Self-protection floor spring

Abstract

The invention relates to the field of floor springs, in particular to a self-protection floor spring which comprises a shell, a rotating shaft extending in the vertical direction is arranged on the inner side of the shell, the lower end of the rotating shaft is in rotating fit with the bottom face of the inner side of the shell, and the upper end of the rotating shaft extends out of the shell and is provided with a connecting part. The outer surface of the rotating shaft is slidably sleeved with a first stopping disc and a second stopping disc in the vertical direction, the outer surfaces of the first stopping disc and the second stopping disc are provided with halfpace grooves of different numbers, a connecting block is arranged on the inner side, close to one side of the second stopping disc, of the shell, one end of the connecting block is movably clamped into the inner side of each halfpace groove, and the other end of the connecting block is movably clamped into the halfpace groove. The structure of a worm gear in a traditional floor spring is changed, rotation of the floor spring is smoother, the friction effect is reduced, damage is not likely to happen, the service life is prolonged, after the floor spring is matched with a door to be installed, the rotation angle of the door each time can be adjusted, the damping feeling during door pushing can be changed, and the using effect is more comprehensive.

Description

technical field [0001] The invention relates to the field of floor springs, in particular to a self-protection type floor spring. Background technique [0002] The floor spring is a kind of door closer, and the compression spring device of the floor spring in the prior art is a worm gear instead of a gear and a rack. Because the worm gear can rotate in forward and reverse directions, the floor spring can be used for doors that open in both directions, while the door closer can only be used for doors that open in one direction. There are limitations in use, and the door can only be fully opened and fully closed. It is not flexible enough to use, and the door cannot be opened to the specified opening degree and then positioned. Secondly, the stability of the door cannot be adjusted flexibly after the door is opened. In addition, due to the setting of the worm gear and other mechanisms, the friction degree of the structural parts is large. In addition, the friction part is mos...

AI Technical Summary

Problems solved by technology

Because the worm gear can rotate forward and reverse, the floor spring can be used for two-way open doors, while the door closer can only be used for one-way open doors. There are limitations in use, and the door body can only be fully opened and fully closed. The state is not flexible enough to use, and the door cannot be positioned after opening to the specified opening degree. Secondly, the stability of the door cannot be adjusted flexibly after the door is opened. In addition, due to the setting of the worm gear and other mechanisms, the friction degree of the structural parts is large. Moreover, most of the friction parts are teeth, which are prone to breakage and damage, which brings inconvenience

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