CN211522598U - Overflow protection device and washing machine - Google Patents

Abstract

The utility model provides an overflow protection device and washing machine. The overflow protection device includes: the water containing barrel is provided with an overflow hole, and the position of the overflow hole is not lower than the rated water level of the water containing barrel; the overflow protection mechanism is communicated with the overflow hole and is suitable for discharging liquid overflowing from the overflow hole in the water bucket; a siphon structure is also arranged in the overflow protection mechanism. Through adopting the overflow protection device of this application, when the machine breaks down and leads to intaking to be more than, the water in the ladle can discharge to the sewer through overflow channel, and can not cause the overflow phenomenon, has played effectual mechanical type overflow guard action, can not become invalid because of the electric part trouble, can effectively protect user's family property safety. The siphon structure can prevent sewage in external drainage channels such as a sewer from flowing back into the water containing barrel.

Description

Overflow protection device and washing machine

technical field

The utility model relates to the technical field of washing machines, in particular to an overflow protection device and a washing machine including the overflow protection device.

Background technique

At present, during the use of products containing water such as washing machines, there will be a phenomenon of continuous water inflow due to machine failures. After the overflow, it is often not discovered by the user, which will damage the safety of the user's family property and cause huge losses to the user.

Utility model content

In order to solve at least one of the above technical problems, one object of the present invention is to provide an overflow protection device.

Another object of the present invention is to provide a washing machine including the above-mentioned overflow protection device.

In order to achieve the above purpose, the technical solution of the first aspect of the present invention provides an overflow protection device, comprising: a water bucket, the water bucket is provided with an overflow hole, and the position of the overflow hole is not lower than the The rated water level of the tub; an overflow protection mechanism, the overflow protection mechanism communicates with the overflow hole and is suitable for discharging the liquid overflowed from the overflow hole in the tub; the overflow protection mechanism There is also a siphon structure.

In the overflow protection device provided by the technical solution of the first aspect of the present utility model, an overflow hole is added on the tub, and an overflow protection mechanism is configured. Since the position of the overflow hole is not lower than the rated water level of the tub, it is also That is to say, the overflow hole is located at or above the maximum water level of the bucket. When the water level in the bucket reaches the overflow hole, it can be discharged through the overflow hole. The flow hole only needs to be connected to the external drainage channel, so the overflowed water can be discharged to the external drainage channel, and the overflow phenomenon can be effectively prevented. Therefore, for products containing water such as washing machines, by using the overflow protection device of the present application, when the machine malfunctions and causes water to continue to enter, the water in the bucket can be discharged to the sewer through the overflow hole without causing overflow. It plays an effective mechanical overflow protection role, and it will not fail due to the failure of electrical parts, which can effectively protect the safety of the user's family property. At the same time, there is also a siphon structure in the overflow protection mechanism. On the one hand, the water overflowing into the siphon structure is drained and discharged through the siphon principle, and the water in the tub is continuously discharged from the overflow hole in time without external force. ; On the other hand, it can prevent the sewage in the external drainage channels such as sewers from being poured into the bucket, and cause pollution to the environment in the bucket, thereby improving the reliability of the product, and at the same time, it can also play the role of liquid seal, Prevent the odor in the sewer from overflowing.

In addition, the overflow protection device in the above-mentioned technical solution provided by the present invention may also have the following additional technical features:

In the above technical solution, the overflow protection mechanism includes an overflow pipe, the overflow pipe defines an overflow channel, one end of the overflow channel is communicated with the overflow hole, and the other end of the overflow channel is in communication with the overflow hole. One end communicates with the outside world.

The setting of the overflow pipe is convenient for the connection between the overflow hole and the external sewer pipe, without the need for the user to configure additional pipes, and it is convenient to reasonably design the position, shape and size of the overflow channel according to the product requirements, so as to optimize the overflow protection performance.

In the above technical solution, the siphon structure includes: a U-shaped part, the U-shaped part is formed by at least part of the inner wall surface of the overflow pipe, and the U-shaped part surrounds a water storage tank; One end of the partition plate is connected with the inner wall surface of the overflow channel, and the other end is formed as a free end and is inserted downward into the middle part of the water storage tank.

The siphon structure includes a U-shaped part, and the U-shaped part is surrounded by a water storage tank, so that the sewage in the sewer can be stored in the storage tank when it is poured back, and cannot directly enter the bucket, so as to prevent backflow. At the same time, the U-shaped portion can be realized by adding an arc-shaped plate in the overflow channel, or by bending and deforming the overflow channel itself. The structure is relatively simple and easy to realize, which is conducive to reducing costs. In addition, the U-shaped portion is formed by at least part of the inner wall surface of the overflow pipe, that is to say, the U-shaped portion can be formed by using the structure of the overflow pipe itself without additional components, thereby reducing the number of parts.

