Reversing switch of electric tool

Abstract

The invention discloses a reversing switch of an electric tool. The reversing switch comprises a button, a base, an inner base, a push rod, a reversing base and a reversing shift handle, wherein the push rod is connected with the button; the reversing base is arranged above the inner base; the reversing handle is arranged above the reversing base; a first terminal of which one end extends out of the base and a second terminal of which one end extends out of the base are arranged in the reversing base; one end part of the first terminal is positioned between two end parts of the second terminal; the first terminal, the second terminal and the reversing base are integrated; one end part of a third terminal and one end part of a fourth terminal are arranged on the base respectively; the other end part of the third terminal and the other end part of the fourth terminal pass through a positioning groove and extend onto the reversing base; the end parts extending onto the reversing base are on the same plane as end parts of the first terminal and the second terminal in the reversing base; a V-shaped movable contact spring is hinged to the fourth terminal; a power supply terminal corresponding to the V-shaped movable contact spring is arranged in the base; a positioning plate is arranged above the reversing base; and a limiting device which is connected with the reversing shift handle is arranged above the positioning plate. The switch is easy to assemble, low in cost and accurate in reversing, has high reliability, and can be switched on automatically.

Description

technical field [0001] The invention relates to an electric tool switch, in particular to an electric tool switch with a reversing device. Background technique [0002] The reversing switch of commonly used electric tools includes a button, a base, a push rod set in the base and connected to the button, a reversing handle set inside the base, a lever set outside the base, and a connection reversing The connecting shaft of the shifting handle and the shifting rod, the reversing terminal group arranged in the base, the first reversing moving contact and the second reversing moving contact that are clamped on the reversing handle and contact with the reversing base The reversing switch with this structure is difficult to assemble, has a high defect rate and high cost, and poor contact is prone to occur during reversing operation, resulting in low reliability of the switch. Contents of the invention [0003] The problem to be solved by the present invention is to provide an e...

AI Technical Summary

Problems solved by technology

[0002] The reversing switch of commonly used electric tools includes a button, a base, a push rod set in the base and connected to the button, a reversing handle set inside the base, a lever set outside the base, and a connection reversing The connecting shaft of the shifting handle and the shifting rod, the reversing terminal group arranged in the base, the first reversing moving contact and the second reversing moving contact that are clamped on the reversing handle and contact with the reversing base The reversing terminals are assembled on the base respectively. The reversing switch with this structure is difficult to assemble, with high defect rate and high cost. Poor contact is prone to occur during reversing operation, resulting in low reliability of the switch.

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