CN104922757B - A kind of double acting pneumatic micro infusion pump - Google Patents
A kind of double acting pneumatic micro infusion pump Download PDFInfo
- Publication number
- CN104922757B CN104922757B CN201510305383.8A CN201510305383A CN104922757B CN 104922757 B CN104922757 B CN 104922757B CN 201510305383 A CN201510305383 A CN 201510305383A CN 104922757 B CN104922757 B CN 104922757B
- Authority
- CN
- China
- Prior art keywords
- pump head
- airflow
- reversing valve
- plunger
- diaphragm
- 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.)
- Active
Links
Landscapes
- Reciprocating Pumps (AREA)
Abstract
The present invention relates to air driven pump field, it is desirable to provide a kind of double acting pneumatic micro infusion pump.This kind of double acting pneumatic micro infusion pump includes 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.The present invention is using double acting pneumatic diaphragm device as power source, so that the structure of pneumatic infusion pump is simple, good reliability is economical and practical, and easy to operate.
Description
Technical field
The present invention is on air driven pump field, more particularly to a kind of double acting pneumatic micro infusion pump.
Background technology
Existing micro-infusion pump is directly driven using motor, and it is disadvantageous in that, every pump all should configure one
Reducing gear, and driven by a motor, equipment cost and operation energy consumption are bigger.
For the energy resource consumption of pump is greatly reduced, electric power system Installed capital cost is reduced, is badly in need of one kind and adapts to existing rank
The micro-infusion pump of section demand.
The content of the invention
It is a primary object of the present invention to overcome deficiency of the prior art, there is provided one kind uses gas actuation power source, fits
For the pneumatic infusion pump for thering is the occasion of gas source condition to be used for substituting electronic infusion pump.It is in order to solve the above technical problems, of the invention
Solution be：
A kind of double acting pneumatic micro infusion pump is provided, the power gas source conveying liquid of gas source pipe conveying, institute can be utilized
State double acting pneumatic micro infusion pump include 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 air-flow and change
To the both sides of valve；
The airflow-reversing valve rod is arranged among airflow-reversing valve, and the both ends difference (using screw) of airflow-reversing valve rod
It is fixed with a diaphragm；Two air cavity lids are separately mounted to the both sides of airflow-reversing valve, and airflow-reversing valve rod both ends every
Diaphragm outer shroud, difference (passing through screw) are fixed between corresponding air cavity lid；One end difference (passing through screw) of two intermediate bars with
Corresponding diaphragm is fixedly connected, and the other end is separately installed with a plunger；It is total that two plungers are separately mounted to corresponding pump head
Cheng Zhong；
Often covering pump head assembly includes pump head body, feed liquor check valve, discharge opeing check valve, plunger seal, connected body, feed liquor remittance
Pipe, discharge opeing header, three-way connection, pressure-reducing valve and moisture trap assembly；
Often cover the connected body in pump head assembly to be used to pump head body be installed, one end of connected body is separately mounted to corresponding air cavity lid
Outside on, two pump head bodies are individually fixed in corresponding pump head assembly on the other end of connected body, and connected body with it is corresponding
There is sliding contact between intermediate bar；The plunger seal is separately positioned in the pump head body of corresponding pump head assembly, two plungers
In plunger seal corresponding to being separately mounted to, plunger seal is used to carry out reciprocation sealing to plunger；Two pressure-reducing valves and gas
The import of separator assembly is connected with gas source pipe respectively, and outlet is connected by steel pipe with airflow-reversing valve respectively, pressure-reducing valve
And moisture trap assembly is used to adjust the pressure of power gas source, and separate the hydrolysate in power gas source；
The feed liquor check valve being interconnected in pump head assembly, discharge opeing check valve are often covered, is separately positioned on corresponding pump head body
Above and below；And two feed liquor check valves are connected with feed liquor header respectively, two discharge opeing check valves connect with discharge opeing header respectively
Connect；Two feed liquor headers are connected respectively using two connectors of three-way connection, and the 3rd connector of the three-way connection is
Inlet；Two discharge opeing headers, the 3rd connector of the three-way connection are connected respectively using two connectors of three-way connection
As leakage fluid dram.
As a further improvement, pressure-reducing valve and the moisture trap assembly includes pressure-reducing valve, moisture trap, air water
Separator is also associated with fluid reservoir, the liquid isolated for storing moisture trap.
As a further improvement, described often cover in pump head assembly also includes two lubricating grease charging machines, and double acting is pneumatic
Four lubricating grease charging machines in infusion pump, it is separately mounted in two plunger seals, intermediate bar and connected body slide at two
The top of contact site.
As a further improvement, the ratio between sectional area of the area of the diaphragm and plunger is not less than 130：1 (diaphragm
Effective diameter and air cavity cap-shaped into air cavity effective diameter it is equal).
Compared with prior art, the beneficial effects of the invention are as follows：
The present invention uses double acting pneumatic diaphragm device as power source, so that the structure of pneumatic infusion pump is simple, can
It is good, economical and practical and easy to operate by property.
Brief description of the drawings
Fig. 1 is the overall structure diagram of the present invention.
Fig. 2 is the outline drawing of the present invention.
Fig. 3 is the right view of the present invention.
Reference in figure is：1 pump head body；2 discharge opeing check valves；3 plunger seals；4 discharge opeing headers and three-way connection；
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 enter
Liquid header and three-way connection；13 plungers；14 airflow-reversing valve rods；15 pressure-reducing valves and moisture trap assembly.
Embodiment
The present invention is described in further detail with embodiment below in conjunction with the accompanying drawings：
The pneumatic infusion pump of double acting as shown in Figure 1, Figure 2, Figure 3 shows include airflow-reversing valve 6, airflow-reversing valve rod 14, every
Diaphragm 7, air cavity lid 8, intermediate bar 9, plunger 13 and pump head assembly, the power gas source conveying liquid of gas source pipe conveying can be utilized.
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 airflow-reversing valve
6 both sides.
The airflow-reversing valve rod 14 is arranged among airflow-reversing valve 6, and the both ends of airflow-reversing valve rod 14 are used respectively
Screw is fixed with a diaphragm 7；Two air cavity lids 8 are separately mounted to the both sides of airflow-reversing valve 6, and airflow-reversing valve rod 14
The outer shroud of diaphragm 7 at both ends, it is fixed by screws in respectively between corresponding air cavity lid 8.The effective diameter and air cavity of diaphragm 7
Effective diameter it is equal, the ratio between sectional area of its area and plunger 13 is not less than 130：1；The effective diameter of diaphragm 7 and air inlet
Pressure size determines the thrust of plunger 13, can reach change by the diameter or regulation admission pressure for changing diaphragm 7 and air cavity
Plunger force, so as to change the output pressure of pump.One end of two intermediate bars 9 is fixed by screw with corresponding diaphragm 7 respectively
Connection, the other end are separately installed with a plunger 13.Two plungers 13 are located at the plunger seal 3 in two pump head bodies 1 respectively
In.
Often covering pump head assembly includes pump head body 1, feed liquor check valve 11, discharge opeing check valve 2, plunger seal 3, connected body
10th, feed liquor header, discharge opeing header, three-way connection, pressure-reducing valve and moisture trap assembly 15, lubricating grease charging machine 5.
Often cover the connected body 10 in pump head assembly to be used for that pump head body 1 is installed, one end of connected body 10 is separately mounted to correspondingly
On the outside of air cavity lid 8, two pump head bodies 1 are individually fixed in corresponding pump head assembly on the other end of connected body 10, and are coupled
There is sliding contact between body 10 and corresponding intermediate bar 9.
Two plunger seals 3 are separately positioned in the pump head body 1 of corresponding pump head assembly, and two plungers 13 are separately mounted to
In plunger seal 3, plunger seal 3 is used to carry out reciprocation sealing to plunger 13.
Two pressure-reducing valves and moisture trap assembly 15 are located in air inlet pipe, and its import is connected with gas source pipe respectively, is gone out
Mouth is connected by steel pipe with airflow-reversing valve 6 respectively, can be turned down as the gas pressure of power source from high pressure to suitable pressure
Power, the flow of stepless change pump, while the hydrolysate in gas is separated.Pressure-reducing valve and moisture trap assembly 15 include
Pressure-reducing valve, moisture trap, moisture trap are also associated with fluid reservoir, the liquid isolated for storing moisture trap.
Interconnection feed liquor check valve 11, the discharge opeing check valve 2 in pump head assembly are often covered, is separately positioned on corresponding pump head body
1 above and below；And two feed liquor check valves, 11, two discharge opeing check valves 2 are connected to feed liquor header, discharge opeing header.
Two feed liquor headers are connected respectively using two connectors of three-way connection, and the 3rd connector of the three-way connection is feed liquor
Mouthful；Two discharge opeing headers are connected respectively using two connectors of three-way connection, and the 3rd connector of the three-way connection is
Leakage fluid dram.
Often covering also includes two lubricating grease charging machines 5 in pump head assembly, four lubricating grease in the pneumatic infusion pump of double acting
Charging point 5, it is separately mounted in two plunger seals 3, intermediate bar 9 and the top at the sliding contact position of connected body 10 at two.
During work, when source of the gas enters pressure-reducing valve and gas-liquid separator assembly 15, by adjusting pressure-reducing valve, air pressure can will be driven
Appropriate pressure is adjusted to, the hydrolysate in gas can then be separated, is discharged into fluid reservoir by moisture trap；By the drive of decompression
Body of taking offence enters left air cavity by airflow-reversing valve 6, promotes left diaphragm 7 to be driven simultaneously to left movement under the influence of air pressure
Airflow-reversing valve rod 14 and right diaphragm 7 are to left movement；When airflow-reversing valve rod 14 reaches left side terminal, airflow-reversing valve 6
Right airways open, source of the gas enters right air cavity, promotes right diaphragm 7, airflow-reversing valve rod 14 and left diaphragm 7 to transport to the right immediately
It is dynamic；So repeatedly, two diaphragms 7 can be driven to carry out two way alternate campaign, pass through the drive of two intermediate bars 9, you can completed
The reciprocating motion of two plungers 13, in the presence of feed liquor check valve 11, discharge opeing check valve 2, reach continuous conveying liquid medium
Purpose.
Finally it should be noted that listed above is only specific embodiment of the invention.It is clear that the invention is not restricted to
Above example, there can also be many variations.One of ordinary skill in the art can directly lead from present disclosure
All deformations for going out or associating, are considered as protection scope of the present invention.
Claims (4)
1. a kind of double acting pneumatic micro infusion pump, can utilize the power gas source conveying liquid of gas source pipe conveying, its feature exists
In, the double acting pneumatic micro infusion pump include 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；
The airflow-reversing valve rod is arranged among airflow-reversing valve, and the both ends of airflow-reversing valve rod be respectively fixed with one every
Diaphragm；Two air cavity lids are separately mounted to the both sides of airflow-reversing valve, and the diaphragm outer shroud at airflow-reversing valve rod both ends, respectively
It is fixed between corresponding air cavity lid；One end of two intermediate bars is fixedly connected with corresponding diaphragm respectively, and the other end is pacified respectively
Equipped with a plunger；Two plungers are separately mounted in corresponding pump head assembly；
Often cover pump head assembly include pump head body, feed liquor check valve, discharge opeing check valve, plunger seal, connected body, feed liquor header,
Discharge opeing header, three-way connection, pressure-reducing valve and moisture trap assembly；
Often cover the connected body in pump head assembly to be used to pump head body be installed, one end of connected body is separately mounted to the outer of corresponding air cavity lid
On side, two pump head bodies are individually fixed in corresponding pump head assembly on the other end of connected body, and connected body and corresponding centre
There is sliding contact between bar；The plunger seal is separately positioned in the pump head body of corresponding pump head assembly, two plunger difference
In corresponding plunger seal, plunger seal is used to carry out reciprocation sealing to plunger；Two pressure-reducing valves and air water point
Import from device assembly is connected with gas source pipe respectively, and outlet is connected by steel pipe with airflow-reversing valve respectively, pressure-reducing valve and gas
Separator assembly is used for the pressure for adjusting power gas source, and separates the hydrolysate in power gas source；
The feed liquor check valve being interconnected in pump head assembly, discharge opeing check valve are often covered, is separately positioned on the lower section of corresponding pump head body
And top；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；Profit
Two feed liquor headers are connected respectively with two connectors of three-way connection, and the 3rd connector of the three-way connection is feed liquor
Mouthful；Two discharge opeing headers are connected respectively using two connectors of three-way connection, and the 3rd connector of the three-way connection is
Leakage fluid dram.
2. double acting pneumatic micro infusion pump according to claim 1, it is characterised in that the pressure-reducing valve and gas-water separation
Device assembly includes pressure-reducing valve, moisture trap, and moisture trap is also associated with fluid reservoir, isolated for storing moisture trap
Liquid.
3. double acting pneumatic micro infusion pump according to claim 1, it is characterised in that described often to cover in pump head assembly also
Including two lubricating grease charging machines, four lubricating grease charging machines in the pneumatic infusion pump of double acting, two plungers are separately mounted to
On seal, at two intermediate bar and connected body sliding contact position top.
4. double acting pneumatic micro infusion pump according to claim 1, it is characterised in that the area and post of the diaphragm
The ratio between sectional area of plug is not less than 130：1.
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 |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| 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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104922757A CN104922757A (en) | 2015-09-23 |
| CN104922757B true CN104922757B (en) | 2017-12-08 |
Family
ID=54110394
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510305383.8A Active CN104922757B (en) | 2015-05-20 | 2015-06-05 | A kind of double acting pneumatic micro infusion pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104922757B (en) |
Families Citing this family (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 |
| CN108757429B (en) * | 2018-07-09 | 2020-08-18 | 北京中岩大地科技股份有限公司 | Pump head with liquid plunger chamber |
| 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 |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3838941A (en) * | 1973-05-29 | 1974-10-01 | V Roschupkin | Pumping unit |
| DE10107558A1 (en) * | 2001-02-17 | 2002-09-19 | Dornier Gmbh Lindauer | Dosing device for lubricants |
| 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 |
| CN101936282B (en) * | 2010-09-30 | 2013-02-27 | 台州市昌宇气动设备有限公司 | 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 |
| CN102878065B (en) * | 2012-10-26 | 2015-06-10 | 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 |
-
2015
- 2015-06-05 CN CN201510305383.8A patent/CN104922757B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN104922757A (en) | 2015-09-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104922757B (en) | A kind of double acting pneumatic micro infusion pump | |
| CN103925200A (en) | Pneumatic diaphragm pump | |
| CN109915338A (en) | A kind of double acting reciprocating pump linkage drainage system | |
| CN204283823U (en) | Divide to adopt and separate formula oil well pump | |
| CN113530799A (en) | Tandem diaphragm pump | |
| CN106015122A (en) | High-efficiency hydraulic ram | |
| CN204163974U (en) | Plunger pump | |
| CN205805894U (en) | A kind of high pressure reciprocating plunger pump hydraulic end through type combination valve | |
| CN205896357U (en) | Water conservancy differential type butterfly water pump control valve | |
| CN204815133U (en) | Pneumatic miniature transfer pump of two effects | |
| CN105443336B (en) | Voltage-stabilizing system, the method for stabilizing voltage of supercharging device and the application device | |
| CN212204033U (en) | Underflow device of ore pulp thickener convenient for rapid flowing of ore pulp | |
| CN208474776U (en) | A kind of acidproof welded still pipe | |
| CN105673464B (en) | The double acting sucker rod pump that Rodless oil extraction is used | |
| CN208416914U (en) | High pressure liquid housing structure and Vertical Combination valve group | |
| CN105649956A (en) | Liquid pump type air compressor | |
| CN209340257U (en) | A kind of automatic reversing apparatus of reciprocating supercharging device | |
| CN207513811U (en) | A kind of hydraulic pump of adjustable pressure | |
| CN209278106U (en) | High pressure reciprocating pump Double-conical-surface integral valve | |
| CN103485994B (en) | Hydraulic air-free pump | |
| CN201635952U (en) | Non-piston hydraulic compressor | |
| CN100465441C (en) | Elastic-sealing-valve oil pump | |
| CN206071968U (en) | A kind of quick drawing liquid and the pressurizing hydraulic cylinder of transfusion | |
| CN205560109U (en) | Reverse formula gasbag attenuator | |
| CN204024993U (en) | A kind of Miniature diaphragm pump and valve member thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
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. |
|
| TR01 | Transfer of patent right |