Ratchet wheel screwdriver reversing device

Abstract

The invention provides a ratchet wheel screwdriver reversing device which comprises a wheel placing seat and a ratchet wheel rod. The wheel placing seat is arranged at the front end of a ratchet wheel screwdriver, a containing hole is formed in the wheel placing seat, symmetrical containing grooves are connected to the two sides of the containing hole, the containing hole is connected with a moving groove between the two containing grooves, a clamping block is arranged in each containing groove, unidirectional clamping teeth are arranged on one side of each clamping block, and the side, opposite to the side on which the clamping teeth are arranged, of each clamping block abuts against the wall face of each containing groove through a spring; the ratchet wheel rod is formed in the mode that a ratchet gear wheel is arranged on a rod body in an encircling mode, an inserting groove connected with a screwdriver head in an inserting mode is formed in the front end of the rod body, the ratchet gear wheel is arranged in the containing hole, and ratchets of the ratchet gear wheel are meshed with the clamping teeth of the clamping block; the wheel placing seat is sleeved with a cover lid, a cover hole is formed in the cover lid, the rod body penetrates through the cover hole, an abutting block is arranged at the position corresponding to the moving groove, of the inner side of the cover lid, the abutting block is arranged on the wheel placing seat along with the cover lid in a sleeved mode to stretch in the moving groove, and the cover lid rotates relative to the wheel placing seat. By means of the ratchet wheel screwdriver reversing device, the convenience of production is improved, abrasion is reduced effectively, the smooth degree of in and out of the clamping block is increased, and material cost of the wheel placing seat is reduced.

Description

technical field [0001] The invention relates to a blocking block inside the cover, which can push and engage the locking blocks on both sides of the ratchet wheel when the cover rotates relative to the ratchet seat, and use the retraction or engagement of the locking blocks to switch the pulling direction of the screwdriver device, in particular to a ratchet screwdriver reversing device. Background technique [0002] Present ratchet screwdriver is like Chinese Taiwan Patent Certificate No. M255766 "Structure Improvement of Screwdriver". The grooves are connected, and the two accommodation grooves form an included angle with each other, each accommodation groove has two parallel sides, and a retainer groove is arranged at the front end of the accommodation hole; [0003] The first ratchet is provided with a ring tooth, and the ring tooth of the ratchet can be accommodated in the accommodating hole; the second tooth forms a locking tooth on one side that can engage with the r...

AI Technical Summary

Problems solved by technology

[0006] The effect of switching the pulling direction of the aforementioned ratchet driver is that the protrusion of the upper cover is forced to resist the protrusion of the tooth, so that the tooth against which the protrusion is pressed is pushed away from the ratchet due to the rotation of the upper cover, but the tooth In production, the bumps on it need to be formed through additional processing, and in use, the bumps of the teeth are thin in thickness and small in size, so the structure is relatively poor. The wear is damaged due to the thrust of the ratchet screwdriver, and even the ratchet screwdriver loses the function of switching the pulling direction

[0007] In view of the fact that the protrusions of this kind of ratchet driver teeth need additional processing, production is inconvenient, and the structure is fragile and easy to be damaged by wear and tear, the inventor decided to make improvements.

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