Drowning-prevention lifesaving device

Drowning-prevention lifesaving device

  • CN 107,215,440 B
  • Filed: 05/17/2017
  • Issued: 09/15/2020
  • Est. Priority Date: 05/17/2017
  • Status: Active Grant
First Claim
Patent Images

1. The utility model provides a prevent drowned life saving equipment which characterized by:

  • the lifesaving air bag comprises a lifesaving air bag, a shell, an air source steel cylinder, a control valve seat, a firing pin, water-soluble tablets, a striking hammer, a spring II and a water through shell, wherein through holes are formed in two ends of the shell, one end of the shell is sleeved with the lifesaving air bag, and the other end of the shell is sealed by the control valve seat;

    an anti-reverse flow limiting valve is installed in a through hole at one end, sleeved with a life-saving air bag, of the shell, and mainly comprises an inflation seat, a spring I and a small steel ball, wherein an inflation hole I, an inflation hole II and an inflation cavity communicated with the inflation hole I and the inflation hole II are formed in the inflation seat;

    the shell is internally provided with a gas source steel cylinder, the shell is not contacted with the gas source steel cylinder, and the gas outlet end of the gas source steel cylinder is connected with the control valve seat;

    the protective cover is sleeved outside the gas source steel cylinder, one end of the protective cover is open, the other end of the protective cover is a cylindrical body with a vent hole, the open end of the protective cover is in threaded connection with the control valve seat, and the protective cover is not in contact with the shell;

    the control valve seat is a hollow column, an inflation flow hole penetrating through the hollow cavity is formed in the control valve seat, the control valve seat is connected with one end of the shell in a sealing mode, and the inflation flow hole is exposed in the inner cavity of the shell;

    a hollow cavity of the control valve seat is internally provided with a firing pin, the firing pin and the hammer are separated by a water-soluble tablet, the hammer is positioned in a water through shell, the water through shell is connected with the control valve seat, and the spring II is compressed by the hammer and the water through shell together;

    the control valve seat is of a hollow cylindrical structure, threads are arranged on the side wall of the control valve seat, protruding steps radially extend out of the side wall of the control valve seat, the protruding steps divide the control valve seat into two sections, one section of hollow cavity is small in volume and penetrates through the inflation flow holes, the other section of hollow cavity is large in volume, the number of the inflation flow holes is 2-8, and the center line of the inflation flow holes is perpendicular to the center line of the hollow cavity;

    the sealing connection means that the inner wall of the shell is connected with the outer wall of the control valve seat through threads, and the end face of the shell is tightly attached to the protruding step of the control valve seat through a plane sealing gasket;

    the water passing shell is connected with a section of the control valve seat without an inflation flow hole through threads, and 4 water passing holes are formed in the end face of the water passing shell;

    the outside cover of leading to water shell has the protective housing, is equipped with the cobalt chloride test paper between leading to water shell and protective housing.

View all claims
    ×
    ×

    Thank you for your feedback

    ×
    ×