CN2848478Y

CN2848478Y - Convenient fast spanner

Info

Publication number: CN2848478Y
Application number: CN 200520104662
Authority: CN
Inventors: 潘运腾
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-11-18
Filing date: 2005-11-18
Publication date: 2006-12-20
Anticipated expiration: 2015-11-18

Abstract

The utility model discloses a convenient fast spanner which is composed of a handle, and a fixed clamp pawl and a movable clamp pawl which are relatively opened, wherein the head part of the handle is provided with a biasing triangular body, and the head part of the handle, which corresponds to the movable clamp pawl, is extended with one rod-shaped bulge along the head part direction of the handle. The handle and the fixed clamp pawl, and the handle and the movable clamp pawl are connected through an upper and a lower clamping plates, wherein the fixed clamp pawl and the clamping plates are fixedly connected, the movable clamp pawl and the clamping plates are hinged, and the upper end part of the handle and the clamping plates are hinged. The lower part of the outer side surface of the movable clamp pawl is provided with a transversal spacing groove, and the groove is matched with a spacing rod arranged at one end between the clamping plates. The lower part of the fixed clamp pawl is contacted and matched with the handle. The upper end head of the rod-shaped bulge of the movable clamp pawl is contacted and matched with the movable clamp pawl. The spanner does not need to be repeatedly taken off to realize that a bolt or a nut can be tightly screwed or loosened, and the utility model can bring convenience to users. When the utility model is used for the space of inconvenient operation, the utility model can thoroughly embody the superiority. The utility model has the advantages of simple design structure and reasonable structure.

Description

A kind of convenient and swift spanner

Technical field

The utility model relates to a kind of spanner, relate in particular to a kind of when reinforcing claw binding nut automatically, claw opens automatically when backhaul, do not need to take off repeatedly spanner can continuous rotating bolt or nut drive the self-tightening type spanner certainly.

Technical background

At present, generally use adjustable wrench or back-up wrench when dismounting hex bolts or nut, its advantage is that the claw opening is adjustable or versatility good, thereby is used widely.But in use often make the people feel that weak point is, after turning bolt or nut certain angle, will take off spanner repeatedly makes claw block two other plane of bolt or nut again, afterburning once more rotating bolt or nut, thereby use and often make the people feel that trouble is bothersome, excessive or the too small or operating space of claw opening hour also can influence the insertion of spanner and take off sometimes.

Goal of the invention

The utility model is the problem that exists according to prior art, provides that a kind of claw can automatic fishbolt or nut when reinforcing rotate, the spanner that claw can be expanded automatically during backhaul.

Summary of the invention

The utility model purpose is achieved in that this spanner, and it is to be made of with stationary jaw and movable jaw that can relative folding handle, it is characterized in that the handle head is the triangular shape body of a biasing, handle head at corresponding movable jaw extends a shaft-like projection along the handle cephalad direction, be connected by lower plate between handle and stationary jaw and movable jaw, wherein be connected between stationary jaw and clamping plate, be hinged between movable jaw and clamping plate, be hinged between handle upper end and clamping plate, a cross spacing groove is offered in the lateral surface bottom of movable jaw, the gag lever post of one end setting matches between this groove and clamping plate, contact cooperation between stationary jaw bottom and handle, contact cooperation between the upper end of shaft-like projection and movable jaw.

The technological progress that the utility model is obtained:

Because the utility model unique design structure, when at afterburning swivel bolt or nut, the triangular shape body of spanner handle upper end applies a thrust to movable jaw lower end medial surface, and makes claw fishbolt or nut make its rotation under the effect of gag lever post between clamping plate and spacing groove; When reverse operating, because the shaft-like projection of spanner handle head can apply a thrust to the outside, movable jaw lower end, the jaw that forms between movable jaw and stationary jaw is opened to be magnified, stationary jaw and movable jaw form idle running around bolt or nut, not needing to take off repeatedly spanner makes claw block bolt or nut more just can to realize screwing of bolt or nut or loosen, can demonstrate fully its superiority when especially using in the space that is not easy to operate, thereby can bring convenience to the user, its project organization is simple, reasonable simultaneously, is convenient to promote.

Description of drawings

Below in conjunction with accompanying drawing the utility model is further described.

Fig. 1 is an overall structure schematic diagram of the present utility model.

Fig. 2 is the right view of Fig. 1.

Fig. 3 is the utility model structure reference view under the afterburning state of handle.

The specific embodiment

As Fig. 1, shown in Figure 2, handle 1 head is set to the triangular shape body 9 of a biasing, handle 1 head at corresponding movable jaw 6 extends one shaft-like protruding 2 along handle 1 cephalad direction, 6 of handle 1 and stationary jaw 7 and movable jaws are connected by lower plate 8 on, wherein 8 welding of stationary jaw 7 and clamping plate (or riveting or adopt bolting to be connected), 8 on movable jaw 6 and clamping plate are articulated and connected by a

bearing pin

5,8 on handle 1 upper end and clamping plate are articulated and connected by a bearing pin 10, a cross spacing groove 4 is offered in the lateral surface bottom of movable jaw 6 (being the pairing lateral surface of movable jaw 6 jaws bottom), the gag lever post 3 of 8 one end settings of this groove 4 and clamping plate matches, make 1 on stationary jaw 7 bottoms and handle contact cooperation, shaft-like protruding 2 upper end contacts cooperation with 6 of movable jaws, promptly make movable jaw 6 bottoms be positioned at triangular shape body 9 with shaft-like protruding 2 and contact cooperation with shaft-like protruding 2 with triangular shape body 9, this spanner makes 6 structures that form relative foldings of stationary jaw 7 and movable jaw.

As shown in Figure 3, when reinforcing on handle 1 screws bolt (or nut), the top of the triangular shape body 9 of handle 1 upper end applies a thrust for movable jaw 6 lower end medial surfaces, and under the effect of 8 gag lever posts of clamping plate 3 and spacing groove 4, make claw 6, claw 7 fishbolts (or nut) also make its rotation, this moment, jaw need not break away from bolt (or nut), backward rotation handle 1, because shaft-like protruding 2 pairs of movable jaws, the 6 lower end lateral surfaces of handle 1 head apply a thrust, the jaw that movable jaw 6 and stationary jaw are 7 opens, make open jaw form idle running around bolt (or nut), when handle 1 forwards suitable position to, repeat above operation again, screw or loosen until bolt.

Claims

1. convenient and swift spanner, it is made of with stationary jaw and movable jaw that can relative folding handle, it is characterized in that handle (1) head is the triangular shape body (9) of a biasing, handle (1) head in corresponding movable jaw (6) extends a shaft-like projection (2) along handle (1) cephalad direction, be connected by lower plate (8) between handle (1) and stationary jaw (7) and movable jaw (6), wherein be connected between stationary jaw (7) and clamping plate (8), be hinged between movable jaw (6) and clamping plate (8), (6) are hinged between handle (1) upper end and clamping plate, a cross spacing groove (4) is offered in the lateral surface bottom of movable jaw (6), the gag lever post (3) that an end is provided with between this groove (4) and clamping plate (8) matches, contact cooperation between stationary jaw (7) bottom and handle (1), contact cooperation between the upper end of shaft-like projection (2) and movable jaw (6).