CN2538493Y - Adjustable wrench - Google Patents

Abstract

An ironware tool to screw and turn bolts, screw caps and tubes applies lever principle and replaces clumsy control over jaw opening size by pulling a screw rod with thumb with an operation method similar to wire clamp control. The ironware tool has the advantages of: 1. Flexible and convenient operation, high working quality, skid or blockage prevention and work-piece damage protection; 2. Wide applicable scope to screw and process hexagonal, square and circular work-pieces; 3. Multifunction to serve as a wrench, a grip wrench or tongs, etc.

Description

Adjustable wrench

The utility model relates to a kind of hardware ﹠ tools that is used for pulling rotary screw, nut and pipe.

Now, what pull that rotary screw, nut use is spanner, and what pull the sub-usefulness of coil is pipe vice, has another name called " pipe spanner ".When using, these two kinds of instruments all to promote lead screw to adjust jaw size with thumb.Jaw is big, skids easily or chamfering; Jaw is little, again can be stuck, can not take off spanner.Operation is clumsy, does not put just very much.

The utility model utilization lever principle as the method for operating of using cutting pliers, promotes the clumsy way that lead screw is adjusted jaw size to replace with thumb.Not only flexible to operation, the work quality height, and multiple function of use is arranged.

Implementation is as follows in conjunction with the accompanying drawings:

Fig. 1 is a schematic perspective view of the present utility model,

Fig. 2 is a front elevational schematic,

Fig. 3 is a side schematic view,

Fig. 4 closes front elevational schematic for moving,

Fig. 5 closes schematic top plan view for moving,

Fig. 6 is the pole front elevational schematic,

Fig. 7 is the pole schematic top plan view,

Fig. 8 is the action bars front elevational schematic,

Fig. 9 is the action bars schematic top plan view.

Among the figure: 1 maxilla, 2 lower jaw, 3 handles, 4 teeth groove, 5 move and close, and 6,7 poles, 8 action bars.

Maxilla (1) is in the upper end of handle (3), is provided with teeth groove below it.Lower jaw (2) with move that to close (5) be whole, close (5) and move up and down with moving, be provided with teeth groove above it, corresponding with maxilla (1).Teeth groove (4) is last oblique down flat shape, with handle (3) be an integral body.Move and to close (5) and be connected by axle (6), can on handle (3), move up and down with action bars (8).Its upper end of pole (7) is connected with action bars (8) by axle (6), and is provided with obstruction, upsprings without limit to limit it; Matching with teeth groove (4) in its lower end, is convenient to insert teeth groove (4), to stop its downslide.Action bars (8) is closed (5) and pole (7) and is connected to each other and forms lever with moving by axle (6); Be provided with spring between action bars (8) and the pole (7), both are flicked; The upper end of action bars (8) also is provided with obstruction, up pulls without limit to limit it.

In order to save material, but also the section of handle (3) is made " worker " shape, moves so to close (5) and also should change, so that supporting.

The utility model has multiple big or small class, roughly the same active spanner.Its maxilla of the Adjustable wrench of little class (1) also can not be provided with teeth groove with lower jaw (2).

During use: action bars (8) is lifted slightly outward, the lower end and the teeth groove (4) of pole (7) are broken away from, action bars (8) can close (5) and arbitrarily move up and down with moving, make maxilla (1) and lower jaw (2) interlock work package, that is: " screw, a chain for binding criminals cap, pipe " etc. holds handle (3) and action bars (8) then.The lower end of pole (7) can fall in the corresponding teeth groove (4) automatically.Teeth groove (4) has withstood and has moved the downslide of closing (5), by the leverage of action bars (8), can close (5) with moving and effectively advance simultaneously, and maxilla (1) and lower jaw (2) are bitten securely by the work package of turn.---be screw or nut, pipe etc.Just can pull freely and revolve operation.

The utility model advantage:

One, easy and simple to handle---do not need in the use constantly to promote nut with thumb Adjust jaw size or repeatedly spanner is loaded onto the trouble that loads.

The size of two, flexible operation---jaw is holding with a firm grip or hold pine and grasp flexible operation with hand entirely.Can not take place jaw too pine skid or the too tight stuck phenomenon of jaw.

Three, the work package of different shape can both be processed---and no matter the work package of different shape such as hexagon, square, garden shape can both be processed.

Four, multi-functional---can be used as uses such as spanner, pipe vice, pliers.

Claims (8)

1. a hardware ﹠ tools that is used to pull rotary screw, nut, pipe---Adjustable wrench, by maxilla, lower jaw, handle, teeth groove, move close, axle, pole, action bars etc. form.

2. Adjustable wrench according to claim 1, it is characterized in that: handle is provided with teeth groove.

3. Adjustable wrench according to claim 1 is characterized in that: maxilla and lower jaw all are provided with teeth groove.

4. Adjustable wrench according to claim 1 is characterized in that: be equipped with on the handle to move and close.

5. Adjustable wrench according to claim 1 is characterized in that: move close with lower jaw be an integral body.

6. Adjustable wrench according to claim 1 is characterized in that: mobile closing by axle is connected with action bars.

7. Adjustable wrench according to claim 1 is characterized in that: pole is connected with action bars by axle.

8. Adjustable wrench according to claim 1 is characterized in that: the pole lower end is less than 90 degree.

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