Title:
OVERPRESSURE PROTECTION DEVICE FOR PORTABLE MINIATURE HIGH-PRESSURE COFFEE MACHINE
Document Type and Number:
WIPO Patent Application WO/2018/103153
Kind Code:
A1
Abstract:
Provided are an overpressure protection device for a portable miniature high-pressure coffee machine. The overpressure protection device comprises a pump barrel and a pump plug having a main body provided within the pump barrel. The pump plug is provided with a water incoming one-way valve, an upper hole, and a water outlet hole. The pump barrel is provided with a water incoming port at a corresponding location to an opening at a water incoming end of a valve port of the water incoming one-way valve. The upper hole and water outlet hole are in communication with the valve port of the water incoming one-way valve. The upper hole is in communication with the interior of the pump barrel. The pump plug is provided with a pressure-relief structure to remove water in the pump barrel when the water is under a high pressure, and comprises a water drainage structure to return the water removed by the pressure-relief structure back to the exterior of the pump barrel. The overpressure protection device of the present invention occupies a small space, has a simple and compact structure, is safe and reliable, and provides a stable effect, thus solving the overpressure protection problem of a portable miniature high-pressure coffee machine.
Inventors:
ZHAO KAI (CN)
Application Number:
PCT/CN2016/112379
Publication Date:
June 14, 2018
Filing Date:
December 27, 2016
Export Citation:
Assignee:
SHENZHEN STARESSO CULTURE CO LTD (CN)
International Classes:
F04B53/14; A47J31/58; F04B53/04; F04B53/12; F04B53/16
Foreign References:
| CN103479224A | 2014-01-01 | |||
| CN203662562U | 2014-06-25 | |||
| CN103054463A | 2013-04-24 | |||
| CN103126531A | 2013-06-05 | |||
| CN203234573U | 2013-10-16 | |||
| CN102599822A | 2012-07-25 | |||
| US5392694A | 1995-02-28 |
Attorney, Agent or Firm:
FOSHAN GUANGYING INTELLECTUAL PROPERTY FIRM (CN)
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