CN211815025U - Overflow and drainage structure of drum washing machine - Google Patents

Abstract

The utility model provides an overflow and drainage structure of a drum washing machine, which simplifies the internal structure of the washing machine so that the washing machine has a simple structure and a smaller volume. It includes an overflow passage and a drainage pipeline. The overflow passage is formed on the rear cover of the outer cylinder of the drum washing machine, and includes an overflow inlet, a connection passage and an overflow outlet. The overflow inlet is communicated with the interior of the outer cylinder rear cover. The outlet is communicated with the outside of the outer cylinder rear cover, the connection passage is communicated with the overflow inlet and the overflow outlet, the first end of the drainage pipeline is communicated with the overflow outlet, and the second end of the drainage pipeline is connected to the overflow outlet. Connected to the outside of the front-loading washing machine. The problem that the overflow pipeline occupies the inner space of the washing machine and increases the volume of the washing machine is solved.

Description

A kind of drum washing machine overflow drainage structure

technical field

The utility model relates to the technical field of household appliances, in particular to an overflow and drainage structure of a drum washing machine.

Background technique

At present, most front-loading washing machines on the market control the water level in the tub through the liquid level sensor, and there is no separate overflow pipeline. Once the control system or sensor fails, the water level in the tub is too high, which will cause the water to overflow outside the tub, which may cause potential safety hazards. , At present, when a large amount of detergent is put in the drum washing machine, high bubbles are generated in the drum during the washing process, resulting in the high bubbles being unable to be effectively discharged out of the drum and overflowing, which also has safety problems.

In order to solve the above problems, some drum washing machines are provided with separate overflow pipes, but basically the overflow pipes are externally installed, occupying the internal space of the washing machine and increasing the size of the washing machine synchronously.

Utility model content

In view of this, the utility model provides an overflow and drainage structure of a drum washing machine, which is at least used to solve the technical problem that the overflow and drainage structure of a drum washing machine takes up a large space in the prior art, specifically:

The utility model provides an overflow and drainage structure of a drum washing machine, which comprises an overflow passage and a drainage pipeline.

The overflow passage is formed on the rear cover of the outer cylinder of the drum washing machine, and includes an overflow inlet, a connecting passage and an overflow outlet. The overflow inlet is communicated with the interior of the outer cylinder rear cover, and the overflow outlet is connected to the outer cylinder rear cover. The outside is communicated, and the connection passage is communicated with the overflow inlet and the overflow outlet,

The first end of the drainage pipeline is communicated with the overflow outlet, and the second end of the drainage pipeline is communicated with the outside of the drum washing machine.

Further optionally, the overflow passage and the rear cover of the outer cylinder form an integral structure.

Further optionally, the overflow inlet is formed at the upper end of the overflow passage, and the overflow outlet is formed at the lower end of the overflow passage.

Further optionally, the connection passage includes a communication groove formed on the rear cover of the outer cylinder and a capping structure sealingly connected to the communication groove to block the communication groove.

Further optionally, the communication groove is surrounded by a rib formed on the bottom wall of the outer cylinder rear cover, the bottom wall of the outer cylinder rear cover and the side wall of the outer cylinder rear cover.

Further optionally, the capping structure is configured as a U-shaped groove structure, the capping structure is buckled to the communication groove, and the connection passage is formed between the capping structure and the communication groove.

Further optionally, the overflow inlet is configured as a through hole formed on the cover structure, and/or,

The overflow outlet is configured as a tubular structure formed on the outer cylinder rear cover and communicated with the communication groove and extending to the outside of the outer cylinder rear cover.

Further optionally, the overflow passage is configured as a circular passage, the communication groove is configured as an annular groove, and the capping structure is configured as an annular structure.

Further optionally, the drainage pipeline is communicated with the drainage main pipe of the drum washing machine.

Further optionally, the communication position between the drainage pipeline and the drainage main pipe is located on the downstream side of the drainage pump on the drainage pipeline.

The overflow passage of the overflow and drainage knot of the drum washing machine provided by the utility model forms an integral structure with the rear cover of the outer cylinder, which simplifies the pipeline structure inside the washing machine and reduces the space occupied inside the washing machine, so that the overall structure of the washing machine is simple and the volume can be smaller. . The overflow drainage pipeline can prevent the water level from overflowing to the inside of the washing machine and cause damage to the internal electrical components, and can also communicate the inner cylinder with the outside atmosphere, which plays the role of balancing the air pressure in the cylinder.

Description of drawings

The above and other objects, features and advantages of the present disclosure will become more apparent from the detailed description of example embodiments thereof with reference to the accompanying drawings. The drawings described below are only some embodiments of the present disclosure, and for those of ordinary skill in the art, other drawings can also be obtained from these drawings without creative efforts.

Fig. 1 is a schematic diagram of the explosion structure of the overflow and drainage structure of the drum washing machine of the present invention;

2 is a schematic structural diagram of the overflow passage of the overflow and drainage structure of the drum washing machine of the present invention;

Fig. 3 is a schematic diagram of the structure of a communication groove;

FIG. 4 is a schematic structural diagram of a capping structure.

In the picture:

1- Rear cover of outer cylinder; 10- Overflow passage; 11- Overflow inlet; 12- Overflow outlet; 13- Connecting groove; 14- Cover structure; 2- Drain pipeline; 3- Drain main pipe; 4- Tee connecting pipe ;5-drainage pump;6-drainage connecting pipe.

Detailed ways

In order to make the purposes, technical solutions and advantages of the embodiments of the present utility model more clear, the technical solutions in the embodiments of the present utility model will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present utility model. The embodiments described above are a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

The terms used in the embodiments of the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. As used in the embodiments of the present invention and the appended claims, the singular forms "a," "the," and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise. "Generally includes at least two, but does not exclude the case of including at least one.

It should be understood that the term "and/or" used in this document is only an association relationship to describe the associated objects, indicating that there may be three kinds of relationships, for example, A and/or B, which may indicate that A exists alone, and A and B exist at the same time. B, there are three cases of B alone. In addition, the character "/" in this document generally indicates that the related objects are an "or" relationship.

It should also be noted that the terms "comprising", "comprising" or any other variation thereof are intended to encompass non-exclusive inclusion, such that a commodity or system comprising a list of elements includes not only those elements, but also includes not explicitly listed other elements, or elements inherent to the commodity or system. Without further limitation, an element defined by the phrase "comprising a..." does not preclude the presence of additional identical elements in the article or system that includes the element.

As shown in FIGS. 1 and 2 , the overflow and drainage structure of the drum washing machine provided by the present invention includes an overflow passage 10 and a drainage pipeline 2. The overflow passage 10 is formed on the outer cylinder rear cover 1 of the drum washing machine, including an overflow inlet. 11. A connection passage and an overflow outlet 12, the overflow inlet 11 is communicated with the inside of the outer cylinder rear cover 1, the overflow outlet 12 is communicated with the outside of the outer cylinder rear cover 1, and the connection passage is connected with the overflow inlet 11 communicates with the overflow outlet 12 . Preferably, the overflow inlet 11 is formed at the upper end of the overflow passage 10 , and the overflow outlet 12 is formed at the lower end of the overflow passage 10 . When the water level in the washing machine drum reaches the overflow inlet 11, it can flow into the connection passage through the overflow inlet 11, flow to the overflow outlet 12 along the connection passage, and then flow out through the overflow outlet 12, Avoid the danger of high water level in the tank. Alternatively, when high foam is generated due to excessive detergent dosing, the foam can also be discharged through the overflow drainage structure.

The first end of the drainage pipeline 2 is connected to the overflow outlet 12, the second end of the drainage pipeline 2 is connected to the outside of the drum washing machine, and the water flowing out of the overflow channel 10 passes through the drainage pipeline 2 Flow out to the outside of the washing machine to avoid the impact of water on the internal parts of the washing machine, especially the electrical parts.

Preferably, the overflow passage 10 and the outer cylinder rear cover 1 form an integral structure, that is, the overflow passage 10 is formed on the outer cylinder rear cover 1. For example, the overflow passage 10 can be integrated with the outer cylinder rear cover 1. The cylinder rear cover 1 is integrally formed by means of injection molding or the like, or the overflow passage 10 may be fixedly arranged on the outer cylinder rear cover 1 to form an integrated structure.

Preferably, as shown in FIG. 3 and FIG. 4 , the connection passage includes a communication groove 13 formed on the rear cover 1 of the outer cylinder, and sealingly connected to the communication groove 13 to block the communication groove 13 The cover structure 14, preferably, the cover structure 14 is connected to the communication groove 13 by means of heat fusion welding, and plays the role of inner connection and sealing at the same time. That is, a part of the connection passage is integrally formed on the outer cylinder rear cover 1 , and the other part is formed separately from the outer cylinder rear cover 1 , and is then fixedly connected to the outer cylinder rear cover 1 through a sealed connection.

Specifically, in this embodiment, the communication groove 13 is formed by a rib plate formed on the bottom wall of the outer cylinder rear cover 1 , the bottom wall of the outer cylinder rear cover 1 and the outer cylinder rear cover 1 . Surrounded by side walls. Specifically, the rib is vertically arranged with the bottom wall of the outer cylinder rear cover 1 and extends along the side wall of the outer cylinder rear cover 1. The bottom wall of the outer cylinder rear cover 1, the rib and the The communication groove 13 is formed by the side wall of the outer cylinder rear cover 1 .

The capping structure 14 can be configured as a flat plate structure, which is capped on the communicating groove 13 , that is, sealingly connected with the rib plate and the side wall of the outer cylinder rear cover 1 , and forms the connecting groove with the connecting groove. connection path.

Preferably, the cover structure 14 is configured as a U-shaped groove structure, the cover structure 14 is buckled to the communication groove 13 , and the cover structure 14 and the communication groove 13 are formed between the cover structure 14 and the communication groove 13 . connection path. A U-shaped groove is formed in the capping structure 14 so that the inner space of the connecting passage formed after being capped on the communicating slot 13 is larger.

Further, the overflow inlet 11 is configured as a through hole formed on the cover structure 14, and the overflow outlet 12 is configured to be formed on the outer cylinder rear cover 1 to communicate with the communication groove 13, and to communicate with the communication groove 13. A tubular structure extending from the outside of the outer cylinder back cover 1 . The overflow inlet 11 is arranged on the cover structure 14 for easy processing, and it is also easier for water or foam to flow into the connecting passage. The overflow outlet 12 forms a tubular structure for easy connection with the drainage pipeline 2 .

Preferably, as shown in FIG. 2 , FIG. 3 , and FIG. 4 , the overflow passage 10 is configured as a circular passage, that is, the communication groove 13 is configured as a circular groove, and the cover structure 14 is configured as a circular ring Structure, the overflow inlet 11 and the overflow outlet 12 are located at two ends of the vertical diameter of the circular passage, so that water or foam can flow to the overflow outlet in two different directions after entering the overflow inlet 11 12, so that the water or foam can flow out more smoothly. Or, in other embodiments, the overflow passage 10 can also be set as a semicircular passage, or a straight passage, or any other shape, as long as water or foam can flow out.

The drainage pipe 2 is communicated with the drainage main pipe 3 of the drum washing machine. Preferably, the second end of the drainage pipe 2 is connected to the drainage main pipe 3 through a tee connection pipe 4, so that the overflow drainage can be connected with the normal drainage. The drainage does not interfere with each other, avoid blocking the drainage pipeline 2, and ensure that there is no water in the drainage pipeline 2. At the same time, this can also make the overall internal structure of the washing machine simpler, reduce the number and length of pipelines, and make full use of the existing structure of the washing machine.

Preferably, in the direction of the drainage flow, the communication position between the drainage pipeline 2 and the drainage main pipe 3 is located on the downstream side of the drainage pump 5 on the drainage pipeline 2, so that the water flowing out of the overflow channel 10 can be directly The water is discharged to the outside of the washing machine, and on the upstream side of the drain pump 5, the drain pump 5 communicates with the drain port of the washing machine through a drain connection pipe 6. When there is water overflow, the overflow passage 10 can directly communicate with the outside through the drainage pipeline 2 and the drainage main pipe 3, so that the inner cylinder can be communicated with the outside atmosphere, the air pressure in the cylinder can be balanced, and the pressure in the cylinder can be avoided from being too high. Causes abnormal intake and drainage.

The overflow passage of the overflow and drainage knot of the drum washing machine provided by the utility model forms an integral structure with the rear cover of the outer cylinder, which simplifies the pipeline structure inside the washing machine and reduces the space occupied inside the washing machine, so that the overall structure of the washing machine is simple and the volume can be smaller. . The overflow drainage pipeline can prevent the water level from overflowing to the inside of the washing machine and cause damage to the internal electrical components, and can also communicate the inner cylinder with the outside atmosphere, which plays the role of balancing the air pressure in the cylinder. At the same time, the drainage pipeline is connected to the drainage main pipe, which makes full use of the existing structure of the washing machine, does not affect the normal drainage, and further simplifies the overall structure of the washing machine.

Exemplary embodiments of the present disclosure have been specifically shown and described above. It should be understood that this disclosure is not limited to the details of construction, arrangements, or implementations described herein; on the contrary, this disclosure is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.

Claims (10)

1. An overflow and drainage structure for a drum washing machine, characterized in that it comprises an overflow passage and a drainage pipeline, The overflow passage is formed on the rear cover of the outer cylinder of the drum washing machine, and includes an overflow inlet, a connecting passage and an overflow outlet. The overflow inlet is communicated with the interior of the outer cylinder rear cover, and the overflow outlet is connected to the outer cylinder rear cover. The outside is communicated, and the connection passage is communicated with the overflow inlet and the overflow outlet, The first end of the drainage pipeline is communicated with the overflow outlet, and the second end of the drainage pipeline is communicated with the outside of the drum washing machine. 2 . The overflow and drainage structure of a drum washing machine according to claim 1 , wherein the overflow passage and the rear cover of the outer cylinder form an integral structure. 3 . 3 . The overflow and drainage structure of a drum washing machine according to claim 1 , wherein the overflow inlet is formed at the upper end of the overflow passage, and the overflow outlet is formed at the lower end of the overflow passage. 4 . 4 . The overflow and drainage structure of a front-loading washing machine according to claim 1 , wherein the connection passage comprises a communication groove formed on the rear cover of the outer tub, and a connection to the communication groove at a place that is sealed and connected to the communication groove. 5 . Closing structure for sealing. 5 . The overflow and drainage structure of the front-loading washing machine according to claim 4 , wherein the communication groove is composed of a rib formed on the bottom wall of the rear cover of the outer cylinder, the bottom wall of the rear cover of the outer cylinder, and the bottom wall of the rear cover of the outer cylinder. The side wall of the rear cover of the outer cylinder is enclosed. 6 . The overflow and drainage structure of a front-loading washing machine according to claim 4 , wherein the cover structure is configured as a U-shaped groove structure, the cover structure is fastened to the communication groove, and the cover structure is closed when the cover is closed. 7 . The connection passage is formed between the structure and the communication groove. 7. The overflow and drainage structure of a drum washing machine according to claim 4, wherein the overflow inlet is configured as a through hole formed on the cover structure; And/or the overflow outlet is configured as a tubular structure formed on the rear cover of the outer cylinder and communicated with the communication groove and extending to the outside of the rear cover of the outer cylinder. 8. The overflow and drainage structure of a drum washing machine according to any one of claims 4-7, wherein the overflow passage is configured as a circular passage, the communication groove is configured as a circular groove, and the cover structure is configured as a circular groove. Constructed as a circular ring structure. 9 . The overflow and drainage structure of a drum washing machine according to claim 1 , wherein the drainage pipeline is communicated with the drainage main pipe of the drum washing machine, and the drainage pipeline is connected to the drainage main pipe. 10 . The communication position is located on the downstream side of the drain pump on the drain line. 10. A drum washing machine, which has the overflow and drainage structure of the drum washing machine according to any one of claims 1-9.

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