CN110387698A - Drum washing machine and its spray system - Google Patents

Abstract

The invention belongs to household appliance technical fields, specifically provide a kind of roller washing machine and its spray system.Present invention seek to address that the spray equipment mounting structure of the existing roller washing machine with circulated sprinkling function is complicated, the higher problem of production cost.Roller washing machine of the invention includes the cabinet, outer cylinder and inner cylinder set gradually from outside to inside；The spray system include circulating pump, outlet pipe and be arranged in the outer cylinder front end multiple spray tubes, the circulating pump is arranged on the outer cylinder or the cabinet, the water inlet of the circulating pump leads in the outer cylinder, the water outlet of the circulating pump be connected to respectively by the outlet pipe with the multiple spray tube, the spray tube be used for will the washing water spray from the circulating pump into the inner cylinder.Spray pipe mounting structure of the invention is simple, maintains the original structure of outer cylinder, and manufacturing cost is low.

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 a plurality of spray pipes arranged at the front end of the outer cylinder, The water inlet of the circulation pump leads into the outer cylinder, and the water outlet of the circulation pump communicates with the plurality of spray pipes respectively through the water outlet pipes, and the spray pipes are used to receive water from the circulation pump The washing water is sprayed into the inner cylinder.

In the preferred technical solution of the above-mentioned spraying system, a waterfall generating structure is provided at the end of each of the spraying pipes, and the washing water flowing out of the spraying pipes is sprayed in the form of a waterfall after passing through the waterfall generating structure. Pour into the inner barrel.

In the preferred technical solution of the above sprinkler system, the waterfall generating structure includes a V-shaped water guide rib or a figure-eight water guide rib.

In the preferred technical solution of the above sprinkler system, the waterfall generating structure further includes water retaining ribs, and the water retaining ribs are arranged at the end of the V-shaped water guiding ribs or the eight-shaped water guiding ribs away from the spray pipe .

In a preferred technical solution of the above spray system, the plurality of spray pipes are arranged at equal intervals around the circumference of the outer cylinder.

In the preferred technical solution 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 technical solution of the above sprinkler system, the sprinkler 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.

In a preferred technical solution of the above sprinkler system, the outlet pipe includes a plurality of branch pipes, and each branch pipe is connected to one of the spray pipes.

In a preferred technical solution of the above sprinkler system, the sprinkler system further includes an annular circulation pipeline, and the water outlet pipe communicates with the plurality of spray pipes through the annular circulation pipeline.

In addition, the present invention also provides a drum washing machine, which includes the spray system described in any one of the preferred technical solutions of the above spray system.

Those skilled in the art can understand that, in the preferred technical solution of the present invention, by arranging a plurality of spray pipes on the front end of the outer cylinder, and enabling each spray pipe to spray washing water into the inner cylinder, so that Compared with the drum-type washing machine disclosed in the patent document with publication number CN102482834B, the drum washing machine of the present invention has a simple installation structure of the spray pipe and does not need to modify the structure of the outer cylinder. A separate design of production molds and manufacturing processes for the outer cylinder is avoided, and the manufacturing cost of the outer cylinder is reduced.

In a preferred embodiment of the present invention, the spray pipe is fixed to the front end of the outer cylinder by welding, binding, clamping and other simple and easy methods.

Description of drawings

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

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

Fig. 2 is a side view of the outer cylinder part of the present invention;

Fig. 3 is a left side view of the outer cylinder part in Fig. 2;

Fig. 4 is a sectional view along the A-A direction of Fig. 3;

Fig. 5 is a front view of the outer cylinder part in Fig. 2;

Fig. 6 is a sectional view of part of the structure along the B-B direction in Fig. 5;

Fig. 7 is a schematic diagram of the spraying effect of the drum washing machine of the present invention.

List of reference signs:

1. Box body; 2. Outer cylinder; 3. Inner cylinder; 4. Door body; 5. Sealed window mat; 6. Drainage pump; 7. Drainage pipe; 8. Circulation pump; 9. Outlet pipe; 10. Spray Tube; 101, figure-eight water-guiding ribs; 102, water-retaining ribs.

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, the shower pipes of the present invention can also be replaced by nozzles. 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.

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.

Continuing to refer to FIG. 1 , the drum washing machine of the present invention further includes a spray system, which mainly includes a circulation pump 8 , a water outlet pipe 9 and a plurality of spray pipes 10 . 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. Alternatively, 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 a plurality of spray pipes 10 through a 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 a plurality of spraying pipes 10, and the washing water is sprayed into the interior by a plurality of spraying pipes 10. Rinse the laundry in drum 3. When the inner cylinder 3 runs at a high speed, the water sprayed from the spray pipe 10 can quickly pass through the clothes and enter the outer cylinder 2 under the action of centrifugal force and gravity.

As shown in FIGS. 2 to 5 , a plurality of spray pipes 10 are arranged on the front end of the outer tub 2 at equal intervals around the circumference of the outer tub 2 . Alternatively, those skilled in the art can also arrange a plurality of spray pipes 10 on the front end of the outer tub 2 at unequal intervals according to needs. Wherein, all the spraying pipes 10 pass through the front end of the outer tub 2 and are all sealed to the front end of the outer tub 2 to prevent the washing water in the outer tub 2 from leaking. At the same time, the connection between the spray pipe 10 and the front end of the tub 2 can also play a positioning role for the spray pipe 10 .

As for the way of connecting the spray pipe 10 and the outer barrel 2, the present invention provides the following embodiments.

In the first embodiment, the front end of the outer cylinder 2 is drilled with the same number of through holes as the plurality of shower pipes 10 . After the spray pipe 10 passes through the through hole, sealant is used to seal the annular gap between the spray pipe 10 and the through hole.

In the second embodiment, the outer cylinder 2 and the spray pipe 10 are connected by a clamp. Specifically, tighten the hoop on the front end of the outer tube 2 . The shower pipe 10 is fixedly connected to the clamp. The spray pipe 10 can be fixed to the clamp by any feasible connection method, such as binding, welding, welding and so on.

In the third embodiment, the outer cylinder 2 and the shower pipe 10 are connected by a fixing clip. Specifically, the fixing clip is tightly clamped on the edge of the outer barrel mouth, and the spray pipe 10 is fixedly connected to the fixing clip. The shower pipe 10 can be fixed to the fixing clip by any feasible connection method, such as binding, welding, welding and so on.

It should be understood by those skilled in the art that the connection modes between the spray pipe 10 and the tub 2 are not limited to the above three methods, and any other feasible connection modes can also be adopted.

Although not explicitly shown in the figure, in the first embodiment of the present invention, the outlet pipe 9 includes an annular portion that flexibly surrounds the outside of the sealing window gasket 5 so as to be connected with all the sprinkler pipes 10 . Alternatively, those skilled in the art may also set up a separate annular circulation pipeline as required, so that the water outlet pipe 9 communicates with a plurality of spray pipes 10 via the annular circulation pipeline. In the second embodiment of the present invention, the outlet pipe 9 includes a plurality of branch pipes (not shown in the figure), and each spray pipe 10 is connected to a branch pipe. Moreover, each branch pipe is a flexible pipeline, so that all the spray pipes 10 can adapt to the vibration of the sealing window gasket 5 . In addition, those skilled in the art can also make the inner diameter of the branch pipe far away from the circulation pump 8 larger than the inner diameter of the branch pipe close to the circulation pump 8 so as to make the water flows sprayed by all the spray pipes 10 substantially the same size.

As shown in FIGS. 2 to 6 , in a preferred embodiment of the present invention, each spray pipe 10 passes through the front end wall of the outer cylinder 2 and is sealedly connected with the outer cylinder 2 . Moreover, the end of each shower pipe 10 is provided with a waterfall generating structure, and the washing water flowing out from the shower pipe 10 is sprayed into the inner cylinder 3 in the form of a waterfall water flow (as shown in FIG. 7 ) after passing through the waterfall generating structure. .

As shown in FIG. 4 , the waterfall generating structure includes a figure-eight water guiding rib 101 . Wherein, those skilled in the art can set the figure-eight-shaped water-guiding rib 101 as any other feasible water-guiding rib, such as a fan-shaped water-guiding rib or a V-shaped water-guiding rib.

As shown in FIG. 6 , the waterfall generating structure further includes a water retaining rib 102 arranged at the end of the eight-shaped water guiding rib 101 away from the spray pipe 10 . Preferably, each shower pipe 10 is configured with a water retaining rib 102 . Alternatively, those skilled in the art can also configure all the shower pipes 10 with an annular water retaining rib installed at the edge of the outer cylinder mouth according to the needs. Further, the waterfall generating structure at the end of each spray pipe 10 is arranged in a flat structure, so as to increase the effect of generating waterfall water flow.

In addition, on the premise of ensuring that the clothes in the inner cylinder 3 can be sprayed, those skilled in the art can set the waterfall generating structure of the spray pipe 10 into any other feasible shape, such as a honeycomb shape, a round hole, etc. shape, triangle shape.

It should 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.

In summary, the present invention maintains the integrity of the outer cylinder 2 by arranging a plurality of spray pipes 10 on the front end of the outer cylinder 2, and enabling each spray pipe 10 to spray washing water into the inner cylinder 3. The original structure reduces the production cost of the drum washing machine. At the same time, the installation structure of the spray pipe 10 fixed to the outer cylinder 2 by means of a clamp and a fixing frame is simple and easy.

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 spray system for a drum washing machine, said drum washing machine comprising a casing, an outer cylinder and an inner cylinder arranged sequentially from outside to inside; It is characterized in that the spraying system includes a circulating pump, a water outlet pipe and a plurality of spraying pipes arranged at the front end of the outer cylinder, the water inlet of the circulating pump leads into the outer cylinder, and the circulating pump The water outlets of the water outlet are respectively communicated with the plurality of spray pipes through the water outlet pipes, and the spray pipes are used to spray the washing water from the circulation pump into the inner cylinder. 2. The spray system for drum washing machines according to claim 1, wherein a waterfall generating structure is arranged at the end of each of the spray pipes, and the washing water flowing out from the spray pipes passes through the After the waterfall structure is generated, it is sprayed into the inner cylinder in the form of waterfall water flow. 3. The spray system for a drum washing machine according to claim 2, wherein the waterfall generating structure comprises V-shaped or splayed water-guiding ribs. 4. The spray system for drum washing machines according to claim 3, characterized in that, the waterfall generating structure further includes water retaining ribs, and the water retaining ribs are arranged on the V-shaped water guiding ribs or the figure-eight The water guiding rib is far away from one end of the spray pipe. 5. The spray system for a drum washing machine according to any one of claims 1 to 4, wherein the plurality of spray pipes are arranged at equal intervals around the circumference of the outer cylinder. 6. The spray system for a drum washing machine according to claim 5, wherein the water outlet of the circulation pump is also connected to the drain pipe of the drum washing machine; The water outlet pipe is configured with a first shut-off valve for selectively opening or closing the water outlet pipe; the drain pipe is configured with a second shut-off valve for selectively opening or closing the drain pipe. 7. The spray system for drum washing machines according to claim 6, characterized in that, the spray system further comprises a three-way valve, and the water outlet of the circulating pump is selectively connected with The water outlet pipe or the drain pipe are in communication. 8. The spray system for a drum washing machine according to any one of claims 1 to 4, wherein the outlet pipe comprises a plurality of branch pipes, and each branch pipe is connected to one of the spray pipes . 9. The spray system for a drum washing machine according to any one of claims 1 to 4, characterized in that, the spray system further comprises an annular circulation pipeline, and the water outlet pipe The path communicates with the plurality of spray pipes. 10. A drum washing machine, characterized in that the drum washing machine comprises the spray system according to any one of claims 1-9.