Title:
STABLE SUBMERSIBLE PUMP CONTROL SWITCH
Document Type and Number:
WIPO Patent Application WO/2023/197450
Kind Code:
A1
Abstract:
A submersible pump control switch comprises a submersible pump body (10) and a control device (20). Water holding tanks (210) are provided inside control columns (21) of the control device (20); an upper side wall of each water holding tank (210) is provided with a water inlet hole (2100); a pressure sensor (22) is fixed to the bottom surface of each water holding tank (210); a pressing plate (23) is vertically movably provided on the lower portion of each water holding tank (210); a lower water tank (2101) is formed in the lower end surface of each control column (21); the lower portion of a side wall of each water holding tank (210) is provided with a plurality of U-shaped water flow pipes (2102) which are uniformly distributed along the circumference and have inward-facing openings; the lower side of the submersible pump body (10) is provided with a lower support cylinder (14), the middle portion of a side wall of the lower support cylinder (14) being provided with a plurality of lower water inlet holes (140) which are uniformly distributed along the circumference and are open in the radial direction; floating plates (26) are respectively vertically arranged on the left end and the right end of the lower support cylinder (14); a vertical connection rod (25) is fixed on the upper end surface of each floating plate (26); a plug (27) is formed at the upper end of each vertical connection rod (25). The control switch can control a submersible pump to be switched off in time, thus preventing the submersible pump from burning out due to running without water.
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Inventors:
JI DONGBIAO (CN)
Application Number:
PCT/CN2022/101459
Publication Date:
October 19, 2023
Filing Date:
June 27, 2022
Export Citation:
Assignee:
JI DONGBIAO (CN)
International Classes:
F04D13/08; F04B49/025; F04D15/02
Foreign References:
| CN214660765U | 2021-11-09 | |||
| CN204827883U | 2015-12-02 | |||
| CN211623747U | 2020-10-02 | |||
| US20180128265A1 | 2018-05-10 | |||
| US5340281A | 1994-08-23 |
Attorney, Agent or Firm:
LANTIAN INTELLECTUAL PROPERTY AGENCY (CN)
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