and the pile cone (402). A reinforcement mechanism for reinforcing the pile body (401) in the stratum is arranged inside the pile body (401). The reinforcement mechanism includes a reinforcement component (405) and an adjustment component (404).

2. The angle steel tower spiral steel pile foundation according to claim 1, characterized in that: The base (100) is provided with a plurality of through holes (101), each of the through holes (101) is provided with mounting holes (102) which are arranged in a circumferential array on the base (100), and a plurality of studs (406) which can pass through the mounting holes (102) are fixedly provided on the top of the pile body (401), and nuts are threadedly connected on the studs (406) to fix the pile body (401) and the base (100) together.

3. The angle steel tower spiral steel pile foundation according to claim 2, characterized in that: The reinforcement assembly (405) comprises a connecting ring (4051) fixedly arranged on the inner wall of the pile body (401) and spaced apart along the length direction of the pile body (401), a connecting column (4052) fixedly arranged on the end face of the connecting ring (4051), a connecting rod (4053) hingedly mounted on the outer wall of the connecting column (4052), a semi-toothed ring (4054) fixedly arranged at one end of the connecting rod (4053), and a soil-breaking cone (4055) fixedly arranged on the end face of the semi-toothed ring (4054).

4. The angle steel tower spiral steel pile foundation according to claim 3, characterized in that: A plurality of through grooves (407) are provided on the outer wall of the pile body (401), and the earth-breaking cone (4055) can be accommodated in the through grooves (407). The earth-breaking cone (4055) is a triangular cone-shaped component that is wide at the top and narrow at the bottom.

5. The angle steel tower spiral steel pile foundation according to claim 3, characterized in that: The adjustment assembly (404) comprises a screw (4041) rotatably arranged inside the pile body (401), screw sleeves (4042) threadedly connected to the outer walls of both ends of the screw (4041), and a rack (4043) fixedly arranged between the two screw sleeves (4042) and meshing with the corresponding half toothed disc.

6. The angle steel tower spiral steel pile foundation according to claim 5, characterized in that: The outer surface of the nut at the bottom is fixedly provided with limiting cones (4044) distributed in a circumferential array, and the end of the limiting cone (4044) away from the nut can pass through the pile body (401) and the pile cone (402), and the limiting cone (4044) is provided with a notch (4045).

7. The angle steel tower spiral steel pile foundation according to claim 1, characterized in that: A metal mesh (408) is fixedly arranged between the pile body (401) and the pile cone (402), and the spiral sheet (403) is fixedly arranged on the outer wall of the cylinder composed of the pile body (401), the pile cone (402) and the metal mesh (408).

8. The angle steel tower spiral steel pile foundation according to claim 5, characterized in that: The top of the screw rod (4041) is flush with the top of the pile body (401) and is provided with a hexagonal adjustment hole (4046). The top of the pile body (401) is provided with a pouring port (409). The positions of the hexagonal adjustment hole (4046) and the pouring port (409) correspond to the positions of the through hole (101).

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