CN205821773U - The outer barrel of rotary drum washing machine and the rotary drum washing machine with it - Google Patents

Abstract

The utility model discloses the outer barrel of a kind of rotary drum washing machine and there is its rotary drum washing machine, said tub is the staving shape that top is opened wide, the convex tendon towards said tub internal projection it is formed with on the inner peripheral surface of said tub, circumferentially extending along said tub of described convex tendon, and described convex tendon includes one or the most spaced apart multiple.According to the outer barrel of rotary drum washing machine of the present utility model, clean cylinder is effective.

Description

The outer barrel of rotary drum washing machine and the rotary drum washing machine with it

Technical field

This utility model relates to household electrical appliance technical field, especially relates to the outer barrel of a kind of rotary drum washing machine and has it Rotary drum washing machine.

Background technology

After rotary drum washing machine clothes washing, washing machine inner/outer tube barrel can remain a large amount of medicated clothing line bits, soft flocks and sticky Wash water, again because of the wet environment of rear enclosed of washing, grows, to the microorganism such as antibacterial, mycete, the condition of creating, for a long time and For a long time it, the barrel between inner/outer tube can form the dirty layer of one layer of yellow, brings greater risk to the physical and mental health of user.

But, the rotary drum washing machine being provided with self-cleaning program in correlation technique, only rely on small mechanical force collision difficulty To take out stains, cause the clean cylinder scarce capacity of washing machine；Or newly added too much attachment device for cleaning washing machine, improve Complete machine cost and market price；Meanwhile, introduce clean cylinder function and also greatly improve washing machine energy consumption.

Utility model content

This utility model is intended at least to solve one of technical problem present in prior art.To this end, this utility model exists In the outer barrel of a kind of rotary drum washing machine of proposition, said tub can improve the clean cylinder effect of rotary drum washing machine.

This utility model also proposes a kind of rotary drum washing machine with above-mentioned outer barrel.

The outer barrel of the rotary drum washing machine according to this utility model first aspect, said tub is the staving shape that top is opened wide Shape, the inner peripheral surface of said tub is formed the convex tendon towards said tub internal projection, and described convex tendon prolongs along the circumference of said tub Stretch, and described convex tendon includes one or the most spaced apart multiple.

According to the outer barrel of rotary drum washing machine of the present utility model, by arranging circumferentially on the inner peripheral surface of outer barrel Convex tendon, when current rise along the water stream channel limited between inner core and outer barrel under the influence of centrifugal force, can be in convex tendon position Produce rolling current near putting, wash away wall back and forth, make barrel be washed away plow effect by the high intensity of current, such that it is able to high Intensity washes away stripping dirt, improves the clean cylinder effect of rotary drum washing machine.

In embodiments more of the present utility model, the downside of described convex tendon from the bottom up side upwardly toward described Outer barrel is tilted, and the upper side of described convex tendon is tilted up towards said tub in side from top to bottom.

Further, on the cross section through said tub axis, the upper side of described convex tendon and downside are all in evagination Arcwall face.

In embodiments more of the present utility model, the upper side of described convex tendon and the inner peripheral surface circular arc mistake of said tub Crossing, the downside of described convex tendon and the inner peripheral surface arc transition of said tub, in the upside of the described convex tendon in the inner of described convex tendon Face is connected with downside and in arc transition.

In embodiments more of the present utility model, described convex tendon is horizontal-extending or circumferential spiral along said tub upwards Extend.

In embodiments more of the present utility model, in the range of 3rd/to four/4ths of the said tub degree of depth Interval is disposed with multiple described convex tendon along the vertical direction.

In embodiments more of the present utility model, described convex tendon is from the height of the inner peripheral surface projection of said tub 4 in the least In the range of rice to 6 millimeters.

In embodiments more of the present utility model, the quantity of described convex tendon is in the scope of 4 to 7.

According to the rotary drum washing machine of this utility model second aspect, including: outer barrel, said tub is according to this utility model The outer barrel of the rotary drum washing machine of first aspect；Inner core, described inner core is rotatably provided in said tub, the bottom of described inner core It is provided with drying structure.

According to rotary drum washing machine of the present utility model, by arranging the outer barrel of the rotary drum washing machine of above-mentioned first aspect, from And improve the clean cylinder effect of rotary drum washing machine.

In embodiments more of the present utility model, described drying structure includes that the draining muscle wing, the described draining muscle wing are located at On the bottom surface of described inner core and downwardly extend, and the described draining muscle wing radially extending along described inner core, described draining muscle wing bag Include and be arranged in the multiple of described inner core bottom surface periphery along the circumferentially-spaced of described inner core.

