CN219281670U - Drilling tool suitable for tunnel drilling - Google Patents
Drilling tool suitable for tunnel drilling Download PDFInfo
- Publication number
- CN219281670U CN219281670U CN202320476681.3U CN202320476681U CN219281670U CN 219281670 U CN219281670 U CN 219281670U CN 202320476681 U CN202320476681 U CN 202320476681U CN 219281670 U CN219281670 U CN 219281670U
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- safety protection
- drill rod
- protection piece
- drilling
- connector
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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Abstract
The utility model discloses a drilling tool suitable for tunnel drilling, which comprises: the drill bit, the drill rod A, the inner pipe assembly, the drill rod B and the safety protection piece; the drill bit is arranged at the front end of the drill rod A, and an inner pipe assembly for extracting the rock core are arranged in the drill rod A; the safety protection piece is of a circular tube structure, the front end of the safety protection piece is provided with a connector, the connector is provided with conical external threads, the rear end of the safety protection piece is provided with a connector, and the connector is provided with conical internal threads; the front end of the safety protection piece is in threaded connection with the rear end of the drill rod A through a joint; the rear end of the safety protection piece is in threaded connection with the front end of the drill rod B through an interface; the middle of the safety protection piece is provided with a protection baffle plate which is provided with a plurality of water injection holes. The detachable safety protection piece is arranged at the joint of the drill rods of the drilling tool, so that the safety protection effect is achieved, and the smooth extraction of the rock core is not influenced; the personal safety of constructors is effectively guaranteed, and the risk of equipment damage is reduced.
Description
Technical Field
The utility model relates to the technical field of tunnel drilling, in particular to a drilling tool suitable for tunnel drilling.
Background
When the tunnel is drilled, upward drilling is often needed to perform construction of an uplink hole, and the construction angle is larger than 0 degree; when the KD type drilling machine works, the self weight of the inner tube assembly is about 10Kg, the weight can reach about 50Kg when the drill rod is fully lifted, the clamping groove depth of the tail spring clamping chamber of the inner tube assembly is about 2-10mm, and the tail clamping buckle (spring clamp) of the inner tube assembly can not bear the weight of the fully-filled drill rod when the ascending hole is constructed, so that the condition that the inner tube assembly and the whole drill rod fall off and slide down in the drill rod frequently occurs, and finally the inner tube assembly and the drill rod can be ejected from the lower end (the position where personnel are connected with the drill rod) of the drill rod through the gravity acceleration, so that personnel injury and equipment damage are caused.
Disclosure of Invention
Aiming at the problems in the prior art, the utility model provides a drilling tool suitable for tunnel drilling, and the inner pipe assembly and the core which slide downwards are blocked by the protective baffle plate, so that the personnel injury and the equipment damage are avoided;
the drilling tool comprises: the drill bit, the drill rod A, the inner pipe assembly, the safety protection piece and the drill rod B; the drill bit is arranged at the front end of the drill rod A, and an inner pipe assembly for extracting the rock core are arranged in the drill rod A; the safety protection piece is of a circular tube structure, the front end of the safety protection piece is provided with a connector, the connector is provided with conical external threads, the rear end of the safety protection piece is provided with a connector, and the connector is provided with conical internal threads; the front end of the safety protection piece is in threaded connection with the rear end of the drill rod A through a connector; the rear end of the safety protection piece is in threaded connection with the front end of the drill rod B through an interface; the safety protection piece in the middle is provided with a protection baffle plate, and the protection baffle plate is provided with a plurality of water injection holes.
Preferably, the safety guard is made of alloy steel, and the thickness of the guard baffle is greater than 0.5mm.
Preferably, the inner diameters of the drill rod A and the drill rod B are 72mm; the protective partition plate is round, and the diameter is 72mm.
Preferably, the diameter of the water injection hole is 3mm.
Preferably, the outer walls of the upper side and the lower side of the safety protection piece are provided with planes.
Compared with the prior art, the utility model has the following beneficial effects:
the detachable safety protection piece is arranged at the joint of the drill rods of the drilling tool, so that the inner pipe assembly and the core which slide downwards are effectively blocked; the safety protection effect can be achieved, and the smooth extraction of the rock core is not affected; the personal safety of constructors is guaranteed, and the risk of equipment damage is reduced.
Drawings
FIG. 1 is a block diagram of a drilling tool adapted for use in underground boring in accordance with the present utility model;
FIG. 2 is a first structural view of a safety shield in accordance with a first embodiment of the present utility model;
FIG. 3 is a second structural view of the safety shield of the first embodiment of the present utility model;
FIG. 4 is a structural view of a safety shield in a second embodiment of the utility model;
in the figure: drill bit-1, drill rod A-2, inner tube-3, inner tube assembly-4, safety guard-5, drill rod B-6, protective partition-7, joint-51, interface-52, plane-53, water injection hole-71.
