CN103600326B - Torsion-adjustable screwdriver - Google Patents
Torsion-adjustable screwdriver Download PDFInfo
- Publication number
- CN103600326B CN103600326B CN201310602617.6A CN201310602617A CN103600326B CN 103600326 B CN103600326 B CN 103600326B CN 201310602617 A CN201310602617 A CN 201310602617A CN 103600326 B CN103600326 B CN 103600326B
- Authority
- CN
- China
- Prior art keywords
- steel ball
- hand thread
- pressing plate
- block
- torsion
- 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
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 37
- 239000010959 steel Substances 0.000 claims abstract description 37
- 230000001105 regulatory effect Effects 0.000 claims description 32
- 230000006835 compression Effects 0.000 abstract 1
- 238000007906 compression Methods 0.000 abstract 1
- 230000002093 peripheral effect Effects 0.000 abstract 1
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 230000009466 transformation Effects 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
- 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
- B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
- B25B23/14—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers
- B25B23/142—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers specially adapted for hand operated wrenches or screwdrivers
- B25B23/1422—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers specially adapted for hand operated wrenches or screwdrivers torque indicators or adjustable torque limiters
- B25B23/1427—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers specially adapted for hand operated wrenches or screwdrivers torque indicators or adjustable torque limiters by mechanical means
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
The invention discloses a torsion-adjustable screwdriver which comprises a handle, a shell and a screwdriver rod. A steel ball pressing plate is disposed at the bottom of the shell. A support block is disposed above the steel ball pressing plate. The middle of the support block is fixedly welded to the screwdriver rod. The support block is provided with mounting holes along the peripheral direction. A steel ball, a spring and a guide column are sequentially mounted in the mounting holes from top to bottom. Shallow pits corresponding to the positions of the mounting holes are formed in the steel ball pressing plate. The bottom of the steel ball is located in one shallow pit. A top plate is disposed above the guide column. An adjusting tooth reverse fastener is disposed above the top plate. A plurality of positioning tooth clamping strips matched with the adjusting tooth reverse fastener are inserted into the side wall of the shell. A pressing block is disposed at the upper end of the adjusting tooth reverse fastener. The top of the pressing block extends out of the upper end face of a handle. The pressing block drives the adjusting tooth reverse fastener to move downwards. By the pre-compression between the steel ball and the steel ball pressing plate, required torsion is adjusted by adjusting up-down clamping manners, and fast and accurate adjusting can be achieved.
Description
Technical field
The present invention relates to a kind of Torsion-adjustable screwdriver, belong to machine tool technical field.
Background technology
As a kind of conventional hardware & tools, screwdriver brings great convenience to the live and work of people, saves labor cost, improves efficiency.Existing screwdriver is normally fixed, unadjustable outputting torsion, when needs are fastening, directly carry out turning with screwdriver fastening, if power is too many, often destroys screw thread, cause irreversible infringement, bring inconvenience to user.
Summary of the invention
(1) technical problem that will solve
The technical problem to be solved in the present invention is to provide a kind of Torsion-adjustable screwdriver, utilizes positioning tooth screens bar and regulating tooth left-hand thread can the torque value that needs of easy adjustment.
(2) technical scheme
For solving the problem, the present invention adopts following technical scheme:
A kind of Torsion-adjustable screwdriver, comprise handle, housing and screwdriver rod, described housing bottom is provided with steel ball pressing plate, back-up block is provided with above described steel ball pressing plate, be welded and fixed mutually with screwdriver rod in the middle part of described back-up block, described back-up block is along the circumferential direction provided with installing hole, described installing hole is provided with steel ball from bottom to up successively, spring and guide pillar, the position described steel ball pressing plate corresponding to described installing hole is provided with shallow hole, be located at bottom described steel ball in described shallow hole, top board is provided with above described guide pillar, regulating tooth left-hand thread is provided with above described top board, described housing sidewall is inserted with the positioning tooth screens bar that some and described regulating tooth left-hand thread matches, described regulating tooth left-hand thread upper end is provided with briquetting, described handle upper surface is stretched out at described briquetting top, described briquetting drives described regulating tooth left-hand thread to move downward, described screwdriver rod is successively through regulating tooth left-hand thread, top board, the middle part of back-up block and steel ball pressing plate, housing lower end is stretched out in end.
The positioning tooth that described positioning tooth screens bar comprises a cutting, is vertically located at gib block in cutting, is symmetrically set in gib block both sides, described regulating tooth left-hand thread comprises the base being positioned at top, the fixed strip be located on base edge, the left-hand thread be located on fixed strip, described left-hand thread is vertically provided with two rows, and the spacing between adjacent described two row's left-hand threads is greater than the width of gib block.
Described handle is connected by buckle structure with housing, and described handle is rotatable around housing, and be provided with groove bottom described briquetting, the base top of described regulating tooth left-hand thread is provided with the projection with described fit depressions.
Back-moving spring is equipped with in described briquetting.
(3) beneficial effect
The present invention is compared to prior art, has following beneficial effect: by the precompression between steel ball and steel ball pressing plate, and adopts the mode regulating upper and lower screens, the required torsion of adjustment, to reach fast object accurate again of regulating the speed.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is the cross section structure figure of Torsion-adjustable screwdriver of the present invention.
Fig. 2 is the housing interior structure figure of Torsion-adjustable screwdriver of the present invention.
Fig. 3 is the positioning tooth screens bar of Torsion-adjustable screwdriver of the present invention and the installation diagram of regulating tooth left-hand thread.
Fig. 4 is the structure chart of the regulating tooth left-hand thread of Torsion-adjustable screwdriver of the present invention.
Fig. 5 is the structure chart of the positioning tooth screens bar of Torsion-adjustable screwdriver of the present invention.
Detailed description of the invention
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in further detail.Following examples for illustration of the present invention, but are not used for limiting the scope of the invention.
As shown in Figures 1 to 5, a kind of Torsion-adjustable screwdriver, comprise handle 1, housing 2 and screwdriver rod 3, steel ball pressing plate 4 is provided with bottom described housing 2, back-up block 5 is provided with above described steel ball pressing plate 4, be welded and fixed mutually with screwdriver rod 3 in the middle part of described back-up block 5, described back-up block 5 is along the circumferential direction provided with installing hole, described installing hole is provided with steel ball 6 from bottom to up successively, spring 7 and guide pillar 8, the position described steel ball pressing plate 4 corresponding to described installing hole is provided with shallow hole 401, be located at bottom described steel ball 6 in described shallow hole 401, top board 9 is provided with above described guide pillar 8, regulating tooth left-hand thread 10 is provided with above described top board 9, described housing 2 sidewall is inserted with the positioning tooth screens bar 11 that some and described regulating tooth left-hand thread 10 matches, described regulating tooth left-hand thread 10 upper end is provided with briquetting 12, described handle 1 upper surface is stretched out at described briquetting 12 top, described briquetting 12 drives described regulating tooth left-hand thread 10 to move downward, described screwdriver rod 3 is successively through regulating tooth left-hand thread 10, top board 9, the middle part of back-up block 5 and steel ball pressing plate 4, housing 2 lower end is stretched out in end.
As shown in Figures 3 to 5, the positioning tooth 113 that described positioning tooth screens bar 11 comprises a cutting 111, is vertically located at gib block 112 in cutting 111, is symmetrically set in gib block 112 both sides, described regulating tooth left-hand thread 10 comprises the base 101 being positioned at top, the fixed strip 102 be located on base 101 edge, the left-hand thread 103 be located on fixed strip 102, described left-hand thread 103 is vertically provided with two rows, and the spacing between adjacent described two row's left-hand threads 103 is greater than the width of gib block 112.
Described handle 1 is connected by buckle structure 13 with housing 2, and described handle 1 is rotatable around housing 2, and be provided with groove bottom described briquetting 12, base 101 top of described regulating tooth left-hand thread 10 is provided with the projection 104 with described fit depressions.
Back-moving spring (not shown) is equipped with in described briquetting 12.
Operation principle of the present invention: owing to being welded and fixed mutually with screwdriver rod 3 in the middle part of back-up block 5, when screwdriver rod the turn of the screw, moment of torsion passes to back-up block by screwdriver rod, due to the steel ball in back-up block with between steel ball pressing plate, there is precompression, when this moment of torsion is no more than the slippage power of the shallow hole on steel ball slippage steel ball pressing plate, this screwdriver can turn screw; When this moment of torsion exceedes the slippage power of the shallow hole on steel ball slippage steel ball pressing plate, relatively rotate between back-up block and steel ball pressing plate, steel ball skids off shallow hole, after turning over certain angle, automatically enters the shallow hole that next is adjacent.
The principle of set screw cutter moment of torsion: have precompression due to the steel ball in back-up block with between steel ball pressing plate, described briquetting can drive described regulating tooth left-hand thread to move downward, and often moves downward one-level, and moment of torsion increases one-level.
The principle that screwdriver moment of torsion restPoses: when described regulating tooth left-hand thread is pressed into bottom downwards by described briquetting, turning handle, handle drives briquetting to rotate, briquetting drives regulating tooth left-hand thread to rotate, when the fixed strip of regulating tooth left-hand thread turns between the cutting of two adjacent positioning tooth screens bars, due to the active force of spring, regulating tooth left-hand thread can be made to reset, then rotate regulating tooth left-hand thread certain angle and press one-level downwards and can normally work.
Certainly, above is only embody rule example of the present invention, does not constitute any limitation protection scope of the present invention.In addition to the implementation, the present invention can also have other embodiment.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop within the present invention's scope required for protection.
Claims (3)
1. a Torsion-adjustable screwdriver, it is characterized in that, comprise handle, housing and screwdriver rod, described housing bottom is provided with steel ball pressing plate, back-up block is provided with above described steel ball pressing plate, be welded and fixed mutually with screwdriver rod in the middle part of described back-up block, described back-up block is along the circumferential direction provided with installing hole, described installing hole is provided with steel ball from bottom to up successively, spring and guide pillar, the position described steel ball pressing plate corresponding to described installing hole is provided with shallow hole, be located at bottom described steel ball in described shallow hole, top board is provided with above described guide pillar, regulating tooth left-hand thread is provided with above described top board, described housing sidewall is inserted with the positioning tooth screens bar that some and described regulating tooth left-hand thread matches, described regulating tooth left-hand thread upper end is provided with briquetting, described handle upper surface is stretched out at described briquetting top, described briquetting drives described regulating tooth left-hand thread to move downward, described screwdriver rod is successively through regulating tooth left-hand thread, top board, the middle part of back-up block and steel ball pressing plate, housing lower end is stretched out in end,
The positioning tooth that described positioning tooth screens bar comprises a cutting, is vertically located at gib block in cutting, is symmetrically set in gib block both sides, described regulating tooth left-hand thread comprises the base being positioned at top, the fixed strip be located on base edge, the left-hand thread be located on fixed strip, described left-hand thread is vertically provided with two rows, and the spacing between adjacent described two row's left-hand threads is greater than the width of gib block.
2. Torsion-adjustable screwdriver according to claim 1, it is characterized in that, described handle is connected by buckle structure with housing, and described handle is rotatable around housing, be provided with groove bottom described briquetting, the base top of described regulating tooth left-hand thread is provided with the projection with described fit depressions.
3. Torsion-adjustable screwdriver according to claim 2, is characterized in that, is equipped with back-moving spring in described briquetting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310602617.6A CN103600326B (en) | 2013-11-23 | 2013-11-23 | Torsion-adjustable screwdriver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310602617.6A CN103600326B (en) | 2013-11-23 | 2013-11-23 | Torsion-adjustable screwdriver |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103600326A CN103600326A (en) | 2014-02-26 |
| CN103600326B true CN103600326B (en) | 2015-06-17 |
Family
ID=50118622
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310602617.6A Active CN103600326B (en) | 2013-11-23 | 2013-11-23 | Torsion-adjustable screwdriver |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103600326B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105196527A (en) * | 2015-09-24 | 2015-12-30 | 苏州富通高新材料科技股份有限公司 | Embossing device for panel processing |
| CN105773505A (en) * | 2016-04-27 | 2016-07-20 | 厦门南旗佰特精密工具制造有限公司 | Screwdriver torsion adjusting device |
| CN105710817A (en) * | 2016-04-27 | 2016-06-29 | 厦门南旗佰特精密工具制造有限公司 | Precise electric screwdriver |
| CN105922183B (en) * | 2016-06-14 | 2018-01-12 | 广西玉柴机器股份有限公司 | The adjusting apparatus of valve clearance |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2507167A (en) * | 1946-12-20 | 1950-05-09 | Lemmerman Donald Richard | Rotary impact type turning tool |
| US6095020A (en) * | 1999-01-11 | 2000-08-01 | Beere Precision Medical Instruments, Inc. | Hand tool having a variable torque-limiting in-line drive |
| US6487943B1 (en) * | 1999-10-11 | 2002-12-03 | Kapman Ab | Torque limiting screwdriver |
| CN101301741A (en) * | 2008-06-27 | 2008-11-12 | 上海昆杰五金工具有限公司 | Screw driver with adjustable torque |
| CN101337344A (en) * | 2007-07-05 | 2009-01-07 | 陈章英 | Torsion screwdriver structure |
| CN103231341A (en) * | 2013-05-13 | 2013-08-07 | 湖南大学 | Hand-pressed self-rotation type screwdriver |
-
2013
- 2013-11-23 CN CN201310602617.6A patent/CN103600326B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2507167A (en) * | 1946-12-20 | 1950-05-09 | Lemmerman Donald Richard | Rotary impact type turning tool |
| US6095020A (en) * | 1999-01-11 | 2000-08-01 | Beere Precision Medical Instruments, Inc. | Hand tool having a variable torque-limiting in-line drive |
| US6487943B1 (en) * | 1999-10-11 | 2002-12-03 | Kapman Ab | Torque limiting screwdriver |
| CN101337344A (en) * | 2007-07-05 | 2009-01-07 | 陈章英 | Torsion screwdriver structure |
| CN101301741A (en) * | 2008-06-27 | 2008-11-12 | 上海昆杰五金工具有限公司 | Screw driver with adjustable torque |
| CN103231341A (en) * | 2013-05-13 | 2013-08-07 | 湖南大学 | Hand-pressed self-rotation type screwdriver |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103600326A (en) | 2014-02-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Yang Gaolin Inventor before: Yu Jingli |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170811 Address after: 266101 Shandong Province, Qingdao city Laoshan District, Keyuan Road No. 1 23 storey block B room 2319 Patentee after: Qingdao fruit science and technology service platform Co.,Ltd. Address before: The mountain village of new town in Xiangshan County of Zhejiang Province, Ningbo City, No. 273, 315725 Patentee before: Yu Jingli |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20171024 Address after: 401120, 5-, Yubei District, Chongqing, 1 Dragon Street 498 Patentee after: Chongqing Kaituo Technology Development Co.,Ltd. Address before: 266101 Shandong Province, Qingdao city Laoshan District, Keyuan Road No. 1 23 storey block B room 2319 Patentee before: Qingdao fruit science and technology service platform Co.,Ltd. |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201218 Address after: 321 provincial road, Jinlong Village, Zhongming Town, Yi'an District, Tongling City, Anhui Province Patentee after: Tongling Xinlong Steel Structure Co.,Ltd. Address before: 401120 Yubei District, Chongqing, Longxi street, Hong Jin Avenue 498, Jiale, Violet 1, 5- business. Patentee before: CHONGQING KAITUO TECHNOLOGY DEVELOPMENT Co.,Ltd. |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230629 Address after: 528300 No.2 Industrial Avenue, Xiashi Village Committee, Lunjiao, Foshan City, Guangdong Province (Residence Application) Patentee after: Foshan Shenghui Machinery Equipment Co.,Ltd. Address before: 321 provincial road, Jinlong Village, Zhongming Town, Yi'an District, Tongling City, Anhui Province Patentee before: Tongling Xinlong Steel Structure Co.,Ltd. |