A splicing type electric power tower prefabricated pile foundation device

Abstract

The utility model discloses a kind of splicing type electric power iron tower precast pile foundation devices, including pedestal, the top of the pedestal is provided with mounting slot, further including setting pouring assembly and fastening assembly in the top of pedestal, the pouring assembly includes the fixed platform of being clamped in the inner wall of mounting slot, the top of the pedestal is provided with a pair of pouring hole, the top of the fixed platform is provided with a pair of mounting hole compatible with pouring hole, the inner peripheral wall of each mounting hole is inserted with pouring ring pipe, the top of each pouring ring pipe is provided with pouring port in two sides, and the one end of each pouring ring pipe is inserted with fixed rod. The utility model is injected into concrete slurry inside pouring hole through pouring port, then stationary waits for concrete to coagulate, through the cooperation between thread groove and protruding rib, the compactness and stability between the concrete of secondary pouring and fixed rod and pedestal are improved, and the effect that the stability of overall device is improved is achieved.

Description

Technical Field

[0001] This utility model relates to the field of power transmission tower technology, and in particular to a precast pile foundation device for power transmission towers that can be spliced ​​together. Background Technology

[0002] As the core supporting structure of power transmission and distribution lines, the stability and reliability of the foundation of power towers are of paramount importance.

[0003] A search revealed Chinese patent CN211773844U, which discloses a precast pipe pile foundation device for power transmission towers. The device includes a support platform with at least one pouring hole at its top. Several anchor bolts are evenly distributed around each pouring hole. A grouting pipe assembly is inserted into each pouring hole. The grouting pipe assembly includes a straight pipe with an end plate at its top. An upwardly extending screw is mounted on the end plate, and a detachable top plate is mounted on the screw. A positioning hole is provided on the top plate corresponding to each anchor bolt. This device shortens the construction cycle, the precast components easily ensure the quality of the finished product, and it is environmentally friendly.

[0004] However, the device also has the following problems: A straight pipe is inserted into the pouring hole, and a grout outlet is provided on the outer wall of the bottom end of the straight pipe. Concrete grout is injected into the top of the straight pipe and then fills the pouring hole through the straight pipe and the grout outlet. However, in actual use, because the grout outlet is located at the bottom end of the straight pipe, the concrete grout fills the pouring hole from bottom to top through the grout outlet. Large solid particles in the concrete grout are easily trapped in the grout outlet, causing the liquid in the concrete grout to fill the pouring hole. The resulting concrete strength is difficult to meet the design requirements, making it difficult to effectively improve the overall stability of the device. Utility Model Content

[0005] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a modular precast pile foundation device for power transmission towers.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A precast pile foundation device for a splicable power tower includes a base, the top of which has an installation groove, and also includes a casting component and a fastening component disposed above the base.

[0007] The casting assembly includes a fixed platform that snaps into the inner wall of the mounting groove. The top of the base has a pair of casting holes, and the top of the fixed platform has a pair of mounting holes that are adapted to the casting holes. A casting ring tube is inserted into the inner peripheral wall of each mounting hole. A casting port is opened on both sides of the top of each casting ring tube, and a fixing rod is inserted into one end of each casting ring tube.

[0008] Preferably, each of the casting holes has a threaded groove at the bottom of its inner peripheral wall, and each of the fixing rods has a protruding rib fixedly connected to its outer peripheral wall. Through the cooperation of the casting ring pipe and the fixing rod, a channel for pouring concrete is formed at the connection of the precast components. The concrete poured on site can fill the annular gap between the threaded groove and the protruding rib. After hardening, it forms a concrete key, which tightly binds the base, fixing platform and inserted rod into a whole, greatly enhancing the integrity and connection strength of the structure.

[0009] Preferably, each of the protruding ribs is spirally arranged along the outer peripheral wall of the fixing rod, and the cross-section of each pouring port gradually increases from top to bottom. Setting the protruding ribs in a spiral shape, compared with straight ribs or dot-shaped protrusions, can produce continuous and uniform mechanical interlocking with the concrete, further optimizing stress transmission, preventing stress concentration, and making the pull-out resistance more excellent.

[0010] Preferably, the fastening assembly includes a pair of fastening plates respectively fixedly connected to the top of the outer peripheral wall of the cast ring pipe. Each fastening plate has a limiting hole at its corner. As a bearing surface, the fastening plate helps to distribute the load transmitted from the tower more evenly to the cast ring pipe and the concrete inside, thus improving the local stress condition.

[0011] Preferably, multiple limiting holes are provided on the top of the fixed platform near the mounting hole and on the top of the base near the pouring hole. An anchor bolt is inserted into one end of each limiting hole. The anchor bolt provides strong tensile and shear resistance and works together with the internal concrete structure to ensure the stability of the entire foundation device under various complex external forces and prevent the foundation from slipping or overturning.

[0012] Preferably, each of the fixed rods has multiple slots at the top of its outer peripheral wall, and each of the casting ring pipes has multiple locking blocks that are compatible with the slots fixedly connected to its inner peripheral wall. The cooperation between the locking blocks and the slots provides a clear positioning feel when the fixed rod is inserted, ensuring that it is installed in place. At the same time, it can effectively prevent the fixed rod from rotating relative to the concrete during the casting process or during its service life, thus avoiding the weakening of the interlocking effect between the reinforcing bar and the concrete due to rotation.

[0013] The beneficial effects of this utility model are as follows: 1. Inject concrete grout into the pouring hole through the pouring port, and then let it stand and wait for the concrete to set. Through the cooperation between the threaded groove and the protruding rib, the tightness and stability of the secondary concrete and the fixed rod and base are improved, thereby improving the overall stability of the device. 2. By cooperating with the slot and the block, the stability of the connection between the casting ring pipe and the fixing rod is improved, further enhancing the overall stability of the device. Attached Figure Description

[0014] Figure 1 This is a first-view three-dimensional structural diagram of a precast pile foundation device for a power transmission tower that can be spliced ​​together according to this utility model. Figure 2 This is a half-section three-dimensional structural diagram of some fastening components of a splicable precast pile foundation device for power towers proposed in this utility model. Figure 3 This is a partial cross-sectional three-dimensional structural diagram of some components of a precast pile foundation device for splicable power towers proposed in this utility model. Figure 4 This is a partial cross-sectional three-dimensional structural diagram of a precast pile foundation device for splicable power towers proposed in this utility model.

[0015] In the diagram: 1. Base; 2. Mounting groove; 3. Fixing platform; 4. Pouring hole; 5. Mounting hole; 6. Threaded groove; 7. Pouring ring pipe; 8. Fastening plate; 9. Limiting hole; 10. Anchor bolt; 11. Fixing rod; 12. Protruding rib; 13. Pouring port; 14. Slot; 15. Locking block. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0017] Example 1, referring to Figure 1-4 A precast pile foundation device for splicable power towers includes a base 1, wherein the base 1 is made of concrete casting to improve the overall structural strength and service life of the device. The top of the base 1 is provided with an installation groove 2, and the device also includes a casting component and a fastening component set on the base 1.

[0018] like Figures 2-4As shown, in one embodiment, the casting assembly includes a fixing platform 3 that snaps into the inner wall of the mounting groove 2. The fixing platform 3 is made of high-strength alloy material to further enhance the structural strength of the device. A pair of casting holes 4 are provided on the top of the base 1, and a pair of mounting holes 5 that are adapted to the casting holes 4 are provided on the top of the fixing platform 3. A casting ring pipe 7 is inserted into the inner peripheral wall of each mounting hole 5. Casting ports 13 are provided on both sides of the top of each casting ring pipe 7. The cross-section of each casting port 13 gradually increases from top to bottom. The casting ports 13 facilitate the injection of concrete into the casting holes 4. The grout plays a role, and the design of the pouring port 13, which is smaller at the top and larger at the bottom, avoids clogging of the large particle pouring port 13, which facilitates the improvement of concrete pouring efficiency. Each of the pouring ring pipes 7 has a fixing rod 11 inserted at one end. Each of the pouring holes 4 has a threaded groove 6 at the bottom of its inner peripheral wall. Each of the fixing rods 11 has a protruding rib 12 fixedly connected to its outer peripheral wall. Each protruding rib 12 is spirally arranged along the outer peripheral wall of the fixing rod 11. Through the mutual cooperation between the threaded groove 6 and the protruding rib 12, the tightness and stability of the secondary concrete, the fixing rod 11 and the base 1 are improved, and the overall stability of the device is improved.

[0019] like Figure 2 and Figure 4 As shown, in one embodiment, the fastening assembly includes a pair of fastening plates 8 respectively fixedly connected to the top of the outer peripheral wall of the casting ring pipe 7. Each fastening plate 8 has a limiting hole 9 at its corner. The top of the fixing platform 3 near the mounting hole 5 and the top of the base 1 near the casting hole 4 are provided with multiple limiting holes 9. Anchor bolts 10 are inserted into one end of each limiting hole 9. Through the mutual cooperation between the limiting holes 9 and the anchor bolts 10, the fixing platform 3 and the base 1 are locked together, further improving the overall stability of the device. The top of the outer peripheral wall of each fixing rod 11 is provided with multiple slots 14. The inner peripheral wall of each casting ring pipe 7 is fixedly connected with multiple locking blocks 15 that are adapted to the slots 14. Through the mutual cooperation between the slots 14 and the locking blocks 15, the stability of the connection between the casting ring pipe 7 and the fixing rod 11 is improved.

[0020] Working principle: In use, the base 1 is first formed by one-time casting. Then, the fixing platform 3 is snapped into the mounting groove 2 at the top of the base 1. Next, the fixing rod 11 and the casting ring pipe 7 are inserted into the inner wall of the mounting hole 5. Concrete grout is injected into the casting hole 4 through the casting port 13. Then, the concrete is left to set. Through the cooperation between the threaded groove 6 and the protruding rib 12, the tightness and stability of the secondary cast concrete, the fixing rod 11 and the base 1 are improved, thus improving the overall stability of the device. Then, the anchor bolts 10 are installed in the limiting hole 9. Through the cooperation between the anchor bolts 10 and the limiting hole 9, the fixing platform 3 and the base 1 are locked together, further improving the overall stability of the device.

[0021] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A precast pile foundation device for a splicable power tower, comprising a base (1), wherein the top of the base (1) is provided with an installation groove (2), characterized in that, It also includes casting components and fastening components disposed above the base (1); The casting assembly includes a fixed platform (3) that is snapped into the inner wall of the mounting groove (2). A pair of casting holes (4) are provided on the top of the base (1). A pair of mounting holes (5) that are adapted to the casting holes (4) are provided on the top of the fixed platform (3). A casting ring pipe (7) is inserted into the inner peripheral wall of each mounting hole (5). A casting port (13) is provided on both sides of the top of each casting ring pipe (7). A fixing rod (11) is inserted into one end of each casting ring pipe (7).

2. The precast pile foundation device for splicable power transmission towers according to claim 1, characterized in that, Each of the casting holes (4) has a threaded groove (6) at the bottom of its inner peripheral wall, and each of the fixing rods (11) has a protruding rib (12) fixedly connected to its outer peripheral wall.

3. The precast pile foundation device for splicable power transmission towers according to claim 2, characterized in that, Each of the protruding ribs (12) is spirally arranged along the outer peripheral wall of the fixed rod (11), and the cross section of each pouring port (13) gradually increases from top to bottom.

4. The precast pile foundation device for splicable power transmission towers according to claim 3, characterized in that, The fastening assembly includes a pair of fastening plates (8) that are respectively fixedly connected to the top of the outer peripheral wall of the casting ring pipe (7), and each of the fastening plates (8) has a limiting hole (9) at the corner.

5. The precast pile foundation device for splicable power transmission towers according to claim 4, characterized in that, Multiple limiting holes (9) are provided on the top of the fixed platform (3) near the mounting hole (5) and on the top of the base (1) near the pouring hole (4), and an anchor bolt (10) is inserted into one end of each limiting hole (9).

6. The precast pile foundation device for splicable power transmission towers according to claim 5, characterized in that, Each of the fixed rods (11) has multiple slots (14) at the top of its outer peripheral wall, and each of the casting ring pipes (7) has multiple locking blocks (15) that are compatible with the slots (14) fixedly connected to its inner peripheral wall.

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