CN219754816U

CN219754816U - Single-stage high-lift centrifugal water pump

Info

Publication number: CN219754816U
Application number: CN202223603185.4U
Authority: CN
Inventors: 熊俊; 熊明汉
Original assignee: Shenzhen Chenzhou Electrical Appliance Co ltd
Current assignee: Shenzhen Chenzhou Electrical Appliance Co ltd
Priority date: 2022-12-30
Filing date: 2022-12-30
Publication date: 2023-09-26
Anticipated expiration: 2032-12-30

Abstract

The utility model relates to a single-stage high-lift centrifugal water pump, which comprises a base, wherein the upper surface of the base is provided with a pressurizing groove and a V-shaped groove, both ends of the V-shaped groove are communicated with the pressurizing groove, and the inner side wall of one end of the V-shaped groove, which is far away from the pressurizing groove, is provided with a water outlet; the water pump also comprises an end cover for sealing the pressurizing groove and the V-shaped groove, a water inlet is arranged on the end cover, and an impeller mechanism for extruding water flowing in from the water inlet out of the water outlet is arranged in the pressurizing groove; the utility model has simple integral structure, the water outlet structure with the outlet cross section smaller than the inlet cross section is formed by the V-shaped groove, so that the lift can be improved, and the two arms of the V-shaped groove are communicated with the water outlet, so that the liquid with the maximum edge speed of the pressurizing groove can be guided out of the water outlet no matter the impeller mechanism is positively transmitted or reversely rotated, the influence of vortex can be greatly reduced by the diversion island, and the lift can be further improved.

Description

Single-stage high-lift centrifugal water pump

Technical Field

The utility model relates to the technical field of miniature water pumps, in particular to a single-stage high-lift centrifugal water pump.

Background

A water pump is a machine that delivers or pressurizes a liquid. It transmits mechanical energy or other external energy of prime mover to liquid to increase energy of liquid, and is mainly used for conveying liquid including water, oil, acid-alkali liquor, emulsion, suspension emulsion and liquid metal, etc. and can also be used for conveying liquid, gas mixture and liquid containing suspended solid matter. The technical parameters of the water pump performance include flow, suction head, lift, shaft power, water power, efficiency and the like, and can be classified into a volumetric water pump, a vane pump and the like according to different working principles. The displacement pump uses the change of the volume of the working chamber to transfer energy; the vane pump is a type of centrifugal pump, axial flow pump, mixed flow pump, etc. that uses the interaction of rotary vanes with water to transfer energy.

At present, for the existing micro vane pump with a water outlet on the radial symmetrical middle surface, the driving force cannot be further increased due to the limitation of small volume requirement, and the adopted speed increasing mode is to directly pressurize and accelerate the water flow through the impeller on the rotating shaft, so that the interference vortex formed after the water flow enters the cavity is more, the lift is shorter than expected, and therefore, the mechanism of the pump needs to be specially improved to further increase the lift.

Disclosure of Invention

The utility model aims to overcome the defects in the prior art and provide a single-stage high-lift centrifugal water pump which can well solve the problems.

The technical scheme adopted by the utility model for solving the technical problems is as follows:

the utility model provides a single-stage high-lift centrifugal water pump, this water pump includes the base, the upper surface of base is equipped with pressure boost groove and V-arrangement groove, the both ends in V-arrangement groove all with pressure boost groove intercommunication, be equipped with the delivery port on the inside wall of the one end of V-arrangement groove that keeps away from the pressure boost groove; the water pump further comprises an end cover for sealing the pressurizing groove and the V-shaped groove, a water inlet is formed in the end cover, and an impeller mechanism for pressing water flowing in from the water inlet out of the water outlet is arranged in the pressurizing groove.

The single-stage high-lift centrifugal water pump provided by the utility model has the advantages that the pressurizing groove is circular, and the side walls of the V-shaped groove, which are opposite to each other, are tangent to the inner wall of the pressurizing groove.

The utility model relates to a single-stage high-lift centrifugal water pump, wherein the water inlet and the pressurizing groove are coaxially arranged.

The utility model relates to a single-stage high-lift centrifugal water pump, wherein an impeller mechanism comprises a centrifugal impeller and a rotating shaft for driving the centrifugal impeller to rotate; the centrifugal impeller, the rotating shaft, the water inlet and the pressurizing groove are coaxial.

The utility model relates to a single-stage high-lift centrifugal water pump, wherein the lower surface of a base is provided with a mounting groove and a bottom cover for sealing the mounting groove; the rotating shaft stretches into the mounting groove, and a driving mechanism for driving the rotating shaft to rotate is arranged in the mounting groove.

The utility model discloses a single-stage high-lift centrifugal water pump, wherein the driving mechanism comprises rotor magnetic steel coaxially fixed on a rotating shaft, a barrel shell for sealing the rotor magnetic steel and the rotating shaft on the bottom surface of a mounting groove, a stator iron core arranged opposite to the rotor magnetic steel, and a wire frame coil wound on the stator iron core; the barrel body shell with base integrated into one piece just with the direct intercommunication of pressure boost groove, the both ends of barrel body shell all are equipped with the fixed the bearing of pivot.

The utility model discloses a single-stage high-lift centrifugal water pump, wherein a flow guide island is formed at the position of a base between two ends of a V-shaped groove and a pressurizing groove.

The utility model discloses a single-stage high-lift centrifugal water pump, wherein a guide island is triangular, the smaller end of the guide island is opposite to a water outlet, a movable baffle plate is rotatably connected to the smaller end of the guide island, the rotating shaft of the movable baffle plate is perpendicular to the flow and direction of water flow, an arc avoidance position is arranged at the joint of two ends of a V-shaped groove corresponding to the movable baffle plate, and the water outlet is positioned on the arc avoidance position.

The utility model discloses a single-stage high-lift centrifugal water pump, wherein stop positions for stopping a movable baffle plate are arranged on the left side and the right side of a water outlet on arc avoidance positions, and when a centrifugal impeller rotates positively, the movable baffle plate is propped against the stop positions on the right side of the water outlet and closes a right end channel of a V-shaped groove; when the centrifugal impeller reversely rotates, the movable baffle plate abuts against a stop position positioned at the left side of the water outlet and closes the left end channel of the V-shaped groove.

The utility model has the beneficial effects that: the water outlet structure with the cross-sectional area of the outlet smaller than that of the inlet is formed through the V-shaped groove, so that water flow can have larger lift after being sprayed out of the water outlet, two arms of the V-shaped groove are communicated with the water outlet, and liquid with the maximum edge speed of the pressurizing groove can be guided out of the water outlet no matter the impeller mechanism rotates positively or reversely, so that the lift can be further improved.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the present utility model will be further described with reference to the accompanying drawings and embodiments, in which the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained by those skilled in the art without inventive effort:

fig. 1 is an overall construction diagram of a single stage high lift centrifugal water pump of the present utility model.

Fig. 2 is an exploded bird's eye view of fig. 1.

Fig. 3 is an assembly view of the stop tab of the single stage high lift centrifugal water pump of the present utility model.

Fig. 4 is an exploded bottom view of the single stage high lift centrifugal water pump of the present utility model.

Fig. 5 is a cross-sectional view of a single stage high lift centrifugal water pump of the present utility model.

Detailed Description

The terms "first," "second," "third," and "fourth" and the like in the description and in the claims and drawings are used for distinguishing between different objects and not necessarily for describing a particular sequential or chronological order. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those listed steps or elements but may include other steps or elements not listed or inherent to such process, method, article, or apparatus.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the utility model. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.

"plurality" means two or more. "and/or", describes an association relationship of an association object, and indicates that there may be three relationships, for example, a and/or B, and may indicate: a exists alone, A and B exist together, and B exists alone. The character "/" generally indicates that the context-dependent object is an "or" relationship.

Moreover, the terms "upper, lower, left, right, upper end, lower end, longitudinal" and the like that represent the orientation are all referred to with reference to the attitude position of the apparatus or device described in this scheme when in normal use.

In order to make the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the following description will be made in detail with reference to the technical solutions in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by a person skilled in the art without any inventive effort, are intended to be within the scope of the present utility model, based on the embodiments of the present utility model.

As shown in figures 1-5, the single-stage high-lift centrifugal water pump of the preferred embodiment of the utility model comprises a base 1, wherein a pressurizing groove 2 and a V-shaped groove 3 are arranged on the upper surface of the base 1, two arms of the V-shaped groove 3 are communicated with the pressurizing groove 2, and a water outlet 4 is arranged on the inner side wall of one end of the V-shaped groove 3 away from the pressurizing groove 2; the water pump further comprises an end cover 5 for sealing the pressurizing tank 2 and the V-shaped groove 3, a water inlet 6 is arranged on the end cover 5, an impeller mechanism 7 for extruding water flowing in from the water inlet 6 out of the water outlet 4 is arranged in the pressurizing tank 2, and when the water pump is operated, as the two arms of the V-shaped groove 3 are communicated with the water outlet 4, the liquid with the maximum edge speed of the pressurizing tank 2 can be led out of the water outlet 4 no matter the impeller mechanism 7 rotates positively or reversely, so that water can have larger lift after being sprayed out of the water outlet 4, the water flowing into the V-shaped groove 3 can be prevented from being influenced by vortex generated by the impeller mechanism 7, and the speed loss of the water flowing into the V-shaped groove 3 is reduced.

Preferably, the pressurizing groove 2 is circular, and the side walls of the two arms of the V-shaped groove 3, which are away from each other, are tangential to the inner wall of the pressurizing groove 2, so that the water flow pushed by the impeller mechanism 7 can flow into the V-shaped groove 3 along the tangential direction, and the speed loss is reduced.

Specifically, the water inlet 6 is coaxially arranged with the pressurizing tank 2, so as to avoid the influence of deceleration on the water flow at the inner edge part of the pressurizing tank 2.

Preferably, the impeller mechanism 7 includes a centrifugal impeller 71, and a rotation shaft 72 that drives the centrifugal impeller 71 to rotate; the centrifugal impeller 71, the rotating shaft 72, the water inlet 6 and the pressurizing tank 2 are coaxial, and further, the lower surface of the base 1 is provided with a mounting groove 8 and a bottom cover 9 for sealing the mounting groove 8; the rotating shaft 72 extends into the mounting groove 8, a driving mechanism 10 for driving the rotating shaft 72 to rotate is arranged in the mounting groove 8, wherein the driving mechanism 10 comprises rotor magnetic steel 101 coaxially fixed on the rotating shaft 72, a barrel body shell 102 for sealing the rotor magnetic steel 101 and the rotating shaft 72 on the bottom surface of the mounting groove 8, a stator iron core 103 arranged opposite to the rotor magnetic steel 101, and a wire frame coil 104 wound on the stator iron core 103; the barrel body shell 102 is integrally formed with the base 1 and is directly communicated with the pressurizing tank 2, bearings 16 for fixing the rotating shaft 72 are arranged at two ends of the barrel body shell 102, and an induction motor structure is formed by magnetic steel and a wire frame coil 104, so that the driving structure is simple, easy to manufacture, reliable in operation, convenient to maintain, firm and durable, and meanwhile, complete isolation of the coil and water in the pressurizing tank 2 can be realized.

Preferably, the base 1 is located at the position between the two ends of the V-shaped groove 3 and the pressurizing groove 2 to form a diversion island 11, so that water flow at the inner edge of the pressurizing groove 2 can smoothly enter an arm of the V-shaped groove 3, and then the water pump is sprayed out through the water outlet 4, meanwhile, vortex generated by the centrifugal impeller 71 at the diversion island 11 can be counteracted, so that the speed loss of water flow with the maximum linear speed at the inner edge of the pressurizing groove 2 is reduced to the minimum, and the effect of lifting the lift is further achieved.

Preferably, the diversion island 11 is triangle-shaped and its smaller end is just right with delivery port 4, the bigger end that is opposite with smaller end corresponds centrifugal impeller 71 and is equipped with arc sunken 12, in order to dodge centrifugal impeller 71's rotation, further, the rotation is connected with movable separation blade 13 on the smaller end of diversion island 11, movable separation blade 13's rotation axis 131 is perpendicular with the outflow direction of rivers, make movable separation blade 13 can left and right sides beat, the both ends junction of V-arrangement groove 3 corresponds movable separation blade 13 and is equipped with the arc that supplies its left and right sides to incline white and keeps away and put down position 14, delivery port 4 is located on the positive central position of arc and keeps down position 14, in order to guarantee that rivers all can straight line entering delivery port 4 from the both arms inflow of V-arrangement groove 3, avoid taking place great speed loss in the delivery port 4 in-process, further, the arc keeps down position 14 is last to be located the left and right sides of delivery port 4 all to be equipped with the backstop position 15 of backstop movable separation blade 13, when centrifugal impeller 71 forward rotation, make centrifugal impeller 71 presses rivers in the left and right arm of V-arrangement groove 3, movable separation blade 13 is located on the right side of delivery port 4 and will be located on the opposite side of the rotation channel when the opposite direction of V-arrangement groove 3, the opposite direction channel is closed, and the opposite effect is avoided to the opposite to the delivery port 3 when the channel is turned down on the left and the left side of the opposite side of the centrifugal impeller 3 is located on the side of the centrifugal impeller 3.

It will be understood that modifications and variations will be apparent to those skilled in the art from the foregoing description, and it is intended that all such modifications and variations be included within the scope of the following claims.

Claims

1. The single-stage high-lift centrifugal water pump is characterized by comprising a base, wherein the upper surface of the base is provided with a pressurizing groove and a V-shaped groove, both ends of the V-shaped groove are communicated with the pressurizing groove, and the inner side wall of one end of the V-shaped groove, which is far away from the pressurizing groove, is provided with a water outlet; the water pump further comprises an end cover for sealing the pressurizing groove and the V-shaped groove, a water inlet is formed in the end cover, and an impeller mechanism for pressing water flowing in from the water inlet out of the water outlet is arranged in the pressurizing groove.

2. The single stage high lift centrifugal water pump of claim 1 wherein said boost tank is circular and wherein both of said V-shaped tank facing away side walls are tangential to said boost tank inner wall.

3. The single stage high lift centrifugal water pump of claim 2 wherein said water inlet is coaxially disposed with said boost tank.

4. A single stage high lift centrifugal water pump as claimed in claim 3 wherein said impeller means comprises a centrifugal impeller and a shaft for driving said centrifugal impeller in rotation; the centrifugal impeller, the rotating shaft, the water inlet and the pressurizing groove are coaxial.

5. The single-stage high lift centrifugal water pump of claim 4, wherein a mounting groove is provided on the lower surface of the base, and a bottom cover sealing the mounting groove is further provided; the rotating shaft stretches into the mounting groove, and a driving mechanism for driving the rotating shaft to rotate is arranged in the mounting groove.

6. The single-stage high lift centrifugal water pump of claim 5, wherein said drive mechanism comprises rotor magnet steel coaxially fixed on said rotary shaft, a barrel housing sealing said rotor magnet steel and said rotary shaft on the bottom surface of said mounting groove, a stator core disposed opposite to said rotor magnet steel, and a wire frame coil wound on said stator core; the barrel body shell with base integrated into one piece just with the direct intercommunication of pressure boost groove, the both ends of barrel body shell all are equipped with the fixed the bearing of pivot.

7. The single stage high lift centrifugal water pump of claim 4 wherein said base forms a deflector island at a location between the ends of said V-shaped groove and said booster groove.

8. The single-stage high-lift centrifugal water pump according to claim 7, wherein the diversion island is triangular, the smaller end of the diversion island is opposite to the water outlet, a movable baffle is rotatably connected to the smaller end of the diversion island, the rotating shaft of the movable baffle is perpendicular to the flowing direction of water flow, the connection part of the two ends of the V-shaped groove is provided with an arc avoidance position corresponding to the movable baffle, and the water outlet is positioned on the arc avoidance position.

9. The single-stage high lift centrifugal water pump of claim 8, wherein the arc avoidance is provided with stop positions for stopping the movable baffle plates on both the left side and the right side of the water outlet, and when the centrifugal impeller rotates positively, the movable baffle plates are abutted against the stop positions on the right side of the water outlet and close the right end channel of the V-shaped groove; when the centrifugal impeller reversely rotates, the movable baffle plate abuts against a stop position positioned at the left side of the water outlet and closes the left end channel of the V-shaped groove.