CN210080801U - Four-edge five-pit electric hammer drill bit - Google Patents
Four-edge five-pit electric hammer drill bit Download PDFInfo
- Publication number
- CN210080801U CN210080801U CN201920793540.8U CN201920793540U CN210080801U CN 210080801 U CN210080801 U CN 210080801U CN 201920793540 U CN201920793540 U CN 201920793540U CN 210080801 U CN210080801 U CN 210080801U
- Authority
- CN
- China
- Prior art keywords
- drill bit
- bit
- tool bit
- electric hammer
- hammer drill
- 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
Links
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 19
- 239000000956 alloy Substances 0.000 claims abstract description 19
- 238000005553 drilling Methods 0.000 abstract description 5
- 229910000831 Steel Inorganic materials 0.000 abstract description 4
- 230000003014 reinforcing effect Effects 0.000 abstract description 4
- 239000010959 steel Substances 0.000 abstract description 4
- 229910001181 Manganese brass Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
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- Processing Of Stones Or Stones Resemblance Materials (AREA)
Abstract
The utility model relates to a five hole electric hammer drill bits of four swords that can break reinforcing bar in the concrete, including the electric hammer drill bit, there is a monolithic K shape twolip tool bit and monolithic K shape twolip tool bit to look sideways at and be middle bellied font structure of falling V in closing the tool bit of electric hammer drill bit terminal surface, and the small alloy single-edge tool bit on the left and the small alloy single-edge tool bit on the right are located monolithic K shape twolip tool bit both sides respectively. The advantages are that: firstly, the steel bars in the concrete can be conveniently and gradually broken without damaging the electric hammer drill bit; secondly, the roundness precision of the drill hole of the drill bit is high; thirdly, the drill bit cuts with four edges, so that the drilling efficiency is high, and the service life of the drill bit is long; fourthly, the drill handle of the drill bit is designed into a three-pit two-groove structure, so that the clamping performance of the drill bit is more stable and reliable, and the drill bit bears a high-power drill gun.
Description
Technical Field
The utility model relates to a can break five hole electric hammer drill bits of four swords of reinforcing bar in the concrete belongs to electric hammer drill bit and makes the field.
Background
CN205219457U, the name "electric hammer drill bit", it includes first recess, first baffle, second baffle, tool bit, runner, hypotenuse, first spiral chip groove, cutter arbor handle, second spiral chip groove, second recess, first baffle, second recess, second baffle, second spiral chip groove, first spiral chip groove are arranged at interval each other, the one end and the first spiral chip groove of cutter arbor are connected, the other end and the cutter arbor handle of first spiral chip groove are fixed, runner, hypotenuse all are located between tool bit and the first recess. The method has the following defects: the reinforcing bars in the concrete cannot be broken.
Disclosure of Invention
The design purpose is as follows: on the basis among the background art, design one kind and can break the five hole electric hammer drill bits of four edges of reinforcing bar in the concrete, and the drill bit drilling circularity precision is high, and drilling efficiency is high, and the drill bit is longe-lived.
The design scheme is as follows: in order to achieve the above design objectives. The utility model discloses in structural design, 1 is monolithic K shape twolip tool bit (fig. 2) among the alloy tool bit, and 2 and 3 are little alloy single-edge tool bit in fig. 2, are called four-edge alloy tool bit drill bit. The alloy cutter head of the drill bit is of a four-edge structure, the middle double-edge cutter head is of an inverted V-shaped structure, the two sides of the double-edge cutter head are respectively provided with small inverted V-shaped alloy single-edge cutter heads, but the small inverted V-shaped alloy single-edge cutter heads are close to the double-edge cutter heads and are lower than the double-edge cutter heads, so that a steel bar breaking part is formed, and then steel bars in concrete can be broken.
The technical scheme is as follows: the utility model provides a five hole electric hammer drill bits of four swords, includes the electric hammer drill bit, there is a monolithic K shape twolip tool bit and monolithic K shape twolip tool bit to look sideways at in the tool bit that closes of electric hammer drill bit terminal surface and is middle bellied font structure of falling V, and the small alloy single-edge tool bit in the left side and the small alloy single-edge tool bit in the right are located monolithic K shape twolip tool bit both sides respectively.
Compared with the background art, the utility model can firstly gradually break the steel bar in the concrete and can not damage the electric hammer drill bit; secondly, the drill handle of the drill is designed into a three-pit two-groove structure, so that the clamping performance of the drill is more stable and reliable; and the drilling roundness precision of the drill bit is high, the drilling efficiency is high, and the service life of the drill bit is long.
Drawings
Fig. 1 is a schematic structural diagram of a four-edge five-pit electric hammer bit.
Fig. 2 is a schematic view of the head structure of fig. 1.
Fig. 3 is a schematic view of the direction a-a in fig. 1.
Fig. 4 is a schematic view of a portion of the photograph of fig. 1.
Detailed Description
Example 1: reference is made to fig. 1-4. The utility model provides a five hole electric hammer drill bits of four swords, includes the electric hammer drill bit, there is a monolithic K shape twolip tool bit 1 and monolithic K shape twolip tool bit 1 side-looking in the combination tool bit of electric hammer drill bit terminal surface to be bellied structure of falling V font in the middle of being, and the small alloy twolip tool bit 2 on the left side and the small alloy twolip tool bit 3 on the right are located monolithic K shape twolip tool bit 1 both sides respectively. The left small alloy single-edge tool bit 2 and the right small alloy single-edge tool bit 3 are respectively in an inverted V-shaped structure in side view. The electric hammer drill bit handle is provided with three pits with two grooves.
The alloy cutter head and the notch of the drill body are brazed by high-manganese brass, and the welding strength is high. The drill handle of the drill bit is three pits and two grooves, which are called five pits.
It is to be understood that: although above-mentioned embodiment is right the utility model discloses a design has done more detailed word description, but these word descriptions, are only right the utility model relates to a simple word description of idea, rather than right the utility model relates to a restriction of idea, any do not surpass the utility model relates to a combination, increase or the modification of idea all fall into the utility model discloses a within the protection scope.
Claims (3)
1. The utility model provides a five hole electric hammer drill bits of four swords, includes electric hammer drill bit, characterized by: a single K-shaped double-edged tool bit (1) and a single K-shaped double-edged tool bit (1) are arranged in a combined tool bit of the end face of the electric hammer, the side view of the single K-shaped double-edged tool bit is of an inverted V-shaped structure with a convex middle, and a left small alloy single-edged tool bit (2) and a right small alloy single-edged tool bit (3) are respectively positioned on two sides of the single K-shaped double-edged tool bit (1).
2. The four-blade five-pit electric hammer drill bit according to claim 1, wherein: the left small alloy single-edge tool bit (2) and the right small alloy single-edge tool bit (3) are respectively in an inverted V-shaped structure in side view.
3. The four-blade five-pit electric hammer drill bit according to claim 1, wherein: the electric hammer drill bit handle is provided with three pits and two grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920793540.8U CN210080801U (en) | 2019-05-30 | 2019-05-30 | Four-edge five-pit electric hammer drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920793540.8U CN210080801U (en) | 2019-05-30 | 2019-05-30 | Four-edge five-pit electric hammer drill bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210080801U true CN210080801U (en) | 2020-02-18 |
Family
ID=69480792
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920793540.8U Expired - Fee Related CN210080801U (en) | 2019-05-30 | 2019-05-30 | Four-edge five-pit electric hammer drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210080801U (en) |
-
2019
- 2019-05-30 CN CN201920793540.8U patent/CN210080801U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200218 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |