CN201744941U

CN201744941U - Elastic wrench

Info

Publication number: CN201744941U
Application number: CN200920353497XU
Authority: CN
Inventors: 温建
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-12-28
Filing date: 2009-12-28
Publication date: 2011-02-16
Anticipated expiration: 2019-12-28

Abstract

An elastic wrench comprises a first wrench head, a vertical connecting rod of the first wrench head, a second wrench head and a handle; the utility model is characterized in that: the elastic wrench also comprises a spring, slot holes are axially machined on the second wrench head and the handle, the connecting rod runs through the slot holes, and the spring is connected between the connecting rod and the handle. The handle is hinged with the second wrench head, the hinge lug is close to one side of the connecting rod, and the edge close to the side is arc-shaped. The wrench jaw of the elastic adjustable wrench axially moves along the handle, and the opening amplitude is large; the radial size of the wrench head is small, so the elastic wrench is convenient for narrow and small spaces with poor light; the wrench jaw can automatically adapt to the thicknesses of workpieces and can restore elastically, the manual adjustment is avoided during operation and the wrench has no need to separate from the workpieces; the wrench heads are avoided from loosening, sliding and damaging workpieces, dropping and injuring hands; and the structure of the elastic wrench is applicable to wrenches and pipe tongs. The elastic wrench has the advantages of strong generality, good adaptability, flexible operation, low cost and wide application range.

Description

The elasticity spanner

Technical field the utility model relates to manual rotating tool, and particularly a kind of flexible adjustment is pulled the monkey wrench of mouth.

The Worm Wrench that background technology is generally used is at present pulled mouthful many usefulness of a big or small tool because of regulating, and still occupies half of the country, spanner market so far.But there is following defective in this Worm Wrench:

A) governor motion places Wrench head, holds afterbody during turn, and it is frequent to change hands, and the amplitude of accommodation is difficult to accurately by rule of thumb, and sight line is bad or the small space use is limited;

B) when work spanner that frame takes place easily is moving, cause to pull mouthful to skid, damage workpiece, even come off, hinder hand;

C) spanner need break away from station during the turn backhaul, handles loaded down with trivial details;

D) spanner is for handle and moves radially, and its amplitude is limited by radial dimension, so versatility is poor, and specification is various;

E) governor motion stress is concentrated easy to wear.

For this reason, industry proposes many improvement projects, does not set up an organization, pulls bore to the old road of moving but break away from head mostly, and above-mentioned defective is not effectively solved.

Ratchet spanner can loaded work piece, unloaded backhaul, and the head volume I is used for the bad or small space of sight line, but changes head for bolt, the nut workpiece action need of different size.

Utility model content the purpose of this utility model is to solve above-mentioned technological deficiency, and a kind of collection Worm Wrench and ratchet spanner advantage are provided, and flexible adjustment is pulled the monkey wrench of mouth.

Technical solution of the present utility model is: spanner prolongs handle and moves axially, and elasticity connects between the two, utilizes torsion lock ring spanner during load, and spanner changes and resilient movement with the workpiece thickness during backhaul.

Technical characterictic of the present utility model is: a kind of elasticity spanner, it comprises: first spanner (1) and vertical links (2) thereof, second spanner (3) and handle (4), it is characterized in that: also comprise a spring (5), wherein, second spanner (3) and handle (4) axially have slotted eye, connecting rod (2) runs through wherein, and spring (5) is connected between connecting rod (2) and the handle (4).

Described handle (4) is hinged with second spanner (3), and its hinged ear (6) is near a side of connecting rod (2), and close edge is curved.

Described first spanner (1) thickness is slightly larger than second spanner (3).

Described first spanner (1) and second spanner (3) are the linear plane contact for workpiece, also can be the contact of camber line shape dentation.

The elasticity spanner of structure like this, the operator holds all the time in the handle afterbody, and first spanner is hooked workpiece, and extension spring makes second spanner enter station; When handle centered on workpiece to the turn of spanner opening direction, its torsion was fulcrum with the jointed shaft, acts radially on the connecting rod by hinged ear, and connecting rod has been stoped moving axially of first spanner by the handle and the second spanner lock ring, and spanner drives the workpiece turn; When the contrary opening direction turn of handle, hinged ear leaves connecting rod, and above-mentioned lock ring effect disappears, and first spanner changes and the elasticity backhaul with the workpiece thickness, also can make spanner be best painstaking angle for workpiece by elastic force.

The beneficial effects of the utility model are:

1, pull and mouthful prolong handle and move axially, its opening amplitude is big, highly versatile;

2, the spanner radial dimension is little, is convenient to the bad or small space use of sight line, and adaptability is good;

Adapt to voluntarily that the workpiece thickness changes and the elasticity backhaul but 3, pull mouth, the adjusting of need not changing hands of operation overall process also need not break away from workpiece;

4, big more its spanner lock ring effect of handle torsion is strong more, can avoid the spanner frame moving cause skid, damage workpiece, come off and hinder hand;

5, this structure can be used for spanner, also can be used for pipe wrench.

Description of drawings

Fig. 1 is an elasticity spanner structure schematic diagram.

Fig. 2 is an elasticity spanner assembling schematic diagram.

Fig. 3 is an elastic tube wrench structure schematic diagram.

The specific embodiment

Nonrestrictively in the accompanying drawing enumerated the embodiment that the utility model relates to, the utility model has been further described below in conjunction with embodiment.

An embodiment of the present utility model is a kind of elasticity spanner, its structure as shown in Figure 1, wherein, first spanner (1) connecting rod (2) that vertically is connected, second spanner (3) and handle (4) axially have slotted eye, connecting rod (2) runs through wherein, and spring (5) is connected between connecting rod (2) and the handle (4); Handle (4) is hinged with second spanner (3), and its hinged ear (6) is near a side of connecting rod (2), and close edge is curved; The thickness of first spanner (1) is slightly larger than second spanner (3); First spanner (1) and second spanner (3) are the linear plane contact for workpiece.

The component shape of this spanner and assembling are as shown in Figure 2.

Another embodiment of the present utility model is a kind of elasticity pipe wrench, its structure as shown in Figure 3, different with first embodiment is: hinged ear (6) is near the opposite side of connecting rod (2); First spanner (1) is that camber line shape dentation contacts with second spanner (3) for workpiece.

It may be noted that, the disclosed a kind of elasticity monkey wrench of the utility model, its element title, shape and connecting mode, can be according to different purposes and workpiece shape and respective change, every based on the utility model basic structure design, improved similar techniques and product, all belong to technical scope of the present utility model.

From as can be known above-mentioned, elasticity spanner of the present utility model, the operation overall process need not be regulated also and need not be broken away from workpiece, has that highly versatile, adaptability are good, a manoeuvrable, low, the advantage of wide range of application of cost.

Claims

1. elasticity spanner, it comprises: first spanner (1) and vertical links (2) thereof, second spanner (3) and handle (4), it is characterized in that: also comprise a spring (5), wherein, second spanner (3) and handle (4) axially have slotted eye, connecting rod (2) runs through wherein, and spring (5) is connected between connecting rod (2) and the handle (4).

2. elasticity spanner as claimed in claim 1 is characterized in that: described handle (4) is hinged with second spanner (3), and its hinged ear (6) is near a side of connecting rod (2), and close edge is curved.

3. elasticity spanner as claimed in claim 1 or 2 is characterized in that: described first spanner (1) thickness is slightly larger than second spanner (3).

4. elasticity spanner as claimed in claim 1 or 2 is characterized in that: described first spanner (1) and second spanner (3) are the linear plane contact for workpiece, also can be the contact of camber line shape dentation.