Two-stage unlocking mechanism for engine cover

Abstract

The invention discloses a two-stage unlocking mechanism for an engine cover. The two-stage unlocking mechanism for the engine cover comprises an automobile body. The engine cover is arranged on the automobile body. An engine cover two-stage lock is arranged on the inner side of the engine cover. The two-stage unlocking mechanism for the engine cover further comprises a fixed base. The fixed base is connected with a support through a rotary shaft. The support is sequentially provided with a first air cylinder, an unlocking rod and a guide groove. The fixed base and the support are connected through a second air cylinder. The two-stage unlocking mechanism which is simple in structure, reliable in performance and convenient to install and maintain is provided for an opening and closing endurance test conducted on the automotive engine cover.

Description

technical field [0001] The invention relates to a secondary unlocking mechanism for an engine cover, which belongs to the technical field of automobile engine cover structures. Background technique [0002] According to the applicant's understanding, with the improvement of people's requirements for the safety, comfort and reliability of automobiles, improving the quality of their products to meet the increasing needs of users has become the main topic of major automobile manufacturers. Car testing can find some problems in advance before the car products go on the market. As one of the main parts of the car body, the hood of the car has a vital impact on the safety and reliability of the car. [0003] The retrieved inventions are as follows: [0004] 1. The existing invention CN103112501A is a hood opening device, such as Figure 4 Shown in the figure, 1-engine cover; 2-cylinder; 3-open frame; 4-open cylinder; 6-handle. Cylinder 2 stretches out and handle 6 is rotated to...

AI Technical Summary

Problems solved by technology

Therefore, this invention relates to the opening of the engine cover realized by the oil cylinder + lever mechanism, and does not involve the secondary lock and unlock mechanism, which is inconsistent with the technical characteristics described in the present invention.

[0006] 3. Existing invention CN104296987A, car hood lock fatigue test device; CN204188377U car hood lock fatigue test device all described car hood lock fatigue test device, is the engine hood lock parts test, The cylinder is used to directly pull the unlocking mechanism through the steel wire to realize unlocking, which is inconsistent with the characteristics and applicable state described in the present invention

[0008] 5. The existing invention CN203587348U, an automobile hinged hood durability test device is that the actuator opens the secondary lock through the cable to make the hood pop up, which is inconsistent with the technical characteristics described in the present invention

[0009] 6. The existing invention CN204575322U, the car engine cover durability test device describes the opening mechanism of the engine cover, the front end of the driving hook contacts the engine cover, and the driving arm drives the driving hook to open the engine cover, which is inconsistent with the technical characteristics described in the present invention

[0010] 7. The existing invention CN201159689Y, the door durability tester is a door cover opening and closing mechanism controlled by a robot, which does not match the technical features described in the present invention

[0011] 8. The existing invention CN201680977U, the opening and unlocking mechanism of the engine cover of the automobile door cover durability test bench is not included in the right protection item, and the unlocking mechanism described in it is that there is a set of pneumatic devices on the car door to pull the front cover gate, and then another set The pneumatic device unlocks the hook of the front cover... without specifying the structural features of the mechanism, so the invention does not match the technical features described in the present invention

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