CN214458934U - Drum type washing machine washing drum assembly and drum type washing machine - Google Patents

Abstract

The utility model belongs to the technical field of washing machine, specifically disclose a drum type washing machine washing section of thick bamboo subassembly and drum type washing machine, this drum type washing machine includes: the outer barrel is provided with end walls at two axial ends, through holes are formed in the two end walls, and an outer opening is formed in the side peripheral wall of the outer barrel; the inner cylinder is rotatably arranged in the outer cylinder, a transmission shaft and a support shaft are respectively arranged at two axial ends of the inner cylinder, the transmission shaft and the support shaft are respectively arranged in through holes in two end walls of the outer cylinder in a penetrating manner, an inner opening is arranged on the side peripheral wall of the inner cylinder, and the inner opening can be aligned to the outer opening through rotation of the inner cylinder; the first vibration damping assembly and the second vibration damping assembly respectively rotatably support the transmission shaft and the support shaft; and the sealing ring is sleeved on the transmission shaft and the support shaft, the outer ring of the sealing ring is in sealing connection with the through hole in the end wall of the outer barrel, and the inner ring of the sealing ring is in sealing connection with the vibration damping assembly. The utility model discloses can reduce the vibration transmission that the inner tube produced when moving and to the urceolus.

Description

Drum type washing machine washing drum assembly and drum type washing machine

Technical Field

The utility model relates to a washing machine technical field, concretely relates to drum type washing machine washing section of thick bamboo subassembly and drum type washing machine.

Background

The existing drum washing machine comprises an outer drum and an inner drum, wherein the outer drum and the inner drum are horizontally arranged in the outer drum, and clothes rotate and roll in the inner drum for cleaning the clothes. The rotating shaft of the inner cylinder penetrates through the outer cylinder to be connected with a driving device, the outer cylinder is suspended and supported on a box body of the washing machine through a vibration damping component, wherein the outer cylinder rotates eccentrically along with the load of clothes in the inner cylinder to generate vibration amplitude, so that in order to avoid mutual interference and safe work, a working part on the drum washing machine, which is close to the outer cylinder, cannot be contacted with the outer cylinder so as to prevent the vibration amplitude of the outer cylinder from causing displacement of the working part, and also needs to be separated from the outer cylinder by a certain distance to form a vibration gap, so that the whole volume and height of the drum washing machine can be increased undoubtedly, in addition, a corrugated pipe section with a certain length is needed to be adopted for corrugated buffering at a part connected between a pipeline on the drum washing machine and the outer cylinder, but the diameter of the corrugated pipe section is increased compared with the pipeline, so that the volume of the pipeline and the complexity of the pipeline design are both increased, and a certain length of a cable is needed to play a role in buffering to the unexpected acting force applied when the outer cylinder vibrates, therefore, the cable can be prevented from being moved and pulled apart due to the vibration of the outer drum, but the length of the cable connected with the controller is correspondingly increased, so that the cable is not favorable for fixing the position of the cable, the risk that the cable is wound with other components and then pulled apart is increased, the controller cannot normally work, and the control stability of the existing drum washing machine is reduced.

SUMMERY OF THE UTILITY MODEL

Based on this, to prior art, the utility model aims to solve the technical problem that a drum type washing machine washing section of thick bamboo subassembly and drum type washing machine are provided for solve the more technical problem of interior outer tube vibration transmission ratio that exists among the prior art at least.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

in a first aspect, the present invention provides a drum washing machine washing drum assembly, including:

the outer barrel is provided with end walls at two ends in the axial direction, through holes are formed on the two end walls,

an outer opening is formed on the side peripheral wall of the outer cylinder;

the inner cylinder is rotatably arranged in the outer cylinder, a transmission shaft and a support shaft are respectively arranged at the two axial ends of the inner cylinder, the transmission shaft and the support shaft are respectively arranged in through holes on the two end walls of the outer cylinder in a penetrating way,

the side peripheral wall of the inner cylinder is provided with an inner opening, and the inner cylinder can enable the inner opening to be aligned with the outer opening through rotation;

the first vibration damping assembly and the second vibration damping assembly are respectively arranged adjacent to two axial ends of the outer cylinder and respectively rotatably support the transmission shaft and the support shaft;

and two sealing rings are arranged and respectively sleeved on the transmission shaft and the supporting shaft, the outer ring of each sealing ring is hermetically connected with the through hole in the end wall of the outer barrel, and the inner ring of each sealing ring is hermetically connected with the vibration damping assembly.

Further optionally, a plurality of circles of concentric protrusions are formed on the sealing ring, and the concentric protrusions form a telescopic structure, so that the sealing ring can deform in the radial direction.

Further optionally, the outer edge of the sealing ring is provided with a first annular flange along its circumference,

a first annular mounting groove is formed on the end wall of the outer cylinder along the circumferential direction of the through hole,

the first annular flange is used for being embedded into the first annular mounting groove to realize sealing connection with the first annular flange.

Further optionally, the first and second vibration attenuation modules are each provided with a support seal having a support cavity and a second annular mounting groove around the periphery of the support cavity,

the inner edge of the sealing ring is provided with a second annular flange along the circumferential direction, the second annular flange is used for being embedded into the second annular mounting groove and realizing sealing connection with the second annular mounting groove,

the transmission shaft and the support shaft are respectively inserted into the corresponding support cavities.

Further optionally, the drum washing machine further includes a bearing and an oil seal located on a side of the first vibration damping assembly facing the outer tub, wherein the bearing is disposed in the support cavity and rotatably supports the transmission shaft, and the oil seal is used for the transmission shaft to pass through and be in sealed connection with the support cavity.

Further optionally, the vibration damping assembly includes a cylindrical spring vibration absorber having one end connected to the supporting sealing portion and a pair of cylindrical damping vibration absorbers disposed at two sides of the cylindrical spring vibration absorber at the same included angle, and the other end of each cylindrical spring vibration absorber and the other end of each cylindrical damping vibration absorber are provided with a fixing end.

Further optionally, the outer circumference of the outer cylinder is provided with a plurality of pairs of ribs extending in the radial direction, and a gap between each pair of ribs is used for arranging a working part or a cable therebetween.

Further optionally, a connecting portion is provided on the outer cylinder, and the connecting portion is used for fixed connection of the outer cylinder.

Further optionally, a closing door is provided on the inner barrel, the closing door being provided on a side peripheral wall of the inner barrel for closing the inner opening.

In a second aspect, the utility model provides a drum washing machine, which comprises a machine shell and a washing drum component of the drum washing machine,

the outer cylinder is directly and fixedly connected with the shell,

the inner cylinder is connected with the shell through the vibration reduction assembly.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a drum type washing machine makes the inner tube supported and the damping independently for the urceolus through setting up a damping subassembly respectively at inner tube axial both ends, alleviate the influence of the centrifugal eccentric vibration of inner tube and clothing to whole washing machine or even eliminate, make the urceolus be in relative quiescent condition and do not follow the inner tube vibration, need not consider the vibration clearance, urceolus periphery can closely install work part and cable even on it, thereby can reduce drum type washing machine complete machine volume and height, reduce the pipeline volume, optimize the pipeline design, the assurance has very high control stability.

Drawings

In order to make the content of the present invention more clearly understood, the following description of the present invention in further detail is made according to the embodiments of the present invention with reference to the accompanying drawings, but the exemplary embodiments of the present invention and the description thereof are used for explaining the present invention, and do not constitute an undue limitation to the present invention, wherein:

FIG. 1 is a front view of an exploded view of an embodiment of a drum washing machine according to the present invention;

FIG. 2 is a front view of the drum washing machine according to the embodiment of the present invention in an exploded state;

FIG. 3 is a front view of the drum washing machine according to the embodiment of the present invention;

FIG. 4 is a left side view of the embodiment corresponding to FIG. 3;

FIG. 5 is a right side view of the embodiment corresponding to FIG. 3;

FIG. 6 is a schematic cross-sectional view of a seal ring.

The reference numbers in the figures denote:

10-an outer cylinder; 11-an outer opening; 12-a through hole; 13-convex ribs; 20-inner cylinder; 21-inner opening; 30-a drive shaft; 40-supporting the shaft; 50-a first damping assembly; 60-a second damping assembly; 51. 61-supporting the seal; 51A, 61A-support chamber; 51B, 61B-a second annular mounting groove; 52. 62-spring cylindrical shock absorber; 53. 63-damping cylindrical shock absorbers; 70-a drive device; 71-a motor stator; 72-a motor rotor; 80-a sealing ring; 81-concentric protrusions; 82-ring hole; 83. a first annular flange; 84. a second annular flange; 90-a bearing; 100-oil seal.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1 to 5, an embodiment of the present invention provides a drum washing machine, which includes a cabinet (not shown), an outer tub 10, an inner tub 20, a first damping assembly 50, a second damping assembly 60, and a driving device 70, wherein the outer tub 10 and the inner tub 20 are disposed in the cabinet, a radial outer periphery of the outer tub 10 is provided with an outer opening 11, the inner tub 20 is rotatably disposed in the outer tub 10, a radial outer periphery of the inner tub 20 is provided with an inner opening 21 alignable with the outer opening 11, it is to be understood that the outer opening 11 is sealed by an openable closing door (not shown) which is closed to seal the inner tub 20 when the drum washing machine normally operates, and is opened when it is required to put in or take out laundry with respect to the inner tub 20, and in an opened state of the closing door, the inner opening 21 is aligned with the outer opening 11, and the outer opening 11 is maintained aligned with a laundry taking-out port (not shown) disposed in a vertical direction of the cabinet, therefore, the user can conveniently take the clothes. Through holes 12 are respectively formed at two axial ends of the outer cylinder 10, a transmission shaft 30 and a support shaft 40 are respectively arranged at two axial ends of the inner cylinder 20, the transmission shaft 30 and the support shaft 40 are respectively arranged in the corresponding through holes 12 in a penetrating manner, a first vibration damping assembly 50 and a second vibration damping assembly 60 are respectively arranged adjacent to the two axial ends of the outer cylinder 10 and respectively rotatably support the transmission shaft 30 and the support shaft 40, two supporting points can be provided for the inner cylinder 20 to support in the axial direction by arranging the transmission shaft 30 and the support shaft 40, and the transmission shaft 30 and the support shaft 40 are connected with the corresponding vibration damping assemblies in a manner of penetrating through the through holes 12 without being in contact with the outer cylinder 10, so that the vibration amplitude of the inner cylinder 20 is prevented from being transmitted to the outer cylinder 10 to cause the vibration amplitude of the outer cylinder 10. The first vibration damping assembly 50 is disposed between the driving device 70 and the outer tub 10, the transmission shaft 30 is inserted into the first vibration damping assembly 50 and is in driving connection with the driving device 70, and since the rotation of the inner tub 20 receiving the driving force of the driving device 70 and the vibration generated by the operation of the driving device 70 are substantially absorbed by the first vibration damping assembly 50 and the second vibration damping assembly 60, the vibration transmitted to the cabinet is greatly reduced or even substantially eliminated, thereby greatly reducing the noise generated when the drum washing machine operates. In conclusion, because the utility model discloses drum type washing machine's inner tube 20 axial both ends are supported by transmission shaft 30 and first damping subassembly 50 and back shaft 40 and second damping subassembly 60 that are connected respectively, urceolus 10 can not arouse the amplitude by the vibration of inner tube 20, thereby be favorable to fixing the work part, a controller, pipeline or cable on the self of urceolus 10 or very close to its position, do not need or reserve few vibration clearance, thereby help reducing drum type washing machine's whole volume and height, can also reduce volume and optimal design to the pipeline, thereby it has improved drum type washing machine's control stability to have guaranteed that the controller normally works.

Referring to fig. 1 and 2 with emphasis, in one embodiment, the drum washing machine further includes a pair of sealing rings 80 fixed in one of the through holes 12, respectively, and having ring holes 82, and the driving shaft 30 and the supporting shaft 40 are inserted into the corresponding ring holes 82. In this way, each sealing ring 80 improves the sealing performance for the corresponding through hole 12, and improves the stability of the operation of the inner cylinder 20.

Referring to fig. 1 and 6, in one embodiment, each sealing ring 80 is provided with a plurality of circles of concentric protrusions 81, and the vibration of the transmission shaft 30, which may be transmitted to the sealing ring 80, can be buffered by the plurality of circles of concentric protrusions 81, so as to further prevent the outer cylinder 10 from being affected by the vibration of the inner cylinder 20. Preferably, the concentric protrusions 81 are constructed in a corrugated structure, so that the expansion range of the sealing ring 80 in the radial direction is larger, vibration during operation of the inner cylinder can be accommodated, and the sealing effect is ensured.

Further, the outer edge of the sealing ring 80 is provided with a first annular flange 83 along the circumferential direction thereof, the end wall of the outer cylinder 10 is provided with a first annular mounting groove along the circumferential direction of the through hole 12, and the first annular flange 83 is used for being embedded into the first annular mounting groove to realize sealing connection therewith. The inner edge of the sealing ring 80 is formed with a second annular flange 84 along its circumference, said second annular flange 84 being adapted to be inserted into and sealingly engage the second annular mounting groove.

Referring with emphasis to fig. 2, in one embodiment, the first and second vibration damping assemblies 50 and 60 are each provided with a supporting sealing portion 51, 61 having a supporting cavity 51A, 61A and a second annular mounting groove 51B, 61B surrounding the outer periphery of the supporting cavity 51A, 61A, each second annular mounting groove 51B, 61B and the ring hole 82 of the corresponding sealing ring 80 can be connected in a sealing manner by clamping, screwing or the like, the transmission shaft 30 and the supporting shaft 40 are respectively inserted into the corresponding supporting cavity 51A, 61A, therefore, by the sealing connection of the second annular mounting grooves 51B, 61B and the annular hole 82, the sealing performance of the corresponding through hole 12 is improved, the first vibration damping assembly 50 and the second vibration damping assembly 60 are reliably connected with the transmission shaft 30 and the support shaft 40 respectively and exert enough supporting force, so that the vibration of the drive shaft 30 and the support shaft 40, which is brought about when the inner tube 20 operates, can be effectively damped.

In one embodiment, the drum washing machine further comprises a bearing 90 and an oil seal 100 at a side of the first vibration damping assembly 50 facing the outer tub 10, wherein the bearing 90 is disposed in the support cavity 51A and rotatably supports the transmission shaft 30, the bearing 90 functions to support the entire power running system when the transmission shaft 30 transmits power, and the oil seal 100 allows the transmission shaft 30 to pass through and is in sealed connection with the support cavity 51A, so that the oil seal 100 keeps the bearing 90 sealed in the support cavity 51A in a lubrication manner.

In one embodiment, the inner and outer barrels 20, 10 have the same central axis about which the drive shaft 30, support shaft 40 and seal ring 80 are centered, so that the inner barrel 20 is well positioned relative to the outer barrel 10 and is relatively independently supported and damped by each damping assembly.

In one embodiment, the outer tub 10 is fixedly connected directly to the cabinet, and since the outer tub 10 is hardly vibrated by the inner tub 20, the outer tub 10 can be fixedly connected directly inside the drum washing machine, for example, by a screw connection without providing a vibration damping member, thereby saving costs.

Referring to fig. 1 with emphasis, in one embodiment, the outer circumference of the outer tub 10 is provided with a plurality of pairs of ribs 13 extending in a radial direction, and a gap between each pair of ribs 13 is provided for a working part or a cable such as a power supply line or a data line to be disposed therebetween, so that, since the amplitude of the inner tub 20 is not transmitted to the outer tub 10 to cause its vibration, not only the working part and the cable are not displaced by disposing the working part or the cable directly on the outer tub 10 and being limited by the pair of ribs 13, but also the overall volume and height of the cabinet are further reduced since the vibration gap is eliminated and the disposition space of the working part or the cable is saved.

In an embodiment, the driving device 70 includes a DD motor and a belt motor, therefore, the utility model discloses the drum washing machine can adopt different driving devices according to actual need, and obtain the same damping effect, when the driving device 70 is established to the DD motor, the DD motor includes motor stator 71 and motor rotor 72, motor rotor 72 carries out the transmission through transmission shaft 30, transmits the revolving force to inner tube 20, makes inner tube 20 carry out high-speed or low-speed rotation under the DD motor drive in order to realize different clothing processing modes.

With particular reference to fig. 3 to 5, in one embodiment each damping assembly comprises a plurality of cylindrical dampers connected at one end to the supporting sealing portions 51, 61, namely: a spring cylindrical damper 52, 62 and a pair of damper cylindrical dampers 53, 63 which are disposed at both sides of the spring cylindrical damper 52, 62 at the same angle of, for example, 30 °, the other end of each spring cylindrical damper 52, 62 and each damper cylindrical damper 53, 63 is provided with a fixing end fixed to the casing, at which a stud or bolt, etc. can be provided and fixed to a screw hole corresponding to the casing, since the inner tube 20 contains laundry, which generates unbalance in the inner tube 20 when the laundry is rotated, and the unbalance causes the amplitude of the inner tube 20 to be particularly protruded at the time of high-speed rotation, in which case the amplitude is reduced or even eliminated by each cylindrical damper, in particular, the amplitude is transmitted to the cylindrical damper of the first damper assembly 50 by the bearing 90 disposed in the first damper assembly 50, and, by setting each cylindrical damper as the above spring cylindrical damper 52, which is disposed at a certain angle, The 62 and the damping cylindrical vibration absorbers 53 and 63 provide good vibration damping effect for the transmission shaft 30 and the support shaft 40 in the horizontal direction and the vertical direction through repeated tests, and further, the vibration of the inner cylinder 20 and the driving device 70 is greatly weakened or even basically eliminated when being transmitted to the machine shell after being subjected to vibration damping treatment by the cylindrical vibration absorbers, thereby greatly reducing the noise of the drum washing machine during operation.

In one embodiment, each fixed end is located at the same horizontal plane and fixed with the bottom of the casing, since the whole weight of the drum washing machine is concentrated on the outer drum 10 and the inner drum 20 and the accessory parts located thereon, and the stability is higher according to the object with the lower gravity center, the outer drum 10, the inner drum 20 and each vibration damping component can be located at the position with the lower gravity center inside the drum washing machine by fixing each fixed end with the bottom of the casing, thereby greatly helping the dynamic stability of the washing machine, not causing the casing to vibrate and make noise greatly, and greatly optimizing the noise vibration of the whole machine.

Unless specifically stated otherwise, the relative arrangement of the components set forth in these embodiments does not limit the scope of the present invention. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the orientation words such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, and in the case of not making a contrary explanation, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be interpreted as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A drum assembly for a drum type washing machine, comprising:

the outer barrel is provided with end walls at two ends in the axial direction, through holes are formed on the two end walls,

an outer opening is formed on the side peripheral wall of the outer cylinder;

the inner cylinder is rotatably arranged in the outer cylinder, a transmission shaft and a support shaft are respectively arranged at the two axial ends of the inner cylinder, the transmission shaft and the support shaft are respectively arranged in through holes on the two end walls of the outer cylinder in a penetrating way,

an inner opening is formed in the side peripheral wall of the inner cylinder, and the inner opening can be aligned with the outer opening through rotation of the inner cylinder;

the first vibration damping assembly and the second vibration damping assembly are respectively arranged adjacent to two axial ends of the outer cylinder and respectively rotatably support the transmission shaft and the support shaft;

and the two sealing rings are respectively sleeved on the transmission shaft and the support shaft, the outer ring of each sealing ring is hermetically connected with the through hole on the end wall of the outer barrel, and the inner rings of the two sealing rings are respectively hermetically connected with the first vibration damping assembly and the second vibration damping assembly.

2. A drum assembly for a drum type washing machine according to claim 1, characterized in that the sealing ring is formed with a plurality of concentric protrusions, and the plurality of concentric protrusions form a telescopic structure, so that the sealing ring can be deformed in the radial direction.

3. A drum assembly for a drum type washing machine according to claim 2, characterized in that the outer edge of the sealing ring is provided with a first annular flange along its circumference,

a first annular mounting groove is formed on the end wall of the outer cylinder along the circumferential direction of the through hole,

the first annular flange is used for being embedded into the first annular mounting groove to realize sealing connection with the first annular flange.

4. A drum assembly for a drum type washing machine according to claim 2, characterized in that the first and second vibration damping assemblies are each provided with a support sealing portion having a support cavity and a second annular mounting groove surrounding the outer periphery of the support cavity,

the inner edge of the sealing ring is provided with a second annular flange along the circumferential direction, the second annular flange is used for being embedded into the second annular mounting groove and realizing sealing connection with the second annular mounting groove,

the transmission shaft and the support shaft are respectively inserted into the corresponding support cavities.

5. A drum assembly for a drum washing machine according to claim 4, characterized in that the drum washing machine further comprises a bearing and an oil seal at a side of the first vibration reduction assembly facing the outer drum, wherein the bearing is disposed in the support cavity and rotatably supports the transmission shaft, and the oil seal is used for the transmission shaft to pass through and be in sealing connection with the support cavity.

6. A drum assembly for a drum washing machine according to claim 5, characterized in that the first and second vibration damping assemblies each comprise a spring cylindrical vibration damper having one end connected to the supporting sealing portion and a pair of damping cylindrical vibration dampers having the same included angle at both sides of the spring cylindrical vibration damper, and the other end of each of the spring cylindrical vibration damper and the damping cylindrical vibration damper is provided with a fixed end.

7. A drum assembly for a drum type washing machine according to claim 1, characterized in that the outer circumference of the outer drum is provided with a plurality of pairs of ribs extending in the radial direction, and a gap between each pair of ribs is provided for a working part or a cable to be arranged therebetween.

8. A drum assembly for a drum type washing machine according to claim 1, characterized in that a connection part is provided on the outer drum for the fixed connection of the outer drum.

9. A drum assembly for a drum washing machine according to any one of claims 1-8, characterized in that a closing door is provided on the inner drum, the closing door being provided on a side peripheral wall of the inner drum for closing the inner opening.

10. A drum washing machine, characterized in that, comprises a machine shell and a washing drum component of the drum washing machine according to any one of claims 1 to 9,

the outer cylinder is directly and fixedly connected with the shell,

the inner cylinder is connected with the shell through the first vibration damping assembly and the second vibration damping assembly.

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