WO2019114826A1

WO2019114826A1 - Inner and outer drum assembly for washing machine, and drum-type washing machine

Info

Publication number: WO2019114826A1
Application number: PCT/CN2018/121239
Authority: WO
Inventors: 刘玉祯; 张纯锋; 肖磊; 苑传庆; 刘晓春
Original assignee: 青岛海尔滚筒洗衣机有限公司
Priority date: 2017-12-15
Filing date: 2018-12-14
Publication date: 2019-06-20
Also published as: CN109930355B; CN109930355A

Abstract

Disclosed is an inner and outer drum assembly (1) for a washing machine, the inner and outer drum assembly comprising an outer drum body (11), a front flange (12), a rear flange (13), an outer drum support (14), a sealing ring (15), and a stop structure provided on the front flange (12), wherein a first end of the outer drum body (11) abuts the stop structure, and the sealing ring (15) is provided in a space formed between a second end of the outer drum body (11), the outer drum support (14) and the rear flange (13), and is in interference contact with the second end of the outer drum body (11), the outer drum support (14) and the rear flange (13). The inner and outer drum assembly (1) for a washing machine can be accurately positioned in the whole machine to ensure that the outer drum body (11) is accurately installed in place, improving the quality of the inner and outer drum assembly (1) and achieving secure fixing, and the sealing ring (15) has good sealing effects so as to prevent leakage of water and extend the service life.

Description

Washing machine inner and outer cylinder assembly and drum washing machine

The present application claims priority to Chinese Patent Application No. PCT Application No.

Technical field

The present disclosure relates to the field of washing equipment, and relates, for example, to an inner and outer cylinder assembly of a washing machine and a drum washing machine.

Background technique

With the increasing living standards of people, washing machines have become one of the must-have appliances, and most people use the washing machine as the main tool for washing clothes.

Commonly used washing machines are classified into domestic washing machines and industrial washing machines. In the assembly of the inner and outer cylinders of the industrial washing machine, the first end of the outer cylinder is welded and sealed to the front flange of the outer cylinder, and the second end is sealed with the bolt of the outer cylinder rear flange. On the one hand, the position of welding is mainly judged by manual experience, which cannot be accurately positioned, resulting in a decrease in the quality of the inner and outer cylinder assemblies and poor sealing; on the other hand, the bolt sealing gap is large, resulting in poor sealing effect, thus easily causing water leakage problems and affecting The washing machine is in normal use.

The plastic outer cylinder of the household washing machine determines the positioning of the inner and outer cylinder assembly in the whole machine through the position of the shock absorber on the plastic outer cylinder and the hole of the hanging spring, but the outer cylinder of the industrial washing machine generally adopts a sheet metal outer cylinder, so the inside and outside The cylinder assembly is relatively heavy, and the outer cylinder of the sheet metal can only judge the position of the inner and outer cylinder assembly on the bracket by the experience of manual welding. This aspect puts high requirements on the technical level of the operator, and on the other hand, it is easy to cause internal and external The positioning error of the cylinder assembly in the whole machine is large, and the inner and outer cylinder assemblies are susceptible to the unbalanced force during use, resulting in a decrease in the life of the washing machine and an increase in the failure rate.

Summary of the invention

The present disclosure provides an inner and outer cylinder assembly of a washing machine, which can solve the technical problem of poor sealing between the inner and outer cylinders and large positioning errors existing in the related art.

An embodiment provides an inner and outer cylinder assembly of a washing machine, including an outer cylinder, a front flange, a rear flange, an outer cylinder bracket, a sealing ring, and a stopping structure disposed on the front flange, wherein the The first end of the outer cylinder abuts the stopping structure, and the sealing ring is disposed in a space formed between the second end of the outer cylinder, the outer cylinder bracket and the rear flange, And in interference contact with the second end of the outer cylinder, the outer cylinder bracket and the rear flange.

An embodiment further provides a drum washing machine comprising a frame and an inner and outer drum assembly of the washing machine as described above, the stop structure abutting the frame.

DRAWINGS

1 is a schematic structural view of an inner and outer cylinder assembly of a washing machine according to an embodiment;

2 is a cross-sectional view of an inner and outer cylinder assembly of a washing machine according to an embodiment;

Figure 3 is an enlarged schematic view of A of Figure 2;

Figure 4 is an enlarged schematic view of the portion B of Figure 2;

5 is a partial structural schematic view of a sealing ring of an inner and outer cylinder assembly of a washing machine according to an embodiment;

6 is a schematic exploded view showing the inner and outer cylinder assembly of the washing machine according to an embodiment;

Figure 7 is a partial structural schematic view of a drum washing machine according to an embodiment;

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

In the picture:

1. The inner and outer cylinder assembly of the washing machine; 2. the frame; 3. the fixed piece;

11, outer cylinder; 12, front flange; 13, rear flange; 14, outer cylinder bracket; 15, sealing ring; 16, V-shaped ring; 17, inner cylinder; 18, first curved ring; a second curved ring; 20, a first locking member; 21 a second locking member;

121, flanging;

151, a first protrusion; 152, a second protrusion;

161, fixed ring.

