CN106141947A

CN106141947A - A kind of hand-operated tools

Info

Publication number: CN106141947A
Application number: CN201510178834.6A
Authority: CN
Inventors: 王暋
Original assignee: Hangzhou Great Star Industrial Co Ltd
Current assignee: Hangzhou Great Star Tools Co Ltd; Hangzhou Great Star Industrial Co Ltd
Priority date: 2015-04-15
Filing date: 2015-04-15
Publication date: 2016-11-23

Abstract

A kind of hand-operated tools.The invention discloses a kind of labor-saving plier, including first handle, second handle, the first work portion, the second work portion and bindiny mechanism of work portion, the fixing connection of first handle and the first work portion, second handle and the second work portion are pivotably connected, second work portion is connected with the first work portion by bindiny mechanism of work portion, second work portion has primary importance and the second position, when second handle is by when moving near first handle away from first handle, and bindiny mechanism of work portion makes the second work portion be moved to the second position by primary importance.Wherein, primary importance be the second work portion away from location during the first work portion, when the second work portion is in the described second position, compared with primary importance, the second work portion relative to the first work portion there occurs rotation and translation.Compared with existing locking pliers, the labor-saving plier that the present invention provides can provide bigger clamping force, thus plays the effect of further labour-saving.

Description

A kind of hand-operated tools

Technical field

The present invention relates to a kind of hand-operated tools, particularly relate to a kind of labor-saving plier.

Background technology

Common pliers generally comprises fixed pliers head, movable binding clip and handle, acts on the power on handle, through lever The conversion of principle, is transformed on binding clip the active force becoming big.But, the power on handle that once acts on disappears, jaw The most just unclamp, it is impossible to continue clamping workpiece.Labor-saving plier, owing to employing the principle of lever for twice, therefore, acts on Power on handle is converted by twice lever principle, the clamping force times over applying power that finally can be formed at jaw, Thus reach labour-saving purpose.

In existing locking pliers, movable binding clip and fixed pliers head are pivotably connected, due to pivot by single fixing axle Rotating shaft is distant with jaw, if wishing to realize labour-saving purpose further, can be by pivotal axis in the way of employing It is configured closer to jaw, but the consequence that this mode is brought is that the opening angle of jaw is by reduction.

Summary of the invention

Because the drawbacks described above of prior art, it is more laborsaving that the technical problem to be solved is to provide one, with Time ensure to have the labor-saving plier of relatively mouth of tongs.

For achieving the above object, the invention provides a kind of hand-operated tools, including:

First handle and fix the first work portion being connected with described first handle；

Second handle and the second work portion being pivotably connected with described second handle；Described second work portion has One position and the second position；And

Bindiny mechanism of work portion, described second work portion is by bindiny mechanism of described work portion with described first work portion even Connecing, bindiny mechanism of described work portion is configured to: when described second handle is by moving to close away from described first handle During described first handle, it is described that bindiny mechanism of described work portion makes described second work portion be moved to by described primary importance The second position；

Wherein, described primary importance be described second work portion away from location during described first work portion, work as institute When the second work portion that states is in the described second position, compared with described primary importance, described second work portion is relative to institute The first work portion that states there occurs rotation and translation.

Further, bindiny mechanism of described work portion include the hole being arranged in described first work portion, be arranged on described Groove in second work portion and run through the hole in described first work portion and the axle of the groove in described second work portion；Institute State axle to move in described groove and rotate, enable described second work portion to occur relative to described first work portion Rotate and translation.

Alternatively, bindiny mechanism of described work portion includes the hole being arranged in described second work portion, is arranged on described Groove in one work portion and run through the hole in described second work portion and the axle of the groove in described first work portion；Described Axle can move in described groove and rotate, and enables described second work portion to occur to turn relative to described first work portion Move and translation.

Further, described groove is level trough, skewed slot or arc groove.

Preferably, bindiny mechanism of described work portion includes:

It is arranged on the first hole in described first work portion, the first groove being arranged in described second work portion and runs through Described first hole and the first axle of described first groove；

It is arranged on the second hole in described second work portion, the second groove being arranged in described first work portion and runs through Described second hole and the second axle of described second groove；

Described first axle can move and rotate in described first groove, and described second axle can be in described second groove Move and rotate, enable described second work portion to rotate relative to described first work portion and to translate.

Alternatively, bindiny mechanism of described work portion includes:

It is arranged on the first hole in described second work portion, the first groove being arranged in described first work portion and runs through Described first hole and the first axle of described first groove；

It is arranged on the second hole in described first work portion, the second groove being arranged in described second work portion and runs through Described second hole and the second axle of described second groove；

Further, the fit clearance of described first axle and described first hole and described first groove less than described second axle with Described second hole and the fit clearance of described second groove.

Alternatively, described first axle and the fit clearance of described first hole and described first groove are equal to described second axle and institute State the second hole and the fit clearance of described second groove.

Alternatively, described first axle and the fit clearance of described first hole and described first groove are more than described second axle and institute State the second hole and the fit clearance of described second groove.

Further, described first groove is arc groove or square groove.

Further, described second groove is arc groove or square groove.

In a better embodiment of the present invention, it is provided that a kind of hand-operated tools, including:

Second handle and the second work portion being pivotably connected with described second handle；Described second work portion has One position and the second position；

Bindiny mechanism of work portion, described second work portion is by bindiny mechanism of described work portion with described first work portion even Connecing, bindiny mechanism of described work portion is configured to: when described second handle is by moving to close away from described first handle During described first handle, it is described that bindiny mechanism of described work portion makes described second work portion be moved to by described primary importance The second position；And

Rod-like element, described rod-like element is arranged between described second handle and described first handle；

Further, described groove is level trough, skewed slot or arc groove.

Preferably, bindiny mechanism of described work portion includes:

Alternatively, bindiny mechanism of described work portion includes:

Further, described first groove is arc groove or square groove.

Further, described second groove is arc groove or square groove.

Further, described hand-operated tools also includes the bullet being arranged between described second work portion and described first handle Property part.

Further, described second work portion is provided with hanging hole, described first handle is provided with hook portion, described bullet One end of property part is limited in described hanging hole, and the other end is connected with described hook portion.

Further, described hand-operated tools also includes the afterbody of adjusting screw rod, described adjusting screw rod and described first handle It is threaded connection.

Further, described rod-like element has the first end and the second end, the first end of described rod-like element and described second-hand Handle is pivotably connected, and the second end of described rod-like element and described first handle are pivotably connected and against described regulation Screw rod.

Further, when described adjusting screw rod moves relative to described first handle, described adjusting screw rod makes described bar Second end of shape part moves relative to described first handle.

Further, being provided with groove in described first handle, the opening of groove is towards described second handle.

Further, a part for described adjusting screw rod extends in the groove of described first handle, and another part is placed in institute State the outside of first handle.

Further, being provided with groove in described second handle, the opening of groove is towards described first handle.

Further, it has been pivotably connected the 3rd handle in the groove of described second handle.

Further, the length of described 3rd handle is less than the length of described second handle.

Further, described 3rd handle has elongated end, when described 3rd handle pivots relative to described second handle Time, described elongated end can be against described second handle, to stop described 3rd handle to continue relative to described second-hand Handle pivots.

Further, described rod-like element has protuberance, when described protuberance enters in the groove of described second handle, Described hand-operated tools is locked；Direction towards described second handle rotates described 3rd handle, and described elongated end can be by Described protuberance is released in the groove of described second handle, makes described hand-operated tools be unlocked.

Further, described 3rd handle is connected with described second handle position and described rod-like element and described second-hand The position that handle connects is separated, and the position being connected with described second handle than described rod-like element is further from the second work portion.

Further, described rod-like element is connected with described second handle position and described second work portion and described second The position that handle connects is separated.

In another better embodiment of the present invention, it is provided that a kind of hand-operated tools, including:

Rod-like element, described rod-like element is arranged between described second handle and described first handle；And

Place restrictions on mechanism, described in place restrictions on mechanism for placing restrictions on the displacement relative to described second handle of the described rod-like element；

Further, described groove is level trough, skewed slot or arc groove.

Preferably, bindiny mechanism of described work portion includes:

Alternatively, bindiny mechanism of described work portion includes:

Further, described first groove is arc groove or square groove.

Further, described second groove is arc groove or square groove.

Further, place restrictions on mechanism described in include the mounting hole being arranged in described second work portion and be arranged on described waist Place restrictions on axle in shape hole, described rod-like element pass through described in place restrictions on axle and be pivotably connected with described second handle, described limit Only axle and described mounting hole cooperatively form described in place restrictions on mechanism.

Further, placing restrictions on axle in described mounting hole for during towards described first handle when described, described first works Portion and described second work portion are in and unclamp shape；Axle is placed restrictions in described mounting hole for away from described first handle when described Time, described first work portion and described second work portion are in clamping shape.

Further, the 3rd handle, described 3rd handle and described second handle it are provided with in the groove of described second handle Connect, and described 3rd handle pass through described in place restrictions on axle and be connected with described rod-like element.

Further, described 3rd handle is connected with described second handle position and described second handle and described second The position that work portion connects is separated, and the position that is connected with described second handle of described 3rd handle and described 3rd hands The position that handle is connected with described rod-like element is separated.

Further, the length of described second handle is more than the length of described 3rd handle.

Further, in described second handle rotation process, the point being connected of described rod-like element and described 3rd handle The junction point of described 3rd handle and described second handle and the company of described second handle with described second work portion can be crossed The line of contact composition, when described second handle is drawn close to described first handle and is crossed described line, described first Work portion and described second work portion are clamped；When described second handle away from described first handle and crosses described line Time, described first work portion and described second work portion are released.

In the another better embodiment of the present invention, it is provided that a kind of hand-operated tools, including:

Slide mechanism, described slide mechanism is slidably mounted on described first handle；

Rod-like element, one end of described rod-like element is connected with described second handle pivotly, and the other end is pivotably mounted On described slide mechanism；

Further, described groove is level trough, skewed slot or arc groove.

Preferably, bindiny mechanism of described work portion includes:

Alternatively, bindiny mechanism of described work portion includes:

Further, described first groove is arc groove or square groove.

Further, described second groove is arc groove or square groove.

Further, one end that described rod-like element is connected with described slide mechanism is made up of curved section, and near described the The curved section ratio of curvature of one handle is big away from the curved section curvature of described first handle.

Further, described hand-operated tools also includes that retaining mechanism, described retaining mechanism are pacified slidably and forwards described to On one handle, and it is positioned at the described slide mechanism distal side near described first handle.

Further, described retaining mechanism includes that guide rod and locking plate, described guide rod are arranged on described first handle and wear It is located on described locking plate.

Further, described locking plate is multi-disc, and locking plate described in multi-disc fits mutually.

Further, the cross section of described guide rod is fillet trapezoid, and the centre of described locking plate has the described guide rod of confession and passes Hole, described hole is arranged to have the fillet trapezoid identical with the shape of cross section of described guide rod, and described guide rod is with described Locking plate is matched in clearance.

Further, described governor motion is arranged on described guide rod, is positioned at described slide mechanism and described retaining mechanism Between, described governor motion is configured to can be subjected to displacement on the length direction of described guide rod.

Further, described governor motion is configured to, when described governor motion reaches towards the either end of described guide rod Maximum displacement, when described hand-operated tools is locked, one end that described rod-like element is connected with described slide mechanism can Contact with described governor motion.

Further, described governor motion includes regulating screw and carrier, and described carrier is arranged on described guide rod, institute State regulation screw to install on the carrier, and relative to described carrier, the displacement along described guide rod direction can occur.

Further, the cross section of described carrier is identical with the cross section of described locking plate, and identical with described locking plate Position has the hole identical with described clip shape size, and described guide rod is through the hole on described carrier.

Further, being provided with groove in described second handle, the opening of groove is towards described first handle, described second-hand The 3rd handle it has been pivotably connected in the groove of handle.

Further, described rod-like element has protuberance, when described protuberance enter described second handle interior time, institute State hand-operated tools to be locked；Direction towards described second handle rotates described 3rd handle, and described elongated end can be by institute State protuberance to release in the groove of described second handle, make described hand-operated tools be unlocked.

The hand-operated tools that the present invention provides can be labor-saving plier, water pump pliers etc., wherein, and the first work portion and the second work Portion is connected by bindiny mechanism of work portion, and the bindiny mechanism of portion that no matter works uses single shaft or the setting of twin shaft, the second work Make portion relative to the first work portion center of rotation all than existing locking pliers closer to jaw, thus than existing energetically Pincers more can be laborsaving.Further, since axle is arranged in groove, i.e. when the second work portion is relative to the motion of the first work portion, Axle moves in groove and rotates, and groove moves relative to axle in other words, thus ensure that and can obtain bigger jaw.Separately On the one hand, when clamp object time, owing to axle can be moved relative to groove, thus the second work portion except relative to Outside first work portion rotates, it also occur that translation, so that the second work portion and the first work portion and clipped object The contact area (i.e. firmly grasping area) of body increases so that capture object more effective.

Below with reference to accompanying drawing, the technique effect of design, concrete structure and the generation of the present invention is described further, with It is fully understood from the purpose of the present invention, feature and effect.

Accompanying drawing explanation

Fig. 1 is the hand-operated tools schematic diagram of a preferred embodiment of the present invention, shows the first work portion and in figure The shape of level trough when two work portions are connected by single shaft；

Fig. 2 is the hand-operated tools schematic diagram of a preferred embodiment of the present invention, shows the first work portion and in figure The shape of skewed slot when two work portions are connected by single shaft；

Fig. 3 is the hand-operated tools schematic diagram of a preferred embodiment of the present invention, shows the first work portion and in figure The shape of arc groove when two work portions are connected by single shaft；

Fig. 4 is the hand-operated tools schematic diagram of a preferred embodiment of the present invention, shows the first work portion and in figure The shape of arc groove when two work portions are connected by twin shaft

Fig. 5 be the present invention a specific embodiment in the schematic diagram of labor-saving plier, in figure, jaw is closure state；

Fig. 6 be the present invention a specific embodiment in the schematic diagram of labor-saving plier, in figure, jaw is open configuration；

Fig. 7 be the present invention a specific embodiment in the schematic diagram of labor-saving plier, in figure, jaw is shape during gripping objects State；

Fig. 8 be the present invention a specific embodiment in prevent the schematic diagram of the opened big water pump pliers of handle；

Fig. 9 be the present invention a specific embodiment in the schematic diagram of self-adjusting water pump clamp.

Detailed description of the invention

As Figure 1-4, a preferred embodiment of the present invention provides a kind of hand-operated tools, including first handle 2, First work portion 1, second handle the 4, second work portion 3 and bindiny mechanism of work portion.Wherein, first handle 2 and Two handles 4 are fixing to be connected, and in alternative embodiment, first handle 2 and second handle 4 can be one. Second handle 4 is connected with the second work portion 3 pivotly, and the second work portion 3 has primary importance and the second position. Herein the primary importance in the second work portion 3 refer to the second work portion 3 away from location during the first work portion 1, when When second work portion 3 is in the second position, compared with primary importance, the second work portion 3 is relative to the first work portion 1 There occurs rotation and translation.In embodiments of the invention, the first work portion 1 and the second work portion 3 cooperatively form clamping The jaw of object or the sheared edge of shearing object, if form jaw or sheared edge depends on the first work portion 1 and second The shape of work portion 3 matching part.

Second work portion 3 is connected with the first work portion 1 by bindiny mechanism of work portion 100, bindiny mechanism of work portion 100 It is configured to: when second handle 4 is by when moving near first handle 2 away from first handle 2, and work portion connects machine Structure 100 makes the second work portion 3 be moved to the described second position by primary importance.

Hole that specifically, as Figure 1-3, bindiny mechanism of work portion 100 includes being arranged in the first work portion 1, It is arranged on the groove 6 in the second work portion 3 and runs through the hole in the first work portion 1 and the groove 6 in the second work portion 3 Axle 5；Axle 5 can move in groove 6 and rotate, and makes the second work portion 3 can be relative to 1, the first work portion Raw rotation and translation.But being not restricted to this, in alternative embodiment, hole is arranged in the second work portion 3, groove 6 are arranged in the first work portion 1, and axle 5 runs through the hole in the second work portion 3 and the groove 6 in the first work portion 1；Axle 5 can move in groove 6 and rotate, and make the second work portion 3 can rotate peace relative to the first work portion 1 Move.

In order to prevent the first work portion 1 and the second work portion 3 from misplacing when coordinating, the first work can will be arranged on Groove 6 in portion 1 or the second work portion 3 is designed as level trough, skewed slot or arc groove.So, when to first handle 2 With second handle 4 apply external force make second handle 4 rotate relative to first handle 2 time, the second work portion 3 is around axle 5 Rotate, simultaneously because groove 6 is moving relative to axle 5, be equivalent to axle 5 in groove 6 along groove 6 shape relative to Groove 6 moves so that the second work portion 3 also there occurs translation relative to the first work portion 1.Second work portion 3 is relative Benefit in the generation translation of the first work portion 1 is, when hand-operated tools is for gripping objects, and can be according to gripped object Shape, thickness automatically adjust the 1, second work portion 3 of the first work portion and the angle of gripped object, to reach optimal The way of contact.If the first work portion 1 and the second work portion 3, then gripped object can only be with similar scissor side Formula is clamped.Furthermore it is also possible to increase the contact area in the first work portion 1 and the second work portion 3 and clipped object part, I.e. firmly grasp area to increase, thus it is more reliable and effective to capture object.Herein, the definition of level trough is: when the first work When portion 1 and the jaw of the second work portion 3 formation or sheared edge Guan Bi, the first work portion 1 closes with the second work portion 3 Chalaza is level trough to the groove at place on the vertical line of the line in the clamping axle center of axle 5, and i.e. the fluting direction of groove 6 is the The closing point in one work portion 1 and the second work portion 3 to axle 5 clamping axle center line vertical line on.If groove 6 or The fluting direction not closing point in the first work portion 1 and the second work portion 3 of groove 6 is to the line clamping axle center of axle 5 Vertical line on (i.e. groove 6 with described line out of plumb) be then skewed slot.Arc groove is a kind of special circumstances in skewed slot, Arc groove makes axle 5 be circular arc relative to the movement locus of groove 6 in groove 6.

As another kind of preferred embodiment, as shown in Figure 4, bindiny mechanism of work portion 100 includes: be arranged on the The first hole, the first groove 8 being arranged in the second work portion 3 in one work portion 1 and run through the first hole and the first groove First axle 7 of 8；The second groove 10 be arranged on the second hole in the second work portion 3, being arranged in the first work portion 1 And run through the second axle 9 of the second hole and the second groove 10.But it is not restricted to this, in alternative embodiment, first Hole is arranged in the second work portion 3, and the first groove 8 is arranged in the first work portion 1, and now the first axle 9 runs through second The first hole in work portion 3 and the first groove 8 in the first work portion 1；Second hole is arranged in the first work portion 1, Second groove 10 is arranged in the second work portion 3, and the second axle 9 runs through the second hole in the first work portion 1 and the second work The second groove 10 in portion 3.First axle 7 can move and rotate that (the first groove 8 can phase in other words in the first groove 8 First axle 7 is moved and is rotated), and the second axle 9 can move and rotate in the second groove 10, makes the second work Portion 3 can rotate relative to the first work portion 1 and translate.First axle 7 to the second axle 9 is closer to the first work Clamping that portion 1 and the second work portion 3 are formed or share zone.Wherein, the first groove 7 can be arc groove or square groove, Second groove 9 can be arc groove or square groove.

In presently preferred embodiments of the present invention, the first axle 7 is generally set with the fit clearance in the first hole and the first groove 8 Less than the second axle 9 and the second hole and the fit clearance of the second groove 10.So it is subject to when first handle 2 and second handle 4 When external force makes the first work portion 1 and the second work portion 3 clamp or shear object, due to the first axle 7 and the first hole and The fit clearance of one groove 8 is less, and compared to the second axle 9, the first axle 7 is first subjected to first groove 8 active force to it, Until the first axle 7 can not continue to be moved relative to the first groove 8 under this active force, the first groove 8 can not in other words Continuing when being moved relative to the first axle 7, the second axle 9 starts by second groove 10 active force to it.Therefore, In this case, the first axle 7 plays the effect of main stress, and the second axle 9 plays auxiliary the first axle 7 and bears external force Effect.

In other embodiments of the invention, the fit clearance of the first axle 7 and the first hole and the first groove 8 is arranged to In the second axle 9 and the second hole and the fit clearance of the second groove 10.In this case, when first handle 2 and second handle 4 when being made the first work portion 1 and the second work portion 3 clamp or shear object by external force, due to the first axle 7 and first The fit clearance of hole and the first groove 8 is equal to the second axle 9 and the second hole and the fit clearance of the second groove 10, the first axle 7 While active force by the first groove 8, the second axle 9 is also by the active force of the second groove 10, the i.e. first axle 7 and Two axles 9 are similar to averraged external force.

In other embodiments of the invention, if the fit clearance in the first axle 7 and the first hole and the first groove 8 is arranged to More than the second axle 9 and the second hole and the fit clearance of the second groove 10, then the second axle 9 plays the effect of main stress, and One axle 7 assists the second axle 9 to bear external force.

The present embodiment arranges the effect of two axles (first axle 7 and the second axle 9) and is, outside allowing two axles jointly bear The effect of power (either the main stress of one of them axle and another axle auxiliary undertakes stress, or two axle average marks Load stress), compared to being only provided with the situation of an axle, the loss that axle can be reduced and the deformation of hand-operated tools brought. On the other hand, the effect arranging two axles also resides in and can limit the second work portion 3 around the first axle 7 by the second axle 9 Rotate the jaw or the size of sheared edge formed relative to the first work portion 1, prevent jaw or sheared edge excessive and affect Actual use, makes jaw or sheared edge be in suitable size.The most also first handle 2 and second handle 4 are limited Open apart from excessive, so that user facilitates implementation one-handed performance.

Fig. 5-7 shows a specific embodiment of the present invention, this embodiment offers a kind of hand-operated tools, definitely Say, be a kind of labor-saving plier, including first handle 13, the 11, second work portion 12 of second handle the 14, first work portion, Bindiny mechanism of work portion 200, rod-like element 21, elastic component the 22, the 3rd handle (not shown) and adjusting screw rod 25.Its In, first handle 13 and the fixing connection in the first work portion 11, both can also be integrally formed.Second handle 14 can pivot Turn ground to be connected with the second work portion 12.In the present embodiment, bindiny mechanism of work portion uses the setting of foregoing twin shaft, The first groove 18 of i.e. include the first hole being arranged in the first work portion 11, being arranged in the second work portion 12 and passing through Wear the first axle 17 of the first hole and the first groove 18；It is arranged on the second hole in the second work portion 12, is arranged on the first work Make the second groove 20 in portion and run through the second axle 19 of the second hole and the second groove 20.First axle 17 to the second axle 19 The jaw formed closer to the first work portion 11 and the second work portion 12.First axle 17 can move in the first groove 18 Dynamic and rotate, and the second axle 19 can move and rotate in the second groove 20, make the second work portion 12 can be relative to First work portion 11 rotates and translates.Wherein the first groove 18 and the second groove 20 are arc groove, it is also possible to for square groove. As alternative embodiment, bindiny mechanism of work portion 200 can also use the setting of foregoing single shaft (herein Not shown), the bindiny mechanism of portion 200 that i.e. works includes the hole being arranged in the first work portion 11, is arranged on the second work Groove in portion 12 and run through the hole in the first work portion and the axle of the groove in the second work portion 12.If single shaft is arranged, Groove can be level trough, skewed slot or arc groove.

In the present embodiment, the second work portion 12 has primary importance and the second position.Second work portion 12 passes through work Bindiny mechanism of portion 200 is connected with the first work portion 11.When second handle 14 is by moving to close away from first handle 13 During first handle 13, bindiny mechanism of work portion 200 makes the second work portion 12 be moved to the second position by primary importance. Herein, the primary importance in the second work portion 12 refers to the second work portion 12 away from position residing during the first work portion 11 Putting, when the second work portion 12 is in the second position, compared with primary importance, the second work portion 12 is relative to first Work portion 11 there occurs rotation and translation.

In the present embodiment, the fit clearance of the first axle 17 and the first hole and the first groove 18 is less than the second axle 19 and the second hole Fit clearance with the second groove 20.In the alternative embodiment of the present embodiment, the first axle 17 and the first hole and The fit clearance of one groove 18 is it can also be provided that equal to or more than between the coordinating of the second axle 19 and the second hole and the second groove 20 Gap.As it was previously stated, the effect arranging two axles is by two axle shared External Force Actings, thus reduce axle Abrasion and the deformation of labor-saving plier, another effect is the size being limited jaw by the second axle 19, the most also limits the simultaneously One handle 13 and second handle 14 open apart from excessive, so that user facilitates implementation one-handed performance

In the labor-saving plier of the present embodiment, in first handle 13, it is provided with the recessed of the length direction extension along first handle 13 Groove, the opening of groove, towards second handle 14, is provided with the length direction along second handle 14 and prolongs in second handle 14 The groove stretched, the opening of groove is towards first handle 13.The of rod-like element 21 it is provided with in the groove of second handle 14 One end, the first end of rod-like element 21 is pivotably connected with second handle 14.It is provided with in the groove of first handle 13 Second end of rod-like element 21 and adjusting screw rod 25, the second end of rod-like element 21 and the first end in contact of adjusting screw rod 25, Adjusting screw rod 25 extends along the length direction of first handle 13 in the groove of first handle 13 makes adjusting screw rod 25 Second end is through the looping pit of the afterbody (i.e. away from the end of jaw) being arranged on first handle 13, until adjusting screw rod Second end of 25 is positioned at the outside of first handle 13.It is provided with in looping pit and the threaded engagement on adjusting screw rod 25 Female thread, the diameter of looping pit is less than the diameter of the second end of adjusting screw rod 25, thus the second end of adjusting screw rod 25 Can not be entered in first handle 13 by looping pit.

Rotate adjusting screw rod 25 and can change the first end of adjusting screw rod 25 position in the groove of first handle 13, Thus adjust the size of the jaw of the first work portion 11 and the formation of the second work portion 12, to adapt to various sizes of folder Object 26.Specifically, the second end of adjusting screw rod 25 is made to move away from the direction of jaw when rotating adjusting screw rod 25 Time, the second end of rod-like element 21 moves along with the jaw that moves away from of the first end of adjusting screw rod 25, rod-like element 21 The first end pull second handle 14 by its junction point 28 with second handle 14, then second handle 14 passes through Its junction point 27 with the second work portion 12 pulls the second work portion 12, due to the second work portion 12 simultaneously by the One axle 17 and the restriction of the second axle 19, therefore the second work portion 12 around the first axle 17 and the second axle 19 away from the first work Make 11 pivots, thus jaw magnifies.Make the second end of adjusting screw rod 25 near jaw when rotating adjusting screw rod 25 When direction is moved, the second end of rod-like element 21 moves along with the jaw that moves close to of the first end of adjusting screw rod 25, bar First end of shape part 21 promotes second handle 14, then second handle by its junction point 28 with second handle 14 14 promote the second work portion 12 by its junction point 27 with the second work portion 12, due to the second work portion 12 simultaneously Being limited by the first axle 17 and the second axle 19, therefore the second work portion 12 is close around the first axle 17 and the second axle 19 First work portion 11 pivots, thus jaw reduces.

In the labor-saving plier of the present embodiment, elastic component 22 is arranged between the second work portion 12 and first handle 13, specifically For, the second work portion 12 is provided with hanging hole 24, in the groove of first handle 13, is provided with hook portion 23, elastic component One end of 22 is limited in hanging hole 24, and the other end is connected with hook portion 23.The elastic component 22 of the present embodiment is spring, It is specially extension spring.

In the labor-saving plier of the present embodiment, in the groove of second handle 14, it is pivotably connected the 3rd handle.3rd handle Length less than the length of second handle 14.3rd handle has elongated end, when the 3rd handle is relative to second handle During 14 pivot, elongated end can be against second handle 14, to stop the 3rd handle to continue relative to second handle 14 pivot Turn.It addition, rod-like element 21 has protuberance 211, when protuberance 211 enters in the groove of second handle 14, Hand-operated tools is locked；Direction towards second handle 14 rotates the 3rd handle, and the elongated end of the 3rd handle can be by shaft-like The protuberance 211 of part 21 is released in the groove of second handle 14, makes labor-saving plier be unlocked.

In the labor-saving plier of the present embodiment, position that the 3rd handle is connected with second handle 14 and rod-like element 21 and second-hand The position 28 that handle 14 connects is separated, and the position 28 being connected with second handle 14 than rod-like element 21 is further from second Work portion 12.Position 28 and the second work portion 12 that rod-like element 21 is connected with second handle are connected with second handle 14 Position 27 be separated.

The labor-saving plier of the present embodiment, when the second work portion 12 away from or near the first work portion 11 time, the first groove 18 Relative to the first axle 17 away from or move and rotate near the first work portion 11, the second axle 19 is at the second groove 20 simultaneously In move closer or far from the first work portion 11 and rotate, this is effectively equivalent to the second work portion 12 around virtual axle center Away from or rotate near the first work portion 11.Virtual axle center herein is imaginary due to the first axle 17 and the second axle 19 Out, this virtual axle center is between the first axle 17 and the second axle 19, and owing to the first axle 17 is relative to the first groove 18 and second axle 19 be mobile relative to the second groove 20, the most virtual axle center is also mobile.But it is the most virtual How axle center moves, with the second axle 19 (movable binding clip and the connecting shaft institute of fixed pliers head in the most existing locking pliers The position at place) compare, virtual axle center closer to jaw, thus compared with existing locking pliers virtual axle center and jaw away from From diminishing.If the moment of torsion of input is constant at the contact point of the first work portion 11 and caught object, i.e. corresponding jaw Moment of torsion is constant, owing to axle center virtual compared with existing locking pliers is less with the distance of jaw, thus the folder that jaw produces Holding force is bigger, i.e. achieves labour-saving effect.

Fig. 8 shows another specific embodiment of the present invention, this embodiment offers a kind of hand-operated tools, exactly A kind of to prevent handle from opening excessive water pump pliers, including first handle 33, second handle the 34, first work portion 31, Second work portion 32, bindiny mechanism of work portion 300, rod-like element 41, place restrictions on mechanism, elastic component 42 and adjusting screw rod 45.Wherein, first handle 33 and the fixing connection in the first work portion 31, both can also be formed as one.Second Handle 34 is connected with the second work portion 32 pivotly.In the present embodiment, bindiny mechanism of work portion 300 uses as front The setting of described twin shaft, i.e. includes the first hole being arranged in the first work portion 31, is arranged on the second work portion 32 On the first groove 38 and run through the first axle 37 of the first hole and the first groove 38；It is arranged in the second work portion 32 Second hole, the second groove 40 being arranged in the first work portion 31 and run through the second hole and the second axle of the second groove 40 39.The jaw that first axle 37 to the second axle 39 is formed closer to the first work portion 31 and the second work portion 32.First Axle 37 can move and rotate in the first groove 38, and the second axle 39 can move and rotate in the second groove 40, Make the second work portion 32 can rotate relative to the first work portion 31 and translate.Wherein the first groove 37 and the second groove 39 is arc groove, it is also possible to for square groove.As alternative embodiment, bindiny mechanism of work portion 300 can also use The setting (the most not shown) of foregoing single shaft, the bindiny mechanism of portion 300 that i.e. works includes being arranged on the first work portion Hole, the groove being arranged in the second work portion 32 on 31 and run through the hole in the first work portion 31 and the second work portion The axle of the groove on 32.If single shaft is arranged, groove can be level trough, skewed slot or arc groove.

In the present embodiment, the second work portion 32 has primary importance and the second position.Second work portion 32 passes through work Bindiny mechanism of portion 300 is connected with the first work portion 31.When second handle 34 is by moving to close away from first handle 33 During first handle 33, bindiny mechanism of work portion 300 makes the second work portion 32 be moved to the second position by primary importance. Herein, the primary importance in the second work portion 32 refers to the second work portion 32 away from position residing during the first work portion 31 Putting, when the second work portion 32 is in the second position, compared with primary importance, the second work portion 32 is relative to first Work portion 31 there occurs rotation and translation.

In the present embodiment, the fit clearance of the first axle 37 and the first hole and the first groove 38 is less than the second axle 39 and the second hole Fit clearance with the second groove 40.In the alternative embodiment of the present embodiment, the first axle 37 and the first hole and The fit clearance of one groove 38 is it can also be provided that equal to or more than between the coordinating of the second axle 39 and the second hole and the second groove 40 Gap.As it was previously stated, the effect arranging two axles is by two axle shared External Force Actings, thus reduce axle Abrasion and the deformation of labor-saving plier, another effect is the size being limited jaw by the second axle 39, the most also limits the simultaneously One handle 33 and second handle 34 are excessive, so that user facilitates implementation one-handed performance.

In the water pump pliers of the present embodiment, in first handle 33, it is provided with the recessed of the length direction extension along first handle 33 Groove, the opening of groove, towards second handle 34, is provided with the length direction along second handle 34 and prolongs in second handle 34 The groove stretched, the opening of groove is towards first handle 33.The of rod-like element 41 it is provided with in the groove of second handle 34 One end, the first end of rod-like element 41 is pivotably connected with second handle 34.It is provided with in the groove of first handle 33 Second end of rod-like element 41 and adjusting screw rod 45, the second end of rod-like element 41 contacts with adjusting screw rod 45.Regulation spiral shell Bar 45 is threaded connection with the afterbody of first handle 33.A part for adjusting screw rod 45 is recessed first handle 33 Extending in groove, another part is placed in the outside of first handle 33.When adjusting screw rod 45 moves relative to first handle 33 Time, adjusting screw rod 45 makes the second end of rod-like element 41 move relative to first handle 33.

In the water pump pliers of the present embodiment, place restrictions on mechanism for placing restrictions on the rod-like element displacement relative to second handle.Place restrictions on machine Mounting hole 491 that structure includes being arranged in the second work portion and be arranged in mounting hole 491 place restrictions on axle 49, rod-like element 41 are pivotably connected with second handle 34 by placing restrictions on axle 49, place restrictions on axle 49 and cooperatively form limit with mounting hole 491 Locking mechanism.When placing restrictions on axle 49 and being towards first handle 33 in mounting hole 491, the first work portion 31 and the second work Make portion 32 to be in and unclamp shape；When placing restrictions on axle 49 and being away from first handle 33 in mounting hole 491, the first work portion 31 and second work portion 32 be in clamping shape.

Being additionally provided with the 3rd handle 50 in the groove of second handle 34, the 3rd handle 50 is connected with second handle 34, And the 3rd handle 50 be connected with the first end of rod-like element 41 by placing restrictions on axle 49.3rd handle 50 and second handle 34 The position 47 that the position 48 connected and second handle 34 are connected with the second work portion 32 is separated, and the 3rd handle 50 The position that the position 48 being connected with second handle 34 and the 3rd handle 50 are connected with rod-like element 41 is separated.Second-hand The length of handle 34 is more than the length of the 3rd handle 50.

In second handle 34 rotation process, rod-like element 41 can cross the 3rd handle with the point being connected of the 3rd handle 50 50 and the company of junction point 48 and junction point 47 composition in second handle 34 and the second work portion 32 of second handle 34 Line, when this line is drawn close and crossed to second handle 34 to first handle 33, the first work portion 31 and the second work portion 32 are clamped；When second handle 34 is away from first handle 33 and when crossing this line, the first work portion 31 and second Work portion 32 is released.

In the water pump pliers of the present embodiment, elastic component 42 is arranged between the second work portion 32 and first handle 33.Specifically Ground, the second work portion 32 is provided with hanging hole 44, first handle 33 is provided with hook portion 43, the one of elastic component 42 End is limited in hanging hole 44, and the other end is connected with the hook portion 43 on first handle 33.Elastic component 42 is spring, It is specially extension spring.

Fig. 9 shows another embodiment of the present invention, this embodiment offers a kind of hand-operated tools, is specifically one Plant self-adjusting water pump clamp, including first handle 53, the 51, second work portion 52 of second handle the 54, first work portion, work Zuo Bu bindiny mechanism 400, rod-like element 61, slide mechanism 64, retaining mechanism and governor motion.Wherein, first handle 53 and first work portion 51 fixing connect, both can also be integrally formed.Second handle 54 pivotly with the second work Make portion 52 to connect.

In the present embodiment, bindiny mechanism of work portion 400 uses the setting of foregoing twin shaft, i.e. includes being arranged on The first hole, the first groove 58 being arranged in the second work portion 52 in one work portion 51 and run through the first hole and first First axle 57 of groove 58；Be arranged on the second hole in the second work portion 52, be arranged in the first work portion 51 Two grooves 60 and run through the second axle 59 of the second hole and the second groove 60.First axle 57 to the second axle 59 is closer to first The jaw that work portion 51 and the second work portion 52 are formed.First axle 57 can move and rotate in the first groove 58, And second axle 59 can move and rotate in the second groove 60, make the second work portion 52 can be relative to the first work portion 51 rotate and translate.Wherein the first groove 58 and the second groove 60 are arc groove, it is also possible to for square groove.As replacing The embodiment in generation, bindiny mechanism of work portion 400 can also use the setting (the most not shown) of foregoing single shaft, The bindiny mechanism of portion 400 that i.e. works includes the hole being arranged in the first work portion 51, is arranged in the second work portion 52 Groove and run through the hole in the first work portion 51 and the axle of the groove in the second work portion 52.If single shaft is arranged, groove can Think level trough, skewed slot or arc groove.

In the present embodiment, the second work portion 52 has primary importance and the second position.Second work portion 52 passes through work Bindiny mechanism of portion 400 is connected with the first work portion 51.When second handle 54 is by moving to close away from first handle 53 During first handle 53, bindiny mechanism of work portion 400 makes the second work portion 52 be moved to the second position by primary importance. Herein, the primary importance in the second work portion 52 refers to the second work portion 52 away from position residing during the first work portion 51 Putting, when the second work portion 2 is in the second position, compared with primary importance, the second work portion 52 is relative to the first work Make portion 51 and there occurs rotation and translation.

In the present embodiment, the fit clearance of the first axle 57 and the first hole and the first groove 58 is less than the second axle 59 and the second hole Fit clearance with the second groove 60.In the alternative embodiment of the present embodiment, the first axle 57 and the first hole and The fit clearance of one groove 58 is it can also be provided that equal to or more than between the coordinating of the second axle 59 and the second hole and the second groove 60 Gap.As it was previously stated, the effect arranging two axles is by two axle shared External Force Actings, thus reduce axle Abrasion and the deformation of labor-saving plier, another effect is the size being limited jaw by the second axle 59.

In the present embodiment, slide mechanism 64 is slidably mounted on first handle 53, and one end of rod-like element 61 can pivot Turning ground to be connected with second handle, the other end is pivotally mounted on slide mechanism.Rod-like element 61 and slide mechanism 64 The one end connected is made up of curved section, and the curved section ratio of curvature of close first handle 53 is away from the song of first handle 53 Line segment curvature is big.

Retaining mechanism is pacified slidably and is forwarded on first handle 53, and is positioned at slide mechanism 64 near first handle 53 Distal side.Far-end herein refers to the one end away from jaw.Retaining mechanism includes guide rod 67 and locking plate 68, leads Bar 67 is arranged on first handle 53 and is located on locking plate 68.Locking plate 68 is multi-disc, and multi-disc locking plate 68 is affixed mutually Close.The cross section of guide rod 67 is fillet trapezoid, and the centre of locking plate 68 has the hole passed for guide rod 67, and this hole is set Being set to have the fillet trapezoid identical with the shape of cross section of guide rod 67, guide rod 67 and locking plate 68 are matched in clearance.

In the present embodiment, governor motion is arranged on guide rod 67, between slide mechanism and retaining mechanism, regulates machine Structure is configured to can be subjected to displacement on the length direction of guide rod 67.When governor motion is towards the either end of guide rod 67 Reaching maximum displacement, when the water pump pliers of the present embodiment is locked, one end that rod-like element 61 is connected with slide mechanism is all Can contact with governor motion.

Specifically, governor motion includes regulating screw 66 and carrier 65, and carrier 65 is arranged on guide rod 67, regulation Screw 66 is arranged on carrier 65, and relative to carrier 65, the displacement along guide rod 67 direction can occur.Carrier 65 Cross section identical with the cross section of locking plate 68, and have and locking plate 68 shape size in the position identical with locking plate 68 Identical hole, guide rod 67 is through the hole on carrier 65.

In the present embodiment, being provided with groove in second handle 54, the opening of groove is towards first handle 53, second handle 54 Groove in be pivotably connected the 3rd handle 69.3rd handle 69 has elongated end, when the 3rd handle 69 relative to When second handle 54 pivots, elongated end can be against second handle 54, to stop the 3rd handle 69 to continue relative to Two handles 54 pivot.It addition, rod-like element 61 has protuberance 511, when the protuberance 511 in rod-like element 61 enters Time in the groove of second handle 54, water pump pliers is locked；Direction towards second handle 54 rotates the 3rd handle 69, elongated Protuberance 511 can be released in the groove of second handle 54 by end, makes water pump pliers be unlocked.

The self-adjusting water pump clamp of the present embodiment also includes the elastic component 62 being arranged between the second work portion and first handle, tool For body, the second work portion 52 is provided with hanging hole 64, in the groove of first handle 53, is provided with hook portion 63, elastic One end of part 62 is limited in hanging hole, and the other end is connected with hook portion 63.The elastic component 62 of the present embodiment is spring, It is specially extension spring.

The preferred embodiment of the present invention described in detail above.Should be appreciated that those of ordinary skill in the art without Need creative work just can make many modifications and variations according to the design of the present invention.Therefore, all in the art Technical staff the most on the basis of existing technology can by logical analysis, reasoning, or a limited experiment With the technical scheme obtained, all should be in the protection domain being defined in the patent claims.

Claims

1. a hand-operated tools, it is characterised in that including:

2. hand-operated tools as claimed in claim 1, it is characterised in that bindiny mechanism of described work portion includes being arranged on Hole, the groove being arranged in described second work portion in described first work portion and run through in described first work portion The axle of the groove on hole and described second work portion；Described axle can move in described groove and rotate, and makes described second work The portion of work can rotate relative to described first work portion and translate.

3. hand-operated tools as claimed in claim 1, it is characterised in that bindiny mechanism of described work portion includes being arranged on Hole, the groove being arranged in described first work portion in described second work portion and run through in described second work portion The axle of the groove on hole and described first work portion；Described axle can move in described groove and rotate, and makes described second work The portion of work can rotate relative to described first work portion and translate.

4. hand-operated tools as claimed in claim 2 or claim 3, it is characterised in that described groove is level trough, skewed slot or circle Arc groove.

5. hand-operated tools as claimed in claim 1, it is characterised in that bindiny mechanism of described work portion includes:

6. hand-operated tools as claimed in claim 1, it is characterised in that bindiny mechanism of described work portion includes:

7. the hand-operated tools as described in claim 5 or 6, it is characterised in that described first axle and described first hole and The fit clearance of described first groove is more than, joining less than or equal to described second axle and described second hole and described second groove Close gap.

8. the hand-operated tools as described in claim 5 or 6, it is characterised in that described first groove is arc groove or square groove.

9. the hand-operated tools as described in claim 5 or 6, it is characterised in that described second groove is arc groove or square groove.

10. a hand-operated tools, it is characterised in that including:

11. hand-operated tools as claimed in claim 10, it is characterised in that bindiny mechanism of described work portion includes arranging Hole, the groove being arranged in described second work portion in described first work portion and run through in described first work portion Hole and described second work portion on the axle of groove；Described axle can move in described groove and rotate, and makes described second Work portion can rotate relative to described first work portion and translate.

12. hand-operated tools as claimed in claim 10, it is characterised in that bindiny mechanism of described work portion includes arranging Hole, the groove being arranged in described first work portion in described second work portion and run through in described second work portion Hole and described first work portion on the axle of groove；Described axle can move in described groove and rotate, and makes described second Work portion can rotate relative to described first work portion and translate.

13. hand-operated tools as described in claim 11 or 12, it is characterised in that described groove is level trough, skewed slot Or arc groove.

14. hand-operated tools as claimed in claim 10, it is characterised in that bindiny mechanism of described work portion includes:

15. hand-operated tools as claimed in claim 10, it is characterised in that bindiny mechanism of described work portion includes:

16. hand-operated tools as described in claims 14 or 15, it is characterised in that described first axle and described first The fit clearance of hole and described first groove is less than, greater than or equal to described second axle and described second hole and described second groove Fit clearance.

17. hand-operated tools as described in claims 14 or 15, it is characterised in that described first groove be arc groove or Square groove.

18. hand-operated tools as described in claims 14 or 15, it is characterised in that described second groove be arc groove or Square groove.

19. hand-operated tools as claimed in claim 10, it is characterised in that described hand-operated tools also includes being arranged on institute State the elastic component between the second work portion and described first handle.

20. hand-operated tools as claimed in claim 19, it is characterised in that be provided with hanging hole in described second work portion, Being provided with hook portion on described first handle, one end of described elastic component is limited in described hanging hole, and the other end is with described Hook portion connects.

21. hand-operated tools as claimed in claim 10, it is characterised in that described hand-operated tools also includes adjusting screw rod, Described adjusting screw rod is threaded connection with the afterbody of described first handle.

22. hand-operated tools as claimed in claim 21, it is characterised in that described rod-like element has the first end and second End, the first end of described rod-like element is pivotably connected with described second handle, and the second end of described rod-like element is with described First handle is pivotably connected and against described adjusting screw rod.

23. hand-operated tools as claimed in claim 22, it is characterised in that when described adjusting screw rod is relative to described When one handle moves, described adjusting screw rod makes the second end of described rod-like element move relative to described first handle.

24. hand-operated tools as claimed in claim 21, it is characterised in that be provided with groove, groove in described first handle Opening towards described second handle.

25. hand-operated tools as claimed in claim 24 a, it is characterised in that part for described adjusting screw rod is described Extending in the groove of first handle, another part is placed in the outside of described first handle.

26. hand-operated tools as claimed in claim 10, it is characterised in that be provided with groove, groove in described second handle Opening towards described first handle.

27. hand-operated tools as claimed in claim 26, it is characterised in that in the groove of described second handle pivotly Connect and have the 3rd handle.

28. hand-operated tools as claimed in claim 27, it is characterised in that the length of described 3rd handle is less than described The length of second handle.

29. hand-operated tools as claimed in claim 27, it is characterised in that described 3rd handle has elongated end, when When described 3rd handle pivots relative to described second handle, described elongated end can be against described second handle, with resistance The most described 3rd handle continues to pivot relative to described second handle.

30. hand-operated tools as claimed in claim 29, it is characterised in that described rod-like element has protuberance, works as institute State protuberance enter described second handle groove in time, described hand-operated tools be locked；Direction towards described second handle Rotating described 3rd handle, described protuberance can be released in the groove of described second handle by described elongated end, makes institute State hand-operated tools to be unlocked.

31. hand-operated tools as claimed in claim 27, it is characterised in that described 3rd handle and described second handle The position that the position connected and described rod-like element are connected with described second handle is separated, and than described rod-like element with described The position that second handle connects is further from the second work portion.

32. hand-operated tools as claimed in claim 31, it is characterised in that described rod-like element is with described second handle even The position that the position connect and described second work portion are connected with described second handle is separated.

33. 1 kinds of hand-operated tools, it is characterised in that including:

34. hand-operated tools as claimed in claim 33, it is characterised in that described in place restrictions on mechanism and include being arranged on described Mounting hole in second work portion and the axle of placing restrictions on being arranged in described mounting hole, described rod-like element pass through described in place restrictions on axle Be pivotably connected with described second handle, described in place restrictions on axle and described mounting hole cooperatively form described in place restrictions on mechanism.

35. 1 kinds of hand-operated tools, it is characterised in that including:

36. hand-operated tools as claimed in claim 35, it is characterised in that described rod-like element is with described slide mechanism even The one end connect is made up of curved section, and the curved section ratio of curvature of close described first handle is away from the song of described first handle Line segment curvature is big.

37. hand-operated tools as claimed in claim 35, it is characterised in that described hand-operated tools also includes retaining mechanism, Described retaining mechanism is pacified slidably and is forwarded on described first handle, and is positioned at described slide mechanism near described first-hand The distal side of handle.

38. hand-operated tools as claimed in claim 37, it is characterised in that described retaining mechanism includes guide rod and locking plate, Described guide rod is arranged on described first handle and is located on described locking plate.

39. hand-operated tools as claimed in claim 38, it is characterised in that the cross section of described guide rod is fillet trapezoid, The centre of described locking plate has for described guide rod through hole, and described hole is arranged to have the cross section shape with described guide rod The fillet trapezoid that shape is identical, described guide rod and described locking plate are matched in clearance.

40. hand-operated tools as claimed in claim 35, it is characterised in that described governor motion is arranged on described guide rod On, between described slide mechanism and described retaining mechanism, described governor motion is configured to the length at described guide rod Degree can be subjected to displacement on direction.

41. hand-operated tools as claimed in claim 40, it is characterised in that described governor motion is configured to, and works as institute State governor motion and reach maximum displacement towards the either end of described guide rod, when described hand-operated tools is locked, described One end that rod-like element is connected with described slide mechanism can contact with described governor motion.

42. hand-operated tools as claimed in claim 40, it is characterised in that described governor motion include regulate screw and Carrier, described carrier is arranged on described guide rod, and described regulation screw is installed on the carrier, and can be relative to institute State carrier and the displacement along described guide rod direction occurs.