CN201872118U

CN201872118U - Wrench

Info

Publication number: CN201872118U
Application number: CN201020638290XU
Authority: CN
Inventors: 王佳力
Original assignee: NINGBO HYWAY TOOLS MANUFACTURE CO Ltd
Current assignee: NINGBO HYWAY TOOLS MANUFACTURE CO Ltd
Priority date: 2010-11-24
Filing date: 2010-11-24
Publication date: 2011-06-22
Anticipated expiration: 2020-11-24

Abstract

A wrench comprises a wrench head (1) and a wrench handle (2), wherein the wrench handle (2) is rotatably connected with the wrench head (1). The wrench is characterized in that an internal hexagonal socket (4) is disposed in a cavity (3) in the center of the wrench head (1), ring teeth (5) are arranged on the outer periphery of the internal hexagonal socket (4), a vacant cavity (6) is reserved at a position on the wrench head (1) close to a connecting portion, a latch (7) is disposed in the vacant cavity (6), and a spring (8) is disposed between the latch (7) and the wrench head (1) so that the end of the latch (7) meshes with the ring teeth (5) constantly. The wrench is simple in structure, low in cost and convenient in use.

Description

A kind of spanner

Technical field

The utility model relates to a kind of spanner.

Background technology

The related industry of present hand-operated tools has the developing history of significant period of time, is an integral body for traditional unidirectional box spanner, can not use at narrow space, and operation has been brought inconvenience.

As the patent No. is that the Chinese patent (notification number is CN1370659) of CN02103964.X provides a kind of ratchet spanner with anti-jamming and referential function, it includes: a wrench body, it has storage tank and the accommodation space that is interconnected, and is provided with a perforation that is communicated in storage tank in the spoke district of an edge of wrench body at least; One fixture block, it can be placed in the storage tank of wrench body; One fixture, it is arranged in perforation and fixture block in the wrench body spoke district, and with in the spacing storage tank that is incorporated into wrench body of fixture block, and in the spoke district of an edge of wrench body, form one and indicate mark one ratchet-gear wheel, its side surface peripheral region is equipped with several ratchets; One ratchet piece, one end are provided with several ratchets and are meshing with each other with the ratchet of ratchet-gear wheel, and it can be placed in the storage tank of wrench body, and an elastomer is arranged between ratchet piece and fixture block.The user can discern fixture is learnt spanner in the formed sign mark of edge of wrench body switching direction, and mutual when stuck when ratchet-gear wheel and ratchet piece, can be pulled by top mutual between ratchet piece and fixture block, in order to do the ratchet piece can be broken away from ratchet-gear wheel.Shortcoming is fastening inadequately, skid easily, and driving end can not rotate.

As the patent No. is that the Chinese patent (notification number is CN201432262) of CN200920130685.6 provides a kind of spanner, it structurally comprises, wrench body, swivel mount and clamping element, wherein, this wrench body is provided with a cavity, this cavity is equipped with some concavo-convex all around again, this swivel mount is the inside that can be rotatably set in this cavity, and this clamping element is arranged on this swivel mount, by some these projectioies this clamping element is advanced to the middle part of this swivel mount direction, when the utility model is inserted at a handle of a knife, clamp this handle of a knife by this clamping element, for people provide a kind of simple to operate, spanner easy to use, and, after it is inserted in a handle of a knife, under the situation of it goes without doing any auxiliary movement, only need rotation can realize that handle of a knife is to the clamping of cutter and the effect of unclamping, its complex structure, driving end can not rotate, so be difficult for promoting.

The utility model content

Technical problem to be solved in the utility model is the present situation at prior art, and a kind of a kind of spanner simple in structure, with low cost, easy to use is provided, can the rotating spanner head when solving operation, thus use convenient comfortable.

The utility model solves the problems of the technologies described above and the technical scheme that adopts is: a kind of spanner, it includes driving end, pinch bar, pinch bar is to be connected rotationally with driving end, it is characterized in that: be provided with interior Hexagonal jacket in the cavity in the middle of the described driving end, interior Hexagonal jacket outer peripheral face is provided with the ring tooth, driving end has vacant chamber near connecting portion, be provided with latch spare in the vacant chamber, be provided with spring between latch spare and the driving end, make the end of latch spare and ring tooth keep engagement trend.

As improvement, described being rotationally connected is that the pinch bar upper end is provided with a link slot, the sidepiece of link slot is provided with connecting hole and screwed hole, pass the connecting hole of link slot and the through hole of screwed hole and driving end is connected and fixed with screw, the link slot bottom is provided with spring eye, be provided with spring and fastener in the spring eye, make that latch keeps engagement trend on the tail end of fastener and pinch bar.

Further improve, described in the surface, every limit of Hexagonal jacket adopt the evagination plane, be groove between the evagination plane, the surface has 360 degree cannelures in the interior Hexagonal jacket, in inlay snap ring.

At last, be provided with elastic collar between the cavity veneer of described interior Hexagonal jacket and driving end is interior, Hexagonal jacket and driving end link together in making.

Compared with prior art, advantage of the present utility model is: driving end and pinch bar are to be rotatably connected, and be more reasonable and practical, can positive and negatively use, need not special ratchet device, be adapted at narrow space and use, simple in structure, cheap, easy to use.

Description of drawings

Fig. 1 is a kind of STRUCTURE DECOMPOSITION figure of the present utility model.

Fig. 2 is a stereogram of the present utility model;

Fig. 3 is a structural representation of the present utility model;

Fig. 4 is a structure cutaway view of the present utility model;

Fig. 5 is the cutaway view of driving end;

Fig. 6 is a structure cutaway view of the present utility model.

Figure number explanation: 1, driving end, 2, pinch bar, 3, cavity, 4, interior Hexagonal jacket, 5, ring tooth, 6, vacant chamber, 7, latch spare, 8, spring, 9, link slot, 10, spring eye, 11, fastener, 12, snap ring, 13, elastic collar, 14, the evagination plane, 15, groove, 16, latch, 17, screw, 18, spring, 19, cannelure, 20, fluting.

The specific embodiment

Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.

As Fig. 1-6 signal, a kind of spanner, it includes driving end 1, pinch bar 2, interior Hexagonal jacket 3, spring 8, critical pieces such as snap ring 12 and elastic collar 13, wherein, described driving end 1 is connected rotationally with pinch bar 2, be exactly, the upper end of pinch bar 2 is provided with a link slot 9, the left side of link slot 9, the right side has connecting hole and screwed hole, have through hole in the tail end of driving end 1, like this, can pass the connecting hole of link slot 9 successively with screw 17, the through hole of driving end 1, be connected with the screwed hole of link slot 9, make the tail end of driving end 1 be enclosed within on the screw 17 and can rotate, further, the bottom of link slot 9 is provided with spring eye 10, be provided with spring 18 and fastener 11 in the spring eye 10, make the latch 16 on the tail end outer surface of fastener 11 and driving end 1 keep the trend of engagement.There is a cavity 3 centre of driving end 1, Hexagonal jacket 4 in being provided with in the cavity 3, be set to encircle tooth 5 on interior Hexagonal jacket 4 outer peripheral faces, driving end 1 has vacant chamber 6 near connecting portion, be provided with latch spare 7 in the vacant chamber 6, be inlaid with a spring 8 on the tail of latch spare 7, the two ends of spring are connected in the surface holes of driving end 1, thereby between latch spare 7 and driving end 1, be provided with spring 8, make the end and the ring tooth on the interior Hexagonal jacket 45 of latch spare 7 keep engagement trend, and evagination plane 14 is adopted on the surface, every limit of interior Hexagonal jacket 4, it between the evagination plane 14 groove 15, the surface has 360 degree cannelures 19 in the interior Hexagonal jacket 4, inlays snap ring 12 in the cannelure 19, is convenient to carry out holding with Hexagonal jacket and cooperates, at last, veneer at the cavity 3 of interior Hexagonal jacket 4 and driving end has involutory fluting 20, is provided with elastic collar 13 between in the fluting 20, and Hexagonal jacket 4 and driving end 1 link together in making.

Its operation principle is such, rotating spanner head 1 firmly, make driving end 1 can overcome the strength of spring 18, rotate to a suitable angle with respect to pinch bar 2, interior Hexagonal jacket 4 with driving end 1 is enclosed within on the Hexagonal jacket then, rotary spanner handle 2, because the ring tooth 5 holding effects of latch spare 7 and interior Hexagonal jacket 4, spanner can be rotated according to a direction of rotation, thereby tighten or unclamp nut in the Hexagonal jacket, in the time of the needs reverse rotation, if with spanner turn use just passable, very convenient.

Claims

1. spanner, it includes driving end (1), pinch bar (2), pinch bar (2) is to be connected rotationally with driving end (1), it is characterized in that: be provided with interior Hexagonal jacket (4) in the cavity (3) in the middle of the described driving end (1), interior Hexagonal jacket (4) outer peripheral face is provided with ring tooth (5), driving end (1) has vacant chamber (6) near connecting portion, be provided with latch spare (7) in the vacant chamber (6), be provided with spring (8) between latch spare (7) and the driving end (1), make the end of latch spare (7) and ring tooth (5) keep engagement trend.

2. a kind of spanner according to claim 1, it is characterized in that: described being rotationally connected is that the upper end of pinch bar (2) is provided with a link slot (9), the sidepiece of link slot (9) is provided with connecting hole and screwed hole, pass the connecting hole of link slot and the through hole of screwed hole and driving end (1) is connected and fixed with screw, link slot (9) bottom is provided with spring eye (10), be provided with spring and fastener (11) in the spring eye (10), make that latch (16) keeps engagement trend on the tail end of fastener (11) and pinch bar (2).

3. a kind of spanner according to claim 1, it is characterized in that: evagination plane (14) is adopted on the surface, every limit of Hexagonal jacket (4) in described, between the evagination plane (14) groove (15), in the interior Hexagonal jacket (4) surface have 360 the degree cannelures (19), in inlay snap ring (12).

4. a kind of spanner according to claim 1 is characterized in that: be provided with elastic collar (13) between in cavity (3) veneer of described interior Hexagonal jacket (4) and driving end (1), interior Hexagonal jacket (4) and driving end (1) are linked together.