CN110230589A - Eccentric wheel rotary squeezing drip pump - Google Patents
Eccentric wheel rotary squeezing drip pump Download PDFInfo
- 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
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES 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
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/142—Pressure infusion, e.g. using pumps
- A61M5/14212—Pumping with an aspiration and an expulsion action
-
- 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
- F04B43/12—Machines, pumps, or pumping installations having flexible working members having peristaltic action
- F04B43/1238—Machines, 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N13/00—Lubricating-pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N13/00—Lubricating-pumps
- F16N2013/003—Flexible-wall pumps
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Mechanical Engineering (AREA)
- Biomedical Technology (AREA)
- Anesthesiology (AREA)
- Vascular Medicine (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Reciprocating Pumps (AREA)
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
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.
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)
| 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)
| 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 |
-
2019
- 2019-07-10 CN CN201910642943.7A patent/CN110230589A/en active Pending
Patent Citations (3)
| 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)
| 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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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| DD01 | Delivery of document by public notice |
Addressee: Wu Benguo Document name: Deemed withdrawal notice |
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| DD01 | Delivery of document by public notice | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190913 |
|
| WD01 | Invention patent application deemed withdrawn after publication |