CN209976748U - S-shaped runner valveless piezoelectric pump - Google Patents
S-shaped runner valveless piezoelectric pump Download PDFInfo
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- CN209976748U CN209976748U CN201920485750.0U CN201920485750U CN209976748U CN 209976748 U CN209976748 U CN 209976748U CN 201920485750 U CN201920485750 U CN 201920485750U CN 209976748 U CN209976748 U CN 209976748U
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- pump body
- pump
- ring
- shaped flow
- annular
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Abstract
The utility model discloses an S-shaped runner valveless piezoelectric pump, which comprises a lower pump body, an upper cover, a piezoelectric sheet, a sealing ring, a rubber sealing ring, a screw, a nut and an annular ring; the lower pump body is provided with a liquid inlet which is connected with the pump cavity through an S-shaped flow channel, a round angle structure is arranged at the position where the liquid outlet is connected with the pump cavity, the lower seal groove of the lower pump body and an annular ring assembled by an upper seal groove of the upper pump body are used for sealing, a rubber seal ring is installed in the annular seal groove, a lower annular seal groove is arranged below the upper cover and is used for assembling the seal ring, a right-handed thread arranged on the upper cover is matched with a thread groove arranged on the upper pump body, so that the piezoelectric vibrator is fixed through the seal ring and the rubber seal ring, and the lower pump body and the upper pump body are fixed through the matching of a screw; the utility model has the advantages of simple structure, low cost and good output performance, and has wide application prospect in the convenient delivery of trace drugs.
Description
Technical Field
The utility model relates to a S type runner valveless piezoelectric pump belongs to the fluid machinery field.
Background
The valveless piezoelectric pump utilizes the inverse piezoelectric effect of the piezoelectric sheet to generate pressure difference inside and outside the pump body, and realizes the circular flow of liquid under the action of pressure.
SUMMERY OF THE UTILITY MODEL
The utility model discloses to the problem that no valve piezoelectric pump exists at present, provide a no valve piezoelectric pump that output flow is high.
The utility model adopts the technical proposal that: an S-shaped runner valveless piezoelectric pump comprises a lower pump body (1), an upper pump body (2), an upper cover (3), a piezoelectric sheet (4), a sealing ring (5), a rubber sealing ring (6), a nut (7), a screw (8) and an annular ring (9);
the lower pump body (1) is provided with a liquid inlet (1-2) and a liquid outlet (1-1), the liquid inlet (1-2) is directly connected with a pump cavity (1-4) through an S-shaped flow channel (1-6), the edge of the lower pump body (1) is provided with a lower sealing groove (1-7) and an upper sealing groove (2-4) arranged on the upper pump body (2) to assemble an annular ring (9) to achieve a sealing effect, the upper pump body (2) is provided with an annular sealing groove (2-2), a rubber sealing ring (6) is arranged in the annular sealing groove (2-2), a thread groove (2-3) is arranged above the annular sealing groove (2-2), a lower annular sealing groove (3-2) is arranged below the upper cover (3), and a sealing ring (5) is arranged in the lower annular sealing groove (3-2), right-handed threads (3-3) are formed on the side edge of an upper cover (3) and are matched with thread grooves (2-3) formed in an upper pump body (2), so that a piezoelectric plate (4) fixed between a sealing ring (5) and a rubber sealing ring (6) is formed, 4 threaded holes (1-3) are formed in the periphery of the lower pump body (1), 4 screw holes (2-1) are formed in the periphery of the upper pump body (2), and a screw (8) is matched with a nut (7) through the 4 threaded holes (1-3) formed in the lower pump body (1) and the 4 screw holes (2-1) formed in the upper pump body (2), so that the lower pump body (1) and the upper pump body (2) are fixed;
as a further improvement of the technical scheme, a liquid outlet (1-1) of the lower pump body (1) is connected with a pump cavity (1-4) through an S-shaped flow passage (1-6), and a fillet structure (1-5) is arranged at the joint of the S-shaped flow passage (1-6) and the pump cavity (1-4);
as a further improvement of the technical scheme, the radius of the S-shaped flow passage (1-6) connected with the liquid inlet (1-2) is smaller than that of the S-shaped flow passage connected with the pump cavity (1-4), and the radius of the S-shaped flow passage connected with the liquid outlet (1-1) is larger than that of the S-shaped flow passage connected with the pump cavity (1-4);
as a further improvement of the technical scheme, the upper cover (3) is provided with a beam handle (3-1).
The utility model has the advantages that:
the novel hydraulic pump can effectively relieve the backflow problem of the valveless piezoelectric pump, and improves the output flow;
the valveless piezoelectric pump has the advantages of low cost, excellent performance and the like, and has wide application prospect in the field of drug delivery.
Drawings
Fig. 1 is a cross-sectional view of the present invention.
Fig. 2 shows a structure diagram of the lower pump body of the present invention.
Fig. 3 is a schematic view of the upper pump body according to the present invention.
Fig. 4 is a schematic structural view of the upper cover of the present invention.
Fig. 5 is a schematic structural diagram of the present invention.
Detailed Description
In order to make the technical solution of the present invention better understood, the present invention is described in detail below with reference to the accompanying drawings, and the description of the present invention is only exemplary and explanatory, and should not be construed as limiting the scope of the present invention.
Referring to fig. 1 to 5, in an embodiment of the present invention, the specific structure includes:
an S-shaped runner valveless piezoelectric pump comprises a lower pump body (1), an upper pump body (2), an upper cover (3), a piezoelectric sheet (4), a sealing ring (5), a rubber sealing ring (6), a nut (7), a screw (8) and an annular ring (9); the lower pump body (1) is provided with a liquid inlet (1-2) and a liquid outlet (1-1), the liquid inlet (1-2) is directly connected with a pump cavity (1-4) through an S-shaped flow channel (1-6), the edge of the lower pump body (1) is provided with a lower sealing groove (1-7) and an upper sealing groove (2-4) arranged on the upper pump body (2) to assemble an annular ring (9) to achieve a sealing effect, the upper pump body (2) is provided with an annular sealing groove (2-2), a rubber sealing ring (6) is arranged in the annular sealing groove (2-2), a thread groove (2-3) is arranged above the annular sealing groove (2-2), a lower annular sealing groove (3-2) is arranged below the upper cover (3), and a sealing ring (5) is arranged in the lower annular sealing groove (3-2), right-handed threads (3-3) are formed on the side edge of an upper cover (3) and are matched with thread grooves (2-3) formed in an upper pump body (2), so that a piezoelectric plate (4) fixed between a sealing ring (5) and a rubber sealing ring (6) is formed, 4 threaded holes (1-3) are formed in the periphery of the lower pump body (1), 4 screw holes (2-1) are formed in the periphery of the upper pump body (2), and a screw (8) is matched with a nut (7) through the 4 threaded holes (1-3) formed in the lower pump body (1) and the 4 screw holes (2-1) formed in the upper pump body (2), so that the lower pump body (1) and the upper pump body (2) are fixed;
as a further improvement of the technical scheme, a liquid outlet (1-1) of the lower pump body (1) is connected with a pump cavity (1-4) through an S-shaped flow passage (1-6), and a fillet structure (1-5) is arranged at the joint of the S-shaped flow passage (1-6) and the pump cavity (1-4);
as a further improvement of the technical scheme, the radius of the S-shaped flow passage (1-6) connected with the liquid inlet (1-2) is smaller than that of the S-shaped flow passage connected with the pump cavity (1-4), and the radius of the S-shaped flow passage connected with the liquid outlet (1-1) is larger than that of the S-shaped flow passage connected with the pump cavity (1-4);
as a further improvement of the technical scheme, the upper cover (3) is provided with a beam handle (3-1).
The utility model discloses a working process divide into first working process and second working process:
the first working process comprises the following steps: the piezoelectric sheet (4) is excited by an alternating current signal, the piezoelectric sheet (4) bends upwards and deforms, the volume of the pump cavity (1-4) is increased, the internal pressure of the pump cavity (1-4) is reduced, liquid is sucked into the pump cavity (1-4) through the liquid inlet (1-2) and the liquid outlet (1-1) at the same time, due to the fact that the radiuses of the S-shaped flow channels (1-6) are different, higher pressure loss is generated when the liquid flows through the S-shaped flow channels (1-6) connected with the liquid outlet (1-1), and more liquid flows into the pump cavity (1-4) through the liquid inlet (1-2);
the second working process: the piezoelectric sheet (4) bends and deforms downwards under the excitation of a reverse alternating current signal, the volume of the pump cavity (1-4) is reduced, the internal pressure is increased, liquid is discharged out of the pump cavity (1-4) through the liquid inlet (1-2) and the liquid outlet (1-1) at the same time, due to the arrangement of the fillet structure (1-5), more liquid flows out of the liquid outlet (1-1) through the left S-shaped flow channel (1-6), and continuous output of the liquid is realized through the cyclic work of the two working processes.
The principles and embodiments of the present invention have been explained herein using specific examples, and the above description is only applicable to help understand the methods and their core ideas of the present invention. The foregoing is only a preferred embodiment of the present invention, and it should be noted that there are objectively infinite specific structures due to the limited character expressions, and it will be apparent to those skilled in the art that a plurality of modifications, decorations or changes can be made without departing from the principle of the present invention, and the above technical features can be combined in a proper manner; the application of these modifications, variations or combinations, or the application of the concepts and solutions of the present invention in other contexts without modification, is not intended to be considered as a limitation of the present invention.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (4)
1. An S-shaped runner valveless piezoelectric pump comprises a lower pump body (1), an upper pump body (2), an upper cover (3), a piezoelectric sheet (4), a sealing ring (5), a rubber sealing ring (6), a nut (7), a screw (8) and an annular ring (9); the lower pump body (1) is provided with a liquid inlet (1-2) and a liquid outlet (1-1), the liquid inlet (1-2) is directly connected with a pump cavity (1-4) through an S-shaped flow channel (1-6), the edge of the lower pump body (1) is provided with a lower sealing groove (1-7) and an upper sealing groove (2-4) arranged on the upper pump body (2) to assemble an annular ring (9) to achieve a sealing effect, the upper pump body (2) is provided with an annular sealing groove (2-2), a rubber sealing ring (6) is arranged in the annular sealing groove (2-2), a thread groove (2-3) is arranged above the annular sealing groove (2-2), a lower annular sealing groove (3-2) is arranged below the upper cover (3), and a sealing ring (5) is arranged in the lower annular sealing groove (3-2), the right-handed thread (3-3) is arranged on the side edge of the upper cover (3) and matched with the thread groove (2-3) arranged on the upper pump body (2), so that the piezoelectric piece (4) fixed between the sealing ring (5) and the rubber sealing ring (6) is formed, 4 threaded holes (1-3) are arranged on the periphery of the lower pump body (1), 4 screw holes (2-1) are arranged on the periphery of the upper pump body (2), and the screw (8) is matched with the nut (7) through the 4 threaded holes (1-3) arranged on the lower pump body (1) and the 4 screw holes (2-1) arranged on the upper pump body (2), so that the lower pump body (1) and the upper pump body (2) are fixed.
2. An S-channel valveless piezoelectric pump according to claim 1, wherein: the liquid outlet (1-1) of the lower pump body (1) is connected with the pump cavity (1-4) through an S-shaped flow channel (1-6), and a fillet structure (1-5) is arranged at the joint of the S-shaped flow channel (1-6) and the pump cavity (1-4).
3. An S-channel valveless piezoelectric pump according to claim 1, wherein: the radius of the S-shaped flow passage (1-6) connected with the liquid inlet (1-2) is smaller than that of the S-shaped flow passage connected with the pump cavity (1-4), and the radius of the S-shaped flow passage connected with the liquid outlet (1-1) is larger than that of the S-shaped flow passage connected with the pump cavity (1-4).
4. An S-channel valveless piezoelectric pump according to claim 1, wherein: the upper cover (3) is provided with a beam handle (3-1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920485750.0U CN209976748U (en) | 2019-04-11 | 2019-04-11 | S-shaped runner valveless piezoelectric pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920485750.0U CN209976748U (en) | 2019-04-11 | 2019-04-11 | S-shaped runner valveless piezoelectric pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209976748U true CN209976748U (en) | 2020-01-21 |
Family
ID=69257463
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920485750.0U Expired - Fee Related CN209976748U (en) | 2019-04-11 | 2019-04-11 | S-shaped runner valveless piezoelectric pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209976748U (en) |
-
2019
- 2019-04-11 CN CN201920485750.0U patent/CN209976748U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200121 Termination date: 20210411 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |