CN113074146A - Improved water pump - Google Patents
Improved water pump Download PDFInfo
- Publication number
- CN113074146A CN113074146A CN202110367833.1A CN202110367833A CN113074146A CN 113074146 A CN113074146 A CN 113074146A CN 202110367833 A CN202110367833 A CN 202110367833A CN 113074146 A CN113074146 A CN 113074146A
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- Prior art keywords
- pump body
- pump
- rod
- steel wire
- positioning
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
- F04D29/708—Suction grids; Strainers; Dust separation; Cleaning specially for liquid pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/007—Details, component parts, or accessories especially adapted for liquid pumps
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Details Of Reciprocating Pumps (AREA)
Abstract
The invention relates to the field of water pump machinery, in particular to an improved water pump which comprises a pump body, a protective device and an intercepting device, wherein a water outlet is formed in the upper end face of the pump body, the water outlet is communicated with the inside of the pump body, the protective device is arranged on the outer circular surface of the pump body, and the intercepting device is arranged outside the protective device.
Description
Technical Field
The invention relates to the field of water pump machinery, in particular to an improved water pump.
Background
The water pump is a machine for conveying liquid or pressurizing liquid, which transfers the mechanical energy of prime mover or other external energy to the liquid to increase the energy of the liquid, mainly used for conveying liquid including water, oil, acid-base liquid, emulsion, suspoemulsion and liquid metal, and also can convey liquid, gas mixture and liquid containing suspended solid, and can be divided into volumetric water pump and vane pump according to different working principles; when the water pump works, under the action of centrifugal force generated by high-speed rotation of the impeller, water in the impeller flow channel is thrown to the periphery, the volute is pressed in, the impeller inlet forms vacuum, water in the water pool is sucked and supplemented into the space along the water suction pipe under the external atmospheric pressure, and then the sucked water is thrown out by the impeller and enters the water outlet through the volute, but the following problems can occur in the working process of the water pump:
1, a steel wire mesh on the outer side of a water inlet of the water pump is easily blocked by aquatic weeds and garbage, so that the water pump cannot continue to work, and the aquatic weeds and the garbage on the outer wall of the steel wire mesh need to be manually cleaned;
2, the outer wall of water pump damages easily, and the pump body causes the outer wall of stone and rubbish to the water pump to continue to strike to the suction of rivers, influences the long-term use of water pump.
Disclosure of Invention
In order to solve the problems, the invention provides an improved water pump which comprises a pump body, a protective device and an interception device, wherein a water outlet is formed in the upper end face of the pump body and communicated with the inside of the pump body;
the protection device comprises a steel wire mesh, fixing plates, telescopic groups, upper protection rings, lower protection rings, positioning hooks and a support unit, wherein the steel wire mesh is arranged on the middle part of the outer circular surface of the pump body, the upper end and the lower end of the steel wire mesh are fixedly connected with the outer wall of the pump body, two groups of fixing plates are symmetrically arranged on two sides of the middle part of the outer circular surface of the pump body, three fixing plates are arranged on each group of fixing plates, the three fixing plates and two water inlets are distributed at intervals, the upper end and the lower end of each fixing plate are fixedly connected with the outer wall of the pump body, one side of each fixing plate, which is close to the pump body, is attached to the outer circular wall of the pump body, the steel wire mesh is arranged on the outer side of each fixing plate, a plurality of telescopic groups are uniformly arranged on one side, which is far away from the pump body, the lower end of the upper protection ring is fixedly connected with the outer wall of the pump body, the lower end of the outer circular surface of the upper protection ring is attached to the upper end of the inner circular surface of the steel wire mesh, the lower protection ring is arranged below the fixed plate and located at the lower end of the outer circular surface of the pump body, the upper end and the lower end of the lower protection ring are fixedly connected with the outer wall of the pump body, the upper end of the outer circular surface of the lower protection ring is attached to the lower end of the inner circular surface of the steel wire mesh, the supporting unit is arranged below the lower protection ring and arranged at the bottom of the pump;
the telescopic group comprises a telescopic rod, a fixed ball and a telescopic spring, one end of the telescopic rod is fixedly connected with the fixed plate, the other end of the telescopic rod is fixedly connected with the fixed ball, the fixed ball is attached to a through hole in the inner ring surface of the steel wire mesh, the telescopic spring is sleeved on the telescopic rod, and two ends of the telescopic spring are connected with the fixed ball and the fixed plate;
the intercepting device comprises a rotating plate, intercepting rods, positioning plates, positioning rings and electric sliding blocks, wherein the rotating plate is arranged on the upper end surface of a water outlet of a pump body, the intercepting rods are uniformly arranged on the lower end surface of the rotating plate along the circumferential direction of the pump body, the distance from the intercepting rods to the pump body is gradually reduced along the clockwise direction, a convex block is arranged in the middle of one end, close to the pump body, of each intercepting rod, the convex block closest to the pump body is attached to the outer annular surface of a steel wire mesh, a plurality of positioning plates are rotatably arranged on the lower end surface of the rotating plate through bearings and are positioned on the inner sides of the intercepting rods, the positioning plates are uniformly distributed along the circumferential direction of the pump body, positioning holes are formed in the side walls of the positioning plates, positioning hooks are arranged in the positioning holes in a penetrating mode, the positioning rings are fixedly arranged at the lower ends of the outer annular surfaces of the pump, the two sides of the pump body are symmetrically provided with electric sliding blocks which slide up and down.
Preferably, the electric sliding block is fixedly connected with a cleaning block, and the cleaning block is attached to the inner wall of the steel wire net.
Preferably, the supporting unit include the bracing piece, support the telescopic link, the locating lever, supporting spring and location awl, the upper end of bracing piece is installed on pump body bottom through round pin axle rotation, the bracing piece is along pump body circumference evenly distributed, the bracing piece is hollow tubular structure, it docks inside the bracing piece to support the telescopic link slip, supports the telescopic link bottom and installs the locating lever, the outside cover of supporting the telescopic link is equipped with supporting spring, supporting spring's both ends are connected with bracing piece bottom and locating lever top respectively, the location awl is installed through the normal running fit mode to the locating lever bottom.
Preferably, the outer wall of the positioning rod is fixedly provided with a reference plate by the top end, a blocking frame is arranged above the reference plate and is of an inverted U-shaped structure, one side of the blocking frame, which is close to the supporting telescopic rod, is rotatably connected with a blocking bolt through a bearing, the middle of the blocking bolt is installed on the blocking vertical plate in a thread fit mode, and the blocking vertical plate is installed on the supporting rod.
Preferably, the lower end face center of the rotating plate is fixedly connected with a fixing rod, the lower end of the fixing rod is fixedly connected with a pump shaft in the pump body, the upper end face of the rotating plate is located on the periphery of the fixing rod and provided with a plurality of water outlet through grooves distributed in an annular shape, the water outlet through grooves are communicated with a water outlet, and a sealing ring is arranged on the outer side of the water outlet.
The invention has the beneficial effects that:
1. the improved water pump provided by the invention can prevent waterweeds on the through holes of the steel wire mesh from being blocked by the waterweeds on the through holes of the steel wire mesh through the matching of the telescopic group and the steel wire mesh, and meanwhile, the outer wall of the pump body is protected by the matching of the steel wire mesh, the upper protective ring and the lower protective ring, and the cleaning block can scrape the inner wall of the steel wire mesh by electrically sliding to move up and down;
2. the fixed rod is driven to rotate through the pump shaft, the rotating plate is driven to rotate, the rotating plate drives the intercepting rod to move along the annular groove, the intercepting rod rotates to prevent aquatic weeds and garbage from being close to the steel wire mesh, and meanwhile, when the intercepting rod closest to the pump body rotates, the convex blocks on the intercepting rod can scrape impurities on the outer annular surface of the steel wire mesh.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a cross-sectional view of the present invention;
FIG. 3 is a front view of the present invention;
FIG. 4 is a top view of the shield and the interceptor of the present invention;
FIG. 5 is an enlarged view of the invention taken from the line A of FIG. 2;
fig. 6 is a partial enlarged view of the invention in the direction B of fig. 2.
Detailed Description
In the following description of the embodiments of the present invention, reference is made to the accompanying drawings, and in the process of description, the width of a line or the size of a constituent element may be exaggerated for clarity and convenience.
In addition, the following terms are defined based on the functions of the present invention and may be different depending on the intention of the user or the operator or the common practice, and therefore, these terms are defined based on the entire contents of the present specification.
As shown in fig. 1 to 6, an improved water pump comprises a pump body 1, a protection device 2 and an interception device 3, wherein a water outlet is formed in the upper end face of the pump body 1, the water outlet is communicated with the inside of the pump body 1, two sets of water inlets are symmetrically formed in the middle of the outer circular face of the pump body 1, two water inlets are formed in each set, the water inlets located on the same side are distributed in the front and back direction, the water inlets are communicated with the inside of the pump body 1, the protection device 2 is arranged on the outer circular face of the pump body 1, and the interception device 3 is arranged outside the protection device.
The protection device 2 comprises a steel wire mesh 21, three fixing plates 22, a telescopic group 23, an upper protection ring 24, a lower protection ring 25, a positioning hook 26 and a supporting unit 27, wherein the steel wire mesh 21 is arranged on the middle part of the outer circular surface of the pump body 1, the upper end and the lower end of the steel wire mesh 21 are fixedly connected with the outer wall of the pump body 1 in a bolt-nut matching mode, two groups of fixing plates 22 are symmetrically arranged on two sides of the middle part of the outer circular surface of the pump body 1, three fixing plates 22 are arranged on each group of fixing plates 22, the three fixing plates 22 and two water inlets are distributed at intervals on the same side, the upper end and the lower end of each fixing plate 22 are fixedly connected with the outer wall of the pump body 1 in a bolt-nut matching mode, one side of each fixing plate 22 close to the pump body 1 is attached to the outer circular wall of the pump, an upper protection ring 24 is arranged above the fixing plate 22, the upper protection ring 24 is located at the upper end of the outer circular surface of the pump body 1, positioning hooks 26 are uniformly distributed on the upper end surface of the upper protection ring 24 along the circumferential direction of the pump body 1, the lower end of the upper protection ring 24 is fixedly connected with the outer wall of the pump body 1 in a bolt-nut matching mode, the lower end of the outer circular surface of the upper protection ring 24 is attached to the upper end of the inner circular surface of the steel wire mesh 21, a lower protection ring 25 is arranged below the fixing plate 22, the lower protection ring 25 is located at the lower end of the outer circular surface of the pump body 1, the upper end and the lower end of the lower protection ring 25 are fixedly connected with the outer wall of the pump body 1 in a bolt-nut matching mode, the upper end of the outer circular surface of the lower protection ring 25 is attached to the lower end of the inner circular surface of.
During specific work, the cooperation between the telescopic group 23 and the steel wire mesh 21 prevents the waterweeds on the through hole of the steel wire mesh 21 from blocking the through hole due to the impact caused by the waterweeds on the through hole of the steel wire mesh 21, and the cooperation of the steel wire mesh 21, the upper protective ring 24 and the lower protective ring 25 protects the outer wall of the pump body 1.
The flexible group 23 include telescopic link 231, fixed ball 232 and expanding spring 233, telescopic link 231 one end and fixed plate 22 fixed connection, the telescopic link 231 other end and fixed ball 232 fixed connection, fixed ball 232 pastes mutually with the through-hole of wire net 21 inner loop face, expanding spring 233 overlaps and establishes on telescopic link 231, and expanding spring 233's both ends are connected with fixed ball 232 and fixed plate 22.
During specific operation, the water pump during operation utilizes the water inlet of the pump body 1 to drive the fixed ball 232 to be close to the pump body 1 to the suction of rivers, and the fixed ball 232 drives telescopic link 231 synchronous motion, later drives fixed ball 232 through the resilience force of expanding spring 233 and resets to keeping away from pump body 1 one side to the pasture and water on the through-hole to wire net 21 causes the striking, prevents that the pasture and water on the through-hole of wire net 21 from causing the jam to the through-hole.
The supporting unit 27 comprises a supporting rod 271, a supporting telescopic rod 272, a positioning rod 273, a supporting spring 274 and a positioning cone 275, the upper end of the supporting rod 271 is rotatably installed at the bottom of the pump body 1 through a pin shaft, the supporting rod 271 is uniformly distributed along the circumferential direction of the pump body 1, the supporting rod 271 is of a hollow tubular structure, the supporting telescopic rod 272 is in sliding butt joint with the inside of the supporting rod 271, the positioning rod 273 is installed at the bottom end of the supporting telescopic rod 272, the supporting spring 274 is sleeved on the outer side of the supporting telescopic rod 272, two ends of the supporting spring 274 are respectively connected with the bottom end of the supporting rod 271 and the top end of; the outer wall of the positioning rod 273 is fixedly provided with a reference plate 41 close to the top end, a blocking frame 42 is arranged above the reference plate 41, the blocking frame 42 is of an inverted U-shaped structure, one side of the blocking frame 42, which is close to the supporting telescopic rod 272, is rotatably connected with a blocking bolt 43 through a bearing, the middle part of the blocking bolt 43 is arranged on the blocking vertical plate 44 in a threaded fit manner, and the blocking vertical plate 44 is arranged on the supporting rod 271.
During specific work, the pump body 1 is supported in a multi-point mode through the matching of the supporting rod 271, the supporting telescopic rod 272, the positioning rod 273, the supporting spring 274 and the positioning cone 275, and the pump body can adapt to complex underwater terrains; the reference plate 41, the blocking frame 42, the blocking bolt 43 and the blocking vertical plate 44 are matched to limit the telescopic length of the telescopic rod 231, so that a better positioning effect is achieved.
The intercepting device 3 comprises a rotating plate 31, intercepting rods 32, positioning plates 33, positioning rings 34 and electric sliding blocks 35, the rotating plate 31 is installed on the upper end face of a water outlet of the pump body 1, the intercepting rods 32 are evenly arranged on the lower end face of the rotating plate 31 along the circumferential direction of the pump body 1, the distance from the intercepting rods 32 to the pump body 1 is gradually reduced along the clockwise direction, a raised block is arranged in the middle of one end, close to the pump body 1, of each intercepting rod 32, the raised block closest to the pump body 1 is attached to the outer ring face of the steel wire mesh 21, a plurality of positioning plates 33 are rotatably installed on the lower end face of the rotating plate 31 through bearings, the positioning plates 33 are located on the inner sides of the intercepting rods 32, the positioning plates 33 are evenly distributed along the circumferential direction of the pump body 1, positioning holes are formed in the side walls of the positioning plates 33, positioning hooks 26 penetrate through the positioning holes, the positioning rings 34, the radius of ring channel is increased in proper order to the edge by the center, intercepts pole 32 slip butt joint in the ring channel, and the lower extreme of every interception pole 32 is laminated mutually with corresponding ring channel inboard wall, and the bilateral symmetry of the pump body 1 sets up electronic slider 35, fixedly connected with clearance piece 351 on the electronic slider 35, and clearance piece 351 and the laminating of wire net 21 inner wall mutually, electronic slider 35 can drive clearance piece 351 and reciprocate to strike off the pasture and water on the whole wire net 21.
The lower terminal surface center fixedly connected with dead lever 311 of rotor plate 31, the lower extreme of dead lever 311 and the pump shaft fixed connection in the pump body 1, the up end of rotor plate 31 is located dead lever 311 periphery and has seted up a plurality of logical grooves of going out that are the annular and distribute, goes out that the logical groove is linked together with the delivery port, the delivery port outside is provided with sealing washer 312, the interior anchor ring of sealing washer 312 pastes with the outer wall of delivery port mutually, sealing washer 312 links to each other through the lower extreme stationary phase of bolt-nut fit mode with rotor plate 31.
During specific work, the fixed rod 311 is driven to rotate through the pump shaft, the rotating plate 31 is driven to rotate, the rotating plate 31 further drives the intercepting rod 32 to move along the annular groove, the intercepting rod 32 rotates to prevent aquatic weeds and garbage from being close to the steel wire mesh 21, meanwhile, when the intercepting rod 32 closest to the pump body 1 rotates, the protruding blocks on the intercepting rod 32 can scrape impurities on the outer annular surface of the steel wire mesh 21, the positioning plate 33 keeps still in the rotating process of the rotating plate 31, and the sealing ring 312 is used for sealing a gap between the rotating plate 31 and a water outlet.
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 (5)
1. The utility model provides an improved generation water pump, includes pump body (1), protector (2) and intercepting device (3), its characterized in that: the water pump is characterized in that a water outlet is formed in the upper end face of the pump body (1), the water outlet is communicated with the interior of the pump body (1), two groups of water inlets are symmetrically formed in two sides of the middle of the outer circular face of the pump body (1), two water inlets are formed in each group, the water inlets located on the same side are distributed in the front and back direction, the water inlets are communicated with the interior of the pump body (1), a protection device (2) is arranged on the outer circular face of the pump body (1), and an interception device (3) is arranged outside the protection;
the protection device (2) comprises a steel wire mesh (21), fixing plates (22), telescopic groups (23), an upper protection ring (24), a lower protection ring (25), a positioning hook (26) and a supporting unit (27), wherein the steel wire mesh (21) is arranged on the middle part of the outer circular surface of the pump body 1, the upper end and the lower end of the steel wire mesh (21) are fixedly connected with the outer wall of the pump body (1), two groups of fixing plates (22) are symmetrically arranged on two sides of the middle part of the outer circular surface of the pump body (1), three fixing plates (22) are arranged on each group, the three fixing plates (22) on the same side are distributed at intervals with two water inlets, the upper end and the lower end of each fixing plate (22) are fixedly connected with the outer wall of the pump body (1), one side, close to the pump body 1, of each fixing plate 22 is attached to the outer circular wall of the pump body 1, the steel wire mesh 21 is arranged, an upper protection ring 24 is arranged above the fixed plate 22, the upper protection ring 24 is positioned at the upper end of the outer circular surface of the pump body 1, positioning hooks 26 are uniformly distributed on the upper end surface of the upper protection ring 24 along the circumferential direction of the pump body 1, the lower end of the upper protection ring 24 is fixedly connected with the outer wall of the pump body 1, the lower end of the outer circular surface of the upper protection ring 24 is attached to the upper end of the inner circular surface of the steel wire mesh 21, a lower protection ring 25 is arranged below the fixed plate 22, the lower protection ring 25 is positioned at the lower end of the outer circular surface of the pump body 1, the upper end and the lower end of the lower protection ring 25 are fixedly connected with the outer wall of the pump body 1, the upper end of the outer circular surface of the lower protection ring 25 is attached to the lower end of the inner circular surface of the steel wire mesh;
the telescopic group (23) comprises a telescopic rod (231), a fixed ball (232) and a telescopic spring (233), one end of the telescopic rod (231) is fixedly connected with the fixed plate (22), the other end of the telescopic rod (231) is fixedly connected with the fixed ball (232), the fixed ball (232) is attached to a through hole in the inner annular surface of the steel wire mesh (21), the telescopic spring (233) is sleeved on the telescopic rod (231), and two ends of the telescopic spring (233) are connected with the fixed ball (232) and the fixed plate (22);
the intercepting device (3) comprises a rotating plate (31), an intercepting rod (32), positioning plates (33), positioning rings (34) and electric sliding blocks (35), the rotating plate (31) is installed on the upper end face of a water outlet of the pump body (1), the intercepting rod (32) is evenly arranged on the lower end face of the rotating plate (31) along the circumferential direction of the pump body (1), the distance from the intercepting rod (32) to the pump body (1) is gradually reduced along the clockwise direction, a protruding block is arranged in the middle of one end, close to the pump body (1), of the intercepting rod (32), the protruding block closest to the pump body (1) is attached to the outer ring face of the steel wire mesh (21), a plurality of positioning plates (33) are rotatably installed on the lower end face of the rotating plate (31) through bearings, the positioning plates (33) are located on the inner side of the intercepting rod (32), the positioning plates (33) are evenly distributed along the circumferential direction of the pump body (1), and positioning holes, the positioning hooks (26) penetrate through the positioning holes, the positioning rings (34) are fixedly mounted at the lower end of the outer circular surface of the pump body (1), a plurality of annular grooves are formed in the upper end face of each positioning ring (34), the interception rods (32) are in butt joint in the annular grooves in a sliding mode, the lower end of each interception rod (32) is attached to the inner side wall of the corresponding annular groove, and electric sliding blocks (35) which slide up and down are symmetrically arranged on two sides of the pump body (1).
2. An improved water pump as defined in claim 1, wherein: electric slider (35) on fixedly connected with clearance piece (351), clearance piece (351) and steel wire net (21) inner wall laminate mutually.
3. An improved water pump as defined in claim 1, wherein: support unit (27) including bracing piece (271), support telescopic link (272), locating lever (273), supporting spring (274) and location awl (275), the upper end of bracing piece (271) is installed on the pump body (1) bottom through the round pin axle rotation, the bracing piece (271) is along the pump body (1) circumference evenly distributed, bracing piece (271) is hollow tubular structure, support telescopic link (272) slip butt joint inside bracing piece (271), locating lever (273) is installed to support telescopic link (272) bottom, the outside cover that supports telescopic link (272) is equipped with supporting spring (274), the both ends of supporting spring (274) are connected with bracing piece (271) bottom and locating lever (273) top respectively, location awl (275) are installed through the normal running fit mode to locating lever (273) bottom.
4. An improved water pump as defined in claim 3, wherein: the locating lever (273) outer wall lean on top fixed mounting to have benchmark board (41), the top of benchmark board (41) is provided with blocks frame (42), blocks frame (42) and is handstand U type structure, block one side that frame (42) are close to support telescopic link (272) and be connected with through the bearing rotation and block bolt (43), the middle part that blocks bolt (43) is installed on blockking riser (44) through screw-thread fit's mode, block riser (44) and install on bracing piece (271).
5. An improved water pump as defined in claim 1, wherein: the pump comprises a rotating plate (31), wherein a fixing rod (311) is fixedly connected to the center of the lower end face of the rotating plate (31), the lower end of the fixing rod (311) is fixedly connected with a pump shaft in a pump body (1), the upper end face of the rotating plate (31) is located on the periphery of the fixing rod (311) and provided with a plurality of water outlet through grooves distributed in an annular mode, the water outlet through grooves are communicated with a water outlet, and a sealing ring (312) is arranged on the outer side of the water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110367833.1A CN113074146B (en) | 2021-04-06 | 2021-04-06 | Improved water pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110367833.1A CN113074146B (en) | 2021-04-06 | 2021-04-06 | Improved water pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113074146A true CN113074146A (en) | 2021-07-06 |
| CN113074146B CN113074146B (en) | 2022-06-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110367833.1A Active CN113074146B (en) | 2021-04-06 | 2021-04-06 | Improved water pump |
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| Country | Link |
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| CN (1) | CN113074146B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR19990078542A (en) * | 1999-03-13 | 1999-11-05 | 김영남 | Sand filtration &protection system for underwater pump |
| WO2014207084A1 (en) * | 2013-06-27 | 2014-12-31 | Welltec A/S | Downhole cleaning tool and cleaning method |
| CN204140463U (en) * | 2014-09-29 | 2015-02-04 | 浙江曹娥通风设备有限公司 | Anticorrosion air bells exhauster |
| CN109469625A (en) * | 2018-11-23 | 2019-03-15 | 扬州华测光电技术有限公司 | A kind of water pump water conservancy diversion filter mantle |
| CN111287986A (en) * | 2018-09-19 | 2020-06-16 | 时飞龙 | Submersible sewage pump with water outlet filtering mechanism |
| CN111530137A (en) * | 2020-05-09 | 2020-08-14 | 马廷雄 | Water pollution treatment box |
-
2021
- 2021-04-06 CN CN202110367833.1A patent/CN113074146B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR19990078542A (en) * | 1999-03-13 | 1999-11-05 | 김영남 | Sand filtration &protection system for underwater pump |
| WO2014207084A1 (en) * | 2013-06-27 | 2014-12-31 | Welltec A/S | Downhole cleaning tool and cleaning method |
| CN204140463U (en) * | 2014-09-29 | 2015-02-04 | 浙江曹娥通风设备有限公司 | Anticorrosion air bells exhauster |
| CN111287986A (en) * | 2018-09-19 | 2020-06-16 | 时飞龙 | Submersible sewage pump with water outlet filtering mechanism |
| CN109469625A (en) * | 2018-11-23 | 2019-03-15 | 扬州华测光电技术有限公司 | A kind of water pump water conservancy diversion filter mantle |
| CN111530137A (en) * | 2020-05-09 | 2020-08-14 | 马廷雄 | Water pollution treatment box |
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| CN113074146B (en) | 2022-06-10 |
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