Locatable door closer with improved structure

Abstract

The invention discloses a locatable door closer with improved structure. The door closer comprises an elastic mechanism and a locating mechanism, wherein the elastic mechanism comprises a barrel-shaped shell, a piston assembly, a long spring and a pull rod; the piston assembly is arranged in the barrel-shaped shell and is tightly connected with one end of the pull rod; the long spring is arranged in the barrel-shaped shell, is penetrated through by the pull rod and sleeves the pull rod; the other end of the pull rod penetrates out of the barrel-shaped shell; the locating mechanism is arranged at the end of the barrel-shaped shell and is matched with the pull rod in an acting manner; the locating mechanism comprises a control part and a locking and clamping part; the control part and the locking and clamping part are matched in an off linkage manner; and the locking and clamping part and the pull rod are matched in an off locking and clamping manner. Compared with the prior art, the door closer has the following beneficial effects: 1. the pull rod can be limited and located at any angle by the locating mechanism, thus ensuring the door leaf to be randomly located and providing convenience for turnover or freightage; and 2. the door closer has simple and compact integral structure, is convenient and easy to operate, is safe, practical and reliable and is suitable for popularization and use in different occasions.

Description

technical field [0001] The invention relates to a door closer, which belongs to the technical field of door closers, in particular to a positionable door closer with an improved structure. Background technique [0002] At present, such as safety doors, security doors, room doors, bathroom doors, kitchen doors, screen doors, cabinet doors or windows, etc., door closers are generally used to realize automatic closing functions, thereby achieving effective fire prevention and anti-theft effects. In the prior art, the types of door closers can generally be divided into mechanical, pneumatic and hydraulic types. Among them, mechanical door closers generally use springs to form elastic components. When the operator pushes the door leaf, the driving spring is stretched , compression or torsion and other deformations to store energy, when the operator leaves the door leaf, the spring changes from stored energy to released energy, and the pull rod closes the door under the drive of t...

AI Technical Summary

Problems solved by technology

However, there is a problem in the use of this type of mechanical door closer in the prior art, that is, the door closer can only position the door leaf when the door leaf opening angle exceeds 90 degrees, otherwise the door closer will automatically drive the door leaf to close. resulting in inconvenient use at times

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