WO2019144705A1

WO2019144705A1 - Anti-clamping structure of drum washing machine and washing machine

Info

Publication number: WO2019144705A1
Application number: PCT/CN2018/119473
Authority: WO
Inventors: 赵志强; 吕佩师
Original assignee: 青岛海尔滚筒洗衣机有限公司
Priority date: 2018-01-26
Filing date: 2018-12-06
Publication date: 2019-08-01
Also published as: CN110079975B; CN110079975A

Abstract

An anti-clamping structure of a drum washing machine and a washing machine. The anti-clamping structure comprises a window mat (3) and an outer drum front flange (21); a fixing portion (23) matching a rear connecting portion (31) of the window mat (3) is disposed at an opening (22) of the outer drum front flange (21), and the fixing portion (23) comprises a front edge (231) extending inward along the radial direction of the opening (22); a plurality of grooves (232) are formed at intervals on an inner peripheral wall of the front edge (231); and the rear connecting portion (31) is provided with a plurality of inserts (311) matching the grooves (232), and the inserts (311) are received in the grooves ( 232). By disposing the inserts (311) and the grooves (232), the inner end of the rear connecting portion (31) of the window mat (3) is firmly fixed to the fixing portion (23), thereby avoiding the problem that the window mat (3) is deformed due to the squeezing of clothes, and the deformed window mat (3) causes the clothes to be clamped between an outer drum (2) and an inner drum (1); and by fixing the inner end of the rear connecting portion (31) of the window mat (3), the window mat (3) is not easily deformed due to the squeezing of the clothes, so that the clothes are not clamped between the inner drum and outer drum (1, 2). Moreover, the advantages of firm fixing, simple structure, and easy installation are achieved.

Description

Anti-patch structure and washing machine of drum washing machine

Technical field

The invention belongs to the technical field of washing machines, and in particular relates to an anti-patch structure of a drum washing machine and a washing machine having the anti-patch structure.

Background technique

The drum washing machine is composed of a box assembly, an inner and outer tube assembly and a vibration damping system. A rubber window pad is installed between the front plate and the outer tube of the box to prevent water from flowing out of the outer tube, that is, the front end of the window pad is fixed on the front plate and the rear. The end is fixed to the outer cylinder. In order to ensure the normal rotation of the inner cylinder, the inner cylinder is prevented from rubbing against the window mat installed on the outer tub, and a certain gap is left between the inner cylinder and the window mat, and the front end of the window mat is fixed on the outer cylinder by the clamp on the outer side, but There is no fixation between the inner side of the front end of the window mat and the outer cylinder; although the gap is narrow enough, once the laundry is excessive, the laundry is extremely easy to be squeezed at the gap between the inner cylinder and the outer cylinder, and the clothing is squeezed and the window cushion is deformed, and the clothes are The gap between the inner and outer cylinders is clamped; thus the clothes rotate with the inner cylinder and rub against the window mat, causing damage to the clothes and the window mat, and friction will also generate a large noise; especially in the case of high-speed dehydration, it will be extremely A harsh rubbing sound, even an alarm or the washing machine is not working properly.

technical problem

The present invention is directed to the above-mentioned problems existing in the prior art, and provides an anti-patch structure of a drum washing machine, wherein the rear connecting portion of the window mat is fixed on the front edge of the outer cylinder to prevent deformation of the laundry window mat.

Technical solution

To achieve the above technical purpose, the present invention is implemented by the following technical solutions:

An anti-patch structure of a drum washing machine, comprising a window mat and an outer cylinder front flange, wherein a fixing portion matching the rear connecting portion of the window mat is provided at an opening of the outer cylinder front flange, The fixing portion includes a radially inwardly extending leading edge along the opening, and a plurality of grooves are spaced apart on the inner peripheral wall of the leading edge, and the rear connecting portion is provided with a plurality of matching grooves A slug that is received within the recess.

Further, the rear connecting portion includes a covering portion that is wrapped on a front side of the front edge, a bent portion that is bent rearward along an inner end of the covering portion, and is spaced apart from the bent portion and a plurality of the inserts extending outward.

Further, the inserts are formed to extend outward along the rear end of the bent portion.

Further, the fixing portion further includes a blocking portion extending outward along the front outer end of the front edge, the thickness of the blocking portion being smaller than the thickness of the leading edge.

Further, a fixing groove is formed between the blocking portion and the front side of the opening, and the rear connecting portion further includes a rearwardly bent portion along the lower end of the covering portion and the fixing groove Matching assembly slots.

Further, each of the faces of the insert block adjacent to the bent portion is provided with an arc-shaped convex retaining projection.

Further, the rear connecting portion further includes an extending edge extending radially outward at a rear end of the bent portion, and the extending edge is wrapped on a rear side of the leading edge.

Further, a positioning post that protrudes rearward is axially spaced apart on the rear side of the leading edge, and a positioning hole that matches the positioning post is formed on the extending side, and the positioning post is located in the Position the hole.

Further, the extended side has a radial dimension greater than one-half of the radial dimension of the leading edge.

Further, the window mat further includes a front connecting portion matched with the front panel of the washing machine case, a cylindrical portion extending rearward along the front connecting portion, and a pleated portion disposed between the cylindrical portion and the rear connecting portion.

Further, the rear end of the tubular portion is flush with the inner end of the rear connecting portion.

Further, one end of the pleat portion is connected to the outer side of the covering portion, and the other end is connected to the hem of the outer side of the rear end of the tubular portion.

Further, the front connecting portion includes a first fitting portion that extends obliquely outward along a front end of the tubular portion, a second fitting portion that is disposed obliquely inward along an outer end of the first fitting portion, and along the a third fitting portion of the second fitting portion extending radially outward; the first fitting portion and the second fitting portion are disposed in parallel, and the first fitting portion and the second fitting portion are formed to accommodate The receiving groove of the front plate flange.

Further, the front end of the tubular portion is further provided with an inclined rib extending obliquely forward and bent inward and backward.

Further, the inner end of the rear connecting portion is flush with the flange of the front end of the inner cylinder.

The invention further provides a washing machine having the anti-patch structure, which fixes the rear connecting portion of the window mat on the front edge of the outer cylinder to prevent deformation of the clothing pressing window mat. .

A washing machine comprises a box body, an inner tube and an outer tube disposed in the box body, and the above-mentioned anti-patch structure.

Further, the rear connecting portion of the window mat is fixed on the front edge of the outer cylinder to prevent the laundry from squeezing the deformation of the window mat.

Beneficial effect

The anti-patch structure of the drum washing machine provided by the invention is provided with the insert block and the groove, so that the inner end of the rear joint portion of the window mat is fixedly fixed with the fixing portion, thereby avoiding the deformation of the clothes, so that the window mat is deformed and deformed. The window mat causes the garment to be clamped between the outer cylinder and the inner cylinder; by fixing the inner end of the rear joint of the window mat, the window mat is not easily deformed by the clothes, so that the garment is not clamped between the inner and outer cylinders; The utility model has the advantages of simple structure and convenient installation and operation.

DRAWINGS

1 is a schematic structural view of a first embodiment of an anti-patch structure of a drum washing machine according to the present invention;

Figure 2 is a cross-sectional view of the structure taken along line A-A of Figure 1;

Figure 3 is a schematic enlarged view of the area B of Figure 2;

Figure 4 is a schematic enlarged plan view showing a section of the fixing portion of Figure 2;

Figure 5 is an enlarged schematic view showing the cross section of the window mat of Figure 2;

Figure 6 is a schematic view of the exploded structure of Figure 1;

Figure 7 is a schematic structural view of a second embodiment of the anti-patch structure of the drum washing machine of the present invention;

Figure 8 is a cross-sectional view of another position through the axis.

BEST MODE FOR CARRYING OUT THE INVENTION

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention.

In the description of the present invention, it should be noted that the orientation or positional relationship of the terms "inner", "upper", "lower", "left", "right", etc. is based on the positional relationship shown in the drawings, only It is to be understood that the invention is not to be construed as a limitation of the invention. Moreover, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

1 to 6, which is a first embodiment of the anti-patch structure of the drum washing machine of the present invention, the drum washing machine includes a box body, and an inner tube 1 and an outer tube 2 which are set in the box body, in the box A window pad 3 is disposed between the front plate and the outer tube 2 of the body, and the front flange 21 of the outer tube 2 is provided with a circular opening 22, and the front flange of the inner tube 1 inside the opening 22 is provided with an opening 22 matching ports, forming the clothes inlet of the washing machine. The window mat 3 includes a rear connecting portion 31 that matches the outer cylinder, a front connecting portion 32 that matches the front panel of the washing machine casing, a cylindrical portion 33 that extends rearward along the front connecting portion 32, and a cylindrical portion 33 that is disposed rearward and rearward. The pleated portion 34 between the connecting portions 31.

In this embodiment, the anti-patch structure of the drum washing machine includes a window pad 3 and an outer cylinder front flange 21, and a fixing portion matching the rear connecting portion 31 of the window pad 3 is provided at the opening 22 of the outer cylinder front flange 21. 23; wherein the fixing portion 23 includes a front edge 231 extending inward in the radial direction of the opening 22, a plurality of grooves 232 are spaced apart on the inner peripheral wall of the front edge 231, and the rear connecting portion 31 is provided with the groove 232 A plurality of matching inserts 311 are received, and the inserts 311 are received in the recesses 232. By providing the insert 311 and the groove 232, the inner end of the window pad rear connecting portion 31 and the fixing portion 23 are fixed firmly, so as to prevent the deformation of the clothes from causing the window pad 3 to be deformed, and the deformed window pad 3 causes the clothes to be clipped. Tightly between the outer cylinder and the inner cylinder; by fixing the inner end of the rear connecting portion 31 of the window mat 3, the window mat 3 is not easily deformed by the clothes, so that the clothes are not clamped between the inner and outer cylinders; and the fixing is firm, the structure Simple, easy to install and operate.

In the present embodiment, as shown in FIG. 4, the rear connecting portion 31 includes a covering portion 312 that is wrapped on the front side of the front edge 231, a bent portion 313 that is bent rearward along the inner end of the covering portion 312, and an interval setting. A plurality of inserts 311 extending on the bent portion 313 and extending outward. A plurality of inserts 311 extending outward are provided at intervals in the circumferential direction of the bent portion 313, and the inner ends of the rear connecting portions 31 are fixed to the leading edges by fitting the inserts 311 into the grooves 232. By providing the insert 311, the bent portion 313 is fixed to the inner end surface of the leading edge 231, which increases the stability of the fixing. On each of the faces of the inserting block 311 adjacent to the bent portion 313, arc-shaped convex retaining projections are provided, which facilitates the secure engagement of the inserting block 311 in the recess 232, thereby increasing the firmness of the fixing of the inserting block 311. The deformation of the bent portion 313 by the clothes is prevented.

In the present embodiment, as shown in FIG. 5, the fixing portion 23 further includes a blocking portion 233 extending outward along the front outer end of the leading edge 231, and the thickness of the blocking portion 233 is smaller than the thickness of the leading edge 231. A fixing groove 24 is formed between the blocking portion 233 and the front side of the opening 22, and the rear connecting portion 31 further includes a fitting groove 314 which is bent rearward along the lower end of the covering portion 312 and matches the fixing groove 24. The mounting groove 314 is located in the fixing groove 24, and is disposed in the groove of the fitting groove 314 by the annular fixing hoop to fix the rear connecting portion 31 to the outer tube 2.

In the present embodiment, as shown in FIG. 3 and FIG. 4, the rear end of the cylindrical portion 33 of the window pad 3 is flush with the inner end of the rear connecting portion 31, and the inner end of the rear connecting portion 31 and the front end of the inner cylinder 1 are flanged. 11 flush. The pleated portion 34 is outwardly convexly connected between the rear end of the tubular portion 33 and the rear connecting portion 31, and the rear end of the cylindrical portion 33 of the window pad 3 is adjacent to the inner end of the rear connecting portion 31, which is advantageous for increasing the appearance of the appearance. Sex, as well as the investment in clothes. One end of the pleated portion 34 is connected to the outer side of the covering portion 312, and the other end is connected to the leading edge of the outer folded portion 331 at the rear end of the cylindrical portion 33; the wall thickness of the pleated portion 34 is smaller than the wall thickness of the cylindrical portion 33, and the cylindrical portion 33 The wall thickness is smaller than the wall thickness of the rear connecting portion 31. By providing the flange 331, it is advantageous for the support of the rear end of the cylindrical portion 33, the flange 331 extends radially outward, or the flange 331 is disposed in parallel with the cladding portion 312, and between the flange 331 and the cladding portion 312 The pleats 34 are V-shaped, and the one end of the pleated portion 34 is connected to the outer side of the covering portion 312, which is advantageous for increasing the distance between the front and rear portions of the pleat portion 34, and is advantageous for increasing the flexibility of the pleated portion 34 being pulled. Sex, increase cushioning.

In the present embodiment, the front connecting portion 32 includes a first fitting portion 321 that extends obliquely outward along the front end of the tubular portion 33, a second fitting portion 322 that is disposed obliquely inward along the outer end of the first fitting portion 321, and along the a third fitting portion 323 extending radially outwardly from the inner end of the second fitting portion 322; wherein the first fitting portion 321 and the second fitting portion 322 are disposed in parallel, and the first fitting portion 321 and the second fitting portion 322 are formed A receiving groove for accommodating the front plate flange, and the third fitting portion 323 is fitted to the front side of the front plate. By providing the structure of the front connecting portion 32, it is advantageous to increase the fastening of the front connecting portion 32 to the front plate.

In this embodiment, the front end of the tubular portion 32 is further provided with an inclined rib 332 which extends obliquely forward and is bent inwardly and backwardly. The inclined rib 332 is used to increase the structural strength of the front connecting portion 32, and is in the presence of water. When reaching the front end of the cylindrical portion 33, it can be avoided to touch the inclined rib 332; and when the user puts the clothes into the washing machine, the inclined rib 332 may be touched, so as to avoid touching the washing machine input port. The box at the edge plays a protective role.

Embodiments of the invention

Referring to Figures 7-8, there is shown a second embodiment of the anti-patch structure of the drum washing machine of the present invention. The main difference between this embodiment and the first embodiment is that the rear connecting portion 31 is further provided. The extending edge of the rear side of the leading edge 231 is coated, and the other structure may be the same as that of the first embodiment.

In the present embodiment, the rear connecting portion 31 includes a covering portion 312 that is wrapped on the front side of the front edge 231, a bent portion 313 that is bent rearward along the inner end of the covering portion 312, and is spaced apart from the bent portion 313. And a plurality of inserts 311 extending outward. The rear connecting portion 31 further includes an extended side 315 that extends radially outward at the rear end of the bent portion 313, and the extended side 315 is wrapped around the rear side of the leading edge 231. Thus, by providing the extending edge 315, the rear side of the leading edge 231 is covered, which is advantageous for further reducing the distance between the flange 11 of the inner cylinder 1 and the outer cylinder 2, and further increasing the inner end and the fixing portion of the rear connecting portion 31. The fixing between 23 is firm.

In this embodiment, a positioning post 234 is formed on the rear side of the front edge 231, and a positioning hole 234 is formed on the extending side 315. The positioning post 234 is located in the positioning hole. . By positioning the positioning post 234 and the positioning hole, the extending edge 315 is fixed on the leading edge 231, the fixing structure is simple, the mounting operation is convenient and quick; and the height of the positioning post 234 is equal to or smaller than the thickness of the extending edge 315, so that the positioning post 234 is not convex. The extended edge 315 is out to avoid the situation where the flange 11 touches the positioning post 234. The radial extent of the extended edge 315 is greater than one-half of the radial dimension of the leading edge 231, which facilitates the attachment of the extension plate 315 to facilitate placement of the locating aperture.

The above is only the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any person skilled in the art may use the above-disclosed technical contents to change or modify the equivalent equivalent. Example. However, any simple modifications, equivalent changes and modifications made to the above embodiments in accordance with the technical spirit of the present invention are still within the scope of protection of the technical solutions of the present invention.

Claims

An anti-patch structure of a drum washing machine, comprising a window mat and an outer cylinder front flange, wherein a fixing portion matching the rear connecting portion of the window mat is provided at an opening of the front flange of the outer cylinder, and the feature thereof The fixing portion includes a front edge extending radially inward along the opening, a plurality of grooves are spaced apart on the inner peripheral wall of the front edge, and the rear connecting portion is provided with the groove Matching a plurality of inserts that are received within the recess.
The anti-patch structure according to claim 1, wherein the rear connecting portion includes a covering portion that is wrapped on a front side of the front edge, and a folding portion that is bent rearward along an inner end of the covering portion a bent portion, and a plurality of the insert blocks spaced apart from the bent portion and extending outward.
The anti-patch structure according to claim 2, wherein the insert is formed to extend outward along a rear end of the bent portion.
The anti-patch structure according to any one of claims 1 to 3, wherein the fixing portion further comprises a rib portion extending outward along a front side outer end of the front edge, the rib portion The thickness is less than the thickness of the leading edge.
The anti-patch structure according to claim 4, wherein a fixing groove is formed between the blocking portion and a front side of the opening, and the rear connecting portion further includes a lower end along the covering portion A fitting groove that is bent backward and that matches the fixing groove.
The anti-patch structure according to claim 1, wherein each of the faces of the insert adjacent to the bent portion is provided with an arc-shaped convex retaining projection.
The anti-patch structure according to claim 2, wherein the rear connecting portion further comprises an extending edge extending radially outward at a rear end of the bent portion, the extending edge covering On the back side of the leading edge.
The anti-patch structure according to claim 1, wherein a positioning post that protrudes rearward is axially spaced apart on a rear side of the leading edge, and the positioning post is opened on the extending side To the matching positioning hole, the positioning post is located in the positioning hole.
The anti-patch structure according to claim 1, wherein the window mat further comprises a front connecting portion matched with the front panel of the washing machine casing, a tubular portion extending rearward along the front connecting portion, and being disposed at the A pleated portion between the tubular portion and the rear connecting portion, the rear end of the tubular portion being flush with the inner end of the rear connecting portion.
A washing machine comprising a casing, an inner cylinder and an outer cylinder disposed in the casing, and further comprising the anti-patch structure according to any one of claims 1 to 9.