CN101543981A

CN101543981A - Adjustable wrench capable of returning quickly

Info

Publication number: CN101543981A
Application number: CN200910050467A
Authority: CN
Inventors: 童立云
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-04-30
Filing date: 2009-04-30
Publication date: 2009-09-30

Abstract

The invention relates to an adjustable wrench capable of returning quickly without withdrawing, which belongs to a hand tool. The wrench comprise a handle (1), a short jaw (2), an inner jaw (3), a corresponding translational inner jaw (4), a translational long jaw (5), an idling returning gap (6), an adjusting worm (7) and a screw gear (8). The length of an interlocking part (from A to B) of a maximum size nut which can be pulled by the adjustable wrench is between 1/3 and 1/2 of that of a straight flange of a corresponding nut, the long jaw (2) is provided with the idling returning gap (6) which has a vertical distance of between 1 and 3 millimeters with the straight flange of the corresponding nut, and two inner tongs edges of BC and DE are inosculated with two corresponding edges of a nut with different sizes when the jaws are opened and closed. For nuts with different sizes, the opening and closing strokes of the jaws of the adjustable wrench are not more than 2 millimeters, and the adjustable wrench has the advantages of simple operation, natural continuity, turning function similar to a ratchet wrench, and working efficiency higher than that of the prior adjustable wrench.

Description

But a kind of monkey wrench of returning quickly

The present invention need not withdraw from the monkey wrench that gets final product returning quickly for a kind of, belongs to hand tools.

At present, known monkey wrench does not have the corresponding different size hexagonal (hexagon)nut internal clamp port design that coincide.During existing monkey wrench, is to block the corresponding both sides work done of hexagonal (hexagon)nut in operation, yet can not maloperation occur through regular meeting from return location exactly when rotating spanner; Hexagonal (hexagon)nut is about 1.15 times of its corresponding two edge lengths by the diagonal angle length at its center, existing monkey wrench is when the degree of tightness nut, be corresponding more than 1.15 times of two edge lengths of rotary worm control spiral shell wheel loosen nut mostly, or withdraw from nut with jaw heavily block return again the row pull, for the nut more than the 24mm, existing monkey wrench must just can make jaw have enough return spaces by twice above spiral shell wheel that rotates, existing monkey wrench is when the nut of its maximum and inferior specification greatly of degree of tightness, jaw can only be withdrawed from nut and heavily block return, this shows that existing monkey wrench operating efficiency is not high.

In order to overcome the deficiency of existing monkey wrench, the objective of the invention is to release a kind of need not withdrawing from and get final product the monkey wrench of return quickly and accurately.Thereby the present invention is by adjusting the ratio formation semi open model return jaw structure of jaw and the nut length of side, in conjunction with open identical internal clamp port and with the alligator pliers mouth on organic coupling in idling return gap to realize purpose of the present invention.

The invention has the beneficial effects as follows that to the nut of degree of tightness different size, jaw folding stroke all is no more than 2mm, and is simple to operate, link up naturally that have the revolute function of similar ratchet spanner, its work efficiency is higher than existing monkey wrench.

The present invention is further described below in conjunction with drawings and Examples.

This spanner is showed with 8 figure:

Fig. 1 is the shape of this spanner.

Fig. 2 to Fig. 6 is shorter than 4/10 o'clock operation principle of corresponding nut straight flange at short jaw (2) for this spanner.Arrow is depicted as the force direction that is subjected to of spanner among the figure.

Fig. 7 to Fig. 8 is this spanner idling return schematic diagram when short jaw (2) is longer than corresponding nut straight flange.

As shown in Figure 1, this spanner can be divided into handle (1) by its shape and function, short jaw (2), internal clamp port (3), internal clamp port (4) With alligator pliers mouth (5), idling return gap (6), regulate worm screw (7), spiral shell wheel (8) can be pulled maximum specification with monkey wrench Nut occlusion portion (A to B) length is 1/3 to 1/2 of corresponding nut straight flange, and a span is arranged on the alligator pliers mouth (2), and (E extremely F) identical with (A to B) length, with the idling return gap (6) of corresponding nut straight flange vertical range 1 to 3mm, internal clamp port (3) BC, internal clamp port (4) DE can match with the corresponding edge of different size hexagonal (hexagon)nut when the jaw folding.

The specific embodiment

When using spanner to pull nut, spanner is subjected to clockwise power, short jaw (2), and internal clamp port (3), four limits of internal clamp port (4) and alligator pliers mouth (5) screens nut are pulled (see figure 2) with nut toward clockwise direction.During return, following three kinds of situations are arranged:

1 when short jaw (2) be shorter than corresponding nut straight flange 4/10 the time can unclamp 0.1mm to 1.5mm left and right sides jaw, cooperate the existing dark idling return gap idling return of 2mm.Spanner is subjected to anticlockwise power, short jaw (2) and corresponding nut occlusion portion length (A to B) are owing to be shorter than 1/2 of the hexagonal (hexagon)nut length of side, can not block nut, add the cooperation in the idling return gap (6) on the alligator pliers mouth (5), when the spanner return, do not block the nut corner angle, idle running requirement when having satisfied the spanner return makes the spanner idling return to position shown in Figure 4 like this, and nut can the power of being pulled not rotate.When the spanner return arrived position shown in Figure 5, because spanner is subjected to the power to the nut direction, spanner was made use of momentum and is moved to position shown in Figure 6.Short jaw (2), alligator pliers mouth (5) and two internal clamp ports block nut.Firmly just can continue to screw nut more in the direction of the clock.In like manner block nut and exert oneself, just nut can be unclamped toward counter-clockwise direction if make the length jaw change a position spanner upset 180.

2 are shorter than corresponding nut straight flange but 4/10 o'clock of being longer than at short jaw (2), remove and must unclamp jaw 0.5mm to 2mm when return, must close when pulling nut outside the clencher mouth, and other are identical with Fig. 2 to Fig. 6.

3 when short jaw (2) be longer than corresponding nut straight flange 4/10 the time, can unclamp 0.5mm to 2mm left and right sides jaw, cooperate the existing dark idling return gap idling return (seeing Fig. 7 to Fig. 8) of 2mm.

From Fig. 2 to Fig. 8 as can be seen, this spanner has the revolute function of similar ratchet spanner, and its work efficiency must be higher than the current activity spanner.

Claims

1. one kind need not be withdrawed from the monkey wrench that gets final product returning quickly, comprise handle (1), short jaw (2), internal clamp port (3), internal clamp port (4) and alligator pliers mouth (5), worm screw (7) is regulated in idling return gap (6), worm screw control runner (8), it is characterized in that it is 1/3 to 1/2 of corresponding nut straight flange that short jaw (2) and monkey wrench can be pulled maximum specification nut occlusion portion (A to B) length, idling return gap (6) with corresponding nut straight flange vertical range 1 to 3mm is arranged on the alligator pliers mouth (5), internal clamp port (3) BC is when the jaw folding, can coincide with the corresponding edge of different size hexagonal (hexagon)nut, internal clamp port (4) DE can coincide with the corresponding edge of the hexagonal (hexagon)nut of different size when the jaw folding.