CN105478856A - Handheld electric drill - Google Patents
Handheld electric drill Download PDFInfo
- Publication number
- CN105478856A CN105478856A CN201510986802.9A CN201510986802A CN105478856A CN 105478856 A CN105478856 A CN 105478856A CN 201510986802 A CN201510986802 A CN 201510986802A CN 105478856 A CN105478856 A CN 105478856A
- Authority
- CN
- China
- Prior art keywords
- electric drill
- drill
- slide bar
- button
- chuck
- 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.)
- Granted
Links
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
-
- 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
- B23B45/006—Keys for operating the chucks
-
- 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
- B23B45/008—Gear boxes, clutches, bearings, feeding mechanisms or like equipment
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drilling And Boring (AREA)
Abstract
A handheld electric drill comprises an electric drill body, and a drill chuck for mounting a drill bit, wherein a circle of annular groove is formed in the drill chuck, and a sliding rod is arranged in the annular groove; the end part of one end of the sliding rod extends into a key hole in the drill chuck; the part, extending into the key hole, of the sliding rod is an inclined surface; a circle of annular stopping wall which is fixed to the electric drill body is arranged at the outer side of the drill chuck; an opening is formed in the annular stopping wall; the other end of the sliding rod extends into the electric drill body, and a returning spring is arranged between the other end of the sliding rod and the inner wall of the electric drill body; one end of a pushing rod is hinged with the sliding rod, and the other end of the pushing rod is hinged with one end of a limiting rod which is arranged on a slide rail in a sliding mode; an electric drill button is arranged below the limiting rod, and a limiting groove is formed in the electric drill button; an electric drill switch is arranged at one side of the electric drill button. According to the handheld electric drill adopting the aforementioned structure, an operator can safely replace the drill bit in case that the electric drill is not powered off.
Description
Technical field
The invention belongs to field of power tools, be specifically related to a kind of electric drill.
Background technology
Electric drill is the electric tool that people the most often use, and it has conveniently, inexpensive, the advantage such as be easy to carry, deeply by the favorable comment of workman in five metals, decoration industry.But operator often needs more bit change when using electric drill, because seek conveniently, operator is the direct more bit change when electric drill does not have power-off, if oneself or other people have touched switch and make bit drills move when more bit change by mistake, is very dangerous.
Summary of the invention
For deficiency of the prior art, the invention provides a kind of electric drill.
The present invention is achieved through the following technical solutions.Hand held electric drill, comprise electric drill body and the drill chuck for installing drill bit, a ring annular groove is provided with in described drill chuck, slide bar is provided with in described cannelure, the end of described slide bar one end extends in the keyhole of drill chuck, the part that described slide bar stretches into keyhole is inclined-plane, described drill chuck is surveyed outward and is provided with a ring shape shelves wall, described annular shelves wall is fixed on electric drill body, described annular shelves wall is provided with an opening, the other end of described slide bar to extend in electric drill body and and be provided with back-moving spring between the inwall of electric drill body, one end of hinged push rod on described slide bar, one end of the hinged gag lever post be slidably arranged on slide rail of the other end of described push rod, the below of described gag lever post is electric drill button, described electric drill button is provided with stopper slot, the side of described electric drill button is provided with electric drill switch, more during bit change, operator makes slide bar move in electric drill body on the electric drill key insertion keyhole inclined-plane leaned on slide bar, slide bar drives pushrod movement and then gag lever post is moved down and inserts in stopper slot, at this moment the limited bar of electric drill button blocks and cannot press, drill bit key is extracted after operator finishes changing drill bit, one end of slide bar pushes back in keyhole by back-moving spring, gag lever post moves disengaging spacing hole.
Further, the contact surface of described slide bar and cannelure is provided with a circle ball.
Further, described drill chuck is provided with an index line.
Compared with prior art, the present invention in energising situation more bit change time, operator needs first the opening on cannelure to be aimed at keyhole, then electric drill key is inserted keyhole, the electric drill key inclined-plane leaned on slide bar makes slide bar move in electric drill body, slide bar drives pushrod movement and then gag lever post is moved down and inserts in stopper slot, at this moment the limited bar of electric drill button blocks and cannot press, drill bit key is extracted after operator finishes changing drill bit, one end of slide bar pushes back in keyhole by back-moving spring, gag lever post moves disengaging spacing hole, at this moment operator presses electric drill button, electric drill button touching electric drill switch, electric drill normally works.Adopt after said structure, though operator when electric drill does not have power-off more bit change also can not cause danger.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 be the present invention more bit change time structural representation.
Detailed description of the invention
Below in conjunction with accompanying drawing and detailed description of the invention, the invention will be further described.As shown in Figure 1 to Figure 2, hand held electric drill, comprise electric drill body 1 and the drill chuck 2 for installing drill bit, a ring annular groove 22 is provided with in described drill chuck 2, slide bar 3 is provided with in described cannelure 22, the end of described slide bar 3 one end extends in the keyhole 21 of drill chuck 2, the part that described slide bar 3 stretches into keyhole 21 is inclined-plane, the outer survey of described drill chuck 2 is provided with a ring shape shelves wall 4, described annular shelves wall 4 is fixed on electric drill body 1, described annular shelves wall 4 is provided with an opening 41, the other end of described slide bar 3 to extend in electric drill body 1 and and be provided with back-moving spring 13 between the inwall of electric drill body 1, one end of hinged push rod 6 on described slide bar 3, one end of the hinged gag lever post 7 be slidably arranged on slide rail 8 of the other end of described push rod 6, the below of described gag lever post 7 is electric drill buttons 9, described electric drill button 9 is provided with stopper slot 91, the side of described electric drill button 9 is provided with electric drill switch 11.
Described slide bar 3 is provided with a circle ball with the contact surface of cannelure 22, reduces the frictional force between slide bar 3 and cannelure 22 when drill chuck 2 rotates.
Described drill chuck 2 is provided with an index line, and when index line aims at opening 41, opening 41 aims at keyhole 21.
As long as the present invention is operator's pressing electric drill button under normal circumstances, after electric drill button leans electric drill switch, electric drill is with regard to setting in motion, more during bit change, operator wants first the opening on cannelure to be aimed at keyhole, then electric drill key is inserted keyhole, the electric drill key inclined-plane leaned on slide bar makes slide bar move in electric drill body, slide bar drives pushrod movement and then gag lever post is moved down and inserts in stopper slot, at this moment the limited bar of electric drill button blocks and cannot press, drill bit key is extracted after operator finishes changing drill bit, one end of slide bar pushes back in keyhole by back-moving spring, gag lever post moves disengaging spacing hole, at this moment operator presses electric drill button, electric drill button touching electric drill switch, electric drill normally works.Adopt after said structure, though operator when electric drill does not have power-off more bit change also can not cause danger.
Claims (3)
1. hand held electric drill, comprise electric drill body (1) and the drill chuck (2) for installing drill bit, it is characterized in that: in described drill chuck (2), be provided with a ring annular groove (22), slide bar (3) is provided with in described cannelure (22), the end of described slide bar (3) one end extends in the keyhole (21) of drill chuck (2), the part that described slide bar (3) stretches into keyhole (21) is inclined-plane, described drill chuck (2) is surveyed outward and is provided with ring shape shelves wall (4), described annular shelves wall (4) is fixed on electric drill body (1), described annular shelves wall (4) is provided with an opening (41), the other end of described slide bar (3) to extend in electric drill body (1) and and be provided with back-moving spring (13) between the inwall of electric drill body (1), one end of the upper hinged push rod (6) of described slide bar (3), one end of the hinged gag lever post (7) be slidably arranged on slide rail (8) of the other end of described push rod (6), the below of described gag lever post (7) is electric drill button (9), described electric drill button (9) is provided with stopper slot (91), the side of described electric drill button (9) is provided with electric drill switch (11), more during bit change, operator makes slide bar (3) mobile in electric drill body (1) on electric drill key (100) insertion keyhole (21) inclined-plane leaned on slide bar (3), slide bar (3) drives push rod (6) to move and then gag lever post (7) is moved down and inserts in stopper slot (91), at this moment electric drill button (9) limited bar (7) blocks and cannot press, drill bit key (100) is extracted after operator finishes changing drill bit, one end of slide bar (3) pushes back in keyhole (21) by back-moving spring (13), gag lever post (7) moves and departs from spacing hole (91).
2. hand held electric drill as claimed in claim 1, is characterized in that: described slide bar (3) is provided with a circle ball with the contact surface of cannelure (22).
3. hand held electric drill as claimed in claim 1, is characterized in that: described drill chuck (2) is provided with an index line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510986802.9A CN105478856B (en) | 2015-12-26 | 2015-12-26 | Hand held electric drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510986802.9A CN105478856B (en) | 2015-12-26 | 2015-12-26 | Hand held electric drill |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105478856A true CN105478856A (en) | 2016-04-13 |
| CN105478856B CN105478856B (en) | 2017-10-13 |
Family
ID=55666321
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510986802.9A Active CN105478856B (en) | 2015-12-26 | 2015-12-26 | Hand held electric drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105478856B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108296524A (en) * | 2018-02-05 | 2018-07-20 | 上海应用技术大学 | A kind of hand held electric drill of automatic more bit change |
Citations (6)
| 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 |
| CN2455423Y (en) * | 2000-12-28 | 2001-10-24 | 顾洪韬 | Storable electric hand drill key |
| KR20060027419A (en) * | 2004-06-30 | 2006-03-28 | 현대자동차주식회사 | Drill chuck handle structure |
| CN201768937U (en) * | 2010-08-11 | 2011-03-23 | 张家斌 | Electric hand drill |
| CN105033958A (en) * | 2012-08-16 | 2015-11-11 | 苏州宝时得电动工具有限公司 | Power tool and operation method for exchanging same |
| CN204893035U (en) * | 2015-08-14 | 2015-12-23 | 内蒙古包钢钢联股份有限公司 | Electric drill safety device |
-
2015
- 2015-12-26 CN CN201510986802.9A patent/CN105478856B/en active Active
Patent Citations (6)
| 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 |
| CN2455423Y (en) * | 2000-12-28 | 2001-10-24 | 顾洪韬 | Storable electric hand drill key |
| KR20060027419A (en) * | 2004-06-30 | 2006-03-28 | 현대자동차주식회사 | Drill chuck handle structure |
| CN201768937U (en) * | 2010-08-11 | 2011-03-23 | 张家斌 | Electric hand drill |
| CN105033958A (en) * | 2012-08-16 | 2015-11-11 | 苏州宝时得电动工具有限公司 | Power tool and operation method for exchanging same |
| CN204893035U (en) * | 2015-08-14 | 2015-12-23 | 内蒙古包钢钢联股份有限公司 | Electric drill safety device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108296524A (en) * | 2018-02-05 | 2018-07-20 | 上海应用技术大学 | A kind of hand held electric drill of automatic more bit change |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105478856B (en) | 2017-10-13 |
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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: Hand held electric drill Effective date of registration: 20210607 Granted publication date: 20171013 Pledgee: China Construction Bank Co.,Ltd. Ningbo Jiangbei sub branch Pledgor: KINGTEC INDUSTRIAL Co.,Ltd. Registration number: Y2021330000520 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |