CN204545522U - A kind of durable drill bit - Google Patents
A kind of durable drill bit Download PDFInfo
- Publication number
- CN204545522U CN204545522U CN201520178390.1U CN201520178390U CN204545522U CN 204545522 U CN204545522 U CN 204545522U CN 201520178390 U CN201520178390 U CN 201520178390U CN 204545522 U CN204545522 U CN 204545522U
- Authority
- CN
- China
- Prior art keywords
- grinding block
- drill bit
- groove
- durable
- fixed screw
- 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
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- Polishing Bodies And Polishing Tools (AREA)
Abstract
The utility model relates to grinding tool abrasive material, specifically relate to a kind of durable drill bit, it comprises matrix and grinding block above, described matrix has the groove adding and hold grinding block, and grinding block is placed in a groove, and described groove is the cavity of cuboid, described grinding block is the rectangular shape of identical cavity, described recessed side portions also has fixed screw, and fixed screw is fixed wtih grinding block, and such drill bit has advantage that is more durable in use, difficult drop-off.
Description
Technical field
The utility model relates to grinding tool abrasive material, specifically relates to a kind of drill bit.
Background technology
Drill bit comprises matrix and grinding block above, and grinding block is arranged on the end of matrix, in prior art, grinding block be all less block welding on matrix, the drill bit of this spline structure has the shortcoming that grinding block easily comes off, affects service life.
Summary of the invention
The purpose of this utility model is exactly for above-mentioned shortcoming, provides a kind of drill bit---a kind of durable drill bit of more durable in use, difficult drop-off.
The technical solution of the utility model is achieved in that a kind of durable drill bit, comprises matrix and grinding block above, it is characterized in that: described matrix has the groove adding and hold grinding block, and grinding block is placed in a groove.
Say further, described groove is the cavity of cuboid, and described grinding block is the rectangular shape of identical cavity.
Say further, described recessed side portions also has fixed screw, and fixed screw is fixed wtih grinding block.
The beneficial effects of the utility model are: such drill bit has advantage that is more durable in use, difficult drop-off; Described groove is the cavity of cuboid, and described grinding block is the rectangular shape of identical cavity, has the advantage that difficult drop-off effect is better; Described recessed side portions also has fixed screw, and fixed screw is fixed wtih grinding block, can reach best slip-off preventing effect.
Accompanying drawing explanation
Fig. 1 is the structural representation of the durable drill bit of the utility model.
Wherein: 1, matrix 2, grinding block 3, groove 4, fixed screw.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As shown in Figure 1, a kind of durable drill bit, comprises matrix 1 and grinding block above 2, it is characterized in that: described matrix 1 has the groove 3 adding and hold grinding block, and grinding block 2 is placed in groove 3.
Say further, described groove 3 is cavitys of cuboid, and described grinding block 2 is rectangular shapes of identical cavity.
Say further, described recessed side portions also has fixed screw 4, and fixed screw 4 is fixed wtih grinding block.
The foregoing is only specific embodiment of the utility model, but architectural feature of the present utility model is not limited to this, any those skilled in the art is in field of the present utility model, and the change done or modification are all encompassed in the scope of the claims of the present utility model.
Claims (3)
1. a durable drill bit, comprises matrix and grinding block above, it is characterized in that: described matrix has the groove adding and hold grinding block, and grinding block is placed in a groove.
2. drill bit according to claim 1, is characterized in that: described groove is the cavity of cuboid, and described grinding block is the rectangular shape of identical cavity.
3. drill bit according to claim 1 and 2, is characterized in that: described recessed side portions also has fixed screw, and fixed screw is fixed wtih grinding block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520178390.1U CN204545522U (en) | 2015-03-27 | 2015-03-27 | A kind of durable drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520178390.1U CN204545522U (en) | 2015-03-27 | 2015-03-27 | A kind of durable drill bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204545522U true CN204545522U (en) | 2015-08-12 |
Family
ID=53820687
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520178390.1U Expired - Fee Related CN204545522U (en) | 2015-03-27 | 2015-03-27 | A kind of durable drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204545522U (en) |
-
2015
- 2015-03-27 CN CN201520178390.1U patent/CN204545522U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150812 Termination date: 20160327 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |