CN115143074A - Noise reduction and silencing vacuum pump - Google Patents
Noise reduction and silencing vacuum pump Download PDFInfo
- Publication number
- CN115143074A CN115143074A CN202210211494.2A CN202210211494A CN115143074A CN 115143074 A CN115143074 A CN 115143074A CN 202210211494 A CN202210211494 A CN 202210211494A CN 115143074 A CN115143074 A CN 115143074A
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- noise
- air outlet
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- chamber
- reducing
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- 230000030279 gene silencing Effects 0.000 title claims abstract description 33
- 230000009467 reduction Effects 0.000 title claims description 7
- 239000010985 leather Substances 0.000 claims abstract description 44
- 238000007789 sealing Methods 0.000 claims description 5
- 230000000694 effects Effects 0.000 claims description 3
- 210000001503 joint Anatomy 0.000 claims description 2
- 230000007704 transition Effects 0.000 abstract 1
- 230000006872 improvement Effects 0.000 description 9
- 230000005540 biological transmission Effects 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 241001417527 Pempheridae Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 210000000481 breast Anatomy 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 238000009461 vacuum packaging Methods 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B37/00—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00
- F04B37/10—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00 for special use
- F04B37/14—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00 for special use to obtain high vacuum
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/0027—Pulsation and noise damping means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/0027—Pulsation and noise damping means
- F04B39/0055—Pulsation and noise damping means with a special shape of fluid passage, e.g. bends, throttles, diameter changes, pipes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/10—Adaptations or arrangements of distribution members
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
- F04B39/122—Cylinder block
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B45/00—Pumps or pumping installations having flexible working members and specially adapted for elastic fluids
- F04B45/04—Pumps or pumping installations having flexible working members and specially adapted for elastic fluids having plate-like flexible members, e.g. diaphragms
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
Abstract
The invention belongs to the technical field of air pumps, and particularly discloses a noise-reducing and silencing vacuum pump which comprises a cylinder frame assembly and a plurality of leather cups, wherein the cylinder frame assembly is sleeved on the leather cups to form a vacuum chamber, a valve seat and a cover plate are sequentially overlapped on the leather cups, a plurality of leather cup covers are arranged on one end face of the valve seat to form a plurality of diaphragm chambers, the cover plate covers are arranged on the other end face of the valve seat to form a plurality of air outlet chambers and an air inlet chamber, the air inlet chamber is arranged in a circle around the air outlet chambers, the diaphragm chambers are movably communicated with the air inlet chamber on the cover plate, a silencing channel is arranged on an edge step of the air inlet chamber, the silencing channel penetrates through the valve seat and the cylinder body assembly and is communicated with the vacuum chamber, the diaphragm chambers are correspondingly and movably communicated with the air outlet chambers, and the air outlet chambers are communicated with air outlet holes of the cover plate. The vacuum pump can slow down the flow speed of the air flow in the pump, eliminate air whistling generated by air exhaust, reduce noise generated by transition deformation of the leather cup, prolong the service life and widen the use scene of the pump.
Description
Technical Field
The invention belongs to the technical field of air pumps, and particularly relates to a noise-reducing and silencing vacuum pump.
Background
The diaphragm pump includes an inflator pump and a vacuum pump. In the prior art, vacuum pumps are used in floor sweepers, vacuum packaging machines, breast pumps, etc. The inflator pump is widely applied to the automobile seat industry, when the pump works, the motor drives the transmission mechanism, the transmission mechanism drives the eccentric wheel to rotate and swing the swing frame, the leather cup reciprocates, air suction and exhaust are carried out, only one vacuum bin of the existing vacuum pump is in contact with the motor, water vapor is easy to remain, the service life of the motor is influenced, meanwhile, working noise is relatively very large, and the use experience of products is influenced.
Accordingly, the inventors have endeavored to design a vacuum pump to solve the above problems.
Disclosure of Invention
The invention aims to: the utility model provides a amortization vacuum pump of making an uproar falls, the amortization of can making an uproar falls improves life, promotes the product and uses experience.
In order to achieve the purpose, the invention adopts a technical scheme that:
the utility model provides a noise reduction and silencing vacuum pump, includes cylinder frame subassembly and a plurality of leather cups, cylinder frame subassembly cover is located a plurality ofly the drumming end of leather cups forms real empty room, and is a plurality of superpose in proper order on the leather cups is equipped with disk seat and apron, and is a plurality of the leather cup lid is located a terminal surface of disk seat forms a plurality of diaphragm chambers, the apron lid is located another terminal surface of disk seat forms a plurality of rooms of giving vent to anger and an air inlet chamber, it is a plurality of to admit air the chamber around a plurality of it is the round setting to give vent to anger the room, and is a plurality of the diaphragm chamber respectively through admission valve with admit air chamber activity intercommunication, the air inlet chamber with inlet port intercommunication on the apron, be equipped with the amortization passageway on the marginal step of air inlet chamber, the amortization passageway passes disk seat and cylinder body subassembly and with real empty room intercommunication.
As an improvement of the noise-reducing and silencing vacuum pump, the cover end of the cover plate extends to form an open caisson, the open caisson is communicated with the air outlet holes, and the air outlet chambers are arranged around the open caisson at intervals in a circle and are communicated with the open caisson.
As an improvement of the noise-reducing and silencing vacuum pump, a through groove is formed in the side wall, close to the open caisson, of the air outlet chamber, and the air outlet chamber is communicated with the open caisson through the through groove.
As an improvement of the noise-reducing and silencing vacuum pump, a sunk groove is formed in the valve seat, the plurality of air outlet valves are arranged in a circle around the sunk groove, the sunk groove gaps extend into the sunk groove, a diversion column is arranged in the sunk groove in a protruding mode, and the diversion column gaps extend into the sunk groove.
As an improvement of the noise-reducing and silencing vacuum pump, the cylinder frame assembly comprises a cylinder body and a machine frame, the cylinder body is sleeved on a plurality of leather cups and is positioned between the machine frame and the valve seat, the air inlet chamber is internally provided with a valve seat hole, the cylinder body is provided with a cylinder body hole, the cylinder body hole is communicated with the vacuum chamber, and the valve seat hole is in butt joint with the cylinder body hole and is communicated with the cylinder body hole to form the silencing passage.
As an improvement of the noise reduction and silencing vacuum pump of the present invention, a boss is convexly disposed at an edge of the air inlet chamber, the valve seat hole is located on the boss, and the valve seat hole is coaxial with the cylinder body hole.
As an improvement of the noise reduction and silencing vacuum pump, a cylinder is arranged on the inner wall of the rack, a rack hole is formed in the cylinder, and the rack hole is communicated with the cylinder body hole and is coaxially arranged.
As an improvement of the noise-reducing and silencing vacuum pump, a sealing ring is arranged between the cylinder body and the rack, a swing frame is accommodated in the vacuum chamber and sleeved on the leather cups, and a driving end of the swing frame is connected with the rack in a sealing manner.
As an improvement of the noise-reducing and silencing vacuum pump, a plurality of leather cups are integrally formed, the air outlet valve and the air inlet valve are umbrella valves, and the air inlet valves are movably inserted at corners of the valve seat.
As an improvement of the noise-reducing and silencing vacuum pump, snap springs are elastically clamped at corners of the cover plate, the valve seat and the cylinder frame assembly, the top ends of the snap springs are clamped into clamping grooves of the cover plate, and the bottoms of the clamping grooves are arranged in an arc-shaped concave manner.
Compared with the prior art, the noise-reducing and silencing vacuum pump has the advantages that the plurality of air outlet chambers and the air inlet chamber are formed at one end of the valve seat, the air inlet chamber is arranged around the plurality of air outlet chambers, the plurality of air outlet chambers are mutually separated, the flow speed of air flow coming out of the diaphragm chamber is slowed, and the air ringing sound generated by rapid air discharge is eliminated.
Description of the drawings:
FIG. 1 is an enlarged perspective view of a noise reducing and muffling vacuum pump of the present invention;
FIG. 2 is an enlarged, partially exploded perspective view of the noise reducing and muffling vacuum pump of the present invention;
FIG. 3 is an exploded perspective view of the noise reducing and muffling vacuum pump of the present invention;
FIG. 4 is an enlarged perspective view of the cover plate of the present invention;
FIG. 5 is an enlarged cross-sectional view of the noise reducing and muffling vacuum pump of the present invention;
FIG. 6 is another enlarged cross-sectional view of the noise-reducing and muffling vacuum pump of the present invention.
Illustration of the drawings:
1. the cover plate comprises a cover plate body 11, an air inlet hole, 12, an air outlet hole, 13, an air outlet chamber, 131, a through groove, 14, a sunk well, 15, a clamping groove, 16, an air inlet chamber, 2, an air outlet valve, 3, a valve seat, 31, an air inlet valve hole, 32, an air outlet valve hole, 33, a sunk groove, 331, a flow dividing column, 34, a valve seat hole, 4, an air inlet valve, 5, a leather cup, 51, a diaphragm chamber, 52, a leather cup hole, 6, a cylinder body, 61, a cylinder body hole, 7, a swing frame, 8, a rack, 81, a rack hole, 82, a sealing ring, 83, a motor, 831, an eccentric shaft, 84, a clamp spring, 85 and a vacuum chamber.
Detailed Description
The embodiments of the present invention will be described in detail with reference to the accompanying drawings, which are for reference and illustration only and are not to be construed as limiting the scope of the invention.
Referring to fig. 1 to 6, a noise reduction and silencing vacuum pump includes a valve seat 3, a cover plate 1, a plurality of leather cups 5 and a cylinder frame assembly, the cylinder frame assembly is sleeved on the swelling end of the leather cups 5 to form a vacuum chamber 85, the valve seat 3 and the cover plate 1 are sequentially stacked on the leather cups 5 from bottom to top, the leather cups 5 are covered on one end surface of the valve seat 3 to form a plurality of diaphragm chambers 51, the cover plate 1 is covered on the other end surface of the valve seat 3 to form a plurality of air outlet chambers 13 and an air inlet chamber 16, the air inlet chamber 16 is arranged in a circle around the air outlet chambers 13, the diaphragm chambers 51 are respectively and movably communicated with the air inlet chamber 16 through air inlet valves 4, the air inlet chamber 16 is communicated with the cylinder body 11 on the cover plate 1, the air inlet chambers 51 are respectively and movably communicated with the air outlet chambers 13 through air outlet valves 2, the air outlet chambers 13 are communicated with the air outlet holes 12 of the cover plate 1, a silencing channel is arranged on the edge step of the air inlet chamber 16, the silencing channel passes through the valve seat 3 and the cylinder body assembly and is communicated with the vacuum chamber 85, the vacuum chamber 5, the silencing vacuum chamber 85 is preferably communicated with the air inlet chambers 4 and the air outlet chambers 5, and the silencing channels 85, and the silencing channels are all the air inlet chambers 5.
Referring to fig. 3 and 5, in order to drive the leather cup 5 to swing, the cylinder frame assembly fixing cover is arranged on a motor 83, an output shaft of the motor 83 is obliquely arranged to form an eccentric shaft 831, the eccentric shaft 831 penetrates through a shell of the cylinder frame assembly and extends into the vacuum chamber 85, a swing frame 7 is sleeved on the eccentric shaft 831, the swing frame 7 is accommodated in the vacuum chamber 85, a driving end (namely, the eccentric shaft 831) of the swing frame 7 is hermetically connected with the cylinder frame assembly through a waterproof ring, four connecting ends of the swing frame 7 are respectively sleeved on the swinging ends of the four leather cups 5, and the motor 83 drives the eccentric shaft 831 to rotate to drive the swing frame 7 to eccentrically swing, so that the leather cup 5 swings back and forth, and the diaphragm chamber 51 is compressed.
Referring to fig. 3 and 5, the cylinder frame assembly includes a frame 8 and a cylinder body 6, the frame 8 is fixed on the end face of the motor 83, the inner wall of the frame 8 is provided with four cylinders, each cylinder is provided with a frame hole 81, the cylinder body 6 is overlapped and covered on the frame 8, the cylinder body 6 is hermetically connected with the frame 8 through an annular sealing ring 82, the upper end face of the cylinder body 6 is provided with four limiting protrusions, each limiting protrusion is provided with a cylinder hole 61 in a penetrating manner, the four cylinder holes 61 are communicated with the four frame holes 81 in a one-to-one manner and are coaxially arranged, and the cylinder body 6 is sleeved on the four leather cups 5 and is located between the frame 8 and the valve seat 3.
Referring to fig. 3 and 6, four leather cups 5 are integrally formed, the four leather cups 5 are covered on the valve seat 3 to form four separated diaphragm chambers 51, the fixed end covers of the four leather cups 5 are arranged on the cylinder body 6, the blowing ends of the four leather cups 5 respectively penetrate through the cylinder body 6 and are connected with the swing frame 7, the four leather cups 5, the cylinder body 6, the frame 8 and the motor 83 jointly enclose the vacuum chamber 85, a leather cup hole 52 is arranged between every two adjacent leather cups 5, and the four leather cup holes 52 are sleeved on four limiting bulges of the cylinder body 6 in a one-to-one correspondence manner to prevent the displacement of the leather cups 5.
Referring to fig. 2, fig. 3, fig. 5 and fig. 6, a sinking groove 33 is disposed at the center of the valve seat 3, a diversion column 331 is convexly disposed at the bottom of the sinking groove 33, four air outlet valves 2 are disposed in a circle around the sinking groove 33, and four air outlet valves 2 and four air inlet valves 4 are umbrella valves, wherein the four air outlet valves 2 are movably inserted into four air outlet jacks of the valve seat 3 from top to bottom, a set of air outlet valve holes 32 is disposed beside each air outlet jack, a set of air outlet valve holes 32 is disposed in a half circle around the corresponding air outlet jack, a head movable cover of the air outlet valve 2 is disposed on the corresponding set of air outlet valve holes 32, the four air inlet valves 4 are movably inserted into four air inlet jacks of the valve seat 3 from bottom to top, a set of air inlet valve holes 31 is disposed beside each air inlet jack, a set of air inlet valve holes 31 is disposed in a half circle around the corresponding air inlet jack, a head movable cover of the air inlet valve 4 is disposed at the bottom of the corresponding set of air inlet valve hole 31, in this embodiment, the four air inlet valves 4 are movably inserted into four corners of the valve seat 3, that are: four admission valves 4 and four groups of inlet valve holes 31 are around four outlet valves 2 and four groups of outlet jacks, protruding four bosss that are equipped with in the inlet chamber 16, four bosss are located the edge of disk seat 3, every boss all forms the step with the bottom of inlet chamber 16, is equipped with a disk seat hole 34 on every boss.
Referring to fig. 3 to 6, an air inlet 11 and an air outlet 12 are disposed at the top of the cover plate 1, an annular open caisson 14 extends from the center of the cover closing end of the cover plate 1, the open caisson 14 is coaxial and communicated with the air outlet 12, the cover plate 1 covers the valve seat 3 to form four air outlet chambers 13 and one air inlet chamber 16, the four air outlet chambers 13 are separated from each other, each air outlet chamber 13 is circular, the four air outlet chambers 13 surround the open caisson 14 and are arranged at intervals in a circle and communicated with the open caisson 14, specifically, a through groove 131 is disposed on the sidewall of each air outlet chamber 13 close to the open caisson 14, each air outlet chamber 13 is communicated with the open caisson 14 through the through groove 131, three positioning columns and a half groove are disposed at the edge of the cover closing surface of the cover plate 1, when the cover plate 1 covers the valve seat 3, the half groove of the cover plate 1 is communicated with the valve seat hole 34 directly below, the three positioning columns on the cover closing surface of the cover plate 1 are in positioning fit with the other three valve seat holes 34 on the valve seat 3, the cylinder hole 61 is coaxially communicated with the valve seat hole 61, the cylinder hole 81, the four air distribution cylinder holes are communicated with the air distribution cylinder support cylinder, the air distribution cylinder 81, and the four air distribution cylinder holes 85 are disposed at the bottom of the open caisson 14.
Referring to fig. 2 and 5, the cover plate 1, the valve seat 3, the cylinder 6 and the frame 8 are elastically clamped with U-shaped clamp springs 84 at four corners respectively, the top of each clamp spring 84 is bent and clamped into a clamp groove 15 at the corner of the top of the cover plate 1, and the bottom of the clamp groove 15 is arc-shaped and concave.
Referring to fig. 1 to 6, the working principle of the noise-reducing and silencing vacuum pump of the present invention is: when the motor 83 drives the four leather cups 5 to compress the four diaphragm chambers 51 through the swing frame 7, on one hand, the gas in the air inlet chamber 16 is sucked into the vacuum chamber 85 through the silencing channel, on the other hand, the gas in the four diaphragm chambers 51 pushes the four air outlet valves 2 upwards through the four sets of air outlet valve holes 32, the gas in the four diaphragm chambers 51 respectively enters the four air outlet chambers 13, the gas in the four air outlet chambers 13 respectively passes through the corresponding through slots 131 to converge at the sunk well 14, and is discharged from the air outlet holes 12 after being shunted by the shunting column 331, when the motor 83 drives the four leather cups 5 to expand the four diaphragm chambers 51 through the swing frame 7, on the one hand, the gas in the vacuum chamber 85 is pressed into the air inlet chamber 16 through the silencing channel, on the other hand, the external gas enters the air inlet chamber 16 through the air inlet hole 11, the gas in the air inlet chamber 16 respectively pushes the four air inlet valves 4 downwards through the four sets of air inlet valve holes 31, and enters the four diaphragm chambers 51 to form four air flows, so that the four air flows are formed, the four diaphragm chambers 51, the volume of the four diaphragm chambers 51 is increased, and the four leather cups 5 are continuously blown in a silencing mode, and the air inlet and the four diaphragm chambers 51 can be mute.
The noise-reducing and silencing vacuum pump has the following beneficial technical effects:
1. when the pump works, the four diaphragm chambers 51 and the vacuum chamber 85 simultaneously act on the leather cup 5, so that the leather cup 5 is balanced in tension and contraction, noise caused by excessive deformation is reduced, and the flow is increased;
2. the air inlet chamber 16 is communicated with the vacuum chamber 85 through a silencing passage, meanwhile, the valve seat hole 34 of the air inlet chamber 16 is positioned on the boss of the air inlet chamber 16 to form a step, and in the working process of the pump, residual water can enter the vacuum chamber 85, but can be sucked away by the air inlet chamber 16 in time and directly enter the diaphragm chamber 51 and is discharged to the outside through the air outlet chamber 13 and the air outlet hole 12, so that the possibility that the motor 83 is contacted with the residual liquid is avoided, the service life of the motor 83 is greatly prolonged, and meanwhile, the use scene of the vacuum pump is widened;
3. each diaphragm chamber 51 corresponds to one air outlet chamber 13, the flow velocity of air flow which just comes out of the diaphragm chamber 51 is slowed down, and the air flow is discharged from the air outlet hole 12 after being converged by the middle open caisson 14, so that air whistle generated by quick air comes out is eliminated;
4. the diversion column 331 is arranged at the inlet of the open caisson 14, so that the outflow speed of gas is reduced, the problem that the gas flow generates vortex at the open caisson 14 is solved, and the gas is prevented from rapidly passing through the open caisson 14 after being sprayed out from the diaphragm chamber 51 to generate a whistling.
The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the present invention, therefore, the present invention is not limited by the appended claims.
Claims (10)
1. The utility model provides a noise reduction and silencing vacuum pump, includes cylinder frame subassembly and a plurality of leather cups, cylinder frame subassembly cover is located a plurality ofly the drumming end of leather cups forms real empty room, and is a plurality of superpose in proper order on the leather cups is equipped with disk seat and apron, and is a plurality of the leather cup lid is located a terminal surface of disk seat forms a plurality of diaphragm chambers, its characterized in that, the apron lid is located another terminal surface of disk seat forms a plurality of air outlet chambers and an air inlet chamber, the air inlet chamber is around a plurality of the air outlet chamber is the round setting, and is a plurality of the diaphragm chamber respectively through admission valve with air inlet chamber activity intercommunication, the air inlet chamber with inlet port intercommunication on the apron, be equipped with the amortization passageway on the edge step of air inlet chamber, the amortization passageway pass disk seat and cylinder body subassembly and with real empty room intercommunication, it is a plurality of the diaphragm chamber respectively through the air outlet valve with a plurality of air outlet chamber one-to-one intercommunication, a plurality of air outlet chamber with the venthole intercommunication of apron.
2. The noise-reducing and noise-reducing vacuum pump according to claim 1, wherein a sunk well extends from the covering end of the cover plate, the sunk well is communicated with the air outlet hole, and the air outlet chambers are arranged around the sunk well at intervals in a circle and are communicated with the sunk well.
3. The noise-reducing and noise-reducing vacuum pump according to claim 2, wherein a through groove is formed in a side wall of the air outlet chamber close to the open caisson, and the air outlet chamber is communicated with the open caisson through the through groove.
4. The noise-reducing and noise-reducing vacuum pump according to claim 2, wherein a sunken groove is formed in the valve seat, the plurality of gas outlet valves are arranged in a circle around the sunken groove, the sunk well gaps extend into the sunken groove, a diversion column is arranged in the sunken groove in a protruding mode, and the diversion column gaps extend into the sunk well.
5. The noise-reducing and noise-reducing vacuum pump according to claim 1, wherein the cylinder frame assembly comprises a cylinder and a frame, the cylinder is sleeved on the plurality of leather cups and located between the frame and the valve seat, a valve seat hole is formed in the intake chamber, a cylinder hole is formed in the cylinder, the cylinder hole is communicated with the vacuum chamber, and the valve seat hole is in butt joint with the cylinder hole and is communicated with the cylinder hole to form the noise-reducing passage.
6. The noise-reducing and silencing vacuum pump according to claim 5, wherein a boss is protruded from an edge of the inlet chamber, the valve seat hole is located on the boss, and the valve seat hole is coaxial with the cylinder hole.
7. The noise-reducing and noise-reducing vacuum pump according to claim 5, wherein a cylinder is disposed on an inner wall of the frame, a frame hole is disposed on the cylinder, and the frame hole is communicated with the cylinder hole and is disposed coaxially therewith.
8. The noise-reducing and silencing vacuum pump according to claim 5, wherein a seal ring is arranged between the cylinder body and the frame, a swing frame is accommodated in the vacuum chamber, the swing frame is sleeved on the leather cups, and a driving end of the swing frame is connected with the frame in a sealing manner.
9. The noise-reducing and noise-reducing vacuum pump according to claim 1, wherein the leather cups are integrally formed, the air outlet valve and the air inlet valve are umbrella valves, and the air inlet valves are movably inserted at corners of the valve seats.
10. The vacuum pump of claim 1, wherein a snap spring is elastically snapped at the corner of the cover plate, the valve seat and the cylinder frame assembly, the top end of the snap spring is snapped into a snap groove of the cover plate, and the bottom of the snap groove is in an arc shape and is recessed inwards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210211494.2A CN115143074A (en) | 2022-03-05 | 2022-03-05 | Noise reduction and silencing vacuum pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210211494.2A CN115143074A (en) | 2022-03-05 | 2022-03-05 | Noise reduction and silencing vacuum pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115143074A true CN115143074A (en) | 2022-10-04 |
Family
ID=83405391
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210211494.2A Pending CN115143074A (en) | 2022-03-05 | 2022-03-05 | Noise reduction and silencing vacuum pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115143074A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013002347A (en) * | 2011-06-15 | 2013-01-07 | Tada Plastic Kogyo Kk | Diaphragm pump for fluid |
| CN203570551U (en) * | 2013-11-19 | 2014-04-30 | 厦门坤锦电子科技有限公司 | Mini vacuum pump |
| US20160040664A1 (en) * | 2013-10-25 | 2016-02-11 | Xiamen Koge Micro Tech Co., Ltd. | Valve clack and air pump having same |
| CN108119346A (en) * | 2017-12-19 | 2018-06-05 | 深圳市时光电子有限公司 | Low-noise air pump |
| CN213540663U (en) * | 2020-10-29 | 2021-06-25 | 深圳市龙壹科技有限公司 | Miniature vacuum air pump |
| CN214092213U (en) * | 2020-09-07 | 2021-08-31 | 东莞动源机电科技有限公司 | Air pump with sound attenuation structure |
| CN215805080U (en) * | 2021-07-29 | 2022-02-11 | 东莞市精准泵业有限公司 | Diaphragm pump for preventing fluid from being discharged out of way |
-
2022
- 2022-03-05 CN CN202210211494.2A patent/CN115143074A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013002347A (en) * | 2011-06-15 | 2013-01-07 | Tada Plastic Kogyo Kk | Diaphragm pump for fluid |
| US20160040664A1 (en) * | 2013-10-25 | 2016-02-11 | Xiamen Koge Micro Tech Co., Ltd. | Valve clack and air pump having same |
| CN203570551U (en) * | 2013-11-19 | 2014-04-30 | 厦门坤锦电子科技有限公司 | Mini vacuum pump |
| CN108119346A (en) * | 2017-12-19 | 2018-06-05 | 深圳市时光电子有限公司 | Low-noise air pump |
| CN214092213U (en) * | 2020-09-07 | 2021-08-31 | 东莞动源机电科技有限公司 | Air pump with sound attenuation structure |
| CN213540663U (en) * | 2020-10-29 | 2021-06-25 | 深圳市龙壹科技有限公司 | Miniature vacuum air pump |
| CN215805080U (en) * | 2021-07-29 | 2022-02-11 | 东莞市精准泵业有限公司 | Diaphragm pump for preventing fluid from being discharged out of way |
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