CN219827097U - Negative pressure pump with noise reduction function - Google Patents
Negative pressure pump with noise reduction function Download PDFInfo
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- CN219827097U CN219827097U CN202320437275.6U CN202320437275U CN219827097U CN 219827097 U CN219827097 U CN 219827097U CN 202320437275 U CN202320437275 U CN 202320437275U CN 219827097 U CN219827097 U CN 219827097U
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- 230000009467 reduction Effects 0.000 title claims description 15
- 239000003292 glue Substances 0.000 claims abstract description 15
- 238000001125 extrusion Methods 0.000 claims abstract description 4
- 238000007789 sealing Methods 0.000 claims description 16
- 229910000831 Steel Inorganic materials 0.000 claims description 11
- 239000010959 steel Substances 0.000 claims description 11
- 230000005540 biological transmission Effects 0.000 claims description 5
- 230000006872 improvement Effects 0.000 description 6
- 230000009471 action Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
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- Reciprocating Pumps (AREA)
Abstract
The utility model provides a negative pressure pump with function of making an uproar, includes the base, the base lower part is equipped with the motor, the top of base is equipped with the air outlet cover, it is equipped with two at least air cock to give vent to anger to cover, be equipped with the tower type in the base and glue the piece, be equipped with the cylinder on the base, the tower type is glued the piece and is located the cylinder inside, be equipped with the eccentric wheel in the base, the output shaft and the eccentric wheel of motor are connected, the eccentric wheel passes through drive assembly and is connected with the tower type glues the piece, the tower type glues the piece and has the air chamber with give vent to anger between the cover, be equipped with three gas circuits in the air chamber, an air circuit corresponds an air chamber, air chamber and air cock intercommunication, the inside air flue of making an uproar that falls that is formed with of air cock, the air flue of making an uproar communicates with the gas circuit, the motor passes through the eccentric wheel and drives drive assembly extrusion tower type and glues the piece. The utility model can prolong the air path for the second time to reduce noise, thereby solving the problem of loud sound.
Description
Technical Field
The utility model relates to a miniature negative pressure pump, in particular to a negative pressure pump with a noise reduction function.
Background
The micro vacuum pump is provided with one suction nozzle and one exhaust nozzle, and can continuously form vacuum or negative pressure (relative vacuum) at the inlet, and micro positive pressure is formed at the exhaust nozzle. The miniature vacuum pump is called a small negative pressure pump because negative pressure is formed at the inlet; the simple working principle is as follows: the motor moves circularly, the diaphragm inside the pump moves reciprocally through the mechanical device, so that the air in the pump cavity is compressed and stretched to form negative pressure, the pressure difference is generated between the air extraction opening and the external atmospheric pressure, and the air is sucked into the pump cavity and then discharged from the air outlet under the action of the pressure difference.
The existing micro vacuum pump generates sound due to the change of air pressure at 0 mmHg-maximum pressure (-450 mmHg), the inner tower bag extrudes air flow to the air chamber, the umbrella surface is opened at a certain pressure, the air path is relatively single, and the sound is large.
Disclosure of Invention
In order to solve the technical problems, the utility model provides a negative pressure pump with a noise reduction function.
In order to solve the technical problems, the utility model adopts the following technical scheme:
the utility model provides a negative pressure pump with function of making an uproar, includes the base, the base lower part is equipped with the motor, the top of base is equipped with the air outlet cover, it is equipped with two at least air cock to give vent to anger to cover, be equipped with the tower type in the base and glue the piece, be equipped with the cylinder on the base, the tower type is glued the piece and is located the cylinder inside, be equipped with the eccentric wheel in the base, the output shaft and the eccentric wheel of motor are connected, the eccentric wheel passes through drive assembly and is connected with the tower type glues the piece, the tower type glues the piece and has the air chamber with give vent to anger between the cover, be equipped with three gas circuits in the air chamber, an air circuit corresponds an air chamber, air chamber and air cock intercommunication, the inside air flue of making an uproar that falls that is formed with of air cock, the air flue of making an uproar communicates with the gas circuit, the motor passes through the eccentric wheel and drives drive assembly extrusion tower type and glues the piece.
As a further improvement, the transmission assembly comprises a steel needle and a connecting rod, wherein one end of the steel needle is connected with the eccentric wheel, the other end of the steel needle is connected with the connecting rod, the connecting rod is provided with an upper rod and a lower rod, and the upper rod is used for extruding the tower-type rubber piece.
As a further improvement, the air chamber comprises a rubber seat and a sealing ring, and the sealing ring is attached between the rubber seat and the air outlet cover.
As a further improvement, the air outlet cover is locked and installed with the base through screws.
As a further improvement, a sealing ring is arranged at the assembling position of the motor and the base.
As a further improvement, the upper rod of the connecting rod is located on one side of the lower rod.
According to the utility model, the convex air tap is additionally arranged, the noise reduction air passage is formed in the air tap, and the noise reduction is secondarily prolonged through the air passage, so that the problem of loud sound is solved.
Drawings
FIG. 1 is a schematic cross-sectional view of the present utility model;
fig. 2 is a schematic top view of the present utility model.
Reference numerals:
the device comprises a motor 1, a base 2, an eccentric wheel 3, an air outlet cover 4, an air cylinder 5, an air chamber 6, a finished screw 7, an air tap 8, a sealing ring 9, a rubber seat 10, a tower-shaped rubber piece 11, a connecting rod 12, a steel needle 13 and a sealing ring 14.
Detailed Description
Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present utility model and are not to be construed as limiting the present utility model.
In the description of the present utility model, it should be understood that if there are terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., the indicated azimuth or positional relationship is based on the azimuth or positional relationship shown in the drawings, it is merely for convenience of description and simplification of the description, and does not indicate or imply that the indicated apparatus or element must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In the description of the present utility model, it should be noted that the terms "mounted," "connected," and "coupled" are to be construed broadly, as well as, for example, fixedly coupled, detachably coupled, or integrally coupled, unless otherwise specifically indicated and defined. Either mechanically or electrically. Can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
As shown in fig. 1-2, a negative pressure pump with noise reduction function comprises a base 2, the lower part of the base 2 is provided with a motor 1, the top of the base 2 is provided with an air outlet cover 4, at least two air nozzles 8 are arranged on the air outlet cover 4, a tower-shaped rubber piece 11 is arranged in the base 2, an air cylinder 5 is arranged on the base 2, the tower-shaped rubber piece 11 is positioned in the air cylinder 5, an eccentric wheel 3 is arranged in the base 2, an output shaft of the motor 1 is connected with the eccentric wheel 3, the eccentric wheel 3 is connected with the tower-shaped rubber piece through a transmission component, the tower-shaped rubber piece 11 is provided with three air bags, an air chamber 6 is arranged between the tower-shaped rubber piece and the air outlet cover, three air channels are arranged in the air chamber 6, one air channel corresponds to one air bag, the air chamber is communicated with the air nozzles, a noise reduction air channel is formed in the air nozzle 8, the noise reduction air channel is communicated with the air channel, and the motor 1 drives the transmission component to extrude the tower-shaped rubber piece through the eccentric wheel 3. The motor drives the eccentric wheel to rotate, and the eccentric wheel eccentrically rotates, so that three air bags of the tower-type rubber piece can be extruded at intervals, and the air in the corresponding path is discharged. In this embodiment, two air nozzles are provided for air inlet and outlet. The cylinder is used for ensuring the normal action of the inner tower type glue piece.
The transmission assembly comprises a steel needle 13 and a connecting rod 12, one end of the steel needle 13 is connected with the eccentric wheel 3, the other end of the steel needle is connected with the connecting rod 12, the connecting rod 12 is provided with an upper rod and a lower rod, and the upper rod is used for extruding the tower-type rubber piece. When the eccentric wheel rotates, the steel needle drives the connecting rod to swing, and the upper rod of the connecting rod extrudes different areas of the tower-type rubber piece.
The air chamber comprises a rubber seat 10 and a sealing ring 9, wherein the sealing ring 9 is attached between the rubber seat 10 and the air outlet cover, and the sealing ring ensures that no air leakage occurs in the air conveying process.
The air outlet cover is locked and installed with the base 2 through a screw 7. The assembly place of the motor 1 and the base 2 is provided with a sealing ring.
When the device works, the motor operates to drive the eccentric wheel to rotate, the connecting rod is driven by the steel needle to act, one of the air bags of the tower-type rubber piece is extruded by the connecting rod, the volume extrusion of the air bag is changed, the air pressure difference is generated, the flow direction of gas is controlled by the pressure difference, namely, when the rubber tower-type rubber piece is extruded, the gas is extruded from the air bag of the tower-type rubber piece to be discharged into the air chamber, namely, the rubber seat and the sealing ring, the gas is extruded to the air outlet cover through the rubber seat and the sealing ring, and the gas enters into the noise reduction air passage in the air nozzle and flows out through the air nozzle; when the tower-type rubber piece is pulled back by the connecting rod, external air enters from the air tap, reaches the rubber seat and the sealing ring, then enters the air bags of the tower-type rubber piece, and circularly moves, and the total of three air bags) is circularly moved, and the sealing ring is opened at a certain pressure and then reaches the corresponding air tap, so that flexible air inlet and air outlet from the two air taps can be realized, and the air suction and inflation effects are generated.
It should be noted that, the foregoing is only a preferred embodiment of the present utility model, and the present utility model is not limited to the foregoing embodiment, but it should be understood that although the present utility model has been described in detail with reference to the embodiment, it is possible for those skilled in the art to make modifications to the technical solutions described in the foregoing embodiment, or to make equivalent substitutions for some technical features thereof, but any modifications, equivalent substitutions, improvements and the like within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (6)
1. The utility model provides a negative pressure pump with function of making an uproar, includes the base, a serial communication port, the base lower part is equipped with the motor, the top of base is equipped with out the air cap, it is equipped with two at least air cock to go out the air cap, be equipped with tower type glue the piece in the base, be equipped with the cylinder on the base, tower type glue the piece and be located inside the cylinder, be equipped with the eccentric wheel in the base, the output shaft and the eccentric wheel of motor are connected, the eccentric wheel passes through drive assembly and is connected with tower type glue the piece, tower type glue the piece has three air bags, have the air chamber between tower type glue piece and the air cap that gives vent to anger, be equipped with three gas circuits in the air chamber, an air chamber corresponds an air bag, air chamber and air cock intercommunication, air cock inside is formed with the air flue of making an uproar that falls, the air flue and gas circuit intercommunication, the motor passes through eccentric wheel drive assembly extrusion tower type glue the piece.
2. The negative pressure pump with noise reduction function according to claim 1, wherein the transmission assembly comprises a steel needle and a connecting rod, one end of the steel needle is connected with the eccentric wheel, the other end is connected with the connecting rod, the connecting rod is provided with an upper rod and a lower rod, and the upper rod is used for extruding the tower type rubber piece.
3. The negative pressure pump with noise reduction function according to claim 1, wherein the air chamber comprises a rubber seat and a sealing ring, and the sealing ring is attached between the rubber seat and the air outlet cover.
4. The negative pressure pump with noise reduction function according to claim 1, wherein the air outlet cover is mounted by locking with the base through screws.
5. The negative pressure pump with noise reduction function according to claim 1, wherein a sealing ring is provided at an assembling position of the motor and the base.
6. The negative pressure pump with noise reduction function according to claim 2, wherein an upper rod of the connecting rod is located at a side of a lower rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320437275.6U CN219827097U (en) | 2023-03-09 | 2023-03-09 | Negative pressure pump with noise reduction function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320437275.6U CN219827097U (en) | 2023-03-09 | 2023-03-09 | Negative pressure pump with noise reduction function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219827097U true CN219827097U (en) | 2023-10-13 |
Family
ID=88280425
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320437275.6U Active CN219827097U (en) | 2023-03-09 | 2023-03-09 | Negative pressure pump with noise reduction function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219827097U (en) |
-
2023
- 2023-03-09 CN CN202320437275.6U patent/CN219827097U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |