CN110607660A

CN110607660A - Roller washing machine and spraying system and sealing window gasket thereof

Info

Publication number: CN110607660A
Application number: CN201810617219.4A
Authority: CN
Inventors: 吕佩师; 许升; 赵志强; 赵新宇
Original assignee: Qingdao Haier Drum Washing Machine Co Ltd
Current assignee: Qingdao Haier Drum Washing Machine Co Ltd
Priority date: 2018-06-15
Filing date: 2018-06-15
Publication date: 2019-12-24
Also published as: WO2019237948A1

Abstract

The invention belongs to the field of household appliances, and particularly provides a roller washing machine and a spraying system and a sealing window gasket thereof. The invention aims to solve the problems of complex installation structure and higher production cost of the spraying device of the existing drum washing machine with the circulating spraying function. To this end, the spraying system of the invention comprises a circulation pump, a shielding structure and a plurality of nozzles; a water inlet of the circulating pump is communicated with the inner part of the outer barrel, a water outlet of the circulating pump is respectively communicated with the plurality of nozzles, and the circulating pump is used for pumping the washing water in the outer barrel to the plurality of nozzles; the plurality of nozzles are all arranged on the sealing window gasket, and the jet orifice of each nozzle points to the inner cylinder, so that each nozzle can jet the washing water pumped by the circulating pump into the inner cylinder; the shielding structure is arranged on the inner side of the sealing window gasket and used for shielding the end part of each nozzle. The drum washing machine adopting the spraying system not only simplifies the installation structure of the nozzle, but also keeps the original structure of the outer drum and has low manufacturing cost.

Description

Roller washing machine and spraying system and sealing window gasket thereof

Technical Field

The invention belongs to the field of household appliances, and particularly provides a roller washing machine and a spraying system and a sealing window gasket thereof.

Background

The existing drum washing machine originates from Europe and mainly comprises a box body, an outer drum and an inner drum from outside to inside. The drum washing machine operates in a manner similar to the principle of hitting clothes with a hammer. When the device works, the inner cylinder is driven by the driving motor to rotate. Along with the rotation of the inner drum, the clothes are continuously lifted and dropped in the drum, and then lifted and dropped again to do repeated movement. Under the combined action of the washing powder and the water, the clothes are washed clean.

In order to improve the effect of washing and rinsing the clothes by water flow, some drum washing machines are also provided with a circulating spraying device. A drum type washing machine, as disclosed in patent publication No. CN102482834B, has a circulation path provided therein, one end of which leads to a bottom end of a water tub (outer tub), and the other end of which leads to a plurality of discharge ports provided at an opening edge of the water tub. The circulation path can supply the washing water from the bottom end of the water tank to the plurality of spray ports, and further spray the washing water into the drum (inner drum) to circularly wash the clothes.

The drum type washing machine disclosed in patent publication No. CN102482834B has a strong cleaning ability for laundry, but the water tub provided with a plurality of discharge ports has a complicated structure and a high production cost.

Accordingly, there is a need in the art for a new drum washing machine and a spray system thereof to solve the above problems.

Disclosure of Invention

In order to solve the above problems in the prior art, that is, to solve the problems of complex installation structure and high production cost of the spray device of the existing drum washing machine with the circulating spray function, the invention provides a spray system for a drum washing machine, wherein the drum washing machine comprises a box body, an outer cylinder fixedly arranged in the box body, an inner cylinder rotatably arranged in the outer cylinder and a sealing window gasket arranged between the box body and the outer cylinder; the spraying system comprises a circulating pump, a shielding structure and a plurality of nozzles; the circulating pump is used for pumping washing water to the plurality of nozzles; the plurality of nozzles are all arranged on the sealing window gasket, and the jet orifice of each nozzle is directed to the inner barrel, so that each nozzle can jet the washing water pumped by the circulating pump into the inner barrel; the shielding structure is arranged on the inner side of the sealing window gasket and used for shielding the end part of each nozzle.

In a preferred technical solution of the above spraying system, the sealing window gasket is provided with a plurality of mounting holes, and each mounting hole accommodates one of the nozzles.

In a preferred technical solution of the above spraying system, the mounting hole is a through hole, and a diameter of the through hole is smaller than a diameter of the nozzle, so that the through hole and the nozzle are connected in an interference fit manner.

In a preferred technical solution of the above spraying system, the shielding structure includes a plurality of inverted bowl-shaped structures connected with the sealing window gasket, a cavity for accommodating the end of the nozzle is formed between the bowl-shaped structures and the sealing window gasket, and an opening corresponding to the jet orifice is further provided at one side of the bowl-shaped structures close to the inner cylinder.

In a preferred technical solution of the above spraying system, the shielding structure is an annular structure having one end connected to the sealing window gasket, a groove having an opening pointing to the inner cylinder is formed between the annular structure and the sealing window gasket, and the groove is used for accommodating the ends of the plurality of nozzles.

In the preferable technical scheme of the spraying system, a water inlet of the circulating pump is communicated with the outer barrel, and a water outlet of the circulating pump is respectively communicated with the plurality of nozzles; and/or the spraying system also comprises an annular cavity connected with the plurality of nozzles or integrally manufactured, and the annular cavity is respectively communicated with the plurality of nozzles and the water outlet of the circulating pump.

In a preferred technical solution of the above spraying system, a mounting bracket is provided on the annular chamber, and the annular chamber is fixedly connected to the outer cylinder through the mounting bracket.

In a preferred embodiment of the above spraying system, the plurality of nozzles are arranged at equal intervals along a circumferential direction of the sealing window gasket.

In addition, the invention also provides a sealing window gasket of a roller washing machine, the roller washing machine comprises a box body, an outer cylinder fixedly arranged in the box body and an inner cylinder rotatably arranged in the outer cylinder, the sealing window gasket is arranged between the box body and the outer cylinder, and is characterized in that a plurality of nozzles are arranged on the sealing window gasket, and the roller washing machine further comprises a circulating pump and a shielding structure; a water inlet of the circulating pump is communicated with the inner part of the outer barrel, a water outlet of the circulating pump is respectively communicated with the plurality of nozzles, and the circulating pump is used for pumping the washing water in the outer barrel to the plurality of nozzles; the spray opening of each nozzle is directed toward the inner tub so that each nozzle can spray the washing water pumped by the circulation pump into the inner tub; the shielding structure is arranged on the inner side of the sealing window gasket and used for shielding the end part of each nozzle.

In addition, the invention also provides a drum washing machine which comprises the spraying system in any one of the preferable technical schemes of the spraying system.

It can be understood by those skilled in the art that in the preferred embodiment of the present invention, the nozzle is disposed on the sealing window gasket, so that the drum type washing machine of the present invention has a simpler nozzle installation structure and no modification of the outer tub structure, compared to the drum type washing machine disclosed in the patent document with publication number CN 102482834B. The production die and the manufacturing process are not separately designed for the outer cylinder, and the manufacturing cost of the outer cylinder is reduced.

Furthermore, the invention also shields the end part of each nozzle through the shielding structure arranged on the inner side of the sealing window gasket, so that the sealing window gasket looks more beautiful, and simultaneously can prevent the nozzles from hooking clothes.

Drawings

Preferred embodiments of the present invention are described below with reference to the accompanying drawings, in which:

FIG. 1 is a front view of the drum washing machine of the present invention;

FIG. 2 is a cross-sectional view taken along A-A of FIG. 1;

FIG. 3 is a cross-sectional view taken along line B-B of FIG. 1;

FIG. 4 is a first side elevational view of the outer barrel section of the present invention;

FIG. 5 is a second side elevational view of the outer barrel section of the present invention;

FIG. 6 is a front elevational view of the outer barrel section of the present invention;

FIG. 7 is a cross-sectional view taken along the line C-C of FIG. 6;

FIG. 8 is an enlarged view of portion D of FIG. 7;

FIG. 9 is a schematic diagram illustrating the effect of the shielding structure of the present invention;

FIG. 10 is a side view of the nozzle of the present invention;

FIG. 11 is a cross-sectional view of a nozzle of the present invention;

FIG. 12 is a front view of the nozzle of the present invention;

FIG. 13 is a schematic view of a first spray effect of the nozzle of the present invention;

fig. 14 is a schematic diagram of a second spray effect of the nozzle of the present invention.

1. A box body; 2. an outer cylinder; 3. an inner barrel; 4. a door body; 5. sealing the window gasket; 51. a shielding structure; 511. a cavity; 512. an opening; 6. balancing weight; 7. a water outlet pipe; 8. a circulation pump; 9. a drain pipe; 10. a circulating water pipe; 11. an annular cavity; 12. a nozzle; 121. a main body; 1211. a channel; 122. a shielding portion; 123. an ejection port.

Detailed Description

It should be understood by those skilled in the art that the embodiments of the present invention are only for explaining the technical principle of the present invention, and are not intended to limit the scope of the present invention. For example, although the components in the drawings are illustrated in a certain proportional relationship, the proportional relationship is not constant, and those skilled in the art can make modifications as required to adapt to specific applications, and the modified embodiments will still fall within the scope of the present invention.

It should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; or indirectly through an intermediary agent, or may be internal to both elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

As shown in fig. 1 to 3, the drum washing machine of the present invention mainly includes a cabinet 1, an outer tub 2, an inner tub 3, a door 4, a sealing window gasket 5, a counterweight 6, a water outlet pipe 7, a circulation pump 8, a water outlet pipe 9, and a circulation water pipe 10. Wherein the outer cylinder 2 is fixedly disposed inside the cabinet 1, the inner cylinder 3 is rotatably disposed in the outer cylinder 2, and the sealing window gasket 5 is disposed between the cabinet 1 and the outer cylinder 2. The balance weight 6 is arranged on the outer cylinder 2 and used for increasing the inertia of the outer cylinder 2 and reducing the shaking amplitude of the outer cylinder 2 when the inner cylinder 3 runs.

As shown in fig. 3, the water outlet pipe 7, the circulation pump 8, the water discharge pipe 9 and the circulation water pipe 10 are provided in the case 1, and the circulation pump 8 is fixed to the case 1, or one skilled in the art can fix the circulation pump 8 to the tub 2 as needed. The circulation pump 8 comprises a water inlet and two water outlets. Wherein, the water inlet of circulating pump 8 is connected with the one end of outlet pipe 7, and the other end of outlet pipe 7 is connected with the bottom of urceolus 2, and the water inlet of circulating pump 8 and urceolus 2 are consequently communicate. One water outlet of the circulating pump 8 is connected with one end of a water drain pipe 9, and the other end of the water drain pipe 9 is communicated with the outside. The other water outlet of the circulating pump 8 is connected with one end of a circulating water pipe 10, and the other end of the circulating water pipe 10 is communicated into the outer barrel 2.

In the preferred embodiment of the present invention, the circulation pump 8 is a bidirectional rotary pump, and when the circulation pump 8 rotates forward, the circulation pump 8 pumps the washing water to the drain pipe 9; when the circulation pump 8 is reversed, the circulation pump 8 pumps the washing water to the circulation water pipe 10. In addition, the person skilled in the art can also arrange the circulation pump 8 to have only one water outlet, as required, and communicate the water outlet with the circulation water pipe 10. Then, a separate water pump or a shut-off valve is provided for the drain pipe 9, and the washing water in the outlet pipe 7 is made to flow toward the drain pipe 9 by opening the water pump or the shut-off valve.

With continued reference to fig. 3, the front end of the box body 1 (right side of the box body 1 in fig. 3) is provided with a box body opening (not shown), the front end of the outer cylinder 2 (right side of the outer cylinder 2 in fig. 3) is provided with an outer cylinder opening (not shown), and the front end of the inner cylinder 3 (right side of the inner cylinder 3 in fig. 3) is provided with an inner cylinder opening (not shown). One end of the sealing window gasket 5 is connected with the edge of the box body opening in a sealing mode, and the other end of the sealing window gasket 5 is connected with the edge of the outer cylinder opening in a sealing mode. The door 4 is pivotally provided on the cabinet 1, and the door 4 can close the cabinet opening when closed, preventing the washing water in the tub 2 from overflowing from the cabinet opening.

As shown in fig. 2 to 8, the drum washing machine of the present invention further includes a spraying system, which mainly includes a circulation pump 8, a circulation water pipe 10, an annular chamber 11, and a plurality of nozzles 12. Wherein the circulation pump 8 is as described above. The annular cavity 11 is arranged at the front end of the outer cylinder 2 and is fixedly connected with the outer cylinder 2 or the balance weight 6. In a preferred embodiment of the invention, a mounting bracket is provided on the annular chamber 11, by means of which mounting bracket the annular chamber 11 is fixed to the outer shaft 2 or the counterweight 6. It will be appreciated by those skilled in the art that the mounting bracket may be secured to the outer tub 2 or the counterweight 6 by any feasible attachment means, such as bolting, screwing, snapping, bolting, etc.

As shown in fig. 3 and 8, the annular cavity 11 is provided with a water inlet and a plurality of water outlets, the water inlet of the annular cavity 11 is communicated with one end of the circulating water pipe 10 far away from the circulating pump 8, and each water outlet of the annular cavity 11 is connected with a nozzle 12. When the circulation pump 8 is reversed, the circulation pump 8 can pump the washing water to the plurality of nozzles 12 through the circulation water pipe 10, and then the nozzles 12 spray the washing water into the tub 3. It will be understood by those skilled in the art that the nozzle 12 may be connected to the annular chamber 11 by any feasible connection, for example by injection moulding in one piece with the annular chamber 11, by means of a plug, screw, fusion, ultrasonic welding, etc.

As shown in fig. 4 and 5, a plurality of nozzles 12 are provided on the sealing window gasket 5 at equal intervals in the circumferential direction of the sealing window gasket 5 so that the plurality of nozzles 12 can collectively provide a uniform water flow to the inner tube 3 (as shown in fig. 1). Those skilled in the art will appreciate that the number of nozzles 12 may be any number, such as five, six, eight, nine, etc. Further, the plurality of nozzles 12 may be disposed on the sealing gasket 5 at unequal intervals as needed by those skilled in the art.

As shown in fig. 8, the sealing gasket 5 is provided with a plurality of through holes (not shown) corresponding to the number of the nozzles 12, and each through hole has a diameter smaller than that of the nozzle 12, so that the nozzle 12 and the sealing gasket 5 are connected together by interference fit, and thus the sealing between the nozzle 12 and the sealing gasket 5 is achieved. Furthermore, the through hole of the sealing window gasket 5 can be provided as any other mounting hole, such as a threaded hole, a splined hole, a tapered hole, a polygonal hole, etc., as required by those skilled in the art.

As shown in fig. 7 and 8, a plurality of shielding structures 51 corresponding to the number of nozzles 12 are provided on the inner side of the sealing gasket 5. The shielding structure 51 is disposed around the through hole. It will be appreciated by those skilled in the art that the shielding structure 51 and the sealing gasket 5 may be connected together in any feasible manner, such as integral injection molding, welding, ultrasonic welding, etc.

As shown in fig. 9, the shutter 51 is an inverted bowl-shaped structure that forms a cavity 511 with the gasket 5, the cavity 511 being used to receive and enclose the end of the nozzle 12. Preventing the end of the nozzle 12 from catching on the laundry when the user puts the laundry into the drum 3 or takes the laundry out of the drum 3. Further, the shielding structure 51 is further provided with an opening 512 on a side facing the inner tub 3, and the opening 512 is aligned with the injection port 123 (shown in fig. 10) of the nozzle 12 to ensure that the nozzle 12 can smoothly inject the washing water into the inner tub 3.

As shown in fig. 10 to 12, the nozzle 12 of the present invention mainly includes a main body 121, a shielding portion 122 provided at one end of the main body 121, an injection port 123 formed between the main body 121 and the shielding portion 122, and a connecting portion (not shown) provided at the other end of the main body 121. Wherein the body 121 is connected with the annular chamber 11 by a connecting portion. The body 121 is provided with a passage 1211 inside, a lower end (water inlet end) of the passage 1211 is communicated with the annular chamber 11, and an upper end (water outlet end) of the passage 1211 is communicated with the injection port 123. It will be appreciated by those skilled in the art that body 121 and shroud 122 may be connected together in any feasible manner, such as injection molding, welding, ultrasonic welding, etc. Further, the jet port 123 is flat so that the nozzle 12 can jet the fan-shaped washing water.

As shown in fig. 11, the height of the lower wall of the injection port 123 (i.e., the upper end of the body 121) is gradually increased in the injection direction of the washing water injected in the injection port 123; wherein the height is a distance from the upper end of the body 121 to the lower end of the body 121. The height of the upper wall of the injection port 123 (i.e., the side of the shielding portion 122 close to the body 121) is gradually increased in the injection direction of the washing water injected in the injection port 123; the height is a distance from the lower side (lower end surface) of the shielding portion 122 to the lower end of the main body 121.

As can be seen from fig. 11, the height difference of the lower wall of the ejection port 123 is H. In a preferred embodiment of the present invention, the upper wall and the lower wall of the injection port 123 are substantially parallel, and therefore, the height difference of the upper wall of the injection port 123 is also H. The angle between the upper wall of the ejection port 123 and the horizontal direction corresponding to the height difference H is α. The upper and lower walls of the injection port 123 are configured as described above in order to direct the injection direction of the injection port 123 toward the axis of the inner tub 3 so that the washing water can uniformly fall into the inner tub 3. Alternatively, one skilled in the art can set H and α as described above to any feasible values as desired. For example, α is set to 0 ° or 90 °, even if the ejection direction of the ejection port 123 is perpendicular or parallel to the axial direction of the main body 121.

As can be understood by those skilled in the art, the lower end surface of the shielding portion 122 may be disposed obliquely as described above, or may be disposed perpendicularly to the axial direction of the main body 121. The shielding part 122 plays a role of colliding with the washing water flowing in the passage 1211 to scatter the washing water, so that the washing water is sprayed from the spray port 123 and then is formed in a waterfall shape.

As shown in fig. 12, the junction of the main body 121 and the water guard portion 122 forms a starting end (an arc-shaped dotted line in fig. 12) of the injection port 123, the height of which gradually increases along the circumferential direction of the main body 121. Wherein the height is a distance from the start end to the lower end of the body 121.

As can be seen from fig. 12, the height difference between the highest and lowest points of the starting end is h. Here, h is present for the purpose of forming the flat ejection port 123 in fig. 12 at an angle β with the horizontal direction in fig. 12. In a preferred embodiment of the invention, 0 ° < β < 90 °.

As shown in fig. 13, when β is 0 °, a plane formed by the positions where the washing water ejected from the ejection port 123 falls is substantially perpendicular to the axis of the inner tub 3 (the chain line in fig. 13).

As shown in fig. 14, when 0 ° < β < 90 °, the plane formed by the position where the washing water ejected from the ejection port 123 falls is inclined to the axis of the inner tub 3 (the chain line in fig. 14).

Therefore, the included angle β allows the fan-shaped washing water ejected from the ejection port 123 to have a longitudinal extension of L length on the axis of the inner tub 3 when the washing water falls into the inner tub 3. Wherein L can be any feasible value, such as 3cm, 4cm, 6cm, and the like.

In summary, the drum washing machine of the present invention not only simplifies the installation structure of the nozzles 12 by disposing the nozzles 12 on the sealing window gasket 5 at equal intervals, but also maintains the original structure of the outer tub 2, reduces the production cost of the drum washing machine, and simultaneously provides the laundry in the inner tub 3 with the washing water sprayed in a ring shape as shown in fig. 1. Furthermore, the jet opening 123 of the nozzle 12 is obliquely arranged, so that the jet opening 123 has an included angle alpha and an included angle beta, and further, the nozzle 12 can not only spray the washing water to the axis of the inner barrel 3, but also can enable the washing water to longitudinally cover the inner barrel 3 along the axis of the inner barrel 3, so that the clothes in the inner barrel 3 can be sprayed better, and the washing effect of the washing machine is optimized.

In another possible embodiment of the invention, the person skilled in the art can also arrange the nozzle 12 in any possible position, as required. As an example one, a plurality of nozzles 12 are provided at equal intervals at the edge of the outer cylindrical opening. As an example, the plurality of nozzles 12 are provided on the door 4 at equal intervals.

In another possible technical solution of the present invention, a plurality of water pipes may be provided as required by those skilled in the art, so that each nozzle 12 can be individually communicated with the water outlet of the circulation pump 8 through one water pipe.

It should be noted that the combination of the above technical solutions of the present invention also falls into the protection scope of the present invention. The combination not only comprises the combination among a plurality of complete technical schemes, but also comprises the reasonable combination of partial technical characteristics in each technical scheme.

So far, the technical solutions of the present invention have been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the invention, and the technical scheme after the changes or substitutions can fall into the protection scope of the invention.

Claims

1. A spraying system of a drum washing machine, the drum washing machine comprises a box body, an outer barrel fixedly arranged in the box body, an inner barrel rotatably arranged in the outer barrel and a sealing window gasket arranged between the box body and the outer barrel,

the spraying system is characterized by comprising a circulating pump, a shielding structure and a plurality of nozzles;

the circulating pump is used for pumping washing water to the plurality of nozzles;

the plurality of nozzles are all arranged on the sealing window gasket, and the jet orifice of each nozzle is directed to the inner barrel, so that each nozzle can jet the washing water pumped by the circulating pump into the inner barrel;

the shielding structure is arranged on the inner side of the sealing window gasket and used for shielding the end part of each nozzle.

2. The spraying system of a drum washing machine according to claim 1, wherein a plurality of mounting holes are provided on the sealing window gasket, and one nozzle is received in each of the mounting holes.

3. The spraying system of a drum washing machine according to claim 2, characterized in that the mounting hole is a through hole having a diameter smaller than that of the nozzle so as to allow the through hole and the nozzle to be connected in an interference fit.

4. The spraying system of a drum washing machine according to claim 1, characterized in that the shielding structure comprises a plurality of inverted bowls connected with the sealing window gasket, a cavity for accommodating the nozzle end is formed between the bowls and the sealing window gasket, and an opening corresponding to the spraying opening is further arranged on one side of the bowl close to the inner drum.

5. The spraying system of a drum washing machine according to claim 1, wherein the shielding structure is an annular structure having one end connected to the sealing window gasket, and a groove having an opening directed toward the inner drum is formed between the annular structure and the sealing window gasket, and the groove is used for accommodating the ends of the plurality of nozzles.

6. The spraying system of a drum washing machine according to any one of claims 1 to 5, characterized in that a water inlet of the circulation pump is communicated with the outer tub, and a water outlet of the circulation pump is communicated with the plurality of nozzles, respectively; and/or the spraying system also comprises an annular cavity connected with the plurality of nozzles or integrally manufactured, and the annular cavity is respectively communicated with the plurality of nozzles and the water outlet of the circulating pump.

7. The spray system of a drum washing machine according to claim 6, characterized in that a mounting bracket is provided on the annular chamber, and the annular chamber is fixedly connected to the outer tub by the mounting bracket.

8. The spraying system of a drum washing machine according to any one of claims 1 to 5, characterized in that the plurality of nozzles are disposed at equal intervals along a circumference of the sealing window gasket.

9. A sealing window gasket of a drum washing machine, characterized in that the drum washing machine comprises a box body, an outer drum fixedly arranged in the box body and an inner drum rotatably arranged in the outer drum, the sealing window gasket is arranged between the box body and the outer drum,

the washing machine is characterized in that a plurality of nozzles are arranged on the sealing window gasket, and the drum washing machine further comprises a circulating pump and a shielding structure;

a water inlet of the circulating pump is communicated with the inner part of the outer barrel, a water outlet of the circulating pump is respectively communicated with the plurality of nozzles, and the circulating pump is used for pumping the washing water in the outer barrel to the plurality of nozzles;

the spray opening of each nozzle is directed toward the inner tub so that each nozzle can spray the washing water pumped by the circulation pump into the inner tub;

10. A drum washing machine characterized in that it comprises a spraying system according to any one of claims 1 to 8.