CN101412212B - Mounting and dismounting head with multiple screwdriver bits - Google Patents
Mounting and dismounting head with multiple screwdriver bits Download PDFInfo
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- CN101412212B CN101412212B CN2008101623983A CN200810162398A CN101412212B CN 101412212 B CN101412212 B CN 101412212B CN 2008101623983 A CN2008101623983 A CN 2008101623983A CN 200810162398 A CN200810162398 A CN 200810162398A CN 101412212 B CN101412212 B CN 101412212B
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- rotary sleeve
- screwdriver bit
- screwdriver
- tap
- output shaft
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- 238000009434 installation Methods 0.000 claims abstract description 5
- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- 230000001154 acute effect Effects 0.000 claims description 3
- 238000005452 bending Methods 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
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Abstract
The invention relates to a multi-tap loading and unloading head, which is characterized by comprising a rotary sleeve, a tap rack, an output shaft, a front positioning sheet, a back positioning sheet, a gasket and a resetting component, wherein the rotary sleeve is provided with a through hole for a tap to be sprung out, the tap rack receives at least two taps, the output shaft passes through themiddle part of the rotary sleeve axially and can rotate, the head of the output shaft is provided with a cavity for mounting the taps, the front positioning sheet is arranged at the front end part ofthe tap, the back positioning component is arranged at the back end part of the tap, the gasket is elastically arranged at the bottom of the tap, and the resetting component acts on the rotary sleeveand forces the rotary sleeve to move outwards all along. Compared with the prior art, the multi-tap loading and unloading head has the advantages that when the tap needs to be replaced, only the rotary sleeve is extruded inwards axially, and the selected tap can automatically separate from the tap rack and is sprung out from the through hole of the rotary sleeve, so as to achieve quick installation of the tap on the end part of the output shaft, and meet requirement of high working efficiency.
Description
Technical field
The present invention relates to a kind of loading and unloading head with a plurality of screwdriver bits, this loading and unloading head can be applicable on the screwdriver of direct current electric power tools or AC electrical instrument.
Background technology
Common screwdriver or the instrument of other screwdriver bits is housed, usually, an instrument correspondence is provided with a screwdriver bit, so can only finish a kind of function, use relatively limitation, for reaching one-object-many-purposes, developed the instrument that much possesses a plurality of screwdriver bits, promptly a tool body is equipped with a plurality of screwdriver bits, can according to actual needs screwdriver bit be changed from tool body, has expanded its function greatly.
As the patent No. is Chinese utility model patent " replaceable multi-function the screwdriver " (Granted publication number: CN2245521Y) of ZL95221763.5, this patent is formed by connecting by main body, runner, handgrip, have on its runner and can lay the variform knife bar through hole of the various edges of a knife, a push rod that is interspersed in runner and main body through hole is installed on the handgrip, the circular draw-in groove that the arc dop of the end of knife bar is stuck on back body and the runner contact-making surface is interior with the runner rotation, by push rod knife bar is released through hole and uses.Similarly also as CN2073796U, CN2056118U etc.The screwdriver loading and unloading of above-mentioned open source literature are comparatively loaded down with trivial details, take the more working time, need to do further to improve.
Recently find, generally also all carry the mounting box of a plurality of screwdriver bits in the electric tool of Shi Yonging, mounting box generally is located at head, handle or the body side equipotential of electric tool and is put, need the opening installation box when changing screwdriver bit, selecting the screwdriver bit that needs then loads onto, the screwdriver bit of changing is put into mounting box, and same loading and unloading are comparatively inconvenience also, influences the progress of work.
Summary of the invention
Technical problem to be solved by this invention is the mounting and dismounting head with multiple screwdriver bits that provides a kind of screwdriver bit to eject automatically at the above-mentioned state of the art.
The present invention solves the problems of the technologies described above the technical scheme that is adopted: this mounting and dismounting head with multiple screwdriver bits is characterized in that comprising
Rotary sleeve has the through hole that ejects for screwdriver bit;
The screwdriver bit frame is located at above-mentioned rotary sleeve inner chamber, is equipped with at least two screwdriver bits;
Output shaft axially passes above-mentioned rotary sleeve middle part and rotatable, and head has can be for the cavity of above-mentioned screwdriver bit installation;
The predetermination bit slice flexibly is arranged at the leading section of above-mentioned screwdriver bit;
Back keeper is arranged at the rearward end of above-mentioned screwdriver bit;
The pad that can impel above-mentioned screwdriver bit to eject under the axial motion state inward of rotary sleeve; And
Return unit acts on above-mentioned rotary sleeve and forces this rotary sleeve outwards to move all the time.
Further, described screwdriver bit frame is fixed on the gearbox drive axle, and described output shaft then is located at aforesaid gears case power transmission shaft leading section.
As preferably, described return unit is one to be sheathed on the back-moving spring on the described output shaft, and this back-moving spring front end acts on described rotary sleeve, and rear end and described gearbox drive axle front end face offset.
As preferably, the inwall of described rotary sleeve rearward end has draw-in groove, and a jump ring is located in this draw-in groove and is limited the described relatively gearbox drive axle of described rotary sleeve and axially break away from.
Be equipped with a plurality of screwdriver bits on the described screwdriver bit frame circumferencial direction, and the screwdriver bit central axis on the described screwdriver bit frame and the axis of output shaft are an acute angle.Be convenient to screwdriver bit like this and break away from the screwdriver bit frame, also be convenient to simultaneously install.
As preferably, that described predetermination bit slice is is circular, compression spring one end and described rotary sleeve internal chamber wall offset, and the other end and described predetermination bit slice offset.
As preferably, described pad comprises
Base portion is circular, is sheathed on the described output shaft and with described rotary sleeve inwall to offset;
By the rubber-like tongue piece portion that base portion radially extends, be located at described screwdriver bit bottom in order to eject screwdriver bit.Simple in structure, result of use is good.Certainly the structure of pad and concrete the setting are not limited thereto, and base portion and tongue piece portion also can the split designs, as long as the radial motion that the axially-movable of base portion is converted into tongue piece portion just can reach the requirement of the technical program.
As preferably, described back keeper is circular, and the edge has the flanging to described screwdriver bit direction bending, and the rearward end of described screwdriver bit then is positioned at this flanging.
Compared with prior art, the invention has the advantages that: when needing to change screwdriver bit, as long as rotary sleeve is extruding inward axially, selected screwdriver bit will automatically break away from the screwdriver bit frame, and in the through hole of rotary sleeve, eject, and then realize that the screwdriver bit Fast Installation in output shaft end, satisfies the demand of high workload efficient.The overall structure advantages of simple, assembling is quick.
Description of drawings
Fig. 1 is the example structure schematic diagram.
Fig. 2 is the embodiment decomposition assembling figure.
Fig. 3 is the embodiment cutaway view.
Fig. 4 is a rotary sleeve structural representation among the embodiment.
Fig. 5 is embodiment user mode figure.
The specific embodiment
Embodiment describes in further detail the present invention below in conjunction with accompanying drawing.
Embodiment: with reference to figure 1, Fig. 2 and shown in Figure 3, the mounting and dismounting head with multiple screwdriver bits in the present embodiment comprises rotary sleeve 2, screwdriver bit frame 8, output shaft 1, predetermination bit slice 71, back keeper 72, pad 6 and return unit 42.
Upwards have a long through-hole 21 and five short through holes in 2 weeks of rotary sleeve, after moving axially, can eject and assembling long through-hole 21 for screwdriver bit 81, short through hole then can not eject screwdriver bit, only determine the screwdriver bit position for the user, certainly short through hole also can adopt transparent material to cover, and rotary sleeve 2 relative output shafts 1 turn.The inwall of rotary sleeve 2 rearward end has draw-in groove 22 (with reference to shown in Figure 4), and a jump ring 9 is located in the draw-in groove 22 and restriction rotary sleeve 2 axially breaks away from (reference is shown in Figure 4).
Screwdriver bit frame 8 is located at rotary sleeve 2 inner chambers and is fixed on the gearbox drive axle 31, circumferencial direction is equipped with the screwdriver bit 81 of a plurality of different purposes, the central axis of ccontaining back screwdriver bit 81 and the axis of output shaft 1 are an acute angle, be being arranged on the screwdriver bit frame 8 of tilting of screwdriver bit 81, be convenient to screwdriver bit 81 like this and break away from screwdriver bit frame 8, also be convenient to simultaneously install.
Output shaft 1 axially passes rotary sleeve 2 middle parts and is located at gearbox drive axle 31 leading sections, and head has the cavity that can supply screwdriver bit 81 to plug.
Pad 6 parts flexibly are arranged at the bottom of screwdriver bit 81, particularly: pad 6 comprises base portion 62 that is circular and a plurality of tongue piece portion 61 of rubber-like of radially being extended by base portion 62, base portion 62 is sheathed on the output shaft 1 and is positioned at rotary sleeve 2, and a plurality of tongue piece portion 61 are located at screwdriver bit 81 bottoms in order to eject screwdriver bit 81.
The screwdriver bit 81 of six different purposes is housed on the screwdriver bit frame 8 in the present embodiment, and accordingly, tongue piece portion 61 also is six.
With reference to shown in Figure 5, mounting and dismounting head with multiple screwdriver bits 101 is located at hand held electric drill 100 heads, selected good screwdriver bit 81, rotating rotary sleeve 2 makes this screwdriver bit 81 aim at the long through-hole 21 of rotary sleeve, the application of force makes axially motion inward of rotary sleeve 2 then, through hole 21 just in time moves to and satisfies the position that screwdriver bit 81 ejects, simultaneously, rotary sleeve 2 drives predetermination bit slice 71, the base portion 62 of screwdriver bit 81 and pad moves slightly inwards, the tongue piece portion 61 of screwdriver bit 81 extruding pads, thereby make tongue piece portion 61 accumulation of energys of pad, tongue piece portion 61 forces in screwdriver bit 81 bottoms, when the application of force during greater than the active force of predetermination bit slice 71 and back keeper 72, impel screwdriver bit 81 to break away from screwdriver bit frame 8, and then from the through hole 21 of rotary sleeve, eject automatically, unclamping rotary sleeve 2, rotary sleeve 2 resets under return unit 42 effects.After using up, during dress screwdriver bit 81,, overcome the elastic force of tongue piece portion 61 simultaneously, just can accurately install spacing as long as screwdriver bit 81 is inserted screwdriver bit frame 8.
Claims (6)
1. a mounting and dismounting head with multiple screwdriver bits is characterized in that comprising
Rotary sleeve has the through hole that ejects for screwdriver bit;
The screwdriver bit frame is located at above-mentioned rotary sleeve inner chamber, is equipped with at least two screwdriver bits;
Output shaft axially passes above-mentioned rotary sleeve middle part and rotatable, and head has can be for the cavity of above-mentioned screwdriver bit installation, and rearward end is provided with the gearbox drive axle;
The predetermination bit slice flexibly is arranged at the leading section of above-mentioned screwdriver bit;
Back keeper is arranged at the rearward end of above-mentioned screwdriver bit;
The pad that can impel above-mentioned screwdriver bit to eject under the axial motion state inward of rotary sleeve; And
Return unit acts on above-mentioned rotary sleeve and forces this rotary sleeve outwards to move all the time,
Described pad comprises
Base portion is circular, is sheathed on the described output shaft and offsets with the inwall of described rotary sleeve;
By the rubber-like tongue piece portion that base portion radially extends, be located at described screwdriver bit bottom in order to the ejection screwdriver bit,
The rearward end inwall of described rotary sleeve has draw-in groove, and a jump ring is located in this draw-in groove and is limited the described relatively gearbox drive axle of described rotary sleeve and axially break away from.
2. mounting and dismounting head with multiple screwdriver bits according to claim 1 is characterized in that described screwdriver bit frame is fixed on the gearbox drive axle, and described output shaft then is located at aforesaid gears case power transmission shaft leading section.
3. mounting and dismounting head with multiple screwdriver bits according to claim 2, it is characterized in that described return unit is one to be sheathed on the back-moving spring on the described output shaft, this back-moving spring front end acts on described rotary sleeve by pad, and rear end and described gearbox drive axle front end face offset.
4. according to the described mounting and dismounting head with multiple screwdriver bits of arbitrary claim in the claim 1 to 3, it is characterized in that being equipped with a plurality of screwdriver bits on the described screwdriver bit frame circumferencial direction, and the screwdriver bit central axis on the described screwdriver bit frame and the axis of output shaft are an acute angle.
5. according to the described mounting and dismounting head with multiple screwdriver bits of arbitrary claim in the claim 1 to 3, it is characterized in that the front inner wall that described predetermination bit slice is circular, compression spring one end and described rotary sleeve offsets, the other end and described predetermination bit slice offset.
6. according to the described mounting and dismounting head with multiple screwdriver bits of arbitrary claim in the claim 1 to 3, it is characterized in that described back keeper is circular, the edge has the flanging to described screwdriver bit direction bending, and the rearward end of described screwdriver bit then is positioned at this flanging.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101623983A CN101412212B (en) | 2008-11-26 | 2008-11-26 | Mounting and dismounting head with multiple screwdriver bits |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101623983A CN101412212B (en) | 2008-11-26 | 2008-11-26 | Mounting and dismounting head with multiple screwdriver bits |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101412212A CN101412212A (en) | 2009-04-22 |
| CN101412212B true CN101412212B (en) | 2011-09-28 |
Family
ID=40593061
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008101623983A Active CN101412212B (en) | 2008-11-26 | 2008-11-26 | Mounting and dismounting head with multiple screwdriver bits |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101412212B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102485437A (en) * | 2010-12-04 | 2012-06-06 | 浙江特畅恒实业有限公司 | Pendulum-type power tool |
| CN107139117B (en) * | 2017-04-21 | 2018-10-26 | 蔡毓旻 | Turntable type instrument with mood mitigation capability |
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2008
- 2008-11-26 CN CN2008101623983A patent/CN101412212B/en active Active
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| Publication number | Publication date |
|---|---|
| CN101412212A (en) | 2009-04-22 |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Owner name: NINGBO HANPU TOOLS CO., LTD. Free format text: FORMER OWNER: CHEN HUIFU Effective date: 20110212 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 315100 NINGBO SOUTH PULI TOOLS CO., LTD., GANGTOU, ZHONGJIE, HENGXI TOWN, YINZHOU DISTRICT, NINGBO CITY, ZHEJIANG PROVINCE TO: 315131 ZHONGJIE VILLAGE, HENGXI TOWN, YINZHOU DISTRICT, NINGBO CITY, ZHEJIANG PROVINCE |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20110212 Address after: 315131 Zhejiang Street Village Hengxi town Yinzhou District city of Ningbo Province Applicant after: NINGBO HANPU TOOLS Co.,Ltd. Address before: 315100 Zhejiang city of Ningbo Province Wang town Yinzhou District street gang tou Ningbo South Puli Tools Co. Ltd. Applicant before: Chen Huifu |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Multi batch loading and unloading head Effective date of registration: 20231130 Granted publication date: 20110928 Pledgee: Ningbo Yinzhou Rural Commercial Bank Co.,Ltd. Hengxi Sub branch Pledgor: NINGBO HANPU TOOLS Co.,Ltd. Registration number: Y2023330002848 |