CN204939892U - Rotary drum washing machine - Google Patents

Abstract

The utility model discloses a kind of rotary drum washing machine, comprise impeller and interior bucket, impeller is established rotationally within the inner barrel and is jointly limited scrubbing space with interior bucket, impeller comprises: wheel disc, central boss and multiple lifting rib, central boss is located at the side of the contiguous scrubbing space of wheel disc, multiple lifting rib is spaced apart distribution in the circumference of central boss, radial direction on the side that at least part of lifting rib is located at wheel disc and towards wheel disc extends, in the rotation direction of impeller, each lifting rib includes and rotates upstream face and rotate back side, lifting rib is formed with at least one for the water of wheel disc opposite side being passed into the hole for water spraying in scrubbing space.According to rotary drum washing machine of the present utility model, can effectively overturn clothing, prevent clothing to be wound around fold, clean result is strong.

Description

Rotary drum washing machine

Technical field

The utility model relates to washing machine technology field, especially relates to a kind of rotary drum washing machine.

Background technology

Point out in correlation technique, rotary drum washing machine is rotated by the impeller in interior bucket, realize the cleaning to clothing, but, rotary drum washing machine is in the process of washing clothes, frequent generation clothing winding, fold, do not wash clean, the problem such as current are unable, thus affect clean result, be difficult to the laundry demand meeting user.

Utility model content

The utility model is intended at least to solve one of technical problem existed in prior art.For this reason, the utility model is to propose a kind of rotary drum washing machine, and the clean result of described rotary drum washing machine is good.

According to rotary drum washing machine of the present utility model, comprise impeller and interior bucket, described impeller to be located at rotationally in described interior bucket and jointly to limit scrubbing space with described interior bucket, and described impeller comprises: wheel disc; Central boss, described central boss is located at the side of the described scrubbing space of vicinity of described wheel disc; And multiple lifting ribs of spaced apart distribution in the circumference of described central boss, radial direction on the described side that at least part of described lifting rib is located at described wheel disc and towards described wheel disc extends, in the rotation direction of described impeller, each described lifting rib includes and rotates upstream face and rotate back side, described lifting rib is formed with at least one for the water of described wheel disc opposite side being passed into the hole for water spraying in described scrubbing space.

According to rotary drum washing machine of the present utility model, can effectively overturn clothing, prevent clothing to be wound around fold, clean result is strong.

In certain embodiments, each described lifting rib is formed with further at least one for the water in described scrubbing space being passed into the backwater hole of the described opposite side of described wheel disc.

In certain embodiments, the described opposite side of described wheel disc is provided with the ring baffle of two arranged concentric, at described wheel disc in the radial direction, described backwater hole is between two described ring baffles, and described hole for water spraying is arranged at least side of the both sides away from each other of two described ring baffles.

In certain embodiments, described hole for water spraying is formed on the sidewall of described rotation upstream face of described lifting rib.

In certain embodiments, described backwater hole is formed on the roof of described rotation upstream face of described lifting rib.

In certain embodiments, described impeller comprises further: impeller, and described impeller to be located on described wheel disc and to be configured to make water spray from described hole for water spraying in the process of rotating at described wheel disc.

Particularly, described impeller comprises multiple multiple blades be fixed on the described opposite side of described wheel disc, and multiple described blade is spaced apart distribution in the circumference of described wheel disc, and each described blade all extends along the radial direction of described wheel disc.

In certain embodiments, the described rotation upstream face in each described lifting rib and at least one in described rotation back side extend along serpentine curve in the radial direction of described wheel disc.

In certain embodiments, the described rotation upstream face of each described lifting rib all extends along serpentine curve in the radial direction of described wheel disc, described rotation upstream face is included in inside and outside connected inner segment face and outer section of face in described wheel disc radial direction, described inner segment protrudes facing to the updrift side in described impeller direction of rotation, and described outer section protrudes facing to the downstream direction in described impeller direction of rotation.

In certain embodiments, the described rotation upstream face of each described lifting rib and described rotation back side are all formed as from up to down and the inclined-plane tilting to extend towards direction away from each other, and the angle between described rotation upstream face and described wheel disc is less than the angle between described rotation back side and described wheel disc.

Additional aspect of the present utility model and advantage will part provide in the following description, and part will become obvious from the following description, or be recognized by practice of the present utility model.

Accompanying drawing explanation

Fig. 1 is the stereogram of the impeller according to the utility model embodiment;

Fig. 2 is the front view of the impeller shown in Fig. 1;

Fig. 3 is the upward view of the impeller shown in Fig. 2;

Fig. 4 is the rearview of the impeller shown in Fig. 2.

Reference numeral:

100: impeller;

1: wheel disc; 11: limbers;

2: central boss; 21: convex tendon;

3: lifting rib; 31: rotate upstream face; 311: inner segment face; 312: outer section face;

313: hole for water spraying; 314: backwater hole;

32: rotate back side; 321: medial surface; 322: lateral surface; 33: roof;

41: interior ring baffle; 42: outer ring baffle plate; 5: between annulus;

6: protruding; 7: blade.

Detailed description of the invention

Be described below in detail embodiment of the present utility model, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the utility model, and can not be interpreted as restriction of the present utility model.

Disclosing hereafter provides many different embodiments or example is used for realizing different structure of the present utility model.Of the present utility model open in order to simplify, hereinafter the parts of specific examples and setting are described.Certainly, they are only example, and object does not lie in restriction the utility model.In addition, the utility model can in different example repeat reference numerals and/or letter.This repetition is to simplify and clearly object, itself does not indicate the relation between discussed various embodiment and/or setting.In addition, the various specific technique that the utility model provides and the example of material, but those of ordinary skill in the art can recognize the property of can be applicable to of other techniques and/or the use of other materials.

Below with reference to the accompanying drawings rotary drum washing machine according to the utility model embodiment is described.

As shown in Figure 1, according to the rotary drum washing machine (scheming not shown) of the utility model embodiment, comprise: impeller 100 (scheming not shown) and interior bucket (scheming not shown), impeller 100 is established rotationally within the inner barrel and jointly limited scrubbing space with interior bucket.Such as, when rotary drum washing machine is upright type washing machine, impeller 100 can install bottom within the inner barrel, bottom outside interior bucket can be provided with motor (scheming not shown), the driving shaft of motor (scheming not shown) can be upward through the diapire of interior bucket and be connected to drive impeller 100 to rotate in portion within the inner barrel with impeller 100, the space be positioned at above impeller 100 in interior bucket can be understood as scrubbing space, and clothing etc. are suitable for being placed on washing in scrubbing space.

Certainly, the utility model is not limited thereto, and rotary drum washing machine can also be horizontal washing machine, is only described for upright type washing machine below, after the technical scheme of those skilled in the art below having read, be obviously appreciated that rotary drum washing machine is the technical scheme of horizontal washing machine.In addition, according to the rotary drum washing machine of the utility model embodiment other form and operation be all known for those of ordinary skills, be not described in detail here.

Particularly, with reference to Fig. 1, impeller 100 comprises: wheel disc 1, central boss 2 and multiple lifting rib 3, wherein, wheel disc 1 can be formed as disc substantially, central boss 2 is located at the side (on the upper surface of the wheel disc 1 such as shown in Fig. 1) of the contiguous scrubbing space of wheel disc 1, at least part of lifting rib 3 is located at the side (on the upper surface of the wheel disc 1 such as shown in Fig. 1) of the contiguous scrubbing space of wheel disc 1 and the radial direction towards wheel disc 1 extends, such as lifting rib 3 can in the radial direction of wheel disc 1 linearly or curve extend, multiple lifting rib 3 is spaced apart distribution in the circumference of central boss 2.

