US 12,186,680 B2
Bubble machine
Leyan Chen, Shantou (CN)
Assigned to SHANTOU HUALONG TOYS CO., LTD, Shantou (CN)
Appl. No. 17/799,614
Filed by SHANTOU HUALONG TOYS CO., LTD, Guangdong (CN)
PCT Filed Feb. 5, 2021, PCT No. PCT/CN2021/075387
§ 371(c)(1), (2) Date Aug. 12, 2022,
PCT Pub. No. WO2022/147874, PCT Pub. Date Jul. 14, 2022.
Claims priority of application No. 202120056712.0 (CN), filed on Jan. 11, 2021.
Prior Publication US 2023/0083190 A1, Mar. 16, 2023
Int. Cl. A63H 33/28 (2006.01); A63H 27/10 (2006.01)
CPC A63H 33/28 (2013.01) [A63H 27/10 (2013.01); A63H 2027/1075 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A bubble machine, comprising:
a core comprising:
a core body provided with an air outlet, wherein air is dischargeable from the air outlet;
a bubble outlet head provided with a liquid inlet and a liquid return port, and being hollow; and
an air guiding pipe, wherein the air guiding pipe has two ends that are connected to and in communication with one end of the bubble outlet head and the air outlet, respectively; and
a housing arranged on the core, being a flexible inflatable housing and provided with a first opening and a second opening,
wherein part of the core is located in the housing;
wherein a bubble outlet of the core is exposed outside the housing, and the housing is a flexible inflatable housing;
wherein an other end of the bubble outlet head is provided with the bubble outlet;
wherein the air guiding pipe is located in the housing;
wherein the bubble outlet corresponds to the first opening, and the second opening is hermetically connected to the air guiding pipe or the core body;
wherein the bubble outlet head is provided with a smearing device which is able to smear liquid onto the bubble outlet to form a layer of liquid film, the smearing device comprising:
a scraper; and
a rotating strip being flexible, wherein a rotating end is arranged in the core body; and
a rotating shaft of the scraper is connected to the rotating end in the core body by the rotating strip, wherein the rotating end rotates to drive the scraper to rotate by the rotating strip.