CN203742464U - Spot driller drill bit telescopic combined sleeve - Google Patents
Spot driller drill bit telescopic combined sleeve Download PDFInfo
- Publication number
- CN203742464U CN203742464U CN201320885557.9U CN201320885557U CN203742464U CN 203742464 U CN203742464 U CN 203742464U CN 201320885557 U CN201320885557 U CN 201320885557U CN 203742464 U CN203742464 U CN 203742464U
- Authority
- CN
- China
- Prior art keywords
- drill bit
- movable component
- combination
- combined sleeve
- combination cover
- 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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Abstract
The utility model discloses a spot driller drill bit telescopic combined sleeve which is characterized in that the combined sleeve is composed of a combined sleeve base, a drill bit and a movable component, the combined sleeve base is a cylinder, a cavity penetrates through the middle of the combined sleeve base, an annular boss is arranged at the lower end of the combined sleeve base, a moving groove for a locating ball to move is formed in the inner wall of an inner cavity of the boss, and the locating ball is arranged on the movable component. The movable component is arranged in the combined sleeve, when the drill bit of a spot driller is used, the drill bit stretches outwards to drive the movable component, the length, exposed in the air, of the drill bit is reduced, and the spot driller drill bit telescopic combined sleeve can protect the drill bit.
Description
Technical field
The utility model relates to the flexible combination cover of a kind of some drill bit of drilling machine.
Background technology
In rig today of universalness day by day, the development of this equipment of some rig has reached its maturity, but ripe machine also has improved space again, in view of the use procedure of a drill bit of drilling machine more single, not protected at it, and working strength is high, in the high situation of frequency, very likely cause drill bit bending, wearing and tearing even fracture, therefore, drill bit to a rig improves, it is the development need that meets human society that thereby the drill bit of protection point rig can increase its application life, therefore seek a kind of structure that can protect some drill bit of drilling machine and seem very necessary.
Utility model content
The utility model is for reaching above object; provide a kind of and be provided with movable component in combination cover inside; in the time that the drill bit of a rig uses; drill bit can drive movable component toward external extension; make the exposed skyborne contraction in length of drill bit, and then play the flexible combination cover of some drill bit of drilling machine of protection drill bit effect.
For addressing the above problem, the utility model adopts following technical proposals:
The flexible combination cover of a kind of some drill bit of drilling machine, this combination cover by combining cover pedestal, drill bit, movable component three parts form, described combination cover pedestal has the cylinder that runs through cavity in the middle of being, there is round ring boss combination cover pedestal lower end, in boss, cavity wall has the loose slot for place kick activity, and described place kick is arranged on movable component.
Further, described drill bit is overlapped pedestal middle cavity and is not contacted mutually by combination, is provided with projection on drill bit, and described projection and described movable component cooperatively interact.
Further, described movable component inner chamber lower end is jagged to be coordinated with projection, and movable component outer wall upper end is provided with place kick.
Further, described loose slot lower end does not exceed the bottom of combination cover pedestal round ring boss.
The flexible combination cover of this drill bit of drilling machine is made up of combination cover pedestal, movable component and drill bit three parts respectively, there is round ring boss combination cover pedestal lower end, loose slot is arranged on to the inwall of round ring boss, connected movable component can be limited in to the inside of round ring boss, thereby restraint assembly can excessively not stretch out, and the bottom of loose slot does not exceed the reason of round ring boss and is also that restriction is positioned at the position of place kick wherein, avoid movable component to depart from the constraint of combination cover pedestal.
The inner chamber of movable component has the breach matching with drill bit projection, thereby the position of restriction drill bit on movable component both can drive movable component to move downward when drill bit down moves; The outer wall of movable component is provided with place kick, and the position of place kick does not exceed the upper end of movable component, thereby avoids place kick to depart from the constraint of movable component.
In the time not using this flexible combination cover, the top of movable component overlaps with the upper end of round ring boss, in use, drill bit drives movable component to stretch out outward, because the place kick on movable component is subject to the restriction of loose slot, movable component can not deviate from the constraint of combination cover pedestal, therefore can strengthen the unsettled position of drill bit by outer and interior, has therefore strengthened the working strength of drill bit.
Overlap on pedestal with combination owing to the travel paths of drill bit being limited to movable component, in the course of work therefore moving up and down at drill bit, can improve a brill accuracy rate, avoid, because of a waste of material that brill position deviation causes, improving the quality of products.
Adopt the flexible combination of the some drill bit of drilling machine tackling of technique scheme to have following beneficial effect:
1. strengthening effect is good, is coated with movable component on drill bit, and movable component outside is coated with combination cover pedestal, and with respect to drill bit is directly aloft exposed, the utility model is the structural strength of strengthening point drill bit of drilling machine effectively;
2. rational in infrastructure, have movable component and combination cover pedestal from inside to outside to strengthen the outer protection layer of drill bit in the outer setting of drill bit, and movable component can be along with the interior external extension of drill bit with its inner and outer movable, rational in infrastructure and ingenious;
3. long service life, for strengthening movable component and the combination cover pedestal of bit exterior rigidity, can protect drill bit not easily damaged effectively, has therefore increased the application life of drill bit;
4. service precision is high, because the running stroke of drill bit is fixed, the position that therefore drill bit point bores in the time using drill bit is also fixed, and repeats to be a little drilled in same position and can reach the steadiness of its running, thereby can improve its service precision.
Brief description of the drawings
Figure 1 shows that the flexible combination cover of the utility model point drill bit of drilling machine sectional view.
Description of reference numerals: 1, combination cover pedestal; 2, drill bit; 3, loose slot; 4, place kick; 5, movable component; 6, projection.
Detailed description of the invention
Below in conjunction with accompanying drawing and detailed description of the invention, the utility model is described in further detail:
As shown in Figure 1, the flexible combination cover of this drill bit of drilling machine, this combination cover by combining cover pedestal 1, drill bit 2, movable component 5 three parts form, described combination cover pedestal 1 is the middle cylinder that runs through cavity that has, there is round ring boss combination cover pedestal 1 lower end, in boss, cavity wall has the loose slot 3 for place kick 4 activities, and described place kick 4 is arranged on movable component 5.Described drill bit 2 is overlapped pedestal 1 middle cavity and is not contacted mutually by combination, on drill bit 2, is provided with projection, and described projection and described movable component 5 cooperatively interact.Described movable component 5 inner chamber lower ends are jagged to be coordinated with projection, and movable component 5 outer wall upper ends are provided with place kick 4.Described loose slot 3 lower ends do not exceed the bottom of combination cover pedestal 1 round ring boss.
The flexible combination cover of this drill bit of drilling machine is made up of combination cover pedestal 1, movable component 5 and drill bit 2 three parts respectively, there is round ring boss combination cover pedestal 1 lower end, loose slot 3 is arranged on to the inwall of round ring boss, connected movable component 5 can be limited in to the inside of round ring boss, thereby restraint assembly 5 can excessively not stretch out, and the bottom of loose slot 3 does not exceed the reason of round ring boss and is also that restriction is positioned at the position of place kick 4 wherein, avoid movable component 5 to depart from the constraint of combination cover pedestals 1.
The inner chamber of movable component 5 has the breach matching with drill bit 2 projections, thereby the position of restriction drill bit 2 on movable component 5 both can drive movable component 5 to move downward when drill bit 2 down moves; The outer wall of movable component 5 is provided with place kick 4, and the position of place kick 4 does not exceed the upper end of movable component 5, thereby avoids place kick 4 to depart from the constraint of movable component 5.
In the time not using this flexible combination cover, the top of movable component 5 overlaps with the upper end of round ring boss, in use, drill bit 2 drives movable component 5 to stretch out outward, because the place kick 4 on movable component 5 is subject to the restriction of loose slot 3, movable component 5 can not deviate from the constraint of combination cover pedestal 1, therefore can strengthen the unsettled position of drill bit 2 by outer and interior, has therefore strengthened the working strength of drill bit 2.
Claims (4)
1. the flexible combination cover of some drill bit of drilling machine, it is characterized in that, described combination cover by combining cover pedestal, drill bit, movable component three parts form, described combination cover pedestal has the cylinder that runs through cavity in the middle of being, there is round ring boss combination cover pedestal lower end, in boss, cavity wall has the loose slot for place kick activity, and described place kick is arranged on movable component.
2. combination is overlapped according to claim 1, it is characterized in that, described drill bit is overlapped pedestal middle cavity and do not contacted mutually by combination, is provided with projection on drill bit, and described projection and described movable component cooperatively interact.
3. combination is overlapped according to claim 2, it is characterized in that, described movable component inner chamber lower end is jagged to be coordinated with projection, and movable component outer wall upper end is provided with place kick.
4. combination is overlapped according to claim 1, it is characterized in that, described loose slot lower end does not exceed the bottom of combination cover pedestal round ring boss.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320885557.9U CN203742464U (en) | 2013-12-31 | 2013-12-31 | Spot driller drill bit telescopic combined sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320885557.9U CN203742464U (en) | 2013-12-31 | 2013-12-31 | Spot driller drill bit telescopic combined sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203742464U true CN203742464U (en) | 2014-07-30 |
Family
ID=51342281
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320885557.9U Expired - Fee Related CN203742464U (en) | 2013-12-31 | 2013-12-31 | Spot driller drill bit telescopic combined sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203742464U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104772501A (en) * | 2015-05-07 | 2015-07-15 | 杜杭华 | Telescopic electric drill |
| CN107605405A (en) * | 2017-11-03 | 2018-01-19 | 宋新祥 | A kind of oil bit |
-
2013
- 2013-12-31 CN CN201320885557.9U patent/CN203742464U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104772501A (en) * | 2015-05-07 | 2015-07-15 | 杜杭华 | Telescopic electric drill |
| CN107605405A (en) * | 2017-11-03 | 2018-01-19 | 宋新祥 | A kind of oil bit |
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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: 20140730 Termination date: 20171231 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |