CN104033365A - Miniature five-cylinder membrane pump - Google Patents
Miniature five-cylinder membrane pump Download PDFInfo
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- CN104033365A CN104033365A CN201410315923.6A CN201410315923A CN104033365A CN 104033365 A CN104033365 A CN 104033365A CN 201410315923 A CN201410315923 A CN 201410315923A CN 104033365 A CN104033365 A CN 104033365A
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Abstract
The invention discloses a miniature five-cylinder membrane pump. The miniature five-cylinder membrane pump comprises a backflow device, a pump cover, a water outlet valve, a membrane base, a water inlet valve, a waterproof membrane, a pressure-bearing base, a bearing sleeve, a bearing, an eccentric part, a pump body and a motor case. The backflow device is installed on the pump cover. The water outlet valve and the water inlet valve are installed on the membrane base. A motor shaft in the motor case penetrates through a locating hole of the pump body, the eccentric part is connected to the motor shaft and arranged in the bearing, the bearing is arranged in a locating groove of the bearing sleeve, the bearing sleeve is connected to the waterproof membrane, the pressure-bearing base is located between the bearing sleeve and the waterproof membrane, and the membrane base is connected to the waterproof membrane. The waterproof membrane is provided with a piston block. The waterproof membrane and the piston block are integrally formed, and a buffering groove is formed between the waterproof membrane and the piston block. According to the miniature five-cylinder membrane pump, fatigue tear caused by long-time work of the waterproof membrane is avoided, and the workload of a motor is greatly reduced.
Description
Technical field
The present invention relates to a kind of pump, be specifically related to a kind of miniature five cylinder diaphragm pumps.
Background technique
As shown in Figure 1, be the miniature two cylinder diaphragm pumps that generally adopt on current power spraye market.Be characterized in that operating current is low, the storage battery using is less, and cost is low, and the weight that peasant bears power spraye is lighter.Its shortcoming is that working pressure is less, inefficiency, and atomizing effect is poor, and the use amount of agricultural chemicals is large, befouling environment.
Again as shown in Figure 2, be the three cylinder diaphragm pumps that on current power spraye market, part adopts.Be characterized in that used motor is large, working pressure is high, and atomizing effect is good.Its shortcoming is that operating current is large, and when machine operation, heating value is large, uses storage battery larger, and cost is high, and peasant's the weight of bearing power spraye is heavier, and diaphragm pump spoilage is high.Three cylinder diaphragm pumps comprise: motor 31, and motor output shaft is provided with eccentric 30, eccentric 30 and is arranged on bearing 29, and bearing 29 is fixed on bearing housing 28; Bearing housing is provided with Pressure Block 27, and water proof diaphragm 26 is screwed on bearing housing 28 by piston block 25; Inlet valve 24 and outlet valve 22, through the positioning hole of diaphragm seat 23, are fixed on diaphragm seat 23, and 0 type circle 22 is fixed in the groove of diaphragm seat 23; Diaphragm seat 23 is positioned on water proof diaphragm 26, and pump cover 20 is screwed on Pressure Block 27.
Shown in figure 3, wherein the end face of outlet valve 22 is concaved circular cambered surface, and the center and peripheral of end face is provided with three stiffening ribs.Diaphragm seat is provided with corresponding concave circular arc groove.Outlet valve is met the corrosive materials such as agricultural chemicals swelling reaction is occurred, and occurs gross distortion, and the concave circular arc groove laminating of the outlet valve after distortion and diaphragm seat is not tight, shown in figure 4, and the situation that build-up of pressure reduces.
As shown in Figure 5, the water proof diaphragm 26 of three cylinder diaphragm pumps is screwed on bearing housing 28 by piston block 25.Sealing between water proof diaphragm 26 and bearing housing 28 completes by piston block 25 and the common plane extruding of bearing housing 28 water proof diaphragm 26.In the time that diaphragm pump is worked, piston block 25 and bearing housing 28 high speed up-down vibration, may make screw have loosening, causes the extruding force between piston block 25 and bearing housing 28 inadequate, occurs the situation of leaking between water proof diaphragm 26 and bearing housing 28; Again as shown in Figure 6, meeting agricultural chemicals when water proof diaphragm 26 reacts, when water proof diaphragm 26 shrinks attenuation, piston block 25 and bearing housing 28 push space invariance, also can cause the water of high pressure to enter from the screw hole of piston block 25, between water proof diaphragm 26 and bearing housing, flow out, β is the place that leaks, cause bearing 29 to get rusty stuck, the situation that motor 31 burns.When three cylinder diaphragm pump work, motor 31 drives eccentric 30 to rotate, make the piston push rod on bearing housing 28 do up-down vibration together with piston block 25, stretching piston block 25 diaphragm around, increase load when motor 31 is worked, caused the fatigability that work long hours of piston block 25 diaphragm around as shown in the γ of Fig. 6 to tear simultaneously.Water proof diaphragm 26 is met agricultural chemicals and is reacted, and after water proof diaphragm 26 shrinks, pump cover 20 pushes the convex portion less than water proof diaphragm 26, causes diaphragm pump suck, the low situation with shaking of working pressure.
Summary of the invention
The technical problem existing for prior art, the invention provides miniature five cylinder diaphragm pumps, water proof diaphragm and piston block are made single component in integrated mode, around the piston block part of water proof diaphragm, be provided with dashpot, avoid the water-separating film sheet fatigability causing that works long hours to tear, the simultaneously significantly less working load of motor.
In order to solve existing technical problem, the technical solution used in the present invention is:
A kind of miniature five cylinder diaphragm pumps, comprise reflux, pump cover, outlet valve, diaphragm seat, inlet valve, water proof diaphragm, Pressure Block, bearing housing, bearing, bias, the pump housing and motor casing from top to bottom successively; Described reflux is arranged on described pump cover; Described outlet valve and inlet valve are all arranged on described diaphragm seat; Motor shaft in described motor casing is through the positioning hole of the described pump housing; Described bias is connected on described motor shaft, and is arranged in described bearing; Described bearing is arranged on the locating slot of described bearing housing; Described bearing housing is connected in described water proof diaphragm, and described Pressure Block is between described bearing housing and water proof diaphragm; Described diaphragm seat is connected to described water proof diaphragm; On described water proof diaphragm, be provided with piston block; Described water proof diaphragm and piston block are one-body molded; Between described water proof diaphragm and piston block, be provided with dashpot.
Further, between described water valve and diaphragm seat, be provided with O type circle; Described O type circle is positioned at the groove of described diaphragm seat.
Further, described Pressure Block adopts rigidity plastics.
Further, described diaphragm seat and water proof diaphragm form five independently piston cavity.
Further, the division post that the potted line at the bottom groove place of described diaphragm seat pushes described water proof diaphragm, forms the first sealing.
Further, the potted line of the bottom margin of described diaphragm seat pushes the plane place of described water proof diaphragm, has formed the sealing of second between described piston cavity and water intake.
Further, the potted line of described pump cover bottom pushes the convex portion of described water proof diaphragm, forms the 3rd sealing.
Further, the potted line of described pump cover bottom margin pushes the extension of described water proof diaphragm, forms the 4th sealing.
Further, the bottom surface of described inlet valve is convex arc surface, and the surface of described diaphragm seat is concaved circular cambered surface, is connected between the two, and leaves gap.
Further, the bottom surface of described outlet valve is convex arc surface, and the surface of described diaphragm seat is concaved circular cambered surface, is connected between the two, and leaves gap.
Compared with prior art, the invention has the beneficial effects as follows:
The present invention has avoided the Splitting because of the piston block up-down vibration stretching water proof diaphragm that diaphragm causes around, has strengthened the sealing between water proof diaphragm and pump cover, has reduced outlet valve chance agricultural chemicals simultaneously the situation that swelling reaction causes water-aspirator pressure to reduce occurs.The working pressure of the operating pressure ratio two cylinder diaphragm pumps of miniature five cylinder diaphragm pumps improves more than 30%, has reached the agricultural chemicals materialization effect of three cylinder diaphragm pumps, has reduced the use amount of agricultural chemicals, has reduced the pollution of agricultural chemicals to environment; The miniature five cylinder diaphragm pumps of the present invention adopt the RRS775 motor identical with two cylinder diaphragm pumps, cost be only three cylinder diaphragm pumps employings zyt63 motor 2/5.Miniature five cylinder diaphragm pump electric currents are 3/4 of three cylinder diaphragm pumps, have significantly reduced the consumption of the energy, have alleviated the weight that peasant bears power spraye simultaneously, have boundless market prospects.
Brief description of the drawings
Fig. 1 is two cylinder diaphragm pump explosive views in prior art.
Fig. 2 is three cylinder diaphragm pump explosive views in prior art.
Fig. 3 is the outlet valve distortion cross-reference figure of three cylinder diaphragm pumps in prior art.
Fig. 4 is the assembling section before and after outlet valve distortion in prior art.
Fig. 5 is water proof diaphragm, piston block and the bearing housing scheme of installation of three cylinder diaphragm pumps in prior art.
Fig. 6 is water proof diaphragm, piston block and the bearing housing assembling section of three cylinder diaphragm pumps in prior art.
Fig. 7 is the water proof diaphragm of the miniature five cylinder diaphragm pumps of the present invention.
Fig. 8 is the outlet valve of the miniature five cylinder diaphragm pumps of the present invention, stereogram and the sectional drawing of outlet valve.
Fig. 9 is the pump cover of the miniature five cylinder diaphragm pumps of the present invention.
Figure 10 is the miniature five cylinder diaphragm pump explosive views of the present invention.
Figure 11 is water proof diaphragm, bearing housing and Pressure Block scheme of installation and the sectional axonometric drawing of the miniature five cylinder diaphragm pumps of the present invention.
Figure 12 is water proof diaphragm, bearing housing and the Pressure Block combination section of the miniature five cylinder diaphragm pumps of the present invention.
Figure 13 is the Pressure Block of the miniature five cylinder diaphragm pumps of the present invention.
Figure 14 is inlet valve, outlet valve and the diaphragm seat scheme of installation of the miniature five cylinder diaphragm pumps of the present invention.
Figure 15 is inlet valve, outlet valve and the diaphragm seat combination section of the miniature five cylinder diaphragm pumps of the present invention.
Figure 16 is the diaphragm seat of the miniature five cylinder diaphragm pumps of the present invention.
Figure 17 is the pump head part sectional axonometric drawing of the miniature five cylinder diaphragm pumps of the present invention.
Figure 18 is the pump cover of the miniature five cylinder diaphragm pumps of the present invention and the first combiner of reflux composition.
Figure 19 is the pump housing of the miniature five cylinder diaphragm pumps of the present invention and the 4th combiner of motor casing composition.
Figure 20 is the bearing housing of the miniature five cylinder diaphragm pumps of the present invention.
Figure 21 is the pump housing of the miniature five cylinder diaphragm pumps of the present invention.
Figure 22 is the motor casing of the miniature five cylinder diaphragm pumps of the present invention.
In figure: 1, reflux, 2, pump cover, 3, outlet valve, 4, O type circle, 5, diaphragm does, and 6, inlet valve, 7, water proof diaphragm, 8, pressure-bearing is done, and 9, bearing housing, 10, bearing, 11, bias, 12, the pump housing, 13, motor casing, 20, three cylinder diaphragm pump covers, 21, O type circle, 22, three cylinder diaphragm pump outlet valves, 23, three cylinder diaphragm of diaphragm pump seats, 24, three cylinder diaphragm pump inlet valves, 25, three cylinder diaphragm pump piston pieces, 26, three cylinder diaphragm pump water proof diaphragms, 27, three cylinder diaphragm pump Pressure Blocks, 28, three cylinder diaphragm pump bearing housings, 29, three cylinder diaphragm pump bearings, 30, three cylinder diaphragm pump bias, 31, three cylinder diaphragm pump motors, 57, miniature without cylinder diaphragm pump piston chamber, 206, 207, 504, 505 is potted line, 501, 901, 1201 is positioning hole, 502, 804, 1202 is locating slot, 303, 603, 1203, 1302 is locating column, 201, 704, 708, 802 screw holes, 506, 507 is nick arc surface, 302, 602 is dimpling arc surface, 301, 601 is plane, 202, water intake, 203, water outlet, 204, back flash, 205, fore-set, 503, O type ring recess, 701, piston block, 702, dashpot, 703, extension, 705, division post, 706, convex portion, 707, sealing column, 803, pressure-bearing surface, 903, piston push rod, 1301, thermovent
Embodiment
Below in conjunction with Figure of description and specific embodiment, the invention will be further described.
Refer to shown in Fig. 7 to Figure 22, the present invention adopts water proof diaphragm 7 and piston block 701 to make the scheme of single component in integrated mode, around piston block 701 parts of water proof diaphragm 7, be provided with dashpot 702, in the time that the piston push rod 903 on piston block 701 parts and the bearing housing 9 of water proof diaphragm 7 does up-down vibration, diaphragm in piston push rod 903 stretching dashpots 702, to piston block 701 around diaphragm do not impact, avoid water proof diaphragm 7 fatigability causing that works long hours to tear, the simultaneously significantly less working load of motor, reduce energy consumption more than 25%.Water proof diaphragm 7 bottoms are provided with sealing column 707, and sealing column 707 is provided with screw hole, and the diameter of screw hole is less than the diameter of screw.On bearing housing 9, be provided with piston push rod 903, piston push rod 903 is provided with positioning hole and screw hole.Through the screw hole on the piston block 701 of water proof diaphragm 7, sealing column 707 is fixed to the positioning hole of the piston push rod 903 of bearing housing 9 with screw.Screw crush seal post 707 and positioning hole, produce sealing effect.Sealing column does not reach agricultural chemicals, so can not exert an influence to sealing effect.
Piston cavity number is increased to five chambeies.The end face of outlet valve 3 and inlet valve 6 is set to plane, and bottom is dimpling arc surface.Outlet valve 3 is divided into five independently valve bodies by single valve body.Nick arc surface is arranged in the corresponding position of diaphragm seat 5.The inside of pump cover 2 is provided with five fore-sets.Outlet valve 3 is jointly fixing by the locating slot 502 on fore-set 205 and the diaphragm seat 5 of pump cover 2.Outlet valve 3 is met agricultural chemicals swelling reaction is occurred, and extend at the end face of outlet valve 3 at the position of distortion, and the sealing effect of outlet valve 3 is not impacted.Because outlet valve 3 is relatively independent, so in the time that some outlet valves damage, water proof diaphragm 7 can work on, working pressure only has small size reduction.The groove of diaphragm seat 5 is provided with potted line 504, and potted line 504 pushes the division post 705 of water proof diaphragm 7, has strengthened the sealing between each piston cavity.
Bottom on pump cover 2 is provided with two seals line.The projection of the first potted line extruding water proof diaphragm forms the first sealing.The extension of the second potted line extruding water proof diaphragm, forms the second sealing.The first sealing and the second sealing acting in conjunction, improved the original sealing effect of diaphragm pump greatly.
Preferably, the miniature five cylinder diaphragm pumps of the present invention, motor shaft is through the positioning hole 1201 of the pump housing 12, fixes with the first screw.Motor casing 13 is enclosed within on motor, is fixed on the locating slot 1302 of the pump housing 12 with the second screw through the locating column 1302 on motor casing 13.Motor casing 13 is provided with fence type thermovent 1301, and the position of thermovent is corresponding with the position of motor ventilating fan.Eccentric 11 are fixed on bearing 10, and bearing 10 is fixed on locating slot 904 places of bearing housing 9.With reference to being provided with piston block 701 on the water proof diaphragm shown in Figure 11, on piston block 701, there is the sealing column 707 of screw hole 708. water proof diaphragms through the positioning hole 801 of Pressure Block 8, be installed to the 3rd screw in the positioning hole 901 on the piston push rod 903 of bearing housing 9.Because the diameter of the screw hole 708 of piston block 701 is less than the diameter of the 3rd screw, the positioning hole 901 of the 3rd screw crush seal post 707 and piston push rod 903, forms sealing.On water proof diaphragm 7, be provided with dashpot 702 as shown in figure 12 again, in the time that piston push rod 903 and piston block 701 do up-down vibration, the diaphragm of piston block 701 stretching dashpots 702, piston block 701 diaphragm 709 is not around had to active force, reduce the wearing and tearing of water proof diaphragm 7, reduced the load of motor simultaneously and reduced energy consumption.Adopt rigidity plastics PPS to replace original nylon PA with reference to Pressure Block 8 shown in Figure 13, avoided that to be out of shape the sealing effect causing between piston cavity poor because of the plane 803 of Pressure Block, the situation of pressure decreased.
As shown in figure 14 O type circle 4 is arranged in the groove 503 of diaphragm seat 5.The end face 601 of inlet valve 6 is plane, and the locating column of bottom 603 is through the positioning hole 501 of diaphragm seat 5 bottoms, is fixed on diaphragm seat 5 with fixing column 604.The ground 602 of inlet valve is dimpling arc surface, and the corresponding surface 507 of diaphragm seat 5 is nick arc surface, leaves gap between the two.The end face 301 of outlet valve 3 is set to plane, and bottom centre's locating column 303 of outlet valve 3 is installed in the locating slot 502 of diaphragm seat 5, jointly fixing by the fore-set 205 on locating slot 502 and the pump cover of diaphragm seat.The bottom surface 302 of outlet valve is dimpling arc surface, and the corresponding surface 506 of diaphragm seat 5 is nick arc surface, leaves gap between the two, prevents that inlet valve and outlet valve chance agricultural chemicals from swelling reaction occurring, and exerts an influence to the sealing of water inlet and water outlet after distortion, with reference to Figure 15.
As shown in figure 16, be provided with potted line 504 in the bottom groove of diaphragm seat 5, bottom margin is provided with potted line 505. mounted diaphragm seat 5 is put on water proof diaphragm 7.Form five independently piston cavity with reference to Figure 17 diaphragm seat 5 and water proof diaphragm 7.The potted line 504 at the bottom groove place of diaphragm seat 5 pushes the division post 705 of water proof diaphragm 7, forms the first sealing a1.The potted line 505 of the bottom margin of diaphragm seat 5 pushes plane 709 places of water proof diaphragm, form the sealing of second between piston cavity and water intake (not shown), reduced water proof diaphragm 7 and met after agricultural chemicals contraction, the water of high pressure is back to from piston cavity the situation that water intake reduces pressure.
The bottom of pump cover 2 is as shown in Figure 9 provided with potted line 206, and bottom margin is provided with potted line 207.The potted line 206 of pump cover bottom pushes the convex portion 706 of water proof diaphragm 7 as shown in figure 17 again, forms the 3rd sealing a3.The potted line 207 of pump cover 2 bottom margins pushes the extension 703 of water proof diaphragm 7, forms the 4th sealing (not shown).Two seals acting in conjunction, has strengthened the sealing effect between water intake and the diaphragm pump external world.Pump cover 2 is provided with water intake 202 and water outlet 203, and water flows into from water intake 202, forms the water of high pressure after diaphragm pump work, discharges from water outlet 203.
On pump cover 2, be provided with back flash 204, in the time that water outlet 203 is closed or stopped up, water outlet 203 places form high pressure, and the water jack-up of high pressure is arranged on the reflux 1 in back flash 204, and water is back to water intake 202 from back flash, forms state of equilibrium.
Concrete installation method:
With screw, reflux 1 is installed in the back flash of pump cover 2, forms the first combiner, as shown in figure 18.
Inlet valve 6, O type circle 4, outlet valve 3 are installed on diaphragm seat 5, form the second combiner, again as shown in figure 14.
Bias 11 is installed on bearing 10, then bearing 10 is installed on bearing housing 9.Pressure Block 8 is set on bearing housing 9, and the sealing column 707 of water proof diaphragm 7 is installed to positioning hole 901 places of the piston push rod 903 of bearing housing 9 through the positioning hole 801 of Pressure Block 8, be screwed, and forms the 3rd combiner, with reference to Figure 11.
Motor is installed on the pump housing 12 through the positioning hole 1201 of the pump housing 12, then puts motor cover 13, be screwed, form the 4th combiner, with reference to Figure 19.
By the bias in the 3rd combiner 11, through motor shaft, the 3rd combiner is installed on the pump housing 12.Then the second combiner is installed on the water proof diaphragm 7 of the 3rd combiner, covers the first combiner, be screwed.Finally on the pump housing 12 and motor casing 13, install motor pin.
To the above-mentioned explanation of the disclosed embodiments, make professional and technical personnel in the field can realize or use the present invention.To be apparent for those skilled in the art to these embodiments' multiple amendment, General Principle as defined herein can, in the situation that not departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention will can not be limited to these embodiments shown in this article, but will accord with principle disclosed herein and features of novelty the widest consistent scope.
Claims (10)
1. miniature five cylinder diaphragm pumps, is characterized in that: comprise successively from top to bottom reflux (1), pump cover (2), outlet valve (3), diaphragm seat (5), inlet valve (6), water proof diaphragm (7), Pressure Block (8), bearing housing (9), bearing (10), eccentric (11), the pump housing (12) and motor casing (13); Described reflux (1) is arranged on described pump cover (2); Described outlet valve (3) and inlet valve (6) are all arranged on described diaphragm seat (5); Motor shaft in described motor casing (13) is through the positioning hole (1201) of the described pump housing (12); Described bias (11) is connected on described motor shaft, and is arranged in described bearing (10); Described bearing (10) is arranged on the locating slot (904) of described bearing housing (9); Described bearing housing (9) is connected in described water proof diaphragm (7), and described Pressure Block (8) is positioned between described bearing housing (9) and water proof diaphragm (7); Described diaphragm seat (5) is connected to described water proof diaphragm (7); On described water proof diaphragm (7), be provided with piston block (701); Described water proof diaphragm (7) and piston block (701) are one-body molded; Between described water proof diaphragm (7) and piston block (701), be provided with dashpot (702).
2. miniature five cylinder diaphragm pumps according to claim 1, is characterized in that: between described water valve (3) and diaphragm seat (5), be provided with O type circle (4); Described O type circle (4) is positioned at the groove (503) of described diaphragm seat (5).
3. miniature five cylinder diaphragm pumps according to claim 1, is characterized in that: described Pressure Block (8) adopts rigidity plastics.
4. miniature five cylinder diaphragm pumps according to claim 1, is characterized in that: described diaphragm seat (5) and water proof diaphragm (7) form five independently piston cavity.
5. miniature five cylinder diaphragm pumps according to claim 1, is characterized in that: the potted line (504) at the bottom groove place of described diaphragm seat (5) pushes the division post (705) of described water proof diaphragm (7), form the first sealing.
6. miniature five cylinder diaphragm pumps according to claim 4, it is characterized in that: the potted line (505) of the bottom margin of described diaphragm seat (5) pushes the plane (709) of described water proof diaphragm (7) and locates, formed the sealing of second between described piston cavity and water intake.
7. miniature five cylinder diaphragm pumps according to claim 1, is characterized in that: the potted line (206) of described pump cover (2) bottom pushes the convex portion (706) of described water proof diaphragm (7), forms the 3rd sealing.
8. miniature five cylinder diaphragm pumps according to claim 1, is characterized in that: the potted line (207) of described pump cover (2) bottom margin pushes the extension (703) of described water proof diaphragm (7), form the 4th sealing.
9. miniature five cylinder diaphragm pumps according to claim 1, is characterized in that: the bottom surface (602) of described inlet valve (6) is convex arc surface, and the surface (507) of described diaphragm seat (5) is concaved circular cambered surface, is connected between the two, and leaves gap.
10. miniature five cylinder diaphragm pumps according to claim 1, is characterized in that: the bottom surface (302) of described outlet valve (3) is convex arc surface, and the surface (506) of described diaphragm seat (5) is concaved circular cambered surface, is connected between the two, and leaves gap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410315923.6A CN104033365B (en) | 2014-07-03 | 2014-07-03 | Miniature five cylinder membrane pumps |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410315923.6A CN104033365B (en) | 2014-07-03 | 2014-07-03 | Miniature five cylinder membrane pumps |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104033365A true CN104033365A (en) | 2014-09-10 |
| CN104033365B CN104033365B (en) | 2016-08-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410315923.6A Active CN104033365B (en) | 2014-07-03 | 2014-07-03 | Miniature five cylinder membrane pumps |
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| Country | Link |
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| CN (1) | CN104033365B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111692075A (en) * | 2019-03-12 | 2020-09-22 | 日立环球生活方案株式会社 | Compressor and equipment with same |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4141434A1 (en) * | 1991-12-16 | 1993-06-17 | Fafnir Gmbh | DIAPHRAGM VACUUM PUMP |
| WO2005106247A2 (en) * | 2004-04-21 | 2005-11-10 | Itt Corporation | Five piston diaphragm pump |
| CN201925133U (en) * | 2010-11-25 | 2011-08-10 | 雷平现 | Electric diaphragm pump |
| CN203273082U (en) * | 2013-04-27 | 2013-11-06 | 浙江铭仕管业有限公司 | Single face spanner position temperature measuring pipe fitting with diameter reducing structures |
| CN203570550U (en) * | 2013-11-19 | 2014-04-30 | 厦门坤锦电子科技有限公司 | Large flow micro air pump |
-
2014
- 2014-07-03 CN CN201410315923.6A patent/CN104033365B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4141434A1 (en) * | 1991-12-16 | 1993-06-17 | Fafnir Gmbh | DIAPHRAGM VACUUM PUMP |
| WO2005106247A2 (en) * | 2004-04-21 | 2005-11-10 | Itt Corporation | Five piston diaphragm pump |
| CN201925133U (en) * | 2010-11-25 | 2011-08-10 | 雷平现 | Electric diaphragm pump |
| CN203273082U (en) * | 2013-04-27 | 2013-11-06 | 浙江铭仕管业有限公司 | Single face spanner position temperature measuring pipe fitting with diameter reducing structures |
| CN203570550U (en) * | 2013-11-19 | 2014-04-30 | 厦门坤锦电子科技有限公司 | Large flow micro air pump |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111692075A (en) * | 2019-03-12 | 2020-09-22 | 日立环球生活方案株式会社 | Compressor and equipment with same |
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| Publication number | Publication date |
|---|---|
| CN104033365B (en) | 2016-08-24 |
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