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

Accompanying drawing explanation

Fig. 1 is the schematic diagram of the rotary drum washing machine according to this utility model embodiment；

Fig. 2 is the schematic diagram of the inner core shown in Fig. 1；

Fig. 3 is the enlarged drawing at the A that Fig. 2 centre circle shows；

Fig. 4 is the schematic diagram of the outer barrel shown in Fig. 1；

Fig. 5 is the sectional view of the outer barrel shown in Fig. 4；

Fig. 6 is the enlarged drawing at the B that Fig. 5 centre circle shows.

Reference:

Rotary drum washing machine 100,

Outer barrel 1, convex tendon 11,

Interior bucket 2, the draining muscle wing 21,

Connection dish 3, central plate 21, limb portion 32, guiding gutter 33,

Impeller 4, motor 5, balance ring 6.

Detailed description of the invention

Of the present utility model embodiment is described below in detail, and the example of described embodiment is shown in the drawings, the most ad initio Represent same or similar element to same or similar label eventually or there is the element of same or like function.Below by ginseng It is exemplary for examining the embodiment that accompanying drawing describes, it is intended to be used for explaining this utility model, and it is not intended that to this utility model Restriction.

Following disclosure provides many different embodiments or example for realizing different structure of the present utility model.For Simplification disclosure of the present utility model, hereinafter parts and setting to specific examples are described.Certainly, they the most only show Example, and be not intended to limit this utility model.Additionally, this utility model can in different examples repeat reference numerals And/or letter.This repetition is for purposes of simplicity and clarity, itself does not indicate discussed various embodiment and/or sets Relation between putting.Additionally, the various specific technique that provides of this utility model and the example of material, but this area is common Technical staff is it can be appreciated that the property of can be applicable to of other techniques and/or the use of other materials.

Below with reference to Fig. 1-Fig. 6, the rotary drum washing machine 100 according to this utility model embodiment is described.

As it is shown in figure 1, according to the rotary drum washing machine 100 of this utility model embodiment, including: outer barrel 1 and inner core 2, inner core 2 It is rotatably provided in outer barrel 1.

Wherein, in certain embodiments, as Figure 4-Figure 6, outer barrel 1 in top (the such as outer barrel 1 shown in Fig. 4 Top) unlimited staving shape, the inner peripheral surface of outer barrel 1 is formed in outer barrel 1 (such as shown in Fig. 4 towards in outer barrel 1 The direction of mandrel line) protruding convex tendon 11, convex tendon 11 is circumferentially extending along outer barrel 1, and convex tendon 11 includes one or vertically side To spaced apart multiple, say, that can only arrange one on the inner peripheral surface of outer barrel 1 along the circumferentially extending convex tendon of outer barrel 1 11, the inner peripheral surface of outer barrel 1 can also arrange multiple convex tendon 11 circumferentially extending along outer barrel 1, and multiple convex tendon 11 is along outer barrel 1 Axis direction (the such as above-below direction shown in Fig. 4) interval is arranged.

By arranging convex tendon 11 circumferentially on the internal face of outer barrel 1, when current edge under the influence of centrifugal force When the water stream channel limited between inner core 2 and outer barrel 1 rises, rolling current can be produced near convex tendon 11 position, backwash Brush wall, makes barrel be washed away plow effect by the high intensity of current, such that it is able to high intensity washes away stripping dirt, improves impeller The clean cylinder effect of washing machine 100.

In an embodiment of the present utility model, as shown in Figure 5 and Figure 6, the downside of convex tendon 11 is from the bottom up Tilt towards (in other words towards the centrage of outer barrel 1) in outer barrel 1 on direction, the upper side of convex tendon 11 in side from top to bottom up towards Outer barrel 1 is tilted.In other words, the outer of the downside of convex tendon 11 is connected with the inner surface of outer barrel 1, and the downside of convex tendon 11 Outer is inclined upwardly；The extension of the upper side of convex tendon 11 is connected with the inner surface of outer barrel 1, and the interior edge of the upper side of convex tendon 11 to Lower inclination.Thus, during current rise, in current can be guided to by the upper side of convex tendon 11 and downside effectively Cylinder 2 directions, make current can effectively wash away barrel, thus realize the purpose of clean cylinder.Process further, it is also possible to be easy to convex tendon 11 Molding, the structure making convex tendon 11 is simpler rationally.

When washing machine runs, current can impact the downside of convex tendon 11 from lower to upper, owing to downside is from outside to inside Direction on be inclined upwardly, therefore, current will continue to move up along the downside of convex tendon 11, is possible not only to play disturbance The effect of current, increases washing away outer barrel 1 and inner core 2, and owing to the downside of convex tendon 11 tilts, can facilitate current Dynamic, reduce the obstruction to current.

Further, with reference to Fig. 6, on the cross section through outer barrel 1 axis, the upper side of convex tendon 11 and downside are all in outward The arc of convex (namely projecting inward towards outer barrel 1), in other words, the upper side of convex tendon 11 and downside all arcwall faces in evagination Shape.Thus, it is possible to further enhance the turbulence intensity of the current flowing through convex tendon 11, strengthen and barrel is washed away plow effect, carry Noble and unsullied cylinder effect, further, it is also possible to make the structure of convex tendon 11 more reasonable.

Preferably, with reference to Fig. 6, the inner peripheral surface arc transition of the upper side of convex tendon 11 and outer barrel 1, the downside of convex tendon 11 with The inner peripheral surface arc transition of outer barrel 1, the upper side at the inner convex tendon 11 of convex tendon 11 is connected and in arc transition with downside.By This, can further enhance the turbulence intensity of the current flowing through convex tendon 11, strengthens and barrel is washed away plow effect, improve clean cylinder Effect, further, it is also possible to make the structure of convex tendon 11 more reasonable.

In an embodiment of the present utility model, convex tendon 11 is horizontal-extending, and further, convex tendon 11 is in the horizontal direction Along outer barrel 1 circumferentially extending ringwise.Thus, it is possible to improve the motility that convex tendon 11 is arranged.Such as in showing shown in Fig. 4-Fig. 6 In example, convex tendon 11 is horizontal-extending along the circumference of the inwall of outer barrel 1, thus, it is possible to simplify the structure of outer barrel 1, it is simple to outer barrel 1 is processed Molding.

It addition, convex tendon 11 can also upwardly extend along the circumferential spiral of outer barrel 1.

With reference to Fig. 1, in the range of 3rd/to four/4ths of outer barrel 1 degree of depth, interval is disposed with many along the vertical direction Individual convex tendon 11.Thus, it is possible to improve clean cylinder effect further.Here, it should be noted that rotary drum washing machine 100 is in use During, being positioned in the range of 3rd/to four/4ths of outer barrel 1 degree of depth is the most dirty ground of rotary drum washing machine 100 Side, therefore, by arranging in this range by convex tendon 11, can strengthen the turbulence intensity of current in the range of this, strengthen cylinder Wall wash away plow effect, improve clean cylinder effect.

Preferably, with reference to Fig. 6, convex tendon 11 from the protruding height of the inner peripheral surface of outer barrel 1 in the range of 4 millimeters to 6 millimeters. Thus, it is possible not only to ensure that current form rolling current in convex tendon 11 position, strengthens the scouring effect to barrel, simultaneously can also The resistance avoiding current to rise is excessive, so that the setting of convex tendon 11 is more reasonable.

Further, the quantity of convex tendon 11 can be in the scope of 4 to 7.Thus, it is possible to raising rotary drum washing machine The clean cylinder effect of 100, the structure simultaneously making outer barrel 1 is simpler, it is simple to processing.

It addition, this utility model above-mentioned be only of the present utility model one to the quantity of convex tendon 11, the description of height of projection Individual specific embodiment, is not the restriction to this utility model protection domain, and the height of convex tendon 11 of the present utility model can also For less than 4 millimeters or more than 6 millimeters, and the quantity of convex tendon 11 might be less that 4 or more than 7.Such as, of the present utility model The height of convex tendon 11 can be 3 millimeters, 4.5 millimeters, 5 millimeters, 7 millimeters etc., and the quantity of convex tendon of the present utility model 11 can Think 3,5,8,10 etc..

Current are along the gap between inner core 2 and outer barrel 1 to upstream for convenience, and this utility model can be at the end of inner core 2 Portion arranges drying structure, and this drying structure can conveniently drive water to flow up, and certainly, this drying structure can also be applied On the washing machine being not provided with the aforesaid convex tendon of this utility model 11, this will be appreciated that for those skilled in the art.

In certain embodiments, the bottom of inner core 2 is provided with drying structure.

Preferably, drying structure includes that the draining muscle wing 21, the draining muscle wing 21 are located on inner core 2 bottom surface and downwardly extend, row The water muscle wing 21 includes being arranged in the multiple of inner core 2 bottom surface periphery along the circumferentially-spaced of inner core 2.

In an embodiment of the present utility model, with reference to Fig. 2 and Fig. 3, the draining muscle wing 21 can prolong along the radial direction of inner core 2 Stretch.Thus, current can be played the effect of guiding by the draining muscle wing 21 so that enter the water between connection dish 3 and inner core 2 diapire Stream can being squeezed in the water stream channel that outer barrel 1 and inner core 2 limit jointly by the draining muscle wing 21, in addition it is also possible to Simplify the structure of the draining muscle wing 21, it is simple to inner core 2 machine-shaping.

In an embodiment of the present utility model, with reference to Fig. 2, the quantity of the draining muscle wing 21 in the range of 24 to 36, And the drainage area of each draining muscle wing 21 is in the range of 2000 square millimeters to 3000 square millimeters.Thus, it is possible to protecting On the premise of demonstrate,proving clean cylinder effect, reduce the power consumption of rotary drum washing machine 100, improve the efficiency of rotary drum washing machine 100.

During rotary drum washing machine 100 operates, current are acted on by the exclusion of the draining muscle wing 21, constantly move to surrounding Dynamic, the most under the influence of centrifugal force, current are pushed out to the water stream channel limited between inner core 2 and outer barrel 1 and continuous Rise.The direction of arrow as shown in Figure 1 is water (flow) direction.

Preferably, outer barrel 1 inwall is provided with convex tendon 11 circumferentially, current rise during by convex tendon The stop of 11 can commutate suddenly, and form the rotating vortex of local in the trailing edge portion region of convex tendon 11, thus causes convex The current turbulence intensity of muscle 11 position increases, and so, is equivalent to provide a tangential plow power the strongest and acts on current institute On the barrel of touching, thus, it is possible to be efficiently peeled off the residue being attached on barrel, it is achieved the effect of clean cylinder.

In embodiments more of the present utility model, the bottom of inner core is also connected with dish 3, and wherein, connection dish 3 is connected to inner core The bottom of 2.

In an embodiment of the present utility model, as in figure 2 it is shown, connection dish 3 may include that central plate 31 and limb portion 32, wherein, the axis of central plate 31 and the dead in line of inner core 2, to ensure the stationarity in inner core 2 rotation process；Limb portion 32 Along extending radially outwardly of central plate 31, and limb portion 32 include arranging around central plate 31 interval in divergent shape multiple, thus, During installing, be connected with the diapire of inner core 2 by multiple limb portions 32, inner core 2 can be improved be connected dish between 3 can By property, simultaneously it is also possible that the structure of connection dish 3 is more reasonable.

Further, with reference to Fig. 2, the width dimensions in upper limb portion 32 radially outward direction is gradually reduced.Thus, may be used With in the case of ensureing connection dish 3 bulk strength, reduce material usage, cost-effective.Further, it is also possible to increase connection dish 3 And the area of the flow-guiding channel limited between inner core 2 diapire, it is ensured that have enough current at the draining muscle wing 21 and centrifugal force Rise along the water stream channel limited between inner core 2 and outer barrel 1 under common effect, thus ensure clean cylinder effect.

Alternatively, in adjacent two limb portions 32 relative to two sides be connected and junction rounding off is to form arc Guiding gutter 33, thus, it is possible to reduce the flow resistance of current, it is ensured that clean cylinder effect, meanwhile, the joint face in two adjacent limb portions 32 Rounding off, it is also possible to avoid stress to concentrate, such that it is able to improve the service life of connection dish 3.

In inner core 2 rotary course, connection dish 3 also will drying, it is provided that feedwater centrifugal force.

As it is shown in figure 1, during rotary drum washing machine 100 operates, current at the bottom of by connection dish 3 and inner core 2 it Between limit runner time, acted on by the exclusion of the draining muscle wing 21, constantly to moving around, simultaneously in the effect of centrifugal force Under, current are pushed out to the water stream channel limited between inner core 2 and outer barrel 1 and constantly rise.It is illustrated in figure 6 current side To schematic diagram, owing to being provided with convex tendon 11 circumferentially on outer barrel 1 inwall, current rise during by convex tendon 11 Stop can commutate suddenly, and form the rotating vortex of local in the trailing edge portion region of convex tendon 11, thus cause convex tendon The current turbulence intensity of 11 positions increases, and so, is equivalent to provide a tangential plow power the strongest and acts on current and touched On the barrel touched, thus, it is possible to be efficiently peeled off the residue being attached on barrel, it is achieved the effect of clean cylinder.

Below with reference to Fig. 1-Fig. 6, the rotary drum washing machine 100 according to one specific embodiment of this utility model is described.

With reference to Fig. 1, rotary drum washing machine 100 includes outer barrel 1, inner core 2, connection dish 3, impeller 4, motor 5 and balance ring 6, and Rotary drum washing machine 100 is built-in with clean cylinder program.

Specifically, as it is shown in figure 1, inner core 2 is rotatably provided in the inner side of outer barrel 1, the end of the inner core 22 that connection dish 3 connects Portion, in impeller 4 is located at inner core 22 and be positioned at the top of connection dish 3, motor 5 be located at outer barrel 1 bottom and pass through motor 5 axle and Speed-reducing clutch is connected with wash shaft and dehydrating shaft, and balance ring 6 is located at the top of inner core 2.

Being formed with inwardly protruded convex tendon 11 on the inner peripheral surface of outer barrel 1, convex tendon 11 is along the circumferentially extending of outer barrel 1 and includes edge Above-below direction is spaced apart multiple.The upper side of convex tendon 11 is inside and downward-sloping arcwall face, the downside of convex tendon 11 In the inside and arcwall face extended that is inclined upwardly, the upper side of convex tendon 11 is connected with downside and in arc transition, and convex tendon 11 Upper side and downside all with the inner peripheral surface arc transition of outer barrel 1.

Preferably, convex tendon 11 from the protruding height of the inner peripheral surface of outer barrel 1 in the range of 4 millimeters to 6 millimeters.

Preferably, in the range of 3rd/to four/4ths of outer barrel 1 degree of depth, interval is disposed with 4 along the vertical direction To 7 convex tendons 11.

The outside of the diapire of inner core 2 is provided with the draining muscle wing 21 downwardly extended, and the draining muscle wing 21 prolongs along the radial direction of inner core 22 Stretch and include being arranged in the multiple of inner core 22 bottom surface periphery along the circumferentially-spaced of inner core 2.

Preferably, the quantity of the draining muscle wing 21 is in the range of 24 to 36, and the drainage area of each draining muscle wing 21 exists In the range of 2000 square millimeters to 3000 square millimeters.

Connection dish 3 includes central plate 31 and limb portion 32, central plate 31 and the dead in line of inner core 2, and limb portion 32 includes cincture Central plate 31 is uniformly arranged and multiple in divergent shape, in two adjacent limb portions 32 relative to two sides be connected and circular arc mistake Cross to be formed the guiding gutter 33 of arc.Preferably, radially outward direction, the width dimensions in limb portion 32 is gradually reduced.

When rotary drum washing machine 100 runs clean cylinder program segment, clutch brake is opened, and embraces spring locking, wash shaft and dehydration Axle locking is integral and is in common operating condition under the driving of motor 5, and the draining muscle wing 21 at the bottom of inner core 2 squeezes current makes it Constantly rise in water stream channel between inner core 2 and outer barrel 1, simultaneously the impeller hole by impeller 4 of the washings stream in inner core 2 With the water conservancy diversion runner limited between the guiding gutter 33 of connection dish 3 is continuously replenished current so that the current of rising be provided with convex Region in the range of muscle 11 is affected to roll back and forth by convex tendon 11 washes away wall, reaches clean cylinder purpose.

Additionally, due to motor 5 rotating speed is programmed, adjusted the rotating speed of motor 5 by program, make current arranging Vibration is circulated up and down so that each position of barrel is not quite similar in the stress of different periods, thus enters in the region of convex tendon 11 scope One step ensures that easy stained area is washed away plow effect by current comprehensively, improves clean cylinder effect.

Rotary drum washing machine 100 according to this utility model embodiment, rotary drum washing machine 100 itself does not has drawing of other devices Enter, convex tendon 11 is only set on the inner peripheral surface of outer barrel 1 so that current can arrive the most dirty position, and realizes high intensity Washing away stripping dirt, clean cylinder is effective.

Additionally, according to the rotary drum washing machine 100 of this utility model embodiment, can be each after washing, secondary have rinsed Add one section of clean cylinder program, do not affect Normal Wash program；And clean cylinder current used are slurry and rinsing water, from And can realize farthest economizing on water.

In description of the present utility model, it is to be understood that term " " center ", " length ", " width ", " on ", D score, The orientation of the instruction such as " vertically ", " level ", " top ", " end ", " interior ", " outward ", " axially ", " radially ", " circumferential " or position relationship For based on orientation shown in the drawings or position relationship, it is for only for ease of description this utility model and simplifies description rather than refer to Show or imply the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not manage Solve as to restriction of the present utility model.

Additionally, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or hint relative importance Or the implicit quantity indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or Implicitly include one or more this feature.In description of the present utility model, " multiple " are meant that two or two Above, unless otherwise expressly limited specifically.

In this utility model, unless otherwise clearly defined and limited, term " install ", " being connected ", " connection ", " Gu Fixed " etc. term should be interpreted broadly, connect for example, it may be fixing, it is also possible to be to removably connect, or integral；Can be It is mechanically connected, it is also possible to be electrical connection, it is also possible to be communication；Can be to be joined directly together, it is also possible to by the indirect phase of intermediary Even, can be connecting or the interaction relationship of two elements of two element internals.For those of ordinary skill in the art For, above-mentioned term concrete meaning in this utility model can be understood as the case may be.

In this 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, first is special Levy 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 ", " lower section " and " below " permissible Be fisrt feature immediately below second feature or obliquely downward, or be merely representative of fisrt feature level height less than second feature.

In the description of this specification, reference term " embodiment ", " some embodiments ", " example ", " specifically show Example " or the description of " some examples " etc. means to combine this embodiment or example describes specific features, structure, material or spy Point is contained at least one embodiment of the present utility model or example.In this manual, the schematic table to above-mentioned term State and be necessarily directed to identical embodiment or example.And, the specific features of description, structure, material or feature are permissible One or more embodiment in office or example combine in an appropriate manner.Additionally, in the case of the most conflicting, this area Technical staff the feature of the different embodiments described in this specification or example and different embodiment or example can be entered Row combines and combination.

Embodiment the most of the present utility model, it will be understood by those skilled in the art that: In the case of without departing from principle of the present utility model and objective, these embodiments can be carried out multiple change, revise, replace And modification, scope of the present utility model is limited by claim and equivalent thereof.

Claims (10)

1. the outer barrel of a rotary drum washing machine, it is characterised in that said tub is the staving shape that top is opened wide, said tub The convex tendon towards said tub internal projection it is formed with, circumferentially extending along said tub of described convex tendon, and described convex tendon on inner peripheral surface Including one or the most spaced apart multiple.

The outer barrel of rotary drum washing machine the most according to claim 1, it is characterised in that the downside of described convex tendon is from lower past On side the most tilted upwardly toward said tub, the upper side of described convex tendon from top to bottom side up towards said tub introversion Tiltedly.

The outer barrel of rotary drum washing machine the most according to claim 2, it is characterised in that in the cross section through said tub axis On, the upper side of described convex tendon and downside all arcwall faces in evagination.

4. according to the outer barrel of the rotary drum washing machine according to any one of claim 1-3, it is characterised in that the upside of described convex tendon Face and the inner peripheral surface arc transition of the inner peripheral surface arc transition of said tub, the downside of described convex tendon and said tub, in institute The upper side of the described convex tendon in the inner stating convex tendon is connected with downside and in arc transition.

The outer barrel of rotary drum washing machine the most according to claim 1, it is characterised in that described convex tendon is horizontal-extending or along described The circumferential spiral of outer barrel upwardly extends.

6. according to the outer barrel of the rotary drum washing machine according to any one of claim 1-3, it is characterised in that in the said tub degree of depth 3/1 to four/4ths in the range of along the vertical direction interval be disposed with multiple described convex tendon.

7. according to the outer barrel of the rotary drum washing machine according to any one of claim 1-3, it is characterised in that described convex tendon is from described The height of the inner peripheral surface projection of outer barrel is in the range of 4 millimeters to 6 millimeters.

The outer barrel of rotary drum washing machine the most according to claim 1, it is characterised in that the quantity of described convex tendon is at 4 to 7 In the range of.

9. a rotary drum washing machine, it is characterised in that including:

Outer barrel, said tub is the outer barrel according to the rotary drum washing machine according to any one of claim 1-8；

Inner core, described inner core is rotatably provided in said tub, and the bottom of described inner core is provided with drying structure.

Rotary drum washing machine the most according to claim 9, it is characterised in that described drying structure includes the draining muscle wing, described The draining muscle wing is located on the bottom surface of described inner core and downwardly extends, and the described draining muscle wing radially extending along described inner core, institute State the draining muscle wing to include being arranged in the multiple of described inner core bottom surface periphery along the circumferentially-spaced of described inner core.