A switch opening and closing mechanism of an electric tool

Abstract

The invention discloses a switch on-off mechanism of an electric tool. A linkage mechanism and a structure principle of a double-button-controlled switch on-off mechanism in the prior art are quite complex, so that installation is accordingly complex, a probability of a fault is increased, and a fact that a switch cannot be switched on / off is likely to happen. The switch on-off mechanism comprises a switch, a first trigger element, a second trigger element and a switch trigger mechanism. The first trigger element and the second trigger element control the switch through the switch trigger mechanism. The switch trigger mechanism comprises a linkage element and a trigger rod which is driven by the linkage element. The linkage element is arranged between the first trigger element and the second trigger element and connects the first trigger element and the second trigger element. The linkage element can drive the trigger rod to switch on the switch only when the first trigger element and the second trigger element simultaneously press. The switch on-off mechanism also comprises a reset element which drives the trigger rod to reset when the first trigger element or the second trigger element loosens, so that the switch is switched off. The intermediate link of realizing functions is simplified; and simplification and reliability are achieved.

Description

【Technical field】 [0001] The invention relates to a switch opening and closing mechanism, in particular to an electric tool switch opening and closing mechanism controlled by two buttons. 【Background technique】 [0002] Due to its convenience and labor-saving advantages, electric tools are widely used in occasions such as homes and gardens, which provide convenience for people. However, electric tools themselves are more dangerous than original tools. Operators must be prevented from accidentally touching high-speed Therefore, electric tools must have stable and reliable performance to ensure personal safety. Existing electric tools are mostly controlled by two buttons to improve the safety of operation. [0003] The patent document with the publication number "CN201119317Y" discloses a two-button control mechanism for a mechanical brake pruning machine, which includes a casing, and a motor assembly for driving the blade movement is arranged in the casing, and the switch on ...

AI Technical Summary

Problems solved by technology

Simultaneously press the front button and the rear button to start the machine, but the linkage mechanism in the middle of the starting mechanism is still relatively complicated, the cost is high, and the complicated structure and principle will inevitably lead to complicated installation, the probability of failure increases, and the switch cannot be turned on easily. or cannot be closed

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