CN104533763A - Miniature water pump with damping fin - Google Patents
Miniature water pump with damping fin Download PDFInfo
- Publication number
- CN104533763A CN104533763A CN201510017751.9A CN201510017751A CN104533763A CN 104533763 A CN104533763 A CN 104533763A CN 201510017751 A CN201510017751 A CN 201510017751A CN 104533763 A CN104533763 A CN 104533763A
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- China
- Prior art keywords
- valve seat
- mesochite
- damping fin
- pump
- connecting rod
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Abstract
The invention discloses a miniature water pump with a damping fin. The miniature water pump comprises a pump shell, a motor, a valve seat and a cover, wherein the motor is installed on side face of the pump shell; the valve seat and the cover are sequentially and fixedly connected to the upper side of the pump shell; the valve seat is provided with a water inlet channel and a water outlet channel; a connecting rod which is driven by a motor drive shaft to reciprocate is installed in the pump shell; the lower portion of a membrane is fixedly connected to the connecting rod, and the edge of the membrane is pressed between the pump shell and the valve seat; the cover comprises a middle shell and an upper cover, the middle shell is connected with the valve seat, and the upper cover is connected with the middle shell; a buffer cavity is formed in the end face, close to the upper cover, of the middle shell, and the edge of the damping fin is clamped between the edge of the buffer cavity and the upper cover; the middle shell is provided with a water inlet pipe and a water outlet pipe; an inner hole of the water inlet pipe is communicated with the water inlet channel in the valve seat and the buffer cavity by forming a first channel and a second channel in the middle shell, and an inner hole of the water outlet pipe is communicated with the water outlet channel in the valve seat. The miniature water pump has good effects of stabilizing flow and pressure and is low in running noise.
Description
Technical field
The present invention relates to micro pump, especially a kind of micro pump with damping fin.
Background technique
The micro pump of diaphragm type, provide circular movement by motor, the barrier film of water pump inside is made to do reciprocatory motion by mechanical device again, thus compression, air in stretching pump chamber, under check valve sheet effect, form malleation at drain opening place, form vacuum at pump mouth place, thus and produce pressure difference between external atmosphere pressure.Under the effect of pressure difference, hydraulic pressure is entered water intake, then discharge from drain opening.This micro pump is well used in the occasion such as small household appliances, medical apparatus.
But the micro pump of this conventional membrane formula is owing to being subject to the impact of water suction discharge stability, and current stabilization and voltage regulation result all have much room for improvement, and could meet the requirement of high precision apparatus; In addition, because the running speed of its motor is fast, enter draining switching frequency high, valve block pats noise becomes its dominant noise source, and its noise is larger.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of micro pump with damping fin, and it has better current stabilization and voltage regulation result, and it is lower to run noise.
For achieving the above object, technological scheme of the present invention is: a kind of micro pump with damping fin, comprise pump case, motor, valve seat, lid, on the side that motor is contained in pump case and motor driving shaft stretches in pump case, valve seat and lid are fixed on the upside of pump case successively, valve seat is provided with intake tunnel and exhalant canal, pump case can produce reciprocating connecting rod built with being driven by motor driving shaft, one diaphragm bottom is connected on connecting rod, the edge of diaphragm is pressed between pump case and valve seat, described lid comprises mesochite and upper cover, mesochite connecting valve seat, upper cover connects mesochite, mesochite is provided with a buffer cavity near the end face of upper cover, one damping fin edge clamping is between described buffer cavity edge and upper cover, mesochite is provided with intake pipe and outlet pipe, and described intake pipe endoporus is provided with first passage and second channel by mesochite and is communicated with intake tunnel on valve seat and described buffer cavity respectively, and the endoporus of outlet pipe is communicated with the exhalant canal on valve seat, be provided with between valve seat and mesochite into water and go out Water Check Valve sheet, go out Water Check Valve sheet during water inlet and block exhalant canal on valve seat, non-return valve block of intaking during water outlet blocks the first passage on mesochite.
Further improvement, the exhalant canal of described valve seat be provided with annular protrusion with described go out Water Check Valve sheet match; The first passage of mesochite is also provided with annular protrusion match with described water inlet non-return valve block.So just with rigid line pressure holding software, seamless seal can be played, guarantee into water non-return valve block and go out Water Check Valve sheet and also can keep excellent sealing ability at elevated pressures.
Further improvement, described water inlet and go out Water Check Valve sheet and be connected on a substrate by both sides rib simultaneously and form integral structure.Both facilitated installation, and also can make into water and go out Water Check Valve sheet with nature work.
Further improvement, a lock bolt is spun on described connecting rod through the center of described diaphragm and described diaphragm bottom is connected on connecting rod, and the top of connecting rod is also rotary with the lower end surface that a regulating ring withstands described diaphragm.Discharge pressure can be changed, with the demand of satisfied different client by the position changing regulating ring.
Further improvement, also arranges a support ring between described edge, diaphragm lower end surface and pump case.Guarantee that diaphragm works in same plane, extend the working life of diaphragm.
Further improvement, is also equipped with seal ring between described damping fin and mesochite.
Further improvement, described pump case is formed by the first housing and the second shell combination, and motor is connected in the side of the first housing.With convenient for assembly, enhance productivity.
Preferred described second channel has two, and a second channel is in the bottom in the middle of described buffer cavity, and another second channel is near described first passage.Better to improve the transport velocity of current, improve the reaction velocity of damping fin.
Preferred described connecting rod bottom be provided with perpendicular to pitman shaft to cross through hole, in described cross through hole, clutch shaft bearing is housed, the endoporus of clutch shaft bearing matches with an eccentric wheel, described motor driving shaft passes eccentric center hole and utilizes fastening screw trip bolt and eccentric wheel to be fastened, described motor driving shaft matches with the center hole of the second bearing through eccentric one end, and the second bearing dress on the second housing.There is the second bearings front end due to motor driving shaft, stressed comparatively steady, connecting rod to move up and down precision higher, meet the work requirements of large pressure.
The present invention is made up of mesochite and upper cover due to described lid, and mesochite is provided with a buffer cavity near the end face of upper cover, and a damping fin edge clamping is between described buffer cavity edge and upper cover; Mesochite is provided with intake pipe and outlet pipe, and described intake pipe endoporus is provided with first passage and second channel by mesochite and is communicated with intake tunnel on valve seat and described buffer cavity respectively, and the endoporus of outlet pipe is communicated with the exhalant canal on valve seat.Like this when intaking, the water of the damping force that damping fin provides and described buffer cavity just plays the effect sucking stabilizer, and guarantee can suck enough water yields in pump chamber, also just ensuring enough water can discharge, and reduces the impact of intake pipe flow of inlet water; During draining, the water of the damping force that damping fin provides and described buffer cavity plays pulse damped effect, reduces the noise that water inlet non-return valve block pats mesochite generation, can strengthen again the stability of discharge pressure.Therefore the present invention has better current stabilization and voltage regulation result, and it is lower to run noise; Large pressure operation can be met, can better be applied in the higher equipment of precision prescribed.
Accompanying drawing explanation
Fig. 1 is stereogram of the present invention;
Fig. 2 is three-dimensional exploded view of the present invention;
Fig. 3 is plan view of the present invention;
Fig. 4 is the A-A sectional view of Fig. 3;
Fig. 5 is the B-B sectional view of Fig. 3;
Fig. 6 is the stereo amplification figure of valve seat of the present invention;
Fig. 7 is that mesochite of the present invention overlooks enlarged view;
Fig. 8 is the C-C sectional view of Fig. 7;
Fig. 9 is that mesochite of the present invention looks up stereo amplification figure;
Figure 10 is that the present invention is intake non-return valve block and go out Water Check Valve sheet and to be connected stereo amplification figure.
Embodiment
Below in conjunction with accompanying drawing and concrete mode of execution, the present invention is described in further detail.
Shown in Fig. 1 to Figure 10, with a micro pump for damping fin, comprise pump case 1, motor 2, valve seat 3, lid 4, described pump case 1 is combined by the first housing 11 and the second housing 12, motor 2 screw is connected in the side of the first housing 11, and motor 2 live axle 21 stretches in pump case 1; Described lid 4 comprises mesochite 41 and upper cover 42, and valve seat 3, mesochite 41 and upper cover 42 are fixed on the upside of pump case 1 successively by bolt.
Valve seat 3 is provided with intake tunnel 31 and exhalant canal 32, pump case 1 drives built with the live axle 21 by motor 2 can produce reciprocating connecting rod 22, connecting rod 22 bottom is provided with the cross through hole 221 perpendicular to connecting rod 22 axis, in described cross through hole 221, clutch shaft bearing 5 is housed, the endoporus of clutch shaft bearing 5 matches with an eccentric wheel 6, described motor 2 live axle 21 passes the center hole of eccentric wheel 6 and utilizes fastening screw trip bolt 61 and eccentric wheel 6 to be fastened, described motor 2 live axle 21 matches with the center hole of the second bearing 7 through one end of eccentric wheel 6, second bearing 7 is contained on the second housing 12.
One diaphragm 8 bottom is connected on connecting rod 22, to be employing one lock bolt 81 through the center of described diaphragm 8 be spun on described connecting rod 22 concrete attachment that described diaphragm 8 bottom is connected on connecting rod 22, diaphragm 8 is roughly peviform shape, the top of connecting rod 22 is also rotary with the lower end surface that a regulating ring 82 withstands described diaphragm 8, changes by rotating adjustment ring 82 delivery pressure that regulating ring 82 and diaphragm 8 contact condition can change whole pump; One support ring 83 is also set between described edge, diaphragm 8 lower end surface and pump case 1, can guarantees that diaphragm 8 works in same plane by support ring 83, extend the working life of diaphragm 8; The edge of diaphragm 8 upper-end surface is compressed by valve seat 3.
Shown in composition graphs 5, Fig. 7, Fig. 8, Fig. 9, mesochite 41 is provided with a buffer cavity 411 near the end face of upper cover 42, one damping fin 9 edge clamping is between described buffer cavity 411 edge and upper cover 42, described buffer cavity 411 edge is provided with a circle annular protrusion and matches with damping fin 9, between described damping fin 9 and mesochite 41, seal ring 91 be also housed and compressed by upper cover 42, to strengthen damping fin 9 sealability; Mesochite 41 is provided with intake pipe 412 and outlet pipe 413, described intake pipe 412 endoporus is provided with first passage 414 and second channel 415 by mesochite 41 and is communicated with intake tunnel 31 on valve seat 3 and described buffer cavity 411 respectively, and the endoporus of outlet pipe 413 is provided with third channel 416 by mesochite 41 and is communicated with exhalant canal 32 on valve seat 3.
Shown in Figure 10, be provided with into water non-return valve block 10 between valve seat 3 and mesochite 41 and go out Water Check Valve sheet 101, water inlet non-return valve block 10 and go out Water Check Valve sheet 101 and be roughly disc, water inlet non-return valve block 10 and go out Water Check Valve sheet 101 and be connected on a substrate 102 by both sides rib simultaneously and form integral structure, with make into water non-return valve block 10 and go out Water Check Valve sheet 101 can with nature work; The exhalant canal 32 of described valve seat 3 be provided with annular protrusion 321 with described go out Water Check Valve sheet 191 match, to strengthen the sealing effect Water Check Valve sheet 191; On the first passage 414 of mesochite 41, be also provided with annular protrusion 4141 equally to match with described water inlet non-return valve block 10, to strengthen the sealing effect of water inlet non-return valve block 10; Go out Water Check Valve sheet 101 during water inlet and block exhalant canal 32 on valve seat 3, non-return valve block 10 of intaking during water outlet blocks the first passage 414 on mesochite 41.
Fig. 7, Fig. 8 further shown in, described second channel 415 has two, and second channel 415 is in the bottom in the middle of described buffer cavity 411, and another second channel 415 is near described first passage 414.Better to improve the transport velocity of current, improve the reaction velocity of damping fin 9.
The working procedure of the present embodiment is as follows: motor 2 rotates, the live axle 21 of motor 2 is with movable eccentric wheel 6 to rotate, eccentric wheel 6 is pumped by clutch shaft bearing 5 drivening rod 22, connecting rod 22 is with dynamic diaphragm 8 to move up and down, when diaphragm 8 moves downward, go out Water Check Valve sheet 101 and block exhalant canal 32 on valve seat 3, pump chamber produces vacuum and absorbs water from the intake pipe 412 mesochite 41, when diaphragm 8 moves upward, water inlet non-return valve block 10 blocks the first passage 414 on mesochite 41, and diaphragm 8 produces malleation from outlet pipe 413 draining mesochite 41.In water absorption course, water in damping fin 9 and described buffer cavity 411 plays the effect sucking stabilizer, water in the process of draining in damping fin 9 and described buffer cavity 411 plays pulse damped effect, guarantees the stable of delivery pressure and flow, and reduces the noise that valve block pats.
Below be only the present invention's preferred embodiment, those skilled in the art makes by claim the protection domain that equivalent change all falls into this case.
Claims (9)
1. the micro pump with damping fin, comprise pump case, motor, valve seat, lid, on the side that motor is contained in pump case and motor driving shaft stretches in pump case, valve seat and lid are fixed on the upside of pump case successively, valve seat is provided with intake tunnel and exhalant canal, it is characterized in that: pump case can produce reciprocating connecting rod built with being driven by motor driving shaft, one diaphragm bottom is connected on connecting rod, the edge of diaphragm is pressed between pump case and valve seat, described lid comprises mesochite and upper cover, mesochite connecting valve seat, upper cover connects mesochite, mesochite is provided with a buffer cavity near the end face of upper cover, one damping fin edge clamping is between described buffer cavity edge and upper cover, mesochite is provided with intake pipe and outlet pipe, and described intake pipe endoporus is provided with first passage and second channel by mesochite and is communicated with intake tunnel on valve seat and described buffer cavity respectively, and the endoporus of outlet pipe is communicated with the exhalant canal on valve seat, be provided with between valve seat and mesochite into water and go out Water Check Valve sheet, go out Water Check Valve sheet during water inlet and block exhalant canal on valve seat, non-return valve block of intaking during water outlet blocks the first passage on mesochite.
2. a kind of micro pump with damping fin according to claim 1, is characterized in that: the exhalant canal of described valve seat be provided with annular protrusion with described go out Water Check Valve sheet match; The first passage of mesochite is also provided with annular protrusion match with described water inlet non-return valve block.
3. a kind of micro pump with damping fin according to claim 1, is characterized in that: described water inlet and go out Water Check Valve sheet and be connected on a substrate by both sides rib simultaneously and form integral structure.
4. a kind of micro pump with damping fin according to claim 1, it is characterized in that: a lock bolt is spun on described connecting rod through the center of described diaphragm and described diaphragm bottom is connected on connecting rod, and the top of connecting rod is also rotary with the lower end surface that a regulating ring withstands described diaphragm.
5. a kind of micro pump with damping fin according to claim 1, is characterized in that: also arrange a support ring between described edge, diaphragm lower end surface and pump case.
6. a kind of micro pump with damping fin according to claim 1, is characterized in that: also seal ring is housed between described damping fin and mesochite.
7. a kind of micro pump with damping fin according to claim 1, is characterized in that: described second channel has two, and a second channel is in the bottom in the middle of described buffer cavity, and another second channel is near described first passage.
8. a kind of micro pump with damping fin according to any one of claim 1 to 7, is characterized in that: described pump case is formed by the first housing and the second shell combination, and motor is connected in the side of the first housing.
9. a kind of micro pump with damping fin according to claim 8, it is characterized in that: described connecting rod bottom be provided with perpendicular to pitman shaft to cross through hole, in described cross through hole, clutch shaft bearing is housed, the endoporus of clutch shaft bearing matches with an eccentric wheel, described motor driving shaft passes eccentric center hole and utilizes fastening screw trip bolt and eccentric wheel to be fastened, described motor driving shaft matches with the center hole of the second bearing through eccentric one end, and the second bearing dress on the second housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510017751.9A CN104533763B (en) | 2015-01-14 | 2015-01-14 | Miniature water pump with damping fin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510017751.9A CN104533763B (en) | 2015-01-14 | 2015-01-14 | Miniature water pump with damping fin |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104533763A true CN104533763A (en) | 2015-04-22 |
| CN104533763B CN104533763B (en) | 2017-05-03 |
Family
ID=52849353
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510017751.9A Active CN104533763B (en) | 2015-01-14 | 2015-01-14 | Miniature water pump with damping fin |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104533763B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108105057A (en) * | 2017-12-28 | 2018-06-01 | 广东天物新材料科技有限公司 | A kind of water pump |
| CN108278193A (en) * | 2018-01-23 | 2018-07-13 | 珠海易咖科技有限公司 | High pressure micro pump, coffee machine and its working method |
| CN113048041A (en) * | 2021-04-09 | 2021-06-29 | 南京瞬拍信息科技有限公司 | Novel metering pump |
| CN113153705A (en) * | 2021-04-26 | 2021-07-23 | 贝德凯利电气（深圳）有限公司 | Diaphragm pump with waterproof ventilative structure |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09112417A (en) * | 1995-10-13 | 1997-05-02 | Taisan Kogyo Kk | Electromagnetic pump for sanitary-flushing closet seat device |
| KR100282189B1 (en) * | 1999-02-26 | 2001-02-15 | 정휘동 | Boosting pump using vibration of motor |
| JP2007009837A (en) * | 2005-07-01 | 2007-01-18 | Enomoto Micro Pump Seisakusho:Kk | Diaphragm pump |
| CN201714641U (en) * | 2010-07-20 | 2011-01-19 | 厦门坤锦电子科技有限公司 | Diaphragm gas pump for fuel battery |
| CN203614374U (en) * | 2013-12-09 | 2014-05-28 | 厦门坤锦电子科技有限公司 | Miniature air pump |
| CN204402807U (en) * | 2015-01-14 | 2015-06-17 | 厦门坤锦电子科技有限公司 | A kind of micro pump with damping fin |
-
2015
- 2015-01-14 CN CN201510017751.9A patent/CN104533763B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09112417A (en) * | 1995-10-13 | 1997-05-02 | Taisan Kogyo Kk | Electromagnetic pump for sanitary-flushing closet seat device |
| KR100282189B1 (en) * | 1999-02-26 | 2001-02-15 | 정휘동 | Boosting pump using vibration of motor |
| JP2007009837A (en) * | 2005-07-01 | 2007-01-18 | Enomoto Micro Pump Seisakusho:Kk | Diaphragm pump |
| CN201714641U (en) * | 2010-07-20 | 2011-01-19 | 厦门坤锦电子科技有限公司 | Diaphragm gas pump for fuel battery |
| CN203614374U (en) * | 2013-12-09 | 2014-05-28 | 厦门坤锦电子科技有限公司 | Miniature air pump |
| CN204402807U (en) * | 2015-01-14 | 2015-06-17 | 厦门坤锦电子科技有限公司 | A kind of micro pump with damping fin |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108105057A (en) * | 2017-12-28 | 2018-06-01 | 广东天物新材料科技有限公司 | A kind of water pump |
| CN108278193A (en) * | 2018-01-23 | 2018-07-13 | 珠海易咖科技有限公司 | High pressure micro pump, coffee machine and its working method |
| CN113048041A (en) * | 2021-04-09 | 2021-06-29 | 南京瞬拍信息科技有限公司 | Novel metering pump |
| CN113153705A (en) * | 2021-04-26 | 2021-07-23 | 贝德凯利电气（深圳）有限公司 | Diaphragm pump with waterproof ventilative structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104533763B (en) | 2017-05-03 |
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