CN105436559B - Electric hand drill - Google Patents
Electric hand drill Download PDFInfo
- Publication number
- CN105436559B CN105436559B CN201510986794.8A CN201510986794A CN105436559B CN 105436559 B CN105436559 B CN 105436559B CN 201510986794 A CN201510986794 A CN 201510986794A CN 105436559 B CN105436559 B CN 105436559B
- Authority
- CN
- China
- Prior art keywords
- drill
- slide bar
- electric
- tooth plate
- electric 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B45/00—Hand-held or like portable drilling machines, e.g. drill guns; Equipment therefor
- B23B45/02—Hand-held or like portable drilling machines, e.g. drill guns; Equipment therefor driven by electric power
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drilling And Boring (AREA)
Abstract
Electric hand drill,Drill chuck including electric drill body and for installing drill bit,A ring annular groove is provided with drill chuck,Slide bar is provided with annular groove,The end of slide bar one end is extended in the keyhole of drill chuck,The part that slide bar stretches into keyhole is inclined-plane,Drill chuck exterior measuring is provided with a ring shape shelves wall,Annular shelves wall is fixed on electric drill body,Annular shelves wall is provided with an opening,The other end of slide bar extends in electric drill body and back-moving spring is provided between the inwall of electric drill body,The lower section of slide bar is provided with the first tooth plate,Engagement is provided with gear assembly on first tooth plate,Gear assembly also meshes with the second tooth plate,The lower end connection gag lever post of second tooth plate,It is electric drill button below gag lever post,Electric drill button is provided with stopper slot,The side of electric drill button is provided with drill switch,After said structure,Operator's more bit change in the case where electric drill does not power off will not also cause danger.
Description
Technical field
The invention belongs to field of power tools, and in particular to a kind of electric drill.
Background technology
Electric drill is the most-often used electric tool of people, and that it has the advantages that is convenient, inexpensive, is easy to carry, depth by hardware,
The favorable comment of worker in industry of decorateing.But operator is frequently necessary to more bit change when using electric drill, because seeking conveniently, operation
Person is the direct more bit change in the case where electric drill does not power off, if oneself or other people have touched switch in more bit change by mistake
Moved so that drill bit bores, be extremely dangerous.
The content of the invention
For deficiency of the prior art, the present invention provides a kind of electric drill.
The present invention is achieved through the following technical solutions.Electric hand drill, including electric drill body and the drill chuck for installing drill bit,
A ring annular groove is provided with the drill chuck, is provided with slide bar in the annular groove, the end of described slide bar one end extends drill chuck
Keyhole in, the part that the slide bar stretches into keyhole is inclined-plane, and the drill chuck exterior measuring is provided with a ring shape shelves wall, described
Annular shelves wall is fixed on electric drill body, and the annular shelves wall is provided with an opening, and the other end of the slide bar extends to electricity
Bore in body and be provided with back-moving spring between the inwall of electric drill body, the lower section of the slide bar is provided with the first tooth plate, described
Engagement is provided with gear assembly on first tooth plate, and the gear assembly also meshes with the second tooth plate, the lower end connection of second tooth plate
Gag lever post, it is electric drill button below the gag lever post, the electric drill button is provided with stopper slot, the side of the electric drill button
Operator causes slide bar toward electricity on the inclined-plane that drill bit key insertion keyhole is leaned on slide bar during provided with drill switch, more bit change
Bore and moved in body, the first tooth plate on slide bar, which drives gear assembly to rotate, moves down the second tooth plate, and then makes to be connected to second
Gag lever post on tooth plate is moved down in insertion stopper slot, and at this moment electric drill button is limited bar and blocks and can not press, when operator changes
Drill bit key is extracted after good drill bit, back-moving spring pushes back one end of slide bar in keyhole, and gag lever post moves up disengaging stopper slot.
Further, the contact surface of the slide bar and annular groove is provided with a circle ball.
Further, the drill chuck is provided with an index line.
