CN207260151U - Drill bit is pulled out in a kind of rotation of the long casing of rotary drilling rig pulling bored concrete pile - Google Patents
Drill bit is pulled out in a kind of rotation of the long casing of rotary drilling rig pulling bored concrete pile Download PDFInfo
- Publication number
- CN207260151U CN207260151U CN201721044789.6U CN201721044789U CN207260151U CN 207260151 U CN207260151 U CN 207260151U CN 201721044789 U CN201721044789 U CN 201721044789U CN 207260151 U CN207260151 U CN 207260151U
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- casing
- steel cylinder
- long casing
- rotation
- drill bit
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Abstract
It the utility model is related to a kind of rotation of the long casing of rotary drilling rig pulling bored concrete pile and pull out drill bit.Structure includes steel cylinder, steel cylinder outside diameter is slightly less than long casing internal diameter, the circular steel plate that binds is welded with the top of steel cylinder, bind the square card slot being welded with steel plate for connecting drilling machine drilling rod, square symmetrical two cell walls of card slot are equipped with pin hole, for connecting the square toes of borer drill rod bottom, steel cylinder following side is arranged with pin hole, for connecting long casing.When rotation pulls out casing, this, which rises, pulls out the steel cylinder of drill bit and is inserted into long casing, steel cylinder is connected fixation with long casing by axis pin, borer drill rod square toes are connected with square card slot, then the rotation using drilling machine and enhanced feature, casing is promoted to certain altitude, is afterwards extracted remaining casing with crawler crane.Avoid risen with vibration hammer pull out casing and crawler crane directly hang pull out casing caused by quality and security risk.
Description
Technical field
A kind of long protective casing lifting drill bit of bored concrete pile is the utility model is related to, long casing in constructing for rotary digging drilling hole bored concrete pile
Rise pull out, belong to architectural furniture.
Background technology
Rotary digging drilling hole bored concrete pile wide adaptability, is adapted to construct in various formation conditions, and stake is long, stake footpath range of choice is big, single
Pile bearing capacity is high, and cost is low, and construction noise is small, is particluarly suitable for the urban district construction of building dense, speed of application is fast, construction precision
Height, is easily managed, therefore rotary digging drilling hole bored concrete pile is widely used in construction.Applied in rotary digging drilling hole bored concrete pile
In work, when stratum complicated condition, in order to overcome geological state complexity to be influenced caused by construction quality progress, protected frequently with long
The mode of cylinder is constructed, and the length of long casing is generally more than 3000mm.But long casing rises after the completion of filling pile construction
Pull out extremely difficult, long protective casing lifting is carried out to pile crown there are hidden danger of quality using vibration hammer, pulling casing is directly hung with crawler crane
Equally exist some potential safety problems.For this reason, develop a kind of safety, the long casing rotation of massless hidden danger pulls out drill bit for long casing
The construction important in inhibiting of rotary digging drilling hole bored concrete pile.
The content of the invention
The purpose of this utility model is to be directed to the problem of long casing rotary digging drilling hole bored concrete pile protective casing lifting is difficult, there is provided a kind of
Long protective casing lifting drill bit simple in structure, easy to construction, ensures construction quality and safety.
What the purpose of this utility model was realized in.Drill bit is pulled out in a kind of rotation of the long casing of rotary drilling rig pulling bored concrete pile,
Structure includes cylindrical steel cylinder, and steel cylinder outside diameter determines that steel cylinder outside diameter is than long casing according to pouring pile hole duration casing internal diameter
Internal diameter is smaller, and circle is welded with the top of steel cylinder and is bound steel plate, is welded with the steel plate that binds for connecting the square of drilling machine drilling rod
Card slot, square card slot is provided with pin hole on symmetrical two cell walls, for connecting the square toes of borer drill rod bottom, steel cylinder following side
Barrel is equipped with the pin hole for being used for connecting long casing.When rotation pulls out casing, the steel cylinder which pulls out drill bit is inserted into long casing,
Steel cylinder is connected fixation, the square toes and envelope of borer drill rod bottom with long casing by steel cylinder following side with the side wall of long casing by axis pin
Square card slot at the top of the steel plate of top is connected by axis pin, then the rotation using drilling machine and enhanced feature, and long casing is promoted and is arrived
Certain altitude, is afterwards extracted remaining long casing with crawler crane.Casing and crawler crane are pulled out so as to avoid being risen with vibration hammer
Directly hang quality and security risk caused by pulling out casing.
Pin hole is equipped with same section symmetric position on the barrel of steel cylinder following side, is fixed easy to steel cylinder and long casing.
What the utility model obtained has the beneficial effect that：Its is simple in structure, easy for construction, solves and is carried out using vibration hammer
Long protective casing lifting directly hangs quality and security risk existing for pulling casing using crawler crane.
Brief description of the drawings
Fig. 1 is the structure diagram of the utility model.
Fig. 2 is the top view of Fig. 1.
Fig. 3 is the A-A ' profiles of Fig. 2.
Fig. 4 is the B-B ' profiles of Fig. 2.
The implication that figure label represents is as follows：
1st, steel cylinder 2, axis pin 3, square card slot 4, pin hole 5, triangular steel plate 6, circle bind steel plate 7, long casing.
Embodiment
The utility model is further described below in conjunction with the accompanying drawings.
Referring to shown in Fig. 1, Fig. 2, Fig. 3, Fig. 4, drill bit, cylindrical shape are pulled out in a kind of rotation of the long casing of rotary drilling rig pulling bored concrete pile
1 lower ending opening of steel cylinder, upper end closed, outside diameter are slightly less than the internal diameter of long casing 7, and the top of steel cylinder 1 is welded with circle and binds steel plate 6,
6 centre position of steel plate is welded with square card slot 3, and square card slot 3 is bound steel plate by four blocks of triangular reinforced steel plates 5 and envelope circle
6 fix, and 1 lower end of steel cylinder is inserted into long casing 7, and pin hole is equipped with same section symmetric position on 1 following side barrel of steel cylinder, long
The barrel of casing 7 is equally provided with and the matched pin hole of pin hole on 1 following side barrel of steel cylinder.Using axis pin 2 through steel cylinder 1 with
Steel cylinder 1 is connected fixation with casing 7 by the pin hole on long 7 barrel of casing, and square card slot 3 is provided with pin hole on symmetrical two cell walls
4, the square toes of borer drill rod bottom are connected with the square card slot at the top of the steel plate that binds by axis pin, so as to fulfill drilling machine and the drill bit
Connection.
Claims (2)
1. drill bit, including cylindrical steel cylinder are pulled out in a kind of rotation of the long casing of rotary drilling rig pulling bored concrete pile（1）, it is characterised in that steel cylinder
（1）Outside diameter be slightly less than long casing（7）Internal diameter, steel cylinder（1）Top is welded with circle and binds steel plate（6）, weld on the steel plate that binds
It is connected to the square card slot for connecting drilling machine drilling rod（3）, square card slot（3）It is provided with and is used on symmetrical two cell walls
Connect the pin hole of borer drill rod bottom square toes（4）, steel cylinder（1）Following side barrel is equipped with the pin hole for being used for connecting long casing.
2. drill bit is pulled out in the rotation of the long casing of rotary drilling rig pulling bored concrete pile according to claim 1, it is characterised in that steel cylinder（1）
Bottom end opening, top closure, steel cylinder（1）The pin hole for connecting long casing is arranged with the barrel of following side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721044789.6U CN207260151U (en) | 2017-08-21 | 2017-08-21 | Drill bit is pulled out in a kind of rotation of the long casing of rotary drilling rig pulling bored concrete pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721044789.6U CN207260151U (en) | 2017-08-21 | 2017-08-21 | Drill bit is pulled out in a kind of rotation of the long casing of rotary drilling rig pulling bored concrete pile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207260151U true CN207260151U (en) | 2018-04-20 |
Family
ID=61925946
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721044789.6U Expired - Fee Related CN207260151U (en) | 2017-08-21 | 2017-08-21 | Drill bit is pulled out in a kind of rotation of the long casing of rotary drilling rig pulling bored concrete pile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207260151U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108867643A (en) * | 2018-06-06 | 2018-11-23 | 中交二公局第工程有限公司 | Ultra-long pile base concrete casing method for pulling out |
| CN111236214A (en) * | 2020-01-18 | 2020-06-05 | 深圳市穿山甲工程技术有限公司 | Construction method for constructing secant pile by lengthening protective cylinder of rotary drilling rig |
| CN111335310A (en) * | 2020-04-07 | 2020-06-26 | 中国建筑第四工程局有限公司 | Bored concrete pile extension protects a structure |
-
2017
- 2017-08-21 CN CN201721044789.6U patent/CN207260151U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108867643A (en) * | 2018-06-06 | 2018-11-23 | 中交二公局第工程有限公司 | Ultra-long pile base concrete casing method for pulling out |
| CN111236214A (en) * | 2020-01-18 | 2020-06-05 | 深圳市穿山甲工程技术有限公司 | Construction method for constructing secant pile by lengthening protective cylinder of rotary drilling rig |
| CN111335310A (en) * | 2020-04-07 | 2020-06-26 | 中国建筑第四工程局有限公司 | Bored concrete pile extension protects a structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180420 Termination date: 20200821 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |