Title:
PRESSURE LIMITING VALVE APPLIED TO VACUUM FRESH-KEEPING MACHINE
Document Type and Number:
WIPO Patent Application WO/2022/022285
Kind Code:
A1
Abstract:
A pressure limiting valve applied to a vacuum fresh-keeping machine, relating to the technical field of pressure valves. The pressure limiting valve comprises a valve body (1), an upper valve cover (2) and a valve core rod (3). An air inlet channel (11) is provided in one side of the valve body (1), the upper valve cover (2) is fixedly arranged at the upper end of the valve body (1), an air outlet channel (12) is provided in the lower end of the valve body (1), and the valve core rod (3) is provided in the valve body (1) in an up-down movable mode by means of a connecting assembly and is used for opening or closing the air outlet channel (12). The pressure limiting valve can be mounted in a vacuum fresh-keeping machine, so that a negative pressure value in a fresh-keeping container can be effectively controlled when the vacuum fresh-keeping machine is vacuumized; thus, the vacuum container is prevented from being shrunk and deformed, and the pressure limiting valve has the advantages of simple structure, ingenious design, good practicability, wide application range, etc.
Inventors:
ZHOU YIYUN (CN)
Application Number:
PCT/CN2021/106263
Publication Date:
February 03, 2022
Filing Date:
July 14, 2021
Export Citation:
Assignee:
XIAMEN YOUO INTELLIGENT TECH CO LTD (CN)
International Classes:
F16K1/36; F16K17/06; F16K1/46; F16K27/02; F16K27/08
Foreign References:
| CN212718229U | 2021-03-16 | |||
| CN201818855U | 2011-05-04 | |||
| CN102966776A | 2013-03-13 | |||
| CN101881349A | 2010-11-10 | |||
| CN201731135U | 2011-02-02 | |||
| JPH0775670A | 1995-03-20 |
Attorney, Agent or Firm:
XIAMEN YUANCHUANG PATENT FIRM (GENERAL PARTNERSHIP) (CN)
Download PDF:
Previous Patent: TARGET OBJECT SENSING METHOD AND APPARATUS
Next Patent: METHOD AND APPARATUS FOR TRANSMITTING CSI REPORT
Next Patent: METHOD AND APPARATUS FOR TRANSMITTING CSI REPORT