US 12,276,440 B2
Tooling and method for flexible through connection between double liners of water heater
Sen Liang, Qingdao (CN); Ruijun Sun, Qingdao (CN); Qinglun Che, Qingdao (CN); and Long Wu, Sanming (CN)
Assigned to Qingdao University of Technology, Qingdao (CN)
Filed by Qingdao University of Technology, Qingdao (CN)
Filed on Jul. 19, 2023, as Appl. No. 18/354,871.
Claims priority of application No. 202310073932.8 (CN), filed on Jan. 16, 2023.
Prior Publication US 2023/0358442 A1, Nov. 9, 2023
Int. Cl. F24H 9/14 (2006.01); F24H 1/18 (2022.01); F24H 9/00 (2022.01)
CPC F24H 9/14 (2013.01) [F24H 1/181 (2013.01); F24H 9/0005 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A tooling for flexible through connection of a double-liner water heater, comprising:
a tooling connecting plate;
wherein the tooling is configured for connection of an upper liner and a lower liner of the double-liner water heater with a gap there between less than or equal to 7 mm; two ends of the tooling connecting plate are each provided with a through hole; a transition shaft is arranged in the through hole; the transition shaft is in clearance fit with the tooling connecting plate; and the transition shaft is screwedly fastened to the tooling connecting plate; and
one end of the transition shaft is provided with an end hole, and the end hole is configured to fit an inner flange of the upper liner; and the other end of the transition shaft is configured as a shaft head fitting an outer flange of the lower liner.