CN218521772U

CN218521772U - Drilling pile casing of rotary digging pile

Info

Publication number: CN218521772U
Application number: CN202222625367.5U
Authority: CN
Inventors: 王枫; 蒋炯玮
Original assignee: Suzhou Fengshitang Engineering Technology Co ltd
Current assignee: Suzhou Fengshitang Engineering Technology Co ltd
Priority date: 2022-09-30
Filing date: 2022-09-30
Publication date: 2023-02-24
Anticipated expiration: 2032-09-30

Abstract

The utility model discloses a dig a drilling of stake soon and protect a section of thick bamboo, which comprises a body, the body is by multiunit interconnect's hollow structure's barrel, the top of barrel is equipped with the holding ring, and the bottom inner wall is equipped with the ring channel, be equipped with multiunit location sand grip and multiunit top installation screw on the holding ring, the bottom is equipped with multiunit constant head tank and multiunit bottom installation screw, its characterized in that: the top of each group of positioning convex strips is provided with a tapered hole, the tapered hole is of a structure with a small inside and a large outside, the axis of the tapered hole is flush with the top surface of each positioning convex strip, the lower half part of the tapered hole is arranged in each positioning convex strip, the upper half part of the tapered hole is arranged on the outer surface of each positioning ring, and the tapered hole is perpendicular to the outer surface of each positioning rod convex strip; and the top of each group of positioning grooves is provided with a positioning hole, and the positioning holes and the conical holes are coaxially arranged. The utility model discloses reduce the maintenance rate, prolonged life.

Description

Drilling pile casing of rotary digging pile

Technical Field

The utility model relates to a foundation engineering field especially relates to a dig a drilling of stake soon and protect a section of thick bamboo.

Background

The pile type constructed by the rotary drilling rig is fully called a rotary drilling cast-in-situ pile, and is called a rotary drilling pile for short in engineering. When the rotary digging pile is constructed, a pile casing is arranged at the pile opening, and a construction mode of a full casing is also provided. When the full casing construction is adopted, the full casing construction mode is generally adopted only under the conditions of pile breakage, mud clamping, necking, neck expansion and the like easily caused by soil. Wherein, when the construction of protecting a section of thick bamboo entirely, insert as a lesson protects a section of thick bamboo to after digging the stake, when connecting next a set of fender section of thick bamboo, can fix a position through sand grip and recess between two sets of fender sections of thick bamboo, then connect between with two sets of fender sections of thick bamboo through the bolt. However, the following problems are present in the connection process:

the size of the convex strip is slightly smaller than that of the groove, so that after the convex strip is in inserted fit with the groove, the screw hole of the upper protective barrel is not completely opposite to the screw hole of the lower protective barrel, namely the screw holes cannot be coaxial, and the rotary excavator is required to drive the upper protective barrel to rotate back and forth for alignment, but the rotation precision is not high and cannot be completely opposite to each other; after one or two screw holes are damaged, the damaged screw holes can be abandoned, when the subsequent protective barrel is pressed down, the part cannot be stressed, the stress of the connecting parts of other normally connected bolts and the protective barrel is larger, and the part with large stress is easy to deform and damage, so that the part of the protective barrel is easy to damage, the damaged part is not easy to maintain, or the maintenance difficulty is larger, and the service life of the protective barrel is influenced.

Disclosure of Invention

The utility model aims at providing a dig a drilling of stake soon and protect a section of thick bamboo through using this structure, has improved and has protected a butt joint convenience, reduces the wearing and tearing that protect a section of thick bamboo screw or bolt, reduces the maintenance rate, increase of service life.

In order to achieve the above purpose, the utility model adopts the technical scheme that: a drilling pile casing of a rotary drilling pile comprises a body, wherein the body is composed of a plurality of groups of mutually connected hollow cylinders, positioning rings extending upwards are arranged at the tops of the cylinders, annular grooves matched with the positioning rings of adjacent cylinders are formed in the inner walls of the bottoms of the cylinders, a plurality of groups of positioning convex strips are annularly and uniformly distributed on the outer surfaces of the bottoms of the positioning rings, a plurality of groups of positioning grooves are annularly and uniformly distributed at the bottoms of the cylinders and matched with the positioning convex strips, a plurality of groups of top mounting screw holes are annularly and uniformly distributed on the positioning rings, a plurality of groups of bottom mounting screw holes are annularly and uniformly distributed on the annular grooves, each group of top mounting screw holes is right opposite to one type of bottom mounting screw holes, the adjacent cylinders are connected through a plurality of groups of bolts, and each group of bolts are screwed in the corresponding top mounting screw holes and bottom mounting screw holes;

