Automatic anti-fall protection device for ascending

Automatic anti-fall protection device for ascending

  • CN 2,805,821 Y
  • Filed: 10/08/2005
  • Issued: 08/16/2006
  • Est. Priority Date: 08/31/2005
  • Status: Active Grant
First Claim
Patent Images

1. , a kind of automatic falling-proof protective device of ascending a height, comprise cat ladder (70), anti-falling device and track-type facilities thereof, it is characterized in that:

  • track-type facilities comprises longitudinal rail (61) and cross slide way (62), longitudinal rail is arranged at a side of cat ladder, cat ladder is fixed on the corresponding structures, and longitudinal rail is fixed on cat ladder or the structures;

    Anti-falling device comprises skeleton frame (10), brake-shoe (31) and braking shutoff device, below skeleton frame, be provided with the front jocket wheel (21) and the back guide wheel (23) that adapt with the guide rail guide groove, front jocket wheel and back guide wheel are installed on the skeleton frame by front axle (22) and hind axle (24) respectively;

    Above skeleton frame, two pairs of hinged ears (41) are set, the lower end of hinged ear is hinged on the inner side edge of skeleton frame by lower bearing pin (44) off-centre, the top of brake-shoe is hinged on the hinged ear by middle bearing pin (43), the upper end of hinged ear is by upper pin (42) articulated linkage (45), and the connecting rod middle part is provided with rope fastening hole (46);

    Between brake-shoe and connecting rod, be provided with back-moving spring (32), the lower end of back-moving spring is fixed on the brake-shoe by screw (33).

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