Anti-pulling type concrete pipe pile

Abstract

The utility model discloses an anti -pull type concrete pipe pile relates to civil engineering technical field. The anti -pull type concrete pipe pile, including pipe pile body and unfolding mechanism, the bottom fixed mounting of pipe pile body has the conical casing, the inner side bottom of conical casing is hinged and is installed four sets of unfolding board, and the top of pipe pile body is provided with the installation casing, unfolding mechanism sets up on the conical casing, and unfolding mechanism is used for driving four sets of unfolding board to unfold, and unfolding mechanism includes screw rod, moving round plate, connecting rod, sliding block and slide, and the inner side bottom rotation of conical casing is installed with screw rod. Through the cooperation of screw rod, moving round plate, connecting rod, sliding block, slide and unfolding board, after sinking the pile, unfolding mechanism can drive unfolding board to unfold to increase the pile end stress area of this concrete pipe pile, and then can provide additional anti -pull resistance for concrete pipe pile, so that the anti -pull performance of concrete pipe pile improves.

Description

Technical Field

[0001] This utility model relates to the field of civil engineering technology, and in particular to a pull-out resistant concrete pipe pile. Background Technology

[0002] Chinese patent document CN217733986U discloses a pull-out resistant concrete pipe pile, including a pipe pile body, an end plate, connecting holes, a connecting sleeve, and a pile tip. The end plate has an annular groove on its periphery for one end of the connecting sleeve to be inserted and welded. Multiple positioning protrusions are evenly spaced along the periphery of the annular groove. The end of the connecting sleeve has a positioning groove for the positioning protrusions to be inserted. Reinforcing ribs are provided on the periphery of the end plate between adjacent connecting holes. The reinforcing ribs are L-shaped, with one side welded to the end plate and the other side welded to the inner wall of the connecting sleeve. The positioning protrusions and positioning groove limit the circumferential movement of the connecting sleeve on the end plate, preventing rotation along the periphery. The end of the connecting sleeve can then be welded into the annular groove. The reinforcing ribs further strengthen the connection between the connecting sleeve and the end plate, ultimately contributing to the stable encapsulation of the connecting sleeve on the end plate.

[0003] The aforementioned type of pull-out concrete pipe pile has a tapered alloy steel sleeve at the end. Although the tapered alloy steel sleeve can enhance the compressive strength and penetration ability of the pile end, it cannot form an effective end bearing area, and therefore cannot provide additional pull-out resistance for the concrete pipe pile, thus reducing the pull-out performance of the concrete pipe pile. Utility Model Content

[0004] The purpose of this utility model is to provide a pull-out resistant concrete pipe pile that can solve the problems mentioned above.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a pull-out resistant concrete pipe pile, comprising:

[0006] The pipe pile body has a conical shell fixedly installed at the bottom, and four sets of unfolding plates are hinged to the bottom inner side of the conical shell. An installation shell is set on the top of the pipe pile body.

[0007] The unfolding mechanism is mounted on the conical shell and is used to drive the four sets of unfolding plates to unfold.

[0008] Preferably, the unfolding mechanism includes a threaded rod, a movable circular plate, a connecting rod, a slider, and a slide block. The threaded rod is rotatably mounted on the inner bottom of the conical shell, and the movable circular plate is threadedly connected to the outer wall of the threaded rod. Four sets of connecting rods are hinged to the bottom of the movable circular plate, and a set of sliders is hinged to one end of each of the four sets of connecting rods. There are four sets of slide blocks, and each of the four sets of sliders is slidably mounted in one set of slide blocks.

[0009] Preferably, all four sets of sliding blocks are fixedly connected to a set of unfolding plates.

[0010] Preferably, a circular shell is fixedly installed on the top of the pipe pile body. Two sets of threaded short bars are threadedly connected to the outer wall of the shell. One end of each set of threaded short bars extends into the interior of the shell and is rotatably fitted with a set of snap-fit ​​blocks. A throttle is fixedly installed on the top of the shell, and a handle is fixedly installed on the other end of the threaded short bars.

[0011] Preferably, a spiral blade is fixedly installed on the outer wall of the pipe pile body.

[0012] Preferably, the top of the circular shell has a circular opening, and the outer wall of the threaded rod has two sets of snap-fit ​​grooves. Both sets of snap-fit ​​blocks are installed by snap-fitting the threaded rod through one set of snap-fit ​​grooves.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] (1) The pull-out type concrete pipe pile, through the coordinated use of threaded rod, movable circular plate, connecting rod, slider, sliding seat and unfolding plate, after the pile is driven, the unfolding mechanism can drive the unfolding plate to unfold, thereby increasing the force-bearing area of ​​the pile end of the concrete pipe pile, and thus providing additional pull-out resistance for the concrete pipe pile, thereby improving the pull-out performance of the concrete pipe pile.

[0015] (2) The pull-out resistant concrete pipe pile is installed by using the shell, threaded short bar, snap-fit ​​block and throttle in combination. The snap-fit ​​block and threaded bar are snap-fitted together, so that the operator can rotate the threaded bar by the throttle to drive the unfolding plate to unfold. After the unfolding plate is unfolded, the shell and related parts on it can be separated from the threaded bar, thereby avoiding interference from the shell and related parts on it during the subsequent pile embedding process, and ensuring the smooth progress of the pile embedding process. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0017] Figure 1 This is a front perspective view of the present invention;

[0018] Figure 2 This is a perspective view of the present invention, in sectional view.

[0019] Figure 3 This is an enlarged view of part A of the present invention;

[0020] Figure 4 This is a top perspective view of the unfolding mechanism of this utility model.

[0021] Reference numerals in the attached drawings: 1. Pipe pile body; 2. Circular shell; 3. Conical shell; 4. Unfolding mechanism; 401. Threaded rod; 402. Moving circular plate; 403. Connecting rod; 404. Slider; 405. Slide seat; 5. Unfolding plate; 6. Helical blade; 7. Mounting shell; 8. Threaded short bar; 9. Clamping block; 10. Turning handle. Detailed Implementation

[0022] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0023] Please see Figure 1-4 This utility model provides a technical solution: a pull-out resistant concrete pipe pile, including a pipe pile body 1 and an unfolding mechanism 4. A conical shell 3 is fixedly installed at the bottom of the pipe pile body 1. Four sets of unfolding plates 5 are hinged to the bottom inner side of the conical shell 3. An installation shell 7 is provided above the pipe pile body 1. The unfolding mechanism 4 is provided on the conical shell 3 and is used to drive the four sets of unfolding plates 5 to unfold.

[0024] The unfolding mechanism 4 includes a threaded rod 401, a movable circular plate 402, a connecting rod 403, a slider 404, and a sliding seat 405. The threaded rod 401 is rotatably installed on the inner bottom of the conical shell 3. The movable circular plate 402 is threadedly connected to the outer wall of the threaded rod 401. Four sets of connecting rods 403 are hinged to the bottom of the movable circular plate 402. One end of each of the four sets of connecting rods 403 is hinged to a set of sliders 404. There are four sets of sliding seats 405. The four sets of sliders 404 are slidably installed in one set of sliding seats 405. After the pile is driven, the unfolding mechanism 4 can drive the unfolding plate 5 to unfold, thereby increasing the force-bearing area of ​​the pile end of the concrete pipe pile, and thus providing additional pull-out resistance for the concrete pipe pile, thereby improving the pull-out performance of the concrete pipe pile.

[0025] All four sets of slides 405 are fixedly connected to one set of unfolding plates 5.

[0026] A circular shell 2 is fixedly installed on the top of the pipe pile body 1. Two sets of threaded short rods 8 are threadedly connected to the outer wall of the shell 7. One end of each set of threaded short rods 8 extends into the interior of the shell 7 and is rotatably fitted with a set of snap-fit ​​blocks 9. A throttle 10 is fixedly installed on the top of the shell 7, and a handle is fixedly installed on the other end of the threaded short rods 8. The operator can rotate the threaded rod 401 through the throttle 10 to drive the unfolding plate 5 to unfold. After the unfolding plate 5 is unfolded, the shell 7 and its related components can be separated from the threaded rod 401, thereby avoiding possible interference from the shell 7 and its related components during the subsequent pile embedding process and ensuring the smooth progress of the pile embedding process.

[0027] A spiral blade 6 is fixedly installed on the outer wall of the pipe pile body 1.

[0028] The top of the circular housing 2 has a circular opening, and the outer wall of the threaded rod 401 has two sets of snap-fit ​​grooves. Both sets of snap-fit ​​blocks 9 are installed by snap-fitting the threaded rod 401 through one set of snap-fit ​​grooves.

[0029] Working principle: When work is required, one end of the pile is buried and hammered into the concrete pipe pile using a hammering device. The installation housing 7 is fitted onto the unfolding mechanism 4. The threaded short bar 8 is rotated to engage the locking block 9 with the threaded rod 401. The handle 10 is rotated, which drives the threaded rod 401 to rotate. The rotation of the threaded rod 401 drives the moving circular plate 402 to move downward, which in turn drives the four sets of connecting rods 403 to move. The movement of the four sets of connecting rods 403 drives the four sets of sliders 404 to slide within the sliding seat 405, which in turn drives the four sets of unfolding plates 5 to unfold, increasing the stress area of ​​the concrete pipe pile and providing additional pull-out resistance. At this time, the two sets of threaded short bars 8 can be rotated to separate the two sets of locking blocks 9 from the threaded rod 401, allowing the installation housing 7 and its related components to be separated from the threaded rod 401.

[0030] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A type of pull-out resistant concrete pipe pile, characterized in that, include: Pipe pile body (1), a conical shell (3) is fixedly installed at the bottom of the pipe pile body (1), four sets of unfolding plates (5) are hinged to the bottom of the inner side of the conical shell (3), and an installation shell (7) is provided above the pipe pile body (1). The unfolding mechanism (4) is set on the conical shell (3) and is used to drive the four sets of unfolding plates (5) to unfold.

2. The pull-out resistant concrete pipe pile according to claim 1, characterized in that: The unfolding mechanism (4) includes a threaded rod (401), a movable circular plate (402), a connecting rod (403), a slider (404), and a slide block (405). The threaded rod (401) is rotatably installed on the bottom inner side of the conical shell (3). The movable circular plate (402) is threadedly connected to the outer wall of the threaded rod (401). Four sets of connecting rods (403) are hinged to the bottom of the movable circular plate (402). One end of each of the four sets of connecting rods (403) is hinged to a set of sliders (404). There are four sets of slide blocks (405). The four sets of sliders (404) are all slidably installed in one set of slide blocks (405).

3. The pull-out resistant concrete pipe pile according to claim 2, characterized in that: All four sets of slides (405) are fixedly connected to a set of unfolding plates (5).

4. The pull-out resistant concrete pipe pile according to claim 3, characterized in that: A circular shell (2) is fixedly installed on the top of the pipe pile body (1). Two sets of threaded short rods (8) are threadedly connected to the outer wall of the installation shell (7). One end of each set of threaded short rods (8) extends into the interior of the installation shell (7) and is rotatably installed with a set of snap-fit ​​blocks (9). A throttle (10) is fixedly installed on the top of the installation shell (7), and a handle is fixedly installed on the other end of the threaded short rods (8).

5. The pull-out resistant concrete pipe pile according to claim 4, characterized in that: The outer wall of the pipe pile body (1) is fixedly installed with a spiral blade (6).

6. The pull-out resistant concrete pipe pile according to claim 5, characterized in that: The top of the circular shell (2) is provided with a circular opening, and the outer wall of the threaded rod (401) is provided with two sets of snap-fit ​​grooves. Both sets of snap-fit ​​blocks (9) are installed by snap-fitting the threaded rod (401) through a set of snap-fit ​​grooves.

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