CN104999402A - Adjustable self-locking ratchet lever - Google Patents
Adjustable self-locking ratchet lever Download PDFInfo
- Publication number
- CN104999402A CN104999402A CN201510477486.2A CN201510477486A CN104999402A CN 104999402 A CN104999402 A CN 104999402A CN 201510477486 A CN201510477486 A CN 201510477486A CN 104999402 A CN104999402 A CN 104999402A
- Authority
- CN
- China
- Prior art keywords
- spring
- spanner
- lever
- hook
- inner sleeve
- 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
- B25B13/00—Spanners; Wrenches
- B25B13/46—Spanners; Wrenches of the ratchet type, for providing a free return stroke of 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
Abstract
The invention discloses an adjustable self-locking ratchet lever, which comprises a lever rod and a lever head arranged at the tail end, wherein the lever head has a semi arc-shaped structure; a lever hook is rotatablely fixed below the arc-shaped tail end via a rivet; the inner side of the lever hook is provided with a semicircular structure in multi-edge connection; the outer side of the lever hook is provided with a circular arc-shaped structure; a reset mechanism is contacted with and arranged at the outer side of the lever hook, and the reset mechanism comprises a spring outer sleeve fixed on the lever rod, a spring inner sleeve embedded in the spring outer sleeve, and a spring is arranged in the spring outer sleeve and the spring inner sleeve, the tail end of the spring inner sleeve is fixed with a spherical head, and the spherical head and the circular arc shape of the outer side of the lever hook are movably contacted. The adjustable self-locking ratchet lever provided by the invention can be used for a fastener in a different model specification range in a large range, adjustment and locking are automatic, manual adjustment is not needed, efficacy of the ratchet lever is provided, reverse idle rotation and then forward rotation for applying a force are provided, and the structure is simple, practical, convenient and quick.
Description
Technical field
The invention belongs to hardware & tools field, relate to a kind of adjustable spanner, be specially a kind of adjustable self-locking class ratchet spanner.
Background technology
Spanner is a kind of conventional installation and removal instrument.Utilize lever principle to twist bolt, screw, nut and other screw threads and tightly hold the opening of bolt or nut or the hand tools of trepanning firmware.Spanner is usually shaped with clamp holder portion and applies external force shank and apply external force in the one or both ends of shank, just can twist opening or trepanning that bolt or nut hold bolt or nut.During use, threadingly direction of rotation applies external force at shank, just can twist bolt or nut.
Existing spanner is divided into fixed and movable two kinds, and fixed spanner for fixing nominal diameter effect, and can not can only rotate backward in the process used, and adjusts spanner rotational angle and again snap in after needing the securing member of effect of exiting; So, need the spanner being equipped with multiple different model, and use also inconvenient.
Movable spanner is divided into two kinds: a kind of is that spanner tooth is adjustable, and it can adapt to the securing member of different model within the specific limits; Another kind is that rotation direction can be adjusted, and it is in the process of work, and rotate forward after can oppositely dallying firmly, it is represented as ratchet spanner again; But this ratchet spanner is all fixing model size, its structure is complete lasso form; Have no idea at present to use several for the effect of two kinds of monkey wrenches in a spanner.There is many places to be modified in prior art about spanner.
By patent retrieval, there is following known prior art:
Patent 1: application number CN200910157436.0, applying date 2009.07.29, open (bulletin) day 2011.03.16, discloses a kind of monkey wrench, comprising: a shank; One head; One fixed jaw; One movable jaw and a snail nurse; This movable jaw has a tooth row, tooth row is placed in a chute slippingly, this snail nurse then comprises an axle portion and general cylindrical engaging piece, this axle portion is arranged at the axle center place of engaging piece, an inclination angle is formed between axle portion and chute surface, this snail nurse generally linearly can be arranged in storage tank slippingly along engaging piece radial direction, and engaging piece optionally becomes meshing relation with tooth row.Wherein, engaging piece has into screw-shaped engaging tooth, this engaging tooth has a front bevel and a back bevel, and this front bevel is supported for teeth portion first surface when this monkey wrench work switching, and this back bevel supplies teeth portion second pushing and pressing in movable jaw away from during the slippage of fixed jaw direction; Wherein the angle of front bevel and an imaginary line is a front bevel angle, and this imaginary line refers to the dummy line of vertical axis portion bearing of trend, and inclination angle is more than or equal to this front bevel angle.Its design meets ergonomics and more smoothly.
It is the first type of activity spanner previously described herein, it rotates forward effect of ratchet spanner firmly again after cannot realizing oppositely idle running, and need hand-turning nut to adjust size when adjusting the securing member of different locking different model, it is not very convenient to use.
Patent 2: application number CN201110112437.0, applying date 2011.05.03, open (bulletin) day 2012.11.07, discloses a kind of ratchet spanner, includes a body, a ratchet member, a tumbler, a brake tooth block and a push button, this ratchet member and tumbler are placed in body, this brake tooth block is positioned between ratchet member and tumbler, this push button then can interlock brake tooth block, push button is made to be subject to an External Force Acting, and be carried out at the linear reciprocation slippage between the first switching position to the second switching position along the central axis of this body parallel, when push button is positioned at the first switching position, interlock brake tooth block is contacted with the side of ratchet member, and ratchet member only can be rotated along a direction, when push button is positioned at the second switching position, interlock brake tooth block is contacted with the opposite side of ratchet member, and ratchet member only can be rotated along other direction, design with the push button pushed away by axial direct, and better instinct type operation ease can be provided.
Patent 3: application number CN201010535134.5, applying date 2010.11.03, open (bulletin) day 2011.10.05, discloses a kind of ratchet spanner, has ratchet structure, Ratchet body, sleeve wheel, multiple hook tooth and at least one ratchet.Ratchet body is received in ratchet structure and also can rotates around the first axle.Comprise around the second axle that is crossing with the first axle but that do not overlap with the first axle circumferentially spaced multiple tool component each other in the hole that sleeve wheel is received in Ratchet body.Hook tooth and at least one click-fit are to control the relatively rotating of spaced winding first axle at ratchet structure and Ratchet body.
Patent 2, patent 3 belong to the monkey wrench of previously described the second type, its securing member that cannot adapt to different specifications and models on a large scale uses, rotate forward again firmly after oppositely idle running can only be provided, and ratchet spanner can not bear larger power, has certain limitation.
Found by above retrieval, above technical scheme can not affect novelty of the present invention; And the mutual combination of above patent document can not destroy creativeness of the present invention.
Summary of the invention
The object of the invention is for above problem, a kind of adjustable self-locking class ratchet spanner is provided, can use by the securing member in a big way in endoadaptation different model specification limit, automatic adjustment locking, without the need to artificial adjustment, the effect simultaneously possessing ratchet spanner rotates forward firmly after providing and oppositely dallying again, simple and practical convenient.
For realizing above object, the technical solution used in the present invention is: a kind of adjustable self-locking class ratchet spanner, it comprises the driving end (9) of wrenching bar (8) and the setting of its end, described driving end (9) is half arcuate structure, be fixed with spanner hook (5) rotationally by rivet (6) below its arcuate end, the inner side of spanner hook (5) is set to polygon half coil structures connected; The arranged outside of spanner hook (5) is arc-shaped structure; Contact with the outside of spanner hook (5) and be provided with resetting-mechanism, it comprises the spring overcoat (2) be fixed on wrenching bar (8), be embedded in the spring inner sleeve (3) in spring overcoat (2), and the spring (1) be arranged among spring overcoat (2) and spring inner sleeve (3), and be fixed with ballhead (10) at the end of spring inner sleeve (3), the outer arc shape movable contact of described ballhead (10) and spanner hook (5).
Further, on described wrenching bar (8), also cover has taper knob (7), and its outer surface arranges some anti-slop serrations for anti-skidding effect (701).
Further, the spring overcoat (2) of described resetting-mechanism is fixed in described taper knob (7).
Further, the circular arc end of the driving end (5) of described wrenching bar (8) is provided with spring limit for length card (4) for blocking ballhead (10).
Further, the end face that described spring limit for length card (4) contacts with ballhead (10) is provided with anti-slip tank (401).
Further, tooth-shape structure is provided with outside the circular arc of described driving end (9).
Further, the two ends of described wrenching bar (8) are provided with driving end (9) and spanner hook (5).
Further, described spring overcoat (2) and spring inner sleeve (3) are parallel to wrenching bar (8), and spring overcoat (2) two ends are all overlapped and are had spring inner sleeve (3), and the spring inner sleeve (3) at two ends is all provided with ballhead (10).
Beneficial effect of the present invention: a kind of adjustable self-locking class of the present invention ratchet spanner, can use by the securing member in a big way in endoadaptation different model specification limit, automatic adjustment locking, without the need to artificial adjustment, the effect simultaneously possessing ratchet spanner rotates forward firmly after providing and oppositely dallying again, simple and practical convenient.
1, adjustment and the securing member adapting to different model in a big way, be applicable to multiple use occasion, solve carrying and changing troublesome problem of single model spanner.
2, automatically adjust locking in use, without the need to artificial adjustment, without the need to manual rotation's runner, save regulation time, and self-adaptative adjustment is more accurate, without the need to repeatedly adjusting, does not limit by runner pitch.
3, there is effect of ratchet spanner simultaneously: rotate forward again after namely oppositely idle running is provided firmly, without the need to exit effect securing member after adjust spanner rotational angle and again snap in, save the fastening time and more can adapt to the narrow and small place of the restriction of securing member locus, and larger power can be born, compensate for the defect of ratchet spanner.
4, the present invention adopts resetting structure, controls the scope of activities that spanner hooks, and solves spanner in prior art and hooks uncontrolled, the problem of easily rocking.
5, structure of the present invention is simple, and low cost is easy to operate, practical.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of the present invention.
Fig. 2 is that in Fig. 1, spring limit for length blocks an a kind of structure left side and looks schematic diagram.
Fig. 3 is resetting-mechanism structural representation in Fig. 1.
Fig. 4 is the second structural representation of the present invention.
Fig. 5 is resetting-mechanism structural representation in Fig. 4.
Described in figure, label character is expressed as: 1, spring; 2, spring overcoat; 3, spring inner sleeve; 4, spring limit for length card; 5, spanner hooks; 6, rivet; 7, taper knob; 8, wrenching bar; 9, driving end; 10, ballhead;
501, large spanner hooks; 701, anti-slop serrations; 901, spanner tooth.
Detailed description of the invention
In order to make those skilled in the art understand technical scheme of the present invention better, 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.
As Figure 1-3, concrete structure of the present invention is: a kind of adjustable self-locking class ratchet spanner, it comprises the driving end 9 of wrenching bar 8 and the setting of its end, described driving end 9 is half arcuate structure, be fixed with spanner hook 5 rotationally by rivet 6 below its arcuate end, the inner side of spanner hook 5 is set to polygon half coil structures connected; The arranged outside of spanner hook 5 is arc-shaped structure; Contact with the outside of spanner hook 5 and be provided with resetting-mechanism, it comprises the spring overcoat 2 be fixed on wrenching bar 8, be embedded in the spring inner sleeve 3 in spring overcoat 2, and the spring 1 be arranged among spring overcoat 2 and spring inner sleeve 3, and be fixed with ballhead 10 at the end of spring inner sleeve 3, the outer arc shape movable contact of described ballhead 10 and spanner hook 5.
Preferably, on described wrenching bar 8, also cover has taper knob 7, and its outer surface arranges some anti-slop serrations 701 for anti-skidding effect.
Preferably, the spring overcoat 2 of described resetting-mechanism is fixed in described taper knob 7.
Preferably, the spring limit for length that the circular arc end of the driving end 5 of described wrenching bar 8 is provided with for blocking ballhead 10 blocks 4.
As shown in Figure 2, preferably, described spring limit for length blocks 4 end faces contacted with ballhead 10 and is provided with anti-slip tank 401.
Preferably, tooth-shape structure is provided with outside the circular arc of described driving end 9.Tooth mechanism can clamp securing member more effectively.
As shown in Figure 4, the second structure of the present invention, the two ends of described wrenching bar 8 are provided with driving end 9 and spanner hook 5.And in the preferred case, the spanner hook 5 arranged at the two ends of wrenching bar 8, what have one end to arrange is larger than the other end, is large spanner and hooks 901; The needs that can adapt to different model and force are so set.Large end is stressed wants large, and adapt to the adjustment of larger securing member, small end is stressed little, adapts to the adjustment of less securing member.
