CN2826019Y

CN2826019Y - Water drainage pump

Info

Publication number: CN2826019Y
Application number: CN 200520039408
Authority: CN
Inventors: 潘梅军
Original assignee: Shanghai Shugelun Technical & Business Co Ltd
Current assignee: Shanghai Shugelun Technical & Business Co Ltd
Priority date: 2005-02-01
Filing date: 2005-02-01
Publication date: 2006-10-11
Anticipated expiration: 2015-02-01

Abstract

The utility model discloses a drainage pump composed of a motor, an upper pump body, a lower pump body, an impeller and a water baffle ring, wherein the impeller of the utility model comprises a central shaft part, a peripheral wall around the shaft center, a circular disk which is connected with the peripheral wall and is provided with a hollow part, and a plurality of big blades and small blades which are outwards and radially arranged from the shaft center. The big blades are positioned above the circular disk, and both ends of each big blade are respectively connected with the central shaft, the peripheral wall and the circular disk; the small blades are positioned under the circular disk and are connected with the lower ends of the big blades; the small blades downwards extend in a spiral surface shape along the rotary direction and around the shaft center; the lifting effect on water flow is improved by the spiral surface of the small blades; accordingly, the lifting and the flux of a drainage pump is improved, and the water drainage efficiency is improved. The utility model can be suitable for an air conditioner to discharge condensed water.

Description

Draining pump

Technical field

The utility model relates to a kind of draining pump, especially relates to a kind of draining pump that is used on the air conditioner.

Background technique:

Air conditioner is when refrigerating operaton, and airborne moisture content is understood condensation and attached on the heat exchanger, is dropped in then in the water pond that is arranged at the heat exchanger below.For the condensed water that accumulates in this water pond is drained, air conditioner all is equipped with draining pump.The main structure of common use in refrigeration system draining pump as shown in Figure 1, this draining pump is made up of motor 10, water holding ring 20, upper pump casing 30, impeller 40 and lower pump body 50, impeller 40 is located in the pump housing shell that upper pump casing 30 and lower pump body 50 closures form, impeller 40 with pass upper pump casing 30 on through hole motor 10 the axle be connected, and in pump case, rotated freely by the driving of motor 10, water holding ring 20 is located on the motor shaft between motor 10 and the upper pump casing 30 to prevent that water from flowing to into motor 10, the bottom of lower pump body 50 is provided with water intake 60, and the side is provided with water outlet 70.When draining pump is worked, 40 rotations of motor 10 drives impeller, the condensed water that amasss in water pond is inhaled into water intake 60, and since the effect of inertia that impeller 40 drives and in the pump housing on rise, be subjected to centrifugal action from the water outlet 70 of lower pump body 50 sides, to give off the outside at last.

Impeller is the vital part in the draining pump, what Fig. 2 and Fig. 3 represented is the structural drawing of common used impeller, illustrated impeller has center axial region 1 ', it is the obconic disk 2 ' of peripheral wall for hollow portion, periphery that its intermediate section is provided with central authorities, the top of this disk 2 ' is provided with alternate and is the plate shaped big blade 3 ' and the auxiliary blade 5 ' of radial arrangement, and the below of disk 2 ' is provided with the plate shaped small leaf 4 ' that joins with big blade 3 '.Patent of invention ZL96105176.0 and the described draining pump of utility model patent ZL01241835.8 have all adopted the impeller with above-mentioned basic structure, because its all blades all are plate shaped, so this draining pump is when work, current only depend on the blade rotation to stir the inertial force that is produced and upwards promote, therefore lift is restricted, and flow is also not enough.

Summary of the invention:

In order to remedy the deficiency of existing draining pump, the utility model provides a kind of lift higher, the idle call draining pump that flow is bigger.

The technical scheme in the invention for solving the technical problem is:

A kind of draining pump is made up of motor, upper pump casing, lower pump body, impeller and water holding ring, its impeller includes the center axial region, around the peripheral wall in axle center and the disk that has hollow portion that joins with it, several pieces are by outside radial big blade in axle center and small leaf, this big blade is positioned at the top of disk, its two ends are connected with peripheral wall and disk with the center axial region respectively, small leaf is positioned at the below of disk and joins with big blade lower end, described small leaf by big blade lower end edge motor sense of rotation around the planar in the shape of a spiral downward extension in axle center.

The impeller of draining pump described in the utility model also includes several pieces auxiliary blades, and this auxiliary blade is located at equally spacedly on the disk between each big blade and with peripheral wall and is linked to each other; Described big blade and small leaf along branches such as circumference be distributed in impeller middle spindle portion around, they respectively have four, cross section is crosswise and arranges; Described disk is an inverted cone-shaped, and the width of small leaf narrows down downwards gradually from upper end and big blade connecting part; Described impeller can be an one with engineering plastics injection moulding.

Compare with existing draining pump, the utility model is owing to adopted the planar small leaf of spiral that stretches along the motor sense of rotation, so current obtain rising under the effect of rotating the inertial force that is produced at blade, the guiding that also is subjected to the small leaf helicoid simultaneously upwards promotes along this helicoid, therefore increased the effect of rising to current, thereby improved draining lift of pump and flow, improved drainage efficiency.

Description of drawings:

Fig. 1 is the main structure schematic representation of draining pump.

Fig. 2 is the existing draining pump structural drawing of the known impeller of employing usually.

Fig. 3 is the plan view of Fig. 2.

Fig. 4 is the plan view of the impeller of the utility model employing.

Fig. 5 is the plan view of Fig. 4.

Fig. 6 is that the A of Fig. 4 is to view.

Embodiment:

Now with accompanying drawing the utility model is illustrated in conjunction with specific embodiments.

The general structure of draining pump described in the utility model is the same with existing general known draining pump, as shown in Figure 1: described draining pump is made up of motor 10, water holding ring 20, upper pump casing 30, impeller 40 and lower pump body 50, upper pump casing 30 and lower pump body 50 are closed into pump housing shell, impeller 40 is positioned at this pump housing housing and is subjected to the driving of motor 10 and rotates, water holding ring 20 is located between motor 10 and the upper pump casing 30, lower pump body 50 bottoms are water intake 60, and the side is a water outlet 70.

The utility model improvements over the prior art are the vital part impeller.See also the structural drawing of the impeller that Fig. 4, Fig. 5 and Fig. 6 the utility model adopted, illustrated impeller includes center axial region 1, peripheral wall 2, disk 3, big blade 5, small leaf 6 and auxiliary blade 7.Center axial region 1 has the axis hole that can join with motor shaft, and its axle center is the gyration center axis of integral wheel.Be positioned at center axial region 1 intermediate section, be provided with peripheral wall 2 cylindraceous around the axle center of center axial region 1, its lower end is connected with disk 3, this disk 3 is up big and down small inverted cone shape, and the axle center with center axial region 1 is a central axis equally, is provided with hollow portion 4 (see figure 6)s of circular hole in the central.Above disk 3, several pieces flat big blades 5 are outwards radially distributed around impeller middle spindle portion 1 by the axle center along branch ground such as circumference, these big blade 5 one ends are connected with center axial region 1, the other end is connected with disk 3 with peripheral wall 2, and promptly big blade 5 spoke in wheel connects wheel hub and the wheel rim center axial region 1 and peripheral wall 2 and disk 3 are coupled together; This big blade 5 can be 2,3,4 or more, is four in the present embodiment, and it is arranged as cross section and is crosswise.Above-mentioned several pieces auxiliary blades 7 are similarly planar, are located on the disk 3 and with peripheral wall 2 to link to each other, and each auxiliary blade 7 is between each big blade 5 and be equidistant arrangement.Several pieces small leaf 6 are positioned at the below of disk 3, and the hollow portion 4 by disk 3 central authorities joins one by one with big blade 5 lower ends; This small leaf 6 is the shape of face in the shape of a spiral, the lower end of arrogant blade 5 begins to extend expansion along the directional ring of motor rotation downwards around the axle center, its spatial form is similar to twist drill to a certain extent, in other words, its shape is on the basis of known impeller shown in Figure 2, and the motionless and lower end edge motor sense of rotation in the upper end of small leaf 4 ' is reversed several angle and formed; The width of the upper end that this small leaf 6 and big blade 5 join narrows down downwards subsequently gradually for maximum, and the expansion shape of its helicoid is actual to be one up big and down small trapezoidal; The quantity of small leaf 6 is identical with big blade 5, and along branches such as circumference be distributed in the impeller axle center around, this small leaf 6 can be 2,3,4 or more in addition, in the present embodiment is four, its arrangement is similarly cross section and is crosswise.For the ease of producing in batches, impeller of the present utility model can be by opening the system injection mould, utilizes engineering plastics injection moulding and become one.

When draining pump described in the utility model is worked, the rotation of driven by motor impeller, the air conditioner condensate water that enters the draining pump water intake is upwards risen by the effect of small leaf 6 stirring generation inertial force on the one hand, also be subjected to the guiding of small leaf 6 helicoids on the other hand, " copied shovel " and risen, upwards promoted, then along the inwall of disks 3 and peripheral wall 2 upwards by hollow portion 4 along helicoid, be subjected to the rotating centrifugal effect of big blade 5 and auxiliary blade 7 at last, be discharged from by water outlet.

Above-mentioned small leaf 6 with helicoid shape and structure is in draining pump working procedure described in the utility model, and having played increases the effect of current that rises, thereby has improved draining lift of pump and flow, that is has improved drainage efficiency.

Claims

1, a kind of draining pump, it is made up of motor, upper pump casing, lower pump body, impeller and water holding ring, its impeller includes the center axial region, around the peripheral wall in axle center and the disk that has hollow portion that joins with it, several pieces are by outside radial big blade in axle center and small leaf, this big blade is positioned at the top of disk, its two ends are connected with peripheral wall and disk with the center axial region respectively, small leaf is positioned at the below of disk and joins with big blade lower end, it is characterized in that: small leaf by big blade lower end edge motor sense of rotation around the planar in the shape of a spiral downward extension in axle center.

2, draining pump according to claim 1 is characterized in that: described impeller also includes several pieces auxiliary blades, and this auxiliary blade is located at equally spacedly on the disk between each big blade and with peripheral wall and is linked to each other.

3, draining pump according to claim 1 is characterized in that: described big blade and small leaf along branches such as circumference be distributed in impeller middle spindle portion around.

4, draining pump according to claim 3 is characterized in that: described big blade and small leaf are respectively four, and cross section is crosswise and arranges.

5, according to claim 1,2,3 or 4 described draining pumps, it is characterized in that: described disk is an inverted cone-shaped.

6, according to claim 1,2,3 or 4 described draining pumps, it is characterized in that: the width of described small leaf narrows down downwards gradually from upper end and big blade connecting part.

7, draining pump according to claim 1 is characterized in that: described impeller is an one with engineering plastics injection moulding.