CN108980068A - A kind of submersible pump for easy cleaning - Google Patents

A kind of submersible pump for easy cleaning Download PDF

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Publication number
CN108980068A
CN108980068A CN201810792136.9A CN201810792136A CN108980068A CN 108980068 A CN108980068 A CN 108980068A CN 201810792136 A CN201810792136 A CN 201810792136A CN 108980068 A CN108980068 A CN 108980068A
Authority
CN
China
Prior art keywords
fixedly connected
submersible pump
wall
plate
easy cleaning
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.)
Granted
Application number
CN201810792136.9A
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Chinese (zh)
Other versions
CN108980068B (en
Inventor
司露
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.)
JIANGSU ZHONGPAI PUMP Co.,Ltd.
Original Assignee
Jiangsu Zhanhong Irrigation Technology 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 Jiangsu Zhanhong Irrigation Technology Co Ltd filed Critical Jiangsu Zhanhong Irrigation Technology Co Ltd
Priority to CN201810792136.9A priority Critical patent/CN108980068B/en
Publication of CN108980068A publication Critical patent/CN108980068A/en
Application granted granted Critical
Publication of CN108980068B publication Critical patent/CN108980068B/en
Active legal-status Critical Current
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D13/00Pumping installations or systems
    • F04D13/02Units comprising pumps and their driving means
    • F04D13/06Units comprising pumps and their driving means the pump being electrically driven
    • F04D13/08Units comprising pumps and their driving means the pump being electrically driven for submerged use
    • F04D13/086Units comprising pumps and their driving means the pump being electrically driven for submerged use the pump and drive motor are both submerged
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00Details, component parts, or accessories
    • F04D29/007Details, component parts, or accessories especially adapted for liquid pumps
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00Details, component parts, or accessories
    • F04D29/66Combating cavitation, whirls, noise, vibration or the like; Balancing
    • F04D29/669Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for liquid pumps
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00Details, component parts, or accessories
    • F04D29/70Suction grids; Strainers; Dust separation; Cleaning
    • F04D29/708Suction grids; Strainers; Dust separation; Cleaning specially for liquid pumps

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

The invention belongs to submersible pump fields, especially a kind of submersible pump of easy cleaning, it is easy to damage for existing motor and rotation axis, it is difficult to carry out immersible pump cleaning and fixed problem is easily broken and be difficult to submersible pump when being put into underground, now propose following scheme: including the pump housing, the pump housing includes output section, water suction section is saved with water outlet, motor is installed in output section, resilient cushion, decoupling rod and spring, motor output end is connected with connecting shaft, shaft coupling, rotation axis and bearing block, fixed plate is equipped on the outside of connecting shaft, fixed plate is equipped with fixation hole and bearing, mounting plate is connected in water suction section side wall, mounting plate is equipped with through flow hole, connecting plate, mounting hole, filter chamber and filter cotton, support plate is connected at the top of the pump housing, support plate is equipped with connecting hole, movable axis, axle sleeve, reset spring, curved axis, link block and sawtooth Shape cassette tape, the present invention are able to extend motor and rotation axis service life, easy cleaning silt and are not easy to break.

Description

A kind of submersible pump for easy cleaning
Technical field
The present invention relates to submersible pump technical field more particularly to a kind of submersible pumps for easy cleaning.
Background technique
Submersible pump is pump housing impeller and the motor of impeller driven all to pull the plug a kind of water pump of work, have deep-well use and Work surface is with two kinds.Deep Submersible Pump is powered by protruding into the cable in well to motor, and transmission long axis is eliminated, thus is tied Structure is compact, light-weight, installation, use and convenient transfer, is having the tendency that the substituted borehole shaft driven (centrifugal) pump in power supply area.Submersible pump Motor has the types such as dry type, half dry type, filling type and wet type, and first 3 kinds require to seal and manufacture installation accuracy requirement It is higher, thus agricultural deep well submerged electric pump generallys use wet type motor, stator winding is using water-fast insulated conductor or fixed It is poured synthetic resin in sub- winding overhang and slot, water enters that motor internal influence is little, and sealing structure can greatly simplify, and only requires Sand control.
But existing submersible pump sand controlling result is poor, and is difficult to clear up, and is also needed in cleaning by electric pump entirety It removes, troublesome in poeration, in motor operating, rotation axis and motor vibration frequency are all higher, so that rotation axis is extremely easily broken off, Motor is also easily damaged, and reduces the service life and maintenance cycle of electric pump, and when submersible pump is put into underground, it is difficult to Submersible pump is effectively fixed, at the same submersible pump when being put into underground but also submersible pump is easy to break so that Submersible pump use cost greatly improves.
Therefore, we have proposed a kind of submersible pumps of easy cleaning to solve the above problems.
Summary of the invention
A kind of submersible pump for easy cleaning proposed by the present invention, solves that motor is easy to damage with rotation axis, is difficult to Cleaning is carried out to immersible pump and fixed problem is easily broken and be difficult to submersible pump when being put into underground.
To achieve the goals above, present invention employs following technical solutions:
A kind of submersible pump for easy cleaning, including the pump housing, the pump housing include output section, water suction section and water outlet Section, output section inner cavity are equipped with motor, and the motor outer wall is equipped with resilient cushion, and the resilient cushion side, which is fixedly connected with, to be subtracted Bar is shaken, described decoupling rod one end is fixedly connected with spring, and the output section outer wall is equipped with cushion, the cushion both ends top It is movably installed with bolt, one end of the bolt is flexibly connected with the pump housing, and the motor output end is rotatably connected to company Spindle, the one end of the connecting shaft are connected with shaft coupling, and the shaft coupling side is connected with rotation axis, the rotation axis Top is connected with bearing block in water outlet section inner cavity, and the rotation axis outer wall is fixedly connected with driving impeller, the company Fixed plate is equipped on the outside of spindle, the fixed plate center offers fixation hole, bearing, the fixation are equipped in the fixation hole Board ends top and bottom is connected with limit plate in water suction section inner wall, and activity connects in water suction section two sidewalls It is connected to mounting plate, several through flow holes are offered on the mounting plate, the mounting plate outer wall is fixedly connected to connecting plate, institute It states and offers mounting hole on connecting plate, the mounting plate two sides are fixedly connected to filter chamber, and the filtering cavity wall was equipped with Filter pulp, water outlet section inner cavity are fixedly connected to connecting tube in the bearing block two sides, and two connecting tube tops are fixed It is connected with the same outlet pipe, two sides are fixedly connected to support plate at the top of the pump housing, and connection is offered in the support plate Hole, the support plate bottom are movably installed with two movable axis, axle sleeve are connected on the movable axis, is set in the axle sleeve There is reset spring, the axle sleeve outer wall is fixedly connected with curved axis, and the curved axis one side wall is fixedly connected with link block, described Link block side is fixedly connected with zigzag cassette tape.
Preferably, output section bottom is fixedly connected with water suction section top, the water suction save bottom with it is described out Water section bottom is fixedly connected.
Preferably, the number of springs has several, several described springs are uniformly divided into three groups, and every group of number of springs is equal No less than four.
Preferably, cushion both ends top level elevation and the output horizontal height flush, the buffering Pad is made of silica gel material.
Preferably, there are six the driving impeller quantity, six driving impellers are uniformly arranged on outside the rotation axis Wall two sides.
Preferably, the mounting plate vertical width is greater than the pump housing outer wall thickness, several described through flow holes are uniformly set It is placed in the mounting plate outer wall.
Preferably, there are four the connecting plate quantity, four connecting plates are respectively arranged at the mounting plate surrounding, often At least provided with two mounting holes on a mounting plate.
Preferably, two curved axis are mirror settings, and the central point of two curved axis is connecting hole.
Compared with prior art, the beneficial effects of the present invention are:
1. by being provided with mounting plate, through flow hole, connecting plate, mounting hole, filter chamber and filter cotton, Neng Gouyou in the present invention Effect reduces silt and enters in submersible pump, in the silt cleared up in submersible pump it is not necessary that entirely remove submersible pump can be right Submersible pump is cleared up, easy to operate, convenient and efficient.
2. in the present invention by be provided with resilient cushion, decoupling rod, spring, shaft coupling, bearing block, fixed plate, fixation hole with The vibration of rotation axis and motor can be greatly decreased in bearing, avoid rotation axis and motor from being broken because long-time shakes, extend The maintenance cycle and service life of submersible pump.
3. in the present invention by be provided with cushion, support plate, connecting hole, movable axis, axle sleeve, reset spring, curved axis, Link block and zigzag cassette tape, can prevent submersible pump from breaking when submersible pump is put into underground, and can be to diving electricity Pump is effectively fixed, and prevents submersible pump from falling off.
The present invention can effectively reduce silt and enter in submersible pump, in the silt cleared up in submersible pump without that will dive Water power pump is entirely removed and can be cleared up submersible pump, easy to operate, convenient and efficient, and rotation axis and electricity can be greatly decreased The vibration of machine avoids rotation axis and motor from being broken because long-time shakes, and extends the maintenance cycle of submersible pump and uses the longevity Life, can be greatly decreased the vibration of rotation axis and motor, avoid rotation axis and motor from being broken because long-time shakes, extend latent The maintenance cycle and service life of water power pump.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of the submersible pump for easy cleaning proposed by the present invention;
Fig. 2 is the top view of fixed plate in a kind of submersible pump for easy cleaning proposed by the present invention;
Fig. 3 is the side view of mounting plate in a kind of submersible pump for easy cleaning proposed by the present invention;
Fig. 4 is the bottom view of support plate in a kind of submersible pump for easy cleaning proposed by the present invention.
In figure: 1 pump housing, 2 output sections, 3 water suction sections, 4 water outlet sections, 5 motors, 6 resilient cushions, 7 decoupling rods, 8 springs, 9 bufferings Pad, 10 bolts, 11 connecting shafts, 12 shaft couplings, 13 rotation axis, 14 bearing blocks, 15 driving impellers, 16 fixed plates, 17 fixation holes, 18 Bearing, 19 limit plates, 20 mounting plates, 21 through flow holes, 22 connecting plates, 23 mounting holes, 24 filter chambers, 25 filter cottons, 26 connecting tubes, 27 outlet pipes, 28 support plates, 29 connecting holes, 30 movable axis, 31 axle sleeves, 32 reset springs, 33 curved axis, 34 link blocks, 35 saws Dentation cassette tape.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.
Referring to Fig.1-4, a kind of submersible pump for easy cleaning, including the pump housing 1, the pump housing 1 include output section 2, water suction Section 3 and water outlet section 4,2 inner cavities of output section are equipped with motor 5, and 5 outer wall of motor is equipped with resilient cushion 6, and 6 side of resilient cushion is fixedly connected There is decoupling rod 7,7 one end of decoupling rod is fixedly connected with spring 8, and output 2 outer walls of section are equipped with cushion 9, and 9 both ends of cushion top is It is movably installed with bolt 10, one end of bolt 10 is flexibly connected with the pump housing 1, and 5 output end of motor is rotatably connected to connecting shaft 11, even 11 one end of spindle is connected with shaft coupling 12, and 12 side of shaft coupling is connected with rotation axis 13, and 13 top of rotation axis is in out 4 inner cavity of water section is connected with bearing block 14, and 13 outer wall of rotation axis is fixedly connected with driving impeller 15, is equipped on the outside of connecting shaft 11 Fixed plate 16,16 center of fixed plate offer fixation hole 17, are equipped with bearing 18 in fixation hole 17, at the top of 16 both ends of fixed plate with Bottom is connected with limit plate 19 in water suction 3 inner walls of section, and water suction section is connected with mounting plate 20 in 3 two sidewalls, pacifies Several through flow holes 21 are offered in loading board 20,20 outer wall of mounting plate is fixedly connected to connecting plate 22, opens up on connecting plate 22 There is mounting hole 23,20 two sides of mounting plate are fixedly connected to filter chamber 24, and 24 inner wall of filter chamber is equipped with filter cotton 25, water outlet section 4 Inner cavity is fixedly connected to connecting tube 26 in 14 two sides of bearing block, and two 26 tops of connecting tube are fixedly connected with the same outlet pipe 27,1 top two sides of the pump housing are fixedly connected to support plate 28, and connecting hole 29 is offered in support plate 28, and 28 bottom of support plate is living Movable axis 30 there are two installing is moved, axle sleeve 31 is connected on movable axis 30, is equipped with reset spring 32, axle sleeve 31 in axle sleeve 31 Outer wall is fixedly connected with curved axis 33, and curved 33 one side wall of axis is fixedly connected with link block 34, and 34 side of link block is fixedly connected There is zigzag cassette tape 35.
Output 2 bottoms of section are fixedly connected with 3 top of water suction section, and water suction 3 bottoms of section are fixedly connected with 4 bottoms of water outlet section, bullet 8 quantity of spring has several, several springs 8 are uniformly divided into three groups, and every group of 8 quantity of spring is no less than four, 9 both ends of cushion Top level elevation and output 2 level height flushes of section, cushion 9 are made of silica gel material, and driving 15 quantity of impeller has six A, six driving impellers 15 are uniformly arranged on 13 outer wall two sides of rotation axis, and 20 vertical width of mounting plate is greater than the outer wall thickness of the pump housing 1 Degree, several through flow holes 21 are uniformly arranged on 20 outer wall of mounting plate, and there are four 22 quantity of connecting plate, and four connecting plates 22 are set respectively It is placed in 20 surrounding of mounting plate, at least provided with two mounting holes 23 on each mounting plate 20, two curved axis 33 are mirror settings, two The central point of a curved axis 33 is connecting hole 29.
Working principle: in the use of the present invention, the connecting hole 29 in support plate 28 is passed through using fixed rope and by fixed rope, Reset spring 32 rotates curved axis 33 on movable axis 30 using axle sleeve 31, while curved axis 33 is made by link block 34 Two zigzag cassette tapes 35 fit, and fix so that fixed rope is engaged, and recycle fixed rope that the pump housing 1 is put into underground, work as pump For body 1 when hard object is encountered in underground, cushion 9 can form a cushion effect to the pump housing 1, avoid the pump housing 1 from damaging, 10 energy of bolt It is enough that cushion 9 is fixed on the pump housing 1, restart motor 5, motor 5 makes rotation axis 13 by connecting shaft 11 and shaft coupling 12 It is rotated in bearing block 14, meanwhile, it rotates, is operated in motor 5 same in the bearing 18 that connecting shaft 11 is equipped in fixed plate 16 When, resilient cushion 6 is significantly cut down vibration with spring 8 by decoupling rod 7, and 15 turns of impeller of driving is driven when rotation axis 13 rotates It is dynamic so that external water can be flowed in water suction section 3 by the through flow hole 21 on mounting plate 20, at the same time filter chamber 24 with Silt can be filtered by filter cotton 25, prevent silt from blocking the pump housing 1, will utilize driving leaf after the external water sucking pump housing 1 Wheel 15 is discharged water to outlet pipe 27 from connecting tube 26 and takes the screw in mounting hole 23 when needing to clear up silt Under, silt can be cleared up taking out mounting plate 20 manually.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto, Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.

Claims (8)

1. a kind of submersible pump for easy cleaning, including the pump housing (1), which is characterized in that the pump housing (1) includes output section (2), water suction section (3) and water outlet section (4), the output section (2) inner cavity are equipped with motor (5), and motor (5) outer wall, which is equipped with, to be subtracted Shake pad (6), resilient cushion (6) side are fixedly connected with decoupling rod (7), and described decoupling rod (7) one end is fixedly connected with spring (8), output section (2) outer wall is equipped with cushion (9), is movably installed with bolt (10) at the top of cushion (9) both ends, One end of the bolt (10) is flexibly connected with the pump housing (1), and motor (5) output end is rotatably connected to connecting shaft (11), described connecting shaft (11) one end is connected with shaft coupling (12), and shaft coupling (12) side is connected with rotation Axis (13), rotation axis (13) top save (4) inner cavity in the water outlet and are connected with bearing block (14), the rotation axis (13) outer wall is fixedly connected with driving impeller (15), is equipped with fixed plate (16) on the outside of the connecting shaft (11), the fixed plate (16) center offers fixation hole (17), is equipped with bearing (18) in the fixation hole (17), fixed plate (16) the both ends top Portion and bottom are saved (3) inner wall in the water suction and are connected with limit plate (19), activity in the water suction section (3) two sidewalls It is connected with mounting plate (20), several through flow holes (21) is offered on the mounting plate (20), mounting plate (20) outer wall is equal It is fixedly connected with connecting plate (22), is offered mounting hole (23) on the connecting plate (22), mounting plate (20) two sides are solid Surely it is connected with filter chamber (24), filter chamber (24) inner wall is equipped with filter cotton (25), and the water outlet section (4) inner cavity is in the axis It holds seat (14) two sides to be fixedly connected to connecting tube (26), two connecting tube (26) tops are fixedly connected with the same water outlet It manages (27), two sides are fixedly connected to support plate (28) at the top of the pump housing (1), offer connecting hole on the support plate (28) (29), support plate (28) bottom is movably installed with two movable axis (30), is connected with axis on the movable axis (30) It covers (31), is equipped with reset spring (32) in the axle sleeve (31), axle sleeve (31) outer wall is fixedly connected with curved axis (33), institute It states curved axis (33) one side wall to be fixedly connected with link block (34), link block (34) side is fixedly connected with zigzag cassette tape (35)。
2. a kind of submersible pump for easy cleaning according to claim 1, which is characterized in that the output saves (2) Bottom is saved with the water suction and is fixedly connected at the top of (3), and the water suction section (3) bottom is saved (4) bottom with the water outlet and is fixedly connected.
3. a kind of submersible pump for easy cleaning according to claim 1, which is characterized in that spring (8) number Amount has several, several described springs (8) are uniformly divided into three groups, and every group of spring (8) quantity is no less than four.
4. a kind of submersible pump for easy cleaning according to claim 1, which is characterized in that the cushion (9) Both ends top level elevation and the output save (2) level height flush, and the cushion (9) is made of silica gel material.
5. a kind of submersible pump for easy cleaning according to claim 1, which is characterized in that the driving impeller (15) there are six quantity, six driving impellers (15) are uniformly arranged on the rotation axis (13) outer wall two sides.
6. a kind of submersible pump for easy cleaning according to claim 1, which is characterized in that the mounting plate (20) Vertical width is greater than the pump housing (1) outer wall thickness, several described through flow holes (21) are uniformly arranged on the mounting plate (20) Outer wall.
7. a kind of submersible pump for easy cleaning according to claim 1, which is characterized in that the connecting plate (22) There are four quantity, and four connecting plates (22) are respectively arranged at the mounting plate (20) surrounding, each mounting plate (20) On at least provided with two mounting holes (23).
8. a kind of submersible pump for easy cleaning according to claim 1, which is characterized in that two curved axis It (33) is mirror settings, the central point of two curved axis (33) is connecting hole (29).
CN201810792136.9A 2018-07-18 2018-07-18 Well submersible electric pump convenient to clean Active CN108980068B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810792136.9A CN108980068B (en) 2018-07-18 2018-07-18 Well submersible electric pump convenient to clean

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810792136.9A CN108980068B (en) 2018-07-18 2018-07-18 Well submersible electric pump convenient to clean

Publications (2)

Publication Number Publication Date
CN108980068A true CN108980068A (en) 2018-12-11
CN108980068B CN108980068B (en) 2020-08-21

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Family Applications (1)

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CN201810792136.9A Active CN108980068B (en) 2018-07-18 2018-07-18 Well submersible electric pump convenient to clean

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110886717A (en) * 2019-10-17 2020-03-17 湖南省中南水泵制造有限公司 High-efficiency energy-saving pump
CN111594437A (en) * 2020-06-29 2020-08-28 芜湖耀迪环保科技有限公司 Sewage intercepting water pump

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2787895Y (en) * 2005-04-15 2006-06-14 杨超 Minisize fan
CN205578304U (en) * 2016-03-11 2016-09-14 慈溪市附海蓝茂塑料制品厂 Household electric fan
CN106895029A (en) * 2016-11-29 2017-06-27 奇鋐科技股份有限公司 Shock-damping structure and its tandem fan
CN207064264U (en) * 2017-08-04 2018-03-02 无锡水文工程地质勘察院 Submersible pump
CN207120109U (en) * 2017-09-08 2018-03-20 宜昌洪亚科技有限公司 A kind of timber processing surface polishing equipment
CN207470476U (en) * 2017-10-21 2018-06-08 河北博一泵业有限公司 A kind of external protection guards of immersible pump
CN207485690U (en) * 2017-11-29 2018-06-12 江西佳通通风设备有限公司 A kind of FRP AXIAL-FLOW FANNER

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2787895Y (en) * 2005-04-15 2006-06-14 杨超 Minisize fan
CN205578304U (en) * 2016-03-11 2016-09-14 慈溪市附海蓝茂塑料制品厂 Household electric fan
CN106895029A (en) * 2016-11-29 2017-06-27 奇鋐科技股份有限公司 Shock-damping structure and its tandem fan
CN207064264U (en) * 2017-08-04 2018-03-02 无锡水文工程地质勘察院 Submersible pump
CN207120109U (en) * 2017-09-08 2018-03-20 宜昌洪亚科技有限公司 A kind of timber processing surface polishing equipment
CN207470476U (en) * 2017-10-21 2018-06-08 河北博一泵业有限公司 A kind of external protection guards of immersible pump
CN207485690U (en) * 2017-11-29 2018-06-12 江西佳通通风设备有限公司 A kind of FRP AXIAL-FLOW FANNER

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110886717A (en) * 2019-10-17 2020-03-17 湖南省中南水泵制造有限公司 High-efficiency energy-saving pump
CN111594437A (en) * 2020-06-29 2020-08-28 芜湖耀迪环保科技有限公司 Sewage intercepting water pump

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