CN207393121U - A kind of cast-in-situ bored pile bottom expanding drill - Google Patents
A kind of cast-in-situ bored pile bottom expanding drill Download PDFInfo
- Publication number
- CN207393121U CN207393121U CN201721458815.XU CN201721458815U CN207393121U CN 207393121 U CN207393121 U CN 207393121U CN 201721458815 U CN201721458815 U CN 201721458815U CN 207393121 U CN207393121 U CN 207393121U
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- bucket
- chassis
- cast
- connecting rod
- soil
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Abstract
The utility model discloses a kind of cast-in-situ bored pile bottom expanding drills, including connector, axostylus axostyle is fixedly connected with below connector, wellbore part is connected with below connector, axostylus axostyle passes through wellbore part, wellbore part bottom is provided with chassis, and chassis is fixedly connected with wellbore part, and connecting rod and bottom bucket are disposed with below chassis, connecting rod one end is connected with chassis, the connecting rod other end is connected with bottom bucket, and axostylus axostyle is abutted through chassis with bottom bucket bottom, and bottom bucket can be expanded from inside to outside；The utility model, it is reasonable in design, it is convenient and practical, have and collect the soil expanded by the cooperation of chassis and spiral blade, soil is taken out of when whole device is packed up, cost-effective effect is not required.
Description
Technical field
The utility model is related to technical field of building construction field, more particularly to a kind of cast-in-situ bored pile bottom expanding drill.
Background technology
Building is more big higher, structure dead weight it is bigger, it is necessary to carrying live load it is also more, contingent occurs
Possibility also increases.General ground can not carry such weight certainly, and building if there is significantly sedimentation or becomes
Shape is not both met then using needs, dangerous yet.Therefore, it is necessary to the bearing capacity of ground is improved using various technologies.
In fact, not being singly high building, all buildings are required for handling ground when building.Because natural
Ground may include the soil layer that sandy soil, mud, miscellaneous fill etc. are not much bearing capacity, it is also possible to because each several part ingredient is different,
Bearing capacity is different and causes differential settlement.Simply for the building of small-scale, the processing method of ground is fairly simple, main
It can be realized by mitigating structural weight per square meter, increasing foundation's bottom area, the intensification modes such as embedded depth of foundation or compacting foundation soil.And
Such processing is just far from much of that for huge heavy skyscraper, and piling is exactly a kind of main side of consolidated subsoil
Formula.
There are many kinds of types for the pile foundation of building.From the point of view of material and form of construction work, they are segmented into bored concrete pile and prefabricated
Two classes of stake, the former is poured into concrete in the stake holes hole dug in advance on ground, and to be solidified to form pile foundation, the latter is straight
The stake of prefabrication good wood, steel or armored concrete is connected on, to scene by hammering, vibrating and the machine powers such as static pressure are squeezed into
In soil.
Bored under-reamed filling pile is a kind of new construction method of comparison, it is to a kind of improvement of cast-in-situ bored pile and wound
Newly.It, which is reached using drilling after required supporting course, uses special drill instead at stake end by stake end enlarged-diameter, then the limit of stake
Bearing capacity ratio does not have the ultimate bearing capacity of the bored concrete pile of enlarged footing to have growth by a relatively large margin, and theoretically the ultimate bearing capacity of stake is
There is no 4 times of the ultimate bearing capacity of the stake of enlarged footing.The deficiency of other pile-type, remarkable in economical benefits can be made up.
Bored under-reamed filling pile is a kind of improvement to cast-in-situ bored pile, by this new construction technology of base expanding and base expanding, stake
Bearing capacity is greatly enhanced, and all kinds of excellent soil layers and weathered rock formation can be made full use of to be applicable in as enlarged footing supporting course
In complex geologic conditions, the situation of constructional difficulties.In this construction method, it is important to focus on enlarged footing bellout diameter whether
Reach design requirement.
According to the bellout diameter of actual demands of engineering, definite corresponding base expanding and base expanding stroke is tested on ground.Bottom expanding drill enters hole
Before, integral strength inspection is first carried out, whether freely to stretch, after under bottom expanding drill to bottom hole, row is installed on kelly
Journey limiter, to determine bellout diameter.When local and kelly scale reaches limiter position, bottom hole drill bit is also expanded to
Twice of respective diameters, the stake end of bored under-reamed filling pile are also finished with regard to construction.
Application No. CN201320188560.5, authorized announcement date disclose one for the Chinese patent on November 06th, 2013
Kind of cast-in-situ bored pile bottom expanding drill, including axostylus axostyle, connecting rod, chassis and at least two teams' knife bar；Wherein, knife bar includes the base expanding and base expanding wing and adds
Press the wing；Connecting rod includes upper connecting rod and lower link；Upper connecting rod and lower link are by adjusting pin connection；Axostylus axostyle is connected to the upper connecting rod
Between brill connector；The upper end of the pressurization wing and the top of upper connecting rod connect, and the lower end for the wing that pressurizes passes through pin with the upper end of the base expanding and base expanding wing
Axis connection, the lower end of the base expanding and base expanding wing and the lower end of lower link are connected with chassis；The cast-in-situ bored pile that documents provide expands ground drill bit,
The base expanding and base expanding pile driving construction in piles with different footpath is not only applicable to, and the selection of stake specification is flexible, it is often more important that in house City Regions, more
Its advantage can be played.
Cast-in-situ bored pile bottom expanding drill in currently available technology is in reaming, it is impossible to timely clear up the soil under expanding
It goes out, it is necessary to using Pump breath countercirculate borehole cleaning, and then adds cost.
Utility model content
The purpose of this utility model is to provide a kind of cast-in-situ bored pile bottom expanding drill, which solves the soil under expanding in reaming
The problem of cannot clearing up, has and collects the soil expanded by the cooperation of chassis and spiral blade, entirely filling
It puts and takes soil out of when packing up, cost-effective effect.
The above-mentioned technical purpose of the utility model technical scheme is that：
A kind of cast-in-situ bored pile bottom expanding drill including connector, is fixedly connected with axostylus axostyle, connector lower section below connector
Wellbore part is connected with, axostylus axostyle passes through wellbore part, and wellbore part bottom is provided with chassis, and chassis is fixed with wellbore part to be connected
It connects, connecting rod and bottom bucket is disposed with below chassis, connecting rod one end is hinged with chassis, and the connecting rod other end connects with bottom bucket
It connects, axostylus axostyle is abutted through chassis with bottom bucket bottom, and bottom bucket can be expanded from inside to outside.
Using above-mentioned technical proposal, bottom bucket is connected on chassis so that synchronously to even when wellbore part pressurizes still further below
Extension bar pressurizes, and connecting rod pressurizes to bottom bucket, and bottom bucket opening is abutted on the soil of stake holes wall, and reaming is carried out in wellbore part
When, expand the soil to get off and just drop into bottom bucket, after component reaming hole to be drilled, whole device is collapsed, take out entire
During device, soil is taken out of together and is cleaned up.
Further preferably：Connecting rod is bolted with bottom bucket.
Using above-mentioned technical proposal, after whole device has worked, operating personnel back out bolt, by bottom bucket from whole device
It removes, the soil in bottom bucket is outwelled, then bottom bucket is bolted in whole device.
Further preferably：Connecting rod sets three.
Using above-mentioned technical proposal, connecting rod sets three, and when work forms a triangle so that wellbore part is the bottom of to
It is more firm during bucket pressurization.
Further preferably：Spiral blade is provided on axostylus axostyle.
Using above-mentioned technical proposal, whole device expands that the soil to get off is more and more in reaming, and the soil in bottom bucket is more long-pending
It is more, it is rotated by the spiral blade on axostylus axostyle and rotates to soil on rotating vane, further collect soil, axostylus axostyle and electricity
Machine connects, and motor is mounted on wellbore part, and since spiral blade needs to collect soil, the rotary speed of axostylus axostyle cannot be too
Height reduces the centrifugal force of axostylus axostyle rotation, ensures that soil can be screwed on spiral blade, therefore, the rotation of axostylus axostyle and bore portion
The rotation driving of part is not same.
Further preferably：Bottom bucket includes side wall and bottom, and the side wall is connected with bottom, and the side wall is by elastic material
It is made.
Using above-mentioned technical proposal, bottom bucket side wall realizes that side wall is expansible and collapsible using rubber, when collecting soil,
It is pressurizeed and opened by connecting rod so that bottom bucket is connected on the soil of stake holes wall, is to the greatest extent to greatest extent collected soil, no
It can miss, it is necessary to collapse after whole device has worked, collapse by side wall to one pulling force of side wall by connecting rod.
Further preferably：The shape of bottom bucket expansion is in truncated cone-shaped.
Using above-mentioned technical proposal, bottom bucket is in truncated cone-shaped when working and opening, and upper opening collects bore portion to greatest extent
The soil that part bores, base diameter shortening accumulate soil as far as possible so that the spiral blade on axostylus axostyle collects soil.
Further preferably：Bottom bucket bottom is provided with support member, and the support member is fixedly connected with bottom bucket bottom.
Using above-mentioned technical proposal, whole device at work, first supports the bottom that bottom bucket is put into stake holes with stake holes
It connects, due to the bottom out-of-flatness of stake holes, bottom bucket places injustice, causes to be collected when collecting soil completely, therefore, at bottom bucket bottom
Portion is installed by support member so that bottom bucket is more steady, and then it is more complete to collect soil.
Further preferably：There are three support member is set, the support member is evenly distributed on bottom bucket bottom.
Using above-mentioned technical proposal, the support member of bottom is installed three, forms a triangle so that support member
Support bottom bucket more firm.
In conclusion the utility model has the advantages that：
The utility model, it is reasonable in design, it is convenient and practical, there is the soil that will expand to pass through chassis and helical form leaf
The cooperation of piece collects, and takes soil out of when whole device is packed up, and cost-effective effect is not required.
Description of the drawings
Fig. 1 is the expansion dimensional structure diagram of the present embodiment whole equipment, illustrates the working condition of whole equipment；
Fig. 2 is the gathering dimensional structure diagram of the present embodiment whole equipment, illustrates the state that bottom bucket is packed up；
Fig. 3 is the sectional view of the present embodiment whole equipment, illustrates the working condition of whole equipment reaming in stake holes；
Fig. 4 is the sectional view of the present embodiment stake holes and reaming, illustrates the stake holes after whole equipment reaming.
In figure, 1, connector；2nd, axostylus axostyle；3rd, wellbore part；4th, chassis；5th, connecting rod；6th, bottom bucket；7th, bolt；8th, spiral
Shape blade；9th, support member；10th, stake holes；11 reamings；601st, side wall；602nd, bottom.
Specific embodiment
The utility model is described in further detail below in conjunction with attached drawing.
This specific embodiment is only explanation to the utility model, is not the limitation to the utility model, ability
Field technique personnel can as needed make the present embodiment the modification of no creative contribution after this specification is read, but
As long as within the protection scope of the present utility model all protected be subject to Patent Law.
As depicted in figs. 1 and 2, a kind of cast-in-situ bored pile bottom expanding drill, including connector 1,1 lower section of connector is fixedly connected
There is axostylus axostyle 2,1 lower section of connector is connected with wellbore part 3, and axostylus axostyle 2 passes through wellbore part 3, and 3 bottom of wellbore part is provided with chassis
4, chassis 4 is fixedly connected with wellbore part 3, and 4 lower section of chassis is disposed with connecting rod 5 and bottom bucket 6,5 one end of connecting rod and bottom
Disk 4 is hinged, and 5 other end of connecting rod is connected with bottom bucket 6, and axostylus axostyle 2 is abutted through chassis 4 with 6 bottom of bottom bucket, and bottom bucket 6 can be from introversion
Outer expansion.
In use, bottom bucket 6 is connected on chassis 4 so that synchronously to connection when wellbore part 3 pressurizes still further below
Bar 5 pressurizes, and connecting rod 5 pressurizes to bottom bucket 6, and the opening of bottom bucket 6 is abutted on the soil of hole wall, and reaming is carried out in wellbore part 3
When, expand the soil to get off and just drop into bottom bucket 6, after 3 reaming of component hole to be drilled, whole device is collapsed, take out
During whole device, soil is taken out of together and is cleaned up.
As depicted in figs. 1 and 2, connecting rod 5 is connected with bottom bucket 6 by bolt 7.
In use, after whole device has worked, operating personnel back out bolt 7, and bottom bucket 6 is taken from whole device
Under, the soil in bottom bucket 6 is outwelled, then bottom bucket 6 is fixed on by bolt 7 in whole device.
As depicted in figs. 1 and 2, connecting rod 5 sets three.
In use, connecting rod 5 sets three, and a triangle is formed during work so that wellbore part 3 gives bottom bucket
It is more firm during 6 pressurization.
As depicted in figs. 1 and 2, it is provided with spiral blade 8 on axostylus axostyle 2.
In use, whole device is in reaming, expands that the soil to get off is more and more, the soil in bottom bucket 6 it is more long-pending more
It is more, it is rotated by the spiral blade on axostylus axostyle 2 and rotates to soil on rotating vane, further collect soil, axostylus axostyle 2 and electricity
Machine connects, and motor is mounted on wellbore part 3, and since spiral blade 8 needs to collect soil, the rotary speed of axostylus axostyle 2 cannot
It is too high, the centrifugal force that axostylus axostyle 2 rotates is reduced, ensures that soil can be screwed on spiral blade 8, therefore, the rotation of axostylus axostyle 2 and brill
The rotation driving of hole portion part 3 is not same.
Bottom bucket 6 includes side wall 601 and bottom 602, and side wall 601 is connected with bottom 602, and side wall 601 is made of elastic material.
In use, 6 side wall of bottom bucket realizes that side wall 601 is expansible and collapsible using rubber, when collecting soil,
It is pressurizeed and opened by connecting rod 5 so that bottom bucket 6 is connected on the soil of 10 wall of stake holes, is to the greatest extent to greatest extent gathered up soil
Come, will not miss, it is necessary to collapse after whole device has worked, received side wall 601 to 601 1 pulling force of side wall by connecting rod 5
Hold together.
As shown in figures 1 and 3, the shape that bottom bucket 6 is unfolded is in truncated cone-shaped.
In use, bottom bucket 6 is in truncated cone-shaped when working and opening, and upper opening collects wellbore part 3 to greatest extent
The soil bored, base diameter shortening accumulate soil as far as possible so that the spiral blade 8 on axostylus axostyle 2 collects soil.
As shown in Figure 1, Figure 2 and Figure 3,6 bottom of bottom bucket is provided with support member 9, and support member 9 is fixed with 6 bottom of bottom bucket
Connection.
In use, whole device at work, first supports the bottom that bottom bucket 6 is put into stake holes 10 with stake holes 10
It connects, due to the bottom out-of-flatness of stake holes 10, bottom bucket 6 places injustice, causes to be collected when collecting soil completely, therefore, the bottom of at
6 bottoms of bucket installation support member 9 so that bottom bucket 6 is more steady, and then it is more complete to collect soil.
As shown in Figure 1, there are three the settings of support member 9, support member 9 is evenly distributed on 6 bottom of bottom bucket.
In use, the support member 9 of bottom is installed three, forms a triangle so that support member 9
It is more firm to support bottom bucket 6.
As shown in figure 4, after whole device is taken out stake holes 10, the state of reaming 11, the shape of reaming 11 can pass through tune
Section wellbore part 3 is adjusted, and adjusts the shape that the rotating arm adjusting reaming 11 of wellbore part 3 is adjusted in the axis pin on wellbore part 3
Shape.
The utility model, it is reasonable in design, it is convenient and practical, there is the soil that will expand to pass through chassis 4 and helical form
The cooperation of blade 8 collects, and takes soil out of when whole device is packed up, and cost-effective effect is not required.
Claims (8)
1. including connector (1), axostylus axostyle is fixedly connected with below the connector (1) for a kind of cast-in-situ bored pile bottom expanding drill
(2), wellbore part (3) is connected with below the connector (1), the axostylus axostyle (2) passes through wellbore part (3), it is characterised in that：
Wellbore part (3) bottom is provided with chassis (4), and the chassis (4) is fixedly connected with wellbore part (3), the chassis (4)
Lower section is disposed with connecting rod (5) and bottom bucket (6), and described connecting rod (5) one end is hinged with chassis (4), the connecting rod (5)
The other end is connected with bottom bucket (6), and the axostylus axostyle (2) abuts through chassis (4) with bottom bucket (6) bottom, and the bottom bucket (6) can be in
It expands outwardly.
2. a kind of cast-in-situ bored pile bottom expanding drill according to claim 1, it is characterised in that：The connecting rod (5) and bottom
Bucket (6) is connected by bolt (7).
3. a kind of cast-in-situ bored pile bottom expanding drill according to claim 2, it is characterised in that：The connecting rod (5) is set
Three.
4. a kind of cast-in-situ bored pile bottom expanding drill according to claim 3, it is characterised in that：It is set on the axostylus axostyle (2)
There is spiral blade (8).
5. a kind of cast-in-situ bored pile bottom expanding drill according to claim 4, it is characterised in that：The bottom bucket (6) includes side
Wall (601) and bottom (602), the side wall (601) are connected with bottom (602), and the side wall (601) is made of elastic material.
6. a kind of cast-in-situ bored pile bottom expanding drill according to claim 5, it is characterised in that：Bottom bucket (6) expansion
Shape is in truncated cone-shaped.
7. a kind of cast-in-situ bored pile bottom expanding drill according to claim 6, it is characterised in that：Bottom bucket (6) bottom is set
Support member (9) is equipped with, the support member (9) is fixedly connected with bottom bucket (6) bottom.
8. a kind of cast-in-situ bored pile bottom expanding drill according to claim 7, it is characterised in that：The support member (9) sets
There are three putting, the support member (9) is evenly distributed on bottom bucket (6) bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721458815.XU CN207393121U (en) | 2017-11-04 | 2017-11-04 | A kind of cast-in-situ bored pile bottom expanding drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721458815.XU CN207393121U (en) | 2017-11-04 | 2017-11-04 | A kind of cast-in-situ bored pile bottom expanding drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207393121U true CN207393121U (en) | 2018-05-22 |
Family
ID=62324630
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721458815.XU Expired - Fee Related CN207393121U (en) | 2017-11-04 | 2017-11-04 | A kind of cast-in-situ bored pile bottom expanding drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207393121U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109973008A (en) * | 2019-05-06 | 2019-07-05 | 北京林业大学 | Plant seedlings diameter changing drilling tool space development mechanism in rock |
| CN112240168A (en) * | 2020-10-15 | 2021-01-19 | 西安乔木科技技术有限公司 | Guide drill rod of horizontal directional drilling machine and construction method thereof |
| RU220595U1 (en) * | 2023-02-03 | 2023-09-25 | Федеральное государственное казенное военное образовательное учреждение высшего образования "Военная академия материально-технического обеспечения имени генерала армии А.В. Хрулёва" Министерства обороны Российской Федерации | Container for collecting soil from a well when drilling it |
-
2017
- 2017-11-04 CN CN201721458815.XU patent/CN207393121U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109973008A (en) * | 2019-05-06 | 2019-07-05 | 北京林业大学 | Plant seedlings diameter changing drilling tool space development mechanism in rock |
| CN112240168A (en) * | 2020-10-15 | 2021-01-19 | 西安乔木科技技术有限公司 | Guide drill rod of horizontal directional drilling machine and construction method thereof |
| CN112240168B (en) * | 2020-10-15 | 2022-06-28 | 西安乔木科技技术有限公司 | Guide drill rod of horizontal directional drilling machine and construction method thereof |
| RU220595U1 (en) * | 2023-02-03 | 2023-09-25 | Федеральное государственное казенное военное образовательное учреждение высшего образования "Военная академия материально-технического обеспечения имени генерала армии А.В. Хрулёва" Министерства обороны Российской Федерации | Container for collecting soil from a well when drilling it |
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Legal Events
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180522 Termination date: 20211104 |
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| CF01 | Termination of patent right due to non-payment of annual fee |