CN104922757A - Double-acting pneumatic miniature infusion pump - Google Patents
Double-acting pneumatic miniature infusion pump Download PDFInfo
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- CN104922757A CN104922757A CN201510305383.8A CN201510305383A CN104922757A CN 104922757 A CN104922757 A CN 104922757A CN 201510305383 A CN201510305383 A CN 201510305383A CN 104922757 A CN104922757 A CN 104922757A
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- reversing valve
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Abstract
The invention relates to the field of pneumatic pumps, and aims to provide a double-acting pneumatic miniature infusion pump which comprises a gas flow reversing valve, a gas flow reversing valve stem, two diaphragm leaves, two gas cavity covers, two middle rods, two plungers and two pump head assemblies. The two diaphragm leaves, the two gas cavity covers, the two middle rods, the two plungers and the two pump head assemblies are respectively arranged on two sides of the gas flow reversing valve. The double-acting pneumatic miniature infusion pump has the advantages that double-acting pneumatic diaphragm devices are used as power sources, accordingly, the double-acting pneumatic miniature infusion pump is simple in structure, good in reliability and easy and convenient to operate and is economical and practical.
Description
Technical field
The invention relates to air driven pump field, particularly a kind of double acting pneumatic micro infusion pump.
Background technology
Existing micro-infusion pump all adopts motor Direct driver, and its weak point is, every platform pump all should configure a reducing gear, and is driven by a motor, and equipment cost and operation energy consumption are all larger.
For significantly reducing the energy resource consumption of pump, reducing electric power system Installed capital cost, being badly in need of a kind of micro-infusion pump that can adapt to present stage demand.
Summary of the invention
Main purpose of the present invention is to overcome deficiency of the prior art, provides a kind of and adopts gas actuation power source, and the occasion being applicable to gas source condition is used for the pneumatic infusion pump of alternative electronic infusion pump.For solving the problems of the technologies described above, solution of the present invention is:
A kind of double acting pneumatic micro infusion pump is provided, the power gas source conveying liquid that gas source pipe can be utilized to carry, described double acting pneumatic micro infusion pump comprises airflow-reversing valve, airflow-reversing valve rod, diaphragm, air cavity lid, intermediate bar, plunger and pump head assembly; Wherein, diaphragm, air cavity lid, intermediate bar, plunger, pump head assembly are respectively provided with two, and are separately positioned on the both sides of airflow-reversing valve;
Described airflow-reversing valve rod is arranged in the middle of airflow-reversing valve, and the two ends of airflow-reversing valve rod difference (with screw) are fixed with a diaphragm; Two air cavity lids are arranged on the both sides of airflow-reversing valve respectively, and the diaphragm outer shroud at airflow-reversing valve rod two ends, (passing through screw) is fixed between corresponding air cavity lid respectively; One end difference (by screw) of two intermediate bars is fixedly connected with corresponding diaphragm, and the other end is separately installed with a plunger; Two plungers are arranged in corresponding pump head assembly respectively;
Often overlap pump head assembly and comprise pump head body, feed liquor check valve, discharge opeing check valve, plunger seal, connected body, feed liquor header, discharge opeing header, three way cock, air relief valve and moisture trap assembly;
Connected body often in cover pump head assembly is for installing pump head body, one end of connected body is arranged on the outside of corresponding air cavity lid respectively, two pump head bodies are individually fixed on the other end of connected body in respective pump head assembly, and slidingly contact between connected body and corresponding intermediate bar; Described plunger seal is separately positioned in the pump head body of respective pump head assembly, and two plungers are being installed in corresponding plunger seal respectively, and plunger seal is used for coupled columns and fills in row reciprocation sealing; The import of two air relief valve and moisture trap assembly is connected with gas source pipe respectively, exports and is connected with airflow-reversing valve respectively by steel pipe, and air relief valve and moisture trap assembly are for regulating the pressure of power gas source, and the hydrolysate in detachment dynamic source of the gas;
Often overlap the feed liquor check valve, the discharge opeing check valve that are interconnected in pump head assembly, be separately positioned on below and the top of corresponding pump head body; And two feed liquor check valves are connected with feed liquor header respectively, two discharge opeing check valves are connected with discharge opeing header respectively; Utilize three way cock's two connectors to connect two feed liquor headers respectively, the 3rd connector of this three way cock is inlet; Utilize three way cock's two connectors to connect two discharge opeing headers respectively, the 3rd connector of this three way cock is leakage fluid dram.
As further improvement, described air relief valve and moisture trap assembly comprise air relief valve, moisture trap, and moisture trap is also connected with fluid reservoir, for storing the isolated liquid of moisture trap.
As further improvement, described often overlapping in pump head assembly also comprises two lubricating grease charging machines, four lubricating grease charging machines in the pneumatic infusion pump of double acting, are arranged in two plunger seal, top that two place's intermediate bars and connected body slidingly contact position respectively.
As further improvement, the area of described diaphragm and the ratio of the sectional area of plunger are not less than 130:1 (effective diameter of diaphragm is equal with the effective diameter of the air cavity that air cavity lid is formed).
Compared with prior art, the invention has the beneficial effects as follows:
The present invention adopts double acting pneumatic diaphragm device as power source, thus makes pneumatic transfusion pump structure simple, and good reliability is economical and practical, and easy and simple to handle.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present invention.
Fig. 2 is outline drawing of the present invention.
Fig. 3 is right view of the present invention.
Reference numeral in figure is: 1 pump head body; 2 discharge opeing check valves; 3 plunger seal; 4 discharge opeing header and three way cock; 5 lubricating grease charging machines; 6 airflow-reversing valves; 7 diaphragms; 8 air cavity lids; 9 intermediate bars; 10 connected bodies; 11 feed liquor check valves; 12 feed liquor header and three way cock; 13 plungers; 14 airflow-reversing valve rods; 15 air relief valve and moisture trap assembly.
Detailed description of the invention
Below in conjunction with accompanying drawing and detailed description of the invention, the present invention is described in further detail:
The pneumatic infusion pump of double acting as shown in Figure 1, Figure 2, Figure 3 shows comprises airflow-reversing valve 6, airflow-reversing valve rod 14, diaphragm 7, air cavity lid 8, intermediate bar 9, plunger 13 and pump head assembly, the power gas source conveying liquid that gas source pipe can be utilized to carry.Wherein, diaphragm 7, air cavity lid 8, intermediate bar 9, plunger 13, pump head assembly are respectively provided with two, and are separately positioned on the both sides of airflow-reversing valve 6.
Described airflow-reversing valve rod 14 is arranged in the middle of airflow-reversing valve 6, and the two ends of airflow-reversing valve rod 14 have been screwed a diaphragm 7 respectively; Two air cavity lids 8 are arranged on the both sides of airflow-reversing valve 6 respectively, and diaphragm 7 outer shroud at airflow-reversing valve rod 14 two ends, be fixed between corresponding air cavity lid 8 respectively by screw.The effective diameter of diaphragm 7 is equal with the effective diameter of air cavity, and its area is not less than 130:1 with the ratio of the sectional area of plunger 13; The effective diameter of diaphragm 7 and admission pressure size determine plunger 13 thrust, by changing the diameter of diaphragm 7 and air cavity or regulating admission pressure to reach change plunger force, thus change the output pressure of pump.One end of two intermediate bars 9 is fixedly connected with corresponding diaphragm 7 respectively by screw, and the other end is separately installed with a plunger 13.Two plungers 13 lay respectively in the plunger seal 3 in two pump head bodies 1.
Often overlap pump head assembly and comprise pump head body 1, feed liquor check valve 11, discharge opeing check valve 2, plunger seal 3, connected body 10, feed liquor header, discharge opeing header, three way cock, air relief valve and moisture trap assembly 15, lubricating grease charging machine 5.
Often the connected body 10 overlapped in pump head assembly is used for installing pump head body 1, one end of connected body 10 is arranged on the outside of corresponding air cavity lid 8 respectively, two pump head bodies 1 are individually fixed on the other end of connected body 10 in respective pump head assembly, and slidingly contact between connected body 10 and corresponding intermediate bar 9.
Two plunger seal 3 are separately positioned in the pump head body 1 of respective pump head assembly, and two plungers 13 are arranged in plunger seal 3 respectively, and plunger seal 3 is for carrying out reciprocation sealing to plunger 13.
Two air relief valve and moisture trap assembly 15 are positioned in air inlet pipe, its import is connected with gas source pipe respectively, outlet is connected with airflow-reversing valve 6 respectively by steel pipe, the pressure be applicable to can will be turned down as the gas pressure of power source from high pressure, the flow of stepless change pump, separates the hydrolysate in gas simultaneously.Air relief valve and moisture trap assembly 15 comprise air relief valve, moisture trap, and moisture trap is also connected with fluid reservoir, for storing the isolated liquid of moisture trap.
Often overlap and be interconnected feed liquor check valve 11, discharge opeing check valve 2 in pump head assembly, be separately positioned on below and the top of corresponding pump head body 1; And two feed liquor check valves, 11, two discharge opeing check valves 2 are connected to feed liquor header, discharge opeing header.Utilize three way cock's two connectors to connect two feed liquor headers respectively, the 3rd connector of this three way cock is inlet; Utilize three way cock's two connectors to connect two discharge opeing headers respectively, the 3rd connector of this three way cock is leakage fluid dram.
Often overlap in pump head assembly and also comprise two lubricating grease charging machines 5, four lubricating grease charging machines 5 in the pneumatic infusion pump of double acting, be arranged in two plunger seal 3 respectively, top that two place's intermediate bars 9 and connected body 10 slidingly contact position.
During work, when source of the gas enters air relief valve and gas-liquid separator assembly 15, by regulating air relief valve, driving air pressure can be adjusted to suitable pressure, the hydrolysate in gas then can be separated by moisture trap, enters in fluid reservoir; Driving gas through decompression enters left air cavity through airflow-reversing valve 6, promotes left diaphragm 7 under the influence of air pressure to left movement, drives airflow-reversing valve rod 14 and right diaphragm 7 to left movement simultaneously; When airflow-reversing valve rod 14 arrives left side terminal, the right airways open of airflow-reversing valve 6, source of the gas enters right air cavity immediately, promotes right diaphragm 7, airflow-reversing valve rod 14 and left diaphragm 7 and moves right; So repeatedly, two diaphragms 7 can be driven to carry out two way alternate campaign, by the drive of two intermediate bars 9, the reciprocating motion of two plungers 13 can be completed, under the effect of feed liquor check valve 11, discharge opeing check valve 2, reach the object of continus convergence liquid medium.
Finally, it should be noted that above what enumerate is only specific embodiments of the invention.Obviously, the invention is not restricted to above embodiment, a lot of distortion can also be had.All distortion that those of ordinary skill in the art can directly derive or associate from content disclosed by the invention, all should think protection scope of the present invention.
Claims (4)
1. a double acting pneumatic micro infusion pump, the power gas source conveying liquid that gas source pipe can be utilized to carry, it is characterized in that, described double acting pneumatic micro infusion pump comprises airflow-reversing valve, airflow-reversing valve rod, diaphragm, air cavity lid, intermediate bar, plunger and pump head assembly; Wherein, diaphragm, air cavity lid, intermediate bar, plunger, pump head assembly are respectively provided with two, and are separately positioned on the both sides of airflow-reversing valve;
Described airflow-reversing valve rod is arranged in the middle of airflow-reversing valve, and the two ends of airflow-reversing valve rod are fixed with a diaphragm respectively; Two air cavity lids are arranged on the both sides of airflow-reversing valve respectively, and the diaphragm outer shroud at airflow-reversing valve rod two ends, be separately fixed between corresponding air cavity lid; One end of two intermediate bars is fixedly connected with corresponding diaphragm respectively, and the other end is separately installed with a plunger; Two plungers are arranged in corresponding pump head assembly respectively;
Often overlap pump head assembly and comprise pump head body, feed liquor check valve, discharge opeing check valve, plunger seal, connected body, feed liquor header, discharge opeing header, three way cock, air relief valve and moisture trap assembly;
Connected body often in cover pump head assembly is for installing pump head body, one end of connected body is arranged on the outside of corresponding air cavity lid respectively, two pump head bodies are individually fixed on the other end of connected body in respective pump head assembly, and slidingly contact between connected body and corresponding intermediate bar; Described plunger seal is separately positioned in the pump head body of respective pump head assembly, and two plungers are being installed in corresponding plunger seal respectively, and plunger seal is used for coupled columns and fills in row reciprocation sealing; The import of two air relief valve and moisture trap assembly is connected with gas source pipe respectively, exports and is connected with airflow-reversing valve respectively by steel pipe, and air relief valve and moisture trap assembly are for regulating the pressure of power gas source, and the hydrolysate in detachment dynamic source of the gas;
Often overlap the feed liquor check valve, the discharge opeing check valve that are interconnected in pump head assembly, be separately positioned on below and the top of corresponding pump head body; And two feed liquor check valves are connected with feed liquor header respectively, two discharge opeing check valves are connected with discharge opeing header respectively; Utilize three way cock's two connectors to connect two feed liquor headers respectively, the 3rd connector of this three way cock is inlet; Utilize three way cock's two connectors to connect two discharge opeing headers respectively, the 3rd connector of this three way cock is leakage fluid dram.
2. double acting pneumatic micro infusion pump according to claim 1, is characterized in that, described air relief valve and moisture trap assembly comprise air relief valve, moisture trap, and moisture trap is also connected with fluid reservoir, for storing the isolated liquid of moisture trap.
3. double acting pneumatic micro infusion pump according to claim 1, it is characterized in that, described often overlapping in pump head assembly also comprises two lubricating grease charging machines, four lubricating grease charging machines in the pneumatic infusion pump of double acting, are arranged in two plunger seal, top that two place's intermediate bars and connected body slidingly contact position respectively.
4. double acting pneumatic micro infusion pump according to claim 1, is characterized in that, the area of described diaphragm is not less than 130:1 with the ratio of the sectional area of plunger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510305383.8A CN104922757B (en) | 2015-05-20 | 2015-06-05 | A kind of double acting pneumatic micro infusion pump |
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| CN2015102598349 | 2015-05-20 | ||
| CN201510259834 | 2015-05-20 | ||
| CN201510305383.8A CN104922757B (en) | 2015-05-20 | 2015-06-05 | A kind of double acting pneumatic micro infusion pump |
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| CN104922757A true CN104922757A (en) | 2015-09-23 |
| CN104922757B CN104922757B (en) | 2017-12-08 |
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| CN201510305383.8A Active CN104922757B (en) | 2015-05-20 | 2015-06-05 | A kind of double acting pneumatic micro infusion pump |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106884780A (en) * | 2015-12-16 | 2017-06-23 | 德帕姆(杭州)泵业科技有限公司 | A kind of plunger membrance formula measuring pump |
| CN108757429A (en) * | 2018-07-09 | 2018-11-06 | 北京中岩大地科技股份有限公司 | A kind of liquid plunger locellus pump head |
| CN110440137A (en) * | 2019-08-09 | 2019-11-12 | 江苏丞宇米特医疗科技有限公司 | Gas source dynamical system and its cart |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3838941A (en) * | 1973-05-29 | 1974-10-01 | V Roschupkin | Pumping unit |
| EP1235025A1 (en) * | 2001-02-17 | 2002-08-28 | Lindauer Dornier Gesellschaft M.B.H | Apparatus for metering lubricant |
| CN2538983Y (en) * | 2002-04-05 | 2003-03-05 | 江苏双达泵阀制造有限公司 | Vertical self priming pump |
| CN2558394Y (en) * | 2002-07-10 | 2003-07-02 | 南方医院 | Pneuamtic mechanical respiratory and pressure transfusion integrated device |
| CN201055560Y (en) * | 2006-09-20 | 2008-05-07 | 蒋小明 | Constant force pneumatic extrusion transfusion device |
| CN101936282A (en) * | 2010-09-30 | 2011-01-05 | 潘万桑 | Pneumatic type two diaphragm pump |
| CN102878065A (en) * | 2012-10-26 | 2013-01-16 | 上海边锋泵业制造有限公司 | Pneumatic diaphragm pump with built-in electromagnetic valve |
| CN202690386U (en) * | 2012-07-23 | 2013-01-23 | 上海绩优机电设备有限公司 | Diaphragm pump |
| CN203861700U (en) * | 2014-05-14 | 2014-10-08 | 苏州大学张家港工业技术研究院 | Pneumatic magnetic energy storage type needleless injector |
-
2015
- 2015-06-05 CN CN201510305383.8A patent/CN104922757B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3838941A (en) * | 1973-05-29 | 1974-10-01 | V Roschupkin | Pumping unit |
| EP1235025A1 (en) * | 2001-02-17 | 2002-08-28 | Lindauer Dornier Gesellschaft M.B.H | Apparatus for metering lubricant |
| CN2538983Y (en) * | 2002-04-05 | 2003-03-05 | 江苏双达泵阀制造有限公司 | Vertical self priming pump |
| CN2558394Y (en) * | 2002-07-10 | 2003-07-02 | 南方医院 | Pneuamtic mechanical respiratory and pressure transfusion integrated device |
| CN201055560Y (en) * | 2006-09-20 | 2008-05-07 | 蒋小明 | Constant force pneumatic extrusion transfusion device |
| CN101936282A (en) * | 2010-09-30 | 2011-01-05 | 潘万桑 | Pneumatic type two diaphragm pump |
| CN202690386U (en) * | 2012-07-23 | 2013-01-23 | 上海绩优机电设备有限公司 | Diaphragm pump |
| CN102878065A (en) * | 2012-10-26 | 2013-01-16 | 上海边锋泵业制造有限公司 | Pneumatic diaphragm pump with built-in electromagnetic valve |
| CN203861700U (en) * | 2014-05-14 | 2014-10-08 | 苏州大学张家港工业技术研究院 | Pneumatic magnetic energy storage type needleless injector |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106884780A (en) * | 2015-12-16 | 2017-06-23 | 德帕姆(杭州)泵业科技有限公司 | A kind of plunger membrance formula measuring pump |
| CN108757429A (en) * | 2018-07-09 | 2018-11-06 | 北京中岩大地科技股份有限公司 | A kind of liquid plunger locellus pump head |
| CN110440137A (en) * | 2019-08-09 | 2019-11-12 | 江苏丞宇米特医疗科技有限公司 | Gas source dynamical system and its cart |
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| Publication number | Publication date |
|---|---|
| CN104922757B (en) | 2017-12-08 |
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Effective date of registration: 20230322 Address after: 311,401 No. 9, No.7 Road, Dongzhou Industrial Functional Zone, Dongzhou Street, Fuyang District, Hangzhou, Zhejiang Patentee after: DACHAO PUMP INDUSTRY MFG Co.,Ltd. Address before: 310017, Zhejiang, Hangzhou province Jianggan District Peng town five fort village seven sets Patentee before: HANGZHOU DACHAO PETROCHEMICAL EQUIPMENT Co.,Ltd. |
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