CN105458335A - Domestic handheld electric drill - Google Patents
Domestic handheld electric drill Download PDFInfo
- Publication number
- CN105458335A CN105458335A CN201510986804.8A CN201510986804A CN105458335A CN 105458335 A CN105458335 A CN 105458335A CN 201510986804 A CN201510986804 A CN 201510986804A CN 105458335 A CN105458335 A CN 105458335A
- Authority
- CN
- China
- Prior art keywords
- electric drill
- drill
- pad
- slide bar
- tooth plate
- 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
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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
-
- 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
- B23B45/003—Attachments
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drilling And Boring (AREA)
Abstract
The invention discloses a domestic handheld electric drill. The domestic handheld electric drill comprises an electric drill body and a drill chuck which is used for mounting a drill bit, wherein a circle of annular groove is formed inside the drill chuck; a sliding rod is arranged inside the annular groove; the end part of one end of the sliding rod extends into a key hole of the drill bit; a circle of annular retaining wall is arranged at the outer side of the drill chuck; an opening is formed in the annular retaining wall; the other end of the sliding rod extends into the electric drill body; a first reset spring is arranged between the other end of the sliding rod and the inner wall of the electric drill body; a first toothed plate is arranged at the lower portion of the sliding rod and is meshed with a gear; a second toothed plate is also arranged on the gear in a meshed way; a lower wedge block is arranged on the second toothed plate; an upper wedge block matched with a wedge surface of the lower wedge block is arranged below the lower wedge block; a sliding rail is arranged at the lower portion of the upper wedge block; a gasket is arranged on the sliding rail in a sliding manner; a second reset spring is arranged at the lower portion of the gasket; an electric drill switch is arranged at one side of the gasket; an electric drill button is arranged at the other side of the gasket; two lugs are arranged on the gasket; two grooves matched with the lugs are formed in the electric drill button. By adopting the structure, no danger occurs even when an operator replaces the drill bit under a condition 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.A kind of Household handheld 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 the first back-moving spring between the inwall of electric drill body, the below of described slide bar is provided with the first tooth plate, described first tooth plate meshing gear, on described gear, also engagement is provided with the second tooth plate, described second tooth plate is provided with lower wedge block, the below of described lower wedge block is provided with the upper voussoir coordinated with its wedge surface, slide rail is provided with below described upper voussoir, described slide rail slides and is provided with pad, the below of described pad is provided with the second back-moving spring, the side of described pad is provided with electric drill switch, the opposite side of described pad is provided with electric drill button, described pad is provided with two projections, described electric drill button is provided with two grooves coordinated with projection, 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, the first tooth plate driven wheel on slide bar rotates, gear driven second tooth plate moves, lower wedge block on second tooth plate and upper voussoir interact and voussoir are moved down, and then pad is moved down until the projection on pad moves to groove location, at this moment operator presses electric drill button, projection inserts in groove, pad touches less than electric drill switch, operator extracts drill bit key after finishing changing drill bit, one end of slide bar pushes back in keyhole by the first back-moving spring, second back-moving spring promotes pad moves simultaneously, projection and groove stagger.
Further, described projection is distributed in the two ends of pad.
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, the first tooth plate driven wheel on slide bar rotates, gear driven second tooth plate moves, lower wedge block on second tooth plate and upper voussoir interact and voussoir are moved down, and then pad is moved down until the projection on pad moves to groove location, at this moment operator presses electric drill button, projection inserts in groove, pad touches less than electric drill switch, operator extracts drill bit key after finishing changing drill bit, one end of slide bar pushes back in keyhole by the first back-moving spring, second back-moving spring promotes pad moves simultaneously, projection and groove stagger, at this moment operator presses electric drill button, electric drill button promotes pad 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, a kind of Household handheld 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 the first back-moving spring 13 between the inwall of electric drill body 1, the below of described slide bar 3 is provided with the first tooth plate 5, described first tooth plate 5 meshing gear 6, on described gear 6, also engagement is provided with the second tooth plate 7, described second tooth plate 7 is provided with lower wedge block 14, the below of described lower wedge block 14 is provided with the upper voussoir 15 coordinated with its wedge surface, slide rail 8 is provided with below described upper voussoir 15, described slide rail 8 slides and is provided with pad 10, the below of described pad 10 is provided with the second back-moving spring 12, the side of described pad 10 is provided with electric drill switch 9, snap switch selected by described electric drill switch 11, the opposite side of described pad 10 is provided with electric drill button 11, described pad 10 is provided with two projections 101, described electric drill button 11 is provided with two grooves 111 coordinated with projection 101.
Described projection 101 is distributed in the two ends of pad 10, pad 10 uniform stressed when making operator presses electric drill button 9.
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's operator's pressing electric drill button under normal circumstances, after electric drill button promotion pad leans electric drill switch, electric drill is with regard to setting in motion, more during bit change, 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, the first tooth plate driven wheel on slide bar rotates, gear driven second tooth plate moves, lower wedge block on second tooth plate and upper voussoir interact and voussoir are moved down, and then pad is moved down until the projection on pad moves to groove location, at this moment operator presses electric drill button, projection inserts in groove, pad touches less than electric drill switch, operator extracts drill bit key after finishing changing drill bit, one end of slide bar pushes back in keyhole by the first back-moving spring, second back-moving spring promotes pad moves simultaneously, projection and groove stagger, at this moment operator presses electric drill button, electric drill button promotes pad 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 (4)
1. a Household handheld 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 the first back-moving spring (13) between the inwall of electric drill body (1), the below of described slide bar (3) is provided with the first tooth plate (5), described first tooth plate (5) meshing gear (6), on described gear (6), also engagement is provided with the second tooth plate (7), described second tooth plate (7) is provided with lower wedge block (14), the below of described lower wedge block (14) is provided with the upper voussoir (15) coordinated with its wedge surface, described upper voussoir (15) below is provided with slide rail (8), the upper slip of described slide rail (8) is provided with pad (10), the below of described pad (10) is provided with the second back-moving spring (12), the side of described pad (10) is provided with electric drill switch (9), the opposite side of described pad (10) is provided with electric drill button (11), described pad (10) is provided with two projections (101), described electric drill button (11) is provided with two grooves (111) coordinated with projection (101), 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), the first tooth plate (5) driven wheel (6) on slide bar (3) rotates, gear (6) drives the second tooth plate (7) mobile, lower wedge block (14) on second tooth plate (7) and upper voussoir (15) interact and voussoir (15) are moved down, and then pad (10) is moved down until the projection (101) on pad (10) moves to groove (111) position, at this moment operator presses electric drill button (11), projection (101) inserts in groove (111), pad (10) touches less than electric drill switch (9), operator extracts drill bit key (100) after finishing changing drill bit, one end of slide bar 3 pushes back in keyhole (21) by the first back-moving spring (13), second back-moving spring (12) promotes pad (10) moves simultaneously, projection (101) and groove (91) stagger.
2. a kind of Household handheld electric drill as claimed in claim 1, is characterized in that: described projection (101) is distributed in the two ends of pad (10).
3. a kind of Household handheld 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).
4. a kind of Household handheld 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 |
|---|---|---|---|
| CN201510986804.8A CN105458335B (en) | 2015-12-26 | 2015-12-26 | A kind of Household handheld electric drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510986804.8A CN105458335B (en) | 2015-12-26 | 2015-12-26 | A kind of Household handheld electric drill |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105458335A true CN105458335A (en) | 2016-04-06 |
| CN105458335B CN105458335B (en) | 2017-10-17 |
Family
ID=55596737
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510986804.8A Active CN105458335B (en) | 2015-12-26 | 2015-12-26 | A kind of Household handheld electric drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105458335B (en) |
Citations (8)
| 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 |
| DE29521475U1 (en) * | 1994-07-29 | 1997-04-30 | Zettl GmbH CNC Präzisions- und Sonderwerkzeuge, 87488 Betzigau | Chuck |
| KR20060027419A (en) * | 2004-06-30 | 2006-03-28 | 현대자동차주식회사 | Drill chuck handle structure |
| CN102528770A (en) * | 2010-10-28 | 2012-07-04 | 喜利得股份公司 | Control method for a machine tool and 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 CN201510986804.8A patent/CN105458335B/en active Active
Patent Citations (8)
| 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 |
| DE29521475U1 (en) * | 1994-07-29 | 1997-04-30 | Zettl GmbH CNC Präzisions- und Sonderwerkzeuge, 87488 Betzigau | Chuck |
| KR20060027419A (en) * | 2004-06-30 | 2006-03-28 | 현대자동차주식회사 | Drill chuck handle structure |
| CN102528770A (en) * | 2010-10-28 | 2012-07-04 | 喜利得股份公司 | Control method for a machine tool and 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105458335B (en) | 2017-10-17 |
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|---|---|---|---|
| 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 | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A kind of household hand-held electric drill Effective date of registration: 20210607 Granted publication date: 20171017 Pledgee: China Construction Bank Co.,Ltd. Ningbo Jiangbei sub branch Pledgor: KINGTEC INDUSTRIAL Co.,Ltd. Registration number: Y2021330000520 |