CN1906349A - Drum assembly for washing machine - Google Patents

Abstract

A lifter 200 is provided on a drum 100 for lifting and dropping laundry in the drum during a rotation of the drum 100. The lifter 200 slides and moves along an inner surface of the drum 100 after passing through the inner surface so as to be engaged to the drum 100. At least one slot 150 is provided on a circumference of the drum 100, and at least one hook 210 is provided on the lifter 200 for being engaged to the slot 150. Further, at least one projection 170 is provided on the drum 100, and at least on rib 230 is provided on the lifter 200. The projection 170 and the rib 230 are tightly engaged with each other so as to secure the lifter 200 to the drum 100 when the lifter completely slides and moves laterally.

Description

The drum assembly of washing machine

Technical field

The present invention relates to a kind of washing machine, relate in particular to the drum assembly (drum assembly) that a kind of inside has lifter (lifter), this lifter is used for promoting and falling washing clothes, thereby improves the performance of washing, rinsing and dehydration.

Background technology

Washing machine is a typical home electrical equipment, and it utilizes washing agent and water washing clothing.Washing machine generally is divided into two types,, is divided into roof-mounted (toploading type) and muzzle-loading (front loading type) according to the position of the opening that receives washing clothes that is.

Roof-mounted washing machine generally comprises the vertical bucket (tub) that is used for holding washing clothes, the electromagnetic shaker (pulsater) that washs in the bucket rotation and to clothing and is arranged on the washing machine upper surface to be used for the lid of the described bucket of opening and closing.

Front-loading washing machine generally comprises the horizontal tub that is used for holding washings, be arranged on horizontal cylinder that described bucket is used to hold washing clothes, be arranged on and be used on the drum inner surface in the cylinder rotation washing clothes washed, promote when rinsing or dehydration and to fall at least one lifter (lifter) of clothing and be arranged on the front surface of washing machine door with the opening and closing cylinder.

Summary of the invention

The technical problem that solves

As mentioned above, in the cylinder of front-loading washing machine, be provided with at least one lifter.Usually by means of connector this lifter is installed on the inner surface of cylinder as screw or bolt and so on.So the shortcoming of the syndeton of described cylinder and lifter is that assembler need spend for a long time lifter is fixed on the cylinder, and the assembling process that washing machine is produced is complicated.

Technical solution

Therefore, the present invention aims to provide a kind of drum assembly that is used for washing machine, and this assembly can be eliminated one or more problem that restriction and defective because of related art cause basically.

An object of the present invention is to improve the structure of the drum assembly of washing machine, assembler can be fixed in lifter on the cylinder fast and easily.

Another object of the present invention is to improve the structure of the drum assembly of washing machine, and lifter stably is fixed on the cylinder.

The part of other advantages of the present invention, purpose and feature will be set forth in the following description, a part will make those skilled in the art more apparent by check subsequently, perhaps by enforcement of the present invention those skilled in the art are taken a hint.Purpose of the present invention and other advantages can be by specification text description and the structure that specifically provides of claim and accompanying drawing be achieved and obtain.

In order to realize these purposes and to obtain other advantages, according to purpose of the present invention, the concrete and general description, the drum assembly that is used for washing machine comprises: inside holds the cylinder of washing clothes as this specification; With at least one lifter on the inner surface that is arranged on cylinder, this lifter promotes during cylinder rotation and falls washing clothes in the cylinder, wherein, lifter on by the inner surface at cylinder after the periphery of cylinder, slide down to cylinder chimeric (engaged).

Cylinder can comprise cylinder, and this cylinder comprises: the space during washing clothes is contained in; Be installed in the back on the rear portion of cylinder; With the protecgulum that is installed on the cylinder front portion, protecgulum has the opening by the door opening and closing.

Cylinder comprises that also at least one is arranged on the slit on the cylinder periphery.And lifter can comprise at least one claw, and this claw is inserted in the described slit and caused when lifter slides and the slit tabling along vertically moving of described slit.Slit can be configured to vertically be elongated shape along cylinder.Slit can be configured to keep (hold) described head by slit and after the longitudinal direction of slit is displaced sideways at the head of described claw.

Claw can comprise from the extended neck of lifter and be formed on head on the end of described neck.And slit can comprise wide section and narrow the section narrower than described head that allows head therefrom to pass through, and narrow Duan Yukuan portion section connects, so that lifter holds described neck when sliding on the inner surface of cylinder.

The slit of cylinder can comprise that also at least one is arranged on the fillet part between wide section and narrow the section, and this part will be inserted wide the claw in the section and be directed to narrow section reposefully.Wherein, described fillet partly is set on the both sides of narrow section, perhaps is set on the side of described narrow section.

Described slit can comprise a pair of slit, and this is to having preset distance between the slit.This slit when being fixed on the described cylinder, lifter can be made the claw elastic bending that places each slit to being configured to.And can with described slit to be configured to along the glide direction of lifter mutually away from.In addition, each right slit of described slit can comprise the end, and this end holds each claw when lifter is fixed on the described cylinder, and wherein the distance between each end is greater than the distance between each claw.

Cylinder also can comprise from cylinder and extending out and the projection (projection) of supporting elevation device, thereby can prevent that lifter from sliding backward after being fixed in lifter on the cylinder.Lifter can be configured to when sliding on the inner surface of lifter at cylinder, cross (go over) described projection and be fixed on the described cylinder.Wherein, described projection comprises the inclined-plane that is arranged on the protruding upper surface, causes to make described lifter cross described projection reposefully and be incorporated on (coupled) cylinder when lifter slides.

Cylinder also can comprise the notch portion around the part of described projection, and, described projection can be configured such that this projection around the part of described notch portion towards the cylinder inside bend.Described projection can be configured to the predetermined slope bending.

Lifter can comprise that also from the extended bump of this lifter (protrusion), wherein this bump and described projection are chimeric, slides backward after it is fixed in described cylinder to prevent described lifter.

Lifter in the cylinder also can comprise the depressed part that is arranged on the lifter bottom and be arranged on the depressed part and strengthen the flank of the intensity of lifter, wherein, when being incorporated into lifter on the cylinder, described flank and described protruding tabling and lifter is fixed on the described cylinder.

Described cylinder also comprises the projection that at least one extends out from described cylinder between described a pair of slit, wherein said protruding supporting elevation device slides backward after it is fixed in cylinder to prevent lifter.

Should be appreciated that general description that the present invention is above and detailed description hereinafter all are exemplary with indicative, being intended to provides further explanation to the present invention for required protection.

Description of drawings

Be included in the specification helping further understanding the present invention and to combine with the specification word segment and the accompanying drawing that constitutes the application's a part shows embodiments of the present invention, they and text description part one are used from explains principle of the present invention.In the accompanying drawing:

Fig. 1 is the cross-sectional view of washing machine of the present invention;

Fig. 2 is the decomposition diagram of drum assembly of the present invention;

Fig. 3 is the perspective view of the drum assembly after the assembling of the present invention;

Fig. 4 is the perspective view that is formed at other embodiments of the slit in the cylinder of the present invention.

The specific embodiment

Describe preferred implementation of the present invention in detail now with reference to example shown in the drawings.Under possible situation, identical Reference numeral is represented identical or similar parts in institute's drawings attached.

With reference to Fig. 1, the housing 1 of washing machine of the present invention comprises substrate 2, wall portion 4, loam cake 6 and protecgulum 8.Substrate 2 forms the bottom of housing 2, and wall portion 4 is vertically mounted on the substrate 2 and forms rear wall and two sidewalls of washing machine of the present invention.The top of wall portion 4 is opened wide, and the front portion of wall portion is also opened wide.And, the open upper portion of loam cake 6 covering wall portions 4, the front portion of opening wide of protecgulum 8 covering wall portions 4.In addition, be provided with control panel 12 between the top of protecgulum 8 and loam cake 6, the user can utilize control panel 12 control washing machines.

In housing 1, be provided with horizontal tub 14 so that washings are remained in wherein.Bucket 14 is suspended in the housing 1 by a plurality of springs 5 and damper 3.Spring 5 is set between the top and housing 1 of bucket 14, and damper 3 is set between the bottom and housing 1 of bucket 14.Spring 5 and damper 3 not only in housing 1, the suspend bucket 14 and the vibrations of the bucket 14 that can reduce to produce during the washer operation.

The front portion of bucket 14 is provided with opening 16, and the protecgulum 8 of housing 1 is provided with opening 9.Opening 9 and 16 is interconnected and faces mutually.And, be incorporated into by hinge housing 1 protecgulum 8 thedoor 10 opening and closing openings 9 and 16.In addition, between the opening 16 of bucket 14 anddoor 10, be provided with packing ring 22.The washings that packing ring 22 can prevent to leave in the bucket 14 leak.

The top of bucket 14 is provided with water supply hole 18, is used for washings are infeeded bucket 14.Water supply hole 18 is communicated withwater supply pipe 60 by detergent box 65.Therefore, when washing agent is put into detergent box 65, washings can be infeeded in the bucket 14.In addition, be provided with the outlet 20 that the washings in the bucket 14 are discharged in the bottom of bucket 14.Outlet 20 is communicated with drain hose 70 by draining pump 75.Therefore, during draining pump 75 runnings, washings dirty in the bucket 14 are discharged by outlet 20 and drain hose 70.

In bucket 14, be provided with the rotatablehorizontal cylinder assembly 40 that is used to hold washing clothes.Drum assembly is directly driven by the motor on the rear surface that is installed in bucket 14 24.Motor 24 comprises the stator 26 that is fixed on bucket 14 the rear surface and around the rotatable rotor 28 of stator 26.Spider 30 is installed on the rear surface ofdrum assembly 40, and the axle 33 that is connected in rotor 28 is connected on the spider 30 by bucket 14.

Drum assembly 40 of the present invention comprises that inside holds thecylinder 100 of washing clothes and is arranged at least onelifter 200 on the inner surface of cylinder 100.Lifter 200 promotes duringcylinder 100 rotation and falls washing clothes in thecylinder 100, with washing, rinsing and the dewatering that improves washing machine.Fig. 2 and 3 at length shows the structure ofdrum assembly 40 of the present invention.Therefore, the detailed structure ofdrum assemblies 40 hereinafter is described with reference to Fig. 2 and 3.

Cylinder 100 comprisescylinder 110,back 120 and protecgulum 130.Cylinder 110 forms the periphery ofcylinder 100 and has the space that holdswashing clothes.Back 120 is installed on the unlimited rear portion ofcylinder 110 and covers the rear portion of cylinder 110.Protecgulum 130 is installed in the open front ofcylinder 110, and covers the front portion ofcylinder 110.

Be thatcylinder 110 andback 120 are provided with a plurality ofeyelets 115 as illustrated in fig. 1 and 2, on the periphery of cylinder 100.So the washings in the bucket 14 can import in the space ofcylinder 100 by eyelet 115.In addition,protecgulum 130 is provided with opening 131, and the user can put intowashing clothes cylinder 100 like this, and can take out washing clothes in thecylinder 100 outwardly by opening 131.Opening 131 is bydoor 10 opening and closing.And spider 30 is installed on the rear surface atback 120, as shown in Figure 1.

As mentioned above, in traditional washing machine, lifter is installed on the cylinder by the connector such as screw.Otherwise, in the washing machine of the present invention, needn't use any independent connector just can makelifter 200 chimeric and be fixed on thecylinder 100 as screw or bolt and so on.More particularly, the part oflifter 200 of the present invention inner surface bycylinder 100 and slide when lifter is incorporated on thecylinder 100 along the inner surface of cylinder 100.Whereby, do not use any connector just can makelifter 200 chimeric and be fixed on thecylinder 100 as screw and bolt and so on.To describe this unique syndeton ofcylinder 100 of the present invention and lifter 200 below in detail.

