CN200970640Y - Novel self locking drill clamp - Google Patents
Novel self locking drill clamp Download PDFInfo
- Publication number
- CN200970640Y CN200970640Y CN 200620140638 CN200620140638U CN200970640Y CN 200970640 Y CN200970640 Y CN 200970640Y CN 200620140638 CN200620140638 CN 200620140638 CN 200620140638 U CN200620140638 U CN 200620140638U CN 200970640 Y CN200970640 Y CN 200970640Y
- Authority
- CN
- China
- Prior art keywords
- spring leaf
- jaw
- groove
- sleeve
- self
- 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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- Drilling And Boring (AREA)
Abstract
This utility model provides a novelty self-locking drill chuck which is provided with a clamping jaw and a connecting body matched with a driving mechanism, and this utility model is also provided with a back sleeve, a middle sleeve and a front sleeve which surrounds the connecting body; the front sleeve is connected with the middle sleeve, the connecting body is provided with a positioning boss which is matched with the front sleeve and the middle sleeve, the back end of middle sleeve is provided with a self-locking spring leaf, the surrounding area at the back of connecting body is provided with a groove which is matched with the self-locking position of a spring leaf, the spring leaf is provided with an outward boss, the back sleeve is provided with the groove which is matched with the boss of the spring leaf; the front sleeve is provided with an incline clamping jaw groove, the clamping jaw is provided in the clamping jaw groove, the front end of clamping head is provided with the hole for the clamping jaw to stretch out; the clamping jaw is connected by screw with the front end of connecting body, and the surface of front sleeve is provided with a flexible insert element or a flexible ring body. This utility model is provided with a new style structure, reliable operation and self-locking function, and this utility model can increase friction force of handling drill chuck, which is favorable to input bigger torque force and convenient for labeling product and enhance beauty of product.
Description
Technical field
The utility model relates to a kind of for example drill chuck of drilling machine or electric drill of plant equipment that is installed in.
Background technology
At present, keyless drill chuck generally comprises connector, jaw, jaw gathering sill, protheca, middle cover and back cover, and connector and driving device are connected.Rotation coupling or rotate in cover and back cover, make jaw in the jaw gathering sill, advance or retreat to clamp or the drill bit that gets loose.This drill chuck, when the backward rotation drill chuck, connector and middle cover and after be with and may relatively rotate, thereby make jaw get loose to the clamping of drill bit.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of simple in structure, easy to operate novel self-locking clamping chuck of drill bit.For this reason, the utility model is by the following technical solutions: the connector that it is provided with jaw and is connected with driving device, it also is provided with and is centered around the outer back cover of connector, middle cover and protheca, described protheca is connected with middle cover, connector is provided with the positioning boss that cooperates with protheca and middle cover, the rear end of middle cover has been provided with the spring leaf of self-locking action, connector rear portion periphery is provided with the groove that cooperates with the self-locking position of spring leaf, spring leaf is provided with outside projection, after be arranged with the groove that cooperates with the projection of spring leaf, be arranged with the jaw groove of inclination before described, jaw is located in the jaw groove, the front end of collet body has the hole of stretching out for jaw, and jaw is threaded with the connector front end, and described protheca surface is provided with flexible insert or flexible ring body.Because adopt the technical solution of the utility model, the utility model novel structure is simple, reliable operation has auto-lock function, and when making forward and backward rotation drill chuck, jaw keeps the clamping to drill bit.And flexible insert or flexible ring body both can increase the frictional force when holding drill chuck, helped importing bigger torsion, simultaneously, and the aesthetics of also being convenient to carry out the sign of product and improving product.
Description of drawings
Fig. 1 is the cutaway view of a kind of embodiment of the utility model.
Fig. 2 is the A-A cutaway view of Fig. 1.
The specific embodiment
With reference to accompanying drawing.The connector 3 that the utility model is provided with jaw 2 and is connected with driving device, it also is provided with and is centered around the outer back cover 6 of connector, middle cover 4 and protheca 1, described protheca is connected with middle cover, the present embodiment protheca is connected with middle external threading, connector is provided with the positioning boss 32 that cooperates with protheca and middle cover, the rear end of middle cover has been provided with the spring leaf 7 of self-locking action, connector rear portion periphery is provided with the groove 35 that cooperates with the self-locking position of spring leaf, spring leaf is provided with outside projection, after be arranged with the groove that cooperates with the projection of spring leaf, be arranged with the jaw groove 11 of inclination before described, jaw is located in the jaw groove, the front end of collet body has the hole 12 of stretching out for jaw, and jaw is threaded with the connector front end, and described protheca surface is provided with flexible ring body 9.Drawing reference numeral 5 is the ball of 32 of middle cover and positioning boss.Drawing reference numeral 8 is the location collar.
In addition, also flexible insert can be set on the described collet body, flexible ring body 9 and flexible insert can be arranged on the holding area of collet body as Fig. 1, and flexible ring body 9 and flexible insert also can be arranged on the non-holding area of collet body.
Totally 3 of jaws, jaw gathering sill 11 is obliquely installed and evenly is provided with along the protheca circumferencial direction.The connecting thread of jaw and connector front end 31 is a reverse thread.
The self-locking position of described spring leaf 7 is its lock end 72, and drawing reference numeral 74 is the other end of spring leaf 7.Be provided with the outside projection in two places 71,73 at spring leaf 7, the rear end of described middle cover is provided with mounting groove 41 and 43, in the mounting groove of cover, like this, makes that the installation of spring leaf is very convenient during described spring leaf projection is installed in.The back set groove that cooperates with the spring leaf projection of cover also is three, respectively with drawing reference numeral 62,63,64 expressions.
Described mounting groove is made of protruding key 42 and 44, and described back cover inwall is provided with the back cover rotary spacing key 61 that cooperates with protruding key, thereby can prevent that the back cover from rotating excessively, convenient control from latching operation.
Claims (4)
1, novel self-locking clamping chuck of drill bit, it is characterized in that the connector that it is provided with jaw and is connected with driving device, it also is provided with and is centered around the outer back cover of connector, middle cover and protheca, described protheca is connected with middle cover, connector is provided with the positioning boss that cooperates with protheca and middle cover, the rear end of middle cover has been provided with the spring leaf of self-locking action, connector rear portion periphery is provided with the groove that cooperates with the self-locking position of spring leaf, spring leaf is provided with outside projection, after be arranged with the groove that cooperates with the projection of spring leaf, be arranged with the jaw groove of inclination before described, jaw is located in the jaw groove, the front end of collet body has the hole of stretching out for jaw, and jaw is threaded with the connector front end, and described protheca surface is provided with flexible insert or flexible ring body.
2, novel self-locking clamping chuck of drill bit as claimed in claim 1 is characterized in that the rear end of described middle cover is provided with mounting groove, in the mounting groove that overlaps during the projection of described spring leaf is installed in.
3, novel self-locking clamping chuck of drill bit as claimed in claim 2 is characterized in that described mounting groove is made of protruding key, and described back cover inwall is provided with the back cover rotary spacing key that cooperates with protruding key.
4, novel self-locking clamping chuck of drill bit as claimed in claim 1, the connecting thread that it is characterized in that jaw and connector front end is a reverse thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620140638 CN200970640Y (en) | 2006-12-01 | 2006-12-01 | Novel self locking drill clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620140638 CN200970640Y (en) | 2006-12-01 | 2006-12-01 | Novel self locking drill clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200970640Y true CN200970640Y (en) | 2007-11-07 |
Family
ID=38881899
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620140638 Expired - Fee Related CN200970640Y (en) | 2006-12-01 | 2006-12-01 | Novel self locking drill clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200970640Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106903337A (en) * | 2017-04-20 | 2017-06-30 | 韩树海 | Rub poor locking drill chuck |
-
2006
- 2006-12-01 CN CN 200620140638 patent/CN200970640Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106903337A (en) * | 2017-04-20 | 2017-06-30 | 韩树海 | Rub poor locking drill chuck |
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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 |