the top of each group of positioning convex strips is provided with a tapered hole, the tapered hole is of a structure with a small inside and a large outside, the axis of the tapered hole is flush with the top surface of each positioning convex strip, the lower half part of the tapered hole is arranged in each positioning convex strip, the upper half part of the tapered hole is arranged on the outer surface of each positioning ring, and the tapered hole is perpendicular to the outer surface of each positioning rod convex strip; and the top of each group of positioning grooves is provided with a positioning hole, and the positioning holes and the conical holes are coaxially arranged.

In the above technical scheme, the positioning hole is a tapered positioning hole, the tapered positioning hole is of a structure with a small inside and a large outside, and the diameter of the inner side of the tapered positioning hole is equal to the diameter of the outer side of the tapered hole.

In the technical scheme, the width of the positioning convex strip is smaller than that of the positioning groove; when the positioning hole is opposite to the conical hole, the top installation screw hole is opposite to the bottom installation screw hole.

In the technical scheme, the inner wall of the positioning ring is flush with the inner wall of the cylinder body, and the wall thickness of the positioning ring is smaller than that of the cylinder body; the outer surface of the top of the positioning ring is in contact with the inner wall of the annular groove of the barrel body above the positioning ring.

In the above technical solution, the height of the positioning ring is equal to the depth of the annular groove.

In the technical scheme, the length of the bolt is smaller than or equal to the wall thickness of the barrel, and the outer end of the bolt retracts into the bottom mounting screw hole.

Because of the application of the technical scheme, compared with the prior art, the utility model has the following advantages:

1. the utility model discloses in set up the bell mouth through locating sand grip department, set up the locating hole in locating groove department, utilize the setting of locating hole and bell mouth, can utilize the instrument to insert and fix a position in bell mouth and the locating hole, adjust the angle between the adjacent barrel, make the top installation screw of top barrel can just be to the bottom installation screw of below barrel, the bolt of being convenient for is connected adjacent barrel, thereby the condition that reduces strong spiro union appears, prevent to correspond the screw, smooth silk phenomenon appears in the bolt, guarantee that every screw all utilizes as far as possible, guarantee that the atress is even everywhere, reduce the maintenance rate, increase of service life.

Drawings

Fig. 1 is a schematic structural diagram of a first embodiment of the present invention;

fig. 2 is a schematic cross-sectional structural diagram in the first embodiment of the present invention.

Wherein: 1. a body; 2. a cylinder body; 3. a positioning ring; 4. an annular groove; 5. positioning the convex strip; 6. positioning a groove; 7. the top is provided with a screw hole; 8. the bottom is provided with a screw hole; 9. a bolt; 10. a tapered hole; 11. and (7) positioning the holes.

Detailed Description

The invention will be further described with reference to the following drawings and examples:

the first embodiment is as follows: referring to fig. 1 and 2, the drilling protective cylinder of the rotary excavating pile comprises a body 1, wherein the body is composed of a plurality of groups of cylinders 2 which are connected with each other and have a hollow structure, a positioning ring 3 which extends upwards is arranged at the top of each cylinder, an annular groove 4 which is matched with the positioning ring of the adjacent cylinder is arranged on the inner wall of the bottom of each cylinder, a plurality of groups of positioning convex strips 5 are annularly and uniformly distributed on the outer surface of the bottom of each positioning ring, a plurality of groups of positioning grooves 6 are annularly and uniformly distributed on the bottom of each cylinder and matched with the positioning convex strips, a plurality of groups of top mounting screw holes 7 are annularly and uniformly distributed on each positioning ring, a plurality of groups of bottom mounting screw holes 8 are annularly and uniformly distributed on each annular groove, each group of top mounting screw holes is over against one type of bottom mounting screw holes, the adjacent cylinders are connected through a plurality of groups of bolts 9, and each group of bolts is screwed in the corresponding top mounting screw holes and bottom mounting screw holes;

the top of each group of positioning convex strips is provided with a conical hole 10, the conical hole is of a structure with a small inside and a large outside, the axis of the conical hole is flush with the top surface of the positioning convex strip, the lower half part of the conical hole is arranged in the positioning convex strip, the upper half part of the conical hole is arranged on the outer surface of the positioning ring, and the conical hole is arranged perpendicular to the outer surface of the positioning rod convex strip; and the top of each group of positioning grooves is provided with a positioning hole 11, and the positioning holes and the conical holes are coaxially arranged.

The width of the positioning convex strip is smaller than that of the positioning groove; when the positioning hole is opposite to the conical hole, the top installation screw hole is opposite to the bottom installation screw hole.

In this embodiment, under the conventional condition, location sand grip and top installation screw still are used for with dig the stake machine soon and fix a position, dig the stake machine soon and pass through stop gear and top installation screw and connect, realize vertical spacing to can drive the barrel and reciprocate, through with the location sand grip location, realize circumference spacing, thereby drive the barrel and rotate. Wherein, when the pile is dug by adopting the full pile casing mode, a group of cylinders below are inserted into soil, and after the soil in the cylinders is dug away, the top of the cylinder is temporarily exposed outside the soil, then another group of cylinders are hoisted by a rotary pile, and then the other group of cylinders are directly inserted and matched through an annular groove and a positioning ring, and are positioned through a positioning convex strip and a positioning groove, so that the positioning ring is inserted into the positioning groove, in order to ensure the smooth insertion, the width of the positioning convex strip is slightly smaller than that of the positioning groove, so that the upper cylinder is directly inserted into the positioning ring of the lower cylinder through the annular groove, the positioning convex strip can be smoothly inserted into the positioning groove, but although two groups of sleeves are smoothly inserted, the top mounting screw hole and the bottom mounting screw hole are not completely aligned, and the rotary pile driver drives the cylinders to rotate back and forth, the angle adjustment is not particularly accurate, in the conventional mode, an operator can directly plug a bolt into a group of bottom mounting screw holes, then carry out bolt screwing, a guide is carried out through the head with a little bit smaller end of the bolt in the inner end, but in the process, the alignment is not accurate, and the bolt can not be used, thereby the bolt can not be easily damaged, and the bolt can not be used in the top mounting screw hole due to the situation that the bolt can be used, the bolt can be easily caused by the bolt can be relatively high intensity of the bolt corresponding to the bolt, the bolt mounting screw hole, and the bolt can not be used in the bolt can be used in the process, thereby, the bolt can not be easily caused by the phenomenon, especially when pulling up, the force is uneven, resulting in easy deformation or damage. Therefore, in this embodiment, through the setting of bell mouth and locating hole, after the location sand grip inserts in the constant head tank, operating personnel can adopt the instrument that has the cone head that matches with the bell mouth, insert in locating hole and the bell mouth, if both are not coaxial, give the instrument that takes the cone head thrust inwards, thereby promote the sleeve of top and do the deflection of certain angle, make locating hole and bell mouth coaxial, after locating hole and bell mouth are coaxial, top installation screw will be coaxial with bottom installation screw, at this in-process, by an operating personnel with the instrument keep inserting in the bell mouth earlier, another operating personnel will respectively two sets of bolts with correspond two sets of bottom installation screws and top installation screw and carry out the spiro union, just so can realize the quick prepositioning of two sets of barrels, follow-up reuse bolt carries out the spiro union to other installation screws, can prevent like this that the internal thread of installation screw and the external screw thread wearing and tearing of bolt and lead to the slide, the damage phenomenon, effectively reduce the maintenance rate, increase of service life, guarantee simultaneously that the atress is even. In addition, the bolt does not need to be screwed by an operator with great labor, and the labor intensity of the operator can be reduced.

Referring to fig. 1 and 2, the positioning hole is a tapered positioning hole, the tapered positioning hole is of a structure with a small inside and a large outside, and the diameter of the inner side of the tapered positioning hole is equal to the diameter of the outer side of the tapered hole. The conical positioning hole is flush with the inner wall of the conical hole to form a large conical hole, so that the positioning hole and the conical hole can be coaxially adjusted and positioned when a tool with a conical head is inserted into the positioning hole and the conical hole in the follow-up process.

