Building pile foundation with good anti-seismic effect

Abstract

The building pile foundation with the good anti-seismic effect comprises a pile body, a pile head is fixedly connected to the bottom end of the pile body, a grouting opening is formed in the side, away from the pile head, of the pile body, a connecting cylinder is arranged between the inner walls of the grouting opening, two side grooves are formed in the outer side of the pile body, the side grooves are communicated with the grouting opening, and the connecting cylinder is connected with the side grooves. And external expansion plates are slidably connected between the inner walls of the two side grooves, and a fixing assembly is arranged in the grouting opening and used for driving the two external expansion plates to move. The two external expansion plates are driven by the fixing assembly to expand towards the outside of the pile body, so that barbs or puncture structures on the outer sides of the two external expansion plates directly act on soil in a reserved hole, then cement is injected into the reserved hole through the grouting opening, the structure of the building foundation pile is firmer, and the construction efficiency is improved. Therefore, the shock resistance, the stability and the service life of the building pile foundation are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of building engineering construction, in particular to a building pile foundation with good earthquake resistance effect. Background Art

[0002] Construction engineering construction technology refers to the various technologies and methods used in the construction process. Among them, building piles, as an important component of construction engineering, play an important role in bearing structural loads, transferring loads, and preventing foundation settlement.

[0003] After searching, a Chinese patent discloses an earthquake-resistant building pile, and its authorization announcement number is (CN209397618U), which includes a pile cap, a pile foundation and a pile head, wherein the pile cap is provided with a support column with an external thread, and the pile foundation is provided with an internal threaded hole so that the pile foundation is threadedly connected to the support column; the end of the pile foundation away from the pile cap is a tapered portion, and the tapered portion is provided with a plurality of convergence grooves along the length direction of the pile foundation, and the outer side surface of the tapered portion is provided with a tapered external thread, and the pile head is provided with a tapered internal threaded hole so that the pile head is threadedly connected to the pile foundation.

[0004] This patent eliminates the connection gaps between the pile cap, the pile foundation and the pile head to reduce the possibility of the building piles loosening and falling apart during an earthquake, and has a good earthquake-resistant effect. Although the use of this patent can reduce the possibility of the building piles loosening and falling apart during an earthquake, in actual use, holes are usually drilled in the ground first, and then the foundation piles are driven into the pre-drilled holes. In order to ensure that the foundation piles and the holes can be tightly combined, the diameter of the holes generally needs to be slightly smaller than the diameter of the foundation piles. However, the outer side of the above-mentioned earthquake-resistant building piles is provided with barbs, which will increase the overall diameter of the foundation piles, making it more difficult to drive the foundation piles into the holes. At the same time, when the earthquake-resistant building piles enter the hole, the barbs around them may damage the soil structure where the hole is located, thereby affecting the firmness of the foundation piles during use. Utility Model Content

[0005] The purpose of the utility model is to provide a building pile foundation with good earthquake resistance effect to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a building pile foundation with good earthquake resistance, comprising a pile body, the bottom end of the pile body is fixedly connected to a pile head, a grouting port is provided on the side of the pile body away from the pile head, a connecting tube is provided between the inner walls of the grouting port, two side grooves are provided on the outer side of the pile body, the side grooves are communicated with the grouting port, an outer expansion plate is slidably connected between the inner walls of the two side grooves, a fixing component is provided inside the grouting port, and the fixing component is used to drive the two outer expansion plates to move.

[0007] As a further preferred embodiment of the present technical solution, the fixing assembly includes a transverse plate, which is fixedly connected between the inner walls of the grouting port, and the top of the transverse plate is fixedly connected to two fixing plates, and the two fixing plates are rotatably connected to threaded rods on the sides away from each other, and the outer sides of the threaded rods are threadedly connected to threaded barrels, and the threaded barrels are fixedly connected to the outer expansion plate on the side away from the fixing plates.

[0008] As a further preferred embodiment of the present technical solution, the outer sides of the two threaded rods are fixedly connected with driven bevel gears, the bottom of the connecting cylinder is rotatably connected with a driving bevel gear, and the driving bevel gear is meshed with the two driven bevel gears.

[0009] As a further preferred embodiment of the technical solution, one end of the connecting tube is rotatably connected to a cross screw head, and one end of the cross screw head extends to the interior of the grouting port and is fixedly connected to the active bevel gear.

[0010] As a further preferred embodiment of the present technical solution, it is characterized in that: a movable plate is fixedly connected to the outer sides of the two threaded cylinders, two limiting guide grooves are opened on the top of the horizontal plate, and one end of the movable plate extends to the interior of the limiting guide groove and is slidably connected to the inner wall of the limiting guide groove.

[0011] As a further preferred embodiment of the technical solution, two connecting plates are fixedly connected to the outer side of the connecting tube, and the sides of the two connecting plates away from the connecting tube are fixedly connected to the inner wall of the grouting port.

[0012] As a further preferred embodiment of the present technical solution, a barb or puncture structure is provided on the outer side of the outward expansion plate.

[0013] The utility model provides a building pile foundation with good earthquake resistance, which has the following beneficial effects:

[0014] (1) The utility model drives the two external expansion plates to expand toward the outside of the pile body through a fixed component, so that the barbs or piercing structures on the outer sides of the two external expansion plates directly act on the soil inside the reserved hole, thereby improving the seismic resistance and stability of the building pile foundation.

[0015] (2) After the installation of the building pile foundation is completed, cement is injected into the interior through the grouting port, making the structure of the pile foundation more solid, thereby improving its stability during use and increasing the service life of the pile foundation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0017] Figure 2 It is a schematic diagram of a half-section structure of the utility model;

[0018] Figure 3 It is a schematic diagram of the local structure of the pile body of the utility model;

[0019] Figure 4 For the utility model Figure 2 A schematic diagram of the enlarged structure at A in the middle;

[0020] In the figure: 1. pile body; 2. pile head; 3. grouting port; 4. connecting tube; 5. cross screw head; 6. external expansion plate; 7. connecting plate; 8. driven bevel gear; 9. driving bevel gear; 10. cross plate; 11. fixed plate; 12. threaded rod; 13. threaded tube; 14. limit guide groove; 15. movable plate; 16. side groove. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0022] The utility model provides a technical solution: Figure 1-Figure 4 As shown, in the present embodiment, a building pile foundation with good earthquake resistance effect comprises a pile body 1, the bottom end of the pile body 1 is fixedly connected with a pile head 2, a grouting port 3 is provided on the side of the pile body 1 away from the pile head 2, a connecting tube 4 is provided between the inner walls of the grouting port 3, two side grooves 16 are provided on the outer side of the pile body 1, the side grooves 16 are communicated with the grouting port 3, an outer expansion plate 6 is slidably connected between the inner walls of the two side grooves 16, a fixing component is provided inside the grouting port 3, the fixing component is used to drive the two outer expansion plates 6 to move, two connecting plates 7 are fixedly connected to the outer side of the connecting tube 4, the two connecting plates 7 are fixedly connected to the inner wall of the grouting port 3 on the side away from the connecting tube 4, and a barb or puncture structure is provided on the outer side of the outer expansion plate 6.

[0023] When using a building pile foundation, first a reserved hole is drilled at the location where the building pile foundation is to be placed, and then the building pile foundation is fixed in the reserved hole with the pile head 2 facing downward, and then the two external expansion plates 6 are driven by the fixing assembly to expand toward the outside of the building pile foundation, so that the barbs or puncture structures on the outside of the external expansion plates 6 contact the inner wall of the reserved hole and extend into the soil structure, thereby improving the earthquake resistance and stability of the building pile foundation during use. After the building pile foundation is placed, cement is introduced into the building pile foundation through the grouting port 3, making the structure of the foundation pile more solid and increasing the service life of the building foundation pile.

[0024] like Figure 1-Figure 4As shown, the fixing assembly includes a transverse plate 10, which is fixedly connected between the inner walls of the grouting port 3, and two fixing plates 11 are fixedly connected to the top of the transverse plate 10. The two fixing plates 11 are rotatably connected to the sides away from each other with threaded rods 12, and the outer sides of the threaded rods 12 are threadedly connected with threaded tubes 13, and the side of the threaded tube 13 away from the fixing plate 11 is fixedly connected to the outer expansion plate 6, and the outer sides of the two threaded rods 12 are fixedly connected with driven bevel gears 8, and the bottom of the connecting tube 4 is rotatably connected with an active bevel gear 9, and the active bevel gear 9 is meshed with the two driven bevel gears 8. One end of the connecting tube 4 is rotatably connected with a cross screw head 5, and one end of the cross screw head 5 extends to the inside of the grouting port 3 and is fixedly connected to the active bevel gear 9. The outer sides of the two threaded tubes 13 are fixedly connected with a moving plate 15, and two limiting guide grooves 14 are provided on the top of the transverse plate 10. One end of the moving plate 15 extends to the inside of the limiting guide groove 14 and is slidably connected to the inner wall of the limiting guide groove 14.

[0025] The construction worker uses an external tool to screw the cross screw head 5, so that the active bevel gear 9 rotates at the bottom of the connecting tube 4, so that the two driven bevel gears 8 meshing with it drive the threaded rods 12 connected to each other to rotate above the cross plate 10. Since the threaded tube 13 is meshingly connected with the outer side of the threaded rod 12, the threaded tube 13 pushes the outer expansion plate 6 to slide between the inner walls of the side groove 16 under the guidance of the moving plate 15 and the limiting guide groove 14, so as to facilitate the fixing of the building pile foundation in the reserved hole, thereby improving the earthquake resistance and stability of the building pile foundation.

[0026] The utility model provides a building pile foundation with good earthquake resistance effect. The specific working principle is as follows: when using the building pile foundation, first, a reserved hole is drilled at the location where the building pile foundation is installed, and then the building pile foundation is fixed in the reserved hole with the pile head 2 facing downward, and then the cross screw head 5 is screwed with an external tool to make the active bevel gear 9 rotate at the bottom of the connecting tube 4, so that the two driven bevel gears 8 meshing with it drive the threaded rods 12 connected to each other to rotate above the cross plate 10, because the threaded tube 13 is meshingly connected with the outer side of the threaded rod 12, so that the threaded tube 13 pushes the outer expansion plate 6 to slide between the inner walls of the side groove 16 under the cooperation and guidance of the moving plate 15 and the limiting guide groove 14, so that the two outer expansion plates 6 expand to the outside of the building pile foundation, and the barbs or puncture structures on the outer side of the moving outer expansion plate 6 will contact the inner wall of the reserved hole and extend to the inside of the soil structure. After the installation of the building pile foundation is completed, cement is introduced into the building pile foundation through the grouting port 3, so that the structure of the foundation pile is more solid.

[0027] Although the 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 building pile foundation with good earthquake resistance, comprising a pile body (1), characterized in that: The bottom end of the pile body (1) is fixedly connected to a pile head (2); a grouting port (3) is provided on a side of the pile body (1) away from the pile head (2); a connecting tube (4) is provided between the inner walls of the grouting port (3); two side grooves (16) are provided on the outer side of the pile body (1); the side grooves (16) are communicated with the grouting port (3); an outer expansion plate (6) is slidably connected between the inner walls of the two side grooves (16); a fixing component is provided inside the grouting port (3); the fixing component is used to drive the two outer expansion plates (6) to move.

2. A building pile foundation with good earthquake resistance according to claim 1, characterized in that: The fixing assembly comprises a transverse plate (10), wherein the transverse plate (10) is fixedly connected between the inner walls of the grouting port (3), and two fixing plates (11) are fixedly connected to the top of the transverse plate (10), and the two fixing plates (11) are rotatably connected to a threaded rod (12) on the sides away from each other, and the outer side of the threaded rod (12) is threadedly connected to a threaded barrel (13), and the side of the threaded barrel (13) away from the fixing plate (11) is fixedly connected to the outer expansion plate (6).

3. A building pile foundation with good earthquake resistance according to claim 2, characterized in that: The outer sides of the two threaded rods (12) are fixedly connected with driven bevel gears (8), the bottom of the connecting cylinder (4) is rotatably connected with a driving bevel gear (9), and the driving bevel gear (9) is meshed with the two driven bevel gears (8).

4. A building pile foundation with good earthquake resistance according to claim 3, characterized in that: One end of the connecting tube (4) is rotatably connected to a cross screw head (5), and one end of the cross screw head (5) extends to the interior of the grouting port (3) and is fixedly connected to the driving bevel gear (9).

5. A building pile foundation with good earthquake resistance according to claim 2, characterized in that: The outer sides of the two threaded cylinders (13) are fixedly connected with a movable plate (15), the top of the transverse plate (10) is provided with two limiting guide grooves (14), one end of the movable plate (15) extends into the interior of the limiting guide groove (14) and is slidably connected with the inner wall of the limiting guide groove (14).

6. A building pile foundation with good earthquake resistance according to claim 1, characterized in that: Two connecting plates (7) are fixedly connected to the outer side of the connecting tube (4), and the sides of the two connecting plates (7) away from the connecting tube (4) are fixedly connected to the inner wall of the grouting port (3).

7. A building pile foundation with good earthquake resistance according to claim 1, characterized in that: The outer side of the outer expansion plate (6) is provided with a barb or puncture structure.

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