360-degree rotatable oil pressure door closer

Abstract

The 360-degree rotatable oil pressure door closer comprises a shell, a transmission shaft, a piston, an idler wheel assembly and a valve assembly, a cam part is arranged on the transmission shaft, the idler wheel assembly abuts against the cam part, the idler wheel assembly is rotatably installed on the piston, the piston is installed in the shell, a first oil channel and a second oil channel are separated in the shell, and the first oil channel and the second oil channel are communicated with each other. A third oil duct communicated with the second oil duct is arranged in the piston, and the valve assembly is used for controlling the communication condition of the first oil duct and the third oil duct. The door can be applied to a door, the door body of the door can be installed on the shell, hydraulic oil can be contained in the first oil channel and the second oil channel, the shell can rotate along with rotation of the door body, and flowing of the hydraulic oil in the first oil channel and the second oil channel can be matched with action of the door body so as to ensure that the door body can continuously rotate, and 360-degree rotation of the door body can be achieved; and the application range of the method is widened.

Description

technical field [0001] The invention relates to the field of door closer design, in particular to a 360-degree rotatable hydraulic door closer. Background technique [0002] After the common doors in the past are opened, they often need to be closed manually again, and the doors are also easily affected by external forces such as wind when they are in use, so they cannot maintain their open or closed states. In order to solve the above-mentioned problems, many doors are now equipped with door closers, which have the function of resetting the door, making the door return to its closed state after opening, and also have the function of maintaining the position of the door, so that the door can be maintained at a certain position. A specific opening position reduces the impact of wind and other external forces on the door. On the other hand, the door closer can also provide a certain amount of damping during the opening or closing of the door, so as to avoid collisions with pe...

AI Technical Summary

Problems solved by technology

[0003] However, most of the common door closers can only allow the door to be opened to 90°, and a few can allow the door to be opened to 180°. Therefore, in some occasions where the door needs to be opened and closed beyond 180°, the above-mentioned door closers cannot be used. The scope is narrow, it is difficult to meet people's needs

Images