CN113187733A - Sectional type parallel multistage pump - Google Patents

Sectional type parallel multistage pump Download PDF

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Publication number
CN113187733A
CN113187733A CN202110433777.7A CN202110433777A CN113187733A CN 113187733 A CN113187733 A CN 113187733A CN 202110433777 A CN202110433777 A CN 202110433777A CN 113187733 A CN113187733 A CN 113187733A
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CN
China
Prior art keywords
wall
rigid coupling
plate
pump body
sleeve
Prior art date
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Withdrawn
Application number
CN202110433777.7A
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Chinese (zh)
Inventor
郑慧彬
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Individual
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Individual
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Priority to CN202110433777.7A priority Critical patent/CN113187733A/en
Publication of CN113187733A publication Critical patent/CN113187733A/en
Withdrawn legal-status Critical Current

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    • 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
    • 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
    • F04D29/40Casings; Connections of working fluid
    • F04D29/42Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/426Casings; Connections of working fluid for radial or helico-centrifugal pumps 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
    • F04D29/60Mounting; Assembling; Disassembling
    • F04D29/62Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
    • F04D29/628Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps 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
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16MFRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M5/00Engine beds, i.e. means for supporting engines or machines on foundations
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16MFRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M7/00Details of attaching or adjusting engine beds, frames, or supporting-legs on foundation or base; Attaching non-moving engine parts, e.g. cylinder blocks

Abstract

The invention discloses a sectional type parallel multistage pump which comprises a pump body, fixing plates and a bottom shell, wherein the fixing plates are arranged on the outer wall of the pump body, the outer walls of the two fixing plates are fixedly connected with the pump body, the bottom shell is attached to the lower surfaces of the fixing plates, and an adjusting mechanism is arranged inside the bottom shell. This parallelly connected multistage pump of festival segmentation, through the riser, the sleeve, the cooperation of bottom plate and bolt etc. is used, the riser of rebound in the sleeve, highly convenient the pump body and the pipeline of different positions are connected through changing the drain pan, increase application range, through first protective housing, the second protective housing, the rectangular plate, the cooperation of even board and connecting pin etc. is used, first protective housing and second protective housing prevent that the surface of the pump body is impaired, play the guard action to the pump body, through the fibreboard, the cooperation of deadening felt and gypsum board etc. is used, the transmission of noise reduction can be carried out to aperture in the gypsum board, give sound insulation to whole mechanism, the pollution of noise reduction.

Description

Sectional type parallel multistage pump
Technical Field
The invention relates to the technical field of multistage pumps, in particular to a sectional type parallel multistage pump.
Background
The multistage pump is business turn over water section and middle section, through the centrifugal pump that the pull rod combination is in the same place, and its output water pressure can be very big, also relies on the rotation of impeller to be obtaining centrifugal force to the material, treat that gas density reaches the working range of mechanical vacuum pump and is taken out, thereby obtain high vacuum gradually, the multistage pump is a lot of, divide into according to the outward appearance difference: vertical multistage pump and horizontal multistage pump, festival segmentation multistage pump etc. in addition, but the parallelly connected multistage pump of current festival segmentation, the mounting height of the pump body is fixed, and inconvenient and the pipeline of co-altitude not are connected, lead to the practicality of overall structure to descend, and pump body during operation can produce the noise, causes noise pollution, adopts the bolt directly to be connected between the pump body and the drain pan, and the bolt directly receives the power of pump body during operation vibrations, causes bolt thread's damage easily, leads to the dismantlement of the inconvenient pump body to maintain.
Disclosure of Invention
The invention aims to provide a sectional type parallel multistage pump, which aims to solve the problem that the practicability of the whole mechanism is reduced because the installation height of a pump body is fixed and the pump body is inconvenient to connect with pipelines with different heights in the conventional sectional type parallel multistage pump in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a sectional type parallel multistage pump comprises a pump body, fixing plates and a bottom shell, wherein the fixing plates are arranged on the outer wall of the pump body, the outer walls of the two fixing plates are fixedly connected with the pump body, the bottom shell is attached to the lower surfaces of the fixing plates, and an adjusting mechanism is arranged inside the bottom shell;
the adjusting mechanism comprises a vertical plate, a sleeve, a bottom plate and a bolt;
two the upper surface of riser all with the inner chamber looks rigid coupling of drain pan, the sleeve has been cup jointed to the outer wall of riser, the outer wall clearance fit of telescopic inside recess and riser, telescopic lower surface mounting has the bottom plate, the upper surface and the telescopic lower surface looks rigid coupling of bottom plate, telescopic internally mounted has the bolt, the outer wall of bolt runs through sleeve and riser threaded connection, the outer wall and the sleeve threaded connection of bolt. The height of the bottom shell can be conveniently adjusted.
Preferably, the upper surface mounting of drain pan has the supporting seat, the lower surface of supporting seat and the upper surface looks rigid coupling of drain pan, the upper surface rigid coupling of supporting seat has the motor, the outer wall and the pump body looks rigid coupling of motor output shaft, the bottom rigid coupling of fixed plate has the inserted bar, two the outer wall of inserted bar all with the inside through-hole clearance fit of drain pan, the mounting bracket, two are installed to the inner chamber of drain pan the top of mounting bracket all with the inner chamber looks rigid coupling of drain pan. The installation between the pump body and the bottom shell is convenient.
Preferably, a protection mechanism is mounted on the upper surface of the bottom shell;
the protection mechanism comprises a first protection shell, a second protection shell, a rectangular plate, a connecting plate and a connecting pin;
the outer wall laminating of first protective case has the second protective case, the bottom of second protective case and first protective case all laminates with the upper surface of drain pan mutually, the equal rigid coupling in top of second protective case and first protective case has the rectangular plate, two the upper surface of rectangular plate all laminates even board, two even equal clearance fit in inside of board has the connecting pin, the outer wall of connecting pin runs through even inside through-hole and rectangular plate threaded connection of board. The surface of the pump body is prevented from being damaged.
Preferably, two of the connecting plates are arranged in parallel with respect to the rectangular plate. The connection firmness between the rectangular plates is increased.
Preferably, the second protective shell and the first protective shell are internally provided with a silencing mechanism;
the noise reduction mechanism comprises a fiber board, a sound insulation felt and a gypsum board;
two the outer wall of fibreboard respectively with second protective case and first protective case looks rigid coupling, the bottom rigid coupling of fibreboard has the deadening felt, the outer wall and second protective case and first protective case looks rigid coupling of deadening felt, the lower surface rigid coupling of deadening felt has the gypsum board, the outer wall and second protective case and first protective case looks rigid coupling of gypsum board. Less noise is transmitted.
Preferably, a fixing mechanism is installed inside the mounting rack;
the fixing mechanism comprises a groove plate, a cross rod, a threaded pin and a threaded cap;
two the outer wall of frid all with the inside through-hole clearance fit of mounting bracket, the internally mounted of frid has the horizontal pole, the outer wall of horizontal pole leads to groove clearance fit with the inside of frid, the both ends of horizontal pole all with mounting bracket looks rigid coupling, the one end that the horizontal pole was kept away from to the frid closely laminates with the inside recess of inserted bar, the lower surface mounting of frid has the screw thread round pin, the top of screw thread round pin and the lower surface looks rigid coupling of frid, mounting bracket and screw cap threaded connection are run through to the bottom of screw thread round pin, the outer wall of screw thread round pin leads to groove clearance fit with the inside of mounting bracket, the upper surface of screw cap closely laminates with the lower surface of mounting bracket. The pump body is convenient to maintain.
Compared with the prior art, the invention has the beneficial effects that: this multistage pump of festival segmentation parallel connection for traditional technique, has following advantage:
the vertical plates are moved upwards in the sleeve through the matching use of the vertical plates, the sleeve, the bottom plate, the bolts and the like, the two vertical plates drive the bottom shell to move, after the height of the bottom shell is properly adjusted, the bolts penetrate through the sleeve and are inserted into the vertical plates, then the bottom shell is fixed in height, the pump body is conveniently connected with pipelines at different positions through changing the height of the bottom shell, the use range is enlarged, and the practicability of the whole mechanism is improved;
the first protective shell and the second protective shell are sleeved on the outer wall of the pump body through the matching use of the first protective shell, the second protective shell, the rectangular plate, the connecting plate and the connecting pin, the connecting plate is placed on the upper surface of the rectangular plate, the connecting plate and the rectangular plate are connected together through the connecting pin, and the first protective shell and the second protective shell prevent the surface of the pump body from being damaged and protect the pump body;
the first protective shell and the second protective shell are filled with the fiber board, the sound-proof felt and the gypsum board through the matching use of the fiber board, the sound-proof felt and the gypsum board, and the small holes in the gypsum board can reduce the transmission of noise, insulate sound of the whole mechanism and reduce the pollution of the noise;
the groove plates are moved in the mounting rack through matching of the groove plates, the cross rods, the threaded pins, the threaded caps and the like, the groove plates move on the outer walls of the cross rods, the groove plates are inserted into the insertion rods, the threaded caps of the outer walls of the threaded pins are rotated to be tightly attached to the mounting rack, and then the groove plates are fixed in position, so that the pump body and the bottom shell are convenient to install, and the maintenance of the pump body is facilitated.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic partial cross-sectional view of FIG. 1;
FIG. 3 is a schematic view of a connection structure between the damper and the first casing in FIG. 1;
FIG. 4 is a schematic view of a connection structure between the adjusting mechanism and the bottom case in FIG. 2;
FIG. 5 is a schematic view of the connection structure of the shielding mechanism of FIG. 1;
fig. 6 is a schematic view of a connection structure between the fixing mechanism and the insertion rod in fig. 2.
In the figure: 1. the pump body, 2, fixed plate, 3, drain pan, 4, adjustment mechanism, 401, riser, 402, sleeve, 403, bottom plate, 404, bolt, 5, protection mechanism, 501, first protective case, 502, second protective case, 503, rectangular plate, 504, even board, 505, connecting pin, 6, amortization mechanism, 601, fibreboard, 602, deadening felt, 603, gypsum board, 7, fixed establishment, 701, frid, 702, horizontal pole, 703, threaded pin, 704, screw cap, 8, supporting seat, 9, motor, 10, inserted bar, 11, mounting bracket.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-6, the present invention provides a technical solution: a sectional type parallel multistage pump comprises a pump body 1, a fixing plate 2 and a bottom shell 3, wherein the fixing plate 2 is installed on the outer wall of the pump body 1, the pump body 1 is a sectional type multistage pump, the outer walls of the two fixing plates 2 are fixedly connected with the pump body 1, the bottom shell 3 is attached to the lower surface of the fixing plate 2, a cavity is processed inside the bottom shell 3, an adjusting mechanism 4 is installed inside the bottom shell 3, the adjusting mechanism 4 comprises a vertical plate 401, a sleeve 402, a bottom plate 403 and a bolt 404, the upper surfaces of the two vertical plates 401 are fixedly connected with the inner cavity of the bottom shell 3, the sleeve 402 is sleeved on the outer wall of the vertical plate 401, an inner groove of the sleeve 402 is in clearance fit with the outer wall of the vertical plate 401, the vertical plate 401 can move up and down in the sleeve 402, the bottom plate 403 is installed on the lower surface of the sleeve 402, the upper surface of the bottom plate is fixedly connected with the lower surface of the sleeve 402, the bolt 404 is installed inside the sleeve 402, the outer wall of the bolt 404 penetrates through the sleeve 402 and is in threaded connection with the vertical plate 401, bolts 404 fix the riser 601 in position, and the outer wall of the bolts 404 is screwed to the sleeve 402.
The last surface mounting of drain pan 3 has supporting seat 8, the lower surface of supporting seat 8 and the upper surface looks rigid coupling of drain pan 3, the upper surface rigid coupling of supporting seat 8 has motor 9, motor 9 drives the impeller rotation in the pump body 1, the outer wall of motor 9 output shaft and the 1 looks rigid coupling of the pump body, the bottom rigid coupling of fixed plate 2 has inserted bar 10, it is fluted to process in the inserted bar 10, the outer wall of two inserted bars 10 all with the inside through-hole clearance fit of drain pan 3, mounting bracket 11 is installed to the inner chamber of drain pan 3, mounting bracket 11 is used for installing fixed establishment 7, the top of two mounting brackets 11 all with the inner chamber looks rigid coupling of drain pan 3.
Protection mechanism 5 is installed on the upper surface of bottom shell 3, protection mechanism 5 includes first protective shell 501, second protective shell 502, rectangular plate 503, even board 504 and connecting pin 505, second protective shell 502 is laminated to the outer wall of first protective shell 501, the bottom of second protective shell 502 and first protective shell 501 all laminates with the upper surface of bottom shell 3, the top of second protective shell 502 and first protective shell 501 all processes semicircular groove, the top of second protective shell 502 and first protective shell 501 all rigid coupling has rectangular plate 503, the upper surface of two rectangular plates 503 all laminates even has even board 504, the inside equal clearance fit of two even boards 504 has connecting pin 505, the outer wall of connecting pin 505 is processed with the screw thread, the outer wall of connecting pin 505 runs through the inside through-hole of even board 504 and is connected with rectangular plate 503 threaded connection, connecting pin 505 links together rectangular plate 503 and even board 504, two connecting plates 504 set up with respect to rectangular plate 503 parallel.
The silencing mechanisms 6 are mounted inside the second protective shell 502 and the first protective shell 501, each silencing mechanism 6 comprises a fiberboard 601, an acoustic felt 602 and a gypsum board 603, the outer walls of the two fiberboards 601 are fixedly connected with the second protective shell 502 and the first protective shell 501 respectively, the bottom end of each fiberboard 601 is fixedly connected with the acoustic felt 602, the fiberboards 601 and the acoustic felt 602 have a sound insulation effect, the outer wall of each acoustic felt 602 is fixedly connected with the second protective shell 502 and the first protective shell 501, the lower surface of each acoustic felt 602 is fixedly connected with the gypsum board 603, small holes in the gypsum board 603 can reduce noise transmission, and the outer wall of each gypsum board 603 is fixedly connected with the second protective shell 502 and the first protective shell 501.
The fixing mechanism 7 is arranged inside the mounting rack 11, the fixing mechanism 7 comprises groove plates 701, cross rods 702, threaded pins 703 and threaded caps 704, the outer walls of the two groove plates 701 are in clearance fit with the inner through holes of the mounting rack 11, the cross rods 702 are arranged inside the groove plates 701, the outer walls of the cross rods 702 are in clearance fit with the inner through grooves of the groove plates 701, the groove plates 701 move on the outer walls of the cross rods 702, the two ends of the cross rods 702 are fixedly connected with the mounting rack 11, one ends, far away from the cross rods 702, of the groove plates 701 are tightly attached to the inner grooves of the plug rods 10, the threaded pins 703 are arranged on the lower surfaces of the groove plates 701, the top ends of the threaded pins 703 are fixedly connected with the lower surfaces of the groove plates 701, the groove plates 701 drive the threaded pins to move, the bottom ends of the threaded pins 703 penetrate through the mounting rack 11 to be in threaded connection with the threaded caps 704, the outer walls of the threaded pins 703 are in clearance fit with the inner through grooves of the mounting rack 11, the upper surfaces of the threaded caps 704 are tightly attached to the lower surfaces of the mounting rack 11, the threaded cap 704 fixes the position of the threaded pin 703.
In this example, when the segmented parallel multistage pump is used, firstly, the height of the bottom shell 3 is adjusted according to actual use requirements, the vertical plates 401 are moved upwards in the sleeve 402, the two vertical plates 401 drive the bottom shell 3 to move, when the height of the bottom shell 3 is properly adjusted, the bolts 404 are inserted into the vertical plates 401 through the sleeve 402, then the height of the bottom shell 3 is fixed, after the pump body 1 is connected with the motor 9, the pump body 1 drives the insertion rod 10 to be inserted into the bottom shell 3 through the fixing plate 2, the slotted plate 701 is moved in the mounting frame 11, the slotted plate 701 moves on the outer wall of the cross rod 702, the slotted plate 701 is inserted into the insertion rod 10, the threaded cap 704 rotating the outer wall of the threaded pin 703 is tightly attached to the mounting frame 11, then the position of the slotted plate 701 is fixed, meanwhile, the motor 9 falls into the supporting seat 8, the supporting seat 8 is connected with the motor 9, the first protective shell 501 and the second protective shell 502 are sleeved on the outer wall of the pump body 1, the tie sheet 504 is placed on the upper surface of the rectangular plate 503, the tie sheet 504 and the rectangular plate 503 are joined together using the connecting pin 505, and the integrated mechanism is sound-insulated by the fiberboard 601, the deadening felt 602, and the gypsum board 603 filled in the inside of the first and second casings 501, 502.
In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "disposed," "connected," "secured," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be communication between two elements or interaction relationship between two elements, unless otherwise specifically limited, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to specific situations.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The utility model provides a parallelly connected multistage pump of festival segmentation, includes the pump body (1), fixed plate (2) and drain pan (3), fixed plate (2), two are installed to the outer wall of the pump body (1) the outer wall of fixed plate (2) all with pump body (1) looks rigid coupling, the lower surface laminating of fixed plate (2) has drain pan (3), its characterized in that: an adjusting mechanism (4) is arranged in the bottom shell (3);
the adjusting mechanism (4) comprises a vertical plate (401), a sleeve (402), a bottom plate (403) and a bolt (404);
two the upper surface of riser (401) all with the inner chamber looks rigid coupling of drain pan (3), sleeve (402) have been cup jointed to the outer wall of riser (401), the inside recess of sleeve (402) and the outer wall clearance fit of riser (401), the lower surface mounting of sleeve (402) has bottom plate (403), the upper surface of bottom plate (403) and the lower surface looks rigid coupling of sleeve (402), the internally mounted of sleeve (402) has bolt (404), the outer wall of bolt (404) runs through sleeve (402) and riser (401) threaded connection, the outer wall and sleeve (402) threaded connection of bolt (404).
2. A segmented parallel multistage pump according to claim 1, characterized in that: the upper surface of drain pan (3) installs supporting seat (8), the lower surface of supporting seat (8) and the upper surface looks rigid coupling of drain pan (3), the upper surface rigid coupling of supporting seat (8) has motor (9), the outer wall and the pump body (1) looks rigid coupling of motor (9) output shaft, the bottom rigid coupling of fixed plate (2) has inserted bar (10), two the outer wall of inserted bar (10) all with the inside through-hole clearance fit of drain pan (3), mounting bracket (11), two are installed to the inner chamber of drain pan (3) the top of mounting bracket (11) all with the inner chamber looks rigid coupling of drain pan (3).
3. A segmented parallel multistage pump according to claim 1, characterized in that: the upper surface of the bottom shell (3) is provided with a protection mechanism (5);
the protection mechanism (5) comprises a first protection shell (501), a second protection shell (502), a rectangular plate (503), a connecting plate (504) and a connecting pin (505);
the outer wall laminating of first protecting crust (501) has second protecting crust (502), the bottom of second protecting crust (502) and first protecting crust (501) all laminates with the upper surface of drain pan (3) mutually, the equal rigid coupling in top of second protecting crust (502) and first protecting crust (501) has rectangular plate (503), two the upper surface of rectangular plate (503) all laminates even board (504), two the equal clearance fit in inside of even board (504) has connecting pin (505), the outer wall of connecting pin (505) runs through the inside through-hole and rectangular plate (503) threaded connection of even board (504).
4. A segmented parallel multistage pump according to claim 3, characterized in that: the two connecting plates (504) are arranged in parallel with respect to a rectangular plate (503).
5. A segmented parallel multistage pump according to claim 3, characterized in that: a silencing mechanism (6) is arranged in each of the second protective shell (502) and the first protective shell (501);
the sound attenuation mechanism (6) comprises a fiber board (601), an acoustic felt (602) and a gypsum board (603);
two the outer wall of fibreboard (601) respectively with second protective case (502) and first protective case (501) looks rigid coupling, the bottom rigid coupling of fibreboard (601) has deadening felt (602), the outer wall and second protective case (502) and first protective case (501) looks rigid coupling of deadening felt (602), the lower surface rigid coupling of deadening felt (602) has gypsum board (603), the outer wall and second protective case (502) and first protective case (501) looks rigid coupling of gypsum board (603).
6. A segmented parallel multistage pump according to claim 2, characterized in that: a fixing mechanism (7) is arranged in the mounting rack (11);
the fixing mechanism (7) comprises a groove plate (701), a cross rod (702), a threaded pin (703) and a threaded cap (704);
the outer walls of the two groove plates (701) are in clearance fit with the inner through hole of the mounting frame (11), a cross bar (702) is arranged in the groove plate (701), the outer wall of the cross bar (702) is in clearance fit with the inner through groove of the groove plate (701), the two ends of the cross rod (702) are fixedly connected with the mounting rack (11), one end of the groove plate (701) far away from the cross rod (702) is tightly attached to the inner groove of the inserted rod (10), the lower surface of the groove plate (701) is provided with a threaded pin (703), the top end of the threaded pin (703) is fixedly connected with the lower surface of the groove plate (701), the bottom end of the threaded pin (703) penetrates through the mounting frame (11) and is in threaded connection with the threaded cap (704), the outer wall of the threaded pin (703) is in clearance fit with the inner through groove of the mounting rack (11), the upper surface of the threaded cap (704) is tightly attached to the lower surface of the mounting frame (11).
CN202110433777.7A 2021-04-21 2021-04-21 Sectional type parallel multistage pump Withdrawn CN113187733A (en)

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Application Number Priority Date Filing Date Title
CN202110433777.7A CN113187733A (en) 2021-04-21 2021-04-21 Sectional type parallel multistage pump

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Application Number Priority Date Filing Date Title
CN202110433777.7A CN113187733A (en) 2021-04-21 2021-04-21 Sectional type parallel multistage pump

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CN212803185U (en) * 2020-07-02 2021-03-26 延安方汇石油工程技术服务有限公司 Bottom pouring and producing device for petroleum producing well
CN212838537U (en) * 2020-07-30 2021-03-30 青岛美海金属制品有限公司 Flange pump body bearing device

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108757494A (en) * 2018-07-03 2018-11-06 浙江融乐环境科技有限公司 A kind of fixed support base in the outdoor of water pump
CN209294134U (en) * 2019-01-09 2019-08-23 北京京海人机电泵控制设备有限公司 A kind of multistage low noise canned motor pump
CN211397948U (en) * 2019-12-31 2020-09-01 徐州潜龙泵业有限公司 Integral well submersible electric pump
CN211692870U (en) * 2020-02-16 2020-10-16 肖玲敏 Water pump protector
CN212803185U (en) * 2020-07-02 2021-03-26 延安方汇石油工程技术服务有限公司 Bottom pouring and producing device for petroleum producing well
CN212838537U (en) * 2020-07-30 2021-03-30 青岛美海金属制品有限公司 Flange pump body bearing device
AU2020101739A4 (en) * 2020-08-10 2020-09-17 Ping Liu A cleaning bracket for hysteroscopic surgical instruments
CN112510521A (en) * 2020-11-10 2021-03-16 国网江苏省电力有限公司连云港供电分公司 Wisdom aquaculture distribution control device

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