CN102536756B - Miniature liquid pump - Google Patents
Miniature liquid pump Download PDFInfo
- Publication number
- CN102536756B CN102536756B CN201210010421.3A CN201210010421A CN102536756B CN 102536756 B CN102536756 B CN 102536756B CN 201210010421 A CN201210010421 A CN 201210010421A CN 102536756 B CN102536756 B CN 102536756B
- Authority
- CN
- China
- Prior art keywords
- water
- umbrella
- water pocket
- base
- arranges
- 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
Abstract
The invention discloses a miniature liquid pump, which comprises a top cap, an umbrella seat, a water bag holder, a base, a water bag, a curved bar, a driving wheel, a driven wheel and a motor. The motor is mounted in the base, the driving wheel is mounted on a rotary shaft of the motor, and the driven wheel meshes with the driving wheel and is mounted in the base and provided with an eccentric hole. One end of a driving shaft is inserted into the eccentric hole while the other end of the driving shaft is connected with the curved bar. The water bag holder is mounted on the base and provided with a mounting hole for mounting the water bag, and the bottom of the water bag is mounted on the curved bar. The umbrella seat is mounted on the water bag holder and provided with a water inlet and a water outlet, an umbrella-shaped one-way water inlet valve and an umbrella-shaped one-way water outlet valve are respectively mounted on the water inlet and the outer outlet, the integral umbrella surface is uniform in thickness, and the front side of the umbrella surface forms an acute angle with an umbrella stem. The top cap is mounted on the umbrella seat and provided with a water inlet passage and a water outlet passage, wherein the water inlet passage is communicated with the water inlet and the water outlet passage is communicated with the water outlet. The miniature liquid pump is excellent in tightness and damages to the motor due to breakage of the water bag can be avoided effectively.
Description
Technical field
The present invention relates to a kind of micropump, refer in particular to a kind of Miniature liquid pump.
Background technique
Consult shown in Fig. 1 and Fig. 1 a, in prior art, the Japanese Patent Room discloses a kind of Miniature liquid pump, and its patent No. is " P2000-154782A ", and it comprises upper cover 10, umbrella shank 20, water pocket seat 30, base 40, water pocket 50, curved bar 60, live axle 70, follower 80, driving wheel 90 and motor 100; Motor 100 is arranged in base 40, and driving wheel 90 is arranged in the rotating shaft of motor 100; Follower 80 engages with driving wheel 90 and is arranged in base 40, follower 80 is arranged eccentric opening 801; Live axle 70 one end is inserted in eccentric opening 801, and the other end is connected with curved bar 60; Water pocket seat 30 is installed on the base 40 it, water pocket seat 30 is formed mounting hole 301, and water pocket 50 is arranged in mounting hole 301, is arranged on curved bar 60 bottom water pocket 50; Umbrella shank 20 is arranged on water pocket seat 30, umbrella shank 20 arranges the water inlet relative with water pocket 50 and osculum, water inlet is installed umbrella shape one-way water inlet valve 201; Upper cover 10 is arranged on umbrella shank 20, and upper cover 10 arranges intake tunnel 101 and exhalant canal 102, and intake tunnel 101 is communicated with water inlet, forms valve chamber 203 in exhalant canal 102, and tubular valve body 202 is placed in valve chamber 203, and exhalant canal 102 is communicated with osculum.
And be provided with the corrugated water-impermeable piece 200 of section between water pocket seat 30 and base 40, the corrugated water-impermeable piece 200 of section is enclosed within curved bar 60 by perforation, forms Seal cage between the corrugated water-impermeable piece 200 of section and water pocket seat 30.
Above-mentioned Miniature liquid pump of the prior art, has following defect:
One, osculum completes unidirectional effluent functions by the tubular valve body in valve chamber, and therefore, water pump can be gone out as long as act on little pressure when water outlet, its sealing is poor; Meanwhile, the water pumped is under atmospheric pressure likely via clearance backflow;
Two, water inlet is installed umbrella shape one-way water inlet valve, consult shown in Fig. 1 a, the forward of its umbrella cover almost vertical with handle of umbrella (for convenience of description, the one side relative with handle of umbrella is defined as forward by the present invention), and the thickness of umbrella cover is thinning gradually to edge by center, especially edge is very thin, the periphery of this umbrella cover can be pushed open, its poor air-tightness as long as act on little pressure during water inlet; Meanwhile, this umbrella cover edge is very thin, and the elastic pressure between itself and water inlet periphery is not enough, and its sealing difference weakens further, is easy to infiltration;
Three, upper cover and umbrella shank are screwed, therefore, and its poor air-tightness;
Four, water pocket outer wall is direct contacts with installation hole wall, and during use, water pocket is out of shape and directly constantly rubs with installation hole wall, causes water pocket to break;
Five, the corrugated water-impermeable piece of section is directly enclosed within curved bar by perforation, and make to form plane-plane contact between water-impermeable piece and curved bar, therefore, easily seepage occurs, sealing is poor; Secondly, the section of water-impermeable piece is waveform, and the cavity volume formed between water-impermeable piece and water pocket seat is little, and it is applicable to the liquid pump of small flow.
In view of the above-mentioned defect of Miniature liquid pump in prior art, the present inventor develops a kind of Miniature liquid pump overcoming above-mentioned defect, and this case produces thus.
Summary of the invention
An object of the present invention is the Miniature liquid pump providing a kind of water inlet and osculum good airproof performance;
Two of object of the present invention is the Miniature liquid pump providing a kind of upper cover and umbrella shank good airproof performance;
Three of object of the present invention is to provide a kind of Miniature liquid pump that can effectively prevent water pocket from breaking;
Four of object of the present invention is to provide a kind of Miniature liquid pump effectively preventing from damaging because water pocket breaks motor further.
For reaching above-mentioned purpose, solution of the present invention is:
A kind of Miniature liquid pump, comprises upper cover, umbrella shank, water pocket seat, base, water pocket, curved bar, driving wheel, live axle, follower and motor; Motor is installed in the base, and driving wheel is arranged in the rotating shaft of motor; Follower engages with driving wheel and installs in the base, and follower arranges eccentric opening; Live axle one end is inserted in eccentric opening, and the other end is connected with curved bar; Water pocket seat is arranged on base, and water pocket seat forms mounting hole, and water pocket is arranged in mounting hole, is arranged on curved bar bottom water pocket; Umbrella shank is arranged on water pocket seat, umbrella shank arranges the water inlet relative with water pocket and osculum, water inlet is installed umbrella shape one-way water inlet valve, osculum is installed umbrella shape one-way water outlet valve, one-way water inlet valve and one-way water outlet valve, the thickness uniformity of its whole umbrella cover, and the forward of umbrella cover and handle of umbrella acutangulate; Upper cover is arranged on umbrella shank, and upper cover arranges intake tunnel and exhalant canal, and intake tunnel communicates with water inlet, and exhalant canal communicates with osculum.
Further, the junction surface of upper cover and umbrella shank arranges a circle groove and respectively and encloses projection, projection embeds in groove and is welded together; And umbrella shank upper end periphery arranges mounting groove, seal ring is placed in mounting groove, forms double seal.
Further, corresponding water pocket upper end position, arranges the vertical protective surface of a circle rubber at the mounting hole periphery of water pocket seat.
Further, arrange " U " type water-impermeable piece between water pocket seat and base, " U " type water-impermeable piece is enclosed within curved bar, forms " U " type sealed and step down chamber between " U " type water-impermeable piece and water pocket seat.
Further, " U " type water-impermeable piece arranges perforation, and the inwall of perforation arranges "O"-ring, and " U " type water-impermeable piece is enclosed within curved bar by perforation.
Further, follower is arranged on base by minor axis, arranges graphite flake between follower and base.
Further, projection is set below water pocket seat, curved bar arranges the boss corresponding with projection.
Further, also comprise jump ring, jump ring one end is stuck in and covers, and the other end is stuck on base; Upper cover, umbrella shank, water pocket seat and base are connected together by jump ring.
After adopting such scheme, compared with prior art, it has the following advantages in the present invention.
The first, the present invention installs umbrella shape one-way water inlet valve on water inlet, osculum is installed umbrella shape one-way water outlet valve, and one-way water inlet valve and one-way water outlet valve, on the one hand, forward and the handle of umbrella of its umbrella cover acutangulate (for convenience of description, the one side relative with handle of umbrella is defined as forward by the present invention); On the other hand, the thickness uniformity of its whole umbrella cover, namely the thickness of umbrella cover is by center to edge uniformity, has thickened the thickness at umbrella cover edge.
Therefore, be arranged on by one-way water inlet valve in water inlet and when one-way water outlet valve is arranged in osculum, forward and the handle of umbrella of umbrella cover acutangulate, umbrella cover and water inlet or osculum periphery generation extrusion-deformation, make umbrella cover tightly be pressed in water inlet or osculum periphery, strengthen tightness; Meanwhile, when the thickness of umbrella cover evenly makes umbrella cover extrude, produce enough elastic force, strengthen further one-way water inlet valve and water inlet and the sealing between one-way water outlet valve and osculum.When the one-way water inlet valve of said structure is intake, pressure requirements is large, and during same one-way water outlet valve water outlet, pressure requirements is also large, can avoid seepage uplift.
The present invention is other technical characteristics additional also, therefore, also has the following advantages in addition:
The second, projection embeds in groove and is welded together, and the plastic cement bits produced in fusion process all stay in a groove, can prevent plastic cement from considering to be worth doing and splash, and pollution medium; And umbrella shank upper end periphery arranges mounting groove, seal ring is placed in mounting groove, forms double seal, ensures the sealing of liquid pump further.
Three, corresponding water pocket upper end position; at the mounting hole periphery of water pocket seat, the vertical protective surface of one circle rubber is set; the present invention is when high pressure conditions uses; water pocket expands; the vertical protective surface of rubber protects water pocket; and water pocket can not directly directly be contacted with plastic cement mounting hole, reduce the chance of water pocket breakage, thus extend the working life of water pocket.
Four, arrange " U " type water-impermeable piece between water pocket seat and base, it is enclosed within curved bar, forms " U " type sealed and step down chamber between " U " type water-impermeable piece and water pocket seat; The step down volume in chamber of " U " type is comparatively large, and therefore, the present invention is applicable to the liquid pump of large discharge; Meanwhile, " U " type water-impermeable piece arranges perforation, and the inwall of perforation arranges "O"-ring, and " U " type water-impermeable piece is enclosed within curved bar by perforation, thus makes " U " type water-impermeable piece and curved bar form line face to seal, further enhanced leaktightness, and easy for installation.
Five, follower is arranged on base by minor axis, arranges graphite flake between follower and base; Therefore, the vibrations of follower can be weakened, reduce the friction of follower, thus strengthen the life-span.
Six, projection is set below water pocket seat, curved bar arranges the boss corresponding with projection.Curved bar is inhaled, the rapid upper punch of curved bar can be prevented and the generation of water pocket seat is swiped and damaged member.
Accompanying drawing explanation
The structural representation of Fig. 1 prior art;
Fig. 1 a is the sectional drawing of prior art one-way water inlet valve;
Fig. 2 is sectional drawing of the present invention;
Fig. 3 is the A place enlarged view of Fig. 2;
Fig. 4 is the B place figure greatly of Fig. 2;
Fig. 5 is the C place enlarged view of Fig. 2;
Fig. 6 is the D place enlarged view of Fig. 2;
Fig. 7 is the sectional drawing of one-way water inlet valve of the present invention and one-way water outlet valve.
Label declaration
Upper cover 10
Intake tunnel 101 exhalant canal 102
Umbrella shank 20 umbrella shape one-way water inlet valve 201
Tubular valve body 202 valve chamber 203
Water pocket seat 30 mounting hole 301
Base 40 water pocket 50
Curved bar 60 live axle 70
Follower 80 eccentric opening 801
Driving wheel 90 motor 100
The present invention
Upper cover 1 intake tunnel 11
Exhalant canal 12 groove 13
Umbrella shank 2
Water inlet 21 osculum 22
One-way water inlet valve 23 one-way water outlet valve 24
Projection 25 seal ring 26
Water pocket seat 3 mounting hole 31
Projection 32 is protective surface 33 vertically
Base 4 water pocket 5
Curved bar 6 axial bore 61
Jack 62 boss 63
Live axle 7 thickness d
Follower 8 eccentric opening 81
Driving wheel 9 motor 10
" U " type water-impermeable piece 20 minor axis 30
Jump ring 40 graphite flake 50.
Embodiment
Below in conjunction with the drawings and the specific embodiments, the present invention is described in detail.
Refer to shown in Fig. 2 to Fig. 7, a kind of Miniature liquid pump that the present invention discloses, comprise upper cover 1, umbrella shank 2, water pocket seat 3, base 4, water pocket 5, curved bar 6, live axle 7, follower 8, driving wheel 9 and motor 10.
Motor 10 is arranged in base 4, and driving wheel 9 is arranged in the rotating shaft of motor 10.Follower 8 engages with driving wheel 9 and is arranged in base 4, follower 8 is arranged eccentric opening 81.The diameter design of driving wheel 9 becomes to be less than the diameter of follower 8, and small gear drives gearwheel can slow down on the one hand, and can increase moment on the other hand, meanwhile, spin down can reduce noise.
Follower 8 is arranged on base 4 by minor axis 30, in order to reduce the wearing and tearing of follower 8, as shown in Figure 6, can arrange graphite flake 50 between follower 8 and base 4.
Live axle 7 one end is inserted in eccentric opening 81, and the other end is connected with curved bar 6.Can arrange axial bore 61 on curved bar 6, live axle 7 inserts this axial bore 61.
Water pocket seat 3 is arranged on base 4, water pocket seat 3 is formed mounting hole 31, and water pocket 5 is arranged in mounting hole 31, is arranged on curved bar 6 bottom water pocket 5, can arrange jack 62 on curved bar 6, inserts in this jack 62 bottom water pocket 5.For increasing the power of pump, water pocket 5 can be designed to three, and the number designed by water pocket 5 can be selected according to the watt level of pump.
For preventing that curved bar 6 is inhaled and rapid upper punch, thus scraping is produced to water pocket seat 3; Projection 32 can be set below water pocket seat 3, curved bar 6 arranges the boss 63 corresponding with projection 32.
Between water pocket seat 3 and base 4, arrange " U " type water-impermeable piece 20, " U " type water-impermeable piece 20 is enclosed within curved bar 6, forms " U " type sealed and step down chamber between " U " type water-impermeable piece 20 and water pocket seat 3.When water pocket 5 breaks, water-stop is unlikely to enter motor 10; To step down chamber owing to forming " U " type between " U " type water-impermeable piece 20 and water pocket seat 3 again, its volume is large, and therefore invention is applicable to the liquid pump of large discharge." U " type water-impermeable piece 20 arranges perforation, and as shown in Figure 5, the inwall of perforation arranges "O"-ring 201, and " U " type water-impermeable piece 20 is enclosed within curved bar by perforation, further enhanced leaktightness, and easy for installation.
For preventing the present invention when high pressure conditions uses, water pocket 5 expands, and directly directly contacts with plastic cement mounting hole 31, and the water pocket 5 that weares and teares; As shown in Figure 4, corresponding water pocket 5 upper end position, arrange the vertical protective surface 33 of a circle rubber at mounting hole 31 periphery of water pocket seat 3, the vertical protective surface 33 of rubber is highly set to 2.5mm.
Umbrella shank 2 is arranged on water pocket seat 3, umbrella shank 2 is arranged the water inlet 21 relative with water pocket 5 and osculum 22, water inlet 21 is installed umbrella shape one-way water inlet valve 23, osculum 22 is installed umbrella shape one-way water outlet valve 24, one-way water inlet valve 23 and one-way water outlet valve 24, consult shown in Fig. 7, the thickness uniformity of its umbrella cover, namely the thickness d of umbrella cover is identical, and the forward of umbrella cover and handle of umbrella acutangulate.
Upper cover 1 is arranged on umbrella shank 2, and upper cover 1 arranges intake tunnel 11 and exhalant canal 12, and intake tunnel 11 communicates with water inlet 21, and exhalant canal 12 communicates with osculum 22.
As shown in Figure 3, upper cover 1 with the junction surface of umbrella shank 2 arrange a circle groove 13 and respectively and encloses projection 25, projection 25 embeds in groove 13 and is welded together; And umbrella shank 2 upper end periphery arranges mounting groove, seal ring is placed in mounting groove, forms double seal.
For making the present invention under the use of abnormal environment; as time too high or too low for temperature; still can keep good sealing; the present invention can also arrange jump ring 40; jump ring 40 one end is stuck on upper cover 1; the other end is stuck on base 4, and upper cover 1, umbrella shank 2, water pocket seat 3 and base 4 are connected together by jump ring 40.
During use, starting electrical machinery 10 drives driving wheel 9 to rotate, and driving wheel 9 drives follower 8 to rotate, and follower 8 makes curved bar about 6 circular swing motion by live axle 7, thus the volume of water pocket 5 is stretched; When the volume of water pocket 5 becomes large, one-way water outlet valve 22 is closed, and one-way water inlet valve 23 is opened, and water pocket 5 draws water from intake tunnel 11; When the volume of water pocket 5 diminishes, one-way water outlet valve 22 is opened, and one-way water inlet valve 23 is closed, and water is pumped by exhalant canal 12 by water pocket 5.Along with the rotation of motor, the above-mentioned action of reciprocation cycle, realizes the function of pump.
Above-mentioned mode of execution is for water, and the present invention, except going for water, is also applicable to other liquid.
The foregoing is only one embodiment of the present of invention, not to the restriction of this case design, all equivalent variations done according to the design key of this case, all fall into the protection domain of this case.
Claims (5)
1. a Miniature liquid pump, is characterized in that: comprise upper cover, umbrella shank, water pocket seat, base, water pocket, curved bar, driving wheel, live axle, follower and motor; Motor is installed in the base, and driving wheel is arranged in the rotating shaft of motor; Follower engages with driving wheel and installs in the base, and follower arranges eccentric opening; Live axle one end is inserted in eccentric opening, and the other end is connected with curved bar; Water pocket seat is arranged on base, and water pocket seat forms mounting hole, and water pocket is arranged in mounting hole, is arranged on curved bar bottom water pocket; Umbrella shank is arranged on water pocket seat, umbrella shank arranges the water inlet relative with water pocket and osculum, water inlet is installed umbrella shape one-way water inlet valve, osculum is installed umbrella shape one-way water outlet valve, one-way water inlet valve and one-way water outlet valve, the thickness uniformity of its whole umbrella cover, and the forward of umbrella cover and handle of umbrella acutangulate; Upper cover is arranged on umbrella shank, and upper cover arranges intake tunnel and exhalant canal, and intake tunnel communicates with water inlet, and exhalant canal communicates with osculum; The junction surface of upper cover and umbrella shank arranges a circle groove and respectively and encloses projection, projection embeds in groove and is welded together; And umbrella shank upper end periphery arranges mounting groove, seal ring is placed in mounting groove, forms double seal; Projection is set below water pocket seat, curved bar arranges the boss corresponding with projection; Corresponding water pocket upper end position, arranges the vertical protective surface of a circle rubber at the mounting hole periphery of water pocket seat.
2. a kind of Miniature liquid pump as claimed in claim 1, is characterized in that: arrange " U " type water-impermeable piece between water pocket seat and base, and " U " type water-impermeable piece is enclosed within curved bar, forms " U " type sealed and step down chamber between " U " type water-impermeable piece and water pocket seat.
3. a kind of Miniature liquid pump as claimed in claim 2, is characterized in that: " U " type water-impermeable piece arranges perforation, and the inwall of perforation arranges "O"-ring, and " U " type water-impermeable piece is enclosed within curved bar by perforation.
4. a kind of Miniature liquid pump as claimed in claim 1, is characterized in that: follower is arranged on base by minor axis, arranges graphite flake between follower and base.
5. a kind of Miniature liquid pump as claimed in claim 1, is characterized in that: also comprise jump ring, and jump ring one end is stuck in and covers, and the other end is stuck on base; Upper cover, umbrella shank, water pocket seat and base are connected together by jump ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210010421.3A CN102536756B (en) | 2012-01-13 | 2012-01-13 | Miniature liquid pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210010421.3A CN102536756B (en) | 2012-01-13 | 2012-01-13 | Miniature liquid pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102536756A CN102536756A (en) | 2012-07-04 |
| CN102536756B true CN102536756B (en) | 2015-05-13 |
Family
ID=46344511
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210010421.3A Active CN102536756B (en) | 2012-01-13 | 2012-01-13 | Miniature liquid pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102536756B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10458402B2 (en) | 2016-07-25 | 2019-10-29 | Xiamen Conjoin Electronics Technology Co., Ltd. | Micro water pump capable of controlling flow precisely |
| DE102016121323A1 (en) * | 2016-11-08 | 2018-05-09 | Vorwerk & Co. Interholding Gmbh | Pump for a wet cleaning device |
| CN109737038A (en) * | 2019-02-20 | 2019-05-10 | 厦门科际精密器材有限公司 | Miniature liquid pump |
| CN211258953U (en) * | 2019-07-23 | 2020-08-14 | 厦门坤锦电子科技有限公司 | Diaphragm structure of diaphragm pump |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003293958A (en) * | 2002-04-02 | 2003-10-15 | Oken Ltd | Liquid diaphragm pump |
| JP2004239101A (en) * | 2003-02-04 | 2004-08-26 | Oken Ltd | Diaphragm pump |
| CN102242706A (en) * | 2011-07-07 | 2011-11-16 | 厦门坤锦电子科技有限公司 | Micro water pump |
| CN102287365A (en) * | 2011-08-31 | 2011-12-21 | 胡军 | Umbrella-shaped valve special for piezoelectric pump |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4244619A1 (en) * | 1992-12-31 | 1994-07-07 | Knf Neuberger Gmbh | Method for operating a diaphragm pump and diaphragm pump for performing the method |
| JP2000154782A (en) * | 1998-11-16 | 2000-06-06 | Oken Seiko Kk | Small-sized pump |
| JP5364447B2 (en) * | 2009-05-27 | 2013-12-11 | 多田プラスチック工業株式会社 | Diaphragm pump for fluid |
| CN202483846U (en) * | 2012-01-13 | 2012-10-10 | 厦门坤锦电子科技有限公司 | Mini liquid pump |
-
2012
- 2012-01-13 CN CN201210010421.3A patent/CN102536756B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003293958A (en) * | 2002-04-02 | 2003-10-15 | Oken Ltd | Liquid diaphragm pump |
| JP2004239101A (en) * | 2003-02-04 | 2004-08-26 | Oken Ltd | Diaphragm pump |
| CN102242706A (en) * | 2011-07-07 | 2011-11-16 | 厦门坤锦电子科技有限公司 | Micro water pump |
| CN102287365A (en) * | 2011-08-31 | 2011-12-21 | 胡军 | Umbrella-shaped valve special for piezoelectric pump |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102536756A (en) | 2012-07-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102536756B (en) | Miniature liquid pump | |
| US20090309056A1 (en) | Butterfly valve | |
| CN201656632U (en) | Sealing device for outer shell and end cover of submersible pump motor | |
| CN201535238U (en) | Pump head of positive displacement pump | |
| CN201155483Y (en) | Integrated diving pump | |
| CN203603240U (en) | Closestool sealing ring | |
| CN202483846U (en) | Mini liquid pump | |
| CN202833272U (en) | Water pump for vehicle | |
| CN202768407U (en) | Special self-priming pump | |
| CN201273297Y (en) | Dry grinding-proof mechanical sealing device | |
| CN201407165Y (en) | Reciprocating plunger pump with improved structure | |
| CN202140310U (en) | Micro water pump | |
| CN205911434U (en) | Antenna house and cable outlet seal structure thereof | |
| CN210949983U (en) | Ball valve device | |
| CN202579211U (en) | Washer pump used in car | |
| CN205583880U (en) | Motor tank filler sleeve seals annex | |
| CN202251059U (en) | Double mechanical seal structure for plastic slurry pump | |
| CN208967018U (en) | Water-driven pressure pot with clamping linking headkerchief | |
| CN203230613U (en) | Double suction pump | |
| CN210178639U (en) | Built-in submersible pump | |
| CN203570639U (en) | Solar water heater circulating pump | |
| CN213478731U (en) | Centrifugal pump bushing structure | |
| CN214466239U (en) | Plug valve | |
| CN201166114Y (en) | Elastic sealing ring with flushing hole | |
| CN203201860U (en) | Oil seal of washer pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |