CN2391719Y - Round hole saw - Google Patents
Round hole saw Download PDFInfo
- Publication number
- CN2391719Y CN2391719Y CN 99218452 CN99218452U CN2391719Y CN 2391719 Y CN2391719 Y CN 2391719Y CN 99218452 CN99218452 CN 99218452 CN 99218452 U CN99218452 U CN 99218452U CN 2391719 Y CN2391719 Y CN 2391719Y
- Authority
- CN
- China
- Prior art keywords
- hole saw
- garden
- material returned
- utility
- model
- 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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- Processing Of Stones Or Stones Resemblance Materials (AREA)
Abstract
The utility model relates to a circular hole saw for machining circular holes on building materials. A drill head locating rod of the utility model is locked with a material return rod connected with the left screw threads of a friction sleeve, and the circular hole saw is connected with the material return rod. When the drill head locating rod rotates deasil, the circular holes are sawed and cut by the circular hole saw; when the drill head locating rod rotates widdershins, waste material blocks in the circular holes are pushed by the material return rod. The utility model has the advantages of reduced labour intensity and raised man hour efficiency.
Description
The utility model relates to a kind of specific purpose tool in building materials processing hole, garden.
Existing garden hole saw is made up of location fluted drill and garden hole saw, and when hole, sawing garden, the dead meal piece difficulty of removing in the hole, garden is bigger, generally have to adopt sled, cutter broken material piece, just can be processed into the hole, garden of prior requirement, this method processing hole, sawing garden, when both taking a lot of work, labour intensity is big again.
The utility model design provides a kind of garden hole saw that has the material returned structure of the dead meal piece hole, dismounting garden in, can overcome that existing garden hole saw will be prized by hand, the defective of the heavy work of the scrap in the tooth dismounting hole, garden.
Realize the technical conceive scheme of above-mentioned purpose, the utility model is on the architecture basics of existing garden hole saw, has set up material returned structure, and it includes the drill bit backstay, material returned bar, and friction sleeve, garden hole saw and material returned seat, the drill bit backstay connects with material returned rod lock.Material returned bar connects with the friction sleeve left-hand thread, and friction sleeve connects with the friction of material returned seat.
The utility model has designed by the drill bit backstay, the unloading mechanism that material returned bar and friction sleeve are formed, and the rotation of drill bit backstay up time drives hole, crown saw sawing garden; Drill bit backstay inverse time rotation, material returned masthead goes out the discarded wooden unit in the hole, garden, moulds piece or other useless pieces, have simple in structure, easy to use, rapid operation and improve the advantage of work efficiency.
Now, explanation with reference to the accompanying drawings and the narration of embodiment are to detailed being described of technology contents of the present utility model.
Fig. 1 is the utility model topology view.
Drill bit backstay 1 of the present utility model locks connection with material returned bar 2 by holding screw 4, garden hole saw 6 is by screw 5 friction sleeve 3 that is fixedly connected, and mouthful friction of pulling out that friction sleeve 3 is pressed on material returned seat 7 connects, and material returned bar 2 is provided with left-hand thread, connect with the friction sleeve left-hand thread, as shown in Figure 1.Drill bit backstay 1 up time is rotated, and drives hole, hole saw 6 rotating cutting garden, garden through material returned bar 2 and friction sleeve 3; Drill bit backstay 1 inhour is rotated, and material returned bar 2 is left-handed, moves to the drill bit direction, and reaction force acts is indefinite in the friction sleeve 3 that connects with 7 frictions of material returned seat, and its thrust is with regard to the as easy as rolling off a log scrap that ejects in the hole, garden.
Claims (2)
1, a kind of garden hole saw, it includes the drill bit backstay, material returned bar, friction sleeve, garden hole saw and material returned seat is characterized in that drill bit backstay (1) connects with material returned bar (2) locking, the same friction sleeve of material returned bar (2) (3) left-hand thread connects.
2,, it is characterized in that friction sleeve (3) connects with material returned seat (7) friction by the described a kind of garden of claim 1 hole saw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99218452 CN2391719Y (en) | 1999-07-29 | 1999-07-29 | Round hole saw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99218452 CN2391719Y (en) | 1999-07-29 | 1999-07-29 | Round hole saw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2391719Y true CN2391719Y (en) | 2000-08-16 |
Family
ID=34009644
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99218452 Expired - Fee Related CN2391719Y (en) | 1999-07-29 | 1999-07-29 | Round hole saw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2391719Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101578165B (en) * | 2006-11-28 | 2012-09-19 | 许姆·约翰·凯特利 | A hole saw assembly including drive shafts supported by a rotatable annulus |
-
1999
- 1999-07-29 CN CN 99218452 patent/CN2391719Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101578165B (en) * | 2006-11-28 | 2012-09-19 | 许姆·约翰·凯特利 | A hole saw assembly including drive shafts supported by a rotatable annulus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |