Title:
PUMP WITH BUILT-IN PHOTOSENSITIVE METERING DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/033471
Kind Code:
A1
Abstract:
A pump with a built-in photosensitive metering device, comprising an upper pump body (1) and a lower pump body (2); the upper pump body (1) and the lower pump body (2) respectively have an upper cavity (11) and a lower cavity (21), the lower cavity (21) being provided internally with an iron core (3), the iron core (3) having an iron core hollow channel (32), the upper part of the iron core (3) having an iron core extension portion (31), the lower cavity (21) being provided with an upper compression spring (41) and a lower compression spring (42) which are respectively located on the upper side and lower side of the iron core (3), the upper cavity (11) being provided with a valve core (51) matching an upper outlet of the iron core hollow channel (32) and a valve core spring (52) for elastically compressing the valve core (51) at the upper outlet of the iron core hollow channel (32), the lower pump body (2) is provided with magnetic turns at the outer periphery thereof, the magnetic turns being provided with a bobbin (64) at the outer periphery thereof, enameled coils (65) being wound around the bobbin (64), and both sides of the upper pump body (1) are respectively provided with a luminous source (71) and a photosensitive component matching the luminous source (71). Said pump with a built-in photosensitive metering device has the advantages of simple structure, small volume, small occupied space, low production cost, convenience in assembly and application, long service life and the like which the available products do not possess.
Inventors:
XIONG YINGSHEN (CN)
Application Number:
PCT/CN2017/100543
Publication Date:
February 21, 2019
Filing Date:
September 05, 2017
Export Citation:
Assignee:
SHENZHEN CNHT LTD COMPANY (CN)
International Classes:
F04B13/00; F04B51/00; F04B53/00; F04B53/10; G01F1/66; H01F3/10; H01F5/02
Foreign References:
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| US4098560A | 1978-07-04 | |||
| CN102147276A | 2011-08-10 | |||
| US6942470B1 | 2005-09-13 | |||
| CN101363746A | 2009-02-11 | |||
| CN205478256U | 2016-08-17 | |||
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| CN103354800A | 2013-10-16 |
Attorney, Agent or Firm:
SHENZHEN SHENKEXIN INTELLECTUAL PROPERTY LLP. (CN)
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