Door hinge

A door hinge and piston technology, which is applied in the field of door hinges, can solve the problems of fast lubricating oil volatilization, low service life of door hinges, abnormal noise of door hinge rotation and friction, etc., so as to avoid volatilization and prolong service life.

Active Publication Date: 2017-09-15
孙月娇
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, during the use of the door hinge, the internal structure of the fixed seat, the internal structure of the rotating seat, and the power-assisted elastic parts are all exposed to the outside. After a long period of use, the lubricating oil evaporates quickly, resulting in abnormal noise caused by the friction of the door hinge, and making the The door hinge is severely damaged by friction, resulting in a low service life of the door hinge

Method used

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Embodiment Construction

[0055] The core of the present invention is to provide a door hinge with an extended service life.

[0056] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0057] Please refer to Figure 1 to Figure 23 , in a specific embodiment, the door hinge provided by the specific embodiment of the present invention includes a piston 4, a power-assisted elastic member 5, a fixed seat 6, a rotating seat 2, and is used to move the rotating seat 2 and the fixed seat 6 along the movement direction of the piston 4. The limited rotation limiting device, specifically, the rotation limiting device can be a buckle that clamps the end of the fixed base 6 and the end of the rotating base 2 .

[0058] The booster elastic member 5 is used to apply force to the movement of the piston 4. In order to prolong th...

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Abstract

The invention discloses a door hinge. The door hinge comprises a piston, a power-assisted elastic piece, a fixing seat, a rotating seat and a rotating limiting device for limiting the rotating seat and the fixing seat in the moving direction of the piston. The piston comprises a piston body, and the piston body is provided with a first spiral arc-shaped face in the moving direction of the piston; a first containing cavity is formed in the fixing seat, and the power-assisted elastic piece and the first end of the piston are both located in the first containing cavity; one end of the power-assisted elastic piece is connected with the first end of the fixing seat, and the other end of the power-assisted elastic piece is connected with the first end of the piston; and a second containing cavity for containing the second end of the piston is formed in the rotating seat, and the side face of the second containing cavity is provided with a second spiral arc-shaped face attached to the first spiral arc-shaped face. The first containing cavity is formed in the fixing seat, and the second containing cavity is formed in the rotating seat, so that the power-assisted elastic piece and the piston are prevented from being exposed to the external environment, the situation that lubricating oil in the door hinge quickly volatilizes is prevented, and the service life of the door hinge is effectively prolonged.

Description

technical field [0001] The invention relates to the technical field of door body rotation connection, in particular to a door hinge. Background technique [0002] The door hinge is a device installed on the door body to realize the opening and closing of the door body. For example, the door hinge installed in the freezer, the door hinge includes a fixed seat connected to the fixed end of the outside world, a rotating seat connected to the door body, and a power-assisted elastic member that provides power to the rotating seat. The outer frames of the fixed seat and the rotating seat are mainly made of The steel plates are relatively arranged to form a bracket, and one end of the power-assisted elastic member is connected to the fixed seat, and the other end is connected to the rotating seat. [0003] When used on the freezer, when the user closes the door of the refrigerator, the swivel seat of the refrigerator rotates around the hinge shaft in the opposite direction. At th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E05D3/02E05D11/02E05D11/00
CPCE05D3/02E05D11/00E05D11/02
Inventor 孙月娇王章坤
Owner 孙月娇
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