CN114508484A - High-flow low-noise reciprocating piston pump - Google Patents
High-flow low-noise reciprocating piston pump Download PDFInfo
- Publication number
- CN114508484A CN114508484A CN202210195892.XA CN202210195892A CN114508484A CN 114508484 A CN114508484 A CN 114508484A CN 202210195892 A CN202210195892 A CN 202210195892A CN 114508484 A CN114508484 A CN 114508484A
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- Prior art keywords
- water inlet
- pump body
- cavity
- pump
- wall
- 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.)
- Pending
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 81
- 238000007789 sealing Methods 0.000 claims abstract description 33
- 238000009434 installation Methods 0.000 claims abstract description 19
- 238000001914 filtration Methods 0.000 claims abstract description 8
- 239000010985 leather Substances 0.000 claims abstract description 8
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- 229910000805 Pig iron Inorganic materials 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 4
- 238000004140 cleaning Methods 0.000 abstract description 3
- 238000002955 isolation Methods 0.000 description 5
- 230000033001 locomotion Effects 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 235000011114 ammonium hydroxide Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000032258 transport 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
- F04B53/20—Filtering
-
- 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
- F04B53/001—Noise damping
-
- 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
- F04B53/22—Arrangements for enabling ready assembly or disassembly
Abstract
The invention discloses a high-flow low-noise reciprocating piston pump in the field of piston pumps, which comprises a pump body, wherein a water inlet device is arranged at the bottom end of the pump body, and the water inlet device comprises a top water inlet hole formed in the top end of the water inlet device, a water inlet filtering square hole formed on the periphery of the water inlet device, an installation groove formed on the periphery of the bottom end of the water inlet device, a sealing leather gasket glued with the inside of the installation groove, and a filtering net ring arranged inside the installation groove. According to the invention, the filter screen ring is clamped and fixed in the mounting groove and matched with the water inlet filtering square hole, so that a water source entering the pump body can be efficiently filtered, the filter screen ring and the bottom sealing plate can be detached to rapidly clean the filter screen ring when the filter screen ring needs to be cleaned, the cleaning process is extremely convenient and efficient, and trouble and worry are saved.
Description
Technical Field
The invention relates to the field of piston pumps, in particular to a high-flow low-noise reciprocating piston pump.
Background
The piston pump is also called an electric reciprocating pump, and is structurally divided into a single cylinder and a plurality of cylinders, and is characterized by high lift. It is suitable for transporting oil emulsion without solid particles at normal temperature. The device is used for water injection, oil injection and oil extraction of oil fields and coal seams; power pump of hydraulic press of chamber press, hydraulic sand cleaning, ammonia liquor delivery in fertilizer plant, etc. If the overflowing component is made of stainless steel, corrosive liquid can be conveyed, and high-temperature tar, slime, high-concentration mortar, high-viscosity liquid and the like can be conveyed according to different structural materials.
However, when the existing reciprocating piston pump filters a medium, the filter screen needs to be cleaned, which is extremely troublesome and impractical, and the piston pump has low working efficiency and high noise. Accordingly, those skilled in the art have provided a high flow rate low noise reciprocating piston pump to solve the problems set forth in the background art described above.
Disclosure of Invention
The present invention aims to provide a high flow rate low noise reciprocating piston pump to solve the problems set forth in the background art.
In order to achieve the purpose, the invention provides the following technical scheme:
reciprocating piston pump of large-traffic low noise, which comprises a pump body, pump body bottom is provided with water installations, water installations is including seting up in the top inlet opening on water installations top, seting up in the outlying filtration square hole of intaking, seting up in the outlying mounting groove of water installations bottom, splice with the inside sealed leather packing of mounting groove installs the inside filter screen circle of mounting groove is fixed the bottom closing plate of filter screen circle bottom, the bottom closing plate with water installations passes through the mounting screw, filter screen circle card pressure seal is in inside the mounting groove in the sealed leather packing, water installations with the pump body passes through the mounting screw seal.
As a further scheme of the invention: one side of the pump body is located on one side of the upper portion of the water inlet device and is fixedly provided with a balancing weight, the top end of the pump body is provided with a power motor through a screw, and the pump body is provided with a water outlet pipe integrally formed on one side of the water inlet device.
As a further scheme of the invention: the pump body is internally and integrally formed with a hollow piston sleeve, a cavity isolation plate is integrally formed between the middle of the outer wall of the hollow piston sleeve and the inner wall of the pump body, the hollow piston sleeve and the inner wall of the pump body are located above the cavity isolation plate and are provided with a water outlet cavity, and the hollow piston sleeve and the inner wall of the pump body are located between the cavity isolation plate and provided with a water inlet cavity below the cavity isolation plate.
As a further scheme of the invention: the two ends of the outer wall of the hollow piston sleeve are located on the water inlet cavity and one side of the water outlet cavity, and one-way valves are installed on one sides of the water inlet cavity and one sides of the water outlet cavity, and the flow direction of the one-way valves is from the water inlet cavity to one end of the water outlet cavity.
As a further scheme of the invention: the sealing piston is arranged inside the hollow piston sleeve and connected with the inner wall of the hollow piston sleeve in a sliding and sealing mode, a telescopic sleeve is fixedly mounted at one end of the sealing piston, and a rotating shaft is arranged inside the telescopic sleeve.
As a further scheme of the invention: the output shaft of motor power passes behind the pump body top with the pivot passes through the coupling joint, the cam groove has been seted up on the flexible cover inner wall, the end to end of cam groove.
As a further scheme of the invention: fixed mounting has on the pivot outer wall to be located the inside rotation support column of cam groove, rotation support column outer wall with be provided with the bearing between the cam groove, the rotation support column with the cam groove passes through bearing roll connection.
As a further scheme of the invention: the outer wall of the telescopic sleeve is provided with a guide sealing baffle fixed on the inner wall of the pump body, and the guide sealing baffle is connected with the telescopic sleeve in a sliding and sealing manner.
As a further scheme of the invention: the water inlet device is characterized in that handles are arranged on two sides of the water outlet pipe, the handles are connected with the water outlet pipe in a rotating mode, and the top surface of the water outlet pipe is parallel to the bottom surface of the water inlet device.
As a further scheme of the invention: the pump body is made of pig iron, and the filter screen ring is made of stainless steel.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the filter screen ring is clamped and fixed in the mounting groove and matched with the water inlet filtering square hole, so that a water source entering the pump body can be efficiently filtered, the filter screen ring and the bottom sealing plate can be detached to rapidly clean the filter screen ring when the filter screen ring needs to be cleaned, the cleaning process is extremely convenient and efficient, and trouble and worry are saved;
2. the reciprocating piston pump adopts the cam groove for transmission, converts the rotation of the rotating shaft into the telescopic motion of the telescopic sleeve, and further drives the sealing piston to do telescopic motion, so that the reciprocating piston pump works.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a cross-sectional view of the present invention;
FIG. 3 is a cross-sectional view of a water intake apparatus of the present invention;
FIG. 4 is a cross-sectional view of the pump body of the present invention at the location of the hollow piston sleeve;
FIG. 5 is a sectional view of the connecting portion of the rotating shaft and the telescopic sleeve in the present invention;
FIG. 6 is a developed view of the inner wall of the telescopic sleeve at the cam groove portion in the present invention;
fig. 7 is an enlarged view of a portion of the invention of fig. 5 in the area of the rotating support post.
In the figure: 1. a pump body; 2. a water inlet device; 201. a water inlet filtering square hole; 202. a filter screen ring; 203. a bottom seal plate; 204. a top water inlet hole; 205. mounting grooves; 206. sealing the leather pad; 3. a balancing weight; 4. a water outlet pipe; 5. a handle; 6. a power motor; 7. a rotating shaft; 8. a telescopic sleeve; 801. a cam slot; 9. a guide sealing baffle plate; 10. a hollow piston sleeve; 11. a cavity isolation plate; 12. a water outlet cavity; 13. a water inlet cavity; 14. a sealing piston; 15. a one-way valve; 16. rotating the support column; 17. and a bearing.
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.
Referring to fig. 1 to 7, in the embodiment of the present invention, a large-flow low-noise reciprocating piston pump includes a pump body 1, a water inlet device 2 is disposed at a bottom end of the pump body 1, the water inlet device 2 includes a top water inlet hole 204 disposed at a top end of the water inlet device 2, a water inlet filtering square hole 201 disposed at a periphery of the water inlet device 2, an installation groove 205 disposed at a periphery of a bottom end of the water inlet device 2, a sealing leather gasket 206 glued to the inside of the installation groove 205, a filter screen ring 202 installed inside the installation groove 205, a bottom sealing plate 203 fixed at a bottom end of the filter screen ring 202, the bottom sealing plate 203 and the water inlet device 2 are installed by screws, the filter screen ring 202 is clamped and sealed in the sealing leather gasket 206 inside the installation groove 205, and the water inlet device 2 and the pump body 1 are installed by screws in a sealing manner.
Through adopting above-mentioned technical scheme, fix inside mounting groove 205 through pressing filter screen circle 202 card, with the cooperation of filter square hole 201 that intakes, can carry out the efficient to the water source that gets into pump body 1 inside and filter, can when needs clearance filter screen circle 202, can pull down filter screen circle 202 and bottom closing plate 203 and carry out quick clearance, the clearance process is extremely convenient high-efficient, and it is laborsaving to save worry.
Wherein, pump body 1 one side is located 2 top one sides fixed mounting of water installations and has balancing weight 3, and there is motor power 6 on 1 top of the pump body through the screw mounting, and 2 one side integrated into one piece that lie in water installations on the pump body 1 have outlet pipe 4, and motor power 6 provides power for this work of the pump body 1, and outlet pipe 4 is connected with outside pipeline.
Wherein, the inside integrated into one piece of the pump body 1 has the cavity piston bush 10, integrated into one piece has cavity division board 11 between cavity piston bush 10 outer wall middle part and the 1 inner wall of the pump body, it is play water cavity 12 to lie in cavity division board 11 top between cavity piston bush 10 and the 1 inner wall of the pump body, it is intake cavity 13 to lie in cavity division board 11 below between cavity piston bush 10 and the 1 inner wall of the pump body, check valve 15 is all installed to cavity 13 and play water cavity 12 one side that lie in intake cavity 13 in cavity piston bush 10 outer wall both ends, the flow direction of check valve 15 is for flowing to play water cavity 12 one end from intake cavity 13, the inside sealed piston 14 that is provided with of cavity piston bush 10, sealed piston 14 and the sliding seal connection of cavity piston bush 10 inner wall, a tip fixed mounting of sealed piston has the telescope tube 8, the inside pivot 7 that is provided with of telescope tube 8.
By adopting the technical scheme, the sealing piston 14 can work when moving to any position, and the specific working process is as follows: as shown in fig. 2, when the sealing piston 14 moves to the left, the check valves 15 above and below the left side are opened, the check valves 15 below and above the right side are closed, so that the water source in the water inlet cavity 13 flows into the water outlet cavity 12, when the sealing piston 14 moves to the right, the check valves 15 above and below the left side are closed, the check valves 15 below the left side and above the right side are opened, so that the water source in the water inlet cavity 13 flows into the water outlet cavity 12, and the flow rate of the pump body 1 can be effectively increased.
Wherein, the output shaft of motor power 6 passes through pump body 1 top back and passes through the coupling joint with pivot 7, has seted up cam groove 801 on the 8 inner walls of telescope tube, the end to end of cam groove 801, and fixed mounting has the rotation support column 16 that is located the inside of cam groove 801 on the 7 outer walls of pivot, is provided with bearing 17 between rotation support column 16 outer wall and the cam groove 801, and rotation support column 16 passes through bearing 17 roll connection with cam groove 801.
Through adopting above-mentioned technical scheme, through adopting cam groove 801 to carry out the transmission, convert the rotation of pivot 7 into the concertina movement of telescope tube 8, and then drive the 14 concertina movements of sealed piston, realize the work of this reciprocating piston pump, and bearing 17's setting, the kinetic friction power of the telescopic tube 8 of reduction that can be great improves the kinetic energy conversion rate, reduces the friction noise, the volume of the reduction pump body 1 that can be great conveniently carries and transports.
Wherein, be provided with the sealed baffle of direction 9 of fixing on the inner wall of the pump body 1 on the 8 outer walls of telescope tube, the sealed baffle of direction 9 and 8 sliding seal of telescope tube are connected, and the sealed baffle of direction 9 can provide waterproof sealing to the motion of telescope tube 8, avoids leaking.
Wherein, outlet pipe 4 both sides are provided with handle 5, and handle 5 rotates with outlet pipe 4 to be connected, and the top surface of outlet pipe 4 is parallel with the bottom surface of water installations 2, can mention this pump body 1 through handle 5.
In this embodiment, the pump body 1 is made of pig iron, so as to prevent the body from deforming, and the filter screen ring 202 is made of stainless steel, so as to improve durability.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (10)
1. Reciprocating piston pump of large-traffic low noise, including pump body (1), its characterized in that: the water inlet device (2) is arranged at the bottom end of the pump body (1), the water inlet device (2) comprises a top water inlet hole (204) arranged at the top end of the water inlet device (2), a water inlet filtering square hole (201) arranged at the periphery of the water inlet device (2), an installation groove (205) arranged at the periphery of the bottom end of the water inlet device (2), a sealing leather gasket (206) glued with the inside of the installation groove (205), a filter screen ring (202) arranged inside the installation groove (205), and a bottom sealing plate (203) fixed at the bottom end of the filter screen ring (202), the bottom sealing plate (203) and the water inlet device (2) are installed through screws, the filter screen ring (202) is clamped and sealed in the sealing leather gasket (206) inside the mounting groove (205), the water inlet device (2) and the pump body (1) are hermetically installed through screws.
2. The high flow, low noise reciprocating piston pump of claim 1, wherein: the pump body (1) one side is located intake device (2) top one side fixed mounting has balancing weight (3), there is motor power (6) pump body (1) top through the screw mounting, lie in on the pump body (1) intake device (2) one side integrated into one piece has outlet pipe (4).
3. The high flow, low noise reciprocating piston pump of claim 1, wherein: the utility model discloses a pump body, including pump body (1), the inside integrated into one piece of pump body (1) has cavity piston sleeve (10), cavity piston sleeve (10) outer wall middle part with integrated into one piece has cavity division board (11) between the pump body (1) inner wall, cavity piston sleeve (10) with be located between the pump body (1) inner wall cavity division board (11) top is for going out water cavity (12), cavity piston sleeve (10) with be located between the pump body (1) inner wall cavity division board (11) below is for intaking cavity (13).
4. A high flow, low noise reciprocating piston pump according to claim 3, characterized by: the hollow piston sleeve (10) is characterized in that the two ends of the outer wall of the hollow piston sleeve (10) are located on the water inlet cavity (13) and one side of the water outlet cavity (12) are respectively provided with a check valve (15), and the flow direction of the check valve (15) is from the water inlet cavity (13) to the water outlet cavity (12) one end.
5. The high flow, low noise reciprocating piston pump of claim 4, wherein: the hollow piston sleeve is characterized in that a sealing piston (14) is arranged inside the hollow piston sleeve (10), the sealing piston (14) is connected with the inner wall of the hollow piston sleeve (10) in a sliding and sealing mode, a telescopic sleeve (8) is fixedly installed at one end of the sealing piston (14), and a rotating shaft (7) is arranged inside the telescopic sleeve (8).
6. The high flow, low noise reciprocating piston pump of claim 5, wherein: the output shaft of motor power (6) passes behind the pump body (1) top with pivot (7) pass through the coupling joint, cam groove (801) have been seted up on telescopic sleeve (8) inner wall, the end to end of cam groove (801).
7. The high flow, low noise reciprocating piston pump of claim 6, wherein: fixed mounting has on pivot (7) outer wall to be located inside rotation support column (16) of cam groove (801), rotation support column (16) outer wall with be provided with bearing (17) between cam groove (801), rotation support column (16) with cam groove (801) pass through bearing (17) roll connection.
8. The high flow, low noise reciprocating piston pump of claim 7, wherein: the outer wall of the telescopic sleeve (8) is provided with a guide sealing baffle (9) fixed on the inner wall of the pump body (1), and the guide sealing baffle (9) is connected with the telescopic sleeve (8) in a sliding and sealing manner.
9. The high flow, low noise reciprocating piston pump of claim 2, wherein: handles (5) are arranged on two sides of the water outlet pipe (4), the handles (5) are rotatably connected with the water outlet pipe (4), and the top surface of the water outlet pipe (4) is parallel to the bottom surface of the water inlet device (2).
10. The high flow, low noise reciprocating piston pump of claim 1, wherein: the pump body (1) is made of pig iron, and the filter screen ring (202) is made of stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210195892.XA CN114508484A (en) | 2022-03-01 | 2022-03-01 | High-flow low-noise reciprocating piston pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210195892.XA CN114508484A (en) | 2022-03-01 | 2022-03-01 | High-flow low-noise reciprocating piston pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114508484A true CN114508484A (en) | 2022-05-17 |
Family
ID=81554311
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210195892.XA Pending CN114508484A (en) | 2022-03-01 | 2022-03-01 | High-flow low-noise reciprocating piston pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114508484A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4560476A (en) * | 1983-04-30 | 1985-12-24 | Ebara Corporation | Strainer for submergible pump |
| CN209370089U (en) * | 2018-12-04 | 2019-09-10 | 中山市氧立新电器有限公司 | A kind of small-sized electric oil pumping suction pump |
| CN210715074U (en) * | 2019-10-15 | 2020-06-09 | 浙江金木泵业有限公司 | Automatic rotatory filter screen that intakes |
| CN211777863U (en) * | 2020-03-18 | 2020-10-27 | 邯郸市三久制泵科技有限公司 | Flow-adjustable vertical long-shaft pump |
| CN213176087U (en) * | 2020-09-07 | 2021-05-11 | 徐州精一泵业有限公司 | Double-water-cooling air-tight submersible electric pump |
| CN214118592U (en) * | 2020-12-14 | 2021-09-03 | 河北冀阜机械设备有限公司 | Novel immersible pump mechanism of intaking |
| CN214130515U (en) * | 2020-12-30 | 2021-09-07 | 南京博泽环境科技有限公司 | Sewage treatment device utilizing biological deodorization |
| CN214836937U (en) * | 2021-03-19 | 2021-11-23 | 长沙博格泵业机械有限公司 | High-efficiency reciprocating high-pressure water pump |
| CN217029284U (en) * | 2022-03-01 | 2022-07-22 | 绍兴威格隆泵业有限公司 | High-flow low-noise reciprocating piston pump |
-
2022
- 2022-03-01 CN CN202210195892.XA patent/CN114508484A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4560476A (en) * | 1983-04-30 | 1985-12-24 | Ebara Corporation | Strainer for submergible pump |
| CN209370089U (en) * | 2018-12-04 | 2019-09-10 | 中山市氧立新电器有限公司 | A kind of small-sized electric oil pumping suction pump |
| CN210715074U (en) * | 2019-10-15 | 2020-06-09 | 浙江金木泵业有限公司 | Automatic rotatory filter screen that intakes |
| CN211777863U (en) * | 2020-03-18 | 2020-10-27 | 邯郸市三久制泵科技有限公司 | Flow-adjustable vertical long-shaft pump |
| CN213176087U (en) * | 2020-09-07 | 2021-05-11 | 徐州精一泵业有限公司 | Double-water-cooling air-tight submersible electric pump |
| CN214118592U (en) * | 2020-12-14 | 2021-09-03 | 河北冀阜机械设备有限公司 | Novel immersible pump mechanism of intaking |
| CN214130515U (en) * | 2020-12-30 | 2021-09-07 | 南京博泽环境科技有限公司 | Sewage treatment device utilizing biological deodorization |
| CN214836937U (en) * | 2021-03-19 | 2021-11-23 | 长沙博格泵业机械有限公司 | High-efficiency reciprocating high-pressure water pump |
| CN217029284U (en) * | 2022-03-01 | 2022-07-22 | 绍兴威格隆泵业有限公司 | High-flow low-noise reciprocating piston pump |
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