Title:
PUMP ASSEMBLY, SPRAY SYSTEM, MOBILE DEVICE, AND SPRAY METHOD
Document Type and Number:
WIPO Patent Application WO/2021/056455
Kind Code:
A1
Abstract:
A pump assembly (100), a spray system (10), a mobile device (1000), and a spray method. The pump assembly (100) comprises water pump devices (110), a liquid dispenser (120), and a pressure relief mechanism (130). The liquid dispenser (120) comprises liquid outlet pipes (121) and at least one liquid inlet pipe (122), and the number of the liquid outlet pipes (121) is equal to the number of the water pump devices (110). The liquid inlet pipe (122) is in communication with a liquid supply tank (200) of the spray system. The liquid outlet pipes (121) are connected between the liquid inlet pipe (122) and the water pump devices (110), and are used to guide liquids from the liquid supply tank (200) to the water pump devices. A pressure relief opening (140) is provided on the liquid dispenser (120), and is opened or closed by means of operating the pressure relief mechanism (130). When the pressure relief opening (140) is opened, gas can be discharged from the pump assembly (100) via the pressure relief opening (140). The pump assembly can prevent pesticide liquids from being wasted and reduce labor costs.
Inventors:
SHU ZHAN (CN)
ZHOU LE (CN)
ZHOU WANREN (CN)
ZHOU LE (CN)
ZHOU WANREN (CN)
Application Number:
PCT/CN2019/108685
Publication Date:
April 01, 2021
Filing Date:
September 27, 2019
Export Citation:
Assignee:
SZ DJI TECHNOLOGY CO LTD (CN)
International Classes:
A01M7/00; B64D1/18
Foreign References:
| CN203675939U | 2014-07-02 | |||
| CN109071018A | 2018-12-21 | |||
| CN109071020A | 2018-12-21 | |||
| CN205633063U | 2016-10-12 | |||
| CN106428568A | 2017-02-22 | |||
| CN209073310U | 2019-07-09 | |||
| US10406390B2 | 2019-09-10 |
Attorney, Agent or Firm:
SHENZHEN LIDAO INTELLECTUAL PROPERTY AGENCY (GENERAL PARTNERSHIP) (CN)
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