CN211692771U - Noise reduction type micro piston pump - Google Patents
Noise reduction type micro piston pump Download PDFInfo
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- CN211692771U CN211692771U CN201922313329.4U CN201922313329U CN211692771U CN 211692771 U CN211692771 U CN 211692771U CN 201922313329 U CN201922313329 U CN 201922313329U CN 211692771 U CN211692771 U CN 211692771U
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- umbrella
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- air inlet
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Abstract
The utility model provides a type of making an uproar miniature piston pump falls. The valve comprises an upper cover, a valve body, a bottom cover and a motor, wherein an eccentric wheel is arranged in a sealed cavity formed by the valve body and the bottom cover, a rubber diaphragm and a pair of umbrella blocks are also arranged in the valve body, and the rubber diaphragm drives the umbrella blocks to move up and down; the upper cover is internally provided with an air chamber which is divided into an air inlet chamber and an air outlet chamber by a partition plate from the middle and is respectively communicated with an air inlet and an air outlet which are arranged on the side surface of the upper cover; the air inlet chamber and the air outlet chamber are both filled with sponge, and holes for the movement of the umbrella nuts are reserved in the middle of the sponge; the umbrella T comprises an air outlet umbrella T and an air inlet umbrella T, the two umbrella T are arranged in opposite directions, and when the umbrella T moves, one umbrella T is opened and the other umbrella T is closed. The utility model discloses miniature piston pump simple structure, job stabilization, durable can reduce the noise in the course of the work.
Description
Technical Field
The utility model belongs to the technical field of the pump body technique and specifically relates to a type of making an uproar miniature piston pump falls is related to.
Background
The miniature piston pump can output compressed air, has the advantages of small volume, low noise, low power consumption, easy operation, convenient carrying and the like, and is commonly used for small household white appliances. The miniature piston pump is widely applied to products such as electric breast pumps, personal care equipment, massage equipment and the like, and generally comprises a motor, an eccentric wheel, a connecting rod, a diaphragm, a valve plate, a diced umbrella and an upper cover.
At present, most of miniature piston pumps on the market adopt diaphragm type air pumps, when the air pumps operate, the motor can drive the diaphragm assembly to do reciprocating vibration through the connecting rod assembly, the volume of a cavity enclosed by the diaphragm assembly and one side of the valve seat is changed, and the functions of air suction and air inflation are realized through the matching of the air inlet valve plate and the air outlet valve plate.
However, the micro piston pump generally has the disadvantage of high noise due to the problems of mechanical motion friction and vibration in the use process.
Disclosure of Invention
The utility model provides a to prior art not enough, the utility model provides a simple structure, job stabilization, durable can reduce the type of making an uproar miniature piston pump of falling of the noise in the working process.
In order to achieve the purpose, the utility model provides a noise reduction type micro piston pump, which comprises an upper cover, a valve body, a bottom cover and a motor, wherein an eccentric wheel is arranged in a sealing cavity formed by the valve body and the bottom cover, a rubber diaphragm and a pair of umbrella blocks are also arranged in the valve body, and the rubber diaphragm drives the umbrella blocks to move up and down; the air chamber is divided into an air inlet chamber and an air outlet chamber by a partition plate from the middle, and the air inlet chamber and the air outlet chamber are respectively communicated with an air inlet and an air outlet which are arranged on the side surface of the upper cover; the air inlet chamber and the air outlet chamber are both filled with sponge, and holes for the movement of the umbrella nuts are reserved in the middle of the sponge; the umbrella T comprises an air outlet umbrella T and an air inlet umbrella T, the two umbrella T are arranged in opposite directions, and when the umbrella T moves, one umbrella T is opened and the other umbrella T is closed.
In the above scheme, the valve body is internally provided with a connecting rod, one end of the connecting rod is hinged to the wheel edge of the eccentric wheel, the other end of the connecting rod is connected with a connecting rod cap, the connecting rod cap is of a disc-shaped structure and is tightly attached to the rubber diaphragm from the other direction, the connecting rod penetrates through the rubber diaphragm to be connected with the center of the connecting rod cap, and the connecting rod cap is pulled to drive the rubber diaphragm to reciprocate.
In the scheme, a sealing ring is arranged between the valve body and the upper cover, and the shape of the sealing ring is matched with the shape of the outer contour of the sponge.
In the scheme, the valve body is internally provided with the baffle which separates the air chamber from the rubber diaphragm, the baffle is provided with two groups of through holes, and each group corresponds to one umbrella T.
In the scheme, the through holes are densely arranged in a plurality of holes and are arranged into a circle, and the range after arrangement does not exceed the diameter of the diced umbrella.
The utility model discloses miniature piston pump theory of operation: in the process of reciprocating motion of the rubber diaphragm, when the rubber diaphragm moves outwards, the air outlet parachute D is closed under the action of self weight and pressure difference, and the air inlet parachute D is opened under the action of pressure difference to suck air into the pump cavity. When the rubber diaphragm moves inwards, the pressure in the pump cavity rises, the air inlet umbrella is closed, and the air outlet umbrella is opened to discharge air. Because the sponge buffer body is added in the air chamber of the upper cover, the impact on the air chamber when the umbrella T moves can be greatly reduced, and the noise can be reduced.
The utility model has the advantages that:
the utility model discloses miniature piston pump simple structure, job stabilization, durable can reduce the noise in the course of the work.
Drawings
Fig. 1 is an exploded view of the overall structure of an embodiment of the present invention;
FIG. 2 is an exploded view of the upper cover and the valve body according to the embodiment of the present invention;
in the figure: 1 upper cover, 2 valve body, 3 bottom cover, 4 motor, 5 eccentric wheel, 6 rubber diaphragm, 7 connecting rod,
8 air inlet chamber, 9 air outlet chamber, 10 air inlet, 11 air outlet, 12 sponge, 13 air outlet diced umbrella,
14 air inlet umbrella blocks, 15 connecting rod caps, 16 sealing rings and 17 baffles.
Detailed Description
The noise reduction type micro piston pump of the present invention as shown in fig. 1 and fig. 2 comprises an upper cover 1, a valve body 2, a bottom cover 3 and a motor 4, wherein an eccentric wheel 5 is arranged in a sealed cavity formed by the valve body 2 and the bottom cover 3, a rubber diaphragm 6 and a pair of umbrella blocks are further arranged in the valve body 2, and the rubber diaphragm 6 drives the umbrella blocks to move up and down; the upper cover 1 is internally provided with an air chamber which is divided into an air inlet chamber 8 and an air outlet chamber 9 by a partition plate from the middle and is respectively communicated with an air inlet 10 and an air outlet 11 which are arranged on the side surface of the upper cover 1; the air inlet chamber 8 and the air outlet chamber 9 are both filled with sponge 12, and a hole for the movement of the umbrella nut is reserved in the middle of the sponge 12; the umbrella T comprises an air outlet umbrella T13 and an air inlet umbrella T14, the two umbrella T are arranged in opposite directions, and when the umbrella T moves, one umbrella T is opened and the other umbrella T is closed.
In this embodiment, the transmission mechanism includes a connecting rod 7, one end of the connecting rod 7 is hinged to the rim of the eccentric wheel 5, the other end is connected with a connecting rod cap 15, the connecting rod cap 18 is a disc-shaped structure and is tightly attached to the rubber diaphragm 6 from the other direction, the connecting rod 7 penetrates through the rubber diaphragm 6 and is connected to the center of the connecting rod cap 15, and the connecting rod cap 15 is pulled to drive the rubber diaphragm 6 to reciprocate.
In this embodiment, a sealing ring 16 is disposed between the valve body 2 and the upper cover 1, and the shape of the sealing ring 16 matches with the outer contour shape of the sponge 12.
In this embodiment, a baffle 17 is arranged inside the valve body 2 to separate the air chamber from the rubber diaphragm 6, and two sets of through holes are arranged on the baffle 17, wherein each set corresponds to one umbrella T. The through holes are densely arranged in a porous mode and are arranged into a circle, and the range after arrangement does not exceed the diameter of the diced umbrella.
The embodiment of the utility model provides a during operation, at rubber diaphragm reciprocating motion's in-process, when rubber diaphragm outwards moves, go out the umbrella butyl and close under dead weight and pressure differential effect, the umbrella butyl that admits air opens under pressure differential's effect, inhales the pump chamber with gas. When the rubber diaphragm moves inwards, the pressure in the pump cavity rises, the air inlet umbrella is closed, and the air outlet umbrella is opened to discharge air. Because the sponge buffer body is added in the air chamber of the upper cover, the impact on the air chamber when the umbrella T moves can be greatly reduced, and the noise can be reduced.
The above examples are only one of the preferred embodiments of the present invention, and the general changes and substitutions performed by those skilled in the art within the technical scope of the present invention are included in the protection scope of the present invention.
Claims (5)
1. The noise reduction type micro piston pump comprises an upper cover, a valve body, a bottom cover and a motor, wherein an eccentric wheel is arranged in a sealed cavity formed by the valve body and the bottom cover, a rubber diaphragm and a pair of umbrella blocks are also arranged in the valve body, and the rubber diaphragm drives the umbrella blocks to move up and down; the air chamber is divided into an air inlet chamber and an air outlet chamber by a partition plate from the middle, and the air inlet chamber and the air outlet chamber are respectively communicated with an air inlet and an air outlet which are arranged on the side surface of the upper cover; the air inlet chamber and the air outlet chamber are both filled with sponge, and holes for the movement of the umbrella nuts are reserved in the middle of the sponge; the umbrella T comprises an air outlet umbrella T and an air inlet umbrella T, the two umbrella T are arranged in opposite directions, and when the umbrella T moves, one umbrella T is opened and the other umbrella T is closed.
2. The noise reduction type micro piston pump as claimed in claim 1, wherein a connecting rod is further provided in the valve body, one end of the connecting rod is hinged to the rim of the eccentric wheel, the other end of the connecting rod is connected to a connecting rod cap, the connecting rod cap is a disk-shaped structure and is tightly attached to the rubber diaphragm from the other direction, the connecting rod penetrates through the rubber diaphragm to be connected to the center of the connecting rod cap, and the connecting rod cap is pulled to drive the rubber diaphragm to reciprocate.
3. The noise reduction type micro piston pump as claimed in claim 1, wherein a sealing ring is disposed between the valve body and the upper cover, and the shape of the sealing ring is matched with the shape of the outer contour of the sponge.
4. The noise-reducing micro piston pump as claimed in claim 1, wherein a baffle is disposed inside the valve body to separate the air chamber from the rubber diaphragm, and two sets of through holes are disposed on the baffle, each set corresponding to one of the plurality of buttons.
5. The noise-reducing micro piston pump as claimed in claim 4, wherein the through holes are densely arranged in a circle, and the range after arrangement does not exceed the diameter of the diced umbrella.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922313329.4U CN211692771U (en) | 2019-12-20 | 2019-12-20 | Noise reduction type micro piston pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922313329.4U CN211692771U (en) | 2019-12-20 | 2019-12-20 | Noise reduction type micro piston pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211692771U true CN211692771U (en) | 2020-10-16 |
Family
ID=72793154
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922313329.4U Active CN211692771U (en) | 2019-12-20 | 2019-12-20 | Noise reduction type micro piston pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211692771U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115126685A (en) * | 2021-03-24 | 2022-09-30 | 研能科技股份有限公司 | Thin gas transmission device |
-
2019
- 2019-12-20 CN CN201922313329.4U patent/CN211692771U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115126685A (en) * | 2021-03-24 | 2022-09-30 | 研能科技股份有限公司 | Thin gas transmission device |
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