CN217538965U - Large-flow micro pump and pumping assembly thereof - Google Patents

Abstract

The utility model relates to a large-flow micro pump and a pumping component thereof, the pumping component comprises an upper cover, a first flow passage and a second flow passage, wherein the first flow passage and the second flow passage extend to the bottom of the upper cover; the communicating piece is connected with the upper cover, a first cavity communicated with the first flow channel and a second cavity communicated with the second flow channel are formed between the upper cover and the upper cover, and the communicating piece is provided with a plurality of first through holes communicated with the first cavity and second through holes communicated with the second cavity; the first movable cap penetrates through the first through hole and is provided with a first blocking part, the first blocking part is positioned on one side of the first through hole, which is far away from the first cavity, and the first blocking part can seal or open each first through hole; and the second movable cap penetrates through the second through hole and is provided with a second plugging part, the second plugging part is positioned on one side of the second through hole close to the second cavity, and the second plugging part can seal or open each second through hole. The pumping assembly can easily and quickly open the pumping channel formed by the through holes through the movable cap, so that the flow of gas or water flow is increased.

Description

Large-flow micro pump and pumping assembly thereof

Technical Field

The utility model relates to a technical field of bleed, suction pump especially relates to large-traffic micropump and pump assembly thereof.

Background

Referring to fig. 1 and 2, a conventional micro pump 100 'is generally used to pump liquid or gas, and a common pumping structure of the micro pump includes an inlet channel 1', an outlet channel 2', a piston 3', a communication member 4 'and a diaphragm 5', wherein an inlet 6 'and an outlet 7' are spaced apart from each other on the communication member 4', a first diaphragm 51' and a second diaphragm 52 'are spaced apart from each other on the diaphragm 5', a portion of the first diaphragm 51 'covers the inlet 6', a portion of the inlet 6 'is exposed at a periphery of the first diaphragm 51', the entire outlet 7 'is covered by the second diaphragm 52', the inlet channel 1 'is opposite to the first diaphragm 51', and the outlet channel 2 'is opposite to the second diaphragm 52'. During water inlet or air inlet operation, the piston 3' moves away from the communicating piece 4' and generates negative pressure, so that the first diaphragm 51' and the second diaphragm 52' both move towards the piston 3', at the same time, the first diaphragm 51' moves away from the inflow channel 1', and water flow or gas flows in from the inflow channel 1' and flows in through the inlet 6 '; during water or gas discharging operation, the piston 3' moves close to the communicating piece 4' so that the first diaphragm 51' and the second diaphragm 52' both move away from the communicating piece 4', at this time, the first diaphragm 51' seals the inflow channel 1' to ensure that water or gas cannot enter, the second diaphragm 52' opens the outlet 7', and water or gas flows through the outlet 7' and flows out from the outflow channel 2 '. The pumping structure adopts the integral diaphragm 5', the movement stroke of the first diaphragm 51' and the second diaphragm 52 'relative to the diaphragm 5' is limited, and the space for exposing the inlet 6 'by the first diaphragm 51' is limited during water inlet or air inlet, so that the flow is small during air inlet or water inlet, and the liquid or gas pumping of the flow cannot be met.

SUMMERY OF THE UTILITY MODEL

Therefore, it is necessary to provide a micro pump and a pumping assembly thereof, which can easily and quickly open a pumping channel formed by a plurality of through holes through a movable cap to greatly increase the flow of gas or water, in order to solve the problem of small pumping flow of the micro pump.

A pumping assembly for a high flow micropump comprising:

the upper cover is provided with a first flow passage and a second flow passage at intervals, one end of the first flow passage extends to the bottom of the upper cover, the other end of the first flow passage extends to the outer side of the upper cover, one end of the second flow passage extends to the bottom of the upper cover, and the other end of the second flow passage extends to the outer side of the upper cover;

the communicating piece is connected with the bottom of the upper cover, a first cavity and a second cavity are formed between the communicating piece and the upper cover at intervals, the first cavity is communicated with the first flow channel, the second cavity is communicated with the second flow channel, a plurality of first through holes and a plurality of second through holes penetrate through the communicating piece, the first through holes are communicated with the first cavity, and the second through holes are communicated with the second cavity;

one end of the first movable cap is movably arranged in the first through hole in a penetrating mode, a first blocking part is arranged at the other end of the first movable cap and located on one side, far away from the first cavity, of the first through hole, and the first blocking part can movably seal the first through holes or open the first through holes; and

and one end of the second movable cap is movably arranged in the second through hole in a penetrating manner, the other end of the second movable cap is provided with a second plugging part, the second plugging part is positioned on one side, close to the second cavity, of the second through hole, and the second plugging part can movably seal the second through holes or open the second through holes.

Above-mentioned pump sending subassembly of large-traffic micropump, first movable cap and second movable cap are reverse setting, and during initial condition, first shutoff portion is sealed first through-hole, and second shutoff portion is sealed the second through-hole. When the micro pump is used for pumping, the first movable cap is enabled to move away from the first cavity through the pumping of the piston of the micro pump, the first through hole is opened by the first blocking part, the second through hole is still sealed by the second blocking part, and external air or water flows into the first flow channel and enters the movable cavity of the piston of the micro pump through the first through hole; when the air or water flows out of the second through hole and enters the second flow channel, the first movable cap moves close to the first cavity, the first blocking portion seals the first through hole, the second movable cap moves close to the second cavity, the second blocking portion opens the second through hole, and air or water flows out of the second through hole and enters the second flow channel. Because be provided with a plurality of first through-holes, a plurality of second through-hole, and first movable cap and second movable cap are all independent activity, have great activity stroke, when the pumping operation, can satisfy the gas or the rivers of great flow and pass through.

In one embodiment, the first flow channel comprises a first flow section and a second flow section, the first flow section is arranged in the upper cover along the thickness direction of the upper cover and is communicated with the first cavity; one end of the second flow section is communicated with the first flow section, and the other end of the second flow section extends to the outer side of the upper cover along the direction vertical to the first flow section; and/or

The second flow channel comprises a third flow section and a fourth flow section, and the third flow section is arranged in the upper cover along the thickness direction of the upper cover and is communicated with the second cavity; one end of the fourth flow section is communicated with the third flow section, and the other end of the fourth flow section extends to the outer side of the upper cover along the direction vertical to the third flow section.

In one embodiment, the first flow channel and the second flow channel extend to the outer side of the upper cover along the same direction.

In one embodiment, the first movable cap includes a first rod, one end of the first rod movably penetrates through the first through hole, and the other end of the first rod is provided with the first blocking portion.

In one embodiment, the plurality of first through holes are arranged in an arc shape or a circular shape, one first through hole is surrounded by the first through holes which are arranged in the arc shape or the circular shape, and the first rod body movably penetrates through the surrounded first through hole; the first blocking part is arc-shaped or circular.

In one embodiment, one end of the first rod body, which is far away from the first blocking portion, extends to the periphery to form a first limiting portion, the first limiting portion is located on one side, which is close to the first cavity, of the first through hole, the first movable cap moves away from the first cavity to open the first through hole, and the first limiting portion can abut against and limit the surrounded first through hole.

In one embodiment, the second movable cap includes a second rod body, one end of the second rod body movably penetrates through the second through hole, and the second blocking portion is arranged at the other end of the second rod body.

In one embodiment, the plurality of second through holes are arranged in an arc shape or a circular shape, one second through hole is surrounded by the second through holes which are arranged in the arc shape or the circular shape, and the second rod body movably penetrates through the surrounded second through hole; the second plugging part is arc-shaped or circular.

In one embodiment, a second limiting portion extends towards the periphery of one end, away from the second blocking portion, of the second rod body, the second limiting portion is located on one side, away from the second cavity, of the second through hole, the second movable cap moves close to the second cavity to enable the second through hole to be opened, and the second limiting portion can abut against and limit the surrounded second through hole.

A high flow micropump comprising: the cylinder body is connected with the bottom of the communicating piece, a movable cavity is formed in the space between the cylinder body and the communicating piece, the movable cavity is communicated with the first through hole and the second through hole, the driving assembly is arranged on the cylinder body, the piston is located in the movable cavity, the driving assembly can drive the piston to move away from the communicating piece, the first through hole is opened by the first movable cap, and water flow or gas flows into the movable cavity from the first flow channel; the driving assembly can drive the piston to move close to the communicating piece, so that the second movable cap opens the second through hole, and water flow or gas flows into the second flow channel through the second through hole.

Drawings

FIG. 1 is a first schematic structural diagram of a conventional micro pump;

FIG. 2 is a schematic structural diagram of a conventional micro-pump;

fig. 3 is a schematic structural view of an embodiment of the mass flow micropump of the present invention;

FIG. 4 is an exploded view of FIG. 3;

FIG. 5 is a cross-sectional view of FIG. 3;

fig. 6 is an exploded schematic view of an embodiment of the pumping assembly of the present invention;

FIG. 7 is a cross-sectional view of one embodiment of a pumping assembly of the present invention;

figure 8 is a cross-sectional view of another embodiment of a pumping assembly of the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

100. a high flow rate micro pump; 1. a cylinder body; 2. a drive assembly; 21. a motor; 22. an eccentric wheel; 23. a transmission rod; 3. a piston; 4. a pumping assembly; 41. an upper cover; 411. a first flow passage; 4111. a first flow section; 4112. a second flow section; 412. a second flow passage; 42. a communicating member; 421. a first through hole; 422. a second through hole; 43. a first movable cap; 431. a first blocking portion; 432. a first rod body; 433. a first limiting part; 44. a second movable cap; 441. a second sealing part; 442. a second rod body; 443. a second limiting part; 451. a first cavity; 452. a second cavity; 46. a gasket; 5. a movable cavity.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, preferred embodiments of the present invention are described in detail below with reference to the accompanying drawings. It is apparent that the specific details set forth in the following description are merely exemplary of the invention, which can be practiced in many other embodiments that depart from the specific details disclosed herein. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work all belong to the protection scope of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

Referring to fig. 3 and 4, in one embodiment, a mass flow micropump 100 includes: cylinder 1, drive assembly 2, piston 3 and pump assembly 4. On pumping subassembly 4 was located to cylinder body 1, drive assembly 2 located cylinder body 1, piston 3 was located cylinder body 1, and realized pumping subassembly 4 suction gas or water through drive assembly 2 drive piston 3 activity.

Referring to fig. 4, fig. 5 and fig. 8, in one embodiment, the pumping assembly 4 includes: an upper cover 41, a communication member 42, a first movable cap 43, and a second movable cap 44. The upper cover 41 is provided with a first flow passage 411 and a second flow passage 412 at intervals, an outlet end of the first flow passage 411 extends to the bottom of the upper cover 41, an inlet end of the first flow passage 411 extends to the outside of the upper cover 41, an inlet end of the second flow passage 412 extends to the bottom of the upper cover 41, and an outlet end of the second flow passage 412 extends to the outside of the upper cover 41. It is understood that the first flow channel 411 is for air intake or water intake, and the second flow channel 412 is for air exhaust or water exhaust. The communicating member 42 is connected to the bottom of the upper cover 41, a first cavity 451 and a second cavity 452 are formed between the communicating member 42 and the upper cover 41 at intervals, the first cavity 451 is communicated with the first channel 411, the second cavity 452 is communicated with the second channel 412, the communicating member 42 is provided with a plurality of first through holes 421 and a plurality of second through holes 422 in a penetrating manner, the first through holes 421 are communicated with the first cavity 451, and the second through holes 422 are communicated with the second cavity 452. One end of the first movable cap 43 is movably inserted into the first through hole 421, the other end of the first movable cap 43 is provided with a first blocking portion 431, the first blocking portion 431 is located on one side of the first through hole 421 away from the first cavity 451, and the first blocking portion 431 can movably seal each first through hole 421 or open each first through hole 421. One end of the second movable cap 44 is movably disposed through the second through hole 422, and the other end of the second movable cap 44 is provided with a second blocking portion 441, the second blocking portion 441 is located at a side of the second through hole 422 close to the second cavity 452, and the second blocking portion 441 can movably seal each second through hole 422 or open each second through hole 422.

Referring to fig. 5, in another embodiment, the cylinder 1 is connected to the bottom of the communicating member 42, a movable cavity 5 is formed inside the cylinder 1 and the communicating member 42, the movable cavity 5 is communicated with the first through hole 421 and the second through hole 422, the driving assembly 2 is disposed on the cylinder 1, the piston 3 is located in the movable cavity 5, and the driving assembly 2 can drive the piston 3 to move away from the communicating member 42, so that the first movable cap 43 opens the first through hole 421, and water or gas flows into the movable cavity 5 through the first flow channel 411; the driving assembly 2 can drive the piston 3 to move close to the communicating member 42, so that the second movable cap 44 opens the second through hole 422, and water or gas flows into the second flow passage 412 through the second through hole 422.

In the pumping assembly 4, the first movable cap 43 and the second movable cap 44 are disposed in opposite directions, and in an initial state, the first blocking portion 431 seals the first through hole 421, and the second blocking portion 441 seals the second through hole 422. When the suction operation is performed, the piston 3 sucks the air so that the first movable cap 43 moves away from the first cavity 451, and the first blocking portion 431 opens the first through hole 421, at this time, the second blocking portion 441 still seals the second through hole 422, and the external air or water flows in from the first flow passage 411 and enters the movable chamber 5 through the first through hole 421; when the sending operation is performed, the piston 3 of the micro pump pushes to generate pressure, so that the first movable cap 43 moves close to the first cavity 451, the first blocking portion 431 seals the first through hole 421, the second movable cap 44 moves close to the second cavity 452, the second blocking portion 441 opens the second through hole 422, and the gas or water in the movable chamber 5 flows out from the second through hole 422 into the second flow channel 412. Because the plurality of first through holes 421 and the plurality of second through holes 422 are provided, and the first movable cap 43 and the second movable cap 44 are independently movable, the movable stroke is large, and when the pumping operation is performed, the gas or water flow with large flow can pass through the movable cap.

Referring to fig. 5, it should be noted that the driving assembly 2 may be a driving structure commonly used at present, that is, it is composed of a motor 21, an eccentric wheel 22 and a transmission rod 23, the motor 21 drives the eccentric wheel 22 to rotate, and then the transmission rod 23 drives the piston 3 to make a linear reciprocating motion.

Referring to fig. 6, in order to ensure the sealing requirement and satisfy the requirement of better moving stroke of the first movable cap 43 and the second movable cap 44, the pumping assembly 4 is further provided with a gasket 46, and the bottom surface of the upper cover 41 is protruded with a convex strip. The gasket 46 is disposed on the top surface of the communicating member 42, and the gasket 46 includes two spaced track circles, one track circle surrounds each first through hole 421, the other track circle surrounds each second through hole 422, and the protruding strip abuts against the gasket 46, so that the two track circles form a closed space, i.e., a first cavity 451 and a second cavity 452.

Referring to fig. 7, in an embodiment of the first flow channel 411, the first flow channel 411 includes a first flow section 4111 and a second flow section 4112, the first flow section 4111 is disposed in the upper lid 41 along a thickness direction of the upper lid 41 and is communicated with the first cavity 451; one end of the second flow section 4112 is in communication with the first flow section 4111, and the other end of the second flow section 4112 extends outside the upper cover 41 in a direction perpendicular to the first flow section 4111.

In one embodiment of the second flow channel 412, the second flow channel 412 includes a third flow segment and a fourth flow segment, the third flow segment is disposed in the upper cover 41 along the thickness direction of the upper cover 41 and is communicated with the second cavity 452; one end of the fourth flow section is communicated with the third flow section, and the other end of the fourth flow section extends to the outside of the upper cover 41 along the direction perpendicular to the third flow section.

The first flow passage 411 and the second flow passage 412 are configured to facilitate the inflow and outflow of gas or water, and facilitate the connection of the second flow section and the fourth flow section to the end of the outer side of the upper cover 41. Referring to fig. 4 and 6, the first flow channel 411 and the second flow channel 412 extend to the outer side of the upper cover 41 along the same direction, so that the inlet pipeline and the outlet pipeline can be arranged at the same side, which is beneficial to convenient arrangement of the pipelines.

Referring to fig. 8, in an embodiment of the first movable cap 43, the first movable cap 43 includes a first rod 432, a first through hole 421 is movably disposed at a bottom end of the first rod 432, and a first blocking portion 431 is disposed at a top end of the first rod 432.

Referring to fig. 6, the plurality of first through holes 421 may be arranged in an arc shape or a circular shape, one first through hole 421 is surrounded by the first through hole 421 arranged in an arc shape or a circular shape, and the first rod 432 movably penetrates through the surrounded first through hole 421; the first blocking portion 431 has an arc shape or a circular shape.

Referring to fig. 8, a first limiting portion 433 extends from the bottom end of the first rod 432 to the periphery, the first limiting portion 433 is located at a side of the first through hole 421 close to the first cavity 451, the first movable cap 43 moves away from the first cavity 451 to open the first through hole 421, and the first limiting portion 433 can abut against the surrounded first through hole 421 for limiting, so as to prevent the whole first movable cap 43 from being separated from the first through hole 421. The first limiting portion 433 may have a spherical shape.

Referring to fig. 8, similarly, in an embodiment of the second movable cap 44, the second movable cap 44 includes a second rod 442, a second through hole 422 is movably disposed at a bottom end of the second rod 442, and a second blocking portion 441 is disposed at a top end of the second rod 442.

Referring to fig. 6, the plurality of second through holes 422 may be arranged in an arc shape or a circular shape, one second through hole 422 is surrounded by the second through holes 422 arranged in an arc shape or a circular shape, and the second rod 442 movably penetrates through the surrounded second through hole 422; the second blocking portion 441 has an arc shape or a circular shape.

Referring to fig. 8, a second position-limiting portion 443 extends from the bottom end of the second rod 442 to the outer periphery, the second position-limiting portion 443 is located on a side of the second through hole 422 away from the second cavity 452, the second movable cap 44 moves close to the second cavity 452 to open the second through hole 422, and the second position-limiting portion 443 can abut against the surrounded second through hole 422 for limiting, so as to prevent the entire second movable cap 44 from being separated from the second through hole 422. The second stopper portion 443 may have a spherical shape.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several changes, substitutions and improvements can be made, and all of them should be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the claims.

Claims (10)

1. A pumping assembly for a high flow micropump, comprising:

the upper cover is provided with a first flow passage and a second flow passage at intervals, one end of the first flow passage extends to the bottom of the upper cover, the other end of the first flow passage extends to the outer side of the upper cover, one end of the second flow passage extends to the bottom of the upper cover, and the other end of the second flow passage extends to the outer side of the upper cover;

the communicating piece is connected with the bottom of the upper cover, a first cavity and a second cavity are formed between the communicating piece and the upper cover at intervals, the first cavity is communicated with the first flow channel, the second cavity is communicated with the second flow channel, a plurality of first through holes and a plurality of second through holes penetrate through the communicating piece, the first through holes are communicated with the first cavity, and the second through holes are communicated with the second cavity;

one end of the first movable cap is movably arranged in the first through hole in a penetrating mode, a first blocking part is arranged at the other end of the first movable cap and located on one side, far away from the first cavity, of the first through hole, and the first blocking part can movably seal the first through holes or open the first through holes; and

and one end of the second movable cap movably penetrates through the second through hole, the other end of the second movable cap is provided with a second blocking part, the second blocking part is positioned on one side, close to the second cavity, of the second through hole, and the second blocking part can movably seal the second through holes or open the second through holes.

2. The pumping assembly of a high flow rate micropump of claim 1, wherein the first flow channel comprises a first flow section and a second flow section, the first flow section is disposed in the upper cover along a thickness direction of the upper cover and is communicated with the first cavity; one end of the second flow section is communicated with the first flow section, and the other end of the second flow section extends to the outer side of the upper cover along the direction vertical to the first flow section; and/or

The second flow channel comprises a third flow section and a fourth flow section, and the third flow section is arranged in the upper cover along the thickness direction of the upper cover and is communicated with the second cavity; one end of the fourth flow section is communicated with the third flow section, and the other end of the fourth flow section extends to the outer side of the upper cover along the direction vertical to the third flow section.

3. The pumping assembly of a high flow rate micro pump according to claim 1, wherein the first flow channel and the second flow channel extend to an outside of the upper cover in a same direction.

4. The pumping assembly of a high-flow micropump according to claim 1, wherein the first movable cap comprises a first rod body, one end of the first rod body movably penetrates through the first through hole, and the other end of the first rod body is provided with the first blocking portion.

5. The pumping assembly of a high-flow micropump according to claim 4, wherein the plurality of first through holes are arranged in an arc shape or a circular shape, and one of the first through holes is surrounded by the first through hole arranged in an arc shape or a circular shape, and the first rod body movably penetrates through the surrounded first through hole; the first plugging part is arc-shaped or circular.

6. The pumping assembly of a high flow rate micro pump according to claim 5, wherein a first position-limiting portion is extended from an end of the first rod body away from the first blocking portion to an outer periphery, the first position-limiting portion is located at a side of the first through hole close to the first cavity, the first movable cap moves away from the first cavity to open the first through hole, and the first position-limiting portion can abut against and limit the surrounded first through hole.

7. The pumping assembly of a high-flow micro pump according to claim 1, wherein the second movable cap comprises a second rod, one end of the second rod movably penetrates through the second through hole, and the other end of the second rod is provided with the second blocking portion.

8. The pumping assembly of a high flow rate micro pump according to claim 7, wherein a plurality of the second through holes are arranged in an arc shape or a circular shape, and one of the second through holes is surrounded by the second through hole arranged in an arc shape or a circular shape, and the second rod body movably penetrates through the surrounded second through hole; the second plugging part is arc-shaped or circular.

9. The pumping assembly of a high flow rate micro pump according to claim 8, wherein a second position-limiting portion extends from an end of the second rod body away from the second blocking portion to an outer periphery, the second position-limiting portion is located at a side of the second through hole away from the second cavity, the second movable cap moves close to the second cavity to open the second through hole, and the second position-limiting portion can abut against and limit the second through hole.

10. A high flow micropump, comprising: the micro pump comprises a cylinder body, a driving assembly, a piston and a pumping assembly of the micro pump with large flow rate according to any one of claims 1 to 9, wherein the cylinder body is connected with the bottom of the communicating piece, a movable cavity is formed in the interior between the cylinder body and the communicating piece, the movable cavity is communicated with the first through hole and the second through hole, the driving assembly is arranged on the cylinder body, the piston is positioned in the movable cavity, and the driving assembly can drive the piston to move away from the communicating piece, so that the first movable cap opens the first through hole, and water flow or gas flows into the movable cavity from the first flow channel; the driving assembly can drive the piston to move close to the communicating piece, so that the second movable cap opens the second through hole, and water flow or gas flows into the second flow channel through the second through hole.

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