CN2209017Y

CN2209017Y - Improved fix type open jaw spanner

Info

Publication number: CN2209017Y
Application number: CN 94222664
Authority: CN
Inventors: 李荣茂
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-11-11
Filing date: 1994-11-11
Publication date: 1995-10-04
Anticipated expiration: 2004-11-11

Abstract

Disclosed is an improved fixing type spanner with an open jaw. The two ends of the handle body are enlarged to form a function body which is provided with a first opening. The inner end of the first opening, which inwards extends, is provided with a second opening and a third opening which are of divergence, and the openings whose sizes are different are suitable for screw caps with different specifications. A 135 DEG included angle is formed among gap between opposite sides, the opposite sides of the first opening, the adjacent sides between the second opening and the third opening, and a 90 DEG included angle is formed between other adjacent sides between the second opening and the third opening. The utility model which is of pertinency and is of practicability can be equivalent to three original spanners, and an included angle between adjacent sides of the screw cap is not damaged.

Description

Improved fix type open jaw spanner

The utility model relates to a kind of fixed opening wrench of improvement, belongs to the technical field of hand-operated tools.

Existing fixed formula open-end wrench, its size is single fixing, the scope of application is limited takes inconvenience, as shown in Figure 1, this back-up wrench 10 has flat stock body, the two ends of handle body 11 are provided with the service portion 12 that is the garden shape, establish two opposite side, 13 open parallel 14 at service portion 12,13 square sizes of two opposite side of this opening 14, just in time equal a kind of two opposite side, 21 spacing sizes of nut 20, because 10 of this fixed spanners have two kinds of sized opening 14, therefore on reality is used, can only apply to the nut 20 of two kinds of sizes, the scope of application is subjected to bigger restriction, and the nut that deal with multiple different size just needs to use more spanner 10, is uneconomical in fact, and constantly change spanner, also feel to take inconvenience.

Nut or screw head opposite side spacing dimension are different, if use existing fixed formula spanner, will use the spanner of half quantity of nut size, and just use the active open spanner,, use inconvenience because nut size difference often needs its openings of sizes of levelling, and the opening size after the levelling always has the activity clearance, and nut two adjacent side angles are damaged.

The purpose of this utility model is the fixed open-end wrench that a kind of improvement will be provided, it can remedy above-mentioned deficiency, opening inner edge at spanner, extend internally and be concaved with the opening of two fork different sizes, and make each opening two opposite side parallel to each other, and the adjacent side of the opposite side of first opening and the second, three opening is angled, makes the nut of wrench applicable to three kinds of sizes.

The purpose of this utility model is achieved in that

A kind of fixed opening wrench of improvement, it has handle body 31, handle body two ends enlarge and form acting body 32, first opening 33 is set on the acting body, the inner of first opening 33, limit, the two ends spacing that the fork that extends internally is provided with second opening 34 and the 3rd opening 35, the first openings, 33, the second openings 34 and the 3rd opening 35 is different.

Be 135 ° of angles between the opposite side of first opening 33 and second opening, 34, the three openings, 35 adjacent sides, and equal 90 ° of angles between other side adjacent edge of second opening, 34, the three openings 35.

Fig. 1 is the schematic perspective view of existing two fixed wrench of opening

Fig. 2 is the stereogram of improved fixed opening wrench

Fig. 3 is the user mode schematic diagram of improved fixed opening wrench

Now in conjunction with the accompanying drawings the structure of fixed opening wrench is described in detail:

By Fig. 2, wrench 30 has a handle body 31, its two ends enlarge and form service portion 32, respectively be provided with an opening 33 on the service portion, the fork that extends internally in opening 33 the inners is provided with second, the 3rd opening 34,35, make first, second, the 3rd opening 33,34, limit, 35 two ends spacing is different, accord with a kind of nut opposite side spacing dimension, and the opposite side 36 of first opening 33 and the second, the three opening 34,35 are 135 ° of angles, make second again, the 3rd opening 34,35 side adjacent edge in addition is 90 ° of angles, therefore fixed wrench just has six kinds of different size openings, is three times of the opening number of original wrench 10.

By Fig. 3, when reality is used, because the service portion 32 at wrench 30 two ends respectively has first, second, third opening 33,34,35 of three different opposite side spacing dimensions, be equivalent to 6 openings, each opening can adapt to a kind of nut head 20 or nut head 20 chimeric uses, therefore the scope of application of this wrench also is one and can supports three original wrench, not only economy but also suit practicality.

Compared with prior art, the fixed opening wrench of improvement has following advantages:

1, this wrench has 6 openings, and applicable to the nut of 6 kinds of specifications, the scope of application enlarges, and is both economical, again practical.

2, opening size is fixed, and need not align, can generation activity clearance during use, thereby unlikely damage nut adjacent side angle.

Claims

1, a kind of fixed opening wrench of improvement, it has handle body (31), handle body two ends enlarge and form acting body (32), first opening (33) is set on the acting body, the inner that it is characterized in that first opening (33), the fork that extends internally is provided with second opening (34) and the 3rd opening (35), first opening (33), and limit, the two ends spacing of second opening (34) and the 3rd opening (35) is different.

2, wrench according to claim 1, it is characterized in that: the opposite side of first opening (33) and second opening (34), be (135 °) angle between the 3rd opening (35) adjacent side, and second opening (34) equals 90 ° of angles between other side adjacent edge of the 3rd opening (35).