Further, with reference to Fig. 1, one or more lifting rib 3 is formed with at least one for the water of wheel disc 1 opposite side being passed into the hole for water spraying 313 in scrubbing space.Preferably, each lifting rib 3 can be formed with one or more hole for water spraying 313, each hole for water spraying 313 is all for being passed into scrubbing space in away from the water of scrubbing space side by hole for water spraying 313 by wheel disc 1, such as in the example of fig. 1, each hole for water spraying 313 is all for leading to the water below wheel disc 1 above wheel disc 1.Thus, hole for water spraying 313 can manufacture strong current, overturns in the process of clothing at lifting rib 3, and clothing can overturn, flattens by service hoisting muscle 3 by hole for water spraying 313, and cleaner by laundry rinse, thus improve cleaning performance.

According to the rotary drum washing machine of the utility model embodiment, due to the lifting rib 3 of impeller 100 being formed with hole for water spraying 313, thus strong impact cleaning can be carried out to clothing, promote and clean ratio, and hole for water spraying 313 can overturn, flattens clothing by service hoisting muscle 3, thus improve the buckling problems of clothing.

Further, with reference to Fig. 1, in the rotation direction of impeller 100, each lifting rib 3 includes and rotates upstream face 31 and rotate back side 32.Preferably, hole for water spraying 313 is formed on the sidewall of rotation upstream face 31 of lifting rib 3, and that is, hole for water spraying 313 can pass in the horizontal direction and rotate upstream face 31.Thus, overturn in the process of clothing at rotation upstream face 31, the current sprayed from hole for water spraying 313 more effectively can impact clothing, thus improve the effect of upset, flattening, clean clothing.Preferably, each hole for water spraying 313 is different from the angle between horizontal plane, thus, can rinse clothing in the larger context, makes clothing can obtain more omnibearing upset, flushing.

In an embodiment of the present utility model, each lifting rib 3 is formed with further at least one for the water in scrubbing space being passed into the backwater hole 314 of the opposite side of wheel disc 1.That is, each lifting rib 3 can be formed with one or more backwater hole 314, each backwater hole 314 is all for being passed into the opposite side of wheel disc 1 by backwater hole 314 by the water of contiguous for wheel disc 1 scrubbing space side, such as in the example of fig. 1, each backwater hole 314 is all for leading to the below of wheel disc 1 by the water above wheel disc 1.

Thus, backwater hole 314 coordinates the current smooth circulation that can realize wheel disc 1 upper and lower sides with hole for water spraying 313, thus guarantees that hole for water spraying 313 has enough current ejections all the time.In addition, by backwater hole 314 is processed on lifting rib 3, can guarantee that clothing still can near lifting rib 3 after being subject to the water slug that hole for water spraying 313 sprays, thus ensure that lifting rib 3 reliably, effectively can realize overturning, flattens, wash the functions such as clothing by rubbing with the hands.

Alternatively, backwater hole 314 is formed on the roof of rotation upstream face 31 of lifting rib 3, and that is, backwater hole 314 vertically can pass and rotate upstream face 31.Thus, overturn in the process of clothing at rotation upstream face 31, the water in scrubbing space can under the effect of gravity and clothing beating power etc., directly under reflux downwards from backwater hole 314, thus guarantee that current can more reliably, efficiently reflux.

In a specific embodiment of the present utility model, the all spaced apart distributions on the length direction of corresponding lifting rib 3 of multiple hole for water spraying 313 and multiple backwater hole 314, and in the radial direction of wheel disc 1, multiple hole for water spraying 313 lays respectively at the both sides of multiple backwater hole 314, such as in the example of fig. 1 and 2, multiple hole for water spraying 313 is respectively adjacent to the center of wheel disc 1 and the edge setting of wheel disc 1.Thus, effectively can rinse clothing on the whole length direction of lifting rib 3, specifically, impeller 100 is in the process of rotating, hole for water spraying 313 and backwater hole 314 can coordinate with lifting rib 3, current tendency better, play the effects such as better assisting overturn, flattening, flushing.

In a concrete example of the present utility model, with reference to Fig. 4, on the opposite side of wheel disc 1, (on the lower surface of the wheel disc 1 such as shown in Fig. 1) is provided with the ring baffle (the interior ring baffle 41 such as shown in Fig. 4 and outer ring baffle plate 42) of two arranged concentric, at wheel disc 1 in the radial direction, backwater hole 314 is (between the annulus such as shown in Fig. 4 5) between two ring baffles, hole for water spraying 313 is arranged at least side of the both sides away from each other of two ring baffles, such as in the example of fig. 4, some hole for water sprayings 313b can be positioned at the side in the outside (namely away from ring baffle 41) of outer ring baffle plate 42, other hole for water sprayings 313a can be positioned at the side of the inner side (namely away from outer ring baffle plate 42) of ring baffle 41.Thus, by arranging two ring baffles, can guarantee that the water (flow) direction of the backwater hole 314 between two ring baffles is identical, the water (flow) direction being positioned at the backwater hole 314 of ring baffle both sides and hole for water spraying 313a (or 313b) is contrary.

In an embodiment of the present utility model, impeller 100 can comprise further: impeller, and impeller to be located on wheel disc 1 and to be configured in the process of rotating at wheel disc 1, water be sprayed from hole for water spraying 313.Thus, the spraying function of hole for water spraying 313 can be realized.Such as in the example of Fig. 1, Fig. 3 and Fig. 4, impeller comprises multiple multiple blades 7 be fixed on the opposite side (on the lower surface of the wheel disc 1 such as shown in Fig. 1) of wheel disc 1, multiple blade 7 is spaced apart distribution in the circumference of wheel disc 1, each blade 7 all extends along the radial direction of wheel disc 1, alternatively, multiple blade 7 can be close to the edge setting of wheel disc 1.Thus, under the rotarily driving of impeller 100, blade 7 can manufacture swirling water current, thus water can spray from hole for water spraying 313b by pressure, makes clothing obtain more strong flushing.In addition, the convenient processing of impeller of this kind of structure, and good working effect.

In addition, the interior diapire of interior bucket can be arranged and interior ring baffle 41 annular engagement opposing upper and lower muscle (scheming not shown), when impeller 100 is installed within the inner barrel, annular engagement muscle can abut with interior ring baffle about 41, jointly to limit the cylindrical space (this space can be communicated with other spaces below wheel disc 1) substantially closed, hole for water spraying 313a is communicated with this space, under the effect of the pressure in the space that this is closed substantially, the water of this interior volume upwards can spray from hole for water spraying 313a.Certainly, the utility model is not limited thereto, and the mode realizing hole for water spraying 313 spraying function also has a lot, repeats no longer one by one here.

In a preferred embodiment of the present utility model, wheel disc 1 can also on be formed with multiple limbers 11 run through, such as in the example of fig. 4, limbers 11 can be formed between annulus in 5, and identical with the water (flow) direction of backwater hole 314.Thus, when impeller 100 not having backwater hole 314, the water at wheel disc 1 top can reflux downwards by means of only limbers 11, when impeller 100 has backwater hole 314, the water at wheel disc 1 top can be refluxed downwards by limbers 11 and backwater hole 314, thus limbers 11 coordinates the current smooth circulation that can realize wheel disc 1 upper and lower sides with hole for water spraying 313, guarantee that hole for water spraying 313 has enough current ejections all the time, improve cleaning performance.Such as in the example of fig. 4, multiple limbers 11 can be formed and be arranged into two circles and be interrupted annular with one heart, thus multiple limbers 11 can be evenly spaced apart distribution in the radial direction of wheel disc 1 He in circumference, thus the logical uniformity of current can be improved, improve the reliability that current are logical.

In an embodiment of the present utility model, rotation upstream face 31 in each lifting rib 3 and at least one rotation in back side 32 extend along serpentine curve in the radial direction of wheel disc 1, preferably, rotate upstream face 31 and rotate back side 32 and all extend along serpentine curve in the radial direction of wheel disc 1.Thus, rotate upstream face 31 and can play the function effectively overturning clothing, improve cleaning effect, rotation back side 32 can play the function flattening clothing and prevent clothing to be wound around fold, care clothing.Specifically, fourier function and bionics principle can be adopted to design, calculate the concrete structure parameter of lifting rib 3, more effectively can overturn to make lifting rib 3, pat clothing, improve and clean effect, and make clothing submissive, silk can cross lifting rib 3, in order to avoid problems such as clothing generation fold, windings slidingly.

In a concrete example of the present utility model, with reference to Fig. 2, the rotation upstream face 31 of each lifting rib 3 is all formed as serpentine.Thus, the shape of lifting rib 3 is convenient to processing, and upset clothing is effective.Such as, the rotation upstream face 31 of each lifting rib 3 is included in the upper inside and outside connected inner segment face 311 of wheel disc 1 radial direction and outer section of face 312, inner segment face 311 is protruded towards the updrift side in impeller 100 direction of rotation, that is, inner segment face 311 is protruded towards the direction of the rotation back side 32 of the lifting rib 3 belonging to it, outer section of face 312 is protruded towards the downstream direction in impeller 100 direction of rotation, and that is, outer section of face 312 is protruded towards the direction of the rotation back side 32 of the lifting rib 3 belonging to it.Thus, the lifting rib 3 of this kind of shape can coordinate with current tendency better, plays clean result better.Here, it should be noted that, " interior " can be understood as the direction of adjacent central boss 2 central axis, and its opposite direction is defined as " outward ", i.e. the direction at contiguous wheel disc 1 edge.

Further, with reference to Fig. 2, the rotation back side 32 of each lifting rib 3 also all can be formed as serpentine.Thus, the shape of lifting rib 3 is convenient to processing, and can flatten clothing better, prevents fold.Such as, the rotation back side 32 of each lifting rib 3 is included in the upper inside and outside connected medial surface 321 of wheel disc 1 radial direction and lateral surface 322, medial surface 321 protrudes towards the updrift side in impeller 100 direction of rotation, that is, medial surface 321 protrudes towards the direction of the rotation upstream face 31 of the lifting rib 3 belonging to it, lateral surface 322 protrudes towards the downstream direction in impeller 100 direction of rotation, and that is, lateral surface 322 protrudes towards the direction of the rotation upstream face 31 of the lifting rib 3 belonging to it.Thus, the lifting rib 3 of this kind of shape can coordinate with current tendency better, plays and goes effect of wrinkling better.Here, it should be noted that, " interior " can be understood as the direction of adjacent central boss 2 central axis, and its opposite direction is defined as " outward ", i.e. the direction at contiguous wheel disc 1 edge.

Certainly, the utility model is not limited thereto, lifting rib 3 can also extend along the curve of other shapes, and when lifting rib 3 extends along serpentine, the bearing of trend of lifting rib 3 can also be contrary with bearing of trend mentioned above, such as inner segment face 311 and medial surface 321 can be protruded towards the downstream in impeller 100 direction of rotation respectively, and outer section of face 312 and lateral surface 322 can protrude towards the upstream side in impeller 100 direction of rotation respectively.

In an embodiment of the present utility model, with reference to Fig. 3, the rotation upstream face 31 of each lifting rib 3 and rotation back side 32 are formed as from up to down and the inclined-plane tilting to extend towards direction away from each other, the angle rotated between upstream face 31 and wheel disc 1 is less than the angle rotated between back side 32 and wheel disc 1, that is, rotating upstream face 31 can be from up to down, tilt to extend towards the upstream side in impeller 100 direction of rotation, rotating back side 32 can be from up to down, tilt to extend towards the downstream in impeller 100 direction of rotation, wherein, the extension inclination angle rotating upstream face 31 is less than the extension inclination angle rotating back side 32, in other words, the bevel angle rotating upstream face 31 is more slow, the bevel angle rotating back side 32 is steeper.Thus, rotating upstream face 31 can overturn clothing better, and rotating back side 32 can flatten clothing better.

In a concrete example of the present utility model, with reference to Fig. 1 and Fig. 3 along wheel disc 1 radial direction from inside to outside, epirelief again after the roof 33 of each lifting rib 3 is all first recessed.Thus, the lifting effect of lifting rib 3 can be improved further, clothing can be cleaned more up hill and dale.Certainly, the utility model is not limited thereto, and the roof 33 of lifting rib 3 can also be configured to other shapes, the plane such as tilted.

In an embodiment of the present utility model, with reference to Fig. 1, the sidewall of central boss 2 has the convex tendon 21 of multiple spaced apart distribution in the circumference of central boss 2.Thus, convex tendon 21 makes central boss 2 have rubbing function, improves cleaning performance further.Such as in the example of fig. 1, the top of central boss 2 can be formed as plane, and multiple convex tendon 21 can be evenly spaced apart distribution in the circumference of central boss 2, and the upper end of each convex tendon 21 can be concordant with the upper end of central boss 2.

Further, as shown in Figure 1, multiple convex tendon 21 is connected with multiple lifting rib 3 one_to_one corresponding.Thus, the structure of impeller 100 is comparatively simple, is convenient to processing, and can improves the structural strength of lifting rib 3, improve the reliability of upset clothing.Alternatively, central boss 2, convex tendon 21, the machine-shaping of lifting rib 3 one.Thus, by arranging central boss 2 and convex tendon 21, more effectively can carry out cleaning to the clothing being gathered in centre and washing by rubbing with the hands.

In an embodiment of the present utility model, wheel disc 1 is provided with multiple protruding 6.Such as in the example of fig. 1, protruding 6 can be protruding upward by the upper surface of wheel disc 1, and thus, protruding 6 can wash by rubbing with the hands angular position of waiting for death, the corner of clothing effectively, thus make the more clean of clothes washing, improve cleaning performance.Alternatively, between two adjacent lifting ribs 3, be equipped with at least one projection 6, and protruding 6 outers that can be close to wheel disc 1 are arranged.Thus, can more evenly, washing clothes fully and effectively, realize cleaning effect better.Alternatively, multiple protruding 6 spaced apart distributions in the circumference of wheel disc 1.Thus, cleaning effect can be improved further.

In sum, according to the impeller 100 of the utility model embodiment, in the process of washing, the Curve Design of lifting rib 3 can overturn clothing effectively, clothing is made to seamlessly transit rotation, clothing is prevented to be wound around fold, specifically, rotate upstream face 31 and effectively can wash work by rubbing with the hands to clothes, rotate back side 32 to launch fluffy for the clothing of fold, and heavy for clothing side can be gathered by the Curve Design of lifting rib 3, washed by rubbing with the hands forcefully by central boss 2 and convex tendon 21, make washing cleaner, hole for water spraying 313 can to clothing jet water course in the scope of cardinal principle 360 °, that impacts on clothing is dirty.

In brief, the problems such as clothing winding, fold can be solved according to the impeller 100 of the utility model embodiment, also solve the practical problems such as clothes washing is unclean, thus the clean ratio of clothing can be improved, meet the individual demand of user.In addition, according to shape, the size of the lifting rib 3 of the utility model embodiment; And hole for water spraying 313, limbers 11 distributed number position; And convex tendon 21, protruding 6 quantity and setting position etc. all can arrange according to actual requirement, to meet actual requirement better.

Thus, according to the impeller 100 of the utility model embodiment, effectively can solve clothing winding, fold, not wash clean and the problem such as current are not strong, thus reach the effects such as washing is even, care clothing, thoroughly washing, allow user can enjoy comprehensive care clothing, clean, clean and tidy, comfortable clothing, promote user's quality of the life.

In description of the present utility model, it will be appreciated that, term " " center ", " length ", " width ", " thickness ", " on ", D score, " top ", " end ", " interior ", " outward ", " axis ", " radial direction ", orientation or the position relationship of the instruction such as " circumference " are based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as restriction of the present utility model.

In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristic.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise one or more these features.In description of the present utility model, the implication of " multiple " is two or more, unless otherwise expressly limited specifically.

In the utility model, unless otherwise clearly defined and limited, the term such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or integral; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals or the interaction relationship of two elements.For the ordinary skill in the art, the concrete meaning of above-mentioned term in the utility model can be understood as the case may be.

In the utility model, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score can be that the first and second features directly contact, or the first and second features are by intermediary mediate contact.And, fisrt feature second feature " on ", " top " and " above " but fisrt feature directly over second feature or oblique upper, or only represent that fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " below " and " below " can be fisrt feature immediately below second feature or tiltedly below, or only represent that fisrt feature level height is less than second feature.

In the description of this description, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present utility model or example.In this manual, to the schematic representation of above-mentioned term not must for be identical embodiment or example.And the specific features of description, structure, material or feature can combine in one or more embodiment in office or example in an appropriate manner.In addition, when not conflicting, the feature of the different embodiment described in this description or example and different embodiment or example can carry out combining and combining by those skilled in the art.

Although illustrate and described embodiment of the present utility model, those having ordinary skill in the art will appreciate that: can carry out multiple change, amendment, replacement and modification to these embodiments when not departing from principle of the present utility model and aim, scope of the present utility model is by claim and equivalents thereof.

Claims (10)

1. a rotary drum washing machine, is characterized in that, comprises impeller and interior bucket, and described impeller to be located at rotationally in described interior bucket and jointly to limit scrubbing space with described interior bucket, and described impeller comprises:

Wheel disc;

Central boss, described central boss is located at the side of the described scrubbing space of vicinity of described wheel disc; And

Multiple lifting ribs of spaced apart distribution in the circumference of described central boss, radial direction on the described side that at least part of described lifting rib is located at described wheel disc and towards described wheel disc extends, in the rotation direction of described impeller, each described lifting rib includes and rotates upstream face and rotate back side, described lifting rib is formed with at least one for the water of described wheel disc opposite side being passed into the hole for water spraying in described scrubbing space.

2. rotary drum washing machine according to claim 1, is characterized in that, each described lifting rib is formed with further at least one for the water in described scrubbing space being passed into the backwater hole of the described opposite side of described wheel disc.

3. rotary drum washing machine according to claim 2, it is characterized in that, the described opposite side of described wheel disc is provided with the ring baffle of two arranged concentric, at described wheel disc in the radial direction, described backwater hole is between two described ring baffles, and described hole for water spraying is arranged at least side of the both sides away from each other of two described ring baffles.

4. rotary drum washing machine according to claim 1, is characterized in that, described hole for water spraying is formed on the sidewall of described rotation upstream face of described lifting rib.

5. rotary drum washing machine according to claim 2, is characterized in that, described backwater hole is formed on the roof of described rotation upstream face of described lifting rib.

6. rotary drum washing machine according to claim 1, is characterized in that, described impeller comprises further: impeller, and described impeller to be located on described wheel disc and to be configured to make water spray from described hole for water spraying in the process of rotating at described wheel disc.

7. rotary drum washing machine according to claim 6, it is characterized in that, described impeller comprises multiple multiple blades be fixed on the described opposite side of described wheel disc, and multiple described blade is spaced apart distribution in the circumference of described wheel disc, and each described blade all extends along the radial direction of described wheel disc.

8. the rotary drum washing machine according to any one of claim 1-7, is characterized in that, the described rotation upstream face in each described lifting rib and at least one in described rotation back side extend along serpentine curve in the radial direction of described wheel disc.

9. rotary drum washing machine according to claim 8, it is characterized in that, the described rotation upstream face of each described lifting rib all extends along serpentine curve in the radial direction of described wheel disc, described rotation upstream face is included in inside and outside connected inner segment face and outer section of face in described wheel disc radial direction, described inner segment protrudes facing to the updrift side in described impeller direction of rotation, and described outer section protrudes facing to the downstream direction in described impeller direction of rotation.

10. rotary drum washing machine according to claim 1, it is characterized in that, the described rotation upstream face of each described lifting rib and described rotation back side are all formed as from up to down and the inclined-plane tilting to extend towards direction away from each other, and the angle between described rotation upstream face and described wheel disc is less than the angle between described rotation back side and described wheel disc.