CN209261904U - A kind of open water pump using assembled impeller inducer and the equipment using the water pump - Google Patents

Abstract

The utility model provides a kind of open water pump using assembled impeller inducer and the equipment using the water pump, the water pump includes the pump housing containing motor, the impeller inducer being driven by motor is fixed on shaft front end, impeller inducer is formed by the first component and second component axial direction continued access, the first component includes upper central siphon and circumferentially fixed first group of blade in upper central siphon outer wall, second component includes lower central siphon, circumferentially fixed second group of blade and guide shell in lower axle pipe outer wall, upper central siphon and lower central siphon are linked to be the wheel shaft of impeller inducer along axial continued access, first group of blade and second group of blade cover in guide shell jointly around the lower part that wheel shaft staggers successively arrangement and blade, there is the axial spacing suitable for water inlet between guide shell bottom and rotor chamber drive end bearing bracket, open space where liquid from axial spacing under impeller inducer turning effort, which enters, leads Flow cartridge cylinder lumen is simultaneously thrown away above guide shell cylinder.The utility model component is easily manufactured, structural stability is good, assembled convenience.

Description

A kind of open water pump using assembled impeller inducer and the equipment using the water pump

Technical field

The utility model relates to pump technical field more particularly to the blade wheel structures of water pump.

Background technique

To enable water pump installation convenience, impeller to absorb water compared with low water level, this mesh can be realized using open water pump 's.Open water pump is chiefly used in dish-washing machine, drives gushing arm rotation by water flow, sprays water flow punching by spray orifice during rotation Wash up.Chinese utility model such as Publication No. CN104235061A, utility model entitled " a kind of open water pump " is special Benefit application disclose open water pump with flowering structure: water pump includes lower case, the pump housing containing motor and is driven by motor Impeller.Water inlet is located at the lower section and side of lower case, and lower case has the lower accommodating cavity of vacant blade lower section, impeller lower section It is uniformly distributed multiple axial--flow bladings axially extended.Impeller is engaged by axis with motor.Under motor driven, impeller is in sky Fluid is lifted in the rotation of chamber high speed, axial--flow blading part, and pump is worked normally.

Notification number is CN207513917U, utility model it is entitled " a kind of open water pump for improving blade wheel structure and Use the equipment of the open water pump " Chinese utility model patent disclose a kind of blade wheel structure of water pump, have and one lead Impeller is flowed, impeller inducer includes wheel shaft, multiple vanes and guide shell.The water pump fit on is needed to the pump housing, rotor chamber front end Lid and impeller inducer three carry out assembly connection, and accuracy is higher, have the water inlet advantage that area is big, water resistance is small and ensure that pump High-efficiency operation.But it constituteing an inconvenience in that, impeller is made of Multi-piece compounded blade, and the mould structure for making impeller is complicated, Required precision is high, and demoulding processing is difficult, also needs to carry out secondary operation by modes such as welding after impeller forming.

Utility model content

The purpose of this utility model is to provide it is a kind of be simple to manufacture, the impeller of open water pump easy to assembly.

In order to achieve the goal above, the utility model uses following technical scheme:

A kind of open water pump using assembled impeller inducer, including the pump housing containing motor, the rotor chamber of the pump housing by One rotor chamber drive end bearing bracket is covered, and rotor chamber drive end bearing bracket offers the axis stretched out for shaft and stretches hole, the water conservancy diversion leaf being driven by motor Wheel is fixed on shaft front end, and the impeller inducer is formed by the first component and second component axial direction continued access, and the first component includes position Upper central siphon and circumferentially fixed first group of blade in upper central siphon outer wall in center, second component includes centrally located lower axle Pipe, circumferentially fixed second group of blade and guide shell in lower axle pipe outer wall, upper central siphon and lower central siphon are linked to be water conservancy diversion along axial continued access The wheel shaft of impeller, first group of blade and second group of blade cover at water conservancy diversion around the lower part that wheel shaft staggers successively arrangement and blade jointly There is the axial spacing suitable for water inlet, under impeller inducer turning effort in cylinder, between guide shell bottom and rotor chamber drive end bearing bracket Open space where liquid from the axial spacing enters guide shell cylinder lumen and throws away above guide shell cylinder.

The blade is multiple vanes, and each multiple vanes top is centrifugal step, and lower part is axis stream section, guide shell tool There is the cylinder for covering at the upper and lower opening outside axis stream section, blade centrifugal step is protruding from cylinder upper opening.

It extends outside to form a circle drip ring at the top of guide shell cylinder, the outer diameter of drip ring is more than or equal to blade centrifugal step Maximum outside diameter.

It extends outside to form the current deflecting ring of curved form at the top of the upper central siphon of impeller inducer.

The contact surface of the lower end of upper central siphon and the upper end of lower central siphon be equipped with for radial positioning it is several be mutually paired it is recessed Slot or convex block.

The inner tubal wall of upper central siphon and lower central siphon is equipped with several grooves or convex block being mutually paired for axially position.

The ratio between height and multiple vanes axis stream section height of guide shell cylinder are 0.5~1.5.

What the utility model additionally provided a kind of open water pump using assembled impeller inducer uses pumping unit.

The utility model improves impeller inducer used in open water pump, i.e., by the first component and second Part is assembled into impeller inducer, and the first component and second component are respectively provided with shaft and blade, and each component all has in structure Central shaft tube connects the stable symmetrical structure of blade, can guarantee stress balance when work, and each component individually demoulds to be had again There are enough spaces, stripping operation is convenient；It only needs not needing the first component and second component contraposition assembly when use Welding assembles also very convenient.Improved product, component is easily manufactured, structural stability is good, assembled convenience, improves life Produce efficiency and product quality.

Detailed description of the invention

Fig. 1 is the overall structure diagram of the impeller inducer of the utility model.

Fig. 2 is the A of Fig. 1 to diagrammatic cross-section.

Fig. 3 is the overall structure diagram of the first component.

Fig. 4 is the overall structure diagram of second component.

Fig. 5 is the diagrammatic cross-section after the utility model is connect with dishwasher chamber.

Fig. 6 is the assembly perspective view of the explosion of the utility model.

The wherein title of numerals:

The pump housing 1, rotor chamber drive end bearing bracket 2, impeller inducer 3, the first component 3.1, upper central siphon radial detents 3.11, upper central siphon Axially position groove 3.12,3.13, first groups of blades 3.14 of upper central siphon, guide ring 3.15, second component 3.2, lower axle caliber to Positioning convex platform 3.21, lower central siphon axially position boss 3.22, lower central siphon 3.23, second groups of blades 3.24, guide shells 3.25, water blocking Ring 3.26, shaft 4, bottom plate 5, spray arm 6

Specific embodiment

It should be understood that upper and lower, left and right in this specification, directional terms are to be directed to upwards, downwards, to the left, to the right The description in orientation shown in the drawings, these orientation are not restrictive.If without certain illustrated, term herein to Interior, outside, inside and outside, inside, outside refer to the range relative to part centre, such as using electrical axis as reference, interior and interior Side refers to closer to or is directed toward position or the orientation of electrical axis, and outer and outside refers to further from motor center position.In addition, term It is horizontal, the terms such as hold up, dangle and be not offered as requiring component abswolute level or pendency, and permission can be slightly tilted.Such as level It simply means to more horizontal for its direction opposed vertical, is not to indicate that the structure will fully horizontally, but can be slightly tilted.

The utility model open water pump claimed includes the pump housing 1 containing motor, and the rotor chamber of the pump housing 1 is by turning Sub- chamber drive end bearing bracket 2 is covered, and rotor chamber drive end bearing bracket offers the axis stretched out for shaft and stretches hole, and shaft 4 is stretched in hole from axis stretches out, and leads Stream impeller is fixed on the front end of shaft 4 and is rotated by the driving of motor.

As shown in Fig. 1~2, impeller inducer 3 is formed by the first component 3.1 and the axial continued access of second component 3.2, such as Fig. 3 institute Show, the first component 3.1 includes centrally located upper central siphon 3.13 and circumferentially fixed first group of blade in upper central siphon outer wall 3.14.Second component include centrally located lower central siphon 3.23, circumferentially fixed second group of blade 3.24 in lower axle pipe outer wall and Guide shell 3.25, integrated injection molding forms.The upper central siphon of the first component and the lower central siphon of second component are linked to be water conservancy diversion along axial continued access The wheel shaft of impeller, first group of blade 3.14 and second group of blade 3.24 stagger successively arrangement around wheel shaft.In each multiple vanes Portion is centrifugal step, and lower part is axis stream section, the blade of axis stream section along impeller direction of rotation smooth curved, centrifugal step blade then with wheel The periphery of axis is substantially parallel, smoothly transits between centrifugal step and axis stream section.Axis stream section position is longer, height and centrifugal step height Degree helps impeller and draws water compared with low water level than preferably 1~5.After water flow has been lifted, the biggish radial dimension of centrifugal step makes Water flow passage is gradually broadening, helps reduction flow velocity.The radial dimension of centrifugal step and axis stream section is preferably 1~5.Guide shell, which has, to be provide with The cylinder of upper and lower opening outside axis stream section, blade centrifugal step is protruding from cylinder upper opening, guide shell bottom with turn There is the axial spacing suitable for water inlet, liquid under impeller inducer turning effort is from the axial spacing institute between sub- chamber drive end bearing bracket Open space enter guide shell cylinder lumen and thrown away above guide shell cylinder.

The ratio between height and multiple vanes axis stream section height of guide shell cylinder are 0.5~1.5.At the top of guide shell cylinder to Periphery extends to form a circle drip ring 3.26, and the outer diameter of drip ring is more than or equal to the maximum outside diameter of blade centrifugal step.Drip ring energy Stop the water being located in turbine centrifugal section axially to flow back, avoid revealing, improves pump working efficiency.At the top of upper central siphon outward Extend to form the current deflecting ring 3.15 of curved form week.When water flow is rotated by bottom with impeller by top movements, water flow is from again Histogram at the top of wheel shaft by guide ring influenced and become laterally throw away.

The contact surface of the lower end of upper central siphon and the upper end of lower central siphon be equipped with for radial positioning it is several be mutually paired it is recessed Slot or convex block, while being additionally provided with several grooves or convex block being mutually paired for axially position.In this example, upper central siphon lower end Upper central siphon radial detents 3.11 and upper central siphon axially position groove 3.12 is arranged in face, correspondingly, being arranged in lower central siphon upper surface Lower axle caliber is to positioning convex platform 3.21, lower central siphon axially position boss 3.22.

Rotor is sealed in pump housing rotor chamber by rotor chamber drive end bearing bracket 2, may between rotor chamber drive end bearing bracket and the pump housing By directly or indirectly mode, mechanical connections means are assembled etc. with screw or button bit and are formed a fixed connection relationship.This is practical new The open water pump of type is used in the similar watering equipment such as dish-washing machine, beet washer, need to only open one with the bottom plate of pumping unit Mounting hole, that is, mountable open water pump.Screw hole, button bit are set on the pump housing, by equipment bay together with pump housing cage connection. After equipment cleaning chamber fills water, using bottom plate 5 as separating, the components such as impeller on bottom plate are in water.And the peace under bottom plate Pump body portion and water equipped with motor completely cut off.When motor operates, impeller inducer rotation drives water from the opening below impeller inducer Space enters water conservancy diversion tube inner chamber, throws away spray arm from impeller inducer top, then spray from relief hole.

The utility model includes but is not limited to above-described embodiment and content shown in the drawings, and other all are practical new with this There is the technical solution of type the product structure of identical essentiality content to each fall within the protection scope of the utility model.

Claims (8)

1. a kind of open water pump using assembled impeller inducer, including the pump housing containing motor, the rotor chamber of the pump housing is by one Rotor chamber drive end bearing bracket is covered, and rotor chamber drive end bearing bracket offers the axis stretched out for shaft and stretches hole, the impeller inducer being driven by motor It is fixed on shaft front end, it is characterised in that: the impeller inducer is formed by the first component and second component axial direction continued access, and first Part includes centrally located upper central siphon and circumferentially fixed first group of blade in upper central siphon outer wall, and second component includes being located at center Lower central siphon, circumferentially fixed second group of blade and guide shell in lower axle pipe outer wall, upper central siphon and lower central siphon connect along axial continued access At the wheel shaft of impeller inducer, first group of blade and second group of blade are provide with jointly around the lower part that wheel shaft staggers successively arrangement and blade In having the axial spacing suitable for water inlet in guide shell, between guide shell bottom and rotor chamber drive end bearing bracket, impeller inducer rotation is made The open space where liquid from the axial spacing under enters guide shell cylinder lumen and gets rid of above guide shell cylinder Out.

2. the open water pump according to claim 1 using assembled impeller inducer, it is characterised in that: the blade is Multiple vanes, each multiple vanes top are centrifugal step, and lower part is axis stream section, and guide shell, which has, to be covered at outside axis stream section Upper and lower opening cylinder, blade centrifugal step is protruding from cylinder upper opening.

3. the open water pump according to claim 2 using assembled impeller inducer, it is characterised in that: guide shell cylinder Top extends outside to form a circle drip ring, and the outer diameter of drip ring is more than or equal to the maximum outside diameter of blade centrifugal step.

4. the open water pump according to claim 1 using assembled impeller inducer, it is characterised in that: impeller inducer It extends outside to form the current deflecting ring of curved form at the top of upper central siphon.

5. the open water pump according to claim 1 using assembled impeller inducer, it is characterised in that: under upper central siphon The contact surface of end and the upper end of lower central siphon is equipped with several grooves or convex block being mutually paired for radial positioning.

6. the open water pump according to claim 1 using assembled impeller inducer, it is characterised in that: upper central siphon is under The inner tubal wall of central siphon is equipped with several grooves or convex block being mutually paired for axially position.

7. the open water pump according to claim 1 using assembled impeller inducer, it is characterised in that: guide shell cylinder Height and the ratio between multiple vanes axis stream section height be 0.5~1.5.

8. a kind of use pumping unit using any open water pump using assembled impeller inducer of claim 1~7.