CN209637704U - A kind of pile foundation drilling tool - Google Patents
A kind of pile foundation drilling tool Download PDFInfo
- Publication number
- CN209637704U CN209637704U CN201822222847.0U CN201822222847U CN209637704U CN 209637704 U CN209637704 U CN 209637704U CN 201822222847 U CN201822222847 U CN 201822222847U CN 209637704 U CN209637704 U CN 209637704U
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- CN
- China
- Prior art keywords
- drill bit
- mobile jib
- pile foundation
- helical blade
- diameter
- 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.)
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- Piles And Underground Anchors (AREA)
- Earth Drilling (AREA)
Abstract
The utility model discloses a kind of pile foundation drilling tools, including mobile jib (1), drill bit (2) are connected in described mobile jib (1) end, the drill bit (2) is fixedly connected with mobile jib (1) by ring flange (3), the drill bit (2) includes drilling rod (2-1) and helical blade (2-2), and the ring flange (3) diameter is identical as helical blade (2-2) diameter；Due to passing through flanged joint drill bit and mobile jib, and the diameter of ring flange is identical as helical blade diameter, ring flange plays the role of soil compaction when work, have small with collar sidewall and pile foundation contact area, so that resistance is small, the practical power of motor of drilling tool is smaller to reduce cost, and drill bit and mobile jib can be disassembled, and transport and assemble and is more convenient.
Description
Technical field
The utility model relates to a kind of drilling tool, especially a kind of pile foundation drilling tool.
Background technique
Traditional pile foundation drilling tool is carrying out needing for the soil of drill bit to be expressed on pile foundation wall when pile foundation drills through, therefore on drilling tool
Be arranged soil compaction block, and traditional soil compaction block it is cylindrical be arranged between drill bit and mobile jib, drill bit and mobile jib can not be disassembled, and soil compaction
Block needs the biggish motor driven of power that could work, improves and be produced into due to causing resistance big greatly with pile foundation contact area
This.
Utility model content
In order to solve deficiency in the prior art, it is small to provide a kind of resistance, convenient for disassembly and assembly, the pile foundation drilling tool of save the cost,
The technical scheme adopted by the utility model is
A kind of pile foundation drilling tool, including mobile jib are connected with drill bit in the mobile jib end, and the drill bit passes through with mobile jib
Ring flange is fixedly connected, and the drill bit includes drilling rod and helical blade, the flange disk diameter and helical blade diameter phase
Together.
Further, the helical blade width is 2-5 millimeters.
Further, gap is evenly equipped on the helical blade.
Further, the drilling rod height is 2-3 meters, and the helical blade is arranged in drilling rod entire body.
Due to by flanged joint drill bit and mobile jib, and the diameter of ring flange is identical as helical blade diameter, method when work
Blue disk plays the role of soil compaction, since collar sidewall and pile foundation contact area are small, so that resistance is small, the practical motor of drilling tool
Power is smaller to reduce cost, and drill bit and mobile jib can be disassembled, and transport and assemble and is more convenient.
Detailed description of the invention
FIG. 1 is a schematic structural view of the utility model.
Specific embodiment
Pile foundation drilling tool as shown in Figure 1, including mobile jib 1 are connected with drill bit 2 in 1 end of mobile jib, and drill bit 2 and mobile jib 1 are logical
Ring flange 3 is crossed to link together, it is convenient for disassembly and assembly, and facilitate the transport of drilling tool.Drill bit 2 includes drilling rod 2-1 and helical blade 2-
The diameter of 2, helical blade 2-2 are identical with the diameter of ring flange 3, and width (the i.e. helical blade edge to brill of helical blade 2-2
The distance on bar surface) it is 2-5 millimeters, drilling rod 2-1 length is 2-3 meters, and helical blade is arranged in drilling rod 2-1 entire body.In order to suitable
Answer boulder bed ground punching reduce resistance on helical blade 2-2 be equipped with gap 2-3, and general soil layer select without
The helical blade of gap.When rotation is worked, the helical blade 2-2 soil screwed out is expressed to pile foundation side by ring flange 3
Wall plays the role of soil compaction block.
Claims (4)
1. a kind of pile foundation drilling tool, including mobile jib (1) are connected with drill bit (2) in described mobile jib (1) end, it is characterised in that: institute
The drill bit (2) stated is fixedly connected with mobile jib (1) by ring flange (3), and the drill bit (2) includes drilling rod (2-1) and helical-blade
Piece (2-2), the ring flange (3) diameter are identical as helical blade (2-2) diameter.
2. a kind of pile foundation drilling tool according to claim 1, it is characterised in that: helical blade (2-2) width is 2-5
Millimeter.
3. a kind of pile foundation drilling tool according to claim 1 or 2, it is characterised in that: on the helical blade (2-2)
It is furnished with gap (2-3).
4. a kind of pile foundation drilling tool according to claim 1 or 2, it is characterised in that: the drilling rod (2-1) is highly 2-3
Rice, the helical blade (2-2) are arranged in drilling rod (2-1) entire body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822222847.0U CN209637704U (en) | 2018-12-28 | 2018-12-28 | A kind of pile foundation drilling tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822222847.0U CN209637704U (en) | 2018-12-28 | 2018-12-28 | A kind of pile foundation drilling tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209637704U true CN209637704U (en) | 2019-11-15 |
Family
ID=68476182
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822222847.0U Active CN209637704U (en) | 2018-12-28 | 2018-12-28 | A kind of pile foundation drilling tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209637704U (en) |
-
2018
- 2018-12-28 CN CN201822222847.0U patent/CN209637704U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |