Liftable cover

Abstract

A structure of a liftable cover includes a cover having a pivoting end and a covering seat that allows the cover to be disposed thereon. The covering seat is formed thereon with a notch. Both sides of the notch are formed with a sidewall for the covering seat respectively. The notch is hollowed in the vertical direction. Both ends of the pivoting end of the cover are pivotally provided with a pivotal sliding block. The sidewalls on both sides of the covering seat are provided with a sliding trough to correspond to the pivotal sliding block respectively. The two pivotal sliding blocks slide into the two sliding troughs and are connected thereto respectively. Via the indirect pivotal connection of the two pivotal sliding blocks, components can be replaced and assembled in a rapid and convenient manner.

Description

BACKGROUND OF THE INVENTION[0001]1. Field of the Invention[0002]The present invention relates to a cover, and in particular to a liftable cover that can be lifted upwardly and cover downwardly, and the structure of a pivotally connecting portion thereof is improved.[0003]2. Description of Prior Art[0004]As shown in FIG. 1, a common cover 1a that can be lifted is formed by means of directly pivoting a pivotal means such as a pivotal shaft 10a to a connecting portion 2a. For example, both sides of one end of the cover 1a are provided with the pivotal shaft 10a, and the connecting portion 2a is provided with pivotal holes 20a that allow the pivotal shaft to be pivoted thereto. When the pivotal shaft 10a penetrates into the pivotal holes 20a, the cover 1a can be lifted upwardly or cover downwardly at the connecting portion 1a. [0005]However, with regard to the assembly process or the capability of attaching functional elements, the above-mentioned structure in which the cover is directl...

AI Technical Summary

Benefits of technology

[0010]The present invention is to provide a structure of a liftable cover, in which a covering seat is provided to allow a cover to be pivoted thereon. The pivotally connecting positions between the cover and the covering seat are provided with a pivotal sliding block respectively. Via the pivotal sliding blocks, the cover and the covering seat are pivotally connected with each other in an indirect manner. As a result, when the pivotal holes on the pivotal sliding blocks are enlarged due to the wear and the pivotally connecting function is lost, new pivotal sliding blocks can be replaced easily, thereby maintaining the lifting and covering functions of the liftable cover in a low-cost manner.

[0011]The present invention is to provide a structure of a liftable cover. Via the above pivotal sliding blocks, elements such as torsion springs can be attached thereon easily. Further, since the pivotal sliding blocks can be replaced, the problem of the damage of resilient elements caused by the accumulated force can be also solved.

[0012]The present invention is to provide a structure of a liftable cover. After the pivotal sliding blocks are pivoted to pivotally connecting positions of the cover, they slide on the covering seat. Via such a two-stage assembly, a fast and convenient way of pivotally connecting can be achieved.

Problems solved by technology

Therefore, the pivotal shaft cannot always penetrate into the pivotal holes very smoothly, and thus it is necessary to incline the pivotal shaft to facilitate the penetrating action.

Especially, since the springs are generally made of metallic materials while the surrounding members are made of plastics, the plastic members will be damaged by the metallic springs.

3. Since the pivotal shaft is pivoted into the pivotal holes directly and the pivotal holes are provided on the connecting portion, after a long-term use, the pivotal shaft and the pivotal holes will be worn, so that the clearance between the pivotal shaft and the pivotal holes may become larger and thus the pivotal connection may get loose.

To a serious extent, the pivotal connection may break down.

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