CN-121976722-A - Rotary door closer with buffer function and side-hung door and window

CN121976722ACN 121976722 ACN121976722 ACN 121976722ACN-121976722-A

Abstract

The invention relates to the technical field of door and window accessories, in particular to a rotary door closer with a buffering function and a side-hung door and window, wherein the door closer comprises a mounting seat, a swing arm, a rotating shaft, a door closing spring and a buffering wheel, wherein the swing arm is fixedly connected with the rotating shaft in the circumferential direction and hinged to the mounting seat through the rotating shaft, one end of the door closing spring is fixed, the other end of the door closing spring is connected with the rotating shaft and can drive the rotating shaft to drive the swing arm to rotate relative to the mounting seat, a toggle piece is arranged on the rotating shaft, the buffering wheel is hinged to the mounting seat, and the buffering wheel is in damping connection with the mounting seat, the buffer wheel is provided with a first buffer tooth and a second buffer tooth which form a certain included angle around the circumference of the buffer wheel, when the rotating shaft rotates to a first set angle and a second set angle in the forward and reverse directions, the first buffer tooth and the second buffer tooth can be respectively stirred by the stirring piece to drive the buffer wheel to rotate, and the buffer wheel can buffer the damping force applied to the door and window sash when the door and window sash is closed or opened to the set angle, and can not buffer the door and window at other opening angles, so that the door and window can be effectively protected, and the use experience is improved.

Inventors

YANG ZHENGHAO
YANG HUIYUE

Assignees

滦州市捷澳建材有限公司

Dates

Publication Date: 20260505
Application Date: 20260401

Claims (9)

1. The utility model provides a rotation type door closer with buffer function, a serial communication port, including the mount pad, the swing arm, the pivot, close door spring and buffer wheel, the one end of swing arm carries out circumference fixed connection with the pivot and articulates in the mount pad through the pivot, it is fixed to close door spring one end, the pivot is connected to the other end and can drive its relative mount pad of swing arm and rotate in order to provide the door closure power, be equipped with in the pivot and stir the piece, the buffer wheel articulates in the mount pad and buffer wheel is the damping connection with the mount pad for the damping to make buffer wheel rotate for the relative mount pad and have the damping, the buffer wheel is equipped with first buffer tooth and the second buffer tooth that is certain contained angle around its circumference, the pivot is just, can stir first buffer tooth, the second buffer tooth is rotated to the first setting angle respectively through stirring the piece when the second setting angle.
2. The rotary door closer with buffering function according to claim 1, wherein the first buffering teeth and the second buffering teeth are arranged on the buffering wheel in a vertically staggered mode, the stirring piece comprises a stirring wheel and a first stirring tooth and a second stirring tooth which are arranged on the stirring wheel in a vertically staggered mode and form a certain included angle around the circumference of the buffering wheel, the heights of the first stirring tooth and the second stirring tooth correspond to the first buffering teeth and the second buffering teeth respectively, and when the rotating shaft rotates to a first set angle and a second set angle in the forward and reverse directions, the first buffering teeth and the second buffering teeth can be respectively stirred through the first stirring tooth and the second stirring tooth to drive the buffering wheel to rotate, wherein the first set angle corresponds to the angle of the rotating shaft before the door and window fan is closed, and the second set angle corresponds to the angle of the rotating shaft before the door and window fan is opened to the set angle.
3. The rotary door closer with buffering function according to claim 2, wherein the buffering wheel and the first buffering tooth and the second buffering tooth are of an integrated structure, or the buffering wheel is divided into an upper buffering wheel and a lower buffering wheel which are mutually independent and are circumferentially fixed and can not rotate relatively, and the first buffering tooth and the second buffering tooth are respectively fixedly connected with the upper buffering wheel and the lower buffering wheel; the shifting wheel is of an integrated structure with the first shifting teeth and the second shifting teeth, or the shifting wheel is divided into an upper shifting wheel and a lower shifting wheel which are mutually independent and circumferentially fixed and can not rotate relatively, and the first shifting teeth and the second shifting teeth are respectively and fixedly connected with the upper shifting wheel and the lower shifting wheel.
4. The rotary door closer with buffering function according to claim 1, wherein the buffer wheel is connected with the mounting seat in a damping way through a damping mechanism, the damping mechanism comprises an adjusting rod, an adjusting plate and at least one elastic damping piece, the buffer wheel is provided with a circular through hole and hinged with the mounting seat through the adjusting rod, a threaded section is further arranged on the adjusting rod, one of the adjusting plate and the mounting seat is connected with the adjusting rod in a threaded way, the other one of the adjusting plate and the mounting seat is rotatably connected with the adjusting rod in a hanging way, the buffer wheel is located between the mounting seat and the adjusting plate, elastic damping pieces are arranged between the buffer wheel and the mounting seat and/or between the buffer wheel and the adjusting plate, a limiting structure capable of limiting the rotation of the adjusting plate is arranged on the mounting seat, and the adjusting plate can be driven to reciprocate relative to the mounting seat through positive and negative rotation of the adjusting rod, so that the compression degree and the friction damping force of the elastic damping pieces on the buffer wheel can be adjusted.
5. The rotary door closer with buffering function according to claim 4, wherein the mounting base further comprises a supporting portion, the supporting portion is located below the buffering wheel or the elastic damping piece and used for supporting the buffering wheel or the elastic damping piece, a screw hole is formed in the supporting portion, the upper end of the adjusting rod is rotatably connected with the adjusting plate in a hanging mode, and the lower end of the adjusting rod penetrates through the buffering wheel and then is in threaded connection with the screw hole formed in the supporting portion.
6. The rotary door closer with buffering function according to claim 5, wherein the mounting seat is provided with a containing groove, the buffering wheel and the damping mechanism are both located in the containing groove, at least one side edge of the adjusting plate is a straight edge and abuts against the inner side wall of the containing groove so as to limit rotation of the adjusting plate, the elastic damping piece is a belleville spring, and elastic damping pieces are arranged between the upper surface and the lower surface of the buffering wheel and the adjusting plate and between the upper surface and the lower surface of the buffering wheel and the supporting portion.
7. The rotary door closer with buffering function according to claim 1, wherein the door closing spring is a scroll spring, the outer end of the scroll spring is fixed, the inner end of the scroll spring is connected with the rotating shaft, and the outer end of the scroll spring is fixed in a manner that the outer end of the scroll spring is fixedly connected with the mounting seat or is connected with the mounting seat through a force adjusting mechanism capable of adjusting the tightness degree of the scroll spring.
8. The rotary door closer with buffering function according to claim 1, wherein the other end of the swing arm is provided with a sliding block and can be rotatably and slidably connected with a sliding groove on the door and window sash or the door and window frame through the sliding block, and the mounting seat is used for fixedly connecting the door and window sash or the door and window sash.
9. The vertical hinged door and window is characterized by comprising a door and window frame, a door and window sash hinged to the door and window frame, and the rotary door closer with the buffering function according to any one of claims 1-8, wherein the other end of the swing arm is provided with a sliding block and is rotatably and slidably connected with a sliding groove on the door and window sash through the sliding block, the mounting seat is fixedly connected with the door and window frame or the window sash, when the door and window sash rotates to be closed, the rotating shaft is rotated to a first set angle in the forward direction so that the stirring piece stirs the first buffering tooth to drive the buffering wheel to rotate in the forward direction, and when the door and window sash rotates to be opened to the set angle, the rotating shaft is rotated to a second set angle in the reverse direction so that the stirring piece stirs the second buffering tooth to drive the buffering wheel to rotate in the reverse direction.

Description

Rotary door closer with buffer function and side-hung door and window Technical Field The invention relates to the technical field of door and window accessories, in particular to a rotary door closer with a buffering function and a flat-open door and window. Background At present, fireproof doors and windows or some high-end shops and household doors and windows can be provided with door closers to automatically close door leaves or window sashes (hereinafter referred to as door and window sashes). The existing door closer is usually a hydraulic cylinder or an air cylinder driving type door closer, and the door and window wings are driven to be automatically closed by driving a piston rod to act through the hydraulic cylinder or the air cylinder. The door closer has the common problems that 1, the problem of oil leakage or air leakage caused by tight sealing easily occurs, the door closer is invalid, the phenomenon that a door and window can not be closed or opened is caused, a piston rod is easy to bend and fall off when the door and window is opened by a strong force, in addition, the sealing ring which is high in temperature and easy to cause oil or gas when sand is blown or impurities are arranged on the door and window, the damage rate is extremely high, the manufacturing, use and maintenance cost is high, 2, the door closer is easy to be influenced by environmental temperature change, when the temperature environment changes greatly (such as winter and summer), the viscosity and damping force of fluid in the door and window are greatly influenced, the working is unstable, 3, the door and window closing force is generally large, the door and window are difficult to be opened by old and young users, the fixed screws for installing the door and window are easy to fall off, 4, the rotating speed of the door and window can be fast in the process of driving the door and window, the door and window can be impacted on a door and window frame at high rotating speed when the door and window is closed, the door and window is easy to cause the door and window to be damaged easily, the door and window or door window is opened easily, in addition, when a user manually pushes and window is greatly influenced by the environmental temperature change, the viscosity and damping force of fluid in order to cause the door and window is easy to be damaged when door and window door closer to be opened. Disclosure of Invention In order to overcome the defects in the prior art, the invention aims to provide the rotary door closer with the buffering function and the flat-open door and window, the elastic force of the door closing spring is utilized to provide the door closing force, the structure is simple, the work is stable, the door closer is not easily influenced by dust accumulation and environmental temperature change, the manufacturing, using and maintaining costs are low, the door closing force is moderate, the door and window sashes are easy to use, damping can be applied to the door and window sashes for buffering when the door and window sashes are closed or opened to a set angle, damping can not be applied to buffer when other opening angles are used, thus noise generated when the door and window sashes strike the door and window frame or a limiting structure is effectively prevented, the door and window closer are protected, damping can not be applied for buffering when the opening angle does not reach the set angle, the use by the old and the young and the use experience is good. One of the tasks of the invention is realized by the following technical scheme: The utility model provides a rotation type door closer with buffer function, including the mount pad, the swing arm, the pivot, close door spring and buffer wheel, the one end of swing arm carries out circumference fixed connection with the pivot and articulates in the mount pad through the pivot, it is fixed to close door spring one end, the other end is connected the pivot and can drive its relative mount pad of swing arm and rotate in order to provide the power of closing the door, be equipped with in the pivot and stir the piece, the buffer wheel articulates in the mount pad and buffer wheel is the damping connection with the mount pad for the damping, so that the buffer wheel rotates with the mount pad relatively and has the damping, the buffer wheel is equipped with first buffer tooth and the second buffer tooth that is certain contained angle around its circumference, the pivot is positive, reverse rotation can stir first buffer tooth, the second buffer tooth drives the buffer wheel rotation through stirring the piece respectively when setting for first setting for the angle, the second setting for the angle. As the preferable technical scheme, first buffering tooth and second buffering tooth are in the setting of staggering from top to bottom on the buffer wheel, stir the piece and including dialling the wheel and setting up and being the first tooth