CN205532311U - Boring drill bit of concrete - Google Patents
Boring drill bit of concrete Download PDFInfo
- Publication number
- CN205532311U CN205532311U CN201620387459.6U CN201620387459U CN205532311U CN 205532311 U CN205532311 U CN 205532311U CN 201620387459 U CN201620387459 U CN 201620387459U CN 205532311 U CN205532311 U CN 205532311U
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- Prior art keywords
- drilling rod
- hole
- cutter head
- wall
- drill bit
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Abstract
The utility model discloses a boring drill bit of concrete, it includes drillstock (1), drilling rod (2) and tool bit portion (3), tool bit portion (3) set up the lower extreme in drilling rod (2), drillstock (1) set up the top in drilling rod (2), be equipped with a plurality of chip grooves (4) on the circumference wall of drilling rod (2), the lower extreme of drilling rod (2) towards interior be equipped with one with circular indent (5) of drilling rod (2) coaxial line, tool bit portion (3) set up on the lower extreme circumference wall of the circular indent of drilling rod (2) lower extreme (5), circular indent (5) interior detachable connections quire headstock (6), the lower extreme of tool bit seat (6) is equipped with vice tool bit (8), and the bottom of vice tool bit (8) is flat mutually with the bottom of tool bit portion (3). The difficult operating efficiency height that blocks up, drills of this boring drill bit of concrete chip groove, penetration rate is fast.
Description
Technical field
This utility model relates to boring bar tool technical field, specifically be a kind of concrete drill hole drill bit.
Background technology
In the build process of road maintenance or power tower, it is typically necessary on the ground of concrete boring, in order to road sets
Execute or the fixed installation of power tower.When drill bit is holed on concrete, drilling efficiency and chip removal the most smooth and easy be affect bit performance,
The key factor of quality.Because chip removal the most freely can cause rate of penetration slow, bit wear is fast, service life is short.In order to solve
Chip removal problem the most smoothly, to alleviate bit wear, to improve bore operation efficiency, it is vertical that people are typically arranged on drill bit
Chip area, is improved the chip removal ability of drill bit, but the chip area being vertically arranged is at concrete drill hole by the quantity increasing chip area
During easily blocked by dust, need the dust in timely cleaning chip area, bore operation otherwise can be caused inefficient；
It addition, this bit bore efficiency of prior art is low, rate of penetration is slow.
Utility model content
The technical problems to be solved in the utility model is, overcomes the defect of above prior art, it is provided that a kind of chip area is not easily blocked,
Bore operation efficiency is high, the concrete drill hole drill bit that penetration rate is fast.
Technical solution of the present utility model is to provide a kind of concrete drill hole drill bit with following structure: it includes boring
Handle, drilling rod and cutter head portion, described cutter head portion is arranged on the lower end of drilling rod, and described drillstock is arranged on the top of drilling rod, described
The circumferential wall of drilling rod is provided with multiple chip area, and the lower surface of described drilling rod is provided inwardly with the circular indent of one and drilling rod coaxial line,
Described cutter head portion is arranged on the lower circumferential wall of drilling rod lower end circle indent；Removable connection one cutter in described circular indent
Headstock, the lower end of described tool tip is provided with secondary cutter head, and the bottom of secondary cutter head is equal with the bottom in cutter head portion.
After using above structure, this utility model concrete drill hole with drill bit compared with prior art, has the advantage that this mixes
Solidifying native boring drill bit uses and connects tool tip in the circular indent of drilling rod lower end, and there is secondary cutter head tool tip lower end, so exists
When the cutter head portion of this concrete drill hole drill bit holes, concrete is played well cutting and fragmentation by its secondary cutter head, so
The powder making concrete more can be discharged in time, and has the auxiliary bore hole effect of secondary cutter head, so that its drilling efficiency is higher, and boring
Speed is fast.
As preferably, described tool tip includes that pedestal, the upper end of described pedestal are provided with locating dowel, and the lower end of described pedestal is provided with
Convex annular wall, the circumferencial direction of the described the most convex wall of secondary cutter head is distributed in the lower end of convex annular wall, described pedestal circumferential wall
Being provided with loop connecting wall, described loop connecting wall is screwed with the inwall of circular indent and is connected.Connecting tool tip
Time, tool tip is placed in circular indent, and by screw by the loop connecting wall in pedestal circumferential wall and circular indent
Wall is fixing to be connected.
Improving as one, the interior bottom wall central of described circular indent is provided with a screwed hole in being provided with hole, location, and hole, location,
Described locating dowel is arranged in hole, location, and the center of tool tip is provided with a connecting hole, connects a screw rod in described connecting hole,
And the free end of screw rod is connected with the screwed hole spiral in hole, location.When connecting tool tip, this locating dowel is arranged in hole, location,
Then tool tip being fixed with drilling rod by screw rod, this locating dowel can ensure axis and the brill of tool tip with coordinating of hole, location
Bar coaxial line.
As preferably, described chip area is that the little upper end width of lower end width is big and inwall is the chip area of arc surface.This chip area
For the little upper end width of lower end width is big and inwall is arc surface, when drilling bit high-speed rotary operation, can be fast by being easy to concrete powder
Speed is discharged, and prevents chip area from blocking, thus accelerates bore operation efficiency.
Accompanying drawing explanation
Fig. 1 is the structural representation of this utility model concrete drill hole drill bit.
