CN110607662A

CN110607662A - Roller washing machine and spraying system thereof

Info

Publication number: CN110607662A
Application number: CN201810617338.XA
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: WO2019237934A1; JP2021526418A

Abstract

The invention belongs to the technical field of clothes treatment equipment, and particularly provides a roller washing machine and a spraying system thereof. The invention aims to solve the problem that the lowest spray hole in the existing drum washing machine with the circulating spray function is easily submerged by the washing water in the outer drum and cannot work normally. The spraying system comprises a circulating pump, a circulating water pipe and a plurality of nozzles; a water inlet of the circulating pump is communicated with the inside of the outer barrel, a water outlet of the circulating pump is respectively communicated with the plurality of nozzles through a circulating water pipe, and the circulating pump is used for pumping the washing water in the outer barrel to the plurality of nozzles; a plurality of nozzles are arranged near the front end of the outer cylinder, and the jet orifice of each nozzle points to the inner cylinder; wherein, the height of each nozzle in the vertical direction is larger than the height of the bottommost part of the edge of the outer cylinder opening of the outer cylinder. Therefore, the drum washing machine can effectively avoid the condition that the washing water in the outer drum submerges the nozzles, so that each nozzle can normally work when the drum washing machine works.

Description

Roller washing machine and spraying system thereof

Technical Field

The invention belongs to the technical field of clothes treatment equipment, and particularly provides a roller washing machine and a spraying system 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. CN204982446U, includes a body, a drum, and a tub in this order from the outside to the inside. The water containing barrel is provided with a water containing barrel frame, and the water containing barrel frame is provided with a spraying hole for spraying water flow into the roller and a flow guide mechanism for guiding the circumferential diffusion of the sprayed water flow. The water column from the spraying hole is sprayed to the guide mechanism, the width is enlarged, and the water column is adjusted to be fan-shaped and sprayed to the inner cylinder.

The drum type washing machine disclosed in patent publication No. CN204982446U has a strong cleaning ability for laundry, but has a complicated structure of the shower holes and the guide structure, and thus has a high production cost. Also, there is a case where the lowest one of the shower holes is submerged by the washing water in the outer tub, and thus the washing water cannot be normally sprayed.

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 problem that the lowest spray hole in the existing drum washing machine with the circulating spray function is easily submerged by the washing water in the outer cylinder and cannot work normally, the present invention provides a spray system of a drum washing machine, wherein the drum 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, and the spray system comprises a circulating pump, a circulating water pipe and a plurality of nozzles; a water inlet of the circulating pump is communicated into the outer barrel, a water outlet of the circulating pump is respectively communicated with the plurality of nozzles through the circulating water pipe, 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 near the front end of the outer cylinder, and the jet orifice of each nozzle is directed to the inner cylinder; wherein the height of each nozzle in the vertical direction is larger than the height of the bottommost part of the edge of the outer cylinder opening of the outer cylinder.

In a preferred technical solution of the above spraying system, a vertical distance is provided between the lowest position height of the plurality of nozzles and the lowest position of the inner side wall of the outer cylinder, and a ratio of the vertical distance to the inner diameter of the outer cylinder is less than 0.5.

In a preferred embodiment of the above spraying system, a ratio of the vertical distance to an inner diameter of the outer cylinder is less than 0.25.

In a preferred embodiment of the above spraying system, a ratio of the vertical distance to an inner diameter of the outer cylinder is equal to 0.1.

In a preferred embodiment of the above spraying system, the plurality of nozzles are disposed on a sealing window gasket of the drum washing machine, and the sealing window gasket is disposed between the box body and the outer tub.

In a preferred embodiment of the above spraying system, the spraying system further includes a plurality of semi-annular structures fixed together with or integrally formed with the sealing window gasket, and each of the semi-annular structures is disposed around one of the nozzles.

In the preferable technical scheme of the spraying system, the spraying system further comprises an annular cavity connected with the plurality of nozzles or integrally formed, and the annular cavity is respectively communicated with the plurality of nozzles and the water outlet end of the circulating water pipe.

In a preferred technical solution of the above spraying system, a mounting bracket is provided on the annular chamber, and the annular chamber is fixed 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 around an axis of the outer cylinder.

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, by setting each nozzle to have a height greater than the height of the bottommost edge of the outer opening of the outer tub in the vertical direction, the condition that the washing water in the outer tub submerges the nozzle can be effectively avoided, and each nozzle can work normally when the drum washing machine is in operation. Further, the nozzle is set to the above condition, the condition that the nozzle with a lower position hooks the clothes can be avoided as much as possible, and the user can conveniently put the clothes into the inner drum or take the clothes out of the inner drum.

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 rear elevational view of the outer barrel section of the present invention;

fig. 8 is a sectional view taken along the direction C-C in fig. 6.

List of reference numerals:

1. a box body; 2. an outer cylinder; 3. an inner barrel; 4. a door body; 5. sealing the window gasket; 51. a semi-annular structure; 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. and (4) a nozzle.

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, the outer drum of the drum washing machine of the present invention is not limited to the horizontal arrangement shown in the drawings, but the outer drum of the drum washing machine of the present invention can also be arranged obliquely, and those skilled in the art can adjust it as required to adapt to the specific application, and the adjusted technical solution will still fall into the protection 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, the annular chamber 11 is provided with a mounting bracket (not shown), by means of which the annular chamber 11 is fixed to the outer shaft 2 or to 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 (water outlet 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. 1, 4 to 8, 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, and the ejection port of each nozzle 12 is directed toward the inner tube 3. So that the plurality of nozzles 12 collectively provide a uniform flow of water to the drum 3 (as shown in figure 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. Further, the skilled person can also arrange the plurality of nozzles 12 at any position near the front end of the outer cylinder 2, for example, at the edge of the outer cylinder mouth or on the door 4, as required.

In a preferred embodiment of the present invention, each nozzle 12 is positioned at a height in the vertical direction greater than the height of the bottommost portion of the rim of the outer spout of the tub 2, so as to prevent the detergent in the tub 2 from flooding the nozzle 12. It should be appreciated by those skilled in the art that, in general, the height of the washing water in the tub 2 is not higher than the edge of the tub opening. As described in more detail below.

As shown in fig. 1, six nozzles 12 are symmetrically arranged with respect to the vertical direction. Or the six nozzles 12 may be arranged asymmetrically with respect to the vertical direction, as desired by the person skilled in the art.

As shown in fig. 7 and 8, the inner diameter of the outer cylinder 2 is d. The (two) nozzles 12 having the lowest height among the six nozzles 12 have a vertical distance H from the lowest position of the inner sidewall of the outer cylinder 2. Preferably, H/d < 0.5; more preferably, H/d < 0.25; further preferably, H/d is 0.1.

Besides, the ratio of the vertical distance H to the inner diameter d of the outer cylinder can be set to any other feasible value by those skilled in the art, for example, 0.05, 0.2, 0.4, 0.5, 0.6, 0.7, etc., as required. It is sufficient to ensure that each nozzle 12 is positioned at a height higher than the bottommost height of the rim of the outer tub opening of the outer tub 2, in particular higher than the normal level of the washing liquid in the outer tub 2, when the drum washing machine is in operation.

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, the sealing gasket 5 is provided on the inner side thereof with a plurality of semi-annular structures 51 corresponding to the number of nozzles 12. The semi-annular structures 51 are disposed around the through-holes such that each semi-annular structure 51 surrounds a respective one of the nozzles 12, preventing the nozzles 12 from catching on the clothing. It will be appreciated by those skilled in the art that the semi-annular structure 51 and the gasket 5 may be joined together in any feasible manner, such as by injection molding, welding, ultrasonic welding, etc.

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 invention also sets each nozzle 12 to be higher than the liquid level of the washing water in the outer cylinder 2 in the vertical direction, thereby avoiding the condition that the washing water in the outer cylinder 2 submerges the nozzle 12, enabling each nozzle 12 to work normally when the drum washing machine works, simultaneously avoiding the condition that the lower nozzle 12 hooks the clothes, and facilitating the user to put the clothes into the inner cylinder or take the clothes out of the inner cylinder.

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 spray system of a drum washing machine, 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 spraying system is characterized by comprising a circulating pump, a circulating water pipe and a plurality of nozzles;

a water inlet of the circulating pump is communicated into the outer barrel, a water outlet of the circulating pump is respectively communicated with the plurality of nozzles through the circulating water pipe, 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 near the front end of the outer cylinder, and the jet orifice of each nozzle is directed to the inner cylinder;

wherein the height of each nozzle in the vertical direction is larger than the height of the bottommost part of the edge of the outer cylinder opening of the outer cylinder.

2. The spraying system of a drum washing machine according to claim 1, wherein a vertical distance is provided between the lowest positioned height of the plurality of nozzles and the lowest position of the inner sidewall of the tub, and a ratio of the vertical distance to the inner diameter of the tub is less than 0.5.

3. The spraying system of a drum washing machine according to claim 2, characterized in that the ratio of the vertical distance to the inner diameter of the tub is less than 0.25.

4. The spraying system of a drum washing machine according to claim 3, characterized in that the ratio of the vertical distance to the inner diameter of the tub is equal to 0.1.

5. The spraying system of a drum washing machine according to any one of claims 1 to 4, wherein the plurality of spray nozzles are all disposed on a sealing window gasket of the drum washing machine, the sealing window gasket being disposed between the cabinet and the tub.

6. The spray system of a drum washing machine according to claim 5, characterized in that it further comprises a plurality of semi-annular structures fixed together or made in one piece with said sealing window gasket, each of said semi-annular structures being arranged around a respective one of said nozzles.

7. The spraying system of a drum washing machine according to any one of claims 1 to 4, characterized in that the spraying system further comprises an annular chamber connected with or integrally formed with the plurality of nozzles, the annular chamber being communicated with the plurality of nozzles and the water outlet end of the circulating water pipe, respectively.

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

9. A spraying system for a drum washing machine according to any one of claims 1 to 4, characterized in that the plurality of nozzles are equally spaced around the axis of the tub.

10. A drum washing machine characterized in that it comprises a spraying system according to any one of claims 1 to 9.