CN105328645A - Quick chuck for electric hammer - Google Patents
Quick chuck for electric hammer Download PDFInfo
- Publication number
- CN105328645A CN105328645A CN201510692150.8A CN201510692150A CN105328645A CN 105328645 A CN105328645 A CN 105328645A CN 201510692150 A CN201510692150 A CN 201510692150A CN 105328645 A CN105328645 A CN 105328645A
- Authority
- CN
- China
- Prior art keywords
- chuck
- diameter portion
- steel ball
- minor diameter
- small
- 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.)
- Pending
Links
Abstract
The invention discloses a quick chuck for an electric hammer. The quick chuck comprises a chuck body, a tetragonal sleeve and a clamp cover. The tetragonal sleeve is of a convex structure composed of a small-diameter portion and a large-diameter portion. The side face of the large-diameter portion is clamped to a boss of the inner side of the clamp cover through steel balls. A lower spring is arranged between the part, located above the boss, of the clamp cover and the large-diameter portion in a sleeving manner. A fixing cushion is arranged at the top of the lower spring. Limiting holes are formed in the side face of the small-diameter portion. An upper spring is arranged between the small-diameter portion and the clamp cover in a sleeving manner. The bottom of the upper spring makes contact with the fixing cushion and the top is provided with a steel ball seat. The steel balls are arranged between the steel ball seat and the limiting holes. The small-diameter portion and the clamp cover are sleeved with the chuck body. A dedusting cap is arranged between the chuck body and the small-diameter portion. The quick chuck is simple and reasonable in structure and convenient to assemble. People can insert and pull out the quick chuck directly and quickly with less strength due to cooperation of the steel balls and the springs, and replacement and use of a drill bit in daily life are facilitated.
Description
Technical field
The present invention relates to a kind of quick chuck, specifically, relate to electric hammer quick chuck.
Background technology
At present, commercially available electric hammer when more bit change, need to collet segment adopt by, lift, lift the operations such as location, replacing construction is long, also more loaded down with trivial details, and needs firmly to press down drill bit in position fixing process, and it is very inconvenient to install.
Summary of the invention
It is reasonable that technical problem to be solved by this invention is to provide a kind of compact conformation, installs and use convenient electric hammer quick chuck.
For solving the problems of the technologies described above, the technical solution used in the present invention is:
Electric hammer quick chuck, comprise collet body, four square sets and chuck, four square sets form convex structure by minor diameter part and large-diameter portion, the side of large-diameter portion is by the boss clamping inside steel ball and chuck, lower spring is arranged with between the part of chuck above boss and large-diameter portion, the top of lower spring is provided with fixed bolster, the side of minor diameter part is provided with spacing hole, spring is arranged with between minor diameter part and chuck, the bottom of upper spring contacts with fixed bolster, top is provided with steel ball seat, steel ball is provided with between steel ball seat and spacing hole, collet body is set in the outside of minor diameter part and chuck, dust cap is provided with between collet body and minor diameter part, dust cap and minor diameter part clamping.
Bottom the corresponding chuck in side of described large-diameter portion and the position of fixed bolster is equipped with jump-ring slot, is provided with jump ring in jump-ring slot.
The length of described spacing hole is greater than the diameter of steel ball.
Compared with prior art, advantage of the present invention is: chuck structure advantages of simple of the present invention, easy to assembly, by the cooperation of steel ball and spring, can realize directly, insert rapidly and extract, firmly little, and the daily replacing to drill bit of being more convenient for uses.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
Fig. 1 is structural representation of the present invention.
Wherein, 1, dust cap, 2, collet body, 3, steel ball seat, 4, upper spring, 5, fixed bolster, 6, lower spring, 7, chuck, 71, boss, 8, four square sets, 81, minor diameter part, 82, large-diameter portion, 83, spacing hole, 9, steel ball, 10, jump ring.
Detailed description of the invention:
As shown in Figure 1, electric hammer quick chuck, comprise collet body 2, four square sets 8 and chuck 7, four square sets 8 form convex structure by minor diameter part 81 and large-diameter portion 82, the side of large-diameter portion 82 is by boss 71 clamping inside steel ball 9 and chuck 7, lower spring 6 is arranged with between the part of chuck 7 above boss 71 and large-diameter portion 82, the top of lower spring 6 is provided with fixed bolster 5, the side of minor diameter part 81 is provided with spacing hole 83, spring 4 is arranged with between minor diameter part 81 and chuck 7, the bottom of upper spring 4 contacts with fixed bolster 5, top is provided with steel ball seat 3, steel ball 9 is provided with between steel ball seat 3 and spacing hole 83, collet body 2 is set in the outside of minor diameter part 81 and chuck 7, dust cap 1 is provided with between collet body 2 and minor diameter part 81, dust cap 1 and minor diameter part 81 clamping, bottom the corresponding chuck 7 in side of the large-diameter portion 82 and position of fixed bolster 5 is equipped with jump-ring slot, jump ring 10 is provided with in jump-ring slot.
In the present invention, the length of spacing hole 83 is greater than the diameter of steel ball 9, can freely up and down move to make steel ball 9; Meanwhile, in order to coordinate the motion of steel ball 9, inside steel ball seat 3, be the inner concave arc surface identical with steel ball 9 quantity.
When the present invention uses, directly drill bit is inserted the endoporus of four square sets 8, steel ball and spring firmly can clamp drill bit; When needing to change, press down collet body 2 and just can easily take out, greatly facilitate the routine use of electric hammer.
Claims (3)
1. electric hammer quick chuck, it is characterized in that: comprise collet body, four square sets and chuck, described four square sets form convex structure by minor diameter part and large-diameter portion, the side of described large-diameter portion is by the boss clamping inside steel ball and chuck, lower spring is arranged with between the part of described chuck above boss and large-diameter portion, the top of described lower spring is provided with fixed bolster, the side of described minor diameter part is provided with spacing hole, spring is arranged with between described minor diameter part and chuck, the bottom of described upper spring contacts with fixed bolster, top is provided with steel ball seat, steel ball is provided with between described steel ball seat and spacing hole, described collet body is set in the outside of minor diameter part and chuck, dust cap is provided with between described collet body and minor diameter part, described dust cap and minor diameter part clamping.
2. electric hammer quick chuck according to claim 1, is characterized in that: bottom the corresponding chuck in side of described large-diameter portion and the position of fixed bolster is equipped with jump-ring slot, is provided with jump ring in described jump-ring slot.
3. electric hammer quick chuck according to claim 1, is characterized in that: the length of described spacing hole is greater than the diameter of steel ball.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510692150.8A CN105328645A (en) | 2015-10-23 | 2015-10-23 | Quick chuck for electric hammer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510692150.8A CN105328645A (en) | 2015-10-23 | 2015-10-23 | Quick chuck for electric hammer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105328645A true CN105328645A (en) | 2016-02-17 |
Family
ID=55279511
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510692150.8A Pending CN105328645A (en) | 2015-10-23 | 2015-10-23 | Quick chuck for electric hammer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105328645A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108825671A (en) * | 2018-09-07 | 2018-11-16 | 北京倍肯恒业科技发展股份有限公司 | Various dimensions multi-angle rotary and device for quickly disassembling |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6092814A (en) * | 1996-02-07 | 2000-07-25 | Robert Bosch Gmbh | Tool holder for inserted tools in drilling and/or hammering machines |
| US6241026B1 (en) * | 1999-05-08 | 2001-06-05 | Black & Decker Inc. | Rotary hammer |
| CN1550296A (en) * | 2003-05-15 | 2004-12-01 | 罗伯特・博施有限公司 | Hand tool |
| CN1735485A (en) * | 2001-10-26 | 2006-02-15 | 布莱克-德克尔公司 | Drilling and/or hammering tool |
| CN1903514A (en) * | 2005-07-28 | 2007-01-31 | 希尔蒂股份公司 | Tool holder for percussion tool |
-
2015
- 2015-10-23 CN CN201510692150.8A patent/CN105328645A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6092814A (en) * | 1996-02-07 | 2000-07-25 | Robert Bosch Gmbh | Tool holder for inserted tools in drilling and/or hammering machines |
| US6241026B1 (en) * | 1999-05-08 | 2001-06-05 | Black & Decker Inc. | Rotary hammer |
| CN1735485A (en) * | 2001-10-26 | 2006-02-15 | 布莱克-德克尔公司 | Drilling and/or hammering tool |
| CN1550296A (en) * | 2003-05-15 | 2004-12-01 | 罗伯特・博施有限公司 | Hand tool |
| CN1903514A (en) * | 2005-07-28 | 2007-01-31 | 希尔蒂股份公司 | Tool holder for percussion tool |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108825671A (en) * | 2018-09-07 | 2018-11-16 | 北京倍肯恒业科技发展股份有限公司 | Various dimensions multi-angle rotary and device for quickly disassembling |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160217 |