Hinge

Abstract

The invention discloses a hinge with high accuracy, lower noise, easy oiling and flexible operation. The invention comprises a hinge shaft core (1), a fixed blade (2), a movable blade (3), and a screw block (6). Wherein, said fixed blade (2) has a fixed sheath (4); said movable blade (3) has a movable sheath (5); the lower part of hinge shaft core (1) is through the fixed sheath (4) and movable sheath (5), while its two ends is blocked by said screw block (6); the outer circumference of said hinge shaft core (1) has lubricate oil grooves which are the screw grooves around the hinge shaft core (1) or the annular grooves (8) vertical to said central shaft of hinge shaft core (1); and said annular grooves are arranged on the outer circumference of said hinge shaft core (1) matching the movable sheath (5). The invention can apply the switch of door and window.

Description

technical field [0001] The present invention relates to a hinge. Background technique [0002] A hinge (commonly known as a hinge) is mainly composed of a fixed leaf, a moving leaf and a hinge shaft core. Most hinges are installed on the fixed leaf on the door frame with a fixed shaft sleeve, while the movable leaf installed on the door is provided with a movable shaft sleeve, the hinge shaft core passes through the fixed shaft sleeve and the movable shaft sleeve, and the hinge shaft core and the fixed shaft The shaft sleeve is fixedly matched with the moving shaft sleeve, and the moving leaf can rotate around the hinge axis to open and close the door. In order to make the hinge operate flexibly, lubricating oil is generally required; on the other hand, the size of the gap between the hinge shaft core and the inner hole of the moving sleeve determines the manufacturing accuracy of the hinge. In this way, there are the following contradictions: the g...

AI Technical Summary

Problems solved by technology

In this way, there are the following contradictions: the gap is large, and it is easy to refuel. For example, in order to ensure a thick lubricating oil layer between the bushing and the shaft core in a traditional hinge, the gap is relatively large. , the lubricating oil will leak along the gap. Such a hinge not only has low precision, the oil overflowing the hinge gap also causes appearance pollution, and when the lubricating oil overflows, there is a large gap between the shaft core and the shaft sleeve. Movement, it is easy to generate noise, and at the same time, due to uneven force, it will also accelerate the wear of the hinge, thereby reducing the life of the hinge; the gap is small, the precision is high, and the noise is small, but it is not easy to refuel, resulting in inflexible operation

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