CN110387705A - Drum 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 spraying system thereof. The invention aims to solve the problems of complicated installation structure and high production cost of the spraying device of the existing drum washing machine with the circulation spraying 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, the spray system includes a circulation pump, a water outlet pipe and an annular water retaining structure, and the annular water retaining structure is arranged on the inner wall of the outer cylinder Between the outer wall of the inner cylinder and the edge of the outer cylinder mouth and the annular water retaining structure, an annular water channel with a jet port is formed; the circulation pump is arranged on the box or the outer cylinder, and the water inlet of the circulation pump leads to the outside In the cylinder, the water outlet of the circulation pump communicates with the annular waterway through the water outlet pipe; when working, the circulation pump pumps the washing water in the outer cylinder to the annular waterway, so that the washing water is sprayed into the inner cylinder through the injection port. The invention has simple structure, low manufacturing cost and can greatly improve the rinsing rate.

Description

Drum 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 spraying system thereof.

Background technique

The existing drum washing machine originates from Europe, and it mainly includes a casing, an outer cylinder and an inner cylinder from the outside to the inside. A front-loading washing machine works in a similar way to hitting clothes with a hammer. When working, the inner cylinder rotates under the drive of the drive motor. With the rotation of the inner cylinder, the clothes are continuously lifted and dropped in the drum, and then lifted and dropped again, doing repeated motions. Under the joint 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 literature with the 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 bottom end of the water tank opening. Multiple jets on the edge. The circulation path can supply the washing water from the bottom end of the water tank to the plurality of spray outlets, and then spray it into the drum (inner cylinder) to perform circular washing on the clothes.

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

Correspondingly, a new drum washing machine is needed in the art to solve the above problems.

Contents of the invention

In order to solve the above-mentioned problems in the prior art, that is, in order to solve the problems of complex installation structure and high production cost of the spraying device of the existing drum washing machine with circulation spraying function, the present invention provides a spraying device for the drum washing machine. A shower system, the drum washing machine includes a box, an outer cylinder and an inner cylinder arranged in sequence from outside to inside, the spray system includes a circulation pump, a water outlet pipe and an annular water retaining structure, and the annular water retaining structure is arranged on the between the inner wall of the outer cylinder and the outer wall of the inner cylinder, and thus form an annular water channel with a jet port between the edge of the outer cylinder mouth and the annular water retaining structure; the water inlet of the circulation pump leads to the In the outer cylinder, the water outlet of the circulating pump communicates with the annular waterway through the outlet pipe; when working, the circulating pump pumps the washing water in the outer cylinder to the annular waterway, and the washing water is The injection port is injected into the inner cylinder.

In a preferred embodiment of the above sprinkler system, the annular water retaining structure is an annular rib provided on the inner wall of the outer cylinder.

In a preferred embodiment of the above sprinkler system, the annular water retaining structure is an annular rib provided on the outer wall of the inner cylinder.

In a preferred embodiment of the above sprinkler system, the annular water retaining structure includes an annular rib disposed on the inner wall of the outer cylinder and an annular rib disposed on the outer wall of the inner cylinder.

In a preferred embodiment of the above-mentioned spraying system, a guide structure is provided at the injection port, and the guide structure is used to make the washing water entering the annular water channel be sprayed into the inner water channel in the form of an annular waterfall flow. in the barrel.

In a preferred embodiment of the above spraying system, the flow guide structure is arranged on the edge of the outer cylinder opening.

In a preferred embodiment of the above-mentioned spraying system, a sealing window gasket is provided between the cabinet opening and the outer drum opening of the drum washing machine, and the flow guiding structure is arranged on the sealing window gasket.

In a preferred embodiment of the above-mentioned spraying system, the water outlet of the circulation pump is also connected with the drain pipe of the drum washing machine; the water outlet pipe is configured with a first stop for selectively opening or closing the water outlet pipe A valve; the drain pipe is provided with a second stop valve for selectively opening or closing the drain pipe.

In a preferred embodiment of the above spraying system, the spraying system further includes a three-way valve, and the water outlet of the circulation 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, which includes a washing machine body, and the drum washing machine also includes the above-mentioned spraying system.

In the technical solution of the present invention, an annular water channel is formed between the edge of the outer cylinder mouth and the annular water retaining structure by setting an annular water retaining structure on the inner wall of the outer cylinder and/or the outer wall of the inner cylinder. The circulating water channel is separately arranged, thereby greatly reducing the manufacturing cost of the washing machine. Moreover, the annular water channel formed by the present invention has a spray port itself, and there is no need to separately arrange a spray device to spray washing water. In addition, as a preferred example, the injection port of the present invention realizes the injection effect of the circular waterfall water flow by setting a flow guide structure, and this injection effect can quickly pass through the clothes, thereby greatly increasing the rinsing rate.

Description of drawings

Describe preferred embodiment of the present invention below with reference to accompanying drawing, in the accompanying drawing:

Fig. 1 is a cross-sectional view of Embodiment 1 of the drum washing machine of the present invention;

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

Fig. 3 is a sectional view of Embodiment 2 of the drum washing machine of the present invention;

Fig. 4 is an enlarged view of part A in Fig. 3;

Fig. 5 is a sectional view of Embodiment 3 of the drum washing machine of the present invention;

Fig. 6 is an enlarged view of part A in Fig. 5 .

List of reference signs:

1. Box body; 2. Outer cylinder; 21. The edge of the outer cylinder mouth; 3. Inner cylinder; 4. Door body; Outlet pipe; 10, annular water channel; 101, annular rib; 102, injection port; 103, diversion structure.

Detailed ways

Those skilled in the art should understand that the embodiments in this section are only used to explain the technical principle 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 a spray hole having a flat structure, the spray hole of the present invention may also be a spray hole with any other structural form. Those skilled in the art can make adjustments as needed so as to adapt to specific application occasions, and the adjusted technical solutions 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 clearly stipulated and limited, the terms "installation", "connection" and "connection" should be interpreted in a broad sense, for example, it can be a fixed connection or a flexible connection. Detachable connection, or integral connection; it can be mechanical connection or electrical connection; it can be direct connection or indirect connection through an intermediary, and it can be the internal communication of two components. Those skilled in the art can understand the specific meanings of the above terms in the present invention according to specific situations.

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

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

Continue to refer to Fig. 1, the front end of casing 1 (the left side of casing 1 in Fig. 1) is provided with casing mouth (not marked in the figure), the front end of outer cylinder 2 (left side of outer casing 2 in Fig. 1) is provided with The outer cylinder mouth (not marked in the figure), 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 mouth (not marked in the figure). One end of the sealing window gasket 5 is sealingly connected with the edge of the outer cylinder opening, and the other end of the sealing window gasket 5 is sealingly connected with 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, it can close the box body opening, preventing the washing water in the outer cylinder 2 from overflowing from the box body opening.

As shown in Figure 1, the drum washing machine of the present invention also includes a spray system, which mainly includes a circulation pump 8, a water outlet pipe 9 and an annular water retaining structure, which is arranged on the inner wall of the outer cylinder 2 and the inner cylinder Between the outer walls (such as the annular rib 101 shown in FIG. 1 ), and therefore, an annular water channel 10 with a spray port 102 is formed between the edge 21 of the outer barrel mouth and the annular rib 101 . Wherein, the circulation pump 8 is preferably arranged in the tank body 1 and fixedly connected with the tank body 1 . Or those skilled in the art can also make the circulation pump 8 fixedly connected with the outer cylinder 1 according to the needs. The water inlet of the circulation pump 8 leads to the inside of the outer cylinder 2 , preferably, the water inlet of the circulation pump 8 is connected to the bottom end of the outer cylinder 2 through a water inlet pipe. Or those skilled in the art can also connect the water inlet pipe to any position of the outer cylinder 2 under the condition that the water inlet pipe is located below the liquid level in the outer cylinder 2 as required. The water outlet of the circulating pump 8 communicates with the annular water channel 10 through the water outlet pipe 9 . When the spraying system of the present invention works, as shown by the arrow in Figure 1, the circulation pump 8 pumps the washing water in the outer cylinder 2 to the annular water channel 10, and the washing water entering the annular water channel 10 is sprayed into the inner water channel by means of the injection port 102. In barrel 3. When the inner cylinder 3 is running at a high speed, the water jetted from the injection port 102 can quickly pass through the clothes and enter the outer cylinder 2 under the action of centrifugal force and gravity.

Referring to FIG. 2 , FIG. 2 is an enlarged view of part A in FIG. 1 . As shown in FIG. 2 , in this embodiment, the annular rib 101 is arranged on the inner wall of the outer cylinder 2 . In this way, the annular water channel 10 is formed between the edge 21 of the outer cylinder mouth and the annular rib 101 , and the injection port 102 is formed between the edge 21 of the outer cylinder mouth and the inner cylinder mouth. Those skilled in the art can set the specific position of the annular rib 101 according to the actual application of the washing machine, for example, the annular rib 101 is arranged on the edge 21 near the outer cylinder mouth to reduce the inner diameter of the formed annular water channel 10, or the annular rib 101 is arranged on the edge 21 far away from the mouth of the outer cylinder to increase the inner diameter of the formed annular water channel 10 .

Preferably, a flow guide structure 103 is provided at the injection port 102, and the flow guide structure 103 is used to make the washing water entering the annular water channel 10 be sprayed into the inner cylinder 3 in the form of an annular waterfall flow. As an example, the flow guide structure 103 can be arranged on the edge 21 of the outer cylinder mouth (shown in FIG. Set on the sealing window gasket 5. In other words, those skilled in the art can flexibly set the position of the flow guide structure 10 as long as the flow guide structure 10 can realize the purpose of guiding the washing water flowing out from the annular water channel 10 .

In addition to the above-mentioned embodiments, Fig. 3 to Fig. 6 also show other embodiments of the present invention.

Referring to Fig. 3 and Fig. 4, Fig. 3 is a sectional view of Embodiment 2 of the drum washing machine of the present invention; Fig. 4 is an enlarged view of part A in Fig. 3 . In this embodiment, the difference from the first embodiment is that the annular rib 10 is arranged on the outer wall of the inner cylinder 3 .

Referring to Fig. 5 and Fig. 6, Fig. 5 is a sectional view of Embodiment 3 of the drum washing machine of the present invention; Fig. 6 is an enlarged view of part A in Fig. 5 . In this embodiment, the difference from Embodiment 1 is that both the outer wall of the inner cylinder 3 and the inner wall of the outer cylinder 2 are provided with annular ribs 10 .

It should be noted that, although the annular water-retaining structure of the present invention is described by taking the annular rib as an example, those skilled in the art can design the annular water-retaining structure as other forms of structures according to actual design requirements, such as sheet-shaped, cylindrical shape, hollow structure, etc., and even the annular water retaining structure can also be set as a special-shaped ring (such as making the distance between the annular water retaining structure and the edge of the outer cylinder mouth be a changing trend, that is, the formed annular water channel 10 has a plurality of different inner diameters ), these do not depart from the protection scope of the present invention.

It should also be noted that the drainage pump 6 and/or 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 drainage pump 6 and the circulation pump 8 can be replaced by one pump. As an example one, the drainage pump 6 is omitted, the water outlet of the circulation pump 8 is communicated with the water outlet pipe 9 and the drain pipe 7 respectively, and the first shut-off valve for selectively opening or closing the water outlet pipe 9 is configured as The drain pipe 7 is configured with a second stop valve for selectively opening or closing it. 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 drainage operation, the first shut-off valve is closed and the second shut-off valve is opened. As a second example, the drainage pump 6 is omitted, and a three-way valve is configured for the water outlet of the circulation pump 8, so that the water outlet of the circulation pump 8 can be selectively communicated with the water outlet pipe 9 or the drain pipe 7 by means of the three-way valve. In addition, those skilled in the art can also make the three-way valve 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, the present invention arranges the annular rib 101 on the inner wall of the outer cylinder 2 and/or the outer wall of the inner cylinder 3, so that an annular water channel is formed between the edge 21 of the mouth of the outer cylinder and the annular rib 101, the structure is simple, and no separate The circulating water path is set, thereby greatly reducing the manufacturing cost of the washing machine. Moreover, the annular water channel 10 formed in the present invention has the spray port 102 itself, and there is no need to separately install a spray device to spray washing water. In addition, as a preferred example, the injection port 102 of the present invention realizes the injection effect of the annular waterfall water flow by setting the flow guide structure 103 , this injection effect 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 spraying system for the drum washing machine. For the specific implementation manner of the drum washing machine, refer to the above description, which will not be repeated here.

So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings, but those skilled in the art will easily understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art can make equivalent changes or substitutions to relevant technical features, and the technical solutions after these changes or substitutions will all 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 and annular water-retaining structure,

The annular water-retaining structure is set between the outer tube inner wall and the inner tank theca, and therefore makes the outer nozzle The water annulus with jet port is formed between edge and the annular water-retaining structure；

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 water channel；

When work, the washing water pump in the outer cylinder is sent to the water annulus by the circulating pump, and the washing water is by institute Jet port is stated to be injected into the inner cylinder.

2. the spray system according to claim 1 for roller washing machine, which is characterized in that the annular water-retaining structure For the circular bar for being set to the outer tube inner wall.

3. the spray system according to claim 1 for roller washing machine, which is characterized in that the annular water-retaining structure For the circular bar for being set to the inner tank theca.

4. the spray system according to claim 1 for roller washing machine, which is characterized in that the annular water-retaining structure Including being set to the circular bar of the outer tube inner wall and being set to the circular bar of the inner tank theca.

5. the spray system according to claim 1 for roller washing machine, which is characterized in that be arranged at the jet port There is flow-guiding structure, the flow-guiding structure is used to that the washing water into the water annulus to be made to be sprayed in the form of the waterfall flow of annular It is mapped in the inner cylinder.

6. the spray system according to claim 5 for roller washing machine, which is characterized in that the flow-guiding structure setting In the edge of the outer nozzle.

7. the spray system according to claim 5 for roller washing machine, which is characterized in that the roller washing machine Hermetyic window pad is provided between box mouth and outer nozzle, the flow-guiding structure is set on the hermetyic window pad.

8. the spray system according to any one of claim 1 to 7 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 7 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.