CN2477707Y - Base enlarging appts. for club-footed pile for fundation construction - Google Patents
Base enlarging appts. for club-footed pile for fundation construction Download PDFInfo
- Publication number
- CN2477707Y CN2477707Y CN 01222652 CN01222652U CN2477707Y CN 2477707 Y CN2477707 Y CN 2477707Y CN 01222652 CN01222652 CN 01222652 CN 01222652 U CN01222652 U CN 01222652U CN 2477707 Y CN2477707 Y CN 2477707Y
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- CN
- China
- Prior art keywords
- turning set
- set arm
- drive link
- stabilizing shaft
- stable axis
- 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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Abstract
The utility model relates to a reaming device for a pedestal pile used in the foundation construction, and comprises a stabilizing shaft with a base. A sliding bush sleeved outside the stabilizing shaft is hinged with a link lever; the rotating lever of the stabilizing shaft is connected with a water and stone suction hole, slides up and down along a rotating bush arm and is provided with a synchronous rotary mechanism; the driving rod of the stabilizing shaft is fixedly connected with the sliding bush arm, and the rotating bush arm is connected with the stabilizing shaft via a bracket; and both ends of the reaming blade are connected with the other end of the link lever and the external end of the rotating bush arm. The utility model has the advantages of good stability of the wall of the hole, uneasy collapse of the hole, small cutting resistance, high efficiency, long service life of the blade, durability, high reaming rate, large bearing capacity of the pipe, simple structure, convenient use, low cost and broad scope of use.
Description
The utility model relates to the foundation pile technical field.
Along with the continuous development of engineering construction, various buildings are increasing to the requirement for bearing capacity on basis.In order to increase bearing capacity of single pile, adopting underreamed bored pile in the construction on basis is a kind of cost-effective method.End device is expanded at present domestic deadweight bottom-open type commonly used boring, and its drive link is fixedlyed connected with the turning set arm, fixedlys connected with stable axis with the sliding sleeve that the expansion cutter links to each other by connecting rod, and cutter arrangement is the turning shape.Its defective is that the expansion cutter moves down simultaneously during reaming, makes wall stability poor, the hole of easily collapsing; Cutting resistance is bigger, and cutter life is shorter; Because structural limitations, it is less that it expands end rate; Efficient is low, the cost height.
The purpose of this utility model provides a kind of foundation pile construction expanded bore pile and expands end device, and it has overcome above-mentioned drawback by the architecture advances to said apparatus, it is good to have wall stability, be difficult for the hole of collapsing, cutting resistance is little, the efficient height, cutter life is long, expand end rate height, cost is low, and is simple in structure, easy to use, advantage of wide range of application.
The utility model is achieved in that a kind of foundation construction expanded bore pile expands end device, comprise the stable axis of being with base, it is characterized in that being enclosed within stable axis outer sliding sleeve and connecting rod is twisted together, the boring drive link is fixedlyed connected with sliding sleeve, cooperate for sliding up and down between drive link and turning set arm, and between be provided with synchronous rotational structure, be connected and fixed by support between turning set arm and stable axis, the two ends of expanding cutter are twisted together with the other end of connecting rod and the outer end of turning set arm respectively, dwang is a hollow, and the bottom is provided with inhales the stone mouth of a river.
Rotational structure can be the turning set arm and is provided with cubic hole or hexagon ring etc. synchronously, and the drive link cross section is the shape that cooperates with it.
Turning set arm and supporting expansion cutter, connecting rod thereof have 2 groups, more than 3 groups or 3 groups.
Stable axis is preferably the cover shape that is communicated with drive link, and the bottom is provided with inhales the stone water pipe.
Stable axis preferably is contained on the base by bearing.
Expanding outer, cutter shaft cross section can be and be linear or shaped form etc.
The utility model has the advantages that: owing to expand cutter only around its bearing pin center, top swing, no upper and lower displacement so wall stability is good, is difficult for the hole of collapsing; Cutting resistance is little, and cutter life is long, the efficient height; Expand end rate height, bearing capacity is big, the province's material that saves time, and cost is lower; Simple in structure, convenient durable; Applied widely.
Be described further below in conjunction with drawings and Examples, but not as to qualification of the present utility model.
Fig. 1 is its structural representation.
Fig. 2 is a kind of prior art constructions schematic diagram.
Referring to Fig. 1, stable axis 7 (top is hollow, and the bottom is solid) is contained on the base 6 of tape spool bearing, and sliding sleeve 9 is enclosed within outside the axle, and with the band mounting flange 1 connecting rod 5 be twisted together, sliding sleeve 9 and boring drive link 2 are connected as a single entity, and can slide up and down, and drive link 2 is a square tube, the outside is with turning set arm 3, can slide relatively up and down, and can rotate, expand cutter 4 and be twisted together with the turning set arm 3 and connecting rod 5 other ends respectively with drive link.When drive link 2 presses down and rotates, sliding sleeve 9 promptly will expand the cutter cutting that gets out and hole by connecting rod 5, and turning set arm 3 is owing to fix by a support and axle 7, so do not move up and down during 3 borings of turning set arm, therefore expand and will not produce upper and lower displacement when cutter 4 cuts.Expand cutter 4 axial section outlines and can be arranged in a straight linely, or curve, camber line are arranged and all can.Its hole expansibility can be very big, and simple in structure, easy to use and reliable.When the cutting knife hobboing cutter that changes the outfit, when being used to cut hard layers such as hard rock, also can convenient and reliablely use.As expanding 3.6m with being used for φ 2m hole to φ, expand the back and detect with the ultrasonic wave hole shape, reached designing requirement fully.
Fig. 2 illustrates slightly.
Claims (6)
1, a kind of foundation construction expanded bore pile expands end device, the stable axis (7) that comprises band base (6), it is characterized in that being enclosed within the outer sliding sleeve (9) of stable axis (7) is twisted together with connecting rod (5), boring drive link (2) is fixedlyed connected with sliding sleeve (9), cooperate for sliding up and down between drive link (2) and turning set arm (3), and between be provided with synchronous rotational structure, be connected and fixed by support between turning set arm (3) and stable axis (7), the two ends of expanding cutter (4) are twisted together with the other end of connecting rod (5) and the outer end of turning set arm (3) respectively, dwang (2) is a hollow, and the bottom is provided with inhales the stone mouth of a river.
2, device according to claim 1 is characterized in that synchronous rotational structure is that turning set arm (3) is provided with cubic hole, and drive link (2) cross section is cooperate with it square.
3, device according to claim 1 is characterized in that turning set arm (2) and supporting expansion cutter (4), connecting rod (5) thereof have more than 3 groups or 3 groups.
4, device according to claim 1 is characterized in that the cover shape of stable axis (7) for being communicated with drive link (2), and the bottom is established and inhaled stone water pipe (8).
5, device according to claim 1 is characterized in that stable axis (7) is contained on the base (6) by bearing.
6, according to claim 1,2,3,4 or 5 described devices, the shaft section outer that it is characterized in that expanding cutter (4) is shape or shaped form linearly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01222652 CN2477707Y (en) | 2001-05-11 | 2001-05-11 | Base enlarging appts. for club-footed pile for fundation construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01222652 CN2477707Y (en) | 2001-05-11 | 2001-05-11 | Base enlarging appts. for club-footed pile for fundation construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2477707Y true CN2477707Y (en) | 2002-02-20 |
Family
ID=33639437
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01222652 Expired - Fee Related CN2477707Y (en) | 2001-05-11 | 2001-05-11 | Base enlarging appts. for club-footed pile for fundation construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2477707Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1734023B (en) * | 2004-08-10 | 2010-05-05 | 包尔机械有限公司 | Cutting device and method for producing a cut hole |
| CN1965145B (en) * | 2004-06-09 | 2010-05-05 | 霍利贝顿能源服务股份有限公司 | Enlarging and stabilising tool for a borehole |
| CN101220730B (en) * | 2008-01-24 | 2010-12-08 | 煤炭科学研究总院西安研究院 | Exterior lifting and pressing type ream bit for solum hole |
| CN101225736B (en) * | 2008-02-01 | 2011-05-25 | 西南石油大学 | Hydraulic double-acting drilling reamer |
| CN104895124A (en) * | 2015-05-27 | 2015-09-09 | 王春龙 | Method and device for monitoring finished plates of squeezed and expanded branch and plate cast-in-place pile |
| CN109702248A (en) * | 2019-03-04 | 2019-05-03 | 李吴军 | A kind of reaming bit of workpiece blind hole |
| CN109843491A (en) * | 2016-12-06 | 2019-06-04 | Osg株式会社 | Cutting element, insertion bracket and insertion piece |
-
2001
- 2001-05-11 CN CN 01222652 patent/CN2477707Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1965145B (en) * | 2004-06-09 | 2010-05-05 | 霍利贝顿能源服务股份有限公司 | Enlarging and stabilising tool for a borehole |
| CN1734023B (en) * | 2004-08-10 | 2010-05-05 | 包尔机械有限公司 | Cutting device and method for producing a cut hole |
| CN101220730B (en) * | 2008-01-24 | 2010-12-08 | 煤炭科学研究总院西安研究院 | Exterior lifting and pressing type ream bit for solum hole |
| CN101225736B (en) * | 2008-02-01 | 2011-05-25 | 西南石油大学 | Hydraulic double-acting drilling reamer |
| CN104895124A (en) * | 2015-05-27 | 2015-09-09 | 王春龙 | Method and device for monitoring finished plates of squeezed and expanded branch and plate cast-in-place pile |
| CN104895124B (en) * | 2015-05-27 | 2016-09-21 | 王春龙 | The one-tenth dish monitoring method and device of expanding branch grouting pile |
| CN109843491A (en) * | 2016-12-06 | 2019-06-04 | Osg株式会社 | Cutting element, insertion bracket and insertion piece |
| US11123811B2 (en) | 2016-12-06 | 2021-09-21 | Osg Corporation | Cutting tool, insert holder and insert |
| CN109702248A (en) * | 2019-03-04 | 2019-05-03 | 李吴军 | A kind of reaming bit of workpiece blind hole |
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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 |