As shown in Figure 2,cylinder 100 is that the periphery ofcylinder 110 is provided with at least one slit 150.Slit 150 for example vertically is elongated shape along cylinder 100.Slit 150 has and is the slit of preset distance between a pair of.This each slit to slit can be arranged to as shown in Figure 2 almost parallel each other.Can alongcylinder 100 every pair of slit vertically is set, and they are spaced apart of each other at a certain distance.And, many row's slits can be set, along the periphery ofcylinder 100 shown in Fig. 2 and 3.

Lifter 200 comprises at least oneclaw 210, and eachclaw 210 is chimeric with per pass slit 150.Claw 210 extends out from the bottom oflifter 200, and can and move along the longitudinal sliding motion ofslit 150 after being placed into slit 150.Whereby, can be with theclaw 210 oflifter 200 chimeric and be fixed on theslit 150 of cylinder 100.Claw 210 comprisesneck 211 that extends out from the bottom oflifter 200 and thehead 215 that is formed onneck 211 1 ends.Wherein,head 215 for example has the most advanced and sophisticated wedge-type shape of band, and as shown in Figure 2, its width is wider than the width ofneck 211.

Head 215 inserted and by behind theslit 150, this head is along with the lateral sliding oflifter 200 and move and along the vertically moving ofslit 150, thereby is incorporated on the cylinder 100.After this,head 215 is kept by the part of theslit 150 that finally accommodatesclaw 210, and can not deviate from from this part of slit 150.Whereby,lifter 200 andclaw 210 are by chimeric and be fixed on thecylinder 200.

For this reason,slit 150 for example compriseswide section 151 with wider width and narrow thesection 155 that is connected in this wide section 151.The width ofwide section 151 is enough to allowhead 215 to pass through wherein, andnarrow section 155 is narrower than wide section 151.Wherein, whenlifter 200 was also mobile along the longitudinal sliding motion ofslit 150, the width ofnarrow section 155 was enough to hold theneck 211 ofclaw 210, but narrower than the width of head 215.In other words,narrow section 155 should be enough to prevent thathead 215 from therefrom passing through by narrow one-tenth.

Betweenwide section 151 andnarrow section 155, be provided with rank shape part.Rank shape partly is provided with at least one fillet part 160.Filletpart 160 can be guidedclaw 210, especially theneck 211 in wide thesection 151 can be imported reposefully narrow section 155.Filletpart 160 is set on each rank shape part on the both sides ofnarrow section 155, as shown in Figure 2.Otherwisefillet part 160 also can be arranged on only rank shape part on the side ofnarrow section 155, as shown in Figure 4.

In addition, preferably,claw 210 flexibly can be embedded on thecylinder 100, rather than flexibly not be embedded on the cylinder 100.Then, can be withlifter 200 without any shifting amount ground, be installed on thecylinder 100 more firmly.Therefore, preferably make slit form flexibly bending of eachclaw 210 whenlifter 200 is completely fixed oncylinder 200 to 150.

For this reason, can with between have a preset distance a pair ofslit 150 form and make this leave gradually each other along the glide direction oflifter 200slit 150, rather than this accurately is parallel to each other to slit 150, as shown in Figure 4.In other words, slit strengthens gradually to the glide direction of the preset distance between 150 along lifter 200.Therefore, when slit is substantially equal to distance ' h ' between eachclaw 210 to the distance between eachwide section 151 of 150, slit to the distance ' H ' between eachnarrow section 155 of 150 greater than the distance ' h ' between eachclaw 210.

In this case, claw is placed into slit to after 150 to 210, along with claw to 210 along the longitudinal sliding motion ofslit 150 with move, claw becomes more and more outwardly-bent to eachneck 211 of 210.Therefore, claw to 210 neck to 211 catch tightlycylinder 100 at slit to the part between eachslit 150 of 150, as shown in Figure 3.Thus, whenclaw 210 insertsnarrow section 155 ofslit 150 fully, because theelasticity lifter 200 ofhook 210 is firmly fixed on thecylinder 100.

Simultaneously,cylinder 100 is provided withprojection 170, unclamps fromcylinder 100 to prevent thelifter 200 that is completely fixed in cylinder 100.Projection 170 inner surfaces fromcylinder 100 extend to the inside ofcylinder 100, as shown in Figure 2.Therebyprojection 170 supportingelevation devices 200 prevent thatlifter 200 from sliding backward after it is incorporated on thecylinder 100 fully.Thus, can prevent effectively that lifter 200 from getting loose from cylinder 100.Hereinafter further describe the detailed structure of theprojection 170 that is arranged on thecylinder 100 with reference to Fig. 3.

As shown in Figure 3, the periphery ofcylinder 100 is provided with at least onenotch portion 180, wherein the part of thesenotch portion 180 wound drums 100.Notch portion 180 for example has the U-shaped shape,cylinder 100 bynotch portion 180 around part with predetermined slope towardscylinder 100 interior curve.Thus, this sweep forms projection 170.As mentioned above,projection 170 is for tilting, andprojection 170 has the inclined-plane on it is connected in the upper surface of inner surface ofcylinder 100 thus.Simultaneously,projection 170 for example is arranged on slit between 150, shown in Fig. 2 and 3.

Lifter 200 is provided with at least one bump, and this bump is chimeric withprojection 170 whenlifter 200 is fixed on the cylinder 100.More particularly, this bump for example is set on the lower surface oflifter 200, and chimeric withprojection 170, so that whenlifter 200 is incorporated on thecylinder 100 fullylifter 200 is fixed on thecylinder 100.

Simultaneously, the bottom oflifter 200 is provided withdepressed part 220, to reduce the weight oflifter 200, also is provided with at least oneflank 230 ondepressed part 220, thereby can increases the intensity of lifter 200.So, preferably, whenlifter 200 andcylinder 100 are chimeric, makeflank 230 chimeric withprojection 170, thereby play the effect of aforesaid bump, as shown in Figure 2, rather than bump is arranged on the position that is separated withflank 230 on the lower surface oflifter 200 and makes it to be embedded on thecylinder 100.

Hereinafter will describe the assembling process ofcylinder 100 andlifter 200 in detail.At first, assembler is inserted eachclaw 210 in eachwide section 151 of eachslit 150, subsequently, makes wide thesection 151 of thehead 215 ofclaw 210 by slit 150.After this, assembler vertically laterally promoteslifter 200 alongslit 150, will be contained in narrow thesection 155 that wide theneck 211 in thesection 151 moves to slit 150 again.At this moment,fillet part 160 can successfully importnarrow section 155 with the neck in wide thesection 151 211.

Along with theneck 211 ofclaw 200 entersnarrow section 155, theneck 211 ofclaw 200 is more outwardly-bent by means of elasticity.In addition, along withlifter 200 along the lateral sliding ofslit 150 with move, cross the inclined-plane on top of theprojection 170 of bending and inclination reposefully fromdepressed part 200 outstanding flanks 230.At this moment,bend relief 170 is flexibly pushed to the outside ofcylinder 100 byflank 230.

At last, whenlifter 200 was displaced sideways fully,flank 230 fully can be through (pass over) above projection 170.Subsequently, theprojection 170 that is promoted byflank 230 is back to initial position under elastic reaction, and whereby, the sidepiece ofprojection 170 andflank 230 is chimeric andsupport ribs 230 closely.Therefore,lifter 200 can not slide backward, and whereby,lifter 200 can be firmly fixed on thecylinder 100 with having shifting amount.

Industrial applicibility

As mentioned above, need not lifter of the present invention can be fixed on the cylinder under the situation as any separately attached parts of screw or bolt and so on.Therefore, assembler can be assembled drum assembly fast, easily.In addition, because that a pair of claw flexibly holds on to the flank of the projection of part between two slits of cylinder and cylinder and lifter is closely chimeric, so lifter can be firmly fixed on the cylinder under the situation of shifting amount not having.

It will be understood by those skilled in the art that under the prerequisite that does not exceed design of the present invention or protection domain and can carry out various remodeling and conversion the present invention.Therefore, those remodeling and the conversion that falls in claims and the equivalents scope thereof contained in the present invention.

Claims (21)

1. drum assembly that is used for washing machine comprises:

Inside holds the cylinder of washing clothes; With

Be arranged at least one lifter on the inner surface of described cylinder, this lifter promotes during the rotation of described cylinder and falls washing clothes in the described cylinder, wherein, described lifter slides on the inner surface of described cylinder after by the periphery of described cylinder, causes with described cylinder chimeric.

2. drum assembly according to claim 1, wherein, described cylinder comprises:

Cylinder, this cylinder comprise that inside holds the space of washing clothes;

Be installed in the back on the rear portion of described cylinder; With

Be installed in the protecgulum on the described cylinder front portion, this protecgulum has the opening by the door opening and closing.

3. drum assembly according to claim 1, wherein, described cylinder comprises the slit that is arranged at least together on the described cylinder periphery, thereby described lifter comprises that at least one inserts in this slit and vertically move when described lifter slides and the claw of described slit tabling along this slit.

4. drum assembly according to claim 3, wherein, described slit is configured to vertically be elongated shape along described cylinder.

5. drum assembly according to claim 3, wherein, the head that described slit is formed at described claw keeps this head by described slit and after vertically laterally the moving of described slit.

6. drum assembly according to claim 1, wherein, described lifter comprises claw, this claw has the neck that extends out from described lifter and is formed on head on the end of described neck, described cylinder comprises slit, this slit has wide section and narrow the section narrower than described head that allows described head therefrom to pass through, and this narrow section is connected in described wide section, so that hold described neck when sliding on the inner surface of described lifter at described cylinder.

7. drum assembly according to claim 6, wherein, described slit comprises that also at least one is arranged on the fillet part between described wide section and described narrow the section, the claw that this part will be inserted in described wide the section is directed to described narrow section reposefully.

8. drum assembly according to claim 7, wherein, described fillet partly is set on the both sides of described narrow section.

9. drum assembly according to claim 7, wherein, described fillet partly is set on the side of described narrow section.

10. drum assembly according to claim 3, wherein, described slit comprises the slit that has preset distance between a pair of being configured to.

11. drum assembly according to claim 10, wherein, described a pair of slit is configured to make when described lifter is fixed on the described cylinder the described claw that places each slit flexibly crooked.

12. drum assembly according to claim 10, wherein, described a pair of slit be configured to along the glide direction of described lifter mutually gradually away from.

13. drum assembly according to claim 10, wherein, each slit in the described a pair of slit comprises the end, and this end holds each claw when described lifter is fixed on the described cylinder; Wherein, the distance between described each end is greater than the distance between described each claw.

14. drum assembly according to claim 1, wherein, thereby described cylinder comprises extending out and supporting described lifter from described cylinder prevent the projection that described lifter slides backward after described lifter is fixed in described cylinder.

15. drum assembly according to claim 14 wherein, is fixed on the described cylinder thereby described lifter is configured to cross described projection when sliding on the inner surface of described lifter at described cylinder.

16. drum assembly according to claim 14, wherein, described projection comprises the inclined-plane that is arranged on the described convex upper surface, makes to make described lifter cross described projection along described inclined-plane reposefully when described lifter slides, thereby is incorporated on the described cylinder.

17. drum assembly according to claim 14, wherein, described cylinder comprises the notch portion around the part of described projection; Wherein, described projection be formed make described protruding ring around the part of described notch portion towards described cylinder interior curve.

18. drum assembly according to claim 17, wherein, described projection is configured to the predetermined slope bending.

19. drum assembly according to claim 14, wherein, described lifter comprises the bump that extends out from described lifter; Wherein, thus described bump and described projection are chimeric to prevent that described lifter from sliding backward after it is fixed in described cylinder.

20. drum assembly according to claim 14, wherein, described lifter comprises:

Be arranged on the depressed part on the described lifter bottom; With

Be arranged on the described depressed part and strengthen the flank of the intensity of described lifter, wherein, when described lifter combined with described cylinder, described flank and described projection were chimeric and described lifter is fixed on the described cylinder.

21. drum assembly according to claim 10, wherein, described cylinder also comprises the projection that at least one extends out from described cylinder between described a pair of slit; Thereby wherein said projection supports described lifter and prevent that described lifter from sliding backward after it is fixed in described cylinder.

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