CN220167884U - Double-core drill bit for construction engineering - Google Patents
Double-core drill bit for construction engineering Download PDFInfo
- Publication number
- CN220167884U CN220167884U CN202321360713.XU CN202321360713U CN220167884U CN 220167884 U CN220167884 U CN 220167884U CN 202321360713 U CN202321360713 U CN 202321360713U CN 220167884 U CN220167884 U CN 220167884U
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- connector
- barrel
- drilling
- drill
- drill bit
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- 238000010276 construction Methods 0.000 title claims abstract description 13
- 238000005553 drilling Methods 0.000 claims abstract description 71
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 13
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 13
- 241001330002 Bambuseae Species 0.000 claims description 13
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 13
- 239000011425 bamboo Substances 0.000 claims description 13
- 238000007599 discharging Methods 0.000 claims description 12
- 230000009977 dual effect Effects 0.000 claims 5
- 241001074085 Scophthalmus aquosus Species 0.000 claims 1
- 239000002893 slag Substances 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 5
- 238000009435 building construction Methods 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Earth Drilling (AREA)
Abstract
The utility model discloses a double-core drill bit for construction engineering, which comprises a connector, wherein the connector is arranged on an engineering rotary drilling rig, a first drill barrel is arranged at the outer side of the middle section of the connector, a plurality of mud outlet holes are uniformly formed in the upper surface of the first drill barrel, a plurality of first drill teeth are uniformly connected to the lower end surface of the first drill barrel, a connecting barrel is fixedly connected to the outer side of the lower half part of the connector through two locating pins and a plurality of screws, the connecting barrel is sleeved at the outer side of the connector, a second drill barrel is arranged at the lower end of the connecting barrel, a plurality of second drill teeth are uniformly connected to the lower end of the second drill barrel, and the outer diameter size of the second drill barrel is smaller than the inner diameter size of the first drill barrel; according to the utility model, the second drilling teeth under the second drilling barrel are used for drilling the pile holes in small holes, and the first drilling teeth under the first drilling barrel are used for performing secondary pile hole expansion, so that the pile holes reaching the inside diameter are achieved, the efficiency of drilling the pile holes is improved, and the rejection rate of the drill bit is reduced.
Description
Technical Field
The utility model relates to the technical field of building construction, in particular to a double-core drill bit for building engineering.
Background
The foundation pile holes are holes of poured concrete piles which are drilled for reinforcing the underground foundation and improving the bearing capacity and the earthquake resistance of the building foundation; after the foundation pile hole is drilled, a reinforcement cage is put into the hole, and then concrete is poured. The concrete becomes a foundation pile in close contact with the surrounding soil layer after consolidation. The pile-making method saves money and construction time compared with the method of driving concrete piles or steel piles, and is widely used in modern building construction. In order to make the foundation pile bear the tensile force, the foundation pile is bored to the bottom and then the bottom is enlarged, so that the poured foundation pile is thick at the bottom and thin at the top, and the tensile resistance (such as earthquake resistance) is far greater than that of a straight pile by friction alone, and the construction is not troublesome.
For the foundation pile hole of the engineering building, the drill bit is driven to drill through the rotary drilling rig, the drill bit in the prior art is usually a single drill bit, when a foundation pile hole with larger hole diameter is drilled, the single drill bit is required to drill holes firstly, then the reaming drill bit is used for reaming holes, the drilling efficiency is low, and if the pile hole is drilled in place by directly using the drill bit with larger diameter in one step, the drill bit is easy to damage, and the pile hole drilling cost is increased.
Patent application number CN201920706656.3, which is characterized in that: the rotary drilling bit of the engineering driller relates to the technical field of drilling equipment, and is mainly used for solving the problem of low slag discharging efficiency of drilling slag, and comprises a barrel, wherein an upper cover is arranged at the top of the barrel, a torque transmission sleeve is fixedly arranged at the center of the upper cover, a torque transmission internal spline is fixedly arranged in the torque transmission sleeve, the axis of the torque transmission sleeve is collinear with the axis of the barrel, and a sealing tube connected with the lower end of the torque transmission sleeve is arranged in the barrel; the upper cover is provided with a discharge hole for discharging gas and liquid in the cylinder, and the upper cover is fixedly provided with a lifting part. The utility model can be movably sleeved on the drill rod, and can be pulled out from the drill rod when the drill slag is required to be discharged, so that the slag discharging efficiency of drilling is greatly improved, and the utility model has the advantages of simple structure, convenient use, high slag discharging efficiency, energy conservation and the like.
The drill bit movably sleeved on the drill rod is arranged, so that the slag discharging efficiency of drilling is improved, the advantages of simple structure and energy conservation are achieved, but the single drill bit cannot directly and quickly drill a large-diameter pile hole.
Disclosure of Invention
The utility model aims to solve the technical problems that: provided is a double-core drill bit for construction engineering, which is high in efficiency and low in cost.
In order to solve the technical problems, the utility model provides a double-core drill bit for construction engineering, which comprises a connector, wherein the connector is arranged on an engineering rotary drilling rig, a first drilling barrel is arranged on the outer side of the middle section of the connector, a plurality of mud outlet holes are uniformly formed in the upper surface of the first drilling barrel, a plurality of first drilling teeth are uniformly connected to the lower end surface of the first drilling barrel, a connecting barrel is fixedly connected to the outer side of the lower half part of the connector through two positioning pins and a plurality of screws, the connecting barrel is sleeved on the outer side of the connector, a second drilling barrel is arranged at the lower end of the connecting barrel, a plurality of second drilling teeth are uniformly connected to the lower end of the second drilling barrel, and the outer diameter size of the second drilling barrel is smaller than the inner diameter size of the first drilling barrel.
Preferably, the lower half part of the connector is a hollow cylinder, the upper end of the second drilling cylinder is communicated with the hollow cylinder at the lower end of the connector, the two sides of the connector, which are positioned in the hollow cylinder, are respectively provided with a mud discharging groove, and the two mud discharging grooves penetrate through the outer side of the connecting cylinder.
Preferably, the oblique rotation directions of the first drill teeth and the second drill teeth are consistent.
Preferably, the outer ends of the two positioning pins extend to the outer side of the connecting cylinder.
Preferably, the axes of the connector, the first drill barrel, the connecting barrel and the second drill barrel are all collinear.
Preferably, the connector and the first drill barrel are integrally formed, and the connecting barrel and the second drill barrel are integrally formed.
Compared with the prior art, the utility model has the beneficial effects that: the utility model is directly arranged on a drill rod of a rotary drilling rig through a connector, when a pile hole is drilled, the utility model is driven to integrally and rotationally drill, the pile hole is drilled by first carrying out small hole drilling downwards through the second drilling teeth under the second drilling barrel until the first drilling barrel reaches the small hole opening, and then carrying out secondary pile hole expansion outside the small hole through the first drilling teeth under the first drilling barrel, thereby achieving the purpose of drilling the pile hole reaching the standard inner diameter.
Drawings
FIG. 1 is a perspective view of an embodiment of the present utility model;
FIG. 2 is a side view of an embodiment of the present utility model;
FIG. 3 is a cross-sectional view of an embodiment of the present utility model;
the embodiment of the utility model mainly comprises the following element symbols:
the device comprises a connector-1, a mud discharging groove-11, a first drilling barrel-2, a mud outlet-21, a first drilling tooth-3, a connecting barrel-4, a positioning pin-41, a screw-42, a second drilling barrel-5 and a second drilling tooth-6.
Detailed Description
The following describes in further detail the embodiments of the present utility model with reference to the drawings and examples. The following examples are illustrative of the utility model and are not intended to limit the scope of the utility model.
In the description of the present utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
As shown in fig. 1 to 3, a dual-core drill bit for construction engineering comprises a connector 1, the connector 1 is installed on engineering rotary drilling rig, the outside of 1 middle section of connector is provided with first section of thick bamboo 2, evenly open on the upper surface of first section of thick bamboo 2 has a plurality of mud holes 21, the terminal surface evenly is connected with a plurality of first section of thick bamboo 3 of boring down of first section of thick bamboo 2, the outside of 1 lower half of connector is through two locating pin posts 41 and a plurality of screw 42 fixedly connected with connecting cylinder 4, connecting cylinder 4 cover is in the connector 1 outside, connecting cylinder 4 lower extreme is provided with second section of thick bamboo 5, a plurality of second section of thick bamboo 6 of boring down of thick bamboo 5 evenly connects 1, the external diameter size of second section of thick bamboo 5 is less than the internal diameter size of first section of thick bamboo 2 of thick bamboo, second section of thick bamboo 5 is located first section of thick bamboo 2 lower terminal surface below.
The utility model is directly arranged on a drill rod of a rotary drilling rig through the connector 1, when a pile hole is drilled, the utility model is driven to integrally and rotationally drill, the pile hole is drilled by firstly downwards firstly carrying out small hole drilling through the second drilling teeth 6 below the second drilling barrel 5 until the first drilling barrel 2 reaches the small hole opening, and then carrying out secondary pile hole expansion on the outer side of the small hole through the first drilling teeth 3 below the first drilling barrel 2, thereby achieving the purpose of drilling the pile hole reaching the standard inner diameter.
The lower half part of the connector 1 is a hollow cylinder, the upper end of the second drilling cylinder 5 is communicated with the hollow cylinder at the lower end of the connector 1, the two sides of the connector 1, which are positioned in the hollow cylinder, are provided with mud discharging grooves 11, the two mud discharging grooves 11 penetrate through the outer side of the connecting cylinder 4, so that muddy water in a pile hole drilled in the second drilling cylinder 5 is conveniently and rapidly discharged out of the second drilling cylinder 5, and the second drilling cylinder 5 is prevented from being blocked.
The inclination rotation directions of the first drilling teeth 3 and the second drilling teeth 6 are consistent, so that the first drilling barrel 2 and the second drilling barrel 5 can synchronously drill and ream.
The outer ends of the two positioning pin columns 41 extend to the outer side of the connecting cylinder 4, so that the first drilling cylinder 2 or the second drilling cylinder 5 can be conveniently maintained or replaced, and the two positioning pin columns 41 can be removed only by taking out a plurality of screws 42, so that the use is convenient, and the maintenance cost is reduced.
The axes of the connector 1, the first drilling barrel 2, the connecting barrel 4 and the second drilling barrel 5 are all collinear, so that the stability of the center of a pile hole is ensured, and the quality of drilling the pile hole is high; the connector 1 and the first drill cylinder 2 are integrally formed, and the connecting cylinder 4 and the second drill cylinder 5 are integrally formed.
The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that modifications and substitutions can be made by those skilled in the art without departing from the technical principles of the present utility model, and these modifications and substitutions should also be considered as being within the scope of the present utility model.
Claims (6)
1. The utility model provides a building engineering is with two coring bit, includes the connector, the connector is installed on engineering digs rig soon, its characterized in that: the utility model discloses a drilling tool for drilling a hole in a drilling tool, including connector middle section outside, first drilling tool upper surface, first drilling tool lower terminal surface evenly is connected with a plurality of first brill teeth, connector lower half outside is through two locating pin posts and a plurality of screw fixedly connected with connecting cylinder, the connecting cylinder cover is in the connector outside, the connecting cylinder lower extreme is provided with the second and bores a section of thick bamboo, a plurality of second of even connector of second drilling tool lower extreme bores the teeth, the external diameter size of second drilling tool is less than the internal diameter size of first drilling tool.
2. The dual core drill bit for construction engineering according to claim 1, wherein: the lower half part of the connector is a hollow cylinder, the upper end of the second drilling cylinder is communicated with the hollow cylinder at the lower end of the connector, the two sides of the connector, which are positioned in the hollow cylinder, are provided with mud discharging grooves, and the two mud discharging grooves penetrate through the outer side of the connecting cylinder.
3. The dual core drill bit for construction engineering according to claim 2, wherein: the inclined rotation directions of the first drill teeth and the second drill teeth are consistent.
4. A dual core drill bit for construction engineering according to claim 3, wherein: the outer ends of the two positioning pin posts extend to the outer side of the connecting cylinder.
5. The dual core drill bit for construction engineering according to claim 4, wherein: the axes of the connector, the first drill barrel, the connecting barrel and the second drill barrel are all collinear.
6. The dual core drill bit for construction engineering according to claim 5, wherein: the connector and the first drilling barrel are integrally formed, and the connecting barrel and the second drilling barrel are integrally formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321360713.XU CN220167884U (en) | 2023-05-31 | 2023-05-31 | Double-core drill bit for construction engineering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321360713.XU CN220167884U (en) | 2023-05-31 | 2023-05-31 | Double-core drill bit for construction engineering |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220167884U true CN220167884U (en) | 2023-12-12 |
Family
ID=89054777
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321360713.XU Active CN220167884U (en) | 2023-05-31 | 2023-05-31 | Double-core drill bit for construction engineering |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220167884U (en) |
-
2023
- 2023-05-31 CN CN202321360713.XU patent/CN220167884U/en active Active
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