CN107336181A - Portable type screwdriver - Google Patents
Portable type screwdriver Download PDFInfo
- Publication number
- CN107336181A CN107336181A CN201710622378.9A CN201710622378A CN107336181A CN 107336181 A CN107336181 A CN 107336181A CN 201710622378 A CN201710622378 A CN 201710622378A CN 107336181 A CN107336181 A CN 107336181A
- Authority
- CN
- China
- Prior art keywords
- helical spring
- knife
- silicon steel
- steel post
- handle
- 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
- 229910000976 Electrical steel Inorganic materials 0.000 claims abstract description 29
- 230000001939 inductive effect Effects 0.000 claims description 7
- 230000006698 induction Effects 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000005284 excitation Effects 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B15/00—Screwdrivers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
- B25B23/02—Arrangements for handling screws or nuts
- B25B23/08—Arrangements for handling screws or nuts for holding or positioning screw or nut prior to or during its rotation
- B25B23/12—Arrangements for handling screws or nuts for holding or positioning screw or nut prior to or during its rotation using magnetic means
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
The present invention provides a kind of portable type screwdriver, including handle of a knife and the knife bar that is extended downwardly along handle of a knife axis；The bottom of the knife bar is made up of one section of silicon steel post, and the lower end of the silicon steel post forms cutter head；One section of helical spring is arranged with the silicon steel post, the upper end of the helical spring is fixed, and the both ends of helical spring are electrically connected to the electric power-feeding structure in the handle of a knife；And in its natural state, there is 0.5 1mm radial clearance between the inner side of the helical spring and the silicon steel post.The portable type screwdriver not only can with automatic Picking screw, and by screw load screw during self-demagnetization.
Description
Technical field
The present invention relates to hardware ＆ tools field, especially, is related to a kind of screwdriver.
Background technology
Screwdriver is a kind of conventional hardware ＆ tools, for loading and unloading screw；Due to screw volume under normal circumstances compared with
It is small, it is not easy to pick up, therefore more screwdriver has certain magnetic, can directly glue and be placed on screw after inhaling screw
It is interior；But, it is necessary to adjust the cutter head position of screwdriver after screw is put into screw, make the ten of cutter head face and embedded screw
In word or a word groove, the turn of the screw could be continued；In the process, because screw is always adhered to cutter head, cutter head is followed to live
It is dynamic, therefore be difficult that driver bit and screw are adjusted to ideal position state；This not only delays the more time, and easily
Twist screw askew, or even cause screw thread damage.
The content of the invention
In view of the above-mentioned problems, it is an object of the invention to provide a kind of portable type screwdriver, the portable type screwdriver is not only
Can with automatic Picking screw, and by screw load screw during self-demagnetization.
The technical solution adopted for the present invention to solve the technical problems is：The portable type screwdriver includes handle of a knife and along handle of a knife
The knife bar that axis extends downwardly；The bottom of the knife bar is made up of one section of silicon steel post, and the lower end of the silicon steel post forms cutter head；Institute
State and one section of helical spring is arranged with silicon steel post, the upper end of the helical spring is fixed, and the both ends of helical spring are electrically connected with
Electric power-feeding structure in the handle of a knife；And in its natural state, have between the inner side of the helical spring and the silicon steel post
0.5-1mm radial clearance.
Preferably, the electric power-feeding structure includes the dry cell in handle of a knife, and current-limiting resistance；The dry cell,
Current-limiting resistance, helical spring form a series circuit；Further, the handle of a knife is provided with the switch portion of the series circuit
Part.Further, an inductive switch is also concatenated in the series circuit, the inductive switch is located at the silicon including one
Induction coil inside steel column, and an electrothermal relay.
The beneficial effects of the present invention are：The portable type screwdriver is when in use, and described after the helical spring is powered
Silicon steel post forms electromagnet, can easily draw screw, and after screw is put into screw, need to only it helical spring is leaned against spiral shell
On the inwall of hole, then helical spring is pressed onto the surface of the silicon steel post by screw inwall, makes each the circle spring silk and silicon steel of helical spring
Post forms equipotentiality body, so that the excitation effect of helical spring disappears, driver bit falls magnetic, so as to be easy to be adjusted to screw
Preferable location status.
Brief description of the drawings
Fig. 1 is the schematic diagram of this portable type screwdriver one embodiment.
Fig. 2 is schematic diagram of Fig. 1 embodiments when stretching into screw.
Fig. 3 is an electrical structure embodiment schematic diagram of this portable type screwdriver.
Embodiment
The present invention is further described with reference to the accompanying drawings and examples：
In the embodiment shown in Fig. 1, Fig. 2, the portable type screwdriver includes handle of a knife 1 and the knife bar extended downwardly along handle of a knife axis
2；The bottom of the knife bar 2 is made up of one section of silicon steel post 21, and the lower end of the silicon steel post 21 forms cutter head 22；The silicon steel post 21
On be arranged with one section of helical spring 3, the upper end of the helical spring 3 is fixed, and the both ends of helical spring 3 be electrically connected to it is described
Electric power-feeding structure in handle of a knife 1；And in its natural state, have between the inner side of the helical spring 3 and the silicon steel post 21
0.5-1mm radial clearance.
Above-mentioned portable type screwdriver, the electric power-feeding structure include the dry cell 41 in handle of a knife 1, and current limliting electricity
Resistance, current-limiting resistance is on the circuit board 42 in handle of a knife 1；The dry cell 41, current-limiting resistance, helical spring 3 form a string
Join circuit；The handle of a knife 1 is provided with the switch block 5 of the series circuit.
Above-mentioned portable type screwdriver when in use, after the helical spring 3 is powered, electromagnetism is formed with the silicon steel post 21
Body, screw can be easily drawn, and after screw 6 is put into screw 60, as shown in Fig. 2 only helical spring 3 need to be made to lean against spiral shell
On the inwall of hole 60, then helical spring 3 is pressed onto the surface of the silicon steel post 21 by screw inwall（Due to helical spring 3 and silicon steel post
Interval between 21 is minimum, and helical spring 3 has good flexibility, therefore when substantially screwdriver is movable in screw, as long as
Helical spring 3 touches screw inwall, and helical spring 3 just touches silicon steel post 21 simultaneously.）, so that each circle of helical spring 3
Spring silk forms equipotentiality body with silicon steel post 21, so that the excitation effect of helical spring 3 disappears, driver bit 22 falls magnetic, so as to easily
In screw 6 is adjusted into preferable location status.
In addition, for the portable type screwdriver, a preferred embodiment of its electrical structure is as shown in figure 3, the series connection
An inductive switch K is also concatenated in circuit；I.e. described dry cell 41, inductive switch K, helical spring 3, current-limiting resistance R form string
Join loop；The inductive switch K includes an induction coil inside the silicon steel post 21（It is not shown）, and a heat
Relay（It is not shown）.
By this electrical structure embodiment, after the screw drawn by cutter head 22 is loaded screw by the screwdriver, make silicon steel
The inwall of helical spring 3 outside post 21 and screw continuously touch it is several under, actually due to helical spring 3, silicon steel post 21, screw 60
Between the equal very little in gap, therefore need to only make driver bit shake several lower；Now, because helical spring 3 is continuously switched on, short circuit
Several times, the magnetic field in silicon steel post 21 is caused to be formed continuously several subpulses, so that forming larger sensing in the induction coil
Electric current, the electrothermal relay delay is promoted to disconnect；So, even if during adjustment screw is fiddled with using driver bit,
Can not remain that helical spring 3 is pressed against on screw inwall, can also make driver bit keep a period of time without magnetic state,
In order to which screw is adjusted into preferable position.Certainly, the off delay duration of the electrothermal relay is unsuitable excessive, should be reasonable
The delay parameter of selection electrothermal relay, off delay time are more suitable in the 3-5 seconds.
The foregoing is only presently preferred embodiments of the present invention, be not intended to limit the invention, it is all the present invention spirit and
Within principle, any modification for being made, equivalent substitution, it should be included in the scope of the protection.
Claims (4)
1. a kind of portable type screwdriver, including handle of a knife（1）And the knife bar extended downwardly along handle of a knife axis（2）；It is characterized in that：Institute
State knife bar（2）Bottom by one section of silicon steel post（21）Form, the silicon steel post（21）Lower end formed cutter head（22）；The silicon steel
Post（21）On be arranged with one section of helical spring（3）, the helical spring（3）Upper end fix, and helical spring（3）Both ends electricity
Property is connected to the handle of a knife（1）Interior electric power-feeding structure；And in its natural state, the helical spring（3）Inner side and the silicon
Steel column（21）Between have 0.5-1mm radial clearance.
2. portable type screwdriver according to claim 1, it is characterised in that：The electric power-feeding structure includes being located at handle of a knife（1）
Interior dry cell（41）, and current-limiting resistance（R）；The dry cell（41）, current-limiting resistance（R）, helical spring（3）Form one
Series circuit.
3. portable type screwdriver according to claim 2, it is characterised in that：The handle of a knife（1）It is provided with the series electrical
The switch block on road（5）.
4. the portable type screwdriver according to Claims 2 or 3, it is characterised in that：One is also concatenated in the series circuit
Inductive switch（K）, the inductive switch（K）The silicon steel post is located at including one（21）Internal induction coil, and one
Electrothermal relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710622378.9A CN107336181B (en) | 2017-07-27 | 2017-07-27 | Portable type screwdriver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710622378.9A CN107336181B (en) | 2017-07-27 | 2017-07-27 | Portable type screwdriver |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107336181A true CN107336181A (en) | 2017-11-10 |
| CN107336181B CN107336181B (en) | 2019-11-29 |
Family
ID=60217557
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710622378.9A Active CN107336181B (en) | 2017-07-27 | 2017-07-27 | Portable type screwdriver |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107336181B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0825242A (en) * | 1994-07-14 | 1996-01-30 | Nitto Seiko Co Ltd | Screw fastening tool |
| CN101468455A (en) * | 2007-12-26 | 2009-07-01 | 上海乐金广电电子有限公司 | Electro-magnetism scroll driver |
| JP2010115769A (en) * | 2008-11-14 | 2010-05-27 | Kenji Kojima | Screw head fastening depth adjustable bit |
| CN202964501U (en) * | 2012-12-01 | 2013-06-05 | 新余钢铁集团有限公司 | Safety electromagnetic screwdriver |
| CN205363711U (en) * | 2015-12-03 | 2016-07-06 | 常州新区长江冲压件有限公司 | Screwdriver |
| CN205660616U (en) * | 2016-06-15 | 2016-10-26 | 国家电网公司 | Linear controllable electromagnetism screwdriver of magnetic force |
| CN106926172A (en) * | 2015-12-29 | 2017-07-07 | 青岛捷宇达电子科技有限公司 | A kind of controllable screwdriver of magnetic |
-
2017
- 2017-07-27 CN CN201710622378.9A patent/CN107336181B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0825242A (en) * | 1994-07-14 | 1996-01-30 | Nitto Seiko Co Ltd | Screw fastening tool |
| CN101468455A (en) * | 2007-12-26 | 2009-07-01 | 上海乐金广电电子有限公司 | Electro-magnetism scroll driver |
| JP2010115769A (en) * | 2008-11-14 | 2010-05-27 | Kenji Kojima | Screw head fastening depth adjustable bit |
| CN202964501U (en) * | 2012-12-01 | 2013-06-05 | 新余钢铁集团有限公司 | Safety electromagnetic screwdriver |
| CN205363711U (en) * | 2015-12-03 | 2016-07-06 | 常州新区长江冲压件有限公司 | Screwdriver |
| CN106926172A (en) * | 2015-12-29 | 2017-07-07 | 青岛捷宇达电子科技有限公司 | A kind of controllable screwdriver of magnetic |
| CN205660616U (en) * | 2016-06-15 | 2016-10-26 | 国家电网公司 | Linear controllable electromagnetism screwdriver of magnetic force |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107336181B (en) | 2019-11-29 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20191105 Address after: 311800 Zhejiang city of Shaoxing province Zhuji City Huang Shan Zhen Village drive tower No. 510 Yamaguchi Dingxin Applicant after: Zhuji Yihe Project Investment Co., Ltd Address before: Wujiang Pingwang Town District of Suzhou City, Jiangsu province 215000 Yang village committee Applicant before: Zhong Xingying |
|
| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201016 Address after: 223700, Jiangsu County, Suqian City, Siyang Lu town industrial concentration area Patentee after: SIYANG DEFULAI HARDWARE PRODUCTS Co.,Ltd. Address before: 311800 Zhejiang city of Shaoxing province Zhuji City Huang Shan Zhen Village drive tower No. 510 Yamaguchi Dingxin Patentee before: Zhuji Yihe Project Investment Co.,Ltd. |
|
| TR01 | Transfer of patent right |