CN105751120A - Steering disc used for wrench - Google Patents

Abstract

The invention provides a novel and practical tool used for a wrench. A steering disc is internally provided with two adjacent semi-octagonal inner holes and opening parts are communicated; a thread hole is formed in the right end of the steering disc; the steering disc is connected with a left-end thread part of a foldable handle in a thread connection manner. The steering disc has the characteristics of simple structure, simplicity and convenience for operation, high working efficiency and the like; the novel utilization tool is connected with a wrench body to operate, and rotation in forward and backward directions can be easily finished under the conditions that relatively large fastening force and loosening force are needed, and a force utilization dead angle is not generated, so that the steering disc is a novel and practical invention which is convenient and efficient.

Description

A kind of commutation board on spanner

Technical field

The present invention is a kind of reversing arrangement on spanner.

Background technology

At present in spanner field, most spanners are all that handle is connected with wrench body, due to the environmental limitation that spanner uses, very easily produce dead angle, and do not possess commutation function, need during use to be loaded on from bolt takes off by spanner frequently, long-time use is easily tired, greatly reduce service efficiency, the spanner capable of reversing used in the market is mostly ratchet spanner, the power that can bear is less, still need to when tightening change one spanner into, and it is difficult to repair after damaging, workman is when preparation tool, typically require preparation two set instruments, add use cost and more volume need to be taken.

Summary of the invention

It is an object of the invention to overcome above deficiency, it is provided that the commutation board on a kind of Novel practical spanner.nullDuring use，By commutation board with spanner being connected，Then wrench body is assemblied in bolt，Agree with mutually with the octagon column in the hole from all directions of half in commutation board with wrench body upper end，Rotary spanner handle，Then can realize the clamping to chuck and the operation unclamped，When needs rotate continuously，Have only to half octagonal opening direction in commutation board separated with commutation board by handle，Handle opposite direction is rotated to an angle，Agree with from newly making wrench body and commutation board，Then can complete the operation of rotation continuously，Octahedral mode is agreed with owing to adopting，Wrench body and handle can be made again to agree with so rotating maximum 45 °，Can avoid completely producing firmly dead angle，Posture need not be additionally adjusted again when making workman use，Time saving and energy saving，Simultaneously the present invention is provided with two and agrees with half hole from all directions，When stepping up，What use commutation board steps up mouth，When unclamping，Mouth is unclamped in use;Commutation board adopts disc design, so as to can bear bigger operating physical force in use, is unlikely to deform, and damages, is thus greatly saved workman's muscle power, improves work efficiency.

Accompanying drawing illustrates:

Fig. 1 is a kind of commutation board part sketch on spanner.

Claims (2)

1. the commutation board on spanner.

2.The structure of the present invention and size.