CN110230589A - Eccentric wheel rotary squeezing drip pump - Google Patents

Eccentric wheel rotary squeezing drip pump Download PDF

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Publication number
CN110230589A
CN110230589A CN201910642943.7A CN201910642943A CN110230589A CN 110230589 A CN110230589 A CN 110230589A CN 201910642943 A CN201910642943 A CN 201910642943A CN 110230589 A CN110230589 A CN 110230589A
Authority
CN
China
Prior art keywords
silica gel
eccentric roller
gel hose
liquid
pump
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
CN201910642943.7A
Other languages
Chinese (zh)
Inventor
徐剑
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to CN201910642943.7A priority Critical patent/CN110230589A/en
Publication of CN110230589A publication Critical patent/CN110230589A/en
Pending legal-status Critical Current

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/14Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M5/142Pressure infusion, e.g. using pumps
    • A61M5/14212Pumping with an aspiration and an expulsion action
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B43/00Machines, pumps, or pumping installations having flexible working members
    • F04B43/12Machines, pumps, or pumping installations having flexible working members having peristaltic action
    • F04B43/1238Machines, pumps, or pumping installations having flexible working members having peristaltic action using only one roller as the squeezing element, the roller moving on an arc of a circle during squeezing
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16NLUBRICATING
    • F16N13/00Lubricating-pumps
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16NLUBRICATING
    • F16N13/00Lubricating-pumps
    • F16N2013/003Flexible-wall pumps

Abstract

Eccentric wheel rotary squeezing drip pump, pump assembly include motor (1);It pumps body case (2);It pumps body upper cover (3);" u "-shaped silica gel hose (4) is liquid feeding end;" u "-shaped silica gel hose (4-1) is outlet end;Upper cover of lock screw (5);It pumps extrusion chamber (6);Metal sleeve (7);Eccentric roller (8);D-shaped axis (9)." u "-shaped silica gel hose (4) liquid feeding end is put into the liquid for needing to export.DC3V power switch is opened, the rotation of eccentric roller (8) squeezes " u "-shaped silica gel hose, by the one after another drop of extrusion of liquid in " u "-shaped silica gel hose.

Description

Eccentric wheel rotary squeezing drip pump
Technical field
It is mainly concerned with fluid metering technical field, refers in particular to eccentric wheel rotary squeezing drip pump.
Background technique
With the development of technology, many special industries are higher and higher to the precision of metering and the requirement of cleanliness, such as raw Object pharmaceutical industry, medical industry, chemical industry etc..Currently, when carrying out accurate measurement to fluid, generally using plunger pump, compacted Dynamic pump technology.But existing way still has some shortcomings, to largely effect on the accuracy of metering.
In existing straight line peristaltic pump technology, clamping or the pine to hose are generally realized by the way of elevating movement It opens, and elastic hose component is arranged between roll wheel assembly and cover board, for convenience of the replacement of elastic hose, cover board is using fast-assembling The movable part of connection needs to open cover board when replacing elastic hose.Cover board needs to open simultaneously when thus replacing elastic hose every time Again it locks, and each locking state of cover board has large effect to measuring accuracy.In addition, the mode of elevating movement is to certain Measuring accuracy under particular state impacts, and essentially all of peristaltic pump is to use only to control a hose at present The mode of system, efficiency are very low.
Summary of the invention
The present invention in view of the deficienciess of the prior art, to provide a kind of structure simple, small in size, it is low in cost, high-efficient, The high eccentric wheel rotary squeezing drip pump of measuring accuracy.
Detailed description of the invention
Fig. 1 is eccentric wheel rotary squeezing drip pump appearance diagram of the present invention.
Fig. 2 is eccentric wheel rotary squeezing drip pump schematic diagram of internal structure of the present invention.
Specific embodiment
Sketch eccentric wheel rotary squeezing drip pump the names of the parts in conjunction with attached drawing 1 to be illustrated: pump assembly includes motor (1);It pumps body case (2);It pumps body upper cover (3);" U " shape silica gel hose (4) is liquid feeding end;" U " shape silica gel hose (4-1) is Outlet end;Upper cover of lock screw (5).
Sketch eccentric wheel rotary squeezing drip pump the names of the parts in conjunction with attached drawing 2 to be illustrated: pump assembly includes motor (1);It pumps body case (2);" U " shape silica gel hose (4) is liquid feeding end;" U " shape silica gel hose (4-1) is outlet end;Upper cover of lock Screw (5);It pumps extrusion chamber (6);Metal sleeve (7);Eccentric roller (8);D-shaped axis (9).
The motor (1) connects DC3V power supply;
Pumping body case (2) is molded with engineering plastics.
Pumping body upper cover (3) is molded with engineering plastics.
The D-shaped axis (9) is the output shaft of motor (1), diameter about 3mm.
The shape size of the centre bore of the eccentric roller (8) is consistent with the shape size of D-shaped axis (9)
The eccentric roller (8) covers on D-shaped axis (9) for tight fit.
The eccentric roller (8) is molded with engineering plastics.
The D-shaped axis hole center of the eccentric roller (8) will deviate the center 2mm of idler wheel (8).
The metal sleeve (7) is cut by ultra-thin stainless steel pipe.
The wall thickness of the stainless steel tube metal sleeve (7) selects 0.2mm thickness.
The internal diameter of the metal sleeve (7) is 0.2mm bigger than the outer diameter of eccentric roller (8) or so.
The metal sleeve (7) covers on eccentric roller (8) for loose fit.
The size of described pumping extrusion chamber (6) radius flattens " U " shape silica gel hose (4) with eccentric roller (8), flattens position No leakage is advisable.
The pumping extrusion chamber (6) is with D-shaped axis (9) for the center of circle.
On outer D-shaped axis (9).
The process that eccentric wheel rotary squeezing drip pump squeezes out point dropping liquid is sketched in conjunction with attached drawing 2.
" U " shape silica gel hose (4) liquid feeding end is put into the liquid for needing to export.DC3V power switch is opened, electric current is defeated Toward motor (1);Motor (1) rotation drives D-shaped axis (9) rotation, and D-shaped axis (9) drives eccentric roller (8) rotation, eccentric roller (8) Rotation, squeeze " U " shape silica gel hose, will in " U " shape silica gel hose liquid extrusion.Eccentric roller (8) for each revolution one Half time squeezed out drop.Half the time supplements liquid from " U " shape silica gel hose (4) liquid feeding end by atmospheric pressure.As long as in this way, not Power supply is disconnected, eccentric wheel rotary squeezing drip pump will be squeezed out outward one after another drop of liquid by certain period of time.Change motor (1) The drop number that eccentric wheel rotary squeezing drip pump squeezes out drop can be changed in rotation speed.If motor (1) rotates a circle per minute, that Eccentric wheel rotary squeezing drip pump one hour will very precisely in can squeeze out the drop of drop 60.The size of drop and " U " shape silica gel Inner diameter size is related.
In conclusion eccentric wheel rotary squeezing drip pump of the present invention is structurally reasonable, small in size, matching voltage is low, can be precisely Pump out the liquid of dribs and drabs.It can be applied in the infusion equipment of hospital, be applied to each laboratory, applied to each mechanical equipment In lubricating system.
Compared with the prior art, the advantages of the present invention are as follows: structure is simple, high-efficient, and measuring accuracy is high.
Above-described embodiment is only one of presently preferred embodiments of the present invention, is not limited the scope of the invention according to this, therefore: The various equivalence changes that all structures under this invention, shape, principle are done, should all be covered by within protection scope of the present invention.

Claims (3)

1. eccentric wheel rotary squeezing drip pump, pump assembly includes motor (1);It pumps body case (2);It pumps body upper cover (3);″ U " shape silica gel hose (4) is liquid feeding end;" U " shape silica gel hose (4-1) is outlet end;Upper cover of lock screw (5);Pump extrusion chamber (6);Metal sleeve (7);Eccentric roller (8);D-shaped axis (9).
2. the motor (1) connects DC3V power supply.Pumping body case (2) is molded with engineering plastics.
Pumping body upper cover (3) is molded with engineering plastics.The D-shaped axis (9) is the output shaft of motor (1), diameter about 3mm. The shape size of the centre bore of the eccentric roller (8) is consistent with the shape size of D-shaped axis (9);The eccentric roller (8) covers It is tight fit on D-shaped axis (9).The eccentric roller (8) is molded with engineering plastics.The D-shaped axis hole of the eccentric roller (8) Center will deviate the center 2mm of idler wheel (8).The metal sleeve (7) is cut by ultra-thin stainless steel pipe.The stainless steel tube The wall thickness of metal sleeve (7) selects 0.2mm thickness.The internal diameter of the metal sleeve (7) is bigger than the outer diameter of eccentric roller (8) 0.2mm or so.The metal sleeve (7) covers on eccentric roller (8) for loose fit.It is described to pump the big of extrusion chamber (6) radius Small to flatten " U " shape silica gel hose (4) with eccentric roller (8), flattening position no leakage is advisable.The pumping extrusion chamber (6) is with D Shape axis (9) is the center of circle.On outer D-shaped axis (9).
3. " U " shape silica gel hose (4) liquid feeding end is put into the liquid for needing to export.Open DC3V power switch, eccentric roller (8) rotation squeezes " U " shape silica gel hose, and the liquid in " U " shape silica gel hose is squeezed out.Eccentric roller (8) is for each revolution Half the time squeezes out drop.Half the time supplements liquid from " U " shape silica gel hose (4) liquid feeding end by atmospheric pressure.As long as in this way, Continuous switch power supply, eccentric wheel rotary squeezing drip pump will be squeezed out outward one after another drop of liquid by certain period of time.Change motor (1) Rotation speed, can be changed eccentric wheel rotary squeezing drip pump squeeze out drop drop number.
CN201910642943.7A 2019-07-10 2019-07-10 Eccentric wheel rotary squeezing drip pump Pending CN110230589A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910642943.7A CN110230589A (en) 2019-07-10 2019-07-10 Eccentric wheel rotary squeezing drip pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910642943.7A CN110230589A (en) 2019-07-10 2019-07-10 Eccentric wheel rotary squeezing drip pump

Publications (1)

Publication Number Publication Date
CN110230589A true CN110230589A (en) 2019-09-13

Family

ID=67855571

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910642943.7A Pending CN110230589A (en) 2019-07-10 2019-07-10 Eccentric wheel rotary squeezing drip pump

Country Status (1)

Country Link
CN (1) CN110230589A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111505318A (en) * 2020-05-15 2020-08-07 刘大基 Blood transfusion compatibility detection package analyzer
CN113700080A (en) * 2020-01-08 2021-11-26 黄奥煜 Energy-saving and environment-friendly multi-station water circulation device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1018973A (en) * 1996-06-28 1998-01-20 Tamagawa Nagao Tube pump
CN201568269U (en) * 2009-12-01 2010-09-01 江苏科海生物工程设备有限公司 Automatic feeding device of precise peristaltic pump
CN208831212U (en) * 2018-10-23 2019-05-07 重庆杰恒蠕动泵有限公司 A kind of miniature peristaltic pump

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1018973A (en) * 1996-06-28 1998-01-20 Tamagawa Nagao Tube pump
CN201568269U (en) * 2009-12-01 2010-09-01 江苏科海生物工程设备有限公司 Automatic feeding device of precise peristaltic pump
CN208831212U (en) * 2018-10-23 2019-05-07 重庆杰恒蠕动泵有限公司 A kind of miniature peristaltic pump

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113700080A (en) * 2020-01-08 2021-11-26 黄奥煜 Energy-saving and environment-friendly multi-station water circulation device
CN111505318A (en) * 2020-05-15 2020-08-07 刘大基 Blood transfusion compatibility detection package analyzer

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Addressee: Wu Benguo

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Application publication date: 20190913

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