CN216554317U - Back pressure resistant long-life diaphragm pump - Google Patents
Back pressure resistant long-life diaphragm pump Download PDFInfo
- Publication number
- CN216554317U CN216554317U CN202123390877.0U CN202123390877U CN216554317U CN 216554317 U CN216554317 U CN 216554317U CN 202123390877 U CN202123390877 U CN 202123390877U CN 216554317 U CN216554317 U CN 216554317U
- Authority
- CN
- China
- Prior art keywords
- back pressure
- pressure resistant
- diaphragm pump
- swinging piece
- metal sleeve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The utility model provides a back pressure resistant long-life diaphragm pump which comprises a liquid inlet and outlet assembly, a driving assembly and a motor. The liquid inlet and outlet assembly comprises a diaphragm, an inlet valve and an outlet valve. The driving assembly comprises a swinging piece, a metal sleeve and a connecting shaft, the swinging piece comprises a swinging piece and a connecting part, and the edge of the swinging piece is connected with the membrane in a positioning way. The metal sleeve is positioned and arranged in the connecting part, and one end of the connecting shaft is arranged in the metal sleeve. The other end of the connecting shaft is eccentrically connected with a rotating shaft of the motor, the rotating shaft of the motor rotates to drive the connecting shaft to rotate, and then the edge of the swinging piece is driven to swing up and down through the metal sleeve, so that the diaphragm contracts and resets, and the inlet valve and the outlet valve are opened and closed. The back pressure resistant long-life diaphragm pump provided by the utility model has the advantages that one end of the connecting shaft is in friction with the metal sleeve when rotating, a swinging part can be well protected, the service life is prolonged, and the functional stability is also improved.
Description
Technical Field
The utility model relates to the technical field of diaphragm pumps, in particular to a back pressure resistant diaphragm pump with long service life.
Background
The miniature diaphragm air pump is generally applied to products in daily life, such as coffee machines, floor washers, cold compress instruments and the like. The variety and the style of the product are various, and the product is widely applied due to small size, excellent performance, low cost and good stability. In the diaphragm pump in the prior art, as the outlet end has a certain back pressure, the friction force between the swinging piece of the extrusion diaphragm and the connecting shaft is very large, and the service life of a product is influenced.
Therefore, it is desirable to provide a back pressure resistant long life diaphragm pump to solve the above problems.
SUMMERY OF THE UTILITY MODEL
The utility model provides a back pressure resistant long-life diaphragm pump, which aims to solve the technical problem that the service life of a product is influenced by very large friction force between a swinging piece of a squeezing diaphragm and a connecting shaft due to certain back pressure at an outlet end of the diaphragm pump in the prior art.
In order to solve the technical problems, the technical scheme of the utility model is as follows:
a back pressure resistant, long life diaphragm pump comprising:
the liquid inlet and outlet assembly is used for controlling the inlet and outlet of liquid and comprises a retractable and resettable diaphragm, an inlet valve for inlet liquid and an outlet valve for outlet liquid;
the driving assembly comprises a swinging piece, a metal sleeve and a connecting shaft, the swinging piece comprises a swinging piece and a connecting part, the edge of the swinging piece is connected with the membrane in a positioning way, and the edge of the swinging piece swings up and down to drive the membrane to contract and reset; the connecting part is arranged on one side of the swinging piece, and the metal sleeve is positioned in the connecting part; one end of the connecting shaft is arranged in the metal sleeve; and the number of the first and second groups,
the other end of the connecting shaft is eccentrically connected with a rotating shaft of the motor, the rotating shaft of the motor rotates to drive the connecting shaft to rotate, and then the metal sleeve drives the edge of the swinging piece to swing up and down, so that the diaphragm contracts and resets, and the inlet valve and the outlet valve are opened and closed.
In the back pressure resistant long-life diaphragm pump, one end of the metal sleeve, which is far away from the motor, is provided with a limiting edge, and the limiting edge is in limiting and abutting joint with the connecting shaft.
In the back pressure resistant long-life diaphragm pump, one end of the metal sleeve, which is far away from the motor, is of a fillet structure.
In the back pressure resistant long-life diaphragm pump, one end of the metal sleeve, which is close to the motor, is provided with a flange, and the flange is abutted against the outer surface of the connecting part.
In the back pressure resistant long-life diaphragm pump, the diaphragm is of a bowl-shaped structure, and the edge of the swinging piece is connected with the bottom of the diaphragm;
the backpressure-resistant long-life diaphragm pump further comprises a crank, the crank is fixedly connected with a rotating shaft of the motor, a positioning groove which is inclined relative to the rotating shaft of the motor is formed in the crank, and the connecting shaft is arranged in the positioning groove in an interference mode, so that the edge of the swinging piece swings up and down, and the diaphragm contracts and resets.
In the back pressure resistant long-life diaphragm pump, the positioning groove is internally provided with the rotating ball, and the rotating ball is arranged between the connecting shaft and the bottom of the positioning groove.
In the back pressure resistant long-life diaphragm pump, the number of the diaphragms is three; the edge of the swinging piece is provided with three connecting ends along the circumferential direction, and the three connecting ends are respectively connected with the bottoms of the three diaphragms.
In the back pressure resistant long-life diaphragm pump, the bottom of the diaphragm is provided with the extrusion block for extruding the diaphragm, and the connecting end is connected with the extrusion block.
In the back pressure resistant long-life diaphragm pump, the connecting end is provided with a positioning hole, the extrusion block is provided with a positioning rod, and the positioning rod is positioned in the positioning hole.
In the back pressure resistant long-life diaphragm pump, the positioning rod is provided with a convex limiting part along the circumferential direction, and the limiting part is in limiting and abutting joint with one side of the connecting end.
Compared with the prior art, the utility model has the beneficial effects that: according to the back pressure resistant long-life diaphragm pump, the metal sleeve is positioned on the connecting part of the swinging piece, so that one end of the connecting shaft is rubbed with the metal sleeve when rotating, the swinging piece can be well protected, the service life is prolonged, and the functional stability is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required in the embodiments are briefly introduced below, and the drawings in the following description are only corresponding to some embodiments of the present invention.
Fig. 1 is a schematic perspective view of a back pressure resistant long life diaphragm pump according to the present invention.
Fig. 2 is a schematic cross-sectional view of a back pressure resistant long life diaphragm pump according to the present invention.
Fig. 3 is an enlarged schematic view of a portion a in fig. 2.
Fig. 4 is an exploded view of the back pressure resistant long life diaphragm pump of the present invention.
Fig. 5 is a schematic view showing the construction of an oscillating member of the back pressure resistant long life diaphragm pump of the present invention.
Fig. 6 is a schematic sectional view showing a crank structure of the back pressure resistant long life diaphragm pump according to the present invention.
Wherein the content of the first and second substances,
11. the liquid inlet and outlet component is arranged on the upper surface of the shell,
111. the membrane is provided with a plurality of holes,
112. an inlet valve for the inlet of the air conditioner,
113. an outlet valve for the flow of the gas from the gas supply,
114. the block is extruded to be a block,
115. a positioning rod 1151, a limiting part,
12. a driving component is arranged on the base plate,
121. a swinging piece 1211, a swinging piece 12111, a connecting end 12112, a positioning hole 1212 and a connecting part,
122. a metal sleeve 1221, a limit edge 1222, a flanging,
123. a connecting shaft is connected with the upper end of the connecting rod,
13. a motor is arranged on the base plate and is provided with a motor,
14. crank 141, positioning groove.
In the drawings, elements having similar structures are denoted by the same reference numerals.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the present invention, directional terms such as "up", "down", "front", "back", "left", "right", "inner", "outer", "side", "top" and "bottom" are used only with reference to the orientation of the drawings, and the directional terms are used for illustration and understanding of the present invention, and are not intended to limit the present invention.
The terms "first," "second," and the like in the terms of the utility model are used for descriptive purposes only and not for purposes of indication or implication relative importance, nor as a limitation on the order of precedence.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the diaphragm pump in the prior art, as the outlet end has a certain back pressure, the friction force between the swinging piece of the extrusion diaphragm and the connecting shaft is very large, and the service life of a product is influenced.
The following is a preferred embodiment of the back pressure resistant long life diaphragm pump according to the present invention, which can solve the above technical problems.
Referring to fig. 1, 2, 3, 4 and 5, the present invention provides a back pressure resistant long life diaphragm pump, which includes a liquid inlet and outlet assembly 11, a driving assembly 12 and a motor 13. The liquid inlet and outlet assembly 11 is used for controlling the inlet and outlet of liquid and comprises a diaphragm 111 which can be contracted and reset, an inlet valve 112 for inlet liquid and an outlet valve 113 for outlet liquid. The driving assembly 12 includes a swinging member 121, a metal sleeve 122, and a connecting shaft 123. The swinging member 121 includes a swinging piece 1211 and a connecting portion 1212, the edge of the swinging piece 1211 is connected to the diaphragm 111 in a positioning manner, and the edge of the swinging piece 1211 swings up and down to drive the diaphragm 111 to contract and reset. The connecting portion 1212 is provided on one side of the swing tab 1211, and the metal cover 122 is positioned in the connecting portion 1212. One end of the connecting shaft 123 is disposed in the metal sheath 122, and the other end of the connecting shaft 123 is eccentrically connected to the rotation shaft of the motor 13. The rotation shaft of the motor 13 rotates to drive the connection shaft 123 to rotate, and further, the edge of the swing plate 1211 is driven to swing up and down through the metal sleeve 122, so that the diaphragm 111 is contracted and reset, and the inlet valve 112 and the outlet valve 113 are opened and closed.
According to the back pressure resistant long-life diaphragm pump, the metal sleeve 122 is positioned on the connecting part 1212 of the swinging piece 121, so that one end of the connecting shaft 123 is rubbed with the metal sleeve 122 when rotating, the swinging piece 121 can be well protected, the service life is prolonged, and the functional stability is improved.
Please refer to fig. 3 and fig. 2. One end of the metal sleeve 122, which is far away from the motor 13, is provided with a limiting edge 1221, and the limiting edge 1221 is in limiting abutment with the connecting shaft 123. This structure can prevent the metal sheath 122 from falling out of the connecting portion 1212.
Please continue to refer to fig. 3, and also refer to fig. 2. An end of the metal sleeve 122 away from the motor 13 is provided with a rounded structure, which facilitates the insertion of the metal sleeve 122 into the connecting portion 1212.
Please continue to refer to fig. 3, and also refer to fig. 2. One end of the metal sleeve 122 close to the motor 13 is provided with a flange 1222, and the flange 1222 abuts against the outer surface of the connecting portion 1212. In this configuration, the flange 1222 can surround the connecting portion 1212, so that the metal sleeve 122 can be more stably engaged with the swinging member 121.
Referring to fig. 2 and 6, the diaphragm 111 is configured as a bowl-shaped structure, and the edge of the swinging plate 1211 is connected to the bottom of the diaphragm 111. The back pressure resistant long life diaphragm pump further comprises a crank 14 fixedly connected with the rotating shaft of the motor 13, a positioning groove 141 inclined relative to the rotating shaft of the motor 13 is arranged on the crank 14, and the connecting shaft 123 is arranged in the positioning groove 141 in an interference manner, so that the edge of the swinging sheet 1211 swings up and down, and the diaphragm 111 contracts and resets. By adopting the structure, the liquid can be smoothly and stably fed and discharged.
A rotary ball (not shown) is provided in the positioning groove 141, and is disposed between the connecting shaft 123 and the bottom of the positioning groove 141. This structure can prevent friction from being generated between the connecting shaft 123 and the bottom of the positioning groove 141.
Referring to fig. 2 and 5, the number of the diaphragms 111 is three, the edge of the swing plate 1211 is provided with three connection ends 12111 along the circumferential direction thereof, and the three connection ends 12111 are respectively connected to the bottoms of the three diaphragms 111. The structure can effectively improve the efficiency of liquid inlet and outlet.
Referring to fig. 2, 4 and 5, the bottom of the membrane 111 is provided with a pressing block 114 for pressing the membrane 111, and the connection end 12111 is connected to the pressing block 114. The structure further improves the efficiency of liquid inlet and outlet.
Please refer to fig. 4 and fig. 5, in conjunction with fig. 2. The connecting end 12111 is provided with a positioning hole 12112, the extrusion block 114 is provided with a positioning rod 115, and the positioning rod 115 is positioned in the positioning hole 12112. This structure stabilizes the connection of the diaphragm 111 and the swinging member 121.
Please refer to fig. 4, and please refer to fig. 2 and fig. 5 simultaneously. The positioning rod 115 is provided with a protruding stopper 1151 along the circumferential direction thereof, and the stopper 1151 is in stopper abutment with one side of the connecting end 12111. This structure further stabilizes the connection of the diaphragm 111 and the oscillating member 121.
The working principle of the back pressure resistant long-life diaphragm pump is as follows:
the rotation shaft of the motor 13 rotates to drive the crank 14 to rotate, so as to drive the connecting shaft 123 to rotate, and further to make the three connecting ends 12111 of the oscillating member 121 oscillate up and down periodically, thereby controlling the diaphragm 111 to contract or reset. When diaphragm 111 contracts, outlet valve 113 opens, inlet valve 112 closes, and liquid flows out through outlet valve 113; when the diaphragm 111 is reset, the inlet valve 112 is opened, the outlet valve 113 is closed, and liquid flows in through the inlet valve 112.
The above is the working principle of the back pressure resistant long-life diaphragm pump of the preferred embodiment.
According to the back pressure resistant long-life diaphragm pump, the metal sleeve 122 is positioned on the connecting part 1212 of the swinging piece 121, so that one end of the connecting shaft 123 is rubbed with the metal sleeve 122 when rotating, the swinging piece 121 can be well protected, the service life is prolonged, and the functional stability is improved.
In summary, although the present invention has been described with reference to the preferred embodiments, the above-described preferred embodiments are not intended to limit the present invention, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, therefore, the scope of the present invention shall be determined by the appended claims.
Claims (10)
1. A back pressure resistant, long life diaphragm pump comprising:
the liquid inlet and outlet assembly is used for controlling the inlet and outlet of liquid and comprises a retractable and resettable diaphragm, an inlet valve for inlet liquid and an outlet valve for outlet liquid;
the driving assembly comprises a swinging piece, a metal sleeve and a connecting shaft, the swinging piece comprises a swinging piece and a connecting part, the edge of the swinging piece is connected with the membrane in a positioning way, and the edge of the swinging piece swings up and down to drive the membrane to contract and reset; the connecting part is arranged on one side of the swinging piece, and the metal sleeve is positioned in the connecting part; one end of the connecting shaft is arranged in the metal sleeve; and the number of the first and second groups,
the other end of the connecting shaft is eccentrically connected with a rotating shaft of the motor, the rotating shaft of the motor rotates to drive the connecting shaft to rotate, and then the metal sleeve drives the edge of the swinging piece to swing up and down, so that the diaphragm contracts and resets, and the inlet valve and the outlet valve are opened and closed.
2. The back pressure resistant long-life diaphragm pump according to claim 1, wherein a limiting edge is disposed at an end of the metal sleeve away from the motor, and the limiting edge is in limiting abutment with the connecting shaft.
3. The back pressure resistant long life diaphragm pump of claim 2 wherein the end of said metal sleeve distal from said motor is provided in a rounded configuration.
