CN2410084Y - Fast locating clamping jaw structure for wrench - Google Patents

Abstract

The utility model provides a fast positioning clamping jaw structure for wrenches. The utility model is characterized in that the outer side end of a clamping jaw on the head part of the wrench is provided with a structure with an enlarged scale-diameter to form a diameter enlarging area, and the tail end of jaw clamps on both sides of the diameter enlarging area, forming a two-segment type clamping jaw structure of the wrench. The size of the diameter enlarging area is a little larger than a screw bolt (nut) so as to enable a rotating space margin for the screw bolt (nut) to be provided after the inner side end of the clamping jaw of the wrench disengages form clamping for being convenient to rapidly sheath and position again. The retracted mouth of the utility model can prevent the wrench from disengaging form the screw bolt (nut) when outwards pulled to maintain continuous operation, and accordingly, the utility model is enabled to have the advantages of more convenient operation and time saving.

Description

The quick locating clip mouth structure of spanner

The utility model relates to the spanner of a kind of spanner, particularly a kind of open jaw type.

Lock for bolt workpiece such as (mothers) unloads operation, generally be with open-end wrench, monkey wrenches etc. are pulled control formula hand-held tool and are implemented, though wherein monkey wrench makes it have the advantage that one size fits all plurality of specifications bolt (mother) lock unloads operation because of the structure of its movable jaw, but its whole cost is higher, and because its structure is to cooperate fixed jaw that bolt (mother) is formed the clamping location with movable jaw, after operable lock is unloaded bolt (mother) revolution certain angle, the just action of cartridge clip again, and often need to transfer earlier loose movable jaw with smooth disengaging bolt (mother), again be nested with again and locking activity jaw, thereby cause operational suitable trouble and inconvenience.

Though and open-end wrench is the specifications design that fixes because of its folder mouth, cause its lock that can only be applicable to single specification bolt (mother) to unload, but on the location of the cartridge clip again in the process that lock unloads, after open-end wrench can directly break away from, be sandwiched in bolt (mother) with suitable angle cover once more, do not need to adjust its folder mouthful chi footpath fully, obviously more convenient than monkey wrench on the implementation, therefore, for often facing the user that fixedly specification bolt (mother) lock unloads in the work, remain main selection open-end wrench.But, though open-end wrench does not need to do complicated adjustment action as monkey wrench on the location of cartridge clip again of bolt (mother), but after still need making key grip break away from bolt (mother) fully on the implementation, again cartridge clip is located again, this one repeats to detach between the action of being inserted in again, invisible meeting causes expending of time, prolongs its lock and unloads the operating time, and still difficulty is called instrument easily.

The purpose of this utility model is to provide a kind of improved spanner quick locating clip mouth structure, it can be on the again cartridge clip location of spanner to bolt (mother), special can be under the folder mouthful situation that does not need to break away from fully turn spanner and finishing fast slightly, and it is can keep operating continuity, thereby more easy in operation, save time.

Utility model is achieved in that at the head folder mouthful outboard end of spanner and establishes the structure that adds large size and form a hole enlargement zone, the terminal subtend of jaw of both sides, hole enlargement zone extends into the reducing that chi directly is slightly less than folder mouthful medial extremity, constitutes the two-part folder mouth structure of spanner.

The hole enlargement zone chi of key grip outboard end directly is slightly larger than bolt (mother's) diagonal distance;

Folder of the present utility model mouthful two-part structure, spanner is unloaded in the operating process at bolt (mother) lock, two parallel clamp surfaces with the key grip medial extremity form firm clamping location usefulness to bolt (mother), the space nargin of further utilizing the hole enlargement zone to provide, spanner is done again in the cartridge clip action at disengaging bolt (mother), no longer need to make key grip to break away under the bolt (mother) turn spanner slightly fully, can obtain quick cartridge clip location, its throat structure can prevent to break away from when spanner from drawing bolt (mother) outward, keep continuity of operation, make it more easy in operation, save time, and need not set up any member, additional manufacturing workload is little, and the cost of increase is atomic.

The concrete structure of utility model is provided by following examples and accompanying drawing thereof.

Fig. 1 is that the quick locating clip mouth structure of the utility model open-end wrench axle is surveyed schematic diagram.

Fig. 2 is that the fit of Fig. 1 structure and bolt (mother) concerns schematic diagram.

Fig. 3 is the structural relation schematic diagram under the outer tension state of Fig. 1 structure.

Fig. 4 is the structural relation schematic diagram of Fig. 1 structure under turn state.

Fig. 5 is that the utility model monkey wrench example structure axle is surveyed schematic diagram.

Fig. 6 is that the fit of the utility model monkey wrench and bolt (mother) concerns schematic diagram.

With reference to Fig. 1,2, the enforcement of the quick locating clip mouth structure of spanner on open-end wrench, on its structural design, mainly be to do to add the large size design and form a hole enlargement zone 12 at head folder mouthful 11 outboard ends of open-end wrench 10, be advisable with the diagonal distance that is slightly larger than bolt (mother) 20 in the chi footpath in hole enlargement zone 12, and the jaw 13 of 12 both sides, hole enlargement zone, 13 ' terminal subtend extends into the reducing 14 that chi directly is slightly less than folder mouthful two side ends, constitute two-part folder mouthful 11 structures of open-end wrench 10 in view of the above, two parallel clamp surfaces with spanner 10 folder mouthful 11 two side ends can form firm clamping location usefulness to bolt (mother) 20, thereby can unload with the lock that spanner 10 interlocks are controlled bolt (mother) 20, and can provide the rotary space nargin of spanner 10 with respect to bolt (mother) 20 with the hole enlargement zone 12 of folder mouthful 11 outboard ends;

Continue to cooperate with reference to Fig. 3,4, above-mentioned two-part folder mouthful 11 structures of open-end wrench 10, because of its folder mouthful 11 outside reducings 14 are slightly less than the medial extremity predetermined dimension, thereby can adopt the fit mode that spanner 10 is inserted in bolt (mother) 20, two parallel clamp surfaces with its folder mouthful 11 medial extremitys form firm clamping to bolt (mother) 20, and then spanner 10 lock of controlling bolt (mother) 20 unloads fastenedly, treat that spanner 10 switchings are to a certain degree and again during cartridge clip, spanner 10 can be drawn slightly outward, bolt (mother) is broken away from pressed from both sides mouthfuls 11 clamp position and be in relatively in the hole enlargement zone 12, because of the chi in hole enlargement zone 12 footpath greater than bolt (mother) 20 maximum diagonal distance, thereby can make spanner 10 any turns and the unlikely bolt (mother) 20 that touches, the chi of its reducing 14 of mat directly designs simultaneously, can determine to prevent that bolt (mother) 20 is after the former application of force angle of spanner 10 cycles, can once more 10 pairs of bolts of spanner (mother) 20 be formed the cartridge clip location, be beneficial to lock once more and unload operation, be reducing 14 structures, in the time of can making spanner 10 outer drawing, reason does not overexert and breaks away from bolt (mother) 20, thereby guarantees the good continuity of operation.

In view of the above, unload in the operating process at the lock of the utility model open-end wrench 10 at bolt (mother), the hole enlargement zone 12 and reducing 14 structures of its folder mouthful 11 outboard ends of mat, make spanner 10 on the location of cartridge clip again of bolt (mother) 20, can under spanner 10 folder mouthfuls 11 does not need the situation of safe escape bolt (mother) 20, obtain easy and implement fast, effectively improve traditional open-end wrench and use the disappearance that faces, improve its overall utility and convenience.

With reference to Fig. 5,6, be the embodiment on the utility model monkey wrench, mainly be fixed jaw 31 and movable jaw 32 relative clamping faces 33 at monkey wrench 30,34 segmentum laterale forms a hole enlargement zone 35 respectively, 36, and hole enlargement zone 35, the fixed jaw 31 of 36 outermost end and the reducing 311 of movable jaw 32, the 321st, slightly subtend bends and slightly gives prominence at its clamping face 33,34 extension line, structure in view of the above, lock at bolt (mother) 20 unloads in the operation, reach the clamping location to different bolts (mother) 20 except utilizing the existing activities of monkey wrench 30 to adjust usefulness, unload at the lock of controlling bolt (mother) 20 and can utilize two clamping faces 33 in the operation equally, the hole enlargement zone 35 of 34 segmentum laterales, 36 spaces that form provide the relative activity space nargin of bolt (mother) 20, make it can directly monkey wrench 30 be turned back to the former application of force angle new cartridge clip bolt (mother) 20 of laying equal stress on, thereby can effectively solve and readjust pine---make consuming time and inconvenient that tight movable jaw derives, have good enforcement convenience.

Claims (2)

1. quick locating clip mouth structure of spanner, comprise the folder mouth, it is characterized in that: the head folder mouthful outboard end of spanner is established the structure that adds large size and is formed a hole enlargement zone, the terminal subtend of jaw of both sides, hole enlargement zone extends into the reducing that chi directly is slightly less than folder mouthful medial extremity, constitutes the two-part folder mouth structure of spanner.

2. the quick locating clip mouth structure of spanner according to claim 1 is characterized in that the hole enlargement zone chi of key grip outboard end directly is slightly larger than bolt (mother's) diagonal distance.

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