Spring type automatic closing door

Abstract

The invention discloses a spring type automatic closing door, and relates to the technical field of doors. The spring type automatic closing door comprises a first supporting column; a base is fixedly arranged at the bottom of the first supporting column; a threaded hole is formed in the top of the base; an expansion bolt is movably arranged on the inner wall of the threaded hole; a fixing ring is fixedly arranged on the outer wall of the first supporting column; a frame body is fixedly arranged on the inner wall of the fixing ring; a supporting rod is fixedly arranged on the inner wall of the frame body; and a first hook is fixedly arranged on the outer wall of the supporting rod. By arranging a groove and a rubber sleeve, palms of people can be protected when the door is automatically closed through a switch at the groove, opening and closing actions of people can be simplified through the semicircular groove, daily work of people is facilitated, strong noise and friction damage are avoided when one side of the frame body touches a second supporting column through a sponge layer, the protective noise reducing capacity is strong, potential safety hazards of the automatic closing door can be reduced through the arrangement of the frame body and a spring, and the popularization effect is achieved.

Description

technical field [0001] The invention relates to the technical field of doors, in particular to a spring-type automatic closing door. Background technique [0002] The spring door is a kind of door classified according to the opening method of the door in the door classification. The door equipped with a spring hinge will automatically close after opening. The most common type of spring door is the spring door, which is mostly used for passages in public places and emergency exit passages. [0003] FCB welding and FCB repair in the flat work area are very important stations for the straight water line, and only professional welding and repair personnel can enter; this station is mainly composed of a sunken pit, and the entrance and exit of the pit are served by a hanging chain as a warning , to inform irrelevant personnel to prohibit entry; but sometimes the operator forgets to re-suspend the chain after entering, so there is a safety hazard. The spring-type automatic closin...

AI Technical Summary

Problems solved by technology

[0004] The present invention provides a spring-type automatic closing door, which has the advantages of good protection and noise reduction ability, strong warning function, adjustable, low safety hazard and easy to use. In order to solve the problems of poor noise reduction ability of general structure protection, weak warning effect, fixed structure, high safety hazard and troublesome use

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