Automatic door latch device

Abstract

The automatic door stopping device includes a door body unit, a pivot unit, and driving unit a transmission unit, lifting unit and a stopping unit. It is characterized by that it utilizes the pivoting motion produced when the door body is opened as source of driving force, and utilizes the transmission of the pivot unit, driving unit and transmission unit to make the lifting unit produce a downward linear motion to make stopping block of stopping unit progressively downward move until the stopping block is contacted with floor to form a pressure so as to produce a stopping action, so that thedoor body unit can be positioned at a predefined position. When the door body unit is operated oppositely, the stopping action of the stopping block can be automatically eliminated.

Description

Technical field: [0001] The invention relates to an automatic door stopper, especially a door stopper suitable for a door body, and has the function of fixed-point positioning, so that the door body can be automatically opened at the set fixed-point position with the action of opening. A stop effect is generated to locate at the set opening angle. Background technique: [0002] The purpose, composition, technical means and functions of commonly used door files are listed below. Please refer to: [0003] Press, the general traditional door body is not provided with a doorstop, when opening, people often use a weight or a conical block as a stopper, to prevent being closed suddenly by the effect of wind force, or hitting its side wall suddenly; , in use, every time you want to close the door, you need to remove the heavy object or the tapered block, and then the door can be reset and closed; moreover, the storage of the heavy object or the tapered block is not easy, easy to l...

AI Technical Summary

Problems solved by technology

[0003] Press, the general traditional door body is not provided with a doorstop, when opening, people often use a weight or a conical block as a stopper, to prevent being closed suddenly by the effect of wind force, or hitting its side wall suddenly; , in use, every time you want to close the door, you need to remove the heavy object or the tapered block, and then the door can be reset and closed; moreover, the storage of the heavy object or the tapered block is not easy, easy to lose, and It is also easy to scratch the surface of the door body, so it needs to be improved

[0004] Furthermore, there is another conventional doorstop that uses a positioning rod as a stopper. It is provided with a positioning rod close to the ground on the door body, and a corresponding positioning hole must be provided on the ground or the floor. When the door body When it is opened to the position to be positioned, it is necessary to extend the positioning rod downwards with the hand, so that the function rod of the positioning rod can extend into the positioning hole to achieve the purpose of positioning; however, the setting height of the positioning rod must be very high. It is close to the ground, so in operation, people have to bend down to operate, so there is inconvenience in operation; in addition, this is commonly used, and positioning holes need to be provided on the ground or the floor, and the ground or the floor will be damaged, so there is nothing to do. Ideal

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