CN217106837U - Hollow self-drilling type anchor rod drill bit - Google Patents
Hollow self-drilling type anchor rod drill bit Download PDFInfo
- Publication number
- CN217106837U CN217106837U CN202220964186.2U CN202220964186U CN217106837U CN 217106837 U CN217106837 U CN 217106837U CN 202220964186 U CN202220964186 U CN 202220964186U CN 217106837 U CN217106837 U CN 217106837U
- Authority
- CN
- China
- Prior art keywords
- plane
- drill bit
- cutting edge
- arc
- shaped cutting
- 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.)
- Active
Links
Images
Landscapes
- Earth Drilling (AREA)
Abstract
The utility model relates to an anchor rod drill bit technical field specifically is a cavity is from boring formula anchor rod drill bit, and it includes the drill bit main part, the shape of drill bit main part is the triangular prism, the drill bit main part includes first plane, second plane, third plane, fourth plane and fifth plane, first plane and second plane are triangle-shaped and parallel mutually, third plane, fourth plane and fifth plane respectively with first plane, the perpendicular connection of second plane third plane and fourth plane are provided with the arc cutting edge the connecting hole to the drill bit main part is inside sunken is seted up to the fifth plane. The utility model is suitable for a geology of difficult pore-forming such as weak soil, sand can effectively improve drilling speed, safe and reliable, and simple structure, cost are low, practice thrift manufacturing cost.
Description
Technical Field
The utility model relates to an anchor rod drill bit technical field specifically is a cavity is from boring formula anchor rod drill bit.
Background
With the development of rock-soil anchoring technology, the common steel bar anchor rod cannot solve the problems which may exist in the construction under some special geological conditions, such as hole collapse which may be faced when working in weak and loose rock-soil. The self-drilling anchor rod is used as a novel supporting mode, the improvement on the stability of the side slope is very effective, the self-drilling anchor rod is used in a large amount in domestic and foreign engineering projects, the hole collapse problem in the construction of the common anchor rod can be solved, the self-drilling anchor rod also has the functions of integrating drilling, grouting and anchoring, compared with the common steel bar anchor rod, the working procedures of withdrawing the drill rod and inserting the anchor rod are saved, and the construction period can be greatly shortened.
SUMMERY OF THE UTILITY MODEL
For solving the problem of punching in the geology of difficult pore-forming such as weak soil, sand, the utility model provides a following technical scheme: a hollow self-drilling anchor bit comprises a bit body, wherein the bit body is in the shape of a triangular prism and comprises a first plane, a second plane, a third plane, a fourth plane and a fifth plane;
the first plane and the second plane are arranged in parallel, the first plane and the second plane are both triangular, the third plane and the fourth plane are both connected with the top angle of the first plane and the top angle of the second plane, and the fifth plane is connected with the bottom angle of the first plane and the bottom angle of the second plane;
a first arc-shaped cutting edge is arranged on the third plane, and a second arc-shaped cutting edge is arranged on the fourth plane.
Preferably, a connection hole recessed towards the interior of the drill bit main body is formed in the fifth plane, and threads are arranged on the inner wall of the connection hole.
Preferably, the distance from the first plane to the second plane is 10-30 mm.
Preferably, the first arc-shaped cutting edge and the second arc-shaped cutting edge are arranged in the same direction.
Preferably, the circumferential diameter of the first arc-shaped cutting edge and the circumferential diameter of the second arc-shaped cutting edge are both 1.2 to 1.4 times the length of the fifth plane.
Preferably, the drill main body, the first arc-shaped cutting edge and the second arc-shaped cutting edge are all made of stainless steel.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model provides a cavity is from boring formula stock drill bit is provided with the drill bit main part, is equipped with the arc cutting edge in drill bit main part both sides, and the arc cutting edge can carry out effective cutting to the soil body at the drilling in-process, improves the drilling speed of stock, be provided with in drill bit main part bottom can with stock threaded connection's connecting hole, be convenient for be connected with the stock. The utility model provides an anchor rod drill bit simple structure, convenient operation has guaranteed the quality of stock simultaneously, has improved efficiency of construction and economic benefits.
Drawings
FIG. 1 is a schematic side view of the present example;
FIG. 2 is a schematic front view of the structure of the present example;
FIG. 3 is a schematic cross-sectional view of FIG. 2;
FIG. 4 is a schematic view of the bottom structure of the present example;
fig. 5 is a schematic top view of the present example.
Description of reference numerals: 1. a drill bit body; 2. a first arcuate cutting edge; 3. a second arcuate cutting edge; 4. and connecting the holes.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
As shown in fig. 1 to 5, the present embodiment provides a hollow self-drilling anchor drill bit, including a bit body 1, the bit body 1 having a triangular prism shape, the bit body 1 including a first plane, a second plane, a third plane, a fourth plane, and a fifth plane; the first plane and the second plane are arranged in parallel, the distance between the first plane and the second plane is 20mm, the first plane and the second plane are both in the shape of an isosceles triangle, the length of the bottom edge of the isosceles triangle is 140mm, the length of the waist of the isosceles triangle is 150mm, the third plane and the fourth plane are both connected with the top angle of the first plane and the top angle of the second plane, the third plane, the fourth plane and the fifth plane are all perpendicular to the first plane and the second plane, the areas of the third plane and the fourth plane are equal, and the fifth plane is connected with the bottom angle of the first plane and the bottom angle of the second plane; a first arc-shaped cutting edge 2 is arranged on the third plane, and a second arc-shaped cutting edge 3 is arranged on the fourth plane; and a connecting hole 4 which is sunken towards the interior of the drill bit main body 1 is formed in the fifth plane, and the sunken length of the connecting hole 4 is that threads are arranged on the inner wall of the connecting hole 4.
