Portable fire extinguishing device

摘要

Disclosed is a portable fire extinguishing device, which comprises a casing (1) and a cartridge (2) provided inside the casing (1). The device is characterized in that: the casing (1) comprises a first half casing (4), a second half casing (5) fitted to the first half casing (4), a fastening ring (6) and a bottom cover (7); the first half casing (4) and the second half casing (5) are butted; the fastening ring (6) is provided on the top ends of the first half casing (4) and the second half casing (5) so as to fasten the both; and the bottom cover (7) is provided at the bottoms of the both. The first half casing, the second half casing, the fastening ring and the bottom cover are clamped and fixedly connected with each other to form a whole casing so that the whole wall thickness of the casing is uniform, thus improving injection moulding processes, reducing the difficulty in manufacturing a mould, saving plastic resources, and facilitating installation and disassembly.

主权项

1. A portable fire extinguishing device, comprising a casing (1) and a cartridge (2) provided inside the casing (1), wherein the casing (1) comprises a first half casing (4), a second half casing (5) fitted to the first half casing (4), a fastening ring (6) and a bottom cover (7); the first half casing (4) and the second half casing (5) are butted; the fastening ring (6) is provided on the top ends of the first half casing (4) and the second half casing (5) so as to fasten the first half casing (4) and the second half casing (5); and the bottom cover (7) is provided at the bottoms of the first half casing (4) and the second half casing (5);
the inner walls of the first half casing (4) and the second half casing (5) are respectively provided with annular ribs (11) and clamping ribs (12) corresponding with each other; the annular ribs extend in a circumferential direction of the casing and are capable of implementing radial locating; the clamping ribs are capable of implementing axial locating; the annular ribs (11) are fitted with the outer wall of the cartridge (2); wherein a jet end of the cartridge (2) is further provided with an explosion venting device (3); wherein the explosion venting device (3) comprises a frictional layer (14), a link (13), a link guiding unit (15) and a link limiting device (16); the link (13) is connected with a cartridge cover of the cartridge (2); the frictional layer (14) is provided between the link (13) and the outer wall of the cartridge (2); the frictional layer (14) provides a frictional resistance and a buffering force for the link (13) when the link (13) is guided by the link guiding unit (15) to displace along a direction towards which a hot air stream of the cartridge (2) is effected; link guiding unit (15) is a device capable of providing a guiding function for the link (13) when the link (13) is moving; the link limiting device (16) is a device capable of fixing the link (13) when an extremity of the link (13) reaches an spout of the cartridge (2).