Detailed Description
The drawings in the embodiments of the present utility model will be combined; the technical scheme in the embodiment of the utility model is clearly and completely described:
as shown in fig. 1 to 3, in a first embodiment of the present utility model, a drilling tool adapted for use in drilling tunnels, comprises: drill bit 1, drill rod A2, inner tube 3, inner tube assembly 4, safety guard 5, drill rod B6; the drill bit 1 is arranged at the front end of the drill rod A2, and an inner tube 3 and an inner tube assembly 4 for extracting cores are arranged in the drill rod A2; the safety protection piece 5 is of a circular tube structure, the front end of the safety protection piece is provided with a connector 51, the connector 51 is provided with a conical external thread, the rear end of the safety protection piece is provided with a connector 52, and the connector 52 is provided with a conical internal thread and is matched with a drill rod, so that the safety protection piece is convenient to connect; the front end of the safety protection piece 5 is in threaded connection with the rear end of the drill rod A2 through a joint 51; the rear end of the safety protection piece 5 is in threaded connection with the front end of the drill rod B6 through an interface 52; the safety protection piece 5 in the middle is provided with a protection baffle 7, a plurality of water injection holes 71 are formed in the protection baffle 7, and the water injection holes 71 are used for injecting water to lubricate and cool the drill bit.
When the tunnel is drilled, the safety protection piece 5 is connected to the connecting part between the drill rods, when the tail buckle of the inner tube assembly cannot bear the weight of the filled rock core, the whole inner tube assembly falls off and slides down in the drill rods, the safety risk of falling of the inner tube assembly in the ascending hole is eliminated through the protection baffle 7, the ascending hole can be smoothly constructed on the premise of safety, the personal safety of constructors is guaranteed, and the risk of equipment damage is reduced.
Specifically, in order to effectively bear the weight of the inner tube assembly and the core and resist the impact force generated by the inner tube assembly and the core, the safety guard 5 is made of alloy steel, and the thickness of the guard baffle 7 is greater than 0.5mm and can bear the weight of greater than 100 Kg.
Specifically, the inner diameters of the drill rod A2 and the drill rod B6 are 72mm; the protective baffle 7 is round, has a diameter of 72mm and keeps consistent with the inner diameter of the drill rod;
specifically, the diameter of the water injection hole 71 is 3mm.
In a second embodiment of the present utility model, as shown in fig. 4, unlike the first embodiment, the outer walls of the upper and lower sides of the safety shield 5 are provided with flat surfaces 53; the safety protection piece 5 is convenient to assemble and disassemble.
The foregoing description is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art should be able to apply equivalents and modifications according to the technical scheme and the modified concept of the present utility model within the scope of the present utility model.
Claims (5)
1. A drilling tool adapted for use in drilling an excavation, comprising: the drill bit, the drill rod A, the inner pipe assembly and the drill rod B; the method is characterized in that: also comprises a safety shield; the drill bit is arranged at the front end of the drill rod A, and an inner pipe assembly for extracting the rock core are arranged in the drill rod A; the safety protection piece is of a circular tube structure, the front end of the safety protection piece is provided with a connector, the connector is provided with conical external threads, the rear end of the safety protection piece is provided with a connector, and the connector is provided with conical internal threads; the front end of the safety protection piece is in threaded connection with the rear end of the drill rod A through a connector; the rear end of the safety protection piece is in threaded connection with the front end of the drill rod B through an interface; the safety protection piece in the middle is provided with a protection baffle plate, and the protection baffle plate is provided with a plurality of water injection holes.
2. A drilling tool adapted for use in drilling an excavation according to claim 1, wherein: the safety guard is made of alloy steel, and the thickness of the guard baffle is greater than 0.5mm.
3. A drilling tool adapted for use in drilling an excavation as claimed in claim 2, wherein: the inner diameters of the drill rod A and the drill rod B are 72mm; the protective partition plate is round, and the diameter is 72mm.
4. A drilling tool adapted for use in drilling tunnels according to claim 3, wherein: the diameter of the water injection hole is 3mm.
5. A drilling tool adapted for use in drilling an excavation according to claim 1, wherein: the outer walls of the upper side and the lower side of the safety protection piece are provided with planes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320476681.3U CN219281670U (en) | 2023-03-14 | 2023-03-14 | Drilling tool suitable for tunnel drilling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320476681.3U CN219281670U (en) | 2023-03-14 | 2023-03-14 | Drilling tool suitable for tunnel drilling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219281670U true CN219281670U (en) | 2023-06-30 |
Family
ID=86908888
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320476681.3U Active CN219281670U (en) | 2023-03-14 | 2023-03-14 | Drilling tool suitable for tunnel drilling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219281670U (en) |
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2023
- 2023-03-14 CN CN202320476681.3U patent/CN219281670U/en active Active
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