CN203330936U - Monkey spanner - Google Patents

Abstract

A monkey spanner comprises a handle (1) and a spanner head (2) for screwing a nut. The spanner head (2) and the handle (1) are connected together. The monkey spanner is characterized in that the spanner head (2) comprises a spanner head block (21) and a spanner head sleeve (22), the spanner head sleeve (22) and the nut can be buckled in a sleeved mode, an arc through hole (3) is formed in the axial direction in the middle of the spanner head block (21), the outer periphery face of the spanner head sleeve (22) is in an arc shape matched with the shape of the through hole (3), and the spanner head block (21) and the spanner sleeve (22) are rotatably connected together through shafts (4) on the two sides. Compared with the prior art, the monkey spanner has the advantages that the spanner head sleeve can rotate, moment is generated from different angles, the monkey spanner can be suitable for fastening some special connecting structures, structure is simple, and application range is wide.

Description

Monkey wrench

Technical field

The utility model relates to a kind of spanner manufacture technology field, especially refers to a kind of monkey wrench.

background technology

In people's daily life; often can need to twist opening or the trepanning firmware that bolt, screw, nut and other screw threads are tightly held bolt or nut; apply the external force shank and apply external force and spanner is shaped with clamp holder section by the one or both ends at shank, just can easily help people to twist opening or trepanning that bolt or nut are held bolt or nut.Existing a kind of application number is CN93235008.9, the Chinese utility model patent that name is called " a kind of Multifunctional bearing spanner " discloses a kind of structure, it is to adopt steel plate stamping to be pressed into hexagonal cheese in cylindrical by upper base movable sleeve and the movable sleeve of going to the bottom, on interior hexagonal cheese top, car has a loose slot and model base tub, race ring is installed, one row's fixed teeth and digital model plate are arranged on race ring, in interior hexagonal cheese, activity template is housed, then they are assembled in exterior ring cap and form, spanner structure is simple, multi-functional, effectively reduce labour intensity.Yet the trepanning of this spanner can not rotate, more inconvenient while twisting nut, therefore, so its structure needs to do to improve further.

summary of the invention

Technical problem to be solved in the utility model is for above-mentioned prior art present situation, to provide a kind of spanner cover energy movable monkey wrench.

The utility model solves the problems of the technologies described above adopted technical scheme: this monkey wrench, comprise handle, for the spanner of fastening nut, described spanner and handle link together, it is characterized in that: described spanner comprises the spanner piece, can axially be provided with circular-arc through hole with the spanner cover of nut phase hitch, the middle part of described spanner piece, suitable circular-arc of the outer peripheral face of described spanner cover and the shape of through hole, what described spanner piece and the spanner cover axle by both sides can rotate links together.

As improvement, the outer peripheral face of spanner cover can be preferably spheric, and the through hole suitable with it is also spheric.

As improvement, handle can be preferably and comprise handle one and handle two, and an end of described handle one and wrench piece are movably connected and connect, and the bottom of described handle one can move up and down and is inserted in handle two.

As improvement, handle can be preferably and comprise handle one and handle two, and an end of described handle one and wrench piece are movably connected and connect, and the bottom of described handle one can move up and down and is inserted in handle two.

Compared with prior art, the utility model adopt spanner with the spanner piece, can axially be provided with circular-arc through hole with the spanner cover of nut phase hitch, the middle part of described spanner piece, suitable circular-arc of the outer peripheral face of described spanner cover and the shape of through hole, described spanner piece and spanner cover turn and can be rotatably connected by the axle on both sides.The utility model has the advantage of that the spanner cover can rotate, just more convenient, more flexible while being placed on nut, and of the present utility model simple in structure, easy to operate, there is good practicality.

The accompanying drawing explanation

The stereogram that Fig. 1 is the utility model embodiment;

The three-dimensional exploded view that Fig. 2 is Fig. 1;

The top view that Fig. 3 is Fig. 1;

The A-A face cutaway view that Fig. 4 is Fig. 3.

The specific embodiment

Below in conjunction with accompanying drawing, embodiment is described in further detail the utility model.

As shown in Figures 1 to 4, this is a kind of spanner, comprise handle 1, for the spanner 2 of fastening nut, described spanner 2 links together with handle 1, described spanner 2 comprises spanner piece 21, can axially be provided with circular-arc through hole 3 with the spanner cover 22 of nut phase hitch, the middle part of described spanner piece, suitable circular-arc of the outer peripheral face of described spanner cover 22 and the shape of through hole 3, described spanner piece 21 and spanner overlap linking together that 22 axles by both sides 4 can rotate.

Shown in Fig. 2, axially there is the through hole 3 of the dome shape of a larger aperture at spanner piece 21 middle parts, and its size can hold spanner cover 22 just, and the inner wall smooth of manhole 3, be concavity circular arc, can overlap with spanner 22 convex arc surface laminating.And have symmetrically two axis holes 23 that size is identical centered by handle 1 place, junction axis is the axis of 90 degree and spanner piece piece wall intersection point, axis hole is through hole, can pass through axle 4, and axle 4 is when the interior rotation of axis hole 23, do not swing, on spanner cover 22, correspondence position has identical axis hole 23.Axle 4 is by spanner piece 21, and spanner cover 22 is connected to integral body.

Shown in Fig. 3, handle 1 is connected with spanner 2 one, and handle 1 is comprised of two parts, handle 1 and handle 2 12, and handle 2 12 diameters are larger, inner hollow, handle 1 can move down, and enters handle 2 12 inside.Thereby handle 1 is with retractility.

Shown in Fig. 2 and Fig. 4, spanner overlaps 22 centers coordinating block 24, and coordinating block 24 is interference fit or integrative-structure with spanner cover 22, there is through hole 5 in coordinating block 24 central authorities, through hole 5 is square, and visible coordinating block is replaceable module, as required the profile of adjusting hole.

Claims (3)

1. a monkey wrench, comprise handle (1), for the spanner (2) of fastening nut, described spanner (2) links together with handle (1), it is characterized in that: described spanner (2) comprises spanner piece (21), can axially be provided with circular-arc through hole (3) with the spanner cover (22) of nut phase hitch, the middle part of described spanner piece (21), suitable circular-arc of the shape of the outer peripheral face of described spanner cover (22) and through hole (3), what described spanner piece (21) and spanner cover (22) axle (4) by both sides can rotate links together.

2. monkey wrench according to claim 1, it is characterized in that: the outer peripheral face of described spanner cover (22) is spheric, and the through hole suitable with it (3) is also spheric.

3. monkey wrench according to claim 2, it is characterized in that: described handle (1) is for comprising handle one (11) and handle two (12), one end of described handle one (11) and wrench piece (21) are movably connected and connect, and the bottom of described handle one (11) can move up and down and is inserted in handle two (12).

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