Referring to fig. 1 and 2, the inner wall of the positioning ring is flush with the inner wall of the cylinder, and the wall thickness of the positioning ring is smaller than that of the cylinder; the outer surface of the top of the positioning ring is in contact with the inner wall of the annular groove of the barrel body above the positioning ring. The height of the positioning ring is equal to the depth of the annular groove.

The setting of holding ring and ring channel for the location of pegging graft fast of two sets of barrels utilizes the bolt to connect two sets of adjacent barrels simultaneously, and, make the inner wall of two sets of adjacent barrels flush, the outer wall also flushes, and the barrel inner wall and the barrel outer wall that protect a section of thick bamboo entirely that constitute like this can not have unevenness, guarantee the stability of protection, also guarantee the smooth and easy nature of drilling.

The length of the bolt is smaller than or equal to the wall thickness of the barrel, and the outer end of the bolt retracts into the bottom mounting screw hole. Can prevent like this that the bolt from exposing in the outside and the inside of barrel, not expose in the outside of barrel, when the barrel is impressed soil like this, guarantee its smooth and easy nature of impressing, can not cause the hindrance, also can not lead to the damage of bolt owing to rub with soil. The pile digging device is not exposed in the barrel, the smoothness of pile digging is guaranteed, the pile digging device cannot be touched with a rotary pile digging machine, damage to a rotary drilling rig and a bolt cannot be caused, and deformation of the bolt is prevented from causing barrel deformation or damage.

Claims

1. A drilling pile casing of a rotary excavating pile comprises a body, wherein the body is composed of a plurality of groups of mutually connected cylinders with a hollow structure, the top of each cylinder is provided with an upward extending positioning ring, the inner wall of the bottom of each cylinder is provided with an annular groove matched with the positioning ring of the adjacent cylinder, the outer surface of the bottom of each positioning ring is annularly and uniformly provided with a plurality of groups of positioning convex strips, the bottom of each cylinder is annularly and uniformly provided with a plurality of groups of positioning grooves matched with the positioning convex strips, the positioning ring is annularly and uniformly provided with a plurality of groups of top mounting screw holes, the annular groove is annularly and uniformly provided with a plurality of groups of bottom mounting screw holes, each group of top mounting screw holes is right opposite to one type of bottom mounting screw holes, the adjacent cylinders are connected through a plurality of groups of bolts, and each group of bolts are screwed in the corresponding top mounting screw holes and the bottom mounting screw holes; the method is characterized in that:

the top of each group of positioning convex strips is provided with a tapered hole, the tapered hole is of a structure with a small inside and a large outside, the axis of the tapered hole is flush with the top surface of the positioning convex strip, the lower half part of the tapered hole is arranged in the positioning convex strip, the upper half part of the tapered hole is arranged on the outer surface of the positioning ring, and the tapered hole is arranged perpendicular to the outer surface corresponding to the positioning convex strip; and the top of each group of positioning grooves is provided with a positioning hole, and the positioning holes and the conical holes are coaxially arranged.

2. The drilling pile casing of the rotary digging pile according to claim 1, characterized in that: the positioning hole is a conical positioning hole which is of a structure with a small inner part and a large outer part, and the diameter of the inner side of the conical positioning hole is equal to the diameter of the outer side of the conical hole.

3. The drilling pile casing of the rotary digging pile according to claim 1, characterized in that: the width of the positioning convex strip is smaller than that of the positioning groove; when the positioning hole is opposite to the conical hole, the top installation screw hole is opposite to the bottom installation screw hole.

4. The drilling pile casing of the rotary digging pile according to claim 1, characterized in that: the inner wall of the positioning ring is flush with the inner wall of the barrel, and the wall thickness of the positioning ring is smaller than that of the barrel; the top outer surface of the positioning ring is in contact with the inner wall of the annular groove of the barrel above the positioning ring.

5. The drilling pile casing of the rotary digging pile according to claim 4, characterized in that: the height of the positioning ring is equal to the depth of the annular groove.

6. The drilling pile casing of the rotary digging pile according to claim 1, characterized in that: the length of the bolt is smaller than or equal to the wall thickness of the barrel, and the outer end of the bolt retracts into the bottom mounting screw hole.