CN109162903A - A kind of novel circular plate type float trap piezoelectric pump - Google Patents

A kind of novel circular plate type float trap piezoelectric pump Download PDF

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Publication number
CN109162903A
CN109162903A CN201811097730.2A CN201811097730A CN109162903A CN 109162903 A CN109162903 A CN 109162903A CN 201811097730 A CN201811097730 A CN 201811097730A CN 109162903 A CN109162903 A CN 109162903A
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CN
China
Prior art keywords
pump body
type floating
floating valve
disc
piezoelectric
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Pending
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CN201811097730.2A
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Chinese (zh)
Inventor
何丽鹏
吴晓强
王哲
李威
赵达
王力
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Changchun University of Technology
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Changchun University of Technology
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Priority to CN201811097730.2A priority Critical patent/CN109162903A/en
Publication of CN109162903A publication Critical patent/CN109162903A/en
Pending legal-status Critical Current

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    • 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
    • F04B43/00—Machines, pumps, or pumping installations having flexible working members
    • F04B43/02—Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms
    • F04B43/04—Pumps having electric drive
    • F04B43/043—Micropumps
    • F04B43/046—Micropumps with piezoelectric drive
    • 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
    • F04B43/00—Machines, pumps, or pumping installations having flexible working members
    • F04B43/0009—Special features
    • 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
    • F04B43/00—Machines, pumps, or pumping installations having flexible working members
    • F04B43/02—Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms
    • F04B43/028—Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms with in- or outlet valve arranged in the plate-like flexible member
    • 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
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/10—Valves; Arrangement of valves
    • 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
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/16—Casings; Cylinders; Cylinder liners or heads; Fluid connections
    • F04B53/162—Adaptations of cylinders

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

Abstract

本发明公布了一种新型圆板式浮动阀压电泵，包括下泵体、上泵体、密封圈、橡胶圈、压电振子、上盖、圆板式浮动阀、紧固螺钉和紧固螺母；所述下泵体开设进液口和出液口，上泵体开设进口腔和出口腔，所述上泵体进口腔与下泵体进液口的配合处装配圆板式浮动阀，所述上泵体出口腔与下泵体出液口的配合处也安装圆板式浮动阀，所述上泵体与下泵体之间通过密封圈进行密封，所述泵腔上部安装压电振子，压电振子通过上下两个密封圈进行固定，所述上盖圆周阵列4个螺纹小孔、上泵体圆周阵列4个螺孔和下泵体各圆周阵列4个螺纹孔，所述通过紧固螺钉和紧固螺母的配合进行固定压电泵；本发明的圆板式浮动阀具有开启压力小、压电泵输出流量大等优点，在微流量药物注射等领域具有良好的应用前景。

The invention discloses a novel disc type floating valve piezoelectric pump, comprising a lower pump body, an upper pump body, a sealing ring, a rubber ring, a piezoelectric vibrator, an upper cover, a disc type floating valve, a fastening screw and a fastening nut; The lower pump body is provided with a liquid inlet port and a liquid outlet port, the upper pump body is provided with an inlet port and an outlet port, and a disc-type floating valve is installed at the cooperation between the upper pump body inlet port and the lower pump body liquid inlet. A disc-type floating valve is also installed at the cooperation between the outlet of the pump body and the liquid outlet of the lower pump body. The upper pump body and the lower pump body are sealed by a sealing ring. The vibrator is fixed by two upper and lower sealing rings, the upper cover is circumferentially arrayed with 4 threaded holes, the upper pump body is circumferentially arrayed with 4 screw holes, and the lower pump body is circumferentially arrayed with 4 threaded holes. The piezoelectric pump is fixed by the cooperation of the tightening nut; the disc-type floating valve of the present invention has the advantages of low opening pressure and large output flow of the piezoelectric pump, and has good application prospects in the fields of micro-flow drug injection and the like.

Description

A kind of novel circular plate type float trap piezoelectric pump
Technical field
The invention belongs to field of fluid machinery, specially a kind of novel circular plate type float trap piezoelectric pump.
Background technique
Piezoelectricity positive displacement pump is deformed piezoelectric vibrator using inverse piezoelectric effect, generates the volume of pump chamber and alternately becomes Change, the inside and outside pressure difference that generates of pump chamber realizes the inflow and output of liquid under the effect of the pressure.Piezoelectric pump has small in size, smart Degree is high, not by electromagnetic interference, mechanical wear is low the features such as, be widely used in aviation field, drug conveying, agricultural drop irrigation etc. and lead Domain, while the defects of that there is output pressures is low for Valveless piezoelectric pump, and output flow is few, reflux is serious so that its practical application by Great limitation is arrived, therefore, the output flow and output pressure for improving piezoelectric pump are the difficulties that current piezoelectric pump is faced Topic.
Summary of the invention
The purpose of the present invention is in view of the above problems, a kind of novel circular plate type float trap piezoelectric pump is provided, to improve pressure The output flow of electric pump.
In order to achieve the above object, the technical solution adopted by the present invention is that:
A kind of novel circular plate type float trap piezoelectric pump, it is characterised in that: including lower pump body (1), sealing ring (2), upper pump casing (3), rubber ring (4), piezoelectric vibrator (5), upper cover (6), fastening screw (7), circular plate type float trap (8) and fastening nut (9)；
The lower pump body (1) opens up inlet (1-1) and liquid outlet (1-2), and it is close that upper pump casing (3) side opens up annular Sealing groove (3-2), lower pump body side open up circular seal groove (1-4) structure, upper and lower by installation sealing ring (2) sealing The pump housing, the upper pump casing (3) open up snout cavity (3-4) and outlet plenum (3-5) structure, the snout cavity that the upper pump casing (3) opens up Circular plate type float trap (8) are installed at the cooperation for the inlet (1-1) that (3-4) and lower pump body (1) is opened up, the upper pump casing (3) is opened If outlet plenum (3-5) and lower pump body (1) liquid outlet (1-2) cooperation for opening up at also install circular plate type float trap (8), it is described on The lower seal groove cavity (3-3) of rubber ring (4) is placed in the setting of the pump housing (3) upper side, and upper pump casing (3) outboard side edge opens up placement rubber Annular seal groove (3-2) structure of (4) is enclosed, the central part of the upper pump casing (3) installs piezoelectric vibrator (5), the piezoelectricity vibration Sub (5) are fixed by installing lower two rubber rings (4), 4 threaded holes (1-3) of lower pump body (1) circumference array, on 4 screw holes (3-1) of the pump housing (3) circumference array, 4 threaded apertures (6-1) of upper cover (6) circumference array, by fastening screw (7) and Fastening nut (9) cooperation achievees the purpose that fixed piezoelectric pump；
Further, upper end surface inlet (1-1) that the lower pump body (1) opens up opens up annulus rib (1-6) structure, Netted baffle plate (1-5) structure is opened up at the liquid outlet of inlet annulus rib same level side；
Further, center snout cavity (3-4) that the upper pump casing (3) opens up opens up a hollow cylinder structure, passes through 4 hollow cylinder structures in 90 degree of fixed centers of distribution crossbeam that cavity wall is drawn；
Further, outlet plenum (3-5) diameter that the upper pump casing (3) opens up is smaller, prevented circular plate type float trap to Upper pump casing (3) floats；
Further, the circular plate type float trap (8) is concavity, surrounding convex structure；
Further, upper cover (6) center opens up wire guide (6-2) structure, and upper cover (6) lower end opens up annular groove (6-3) structure.
Of the invention has the prominent advantages that:
Lower pump body inlet of the present invention opens up annulus rib, and hollow cylinder structure is arranged in upper pump casing snout cavity, in its cooperation Place's installation circular plate type float trap, traditional passive valve is replaced using circular plate type float trap, can preferably realize the inflow of liquid With the output pump housing, liquid outlet is arranged identical structure, increases the output flow of the pump housing；
Piezoelectric vibrator is sealed using rubber ring up and down, ensure that its leakproofness, and secure piezoelectric vibrator, by tight Gu piezoelectric pump is fixed in the cooperation of screw, fastening screw and threaded hole.
Detailed description of the invention
Fig. 1 is the sectional view of upper pump casing.
Fig. 2 is the structural schematic diagram of upper pump casing.
Fig. 3 is the sectional view of lower pump body.
Fig. 4 is the structural schematic diagram of lower pump body.
Fig. 5 is the structural schematic diagram of upper cover.
Fig. 6 is the explosive view of piezoelectric pump.
Fig. 7 is the sectional view of piezoelectric pump.
Specific embodiment
In order to make those skilled in the art more fully understand technical solution of the present invention, with reference to the accompanying drawing to the present invention into Row detailed description, the description of this part be only it is exemplary and explanatory, should not have any limitation to protection scope of the present invention Effect.
Please refer to Fig. 1~7, in the embodiment of the present invention, specific structure includes: lower pump body (1), sealing ring (2), upper pump casing (3), rubber ring (4), piezoelectric vibrator (5), upper cover (6), fastening screw (7), circular plate type float trap (8) and fastening nut (9)；
The lower pump body (1) opens up inlet (1-1) and liquid outlet (1-2), and it is close that upper pump casing (3) side opens up annular Sealing groove (3-2), lower pump body side open up circular seal groove (1-4) structure, upper and lower by installation sealing ring (2) sealing The pump housing, the upper pump casing (3) open up snout cavity (3-4) and outlet plenum (3-5) structure, and the upper pump casing snout cavity (3-4) is under Circular plate type float trap (8) are installed at the cooperation of pump housing inlet (1-1), the outlet plenum (3-5) that the upper pump casing (3) opens up is under It is also installed circular plate type float trap (8) at liquid outlet (1-2) cooperation that the pump housing opens up, rubber is placed in the upper pump casing upper side setting The lower seal groove cavity (3-3) of cushion rubber (4), upper pump casing outside side open up annular seal groove (3-2) structure for placing rubber ring (4), The central part of the upper pump casing (3) installs piezoelectric vibrator (5), and the piezoelectric vibrator (5) is by installing lower two rubber rings (4) it is fixed, 4 described 4 threaded holes (1-3) of lower pump body (1) circumference array, upper pump casing (3) circumference array screw hole (3- 1), 4 threaded apertures (6-1) of upper cover (6) circumference array reach fixed pressure by fastening screw (7) and fastening nut (9) cooperation The purpose of electric pump；
Upper end surface inlet (1-1) that the lower pump body (1) opens up opens up annulus rib (1-6) structure, the feed liquor Netted baffle plate (1-5) structure is opened up at the liquid outlet of mouth annulus rib same level side, when liquid flows out the pump housing, netted gear Side (1-5) structure and annulus rib (1-6) structure can prevent the circular plate type float trap emersion pump housing；
Center snout cavity (3-4) that the upper pump casing (3) opens up opens up a hollow cylinder structure, is drawn by pump wall 4 are fixed centrally located hollow cylinder structure in 90 degree of distribution crossbeams, when liquid flows into upper pump casing (3) by inlet, Prevent circular plate type float trap to float to upper pump casing (3)；
The circular plate type float trap (8) is upper and lower end towards concavity, and edge structure protruding to the outside can be more preferable Cooperated with the upper and lower pump housing, make floating effect more preferably；
Outlet plenum (3-5) diameter that the upper pump casing (3) opens up is smaller, liquid reflux can be prevented, on liquid flows through When the pump housing (3), the flowing velocity of liquid is increased, and can prevent circular plate type float trap from floating to upper pump casing (3)；
The upper cover (6) opens up annular groove (6-3) structure, and center opens up wire guide (6-2) structure, piezoelectric vibrator (5) Conducting wire is drawn by this wire guide (6-2) and is attached with power supply.
The course of work packet sealing of the utility model patent includes first course of work and second course of work:
First course of work: giving the excitation of piezoelectric vibrator (5) ac signal, becomes when piezoelectric vibrator (5) is bent to upper cover When shape, upper pump casing volume increases, and pressure reduces, and the pump housing is inside and outside to generate pressure difference, and under the effect of the pressure, liquid passes through lower pump body Inlet (1-1) enter pump chamber, circular plate type float trap (8) under the influence of the impact force to snout cavity (3-4) float, Jin Eryu Hollow cylinder following table face contact, liquid will pass through between gap flow into upper pump casing, partially liq can pass through liquid outlet stream at this time Enter upper pump casing, the circular plate type float trap (8) of liquid outlet floats to the outlet plenum of upper pump casing, and then completely enclosed outlet plenum, makes liquid Body cannot flow into inside upper pump casing；
Second course of work: when piezoelectric vibrator (5) is bent downwardly deformation, upper pump casing volume reduces, and pressure increases, and liquid exists Under the action of pressure, upper pump casing is flowed out by snout cavity (3-4) and outlet plenum (3-5), under the influence of the impact force, snout cavity it Between circular plate type float trap (8) float downwards, completely enclosed annulus rib, liquid cannot be by inlet (1-1) to outflow Out, the circular plate type float trap (8) of outlet plenum floats to the netted baffle plate of lower pump body, and the opening degree of liquid outlet is made to reach maximum, Liquid just flows out upper pump casing by the liquid outlet of lower pump body (1-1) just to be realized by the cycle operation of above-mentioned two course of work Liquid continuously flows into and exports the pump housing.
Used herein a specific example illustrates the principle and implementation of the invention, and described above is applicable in In facilitating the understanding of the method and its core concept of the invention.The above is only a preferred embodiment of the present invention, it is noted that Due to the finiteness of literal expression, and objectively there is unlimited specific structure, for those skilled in the art For, without departing from the principle of the present invention, several improvement, retouching or variation can also be made, it can also be by above-mentioned skill Art feature is combined in the right way；These improve retouching, variation or combination, or not improved design and skill by invention Art scheme directly applies to other occasions, is regarded as protection scope of the present invention.

Claims (6)

1.一种新型圆板式浮动阀压电泵，其特征在于：包括下泵体(1)、密封圈(2)、上泵体(3)、橡胶圈(4)、压电振子(5)、上盖(6)、紧固螺钉(7)、圆板式浮动阀(8)和紧固螺母(9)；所述下泵体(1)开设进液口(1-1)和出液口(1-2)，所述上泵体(3)侧边开设环形密封槽(3-2)，下泵体侧边开设圆环状密封槽(1-4)结构，通过安装密封圈(2)进而密封上、下泵体，所述上泵体(3)开设进口腔(3-4)和出口腔(3-5)结构，所述上泵体(3)开设的进口腔(3-4)与下泵体(1)开设的进液口(1-1)的配合处安装圆板式浮动阀(8)，所述上泵体(3)开设的出口腔(3-5)与下泵体(1)开设的出液口(1-2)配合处也安装圆板式浮动阀(8)，所述上泵体(3)上部侧边设置安放橡胶圈(4)的下密封槽(3-3)，上泵体(3)外侧侧边开设安放橡胶圈(4)的环形密封槽(3-2)结构，所述上泵体(3)的中央部位安装压电振子(5)，所述压电振子(5)通过安装上下两个橡胶圈(4)进行固定，所述下泵体(1)圆周阵列4个螺纹孔(1-3)、上泵体(3)圆周阵列4个螺孔(3-1)，上盖(6)圆周阵列4个螺纹小孔(6-1)，通过紧固螺钉(7)和紧固螺母(9)配合达到固定压电泵的目的。1. A novel disc type floating valve piezoelectric pump, characterized in that: comprising a lower pump body (1), a sealing ring (2), an upper pump body (3), a rubber ring (4), a piezoelectric vibrator (5) , upper cover (6), fastening screws (7), disc-type floating valve (8) and fastening nuts (9); the lower pump body (1) is provided with a liquid inlet (1-1) and a liquid outlet (1-2), an annular sealing groove (3-2) is provided on the side of the upper pump body (3), and a circular sealing groove (1-4) structure is provided on the side of the lower pump body. ) and then seal the upper and lower pump bodies, the upper pump body (3) is provided with an inlet cavity (3-4) and an outlet cavity (3-5) structure, the inlet cavity (3-5) opened by the upper pump body (3) 4) A disc-type floating valve (8) is installed at the joint with the liquid inlet (1-1) opened in the lower pump body (1), and the outlet opening (3-5) opened in the upper pump A disc-type floating valve (8) is also installed at the matching position of the liquid outlet (1-2) opened in the pump body (1), and a lower sealing groove ( 3-3), the outer side of the upper pump body (3) is provided with an annular sealing groove (3-2) structure for placing the rubber ring (4), and a piezoelectric vibrator (5) is installed in the central part of the upper pump body (3) , the piezoelectric vibrator (5) is fixed by installing two upper and lower rubber rings (4), the lower pump body (1) is circumferentially arrayed with four threaded holes (1-3), and the upper pump body (3) is circumferentially arrayed 4 screw holes (3-1), the upper cover (6) has 4 threaded holes (6-1) in a circumferential array, and the purpose of fixing the piezoelectric pump is achieved by the cooperation of the fastening screws (7) and the fastening nuts (9). . 2.根据权利要求1所述的一种新型圆板式浮动阀压电泵，其特征在于：所述下泵体(1)开设的进液口(1-1)上端面处开设圆环挡边(1-6)结构，所述进液口圆环挡边同一水平侧面的出液口(1-2)处开设网状挡板(1-5)结构。2. A novel disc-type floating valve piezoelectric pump according to claim 1, characterized in that: a circular rib is provided at the upper end face of the liquid inlet (1-1) opened by the lower pump body (1) (1-6) Structure, a mesh baffle (1-5) structure is provided at the liquid outlet (1-2) on the same horizontal side of the annular baffle of the liquid inlet. 3.根据权利要求1所述的一种新型圆板式浮动阀压电泵，其特征在于：所述上泵体(3)开设的进口腔(3-4)中央开设一个空心圆柱结构，通过腔壁引出的4根呈90度分布横梁固定中央的空心圆柱结构。3. A novel disc type floating valve piezoelectric pump according to claim 1, characterized in that: a hollow cylindrical structure is provided in the center of the inlet cavity (3-4) opened by the upper pump body (3), and the cavity passes through the cavity. 4 beams drawn out from the wall in a 90-degree distribution are fixed in the center of the hollow cylindrical structure. 4.根据权利要求1所述的一种新型圆板式浮动阀压电泵，其特征在于：所述上泵体(1)开设的出口腔(3-5)直径较小，杜绝了圆板式浮动阀浮入上泵体(3)内部。4. A novel disc-type floating valve piezoelectric pump according to claim 1, characterized in that: the diameter of the outlet cavity (3-5) opened by the upper pump body (1) is smaller, preventing the disc-type floating The valve floats into the upper pump body (3). 5.根据权利要求4所述的一种新型圆板式浮动阀，其特征在于：所述圆板式浮动阀(8)为中央凹陷，周围凸出状结构。5 . The novel disc type floating valve according to claim 4 , wherein the disc type floating valve ( 8 ) has a concave center and a protruding structure around it. 6 . 6.根据权利要求1所述的一种新型圆板式浮动阀压电泵，其特征在于：所述上盖(6)中央开设导线孔(6-2)结构，上盖(6)下端开设环形槽(6-3)结构。6. A new type of disc-type floating valve piezoelectric pump according to claim 1, characterized in that: a wire hole (6-2) structure is provided in the center of the upper cover (6), and a ring is provided at the lower end of the upper cover (6). Slot (6-3) structure.
CN201811097730.2A 2018-09-20 2018-09-20 A kind of novel circular plate type float trap piezoelectric pump Pending CN109162903A (en)

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CN109973366A (en) * 2019-04-11 2019-07-05 长春工业大学 A Conical Elastic Valve Piezoelectric Pump
CN112412736A (en) * 2020-11-18 2021-02-26 青岛农业大学 Multi-cavity piezoelectric gas-liquid pump
CN113123945A (en) * 2021-04-26 2021-07-16 长春工业大学 Tuning fork type resonant pump based on flexible support for agricultural sprinkling irrigation
CN113431765A (en) * 2021-07-16 2021-09-24 华中科技大学 Piezoelectric micro pump

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CN103032297A (en) * 2012-12-06 2013-04-10 浙江师范大学 Piezoelectric pump based on disk type sensor valve
CN207005371U (en) * 2017-07-17 2018-02-13 深圳市火王燃器具有限公司 A kind of check valve for reducing water and making an uproar
CN207609821U (en) * 2017-12-19 2018-07-13 保定良工阀门有限公司 A kind of energy-saving damping check-valves
CN209083523U (en) * 2018-09-20 2019-07-09 长春工业大学 A kind of novel circular plate type float trap piezoelectric pump

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CN109973366A (en) * 2019-04-11 2019-07-05 长春工业大学 A Conical Elastic Valve Piezoelectric Pump
CN112412736A (en) * 2020-11-18 2021-02-26 青岛农业大学 Multi-cavity piezoelectric gas-liquid pump
CN113123945A (en) * 2021-04-26 2021-07-16 长春工业大学 Tuning fork type resonant pump based on flexible support for agricultural sprinkling irrigation
CN113431765A (en) * 2021-07-16 2021-09-24 华中科技大学 Piezoelectric micro pump
CN113431765B (en) * 2021-07-16 2022-08-02 华中科技大学 A piezoelectric micropump

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