Drain

Drain

  • CN 105,431,207 A
  • Filed: 07/16/2014
  • Published: 03/23/2016
  • Est. Priority Date: 07/23/2013
  • Status: Active Application
First Claim
Patent Images

1. a drainage element, it comprises:

  • Draining body (10), it has the connecting portion (14) that can connect waste line;

    Water trap, it comprises water trap stake portion (20), described water trap stake portion (20) has inlet opens (22) at upper end (21) place and has exit opening (23) at lower end, described water trap stake portion (20) extends in water trap body (30), and described water trap body (30) is opened at top place and is formed as having the shape of water trap holder;

    AndFire equipment, its in fire situation by utilizing intumescent material to close described water trap,It is characterized in that,Pipe close (40) is arranged in described water trap body (30), and intumescent material (1) is arranged between described pipe close (40) and described water trap body (30), make in fire situation, be pushed against the exit opening (23) of described water trap stake portion (20) by intumescent material (1) the described pipe close (40) expanded and close described exit opening (23) thus.

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