CN2179808Y - Open-end wwrench - Google Patents

Abstract

The utility model relates to an open spanner driving rounded knotting pieces, which comprises two palate clamps which are respectively provided with an inner surface. The inner end of every inner surface is provided with a drive surface having low oblique, and every inner surface comprises a half pear-shaped hole which is provided for one corner of a hexagonal nut to be contained. The palate clamps form a plurality of horizontal and parallel longitudinal grooves or a plurality of cross grooves in the area of the driving inclined surfaces. The longitudinal grooves or the grooves cause the material of the corner wall surfaces of the rounded knotting pieces to be regularly damaged and is sunk and clamped in the longitudinal grooves or the grooves in order to prevent the relative slip of the corner side walls of the knotting pieces and accordingly to be convenient to disassemble the rounded knotting pieces.

Description

Open-end wwrench

The utility model is about a kind of open-end wrench of sphering tying means that drives, especially about a kind of open-end wrench that drives normal hexagon tying means and can drive the hexagon tying means of sphering in damaged condition.

Open-end wrench is a kind of hand-held tool; It has two jaws, respectively comprises a plane drive surface.This two drive surface roughly be parallel to each other and form betwixt one just can a ccontaining tying means (for example hexagon nut) opening shape larynx cave, so that a tying means must be entered by the openend in larynx cave within the larynx cave, and this two parallel mutually drive surface of mat drives the side of tying means.Slip among the larynx cave for ease of tying means (for example hexagonal (hexagon)nut), in fact the distance between two drive surface is the distance that is slightly larger than between two parallel side of hexagonal (hexagon)nut.Therefore, when reality drove tying means, drive surface contacted with face with the face that the tying means side is not into parallel shape, but became an angle of inclination and be contacted with near the tying means corner.This kind way of contact is easy to cause the corner of tying means to be damaged (being sphering).

After the corner of tying means was subjected to sphering destruction, general open-end wrench promptly no longer can drive this tying means.Under this kind situation, the operator often needs other instrument with similar pipe wrench can drive this impaired nut or bolt of sphering again.If this moment, the operator did not carry the hand-held tool of the similar pipe wrench of this kind, then this impaired tying means of sphering promptly can't give operation again, thereby cause inconvenience and puzzlement in the work.Especially, only can insert for open-end wrench in the corner at some tying means place, and can't use the big shape instrument of pipe wrench analog the time, the tying means that the sphering in this corner damages promptly is not easy to drive (locking or remove) more very much again.

Main purpose of the present utility model is to provide one can drive the open-end wrench of sphering tying means, and it comprises two jaws; Each jaw respectively comprises a plane inner surface.The root of each inner surface form a pitch drives face and the nearly free end of inner surface form one just can ccontaining hexagon tying means one corner half pyriform cave, and the zone beyond the drive surface of inner surface forms some pods that are parallel to each other; The mat drive surface cooperates with half pyriform cave, can make the side of hexagon tying means become the face and the face way of contact to be incorporated into drive surface, thereby both can drive normal tying means, and but the mode that the mat pod destroys the tying means side material with rule snaps in the side-wall material that is subjected to sphering to destroy tying means, to drive the impaired tying means of sphering.

The purpose of this utility model reaches as follows:

A kind of open-end wrench of sphering tying means that drives comprises a lever and at least one driving end, and driving end comprises that two jaws constitute the ringent larynx of ∩ shape cave, each tool one inner surface of two jaws and extension roughly parallel to each other; Distance between two inner surfaces is slightly larger than the distance of will give between two parallel side of hexagon tying means of operation; The root of inner surface forms one with respect to the low-angle plane drive surface of inner surface one-tenth inclination, and forms half pyriform cave in inner surface near free end; It is characterized in that: the zone of inner surface beyond the drive surface forms some being parallel to each other and the pod of horizontal longitudinal extension, and this pod extends to drive surface and forms a subtriangular inclined-plane at the drive surface upper limb.

The purpose of this utility model can also following mode reach:

The described open-end wrench of sphering tying means that drives is characterized in that: wherein drive surface is 4 to 8 degree with respect to the angle of inclination of inner surface.

The described open-end wrench of sphering tying means that drives is characterized in that: wherein also be provided with some translots on the inner surface, it is formed at the regional and vertical mutually with pod of pod place, and forms some conoid process grains.

The described open-end wrench of sphering tying means that drives, it is characterized in that: wherein the degree of depth of translot is 2/3rds of the pod degree of depth.

The described open-end wrench of sphering tying means that drives is characterized in that: the cross section of the translot triangle that meets at right angles wherein; Described prominent particle shape becomes the right angle cone and has a upright promotion face, this uprightly promotion face be end opposite towards the wrench opening end.

Advantage of the present utility model is: the utility model both can drive normal hexagon tying means, can drive the tying means that has damaged sphering again, thereby had increased the function of open-end wrench, for the user provides convenience.

More detailed technology content, structure, purpose, effect and the implementation and operation state of this creation, the following graphic cooperation explanation of mat can fully be understood by clearer and more definite quilt.

Graphic explanation:

Fig. 1 is the stereo appearance figure of the open-end wrench of sphering tying means that drives of the present utility model;

Fig. 2 is the side schematic view of an embodiment of open-end wrench of the present utility model;

Fig. 3 is that the utility model open-end wrench drives a normal not operation chart of sphering hexagon tying means;

Fig. 4 is that the embodiment clockwise direction of open-end wrench of the present utility model drives the application drawing of sphering hexagon tying means;

Fig. 5 is the pod part enlarged drawing on the inner surface of open-end wrench of the present utility model;

Fig. 6 is the longitudinal profile schematic diagram that the pod of the inner surface of open-end wrench of the present utility model snaps in the tying means material surface;

Fig. 7 is the stereo appearance figure of another embodiment of open-end wrench of the present utility model, shows the inner surface with cross bath;

Fig. 8 is the part enlarged drawing of cross bath of the inner surface of the utility model open-end wrench as shown in Figure 7;

Fig. 9 is that open-end wrench as shown in Figure 7 of the present utility model drives the operation chart of the impaired hexagon tying means of sphering;

Figure 10 is that the open-end wrench of the utility model another embodiment as shown in Figure 7 drives the generalized section of sphering tying means.

As shown in Figure 1, 2, open-end wrench 1 of the present utility model mainly comprises a lever 2 and at least one driving end 3.Driving end 3 is combined into the ringent larynx of ∩ shape cave 6, two jaws 4,5 by two jaws 4,5 and has an inner surface 41,51, and state becomes to be parallel to each other relatively and roughly.Distance is slightly larger than a hexagon tying means 7(who cooperates with it as shown in Figure 3 between this two inner surface 41,51) two parallel side between distance so that this hexagon tying means 7 is inserted among larynx cave 6.The root of inner surface 41,51 (being the free-ended opposition side of opening) respectively forms a skewed drive surface 42,52.This drive surface 42,52 is and inner surface 41,51 one-tenth one low-angle α (about 4 ° to 8 °), and form 120 ° corner 3 in root, just can be ccontaining normal (be not subjected to sphering destroy before) hexagon tying means 7(is as shown in Figure 3) one of a side b ' and a corner b.

For another example shown in Fig. 1,2,3, inner surface 41,51 near respectively forming half pyriform cave 43,53 near the free end, a relative corner a who is contained in the hexagon tying means 7 in the relative corner β of a drive surface 42,52 just is contained among this half pyriform cave 43,53.Each inner surface 41,51 is tied to form the orthodrome curved surface of mitigation between half pyriform cave 43,53 and drive surface 42,52.

As shown in Figure 3, one of the ccontaining hexagon tying means 7 of mat drive surface 42,52 an and corner β side b ' and a corner b, and mat inner surface 41,51 contacts the another side a ' of hexagon tying means 7 at half pyriform cave 43,53 and the circular arc camber 431 or 531 between the drive surface 42,52, and the mode that can face simultaneously contacts drives this normal hexagon tying means and is subjected to sphering with the corner of avoiding hexagon tying means 7 and destroys.(technology contents of this part is in No. 82210892 patent application case in Taiwan that this case applicant early applies for a patent, and existing more detailed description does not repeat them here).

As shown in Figure 1, 2, the zone of open-end wrench 1 of the present utility model beyond the pitch drives face 42,52 of the inner surface 41,51 of jaw 4,5 forms pod 8(that some vertical equities extend shown in Fig. 1,5), this pod 8 extend inwardly to drive surface 42,52 and on drive surface 42,52 edge form the subtriangular inclined-plane 81 of row.

As shown in Figure 4, be subjected to sphering to destroy the 7 ' time of tying means of (being that each corner is because of the stressed excessive sphering that collapses) when driving one, open-end wrench 1 outside (being the direction of arrow W) can be extracted out slightly, make inner surface 51 have the part contact hexagon tying means 7 of pod 8 ' side b '.When rotating spanner 1 (shown in Fig. 1,4), hexagon tying means 7 ' the material of side b ' promptly be subjected to scraping of triangular ramp 81, and be absorbed in slightly among each pod 8.When spanner 1 is rotated further, more materials of hexagon tying means 7 ' side b ' are promptly swept and jam-pack within pod 8 (shown in Fig. 1,6), and then the inner surface 51 that stops jaw 5 and hexagon tying means 7 ' side b ' between relative slip, and can utilize this spanner 1 drive a hexagon tying means 7 that has been subjected to the sphering damage '.

Shown in Fig. 7,8,9, for improve jaw 4,5 inner surfaces 41,51 for sphering hexagon tying means 7 ' the on-slip driving force, the zone system of its inner surface 41,51 beyond pitch drives face 42,52 can form cross bath 9; That is on aforesaid some pods 8, form some vertical with it translots 91 again.The degree of depth of this translot 91 only is 2/3 of pod 8 degree of depth.The cross section of this translot 91 can form right angled triangle, thereby forms the prominent grain 92 of some approximate right angle tapers at jaw 4,5 inner surfaces 41,51, as shown in Figure 8.Should have a upright promotion face 93 by prominent grain 92, towards the end opposite of open-end wrench openend.

As Fig. 7,9, shown in 10, when rotating open-end wrench 1, prominent grain 92 on one inner surface 51 promptly be absorbed in regularly hexagon tying means 7 ' the material of side b ' within, and but the upright promotion face 93 of the prominent grain 92 of mat stops prominent grain 92 excessively to sweep the material of hexagon tying means 7 ' side b ', and then stop inner surface 51 and hexagon tying means 7 ' side b ' between relative slip, prominent grain 92 on another inner surface 4 then only withstand hexagon tying means 7 ' another side a ' and its material is not swept and is absorbed in so that utilize open-end wrench to drive the impaired hexagon tying means of sphering.

Shown in Fig. 2,3, open-end wrench 1 of the present utility model is when driving normal hexagon tying means 7, owing to being two parallel side b ', a ' that drives hexagon tying means 7 with the drive surface 52 fit circular arc faces 431 of clinoplain shape, its triangular ramp 81(is as shown in Figure 1) or prominent 92 material that shown in Fig. 7,8, can't sweep tying means 7 sides.

Open-end wrench 1 no doubt of the present utility model with the upright promotion faces 93 of the 8 formed triangular ramps 81 of the pod on its inner surface 41,51 or cross bath 9 formed prominent grains 92 drive the hexagon tying means 7 of sphering ' side b ', a ' time, with cause hexagon tying means 7 ' side material be subjected to further destruction; But the sphering tying means is a kind of in damaged condition and element that must be changed.Therefore, this tying means of sphering after the open-end wrench that utilizes this creation is pulled down, promptly should be replaced with normal int tying means.The sphering tying means will further destroy though this creation will cause when dismantling the sphering tying means, not influence normal operation.

Claims (5)

1, a kind of open-end wrench of sphering tying means that drives comprises a lever and at least one driving end, and driving end comprises that two jaws constitute the ringent larynx of ∩ shape cave, each tool one inner surface of two jaws and extension roughly parallel to each other; Distance between two inner surfaces is slightly larger than the distance of will give between two parallel side of hexagon tying means of operation; The root of inner surface forms one with respect to the low-angle plane drive surface of inner surface one-tenth inclination, and forms half pyriform cave in inner surface near free end; It is characterized in that: the zone of inner surface beyond the drive surface forms some being parallel to each other and the pod of horizontal longitudinal extension, and this pod extends to drive surface and forms a subtriangular inclined-plane at the drive surface upper limb.

2, the open-end wrench of sphering tying means that drives according to claim 1 is characterized in that: wherein drive surface is 4 to 8 degree with respect to the angle of inclination of inner surface.

3, the open-end wrench of sphering tying means that drives according to claim 1 is characterized in that: wherein also be provided with some translots on the inner surface, it is formed at the regional and vertical mutually with pod of pod place, and forms some conoid process grains.

4, the open-end wrench of sphering tying means that drives according to claim 3, it is characterized in that: wherein the degree of depth of translot is 2/3rds of the pod degree of depth.

5, the open-end wrench of sphering tying means that drives according to claim 3 is characterized in that: the cross section of the translot triangle that meets at right angles wherein; Described prominent particle shape becomes the right angle cone and has a upright promotion face, this uprightly promotion face be end opposite towards the wrench opening end.

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