Detailed ways

Referring to FIG. 1 to FIG. 6 , the embodiment provides an inner and outer cylinder assembly 1 for a washing machine, including an outer cylinder 11 , a front flange 12 , a rear flange 13 and an outer cylinder bracket 14 . The front flange 12 is provided with a stop. The first end of the outer cylinder 11 abuts against the stop structure, and the second end of the outer cylinder 11 and the outer cylinder bracket 14 and the rear flange 13 are provided with a sealing ring 15 for interference contact. The stopping structure ensures the installation position of the outer cylinder 11 is accurate, the quality of the inner and outer cylinder assembly is improved, the fixing is firm, the sealing ring 15 has a good sealing effect, the water leakage problem is avoided, and the service life is prolonged.

In an embodiment, the blocking structure may be a protrusion disposed on the front flange 12, and at least two protrusions disposed along the circumferential direction of the front flange 12 can abut the edge of the outer cylinder 11 effect. In the present embodiment, the stopper structure is a flange 121 provided 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 11 is assembled with the front flange 12, the edge of the outer cylinder 11 abuts against the flange 121 to ensure the installation position of the outer cylinder 11 is accurate.

After the edge of the first end of the outer cylinder 11 abuts against the flange 121, the gap along the abutment is welded and fixed, the welding position is accurate, and the welding effect is good. While fixing the outer cylinder 11 and the front flange 12, the weld seal seals the gap between the outer cylinder 11 and the flange 121, the sealing effect is good, and the outer cylinder is enlarged by the setting of the flange 121 The contact area of the edge of the 11 with the front flange 12 makes the fixing firm, the weld seam is not easily broken, and the service life is long.

In the embodiment, the flange 121 is integrally formed with the front flange 12 to facilitate processing and production, and to ensure structural strength. In an embodiment, the flange 121 may also be welded to the edge of the front flange 12. In this embodiment, the manner in which the flange 121 is formed is not limited.

The second end of the outer cylinder 11 abuts the outer cylinder bracket 14 , and the accommodating cavity is formed between the outer cylinder 11 , the outer cylinder bracket 14 and the rear flange 13 , and the sealing ring 15 is sleeved on the rear flange 13 and located Set inside the cavity. The shape of the sealing ring 15 is adapted to the shape of the accommodating cavity, and the sealing ring 15 is squeezed to fill the accommodating cavity.

The outer wall of the sealing ring 15 is provided with a plurality of first protrusions 151 abutting against the outer cylinder body 11. The inner wall of the sealing ring 15 is provided with a plurality of second protrusions 152 abutting the rear flange 13 and the outer tube The body 11 abuts against the seal ring 15 until the first protrusion 151 and the second protrusion 152 are deformed. In this embodiment, the three first protrusions 151 are arranged in parallel to play a three-layer protection function. If water passes over the first first protrusion 151, the second first protrusion 151 blocks the water. If there is water crossing the second first protrusion 151, the third first protrusion 151 blocks the water, and the three-layer protection greatly avoids the water leakage problem. In this embodiment, the three second protrusions 152 are disposed in parallel, and the working principle is the same as that of the first protrusion 151, and details are not described herein again. In an embodiment, the number of the first protrusions 151 and the second protrusions 152 is not limited.

In order to make the outer cylinder 11 abut against the sealing ring 15, a V-ring 16 is provided, and the V-ring 16 is disposed around the joint of the outer cylinder 11 and the outer cylinder bracket 14, and the V-ring 16 presses the outer cylinder 11 against the seal. Circle 15. The V-shaped ring 16 has a V-shaped cross section, and the inner wall of the V-shaped ring 16 abuts against the outer cylinder 11 and the outer cylinder bracket 14.

In order to facilitate the adjustment of the abutting force of the outer cylinder 11 against the sealing ring 15, a locking member is provided on the V-ring 16. In the present embodiment, the V-ring 16 includes two arcuate rings spaced apart, the locking member includes a first locking member 20 and a second locking member 21, and the two curved rings include a first curved ring 18 And the second curved ring 19, the first end of the first curved ring 18 and the first end of the second curved ring 19 are connected by the first locking member 20, and the second curved ring The second end of the second curved ring 19 is connected to the second end of the second curved ring 19 by a second locking member 21, and the locking member can adjust the abutting force of the V-ring 16 to the outer cylinder 11. Two arcuate rings are disposed around the junction of the outer cylinder 11 and the outer cylinder bracket 14. The first end of the first arcuate ring 18 is connected to the first end of the second arcuate ring 19 and is provided with a gap. The second end of the second arcuate ring 19 is connected to the second end of the second arcuate ring 19 and is provided with a gap. The first locking member 20 and the second locking member 21 each include a fixing ring 161, a bolt (not shown) provided to connect the two fixing rings 161, and a nut, and a fixing ring of the first locking member 20 161 is disposed at a first end of the first curved ring 18 and a first end of the second curved ring 19, and the fixing ring 161 of the second locking member 21 is disposed at the second end of the first curved ring 18 and The second end of the second curved ring 19, the bolt is connected to the two arcuate rings through the fixing ring 161, and the position of the gap between the two arcuate rings is adjusted by adjusting the position of the nut on the screw of the bolt, and the change is made. The abutting force of the V-ring 16 to the outer cylinder 11 further adjusts the abutting force of the outer cylinder 11 against the sealing ring 15. In an embodiment, the V-ring 16 may also be formed by more than two arcuate ring connections.

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

Referring to Figures 7 and 8, the embodiment further provides a drum washing machine comprising a frame 2 and the above-mentioned washing machine inner and outer cylinder assembly 1. The stop structure on the front flange 12 is abutted against the frame 2, so that the inner and outer cylinder assembly 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 disposed on the frame 2, and an intermediate portion of the fixing piece 3 is disposed around the outer circumferential surface of the outer cylinder 11. The two ends of the fixing piece 3 are fixedly connected with the frame 2, and the fixing piece 3 is fixed. The outer cylinder 11 is pressed against the outer cylinder 11, and the outer cylinder 11 is fixed. In this embodiment, there are two fixing pieces 3, and the two fixing pieces include a first fixing piece and a second fixing piece, the first fixing piece is connected to the front end of the outer cylinder 11, and the second fixing piece is connected to the outer cylinder 11 The rear end ensures the balance of the force of the outer cylinder 11.

Claims

An inner and outer cylinder assembly of a washing machine, comprising an outer cylinder (11), a front flange (12), a rear flange (13), an outer cylinder bracket (14), a sealing ring (15) and a front flange (12) The upper stop structure, wherein the first end of the outer cylinder (11) abuts the stop structure, and the seal ring (15) is disposed on the outer cylinder (11) a second end, the outer cylinder bracket (14) and the rear flange (13), and the second end of the outer cylinder (11), the outer cylinder bracket (14) and the The rear flange (13) is in interference contact.
The inner and outer cylinder assembly of the washing machine according to claim 1, wherein a second end of the outer cylinder (11) abuts the outer cylinder bracket (14), and the inner and outer cylinder assembly of the washing machine further comprises a surrounding setting a V-ring (16) at a junction of the outer cylinder (11) and the outer cylinder bracket (14), the V-ring (16) being arranged to press the outer cylinder (11) against The sealing ring (15).
The inner and outer cylinder assembly of a washing machine according to claim 2, further comprising a first locking member (20) and a second locking member (21), the V-shaped ring (16) including two arcuate rings spaced apart The two curved rings include a first curved ring (18) and a second curved ring (19), the first end of the first curved ring (18) and the second curved ring (19) The first end is connected by the first locking member (20), and the second end of the second curved ring (19) and the second end of the second curved ring (19) pass the second locking The piece (21) is connected, and the first locking member (20) and the second locking member (21) can adjust the abutting force of the V-ring (16) to the outer cylinder (11) .
The inner and outer cylinder assembly of a washing machine according to claim 1, wherein the stopper structure is a flange (121) provided at an edge of the front flange (12), the flange (121) being a ring And extending outward in the radial direction of the front flange (12).
The inner and outer cylinder assembly of a washing machine according to claim 4, wherein an edge of the first end of the outer cylinder (11) abuts against the flange (121), and the outer cylinder (11) The abutment of the edge of the first end and the flange (121) is set to be fixed by welding.
The inner and outer cylinder assembly of a washing machine according to claim 4, wherein the flange (121) is integrally formed with the front flange (12).
The inner and outer cylinder assembly of a washing machine according to any one of claims 1 to 6, wherein a capacity is formed between the outer cylinder (11), the outer cylinder bracket (14) and the rear flange (13) The sealing ring (15) is sleeved on the rear flange (13) and adapted to the shape of the receiving cavity.
The inner and outer cylinder assembly of the washing machine according to claim 7, wherein the outer wall of the sealing ring (15) is provided with a plurality of first protrusions (151) abutting the outer cylinder (11), The inner wall of the sealing ring (15) is provided with a plurality of second protrusions (152) abutting the rear flange (13), and the outer cylinder (11) is disposed with the sealing ring (15) ) abutting to deform the first protrusion (151) and the second protrusion (152).
A drum washing machine comprising a frame (2) and an inner and outer cylinder assembly (1) of the washing machine according to any one of claims 1-8, wherein the stopping structure abuts against the frame (2).
The drum washing machine according to claim 9, further comprising a plurality of fixing pieces (3) disposed at intervals on the frame (2), the intermediate portion of the fixing piece (3) surrounding the outer cylinder ( 11) The outer peripheral surface is disposed, and both ends of the fixing piece (3) are fixedly coupled to the frame (2) such that the fixing piece (3) abuts against the outer cylinder (11).