CN2132595Y

CN2132595Y - Multi-surface sleeve head of box spanner

Info

Publication number: CN2132595Y
Application number: CN 92228099
Authority: CN
Inventors: 柯杰瑞
Original assignee: Qihe Tool Factory Co ltd
Current assignee: Qihe Tool Factory Co ltd
Priority date: 1992-07-22
Filing date: 1992-07-22
Publication date: 1993-05-12
Anticipated expiration: 2002-07-22

Abstract

The utility model relates to a multi-surface sleeve head of a box spanner. The multi-surface sleeve head of a box spanner is a sleeve head which forms an inserting tube end and a screwing tube end, wherein, a periphery whose flat surfaces and cambered surfaces are adjacent and are continuously arranged is formed outside the screwing tube end, which facilitates formation of unsmoothness; in addition, the fingers of the operator can clamp any group of corresponding flat surfaces to obtain better rotation torsional force so that before the spanner is inserted with the sleeve head, the screw cap or the screw nut can be first screwed in through the sleeve head with bare hands. Or after the spanner loosens the screw cap or the screw nut, barehanded loosening operation can also be carried out.

Description

Multi-surface sleeve head of box spanner

The utility model is relevant for a kind of collet head of box spanner, particularly a kind of multiaspect collet head.

The collet head 1(of box spanner was referring to shown in Figure 1 in the past) its integral body can be divided into grafting pipe end 2 and be spirally connected pipe end 3, the pipe end 2 of wherein pegging graft is used for pegging graft with ratchet spanner (figure does not show), the pipe end 3 that is spirally connected then is used for the fit with nut or nut, yet this structure has following shortcoming:

(1) generally speaking, both hands are to be stained with greasy dirt often in the middle of work, so in the time will nut being made in advance cover closing operation in free-hand mode with collet head 1, puzzlement unable to do what one wishes is often arranged, the outer peripheral face of collet head 1 all is slick and sly cambered surfaces, just is difficult to provide the twisted planar of the cramping application of force at all.

(2) with regard to collet head 1 in the past, operation when it uses is must be just feasible with cooperating of ratchet spanner, but mode with general work group work, if do not possess the words of many ratchet spanneres, just can not divide the work operation simultaneously, thereby cause other various spanner (opening, plum blossom or general-purpose) to have or not the puzzlement on the ground of force, because these instruments can't produce effective cramping twisting action to collet head 1.

(3) when collet head 1 being taken off from work package, or when instrument cases take out, if careless slightly and it is dropped in hand, then no matter ground would be smooth or the inclined-plane, very easily quicken to be rolled at a distance with its slick and sly outer circumference surface, and cause the inconvenience of seeking even losing.

The purpose of this utility model is that a kind of multiaspect collet head of box spanner is being provided, the outer peripheral face of one end of itself and nut or nut fit, be to form with plane, cambered surface adjacency and continuous mode, like this, be convenient to free-hand or reverse with the spanner cramping of other form, and then, even the ground of dropping also can effectively stop and roll away and lose.

The purpose of this utility model reaches as follows: a kind of multiaspect collet head of box spanner, be integrally formed and have the body of two different tube diameters, one end of body is the grafting pipe end, and the other end of body is the pipe end that is spirally connected, and is inner hexagonal hole in the hole of the pipe end that is spirally connected; The outer peripheral face of pipe end of being spirally connected be formed with plane, cambered surface in abutting connection with and continuously arranged periphery.

The purpose of this utility model can also following mode reach: the plane of the outer peripheral face of the described pipe end that is spirally connected and cambered surface become radially with even number arranges accordingly.

The pairing outer peripheral face of the interior angle of the inner hexagonal hole of the described pipe end that is spirally connected preferably is the place, place of described cambered surface just.

The open end of the described pipe end that is spirally connected is by being formed with the lead angle inclined-plane outwardly in its hole.

The utility model is now enumerated preferred embodiment and is cooperated diagram, and after being described in detail in, wherein diagram is respectively:

Fig. 1 is the schematic perspective view of collet head in the past.

Fig. 2 is the schematic perspective view of the utility model preferred embodiment.

Fig. 3 is the operation chart of the utility model preferred embodiment.

Fig. 4 is another operation chart of the utility model preferred embodiment.

At first, see also shown in Figure 2, the multiaspect collet head 10 of box spanner of the present utility model is integrally formed and has the body of two different tube diameters, and grafting pipe end 11 wherein is used for and the ratchet spanner inlay card, and the pipe end 12 that is spirally connected of the other end is used for and nut or nut fit; Wherein:

Please cooperate shown in Figure 3ly, grafting pipe end 11 is for rectangular column 21 inlay cards of ratchet spanneres 20, this and in the past mode of operation and indistinction.

Be spirally connected in pipe end 12 its holes with the same in the past, be formed with inner hexagonal hole 120, but at its outer peripheral face is by plane 121, cambered surface 122 adjacency and continuous mode form, plane 121 and cambered surface 122 become radially with even number arranges accordingly, at this moment, and make just inner hexagonal hole 120 interior angle 120 ' the corresponding outer peripheral face that comes out be the place, place of cambered surface 122, locate enough abundant material position to keep interior angle 120 ', accordingly, the position of the inner hexagonal hole 120 corresponding with plane 121 is hex surfaces 120 in it "; in addition, be spirally connected the end face of pipe end 12 and by the hole in form lead angle inclined-plane 130 outwardly to eliminate the acute angle that plane 121 and cambered surface 122 handing-over places may occur.

The utility model advantage of collet head more in the past is: after unclamping at ratchet spanner 20 inlay card multiaspect collet heads 10 and with nut (figure does not show), just can exercise ratchet spanner 20 earlier separates with 10 disengagements of multiaspect collet head, and only allow the be spirally connected pipe end 12 and the nut fit of multiaspect collet head 10, this moment operating personnel just can banjo splint be pressed in carry out on any one group of radially corresponding plane 121 twisted, so that nut is screwed out on screw, thus can overcome in the past can't free-hand operation deficiency.

Please consult explanation shown in Figure 4 again, shown in ratchet spanner 20(the 3rd figure) its time spent arranged in addition, the staff also can open-end wrench 30(or general-purpose, double offset ring spanner) cramping reverses to the plane 121 of arbitrary group of correspondence of multiaspect collet head 10, in such event, can say a breakthrough innovation has been arranged on the use form of sleeve 10, thereby make the applicability of sleeve 10 just more extensive, and be unlikely to have again non-ratchet spanner 20 infeasible embarrassed looks.

What speak of at last is, when multiaspect sleeve 10 of the present utility model drops ground accidentally, with the side face of its unique plane that forms 121 with cambered surface 122 handing-over, so because be not that cylinder is difficult for lift-over, have never again and roll away and cause the puzzlement that must search.

In sum, multiaspect sleeve of the present utility model is succinct novel structure, simultaneously, can be convenient to direct free-hand operation again or cooperate the use of different spanners, and be the fine piece of writing of innovation really.

Claims

1, a kind of multiaspect collet head of box spanner is integrally formed and have the body of two different tube diameters, and an end of body is the grafting pipe end, and the other end of body is the pipe end that is spirally connected, and is inner hexagonal hole in the hole of the pipe end that is spirally connected; It is characterized in that: the outer peripheral face of the pipe end that is spirally connected is formed with plane, cambered surface adjacency and continuously arranged periphery.

2, according to the multiaspect collet head of the described box spanner of claim 1, it is characterized in that: the plane of the outer peripheral face of the described pipe end that is spirally connected and cambered surface become radially with even number arranges accordingly.

3, according to the multiaspect collet head of the described box spanner of claim 2, it is characterized in that: the pairing outer peripheral face of the interior angle of the inner hexagonal hole of the described pipe end that is spirally connected is the place, place of described cambered surface just.

4, according to the multiaspect collet head of the described box spanner of claim 1, it is characterized in that: the open end of the described pipe end that is spirally connected is by being formed with the lead angle inclined-plane in its hole outwardly.