Title:
FULL-PLASTIC PISTOL SPRAY PUMP
Document Type and Number:
WIPO Patent Application WO/2022/052217
Kind Code:
A1
Abstract:
A full-plastic pistol spray pump, comprising a pump body (1). The lower part of the pump body (1) is connected to a locking cover (8); a liquid spray channel (11) is provided in the pump body (1); a nozzle (2) is provided at an outlet of the liquid spray channel (11); a liquid outlet channel (12) and a liquid inlet channel (13) which are isolated from each other in a vertical direction are provided in the pump body (1); the liquid outlet channel (12) is communicated with the liquid spray channel (11); a liquid guide chamber (14) is provided on one side of the liquid outlet channel (12) and the liquid inlet channel (13); the upper part of the liquid guide chamber (14) is always in communication with the liquid outlet channel (12) by means of a normally open port (15); a pumping piston (3) is provided in the liquid guide chamber (14); a trigger (4) capable of driving the pumping piston (3) to make piston movement left and right in the liquid guide chamber (14) is hinged onto the pump body (1); an elastic arm (5) capable of pressing against the pump body (1) and driving the trigger (4) to drive the pumping piston (3) to reset is provided on the trigger (4); a lateral one-way valve that can be opened during reset movement of the pumping piston (3) so as to enable the liquid guide chamber (14) to be communicated with the liquid inlet channel (13) is provided between the liquid guide chamber (14) and the liquid inlet channel (13). The full-plastic pistol spray pump is simple in structure and high in liquid inlet efficiency, and can make full use of a solution pumped into the liquid guide chamber.
Inventors:
LIANG PEIHUI (CN)
ZHU MAOYONG (CN)
ZHANG YONGLEI (CN)
LI JUN (CN)
ZHU MAOYONG (CN)
ZHANG YONGLEI (CN)
LI JUN (CN)
Application Number:
PCT/CN2020/122165
Publication Date:
March 17, 2022
Filing Date:
October 20, 2020
Export Citation:
Assignee:
MAJESTY PACKAGING SYSTEMS LTD (CN)
International Classes:
B65D47/34; B05B11/00
Foreign References:
| CN212830207U | 2021-03-30 | |||
| CN106029514A | 2016-10-12 | |||
| CN203789807U | 2014-08-27 | |||
| CN105620892A | 2016-06-01 | |||
| CN2772630Y | 2006-04-19 | |||
| CN104755178A | 2015-07-01 | |||
| CN105642470A | 2016-06-08 | |||
| JP2016140784A | 2016-08-08 |
Other References:
See also references of EP 4098578A4
Attorney, Agent or Firm:
ZHONGSHAN KECHUANG PATENT AGENT CO., LTD (CN)
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