美女张开腿让男人捅,日本不卡一区二区,五月激情六月久久,人妻少妇看A偷人无码精品

The spring hinge is very important for a door. The spring hinge allows the door to open or close automatically, so that it can avoid embarrassment or theft because of forgetting to close the door sometimes. What are the specifications of spring hinges? How to install spring hinge? 

What is a spring hinge?

The spring hinge is a hinge that can be closed automatically after the door is opened. With spring and adjusting screw, the height and thickness of the plate can be adjusted up and down and left and right. The single spring hinge can only be opened in one direction, and the double spring hinge can be opened both inside and outside, which is mainly used for the door of public buildings.

What are the specifications of spring hinges?

Spring hinge points cover, half cover, no cover, can also be called straight bending, bending and bend. The cover is closed, the door completely covered is equal to the vertical plate, covered the entire vertical plate; after the half cover is closed, the door only covered the vertical plate half; not cover closed, the door is embedded within the cabinet, with vertical plate.

The spring hinge structure includes hinge cup, hinge seat and hinge arm. The hinge cup diameter is 35mm, depth is 11.5-14mm, the hinge seat fixed in the cabinet standing board, with four screws, adjust the distance error is about to install door, can respectively adjust position, position and position before and after the door.

Spring hinge specification type is very much, we commonly used spring hinge specifications have 50.8*30*1, 100*60*1, 63*35*1, 101.6*76.2*2, 88.9*88.9*3 and so on. The number of spring hinge opening and closing is generally more than 80 thousand; the spring hinge cup hole distance is generally: 48mm; spring hinge opening size standard is 35mm, big cup seat is 40mm.

How to install spring hinge?

1, before the spring hinge installation, should check the hinge and door and window frame, fan match.
2, check the hinge slot and hinge height, width and thickness match.
3, should check the hinge and its connection screws, fasteners are matching.
4, the hinge should be connected with the frame, fan material matching, such as steel frame door hinge used, and steel frame connected to the side of the welding, and the door connected to the wooden door is wood screw fixation.
5, in the spring hinge piece in the asymmetric case, should identify what page plate should be connected with the sash, which leaf plate should be connected with the window frame, one side connected with the shaft section should be fixed with the frame, one side connected with the shaft section should be fixed with the frame.
6, installation, should guarantee the same one hinge on the axis in the same vertical line, so as to avoid the door / window bounce.