US 11,992,854 B2
Air mixing nozzle tip structure
Myung Hwan Kim, Suwon-si (KR)
Assigned to INUS CO., LTD., Asan-si (KR)
Appl. No. 17/637,526
Filed by INUS CO., LTD., Asan-si (KR)
PCT Filed Sep. 27, 2021, PCT No. PCT/KR2021/013091
§ 371(c)(1), (2) Date Feb. 23, 2022,
PCT Pub. No. WO2022/108089, PCT Pub. Date May 27, 2022.
Claims priority of application No. 10-2020-0154514 (KR), filed on Nov. 18, 2020.
Prior Publication US 2024/0050967 A1, Feb. 15, 2024
Int. Cl. B05B 7/04 (2006.01); B05B 7/08 (2006.01); E03D 9/08 (2006.01)
CPC B05B 7/0425 (2013.01) [B05B 7/0876 (2013.01); E03D 9/08 (2013.01)] 1 Claim
OG exemplary drawing
 
1. An air mixing nozzle tip structure, comprising: a nozzle tip body in which a wash water moving hole and a bidet water moving hole for movement of wash water and bidet water are formed therethrough, and coupled to a nozzle main body; and a nozzle tip cover welded to an upper part of the nozzle tip body, the nozzle tip cover having a wash water ejection hole and a bidet water ejection hole that are formed to communicate with the wash water moving hole and the bidet water moving hole, respectively, so that the wash water and the bidet water are sprayed, the nozzle tip structure further comprising:
an air mixing inlet formed in the nozzle tip cover, communicating with the wash water ejection hole to introduce external air is mixed;
an air guide formed to be protruded on an upper portion of the nozzle tip body, adjacent to the wash water moving hole, and allowing the air introduced through the air mixing inlet to be ejected together with the wash water through the wash water ejection hole; and
an air supply passage formed to extend backward inside the nozzle tip cover from the air mixing inlet and facilitating an inflow of air to the air guide,
wherein the air mixing inlet is formed on one side or each of opposite sides of the nozzle tip cover to control an inlet amount of air,
the air guide is formed in a circular shape along an edge of the wash water moving hole, with a guide surface being formed on an outer surface thereof in a direction toward the air supply passage to be inclined at a predetermined angle to guide the inflow of air, and to control the inlet amount of air according to the angle of the guide surface, wherein the air guide is located inside the wash water ejection hole to prevent the wash water from flowing into the air mixing inlet and blocking the air supply passage, a distance between an upper surface of the air guide and a final water outlet surface of the wash water ejection hole is secured at least 2 mm to prevent irregularity of the inflow of air, and a wing part extending in a width direction of the nozzle tip body is formed on each side of the air guide, and coupling grooves are formed on the inside of the nozzle tip cover to correspond to the wing part, and
the air supply passage is formed with a larger cross-sectional area than the air mixing inlet to increase an inflow speed of the air introduced into the air mixing inlet.