CN220667844U - Centrifugal pump with small flow and high lift - Google Patents

Abstract

The utility model discloses a small-flow high-lift centrifugal pump, which relates to the technical field of centrifugal pumps, and particularly relates to a small-flow high-lift centrifugal pump. This centrifugal pump of low discharge high lift can drive the lead screw through starting the second servo motor and rotate, utilizes the lead screw can drive the swivel nut for the swivel nut drives first closing cap and removes, can seal the water injection storehouse, prevents that there is the foreign matter to fall into in the inner chamber of water injection storehouse, through the inside at the gas tube aerifing, makes the air bag inflation, can extrude the inside water of shell, ensures the abundant discharge of air.

Description

Centrifugal pump with small flow and high lift

Technical Field

The utility model relates to the technical field of centrifugal pumps, in particular to a small-flow high-lift centrifugal pump.

Background

After the centrifugal pump is started, the pump shaft drives the impeller to rotate together at a high speed so as to force the liquid filled between the blades to rotate, under the action of the inertia centrifugal force, the liquid moves radially from the center to the periphery of the impeller, the liquid medium can obtain energy in the movement process of flowing through the impeller, so that the static pressure energy is increased, meanwhile, the flow rate is increased, after the liquid leaves the impeller and enters the pump shell, the flow passage in the shell is gradually enlarged and decelerated, part of kinetic energy is converted into static pressure energy, and finally flows into the discharge pipeline along the tangential direction, if the lift is to be increased, the serial impellers are generally adopted to increase the lift, so that the lift can be increased, the manufacturing cost is increased, the volume of the centrifugal pump is increased, the flow rate is difficult to control, the use process is not convenient enough, in addition, the water injection position of the centrifugal pump is generally in an opening state, foreign matters easily fall into the water injection position, and in addition, if the air is extruded only by the gravity of water, the air in the pump can be possibly caused to be incompletely discharged, and then the suction of water is prevented, and the continuous working process of the pump is influenced, so that the problem is solved by the centrifugal pump with small flow and high lift.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides a small-flow high-lift centrifugal pump, which solves the problems in the prior art.

In order to achieve the above purpose, the utility model is realized by the following technical scheme: the utility model provides a low-flow high-lift centrifugal pump, includes mount pad, first servo motor, shell, first servo motor fixed mounting is at the upper surface of mount pad, fixed mounting has the pivot on first servo motor's the output shaft, first impeller has been fixedly cup jointed in the left side of pivot surface, the fixed second impeller that has cup jointed in the right side of pivot surface, first impeller is in the inboard of shell with the second impeller, the delivery port is installed in the front of shell, the mounting groove has all been seted up to the inside of first impeller and second impeller, install the support column in the mounting groove, the other end fixed mounting of support column has the stopper, the surface of support column is provided with reset spring, the surface movable mounting of support column has the drive sleeve, the other end fixed mounting of drive sleeve has extension blade.

Optionally, the upper surface of shell installs the water injection storehouse, the left side movable mounting at water injection storehouse top has first closing cap, the right side fixed mounting at water injection storehouse top has the second closing cap, the left side fixed mounting in water injection storehouse has the mounting bracket, the front fixed mounting of mounting bracket has the second servo motor, fixed mounting has the lead screw on the output shaft of second servo motor, the surface threaded connection of lead screw has the swivel nut, the right side and the first closing cap fixed connection of swivel nut are in the same place.

Optionally, an air bag is installed at the bottom of the second sealing cover, an air charging tube is installed in the air bag, and the air charging tube is located on the upper surface of the second sealing cover.

Optionally, the left side fixed mounting of swivel nut has the gag lever post, the logical groove with gag lever post looks adaptation is seted up to the left side of mounting bracket.

Optionally, the diameter of the limiting block is one to two centimeters larger than that of the supporting column, and the reset spring is fixedly connected with the driving sleeve.

Optionally, the inside of drive cover has seted up the drive groove, the drive groove of the inside seting up of drive cover is with stopper looks adaptation.

The utility model provides a small-flow high-lift centrifugal pump, which has the following beneficial effects:

1. this centrifugal pump of low discharge high lift can improve the lift of water through mutually supporting between first impeller and the second impeller, and when the rotational speed of first impeller and second impeller became big, the centrifugal force that extension blade received also can become big thereupon, and extension blade can lead to the fact the extension to reset spring this moment for extension blade outwards removes, can effectually reduce the passage of discharge, increases the power of rivers simultaneously, realizes the purpose of high lift low discharge.

2. This centrifugal pump of low discharge high lift can drive the lead screw through starting the second servo motor and rotate, utilizes the lead screw can drive the swivel nut for the swivel nut drives first closing cap and removes, can seal the water injection storehouse, prevents that there is the foreign matter to fall into in the inner chamber of water injection storehouse, through the inside at the gas tube aerifing, makes the air bag inflation, can extrude the inside water of shell, ensures the abundant discharge of air.

Drawings

FIG. 1 is a schematic side view of the present utility model;

FIG. 2 is a schematic view of the internal perspective of the housing of the present utility model;

FIG. 3 is a schematic view of the internal perspective of the second impeller of the present utility model;

FIG. 4 is a schematic view of a driving sleeve of the present utility model;

fig. 5 is a schematic view of a structure of a first cover of the present utility model.

In the figure: 1. a mounting base; 2. a first servo motor; 3. a housing; 4. a water outlet; 5. a first impeller; 6. a second impeller; 7. a support column; 8. a limiting block; 9. a return spring; 10. a drive sleeve; 11. extending the blade; 12. a water injection bin; 13. a first cover; 14. a second cover; 15. a mounting frame; 16. a second servo motor; 17. a screw rod; 18. a screw sleeve; 19. a limit rod; 20. an air bag; 21. and (5) an inflation tube.

Description of the embodiments

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

Referring to fig. 1 to 4, the present utility model provides a technical solution: the utility model provides a centrifugal pump of low discharge high lift, including mount pad 1, first servo motor 2, shell 3, first servo motor 2 fixed mounting is at the upper surface of mount pad 1, fixed mounting has the pivot on the output shaft of first servo motor 2, first impeller 5 has been cup jointed in the fixed left side of pivot surface, second impeller 6 has been cup jointed on the fixed right side of pivot surface, first impeller 5 is in the inboard of shell 3 with second impeller 6, the delivery port 4 is installed in the front of shell 3, the mounting groove has all been seted up to the inside of first impeller 5 and second impeller 6, install support column 7 in the mounting groove, utilize support column 7 can support reset spring 9, avoid bending over to appear and lead to breaking down when reset spring 9 takes place deformation, the other end fixed mounting of support column 7 has stopper 8, the diameter of stopper 8 is greater than the diameter of support column 7 one to two centimetres, utilize stopper 8 can be spacing to drive sleeve 10, avoid drive sleeve 10 to break away from the surface of support column 7, reset spring 9 and drive sleeve 10 fixed connection are in the same place, can play extension blade 11 to extension effect to the inside drive blade 11 by the elasticity that reset spring 9 provided, the inside drive blade 7 is set up, reset spring 9 and drive blade 10 drive blade 11's inside the extension sleeve 11 is equipped with extension blade 11, the inside drive blade 11 is equipped with extension groove, the drive blade 11 is equipped with the inside the drive blade 11, the extension groove is equipped with the drive blade 11, and drive blade 11 extension inner diameter extension is suitable for the inside the extension groove, and drive blade 11 is equipped with extension, and drive blade extension 11, and drive blade extension is equipped with extension.

Referring to fig. 2 and 5, the water injection bin 12 is mounted on the upper surface of the housing 3, the first sealing cover 13 is movably mounted on the left side of the top of the water injection bin 12, the water injection bin 12 can be conveniently sealed by using the movable design of the first sealing cover 13, foreign matters are prevented from entering the inner cavity of the water injection bin 12, the second sealing cover 14 is fixedly mounted on the right side of the top of the water injection bin 12, the mounting frame 15 is fixedly mounted on the left side of the water injection bin 12, the second servo motor 16 is fixedly mounted on the front side of the mounting frame 15, the lead screw 17 is fixedly mounted on the output shaft of the second servo motor 16, the screw sleeve 18 is in threaded connection with the outer surface of the lead screw 17, the limit rod 19 is fixedly mounted on the left side of the screw sleeve 18, a through groove matched with the limit rod 19 is formed in the left side of the mounting frame 15, the screw sleeve 18 can be limited by using the limit rod 19, so that the screw sleeve 18 is smoother in driving, the phenomenon of rotation in the moving process of the screw sleeve 18 is prevented, and the right side of the screw sleeve 18 is fixedly connected with the first sealing cover 13.

Referring to fig. 5, an air bag 20 is installed at the bottom of the second cover 14, an air tube 21 is installed inside the air bag 20, the air tube 21 is located on the upper surface of the second cover 14, and the volume of the air bag 20 is increased by inflation, so that water in the inner cavity of the water injection bin 12 can be extruded, and air is fully discharged.

In summary, when the centrifugal pump with low flow and high lift is used, firstly, a user needs to start the second servo motor 16 to drive the screw rod 17 to rotate, and drive the screw sleeve 18 by using the screw rod 17, so that the screw sleeve 18 drives the first sealing cover 13 to move, the water injection bin 12 is opened, then the air inflation tube 21 is inflated, the air bag 20 is inflated, the water inside the casing 3 is extruded, the air is fully discharged, the rotation speeds of the first impeller 5 and the second impeller 6 are required to be increased when the stroke is to be increased, the centrifugal force borne by the extension blades 11 is also increased when the rotation speeds of the first impeller 5 and the second impeller 6 are increased, and at the moment, the extension blades 11 stretch the reset spring 9, so that the extension blades 11 move outwards, the water flow can be effectively reduced, and the power of the water flow is increased.

In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are based on directions or positional relationships shown in the drawings, are merely for convenience of description and simplification of description, and do not indicate or imply that the apparatus or element to be referred to must have a specific direction, be constructed and operated in the specific direction, and thus should not be construed as limiting the present utility model; the terms "first," "second," "third," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "coupled," and the like are to be construed broadly, and may be fixedly coupled, detachably coupled, or integrally coupled, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The utility model provides a centrifugal pump of low discharge high lift, includes mount pad (1), first servo motor (2), shell (3), first servo motor (2) fixed mounting is at the upper surface of mount pad (1), its characterized in that: the output shaft of the first servo motor (2) is fixedly provided with a rotating shaft, the left side of the outer surface of the rotating shaft is fixedly sleeved with a first impeller (5), the right side of the outer surface of the rotating shaft is fixedly sleeved with a second impeller (6), the first impeller (5) and the second impeller (6) are positioned at the inner side of the shell (3), the front side of the shell (3) is provided with a water outlet (4), the novel impeller is characterized in that mounting grooves are formed in the first impeller (5) and the second impeller (6), a supporting column (7) is mounted in each mounting groove, a limiting block (8) is fixedly mounted at the other end of each supporting column (7), a reset spring (9) is arranged on the outer surface of each supporting column (7), a driving sleeve (10) is movably mounted on the outer surface of each supporting column (7), and extension blades (11) are fixedly mounted at the other end of each driving sleeve (10).

2. A low flow high lift centrifugal pump according to claim 1, wherein: the upper surface mounting of shell (3) has water injection storehouse (12), the left side movable mounting at water injection storehouse (12) top has first closing cap (13), the right side fixed mounting at water injection storehouse (12) top has second closing cap (14), the left side fixed mounting of water injection storehouse (12) has mounting bracket (15), the front fixed mounting of mounting bracket (15) has second servo motor (16), fixed mounting has lead screw (17) on the output shaft of second servo motor (16), the surface threaded connection of lead screw (17) has swivel nut (18), the right side and the first closing cap (13) fixed connection of swivel nut (18) are in the same place.

3. A low flow high lift centrifugal pump according to claim 2, wherein: an air bag (20) is arranged at the bottom of the second sealing cover (14), an air charging tube (21) is arranged in the air bag (20), and the air charging tube (21) is positioned on the upper surface of the second sealing cover (14).

4. A low flow high lift centrifugal pump according to claim 2, wherein: the left side of swivel nut (18) fixed mounting has gag lever post (19), the logical groove with gag lever post (19) looks adaptation is seted up in the left side of mounting bracket (15).

5. A low flow high lift centrifugal pump according to claim 1, wherein: the diameter of the limiting block (8) is one to two centimeters larger than that of the supporting column (7), and the reset spring (9) is fixedly connected with the driving sleeve (10).

6. A low flow high lift centrifugal pump according to claim 1, wherein: the driving groove is formed in the driving sleeve (10), and the driving groove formed in the driving sleeve (10) is matched with the limiting block (8).