CN2270073Y - Wedge pile tip enlarging device - Google Patents
Wedge pile tip enlarging device Download PDFInfo
- Publication number
- CN2270073Y CN2270073Y CN 96248104 CN96248104U CN2270073Y CN 2270073 Y CN2270073 Y CN 2270073Y CN 96248104 CN96248104 CN 96248104 CN 96248104 U CN96248104 U CN 96248104U CN 2270073 Y CN2270073 Y CN 2270073Y
- Authority
- CN
- China
- Prior art keywords
- wedge
- sleeve
- oil cylinder
- reaming
- hole expanding
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Piles And Underground Anchors (AREA)
Abstract
The utility model relates to an enlarging device for a wedge pile end, which is suitable for the hole expanding of pile bottoms. The utility model mainly comprises a telescopic rod, wherein a sleeve is fixed at the lower part of the telescopic rod, an oil cylinder and a hole expanding wedge are sheathed in the sleeve, the oil cylinder is fixed on the top of the sleeve, a piston rod of the oil cylinder is movably connected with the hole expanding wedge, an opening of the sleeve is arranged on the side surface of the lower part of the sleeve, the hole expanding wedge can freely extend out from the opening, and a guiding wedge is also fixed on the bottom surface of the inner side of the sleeve for guiding the direction of movement of the hole expanding wedge. The utility model has the advantages of reasonable design, simple process, reliable hole expanding quality and low cost, and is an ideal hole expanding device for the pile end having popularization and application value.
Description
The utility model relates to a kind of building lot construction machinery, particularly a kind of wedge-type stake end expander.
At present both at home and abroad in the building lot construction, the extensive perfusion technique that adopts, with its reliable in quality, duration is short, cost is low, advantages such as job site civilization are subjected to building the popular welcome on boundary, at present, castinplace pile generally is the equal diameter pore-forming, run into bearing capacity of single pile when very big, have only by increasing stake footpath and long the meeting the demands of stake, like this, construction costs is relative with difficulty of construction to be increased, for overcoming the above problems, the domestic way that has the expansion adopted end area to improve bearing capacity of single pile very early is as explosion expanded piling, the high-pressure slip-casting expanded bore pile, the drilled dry mechanical hole reaming, holing with slurry wall protection, methods such as artificial reaming, but above method is in technology, aspects such as equipment, all there are some problems, as complex process, the cost height, speed is slow, and some method can not ensure the quality of products, so application surface is very little.
The purpose of this utility model provides that a kind of cost is low, pile quality is high, fireballing wedge-type stake end expander.
It comprises expansion link the utility model, the lower end branch sleeve of expansion link, in sleeve, be with oil cylinder and reaming wedge, oil cylinder is fixed on the top of sleeve, be connected with the reaming wedge on the piston rod of oil cylinder, the high-pressure oil pipe that is communicated with Hydraulic Station is arranged on the oil cylinder, and the lower side of sleeve is provided with the sleeve openings of freely stretching out for the reaming wedge, is provided with the guiding wedge that can guide the directed movement of reaming wedge on the sleeve inside bottom surface.
During use, behind the rig pore-forming, expander placed the hole at the bottom of, start Hydraulic Station,, in oil cylinder, promote the oil cylinder piston bar and stretch out gradually by high-pressure oil pipe, it promotes the reaming wedge and stretches out from sleeve openings, under the guiding of guiding wedge, does vertically to expand with horizontal extruding to stretch motion, thereby push closely knit soil, expand to design size, can stop, then, in reaming wedge withdrawal sleeve, such operation is finished.Rotate an angle again and repeat to do the load frustum that promptly forms a continuous shape several times.Also can on different design heights, squeeze out several load frustums according to designing requirement.
The utility model has following advantage: (1) the utility model is best suited for enlarged opening on pile bottom, during owing to reaming is to utilize the directed extruding reaming under the guiding of guiding wedge of reaming wedge; Institute is so that the stake subsoil is closely knit, smooth, and earth bearing strength improves greatly, especially when rock stratum and the reaming of native junction, because of the reaming wedge under pressure, directly act on like scraper that no loosened soil exists on the scar, and enlarge frustum directly on scar, thereby improved the bearing capacity of stake greatly, reliable in quality; (2) utilize the utility model enlarged opening on pile bottom,, start Hydraulic Station and can finish reaming as long as put at the bottom of the hole it or design height, so it is simple to have technology, advantage such as speed is determined, and cost is low.
The utility model is described in further detail below in conjunction with drawings and Examples.
Accompanying drawing is a structure chart of the present utility model.
The embodiment of the present utility model that accompanying drawing is drawn, it comprises expansion link 2, at the lower end of expansion link 2 bolt branch sleeve 5, in sleeve 5, be with oil cylinder 1 and reaming wedge 4, there is oil cylinder 1 at top at sleeve 5 with bolt, flexibly connecting reaming wedge 4 with rotating shaft on the piston rod 7 of oil cylinder, the high-pressure oil pipe 8 that is communicated with Hydraulic Station 9 is arranged on the oil cylinder 1, sleeve openings 6 is arranged on the lower side of sleeve 5, reaming wedge 4 can freely stretch out from opening part, be fixed with guiding wedge 3 on sleeve 5 inside bottom surface, it can guide reaming wedge 4 directed moving, and finishes design reaming task.The utility model is reasonable in design, and is simple in structure, easy to use, and reliable in quality is a kind of desirable stake end expander.
Claims (1)
- A kind of wedge-type stake end expander, it is characterized in that it comprises expansion link (2), lower end branch sleeve (5) at expansion link (2), in sleeve (5), be with oil cylinder (1) and reaming wedge (4), oil cylinder (1) is fixed on the top of sleeve, be connected with reaming wedge (4) on the piston rod of oil cylinder (7), the high-pressure oil pipe (8) that connection Hydraulic Station (9) are arranged on the oil cylinder (1), the lower side of sleeve (5) is provided with the sleeve openings (6) of freely stretching out for reaming wedge (4), is provided with the guiding wedge (3) that can guide reaming wedge (4) directed movement on sleeve (5) inside bottom surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96248104 CN2270073Y (en) | 1996-10-11 | 1996-10-11 | Wedge pile tip enlarging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96248104 CN2270073Y (en) | 1996-10-11 | 1996-10-11 | Wedge pile tip enlarging device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2270073Y true CN2270073Y (en) | 1997-12-10 |
Family
ID=33920045
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96248104 Expired - Fee Related CN2270073Y (en) | 1996-10-11 | 1996-10-11 | Wedge pile tip enlarging device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2270073Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001044584A1 (en) * | 1999-12-14 | 2001-06-21 | Zuoping Gao | Interlock anchor rod for concrete and a bit of drill for enlarging the earthen hole |
| CN102235003A (en) * | 2010-04-29 | 2011-11-09 | 宝山钢铁股份有限公司 | Expanded steel pile tip for prefabricated concrete tubular pile and pile sinking construction method |
| CN103967414A (en) * | 2014-05-19 | 2014-08-06 | 郑州神利达钻采设备有限公司 | Drill with each drill piece provided with two working faces |
-
1996
- 1996-10-11 CN CN 96248104 patent/CN2270073Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001044584A1 (en) * | 1999-12-14 | 2001-06-21 | Zuoping Gao | Interlock anchor rod for concrete and a bit of drill for enlarging the earthen hole |
| CN102235003A (en) * | 2010-04-29 | 2011-11-09 | 宝山钢铁股份有限公司 | Expanded steel pile tip for prefabricated concrete tubular pile and pile sinking construction method |
| CN102235003B (en) * | 2010-04-29 | 2013-04-24 | 宝山钢铁股份有限公司 | Expanded steel pile tip for prefabricated concrete tubular pile and pile sinking construction method |
| CN103967414A (en) * | 2014-05-19 | 2014-08-06 | 郑州神利达钻采设备有限公司 | Drill with each drill piece provided with two working faces |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |