CN105397657A - Double-spring linkage multi-position lock wrench - Google Patents
Double-spring linkage multi-position lock wrench Download PDFInfo
- Publication number
- CN105397657A CN105397657A CN201510853060.2A CN201510853060A CN105397657A CN 105397657 A CN105397657 A CN 105397657A CN 201510853060 A CN201510853060 A CN 201510853060A CN 105397657 A CN105397657 A CN 105397657A
- Authority
- CN
- China
- Prior art keywords
- spring
- handle
- rivet
- moving jaw
- fixed handle
- 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
- B25B7/00—Pliers; Other hand-held gripping tools with jaws on pivoted limbs; Details applicable generally to pivoted-limb hand tools
- B25B7/12—Pliers; Other hand-held gripping tools with jaws on pivoted limbs; Details applicable generally to pivoted-limb hand tools involving special transmission means between the handles and the jaws, e.g. toggle levers, gears
-
- 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
- B25B7/00—Pliers; Other hand-held gripping tools with jaws on pivoted limbs; Details applicable generally to pivoted-limb hand tools
- B25B7/06—Joints
- B25B7/10—Joints with adjustable fulcrum
-
- 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
- B25B7/00—Pliers; Other hand-held gripping tools with jaws on pivoted limbs; Details applicable generally to pivoted-limb hand tools
- B25B7/14—Locking means
- B25B7/16—Locking means combined with means for tightening the operating arms of jaws
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)
Abstract
The invention relates to a double-spring linkage multi-position lock wrench. The double-spring linkage multi-position lock wrench comprises a fixed wrench jaw, a movable wrench jaw, a fixed handle, a movable handle, a lifting piece, a supporting plate, rivets and a pin shaft. The fixed wrench jaw is fixedly connected to the front end of the fixed handle, a threaded hole is formed in the rear end of the fixed handle, and an adjusting bolt is arranged in the threaded hole. The front end of the movable wrench jaw is connected to an arc-shaped groove in the front of the fixed handle through the pin shaft. The front of the movable handle is movably connected to the lower part of the rear end of the movable wrench jaw through the rivet A, the rear of the movable handle is movably connected to the lifting piece through the rivet C, and the middle of the movable handle is movably connected to the supporting plate through the rivet B. A middle-rear hole in the movable wrench jaw is connected to one end of an extension spring, a front hole in the movable wrench jaw is connected to one end of a special-shaped spring, the other end of the extension spring is connected to the other end of the special-shaped spring, and the joint between the extension spring and the special-shaped spring is pressed on the inner side of the handle part of the fixed handle through the pin shaft. The double-spring linkage multi-position lock wrench has the advantages of being reasonable in design, simple and compact in structure, easy to manufacture, low in cost and convenient to use.
Description
Technical field
The present invention relates to the technical field of hand-operated tools locking pliers, specifically a kind of two-man act links many gears locking pliers.
Background technology
Existing locking pliers has single gear locking pliers and many gears locking pliers two kinds, generally by regular jaw, moving jaw, fixed handle, flexible handle, support plate, lift sheet, main spring, set screw, rivet form.Two kinds of locking pliers have a main spring, but its effect is different.In single gear locking pliers, the effect of main spring is: after handle unlocks, under the pulling force effect of main spring, handle, moving jaw, support plate can automatically spring open, and realize pliers mouth and open, holding workpiece.No matter jaw opens or closes, under main spring effect, all parts are all in stress, owing to having mutually stressed effect between all parts, namely the free clearance between each part is eliminated, structure relative compact between each part, does not have free free gap, avoids slack and undisciplined phenomenon; What main spring applied all the time for moving jaw is pulling force, and direction is downward.In many gears locking pliers, the effect of main spring is: when moving jaw moves to different gears, main spring forces on moving jaw, press against in the deep-slotted chip breaker of fixed handle by the bearing pin on moving jaw, what its main spring applied all the time for moving jaw is thrust, and direction is upwards.If apply rightabout power, the bearing pin of moving jaw will skid off the deep-slotted chip breaker of fixed handle, and cannot fix moving jaw, the function of pliers just loses.Existing traditional many gears locking pliers does not apply the main spring of pulling force, and therefore cause the pulling force lacking spring between each part to connect, each part has free clearance each other, and the structure that just seems is not compact, and greatly just there is slack and undisciplined phenomenon free free gap.For overcoming this defect, the bolt of current many gears locking pliers all connects together with support plate, and to prevent support plate from deviating from, adjusting nut is positioned at fixed handle middle part.The adjustment of this structure uses very inconvenient.The structural design that its main cause is main spring also exists defect, the contradiction that moving jaw is subject to a pair rightabout active force simultaneously cannot be solved.
Summary of the invention
The object of the invention is the deficiency in order to solve above-mentioned technology, provide a kind of reasonable in design, structure simple, cost is low, easily manufacture, and two-man act easy to use links many gears locking pliers.
The technical solution adopted in the present invention is: a kind of two-man act links many gears locking pliers, comprise regular jaw, moving jaw, fixed handle, flexible handle, lift sheet, support plate, rivet, bearing pin, regular jaw is fixedly connected on the front end of fixed handle by rivet, moving jaw front end is connected by the anterior deep-slotted chip breaker of bearing pin and fixed handle, flexible handle front end is flexibly connected with moving jaw rear end lower by rivet A, flexible handle rear portion is flexibly connected by rivet C and torsion spring and lifts sheet, be flexibly connected with support plate by rivet B in the middle part of flexible handle, it is characterized in that after on described moving jaw, stomidium connects one end of extension spring, front aperture on moving jaw is connected one end of heterotypic spring, the other end of the extension spring angle formed that is connected with the other end of heterotypic spring is 40 °-60 °, extension spring and heterotypic spring connection are pressed in inside the shank of fixed handle by bearing pin A, there is screwed hole the rear end of described fixed handle, has adjusting bolt in screwed hole.
Described heterotypic spring cuboid in the form of a ring, its two ends are circular arc, and the arc radius of heterotypic spring one end is less than the arc radius of the other end, and one end that its arc radius is little is connected with front aperture on moving jaw.
The present invention is reasonable in design, and structure is simple, compact, easily manufactures, cost is low, because one end of extension spring is connected with one end of heterotypic spring, have the effect that two-man act links, nut is placed in fixed handle afterbody, adjusting bolt is placed in fixed handle rear end for adjusting the opening amount of pliers, easy to use.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is original speed position open mode schematic diagram of the present invention.
Fig. 3 is the present invention's different gear open mode schematic diagram.
Fig. 4 is the structural representation of heterotypic spring.
Fig. 5 is the top view of Fig. 4.
Fig. 6 is force analysis schematic diagram.
Fig. 7 is existing many gears locking pliers structural representation.
Mark in figure: 1, regular jaw, 2, moving jaw, 3, rivet, 4, rivet A, 5, bearing pin, 6, heterotypic spring, 7, flexible handle, 8, rivet B, 9, extension spring, 10, support plate, 11, bearing pin A, 12, rivet C, 13, torsion spring, 14, lift sheet, 15, fixed handle, 16, adjusting bolt.
Detailed description of the invention
As Fig. 1, 2, 3, 4, shown in 5: a kind of two-man act links many gears locking pliers, comprise regular jaw 1, moving jaw 2, fixed handle 15, flexible handle 7, lift sheet 14, support plate 10, rivet, bearing pin, regular jaw 1 is fixedly connected on the front end of fixed handle 15 by rivet 3, moving jaw 2 front end is connected with the anterior deep-slotted chip breaker of fixed handle 15 by bearing pin 5, flexible handle 7 front end is flexibly connected with moving jaw 2 rear end lower by rivet A4, flexible handle 7 rear portion is flexibly connected by rivet C12 and torsion spring 13 and lifts sheet 14, be flexibly connected with support plate 10 by rivet B8 in the middle part of flexible handle 7, after on moving jaw 2 described in it, stomidium connects one end of extension spring 9, front aperture on moving jaw 2 is connected one end of heterotypic spring 6, the other end of extension spring 9 angle formed that is connected with the other end of heterotypic spring 6 is 40 °-60 °, extension spring 9 and heterotypic spring 6 connection are pressed in inside the shank of fixed handle 15 by bearing pin A11, there is screwed hole the rear end of described fixed handle 15, has adjusting bolt 16 in screwed hole.Described heterotypic spring 6 cuboid in the form of a ring, its two ends are circular arc, and the arc radius of heterotypic spring 6 one end is less than the arc radius of the other end, and one end that its arc radius is little is connected with front aperture on moving jaw
As shown in Figure 1, when pliers closes, flexible handle 7 and support plate 10 acting in conjunction promote moving jaw 2 and rotate around bearing pin 5, extension spring 9 is driven to stretch in the rotary course of moving jaw 2 rear end, the other end of extension spring 9 is connected on heterotypic spring 6, the pulling force of extension spring 9 is applied to again on the bearing pin 5 of moving jaw 2 by heterotypic spring 6, thus applying gives the power that bearing pin 5 moves in deep-slotted chip breaker, guarantees that bearing pin 5 can not deviate from deep-slotted chip breaker.Concrete force analysis is F1 left-hand force, drives F2 effect, and F2 and F4 acting in conjunction produces F5, F1 and F5 acting in conjunction generation F6, F6 and acts on bearing pin 5.
As shown in Figure 2, when pliers is opened, flexible handle 7 disappears with the thrust of support plate 10 pairs of moving jaws 2, extension spring 9 will pull moving jaw 2 to open around bearing pin 5 rotation rapidly, at this moment the power that extension spring 9 is applied to the front end of moving jaw 2 by heterotypic spring 6 still exists, thus be applied to the power that bearing pin 5 moves in deep-slotted chip breaker, guarantee that bearing pin 5 can not deviate from deep-slotted chip breaker.Concrete force analysis is that F1 is reduced to 0, F3 effect drive moving jaw 2 Unscrew instantaneously, and after forwarding certain position to, F1 recovers left-hand force, drives F2 effect, and F2 and F4 acting in conjunction produces F5, F1 and F5 acting in conjunction generation F6, F6 and acts on bearing pin 5.
As shown in Figure 3, when changing different gear, people is needed to apply a force to bearing pin 5 to overcome the combined force of extension spring 9 and heterotypic spring 6, bearing pin 5 is made to shift out deep-slotted chip breaker, simultaneously move to the deep-slotted chip breaker that will arrive along deep-slotted chip breaker lower end elongated slot, removing people is after the power being applied to bearing pin 5, at extension spring 9 with under the combined force of heterotypic spring 6, bearing pin 5 on moving jaw 2 can move to again in corresponding deep-slotted chip breaker, realizes the object changing gear.Concrete force analysis is artificial applying and F6 opposition, shifts out after bearing pin 5 arrives assigned address, removes the active force reverse with F6, then continue to repeat previous loading process.
Force analysis figure as shown in Figure 6, F1 is active force, specifically provided by rivet A4 by flexible handle 2, F2, F3 two rightabout active forces suffered by extension spring, F4 is that bearing pin A11 is to heterotypic spring 6 applied pressure, F5 is the thrust that heterotypic spring 6 pairs of moving jaws 2 apply, and F6 is the thrust that moving jaw 2 is applied to bearing pin 5.α angle is wherein 40 °-60 °.
In above-mentioned motion process, extension spring 9 and heterotypic spring 6 link, extension spring 9 with the interlock feature of heterotypic spring 6 is: extension spring 9, heterotypic spring 6 and moving jaw 2 define a closed triangle, one end that the other end of extension spring 9 is large with heterotypic spring 6 arc radius is connected, due to the restriction inside bearing pin A11 and fixed handle 15 shank, heterotypic spring 6 afterbody can only move forward and backward, extension spring 9 is by being connected with heterotypic spring 6 afterbody, and pulling force is applied to heterotypic spring 6, a part for pulling force is applied to again moving jaw 2 front end by heterotypic spring 6.Pass through rivet A4 under the supporting role of moving jaw 2 at flexible handle 7, support plate 10, no matter moving jaw 2 opens or closes, and the bearing pin 5 on it all stressedly all the time can be positioned at deep-slotted chip breaker.And the pulling force that extension spring 9 pairs of moving jaw 2 rear ends apply can make moving jaw 2 automatically open when flexible handle 7 is opened.
Claims (2)
1. a two-man act links many gears locking pliers, comprise regular jaw, moving jaw, fixed handle, flexible handle, lift sheet, support plate, rivet, bearing pin, regular jaw is fixedly connected on the front end of fixed handle by rivet, moving jaw front end is connected by the anterior deep-slotted chip breaker of bearing pin and fixed handle, flexible handle front end is flexibly connected with moving jaw rear end lower by rivet A, flexible handle rear portion is flexibly connected by rivet C and torsion spring and lifts sheet, be flexibly connected with support plate by rivet B in the middle part of flexible handle, it is characterized in that after on described moving jaw, stomidium connects one end of extension spring, front aperture on moving jaw is connected one end of heterotypic spring, the other end of the extension spring angle formed that is connected with the other end of heterotypic spring is 40 °-60 °, extension spring and heterotypic spring connection are pressed in inside the shank of fixed handle by bearing pin A, there is screwed hole the rear end of described fixed handle, has adjusting bolt in screwed hole.
2. two-man act according to claim 1 links many gears locking pliers, it is characterized in that described heterotypic spring cuboid in the form of a ring, its two ends are circular arc, the arc radius of heterotypic spring one end is less than the arc radius of the other end, and one end that its arc radius is little is connected with front aperture on moving jaw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510853060.2A CN105397657A (en) | 2015-11-27 | 2015-11-27 | Double-spring linkage multi-position lock wrench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510853060.2A CN105397657A (en) | 2015-11-27 | 2015-11-27 | Double-spring linkage multi-position lock wrench |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105397657A true CN105397657A (en) | 2016-03-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510853060.2A Pending CN105397657A (en) | 2015-11-27 | 2015-11-27 | Double-spring linkage multi-position lock wrench |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105397657A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114888730A (en) * | 2022-07-14 | 2022-08-12 | 张家港史帝曼五金制品有限公司 | Combined multifunctional locking pliers |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5688161A (en) * | 1994-01-18 | 1997-11-18 | Philip Morris Incorporated | Method and apparatus for sharpening and cleaning scalloped-edged blades |
| US5964648A (en) * | 1996-10-10 | 1999-10-12 | B. Maier Zerkleinerungstechnik Gmbh | Chipper knife grinding method and apparatus |
| CN2410082Y (en) * | 2000-03-17 | 2000-12-13 | 东南大学 | Self-locking power-increasing pliers |
| CN2411871Y (en) * | 2000-04-06 | 2000-12-27 | 姚德利 | Mechanic wire clippers |
| US20120216657A1 (en) * | 2011-02-24 | 2012-08-30 | Marks Joel S | Compact adjustable locking pliers |
| CN205111617U (en) * | 2015-11-27 | 2016-03-30 | 威海市威力高档工具有限公司 | Many gears of two -man act linkage locking pliers |
-
2015
- 2015-11-27 CN CN201510853060.2A patent/CN105397657A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5688161A (en) * | 1994-01-18 | 1997-11-18 | Philip Morris Incorporated | Method and apparatus for sharpening and cleaning scalloped-edged blades |
| US5964648A (en) * | 1996-10-10 | 1999-10-12 | B. Maier Zerkleinerungstechnik Gmbh | Chipper knife grinding method and apparatus |
| CN2410082Y (en) * | 2000-03-17 | 2000-12-13 | 东南大学 | Self-locking power-increasing pliers |
| CN2411871Y (en) * | 2000-04-06 | 2000-12-27 | 姚德利 | Mechanic wire clippers |
| US20120216657A1 (en) * | 2011-02-24 | 2012-08-30 | Marks Joel S | Compact adjustable locking pliers |
| CN205111617U (en) * | 2015-11-27 | 2016-03-30 | 威海市威力高档工具有限公司 | Many gears of two -man act linkage locking pliers |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114888730A (en) * | 2022-07-14 | 2022-08-12 | 张家港史帝曼五金制品有限公司 | Combined multifunctional locking pliers |
| CN114888730B (en) * | 2022-07-14 | 2022-10-18 | 张家港史帝曼五金制品有限公司 | Combined multifunctional locking pliers |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160316 |