CN109930355B

CN109930355B - Inner and outer drum assembly of washing machine and drum washing machine

Info

Publication number: CN109930355B
Application number: CN201711346367.9A
Authority: CN
Inventors: 刘玉祯; 张纯锋; 肖磊; 苑传庆; 刘晓春
Original assignee: Haier Smart Home Co Ltd; Qingdao Jiaozhou Haier Washing Electric Appliance Co Ltd
Current assignee: Haier Smart Home Co Ltd; Qingdao Jiaozhou Haier Washing Electric Appliance Co Ltd
Priority date: 2017-12-15
Filing date: 2017-12-15
Publication date: 2021-11-05
Anticipated expiration: 2037-12-15
Also published as: CN109930355A; WO2019114826A1

Abstract

The invention discloses an inner and outer drum assembly of a washing machine and the washing machine with the same, and belongs to the technical field of washing equipment. The accurate of assurance outer barrel mounted position improves the quality of interior outer barrel assembly, and the interference setting of sealing washer is fixed firm, and sealed effectual has avoided the problem of leaking, has prolonged life. The drum washing machine adopts the inner drum assembly and the outer drum assembly of the washing machine, and can be accurately positioned in the whole machine by utilizing the stop structure on the front flange, so that the positioning error is reduced, and the failure rate is reduced.

Description

Inner and outer drum assembly of washing machine and drum washing machine

Technical Field

The invention relates to the technical field of washing equipment, in particular to an inner and outer drum assembly of a washing machine and a roller washing machine.

Background

With the increasing living standard of people, the washing machine has become one of the necessary household appliances, and most people use the washing machine as a main tool for washing clothes.

Common washing machines are classified into household washing machines and industrial washing machines. When an inner barrel assembly and an outer barrel assembly of the industrial washing machine are assembled, one end of the outer barrel is welded and sealed with a front flange of the outer barrel, and the other end of the outer barrel is sealed with a rear flange of the outer barrel through bolts. The welding position is mainly judged by manual experience, and can not be accurately positioned, so that the quality of an inner cylinder assembly and an outer cylinder assembly is reduced, the sealing performance is poor, and on the other hand, the sealing gap of the bolt is large, so that the sealing effect is poor, the water leakage problem is easily caused, and the normal use of the washing machine is influenced.

The plastic outer barrel of the household washing machine determines the positioning of the inner and outer barrel assemblies in the whole machine through the positions of the shock absorbers and the holes of the hanging springs on the plastic outer barrel, but the outer barrel of the industrial washing machine generally adopts a sheet metal outer barrel, so that the inner and outer barrel assemblies are heavier, the sheet metal outer barrel can only judge the positions of the inner and outer barrel assemblies on the bracket by the experience of manual welding, on one hand, the requirement on the technical level of operators is very high, on the other hand, the positioning error of the inner and outer barrel assemblies in the whole machine is easy to cause, and the inner and outer barrel assemblies are easy to be influenced by unbalanced force in the using process, so that the service life of the washing machine is reduced, and the failure rate is increased.

Disclosure of Invention

The invention aims to provide an inner and outer drum assembly of a washing machine, which aims to solve the technical problems of poor sealing property and large positioning error between the inner drum and the outer drum in the prior art.

As the conception, the technical scheme adopted by the invention is as follows:

an inner and outer drum assembly of a washing machine comprises an outer drum body, a front flange, a rear flange and an outer drum support, wherein a blocking structure is arranged, one end of the outer drum body is abutted to the blocking structure on the front flange, and a sealing ring in interference contact is arranged between the other end of the outer drum body and the outer drum support as well as between the other end of the outer drum body and the rear flange.

The other end of the outer cylinder body is abutted to the outer cylinder support, a V-shaped ring is arranged at the joint of the outer cylinder body and the outer cylinder support in a surrounding mode, and the V-shaped ring presses the outer cylinder body to abut against the sealing ring.

The V-shaped ring comprises two arc rings arranged at intervals, the two ends of each arc ring are connected through a locking piece, and the locking pieces can adjust the abutting force of the V-shaped ring to the outer barrel.

