CN2716484Y - Pressing and pouring drilling bit - Google Patents
Pressing and pouring drilling bit Download PDFInfo
- Publication number
- CN2716484Y CN2716484Y CN 200420051905 CN200420051905U CN2716484Y CN 2716484 Y CN2716484 Y CN 2716484Y CN 200420051905 CN200420051905 CN 200420051905 CN 200420051905 U CN200420051905 U CN 200420051905U CN 2716484 Y CN2716484 Y CN 2716484Y
- Authority
- CN
- China
- Prior art keywords
- bit body
- apex point
- bit
- pressing
- pouring
- 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 discloses a pressing and pouring drilling bit which is composed of a bit body whose center is cylindrical. The side surface of the bit body is provided with a screw blade which is used for lifting the drilled soil. The lower end of the bit body is provided with a drill point. A guard disc which can seal the opening of the end of the cylindrical bit body is fixedly provided between the drill point and the junction surface of the bit body. A sealing ring is arranged on the guard disc. One end of the drill point is hinged on the lateral wall of the bit body, and the other end of the drill point is inserted in an inserting slot on the lateral wall of the bit body. The soil pushes the drill point and the guard disc in drilling. The grouting pipe can be greatly sealed in drilling because the sealing ring is arranged on the guard disc, and the water can not enter the grouting pipe. When the mix material is pumped and pressed by lifting the drill, the high-voltage mix material pushes a valve to fill the drill hole, and the peg is formed. The utility model has great sealing and high intensity of forming the peg.
Description
Technical field
The utility model relates to the instrument of pile in a kind of building machinery field, relates in particular to a kind of drill bit of irritating pile of pressing.
Background technology
The cored screw drilling rod is installed drill bit and is being bored the stake hole on the ground, and the hollow section pump pressure compound pile in boring through the cored screw drilling rod is a common technology of building field then.The drill bit that this technology adopts, apex point top two STHs, and hinged valve.Earth withstands valve during boring, and the valve press seal is lived drill bit two side through hole, carries when boring the pump pressure compound, and the high pressure mixing material is pushed valve open, fills bored pile.Its shortcoming is: when having the pile bit bore now, apex point valve closure is bad, cause an interior water to enter in the cored screw drilling rod, when the perfusion pile, compound enters behind the cored screw drilling rod and the water in the hollow stem mixes, so changed the composition of compound, the stake intensity that is become reduced, and waste a large amount of materials.
Summary of the invention
The Pressing and pouring drilling bit of being convenient to open when good seal, pile when technical problem to be solved in the utility model provides a kind of boring, the technological deficiency that sealing is bad, pile intensity is low when solving Pressing and pouring drilling bit boring of the prior art.
For achieving the above object, the technical solution of the utility model is: a kind of Pressing and pouring drilling bit comprises that the center is a bit body cylindraceous, the side of bit body is provided with and promotes the helical blade that gets out soil, the bottom of bit body is provided with apex point, setting firmly one on the described apex point and between the bonding surface of bit body can the open-ended block plate of closed circular tubular bit body, block plate is provided with sealing ring, and an end of described apex point is hinged on the sidewall of bit body, and the other end of apex point is plugged in the slot on the bit body sidewall.
Owing to adopt technique scheme, a kind of Pressing and pouring drilling bit comprises that the center is a bit body cylindraceous, the side of bit body is provided with and promotes the helical blade that gets out soil, the bottom of bit body is provided with apex point, setting firmly one on the described apex point and between the bonding surface of bit body can the open-ended block plate of closed circular tubular bit body, block plate is provided with sealing ring, and an end of described apex point is hinged on the sidewall of bit body, and the other end of apex point is plugged in the slot on the bit body sidewall; Earth withstands apex point and block plate during boring, because block plate is provided with sealing ring, can seal up grout pipe well when therefore holing, make water can not enter in the grout pipe, carry when boring the pump pressure compound, the high pressure mixing material is pushed valve open, fills boring and gets final product pile, the utility model good seal, pile intensity height.
Description of drawings
Accompanying drawing 1 is the structural representation of the utility model embodiment.
Accompanying drawing 2 is sectional views of the utility model embodiment.
Accompanying drawing 3 is sectional views of the utility model embodiment apex point.
The specific embodiment
Shown in accompanying drawing 1, accompanying drawing 2, accompanying drawing 3, a kind of Pressing and pouring drilling bit comprises that the center is a bit body 1 cylindraceous, the side of bit body 1 is provided with and promotes the helical blade 2 that gets out soil, the bottom of bit body 1 is provided with apex point 3, setting firmly one on the described apex point 3 and between the bonding surface of bit body 1 can closed circular tubular bit body 1 open-ended block plate 4, block plate 4 is provided with sealing ring 5, one end of described apex point 3 is hinged on the sidewall of bit body 1, and the other end of apex point 3 is plugged in the slot on bit body 1 sidewall.Described apex point 3 is for being the plane apex point of vertical configuration and lower end band point.Described apex point 3 is the welding composite construction, and wherein the intermediate layer is a carbide alloy 31, and the both sides of carbide alloy 31 are manganese steel plate 32.Described helical blade 2 lower ends also are provided with carbide cutting sword 21.
When boring the stake hole, because the pushing of earth, apex point 3 and block plate 4 are pressed on the central nozzle of bit body 1 tightly, water in the boring procedure just can not enter in the pipe, and when getting into set depth and pouring into, carry and bore the pump pressure compound, the high pressure mixing material is pushed apex point 3 and block plate 4 open, and compound enters bored pile.
Claims (4)
1. Pressing and pouring drilling bit, comprise that the center is bit body cylindraceous (1), the side of bit body (1) is provided with and promotes the helical blade (2) that gets out soil, the bottom of bit body (1) is provided with apex point (3), it is characterized in that: described apex point (3) go up and the bonding surface of bit body (1) between set firmly one can the open-ended block plate of closed circular tubular bit body (1) (4), block plate (4) is provided with sealing ring (5), one end of described apex point (3) is hinged on the sidewall of bit body (1), and the other end of apex point (3) is plugged in the slot on bit body (1) sidewall.
2. a kind of Pressing and pouring drilling bit as claimed in claim 1 is characterized in that: described apex point (3) is for being the plane apex point of vertical configuration and lower end band point.
3. a kind of Pressing and pouring drilling bit as claimed in claim 2 is characterized in that: described apex point (3) is the welding composite construction, and wherein the intermediate layer is carbide alloy (31), and the both sides of carbide alloy (31) are manganese steel plate (32).
4. as claim 1,2 or 3 described a kind of Pressing and pouring drilling bits, it is characterized in that: described helical blade (2) lower end also is provided with carbide cutting sword (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420051905 CN2716484Y (en) | 2004-06-26 | 2004-06-26 | Pressing and pouring drilling bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420051905 CN2716484Y (en) | 2004-06-26 | 2004-06-26 | Pressing and pouring drilling bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2716484Y true CN2716484Y (en) | 2005-08-10 |
Family
ID=34872629
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420051905 Expired - Fee Related CN2716484Y (en) | 2004-06-26 | 2004-06-26 | Pressing and pouring drilling bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2716484Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103243740A (en) * | 2013-05-20 | 2013-08-14 | 马春根 | Construction method of rotary excavating and long spiral combination bored concrete pressure grouting secant pile continuous wall |
| TWI471475B (en) * | 2011-10-04 | 2015-02-01 | Chuan Home Machinery Co Ltd | Pneumatic Hammer Drilling with Grouting Pipes |
-
2004
- 2004-06-26 CN CN 200420051905 patent/CN2716484Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI471475B (en) * | 2011-10-04 | 2015-02-01 | Chuan Home Machinery Co Ltd | Pneumatic Hammer Drilling with Grouting Pipes |
| CN103243740A (en) * | 2013-05-20 | 2013-08-14 | 马春根 | Construction method of rotary excavating and long spiral combination bored concrete pressure grouting secant pile continuous wall |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050810 Termination date: 20100626 |