CN2678831Y

CN2678831Y - Power saving double offset ring spanner

Info

Publication number: CN2678831Y
Application number: CN 200420030705
Authority: CN
Inventors: 李强
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-03-08
Filing date: 2004-03-08
Publication date: 2005-02-16
Anticipated expiration: 2014-03-08

Abstract

The utility model discloses a power saving double offset ring spanner, comprising a spanner handle and a driving head; the spanner handle is an elongated rod with two flat circular ring-shaped ends, a cycle of ratchet bars are arranged on a side of the circular ring, the circular ring ratchet bars on the two ends are arranged on the two sides of the spanner handle, and the ratchet bars on the two ends are in an opposite direction. The driving head is in a tubular structure with a thick end and a fine end, the ring teeth are arranged on the inner side of the thick end provided with the ratchet bars on the rear part corresponding to the spanner handle, and the external diameter of the fine end is adapted to an annular aperture of the spanner handle, with a notch on a tail section of the fine end. The tail section of the fine end of the driving head penetrates through the circular ring of the spanner handle, a spring is arranged on the external side of the fine end of the driving head, and the outer end of the spring is clamped in the notch of the tail section of the driving head to fix the driving head to the spanner handle. The utility model has the advantages that the structure is simple, the implementation is easy, the service life is long, with energy saving and time saving; the utility model with a through-hole in the center of the driving head adapts to a bolt with long rod; the utility model with bigger ratchet bar can bear heavy load.

Description

Laborsaving double offset ring spanner

One, technical field

The utility model belongs to instrument manufacturing technology field, is specifically related to a kind of double offset ring spanner.

Two, background technology

Double offset ring spanner (being commonly called as " glasses " spanner) is installation, the most frequently used instrument of repairing trades.But existing double offset ring spanner needs to twist and lifts down when the practical operation parbuckle screw, puts again, and so circulation is not only time-consuming but also require great effort.Quick box spanner in the market can solve the problem of changing hands, but it also comes with some shortcomings, and the one, the sleeve inboard of box spanner is a blind end, bolt of long stem just can't use box spanner; The 2nd, quick box spanner is the handle ratchet wheel structure, and it relies on inner a thousand pieces of gold to block ratchet cog and conversion direction, and the cog of ratchet and a thousand pieces of gold is all less, is the consumable accessory in the instrument, is easy to be ground bald in actual the use.

Three, summary of the invention

The purpose of this utility model provides a kind of laborsaving double offset ring spanner, and it does not need to change hands in manipulating, and can tighten and unload screw fast, and long service life.Laborsaving double offset ring spanner comprises spanner handle and spanner, and it is made of spanner handle and spanner assembling, and spanner handle is an elongate rod, two ends is flat circular, the one side of annulus has all ratchets, and the annulus ratchet at two is in the both sides of spanner handle, and two ends ratchet direction is opposite; Spanner is the thin tubular structure of the thick end of an end, and there is the plum blossom tooth its butt end inboard, and the butt end rear portion has and the corresponding ratchet of spanner handle, carefully holds the annular distance of external diameter and spanner handle to adapt, and afterbody is fluted; During assembling with the ratchet of the ratchet of spanner and spanner handle annulus to together, the afterbody of the thin end of spanner passes the annulus of spanner handle, carefully holds the outside to set up spring at spanner, the outer end of spring is stuck in the groove of spanner afterbody, and spanner and spanner handle are fixed together.

In the work, during tight screw, use the forward spanner, when pulling clockwise, the ratchet of spanner and spanner handle tightens, and the plum blossom tooth of spanner is tightly lived screw; When pulling counterclockwise, the ratchet of spanner and spanner handle mutually mutual exclusion from, with the spring compression of spanner afterbody, spanner handle and spanner relatively rotate, and screw can not driven.When loosening the screw a little, use reverse spanner, its course of work is identical with the forward spanner.

The utility model is simple in structure, implements easily, and it is time saving and energy saving to use, and the life-span is long.Because there is open-work at the spanner center, also can use bolt of long stem.Ratchet is bigger, can bear heavy load.

Four, description of drawings

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is the structural representation of spanner handle;

Fig. 3 is the structural representation of forward spanner;

Fig. 4 is the structural representation of reverse spanner.

Five, the specific embodiment

Laborsaving double offset ring spanner is made of spanner handle 1, spanner 2 and spring 3 assemblings, and there are all plum blossom teeth 4 the butt end inboard of spanner 2.The two ends of spanner handle 1 are equipped with forward spanner and reverse spanner respectively, the ratchet of forward spanner is oriented counterclockwise, oppositely the ratchet of spanner is oriented clockwise direction, and the ratchet of forward spanner and reverse spanner is corresponding with the ratchet of the annulus side at spanner handle 1 two ends respectively.The thin end of spanner 2 is inserted in the annulus of spanner handle, and spanner 2 afterbodys that pass from annulus block with spring 3, and the rear end of spring 3 is stuck in the groove of spanner 2 afterbodys.

Claims

1, a kind of laborsaving double offset ring spanner, comprise handle and spanner, it is characterized in that: it is made of spanner handle (1) and spanner (2) assembling, spanner handle (1) is an elongate rod, two ends is flat circular, the one side of annulus has all ratchets, and the annulus ratchet at two is in the both sides of spanner handle, and two ends ratchet direction is opposite; Spanner (2) is the thin tubular structure of the thick end of an end, and there is the plum blossom tooth its butt end inboard, and the butt end rear portion has and the corresponding ratchet of spanner handle (1), carefully holds the annular distance of external diameter and spanner handle (1) to adapt, and afterbody is fluted; The afterbody of the thin end of spanner (2) passes the annulus of spanner handle (1), sets up spring (3) in the thin end of spanner (2) outside, and the outer end of spring (3) is stuck in the groove of spanner (2) afterbody, and spanner (2) and spanner handle (1) are fixed together.