CN2251040Y - Hole cleaning drilling pail for pile hole drilling machine - Google Patents
Hole cleaning drilling pail for pile hole drilling machine Download PDFInfo
- Publication number
- CN2251040Y CN2251040Y CN 95241144 CN95241144U CN2251040Y CN 2251040 Y CN2251040 Y CN 2251040Y CN 95241144 CN95241144 CN 95241144 CN 95241144 U CN95241144 U CN 95241144U CN 2251040 Y CN2251040 Y CN 2251040Y
- Authority
- CN
- China
- Prior art keywords
- hole
- sleeve pipe
- drilling
- inner sleeve
- pile
- 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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- Earth Drilling (AREA)
Abstract
The utility model relates to a hole cleaning drilling pail for pile hole drilling machines for piling and drilling soft earth foundations. The utility model comprises an inner sleeve pipe and an outer sleeve pipe 5. The utility model is characterized in that the upper end of the outer sleeve pipe 5 is provided with a convex shoulder 2; both sides of the outer sleeve pipe 5 are provided with a cutter array groove 9 and a partition board 8; the upper side of the partition board 8 is provided with a cutter array 3 with variable diameters; a certain distance e exists between the convex shoulder 2 and the upper end of the inner sleeve pipe 1; one end of the cutter array 3 with variable diameters is movably connected with the partition board 8, and the middle of the cutter array 3 with variable diameters is movably connected with the inner sleeve pipe 1 through a connecting rod 4. The utility model can enlarge the diameters of any position or ends of pile holes according to soil of every layer of soft earth foundations, and thus, the bearing capacity of piles can be increased, and the cost of pile foundations can be reduced by more than 10%.
Description
The utility model relates to a kind of Post hole driller that is used for soft foundation piling boring, relates in particular to a kind of hole cleaning drilling pail of Post hole driller, belongs to the building machinery technical field.
Existing bored pile adopts positive and negative circulation drilling machine construction.The hole cleaning drilling pail of its Post hole driller comprises inside and outside sleeve pipe and is arranged on the clear hole blade row of outer tube lower end.This hole cleaning drilling pail can only play clear hole and fetch earth, and can not change the diameter and the clear hole of boring.Therefore, the pile diameter that forms behind the drill-pouring is unanimous between the higher and lower levels, and sediment easily makes pile body sink at the bottom of its hole, and bearing capacity of single pile descends, and must increase the pile diameter for reaching designing requirement, causes cost to improve.
The purpose of this utility model is to provide a kind of reducing hole cleaning drilling pail that can change the Post hole driller of stake hole local diameter.
The utility model is achieved in that a kind of hole cleaning drilling pail of Post hole driller, comprise inner sleeve and outer tube, be provided with a convex shoulder at outer sleeve upper, both sides have the blade row groove and dividing plate are housed, the dividing plate upside is equipped with the reducing blade row, there is a segment distance described convex shoulder upper end from the upper end of inner sleeve, is used for regulating the counter bore diameter of hole cleaning drilling pail reducing blade row; Described reducing blade row one end connects with dividing plate is movable, and the centre connects by connecting rod and inner sleeve activity.
Compare with the brill bucket of existing Post hole driller, the utility model is owing to set up a telescopic reducing blade row in boring bucket, can regulate the counter bore diameter of reducing blade row easily by the up-down adjustment inner sleeve upper end and the distance of convex shoulder, thereby the diameter that can enlarge the stake hole in the optional position or the end in stake hole according to the soil property of each layer soft foundation, promptly form laemodipodiform or end enlarged footing pile, and the removing pile bottom sediment, the settling amount of this pile is obviously reduced, the vertical bearing ability significantly improves.Reaching the diameter that can reduce pile under the prerequisite of same designing requirement.If can make the end of diameter of phi 850m enlarge the bearing capacity that stake can reach the common straight-through stake of diameter of phi 1000mm, can reduce the pile foundation cost like this more than 10%.
Fig. 1 is an internal construction schematic diagram of the present utility model.
Fig. 2 looks face for the A-A portion of Fig. 1.
Below in conjunction with accompanying drawing the utility model being done one describes in detail:
Shown in Fig. 1-2, the clear hole blade row 6 that the utility model comprises inner sleeve 1 and outer tube 5 and is arranged on the outer tube lower end.Outer tube 5 upper ends are provided with a convex shoulder 2, and the diameter of convex shoulder 2 is a bit larger tham the diameter of inner sleeve 1, and there is a segment distance e upper end of convex shoulder 2 from the upper end of inner sleeve, and this distance is set according to the diameter of need reaming; The both sides of outer tube 5 have blade row groove 9 and two dividing plates 8 are housed, and the upside of dividing plate 8 is equipped with reducing blade row 3, and reducing blade row 3 is divided in the upper left side and the upper right side of two dividing plates; The degree of depth of blade row groove 9 and dividing plate 8 is slightly larger than the length of reducing blade row 3.One end of this reducing blade row 3 connects with pin and the activity of dividing plate 8 upsides, and the centre flexibly connects with pin by connecting rod 4 and inner sleeve.Same reducing blade row 3 also adopts removable pin to connect with 4 on connecting rod.
During reaming, earlier according to the diameter of need reaming set convex shoulder 2 and inner sleeve 1 upper end apart from e, the hole cleaning drilling pail that puts down Post hole driller then starts rig and carries out reaming to the position that needs reaming, and the clear hole blade row 6 that is arranged on the outer tube lower end is simultaneously scraped the earth that scrapes in the outer tube.Up mention inner sleeve 1 after reaming finishes, reducing blade row 3 can take in the outer tube automatically.After boring finishes, use this brill bucket to make sediment seldom, solved the sediment problem that dry type is bored soil.
Claims (1)
1, a kind of hole cleaning drilling pail of Post hole driller, comprise inner sleeve and outer tube, it is characterized in that outer tube (5) upper end is provided with a convex shoulder (2), both sides have blade row groove (9) and dividing plate (8) is housed, dividing plate (8) upside is equipped with reducing blade row (3), described convex shoulder (2) has a segment distance (e) from inner sleeve (1) upper end, described reducing blade row (3) one ends connect with dividing plate (8) is movable, and the centre connects by connecting rod (4) and inner sleeve (1) activity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95241144 CN2251040Y (en) | 1995-12-22 | 1995-12-22 | Hole cleaning drilling pail for pile hole drilling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95241144 CN2251040Y (en) | 1995-12-22 | 1995-12-22 | Hole cleaning drilling pail for pile hole drilling machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2251040Y true CN2251040Y (en) | 1997-04-02 |
Family
ID=33882582
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95241144 Expired - Fee Related CN2251040Y (en) | 1995-12-22 | 1995-12-22 | Hole cleaning drilling pail for pile hole drilling machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2251040Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105064922A (en) * | 2015-08-25 | 2015-11-18 | 中铁十一局集团第四工程有限公司 | Reamer bit for abrasion drill |
-
1995
- 1995-12-22 CN CN 95241144 patent/CN2251040Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105064922A (en) * | 2015-08-25 | 2015-11-18 | 中铁十一局集团第四工程有限公司 | Reamer bit for abrasion drill |
| CN105064922B (en) * | 2015-08-25 | 2018-02-06 | 中铁十一局集团第四工程有限公司 | A kind of reaming bit for abrasion drill |
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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 |