CN216975183U - Micropump and diaphragm device thereof - Google Patents
Micropump and diaphragm device thereof Download PDFInfo
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- CN216975183U CN216975183U CN202220559309.4U CN202220559309U CN216975183U CN 216975183 U CN216975183 U CN 216975183U CN 202220559309 U CN202220559309 U CN 202220559309U CN 216975183 U CN216975183 U CN 216975183U
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- diaphragm
- cavity
- capsule
- micropump
- diaphragm capsule
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Abstract
The utility model relates to a micropump and a diaphragm device thereof, comprising a valve seat (122), a diaphragm seat (132) and a diaphragm (131) arranged between the valve seat (122) and the diaphragm seat (132), wherein a plurality of diaphragm bags (1311) are arranged on the diaphragm (131), a groove (31) is arranged at the position of each diaphragm bag (1311) corresponding to the valve seat (122), and a cavity body (312) formed by the grooves (31) and a diaphragm cavity (1312) of the diaphragm bags (1311) are mutually sealed and assembled to form a diaphragm bag cavity body (32). The effects of preventing the diaphragm capsule from being absorbed and deformed because of negative pressure and preventing the diaphragm capsule from being easily worn because of absorption are achieved.
Description
Technical Field
The utility model relates to a miniature diaphragm pump device, in particular to a miniature diaphragm pump with a sealed space diaphragm device, and especially relates to a miniature pump and a diaphragm device thereof.
Background
The miniature diaphragm pump has the characteristics of low noise, corrosion resistance, high pressure, self-suction and the like, is easy to move and install, can completely separate fluid from the outside, and is widely applied to vacuum pumping, water pumps and some experimental systems.
However, since the micro diaphragm pump sucks fluid by the negative pressure of the diaphragm capsule reciprocating, the diaphragm capsule tends to form internal absorption deformation during the negative pressure movement, and the wear of the diaphragm capsule and the side wall surface after the internal absorption has a considerable influence on the service life of the micro diaphragm pump.
Aiming at the problems of the defects, the utility model adopts the following technical scheme for improvement.
Disclosure of Invention
The utility model aims to provide a micro pump and a diaphragm device thereof, and the disclosed technical scheme is as follows:
a diaphragm device of a micropump, wherein the diaphragm device (30) is assembled between a driving device (14) and a valve device (12) of a micropump pump (10) to form a plurality of sealed diaphragm capsule cavities (32) for pumping fluid, the sealed diaphragm capsule cavities (32) comprise a valve seat (122), a diaphragm seat (132) and a diaphragm (131) arranged between the valve seat (122) and the diaphragm seat (132), the diaphragm (131) is provided with a plurality of diaphragm capsules (1311), the micropump is characterized in that a groove (31) is arranged at the position of each diaphragm capsule (1311) corresponding to the valve seat (122), and a cavity (312) formed by the groove (31) and a diaphragm cavity (1312) of the diaphragm capsule (1311) are mutually sealed and assembled to form the diaphragm capsule cavity (32).
Furthermore, the height H of the cavity body (312) of the groove (31) is equal to the depth L of the diaphragm cavity (1312) of the diaphragm capsule (1311), and the diaphragm capsule cavity (32) is formed by half.
Furthermore, the groove (31) and the diaphragm capsule (1311) are arranged and formed into the same bowl shape.
Further, the groove (31) further comprises an arc-shaped surface (313) and a sealing convex edge (314).
Furthermore, a plane attaching part (311) is arranged between the arc-shaped surface (313) and the sealing convex edge (314), and the plane attaching part (311) is attached to the plane edge of the corresponding diaphragm capsule (1311).
The utility model also discloses a micropump, which comprises an outlet cover plate (11), a valve device (12), a diaphragm piece (13) and a driving device (14), wherein the outlet cover plate (11) is provided with a fluid inlet (15) and a fluid outlet (16), the micropump is characterized by further comprising a diaphragm device (30) which is assembled between the driving device (14) and the valve device (12) of the micropump (10) and assembled into a plurality of sealed diaphragm capsule cavities (32) for pumping fluid, the diaphragm device (30) comprises a valve seat (122), a diaphragm seat (132) and a diaphragm (131) which is arranged between the valve seat (122) and the diaphragm seat (132), the diaphragm (131) is provided with a plurality of diaphragm capsules (1311), the micropump is characterized in that each diaphragm capsule (1311) is provided with a groove (31) corresponding to the position of the valve seat (122), and a cavity body (312) formed by the grooves (31) and a diaphragm cavity (1312) of the diaphragm capsules (1311) are mutually sealed and assembled to form a diaphragm capsule cavity body (32).
Furthermore, the height H of the cavity body (312) of the groove (31) is equal to the depth L of the diaphragm cavity (1312) of the diaphragm capsule (1311), and the diaphragm capsule cavity (32) is formed in half.
Further, the groove (31) and the diaphragm capsule (1311) are arranged and formed into the same bowl shape.
Further, the groove (31) further comprises an arc-shaped surface (313) and a sealing convex edge (314).
Furthermore, a plane attaching part (311) is arranged between the arc-shaped surface (313) and the sealing convex edge (314), and the plane attaching part (311) is attached to the plane edge of the corresponding diaphragm capsule (1311).
According to the technical scheme, the utility model has the following beneficial effects:
according to the micropump and the diaphragm device thereof, the bowl-shaped groove cavities similar to the diaphragm capsules are arranged corresponding to the valve seat part at the opening of each diaphragm capsule, and the bowl-shaped groove cavities and the diaphragm capsule cavities form the suction negative pressure capsules of the micropump together, so that the diaphragm capsules are prevented from being sucked and deformed due to negative pressure, and the diaphragm capsules are completely prevented from being sucked and easily abraded.
In the diaphragm device, the structure that the flange at the edge of the groove on the valve seat and the edge of the diaphragm capsule of the soft colloid are in press fit and seal is adopted, so that the structure is simple, an effective sealing effect is realized, the completely sealed structure of the diaphragm is realized, the water tightness and the up and down complete isolation are realized, no water flows to the cavity below the diaphragm, the motor has no water inlet risk, and the motor is not damaged.
In the diaphragm device, the edge of the bowl-shaped groove and the diaphragm capsule are provided with the plane joint part, so that the diaphragm device has a buffering effect in the negative pressure movement process of the diaphragm capsule, and the diaphragm is better protected.
Drawings
FIG. 1 is a schematic view of the overall structure of a pump according to the preferred embodiment of the present invention;
FIG. 2 is an exploded view of the pump structure in accordance with the preferred embodiment of the present invention;
FIG. 3 is a schematic view of a preferred embodiment of the diaphragm assembly of the present invention;
FIG. 4 is a schematic cross-sectional view A-A of the internal structure of a diaphragm device according to the preferred embodiment of the present invention;
FIG. 5 is an exploded view of the diaphragm assembly of the preferred embodiment of the present invention;
FIG. 6 is an enlarged sectional view of the pump according to the preferred embodiment of the present invention;
FIG. 7 is an enlarged sectional view of a pump according to the preferred embodiment of the present invention, partially shown in B-B.
In the figure, a pump 10, an outlet cover plate 11, a valve device 12, a diaphragm member 13, a driving device 14, a fluid inlet 15, a fluid outlet 16;
a diaphragm 131, a diaphragm seat 132, a diaphragm bladder 1311, a diaphragm chamber 1312;
the diaphragm device 30, the groove 31, the plane attaching part 311, the cavity body 312, the arc-shaped surface 313, the sealing convex edge 314, the diaphragm capsule cavity body 32, the outlet channel cavity 22 and the groove 23.
Detailed Description
The utility model is further described with reference to the following drawings and detailed description.
As shown in fig. 1 to 7, in a diaphragm device of a micro pump, a diaphragm device 30 is assembled between a driving device 14 and a valve device 12 of a micro diaphragm pump 10, and assembled into a plurality of sealed fluid-pumping diaphragm capsule cavities 32, including a valve seat 122 and a diaphragm seat 132, and a diaphragm 131 installed between the valve seat 122 and the diaphragm seat 132, a plurality of diaphragm capsules 1311 are disposed on the diaphragm 131, a groove 31 is disposed at a position corresponding to the valve seat 122 in each diaphragm capsule 1311, and a cavity 312 formed by the grooves 31 and a diaphragm cavity 1312 of the diaphragm capsules 1311 are sealed and assembled with each other to form the diaphragm capsule cavities 32.
As shown in fig. 5 and 6, the cavity body 312 of the recess 31 has a height H equal to the depth L of the diaphragm cavity 1312 of the diaphragm bladder 1311, forming a diaphragm bladder cavity 32 in half.
As shown in fig. 6, the groove 31 is provided with the same bowl shape as the septum bladder 1311.
As shown in FIG. 7, the groove 31 further includes an arcuate surface 313 and a sealing bead 314.
As shown in fig. 7, a planar attaching portion 311 is further disposed between the arc surface 313 and the sealing flange 314, and the planar attaching portion 311 is attached to the planar edge of the corresponding diaphragm bladder 1311.
As shown in fig. 1 to 7, a micropump includes an outlet cover plate 11, a valve device 12, a diaphragm member 13 and a driving device 14, wherein the outlet cover plate 11 is provided with a fluid inlet 15 and a fluid outlet 16, the micropump further includes a diaphragm device 30 assembled and arranged between the driving device 14 and the valve device 12 of the micropump 10, and assembled into a plurality of sealed fluid pumping diaphragm capsule cavities 32, the diaphragm device 30 includes a valve seat 122 and a diaphragm seat 132, and a diaphragm 131 arranged between the valve seat 122 and the diaphragm seat 132, a plurality of diaphragm capsules 1311 are arranged on the diaphragm 131, each diaphragm capsule 1311 is provided with a groove 31 corresponding to the position of the valve seat 122, and a cavity 312 formed by the grooves 31 and a diaphragm cavity 1312 of the diaphragm capsule 1311 are mutually sealed and assembled to form the diaphragm capsule cavity 32.
As shown in fig. 5 and 6, the cavity body 312 of the recess 31 has a height H equal to the depth L of the diaphragm cavity 1312 of the diaphragm bladder 1311, forming a diaphragm bladder cavity 32 in half.
As shown in fig. 6, the groove 31 is provided with the same bowl shape as the septum bladder 1311.
As shown in FIG. 7, the groove 31 further includes an arcuate surface 313 and a sealing bead 314.
As shown in fig. 7, a planar attachment portion 311 is further disposed between the curved surface 313 and the sealing flange 314, and the planar attachment portion 311 is attached to a planar edge of the corresponding diaphragm bladder 1311.
The above is one embodiment of the present invention. Furthermore, it is to be understood that all equivalent or simple changes in the structure, features and principles described in the present patent concepts are included in the scope of the present patent.
Claims (10)
1. A diaphragm device of a micropump comprises a valve seat (122), a diaphragm seat (132) and a diaphragm (131) arranged between the valve seat (122) and the diaphragm seat (132), wherein a plurality of diaphragm capsules (1311) are arranged on the diaphragm (131), and the micropump is characterized in that a groove (31) is arranged at the position, corresponding to the valve seat (122), of each diaphragm capsule (1311), and a cavity body (312) formed by the grooves (31) and a diaphragm cavity (1312) of each diaphragm capsule (1311) are mutually sealed and assembled to form a diaphragm capsule cavity body (32).
2. A diaphragm device for a micro-pump according to claim 1, characterized in that the cavity (312) of the recess (31) has a height H equal to the depth L of the diaphragm cavity (1312) of the diaphragm capsule (1311), forming in half the diaphragm capsule cavity (32).
3. A diaphragm device for micro-pump according to claim 2, characterized in that said recess (31) is arranged to form the same bowl shape as the diaphragm capsule (1311).
4. A diaphragm assembly as claimed in claim 1, wherein said recess (31) further comprises an arcuate surface (313) and a sealing bead (314).
5. A diaphragm device for micro-pump according to claim 4, characterized in that a plane attaching portion (311) is further disposed between the arc-shaped face (313) and the sealing flange (314), and the plane attaching portion (311) is attached to the plane edge of the corresponding diaphragm capsule (1311).
6. A micropump comprising an outlet cover plate (11), a valve device (12), a diaphragm member (13) and a driving device (14), wherein the outlet cover plate (11) is provided with a fluid inlet (15) and a fluid outlet (16), characterized in that the micropump further comprises a diaphragm device (30) assembled between the driving device (14) and the valve device (12) of the micropump pump (10) to form a plurality of sealed diaphragm capsule cavities (32) for pumping fluid, the diaphragm device (30) comprises a valve seat (122) and a diaphragm seat (132), and a diaphragm (131) mounted between the valve seat (122) and the diaphragm seat (132), the diaphragm (131) is provided with a plurality of diaphragm capsules (1311), characterized in that each diaphragm capsule (1311) is provided with a groove (31) corresponding to the position of the valve seat (122), and a cavity (312) formed by the grooves (31) and a cavity (1312) of the diaphragm capsule (1311) are mutually sealed and assembled to form a diaphragm capsule cavity (32).
7. A micropump according to claim 6, characterized in that the cavity (312) of the recess (31) has a height H equal to the depth L of the diaphragm cavity (1312) of the diaphragm capsule (1311), forming in half the diaphragm capsule cavity (32).
8. A micro-pump according to claim 7, characterized in that the recess (31) is arranged to form the same bowl shape as the diaphragm capsule (1311).
9. A micropump according to claim 6, characterized in that said recess (31) further comprises an arc-shaped face (313) and a sealing bead (314).
10. A micro-pump according to claim 9, characterized in that a planar abutment (311) is provided between the curved surface (313) and the sealing bead (314), said planar abutment (311) abutting a planar edge of the corresponding diaphragm capsule (1311).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220559309.4U CN216975183U (en) | 2022-03-15 | 2022-03-15 | Micropump and diaphragm device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220559309.4U CN216975183U (en) | 2022-03-15 | 2022-03-15 | Micropump and diaphragm device thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216975183U true CN216975183U (en) | 2022-07-15 |
Family
ID=82360720
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220559309.4U Active CN216975183U (en) | 2022-03-15 | 2022-03-15 | Micropump and diaphragm device thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216975183U (en) |
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2022
- 2022-03-15 CN CN202220559309.4U patent/CN216975183U/en active Active
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