A hydraulic buffer hinge

Abstract

The invention relates to a hydraulic buffering hinge, comprising a double-earing plate (1) and a single-earing plate (9). The common connecting shaft of the double-earing plate (1) and the single-earing plate (9) is internally sequentially provided with a plug (10), a hydraulic buffer (6), a compression cam (4), a rotation cam (3) and a transmission shaft (2); the boss of the transmission shaft (2) is inserted into the groove in the bottom of the rotation cam (3); a micro plane thrust ball bearing (8) is arranged on the periphery of the boss of the transmission shaft (2); a miniature flanged bearing (7) is arranged on the periphery of the bottom of the rotation cam (3); the micro plane thrust ball bearing (8) and the miniature flanged bearing (7) are arranged on the periphery of the boss of the plug (10) sequentially from top to bottom; the connecting shaft of the single-earing plate (9) is clamped between the two micro plane thrust ball bearings (8) up and down; the connection ends of the compression cam (4) and the hydraulic buffer (6) are reset by a reset spring (5).

Description

technical field [0001] The invention relates to a door hinge in the hardware industry, in particular to a hydraulic buffer hinge which specifically controls the closing speed of the door when the door is closed due to external force. Background technique [0002] At present, in the construction hardware industry at home and abroad, there are mainly two ways to realize the automatic door closing and door stop functions: [0003] The first is the combination of ordinary door hinges, door stoppers and door closers. This method currently occupies a considerable proportion in the construction hardware industry. Position, install a door catch, when the door is opened to this angle (generally 90°), the door will stop. (2) Install a door closer on the upper end of the door frame so that the door can be automatically closed within the specified angle range. [0004] The disadvantages of this structure are: (1) The structure is complicated, the installation is complicated, it takes ...

AI Technical Summary

Problems solved by technology

[0006] The invention designs a hydraulic buffer hinge, which solves the technical problems that the existing hinge has complex structure, complex installation, large space occupation, and many materials; the door stop angle is only a specific angle, which brings inconvenience to people's use ;The life of the door closer is short, the force required to open the door is relatively large, there are also problems such as oil leakage, and it does not conform to the humanized design, etc.

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