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Title:
HANDHELD PORTABLE CLEANING MACHINE HAVING DUAL LIQUID-COOLED PUMP
Document Type and Number:
WIPO Patent Application WO/2020/220505
Kind Code:
A1
Abstract:
A handheld portable cleaning machine having a dual liquid-cooled pump, comprising: a pump (23) driven by a motor (5), the pump having a pump water inlet (11) and a high-pressure water outlet (1); and a housing (20), the housing enclosing the pump (23) and the motor (5) in a sealed manner. The pump comprises: at least one plunger (13); a swash plate (14), the swash plate being driven by the motor to drive the plunger to move linearly; and a pump housing (26), the pump housing having a sealed cavity (12), the sealed cavity accommodating the plunger, the swash plate and a lubricating coolant. The pump housing is provided with at least one cooling channel (7), a water inlet (6) in communication with one end of the cooling channel, and a water outlet (8) in communication with the other end of the cooling channel, the water inlet (6) being connected to an external water source, and the water outlet (8) being connected to the pump water inlet (11). The cleaning machine can perform cooling by adding external flowing water while performing cooling by means of the coolant inside the pump, achieving dual liquid cooling of a combination of inside and outside cooling and a combination of circulation and non-circulation cooling, so as to thoroughly solve the pump body cooling problem, greatly prolonging the service life of the pump, and further avoiding the case of scalding a human body during use, and said machine is safe to use.

Inventors:
LIN YOUYU (CN)
LIU KAI (CN)
CAI JIBO (CN)
FAN BAOCAI (CN)
WANG YANG (CN)
Application Number:
PCT/CN2019/099765
Publication Date:
November 05, 2020
Filing Date:
August 08, 2019
Export Citation:
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Assignee:
SUMEC HARDWARE & TOOLS CO LTD (CN)
International Classes:
B08B3/02; F04B53/08
Domestic Patent References:
WO2018184659A12018-10-11
Foreign References:
CN110052342A2019-07-26
CN205478149U2016-08-17
CN208128044U2018-11-20
CN108787554A2018-11-13
US20090045271A12009-02-19
Attorney, Agent or Firm:
NANJING ZONGHENG INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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