4. The back pressure resistant long life diaphragm pump of claim 1, wherein one end of the metal sleeve near the motor is provided with a flange, and the flange abuts against the outer surface of the connecting portion.
5. The back pressure resistant, long life diaphragm pump of claim 1 wherein said diaphragm is provided as a bowl, the edge of said wobble plate being attached to the bottom of said diaphragm;
the backpressure-resistant long-life diaphragm pump further comprises a crank, the crank is fixedly connected with a rotating shaft of the motor, a positioning groove which is inclined relative to the rotating shaft of the motor is formed in the crank, and the connecting shaft is arranged in the positioning groove in an interference mode, so that the edge of the swinging piece swings up and down, and the diaphragm contracts and resets.
6. The back pressure resistant long life diaphragm pump of claim 5 wherein a rotating ball is disposed within said detent, said rotating ball being disposed between said connecting shaft and a bottom of said detent.
7. The back pressure resistant high life diaphragm pump of claim 5 wherein said diaphragms are provided in three; the edge of the swinging piece is provided with three connecting ends along the circumferential direction, and the three connecting ends are respectively connected with the bottoms of the three diaphragms.
8. The back pressure resistant long life diaphragm pump of claim 7 wherein said diaphragm bottom is provided with a squeeze block for squeezing said diaphragm, said connection end being connected to said squeeze block.
9. The back pressure resistant long life diaphragm pump of claim 8 wherein said connection end is provided with a locating hole and said extrusion block is provided with a locating rod, said locating rod being located in said locating hole.
10. The back pressure resistant long life diaphragm pump of claim 9, wherein said positioning rod is provided with a protruding limit portion along its circumference, said limit portion being in limit abutment with one side of said connection end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123390877.0U CN216554317U (en) | 2021-12-29 | 2021-12-29 | Back pressure resistant long-life diaphragm pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123390877.0U CN216554317U (en) | 2021-12-29 | 2021-12-29 | Back pressure resistant long-life diaphragm pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216554317U true CN216554317U (en) | 2022-05-17 |
Family
ID=81558757
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123390877.0U Active CN216554317U (en) | 2021-12-29 | 2021-12-29 | Back pressure resistant long-life diaphragm pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216554317U (en) |
-
2021
- 2021-12-29 CN CN202123390877.0U patent/CN216554317U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP3093492B1 (en) | Valve clack and air pump having same | |
| EP0210315B1 (en) | Diaphragm pump, particularly with three working chambers | |
| US6048183A (en) | Diaphragm pump with modified valves | |
| CN106907348B (en) | Impeller and pump using same | |
| US5704774A (en) | Pump with twin cylindrical impellers | |
| CN216554317U (en) | Back pressure resistant long-life diaphragm pump | |
| JP2004511724A (en) | Membrane pump with support ring | |
| JP4131459B2 (en) | Diaphragm pump for liquid | |
| US11499567B2 (en) | Multipurpose transfer pump free of secondary water filling | |
| JP3874561B2 (en) | Drainage pump | |
| CN215805083U (en) | Miniature water pump | |
| CN215979845U (en) | One-way valve, water pump of tooth flushing device and tooth flushing device | |
| CN110822084B (en) | Sealing member and engine | |
| CN106381632B (en) | Air pump for washing machine and washing machine with same | |
| CN216171459U (en) | Micro mixed foam pump | |
| CN209818259U (en) | Diaphragm pump and pump head structure thereof | |
| CN217900015U (en) | Air conditioner | |
| CN114352541B (en) | Pump with a pump body | |
| CN220706031U (en) | Impeller for fan filter unit | |
| CN215805082U (en) | Miniature water pump | |
| CN114776549A (en) | Positive displacement piezoelectric micro-flow pump | |
| US6435852B1 (en) | Rotary pump | |
| CN219795514U (en) | High-pressure miniature diaphragm pump | |
| CN218030619U (en) | Compression assembly and compressor with same | |
| CN215333456U (en) | Single-machine multi-stage miniature water pump capable of saving space |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |