CN108927757A - Screwdriver bit - Google Patents
Screwdriver bit Download PDFInfo
- Publication number
- CN108927757A CN108927757A CN201810890342.3A CN201810890342A CN108927757A CN 108927757 A CN108927757 A CN 108927757A CN 201810890342 A CN201810890342 A CN 201810890342A CN 108927757 A CN108927757 A CN 108927757A
- Authority
- CN
- China
- Prior art keywords
- screwdriver bit
- magnet ring
- screw
- cutter head
- elastic component
- 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.)
- Pending
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
- B25B15/02—Screwdrivers operated by rotating the handle
-
- 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
- B25B21/00—Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose
-
- 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 discloses a kind of screwdriver bit, and the screwdriver bit includes: screwdriver bit bar, and wherein one end of the screwdriver bit bar is equipped with cutter head compatible with screw;Magnet ring, the magnet ring are installed on the cutter head, and the magnet ring is used to adsorb the screw on the cutter head;Elastic component, the elastic component are installed on the screwdriver bit bar, and one end of the elastic component is connected with the magnet ring, so that the magnet ring is moved up along the axis of the screwdriver bit bar.In technical solution of the present invention, the elastic component for adsorbing the magnet ring of screw by setting and magnet ring being moved along the axis of screwdriver bit bar, adsorbs screw by magnet ring, avoids the occurrence of the phenomenon that screw falls off easily, it is easy to cutter head and screw cooperates, convenient for promotes the efficiency to screw.
Description
Technical field
The present invention relates to screwdriver bit field, in particular to a kind of screwdriver bit.
Background technique
Due to the release of new product, new manufacturing processing technic is needed, is the placement that lies low when TV assembles, new process requirement
Screw is beaten from television base direction to day side direction, i.e., screw is squeezed into for level.In the prior art, conventional screwdriver bit only has top
It is magnetic, the top of screwdriver bit and the contact area of screw are small, cause screwdriver bit small to the adsorption capacity of screw, are being horizontally mounted screw
When, screw is still easy to fall off, is not easy to assembling of the staff to television set.
Summary of the invention
The main object of the present invention is to propose a kind of screwdriver bit, it is intended to solve screwdriver bit in the prior art and be horizontally mounted spiral shell
The problem of screw falls off is easy to appear when silk.
To achieve the above object, the present invention proposes a kind of screwdriver bit, and the screwdriver bit includes: screwdriver bit bar, described batch
Wherein one end of head rod is equipped with cutter head compatible with screw;Magnet ring, the magnet ring are installed on the cutter head, and the magnet ring is used
The screw on the absorption cutter head;Elastic component, the elastic component are installed on the screwdriver bit bar, and the one of the elastic component
End is connected with the magnet ring, so that the magnet ring is moved up along the axis of the screwdriver bit bar.
Preferably, the elastic component connected under the state of not stressing one end of the magnet ring and the end face of the cutter head away from
From the length for being greater than the magnet ring.
Preferably, the screwdriver bit bar is equipped with positive stop lug boss, and the elastic component is away from described in the connection of one end of the magnet ring
Positive stop lug boss.
Preferably, the positioning region for orientation is additionally provided between the magnet ring and the screwdriver bit bar.
Preferably, the positioning region includes location hole and locating piece, and the location hole is long hole, the length of the long hole
Direction is axial parallel with the screwdriver bit bar, and described locating piece one end is installed on the magnet ring, and the other end extends to the length
Kong Zhong, and in axial movement of the magnet ring along the screwdriver bit bar, it is moved in the long hole.
Preferably, the locating piece is locating rod, and the circumferential direction of the magnet ring is equipped with compatible with the locating rod logical
Hole, the locating rod are installed in the through hole through the long hole.
Preferably, the diameter of the locating rod is adapted with the width of the long hole.
Preferably, the elastic component is spring.
Preferably, the cutter head includes manifold or crosshead or any one of turret head or wabbler.
Preferably, the circumferential direction of the screwdriver bit bar is equipped with annular groove, and the annular groove is located remotely from the cutter head
Side, the annular groove by electric screw driver for being locked.
In technical solution of the present invention, the magnet ring of screw is adsorbed by setting and magnet ring is moved along the axis of screwdriver bit bar
Dynamic elastic component adsorbs screw by magnet ring, avoids the occurrence of the phenomenon that screw falls off easily, is easy to cutter head and screw cooperates, be convenient for
Promote the efficiency to screw.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
The structure shown according to these attached drawings obtains other attached drawings.
Fig. 1 is the first viewing angle constructions schematic diagram of screwdriver bit of the present invention;
Fig. 2 is the second viewing angle constructions schematic diagram of screwdriver bit of the present invention;
Fig. 3 is the third viewing angle constructions schematic diagram of screwdriver bit of the present invention;
Fig. 4 is the configuration schematic diagram of screwdriver bit of the present invention.
Drawing reference numeral explanation:
Label | Title | Label | Title |
10 | Screwdriver bit bar | 101 | Cutter head |
102 | Positive stop lug boss | 103 | Long hole |
104 | Annular groove | 20 | Magnet ring |
201 | Through-hole | 202 | Locating rod |
30 | Elastic component |
The embodiments will be further described with reference to the accompanying drawings for the realization, the function and the advantages of the object of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiment is only a part of the embodiments of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts it is all its
His embodiment, shall fall within the protection scope of the present invention.
It is to be appreciated that if related in the embodiment of the present invention directionality instruction (such as up, down, left, right, before and after, cross,
It is vertical ...), then directionality instruction is only used for explaining opposite between each component under a certain particular pose (as shown in the picture)
Positional relationship, motion conditions etc., if the particular pose changes, directionality instruction is also correspondingly changed correspondingly.
In addition, being somebody's turn to do " first ", " second " etc. if relating to the description of " first ", " second " etc. in the embodiment of the present invention
Description be used for description purposes only, be not understood to indicate or imply its relative importance or implicitly indicate indicated skill
The quantity of art feature." first " is defined as a result, the feature of " second " can explicitly or implicitly include at least one spy
Sign.It in addition, the technical solution between each embodiment can be combined with each other, but must be with those of ordinary skill in the art's energy
It is enough realize based on, will be understood that the knot of this technical solution when conflicting or cannot achieve when occurs in the combination of technical solution
Conjunction is not present, also not the present invention claims protection scope within.
The present invention proposes a kind of screwdriver bit, and one kind being easily installed screw, the screwdriver bit for avoiding screw from falling easily.
- Fig. 4 referring to Fig.1, the present invention propose a kind of screwdriver bit, and the screwdriver bit includes: screwdriver bit bar 10, described batch
Wherein one end of head rod 10 is equipped with cutter head 101 compatible with screw;Magnet ring 20, the magnet ring 20 are installed in the cutter head 101
On, the magnet ring 20 is used to adsorb the screw on the cutter head 101;Elastic component 30, the elastic component 30 are installed in described
On screwdriver bit bar 10, one end of the elastic component 30 is connected with the magnet ring 20, so that the magnet ring 20 is along the screwdriver bit bar 10
Axis moves up.
Specifically, the screwdriver bit is for installing screw, wherein the screwdriver bit can match with electric screw driver
It closes, can also be matched with handle, by manually tightening screw.Described 10 one end of screwdriver bit bar is used to match with electric screw driver
It closes, the other end of the screwdriver bit bar 10 is equipped with the cutter head 101 matched with screw, tightens screw by the cutter head 101.The knife
First 101 include manifold or crosshead or any one of turret head or wabbler, and different cutter heads 101 is used for and different rule
The screw of lattice matches.The magnet ring 20 is installed on the cutter head 101, and the magnet ring 20 is close to the end face of the cutter head 101
For sucking screw, avoid the phenomenon that screw is fallen occur during screw is installed, meanwhile, by using the magnet ring 20
Mode suck screw, suck screw compared to what is covered with magnetic cylinder, screw is accommodated in magnetic cylinder set, the structure size of screwdriver bit
It is small, avoid the phenomenon that interfering during installing screw.One end of the elastic component 30 is connected with the magnet ring 20,
The other end of the elastic component 30 is installed on the screwdriver bit bar 10, so that installing the process of screw by the screwdriver bit
In, the magnet ring 20 can match convenient for the cutter head 101 with screw, and tighten spiral shell along the axial movement of the screwdriver bit bar 10
Silk.
In technical solution of the present invention, the cutter head 101 be crosshead, by setting absorption screw the magnet ring 20 and
The elastic component 30 that magnet ring 20 is moved along the axis of screwdriver bit bar 10 adsorbs screw by the magnet ring 20, avoids the occurrence of
The phenomenon that screw falls off easily, is easy to cutter head 101 and screw cooperates, and convenient for promoting the efficiency to screw, reduces the behaviour of employee
Make difficulty.
Further, the elastic component 30 connected under the state of not stressing the magnet ring 20 one end and the cutter head 101
End face distance be greater than the magnet ring 20 length.It is understood that the position of the magnet ring 20 and the cutter head 101 is closed
System can also be other kinds, for example, the elastic component 30 connected under the state of not stressing the magnet ring 20 one end and the knife
The distance of first 101 end face is equal to the length of the magnet ring 20;Alternatively, described in the elastic component 30 connects under the state of not stressing
One end of magnet ring 20 is less than the length of the magnet ring 20 at a distance from the end face of the cutter head 101.It is described in the embodiment of the present invention
The end face of cutter head 101 protrudes from the magnet ring 20, and when the screwdriver bit installs screw, the magnet ring 20 sucks spiral shell first
Silk, since the cutter head 101 protrudes from the magnet ring 20, the end convenient for the cutter head 101 is matched with screw, first by institute
It states cutter head 101 and Primary Location is carried out to screw, during installing to screw, the magnet ring 20 compresses the elastic component
30, the magnet ring 20 drives screw to move along the direction far from the cutter head 101, so that the cutter head 101 and screw are further
It tightens together, consequently facilitating screw is installed, after installing end screw, the magnet ring 20 is in 30 own resilient of elastic component
It is mobile towards the cutter head 101 under effect, and stop at the position of cutter head 101, convenient for installing screw next time.This reality
Apply in example, the end face of the cutter head 101 protrudes from the end face of the magnet ring 20, convenient for the cutter head 101 it is preliminary to screw into
Row positioning reduces the difficulty that staff installs screw.
Further, the screwdriver bit bar 10 is equipped with positive stop lug boss 102, and the elastic component 30 deviates from the one of the magnet ring 20
End connects the positive stop lug boss 102.In the embodiment of the present invention, the screwdriver bit bar 10, which is equipped with, limits 30 position of elastic component
Positive stop lug boss 102, the elastic component 30 are connected away from one end of the magnet ring 20 with the positive stop lug boss 102, and structure is simple, even
It connects conveniently, it is easy to accomplish, it is matched convenient for the elastic component 30 with the screwdriver bit bar 10.In the present embodiment, the elastic component 30
For spring.It has the advantages of simple structure and easy realization, cooperates convenient for the elastic component 30 and magnet ring 20 and the screwdriver bit bar 10 installation.It can be with
Understand, the elastic component 30 can also be installed directly on the screwdriver bit bar 10 far from one end of the cutter head 101.
Further, the positioning region for orientation is additionally provided between the magnet ring 20 and the screwdriver bit bar 10.The positioning
It is convenient for the magnet ring 20 and the cutter head for limiting the magnet ring 20 along the direction that the screwdriver bit bar 10 moves and distance in portion
Cooperation between 101 and screw.In the embodiment of the present invention, the positioning region includes location hole and locating piece, the location hole
For long hole 103, the length direction of the long hole 103 is axial parallel with the screwdriver bit bar 10, and described locating piece one end is installed in
On the magnet ring 20, the other end is extended in the long hole 103, and in the magnet ring 20 along the axial movement of the screwdriver bit bar 10
When, it is moved in the long hole 103.The locating piece is arranged on the magnet ring 20, by being arranged on the screwdriver bit bar 10
The long hole 103, the length direction of the long hole 103 is axial consistent with the screwdriver bit bar 10, and the locating piece is in the length
The extending direction in hole 103 is mobile, so that it is guaranteed that axial movement of the magnet ring 20 along the screwdriver bit bar 10, and the magnet ring 20 moves
Dynamic distance is the length of the long hole 103.In the present embodiment, the elastic component 30 is in when not stressing under state, the bullet
Property part 30 is located at the long hole 103 close to one end of the screwdriver bit, at this point, the end of the screwdriver bit protrudes from the magnet ring 20
End matches convenient for the screwdriver bit with screw.It is understood that the long hole 103 also can be set in the magnetic
On the inner surface of ring 20, the screwdriver bit bar 10 is equipped with flexible positioning piece compatible with the long hole 103.It is understood that
It is that the locating slot being oppositely arranged can be equipped in the circumferential direction of the screwdriver bit bar 10, the magnet ring 20 is equipped with and the locating slot
Compatible positioning.In the present embodiment, the screwdriver bit bar 10 is equipped with long hole 103, and the magnet ring 20 is equipped with locating piece, described fixed
Position part matches to limit the moving direction and moving distance of the magnet ring 20 with the long hole 103, and structure is simple, is easy to add
Work and realization match convenient for the screwdriver bit with screw.
Further, the locating piece is locating rod 202, and the circumferential direction of the magnet ring 20 is equipped with and the locating rod 202
Compatible through-hole 201, the locating rod 202 are installed at the through-hole 201 through the long hole 103.The locating rod 202
It is matched through the long hole 103 with the through-hole 201 on the magnet ring 20, so that the magnet ring 20 is in the elastic component 30 and outside
It can be moved on the length direction of the long hole 103 under the action of power.It is understood that locating piece may be that elasticity is convex
Platform, the elasticity boss are adapted with the long hole 103, and when magnet ring 20 is matched with the screwdriver bit bar 10, the elasticity is convex
Platform first forced compression under the effect of external force, when elastic boss is moved at the long hole 103, the elasticity boss is at itself
Restore prototype under elastic force, to match with the long hole 103, and then realizes the magnet ring 20 along the length of the long hole 103
Direction is mobile.In the present embodiment, the locating piece be locating rod 202, the locating rod 202 through the long hole 103 with it is described
Magnet ring 20 matches, meanwhile, the diameter of the locating rod 202 is adapted with the width of the long hole 103.The long hole
103 interior smooth, the length direction convenient for the locating rod 202 along the long hole 103 move, and avoid the shifting of the magnet ring 20
Dynamic direction shifts, consequently facilitating the cutter head 101 is matched with screw, and then installs screw convenient for the screwdriver bit,
There is a possibility that screw is fallen in reduction, and reduces the difficulty that staff installs screw.
Further, the circumferential direction of the screwdriver bit bar 10 is equipped with annular groove 104, and the annular groove 104 is located remotely from
The side of the cutter head 101, the annular groove 104 by electric screw driver for being locked.In the embodiment of the present invention, the screw
Screwdriver bit is matched with electric screw driver, and the screwdriver bit bar 10 is equipped with annular groove 104 far from one end of the cutter head 101, described
Annular groove 104 is matched with electric screw driver, and the screwdriver bit bar 10 is avoided to be detached from electric screw driver, while the screwdriver bit bar 10
On be additionally provided with convex block, the convex block is matched with electric screw driver, drives the screwdriver bit by the convex block by electric screw driver
Bar 10 rotates, and structure is simple, and easy to process and realization installs screw by the screwdriver bit convenient for staff.
The above description is only a preferred embodiment of the present invention, is not intended to limit the scope of the invention, all at this
Under the design of invention, using equivalent structure transformation made by description of the invention and accompanying drawing content, or directly/it is used in it indirectly
He is included in scope of patent protection of the invention relevant technical field.
Claims (10)
1. a kind of screwdriver bit, which is characterized in that the screwdriver bit includes:
Wherein one end of screwdriver bit bar, the screwdriver bit bar is equipped with cutter head compatible with screw;
Magnet ring, the magnet ring are installed on the cutter head, and the magnet ring is used to adsorb the screw on the cutter head;
Elastic component, the elastic component are installed on the screwdriver bit bar, and one end of the elastic component is connected with the magnet ring, so that institute
The axis that magnet ring is stated along the screwdriver bit bar moves up.
2. screwdriver bit as described in claim 1, which is characterized in that the elastic component connects the magnetic under the state of not stressing
One end of ring is greater than the length of the magnet ring at a distance from the end face of the cutter head.
3. screwdriver bit as described in claim 1, which is characterized in that the screwdriver bit bar is equipped with positive stop lug boss, the elasticity
Part connects the positive stop lug boss away from one end of the magnet ring.
4. screwdriver bit as claimed in claim 3, which is characterized in that be additionally provided with and be used between the magnet ring and the screwdriver bit bar
The positioning region of orientation.
5. screwdriver bit as claimed in claim 4, which is characterized in that the positioning region includes location hole and locating piece, institute
Stating location hole is long hole, and the length direction of the long hole is axial parallel with the screwdriver bit bar, and described locating piece one end is installed in
On the magnet ring, the other end is extended in the long hole, and in axial movement of the magnet ring along the screwdriver bit bar, described
It is moved in long hole.
6. screwdriver bit as claimed in claim 5, which is characterized in that the locating piece is locating rod, the circumferential direction of the magnet ring
It is equipped with through-hole compatible with the locating rod, the locating rod is installed in the through hole through the long hole.
7. screwdriver bit as claimed in claim 6, which is characterized in that the width phase of the diameter of the locating rod and the long hole
Adaptation.
8. such as the described in any item screwdriver bits of claim 1-7, which is characterized in that the elastic component is spring.
9. screwdriver bit as described in claim 1, which is characterized in that the cutter head includes manifold or crosshead or turret head
Or any one of wabbler.
10. screwdriver bit as described in claim 1, which is characterized in that the circumferential direction of the screwdriver bit bar is equipped with annular groove, institute
The side that annular groove is located remotely from the cutter head is stated, the annular groove by electric screw driver for being locked.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2018208722194 | 2018-06-06 | ||
CN201820872219 | 2018-06-06 |
Publications (1)
Publication Number | Publication Date |
---|---|
CN108927757A true CN108927757A (en) | 2018-12-04 |
Family
ID=64445671
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201810890342.3A Pending CN108927757A (en) | 2018-06-06 | 2018-08-07 | Screwdriver bit |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN108927757A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112548551A (en) * | 2020-12-02 | 2021-03-26 | 中国工程物理研究院机械制造工艺研究所 | Can absorb batch head of screw, gasket simultaneously |
Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2442697A1 (en) * | 1978-12-01 | 1980-06-27 | Dufourd Guy | Double purpose demountable bit for screwdriver - uses recoil sprung telescopic action giving access to bladed driving head or socket |
CN2314900Y (en) * | 1998-03-13 | 1999-04-21 | 李连友 | Screw driver |
US5927160A (en) * | 1998-02-27 | 1999-07-27 | Hsieh; Chih-Ching | Socket for socket wrench |
CN2410086Y (en) * | 2000-02-12 | 2000-12-13 | 施俊兆 | Magnetic attraction structure of hand tool capable of attracting element |
TWI280181B (en) * | 2005-08-19 | 2007-05-01 | Shiou-E Chen | Screw positioning bush |
CN201573156U (en) * | 2009-12-07 | 2010-09-08 | 奇瑞汽车股份有限公司 | Wrench auxiliary tool |
CN202462316U (en) * | 2010-12-22 | 2012-10-03 | 布莱克和戴克公司 | Nut coil |
CN103921246A (en) * | 2013-01-16 | 2014-07-16 | 瑞仪光电股份有限公司 | Screwdriver base and flexible screwdriver device thereof |
CN104249326A (en) * | 2013-06-28 | 2014-12-31 | 新乡市正和工业有限责任公司 | Tool for rapidly mounting steel wire thread insert |
CN204108925U (en) * | 2014-07-10 | 2015-01-21 | 杰贸工业股份有限公司 | Be provided with the head structure of screw positioning sleeve |
FR3039448B1 (en) * | 2015-07-31 | 2017-08-25 | Ateliers Lr Etanco | MAGNETIC SCREW SLEEVE. |
CN207223844U (en) * | 2017-08-08 | 2018-04-13 | 昆山义成工具有限公司 | Screwdriver head adsorbs screw device |
-
2018
- 2018-08-07 CN CN201810890342.3A patent/CN108927757A/en active Pending
Patent Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2442697A1 (en) * | 1978-12-01 | 1980-06-27 | Dufourd Guy | Double purpose demountable bit for screwdriver - uses recoil sprung telescopic action giving access to bladed driving head or socket |
US5927160A (en) * | 1998-02-27 | 1999-07-27 | Hsieh; Chih-Ching | Socket for socket wrench |
CN2314900Y (en) * | 1998-03-13 | 1999-04-21 | 李连友 | Screw driver |
CN2410086Y (en) * | 2000-02-12 | 2000-12-13 | 施俊兆 | Magnetic attraction structure of hand tool capable of attracting element |
TWI280181B (en) * | 2005-08-19 | 2007-05-01 | Shiou-E Chen | Screw positioning bush |
CN201573156U (en) * | 2009-12-07 | 2010-09-08 | 奇瑞汽车股份有限公司 | Wrench auxiliary tool |
CN202462316U (en) * | 2010-12-22 | 2012-10-03 | 布莱克和戴克公司 | Nut coil |
CN103921246A (en) * | 2013-01-16 | 2014-07-16 | 瑞仪光电股份有限公司 | Screwdriver base and flexible screwdriver device thereof |
CN104249326A (en) * | 2013-06-28 | 2014-12-31 | 新乡市正和工业有限责任公司 | Tool for rapidly mounting steel wire thread insert |
CN204108925U (en) * | 2014-07-10 | 2015-01-21 | 杰贸工业股份有限公司 | Be provided with the head structure of screw positioning sleeve |
FR3039448B1 (en) * | 2015-07-31 | 2017-08-25 | Ateliers Lr Etanco | MAGNETIC SCREW SLEEVE. |
CN207223844U (en) * | 2017-08-08 | 2018-04-13 | 昆山义成工具有限公司 | Screwdriver head adsorbs screw device |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112548551A (en) * | 2020-12-02 | 2021-03-26 | 中国工程物理研究院机械制造工艺研究所 | Can absorb batch head of screw, gasket simultaneously |
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PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
RJ01 | Rejection of invention patent application after publication | ||
RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181204 |