The open-end wrench that fast reciprocating is pulled

The open-end wrench that fast reciprocating is pulled

  • CN 102,166,740 B
  • Filed: 02/25/2010
  • Issued: 10/14/2015
  • Est. Priority Date: 02/25/2010
  • Status: Active Grant
First Claim
Patent Images

1. the open-end wrench pulled of fast reciprocating, is characterized in that, include:

  • A body, it has the folder jaw that a grip part and are located at described one end, grip part, described folder jaw is formed with first jaw separated from one another and second jaw in contrast to one end of described grip part, described folder jaw forms a jaw larynx between the first jaw and the second jaw, described jaw larynx, first jaw and the second jaw around space form an accommodation working substance pull mouth, working substance has six stress surfaces, and annular arrangement is sequentially the first forward stress surface to the 6th forward stress surface counterclockwise, the first described jaw has in the face of pulling mouth and towards a force application plane of the second described jaw end, described force application plane can correspond to the first forward stress surface of working substance, an arc chute is provided with in described folder jaw, described chute has an arcs of recesses slippage wall, one is positioned at the first supporting walls above described slippage wall and one and is positioned at below described slippage wall and relative to the second supporting walls of the first described supporting walls, the slippage wall of described chute is not offered other pore space structure and is concave arc planar, a guide posts is provided with in described chute, the two ends of described guide posts are separately fixed at the first described supporting walls and the second described supporting walls and make described guide posts be installed in described chute,A slide block, described slide block is located in the chute of described body folder jaw, and relative camber line sliding relationship can be produced, the side of described slide block forms the slide surface of a convex, the curvature of the slide surface of described slide block equals the curvature of the slippage wall of described chute, the slide surface of described slide block can slide on the slippage wall of described chute, the slide surface of described slide block is not offered other pore space structure and is convex arc planar, described slide block gives prominence to described chute in contrast to the side of slide surface outer and form a first switching plane, when described slide block is at physical slot, first switching plane of described slide block can correspond to the 4th forward stress surface of working substance, the top of described slide block forms an end face, the below of described slide block forms a bottom surface, described slide block is provided with the guide channel that runs through end face and bottom surface, the curved shape of described guide channel, and do not offer other pore space structure in described guide channel, described guide channel can stretch through interior for described guide posts with the chute prevented described in described slide block disengaging, described guide channel has an abutment end and a top and pulls and hold, when described slide block is at physical slot, the abutment end of described guide channel contacts with described guide posts,An elastic device, the top that its two ends are resisted against described guide posts and described guide channel is respectively pulled between end, described slide block is enable to automatically return to physical slot, described elastic device includes an elastomer be located in described slide block guide channel, it is high that described guide channel has a groove, described guide channel has a groove width, the elastomer of described elastic device has a height after being located in described guide channel, the groove that described elastomeric height is not more than described guide channel is high, described elastomeric height is greater than the groove width of described guide channel, and elastomeric height to be greater than the guide channel groove of 0.5 times high, elastomer would not depart from original position by arbitrary overturn in guide channel,When user is for carrying out switching operation, make working substance enter folder jaw pull in mouth, elastic device compression in slide block, slide block camber line is moved, abutment end and the guide posts of guide channel are spaced apart, allow slide block the first switching plane can automatic attaching at the 4th forward stress surface of working substance.

View all claims
    ×
    ×

    Thank you for your feedback

    ×
    ×