First arc cutting edge 2 with second arc cutting edge 3 syntropy sets up, the circumference diameter of first arc cutting edge 2 with the circumference diameter of second arc cutting edge 3 is 168mm, and first arc cutting edge 2, second arc cutting edge 3 can be effectively cut the soil body at the in-process of creeping into, improve the drilling rate of stock.
The drill bit main body 1, the first arc-shaped cutting edge 2 and the second arc-shaped cutting edge 3 are made of stainless steel.
Above do the preferred embodiment of the present invention, not limit the protection scope of the present invention according to this, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (6)
1. A hollow self-drilling anchor bit, comprising: the drill bit comprises a drill bit body (1), wherein the drill bit body (1) is in a triangular prism shape, and the drill bit body (1) comprises a first plane, a second plane, a third plane, a fourth plane and a fifth plane;
the first plane and the second plane are arranged in parallel, the first plane and the second plane are both triangular, the third plane and the fourth plane are both connected with the top angle of the first plane and the top angle of the second plane, and the fifth plane is connected with the bottom angle of the first plane and the bottom angle of the second plane;
a first arc-shaped cutting edge (2) is arranged on the third plane, and a second arc-shaped cutting edge (3) is arranged on the fourth plane.
2. A hollow self drilling anchor bit according to claim 1, wherein: and a connecting hole (4) which is sunken towards the interior of the drill bit main body (1) is formed in the fifth plane, and threads are arranged on the inner wall of the connecting hole (4).
3. A hollow self drilling anchor bit according to claim 1, wherein: the distance from the first plane to the second plane is 10-30 mm.
4. A hollow self drilling anchor bit according to claim 1, wherein: the first arc-shaped cutting edge (2) and the second arc-shaped cutting edge (3) are arranged in the same direction.
5. A hollow self drilling anchor bit according to claim 1, wherein: the circumferential diameter of the first arc-shaped cutting edge (2) and the circumferential diameter of the second arc-shaped cutting edge (3) are both 1.2-1.4 times of the length of a fifth plane.
6. A hollow self drilling anchor bit according to claim 1, wherein: the drill bit main body (1), the first arc-shaped cutting edge (2) and the second arc-shaped cutting edge (3) are made of stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220964186.2U CN217106837U (en) | 2022-04-25 | 2022-04-25 | Hollow self-drilling type anchor rod drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220964186.2U CN217106837U (en) | 2022-04-25 | 2022-04-25 | Hollow self-drilling type anchor rod drill bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217106837U true CN217106837U (en) | 2022-08-02 |
Family
ID=82583775
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220964186.2U Active CN217106837U (en) | 2022-04-25 | 2022-04-25 | Hollow self-drilling type anchor rod drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217106837U (en) |
-
2022
- 2022-04-25 CN CN202220964186.2U patent/CN217106837U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209324262U (en) | A kind of drill bit used for geological prospecting | |
| CN217106837U (en) | Hollow self-drilling type anchor rod drill bit | |
| CN212003059U (en) | Drill rod connecting drill tail | |
| CN210918906U (en) | Drilling and deslagging efficient integral spiral three-edged drill rod | |
| CN217300473U (en) | Long pipe shed self-drilling drill bit suitable for completely weathered slate | |
| CN210002395U (en) | steel casing structure for underground comprehensive pipe gallery | |
| CN211646417U (en) | Self-drilling type prestressed soil nail | |
| CN213540299U (en) | Double-path deslagging drill rod | |
| CN201934012U (en) | Hole sweep drilling tool of rotary drilling rig | |
| CN206942666U (en) | A kind of compound self-drilling anchor rod bit | |
| CN219932158U (en) | Shield cutter changing reinforcing structure for water-rich sandy pebble stratum | |
| CN217106852U (en) | Hollow drill bit rod | |
| CN213714331U (en) | Goaf bedrock monitoring mark bedrock header | |
| CN212248253U (en) | Building foundation pit with shock attenuation effect | |
| CN221052569U (en) | Wear-resistant pile tip | |
| CN209040141U (en) | A kind of cross fender pile tooling ensuring hole stake position for pile foundation construction | |
| CN203429635U (en) | Full-protection-casing raking pile guide pipe guide structure | |
| CN220470418U (en) | Rubber bolt for tunnel digging knife | |
| CN211230475U (en) | Construction working face for pipe jacking to penetrate existing building downwards | |
| CN209011774U (en) | A kind of new earth anchor and with the matching used drilling withdrawing device of the earth anchor | |
| CN208151970U (en) | A kind of internal reinforcing type puncture-resistant splash guard | |
| CN216341922U (en) | Triple high-pressure jet grouting pile drill bit | |
| CN209604027U (en) | IV grade of tunnel country rock loopful excavates grouting small pilot pipe | |
| CN216197873U (en) | Drill bit of rock drill | |
| CN218027719U (en) | Quicksand layer foundation pit supporting structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |