Bahagian perkakasan untuk tingkap, penutupan selak

pintu lebih dekat:

Perkakas yang boleh menutup atau membetulkan daun pintu yang dibuka secara automatik dalam kedudukan tertentu. Ada yang mempunyai fungsi engsel, dan ada yang mempunyai ketahanan api. Varieti utama ialah spring lantai, spring atas pintu, katapel pintu, ambang pintu, pengapit pintu, muncung pintu magnetik, dsb.

① Floor spring: also known as earth dragon. Installed in the lower part of the doors and windows. It is made of gray cast iron, carbon steel, spring steel, cast steel, etc., processed into parts and assembled.

②Door top spring: an automatic door closing device that uses the elastic force of a clockwork spring or a spiral spring to close the door leaf. A buffer cylinder is installed inside to reduce the door closing speed.

③Door slingshot: It is punched out of low-carbon strip steel, and is equipped with low-carbon cold-drawn steel ejector rods to close the door by elastic force.

④Door stopper: a simple positioner that brakes the door leaf and prevents the door leaf from colliding with the wall. Installed on the outer lower corner of the door leaf, the door leaf can be positioned at any angle.

⑤Door chuck: An appliance that fixes the door leaf. It is composed of a knife-edge base and a triangular steel leather chuck. There are two types: horizontal and vertical. The base is made of gray cast iron; the chuck is made of spring steel, and the surface is blued.

⑥Magnetic door suction head: The function is the same as the door clip door and window hardware head, the door leaf is fixed by the suction of the permanent magnet, and there is no noise during use.

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