A kind of main lock of car engine cover with external lifting spring

Abstract

The invention discloses an external lifting spring type automobile engine hood master lock. The main lock comprises a master lock base, a master lock front frame, a clamping plate assembly, a clamping jaw, a clamping plate spring, a clamping jaw spring, a clamping plate hinge pin and a clamping plate hinge pin; the master lock base and the master lock front frame are each provided with a notch containing an engine hood lock catch, the clamping plate assembly is provided with an opening lock tongue contour which is used for cooperating with the notch to lock the engine hood lock catch when the clamping plate assembly is located at the locking position, and the clamping jaw can lock the clamping plate assembly to the locking position. Accordingly, a lifting spring, the clamping plate spring and the clamping jaw spring are three independent spiral springs. The clamping plate spring and the clamping jaw spring are used for providing driving force for reset of the clamping plate and the clamping jaw, the lifting spring is only used for providing support for lifting of an engine hood. The clamping jaw spring is clamped in a cavity formed by the master lock base and the master lock front frame, assembling is stable, the clamping jaw spring and the clamping plate are nearly invisible in the master lock fore sight direction, and the risk of theft of an engine compartment is reduced.

Description

technical field [0001] The invention relates to the technical field of auto parts, in particular to a main lock structure of an engine cover. Background technique [0002] According to the national mandatory standard "GB 115689 Automobile Cover (Cover) Lock System", if the front open cover partially or completely hinders the driver's vision through the windshield in any open position, then the The cover lock system shall have a second locked position, or a second cover lock system shall be installed on the cover. In order to maximize the safety factor of these two locking positions, a variety of split hood lock structures have appeared on the market. The first locking position (main lock) and the second locking position (safety lock) of the hood lock As two independent parts, this structure requires two hood locks on the engine cover assembly, the first lock and the second lock are independent parts. The first lock position (main lock) of the hood lock cooperates with the ...

AI Technical Summary

Problems solved by technology

However, if the engine cover used in the lock is heavy, in order to achieve the lifting effect, it is necessary to increase the elasticity of the extension spring of the rotary tongue. The impact with the lock body makes the noise louder. At the same time, the excessively large turn piece tongue tension spring will also increase the sensitivity of the locking system. A slight touch of the inner opening handle may cause the unlocking of the main lock.

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