Fig. 2 is the polycrystalline substance schematic diagram of this utility model concrete drill hole drill bit.
Fig. 3 is the tool tip attachment structure schematic diagram of this utility model concrete drill hole drill bit.
As shown in the figure:
1, drillstock, 2, drilling rod, 3, cutter head portion, 4, chip area, 5, circular indent, 6, tool tip, 7, convex annular wall,
8, secondary cutter head, 9, pedestal, 10, locating dowel, 11, loop connecting wall, 12, connecting hole, 13, screw rod, 14, hole, location,
15, screwed hole.
Detailed description of the invention
With specific embodiment, this utility model is described in further detail below in conjunction with the accompanying drawings.
Show with Fig. 3 as shown in Figure 1, Figure 2；
This utility model concrete drill hole drill bit, it includes that drillstock 1, drilling rod 2 and cutter head portion 3, described cutter head portion 3 are arranged
In the lower end of drilling rod 2, described drillstock 1 is arranged on the top of drilling rod 2, and the circumferential wall of described drilling rod 2 is provided with multiple chip removal
Groove 4, the lower surface of described drilling rod 2 is provided inwardly with the circular indent 5 of one and drilling rod 2 coaxial line, and described cutter head portion 3 is arranged on
On the lower circumferential wall of drilling rod 2 lower end circle indent 5；In described circular indent 5, removable connection one tool tip 6, described
The lower end of tool tip 6 is provided with secondary cutter head 8, and the bottom of secondary cutter head 8 is equal with the bottom in cutter head portion 3.
Described tool tip 6 includes that pedestal 9, the upper end of described pedestal 9 are provided with locating dowel 10, and the lower end of described pedestal 9 is provided with
Convex annular wall 7, the circumferencial direction of the described the most convex wall of secondary cutter head 87 is distributed in the lower end of convex annular wall 7, described base
Seat 9 circumferential wall are provided with loop connecting wall 11, and described loop connecting wall 11 is screwed with the inwall of circular indent 5
Connect.
The interior bottom wall central of described circular indent 5 is provided with a screwed hole 15 in being provided with hole 14, location, and hole 14, location, described
Locating dowel 10 be arranged in hole 14, location, and the center of tool tip 6 is provided with a connecting hole 12, in described connecting hole 12
Connect a screw rod 13, and the free end of screw rod 13 is connected with screwed hole 15 spiral in hole 14, location.
Described chip area 4 is the chip area 4 that the little upper end width of lower end width is big and inwall is arc surface.
Claims (4)
1. a concrete drill hole drill bit, it includes drillstock (1), drilling rod (2) and cutter head portion (3), described cutter head portion
(3) being arranged on the lower end of drilling rod (2), described drillstock (1) is arranged on the top of drilling rod (2), described drilling rod (2)
Circumferential wall is provided with multiple chip area (4), it is characterised in that: the lower surface of described drilling rod (2) be provided inwardly with one with drilling rod (2)
The circular indent (5) of coaxial line, described cutter head portion (3) is arranged on the lower circumferential of drilling rod (2) lower end circle indent (5)
On wall；Removable connection one tool tip (6) in described circular indent (5), the lower end of described tool tip (6) is provided with secondary cutter
Head (8), and the bottom of secondary cutter head (8) is equal with the bottom of cutter head portion (3).
Concrete drill hole drill bit the most according to claim 1, it is characterised in that: described tool tip (6) includes base
Seat (9), the upper end of described pedestal (9) is provided with locating dowel (10), and the lower end of described pedestal (9) is provided with convex annular wall (7),
The circumferencial direction of described secondary cutter head (8) the most convex wall (7) is distributed in the lower end of convex annular wall (7), described pedestal (9)
Circumferential wall is provided with loop connecting wall (11), and described loop connecting wall (11) passes through screw with the inwall of circular indent (5)
Fixing connection.
Concrete drill hole drill bit the most according to claim 2, it is characterised in that: the inner bottom of described circular indent (5)
Being provided with a screwed hole (15) in being provided with hole, location (14), and hole, location (14) in wall in the heart, described locating dowel (10) sets
Put in hole, location (14), and the center of tool tip (6) is provided with a connecting hole (12), connects in described connecting hole (12)
Connect a screw rod (13), and the free end of screw rod (13) is connected with screwed hole (15) spiral in hole, location (14).
Concrete drill hole drill bit the most according to claim 1, it is characterised in that: described chip area (4) is lower end
The chip area (4) that the little upper end width of width is big and inwall is arc surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620387459.6U CN205532311U (en) | 2016-04-29 | 2016-04-29 | Boring drill bit of concrete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620387459.6U CN205532311U (en) | 2016-04-29 | 2016-04-29 | Boring drill bit of concrete |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205532311U true CN205532311U (en) | 2016-08-31 |
Family
ID=56794579
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620387459.6U Active CN205532311U (en) | 2016-04-29 | 2016-04-29 | Boring drill bit of concrete |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205532311U (en) |
-
2016
- 2016-04-29 CN CN201620387459.6U patent/CN205532311U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 315166 Houlong Village, Longguan Township, Haishu District, Ningbo City, Zhejiang Province Patentee after: Ningbo Shendian Tools Co., Ltd. Address before: 315166 Houlong Village, Longguan Township, Yinzhou District, Ningbo City, Zhejiang Province Patentee before: Ningbo Maike Pante Electric Tool Co., Ltd. |