CN218266278U - Negative pressure vacuum pump with multilayer noise reduction structure - Google Patents
Negative pressure vacuum pump with multilayer noise reduction structure Download PDFInfo
- Publication number
- CN218266278U CN218266278U CN202222041027.8U CN202222041027U CN218266278U CN 218266278 U CN218266278 U CN 218266278U CN 202222041027 U CN202222041027 U CN 202222041027U CN 218266278 U CN218266278 U CN 218266278U
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- valve plate
- motor
- vacuum pump
- cylinder body
- negative pressure
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 15
- 239000010959 steel Substances 0.000 claims abstract description 15
- 238000007789 sealing Methods 0.000 claims description 4
- 210000000481 breast Anatomy 0.000 abstract description 7
- 239000000463 material Substances 0.000 description 8
- 230000002745 absorbent Effects 0.000 description 3
- 239000002250 absorbent Substances 0.000 description 3
- 239000012752 auxiliary agent Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 150000001412 amines Chemical class 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000012952 cationic photoinitiator Substances 0.000 description 2
- 239000012949 free radical photoinitiator Substances 0.000 description 2
- 210000004251 human milk Anatomy 0.000 description 2
- 235000020256 human milk Nutrition 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000004611 light stabiliser Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 229920006305 unsaturated polyester Polymers 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- NJCDRURWJZAMBM-UHFFFAOYSA-N 6-phenyl-1h-1,3,5-triazin-2-one Chemical group OC1=NC=NC(C=2C=CC=CC=2)=N1 NJCDRURWJZAMBM-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 1
- 238000003848 UV Light-Curing Methods 0.000 description 1
- QYKIQEUNHZKYBP-UHFFFAOYSA-N Vinyl ether Chemical compound C=COC=C QYKIQEUNHZKYBP-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- UHESRSKEBRADOO-UHFFFAOYSA-N ethyl carbamate;prop-2-enoic acid Chemical compound OC(=O)C=C.CCOC(N)=O UHESRSKEBRADOO-UHFFFAOYSA-N 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000002445 nipple Anatomy 0.000 description 1
- 238000001782 photodegradation Methods 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 238000004383 yellowing Methods 0.000 description 1
Images
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- Reciprocating Pumps (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
- Compressor (AREA)
Abstract
The utility model relates to a negative pressure vacuum pump technical field discloses a negative pressure vacuum pump with structure of making an uproar falls in multilayer, which comprises a motor, the top edge fixed connection of motor is in the bottom of bottom, middle part one side of bottom is provided with connects the mouth, just the one end of connecting the mouth communicates with the inside of bottom, the inboard middle part of bottom is provided with the cylinder body, the inboard middle part of cylinder body is provided with the diaphragm, the top of motor shaft is provided with the steel ball, fixedly connected with eccentric wheel in the pivot of motor, top middle part one side fixed connection of eccentric wheel is in the bottom of steel needle, the top fixed connection of steel needle is at the bottom middle part of rocker, the top of cylinder body is provided with down the valve plate. The utility model discloses in, degrade and weaken the noise that the pump body sent through the mode of adopting triple to fall and make an uproar, reduce the noise of breast pump when using, convenient to use person's use.
Description
Technical Field
The utility model relates to a negative pressure vacuum pump technical field especially relates to a negative pressure vacuum pump with structure of making an uproar falls in multilayer.
Background
The breast pump is generally suitable for the condition that a baby cannot directly suck breast milk or the nipple of a mother has problems, and also has the condition that breast milk feeding is still expected despite of the fact that the baby keeps working.
The existing electric breast pump can be generally simply divided into two forms of a single pump and a double pump, and the pump body inside the electric breast pump is a negative pressure vacuum pump basically used.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects existing in the prior art and providing a negative pressure vacuum pump with a multilayer noise reduction structure.
In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a negative pressure vacuum pump with structure of making an uproar falls in multilayer, includes the motor, the top edge fixed connection of motor is in the bottom of bottom, middle part one side of bottom is provided with connects the mouth, just the one end of connecting the mouth communicates with the inside of bottom, the inboard middle part of bottom is provided with the cylinder body, the inboard middle part of cylinder body is provided with the diaphragm, the top of motor shaft is provided with the steel ball, fixedly connected with eccentric wheel in the pivot of motor, top middle part one side fixed connection of eccentric wheel is in the bottom of steel needle, the top fixed connection of steel needle is at the bottom middle part of rocker, the top of cylinder body is provided with down the valve plate, the equidistance is provided with three second mounting hole on the valve plate down, all be provided with second umbrella valve in the second mounting hole, the equidistance is provided with three group second gas pockets on the valve plate down, the top of valve plate is provided with the valve plate down, the middle part of going up the valve plate is provided with first mounting hole, be provided with first gas pocket on the upper valve plate.
As a further description of the above technical solution:
the top of going up the valve plate is provided with the upper cover, on cover and be provided with the exhaust hole, the top of upper cover is close to the equidistance threaded connection of edge has three second connecting bolt, just the bottom of second connecting bolt runs through upper valve plate, lower valve plate, cylinder body in proper order and extends to the inside of bottom.
As a further description of the above technical solution:
the top equidistance threaded connection of motor has two first connecting bolt, be provided with the sealing washer in the pivot of motor, the bottom middle part both sides of motor all are provided with the pin.
The utility model discloses following beneficial effect has:
the utility model discloses in, remove the inside gas flow direction of change pump chamber through the umbrella valve on the upper and lower valve plate, make gaseous flow direction carry out the water conservancy diversion along the surface of umbrella valve, noise when reducing gas impact valve plate, and through the rubber UV layer of silk screen industry processing on the upper and lower valve plate, pat the noise of valve plate when having reduced the umbrella valve whereabouts, fall the noise that the mode of making an uproar produced negative pressure vacuum pump during operation through the triplex noise reduction, the noise that the inside pump body sent when conveniently reducing the breast pump use, make the user also can not exert an influence to environment and personnel on every side when using the breast pump, convenient to use person's use.
Drawings
Fig. 1 is a schematic front-side bottom view structural diagram of a negative pressure vacuum pump with a multi-layer noise reduction structure according to the present invention;
fig. 2 is a schematic front view of a negative pressure vacuum pump with a multilayer noise reduction structure provided by the present invention;
fig. 3 is an exploded view of the overall structure of a negative pressure vacuum pump with a multi-layer noise reduction structure according to the present invention;
fig. 4 is a schematic structural view of an upper end of an upper valve plate of a negative pressure vacuum pump with a multilayer noise reduction structure provided by the present invention;
fig. 5 is a schematic structural view of a lower end of an upper valve plate of a negative pressure vacuum pump with a multi-layer noise reduction structure according to the present invention;
fig. 6 is a schematic structural view of an upper end of a lower valve plate of a negative pressure vacuum pump with a multilayer noise reduction structure provided by the present invention;
fig. 7 is the utility model provides a lower valve plate lower extreme structural sketch map of negative pressure vacuum pump with multilayer noise reduction structure.
Illustration of the drawings:
1. a motor; 2. a bottom cover; 3. a lower valve plate; 4. an upper valve plate; 5. an upper cover; 6. a cylinder body; 7. a connecting nozzle; 8. a pin; 9. a first umbrella valve; 10. a first mounting hole; 11. a first air hole; 12. a second umbrella valve; 13. a second mounting hole; 14. a second air hole; 15. a first connecting bolt; 16. a seal ring; 17. Steel balls; 18. an eccentric wheel; 19. a steel needle; 20. placing a frame; 21. a membrane; 22. and a second connecting bolt.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1-7, the present invention provides an embodiment: a negative pressure vacuum pump with a multilayer noise reduction structure comprises a motor 1, wherein the edge of the top end of the motor 1 is fixedly connected to the bottom end of a bottom cover 2, a connecting nozzle 7 is arranged on one side of the middle of the bottom cover 2, one end of the connecting nozzle 7 is communicated with the inside of the bottom cover 2, a cylinder body 6 is arranged in the middle of the inner side of the bottom cover 2, a diaphragm 21 is arranged in the middle of the inner side of the cylinder body 6, a steel ball 17 is arranged at the top end of a rotating shaft of the motor 1, an eccentric wheel 18 is fixedly connected to the rotating shaft of the motor 1, one side of the middle of the top end of the eccentric wheel 18 is fixedly connected to the bottom end of a steel needle 19, the top end of the steel needle 19 is fixedly connected to the middle of the bottom end of a swing frame 20, a lower valve plate 3 is arranged at the top end of the cylinder body 6, three second mounting holes 13 are equidistantly arranged on the lower valve plate 3, second umbrella valves 12 are arranged in the second mounting holes 13, three groups of second air holes 14 are equidistantly arranged on the lower valve plate 3, an upper valve plate 4 is arranged at the top end of the lower valve plate 3, the middle part of the upper valve plate 4 is provided with a first mounting hole 10, a first umbrella valve 9 is arranged in the first mounting hole 10, three first air holes 11 are equidistantly arranged on the upper valve plate 4, when the breast pump is used, pressure difference is generated between the connecting nozzle 7 and the external atmospheric pressure, air is sucked into a pump cavity through the connecting nozzle 7 and then is discharged through a second air hole 14 on the lower valve plate 3, the air is discharged from the second air hole 14, meanwhile, the upper end of a second umbrella valve 12 is driven to deform, noise generated by the air is primarily reduced through the second umbrella valve 12, the air is discharged from the second air hole 14 to reach the bottom end of the upper valve plate 4, the air is discharged through the first air hole 11, meanwhile, the upper end of the first umbrella valve 9 is driven to deform, noise generated by the first umbrella valve 9 is reduced again, and by changing the flow direction of the air, the flow direction of the gas is guided along the surface of the umbrella valve, and the noise generated when the gas impacts the valve plate is reduced.
The top of going up valve plate 4 is provided with upper cover 5, be provided with the exhaust hole on upper cover 5, seal the pump chamber of the pump body through upper cover 5, prevent that outside impurity from entering into the inside damage that needs to cause the inside device of pump chamber, and discharge the inside gas of pump chamber through the exhaust hole on upper cover 5, the top of upper cover 5 is close to edge equidistance threaded connection and has three second connecting bolt 22, and second connecting bolt 22's bottom runs through upper valve plate 4 in proper order, lower valve plate 3, cylinder body 6 and the inside that extends to bottom 2, through three second connecting bolt 22 with upper valve plate 4, lower valve plate 3, cylinder body 6 and bottom 2 are connected fixedly, stability when improving the integrated device and using.
The method comprises the following processing steps:
s1: proportioning the rubber UV material according to a specified proportion, and heating and melting the ingredients;
s2: placing the upper valve plate and the lower valve plate on corresponding workbenches, fixing and aligning the upper valve plate and the lower valve plate, and then plugging air holes and mounting holes in the upper valve plate and the lower valve plate by using rubber columns;
s3: slowly pouring the melted rubber UV material on the upper valve plate and the lower valve plate;
s4: scraping the redundant rubber UV material on the valve plate by using a scraper, and collecting the redundant rubber UV material into a special storage container for storage;
s5: taking down the rubber columns on the upper valve plate and the lower valve plate, and airing the upper valve plate and the lower valve plate;
s6: the upper valve plate and the lower valve plate which are processed and air-dried and formed are installed on the pump body, when gas in the air holes in the upper valve plate and the lower valve plate disappears, the first umbrella valve 9 and the second umbrella valve 12 recover the original shapes to fall, the flexibility of the surfaces of the upper valve plate and the lower valve plate is improved through the rubber UV layers on the upper valve plate and the lower valve plate, and the noise generated when the umbrella valves fall and slap the valve plates is reduced, so that the purpose of finally reducing noise is achieved, and the effect of reducing the noise of the pump body by 5-6db can be achieved.
The rubber UV material comprises 70-73% of UV curing resin, 3-5% of photoinitiator, 5-8% of pigment and filler and 10-17% of auxiliary agent.
The material of the UV curable resin may be unsaturated polyester, vinyl ether resin, unsaturated polyester acrylate, urethane acrylate, epoxy resin, etc., and the type of the UV material may be selected according to the state of use of the device and the influence of other external devices.
The photoinitiator can adopt a free radical photoinitiator and a cationic photoinitiator, when the UV material is melted, the photoinitiator adopting the free radical photoinitiator and the cationic photoinitiator does not generate yellowing, is stable at the melting temperature, does not generate thermal-initiated chemical reaction, and improves the safety factor of the whole device during processing and use.
The auxiliary agent is made of UV absorbent and hindered amine light stabilizer, the UV absorbent is hydroxyphenyl-S-triazine, and the auxiliary agent made of the UV absorbent and the hindered amine light stabilizer can filter UV radiation which causes initial photodegradation of the polymer in sunlight, is also beneficial to maintaining the color and the adhesive force of the rubber UV coating, and improves the adhesive stability of the rubber UV layers on the upper valve plate and the lower valve plate.
The working principle is as follows: when the pump body works, the rotating shaft of the motor 1 drives the eccentric wheel 18 to rotate, the eccentric wheel 18 drives the swing frame 20 to do reciprocating circular motion in the bottom cover 2 through the steel needle 19 while rotating, the swing frame 20 squeezes different positions at the bottom end of the diaphragm 21 on the cylinder body 6 while doing reciprocating circular motion, so that air in the pump cavity is compressed and stretched to form negative pressure, pressure difference is generated between the position of the connecting nozzle 7 and the external atmospheric pressure, the air is sucked into the pump cavity through the connecting nozzle 7 and then is discharged through the second air hole 14 on the lower valve plate 3, the upper end of the second umbrella valve 12 is driven to generate deformation while the air is discharged from the second air hole 14, noise generated by the air is primarily reduced through the second umbrella valve 12, and the air is discharged from the second air hole 14 to reach the bottom end of the upper valve plate 4, gaseous upper end that drives first umbrella valve 9 when carrying out the exhaust through first gas pocket 11 produces deformation, and carry out the noise that falls once more to the noise that gaseous production through first umbrella valve 9, through the flow direction that changes gaseous, make gaseous flow direction to carry out the water conservancy diversion along the surface of umbrella valve, noise when reducing gaseous impact valve plate, when gaseous disappearance in the gas pocket on the upper and lower valve plate, first umbrella valve 9 and second umbrella valve 12 resume original shape and fall, and improve the pliability on upper and lower valve plate surface through the rubber UV layer on the upper and lower valve plate, beat the noise of valve plate when reducing the umbrella valve whereabouts, thereby realize the purpose of making an uproar at last, fall the noise that the mode of making an uproar produced the during operation of negative pressure vacuum pump through triple, the noise decibel of negative pressure vacuum pump during operation has been reduced.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions on some technical features, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of the present invention.
Claims (3)
1. A negative pressure vacuum pump with a multilayer noise reduction structure comprises a motor (1), and is characterized in that: the top edge of the motor (1) is fixedly connected with the bottom end of the bottom cover (2), a connecting nozzle (7) is arranged on one side of the middle part of the bottom cover (2), and one end of the connecting nozzle (7) is communicated with the inside of the bottom cover (2), a cylinder body (6) is arranged in the middle of the inner side of the bottom cover (2), a diaphragm (21) is arranged in the middle of the inner side of the cylinder body (6), the top end of the rotating shaft of the motor (1) is provided with a steel ball (17), an eccentric wheel (18) is fixedly connected on a rotating shaft of the motor (1), one side of the middle part of the top end of the eccentric wheel (18) is fixedly connected with the bottom end of the steel needle (19), the top end of the steel needle (19) is fixedly connected with the middle part of the bottom end of the swing frame (20), the top end of the cylinder body (6) is provided with a lower valve plate (3), the lower valve plate (3) is equidistantly provided with three second mounting holes (13), a second umbrella valve (12) is arranged in each second mounting hole (13), three groups of second air holes (14) are equidistantly arranged on the lower valve plate (3), the top end of the lower valve plate (3) is provided with an upper valve plate (4), the middle part of the upper valve plate (4) is provided with a first mounting hole (10), a first umbrella valve (9) is arranged in the first mounting hole (10), the upper valve plate (4) is provided with three first air holes (11) at equal intervals.
2. A vacuum pump having a multi-layer noise reduction structure according to claim 1, wherein: the top of going up valve plate (4) is provided with upper cover (5), be provided with the exhaust hole on upper cover (5), the top of upper cover (5) is close to edge equidistance threaded connection has three second connecting bolt (22), just the bottom of second connecting bolt (22) runs through in proper order upper valve plate (4), lower valve plate (3), cylinder body (6) and extends to the inside of bottom (2).
3. A vacuum pump having a multi-layer noise reduction structure according to claim 1, wherein: the top equidistance threaded connection of motor (1) has two first connecting bolt (15), be provided with sealing washer (16) in the pivot of motor (1), the bottom middle part both sides of motor (1) all are provided with pin (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222041027.8U CN218266278U (en) | 2022-08-04 | 2022-08-04 | Negative pressure vacuum pump with multilayer noise reduction structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222041027.8U CN218266278U (en) | 2022-08-04 | 2022-08-04 | Negative pressure vacuum pump with multilayer noise reduction structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218266278U true CN218266278U (en) | 2023-01-10 |
Family
ID=84766318
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222041027.8U Active CN218266278U (en) | 2022-08-04 | 2022-08-04 | Negative pressure vacuum pump with multilayer noise reduction structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218266278U (en) |
-
2022
- 2022-08-04 CN CN202222041027.8U patent/CN218266278U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240605 Address after: 523000 Floor 1, Building G, Kairuifeng Industrial Park, No. 137, Changdong Road, Banshi Village, Changping Town, Dongguan City, Guangdong Province Patentee after: Dongguan Qianxin Precision Rubber & Plastic Products Co.,Ltd. Country or region after: China Address before: Room 202, Building 7, No. 137, Changdong Road, Changping Town, Dongguan City, Guangdong Province, 523000 Patentee before: Dongguan Qianxin Pump Valve Technology Co.,Ltd. Country or region before: China |