CN216428248U

CN216428248U - Vibration immersed tube pile tip structure

Info

Publication number: CN216428248U
Application number: CN202123006523.1U
Authority: CN
Inventors: 李志浩; 李哲; 刘建军; 蒋树强; 李彬彬; 纪伟; 朱张英; 胡航; 孙贵平; 吕越洋
Original assignee: China State Construction Port Engineering Group Co Ltd
Current assignee: China State Construction Port Engineering Group Co Ltd
Priority date: 2021-12-01
Filing date: 2021-12-01
Publication date: 2022-05-03
Anticipated expiration: 2031-12-01

Abstract

The utility model relates to a vibration immersed tube pile tip structure, the key point of the technical scheme is that the vibration immersed tube pile tip structure comprises a pile tube and a boot tube fixed at the lower end of the pile tube, the lower end of the boot tube is provided with two inclined sinking planes which are obliquely crossed, the two inclined sinking planes are respectively provided with a movable sealing plate for sealing the lower end opening of the boot tube, a pair of mounting plates are fixed on the peripheral wall of the boot tube, an articulated shaft is arranged between the two mounting plates, and the two ends of the articulated shaft are respectively fixedly connected with the two mounting plates; a connecting sleeve is fixed at the end part of the movable sealing plate and is hinged with the hinge shaft around the axis of the hinge shaft; an impact blade is fixed at the lower part of the articulated shaft; the utility model discloses can reduce the resistance of sinking of stake pipe and the bending deformation phenomenon of its tip articulated shaft in the use.

Description

Vibration immersed tube pile tip structure

Technical Field

The utility model relates to a vibration immersed tube stake device technical field especially relates to a vibration immersed tube stake point structure.

Background

The vibration pipe sinking method is to sink the pipe into the soil by using a vibration pile hammer, then fill broken stone, sand and the like into the pipe, and then pull out the pipe to form the pile. The vibration pipe sinking method is suitable for construction on slightly dense and medium dense gravel soil foundations. In order to reduce the resistance of sinking of the pile pipe, a pile tip structure is usually provided, that is, two inclined planes of inclined rubber are arranged at the lower end of the pile pipe, and a movable sealing plate is arranged, when the pile pipe sinks, the lower end opening of the pile pipe is sealed, specifically, the invention can refer to the Chinese utility model patent application document with the authorization publication number of CN202450522U, and discloses a pile tip of the sinking pipe for a sand pile driver in a peat soil layer, which comprises a sinking pipe, a steel pipe and a movable plate, wherein the bottom end of the steel pipe is pointed, the steel pipe is arranged at the bottom end of the sinking pipe, and the movable plate is arranged at the chamfer of the steel pipe and seals the opening of the steel pipe; the diameter of the steel pipe is larger than that of the immersed tube; the two sides of the steel pipe are chamfered at an angle of 45 degrees.

In current stake point structure, movable sealing plate's articulated shaft is located the lowermost end of stake point structure, sinks the in-process at the stake pipe, and movable sealing plate's the articulated in-process that moves downwards receives great resistance, and then produces bending deformation easily, influences movable sealing plate's rotation function.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a vibration immersed tube stake point structure can reduce the resistance of sinking of stake pipe and the bending deformation phenomenon of its tip articulated shaft in the use.

The above technical purpose of the present invention can be achieved by the following technical solutions: a pile tip structure of a vibrating immersed tube pile comprises a pile tube and a shoe tube fixed at the lower end of the pile tube, wherein the lower end of the shoe tube is provided with two obliquely intersected sinking inclined planes, the two sinking inclined planes are respectively provided with a movable sealing plate for sealing an opening at the lower end of the shoe tube, a pair of mounting plates are fixed on the peripheral wall of the shoe tube, an articulated shaft is arranged between the two mounting plates, and two ends of the articulated shaft are respectively fixedly connected with the two mounting plates; a connecting sleeve is fixed at the end part of the movable sealing plate and is hinged with the hinge shaft around the axis of the hinge shaft; an impact blade is fixed to the lower portion of the hinge shaft.

Through above-mentioned technical scheme, through setting up the impact sword in the lower part of articulated shaft, and then when vibrating to the stake pipe and sink, the impact sword can strike the cutting to materials such as soil of articulated shaft lower part to can further reduce the resistance when the stake pipe sinks, and effectively reduce the impact of external object to the articulated shaft, reduce the deformation situation of articulated shaft, make movable sealing plate can normally rotate the use.

Preferably, the blade tip portion of the impact edge is provided with a circular arc portion.

Through above-mentioned technical scheme, be provided with the circular arc portion through the cutting edge part at the impact sword, and then reduce the stress concentration of the cutting edge part of impact sword, reduce the impact sword and take place the possibility that the breach broke when using.

Preferably, the lower end of the mounting plate is provided with a sharp corner part protruding downwards.

Through above-mentioned technical scheme, through the lower extreme at the mounting panel setting convex closed angle portion down, and then utilize closed angle portion on the mounting panel to assist and sink to the resistance that receives when can effectively reducing the mounting panel and sink.

Preferably, the outer peripheral surface of the lower end of the pile tube is provided with a connecting external thread, and the inner peripheral surface of the shoe tube is provided with a connecting internal thread matched with the connecting external thread.

Through the technical scheme, the boot pipe is installed at the lower end of the pile pipe through threaded connection, installation is convenient, and the boot pipe can be replaced conveniently and quickly.

Preferably, the outer edge of the upper end of the boot pipe is provided with a transition chamfer.

Through the technical scheme, the transition chamfer is arranged at the outer edge of the upper end of the shoe pipe, so that the resistance to the pile pipe during upward lifting can be effectively reduced.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.

Fig. 1 is a structural schematic diagram of a vibrating pile sinking tip structure.

Fig. 2 is a schematic structural diagram showing a connection relationship between a boot pipe and a pile pipe.

Fig. 3 is a schematic structural view showing a mounting manner of the movable sealing plate.

Fig. 4 is a schematic structural view showing a connection relationship of the movable sealing plate and the hinge shaft.

Wherein, 1, pile tube; 11. connecting external threads; 2. a boot tube; 21. connecting the internal threads; 22. sinking the inclined plane; 23. transition chamfering; 3. a movable sealing plate; 31. connecting sleeves; 4. mounting a plate; 41. a sharp corner portion; 5. hinging a shaft; 6. an impact blade; 61. an arc portion.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings. In which like parts are designated by like reference numerals. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "bottom" and "top," "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.

The embodiment is as follows:

a pile tip structure of a vibration immersed tube pile is disclosed, referring to fig. 1 and fig. 2, comprising a pile tube 1 and a shoe tube 2 fixed at the lower end of the pile tube 1. The outer peripheral surface of the lower end of the pile pipe 1 is provided with a connecting external thread 11, and the inner peripheral surface of the shoe pipe 2 is provided with a connecting internal thread 21 matched with the connecting external thread 11. The boot pipe 2 is fixedly arranged at the lower end of the pile pipe 1 through threaded connection, and then can be conveniently and quickly mounted and dismounted.

Referring to fig. 2 and 3, the lower end of shoe tube 2 is provided with two obliquely intersecting sunken inclined planes 22, which are symmetrically arranged about the central plane of pile tube 1. The two sinking slopes 22 are respectively provided with a movable sealing plate 3 for sealing the lower end opening of the boot tube 2.

Referring to fig. 3 and 4, a pair of mounting plates 4 is fixed on the circumferential wall of the boot tube 2, a hinge shaft 5 is provided between the two mounting plates 4, and both ends of the hinge shaft 5 are respectively fixedly connected with the two mounting plates 4. A connecting sleeve 31 is fixed at the end of the movable sealing plate 3, and the connecting sleeve 31 is hinged with the hinging shaft 5 around the axis of the hinging shaft 5. When the pile pipe 1 is lowered, the movable sealing plate 3 is rotated to close the opening at the lower end of the shoe pipe 2 by the movable sealing plate 3. When the pile pipe 1 sinks, the two sinking inclined planes 22 at the lower end of the pile pipe 1 are intersected into a sharp shape, so that the sinking resistance of the pile pipe 1 can be effectively reduced. When the pile pipe 1 sinks, the movable sealing plate 3 is pressed by foreign matters such as external soil and the like, and the opening of the boot pipe 2 is always kept in a sealing state. When the pile pipe 1 is lifted, the external pressure of the movable sealing plate 3 disappears, and the movable sealing plate 3 rotates to be opened under the action of concrete slurry in the pile pipe 1, so that the concrete slurry is discharged from the lower end opening of the shoe pipe 2.

Referring to fig. 3 and 4, the upper end outer edge of the boot 2 is provided with a transition chamfer 23. By arranging the transition chamfer 23 at the outer edge of the upper end of the shoe pipe 2, the resistance to the pile pipe 1 during lifting can be effectively reduced. The lower end of the mounting plate 4 is provided with a downwardly projecting sharp corner 41. The downward convex sharp corner 41 is arranged at the lower end of the mounting plate 4, and the sharp corner 41 on the mounting plate 4 is used for assisting sinking, so that the resistance received when the mounting plate 4 sinks can be effectively reduced.

Referring to fig. 3 and 4, an impact blade 6 is fixed to a lower portion of the hinge shaft 5. The tip portion of the impact edge 6 is provided with a circular arc portion 61. Through setting up impact sword 6 in the lower part of articulated shaft 5, and then when vibrating sinking to stake pipe 1, impact sword 6 can strike the cutting to materials such as soil of articulated shaft 5 lower part to can further reduce the resistance when stake pipe 1 sinks, and effectively reduce the impact of external object to articulated shaft 5, reduce articulated shaft 5's deformation situation, make movable sealing plate 3 can normal rotation use. By providing the arc portion 61 at the edge portion of the impact blade 6, the stress concentration at the edge portion of the impact blade 6 is reduced, and the possibility of the impact blade 6 being chipped during use is reduced.

Although some specific embodiments of the present invention have been described in detail by way of illustration, it should be understood by those skilled in the art that the above illustration is only for purposes of illustration and is not intended to limit the scope of the invention. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.

Claims

1. The utility model provides a vibration immersed tube stake point structure, includes stake pipe (1) and fixes boots pipe (2) at stake pipe (1) lower extreme, the lower extreme of boots pipe (2) is provided with two crossing inclined planes (22) that sink of slope, and two inclined planes (22) punishments that sink do not are provided with and are used for carrying out sealed movable sealing plate (3), its characterized in that to boots pipe (2) lower extreme opening: a pair of mounting plates (4) is fixed on the peripheral wall of the boot tube (2), a hinge shaft (5) is arranged between the two mounting plates (4), and two ends of the hinge shaft (5) are respectively fixedly connected with the two mounting plates (4); a connecting sleeve (31) is fixed at the end part of the movable sealing plate (3), and the connecting sleeve (31) is hinged with the hinged shaft (5) around the axis of the hinged shaft (5); an impact blade (6) is fixed at the lower part of the articulated shaft (5).

2. The pile tip structure of the vibrating immersed tube pile of claim 1, which is characterized in that: the blade tip part of the impact blade (6) is provided with an arc part (61).

3. The pile tip structure of the vibrating immersed tube pile of claim 1, which is characterized in that: the lower end of the mounting plate (4) is provided with a sharp corner part (41) protruding downwards.

4. The pile tip structure of the vibrating immersed tube pile of claim 1, which is characterized in that: the outer peripheral surface of the lower end of the pile pipe (1) is provided with a connecting external thread (11), and the inner peripheral surface of the shoe pipe (2) is provided with a connecting internal thread (21) matched with the connecting external thread (11).

5. The pile tip structure of the vibrating immersed tube pile according to claim 1, characterized in that: the outer edge of the upper end of the boot pipe (2) is provided with a transition chamfer (23).