The stop structure is a flange arranged at the edge of the front flange, and the flange is annular and extends outwards along the radial direction of the front flange.

And the edge of one end of the outer cylinder body is abutted with the flanging and is fixed along the abutted part by welding.

Wherein, turn-ups with preceding flange integrated into one piece.

The outer cylinder body, the outer cylinder support and the rear flange form an accommodating cavity, and the sealing ring is sleeved on the rear flange and matched with the accommodating cavity in shape.

The outer wall of the sealing ring is provided with a plurality of first bulges abutted to the outer cylinder, the inner wall of the sealing ring is provided with a plurality of second bulges abutted to the rear flange, and the outer cylinder is abutted to the sealing ring tightly until the first bulges and the second bulges deform.

The invention also aims to provide a drum washing machine, which solves the technical problems of large positioning error and high failure rate of an inner drum assembly and an outer drum assembly in the prior art.

As the conception, the technical scheme adopted by the invention is as follows:

a drum washing machine comprises a frame and the inner drum and outer drum assembly of the washing machine, wherein the stop structure is abutted against the frame.

The washing machine comprises a frame, an outer barrel body, a plurality of fixing pieces and a washing machine inner and outer barrel assembly, wherein the frame is provided with a plurality of fixing pieces at intervals, the fixing pieces bypass the outer peripheral surface of the outer barrel body and are fixedly connected with the frame, and the fixing pieces tightly abut against the outer barrel body.

The invention has the beneficial effects that:

according to the inner and outer drum assembly of the washing machine, one end of the outer drum body is limited through the stop structure on the front flange, and the sealing ring in interference contact is arranged between the other end of the outer drum body and the outer drum support and between the other end of the outer drum body and the rear flange, so that the outer drum body is accurate in installation position, the quality of the inner and outer drum assembly is improved, the inner and outer drum assembly is firm in fixation and good in sealing effect, the water leakage problem is avoided, and the service life is prolonged.

According to the drum washing machine, due to the adoption of the inner drum assembly and the outer drum assembly of the washing machine, the stop structure on the front flange can be used for accurately positioning in the whole machine, so that the positioning error is reduced, and the failure rate is reduced.

Drawings

FIG. 1 is a schematic structural view of an inner and outer drum assembly of a washing machine according to the present invention;

FIG. 2 is a cross-sectional view of the inner and outer drum assemblies of the washing machine provided by the present invention;

FIG. 3 is an enlarged schematic view at A of FIG. 2;

FIG. 4 is an enlarged schematic view at B of FIG. 2;

FIG. 5 is a schematic view of a sealing ring of the inner and outer drum assemblies of the washing machine according to the present invention;

FIG. 6 is an exploded view of the inner and outer drum assemblies of the washing machine according to the present invention;

FIG. 7 is a schematic view of a part of the structure of the drum washing machine provided by the present invention;

fig. 8 is a cross-sectional view of fig. 7.

In the figure:

1. an inner and outer drum assembly of the washing machine; 2. a frame; 3. a fixing sheet;

11. an outer cylinder; 12. a front flange; 13. a rear flange; 14. an outer cylinder bracket; 15. a seal ring; 16. a V-shaped ring; 17. an inner cylinder;

121. flanging;

151. a first protrusion; 152. a second protrusion;

161. and (4) fixing the ring.

Detailed Description

In order to make the technical problems solved, the technical solutions adopted and the technical effects achieved by the present invention clearer, the technical solutions of the present invention are further described below by way of specific embodiments with reference to the accompanying drawings. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some but not all of the elements associated with the present invention are shown in the drawings.

Referring to fig. 1 to 6, an inner and outer drum assembly 1 of a washing machine according to an embodiment of the present invention includes an outer drum 11, a front flange 12, a rear flange 13, and an outer drum bracket 14, wherein a stop structure is disposed on the front flange 12, one end of the outer drum 11 abuts against the stop structure, and a seal ring 15 in interference contact is disposed between the other end of the outer drum 11 and the outer drum bracket 14, and the rear flange 13. The stop structure ensures that the mounting position of the outer barrel body 11 is accurate, the quality of the inner and outer barrel assembly is improved, the fixing is firm, the sealing effect of the sealing ring 15 is good, the water leakage problem is avoided, and the service life is prolonged.

The stop structure may be a protrusion disposed on the front flange 12, and at least two protrusions disposed at intervals along the circumferential direction of the front flange 12 can perform an abutting positioning function on the edge of the outer cylinder 11. In the embodiment, the stop structure is a flange 121 disposed at the edge of the front flange 12, and the flange 121 is annular and extends outward in the radial direction of the front flange 12. When the outer cylinder body 11 is assembled with the front flange 12, the edge of the outer cylinder body 11 is abutted against the flange 121 for limiting, and the accuracy of the installation position of the outer cylinder body 11 is ensured.

After one end edge of the outer cylinder body 11 is abutted to the turned-over edge 121, the welding is fixed along the seam of the abutted part in a welding mode, the welding position is accurate, and the welding effect is good. When fixed outer barrel 11 and preceding flange 12, the seam of outer barrel 11 with turn-ups 121 butt department has been sealed to the welding seam, and is sealed effectual, and because of the setting of turn-ups 121, has increased the edge of outer barrel 11 and preceding flange 12's area of contact for it is fixed firm, the difficult disconnection of welding seam, long service life.

In this embodiment, the turned-over edge 121 and the front flange 12 are integrally formed, so that the processing and the production are convenient, and the structural strength is ensured. Of course, the flange 121 may be welded to the edge of the front flange 12, and the formation of the flange 121 is not limited herein.

The other end of the outer cylinder 11 is abutted to the outer cylinder support 14, an accommodating cavity is formed among the outer cylinder 11, the outer cylinder support 14 and the rear flange 13, and the sealing ring 15 is sleeved on the rear flange 13 and is located in the accommodating cavity. The shape of the sealing ring 15 is matched with that of the accommodating cavity, and the accommodating cavity is filled with the sealing ring 15 after being extruded.

The outer wall of the sealing ring 15 is provided with a plurality of first bulges 151 abutted against the outer cylinder body 11, the inner wall of the sealing ring 15 is provided with a plurality of second bulges 152 abutted against the rear flange 13, and the outer cylinder body 11 and the sealing ring 15 are abutted against the first bulges 151 and the second bulges 152 to deform. In this embodiment, the three first protrusions 151 are disposed in parallel at intervals to perform a three-layer protection function, if water passes through the first protrusions 151, the second first protrusions 151 block the water, and if water passes through the second first protrusions 151, the third first protrusions 151 block the water, so that the three-layer protection greatly avoids the water leakage problem. In this embodiment, three second protrusions 152 are disposed in parallel at intervals, and the working principle thereof is the same as that of the first protrusions 151, which is not described herein again. Of course, the number of the first and

second protrusions

151 and 152 is not limited herein.

In order to enable the outer cylinder body 11 to tightly abut against the sealing ring 15, a V-shaped ring 16 is arranged, the V-shaped ring 16 is arranged around the joint of the outer cylinder body 11 and the outer cylinder support 14, and the V-shaped ring 16 presses the outer cylinder body 11 to tightly abut against the sealing ring 15. The section of the V-shaped ring 16 is V-shaped, and the inner wall of the V-shaped ring 16 is tightly propped against the outer cylinder 11 and the outer cylinder bracket 14.

In order to adjust the abutting force of the outer cylinder body 11 on the sealing ring 15, a locking piece is arranged on the V-shaped ring 16. In this embodiment, the V-shaped ring 16 includes two arc rings that the interval set up, and the both ends of two arc rings are passed through the retaining member and are connected, and the retaining member can adjust the tight power of support of V-shaped ring 16 to outer barrel 11. The two arc rings are abutted against the joint of the outer barrel body 11 and the outer barrel support 14, and a certain interval is reserved between two ends of one arc ring and two ends of the other arc ring. The retaining member is including setting up in the solid fixed ring 161 at the both ends of arc circle and the bolt (not shown in the figure) that is used for connecting two solid fixed ring 161, and the bolt passes solid fixed ring 161 and connects two arc circles, and through adjusting bolt's nut position on the screw rod, the spaced size between two arc circles can be adjusted, changes the tight power of supporting of V-arrangement circle 16 to outer barrel 11, and then adjusts the tight power of supporting of outer barrel 11 to sealing washer 15. Of course, the V-shaped ring 16 may be formed by connecting more than two arc-shaped rings, and is not limited herein.

In the present embodiment, the inner cylinder 17 is disposed inside the outer cylinder 11. The inner cylinder 17 is coaxially installed with the outer cylinder 11, the rear flange 13 and the outer cylinder bracket 14.

Referring to fig. 7 and 8, the embodiment of the invention further provides a drum washing machine, which comprises a frame 2 and the inner and outer drum assemblies 1 of the washing machine. The stop structure on the front flange 12 is abutted against the frame 2, so that the inner and outer drum assemblies 1 of the washing machine can be accurately positioned in the whole machine, the positioning error is reduced, and the failure rate is reduced.

A plurality of fixing pieces 3 are arranged on the rack 2 at intervals, the fixing pieces 3 bypass the outer peripheral surface of the outer barrel body 11 and are fixedly connected with the rack 2, and the fixing pieces 3 are tightly abutted against the outer barrel body 11 and are fixed to the outer barrel body 11. In this embodiment, there are two fixing pieces 3 respectively connected to the front end and the rear end of the outer cylinder 11, so as to ensure the force balance of the outer cylinder 11.

The foregoing embodiments are merely illustrative of the principles and features of this invention, which is not limited to the above-described embodiments, but rather is susceptible to various changes and modifications without departing from the spirit and scope of the invention, which changes and modifications are within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. An inner and outer drum assembly of a washing machine comprises an outer drum body (11), a front flange (12), a rear flange (13) and an outer drum support (14), and is characterized in that one end of the outer drum body (11) is abutted to a stop structure on the front flange (12), and a sealing ring (15) in interference contact is arranged between the other end of the outer drum body (11) and the outer drum support (14) as well as the rear flange (13);

the other end of the outer cylinder (11) is abutted against the outer cylinder support (14), an accommodating cavity is formed among the outer cylinder (11), the outer cylinder support (14) and the rear flange (13), and the sealing ring (15) is sleeved on the rear flange (13) and is matched with the accommodating cavity in shape;

outer barrel (11) with the junction of urceolus support (14) encircles and is provided with V-arrangement circle (16), V-arrangement circle (16) oppression outer barrel (11) support tightly sealing washer (15), V-arrangement circle (16) are including two arc circles that the interval set up, two the both ends of arc circle are passed through the retaining member and are connected.

2. The inside-outside drum assembly for washing machines according to claim 1, characterized in that said locking member can adjust the tightening force of said V-shaped ring (16) against said outside drum (11).

3. The inner and outer drum assembly for a washing machine as claimed in claim 1, wherein the stop structure is a flange (121) provided at an edge of the front flange (12), and the flange (121) is annular and extends outward in a radial direction of the front flange (12).

4. The inner and outer drum assembly for washing machine according to claim 3, wherein one end edge of the outer drum (11) abuts against the flange (121) and is fixed by welding along the abutting place.

5. Inner and outer drum assembly for a washing machine according to claim 3, characterized in that said flange (121) is formed integrally with said front flange (12).

6. The inner and outer drum assembly of the washing machine as claimed in claim 1, wherein a plurality of first protrusions (151) abutting against the outer drum (11) are arranged on the outer wall of the sealing ring (15), a plurality of second protrusions (152) abutting against the rear flange (13) are arranged on the inner wall of the sealing ring (15), and the outer drum (11) and the sealing ring (15) abut against until the first protrusions (151) and the second protrusions (152) deform.

7. A drum washing machine, characterized in that it comprises a frame (2) and an inner and outer drum assembly (1) of a washing machine according to any one of claims 1 to 6, said stop structure being in abutment with said frame (2).

8. A drum washing machine according to claim 7, characterized in that a plurality of fixing plates (3) are arranged on the frame (2) at intervals, the fixing plates (3) are wound around the outer circumference of the outer drum (11) and are fixedly connected with the frame (2), and the fixing plates (3) are abutted against the outer drum (11).