Hand tools

Abstract

The present invention relates to hand tool comprising head and handle with superposed coupling in between. The coupling includes locking block capable of being slided for rotating the head in some angle to the handle, and the locking block is non-circular block and has meshing end, hole with raised wall and dialing rod with raised end for realizing locking and releasing control. Compared with available technology, the present invention has the advantages of simple structure, easy machining and assembling, precise locking and releasing, etc.

Description

technical field [0001] The invention relates to a hand tool. The head and the handle of the hand tool can be locked or released by mutual rotation in an angled shape. Background technique [0002] Existing head and handle are superimposed axle joints and can be mutually rotated hand tool, one of the typical examples of lockable or loose control between its rotations is China Taiwan Patent No. 542053 "Quick turn wrench Angle Positioning Structure Improvement" patent case, the patent reveals that the drive part is provided with an inner ratchet shaft hole, and the trigger part is provided with a shaft seat corresponding to the shaft hole, and the middle and both sides of the shaft seat are provided with accommodation grooves for pivoting. The toggle button with a fixed angle structure and the locking block with external ratchets; the toggle button and the locking block are both threaded with pins, and the toggle button forms a seesaw-like push, and the pressed toggle can be li...

AI Technical Summary

Problems solved by technology

This case improved the defect of many components in typical example 1, but the inward retraction of the locking block has no inward and outward thrust, making it difficult to control the release accurately. The same shortcomings are also found in the Taiwan patent announcement of typical example 3. No. 592,899 "Composite Wrench Structure Improvement" patent case, the difference between this case and the typical example 2 is that the control part with a deeper depression and a shallower depression forms a rotatable type, and the shallow depression can be pushed against the card. The locking block slides out to form an engaged locking state. In the deep concave position, the locking block has a retractable space and disengages. There is no positioning function between them and it is easy to rotate arbitrarily. The components of typical examples 2 and 3 are also complicated.

Images