CN201102211Y

CN201102211Y - One-way brake fork spanner

Info

Publication number: CN201102211Y
Application number: CNU2007201781579U
Authority: CN
Inventors: 林岩明
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-10-11
Filing date: 2007-10-11
Publication date: 2008-08-20
Anticipated expiration: 2017-10-11

Abstract

The utility model relates to a one-way braking solid wrench, comprising a handle; a ring spanner is arranged on the end of the handle; a solid spanner is arranged on the other end of the handle; the solid spanner comprises an upper pawl and a lower pawl; a sliding chute is respectively arranged in the upper arm and the lower arm of the solid spanner; the upper pawl and the lower pawl are respectively embedded into the two sliding chutes of the upper arm and the lower arm and capable of sliding along the sliding chute; a spring is arranged between the upper pawl and the sliding chute; the two ends of the spring are respectively propped a bottom side and in the locating groove of the upper pawl; a screw on the top of the solid spanner contacts with a limit sliding chute; the spring and a sliding block are arranged inside the limit sliding chute of the lower pawl; the sliding block is fixed by the screw on the bottom of the solid spanner; both ends of the spring are propped respectively on the sliding block and the limit sliding chute of the upper pawl. The beneficial effect of the one-way braking solid wrench is that the upper pawl and the lower pawl are pushed by the spring to keep a locknut; the wrench is not so easy to fall off automatically while using; the upper pawl and the lower pawl are capable of sliding to-and-fro in the sliding chute, thereby realizing the one-way braking and raising the efficiency.

Description

A kind of one-way brake fork spanner

Technical field

The utility model relates to a kind of fork spanner, particularly a kind of one-way brake fork spanner.

Background technology

Fork spanner comprises types such as common fork spanner, replaceable fork spanner, adjustable multi-functional fork spanner.Its range of application, efficient improve with regard to double offset ring spanner.But these spanners generally can not effectively prevent the unexpected landing of spanner in use, and its scope of application and efficient are greatly limited.

The utility model content

The purpose of this utility model provides a kind of one-way brake fork spanner, and existing fork spanner easily comes off to overcome, inefficient deficiency.

The purpose of this utility model is to be achieved through the following technical solutions:

A kind of one-way brake fork spanner, comprise handle, handle one end is provided with the plum blossom spanner, the handle other end is provided with slow-witted spanner, described slow-witted spanner comprises hock, following hock, respectively be provided with chute in two arms up and down of described slow-witted spanner, also can be in two chutes of two arms about described upward hock, following hock embed respectively along described chute slip; Described going up between hock and the chute is equipped with spring, and both ends of the spring withstands on respectively in the locating slot of chute bottom and last hock, and hock outwards slides in the promotion; The screw at described slow-witted spanner top contacts with the limit sliding chutes of last hock, prevents that hock from skidding off the chute of slow-witted spanner; In the limit sliding chutes of described hock down spring and slide block are housed, slide block is fixed by the screw of slow-witted spanner bottom, and both ends of the spring withstands on respectively on the limit sliding chutes of slide block and last hock, and hock inwardly slides in the promotion.

The beneficial effect of one-way brake fork spanner described in the utility model is: hock is promoted by spring up and down, keeps locking nut, and spanner is difficult for coming off voluntarily in use; Hock can reciprocatingly slide in the chute of slow-witted spanner up and down, has realized one-way brake, raises the efficiency.

Description of drawings

With reference to the accompanying drawings the utility model is described in further detail below.

Fig. 1 is the front view of one-way brake fork spanner described in the utility model;

Fig. 2 is the cutaway view of the slow-witted spanner of one-way brake fork spanner described in the utility model;

Among the figure:

1, plum blossom spanner; 2, handle; 3, slow-witted spanner; 3-1, last hock; 3-2, following hock; 3-3, screw; 3-4, spring; 3-5, slide block.

The specific embodiment

Shown in Fig. 1-2, the described one-way brake fork spanner of the utility model embodiment comprises handle 2, and handle 2 one ends are provided with plum blossom spanner 1, and handle 2 other ends are provided with slow-witted spanner 3, and described slow-witted spanner 3 comprises hock 3-1, following hock 3-2; Respectively be provided with chute in upper and lower two arms of described slow-witted spanner 3, also can slide in two chutes of two arms about the described hock 3-1 of going up, following hock 3-2 embed respectively along described chute; Between last hock 3-1 and the chute spring 3-4 is housed, spring 3-4 two ends withstand on respectively in the locating slot of chute bottom and last hock 3-1; The screw 3-3 at described slow-witted spanner 3 tops contacts with the limit sliding chutes of last hock 3-1; In the limit sliding chutes of described hock 3-2 down spring 3-4 and slide block 3-5 are housed, slide block 3-5 is fixed by the screw 3-3 of slow-witted spanner bottom, and spring 3-4 two ends withstand on respectively on the limit sliding chutes of slide block 3-5 and last hock 3-2.

The described one-way brake fork spanner of the utility model embodiment inserts nut after the angle of the slow-witted spanner 3 of adjustment when operation; When inserting, hock 3-1 inserts back hock 3-1 under the promotion of spring 3-4 and outwards slides until closely contacting with nut to sliding poor slides within the external force influence.This moment the one-way brake fork spanner that turns clockwise, last hock 3-1 closely contacts nut check with following hock 3-2 with nut under the promotion of spring 3-4; Behind the certain angle, rotate counterclockwise the one-way brake fork spanner, under external force influence on hock 3-1 to sliding poor slides within, following hock 3-2 is to sliding poor slide outside, with the nut loose fit, nut still is in locking state; At this moment, nut is if outwards skid off, and hock 3-1 outwards slides and closely contacts with nut under the promotion of spring 3-4, and then nut is tightened once more; Repeat clockwise, be rotated counterclockwise the one-way brake fork spanner, last hock 3-1 and following hock 3-2 reciprocatingly slide, and nut can be locked fully.

Claims

1, a kind of one-way brake fork spanner, comprise handle, handle one end is provided with the plum blossom spanner, the handle other end is provided with slow-witted spanner, it is characterized in that: described slow-witted spanner comprises hock, following hock, respectively be provided with chute in two arms up and down of described slow-witted spanner, also can be in two chutes of two arms about described upward hock, following hock embed respectively along described chute slip; Described going up between hock and the chute is equipped with spring, and both ends of the spring withstands on respectively in the locating slot of chute bottom and last hock; The screw at described slow-witted spanner top contacts with the limit sliding chutes of last hock; In the limit sliding chutes of described hock down spring and slide block are housed, slide block is fixed by the screw of slow-witted spanner bottom, and both ends of the spring withstands on respectively on the limit sliding chutes of slide block and last hock.