CN2582792Y - Locking drill chuck - Google Patents
Locking drill chuck Download PDFInfo
- Publication number
- CN2582792Y CN2582792Y CN 02255953 CN02255953U CN2582792Y CN 2582792 Y CN2582792 Y CN 2582792Y CN 02255953 CN02255953 CN 02255953 CN 02255953 U CN02255953 U CN 02255953U CN 2582792 Y CN2582792 Y CN 2582792Y
- Authority
- CN
- China
- Prior art keywords
- nut sleeve
- driving ring
- screw nut
- sleeve
- 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
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Abstract
The utility model relates to a locking type drill chuck. The utility model comprises a drill body, clamping jaws, a screw nut, a screw nut sleeve, a front sleeve, and a back sleeve, wherein, a swing driving ring is arranged between the front sleeve and the screw nut sleeve. The swing driving ring is sheathed on the screw nut sleeve. Swing space is arranged inside the screw nut sleeve. A protruding pusher dog is arranged on the swing driving ring. The outer circle of the front end of the drill body is provided with a ratchet. A spring sheet is arranged inside the screw nut sleeve. The rotation of the screw nut sleeve is driven by the front sleeve through the swing driving ring. The swing driving ring and the screw nut sleeve are rotated correspondingly. The pusher dog is contacted with the spring in order to control a locking mechanism formed by the pusher dog, and the ratchet on the drill body. The utility model has a locking function, so the looseness of a drill tool can not occur because of vibration or impact. The utility model has the advantages of reasonable structure, stable operation, easy use, reliable self-locking performance, etc. The utility model is suitable for clamping various drill tools.
Description
Technical field
The utility model relates to a kind of drilling tool clamping device, specifically a kind of locking type clamping head of drill.
Background technology
We know that existing hand fastening drill clutch generally is made up of drill body, jaw, screw, nut sleeve, bearing, protheca, back cover.Three jaws are installed in respectively in three five equilibrium inclined holes of drill body, screw is installed in the screw groove of drill body, the screw thread of screw and jaw forms thread transmission, nut sleeve is fixedlyed connected with screw, protheca is connected with screw or nut sleeve key, the back cover is fixedlyed connected with drill body, and there are screwed hole or taper hole in the drill body rear portion.When installing and using, the screwed hole at drill body rear portion is connected with the power transmission shaft screw rod of power equipment, drives drill body drive three-jaw and folded instrument when power transmission shaft rotates and rotates synchronously.During clamping tool, hold and relatively rotate protheca and back cover, the jaw of screw in drill body that connects with the protheca key rotated,, jaw is moved forward in the inclined hole of drill body and clamp pad through the screw thread transmission of screw and jaw.Easily make drilling tool loosening when existing drill chuck vibration or impact, influence operating efficiency, poor stability; Or drill chuck has retaining mechanism and structure is too complicated and be difficult for forming and produce in enormous quantities.
Summary of the invention
Technical problem to be solved in the utility model is to overcome above-mentioned the deficiencies in the prior art, provides a kind of rational in infrastructure, has locking function, high efficiency, safe in utilization, locking type clamping head of drill easily.
The technical scheme in the invention for solving the above technical problem is: a kind of locking type clamping head of drill, include drill body, jaw, screw, nut sleeve, protheca, the back cover, it is characterized in that: be provided with the revolution driving ring between protheca and the nut sleeve, the revolution driving ring is sleeved on the nut sleeve, and in nut sleeve, be provided with rotary space, the revolution driving ring is provided with outstanding pusher dog, drill body front end cylindrical is provided with ratchet, spring leaf is housed in the nut sleeve, protheca drives nut sleeve by the revolution driving ring and rotates, during revolution driving ring and nut sleeve relatively rotated, pusher dog contacted with spring, controlled the ratchet formation retaining mechanism on itself and the drill body.Reach the self-locking purpose.
The utility model has the auto lock function owing to adopt said structure, and it is easy for operation, have rational in infrastructure, working stability, easy to use, advantage such as self-locking property is reliable is applicable to the clamping of various drilling tools.
Description of drawings
Below in conjunction with accompanying drawing the utility model is described further:
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the schematic cross-section of a kind of embodiment of the present utility model;
The specific embodiment
As can be seen from Figure 1, a kind of locking type clamping head of drill of the utility model, it is provided with drill body 1, back cover 2, jump ring 3, bearing 4, nut sleeve 5, protheca 6, screw 7, jaw 9, three jaws 9 are installed in respectively in three five equilibrium inclined holes of drill body 1, screw 7 is installed in the screw groove of drill body 1, and screw 7 forms thread transmission with the screw thread of jaw 9, and nut sleeve 5 is fixedlyed connected with screw 7, back cover 2 is fixedlyed connected with drill body 1, and there are screwed hole or taper hole in the drill body rear portion.The pass of said structure and coupled parts is a prior art, and this does not describe in detail.
As shown in Figure 1 and Figure 2, be provided with revolution driving ring 8 between the utility model protheca 6 and the nut sleeve 5, revolution driving ring 8 is sleeved on the nut sleeve 5, and is provided with rotary space in nut sleeve 5, like this, between revolution driving ring 8 and nut sleeve 5 relative rotation is arranged.Revolution driving ring 8 is provided with outstanding pusher dog 8-1.Protheca 6 drives nut sleeve 5 by revolution driving ring 8 and rotates, and realizes that drill chuck unclamps, and clamps mainly action.
The utility model is provided with ratchet 1-1 at drill body 1 front end cylindrical, as shown in Figure 2, fits over mutually with it and is provided with spring leaf 5-1 in the nut sleeve 5, and spring leaf 5-1 is provided with ratchet and arc convex, and nut sleeve 5 lower ends are provided with inner chamber with holes.Circular arc projection on the spring leaf 5-1 is outstanding from the hole, contacts with the protheca inwall.Protheca 6 drives nut sleeve 5 by revolution driving ring 8 and rotates, but between revolution driving ring 8 and nut sleeve 5, relative rotation is arranged, in revolution driving ring 8 and nut sleeve 5 relatively rotate, the pusher dog 8-1 that itself gives prominence to by revolution driving ring 8 opens or closes spring 5-1, form retaining mechanism with the ratchet 1-1 on the drill body, reach the self-locking purpose.
The utlity model has locking function, can or not impact because of vibration making drilling tool loosening, have structure Rationally, working stability, easy to use, the advantage such as self-locking property is reliable is applicable to the dress of various drilling tools Folder.
Claims (2)
1, a kind of locking type clamping head of drill, include drill body, jaw, screw, nut sleeve, protheca, back cover, it is characterized in that: be provided with the revolution driving ring between protheca and the nut sleeve, the revolution driving ring is sleeved on the nut sleeve, and in nut sleeve, be provided with rotary space, the revolution driving ring is provided with outstanding pusher dog, drill body front end cylindrical is provided with ratchet, spring leaf is housed in the nut sleeve, protheca drives nut sleeve by the revolution driving ring and rotates, during revolution driving ring and nut sleeve relatively rotated, pusher dog contacted with spring, controlled the ratchet formation retaining mechanism on itself and the drill body.
2, locking type clamping head of drill as claimed in claim 1 is characterized in that: spring leaf is provided with ratchet and arc convex.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02255953 CN2582792Y (en) | 2002-12-09 | 2002-12-09 | Locking drill chuck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02255953 CN2582792Y (en) | 2002-12-09 | 2002-12-09 | Locking drill chuck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2582792Y true CN2582792Y (en) | 2003-10-29 |
Family
ID=33724338
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02255953 Expired - Fee Related CN2582792Y (en) | 2002-12-09 | 2002-12-09 | Locking drill chuck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2582792Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110072657A (en) * | 2016-10-14 | 2019-07-30 | 捷可勃斯夹头制造（苏州）有限公司 | Collet with sliding protection |
-
2002
- 2002-12-09 CN CN 02255953 patent/CN2582792Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110072657A (en) * | 2016-10-14 | 2019-07-30 | 捷可勃斯夹头制造（苏州）有限公司 | Collet with sliding protection |
| CN110072657B (en) * | 2016-10-14 | 2020-12-04 | 捷可勃斯夹头制造（苏州）有限公司 | Chuck with sliding protection |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20031029 Termination date: 20100111 |