Title:
ONE-WAY FLOW VALVE
Document Type and Number:
WIPO Patent Application WO/2018/218493
Kind Code:
A1
Abstract:
A one-way flow valve (10) is provided with a chamber (21) for allowing an airflow to flow and a housing (20) in communication with an air intake opening (25) and an air discharge opening (24) of the chamber (21). A valve body mounting seat (30) is provided with an air ventilation portion (32) in communication with an air intake region (212) and an air discharge region (211), a movable portion (33) located in the air ventilation portion (32), and at least two bridging portions (34) for fixing the movable portion (33) in the air ventilation portion (32). A valve body (40) is provided a central region (41) and an outer ring region (42) extending outwards from the center region (41) and thicker than the central region (41). The valve body (40) has a choke state in which the air ventilation portion (32) is completely shielded and an air ventilation state allowing the airflow to enter the air discharge region (211). The valve body (40) moves in the direction in which the movable portion (33) of the valve body mounting seat (30) faces to the air discharge opening (24), so that the bridge portions (34) are deformed on the movable portion (33), which increases the clearance between the valve body (40) and the valve body mounting seat (30) and allowing gas to circulate in the body in a larger flow.
Inventors:
WANG ZHIGANG (CN)
Application Number:
PCT/CN2017/086580
Publication Date:
December 06, 2018
Filing Date:
May 31, 2017
Export Citation:
Assignee:
TANGTRING SEATING TECH INC (CN)
International Classes:
F16K15/06; F16K15/14; F16K15/20
Foreign References:
| CN205534419U | 2016-08-31 | |||
| US4986310A | 1991-01-22 | |||
| CN204083391U | 2015-01-07 | |||
| CN205064938U | 2016-03-02 | |||
| CN205173589U | 2016-04-20 |
Attorney, Agent or Firm:
LECOME INTELLECTUAL PROPERTY AGENT LTD. (CN)
Download PDF: