Search

CN-121976723-A - Door closer convenient to adjust force and vertical hinged door and window

CN121976723ACN 121976723 ACN121976723 ACN 121976723ACN-121976723-A

Abstract

The invention relates to the technical field of door and window accessories, in particular to a door closer convenient for force adjustment and a flat-open door and window, which comprises a mounting seat, a vortex spring, a pull belt, a steering support structure and a force adjustment mechanism, wherein the inner end of a reed of the vortex spring is connected with an output shaft and can apply torsion force for closing a door and window sash to the output shaft, the output shaft is hinged to the mounting seat, the output end of the output shaft is used for connecting a swing arm and transmitting the torsion force, the outer end of the reed of the vortex spring is connected with one end of a pull belt, the other end of the pull belt bypasses the steering support structure and then is connected with the force adjustment mechanism, the bending rigidity of the pull belt is smaller than that of the reed of the vortex spring, the steering support structure is used for converting the extending direction of the pull belt from tangential direction along the vortex spring into direction towards the force adjustment mechanism, and the force adjustment mechanism can drive the pull belt to move so as to adjust the torsion force of the vortex spring. The door closer convenient for adjusting force can realize the adjustment of the door closing force without detaching the swing arm when in use, is convenient to adjust, and can realize the accurate adjustment of the door closing force.

Inventors

  • YANG ZHENGHAO
  • YANG HUIYUE

Assignees

  • 滦州市捷澳建材有限公司

Dates

Publication Date
20260505
Application Date
20260403

Claims (10)

  1. 1. The utility model provides a door closer convenient to transfer power, a serial communication port, including the mount pad, the vortex spring, the stretching strap, turn to bearing structure and transfer power mechanism, the reed inner of vortex spring is connected the output shaft and can apply the torsion that is used for closing the door and window fan to the output shaft, the output shaft articulates in the mount pad, the output of output shaft is used for connecting the swing arm and transmitting torsion, the one end of stretching strap is connected to the reed outer end of vortex spring, the other end of stretching strap is connected the transfer power mechanism after bypassing the bearing structure that turns to, the bending rigidity of stretching strap is less than the bending rigidity of the reed of vortex spring, turn to bearing structure and be used for turning into towards the transfer power mechanism with the extending direction of stretching strap by following the tangential direction of vortex spring, thereby transfer power mechanism can drive the stretching strap motion and adjust the torsion of vortex spring.
  2. 2. The door closer convenient to adjust force according to claim 1, wherein the force adjusting mechanism comprises a fixed block fixedly connected with the mounting frame, a movable block arranged between the fixed block and the steering supporting structure, and an adjusting screw rod connecting the fixed block and the movable block, the other end of the pull belt is connected with the movable block, one of the movable block and the fixed block is in threaded connection with the adjusting screw rod, the other one of the movable block and the fixed block is rotatably connected with the adjusting screw rod in a hanging manner, and the sliding block can be driven to reciprocate relative to the scroll spring through rotating the adjusting screw rod, so that torsion force of the scroll spring can be adjusted through the pull belt.
  3. 3. The door closer convenient for force adjustment according to claim 2, wherein the fixed block is further fixedly provided with at least one guide rod parallel to the adjusting screw rod, and the guide rod penetrates through the movable block and is in sliding connection with the movable block so as to limit and guide the guide rod.
  4. 4. The door closer convenient to adjust force according to claim 1, wherein the force adjusting mechanism comprises a winding wheel rotatably connected with the mounting seat and used for winding the other end of the pull belt, a first bevel gear coaxially and fixedly connected with the winding wheel, a second bevel gear meshed with the first bevel gear, a sleeve fixedly connected with the mounting seat, a fixed first fluted disc and a movable second fluted disc are arranged in the sleeve, the first fluted disc and the second fluted disc are coaxially and oppositely arranged, opposite surfaces of the first fluted disc and the second fluted disc are respectively provided with ratchets capable of being meshed, the back surface of the second fluted disc and the back surface of the second bevel gear are respectively and coaxially fixedly provided with a plug shaft and a shaft sleeve capable of being mutually plugged and relatively axially moving, a pressure spring is further arranged in the shaft sleeve and elastically propped against the plug shaft and can enable the second fluted disc to be meshed with the first fluted disc under a natural state so as to prevent the second fluted disc from reversely rotating, the axle center of the second fluted disc is provided with a driving groove type used for matching a screwdriver, and through holes leading to the driving groove type are formed in the axle center and the sleeve.
  5. 5. The door closer convenient to adjust force according to claim 4, wherein the side wall of the sleeve is provided with a positioning hole, the side wall of the first fluted disc is correspondingly provided with a positioning groove, the locking screw penetrates through the side wall of the sleeve and is inserted into the positioning groove to realize the fixed connection of the first fluted disc and the sleeve, and the locking screw is screwed to realize the fixed connection of the first fluted disc and the sleeve.
  6. 6. The door closer facilitating force adjustment according to claim 1, wherein the steering support structure comprises at least one guide post or guide roller.
  7. 7. The door closer for facilitating force adjustment according to claim 6, wherein the steering support structure comprises at least two guide posts fixedly connected to the mounting base, each guide post being arranged diagonally between the wrap spring and the force adjustment mechanism such that a turning angle of the pull strap passing each guide post is obtuse.
  8. 8. The door closer capable of facilitating force adjustment according to claim 1, wherein the pull belt is a metal sheet, the thickness of the pull belt is smaller than that of the reed of the vortex spring, one end of the pull belt is connected with the outer end of the reed of the vortex spring and then is wound on the periphery of the vortex spring along the direction of the reed, and the circumferential angle of winding is larger than 180 degrees.
  9. 9. The door closer convenient for force adjustment 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 frame or the door and window sash.
  10. 10. The side-hung 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 door closer convenient to adjust force according to any one of claims 1-9, 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, and the mounting seat is fixedly connected with the door and window frame or the door and window sash.

Description

Door closer convenient to adjust force and vertical hinged door and window Technical Field The invention relates to the technical field of door and window accessories, in particular to a door closer convenient for adjusting force 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 door closer is easy to leak oil or air without tight sealing, so that the door closer fails, door and window sashes cannot be closed or opened, a piston rod is easy to bend and fall off when being subjected to strong opening and closing of the window, in addition, the sealing ring which is easy to damage oil or gas when sand is blown or impurities exist at high temperature, the vulnerability rate is extremely high, the manufacturing, using and maintaining costs are high, 2, the door closer is easy to be influenced by environmental temperature change, when the temperature environment change is large (such as winter and summer), the influence on the viscosity and damping force of fluid in the door closer is large, so that the door closer is unstable, 3, the door closing force is generally large, the door and window opening of old and young users is difficult, the fixed screw for installing the door closer is easy to fall off, and the door closing force of the user is difficult to adjust by oneself. Disclosure of Invention In order to overcome the defects in the prior art, the invention aims to provide the door closer and the flat-open door and window which are convenient for adjusting force, the torsion of the vortex coil spring is utilized to provide the door closing force, the structure is simple, the work is stable, the influence of dust accumulation and environmental temperature change is not easy to occur, the manufacturing, using and maintaining costs are low, the door closing force is moderate, the use is easy for old and young users, the door closing force can be easily and conveniently adjusted according to the self requirement, and the accurate adjustment of the door closing force can be realized. One of the tasks of the invention is realized by the following technical scheme: The utility model provides a door closer convenient to transfer power, including the mount pad, the vortex spring, the stretching strap, turn to bearing structure and transfer power mechanism, the reed inner connection output shaft of vortex spring can apply the torsion that is used for closing the door and window fan to the output shaft, the output shaft articulates in the mount pad, the output of output shaft is used for connecting the swing arm and transmitting torsion, the one end of stretching strap is connected to the reed outer end of vortex spring, the other end of stretching strap is walked around and is connected the transfer power mechanism behind the bearing structure, the bending rigidity of stretching strap is less than the bending rigidity of the reed of vortex spring, turn to bearing structure and be used for turning into towards the transfer power mechanism with the extending direction of stretching strap by following the tangential direction of vortex spring, thereby transfer power mechanism can drive the stretching strap motion and adjust the torsion of vortex spring. As the preferable technical scheme, the force adjusting mechanism comprises a fixed block fixedly connected with the mounting frame, a movable block arranged between the fixed block and the steering supporting structure, and an adjusting screw rod connected with the fixed block and the movable block, wherein the other end of the drawstring is connected with the movable block, one of the movable block and the fixed block is in threaded connection with the adjusting screw rod, the other one of the movable block and the fixed block is in rotatable connection with the adjusting screw rod, and the sliding block can be driven to reciprocate relative to the scroll spring through rotating the adjusting screw rod, so that the torsion of the scroll spring can be adjusted through the drawstring. As an optimal technical scheme, at least one guide rod parallel to the adjusting screw rod is further fixedly arranged on the fixed block, and the guide rod penetrates through the movable block and is in sliding connection with the movable block so as to limit and guide the guide rod. As the preferable technical scheme, the force adjusting mechanism comprises a winding wheel, a first bevel gear, a second bevel gear and a sleeve, wherein the winding wheel is rotatably