Preferably, described spring overcoat 2 and spring inner sleeve 3 are parallel to wrenching bar 8, and spring overcoat 2 two ends are all overlapped and had spring inner sleeve 3, and the spring inner sleeve 3 at two ends is all provided with ballhead 10.
During concrete use: the taper knob 7 holding spanner, stir the spanner hook 5 of spanner, make to block securing member that is to be tightened or that unclamp inside it, under the effect of spring 1, ballhead 10 withstands the outer arc shape of spanner hook 5, limits after it continues and turns, realize self-locking; Take up firmware rotating spanner bar 8, realize direction force; Because spanner hook 5 is movable spacing, after rotating a direction, the certain angle that can dally in the other direction carries out forward force again, so, namely reaches the effect of ratchet.
The operation principle of the single-side structural shown in Fig. 1 and the bilateral structure shown in Fig. 4 is basically identical, is two kinds of different embodiments.
It should be noted that, in this article, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thus make to comprise the process of a series of key element, method, article or equipment and not only comprise which key element, but also comprise other key elements clearly do not listed, or also comprise by the intrinsic key element of this process, method, article or equipment.
Apply specific case herein to set forth principle of the present invention and embodiment, the explanation of above example just understands method of the present invention and core concept thereof for helping.The above is only the preferred embodiment of the present invention, should be understood that, due to the finiteness of literal expression, and objectively there is unlimited concrete structure, for those skilled in the art, under the premise without departing from the principles of the invention, some improvement, retouching or change can also be made, also above-mentioned technical characteristic can be combined by rights; These improve retouching, change or combination, or the design of invention and technical scheme are directly applied to other occasion without improving, and all should be considered as protection scope of the present invention.
Claims (8)
1. an adjustable self-locking class ratchet spanner, it comprises the driving end (9) of wrenching bar (8) and the setting of its end, it is characterized in that, described driving end (9) is half arcuate structure, be fixed with spanner hook (5) rotationally by rivet (6) below its arcuate end, the inner side of spanner hook (5) is set to polygon half coil structures connected; The arranged outside of spanner hook (5) is arc-shaped structure; Contact with the outside of spanner hook (5) and be provided with resetting-mechanism, it comprises the spring overcoat (2) be fixed on wrenching bar (8), be embedded in the spring inner sleeve (3) in spring overcoat (2), and the spring (1) be arranged among spring overcoat (2) and spring inner sleeve (3), and be fixed with ballhead (10) at the end of spring inner sleeve (3), the outer arc shape movable contact of described ballhead (10) and spanner hook (5).
2. a kind of adjustable self-locking class ratchet spanner according to claim 1, is characterized in that, on described wrenching bar (8), also cover has taper knob (7), and its outer surface arranges some anti-slop serrations for anti-skidding effect (701).
3. a kind of adjustable self-locking class ratchet spanner according to claim 2, is characterized in that, the spring overcoat (2) of described resetting-mechanism is fixed in described taper knob (7).
4. a kind of adjustable self-locking class ratchet spanner according to claim 1, it is characterized in that, the circular arc end of the driving end (5) of described wrenching bar (8) is provided with spring limit for length card (4) for blocking ballhead (10).
5. a kind of adjustable self-locking class ratchet spanner according to claim 4, is characterized in that, the end face that described spring limit for length card (4) contacts with ballhead (10) is provided with anti-slip tank (401).
6. a kind of adjustable self-locking class ratchet spanner according to claim 1, is characterized in that, be provided with tooth-shape structure outside the circular arc of described driving end (9).
7. a kind of adjustable self-locking class ratchet spanner according to any one of claim 1-6, is characterized in that, the two ends of described wrenching bar (8) are provided with driving end (9) and spanner hook (5).
8. a kind of adjustable self-locking class ratchet spanner according to claim 7, is characterized in that,
Described spring overcoat (2) and spring inner sleeve (3) are parallel to wrenching bar (8), and spring overcoat (2) two ends are all overlapped and are had spring inner sleeve (3), and the spring inner sleeve (3) at two ends is all provided with ballhead (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510477486.2A CN104999402A (en) | 2015-05-02 | 2015-08-06 | Adjustable self-locking ratchet lever |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520284606 | 2015-05-02 | ||
| CN201510477486.2A CN104999402A (en) | 2015-05-02 | 2015-08-06 | Adjustable self-locking ratchet lever |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104999402A true CN104999402A (en) | 2015-10-28 |
Family
ID=54372396
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510477486.2A Pending CN104999402A (en) | 2015-05-02 | 2015-08-06 | Adjustable self-locking ratchet lever |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104999402A (en) |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1068771A (en) * | 1912-08-03 | 1913-07-29 | Thomas Holmes | Wrench. |
| US3290970A (en) * | 1965-06-18 | 1966-12-13 | Lucia Santo De | Sliding jaw wrench having claw handle jaw adjustment means |
| US4276790A (en) * | 1979-05-16 | 1981-07-07 | Davis Brian L | Open-ended wrench having ratcheting action |
| GB2166992A (en) * | 1984-11-15 | 1986-05-21 | Lacrex Brevetti Sa | Universal wrench |
| CN87215074U (en) * | 1987-11-09 | 1988-08-10 | 田芸 | Self-adjustable ratchet wrench for use as a hand hammer |
| CN2053971U (en) * | 1989-05-23 | 1990-03-07 | 李祖华 | Universal spanner |
| CN2071567U (en) * | 1990-06-02 | 1991-02-20 | 周翔 | Self-locking spanner |
| CN2142057Y (en) * | 1992-09-29 | 1993-09-15 | 张彦才 | Universal self-gripping spanners |
| US5771761A (en) * | 1996-04-16 | 1998-06-30 | Binkowski; Kazimierz M. | Spring pivoted, ratcheting lever wrench |
| CN2454087Y (en) * | 2000-06-22 | 2001-10-17 | 李育谕 | Optimized pipe-wrench self-adjusting adjustable ratchet screwing-up spanner |
| US6799492B2 (en) * | 2002-11-27 | 2004-10-05 | Matthew Pearson | Ratchet wrench |
| CN201055980Y (en) * | 2007-07-04 | 2008-05-07 | 孟庆志 | Quick operation pipe vice |
| CN204819291U (en) * | 2015-08-06 | 2015-12-02 | 邵东和谐五金机电有限公司 | Adjustable auto -lock class ratchet spanner |
-
2015
- 2015-08-06 CN CN201510477486.2A patent/CN104999402A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1068771A (en) * | 1912-08-03 | 1913-07-29 | Thomas Holmes | Wrench. |
| US3290970A (en) * | 1965-06-18 | 1966-12-13 | Lucia Santo De | Sliding jaw wrench having claw handle jaw adjustment means |
| US4276790A (en) * | 1979-05-16 | 1981-07-07 | Davis Brian L | Open-ended wrench having ratcheting action |
| GB2166992A (en) * | 1984-11-15 | 1986-05-21 | Lacrex Brevetti Sa | Universal wrench |
| CN87215074U (en) * | 1987-11-09 | 1988-08-10 | 田芸 | Self-adjustable ratchet wrench for use as a hand hammer |
| CN2053971U (en) * | 1989-05-23 | 1990-03-07 | 李祖华 | Universal spanner |
| CN2071567U (en) * | 1990-06-02 | 1991-02-20 | 周翔 | Self-locking spanner |
| CN2142057Y (en) * | 1992-09-29 | 1993-09-15 | 张彦才 | Universal self-gripping spanners |
| US5771761A (en) * | 1996-04-16 | 1998-06-30 | Binkowski; Kazimierz M. | Spring pivoted, ratcheting lever wrench |
| CN2454087Y (en) * | 2000-06-22 | 2001-10-17 | 李育谕 | Optimized pipe-wrench self-adjusting adjustable ratchet screwing-up spanner |
| US6799492B2 (en) * | 2002-11-27 | 2004-10-05 | Matthew Pearson | Ratchet wrench |
| CN201055980Y (en) * | 2007-07-04 | 2008-05-07 | 孟庆志 | Quick operation pipe vice |
| CN204819291U (en) * | 2015-08-06 | 2015-12-02 | 邵东和谐五金机电有限公司 | Adjustable auto -lock class ratchet spanner |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151028 |
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| RJ01 | Rejection of invention patent application after publication |