Compared with prior art, for the present invention in more bit change in the case of energization, operator will be first opening on annular groove
Electric drill key, is then inserted keyhole, the inclined-plane that drill bit key is leaned on slide bar causes slide bar toward electric drill by mouth alignment keyhole
Moved in body, the first tooth plate on slide bar, which drives gear assembly to rotate, moves down the second tooth plate, and then makes to be connected to the second tooth
Gag lever post on plate is moved down in insertion stopper slot, and at this moment electric drill button is limited bar and blocks and can not press, when operator finishes changing
Drill bit key is extracted after drill bit, back-moving spring pushes back one end of slide bar in keyhole, and the first tooth plate drives gear assembly to rotate
Move up the second tooth plate, gag lever post moves up disengaging stopper slot, and at this moment operator presses electric drill button, and electric drill button touching electric drill is opened
Close, electric drill normal work.After said structure, even if operator, in the case where electric drill does not power off, more bit change also will not
Cause danger.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
Structural representation when Fig. 2 is more bit change of the invention.
Embodiment
Below in conjunction with the accompanying drawings with embodiment, the invention will be further described.As shown in Figure 1 to Figure 2, torch
Bore, including electric drill body 1 and the drill chuck 2 for installing drill bit, the drill chuck 2 is interior to be provided with a ring annular groove 22, the ring
Slide bar 3 is provided with shape groove 22, the end of described one end of slide bar 3 is extended in the keyhole 21 of drill chuck 2, and the slide bar 3 stretches into key
The part of keyhole 21 is inclined-plane, and the exterior measuring of drill chuck 2 is provided with a ring shape shelves wall 4, and the annular shelves wall 4 is fixed on electric drill sheet
On body 1, the annular shelves wall 4 is provided with an opening 41, the other end of the slide bar 3 extend in electric drill body 1 and with
Back-moving spring 13 is provided between the inwall of electric drill body 1, the lower section of the slide bar 3 is provided with the first tooth plate 5, first tooth plate 5
Upper engagement is provided with gear assembly 6, and the gear assembly 6 also meshes with the second tooth plate 7, and the lower end connection of second tooth plate 7 is spacing
Bar 8, the lower section of the gag lever post 8 is electric drill button 11, and the electric drill button 11 is provided with stopper slot 111, the electric drill button
11 side is provided with drill switch 9.
The contact surface of the slide bar 3 and annular groove 22 is provided with a circle ball, reduces slide bar 3 and ring when drill chuck 2 rotates
Frictional force between shape groove 22.
The drill chuck 2 is provided with an index line, when index line alignment opening 41, the alignment keyhole 21 of opening 41.
As long as operator presses electric drill button to the present invention under normal circumstances, electric drill is just after electric drill button leans drill switch
Setting in motion；Operator during more bit change is needed the opening on annular groove to be first directed at keyhole, then drill bit key 100
Insert keyhole, drill bit key 100 leans the wedge surface on slide bar so that slide bar is toward moving in electric drill body, the first tooth on slide bar
Strip moving teeth wheel assembly, which rotates, moves down the second tooth plate, and then the gag lever post for making to be connected on the second tooth plate moves down insertion stopper slot
In 111, at this moment electric drill button is limited bar and blocks and can not press, and drill bit key 100 is extracted after operator finishes changing drill bit, multiple
Position spring pushes back one end of slide bar in keyhole, and the first tooth plate, which drives gear assembly to rotate, moves up the second tooth plate, gag lever post
Move up and depart from stopper slot 111, at this moment operator presses electric drill button, electric drill button touching drill switch, electric drill normal work.Adopt
After said structure, even if operator, in the case where electric drill does not power off, more bit change will not also cause danger.
Claims (3)
1. electric hand drill, including electric drill body（1）With the drill chuck for installing drill bit（2）, it is characterised in that：The drill chuck
（2）Inside it is provided with a ring annular groove（22）, the annular groove（22）It is interior to be provided with slide bar（3）, the slide bar（3）The end of one end extends
Drill chuck（2）Keyhole（21）It is interior, the slide bar（3）Stretch into keyhole（21）Part be inclined-plane, the drill chuck（2）Outside
Survey is provided with a ring shape shelves wall（4）, the annular shelves wall（4）It is fixed on electric drill body（1）On, the annular shelves wall（4）On set
There is an opening（41）, the slide bar（3）The other end extend to electric drill body（1）It is interior and with electric drill body（1）Inwall
Between be provided with back-moving spring（13）, the slide bar（3）Lower section be provided with the first tooth plate（5）, first tooth plate（5）Upper engagement is set
There is gear assembly（6）, the gear assembly（6）Also mesh with the second tooth plate（7）, second tooth plate（7）Lower end connection it is spacing
Bar（8）, the gag lever post（8）Lower section be electric drill button（11）, the electric drill button（11）It is provided with stopper slot（111）, institute
State electric drill button（11）Side be provided with drill switch（9）, operator is drill bit key during more bit change（100）Insert keyhole
（21）Lean slide bar（3）On inclined-plane cause slide bar（3）Toward electric drill body（1）Interior movement, slide bar（3）On the first tooth plate（5）
Drive gear assembly（6）Rotation makes the second tooth plate（7）Move down, and then make to be connected to the second tooth plate（7）On gag lever post（8）Move down
Insert stopper slot（111）It is interior, at this moment electric drill button（11）It is limited bar（8）Block and can not press, when operator finishes changing drill bit
After extract drill bit key（100）, back-moving spring（13）By slide bar（3）One end push back keyhole（21）It is interior, gag lever post（8）Move up
Depart from stopper slot（111）.
2. electric hand drill as claimed in claim 1, it is characterised in that：The slide bar（3）With annular groove（22）Contact surface on set
There is a circle ball.
3. electric hand drill as claimed in claim 1, it is characterised in that：The drill chuck（2）It is provided with an index line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510986794.8A CN105436559B (en) | 2015-12-26 | 2015-12-26 | Electric hand drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510986794.8A CN105436559B (en) | 2015-12-26 | 2015-12-26 | Electric hand drill |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105436559A CN105436559A (en) | 2016-03-30 |
| CN105436559B true CN105436559B (en) | 2018-01-05 |
Family
ID=55547440
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510986794.8A Active CN105436559B (en) | 2015-12-26 | 2015-12-26 | Electric hand drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105436559B (en) |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4032160A (en) * | 1974-09-20 | 1977-06-28 | The Black And Decker Manufacturing Company | Chuck key holder |
| JPS62166975A (en) * | 1986-01-14 | 1987-07-23 | 松下電工株式会社 | Chuck handle container for power tool |
| GB9018220D0 (en) * | 1990-08-20 | 1990-10-03 | Morel Gerald A | Power tool |
| DE4427051A1 (en) * | 1994-07-29 | 1996-02-01 | Zettl Gmbh Cnc Praezisions Und | Chuck |
| KR100588879B1 (en) * | 2004-06-30 | 2006-06-14 | 현대자동차주식회사 | Drill chuck handle structure |
| DE102009046663A1 (en) * | 2009-01-16 | 2010-07-22 | Robert Bosch Gmbh | Machine tool, in particular hand-held machine tool |
| DE102010043032A1 (en) * | 2010-10-28 | 2012-05-03 | Hilti Aktiengesellschaft | Control method for a machine tool and a machine tool |
| CN103659743A (en) * | 2012-08-30 | 2014-03-26 | 彰彬工業股份有限公司 | Tool lock |
| CN104191003A (en) * | 2014-08-04 | 2014-12-10 | 刘影 | Chuck used for speed-changing electric drill |
| CN104201571A (en) * | 2014-09-19 | 2014-12-10 | 山东电力设备有限公司 | Anti-misoperation ground protection mechanism for dry type transformer |
-
2015
- 2015-12-26 CN CN201510986794.8A patent/CN105436559B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN105436559A (en) | 2016-03-30 |
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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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Electric hand drill Effective date of registration: 20210607 Granted publication date: 20180105 Pledgee: China Construction Bank Co.,Ltd. Ningbo Jiangbei sub branch Pledgor: KINGTEC INDUSTRIAL Co.,Ltd. Registration number: Y2021330000520 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |