CN107336181B - Portable type screwdriver - Google Patents
Portable type screwdriver Download PDFInfo
- Publication number
- CN107336181B CN107336181B CN201710622378.9A CN201710622378A CN107336181B CN 107336181 B CN107336181 B CN 107336181B CN 201710622378 A CN201710622378 A CN 201710622378A CN 107336181 B CN107336181 B CN 107336181B
- Authority
- CN
- China
- Prior art keywords
- helical spring
- silicon steel
- steel column
- knife handle
- portable type
- 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.)
- Active
Links
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 knife handle and the knife bar extended downwardly along knife handle axis；The lower part of the knife bar is made of one section of silicon steel column, and the lower end of the silicon steel column forms cutter head；One section of helical spring is arranged on the silicon steel column, the upper end of the helical spring is fixed, and the both ends of helical spring are electrically connected to the power supply structure in the knife handle；And in its natural state, with the radial clearance of 0.5-1mm between the inside of the helical spring and the silicon steel column.The portable type screwdriver not only can with automatic Picking screw, and by screw be packed into screw hole during self-demagnetization.
Description
Technical field
The present invention relates to hardware tool fields, particularly, are related to a kind of screwdriver.
Background technique
Screwdriver is a kind of common hardware tool, for loading and unloading screw；Due to screw volume under normal conditions compared with
It is small, it is not easy to pick up, therefore more screwdriver has certain magnetism, can directly glue and be placed on screw hole after inhaling screw
It is interior；However after screw is put into screw hole, need to adjust the cutter head position of screwdriver, make cutter head face and is embedded in the ten of screw
In word or a word groove, the turn of the screw could be continued；In the process, since screw is always adhered to cutter head, follow cutter head living
It is dynamic, therefore be difficult driver bit and screw being adjusted to ideal position state；This not only delays the more time, and is easy
It twists screw askew, or even causes screw hole thread damage.
Summary of the invention
In view of the above-mentioned problems, the portable type screwdriver is not only the purpose of the present invention is to provide a kind of portable type screwdriver
Can with automatic Picking screw, and by screw be packed into screw hole during self-demagnetization.
The technical solution adopted by the present invention to solve the technical problems is: the portable type screwdriver includes knife handle and along knife handle
The knife bar that axis extends downwardly；The lower part of the knife bar is made of one section of silicon steel column, and the lower end of the silicon steel column forms cutter head；Institute
It states and is arranged with one section of helical spring on silicon steel column, the upper end of the helical spring is fixed, and the both ends of helical spring are electrically connected
Power supply structure in the knife handle；And in its natural state, have between the inside of the helical spring and the silicon steel column
The radial clearance of 0.5-1mm.
Preferably, the power supply structure includes the dry cell and current-limiting resistance in knife handle；The dry cell,
Current-limiting resistance, helical spring constitute a series circuit；Further, the knife handle is equipped with the switch portion of the series circuit
Part.Further, an inductive switch is also concatenated in the series circuit, the inductive switch includes one and is set to the silicon
Induction coil and an electrothermal relay inside steel column.
The beneficial effects of the present invention are: the portable type screwdrivers when in use, and described after the helical spring is powered
Silicon steel column constitutes electromagnet, can easily draw screw, and after screw is put into screw hole, need to only helical spring be made to lean against spiral shell
On the inner wall of hole, then helical spring is pressed onto the surface of the silicon steel column by screw hole inner wall, makes each circle spring silk and silicon steel of helical spring
Column forms equipotentiality body, so that the excitation effect of helical spring be made to disappear, driver bit falls magnetic, to be easy to for screw being adjusted to
Ideal location status.
Detailed description of the invention
Fig. 1 is the schematic diagram of this portable type screwdriver one embodiment.
Fig. 2 is schematic diagram of Fig. 1 embodiment when protruding into screw hole.
Fig. 3 is an electrical structure embodiment schematic diagram of this portable type screwdriver.
Specific embodiment
Present invention will be further explained below with reference to the attached drawings and examples:
In Fig. 1, embodiment shown in Fig. 2, which includes knife handle 1 and extends downwardly along knife handle axis
Knife bar 2；The lower part of the knife bar 2 is made of one section of silicon steel column 21, and the lower end of the silicon steel column 21 forms cutter head 22；The silicon steel
One section of helical spring 3 is arranged on column 21, the upper end of the helical spring 3 is fixed, and the both ends of helical spring 3 are electrically connected to
Power supply structure in the knife handle 1；And in its natural state, have between the inside of the helical spring 3 and the silicon steel column 21
There is the radial clearance of 0.5-1mm.
Above-mentioned portable type screwdriver, the power supply structure include dry cell 41 and current limliting electricity in knife handle 1
Resistance, current-limiting resistance are set on the circuit board 42 in knife handle 1；The dry cell 41, current-limiting resistance, helical spring 3 constitute a string
Join circuit；The knife handle 1 is equipped with the switch block 5 of the series circuit.
Above-mentioned portable type screwdriver when in use, after the helical spring 3 is powered, constitutes electromagnetism with the silicon steel column 21
Body can easily draw screw, and after screw 6 is put into screw hole 60, as shown in Fig. 2, only helical spring 3 need to be made to lean against spiral shell
On 60 inner wall of hole, then helical spring 3 is pressed onto the surface of the silicon steel column 21 (due to helical spring 3 and silicon steel column by screw hole inner wall
Interval between 21 is minimum, and helical spring 3 has good flexibility, therefore when substantially screwdriver is movable in screw hole, as long as
Helical spring 3 touches screw hole inner wall, and helical spring 3 just touches silicon steel column 21 simultaneously.), to make each circle of helical spring 3
Spring silk and silicon steel column 21 form equipotentiality body, so that the excitation effect of helical spring 3 be made to disappear, driver bit 22 falls magnetic, thus easily
In screw 6 is adjusted to ideal location status.
In addition, one preferred embodiment of electrical structure is as shown in figure 3, the series connection for the portable type screwdriver
An inductive switch K is also concatenated in circuit；The i.e. described dry cell 41, inductive switch K, helical spring 3, current-limiting resistance R constitute string
Join circuit；The inductive switch K includes an induction coil (not shown) being set to inside the silicon steel column 21 and a heat
Relay (not shown).
Make silicon steel after the screw drawn by cutter head 22 is packed into screw hole by the screwdriver by this electrical structure embodiment
The inner wall of helical spring 3 outside column 21 and screw hole continuously touch it is several under, actually due to helical spring 3, silicon steel column 21, screw hole 60
Between the equal very little in gap, therefore need to only make driver bit shake several lower；At this point, since helical spring 3 is continuously switched on, short circuit
Several times, the magnetic field in silicon steel column 21 is caused to be formed continuously several subpulses, to make to form biggish induction in the induction coil
Electric current promotes the electrothermal relay delay to disconnect；Even if in this way, using driver bit fiddle with adjustment screw during,
Cannot remain that helical spring 3 is pressed against on screw hole inner wall, can also make driver bit keep a period of time without magnetic state,
In order to which screw is adjusted to ideal position.Certainly, the off delay duration of the electrothermal relay should not be too large, Ying Heli
The delay parameter of electrothermal relay is selected, the off delay time is more suitable at 3-5 seconds.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and
Within principle, made any modification, equivalent replacement be should all be included in the protection scope of the present invention.
Claims (4)
1. a kind of portable type screwdriver, including knife handle (1) and the knife bar (2) extended downwardly along knife handle axis；It is characterized by: institute
The lower part for stating knife bar (2) is made of one section of silicon steel column (21), and the lower end of the silicon steel column (21) forms cutter head (22)；The silicon steel
One section of helical spring (3) is arranged on column (21), the upper end of the helical spring (3) is fixed, and the both ends electricity of helical spring (3)
Property is connected to the power supply structure in the knife handle (1)；And in its natural state, the inside of the helical spring (3) and the silicon
With the radial clearance of 0.5-1mm between steel column (21)；Lean against helical spring on screw hole inner wall, then helical spring is by screw hole
Wall pressure makes each circle spring silk of helical spring and silicon steel column form equipotentiality body to the surface of the silicon steel column, thus helical spring
Excitation effect disappears, and driver bit falls magnetic.
2. portable type screwdriver according to claim 1, it is characterised in that: the power supply structure includes being set to knife handle (1)
Interior dry cell (41) and current-limiting resistance (R)；The dry cell (41), current-limiting resistance (R), helical spring (3) constitute one
Series circuit.
3. portable type screwdriver according to claim 2, it is characterised in that: the knife handle (1) is equipped with the series electrical
The switch block (5) on road.
4. portable type screwdriver according to claim 2 or 3, it is characterised in that: also concatenate one in the series circuit
Inductive switch (K), the inductive switch (K) include one and are set to the internal induction coil of the silicon steel column (21) 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 CN107336181A (en) | 2017-11-10 |
| CN107336181B true 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 |
|---|---|
| CN107336181A (en) | 2017-11-10 |
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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 | ||
| 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 |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| 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. |