CN210975798U

CN210975798U - Bored concrete pile construction of drilling is dug soon to easy extraction protects a section of thick bamboo

Info

Publication number: CN210975798U
Application number: CN201921987974.8U
Authority: CN
Inventors: 辛然
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-11-18
Filing date: 2019-11-18
Publication date: 2020-07-10
Anticipated expiration: 2029-11-18

Abstract

The utility model relates to an easily-pulled bored concrete pile construction pile casing drilled by rotary digging, which comprises a casing body, wherein a limiting plate is fixedly arranged at the top end of the casing body, a first slide block is fixedly arranged on the outer wall of the upper part of the casing body in an annular manner, the first slide block is far away from one end of the casing body in an annular manner and is fixedly connected with a second slide block, a base is arranged below the limiting plate, one side of the base far away from the limiting plate is provided with a plurality of fixing holes in an annular symmetrical manner, one side of the base far away from the limiting plate is provided with a plurality of lifting lug mounting grooves in an annular symmetrical manner, one side of the base near the casing body is provided with a slide groove in an annular manner, the first slide block and the second slide block are both positioned in the slide groove, the top end and the bottom end of the second slide block are respectively in smooth conflict, the protective cylinder is convenient to lift.

Description

Bored concrete pile construction of drilling is dug soon to easy extraction protects a section of thick bamboo

Technical Field

The utility model relates to an easily extract bored concrete pile construction of digging drilling soon and protect a section of thick bamboo belongs to and protects a technical field.

Background

In the construction of the cast-in-place pile, the pile casing can stabilize the hole wall, prevent the hole from collapsing, and can also isolate surface water, a guide drill bit and fix the pile position. In order to improve the reutilization rate of the pile casing and reduce the construction cost, the pile casing needs to be pulled out after the concrete pouring is finished and before the concrete is initially set.

The side friction resistance of the internal concrete and the peripheral soil body to the steel casing is required to be overcome in the lifting process, and the lifting modes commonly used in the construction site are mainly two types: direct lifting and vibration hammer lifting.

The direct extraction, namely extracting the casing out of the drill hole along the axial direction of the drill hole by using extraction mechanical equipment, obviously the extraction force must be greater than the peripheral frictional resistance of the casing, and the method has the following problems: 1) the lifting force is large, so large-scale hoisting and lifting machinery or special equipment is needed; 2) the downward pressure of the lifting machinery or equipment to the earth surface is large, so that the risk of earth surface subsidence is increased and the stability of the hole wall of the drilled hole is even influenced; 3) the construction conditions of the pile foundations of special projects such as power transmission lines and the like are severe, and large-scale equipment is limited and cannot enter a field to complete lifting work.

The vibration hammer is connected between the protective cylinder and the lifting equipment, and when the vibration hammer works, the protective cylinder generates small vertical vibration up and down to force the soil around the protective cylinder to liquefy and displace, thereby reducing the side friction resistance. The problems of the method are that: 1) the applicability to non-sticky soil with high water content is better, and the effect on soil layers under other conditions is poorer; 2) noise pollution is generated to the surrounding environment; 3) when the drag reduction and lifting effect of the vibration hammer is not ideal, various problems encountered by direct lifting as described above occur.

Therefore, a new technical scheme is needed to be provided to solve the problem that the difficulty in lifting the pile casing after the bored concrete pile is formed into a hole is high.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem who solves overcomes current defect, provides an easily extract bored concrete pile construction of digging the drilling soon and protects a section of thick bamboo, can effectively solve the problem in the background art.

In order to solve the technical problem, the utility model provides a following technical scheme:

a bored concrete pile construction pile casing easy to extract, dig and drill holes in a rotary manner comprises a casing body, a limiting plate is fixedly arranged at the top end of the casing body, a first slide block is fixedly arranged on the outer wall of the upper portion of the casing body in an annular manner, a second slide block is fixedly connected to one end, far away from the casing body, of the first slide block in an annular manner, a base is arranged below the limiting plate, a plurality of fixing holes are symmetrically and annularly arranged on one side, far away from the limiting plate, of the base in an annular manner, a plurality of lifting lug mounting grooves are symmetrically and annularly arranged on one side, far away from the limiting plate, of the base in an annular manner, a slide groove is annularly and closely arranged on one side, close to the casing body, of the first slide block and the second slide block are both positioned in the slide groove, the top end and the bottom, one side, far away from the fixed hole, of the rolling bearing I is in rolling connection with one side, adjacent to the sliding block, of the sliding block I, the top end and the bottom end of the sliding block I are respectively provided with the rolling bearing II in a rolling mode, and one end, far away from the sliding block I, of the rolling bearing II is fixedly connected with the inner wall of one side, adjacent to the sliding groove, of the sliding block I.

Furthermore, a plurality of pulling blocks are fixedly arranged on the limiting plate, and pulling holes are formed in the pulling blocks in a penetrating mode.

Furthermore, a through hole matched with the casing body is formed in the top end of the limiting plate in a penetrating mode.

Further, the base rotates the cover and establishes protect the upper portion of a body, the top of base with the bottom of limiting plate is smooth to be contradicted.

Furthermore, fixing steel nails penetrate through the fixing holes.

Furthermore, lifting lugs are fixedly arranged in the lifting lug mounting grooves in a rotating mode.

The utility model discloses a technological effect and advantage:

1. the utility model discloses a base and limiting plate have been set up, when needing to protect a section of thick bamboo body to carry out, through fixing the stay cord in the stay cord this moment, then use the instrument to drag and draw the stay cord for draw the piece to rotate, thereby drive the limiting plate and rotate on the base, thereby drive and protect a section of thick bamboo body to rotate, protect a section of thick bamboo body at this moment and drive slider one and slider two and rotate in the spout, thereby make and protect a peripheral frictional resistance of body, conveniently carry and draw;

2. the utility model discloses simple structure, convenient to use can effectually reduce and protect a peripheral frictional resistance, and the convenience is carried out the promotion to protecting a section of thick bamboo.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.

Fig. 1 is a front view of the present invention.

Fig. 2 is a front view of the casing body of the present invention.

Fig. 3 is a plan view of the present invention.

Reference numbers in the figures: 1. a casing body; 2. a limiting plate; 3. a first sliding block; 4. a second sliding block; 5. a base; 6. a fixing hole; 7. a lifting lug mounting groove; 8. a chute; 9. a first rolling bearing; 10. a second rolling bearing; 11. pulling the block; 12. hole drawing; 13. a through hole; 14. and (5) fixing the steel nail.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

As shown in figures 1-3, an easily-pulled bored concrete pile construction pile casing capable of rotary drilling comprises a casing body 1, a limiting plate 2 is fixedly arranged at the top end of the casing body 1, a first slider 3 is fixedly arranged on the outer wall of the upper portion of the casing body 1 in an annular manner, a second slider 4 is fixedly connected to one end, far away from the casing body 1, of the first slider 3 in an annular manner, a base 5 is arranged below the limiting plate 2, a plurality of fixing holes 6 are symmetrically and penetratingly arranged on one side, far away from the limiting plate 2, of the base 5, a plurality of lifting lug mounting grooves 7 are symmetrically and annularly arranged on one side, far away from the limiting plate 2, of the base 5, a sliding groove 8 is annularly and arranged on one side, close to the casing body 1, of the first slider 3 and the second slider 4 are both positioned in the sliding groove 8, the top end and the bottom end of the second slider 4 are, one side that fixed orifices 6 was kept away from to antifriction bearing 9 is connected with the adjacent one side roll of slider two 4, and the top and the bottom of slider one 3 all roll and are equipped with antifriction bearing two 10, and the one end that slider one 3 was kept away from to antifriction bearing two 10 all with the inner wall fixed connection of the adjacent one side of spout 8.

As shown in fig. 1-3, a plurality of pull blocks 11 are fixedly arranged on the limiting plate 2 of this embodiment, pull holes 12 are formed in the pull blocks 11 in a penetrating manner, through holes 13 matched with the protective cylinder body 1 are formed in the top end of the limiting plate 2 in a penetrating manner, the base 5 is rotatably sleeved on the upper portion of the protective cylinder body 1, the top end of the base 5 is in smooth conflict with the bottom end of the limiting plate 2, the pull blocks 11 are arranged, when the protective cylinder is required to be taken out, the pull blocks 11 can be pulled by using pull ropes, the limiting plate 2 can be rotated on the base 5, the protective cylinder body 1 is driven to rotate, and the friction of the protective cylinder body 1 is reduced during lifting.

As shown in fig. 1-3, all run through in the fixed orifices 6 of this embodiment and be equipped with fixed steel nail 14, all rotate the fixed lug that is equipped with in the lug mounting groove 7, fix base 5 in suitable position through fixed steel nail 14, prevent in the use, protect a body 1 and appear rocking, through fixing the lug in lug fixed slot 7, conveniently carry out to protecting a body 1 and carry.

For the convenience of understanding the technical solution of the present invention, the following detailed description is made on the working principle or the operation mode of the present invention in the practical process.

The utility model discloses the theory of operation: when the pile casing body 1 needs to be lifted out, the pull rope is fixed in the pull hole 12 at the moment, then the pull rope is pulled by using a tool, so that the pull block 11 rotates, the limiting plate 2 is driven to rotate on the base 5, the pile casing body 1 is driven to rotate, the pile casing body 1 drives the first slider 3 and the second slider 4 to rotate in the chute 8 at the moment, when the pile casing body 1 is loosened, the pull rope is taken down at the moment, the fixing steel nail 14 is taken out, then the lifting lug is fixed in the lifting lug mounting groove 7, then the pull rope is fixed on the lifting lug, at the moment, the lifting lug is pulled by equipment to drive the base 5 to move upwards, so that the limiting plate 2 is driven by the base 5 to move upwards, the limiting plate 2 drives the pile casing body 1 to move upwards, and thus the lifting of the pile casing is finished, the utility model has simple structure and convenient use, and can effectively reduce the, the protective cylinder is convenient to lift.

The above is the preferred embodiment of the present invention, and the technical personnel in the field of the present invention can also change and modify the above embodiment, therefore, the present invention is not limited to the above specific embodiment, and any obvious improvement, replacement or modification made by the technical personnel in the field on the basis of the present invention all belong to the protection scope of the present invention.

Claims

1. The utility model provides an easily extract bored concrete pile construction of digging a drilling soon and protect a section of thick bamboo, includes and protects a body (1), its characterized in that: the top end of the pile casing body (1) is fixedly provided with a limiting plate (2), the upper outer wall of the pile casing body (1) is annularly and fixedly provided with a first sliding block (3), one end of the first sliding block (3), which is far away from the pile casing body (1), is annularly and fixedly connected with a second sliding block (4), a base (5) is arranged below the limiting plate (2), one side of the base (5), which is far away from the limiting plate (2), is annularly and symmetrically provided with a plurality of fixing holes (6), one side of the base (5), which is far away from the limiting plate (2), is annularly and symmetrically provided with a plurality of lifting lug mounting grooves (7), one side of the base (5), which is close to the pile casing body (1), is annularly and provided with a sliding groove (8), the first sliding block (3) and the second sliding block (4) are both positioned in the sliding groove (8), and the top end and the bottom end of the second, keep away from spout (8) it is fixed on one side inner wall of a section of thick bamboo body (1) to be equipped with antifriction bearing (9), antifriction bearing (9) are kept away from one side of fixed orifices (6) with one side roll connection that slider two (4) are adjacent, the top and the bottom of slider one (3) all roll and are equipped with antifriction bearing two (10), keep away from antifriction bearing two (10 the one end of slider one (3) all with the inner wall fixed connection of the adjacent one side of spout (8).

2. The bored concrete pile construction pile casing easy to pull out of the rotary drilling hole according to claim 1, characterized in that: the limiting plate (2) is fixedly provided with a plurality of pulling blocks (11), and pulling holes (12) are formed in the pulling blocks (11) in a penetrating mode.

3. The bored concrete pile construction pile casing easy to pull out of the rotary drilling hole according to claim 1, characterized in that: the top end of the limiting plate (2) is provided with a through hole (13) matched with the casing body (1) in a penetrating way.

4. The bored concrete pile construction pile casing easy to pull out of the rotary drilling hole according to claim 1, characterized in that: the base (5) is rotatably sleeved on the upper portion of the pile casing body (1), and the top end of the base (5) is in smooth collision with the bottom end of the limiting plate (2).

5. The bored concrete pile construction pile casing easy to pull out of the rotary drilling hole according to claim 1, characterized in that: and fixing steel nails (14) penetrate through the fixing holes (6).

6. The bored concrete pile construction pile casing easy to pull out of the rotary drilling hole according to claim 1, characterized in that: lifting lugs are fixedly arranged in the lifting lug mounting grooves (7) in a rotating mode.