CN217398216U

CN217398216U - Bored concrete pile steel reinforcement cage hoist device

Info

Publication number: CN217398216U
Application number: CN202220943690.4U
Authority: CN
Inventors: 孙志杰; 齐立国; 张佩良; 刘佳航; 周龙; 王家齐
Original assignee: Tianjin Port & Channel Engineering Co ltd; Caofeidian Xintian Lng Co ltd
Current assignee: Tianjin Port & Channel Engineering Co ltd; Caofeidian Xintian Lng Co ltd
Priority date: 2022-04-22
Filing date: 2022-04-22
Publication date: 2022-09-09
Anticipated expiration: 2032-04-22

Abstract

The utility model discloses a bored concrete pile steel reinforcement cage hoisting device, which is composed of two bored concrete pile steel reinforcement cage hoisting movable sleeves symmetrically arranged at two sides of the bored concrete pile steel reinforcement cage hoisting device; each cast-in-place pile reinforcement cage hoisting movable sleeve consists of a hollow sleeve, a sleeve pipe piece, a reinforcement rotating shaft and a steel wire rope; the reinforcing steel bar rotating shaft is inserted in the hollow sleeve in a mode of having an annular space gap, so that the hollow sleeve can freely rotate relative to the reinforcing steel bar rotating shaft; the end parts of the two ends of the reinforcing steel bar rotating shaft are positioned at the outer side of the hollow sleeve; the two sleeve pipe pieces are annular pieces which are sleeved and fixed on the end walls of the two ends of the hollow sleeve; the width of the annular sheet is larger than the outer diameter of the steel wire rope; the steel wire rope is encircled on the hollow sleeve; the cast-in-place pile reinforcement cage hoisting device is used for hoisting the cast-in-place pile reinforcement cage, so that the steel wire rope can be conveniently and quickly drawn out for recycling, the reinforcement cage and the pile hole cannot be damaged, the resource waste is reduced, and the pile forming quality can be further improved.

Description

Bored concrete pile steel reinforcement cage hoist device

Technical Field

The utility model relates to a pile foundation construction technical field, in particular to bored concrete pile steel reinforcement cage hoist device.

Background

The cast-in-place pile is a pile formed by forming holes in place and pouring concrete or reinforced concrete, and is widely applied to various buildings such as house buildings, bridges, municipal buildings and the like.

When a cast-in-place pile is constructed for some buildings and structures, the cast-in-place pile needs to be cast at a certain height below the ground, then a foundation above the cast-in-place pile is excavated or the open caisson construction is carried out, and after the cast-in-place pile reinforcement cage is hung to a pile hole, the top surface of the cast-in-place pile reinforcement cage is away from the ground by a certain distance.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a under the condition that does not damage steel reinforcement cage and hole, but convenient and fast pull out wire rope carries out bored concrete pile steel reinforcement cage hoist device that recycles.

Therefore, the utility model discloses technical scheme as follows:

a bored concrete pile steel reinforcement cage hoisting device is composed of two bored concrete pile steel reinforcement cage hoisting movable sleeves symmetrically arranged on two sides of the bored concrete pile steel reinforcement cage hoisting device; each cast-in-place pile reinforcement cage hoisting movable sleeve consists of a hollow sleeve, two sleeve pipe pieces, a reinforcement rotating shaft and a steel wire rope; the steel bar rotating shaft is inserted into the hollow sleeve in a mode of an annular space, so that the hollow sleeve can freely rotate relative to the steel bar rotating shaft; the end parts of the two ends of the reinforcing steel bar rotating shaft are positioned at the outer side of the hollow sleeve; the two sleeve pipe pieces are annular pieces which are sleeved and fixed on the end walls of the two ends of the hollow sleeve; the width of the annular sheet is larger than the outer diameter of the steel wire rope; the steel wire rope is encircled on the hollow sleeve.

Further, the axial length of the reinforcing steel bar rotating shaft is the same as the distance between two adjacent steel bar cage main bars on the filling pile steel bar cage.

Furthermore, the two ends of the steel bar rotating shaft of the cast-in-place pile steel reinforcement cage hoisting movable sleeve are respectively welded and fixed on two adjacent steel reinforcement cage main bars below the top layer steel bar of the cast-in-place pile steel reinforcement cage in a horizontal arrangement mode.

Compared with the prior art, after the cast-in-place pile reinforcement cage hoisting device is used for hoisting a cast-in-place pile reinforcement cage to an elevation position, the core sleeve can rotate around the reinforcement rotating shaft when the steel wire rope is pulled, the friction between the steel wire rope and the reinforcement cage and the pile hole is reduced, the reinforcement cage and the pile hole cannot be damaged, the steel wire rope can be conveniently and quickly pulled out for recycling, the resource waste is reduced, and the pile forming quality can be further improved.

Drawings

Fig. 1 is a schematic structural view of the hoisting device for a bored concrete pile steel reinforcement cage according to the present invention, when the bored concrete pile steel reinforcement cage is in a hoisting state;

FIG. 2 is an enlarged view of a portion of FIG. 1;

fig. 3 is a schematic structural view of the bored concrete pile reinforcement cage hoisting device of the present invention.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and specific embodiments, but the following embodiments are by no means limiting to the present invention.

As shown in fig. 1 to 3, the bored concrete pile cage hoisting device is composed of two bored concrete pile cage hoisting movable sleeves symmetrically arranged at two sides of the bored concrete pile cage hoisting device; wherein the content of the first and second substances,

each cast-in-place pile reinforcement cage hoisting movable sleeve is composed of a hollow sleeve 1, two sleeve pipe pieces 2, a reinforcement rotating shaft 3 and a steel wire rope 4; in particular, the amount of the solvent to be used,

the hollow sleeve 1 is a cylindrical barrel with openings at two ends; the steel wire rope 4 surrounds the hollow sleeve 1, and the length of the steel wire rope 4 corresponds to the hoisting length and requires the steel wire rope 4;

the reinforcing steel bar rotating shaft 3 is a cylindrical shaft body, the length of the reinforcing steel bar rotating shaft is greater than the axial length of the hollow sleeve 1, and the outer diameter of the reinforcing steel bar rotating shaft is smaller than the inner diameter of the hollow sleeve 1, so that the reinforcing steel bar rotating shaft 3 can penetrate into the inner cavity of the hollow sleeve 1 in a gap mode, the end parts of the two ends of the reinforcing steel bar rotating shaft 3 are positioned on the outer side of the hollow sleeve 1, and the hollow sleeve 1 can rotate relative to the reinforcing steel bar rotating shaft 3; the axial length of the steel bar rotating shaft 3 is the same as the distance between two adjacent steel bar cage main bars 5 on the cast-in-place pile steel bar cage;

the casing pipe piece 2 is a circular ring-shaped annular piece, the inner diameter of the casing pipe piece is matched with the outer diameter of the hollow casing pipe 1, so that the two casing pipe pieces 2 can be sleeved and fixed on the outer walls of the two ends of the hollow casing pipe 1; meanwhile, the width of the annular sheet (namely the difference between the outer diameter and the inner diameter of the annular sheet) is larger than the outer diameter of the steel wire rope, so that the sleeve pipe sheets 2 arranged on the end walls at the two ends of the hollow sleeve 1 can form a block for the steel wire rope 4 which surrounds the hollow sleeve 1, and the steel wire rope 4 is prevented from slipping off the hollow sleeve 1;

when hoisting the bored concrete pile reinforcement cage, welding and fixing two ends of a reinforcement rotating shaft 3 of each bored concrete pile reinforcement cage hoisting movable sleeve on two adjacent reinforcement cage main reinforcements 5 positioned below top-layer reinforcements 6 of the bored concrete pile reinforcement cage in a horizontal mode, and connecting the two ends of a steel wire rope 4 by shackle after bypassing the reinforcements 6; and after the two cast-in-place pile reinforcement cage hoisting movable sleeves are symmetrically fixed on the two sides of the cast-in-place pile reinforcement cage, subsequent hoisting operation can be carried out.

The process flow for hoisting the cast-in-place pile reinforcement cage by adopting the cast-in-place pile reinforcement cage hoisting device is as follows:

firstly, a pile hole 7 is drilled in a foundation 8, a filling pile reinforcement cage and a filling pile reinforcement cage hoisting device matched with the filling pile reinforcement cage are manufactured according to the size of the pile hole 7, and after the pile hole is manufactured, two filling pile reinforcement cage hoisting movable sleeves of the filling pile reinforcement cage hoisting device are symmetrically fixed at the designated positions on two sides of the filling pile reinforcement cage;

step two, respectively penetrating two steel wire ropes 4 through the hollow sleeve 1 and the top-layer steel reinforcement cage stirrup 6 on the cast-in-place pile steel reinforcement cage hoisting movable sleeve at the corresponding side, and further connecting the two ends of each steel wire rope together by using shackles;

step three, hoisting the steel wire rope 4 by a crane hook head to slowly hoist the cast-in-place pile reinforcement cage to the position above the pile hole 7, and then slowly lowering the steel wire rope to the position where the reinforcement cage is marked high;

step four, opening the steel wire rope 4 to break out and slowly pulling the steel wire rope 4, wherein the hollow sleeve 1 rotates along the steel bar rotating shaft 3 until the steel wire rope 4 is pulled out of the ground;

and fifthly, pouring concrete into the pile hole 7 to form the reinforced concrete cast-in-place pile.

It should be noted that the parts of the present invention not disclosed in detail belong to the known technology in the field; furthermore, while the foregoing has described certain illustrative embodiments of the invention in order to facilitate those skilled in the art in understanding the invention, it is to be understood that the invention is not limited to the precise embodiments disclosed, and that changes may be made, obvious to one skilled in the art, to the extent that certain changes may be made therein without departing from the spirit and scope of the invention as defined and limited by the appended claims.

Claims

1. A bored concrete pile steel reinforcement cage hoisting device is characterized by comprising two bored concrete pile steel reinforcement cage hoisting movable sleeves symmetrically arranged at two sides of the bored concrete pile steel reinforcement cage hoisting device; each cast-in-place pile reinforcement cage hoisting movable sleeve is composed of a hollow sleeve (1), two sleeve pipe pieces (2), a reinforcement rotating shaft (3) and a steel wire rope (4); the reinforcing steel bar rotating shaft (3) is inserted into the hollow sleeve (1) in a mode of an annular space, so that the hollow sleeve (1) can freely rotate relative to the reinforcing steel bar rotating shaft (3); the end parts of the two ends of the steel bar rotating shaft (3) are positioned at the outer side of the hollow sleeve (1); the two sleeve pipe pieces (2) are annular pieces, and are sleeved and fixed on the end walls of the two ends of the hollow sleeve (1); the width of the annular sheet is larger than the outer diameter of the steel wire rope; the steel wire rope (4) is wound on the hollow sleeve (1).

2. A bored pile cage hoisting device according to claim 1, wherein the axial length of the steel bar rotating shaft (3) is the same as the distance between two adjacent cage bars (5) on the bored pile cage.

3. A device for hoisting a pile cage according to claim 1, wherein the axis of rotation of the reinforcement (3) of the travelling sleeve is arranged horizontally so that its ends are welded to two adjacent cage bars (5) below the top reinforcement (6) of the pile cage.