Introduction to Hydraulic Door Closer

Modern Hydraulic Door Closer (or door closers for short) began with a patent registered by the Americans in the early twentieth century. They differ from traditional door closers by throttling the fluid in the door closer to achieve a cushioning effect. The core of the Hydraulic Door Closer design concept is to achieve control of the closing process so that the various functional indicators of the closing process can be adjusted according to human needs. So what is the working principle of Hydraulic Door Closer next I'll take a look at it?

This is the list of contents：

• Basic components

• Working principle

• Role

Basic components

The basic components of a Hydraulic Door Closer are the supporting guide, the drive gear, the reset spring, the check valve, the rack and pinion plunger, the throttle spool and the housing, the end cap, and the seal and the connecting rod. The housing and the connecting rod play the role of fixing the door closer and connecting the door and door frame.

Working principle

When the door is opened, the door body drives the connecting rod and makes the transmission gear rotate, driving the rack and pinion plunger to move to the right. In the process of moving the plunger to the right, the spring is compressed and the hydraulic oil in the right cavity is pressurized. The check valve sphere on the left side of the plunger opens under the action of oil pressure, and the hydraulic oil in the right cavity flows to the left cavity through the check valve. When the process of opening the door is completed, as the spring is compressed during the opening process, the accumulated elastic potential energy is released and the plunger is pushed to the left, driving the transmission gear and Hydraulic Door Closer connecting rod rotation so that the door is closed. The throttle valve on the valve body can be adjusted to control a variable closing speed for different stroke sections. Although different manufacturers of Hydraulic Door Closer have structure, and size differences, the principle is the same.

Role

1. The significance of the Hydraulic Door Closer is not only to close the door automatically but also to protect the door frame and door body (smooth closure), more importantly, the door closer has become a modern building intelligent management of a non-negligible part of the implementation.

2. Hydraulic Door Closer are mainly used in commercial and public buildings, but they are also used in homes. They have several uses, the most significant of which is to enable doors to close on their own to limit the spread of fire and ventilation within the building. Especially in large shopping malls or public buildings, in the event of a fire or flood, the door can be closed in the first instance and the spread of fire or water can be stopped, providing protection, so in fact, Hydraulic Door Closer can be used in both public and domestic settings.

The above content is specifically about the working principle of the Hydraulic Door Closer, as well as its specific role is what. Of course, when buying Hydraulic Door Closer must pay attention to the quality, to meet the national quality standards.

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