CN200991771Y - Novel self-locking type self-fastening drill clip-head - Google Patents
Novel self-locking type self-fastening drill clip-head Download PDFInfo
- Publication number
- CN200991771Y CN200991771Y CN 200620141305 CN200620141305U CN200991771Y CN 200991771 Y CN200991771 Y CN 200991771Y CN 200620141305 CN200620141305 CN 200620141305 CN 200620141305 U CN200620141305 U CN 200620141305U CN 200991771 Y CN200991771 Y CN 200991771Y
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- China
- Prior art keywords
- connector
- self
- central
- drill chuck
- hole
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- 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 provides a novel self-locking keyless drill chuck which comprises a connector, a gripping jaw and a front cover encircling at the outside of the connector, the back end of the drill chuck is provided with a back cover encircling the connector, a self-locking apparatus controlled by the back cover is provided inside the back cover, the connector is provided with a central through hole, the back portion of the central through hole matches and connects with a propelling machinery, the front portion of the central through hole matches with a connection bolt that connects the propelling machinery and the connector, a cover body positioned at the axial direction is provided between the front cover and the connector, the cover body is provided with a gripping jaw slot, the gripping jaw is provided in the gripping jaw slot and is connected with the reverse screw thread at the front end of the connector. The utility model has a novel and simple structure, the connector can connect with the propelling machinery by connection holes and bolt connections, the connection is reliable.
Description
Technical field
The utility model relates to a kind of drill chuck, relates in particular to a kind of for example drill chuck on the drilling machine of machining equipment and electric tool that is installed in.
Background technology
In the prior art, the screw rod that keyless drill chuck is provided with the connector that is connected with driving device, the collet body that is provided with the jaw groove, jaw, is threaded with the centre bore of connector, screw rod also is connected with jaw.The operation drill chuck makes relatively rotating of collet body and connector, thereby drives jaw along the clamping of jaw groove advance and retreat or the drilling tool that gets loose by the motion of screw rod.The keyless drill chuck that has at present also is provided with self-locking device in the rear end of drill chuck, and the back cover control self-locking device by operation drill chuck rear end makes drill chuck be in self-locking state or non-self-locking state.After jaw clamps drill bit, can rotate the back cover and make drill chuck be in self-locking state, at this moment, and no matter forward and backward rotation drill chuck, jaw remains the clamping to drill bit.Although this drill chuck has higher precision and clamping reliability, the reliability that drill chuck itself is connected with driving device is its weak part.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of new-type self-locking keyless drill chuck simple in structure, reliable.For this reason, the utility model is by the following technical solutions: it comprises connector, jaw, is centered around the outer protheca of connector, the rear end of drill chuck is provided with the back cover around connector, be provided with the self-locking device of controlling by the back cover in the cover of back, connector is provided with central through hole, the back segment and the driving device of central through hole are connected, the leading portion of central through hole cooperates with the connecting bolt that is connected driving device and connector, be provided with the body that axially is positioned between protheca and connector, body is provided with the jaw groove, and described jaw is located in the jaw groove and with connector front end reverse thread and is connected.The utility model novel structure is simple, and connector can be connected with driving device with bolt by the connecting hole connection simultaneously and be connected, and connects reliable.
The specific embodiment
Fig. 1 partly cuts open schematic diagram for embodiment's that the utility model provides.
The specific embodiment
With reference to accompanying drawing.The utility model comprises connector 1, jaw 2, is centered around the outer protheca 3 of connector, the rear end of drill chuck is provided with the back cover 4 around connector, be provided with the self-locking device of controlling by the back cover 5 in the cover of back, connector is provided with central through hole 11, the back segment 111 and the driving device of central through hole are connected, the leading portion 112 of central through hole cooperates with the connecting bolt that is connected driving device and connector, be provided with the body 6 that axially is positioned between protheca and connector, body is provided with jaw groove 61, and described jaw is located in the jaw groove and with connector front end 13 reverse threads and is connected.
As shown in the figure, the leading portion of described central through hole has the conical section 113 that cooperates with the connecting bolt that is connected driving device and connector.
In the drawings, the middle part of connector is provided with boss 12, and body 6 rear ends are connected with the body 8 that rotates together by pin 9, and like this, 12 pairs of bodies 6 of boss and body 8 play the axial location effect.Protheca 3 is threaded with body 8.Body 6 along the circumferential direction is provided with 61,3 jaws of 3 jaw grooves and was in the jaw groove in 2 minutes.
Claims (2)
1, new-type self-locking keyless drill chuck, comprise connector, jaw, be centered around the outer protheca of connector, the rear end of drill chuck is provided with the back cover around connector, be provided with the self-locking device of controlling by the back cover in the cover of back, it is characterized in that connector is provided with central through hole, the back segment and the driving device of central through hole are connected, the leading portion of central through hole cooperates with the connecting bolt that is connected driving device and connector, be provided with the body that axially is positioned between protheca and connector, body is provided with the jaw groove, and described jaw is located in the jaw groove and with connector front end reverse thread and is connected.
2, new-type self-locking keyless drill chuck as claimed in claim 1 is characterized in that the leading portion of described central through hole has the conical section that cooperates with the connecting bolt that is connected driving device and connector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620141305 CN200991771Y (en) | 2006-12-20 | 2006-12-20 | Novel self-locking type self-fastening drill clip-head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620141305 CN200991771Y (en) | 2006-12-20 | 2006-12-20 | Novel self-locking type self-fastening drill clip-head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200991771Y true CN200991771Y (en) | 2007-12-19 |
Family
ID=38944849
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620141305 Expired - Fee Related CN200991771Y (en) | 2006-12-20 | 2006-12-20 | Novel self-locking type self-fastening drill clip-head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200991771Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114161195A (en) * | 2021-12-09 | 2022-03-11 | 成都市鸿侠科技有限责任公司 | Self-locking cutter suitable for machining large-scale structural member and using method thereof |
-
2006
- 2006-12-20 CN CN 200620141305 patent/CN200991771Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114161195A (en) * | 2021-12-09 | 2022-03-11 | 成都市鸿侠科技有限责任公司 | Self-locking cutter suitable for machining large-scale structural member and using method thereof |
| CN114161195B (en) * | 2021-12-09 | 2022-09-13 | 成都市鸿侠科技有限责任公司 | Self-locking cutter suitable for machining large-scale structural member and using method thereof |
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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 |