CN115163476A - Buffering and noise-reducing structure of diaphragm booster pump - Google Patents
Buffering and noise-reducing structure of diaphragm booster pump Download PDFInfo
- Publication number
- CN115163476A CN115163476A CN202110362418.7A CN202110362418A CN115163476A CN 115163476 A CN115163476 A CN 115163476A CN 202110362418 A CN202110362418 A CN 202110362418A CN 115163476 A CN115163476 A CN 115163476A
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- Prior art keywords
- buffer
- built
- cavity
- booster pump
- top cover
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- 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.)
- Pending
Links
- 230000003139 buffering effect Effects 0.000 title claims abstract description 26
- 239000000872 buffer Substances 0.000 claims abstract description 106
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 72
- 238000003780 insertion Methods 0.000 claims description 10
- 230000037431 insertion Effects 0.000 claims description 10
- 238000007789 sealing Methods 0.000 claims description 6
- 230000000694 effects Effects 0.000 abstract description 8
- 239000012530 fluid Substances 0.000 abstract description 6
- 238000010521 absorption reaction Methods 0.000 abstract description 3
- 230000002238 attenuated effect Effects 0.000 description 5
- 230000000903 blocking effect Effects 0.000 description 4
- 230000004308 accommodation Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000019994 cava Nutrition 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/001—Noise damping
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B43/00—Machines, pumps, or pumping installations having flexible working members
- F04B43/02—Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms
- F04B43/04—Pumps having electric drive
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/10—Valves; Arrangement of valves
- F04B53/102—Disc valves
Abstract
The invention discloses a buffering and noise reducing structure of a diaphragm booster pump, and aims to solve the problems that in the prior art, water flow in a high-pressure cavity of the diaphragm booster pump generates pulses along with the water flow, the water flow is conducted to a water outlet, and a water outlet of the pump generates vibration and noise along with the pulses. The buffer noise reduction structure is arranged between the high-pressure cavity of the fluid chamber and the diaphragm chamber, and comprises a buffer cavity arranged in the high-pressure cavity, wherein the water inlet end of the buffer cavity is communicated with the high-pressure cavity, and the water outlet end of the buffer cavity is communicated with the water outlet of the diaphragm booster pump; a plurality of buffer grooves are arranged on the surface opposite to the water inlet end of the buffer cavity; the built-in valve block arranged in the buffer cavity is positioned on the surface opposite to the water inlet end of the buffer cavity so as to cover the notch of the buffer groove and form a buffer cavity between the built-in valve block and the groove bottom of the buffer groove. The built-in valve block has elasticity, and when receiving rivers impact, the position that built-in valve block corresponds to the buffering recess can be to the sunken in buffering recess to can play the effect of absorption pulse, reduction vibration.
Description
Technical Field
The invention relates to a buffer noise reduction structure of a diaphragm booster pump, which has obvious effect on reducing vibration, noise and the like generated when the diaphragm booster pump works.
Background
As is known, a piston frame assembly is driven by an output shaft of a motor of a diaphragm booster pump, the piston frame assembly drives a piston to perform deflection motion, valve plates of cavities in a pump head are opened and closed in turn and are specifically connected with a high-pressure cavity connected with a water outlet, a discharge valve of the high-pressure cavity is divided into n parts according to the cavity of the pump head, each part is connected with one cavity, when the piston is pushed upwards, a corresponding part of the discharge valve is opened, water enters the high-pressure cavity, when the piston is pulled downwards, the corresponding part of the discharge valve is closed, meanwhile, the piston of the adjacent cavity is pushed upwards, the corresponding part of the discharge valve is opened, water enters the high-pressure cavity, the circulation is carried out in such a cycle manner, water continuously enters the high-pressure cavity, the opening and closing cycles of the valve plates are carried out, water flow in the high-pressure cavity is pulsed along with the opening and closing of the valve plates, the water in the high-pressure cavity is connected with the water outlet, the pulses are also transmitted to the water outlet, and vibration and noise appear along with the pulses.
Disclosure of Invention
The invention aims to overcome the problems in the prior art and provides a buffer noise reduction structure of a diaphragm booster pump, which absorbs pulses and reduces vibration and noise.
In order to realize the purpose, the invention adopts the following technical scheme:
the invention relates to a buffer noise reduction structure of a diaphragm booster pump, which comprises:
the water inlet end of the buffer cavity is communicated with the high-pressure cavity, and the water outlet end of the buffer cavity is communicated with the water outlet of the diaphragm booster pump; a plurality of buffer grooves are arranged on the surface opposite to the water inlet end of the buffer cavity;
the built-in valve block arranged in the buffer cavity is positioned on the surface opposite to the water inlet end of the buffer cavity so as to cover the notch of the buffer groove and form a buffer cavity between the built-in valve block and the groove bottom of the buffer groove.
The built-in valve block has elasticity, and when receiving rivers impact, the position that built-in valve block corresponds to the buffering recess can be to the buffering recess internal depression to can play the absorption pulse, reduce the effect of vibration.
Preferably, a section of buffering filter screen pipe is vertically arranged inside the buffering cavity, so that the pulse can be further reduced, and the vibration is reduced.
Preferably, the buffer cavity is internally provided with a built-in top cover, the bottom of the built-in top cover is provided with a plurality of through holes used as water inlets of the buffer cavity, and the pulses of water flow entering the buffer cavity are attenuated to a certain extent by utilizing the blocking effect of the built-in top cover.
Preferably, the upper end of the built-in top cover is provided with a support frame, and the top end of the support frame is abutted against the built-in valve plate, so that the stability of the built-in valve plate under water flow impact can be guaranteed.
Preferably, an accommodating space is formed inside the support frame and is communicated with an external space of the support frame, and a buffering filter screen pipe is arranged in the accommodating space of the support frame and can be used for further reducing pulse and vibration.
Preferably, the support frame includes a plurality of support columns evenly distributed on the top surface of the built-in top cover and a support ring erected at the top end of the support columns, the support ring and the support columns form a cylindrical accommodating space, and the structure is simple.
Preferably, an annular groove is formed in the side face of the built-in top cover, an O-shaped ring is sleeved in the annular groove and used for sealing a gap between the inner wall of the buffer cavity and the built-in top cover, and therefore high-pressure water in the high-pressure cavity can enter the buffer cavity through the through hole in the built-in top cover and only can enter the buffer cavity through the through hole in the built-in top cover.
Preferably, the built-in top cover is provided with the convex rib, and the side wall of the buffer cavity is provided with the positioning notch corresponding to the convex rib, so that the built-in top cover is convenient to position and mount on one hand, and on the other hand, the built-in top cover can be prevented from displacing in the buffer cavity under water flow impact, and extra noise and vibration are caused.
Preferably, a circle of insertion groove matched with the shape of the bottom edge of the side wall of the high-pressure cavity is arranged at a water outlet of a diaphragm chamber surrounding the diaphragm booster pump, a sealing ring is arranged in the insertion groove, and the bottom edge of the side wall of the high-pressure cavity is embedded into the insertion groove, so that water flow in the high-pressure cavity is prevented from leaking.
Preferably, the diaphragm chamber is provided with a plurality of limiting columns for supporting the bottom of the built-in top cover, so that the built-in top cover is positioned in the buffer cavity in the vertical direction, namely, the limiting columns are used for supporting the bottom of the built-in top cover, the upper end of the built-in top cover abuts against the built-in valve plate, the other side of the built-in valve plate abuts against the buffer groove, and meanwhile, the built-in top cover and the built-in valve plate are positioned.
Preferably, the edge surrounding the built-in valve plate is provided with an annular bulge, the surface opposite to the water inlet end of the buffer cavity is provided with a circular groove, and the annular bulge is embedded into the circular groove, so that the built-in valve plate can be reliably positioned relative to the buffer cavity and cannot move along the radial direction of the buffer cavity.
The invention has the following beneficial effects: (1) The buffer cavity is communicated with the high-pressure cavity and the water outlet of the fluid chamber (the water outlet of the diaphragm booster pump) at the same time, a buffer area is formed in the high-pressure cavity, the pulse of the water flow with the pulse is attenuated after the buffer cavity buffers, the vibration of the pump head is reduced along with the pulse, and the water flow can become more stable when reaching the water outlet, so that the effect of reducing the vibration of the water outlet is achieved. (2) The built-in valve block has certain elasticity, and when receiving rivers impact, the position that built-in valve block corresponds to the buffering recess can be to the sunken in buffering recess to can play the effect of absorption pulse, reduction vibration. (3) The buffering filter screen pipe can be arranged in the buffering cavity, so that the effects of eliminating pulses and reducing vibration can be achieved. (4) The high-pressure water flow in the high-pressure cavity can only enter the buffer cavity through the through hole of the built-in top cover, and the pulse of the water flow entering the buffer cavity is attenuated to a certain extent by utilizing the blocking effect of the built-in top cover.
Drawings
FIG. 1 is an assembled cross-sectional view of an embodiment of the present application.
Fig. 2 is an assembled cross-sectional view from another perspective in accordance with an embodiment of the present application.
Fig. 3 is an exploded perspective view of an embodiment of the present application.
FIG. 4 is a schematic view of a fluid chamber according to an embodiment of the present application.
FIG. 5 is a schematic view of a diaphragm chamber according to an embodiment of the present application.
FIG. 6 is a schematic view of a built-in top cover according to an embodiment of the present application.
Fig. 7 is another schematic view of the built-in top cover according to the embodiment of the present application.
FIG. 8 is a schematic view of a built-in valve sheet according to an embodiment of the present application.
The figure is marked with: 1. a fluid chamber; 2. a built-in top cover; 3. a diaphragm chamber; 4. a high pressure chamber; 5. a discharge valve; 6. an O-shaped ring; 7. a valve plate is arranged inside; 8. buffering the filter screen pipe; 9. a water outlet; 101. positioning the notch; 102. a circular groove; 103. a buffer groove; 104. a buffer chamber; 105. a buffer chamber sidewall; 106. a high pressure chamber sidewall; 201. the bottom of the built-in top cover; 202. a rib is protruded; 203. an annular groove; 204. a through hole; 205. a support frame; 206. a support ring; 207. a support pillar; 301. a limiting column; 302. inserting grooves; 701. an annular protrusion.
Detailed Description
The invention is further described with reference to the following figures and detailed description.
As shown in fig. 1, 2, 3 and 5, a buffering and noise-reducing structure of a diaphragm booster pump according to the present invention is disposed between a fluid chamber 1 and a diaphragm chamber 3 of the diaphragm booster pump. A circle of insertion groove 302 is arranged around the periphery of the water outlet of the diaphragm chamber 3, a sealing ring is arranged in the insertion groove, a circle of high-pressure chamber side wall 106 matched with the insertion groove 302 is arranged in the fluid chamber 1, the bottom edge of the high-pressure chamber side wall is embedded into the insertion groove 302, a high-pressure chamber 4 is formed between the high-pressure chamber side wall 106 and the diaphragm chamber 3, and water flow in the high-pressure chamber 4 is prevented from leaking. The buffering noise reduction structure comprises a buffering cavity 104 arranged in the high-pressure cavity 4 and an elastic built-in valve plate 7. The diaphragm chamber 3 is provided with a discharge valve 5.
As shown in fig. 1 and 4, a cylindrical buffer chamber side wall 105 is arranged in the high-pressure chamber 4 to form a buffer chamber 104 with an open bottom (as a water inlet end of the buffer chamber), the water inlet end of the buffer chamber is communicated with the high-pressure chamber 4, and the water outlet end of the buffer chamber is communicated with the water outlet 9 of the diaphragm booster pump. The top surface (the surface opposite to the water inlet end of the buffer cavity) of the buffer cavity 104 is provided with a circle of circular grooves 102 and a plurality of buffer grooves 103 arranged in a grid shape in the area surrounded by the circular grooves 102 (within the optional range of the skilled person, the buffer grooves may also be arranged in other shapes such as concentric circular ring shape). As shown in fig. 2, in the present embodiment, the buffer chamber sidewall 105 and the high pressure chamber sidewall 106 are partially shared.
As shown in fig. 1 and 8, the internal valve plate 7 is in a shape of a circular disc, and a ring of annular protrusions 701 is provided around the edge of the internal valve plate 7. The built-in valve plate 7 is buckled on the top surface of the buffer cavity 104, covers the notch of the buffer groove 103 and forms a buffer cavity between the built-in valve plate 7 and the groove bottom of the buffer groove 103; at this time, the annular protrusion 701 on the top surface side of the internal valve sheet 7 is inserted into the circular groove 102, so that the internal valve sheet 7 can be reliably positioned with respect to the buffer chamber 104 without moving in the radial direction. And the side wall 105 of the buffer cavity 104 is opened below the built-in valve plate 7 and is communicated with the water outlet 9 of the diaphragm booster pump.
Further, as shown in fig. 1, fig. 6, and fig. 7, a built-in top cover 2 is arranged in the buffer cavity 104, a plurality of through holes 204 are formed in the bottom 201 of the built-in top cover, an annular groove 203 is formed in the side surface of the built-in top cover 2, an O-ring 6 is sleeved in the annular groove 203, and the O-ring 6 is used for sealing a gap between the inner wall of the buffer cavity 104 and the built-in top cover 2, so that high-pressure water in the high-pressure cavity 4 enters the buffer cavity 104 through the through holes 204 in the built-in top cover 2 and only can enter the buffer cavity 104 through the through holes 204 in the built-in top cover 2, and certain blocking effect is utilized to attenuate pulses of water flow entering the buffer cavity 104.
Furthermore, the upper end of the built-in top cover 2 is provided with a support frame 205, and the top end of the support frame is abutted against the built-in valve plate 7. Specifically, the supporting frame 205 includes a plurality of supporting pillars 207 uniformly distributed on the top surface of the built-in top cap 2, and a supporting ring 206 erected on the top end of the supporting pillars 207, the supporting ring 206 abuts against the bottom surface of the built-in valve plate 7, and the outer wall of the supporting ring is in interference fit with the annular protrusion 701 on one side of the bottom surface of the built-in valve plate 7. The support ring 206 and the support column 207 form a cylindrical accommodation space (communicated with the external space of the support frame 205), a section of buffer filter screen pipe 8 is vertically arranged in the accommodation space, and two end faces of the buffer filter screen pipe respectively abut against the bottom surface of the built-in valve plate 7 and the top surface of the built-in top cover 2 to realize fixation. The buffering filter screen pipe can play a role in stabilizing flow, so that pulse is further reduced, and vibration is reduced.
The side surface of the bottom of the built-in top cover 2 is provided with a convex rib 202, and the side wall 105 of the buffer cavity 104 is provided with a positioning notch 101 corresponding to the convex rib 202. The rib 202 is matched with the positioning notch 101, so that the positioning and installation of the built-in top cover 2 are facilitated on one hand, and the built-in top cover 2 can be prevented from displacing in the buffer cavity 104 under the impact of water flow to cause extra noise and vibration on the other hand.
As shown in fig. 5, a plurality of limiting posts 301 for supporting the bottom 201 of the built-in top cover are arranged on the diaphragm chamber 3, so as to ensure the vertical positioning of the built-in top cover 2 in the buffer cavity 104, that is, the limiting posts 301 are used for supporting the bottom 201 of the built-in top cover, so that the supporting frame 205 at the upper end of the built-in top cover 2 is abutted against the bottom surface of the built-in valve plate 7, the top surface of the built-in valve plate 7 is abutted against the buffer groove 103, the notch of the buffer groove 103 is sealed, and the positioning of the built-in top cover 2 and the built-in valve plate 7 is realized at the same time.
High-pressure water in the high-pressure cavity 4 enters the buffer cavity 104 through the through hole 204, and in the process, the pulse of the water flow entering the buffer cavity 104 is attenuated for the first time by using the blocking effect of the built-in top cover 2 (but the water flow can still enter the buffer cavity through the through hole); after water flow enters the buffer cavity 104, the water flow can impact the built-in valve plate 7, and because the built-in valve plate 7 has elasticity, when the water flow impacts, the part of the built-in valve plate 7 corresponding to the buffer groove 103 can be sunken into the buffer groove 103, so that the pulse can be absorbed, the vibration can be reduced, and the secondary attenuation can be realized; in the process that water flows into the water outlet 9 from the buffer cavity 104, the water flow is further stabilized through the buffer filter screen pipe 8, and third attenuation is realized; after the water flow pulse is attenuated by the three times, the vibration of the pump head is reduced, and the water flow can be more stable when reaching the water outlet 9, so that the effect of reducing the vibration of the water outlet 9 is achieved.
Claims (10)
1. The utility model provides a structure of making an uproar falls in buffering of diaphragm booster pump which characterized in that includes:
the water inlet end of the buffer cavity (104) is communicated with the high-pressure cavity (4), and the water outlet end of the buffer cavity is communicated with the water outlet (9) of the diaphragm booster pump; a plurality of buffer grooves (103) are arranged on the surface opposite to the water inlet end of the buffer cavity (104);
the built-in valve plate (7) arranged in the buffer cavity (104) is positioned on the surface opposite to the water inlet end of the buffer cavity (104), covers the notch of the buffer groove (103), and forms a buffer cavity between the built-in valve plate (7) and the groove bottom of the buffer groove (103).
2. The buffer noise reduction structure of the diaphragm booster pump according to claim 1, wherein: and a section of buffering filter screen pipe (8) is vertically arranged in the buffering cavity (104).
3. The buffer noise reduction structure of a diaphragm booster pump according to claim 1, wherein: the buffer cavity (104) is internally provided with a built-in top cover (2), and the bottom of the built-in top cover (2) is provided with a plurality of through holes (204) which are used as water inlets of the buffer cavity (104).
4. The buffer noise reduction structure of the diaphragm booster pump according to claim 3, wherein: the upper end of the built-in top cover (2) is provided with a support frame (205), and the top end of the support frame is abutted against the built-in valve plate (7).
5. The buffer noise reduction structure of a diaphragm booster pump according to claim 4, wherein: an accommodating space is formed inside the support frame (205), the accommodating space is communicated with the external space of the support frame (205), and a buffering filter screen pipe (8) is arranged in the accommodating space of the support frame (205).
6. The buffer noise reduction structure of a diaphragm booster pump according to claim 4, wherein: the supporting frame (205) comprises a plurality of supporting columns (207) which are uniformly distributed on the top surface of the built-in top cover (2) and a supporting ring (206) erected at the top end of each supporting column (207), and the supporting rings (206) and the supporting columns (207) form a cylindrical accommodating space.
7. The buffer noise reduction structure of a diaphragm booster pump according to claim 3, wherein: the side face of the built-in top cover (2) is provided with an annular groove (203), an O-shaped ring (6) is sleeved in the annular groove (203), and the O-shaped ring (6) is used for sealing a gap between the inner wall of the buffer cavity (104) and the built-in top cover (2).
8. The buffer noise reduction structure of a diaphragm booster pump according to claim 3, wherein: the built-in top cover (2) is provided with a convex rib (202), and the side wall (105) of the buffer cavity (104) is provided with a positioning notch (101) corresponding to the convex rib (202).
9. The buffer noise reduction structure of a diaphragm booster pump according to claim 3, wherein: a circle of insertion groove (302) matched with the shape of the bottom edge of the side wall of the high-pressure cavity (4) is arranged at a water outlet of a diaphragm chamber (3) surrounding the diaphragm booster pump, a sealing ring is arranged in the insertion groove, and the bottom edge of the side wall of the high-pressure cavity (4) is embedded into the insertion groove (302); and a plurality of limiting columns (301) for supporting the bottom of the built-in top cover (2) are arranged on the diaphragm chamber (3).
10. The buffer noise reduction structure of a diaphragm booster pump according to claim 1, wherein: an annular protrusion (701) is arranged around the edge of the built-in valve plate (7), a circular groove (102) is arranged on the surface opposite to the water inlet end of the buffer cavity (104), and the annular protrusion (701) is embedded into the circular groove (102).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110362418.7A CN115163476A (en) | 2021-04-02 | 2021-04-02 | Buffering and noise-reducing structure of diaphragm booster pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110362418.7A CN115163476A (en) | 2021-04-02 | 2021-04-02 | Buffering and noise-reducing structure of diaphragm booster pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115163476A true CN115163476A (en) | 2022-10-11 |
Family
ID=83475566
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110362418.7A Pending CN115163476A (en) | 2021-04-02 | 2021-04-02 | Buffering and noise-reducing structure of diaphragm booster pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115163476A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105386966A (en) * | 2015-12-16 | 2016-03-09 | 武汉工程大学 | Micro diaphragm pump |
| CN105864026A (en) * | 2016-05-25 | 2016-08-17 | 厦门建霖工业有限公司 | Built-in low-pulse and low-vibration type pump assembly and water purifier and working method |
| CN207437459U (en) * | 2017-09-29 | 2018-06-01 | 中山市史麦斯净水科技有限公司 | Water-driven box with Vibrant buffer function |
| CN110259669A (en) * | 2019-07-23 | 2019-09-20 | 佛山市沛力电器科技有限公司 | Intracavitary damping structure diaphragm pump |
| US20200149526A1 (en) * | 2018-11-10 | 2020-05-14 | Xiamen Koge Micro Tech Co., Ltd. | Quick-Exhaust Diaphragm Pump |
-
2021
- 2021-04-02 CN CN202110362418.7A patent/CN115163476A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105386966A (en) * | 2015-12-16 | 2016-03-09 | 武汉工程大学 | Micro diaphragm pump |
| CN105864026A (en) * | 2016-05-25 | 2016-08-17 | 厦门建霖工业有限公司 | Built-in low-pulse and low-vibration type pump assembly and water purifier and working method |
| CN207437459U (en) * | 2017-09-29 | 2018-06-01 | 中山市史麦斯净水科技有限公司 | Water-driven box with Vibrant buffer function |
| US20200149526A1 (en) * | 2018-11-10 | 2020-05-14 | Xiamen Koge Micro Tech Co., Ltd. | Quick-Exhaust Diaphragm Pump |
| CN110259669A (en) * | 2019-07-23 | 2019-09-20 | 佛山市沛力电器科技有限公司 | Intracavitary damping structure diaphragm pump |
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