CN110387708A - Front-loading washing machine and its spray system - Google Patents

Abstract

The invention belongs to the field of household appliances, and specifically provides a drum washing machine and a spray system thereof. The invention aims to solve the problems of complicated installation structure and high production cost of the spray device of the existing drum washing machine with the circulating spray function. For this purpose, the drum washing machine of the present invention includes a box body, an outer cylinder and an inner cylinder arranged in sequence from the outside to the inside, and the spray system includes a circulating pump, a water outlet pipe, and an annular cavity arranged at the front end of the outer cylinder. The annular cavity is provided with a The jetting port; the circulating pump is arranged on the box body or the outer cylinder, the water inlet of the circulating pump leads into the outer cylinder, and the water outlet of the circulating pump is connected with the annular cavity through the water outlet pipe; when working, the circulating pump pumps the washing water in the outer cylinder to the annular cavity, so that the wash water is sprayed into the inner tub through the spray port. The invention has simple structure, low manufacturing cost, and can greatly improve the rinsing rate.

Description

Front-loading washing machine and its spray system

technical field

The invention belongs to the field of household appliances, and specifically provides a drum washing machine and a spray system thereof.

Background technique

The existing drum washing machine originated in Europe, and it mainly includes a box body, an outer tub and an inner tub from outside to inside. Front-loading washing machines work in a similar way to the principle of hammering the laundry. When working, the inner cylinder rotates under the drive of the drive motor. With the rotation of the inner drum, the clothes are continuously lifted and dropped in the drum, and then lifted and dropped again, doing repeated movements. Under the combined action of washing powder and water, the clothes are washed clean.

In order to improve the effect of washing and rinsing clothes with water, some drum washing machines are also provided with a circulating spray device. For example, the drum type washing machine disclosed in the patent document with publication number CN102482834B is provided with a circulation path, one end of the circulation path leads to the bottom end of the water tank (outer cylinder), and the other end of the circulation path leads to the opening of the water tank. Multiple jets at the edge. The circulation path can supply the washing water to the plurality of spray ports from the bottom end of the water tank, and then spray the washing water into the drum (inner drum) to perform circulating washing of the clothes.

Although the drum-type washing machine disclosed in the patent document with the publication number of CN102482834B has strong cleaning ability for clothes, the water tank provided with a plurality of spray ports has a complicated structure and high production cost.

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

SUMMARY OF THE INVENTION

In order to solve the above problems in the prior art, that is, in order to solve the problems of complicated installation structure and high production cost of the spray device of the existing drum washing machine with the circulating spray function, the present invention provides a spray device for the drum washing machine. A shower system, the drum washing machine includes a box body, an outer tub and an inner tub arranged in sequence from outside to inside, the spray system includes a circulating pump, a water outlet pipe, and an annular cavity arranged at the front end of the outer tub. The cavity is provided with a jetting port; the water inlet of the circulating pump leads into the outer cylinder, and the water outlet of the circulating pump is communicated with the annular cavity through the water outlet pipe; when working, the circulating pump will The wash water in the outer tub is pumped to the annular cavity, so that the wash water is sprayed into the inner tub through the spray port.

In a preferred embodiment of the above spray system, the annular cavity and the water outlet pipe are connected through a connection structure; or the annular cavity is directly connected to the water outlet pipe; or the annular cavity and the water outlet pipe Made in one piece.

In a preferred embodiment of the above-mentioned spray system, the spray port is a narrow slot structure formed on the annular cavity.

In a preferred embodiment of the above spray system, the spray port has a guide structure, and the guide structure is used to spray the washing water entering the annular cavity into the inner tub obliquely.

In a preferred embodiment of the above-mentioned spraying system, the spraying port has a spraying component, and the spraying component is used for spraying the washing water entering the annular cavity into the inner tub after forming a uniform annular water curtain.

In a preferred embodiment of the above-mentioned spray system, the annular cavity is provided with a plurality of spray ports at equal or non-equidistant intervals.

In a preferred embodiment of the above-mentioned spray system, a sealing window gasket is provided between the casing opening and the outer cylinder opening of the drum washing machine, and the annular cavity is located in an inner area of the sealing window gasket.

In a preferred embodiment of the above-mentioned spray system, the water outlet of the circulating pump is further communicated with the drain pipe of the drum washing machine; the water outlet pipe is configured with a first cutoff for selectively opening or closing the water outlet pipe a valve; the drain pipe is provided with a second shut-off valve for selectively opening or closing the drain pipe.

In a preferred embodiment of the above-mentioned spray system, the spray system further includes a three-way valve, and the water outlet of the circulating pump is selectively communicated with the water outlet pipe or the drain pipe by means of the three-way valve.

The present invention also provides a drum washing machine, including a washing machine body, and the drum washing machine further includes the above-mentioned spray system.

In the technical solution of the present invention, an annular cavity is separately provided at the front end of the outer cylinder, and a spray port is arranged on the annular cavity. It is smaller and does not need to be provided with a separate spray device, thereby greatly reducing the manufacturing cost of the washing machine. In addition, as a preferred example, the annular cavity is provided in the inner area of the sealing window gasket, so as to ensure the sealing performance of the sealing window gasket. In addition, the spray port of the present invention is provided with a guide structure or a spray assembly to achieve the spray effect of the annular waterfall water flow, which can quickly pass through the clothes, thereby greatly improving the rinsing rate.

Description of drawings

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

Fig. 1 is the sectional view of the drum washing machine of the present invention;

Fig. 2 is an enlarged view of part A in Fig. 1;

Fig. 3 is the enlarged view of B part in Fig. 1;

4 is a schematic diagram of the spray effect of the drum washing machine of the present invention.

List of reference numbers:

1. Box body; 2. Outer cylinder; 21. Front end of outer cylinder; 3. Inner cylinder; 4. Door body; 5. Sealed window gasket; 6. Drainage pump; 7. Drainage pipe; 8. Circulating pump; 9. Outlet water pipe; 10. annular cavity; 101. jet port.

Detailed ways

It should be understood by those skilled in the art that the embodiments in this section are only used to explain the technical principles of the present invention, and are not used to limit the protection scope of the present invention. For example, although the present invention is described with the injection holes having a flat structure, the injection holes of the present invention may also be injection holes of any other structure. Those skilled in the art can adjust it as needed to adapt to specific application occasions, and the adjusted technical solution will still fall within the protection scope of the present invention.

It should also be noted that, in the description of the present invention, unless otherwise expressly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it may be a fixed connection or a connectable connection. Detachable connection, or integral connection; may be mechanical connection or electrical connection; may be direct connection, or indirect connection through an intermediate medium, or internal communication between two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

As shown in FIG. 1 , the drum washing machine of the present invention mainly includes a box body 1 , an outer cylinder 2 , an inner cylinder 3 , a door body 4 , a sealing window gasket 5 , a drainage pump 6 and a drainage pipe 7 . The outer cylinder 2 is fixedly arranged in the casing 1 , the inner cylinder 3 is rotatably arranged in the outer casing 2 , and the sealing window gasket 5 is arranged between the casing 1 and the outer casing 2 . Both the drainage pump 6 and the drainage pipe 7 are arranged in the box 1, and the water inlet of the drainage pump 6 leads to the inner bottom of the outer cylinder 2, the water outlet of the drainage pump 6 is connected with one end of the drainage pipe 7, and the other side of the drainage pipe 7 is connected to the inner bottom of the outer cylinder 2. One end leads to the outside world. The drain pump 6 can drain the washing water in the outer tub 2 through the drain pipe 7 .

In addition, those skilled in the art can understand that, when each part of the drainage pipe 7 is lower than the inner bottom end of the outer cylinder 2, those skilled in the art can also omit the drainage pump 6 and replace the drainage pump 6 as required. Replaced with a shut-off valve. When the drum washing machine needs to drain water, the shut-off valve is opened, so that the washing water in the outer tub 2 is automatically drained from the drain pipe 7 under the action of its own gravity.

Continuing to refer to FIG. 1 , the front end of the box body 1 (the left side of the box body 1 in FIG. 1 ) is provided with a box body port (not marked in the figure), and the front end of the outer cylinder 2 (the left side of the outer cylinder 2 in FIG. 1 ) is provided with a The outer cylinder opening (not marked in the figure), and the front end of the inner cylinder 3 (the left side of the inner cylinder 3 in FIG. 1 ) is provided with an inner cylinder opening (not marked in the figure). One end of the sealing window gasket 5 is sealingly connected to the edge of the outer cylinder opening, and the other end of the sealing window gasket 5 is sealingly connected to the edge of the inner cylinder opening. The door body 4 is pivotally arranged on the box body 1, and when the door body 4 is closed, the box body port can be closed to prevent the washing water in the outer tub 2 from overflowing from the box body port.

As shown in Fig. 1 to Fig. 3, wherein Fig. 2 is an enlarged view of part A in Fig. 1; Fig. 3 is an enlarged view of part B in Fig. 1. The drum washing machine of the present invention also includes a spray system, which mainly includes a circulating pump 8 , a water outlet pipe 9 , and an annular cavity 10 disposed at the front end 21 of the outer tub. The annular cavity 10 is provided with a spray port 101 . The circulating pump 8 is preferably arranged in the casing 1 and is fixedly connected with the casing 1 . Alternatively, those skilled in the art can also fix the circulating pump 8 to the outer cylinder 1 as required. The water inlet of the circulating pump 8 leads to the inside of the outer cylinder 2 , and preferably, the water inlet of the circulating pump 8 is connected to the bottom end of the outer cylinder 2 through a water inlet pipe. Alternatively, those skilled in the art can also connect the water inlet pipe to any position of the outer cylinder 2 as required, provided that the water inlet pipe is located below the liquid level in the outer cylinder 2 . The water outlet of the circulating pump 8 communicates with the annular water channel 10 through the water outlet pipe 9 . When the spray system of the present invention is in operation, as shown by the arrow in FIG. 1 , the circulating pump 8 sends the washing water in the outer cylinder 2 to the annular cavity 10 , and the washing water entering the annular cavity 10 is sprayed into the interior through the spray port 101 . in barrel 3. When the inner tub 3 is running at a high speed, the water jetted from the jetting port 101 can quickly pass through the clothes and enter the outer tub 2 under the action of centrifugal force and gravity.

As an example, the annular cavity 10 of the present invention and the water outlet pipe 9 can be connected through a connection structure (such as a connecting hose, a connecting hard pipe, etc.), or can be directly connected (that is, the water outlet pipe 9 can be directly connected without the use of a connection structure. communicating with the annular cavity 10 ), the annular cavity 10 and the water outlet pipe 9 can also be made in one piece. Those skilled in the art can flexibly select an appropriate connection mode according to actual design requirements, so that the circulating pump 8 can pump the washing water into the annular cavity 10 through the water outlet pipe 9 .

2 and FIG. 3, as an example, the injection port 101 may be a slit structure opened on the annular cavity 10, and since the injection port 101 is a slit structure opened on the annular cavity 10, therefore, skilled in the art According to the actual design requirements, personnel can set a number of injection ports 101 on the annular cavity 10 at equal or non-equidistant intervals; Narrow slit structure), so that the annular water curtain spray effect can be achieved.

As an example, the spray port 101 has a guide structure (eg, the spray port 101 is provided in a slope shape), and the guide structure is used to spray the washing water entering the annular cavity 10 into the inner tub 3 obliquely. Besides, the jetting port 101 may also have a jetting assembly, which is used for spraying the washing water entering the annular cavity 10 into a uniform annular water curtain into the inner tub 3 behind the scenes. It is easily understood by those skilled in the art that the spray assembly can be reasonably designed according to the shape and size of the spray port 101 , to meet the requirement that the washing water entering the annular cavity 10 is sprayed into the inner tub 3 after forming a uniform annular water curtain.

Preferably, as shown in FIG. 1 , the annular cavity 10 of the present invention is located in the inner region of the sealing window gasket 5 . In this way, the washing water entering the annular cavity 10 can be directly sprayed into the inner cylinder 3 by means of the spray port 101, and no modification of the sealing window gasket 5 is required (for example, there is no need to provide a structure such as a through hole on the sealing window gasket 5). , so as to ensure the tightness of the sealing window gasket 5 .

Referring to FIG. 4, FIG. 4 is a schematic diagram of the spray effect of the drum washing machine of the present invention. The jet ports 101 in the figure are arranged on the annular cavity 10 at equal intervals, and the jetting effect of the fan-shaped water flow or the waterfall-shaped water flow as shown in FIG. The size and quantity of the injection ports 101 can be selected according to actual design requirements.

It should be noted that the drainage pump 6 and/or the circulation pump 8 of the present invention may be any feasible pump, for example, a gear pump, a vane pump, a peristaltic pump, a centrifugal pump, and the like.

