CN203939720U - Deep-well pump - Google Patents

Deep-well pump Download PDF

Info

Publication number
CN203939720U
CN203939720U CN201420336589.8U CN201420336589U CN203939720U CN 203939720 U CN203939720 U CN 203939720U CN 201420336589 U CN201420336589 U CN 201420336589U CN 203939720 U CN203939720 U CN 203939720U
Authority
CN
China
Prior art keywords
water outlet
joint
mounting groove
annular mounting
ring
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.)
Expired - Fee Related
Application number
CN201420336589.8U
Other languages
Chinese (zh)
Inventor
曹永进
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
WENLING TIANCI ELECTRICAL Co Ltd
Original Assignee
WENLING TIANCI ELECTRICAL Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by WENLING TIANCI ELECTRICAL Co Ltd filed Critical WENLING TIANCI ELECTRICAL Co Ltd
Priority to CN201420336589.8U priority Critical patent/CN203939720U/en
Application granted granted Critical
Publication of CN203939720U publication Critical patent/CN203939720U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The utility model discloses a kind of deep-well pump, its technological scheme main points are to comprise in water outlet joint being provided with seal ring, safety check comprises spool body and bend section, arcuate segment, arcuate segment outer surface forms sealed department, limit stoper comprises connecting ring and supporting frame, supporting frame comprises supporting portion, limited part, extension part and joint, retaining ring outer peripheral surface is radially convexly equipped with ring-type mounting blocks, water outlet joint inwall is provided with annular mounting groove, in annular mounting groove, be provided with elastic projection, annular mounting groove is divided into the first annular mounting groove and the second annular mounting groove by elastic projection, the first annular mounting groove is near safety check one side setting, the opposite side that arcuate segment is connected with bend section relatively can be conflicted and be connected with limited part, limited part and arcuate segment butt place establish depressed part, on limited part, be coated with rubber layer completely.The utlity model has good sealing and there is low noise.

Description

Deep-well pump
Technical field
The utility model relates to a kind of pump, and more particularly, it relates to a kind of deep-well pump.
Background technique
The maximum feature of deep-well pump is that motor and pump are made to one, and it is to immerse a kind of pump that aspirates and carry water in underground water well, is widely used in farmland discharging-irrigating, industrial and mining enterprise, urban water supply and sewerage and sewage treatment etc.Because motor pulls the plug simultaneously, therefore more special than general motor for the structural requirement of motor.The structural type of its motor is divided into 4 kinds of dry types, half dry type, oil-filled type, wet type.Before turn on pump, in suction pipe and pump, must be full of liquid.After turn on pump, impeller High Rotation Speed, liquid wherein, along with blade rotates together, under the effect of centrifugal force, flies away from impeller and outwards penetrates, and the liquid of ejaculation speed in pump case explosion chamber is slack-off gradually, and pressure increases gradually, and then from pump discharge, discharge tube flows out.Now, around being thrown toward due to liquid, blade center forms the vacuum low-pressure district that not only there is no air but also there is no liquid, liquid in liquid pool is under the atmospheric effect of pond face, in suction pipe inflow pump, liquid is exactly so continuously from liquid pool, be pumped up and continuously flow out from discharge tube.
Deep-well pump of the prior art generally comprises into water and saves, the pump housing, water outlet joint, motor, impeller, pump connecting base, water outlet joint is arranged on the upper end of the pump housing, water inlet joint is arranged on the lower end of the pump housing, in the water inlet that arranges intaking on joint, and in water inlet, be provided with filter screen, the pump housing is made up of some joint volutes, motor is provided with output shaft, motor is connected with splined shaft by coupling, each impeller is all solidly set on splined shaft, motor is connected by pump connecting base with water inlet joint, the two ends of water outlet joint are provided with suspension ring, generally can in water outlet joint, safety check be set, in the time that deep-well pump is started working, water is evacuated to water outlet joint place by impeller High Rotation Speed, now under the effect of hydraulic pressure, safety check upwards will be backed down, water is flowed out from water outlet joint, if in the time that deep-well pump quits work, safety check can move down again blocks the entrance in water outlet joint, but because water outlet joint in this deep-well pump arranges unreasonable, deep-well pump arranges and limits safety check movement travel limit stoper in water outlet joint, therefore will there is work time, safety check reset effect is poor, thereby cause poor sealing performance, and the water outlet of this deep-well pump joint safety check noise in the time of switch is larger, and in transportation process, safety check can teetertotter always in water outlet joint, causes the defect that noise is large, working life is short.
Model utility content
The deficiency existing for prior art, the purpose of this utility model is to provide a kind of deep-well pump, and this deep-well pump has improved the structural design of water outlet joint, makes it have good sealing and has advantages of low noise.
For achieving the above object, the utility model provides following technological scheme: a kind of deep-well pump, comprise into water and saving, the pump housing, water outlet joint, motor, pump connecting base, splined shaft, described water outlet joint is arranged on the upper end of the pump housing, described water inlet joint is arranged on the lower end of the pump housing, in the water inlet that arranges intaking on joint, in described water inlet, be provided with filter screen, the described pump housing comprises some joint volutes and impeller, motor is provided with output shaft, motor is connected with splined shaft by coupling, each impeller is all solidly set on splined shaft, motor is connected by pump connecting base with water inlet joint, described water outlet joint comprises water outlet, in described water outlet joint, safety check is set, in described water outlet joint, be provided with the seal ring of embedded metal skeleton, described safety check comprise spool body and successively one connect and be arranged at the bend section on spool body, and with the arcuate segment of bend section opposite direction, described arcuate segment outer surface forms sealed department, between described sealed department and seal ring, be tightly connected, in described water outlet joint, be provided with limit stoper, described limit stoper comprises connecting ring and the supporting frame that one connects, described supporting frame comprises the supporting portion that one connects successively, limited part, extension part and joint, described limited part and connecting ring be arranged in parallel, described joint is connected with connecting ring and joint distributes along connecting ring radial direction, outside described supporting portion, be also arranged with retaining ring, described retaining ring outer peripheral surface is radially convexly equipped with ring-type mounting blocks, described water outlet joint inwall is provided with annular mounting groove, in described annular mounting groove, be provided with the elastic projection arranging in the form of a ring, described annular mounting groove is divided into two parallel the first annular mounting groove of establishing and the second annular mounting groove by elastic projection, the inner peripheral surface of described elastic projection is inclined to set, the first described annular mounting groove is near safety check one side setting, described the first annular mounting groove and the second annular mounting groove are all suitable with ring-type mounting blocks, the opposite side that described arcuate segment is connected with bend section relatively can be conflicted and be connected with limited part, described limited part and arcuate segment butt place establish depressed part, on described limited part, be coated with rubber layer completely.
By adopting technique scheme, in the time that deep-well pump is in transportation process, when retaining ring is fixed in the first annular mounting groove by ring-type mounting blocks, limited part and safety check remain butt state, make safety check be fitted in all the time seal ring surface, make safety check play up and down in the time being subject to external influence power, and then can effectively reduce the noise producing because of in transport deep-well pump process, treat deep-well pump need to be installed, ring-type mounting blocks can be moved up, due to inclined-plane being set on elastic projection, therefore ring-type mounting blocks can be in inclined-plane moves to the second annular mounting groove, make limit stoper in normal working, the seal ring of embedded metal skeleton is set in water outlet joint, and the spool body of safety check is set to bend section and arcuate segment, the outer surface of arcuate segment forms sealed department, sealed department and seal ring are tightly connected, in the time that motor is started working, under the effect of impeller, water is flowed from below to up, safety check is upwards washed open, current are flowed out from the water outlet of water outlet joint, there is arranging of limited part can effectively prevent that current are excessive, safety check is collided to water outlet joint and the collision of water outlet joint and damages, improve the working life of safety check, limited part and arcuate segment butt place arrange depressed part, can make safety check well be connected in depressed part in the time being subject to water impact, make the position of safety check be difficult for changing, and then make spool body under the effect of self gravitation and upper end hydraulic pressure, move down reset time position there will not be deviation, and then can improve the sealing effect of safety check, one deck rubber layer is set on limited part, because rubber has elasticity, therefore can be in the effect of its buffering and protection during by the collision of spool body jack-up and limited part compared with mass-flow pressure, improve the working life of safety check, and because rubber has soft performance, therefore also can effectively reduce the noise that spool body and limited part produce, the design of bend section and arcuate segment can play buffer function to current.
Preferably, described seal ring comprises with seal ring body and is integrally formed at the sealing lip on seal ring body, and described sealing lip and sealed department joint are provided with arc-shaped recess, between described arc-shaped recess and sealed department, form ball face sealing.
By adopting technique scheme, in the time that motor quits work, spool body forms and is tightly connected with the sealing lip of seal ring under the effect of own wt and upper end hydraulic pressure, between the depression of arc and sealed department, forming ball face sealing and can further improve sealing effect, there is backflow phenomenon in anti-sealing.
Preferably, the other end that described water outlet joint is provided with water outlet relatively sets firmly stator, save with water outlet the other end being connected sets firmly cover plate of guide blade to described stator relatively, between adjacent guide vane cover plate, form and the inner water intake communicating of water outlet joint, described cover plate of guide blade center is provided with through hole, in described through hole, be provided with rubber bush bearing, described splined shaft relatively and the coupling the other end be installed with axle sleeve, described axle sleeve is placed in rubber bush bearing, on the outer peripheral surface of described axle sleeve, be radially provided with mounting hole, in described mounting hole, be provided with ball, described mounting hole opening is provided with the portion that clasps for clasping ball, described ball and mounting hole bottom are supported and are provided with spring, in described mounting hole, be also filled with lubricating grease.
By adopting technique scheme, on the outer peripheral surface of axle sleeve, establish mounting hole, and ball is set in mounting hole, and in mounting hole, establish lubricating grease, in axle sleeve is placed in rubber bush bearing time, ball will make ball be subject to the extruding of rubber bush bearing when contacting with rubber bush bearing and being squeezed, thereby the opening of mounting hole is opened, and lubricating grease just can flow out and enter in rubber bush bearing, plays lubrication effect, and then can effectively reduce the wearing and tearing between axle sleeve and rubber bush bearing, reduce noise.
Preferably, the quantity of described mounting hole is 3, and is evenly distributed around axle sleeve center.
By adopting technique scheme, the just lubrication effect between high axle sleeve and rubber bush bearing further of such design, extends working life, the reduction noise of deep-well pump.
Preferably, the opposite side that described arcuate segment is connected with bend section relatively wraps up one deck rubber layer completely.
By adopting technique scheme; in the time that motor is normally worked; under the effect of impeller; water is flowed from below to up, safety check is upwards washed open, current are flowed out from the water outlet of water outlet joint; the design of rubber layer can play buffer function in the time of safety check and limited part collision; reduce noise, better protect safety check, extend its working life.
Brief description of the drawings
Fig. 1 is the utility model deep-well pump embodiment's explosive view;
Fig. 2 is the utility model deep-well pump embodiment's structural drawing;
Fig. 3 is the explosive view of water outlet joint in the utility model deep-well pump embodiment;
Fig. 4 is the utility model deep-well pump embodiment's sectional view one;
Fig. 5 is the utility model deep-well pump embodiment's sectional view two;
Fig. 6 is the explosive view of volute in the utility model deep-well pump embodiment;
Fig. 7 is the structural representation of limit stoper in the utility model deep-well pump embodiment;
Fig. 8 is A portion enlarged view in Fig. 4;
Fig. 9 is B portion enlarged view in Fig. 4.
Reference character: 1, water inlet joint; 11, water inlet; 12, filter screen; 2, the pump housing; 21, volute; 22, impeller; 23, splined shaft; 231, axle sleeve; 2311, mounting hole; 2312, ball; 3, water outlet joint; 31, water outlet; 32, seal ring; 321, seal ring body; 322, sealing lip; 323, arc-shaped recess; 33, stator; 34, cover plate of guide blade; 341, through hole; 35, annular mounting groove; 351, the first annular mounting groove; 352, the second annular mounting groove; 36, elastic projection; 4, motor; 5, pump connecting base; 6, safety check; 61, spool body; 62, bend section; 63, arcuate segment; 631, sealed department; 7, limit stoper; 71, connecting ring; 72, supporting frame; 721, supporting portion; 722, limited part; 7221, depressed part; 723, extension part; 724, joint; 73, retaining ring; 731, ring-type mounting blocks; 74; Rubber layer; 9, rubber bush bearing.
Embodiment
Referring to figs. 1 through Fig. 9, the utility model deep-well pump embodiment is described further.
A kind of deep-well pump, comprise into water joint 1, the pump housing 2, water outlet joint 3, motor 4, pump connecting base 5, splined shaft 23, described water outlet joint 3 is arranged on the upper end of the pump housing 2, described water inlet joint 1 is arranged on the lower end of the pump housing 2, on water inlet joint 1 water inlet 11 is set, in described water inlet 11, be provided with filter screen 12, the described pump housing 2 comprises some joint volutes 21 and impeller 22, motor 4 is provided with output shaft, motor 4 is connected with splined shaft 23 by coupling, each impeller 22 is all solidly set on splined shaft 23, motor 4 is connected by pump connecting base 5 with water inlet joint 1, described water outlet joint 3 comprises water outlet 31, described water outlet saves the 3 interior safety check 6 that arrange, in described water outlet joint 3, be provided with the seal ring 32 of embedded metal skeleton, described safety check 6 comprise spool body 61 and successively one connect and be arranged at bend section 62 on spool body 61, and with the arcuate segment 63 of bend section 62 opposite directions, described arcuate segment 63 outer surfaces form sealed department 631, between described sealed department 631 and seal ring 32, be tightly connected, in described water outlet joint 3, be provided with limit stoper 7, described limit stoper 7 comprises connecting ring 71 and the supporting frame 72 that one connects, described supporting frame 72 comprises the supporting portion 722 that one connects successively, limited part 722, extension part 723 and joint 724, described limited part 722 be arranged in parallel with connecting ring 71, described joint 724 is connected with connecting ring 71 and joint 724 distributes along connecting ring 71 radial direction, the outer retaining ring 73 that is also arranged with in described supporting portion 722, described retaining ring 73 outer peripheral surfaces are radially convexly equipped with ring-type mounting blocks 731, described water outlet saves 3 inwalls and is provided with annular mounting groove 35, in described annular mounting groove 35, be provided with the elastic projection 36 arranging in the form of a ring, described annular mounting groove 35 is divided into two parallel the first annular mounting groove 351 of establishing and the second annular mounting groove 352 by elastic projection 36, the inner peripheral surface of described elastic projection 36 is inclined to set, the first described annular mounting groove 351 is near safety check 6 one side settings, described the first annular mounting groove 351 and the second annular mounting groove 352 are all suitable with ring-type mounting blocks 731, the opposite side that described arcuate segment 63 is connected with bend section 62 relatively can be conflicted and be connected with limited part 722, described limited part 722 is established depressed part 7221 with arcuate segment 63 joints, on described limited part 722, be coated with rubber layer completely, in the time that deep-well pump is in transportation process, retaining ring 73 is fixed in to the first annular mounting groove 351 when interior by ring-type mounting blocks 731, limited part 722 remains butt state with safety check 6, make safety check 6 be fitted in all the time seal ring 32 surfaces, make safety check 6 play up and down in the time being subject to external influence power, and then can effectively reduce the noise producing because of in transport deep-well pump process, treat deep-well pump need to be installed, ring-type mounting blocks 731 can be moved up, owing on elastic projection 36, inclined-plane being set, therefore ring-type mounting blocks 731 can be in inclined-plane moves to the second annular mounting groove 352, make limit stoper 7 in normal working, save the 3 interior seal rings 32 that embedded metal skeleton is set in water outlet, and the spool body 61 of safety check 6 is set to bend section 62 and arcuate segment 63, the outer surface of arcuate segment 63 forms sealed department 631, sealed department 631 is tightly connected with seal ring 32, in the time that motor 4 is started working, under the effect of impeller 22, water is flowed from below to up, safety check 6 is upwards washed open, current are flowed out from the water outlet 31 of water outlet joint 3, there is arranging of limited part 722 can effectively prevent that current are excessive, safety check 6 is collided to water outlet joint 3 to be bumped against with water outlet joint 3 and damages, improve the working life of safety check 6, limited part 722 arranges depressed part 7221 with arcuate segment 63 joints, can make safety check 6 in the time being subject to water impact, well be connected in depressed part 7221, make the position of safety check 6 be difficult for changing, and then make spool body 61 under the effect of self gravitation and upper end hydraulic pressure, move down reset time position there will not be deviation, and then can improve the sealing effect of safety check 6, one deck rubber layer is set on limited part 722, because rubber has elasticity, therefore can be in the time spool body 61 jack-up and limited part 722 being collided compared with mass-flow pressure the effect of its buffering and protection, improve the working life of safety check 6, and because rubber has soft performance, therefore also can effectively reduce the noise that spool body 61 and limited part 722 produce, the design of bend section 62 and arcuate segment 63 can play buffer function to current.
As preferred version, seal ring comprises with seal ring body 321 and is integrally formed at the sealing lip 322 on seal ring body 321, in the time that motor 4 quits work, spool body 61 forms and is tightly connected with the sealing lip 322 of seal ring 32 under the effect of own wt and upper end hydraulic pressure, between arc-shaped recess 323 and sealed department 631, forming ball face sealing and can further improve sealing effect, there is backflow phenomenon in anti-sealing.
As preferred version, set firmly stator 33 in water outlet joint 3 other ends that are relatively provided with water outlet 31, stator 33 sets firmly cover plate of guide blade 34 with water outlet joint 3 the other ends that are connected relatively, between adjacent guide vane cover plate 34, form and save with water outlet the water intake that 3 inside communicate, cover plate of guide blade 34 centers are provided with through hole 341, in through hole 341, be provided with rubber bush bearing 9, splined shaft 23 relatively and the coupling the other end be installed with axle sleeve 231, axle sleeve 231 is placed in rubber bush bearing 9, on the outer peripheral surface of axle sleeve 231, establish mounting hole 2311, and at the interior ball 2312 that arranges of mounting hole 2311, and establish lubricating grease in mounting hole 2311, when axle sleeve 231 is placed in rubber bush bearing 9 when interior, ball 2312 will make ball 2312 be subject to the extruding of rubber bush bearing 9 when contacting and be squeezed with rubber bush bearing 9, thereby the opening of mounting hole 2311 is opened, lubricating grease just can flow out and enter in rubber bush bearing 9, play lubrication effect, and then can effectively reduce the wearing and tearing between axle sleeve 231 and rubber bush bearing 9, reduce noise.
As preferred version, the quantity of mounting hole 2311 is 3, and is evenly distributed around axle sleeve 231 centers, the further lubrication effect between high axle sleeve 231 and rubber bush bearing 9, the working life of prolongation deep-well pump, reduction noise.
As preferred version; in the time of motor 4 normal work; under the effect of impeller 22; water is flowed from below to up, safety check 6 is upwards washed open, current are flowed out from the water outlet 31 of water outlet joint 3; the design that the opposite side being relatively connected with bend section 62 at arcuate segment 63 wraps up one deck rubber layer 74 completely can play buffer function in the time that safety check 6 and limited part 722 collide; reduce noise, better protect safety check 6, extend its working life.

Claims (5)

1. a deep-well pump, comprise into water and saving, the pump housing, water outlet joint, motor, pump connecting base, splined shaft, described water outlet joint is arranged on the upper end of the pump housing, described water inlet joint is arranged on the lower end of the pump housing, in the water inlet that arranges intaking on joint, in described water inlet, be provided with filter screen, the described pump housing comprises some joint volutes and impeller, motor is provided with output shaft, motor is connected with splined shaft by coupling, each impeller is all solidly set on splined shaft, motor is connected by pump connecting base with water inlet joint, described water outlet joint comprises water outlet, in described water outlet joint, safety check is set, it is characterized in that: the seal ring that is provided with embedded metal skeleton in described water outlet joint, described safety check comprise spool body and successively one connect and be arranged at the bend section on spool body, and with the arcuate segment of bend section opposite direction, described arcuate segment outer surface forms sealed department, between described sealed department and seal ring, be tightly connected, in described water outlet joint, be provided with limit stoper, described limit stoper comprises connecting ring and the supporting frame that one connects, described supporting frame comprises the supporting portion that one connects successively, limited part, extension part and joint, described limited part and connecting ring be arranged in parallel, described joint is connected with connecting ring and joint distributes along connecting ring radial direction, outside described supporting portion, be also arranged with retaining ring, described retaining ring outer peripheral surface is radially convexly equipped with ring-type mounting blocks, described water outlet joint inwall is provided with annular mounting groove, in described annular mounting groove, be provided with the elastic projection arranging in the form of a ring, described annular mounting groove is divided into two parallel the first annular mounting groove of establishing and the second annular mounting groove by elastic projection, the inner peripheral surface of described elastic projection is inclined to set, the first described annular mounting groove is near safety check one side setting, described the first annular mounting groove and the second annular mounting groove are all suitable with ring-type mounting blocks, the opposite side that described arcuate segment is connected with bend section relatively can be conflicted and be connected with limited part, described limited part and arcuate segment butt place establish depressed part, on described limited part, be coated with rubber layer completely.
2. deep-well pump according to claim 1, it is characterized in that: described seal ring comprises with seal ring body and is integrally formed at the sealing lip on seal ring body, described sealing lip and sealed department joint are provided with arc-shaped recess, between described arc-shaped recess and sealed department, form ball face sealing.
3. deep-well pump according to claim 2, it is characterized in that: the other end that described water outlet joint is provided with water outlet relatively sets firmly stator, save with water outlet the other end being connected sets firmly cover plate of guide blade to described stator relatively, between adjacent guide vane cover plate, form and the inner water intake communicating of water outlet joint, described cover plate of guide blade center is provided with through hole, in described through hole, be provided with rubber bush bearing, described splined shaft relatively and the coupling the other end be installed with axle sleeve, described axle sleeve is placed in rubber bush bearing, on the outer peripheral surface of described axle sleeve, be radially provided with mounting hole, in described mounting hole, be provided with ball, described mounting hole opening is provided with the portion that clasps for clasping ball, described ball and mounting hole bottom are supported and are provided with spring, in described mounting hole, be also filled with lubricating grease.
4. deep-well pump according to claim 3, is characterized in that: the quantity of described mounting hole is 3, and is evenly distributed around axle sleeve center.
5. deep-well pump according to claim 4, is characterized in that: the opposite side that described arcuate segment is connected with bend section relatively wraps up one deck rubber layer completely.
CN201420336589.8U 2014-06-23 2014-06-23 Deep-well pump Expired - Fee Related CN203939720U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420336589.8U CN203939720U (en) 2014-06-23 2014-06-23 Deep-well pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420336589.8U CN203939720U (en) 2014-06-23 2014-06-23 Deep-well pump

Publications (1)

Publication Number Publication Date
CN203939720U true CN203939720U (en) 2014-11-12

Family

ID=51859036

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420336589.8U Expired - Fee Related CN203939720U (en) 2014-06-23 2014-06-23 Deep-well pump

Country Status (1)

Country Link
CN (1) CN203939720U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106594301A (en) * 2016-12-22 2017-04-26 武汉船用机械有限责任公司 Bottom valve used for immersed pump well

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106594301A (en) * 2016-12-22 2017-04-26 武汉船用机械有限责任公司 Bottom valve used for immersed pump well
CN106594301B (en) * 2016-12-22 2019-11-05 武汉船用机械有限责任公司 A kind of bottom valve for immersed pump pump sump

Similar Documents

Publication Publication Date Title
CN203939720U (en) Deep-well pump
US2066505A (en) Means for excluding abrasive carrying liquid from bearings and joints
CN201627724U (en) Vertical multi-stage centrifugal pump
CN103216451A (en) Water-power-driving centrifugal pump
CN203939723U (en) Deep-well pump
CN203939722U (en) Deep-well pump
CN203939721U (en) Deep-well pump
CN104728124B (en) Multi-stage centrifugal pump
CN204082671U (en) Water outlet saves
CN204003589U (en) A kind of anti-corrosion centrifugal pump shaft mechanical seal
CN203770188U (en) Submersible pump base
CN203500044U (en) Segmented high-lift multistage submersible sand discharging pump
CN207420895U (en) Hydraulic suspension formula anti-leak immersible pump
CN203584884U (en) Submersible pump sealing device
CN207583639U (en) A kind of high-efficiency submersible pump
CN205478343U (en) S type double suction centrifugal pump
CN206234124U (en) A kind of No leakage centrifugal pump
CN203962492U (en) A kind of impeller housing structure of Novel belt wear ring
CN207261315U (en) Boosting energy-saving water pump
CN107100856A (en) A kind of heavy duty detergent high suction depth formula dry type double entry pump
CN210637253U (en) Vertical pipeline desulfurization pump
CN105697383A (en) Axial force self-balancing deep-well pump
CN214837327U (en) Sealing assembly of submersible pump
CN214998242U (en) Prevent blockking up sewage pump
CN203201822U (en) Submersible pump

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20141112

Termination date: 20180623

CF01 Termination of patent right due to non-payment of annual fee