CN201753446U - Improved bored pile steel tube strong joint device - Google Patents
Improved bored pile steel tube strong joint device Download PDFInfo
- Publication number
- CN201753446U CN201753446U CN2010202616674U CN201020261667U CN201753446U CN 201753446 U CN201753446 U CN 201753446U CN 2010202616674 U CN2010202616674 U CN 2010202616674U CN 201020261667 U CN201020261667 U CN 201020261667U CN 201753446 U CN201753446 U CN 201753446U
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- steel pipe
- positioning sleeve
- screw
- improved
- steel tube
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Abstract
The utility model discloses an improved bored pile steel tube strong joint device, which mainly comprises an upper steel tube, a lower steel tube and screws. An inner spigot surface of 50-200mm is processed on the lower end opening of the upper steel tube; an outer spigot surface of 50-200mm is processed on the upper end opening of the lower steel tube; the inner spigot surface matches with the outer spigot surface; 1-2 rings are arranged on the inner spigot surface and the outer spigot surface in a matching manner; 4-20 conical holes and corresponding threaded holes are arranged on each ring; bosses are reserved outside the threaded holes; and the inner spigot surface and the outer spigot surface are positioned by the aid of a plurality of positioning sleeves with inner and outer tapers and then fixed by the tapered screws. As the positioning sleeves with the inner and outer tapers mainly bear pulling force and torsion force and the tapered screws mainly function in compression, stronger pulling force and torsion force can be borne by a larger number of the mounted positioning sleeves. The improved bored concrete pile steel tube strong joint device is convenient in operation and can be repeatedly used.
Description
Technical field
The utility model relates to the coupling device, particularly a kind of powerful piecing devices of large-section in-situ concrete pile steel pipe that can bear high pulling torque.
Background technology
In the building pile foundation construction or in the foundation construction of offshore platform, often need that large diameter steel pipe is inserted the stratum and make steel pipe pile usefulness, because insertion depth is big, can reach tens meters or darker, the steel pipe length of standard is very short, has only several meters or tens meters, needs many steel pipes to couple together, just can reach the length that needs, the method for use welding connects usually.For the steel pipe pile that does not need to pull up, it is feasible doing like this.But for the steel pipe pore-creating filling pile construction, the steel pipe under inserting must be pulled out from underground in segmentation, and construction is trouble very.With general conventional connected mode, because of powerful pulling capacity and torsion often can not bear, dismounting is also very inconvenient simultaneously.Chinese patent discloses the powerful piecing devices (200920289685.0) of a kind of large diameter steel pipe, it is with coupling place suit, be fixed with a plurality of screws, because tube wall is very thin, the part that is threaded is too short, screw directly holds can't stand powerful pulling capacity and torsion, therefore often can not satisfy actual needs.
The utility model content
The purpose of this utility model is to propose a kind of improved powerful piecing devices of castinplace pile steel pipe that can bear big pulling capacity, high pulling torque.
The utility model is to realize like this.It mainly is made up of upper and lower joint steel pipe and screw, process the female end face of a 50～200mm in the lower port of last joint steel pipe, male end face at a 50～200mm of upper port processing who saves steel pipe down, the internal and external stopper face matches, on the internal and external stopper face, join and make 1～2 circle, 4～20 taper holes of every circle and corresponding screw, outside screw, leave boss, with internal and external stopper face location, use again to have the screw of tapering with a plurality of positioning sleeves with interior external taper.
The course of work of the present utility model is such.Sling to go up and save steel pipe and save steel pipe down, internal and external stopper face cover is got up, with internal and external stopper face location, use again to have the screw of tapering with a plurality of positioning sleeves with interior external taper.The positioning sleeve that earlier will a plurality ofly have the screw of tapering during dismounting and have an interior external taper is dismantled, and hangs then to go on and saves steel pipe and get final product.
Mainly bear pulling capacity and torsion owing to have the positioning sleeve of interior external taper, the screw with tapering mainly plays pressuring action, and the quantity of An Zhuaning is more in addition, so can bear more powerful pulling capacity and torsion.The utility model is easy to operate, can use repeatedly.
Description of drawings
Fig. 1 is a structural representation of the present utility model,
Fig. 2 is a screw assembling schematic diagram of the present utility model,
Fig. 3 is the bolt structure figure that the utlity model has socket cap,
Fig. 4 is a tapering positioning sleeve structure chart of the present utility model,
Wherein 1----goes up the lower port of joint steel pipe, 2----has the screw of tapering head, and 3----tapering positioning sleeve, 4----be the upper port of joint steel pipe down, the 5----boss, the outer conehead of 6----screw, 7----positioning sleeve male cone (strobilus masculinus), 8----positioning sleeve inner conical surface, the 9----cylindrical hole, 10----screw cylindrical column cap, cylindrical hole in the 11----positioning sleeve external cylindrical surface, 12----positioning sleeve.
The specific embodiment
As seen from the figure, the utility model is mainly by last, under save steel pipe and screw and form, process the female end of a 50～200mm in the lower port (1) of last joint steel pipe, male end at a 50～200mm of upper port (4) processing who saves steel pipe down, the internal and external stopper face matches, on the internal and external stopper face, join and make 1～2 circle, 4～20 taper holes of every circle and corresponding screw, outside screw, leave boss (5), with a plurality of positioning sleeves (3) the internal and external stopper face is located with interior external taper, compress with screw (2) again with tapering head, by positioning sleeve male cone (strobilus masculinus) (7), positioning sleeve inner conical surface (8) is fixed up with the lower port (1) of last joint steel pipe with in the upper port (4) that saves steel pipe down.
The tapering of the screw (2) of positioning sleeve male cone (strobilus masculinus) (7), positioning sleeve inner conical surface (8) and tapering head is 1: 3～10, and best tapering is 1: 8.Positioning sleeve (3) needs through quenching heat treatment.
Positioning sleeve male cone (strobilus masculinus) (7) also can be the face of cylinder.The tapering head of positioning sleeve inner conical surface (8) and screw (2) also can be the face of cylinder.
Claims (5)
1. powerful piecing devices of improved castinplace pile steel pipe, it is mainly by last, under save steel pipe and screw and form, process the female end of a 50～200mm in the lower port (1) of last joint steel pipe, male end at a 50～200mm of upper port (4) processing who saves steel pipe down, the internal and external stopper face matches, on the internal and external stopper face, join and make 1～2 circle, 4～20 taper holes of every circle and corresponding screw, outside screw, leave boss (5), with a plurality of positioning sleeves (3) the internal and external stopper face is located with interior external taper, compress with screw (2) again with tapering head, by positioning sleeve male cone (strobilus masculinus) (7), positioning sleeve inner conical surface (8) is fixed up the lower port (1) of last joint steel pipe and the upper port (4) of following joint steel pipe.
2. the powerful piecing devices of a kind of improved castinplace pile steel pipe according to claim 1 is characterized in that the tapering of the screw (2) of described positioning sleeve male cone (strobilus masculinus) (7), positioning sleeve inner conical surface (8) and tapering head is 1: 3～10.
3. the powerful piecing devices of a kind of improved castinplace pile steel pipe according to claim 1 and 2 is characterized in that the tapering of the screw (2) of described positioning sleeve male cone (strobilus masculinus) (7), positioning sleeve inner conical surface (8) and tapering head is 1: 8.
4. the powerful piecing devices of a kind of improved castinplace pile steel pipe according to claim 1 and 2 is characterized in that described positioning sleeve (3) is through quenching heat treatment.
5. according to claim 1 or the powerful piecing devices of 4 described a kind of improved castinplace pile steel pipes, it is characterized in that the male cone (strobilus masculinus) (7) of described positioning sleeve (3) is the face of cylinder; Perhaps the tapering head of positioning sleeve inner conical surface (8) and screw (2) also can be the face of cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202616674U CN201753446U (en) | 2010-07-15 | 2010-07-15 | Improved bored pile steel tube strong joint device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202616674U CN201753446U (en) | 2010-07-15 | 2010-07-15 | Improved bored pile steel tube strong joint device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201753446U true CN201753446U (en) | 2011-03-02 |
Family
ID=43621178
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202616674U Expired - Fee Related CN201753446U (en) | 2010-07-15 | 2010-07-15 | Improved bored pile steel tube strong joint device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201753446U (en) |
-
2010
- 2010-07-15 CN CN2010202616674U patent/CN201753446U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Improved bored pile steel tube strong joint device Effective date of registration: 20111201 Granted publication date: 20110302 Pledgee: Wuhan Rongzhong investment Company limited by guarantee Pledgor: Wuhan China majestic hydraulic ram limited liability company Registration number: 2011990000468 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20130314 Granted publication date: 20110302 Pledgee: Wuhan Rongzhong investment Company limited by guarantee Pledgor: Wuhan China majestic hydraulic ram limited liability company Registration number: 2011990000468 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110302 Termination date: 20130715 |