CN2657863Y

CN2657863Y - Wrench

Info

Publication number: CN2657863Y
Application number: CN 03284236
Authority: CN
Inventors: 陈恩虎; 李忠; 周桂宝
Original assignee: 陈恩虎
Priority date: 2003-09-05
Filing date: 2003-09-05
Publication date: 2004-11-24
Anticipated expiration: 2013-09-05

Abstract

The utility model discloses a wrench, which comprises a handle and a wrench mouth, the utility model is characterized in that the two wrench mouthes equal in size are arranged separately on the two annular splints, the handle is connected with the wrench seat, the front end of the wrench seat is an annular sliding positioning board, the two splints are sliding connected on the positioning board through a plurality of evenly distributed positioning pins, a gear ring is arranged on the periphery of the upper splint, a screw shaft is arranged on the wrench seat, a pallet is mounted on the screw shaft through a torsional spring and a hanging spring nut. When the utility model works, as long as the wrench mouth is fitted over the corresponding nut, turn the handle to drive the nut turning, as long as the turning handle is turned again, the nut just can be tighten or loosen continuously, and the working efficiency is greatly increased.

Description

A kind of spanner

Technical field:

The utility model relates to a kind of mechanical maintenance tool in use, and particularly a kind of spanner that can twist continuously is widely used in the flight-line maintenance personnel and uses when the degree of tightness nut, can improve the work effect significantly.

Background technology:

Present various large-scale spanner is all formed by pulling mouth and handle, during the degree of tightness nut, is subjected to the restriction of workpiece, can only rotating certain angle, take off spanner then and overlap top nut again and rotate, just can reach the purpose that tightens or loosens nut, influence operating efficiency through repeatedly reversed torsion.

Summary of the invention:

The purpose of this utility model is a kind of workspace limits that is not subjected to of design, can twist the spanner of increasing work efficiency continuously.

The technical solution of the utility model is such, it includes handle and pulls mouth, it is characterized in that: two equal-sized mouths of pulling are located at respectively on two annular clamping plate, be connected with the spanner seat on the handle, spanner seat front end is a ring-type slip location-plate, and two clamping plate are slidingly connected on the location-plate by a plurality of uniform alignment pins, are provided with gear ring on the train wheel bridge periphery, on the spanner seat, be provided with a spiral shell axle, by torsion spring and extension spring nut ratchet be installed on the spiral shell axle.As long as the utility model the time will be pulled muzzle on corresponding nut in work, after pulling handle and driving nut and rotate,, can tighten continuously or unclamp nut as long as rotary handle rotates again, operating efficiency is obviously improved.

Description of drawings:

Fig. 1 is a structural representation of the present utility model; Fig. 2 is the structural representation of spanner seat; Fig. 3 is the structural representation of lower plate; Fig. 4 is the structural representation of train wheel bridge.Among the figure, 1. slip location-plate, 2. train wheel bridge, 3. alignment pin, 4. gear ring, 5. ratchet, 6. location spiral shell axle is 7. hung the spring nut, 8. spanner seat, 9. handle, 10. afterburning delthyrium, 11. boosting-rods.

The specific embodiment:

The utility model is that two equal-sized mouths of pulling are located at respectively on two annular clamping plate, be connected with spanner seat 8 on the handle 9, spanner seat front end is the slip location-plate 1 of circular opening, two clamping plate are slidingly connected on the location-plate 1 by 6 uniform alignment pins 3, on the periphery of train wheel bridge 2, be provided with gear ring 4, on spanner seat 8, be provided with a spiral shell axle 6, by torsion spring and extension spring nut 7 ratchet 5 be installed on the spiral shell axle.As long as the utility model will be pulled muzzle on corresponding nut when work, after pulling handle 9 and driving nuts and turn an angle, handle spanner seat 1 and ratchet 5 revolutions during rotary handle again, and the last lower plate that is enclosed within on the nut is motionless, ratchet had been stuck under the effect of bashful spring on the tooth of gear ring 4 when revolution stopped, and continued to drive nut when pulling handle again and rotated, so repeatedly, can tighten continuously or unclamp nut, operating efficiency is improved greatly.In order to strengthen the rotation strength of spanner, can in the afterburning hole 10 of handle end, insert a boosting-rod 11, can reach the labour-saving purpose.

Claims

1, a kind of spanner, it includes handle and pulls mouth, it is characterized in that: two equal-sized mouths of pulling are located at respectively on two annular clamping plate, be connected with the spanner seat on the handle, spanner seat front end is a ring-type slip location-plate, and two clamping plate are slidingly connected on the location-plate by a plurality of uniform alignment pins, are provided with gear ring on the train wheel bridge periphery, on the spanner seat, be provided with a spiral shell axle, by torsion spring and extension spring nut ratchet be installed on the spiral shell axle.