Pin-connected panel house kitchen, washroom extract duct

Pin-connected panel house kitchen, washroom extract duct

CN
  • CN 204,609,236 U
  • Filed: 02/09/2015
  • Issued: 09/02/2015
  • Est. Priority Date: 02/09/2015
  • Status: Active Grant
First Claim
Patent Images

1. a pin-connected panel house kitchen, washroom extract duct, comprise four pieces of precast plates (1), wherein precast plate (1) is rectangular plate, four pieces of precast plates (1) form cross section as wall be square pipe main body, it is characterized in that:

  • the metal supporting frames (2) also comprising two round rectangle structures, two described metal supporting frames (2) are separately positioned on the inner both sides of described pipe main body and pass through bolt-locking, each described metal supporting frames (2) outer wall is also formed with a circle groove respectively, an elastic ring (3) is correspondingly provided with respectively in each described groove.

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