CN2615375Y - Micro-pressure pump - Google Patents
Micro-pressure pump Download PDFInfo
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- CN2615375Y CN2615375Y CN 03225455 CN03225455U CN2615375Y CN 2615375 Y CN2615375 Y CN 2615375Y CN 03225455 CN03225455 CN 03225455 CN 03225455 U CN03225455 U CN 03225455U CN 2615375 Y CN2615375 Y CN 2615375Y
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- valve
- way valve
- anger
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- compression
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Abstract
The utility model relates to a mini pneumatic pump, comprising a motor assembly, a compression assembly and an air in-and-out assembly, wherein the air in-and-out assembly comprises an air tap and a piston body briquette, the compression assembly comprises a piston body with a plurality of compression cavities, a hold fast body and a compression tablet, the piston body briquette is provided with a plurality of air outlet openings forming a plurality of air outlet circuits between the air tap and the compression cavities, and the piston body briquette is provided with a plurality of air intake openings forming a plurality of air intake circuits between the air tap and the compression cavities. A one-way valve is provided between the piston body briquette and the air tap, the valve is respectively provided with an air inlet one-way valve and an air outlet one-way valve correspondent with the air inlet circuit and the air outlet circuit to prevent backing-up of gas at in-and-out time. The intermediate section of the valve is provided with a one-way valve for further preventing backing-up of gas. The air tap and a socket are tightly locked joint via a clasp location and a fastening holding pawl. The mini pneumatic pump employs the dual one-way valves, capable of effectively preventing backing-up of gas. The integral assembly employs locking joint securing, simplifying manufacturing technology and lowering fabrication cost. The actuating structure employs a cross motion proof and mute actuating structure and effectively reduces noise.
Description
[technical field]
The present invention relates to a kind of pneumatic pump, specifically a kind of minisize air lift pump especially relates to a kind of minisize air lift pump that is used on the electronic sphygmomanometer that is well suited for.
[background technique]
Gas flow guiding mode, the structure of minisize air lift pump commonly used are perfect inadequately, and operation is stable, smooth and easy inadequately inadequately in the actual using process.
Patent Office of the People's Republic of China's October calendar year 2001, the denomination of invention of notice of authorization on the 24th was that " micropump gas flow guiding mechanism ", the patent No. are the utility model patent of ZL00225848.This mechanism mainly comprises motor sub-assembly, press part and gas collection portion.Wherein, the continuous motion stem of press part inserts the eccentric opening of revolution portion, and does circumference by the moving continuous motion stem of motor rotating eccentricity pore area and rotate, and makes press part send gas because of the continuous motion stem compression bladder to gas collection portion, and is sprayed by the gas delivery outlet of gas collection portion.This mechanism makes it compare with other micropump owing to adopted two or more air bags and corresponding position, and structure is diversification more, and pumping configuration is relatively stable during gas compression, and gas flow guiding and air-out are smooth and easy relatively.
Though this micropump has overcome the some shortcomings of micropump commonly used, perfect inadequately, still also have following deficiency: 1, the installation of one-way valve is extremely inconvenient, and needs ultrasonic welding in assembly process, and these all can make its cost increase.2, driving mechanism is too loaded down with trivial details, and loaded down with trivial details driving mechanism can be produced to go here and there up and down and move, and influences the life-span of micropump, and with big noise.The most important thing is that 3, there is gas refluence phenomenon in this micropump when work, influence the measuring accuracy of blood pressure.4, whole assembling uses screw to fix, and makes that production technology is loaded down with trivial details, cost of production improves.
It is that 2003-56465 (P2003-56465A), name are called the application for a patent for invention of " membrane pump " that the Japan special permission Room disclosed a kind of publication number on February 26th, 2003.This patent application and the patent No. are that the Chinese utility model patent difference of ZL00225848 mainly is to have adopted three-dimensional one-way valve, and the practical problem that three-dimensional one-way valve exists is a poor air-tightness, and the assembling difficulty is difficult on the technology guarantee.In addition, Japanese patent application exists the cost problem of ultrasonic welding and the too loaded down with trivial details noise problem that produces of driving mechanism and whole assembling to use screw to fix equally, makes that production technology is loaded down with trivial details, cost of production improves.
[summary of the invention]
The object of the present invention is to provide that a kind of fabricating cost is low, tightness good, can the dual gas refluence phenomenon that prevents, guarantee the minisize air lift pump of measuring accuracy.
Further, of the present invention time a purpose is to provide a kind of whole assembling to use the button bit mounting structure, is used to the minisize air lift pump of simplifying whole assembling production technology, reducing production costs.
Further, another purpose of the present invention is to provide a kind of minisize air lift pump that can realize quiet transmission.
Realize the technological scheme of above-mentioned purpose: a kind of minisize air lift pump, by motor sub-assembly, compression assembly, form with the turnover pneumatic module, wherein, the turnover pneumatic module comprises the piston body briquetting, the valve of check valve sheet and band nozzle, motor sub-assembly has an eccentric body, compression assembly comprises the piston body with a plurality of compression chambers, stake body and compressed tablet, the piston body briquetting is provided with a plurality of air outlet holes and makes many gas circuits of giving vent to anger between valve and compression chamber, be provided with between piston body briquetting and the valve and have certain flexible check valve sheet, be provided with many on the check valve sheet to the breather check valve of only opening when the air inlet and first road of only when giving vent to anger, the opening one-way valve of giving vent to anger, corresponding nozzle place, check valve sheet middle part is provided with the one-way valve blade, valve central nozzle hole portion is provided with guiding gutter, constitute by one-way valve blade and guiding gutter and can further prevent second road that gas the flows backwards one-way valve of giving vent to anger, the piston body briquetting is provided with a plurality of and the corresponding inlet hole of breather check valve and a plurality of and first road corresponding air outlet hole of one-way valve of giving vent to anger, make the breather check valve of inlet hole on check valve sheet on the valve, form many air inlet gas circuits, the air outlet hole that compression chamber is offered between inlet hole on the piston body briquetting and compression chamber on the piston body briquetting, first road of offering on the check valve sheet one-way valve of giving vent to anger, give vent to anger and form many gas circuits of giving vent to anger between the nozzle on one-way valve and the valve in second road.
The one-way valve blade at described check valve sheet middle part is a leaf lobe formula structure, and it generally is a closed condition.
Described valve is provided with the button bit that whole assembling is used, the buckle that base is provided with whole assembling use colludes, by the buckle that is provided with on the base collude with valve on the mutual screens of button bit that is provided with, motor sub-assembly, compression assembly and turnover pneumatic module closely are pressed into snapping are fixed together.
The back of described breather check valve and outgassing nonreturn valve is equipped with and guarantees that it is the elastic body of normally off under normal conditions.
Described first road one-way valve of giving vent to anger is given vent to anger with second road and is communicated by guiding gutter between the one-way valve.
Described compressed tablet and eccentric body are plastic materials, and the plastics compressed tablet inserts formation silence compression driving mechanism in the inclination eccentric opening of offering plastics eccentric body upper-end surface by the quiet rotatingshaft at back.
Described quiet rotatingshaft is the glue post that shapes with center portion, plastics compressed tablet back integral body.
Described stake body is provided with spacing sphere post, and it is recessed that described compressed tablet front is provided with the spacing sphere that matches with it, spacing sphere post insert spacing sphere recessed in and form the limit structure of driving mechanism.
In the described eccentric opening (312) and the positive spacing sphere of compressed tablet (230) scribble lubricant oil in recessed, be provided with oil groove 234 in the spacing sphere recessed 233.
During work, compression chamber can be pulled on or pushed when compressed tablet is done the circumference oscillating motion.When leaving behind, produce a negative pressure in the compression chamber, the breather check valve on the check valve sheet is inhaled opened, arrive the outgassing nonreturn valve adhesive tightr simultaneously.Gas enters compression chamber along being inhaled the breather check valve of opening by negative pressure by the inlet hole on the piston body briquetting.After gas was inhaled into, the same because motion of compressed tablet upwards pushed away another compression chamber, was extruded in this compression chamber and produced a malleation.This malleation arrives the unidirectional adhesive of normally closed air inlet of check valve sheet more airtight, simultaneously outgassing nonreturn valve is pushed open, and gas outputs to valve by this another compression chamber by air outlet hole, finishes the process of air pressure output.After air pressure is released from compression chamber, enter valve again before, blow the corresponding flap of the one-way valve that is located at the check valve sheet middle part open, gas is sent by nozzle.
Adopt technique scheme, beneficial technical effects of the present invention is; 1, between piston body briquetting and valve, set up a check valve sheet, give vent to anger the one-way valve except being provided with the breather check valve and first road on this valve block, also be provided with and prevent further that gas ejection back from forming second road that the flows backwards one-way valve of giving vent to anger in the middle part of check valve sheet corresponding nozzle.Because valve block is provided with the dual one-way valve, this pneumatic pump is the generation of control gaseous refluence effectively, improves the measuring accuracy of sphygmomanometer.2, check valve sheet is the elastic one-way valve block, and the tightness between valve, check valve sheet and the piston body briquetting is good.3, whole assembling uses button bit and buckle to collude installation, has overcome the shortcoming that existing minisize air lift pump needs ultrasonic welding, simplifies production technology, has reduced cost of production.Installation is simple, cost is low.4, compressed tablet and eccentric body adopt plastic materials, and the plastics compressed tablet inserts formation silence compression driving mechanism in the inclination eccentric opening of offering plastics eccentric body upper-end surface by the quiet rotatingshaft of glue column, and friction is little during motion, noise is low.5, each air inlet, outgassing nonreturn valve back are equipped with and guarantee the normally closed elastic body of each one-way valve, are equipped with seal ring on valve block and the piston body, and these improvement make pneumatic pump have good seal.6, the recessed cooperation of spacing sphere post on the support and the spacing sphere on the compressed tablet forms limit structure, and the string up and down that can effectively improve driving mechanism is moving.7, because piston body comprises two or more compression chambers, a compression chamber necessarily has another compression chamber doing air pressure output in the air pressure suction process.The iterative motion of this a plurality of compression chambers is effectively controlled the discontinuity problem that air pressure is exported, and has guaranteed that air pressure output continuously, steadily.
Below in conjunction with accompanying drawing minisize air lift pump of the present invention is described in further detail.
[description of drawings]
Fig. 1 is the three-dimensional exploded view of minisize air lift pump of the present invention.
Fig. 2 is the sectional arrangement drawing of minisize air lift pump of the present invention.
Fig. 3 is the sectional arrangement drawing of the motor sub-assembly of minisize air lift pump of the present invention.
Fig. 4 is the sectional view of the compression assembly of minisize air lift pump of the present invention.
Fig. 5 is the sectional view of minisize air lift pump of the present invention.
Fig. 6 a is the front view of minisize air lift pump check valve sheet of the present invention.
Fig. 6 b is the rear view of minisize air lift pump check valve sheet of the present invention.
Fig. 6 c is the profile zoomed-in view of minisize air lift pump leaf lobe formula one-way valve blade of the present invention.
Fig. 6 d is the profile oblique drawing of minisize air lift pump check valve sheet of the present invention.
Fig. 6 e is the profile zoomed-in view of minisize air lift pump one-way valve elastic body of the present invention.
Wherein, as follows to each assembly label declaration:
| 100: the turnover pneumatic module | 120: valve |
| 121: nozzle | 122: inlet hole |
| 123: button bit | 124: guiding gutter |
| 130: check valve sheet | 131: breather check valve |
| 132: outgassing nonreturn valve | 133: locating slot |
| 134: blade check valve | 135: seal ring |
| 136: the one-way valve elastic structure | 140: the piston body briquetting |
| 141: locating slot | 142: inlet hole |
| 143: air outlet hole | 200: compression assembly |
| 210: piston body | 211: compression chamber |
| 212: seal ring | 213: buckle is installed |
| 214: locating slot | 220: stake body |
| 221: the piston cavity mounting hole | 222: locating slot |
| 223: spacing sphere post | 230: compressed tablet |
| 231: piston body buckle mounting hole | 232: quiet transmission shaft |
| 233: spacing sphere is recessed | 300: motor sub-assembly |
| 310: eccentric body | 312: eccentric opening |
| 320: base | 321: buckle colludes |
| 330: motor | 331: positioning hole |
| 332: motor revolving shaft | 333: screw hole |
| 334: wiring terminal | 340: the motor retaining screw |
| 341: compression spring | 234: oil groove |
[embodiment]
See figures.1.and.2, minisize air lift pump of the present invention is made up of turnover pneumatic module 100, compression assembly 200 and motor sub-assembly 300.
Please be simultaneously with reference to Fig. 3, motor sub-assembly 300 comprises motor 330, base 320, motor retaining screw 340, compression spring 341 and plastics eccentric body 310.Location hole 31 is arranged on the motor 330, power wiring seat 334 is arranged at motor 330 bottoms, base 320 is provided with the buckle that whole assembling uses and colludes 321, and base 320 is added with the motor retaining screw 340 of compression spring 341 by two and cooperates with screw hole 333 on the motor 330 and be fixed on the motor 330.Eccentric body 310 directly is inserted on the motor revolving shaft 332.Eccentric body 310 upper-end surfaces are provided with an eccentric opening 312 that tilts.
Please be simultaneously with reference to Fig. 4, compression assembly 200 comprises piston body 210, stake body 220 and plastics compressed tablet 230.Piston body 210 can be multiple shape such as square, circular, rectangular and can change size according to the environment needs.Piston body 210 comprises two or more compression chambers 211.Locating slot 214 is set on the piston body 210, and the compression chamber 211 of piston body 210 is packed in the stake body 220, and positioning block 222 is set on the stake body 220, and the installation buckle 213 of piston body 210 passes the piston body buckle mounting hole 231 on the compressed tablet 230.Quiet transmission shaft 232 is glue posts integrally formed with compressed tablet 230 center portions.Be provided with oil groove 234 in the spacing sphere recessed 233 of quiet transmission shaft 232, quiet transmission shaft 232 inserts in the eccentric opening 312 of motor sub-assembly 300 eccentric bodies 310 upper-end surfaces.
Please referring again to Fig. 5 and Fig. 6 a～Fig. 6 e, turnover pneumatic module 100 comprises sealed screw 110, compression spring 111, valve 120, check valve sheet 130 and piston body briquetting 140.Piston body briquetting 140 is equipped with an inlet hole 142 and an air outlet hole 143 at each piston cavity 211 place of relative piston body 210.Valve 120 is provided with inlet hole 122 and nozzle 121, and valve 120 is provided with the button bit 123 that whole assembling is used.Be equipped with unidirectional 130 on the piston body briquetting 140.Check valve sheet 130 is provided with independently breather check valve 131 and first road one-way valve 132 of giving vent to anger respectively at the inlet hole 142 that is positioned at piston body briquetting 140 and air outlet hole 143 places, they constitute compression air chamber by the compression chamber 211 of a pair of inlet hole 142 and air outlet hole 143 and piston body 210.Each is equipped with air inlet, outgassing nonreturn valve (131,132) back and guarantees the normally closed elastic body 136 of each one-way valve.On the gas circuit of giving vent to anger, the guiding gutter 124 of valve 120 center hole portions is formed the second road one-way valve with the leaf lobe formula one-way valve blade of check valve sheet 130 central parts 134, can control the phenomenon that pressurized gas flows backwards effectively.Seal ring 135 and the seal ring 212 on the piston body 210 on the compression check valve sheet 130 make described compression air chamber airtight.Inlet hole 142 and the compression chamber 211 of inlet hole 122 on the valve 120 on the breather check valve on the check valve sheet 130 131, piston body briquetting 140 forms many air inlet gas circuits, makes first road of offering on the air outlet hole 143 of compression chamber 211 through offering on the piston body briquetting 140, the check valve sheet 130 one-way valve 132, second road many gas circuits of giving vent to anger of formation between the nozzle 121 on one-way valve and the valve 120 of giving vent to anger of giving vent to anger.
Buckle on the base 320 colludes 321 and through locating slots 214, locating slot 141, locating slot 133 motor sub-assembly 300, compression assembly 200 and turnover pneumatic module 100 closely is pressed into and connects and fixes together mutually with button bit 123.
Concrete working principle is as follows:
After the motor 330 of motor sub-assembly 300 powered up, motor revolving shaft 332 began to rotate, and the eccentric body 310 that connects with motor revolving shaft 332 rotates with motor 330.Plastics eccentric body 310 upper-end surfaces are provided with an eccentric opening 312, and it is connected with the quiet transmission shaft 232 oblique angle fits of compressed tablet 230 central parts of compression assembly 200.So when plastics eccentric body 310 rotates with motor 330, plastics eccentric body 310 will drive plastics compressed tablet 230 and do the circumference oscillating motion.Because the installation buckle 213 of piston body 210 firmly snaps in the piston body buckle mounting hole 231 on the compressed tablet 230, compressed tablet 230 can drive the compression chamber 211 of piston body 210 and do compression movement when doing the circumference oscillating motion.
The one-way valve back is provided with elastic structure 136, so all inlet, outlet one-way valves 131,132 all are normally closed under normal conditions.Breather check valve 131 just can be inhaled and be held when being subjected to negative pressure; When being subjected to malleation, first road one-way valve 132 of giving vent to anger just can be inhaled and be held.
After gas is inhaled into, it is same because plastics compressed tablet 230 is done the circumference oscillating motion, compression chamber is upwards pushed away, be extruded in the compression chamber 211 and produce a malleation, arrive unidirectional 131 adhesives of normally closed air inlet on turnover pneumatic module 100 check valve sheet 130 more airtight, simultaneously because malleation, the first normally closed road on the check valve sheet 130 one-way valve 132 of giving vent to anger is pushed open, gas is outputed in the guiding gutter 124 of valve 120 by air outlet hole 143 by compression chamber 211, finishes the process of compression chamber 211 air pressure output.
For phenomenon does not take place back to leak the air pressure that guarantees to export, the present invention has designed the dual one-way valve, and promptly one heavily is breather check valve 131 and first road one-way valve 132 of giving vent to anger, and another is heavy to be the one-way valve blade 134 of check valve sheet 130 centers.Air pressure is released from compression chamber 211, enter the guiding gutter 124 of valve 120 again after, blow the flap of one-way valve blade 134 and guiding gutter 124 corresponding sections open, gas can be sent by nozzle 121.When blowing the single flap at these guiding gutter 124 places open, the malleation that blows out can be with the flap sealing at other guiding gutter 124 places.
The principle of one-way valve blade 134 is, unidirectional valve disc sheet 134 is formed normally closed one-way valve with valve 120 under the normality, because one-way valve blade 134 is a leaf lobe formula, promptly when a compression chamber 211 air pressure are exported, single leaf lobe can be blown open, and the malleation of output is compressed to other normally closed leaf lobe tightr simultaneously.Just constitute the second road one-way valve thus, effectively prevented gas refluence phenomenon.
In whole process, because the quiet transmission shaft 232 at compressed tablet 230 centers on the compression assembly 200 is plastic material with the eccentric opening 312 of eccentric body 310 upper-end surfaces, in eccentric opening 312, scribble lubricant oil again, it is minimum that friction factor is dropped to, and can effectively reduce the noise problem of being sent by driving mechanism.The compressed tablet 230 of compression assembly and stake body 220 central parts are provided with spacing sphere post 223 and the spacing sphere recessed 233 that cooperatively interacts, and recessed 233 places of the spacing sphere on compressed tablet 230 scribble lubricant oil, friction factor drops to minimum therebetween, it is moving to reduce the string of compressed tablet 230 in compression process, also can effectively reduce the noise that sends by driving mechanism and ask, improve product working life.
As required, the button bit 123 that whole assembling is used also can be set on base 320, the buckle that whole assembling use is set on valve 120 colludes 321, at this moment, equally colluding 321 by the buckle on the valve 120 closely is pressed into snapping with button bit 123 on base 320 with motor sub-assembly 300, compression assembly 200 and turnover pneumatic module 100 and is fixed together.
As required, it is recessed that the spacing sphere post of stake body 220 central part settings also can change spacing sphere into, and the recessed correspondence of spacing sphere on the compressed tablet 230 is set to spacing sphere post, and both match and constitute the limit structure of driving mechanism.
Because piston body 210 comprises two or more compression chambers 211, so a compression chamber 211 necessarily has another compression chamber 211 doing air pressure output in the air pressure suction process.The iterative motion of this a plurality of compression chamber 211 is effectively controlled the discontinuity problem that air pressure is exported, and has guaranteed that air pressure output continuously, steadily.
The present invention is particularly suitable for as the minisize air lift pump on the electronic sphygmomanometer.
Claims (10)
1. minisize air lift pump, comprise motor sub-assembly (300), compression assembly (200) and turnover pneumatic module (100), wherein, turnover pneumatic module (100) comprises the valve (120) and the piston body briquetting (140) of band nozzle (121), motor sub-assembly (300) has an eccentric body (310), compression assembly (200) comprises the piston body (210) with a plurality of compression chambers (211), stake body (220) and compressed tablet (230), piston body briquetting (140) is provided with a plurality of air outlet holes (143) and makes many gas circuits of giving vent to anger between valve (120) and compression chamber (211), it is characterized in that: setting has certain flexible check valve sheet (130) between described piston body briquetting (140) and the valve (120), be provided with many on the check valve sheet (130) to the breather check valve (131) only opened when the air inlet and first road of when giving vent to anger, the opening one-way valve (132) of giving vent to anger, check valve sheet (130) middle part corresponding nozzle (121) locates to be provided with (134), valve (120) central nozzle (121) hole portion is provided with guiding gutter (124), constitute by leaf lobe formula one-way valve blade (134) and guiding gutter (124) and can further prevent second road that gas the flows backwards one-way valve of giving vent to anger, first road one-way valve (132) of giving vent to anger is given vent to anger with second road and is communicated between the one-way valve, piston body briquetting (140) is provided with a plurality of and the corresponding inlet hole of breather check valve (131) (142) and a plurality of and first road corresponding air outlet hole of one-way valve (132) (143) of giving vent to anger, make the breather check valve (131) of inlet hole (122) on check valve sheet (130) on the valve (120), form many air inlet gas circuits, the air outlet hole (143) that compression chamber (211) is offered between inlet hole (142) on the piston body briquetting (140) and compression chamber (211) on piston body briquetting (140), first road of offering on the check valve sheet (130) one-way valve (132) of giving vent to anger, give vent to anger and form many gas circuits of giving vent to anger between the nozzle (121) on one-way valve and the valve (120) in second road.
2. minisize air lift pump as claimed in claim 1 is characterized in that: the one-way valve (130) at check valve sheet (130) middle part is a leaf structure, and it generally is a closed condition.
3. minisize air lift pump as claimed in claim 1, it is characterized in that: described valve (120) is provided with the button bit (123) that whole assembling is used, the buckle that base (320) is provided with whole assembling use colludes (321), go up the buckle that is provided with by base (320) and collude button bit (123) screens mutually that is provided with on (321) and the valve, motor sub-assembly (300), compression assembly (200) and turnover pneumatic module (100) closely are pressed into snapping are fixed together.
4. as the described minisize air lift pump of claim 1～3, it is characterized in that: the back of described breather check valve (131) and outgassing nonreturn valve (132) is equipped with and guarantees that it is the elastic body of normally off (136) under normal conditions.
5. as the described minisize air lift pump of claim 1～3, it is characterized in that: described first road one-way valve (132) of giving vent to anger is given vent to anger with second road and is communicated by guiding gutter (124) between the one-way valve.
6. as the described minisize air lift pump of claim 1～3, it is characterized in that: described compressed tablet (230) and eccentric body (310) are plastic materials, and plastics compressed tablet (230) inserts formation silence compression driving mechanism in the inclination eccentric opening of offering plastics eccentric bodies (310) upper-end surface (312) by the quiet rotatingshaft at back.
7. minisize air lift pump as claimed in claim 6 is characterized in that: described quiet rotatingshaft is the glue post that shapes with plastics compressed tablet (230) center portion, back integral body.
8. as the described minisize air lift pump of claim 1～3, it is characterized in that: described stake body (220) is provided with spacing sphere post (223), described compressed tablet (230) front is provided with spacing sphere recessed (233), and spacing sphere post (223) inserts in the spacing sphere recessed (233) and forms the limit structure of driving mechanism.
9. minisize air lift pump as claimed in claim 6, it is characterized in that: described stake body (220) is provided with spacing sphere post (223), described compressed tablet (230) front is provided with spacing sphere recessed (233), and spacing sphere post (223) inserts in the spacing sphere recessed (233) and forms the limit structure of driving mechanism.
10. minisize air lift pump as claimed in claim 9 is characterized in that: in the described eccentric opening (312) and the positive spacing sphere of compressed tablet (230) scribble lubricant oil in recessed, spacing sphere is provided with oil groove (234) in recessed (233).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03225455 CN2615375Y (en) | 2003-04-24 | 2003-04-24 | Micro-pressure pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03225455 CN2615375Y (en) | 2003-04-24 | 2003-04-24 | Micro-pressure pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2615375Y true CN2615375Y (en) | 2004-05-12 |
Family
ID=34246005
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03225455 Expired - Lifetime CN2615375Y (en) | 2003-04-24 | 2003-04-24 | Micro-pressure pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2615375Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1323242C (en) * | 2003-04-24 | 2007-06-27 | 章年平 | Minitype pneumatic pump |
| CN102635538A (en) * | 2012-04-28 | 2012-08-15 | 胡军 | Small-sized brushless direct current self-absorption multi-cavity pump provided with outer rotor |
| CN102828937A (en) * | 2011-06-15 | 2012-12-19 | 多田塑料工业株式会社 | Diaphragm pump for fluid |
| TWI513901B (en) * | 2013-01-02 | 2015-12-21 | Taidoc Technology Corp | Pump |
| CN106382219A (en) * | 2016-10-14 | 2017-02-08 | 厦门科际精密器材有限公司 | Pump interior valve block with multi-split valve parts |
| CN109098962A (en) * | 2017-06-20 | 2018-12-28 | 应研精工株式会社 | diaphragm pump |
| CN113294320A (en) * | 2021-04-26 | 2021-08-24 | 深圳市桑泰达科技有限公司 | High leakproofness valve member, fluid pump and sphygmomanometer |
-
2003
- 2003-04-24 CN CN 03225455 patent/CN2615375Y/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1323242C (en) * | 2003-04-24 | 2007-06-27 | 章年平 | Minitype pneumatic pump |
| CN102828937A (en) * | 2011-06-15 | 2012-12-19 | 多田塑料工业株式会社 | Diaphragm pump for fluid |
| CN102828937B (en) * | 2011-06-15 | 2015-05-20 | 多田塑料工业株式会社 | Diaphragm pump for fluid |
| CN102635538A (en) * | 2012-04-28 | 2012-08-15 | 胡军 | Small-sized brushless direct current self-absorption multi-cavity pump provided with outer rotor |
| WO2013159425A1 (en) * | 2012-04-28 | 2013-10-31 | Yang Zhujun | Micro brushless direct-current self-priming external-rotor multi-chambered pump |
| TWI513901B (en) * | 2013-01-02 | 2015-12-21 | Taidoc Technology Corp | Pump |
| CN106382219A (en) * | 2016-10-14 | 2017-02-08 | 厦门科际精密器材有限公司 | Pump interior valve block with multi-split valve parts |
| CN109098962A (en) * | 2017-06-20 | 2018-12-28 | 应研精工株式会社 | diaphragm pump |
| CN109098962B (en) * | 2017-06-20 | 2019-10-25 | 应研精工株式会社 | Diaphragm pump |
| US10641262B2 (en) | 2017-06-20 | 2020-05-05 | Okenseiko Co., Ltd. | Diaphragm pump |
| CN113294320A (en) * | 2021-04-26 | 2021-08-24 | 深圳市桑泰达科技有限公司 | High leakproofness valve member, fluid pump and sphygmomanometer |
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| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20030424 |
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| C25 | Abandonment of patent right or utility model to avoid double patenting |