Analysis of the reasons for the inflexibility of door and window switches

If there is a block phenomenon when opening and closing the door and window, the switch needs a lot of strength, the width of the frame fan is small, and the unevenness of the surrounding gap is generally caused by the following factors:

1. The door and window frame or fan is deformed, and the sealing strip is loose.

2. Hardware accessories are damaged.

3. The installation quality is poor, and the allowable deviation is too much, and it has not been adjusted in time.

Prevention:

1. Door and window installation should comply with the installation process, and check and adjust the installation quality of each process at any time.

2. The window frame and the window hole should be drawn out of the center line. When the window frame is installed in the hole, the center line should be aligned. The frame angle should be temporarily fixed. Carefully adjust the verticality, horizontality and straight angle of the window frame. The error should be within the allowable deviation range.

3. Check the diagonal and flatness deviation before the door and window fan enters the frame. After the frame, check the overlap width of the frame fan and the surrounding gap with the steel ruler and the feeler gauge until the requirements are met.

4. Install the hardware parts correctly and find that the damage should be replaced in time.

5. Do a good job of product protection and normal use and maintenance, to prevent external impact, and do not hang heavy objects, resulting in deformation of doors and windows. When using, it should be lightly closed to extend its service life.

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