Those skilled in the art can understand that, in another feasible embodiment of the present invention, the drain pump 6 and the circulation pump 8 can be replaced by one pump. As an example, the drain pump 6 is omitted, the water outlet of the circulating pump 8 is communicated with the water outlet pipe 9 and the drain pipe 7 respectively, and the water outlet pipe 9 is configured with a first shut-off valve for selectively opening or closing it, which is The drain pipe 7 is configured to selectively open or close its second shut-off valve. When the drum washing machine performs the spraying operation, the first shut-off valve is opened and the second shut-off valve is closed; when the drum washing machine performs the draining operation, the first shut-off valve is closed and the second shut-off valve is opened. As a second example, the drain pump 6 is omitted, and a three-way valve is configured for the water outlet of the circulating pump 8, so that the water outlet of the circulating pump 8 can selectively communicate with the water outlet pipe 9 or the drain pipe 7 through the three-way valve. In addition, those skilled in the art can also enable the three-way valve to block the communication between the circulation pump 8 and the water outlet pipe 9 and the communication between the circulation pump 8 and the drain pipe 7 at the same time as required.

As mentioned above, in the present invention, the annular cavity 10 is separately provided at the front end 21 of the outer tub, and the annular cavity 10 is provided with the jetting port 101. The jetting port 101 is preferably a slit structure opened on the annular cavity 10. The structural modification of the washing machine is small, and no separate spray device is required, thereby greatly reducing the manufacturing cost of the washing machine. In addition, as a preferred example, the annular cavity 10 is arranged in the inner area of the sealing window gasket 5 to ensure the sealing performance of the sealing window gasket 5 . In addition, the spray port 101 of the present invention is provided with a guide structure or a spray assembly to achieve the spray effect of the annular waterfall water flow, which can quickly pass through the clothes, thereby greatly improving the rinsing rate.

In addition, the present invention also provides a drum washing machine, including a washing machine body, and the above-mentioned spray system for the drum washing machine. For the specific implementation of the drum washing machine, please refer to the above description, which will not be repeated here.

So far, the technical solutions of the present invention have been described with reference to the preferred embodiments shown in the accompanying drawings, however, those skilled in the art can easily understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims (10)

1. a kind of spray system for roller washing machine, the roller washing machine include the cabinet set gradually from outside to inside, Outer cylinder and inner cylinder,

It is characterized in that, the spray system includes circulating pump, outlet pipe, the annular chamber for being set to the outer cylinder front end, it is described Jet port is provided on annular chamber；

The water inlet of the circulating pump leads in the outer cylinder, and the water outlet of the circulating pump passes through the outlet pipe and the ring The connection of shape chamber；

When work, the washing water pump in the outer cylinder is sent to the annular chamber by the circulating pump so that the washing water by The jet port is injected into the inner cylinder.

2. the spray system according to claim 1 for roller washing machine, which is characterized in that the annular chamber with it is described It is connected between outlet pipe by connection structure；Or the annular chamber is directly connected to the outlet pipe；Or the annular chamber It is made into integration with the outlet pipe.

3. the spray system according to claim 1 for roller washing machine, which is characterized in that the jet port is described The narrow slit structure opened up on annular chamber.

4. the spray system according to claim 1 for roller washing machine, which is characterized in that the jet port, which has, leads To structure, the guide frame is used to for the washing water for entering the annular chamber being obliquely ejected into the inner cylinder.

5. the spray system according to claim 1 for roller washing machine, which is characterized in that the jet port has spray Penetrate component, the ejection assemblies for the washing water that enter the annular chamber be formed after uniform annular water curtain be ejected into it is described In inner cylinder.

6. the spray system according to any one of claim 1 to 5 for roller washing machine, which is characterized in that described Equally spacedly setting or non-multiple jet ports are equally spacedly provided on annular chamber.

7. the spray system according to any one of claim 1 to 5 for roller washing machine, which is characterized in that described Hermetyic window pad is provided between the box mouth of roller washing machine and outer nozzle, the annular chamber is located at the inside of the hermetyic window pad Region.

8. the spray system according to any one of claim 1 to 5 for roller washing machine, which is characterized in that described The water outlet of circulating pump is also connected to the drainpipe of the roller washing machine；

The outlet pipe is configured with the first shut-off valve for selectively turning on or closing the outlet pipe；The drainpipe is matched It is equipped with the second shut-off valve for selectively turning on or closing the drainpipe.

9. the spray system according to any one of claim 1 to 5 for roller washing machine, which is characterized in that described Spray system further includes triple valve, the water outlet of the circulating pump by the triple valve selectively with the outlet pipe or institute State drainpipe connection.

10. a kind of roller washing machine, including washing machine body, which is characterized in that the roller washing machine further includes claim 1 To spray system described in any one of 9.