CN203221441U - Multipurpose movable screw key - Google Patents

Abstract

The utility model discloses a multipurpose movable screw key. The multipurpose movable screw key comprises a handle, a key body, a front clip jaw and a rear clip jaw, wherein the outward facing surfaces of lower half parts of the front clip jaw and the rear clip jaw are semicircular, and an inner circular ring forms a clamping surface; the clamping surface is provided with a plurality of longitudinal ridge teeth; the front end of the key body is provided with a hole; the top end of the upper half part of the front clip jaw is provided with a screw rod and a nut matched with the screw rod for use; the front clip jaw is fixed at the front end of the key body with the nut after the screw rod of the front clip jaw penetrates through the hole; the key body is provided with an adjusting slideway; the rear clip jaw, at the top end of the upper half part, is provided with a square sliding block capable of being embedded in the adjusting slideway and can move in the adjusting slideway through the sliding block; the top surface of the sliding block is provided with a screw rod and a nut matched with the screw rod for use; and when the sliding block is embedded in the adjusting slideway, the nut is screwed on the screw rod so that the rear clip jaw is fixed on the key body. The multipurpose movable screw key disclosed by the utility model is convenient to install, and dose not need a set of key tools, so that manpower and material resources are saved.

Description

The multifunctional movable screw wrench

Technical field

The utility model relates to mechanical manufacturing field, relates to a kind of multifunctional movable screw wrench that uses when install machinery equipment specifically.

Background technology

Removing and installing in the process of machinery equipment, often want the dismounting screw, in this case, need use spanner.Because the diameter difference of the screw that uses, therefore needs use the spanner of different bores.For convenience's sake, people often adopt monkey wrench to replace using a string wrench.

Chinese invention patent application number 200810139821.8 discloses a kind of monkey wrench, comprise the regular jaw of wrench body front end and the moving jaw that matches, the moving jaw lower shaft is to the mobile post of one with it is set, mobile post is inlaid in the sliding tray and the slide rail adjacent with sliding tray of regular jaw, wherein the inner surface of the sliding tray adjacent with slide rail is the plane, and is corresponding with the shape on the outer surface of the mobile post of this surface contact and this plane.

But as known in the art, this spanner can only be used in the situation that screw nut is outstanding plane, when nut is mounted in the depression on the machine surface, just this monkey wrench can't use.And a lot of machinery equipments are for security and reason such as attractive in appearance, and the situation that nut is under the plane is very common.In addition, in machinery equipment, use some special-shaped screws through regular meeting, for example 4 jiaos, 5 jiaos, 6 jiaos, 7 jiaos of screws etc.The workman tends to adopt the torticollis sleeve in this case, and obviously, this needs again with going up complete instrument, still can be absorbed in the condition of inconvenience.

The utility model content

The utility model has namely solved tool set and has carried inconvenient problem by a kind of novel multifunctional movable screw wrench is provided, and the monkey wrench that has solved prior art again uses the problem of limitation.

Multifunctional movable screw wrench of the present utility model comprises handle, wrench body, front clamping foot and back pinch, being semi-annular shape and interior annulus surface to outer surface and forming clamping face of the latter half of front clamping foot and back pinch, it is characterized in that, clamping face is provided with some vertical ridge teeth, the wrench body front end has the hole, front clamping foot the first half top is provided with screw rod, the nut that is used with this screw rod is arranged, the screw rod of front clamping foot passes the front end that the Kong Houyong nut is fixed on front clamping foot wrench body, have the adjustment chute on the wrench body, back pinch has the square slider that can be embedded in the adjustment chute and can adjust in the chute mobile by slide block on the first half top, the slide block end face is provided with screw rod, other has the nut that is used with this screw rod, when slide block is embedded in when adjusting chute, nut is screwed in the back pinch is fixed on the wrench body.During use, make the drift angle of the clamping face engagement nut of pinch, then wrench body is installed on two pinches, wherein the screw rod on the front clamping foot is aimed in the hole on the wrench body front end, and chute is enclosed within on the slide block, the front clamping foot nut of screwing on is fixed front clamping foot, the fine setting slide block meshes the clamping face of back pinch fully, back pinch nut is screwed in tightens on the screw rod again, the back pinch is fixed on the wrench body, pulls handle and get final product the turn of the screw.The detachable design of front clamping foot makes spanner to use in various occasions, and for example the screw on the machinery equipment is the situation that is contained in certain corner of machine.In some cases, the screw on the machine can be contained in the angle of two walls formation, so makes spanner can not touch screw.Therefore in a preferred version of the present utility model, the center of the opening on the wrench body front end is not more than the cylindrical radius of front clamping foot to the distance of leading edge, therefore as long as front clamping foot can put in, wrench body just can install, and the position of screw is remote more so also can dismounting.

The clamping face semicircular in shape has some ridge teeth on the clamping face, therefore when clamping face is meshed nut or nut, the drift angle of nut or nut can be clipped between two ridge teeth, therefore torsion is applied on nut or the nut.Multipurpose screw spanner of the present utility model can be used for twisting the screw of different shape, comprises 4 jiaos, 5 jiaos, 6 jiaos, 7 jiaos etc., only needs a spanner just can be used for various screws, is easy to carry, and is easy to operate.

Slider designs be square be to cause reducing operating efficiency in order to prevent that pinch rotates in the turn of the screw.In order to make pinch more stable, adjusting flange of inner edge design of chute, flange extends along the length direction of adjusting chute, is provided with groove in the relevant position of slide block, and when slide block was embedded in the adjustment chute, described groove just in time cooperated with described flange.In order to make slide block be detachable design with wrench body, flange preferably extends to the position of the distance of a slide block length apart from the rear end from the front end of adjusting the chute side, and slide block can install or remove from adjusting runner rear end like this.This design more can limit the elevating movement of pinch, and what particularly become because be contained on the equipment for a long time at the screw of being twisted itself is tighter, thereby when needing bigger torsion just can screw down, this design is more useful.

Beneficial effect: multifunctional movable screw wrench of the present utility model is easy to use, can use in multiple occasion, one-object-many-purposes, the sleeve that can substitute one group of different bore uses, and can overcome the defective that existing monkey wrench can not use at the screw that is installed on the concave surface.

Description of drawings

Fig. 1 is the schematic diagram of multifunctional movable screw wrench of the present utility model.

Fig. 2 is the schematic diagram of an embodiment of the ridge tooth on the pinch of the present utility model.

In the drawings: 1 handle; 2 front clamping foots; 3 back pinches; 4 slide blocks; 5 screw rods; 6 screw rods; 7 holes; The front end of 8 wrench bodies; 9 wrench bodies; 10 adjust chute; 11 nuts; 12 nuts; 13 ridge teeth; 14 flanges; 15 grooves.

The specific embodiment

With reference now to description of drawings multifunctional movable screw wrench of the present utility model.

Referring to Fig. 1, the multifunctional movable screw wrench comprises handle 1, wrench body 9, front clamping foot 2 and back pinch 3.The latter half of front clamping foot and back pinch to outer surface be semi-cylindrical and inwardly part form clamping face, clamping face is provided with ridge tooth 13, the first half of front clamping foot is cylindric and is provided with screw rod 5 on columned top, front end 8 at wrench body has hole 7, the nut 12 that is used with screw rod 5 is arranged, have adjustment chute 10 at wrench body, back pinch has the square slider 4 that can be embedded in the adjustment chute and can adjust in the chute mobile by slide block on the first half top, the slide block end face is provided with screw rod 6, other has the nut 11 that is used with screw rod, when slide block is embedded in when adjusting chute, nut is screwed in the back pinch is fixed on the wrench body.During use, the clamping face of front clamping foot and back pinch is engaged on the nut, the drift angle of ridge tooth 13 engagement nuts wherein, suit upper ejector lever body then, screw rod 5 pass hole 7 and slide block 4 and are embedded in and adjust chute 10, nut 12 is screwed on the screw rod 5, the fine setting slide block makes the clamping face of back pinch mesh nut fully, nut 11 is screwed on the screw rod 6 tightens, the back pinch is fixed on the wrench body, pulls handle and get final product the turn of the screw.In the drawings as seen, adjust chute inside and be provided with a flange 14, flange extends to the position of the distance of a slide block length apart from the rear end along the length direction of adjusting chute from front end, be provided with groove 15 in the relevant position of slide block, and slide block can install from the neutral gear of rear end or remove.

Fig. 2 has provided embodiment that clamping face is provided with the ridge tooth.As shown in the figure, be provided with ridge tooth 13 at front clamping foot 2 and back pinch 3, have at screw under the situation of different shape, for example 4 jiaos, 5 jiaos, 6 jiaos and 7 jiaos of screws, multipurpose screw wrench of the present utility model all can effectively mesh.

By reference to the accompanying drawings embodiment of the present utility model has been done detailed explanation above, but the utility model is not limited to above-mentioned embodiment, in the ken that affiliated technical field those of ordinary skill possesses, can also under the prerequisite that does not break away from the utility model aim, make a variety of changes.

Claims (4)

1. multifunctional movable screw wrench, comprise handle, wrench body, front clamping foot and back pinch, being semi-annular shape and interior annulus surface to outer surface and forming clamping face of the latter half of front clamping foot and back pinch, it is characterized in that, clamping face is provided with some vertical ridge teeth, the wrench body front end has the hole, front clamping foot the first half top is provided with screw rod, the nut that is used with this screw rod is arranged, the screw rod of front clamping foot passes the front end that the Kong Houyong nut is fixed on front clamping foot wrench body, have the adjustment chute on the wrench body, back pinch has the square slider that can be embedded in the adjustment chute and can adjust in the chute by slide block and move on the first half top, the slide block end face is provided with screw rod, and other has the nut that is used with this screw rod, when slide block is embedded in when adjusting chute, nut is screwed in the back pinch is fixed on the wrench body.

2. multifunctional movable screw wrench as claimed in claim 1 is characterized in that, the perforate center on the wrench body front end is not more than the cylindrical radius of front clamping foot to the distance of leading edge.

3. multifunctional movable screw wrench as claimed in claim 1 or 2 is characterized in that, is provided with flange at the inner edge of adjusting chute, is provided with groove in the relevant position of slide block, and when slide block was embedded in the adjustment chute, described groove just in time cooperated with described flange.

4. multifunctional movable screw wrench as claimed in claim 3 is characterized in that, described flange is the position that extends to the distance of a slide block length apart from the rear end from the front end of adjusting the chute side.

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