CN103341838B - A kind of screwdriver - Google Patents

A kind of screwdriver Download PDF

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Publication number
CN103341838B
CN103341838B CN201310272346.2A CN201310272346A CN103341838B CN 103341838 B CN103341838 B CN 103341838B CN 201310272346 A CN201310272346 A CN 201310272346A CN 103341838 B CN103341838 B CN 103341838B
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CN
China
Prior art keywords
cutter head
slide block
knife bar
installation portion
fixed part
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.)
Expired - Fee Related
Application number
CN201310272346.2A
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Chinese (zh)
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CN103341838A (en
Inventor
吴建国
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Boao Zongheng Network Technology Co ltd
Zhongshan Dapeng Hardware Manufacturing Co.,Ltd.
Original Assignee
JIANGSU GAOBO ZHIRONG TECHNOLOGY Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by JIANGSU GAOBO ZHIRONG TECHNOLOGY Co Ltd filed Critical JIANGSU GAOBO ZHIRONG TECHNOLOGY Co Ltd
Priority to CN201310272346.2A priority Critical patent/CN103341838B/en
Publication of CN103341838A publication Critical patent/CN103341838A/en
Application granted granted Critical
Publication of CN103341838B publication Critical patent/CN103341838B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The invention discloses a kind of screwdriver, comprise cutter head, knife bar and handle, cutter head comprises main part and installation portion, installation portion coordinates with knife bar end, and its cross section is polygon, and knife bar is arranged on handle end, the cross-sectional width of the main part of cutter head is less than the cross-sectional width of installation portion; Knife bar is pipe, comprises the channel part and fixed part that can mutually be rotatably connected, and during use, cutter head passes through from channel part inner chamber, and its installation portion is arranged on fixed part inside; Be distributed with in the inside of handle be interconnected and three passages of inner space with outside and knife bar; Also comprise three slide blocks matched with three passages respectively, slide block offers the appearance cutter groove placing cutter head, when this slide block is pushed three-aisled cross position time, the position holding cutter groove is corresponding with the position of knife bar inner chamber, and when being released by this slide block, the port of passage is stretched out in the end of slide block.The present invention is easy to carry, and cutter head is not easily lost, and bit replacing is convenient.

Description

A kind of screwdriver
Technical field
The present invention relates to hardware & tools technical field, especially a kind of screwdriver.
Background technology
Existing screwdriver is a kind of is that the most traditional cutter head cannot be changed, and workman often needs once to carry and many screwdriver just to be gone out work; One is that cutter head is dismountable, is filled with many cutter heads in an etui, easily loses although carry more convenient cutter head; Having a kind of be again handle is hollow, and the lid cutter head opened bottom handle is placed on inside handle, although cutter head is not easily lost, needs the cutter head all poured out by all cutter heads when changing cutter head, cumbersome.
Summary of the invention
The present invention is directed to the deficiencies in the prior art, propose a kind of screwdriver, easy to carry, cutter head is not easily lost, and bit replacing is convenient.
In order to realize foregoing invention object, the invention provides following technical scheme:
A kind of screwdriver, comprise cutter head, knife bar and handle, described cutter head comprises the main part and installation portion that link together, and described installation portion coordinates with described knife bar end, and its cross section is polygon, and described knife bar is arranged on described handle end, it is characterized in that,
The cross-sectional width of the main part of described cutter head is less than the cross-sectional width of described installation portion;
Described knife bar is pipe, comprises the channel part and fixed part that can mutually be rotatably connected, and during use, described cutter head passes through from described channel part inner chamber, its installation portion is arranged on described fixed part inner;
Be distributed with in the inside of described handle be interconnected and three passages of inner space with outside and knife bar;
Also comprise three slide blocks matched with described three passages respectively, described slide block offers the appearance cutter groove placing cutter head, when this slide block is pushed described three-aisled cross position time, the position of described appearance cutter groove is corresponding with the position of described knife bar inner chamber, and when being released by this slide block, the port of described passage is stretched out in the end of slide block.
Further, the free-end end face of described fixed part is provided with through hole, and during use, described main part stretches out from this through hole, and described installation portion is limited in described fixed part inside.
Further, the size of described fixed part inner chamber, shape are corresponding to described installation portion.
Further, described fixed part is threaded with described channel part,
When described fixed part and described channel part are fastened together, the sideline of described installation portion end face and the sideline of described channel part cavity end face staggered,
When the relatively described channel part of described fixed part rotates to an angle, described cutter head can pass through between these two parts.
Further, the port of described passage is provided with the limiting plate of extension elongation that stretch out to the inside, that limit described slide block.
Further, the end that described slide block is arranged on described channel interior is the face of cylinder,
When a described slide block is pushed into channel interior, its extreme position is limited by the end of slide block described in two other.
Further, the shape and size of described appearance cutter groove are corresponding with described cutter head.
Further, the top of described channel setting at described handle, the below of top board, when described slide block is pushed out, described top board covers a part for the notch holding cutter groove.
The present invention achieves easy to carry by its structural design, and cutter head is not easily lost, and bit replacing is feature easily.
Accompanying drawing explanation
Fig. 1 is the schematic front view of a kind of screwdriver of the present invention;
Fig. 2 is the schematic diagram that fixed part of the present invention is connected with described channel part;
Fig. 3 is the schematic cross-section of fixed part of the present invention and described channel part link position;
Fig. 4 is the schematic top plan view of a kind of screwdriver of the present invention;
Fig. 5 is the internal structure schematic diagram of upper handle portion of the present invention;
Fig. 6 be slide block of the present invention be pushed into handle inner time upper handle portion internal structure schematic diagram;
Fig. 7 is the schematic diagram of cutter head of the present invention;
Fig. 8 is cutter head of the present invention and the schematic diagram holding cutter slot fit.
Detailed description of the invention
Describe the present invention below in conjunction with accompanying drawing, the description of this part is only exemplary and explanatory, should not have any restriction to protection scope of the present invention.
A kind of screwdriver as shown in figures 1-8, comprises cutter head 1, knife bar 2 and handle 3, and cutter head 1 comprises the main part 11 and installation portion 12 that link together, installation portion 12 coordinates with knife bar 2 end, and its cross section is polygon, is generally regular hexagon or equilateral triangle, knife bar 2 is arranged on handle 3 end
The cross-sectional width of the main part 11 of cutter head 1 is less than the cross-sectional width of installation portion 12;
Knife bar 2 is pipe, comprises the channel part 21 and fixed part 22 that can mutually be rotatably connected, and during use, cutter head 1 passes through from channel part 21 inner chamber, its installation portion 12 is arranged on fixed part 22 inner;
Be distributed with in the inside of handle 3 be interconnected and three passages 31 of inner space with outside and knife bar 2;
The present invention also comprises three slide blocks 4 matched with three passages 31 respectively, slide block 4 offers the appearance cutter groove 41 placing cutter head 1, when this slide block 4 is pushed three passages 31 cross position time, the position holding cutter groove 41 is corresponding with the position of knife bar 2 inner chamber, and when being released by this slide block 4, the port of passage 31 is stretched out in the end of slide block 4.
The free-end end face of fixed part 22 is provided with through hole 221, and during use, main part 11 stretches out from this through hole 221, and installation portion 12 is limited in fixed part 22 inside.
Size, the shape of fixed part 22 inner chamber are corresponding to installation portion 12.
Fixed part 22 is threaded with channel part 21 by threaded portion 222,
When fixed part 22 and channel part 21 are fastened together, the sideline of installation portion 12 end face and the sideline of channel part 21 cavity end face staggered, channel part 21 cavity end surface shape and size also can be corresponding with installation portion 12,
When fixed part 22 opposing channel portion 21 rotates to an angle, cutter head 1 can pass through between these two parts.
The port of passage 31 is provided with the limiting plate 42 of extension elongation that stretch out to the inside, restriction slide block 4, limiting plate 42 can be and is arranged on passage 31 port both sides respectively and arc bending to the inside, the projecting end 43 of slide block 4 can be the face of cylinder, matches with the arcwall face inside limiting plate 42 in this face of cylinder.
The end 42 that slide block 4 is arranged on passage 31 inside is the face of cylinder,
When a slide block 4 is pushed into passage 31 inside, its extreme position is limited by the end of two other slide block 4.
The shape and size holding cutter groove 41 are corresponding with cutter head 1.
Passage 31 is arranged on the top of handle 3, the below of top board 32, and when slide block 4 is pushed out, 32, top board covers a part for the notch holding cutter groove 41, conveniently checks the shape of the main part 11 of cutter head 1.
During use, one in three slide blocks 4 is promoted to passage 31 inside, appearance cutter groove 41 is pushed into the position corresponding with channel part 21, make knife bar 2 downward screwdriver upset, slip in fixed part 22 from channel part 21 to the end, rotate fixed part 22 and cutter head 1 is fastened on fixed part 22 inside, screwdriver can use; During tool changing head, rotate fixed part 22 certain angle and cutter head is loosened and slips into from channel part 21 to hold cutter groove 41 inside, promote in two other slide block 4, the slide block 4 of original position in inside is extruded, realize changing cutter head 1 simultaneously.
The present invention achieves easy to carry by its structural design, and cutter head is not easily lost, and bit replacing is feature easily.

Claims (6)

1. a screwdriver, comprises cutter head, knife bar and handle, and described cutter head comprises the main part and installation portion that link together, described installation portion coordinates with described knife bar end, and its cross section is polygon, and described knife bar is arranged on described handle end, it is characterized in that
The cross-sectional width of the main part of described cutter head is less than the cross-sectional width of described installation portion;
Described knife bar is pipe, comprises the channel part and fixed part that can mutually be rotatably connected, and during use, described cutter head passes through from described channel part inner chamber, its installation portion is arranged on described fixed part inner;
Be distributed with in the inside of described handle be interconnected and three passages of inner space with outside and knife bar;
Also comprise three slide blocks matched with described three passages respectively, described slide block offers the appearance cutter groove placing cutter head, when this slide block is pushed described three-aisled cross position time, the position of described appearance cutter groove is corresponding with the position of described knife bar inner chamber, when being released by this slide block, the port of described passage is stretched out in the end of slide block
The free-end end face of described fixed part is provided with through hole, and during use, described main part stretches out from this through hole, and described installation portion is limited in described fixed part inside,
The port of described passage is provided with the limiting plate of extension elongation that stretch out to the inside, that limit described slide block.
2. a kind of screwdriver as claimed in claim 1, it is characterized in that, size, the shape of described fixed part inner chamber are corresponding to described installation portion.
3. a kind of screwdriver as claimed in claim 1 or 2, it is characterized in that, described fixed part is threaded with described channel part,
When described fixed part and described channel part are fastened together, the sideline of described installation portion end face and the sideline of described channel part cavity end face staggered,
When the relatively described channel part of described fixed part rotates to an angle, described cutter head can pass through between these two parts.
4. a kind of screwdriver as claimed in claim 1, it is characterized in that, the end that described slide block is arranged on described channel interior is the face of cylinder,
When a described slide block is pushed into channel interior, its extreme position is limited by the end of slide block described in two other.
5. a kind of screwdriver as claimed in claim 1, it is characterized in that, the shape and size of described appearance cutter groove are corresponding with described cutter head.
6. a kind of screwdriver as described in claim 1,4 or 5, is characterized in that, the top of described channel setting at described handle, the below of top board, and when described slide block is pushed out, described top board covers a part for the notch holding cutter groove.
CN201310272346.2A 2013-07-02 2013-07-02 A kind of screwdriver Expired - Fee Related CN103341838B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310272346.2A CN103341838B (en) 2013-07-02 2013-07-02 A kind of screwdriver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310272346.2A CN103341838B (en) 2013-07-02 2013-07-02 A kind of screwdriver

Publications (2)

Publication Number Publication Date
CN103341838A CN103341838A (en) 2013-10-09
CN103341838B true CN103341838B (en) 2015-08-19

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201310272346.2A Expired - Fee Related CN103341838B (en) 2013-07-02 2013-07-02 A kind of screwdriver

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Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5881615A (en) * 1997-01-15 1999-03-16 Enderes Tool Company, Inc. Multiple bit screwdrivers and methods
US6332384B1 (en) * 2001-02-09 2001-12-25 Gary Paul Cluthe Multiple bit screwdriver
US7185565B1 (en) * 2006-07-24 2007-03-06 Hu Cheng-Tsan Screwdriver having a ratchet mechanism
CN201389818Y (en) * 2009-02-12 2010-01-27 虞聪伦 Push-and-pull type multifunctional screwdriver
CN201405301Y (en) * 2009-04-03 2010-02-17 宁波德诚工具有限公司 Multifunctional screwdriver
CN203371453U (en) * 2013-07-02 2014-01-01 无锡天惠塑机有限公司 Screw driver

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