Connecting structure between volute of blower and conversion interface

摘要

A connecting structure, including: a volute including an air inlet and an air outlet; and a conversion interface. A connecting part is disposed on an outer side of the air outlet. The connecting part includes: a lower plate; a lower lug protruding outward from each end of the lower plate; and an upper flange disposed above the lower plate. The conversion interface includes a sleeve. An upper plate protrudes from a rear part of the sleeve. Two upper lugs protrude outward from two ends of the upper plate, respectively. A lower flange is disposed on the rear part of the sleeve beneath the upper plate. The upper plate is disposed on the upper flange. The lower flange is disposed on a curved convex block that protrudes upward from an outer edge of the lower plate. The upper lug is disposed on the lower lug.

主权项

1. A connecting structure, comprising:
a) a volute (1), the volute comprising an air inlet (11), and an air outlet (12); and b) a conversion interface (2);wherein:
a connecting part is disposed on an outer side of the air outlet (12); the connecting part comprises: a lower plate (15); two lower lugs (13) each comprising a boss (14), an upper flange (17), and a curved convex block (16); the two lower lugs (13) protrude outward from two ends of the lower plate (15), respectively; the upper flange (17) is disposed above the lower plate (15); the curved convex block (16) protrudes upward from an outer edge of the lower plate (15); and the boss (14) is in a cylindrical shape and extends from an end surface of the lower lug (13); the conversion interface (2) comprises: a sleeve (21), an upper plate (24), two upper lugs (22) each comprising a mounting hole (23), and a lower flange (26); the upper plate (24) protrudes from a rear part of the sleeve (21); the two upper lugs (22) protrude outward from two ends of the upper plate (24), respectively; the lower flange (26) is disposed on the rear part of the sleeve (21) beneath the upper plate (24); and the mounting hole is arranged on a bottom of the upper lug (22); and the upper plate (24) is disposed on the upper flange (17); the lower flange (26) is disposed on the curved convex block (16); the upper lug (22) is disposed on the lower lug (13); and the boss (14) of the lower lug (13) is received by the mounting hole (23) of the upper lug (22).