Multipurpose hinge apparatus having automatic return function

Abstract

A multipurpose hinge apparatus having an automatic return function is provided in which the apparatus is installed between the door and a main body. The apparatus includes a driving mechanism for ascending and descending a piston rod according to opening and closing of the door which is installed in the upper portion of a cylindrical housing. A piston is connected with the piston rod, in which a one-direction check valve is installed in the piston. The piston partitions an upper chamber and a lower chamber and ascends and descends in association with the piston rod. A first oil path communicates with the upper and lower chambers via the lower portion of the piston rod in the central portion of the piston. A compression spring which makes the piston ascend is inserted into the lower chamber. Oil is filled in the chamber. Thus, the hinge apparatus is automatically returned to the initial position with return speed in multiple steps by controlling an amount of oil flowing from upper chamber to lower chamber in multiple steps when a door is closed.

Description

technical field [0001] The present invention relates to a multipurpose hinge device with an automatic reset function, and in particular to such a multipurpose hinge device which can be used to rotate a shaft in a hinge device of a left-right rotation type door or a hinge device of a vertical rotation type door. Any hinge device that is consistent with or different from the door rotation axis, and its multi-level automatic reset speed setting structure is stable and reliable. Background technique [0002] The hinge device can connect the two parts in a way that the two parts are opened or folded around an axis as required. A typical example is a hinge type hinge device (including a horizontal movable part) used between the door and the door frame and suitable for For refrigerators, mobile phones, notebooks, etc., the upper and lower opening and closing hinge devices (including vertical movable parts). [0003] In the prior art, for a hinge-type hinge device with an automatic...

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Problems solved by technology

[0016] However, the shape and structure of the above-mentioned hinged oil passage are very complicated, and the workability is very poor. When the door is opened, it cannot be temporarily stopped, and the door cannot be prevented from rotating at an excessive speed under external forces such as strong wind.

In addition, since the oil storage space is insufficient as a whole, an excessive load is imposed on each component when opening and closing a large door, and the user has to apply a relatively large force.

[0017] On the other hand, the prior art does not propose the most suitable structure for hinge devices with vertically rotating doors such as kimchi refrigerators.

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