WO2015109764A1 - 电磁计量泵 - Google Patents

电磁计量泵 Download PDF

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Publication number
WO2015109764A1
WO2015109764A1 PCT/CN2014/081404 CN2014081404W WO2015109764A1 WO 2015109764 A1 WO2015109764 A1 WO 2015109764A1 CN 2014081404 W CN2014081404 W CN 2014081404W WO 2015109764 A1 WO2015109764 A1 WO 2015109764A1
Authority
WO
WIPO (PCT)
Prior art keywords
connecting rod
check valve
spring
metering pump
way valve
Prior art date
Application number
PCT/CN2014/081404
Other languages
English (en)
French (fr)
Inventor
叶之谦
Original Assignee
叶之谦
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 叶之谦 filed Critical 叶之谦
Publication of WO2015109764A1 publication Critical patent/WO2015109764A1/zh

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B13/00—Pumps specially modified to deliver fixed or variable measured quantities
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
    • F04B17/03—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors
    • F04B17/04—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors using solenoids

Definitions

  • the utility model relates to an electromagnetic metering pump.
  • the current electromagnetic metering pump has a complicated structure, and the conventional spherical valve used has poor sealing performance, and the precision of the micro-picking is not high.
  • the technical problem to be solved by the utility model is to provide an electromagnetic metering pump capable of accurately taking a small amount of liquid.
  • the utility model provides an electromagnetic metering pump, which comprises an electromagnetic coil, an adjusting screw, a spring, a ejector rod, a connecting rod, a porcelain cylinder, a lock nut, a skin cavity membrane, a liquid inlet channel, and a liquid inlet port.
  • the inlet port, the outlet port, the outlet port check valve and the outlet port one end of the jack is connected to the connecting rod, the other end is connected with the spring, and the other end of the adjusting screw is pressed, the connecting rod and the locking
  • the space formed by the nut and the dermis membrane is a skin cavity, wherein the inlet check valve and the outlet check valve are rubber-shaped tapered check valves, and the tapered check valve includes a A tapered surface and a circular base with a through hole in the middle of the tapered surface.
  • the utility model has the advantages that the device has accurate liquid taking and good sealing performance.
  • the tapered rubber one-way valve has a simple structure and is suitable for precise control in small instruments. It is more durable than general spherical check valves and has better sealing performance.
  • Figure 1 is a schematic view of the structure of the present invention.
  • Figure 2 is an enlarged schematic view of the tapered check valve of the present invention.
  • an electromagnetic metering pump comprises an electromagnetic coil 1, an adjusting screw 2, a spring 3, a jack 4, a connecting rod 5, a porcelain cylinder 6, a lock nut 7, a dermal membrane 8, and a liquid inlet passage.
  • the adjustment screw 2 presses the other end of the spring 3, the space formed by the connecting rod 5, the lock nut 7 and the dermal cavity film 8 is a skin cavity, and the inlet port check valve 10 and the outlet port check valve 13 are rubber Conical check valve made of material.
  • Fig. 2 is an enlarged schematic view of a tapered rubber check valve including a tapered surface and a circular base having a through hole in the middle of the tapered surface. Since the rubber material has the characteristics of compression rebound, the small hole of the taper tip is in a sealed state under pressure, and the gas or liquid can only move toward the tapered tip by the circular shape, and cannot be reversely reversed.
  • the tapered rubber check valve has a simple structure and is suitable for precise control in small instruments. It has better sealing performance than a general spherical check valve and ensures the accuracy of the metering pump.
  • the connecting rod 5 pulls the skin cavity, the liquid enters through the liquid inlet port 11, enters the skin cavity through the liquid inlet port check valve 10; the electromagnet loses power, and the connecting rod 5 is compressed by the spring 3 In the skin chamber, the inlet port check valve 10 is closed at this time, and the liquid flows to the liquid outlet port 14 through the outlet port check valve 13 under the action of the chamber pressure, thereby repeating. Adjust the metering pump's take-up capacity by adjusting the top adjustment screw.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)
  • Check Valves (AREA)

Abstract

一种电磁计量泵，包括电磁线圈（1）、调节螺丝（2）、弹簧（3）、顶杆（4）、连杆（5），瓷缸（6）、锁紧螺母（7）、皮腔膜（8）、进液口通道（9）、进液口单向阀（10）、进液口（11）、出液口通道（12）、出液口单向阀（13）和出液口（14），顶杆（4）一端和连杆（5）连接，另一端和弹簧（3）连接，调节螺丝（2）压紧弹簧（3）另一端，连杆（5）、锁紧螺母（7）和皮腔膜（8）形成的空间为皮腔，进液口单向阀（10）和出液口单向阀（13）为橡胶材质的锥形单向阀，锥形单向阀包含一个锥形面和一个圆形底座，锥形面中间有一个通孔。本装置采用锥形橡胶单向阀，取液精确，密封性能好，适用于微小仪器中的精确控制。

Description

电磁计量泵
技术领域
本实用新型涉及电磁计量泵。
背景技术
目前的电磁计量泵结构复杂， 且使用的常规球形阀密封性能差， 微量取液 的精度不高。
发明内容
本实用新型所要解决的技术问题是，提供一种能精确微量取液的电磁计量 泵。
为了解决上述问题， 本实用新型提供一种电磁计量泵， 包括电磁线圈、 调 节螺丝、 弹簧、 顶杆、 连杆， 瓷缸、 锁紧螺母、 皮腔膜、 进液口通道、 进液口 单向阀、进液口、 出液口通道、 出液口单向阀和出液口， 顶杆一端和连杆连接， 另一端和弹簧连接， 调节螺丝压紧弹簧另一端， 连杆、 锁紧螺母和皮腔膜形成 的空间为皮腔， 其特征在于， 所述进液口单向阀和出液口单向阀为橡胶材质的 锥形单向阀， 所述锥形单向阀包含一个锥形面和一个圆形底座， 锥形面中间有 一个通孔。
本实用新型的优点在于， 本装置取液精确， 密封性能好。 采用锥形橡胶单 向阀， 结构简单， 适用于微小仪器中的精确控制， 比一般球形单向阀更耐用， 且密闭性能更好。
附图说明
图 1为本实用新型结构示意图。
图 2为本实用新型锥形单向阀放大示意图。
图示中的标号为：
1——电磁线圈； 2 调节螺丝； 3——弹簧； 4——顶杆； 5——连杆； 6 ——瓷缸； 7 锁紧螺母； 8 皮腔膜； 9 进液口通道； 10 进液口 单向阀； 11——进液口； 12——出液口通道； 13——出液口单向阀； 14——出 液口。 具体实施方式
下面结合附图对本实用新型做详细说明，实施例的用途仅在于解释本发明 而非限定技术方案。
实施例
如图 1所示， 一种电磁计量泵， 包括电磁线圈 1、 调节螺丝 2、 弹簧 3、 顶杆 4、 连杆 5， 瓷缸 6、 锁紧螺母 7、 皮腔膜 8、 进液口通道 9、 进液口单向 阀 10、 进液口 11、 出液口通道 12、 出液口单向阀 13和出液口 14， 顶杆 4一 端和连杆 5连接， 另一端和弹簧 3连接， 调节螺丝 2压紧弹簧 3另一端， 连杆 5、 锁紧螺母 7和皮腔膜 8形成的空间为皮腔， 所述进液口单向阀 10和出液口 单向阀 13为橡胶材质的锥形单向阀。
如图 2所示， 图 2为锥形橡胶单向阀的放大示意图， 包含一个锥形面和一 个圆形底座， 锥形面中间有一个通孔。 由于橡胶材质具有压紧回弹的特性， 压 力状态下锥尖部的小孔处于密闭状态，气体或者液体只能通过圆形面向锥形锥 尖部运动， 不可以反向倒流。 锥形橡胶单向阀结构简单， 适用于微小仪器中的 精确控制， 比一般的球形单向阀密闭性能更好， 保证计量泵取液精度。
使用时， 当电磁铁得电， 连杆 5拉动皮腔， 液体由进液口 11进入， 经进 液口单向阀 10进入皮腔； 电磁铁失电， 连杆 5在弹簧 3作用下压缩皮腔， 此 时进液口单向阀 10闭合，在腔压作用下液体经由出液口单向阀 13流向出液口 14， 以此反复。 通过调节顶部的调节螺丝实现调节计量泵取液容量。
以上所述仅是本实用新型的优选实施方式， 应当指出， 对于本技术领域的 普通技术人员， 在不脱离本实用新型原理的前提下， 还可以做出若干改进和润 饰， 这些改进和润饰也应视为本实用新型的保护范围。

Claims

权 利 要 求 书
1. 电磁计量泵， 包括电磁线圈、 调节螺丝、 弹簧、 顶杆、 连杆， 瓷缸、 锁紧螺母、 皮 腔膜、 进液口通道、 进液口单向阔、 进液口、 出液口通道、 出液口单向阀和出液口， 顶杆 一端和连杆连接， 另一端和弹簧连接， 调节螺丝压紧弹簧另一端， 连杆、 锁紧螺母和皮腔 膜形成的空间为皮腔， 其特征在于， 所述进液口单向阀和出液口单向阀为橡胶材质的锥形 单向阀， 所述锥形单向阀包含一个锥形面和一个圆形底座， 锥形面中间有一个通孔。
PCT/CN2014/081404 2014-01-27 2014-07-01 电磁计量泵 WO2015109764A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201420052645.5U CN203702508U (zh) 2014-01-27 2014-01-27 电磁计量泵
CN201420052645.5 2014-01-27

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111089045A (zh) * 2020-01-16 2020-05-01 杭州德译医疗科技有限公司 一种新型电磁计量泵

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4673007A (en) * 1986-09-15 1987-06-16 Huang Ing Chung Air and liquid pump for cushion shoes, combined a pressure scale and a ball pen
JPH01163458A (ja) * 1987-12-21 1989-06-27 Aisin Seiki Co Ltd 電磁フユーエルポンプ
JPH09158828A (ja) * 1995-12-08 1997-06-17 Taisan Kogyo Kk 冷媒液用電磁ポンプ
CN101363434A (zh) * 2008-09-08 2009-02-11 重庆山外山科技有限公司 一种血液净化用隔膜式计量泵
CN201330688Y (zh) * 2008-04-11 2009-10-21 熊颖申 一种带有止回通气阀的电磁水泵

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4673007A (en) * 1986-09-15 1987-06-16 Huang Ing Chung Air and liquid pump for cushion shoes, combined a pressure scale and a ball pen
JPH01163458A (ja) * 1987-12-21 1989-06-27 Aisin Seiki Co Ltd 電磁フユーエルポンプ
JPH09158828A (ja) * 1995-12-08 1997-06-17 Taisan Kogyo Kk 冷媒液用電磁ポンプ
CN201330688Y (zh) * 2008-04-11 2009-10-21 熊颖申 一种带有止回通气阀的电磁水泵
CN101363434A (zh) * 2008-09-08 2009-02-11 重庆山外山科技有限公司 一种血液净化用隔膜式计量泵

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