CN2933726Y

CN2933726Y - Diagonal wrench

Info

Publication number: CN2933726Y
Application number: CN 200620035122
Authority: CN
Inventors: 熊雷
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-07-31
Filing date: 2006-07-31
Publication date: 2007-08-15
Anticipated expiration: 2016-07-31

Abstract

The utility model discloses a flexible spanner which comprises a handle (1), a flexible spanner (2), a worm (3), a worm fixing pin (4), and etc. The utility model is characterized in that two jaw surfaces are processed on a fixed spanner(5) formed through expanding from the top of the handle (1), the two jaw surfaces are adjacent, with a included angle of 120 degrees; a groove form is processed at the lower part of the jaw surface(8) of the fixed spanner; the jaw surface (10) on the flexible spanner is a protruding arc and is opposed to a upper jaw surface (7)on the fixed spanner; a locking pin (14)for the worm is arranged on the handle; after connecting with a rotating screw socket(13), the pin(14) is inserted into the handle(1) through locking worm(12) on the bottom of the locking pin. With the structure, the flexible spanner can not only make the inserting and dismounting for the screw cap easier and the stressing part and the direction of the nut cap be changed; thereby the possibility of damaging the angular of the screw cap is reduced greatly.

Description

Monkey wrench

Technical field

The utility model relates to the hand-operated tools field, specifically be used for fastening, connect, the spanner of the hand-operated tools of dismounting or clamping, particularly relate to a kind of monkey wrench of improveing structure.

Background technology

The fixed form of fastenings such as bolt or nut combination has widely in various fields such as machinery, furniture to be used, and the spanner main tool of elasticity bolt just, in order to adapt with the flexible and changeable size of bolt or nut component, the adjustable monkey wrench of width of jaw has appearred; Consult shown in Figure 1ly, the monkey wrench structure that it is commonly used for general tradition is made up of handle 1, Flexible spanner body 2, worm screw 3, worm screw steady pin 4; Handle 1 top extends out to form fixedly pulls body 5, and worm screw 3 is placed in inside, handle 1 top by worm screw steady pin 4, and Flexible spanner body 2 is slided and is embedded in handle 1 top, and Flexible spanner body 2 is provided with teeth groove 6 with respect to the inner edge of worm screw 3, and this teeth groove 6 is meshing with each other with worm screw 3; During use, the two parallel opposite faces of pulling on the body constitute the clamp mouth, control moving of Flexible spanner body 2 by rotary worm 3, have promptly realized the adjustment to extent of opening;

But, the spanner of this structure is not easy to snapping in of nut and returns, the phenomenon that occurs simultaneously fastenings " rounding " easily, its reason mainly be because: on the one hand, the position that jaw in the existing structure can only rely on the frictional force of 6 of worm screw 3 and teeth groove to keep Flexible spanner body 2, when spanner is able to big twisting force, very easily cause width of jaw to become big, make the part slippage; On the other hand, the clamping surface of existing structure is the simple plane shape, and embedding folder face covers the seamed edge that fastenings contacts with it, the stressed maximum of corner angle when screwing, easy deformation, impaired fully.

Summary of the invention

The purpose of this utility model is to provide a kind of clamp degree of lip-rounding shape that improved, and be provided with the monkey wrench of Flexible spanner body locking mechanism, adopt the spanner of this structure not only to make snapping in of nut and return convenient, and changed stressed position and the direction of nut, thereby overcome the deficiency of the easy injuring part corner angle of prior art.

For achieving the above object, the utility model is by the following technical solutions:

A kind of monkey wrench, constitute by handle 1, Flexible spanner body 2, worm screw 3, worm screw steady pin 4, worm screw 3 is embedded in the handle by worm screw steady pin 4, Flexible spanner body 2 sliding handle 1 tops that are embedded in, and by teeth groove on the inner edge 6 and worm screw 3 engagements, handle 1 is provided with the worm screw top and locks shank 14 admittedly, worm screw top is locked the screw rod 12 of locking shank 14 bottoms admittedly by the worm screw top in shank 14 sockets rotation thread bush 13 backs admittedly and is embedded in the handle 1, the top that shank 14 is locked on the worm screw top admittedly by pad 11 near worm screw 3.Handle 1 top extends out to form fixedly pulls body 5, fixedly pull and process clamping surface 7 and following clamping surface 8 two parts on the body 5, adjacent and the angle of two clamping surfaces is 120 °, recessed folding groove 9 is processed in the bottom of fixedly pulling clamping surface 8 under the body, clamping surface 10 on the Flexible spanner body 2 is the arc of evagination, and is relative with the last clamping surface 7 of fixedly pulling body 5.

Further technical scheme is that pad 11 is rubber cushions of writing board shape.

Adopt the spanner of this structure, lock shank 14 admittedly, guaranteed that simply, effectively the Flexible spanner body is difficult for sliding owing to be provided with the worm screw top; And the clamp mouth structure that recessed folding clamping surface cooperates with the arc clamping surface, not only can make the clamp mouth openr, make things convenient for snapping in and returning of nut, and the clamping surface on the Flexible spanner body 10 is cambered surfaces, regardless of the nut size that snaps in the clamp mouth, all just withstands on the centre at nut edge, do not contact with corner angle, pull fixedly that clamping surface has only covered part nut seamed edge under the body, improved the stressing conditions of nut corner angle, may being reduced greatly of damage corner angle.

Below in conjunction with drawings and Examples the utility model is further elaborated.Protection domain of the present utility model includes but are not limited to accompanying drawing and the disclosed content of embodiment.

Description of drawings

The structural representation of Fig. 1, existing common wrench;

Fig. 2, perspective exploded view of the present utility model;

Fig. 3, use schematic diagram of the present utility model.

The specific embodiment

As Fig. 2, shown in Figure 3, handle 1 top extends out to form fixedly pulls body 5, facade is adjacent and angle is the folding face that 120 ° two planes are constituted in it, form and fixedly pull clamping surface 7 and following clamping surface 8 on the body, the part that following clamping surface 8 is held on earth from the middle part is recessed, form recessed folding groove 9, Flexible spanner body 2 sliding handle 1 tops that are embedded in, the clamping surface 10 of Flexible spanner body 2 is the arc of evagination, relative with the last clamping surface 7 of fixedly pulling body, worm screw 3 is placed in inside, handle 1 top by worm screw steady pin 4, teeth groove 6 engagements with on Flexible spanner body 2 inner edges also are provided with a top fixed pin body 14 in worm screw 3 lower ends on the handle 1, top fixed pin body 14 tops are plate shaped rubber cushion 11, afterbody has screw rod 12, and rotation thread bush 13 is socketed on the screw rod 12.

During use, fastenings such as nut be stuck in Flexible spanner body 2 and fixedly pull between the body 5, by fixedly pull clamping surface 7 on the body, the clamping surface 10 of clamping surface 8 and Flexible spanner body 2 fix down, after adjusting finishes, screw top fixed pin body 14, promptly guaranteed the size of clamp mouth opening size; At this moment, rotating spanner just can drive nut, after spanner turns over certain angle, spanner need be broken away from nut and also snap in from original position again, because the arc shape of clamping surface 10 on the Flexible spanner body, it is wide to make embedding press from both sides mouthful opening, returns and snap in all to be easy to; In the process of rotation, regardless of the nut size that snaps in the clamp mouth, the clamping surface 10 of Flexible spanner body 2 all just withstands on the centre at nut edge, and following 9 in the face of embedding folder of fixedly pulling body has covered the part seamed edge, effectively improve the stressing conditions of corner angle, reduced the possibility that corner angle are damaged.

Claims

1, a kind of monkey wrench, by handle (1), Flexible spanner body (2), worm screw (3), worm screw steady pin (4) constitutes, worm screw (3) is embedded in the handle by worm screw steady pin (4), sliding handle (1) top that is embedded in of Flexible spanner body (2), and by teeth groove on the inner edge (6) and worm screw (3) engagement, it is characterized in that handle (1) is provided with the worm screw top and locks shank (14) admittedly, worm screw top is locked the screw rod (12) of locking shank (14) bottom admittedly by the worm screw top in shank (14) socket rotation thread bush (13) back admittedly and is embedded in the handle (1), the top that shank (14) is locked on the worm screw top admittedly by pad (11) near worm screw (3); Handle (1) top extends out to form fixedly pulls body (5), fixedly pull and process two clamping surfaces (7) and (8) on the body (5), adjacent and the angle of two clamping surfaces is 120 °, recessed folding groove (9) is processed in the bottom of fixedly pulling clamping surface under the body (8), clamping surface (10) on the Flexible spanner body (2) is the arc of evagination, and is relative with the last clamping surface (7) of fixedly pulling body (5).

2, monkey wrench as claimed in claim 1 is characterized in that described pad (11) is the rubber cushion of writing board shape.