US 12,246,203 B2
Sprinkler coupling structure
So Yeon Jeon, Hwaseong-si (KR); and Young Ae Song, Asan-si (KR)
Assigned to YEONEUN CO., LTD., Gyeonggi-Do (KR)
Appl. No. 18/010,221
Filed by YEONEUN CO., LTD., Hwaseong-si (KR)
PCT Filed Sep. 8, 2022, PCT No. PCT/KR2022/013551
§ 371(c)(1), (2) Date Dec. 14, 2022,
PCT Pub. No. WO2023/075135, PCT Pub. Date May 4, 2023.
Claims priority of application No. 10-2021-0144473 (KR), filed on Oct. 27, 2021.
Prior Publication US 2024/0299791 A1, Sep. 12, 2024
Int. Cl. F16L 41/14 (2006.01); A62C 35/68 (2006.01)
CPC A62C 35/68 (2013.01) [F16L 41/14 (2013.01)] 3 Claims
OG exemplary drawing
 
1. A sprinkler coupling structure comprising:
a reducing nipple (10) configured to penetrate a through hole (h) formed in a ceiling panel (P), and manufactured integrally with a flexible pipe body (F) whose upper side is connected from a water supply source and into which fire extinguishing water flows;
a head (20) coupled to a lower end of the reducing nipple (10) and configured to spray the fire extinguishing water supplied from the water supply source through the reducing nipple (10);
a nipple fixing means (30) configured to fix and couple the reducing nipple (10) to the ceiling panel (P) so that a height at which the head (20) protrudes from the ceiling panel (P) is adjusted; and
a head protection net (40) configured to protect the head (20) from a lower side of the ceiling panel (P),
wherein the nipple fixing means (30) comprises:
an upper unit (60) located at a top of the through hole (h) of the ceiling panel (P) and configured to have a nipple hole (n) in a center thereof into which the reducing nipple (10) is inserted;
a lower unit (70) inserted from a bottom of the through hole (h) to be fixedly coupled to the upper unit (60), and configured to have a nipple hole (n) in a center thereof into which the reducing nipple (10) is inserted;
an adjustment member (80) coupled to an outer circumference of the reducing nipple (10) so that a height thereof is adjusted, and seated on an upper side of the upper unit (60) to support the reducing nipple (10); and
a fastening member (90) fastened to the upper side of the upper unit (60) and configured to fix the reducing nipple (10) to the upper unit (60) by pressing the adjustment member (80) when fastened to the upper unit (60),
wherein the reducing nipple (10) has a male thread portion (10a) formed on a portion of the outer circumference thereof, and the adjustment member (80) has a female thread portion (80a) fastened to the male thread portion (10a) on an inner circumferential surface thereof,
wherein when the female thread portion (80a) rotates on the male thread portion (10a), the adjustment member (80) ascends or descends along the outer circumferential surface of the reducing nipple (10).