A two-way opening and closing hydraulic buffer hinge

Abstract

A bidirectional opening and closing hydraulic buffer hinge, comprising a first hinge body (1), a second hinge body (2) and a core shaft apparatus (3), two ends of the core shaft apparatus (3) being respectively connected to the first hinge body (1) and the second hinge body (2), the core shaft apparatus (3) comprising a core shaft tube body (31), a first sealing connector (32), a second sealing connector (33), a movable piston cam (34), a limiting cylinder sleeve (35), a rotary connection shaft (36), a spring (37) and a limiting pin (38), the spring (37) being sleeved on the rotary connection shaft (36), the movable piston cam (34) being movably connected to the rotary connection shaft (36), the limiting cylinder sleeve (35) being sleeved on the first sealing connector (32), the movable piston cam (34) being movably embedded in the limiting cylinder sleeve (35), the limiting pin (38) respectively penetrating into the movable piston cam (34) and the limiting cylinder sleeve (35), the core shaft tube body (31) being sleeved on an end portion of an inner end of the first sealing connector (32), the second sealing connector (33) being connected to the core shaft tube body (31) in a sealed manner, an inner hole of the core shaft tube body (31) forming a sealed oil cavity (311).

Description

technical field [0001] The invention relates to the field of door and window accessories, in particular to a two-way opening and closing hydraulic buffer hinge. Background technique [0002] At present, many hinges have a buffer function. Among them, most of the existing buffers are composed of a first hinge body, a second hinge body, a connecting shaft, a movable block, a spring, a positioning sleeve, an outer sleeve, and a limit pin. Functional limit guide hole. During assembly, the spring is set on the connecting shaft, the movable block is movably connected to the end of the connecting shaft, and the two ends of the spring act elastically on the connecting shaft and the movable block respectively, and then the movable block is extended into the positioning sleeve, and Put the limit pin on the limit guide hole and the movable block at the same time, then put the outer sleeve on the connecting shaft, the movable block, the spring, and the positioning sleeve, and then put...

AI Technical Summary

Problems solved by technology

In this type of buffer hinge, the door is automatically closed only by the elastic force of the spring. However, under long-term use, the elastic force of the spring is prone to failure, which will reduce the service life of the hinge.

Moreover, during the rotation of such activities, relatively large noises are likely to occur, which greatly affects people's lives.

Although there are hinges with hydraulic oil at present, due to the defects of the existing hinge structure design, the hydraulic oil is prone to turbulent flow and disturbance during the process, which greatly affects the stability of the hinge's buffering effect , which cannot meet the normal use of people

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