The siphon structure also includes a partition, one end of the partition is connected with the inner wall surface of the overflow channel, and the other end is formed as a free end and is inserted into the middle of the water storage tank downward, so that the space between the partition and the side wall and bottom wall of the water storage tank is uniform. There is a water passage space. The water overflowing from the bucket first enters the water storage tank, and the liquid level of the water passage space on both sides is divided by the partition plate. When the water level in the water storage tank reaches a critical level, the water in the The side passing water space flows out of the water storage tank into the overflow channel and is discharged to the outside world. Due to the gravity and air pressure of the liquid, the water exceeding the rated water level in the water tub is continuously drained into the water storage tank and discharged, and there is no need to set up a separate power structure. In addition, when the bucket does not overflow, some of the water stored in the water passage space on both sides can act as a liquid seal to prevent the odor overflowing from the sewer from entering the bucket; The water can be discharged in time, and at the same time, it can play a certain blocking effect on the backflow water, thereby improving the anti-backflow effect.

In the above technical solution, the channel length between the U-shaped portion and the overflow hole is smaller than the channel length between the U-shaped portion and the end of the overflow channel that communicates with the external environment.

The length of the channel between the U-shaped part and the overflow hole is less than the length of the channel between the U-shaped part and the end of the overflow channel that communicates with the external environment, then the U-shaped part is relatively close to the overflow hole, so the sewage in the sewer needs to pass through a relatively long distance. It takes a long path to reach the U-shaped part, which is conducive to reducing the amount of sewage entering the water storage tank, thereby further improving the anti-backflow effect.

In any of the above technical solutions, the end of the overflow channel connected to the overflow hole is located at the highest part of the overflow channel; and/or the end of the overflow channel away from the overflow hole is located at the top of the overflow channel The lowest point of the overflow channel.

One end of the overflow channel connected to the overflow hole is located at the highest point of the overflow channel, so that the water overflowing from the bucket can be quickly and automatically discharged to the overflow channel under the action of gravity, thereby improving the overflow protection effect.

The end of the overflow channel away from the overflow hole is located at the lowest part of the overflow channel, so that the water in the overflow channel can be quickly and automatically discharged to the external drainage channel under the action of gravity, thereby improving the overflow protection effect.

In the above technical solution, the overflow protection mechanism further comprises: a first adapter pipe, one end of the first adapter pipe is communicated with an end of the overflow pipe away from the overflow hole; and a drain joint, the The drain joint has a first port, a second port and a third port, the first port is communicated with the other end of the first adapter pipe, the second port is communicated with the drain pipe of the tub, and the first port is communicated with the drain pipe of the tub. The three ports communicate with the external environment.

The overflow protection mechanism also includes a first adapter pipe and a drain joint, the first adapter pipe is connected to the overflow pipe and the first port of the drainage joint, the second port of the drainage joint is connected to the drainage pipe of the tub, and the third port of the drainage joint is communicated with external environment. In this way, both the overflow pipe and the drain pipe drain the water through the third port of the drain joint. Therefore, when installing a product containing water such as a washing machine, the third port of the drain joint can be directly communicated with the external drainage channel. Compared with the way in which the drain pipe and the overflow channel are respectively connected to the external drainage channel, this solution is beneficial to reduce the requirements for the installation environment and reduce the difficulty of installation.

In the above technical solution, a sealing ring is provided between the overflow pipe and the overflow hole.

A sealing ring is arranged between the overflow pipe and the overflow hole, which can improve the sealing performance between the overflow pipe and the overflow hole and prevent water seepage.

In any of the above technical solutions, the water tub is provided with a drain hole, the drain hole is connected with a drain valve, and the drain valve is connected with a pressure switch for detecting liquid pressure.

The water bucket is provided with a drain hole, the drain hole is connected with a drain valve, and the drain valve is connected with a pressure switch. The pressure switch is suitable for electrical connection with the controller of water-containing products such as washing machines. Start and stop to prevent overflow, which also plays the role of overflow protection. When the pressure switch fails or fails, it can also prevent overflow through the mechanical overflow protection function of the overflow protection mechanism, thus playing the role of double overflow protection, which can effectively improve the overflow protection effect.

In the above technical solution, the drain valve has a fourth port, a fifth port and a sixth port, the fourth port is connected to the drain hole through a second adapter pipe, and the fifth port is connected to the water tub. A drain pipe, the sixth port is an emergency drain port, and the pressure switch is connected to the second adapter pipe.

The fourth port of the drain valve is connected to the drain hole of the water tub through the second adapter tube, so that the model and position of the drain valve can be reasonably selected according to needs. The fifth port of the drain valve is connected to the drain pipe of the tub, and the water can be drained to the drain channel of the external environment through the drain pipe. The pressure switch is connected to the second transfer nozzle, which is convenient for pressure detection and does not affect the structure of the drain valve, which is beneficial to simplifying the structure of the drain valve. The sixth port of the drain valve is an emergency drain port, which is opened in an emergency state to achieve drainage and play a protective role.

The technical solution of the second aspect of the present invention provides a washing machine, comprising: a casing; and the overflow protection device according to any one of the technical solutions of the first aspect, which is connected to the casing, and the overflow protection device is connected to the casing. The tub of the flow protection device is located within the cabinet.

Since the washing machine provided by the technical solution of the second aspect of the present invention includes the overflow protection device described in any one of the technical solutions of the first aspect, it has all the beneficial effects of any of the above-mentioned technical solutions, and will not be repeated here. Repeat.

Additional aspects and advantages of the present invention will become apparent in the following section of the description, or learned by practice of the present invention.

Description of drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of embodiments in conjunction with the accompanying drawings, wherein:

1 is a schematic diagram of the exploded structure of the overflow protection device according to some embodiments of the present invention;

Fig. 2 is the sectional structure schematic diagram after the overflow protection device shown in Fig. 1 is assembled;

Fig. 3 is the enlarged structural representation of A part in Fig. 2;

4 is a schematic block diagram of a washing machine according to some embodiments of the present invention.

Wherein, the corresponding relationship between the reference numerals and the component names in Fig. 1 to Fig. 4 is:

100 overflow protection device, 1 bucket, 11 overflow hole, 12 connecting column, 2 overflow protection mechanism, 21 overflow pipe, 211 U-shaped part, 212 water storage tank, 213 partition plate, 214 connecting hole, 215 overflow channel , 216 connecting plate, 22 first adapter, 23 drain connector, 231 first port, 232 second port, 233 third port, 24 sealing ring, 3 drain valve, 31 fourth port, 32 fifth port, 33 first port Six ports, 4 second transfer pipes, 5 drain pipes, 6 pressure switches, 7 clamps, 200 washing machines, 202 cabinets.

Detailed ways

In order to be able to understand the above-mentioned objects, features and advantages of the present invention more clearly, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features in the embodiments may be combined with each other in the case of no conflict.

In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described here. Therefore, the protection scope of the present invention is not limited by the following Limitations of the specific embodiments disclosed.

The overflow protection device and the washing machine according to some embodiments of the present invention will be described below with reference to FIGS. 1 to 4 .

The overflow protection device 100 provided by the embodiment of the first aspect of the present invention, as shown in FIG. 1 , includes: a water tub 1 and an overflow protection device 100 .

Specifically, the tub 1 is provided with an overflow hole 11 . As shown in FIGS. 1 and 2 , the position of the overflow hole 11 is not lower than the rated water level of the tub 1 .

The overflow protection mechanism 2 communicates with the overflow hole 11 and is suitable for discharging the liquid overflowing from the overflow hole 11 in the tub 1 .

The overflow protection mechanism is also provided with a siphon structure.

In the overflow protection device 100 provided by the embodiment of the first aspect of the present invention, an overflow hole 11 is added on the tub 1, and an overflow protection mechanism 2 is configured. Since the position of the overflow hole 11 is not lower than the tub The rated water level of 1, that is to say, the overflow hole 11 is located at the maximum water level of the bucket 1 or higher than the maximum water level of the bucket 1, then when the water level in the bucket 1 reaches the overflow hole 11, it can pass the overflow. Hole 11 Discharge When installing the machine, it is only necessary to connect the overflow hole 11 to an external drainage channel (such as a sewer), so the overflowing water can be discharged to the external drainage channel, effectively preventing overflow.

Therefore, for products containing water such as the washing machine 200, by using the overflow protection device 100 of the present application, when the machine malfunctions and the water inflow does not stop, the water in the tub 1 can be discharged to the sewer through the overflow hole 11, and will not Causes overflow phenomenon, plays an effective mechanical overflow protection role, will not fail due to failure of electrical parts, and can effectively protect the safety of users' family property.

At the same time, the overflow protection mechanism 2 is also provided with a siphon structure. On the one hand, the water overflowing into the siphon structure is drained and discharged through the siphon principle, and the water in the bucket is continuously discharged from the overflow hole in time without external force. On the other hand, it can prevent the sewage in the external drainage channels such as sewers from being poured into the tub 1 and cause pollution to the environment in the tub 1, thereby improving the reliability of the product, and at the same time, it can also act as a liquid seal. The function of preventing the odor in the sewer from overflowing.

Further, the overflow protection mechanism includes an overflow pipe 21 , as shown in FIG. 1 and FIG. 2 . The overflow pipe 21 defines an overflow channel 215 , one end of the overflow channel 215 communicates with the overflow hole 11 , and the other end of the overflow channel 215 communicates with the outside.

The arrangement of the overflow pipe 21 facilitates the connection between the overflow hole 11 and the external sewer pipe, without the need for additional pipes by the user, and facilitates the rational design of the position, shape and size of the overflow channel 215 according to product requirements to optimize the overflow protection performance.

In one embodiment of the present invention, the siphon structure includes a U-shaped portion 211 , as shown in FIG. 3 . The U-shaped portion 211 is formed by at least part of the inner wall surface of the overflow pipe 21 , and the U-shaped portion 211 surrounds a water storage groove 212 , as shown in FIG. 3 .

The siphon structure includes a U-shaped portion 211, and the U-shaped portion 211 surrounds a water storage tank 212, so that the sewage in the sewer can be stored in the water storage tank 212 when it is poured back, and cannot directly enter the tub 1, thereby preventing backflow. At the same time, the U-shaped portion 211 can be realized by adding an arc-shaped plate in the overflow channel 215, or by bending and deforming the overflow channel 215 itself.

In addition, the U-shaped portion 211 is formed by at least part of the inner wall surface of the overflow pipe 21. Specifically, the U-shaped portion is formed by bending and extending from the connection between the overflow pipe 21 and the overflow port, that is to say, the overflow pipe 21 itself can be used. structure to form the U-shaped portion 211 without additionally disposing other components, thereby reducing the number of components.

Further, the siphon structure further includes a partition 213, as shown in FIG. 3 . One end of the partition plate 213 is connected to the inner wall surface of the overflow channel 215 , and the other end is inserted downward into the middle of the water storage tank 212 , as shown in FIG. 3 .

The siphon structure also includes a partition plate 213, one end of the partition plate 213 is connected to the inner wall surface of the overflow channel 215, and the other end of the partition plate 213 is formed as a free end and is inserted downward into the middle of the water storage tank 212, then the partition plate 213 is connected to the water storage tank. There is a water passage space between the side wall and the bottom wall of the 212 to ensure that the overflowing water can be discharged in time, and at the same time, it can play a certain blocking effect on the water poured back, thereby improving the anti backflow effect.

Further, the channel length between the U-shaped portion 211 and the overflow hole 11 is smaller than the channel length between the U-shaped portion 211 and one end of the overflow channel 215 communicating with the external environment, as shown in FIG. 2 .

The length of the channel between the U-shaped portion 211 and the overflow hole 11 is less than the length of the channel between the U-shaped portion 211 and the end of the overflow channel 215 that communicates with the external environment, so the U-shaped portion 211 is relatively close to the overflow hole 11, so the sewer The sewage inside needs to go through a long path to reach the U-shaped part 211, which is beneficial to reduce the amount of sewage entering the water storage tank 212, thereby further improving the anti-backflow effect.

In any of the above embodiments, one end of the overflow channel 215 connected to the overflow hole 11 is located at the highest position of the overflow channel 215 , as shown in FIG. 2 .

Further, one end of the overflow channel 215 away from the overflow hole 11 is located at the lowest position of the overflow channel 215 , as shown in FIG. 2 .

One end of the overflow channel 215 connected to the overflow hole 11 is located at the highest point of the overflow channel 215, so that the water overflowing from the tub 1 can be quickly and automatically discharged to the overflow channel 215 under the action of gravity, thereby improving the overflow protection effect.

The end of the overflow channel 215 away from the overflow hole 11 is located at the lowest part of the overflow channel 215, so that the water in the overflow channel 215 can be quickly and automatically discharged to the external drainage channel under the action of gravity, thereby improving the overflow protection effect.

Wherein, the overflow pipe 21 and the tub 1 can be fixedly connected by fasteners, welding, fixing with a clamp 7, integral molding, etc., to ensure the reliability of the connection between the overflow pipe 21 and the tub 1 .

For example, the water tub 1 is provided with a connecting column 12, the overflow pipe 21 is provided with a connecting plate 216, the connecting plate 216 is provided with a connecting hole 214, and the screw is fixedly connected to the connecting column 12 through the connecting hole 214 to realize the overflow pipe 21. Fixed connection to tub 1.

Further, the overflow protection mechanism 2 further includes: a first adapter pipe 22 and a drain joint 23 , as shown in FIG. 1 .

Wherein, one end of the first adapter pipe 22 is communicated with one end of the overflow pipe 21 away from the overflow hole 11 . The drain joint 23 has a first port 231, a second port 232 and a third port 233, as shown in FIG. 1 . The first port 231 communicates with the other end of the first adapter tube 22 , the second port 232 communicates with the drain pipe 5 of the tub 1 , and the third port 233 communicates with the external environment.

In this way, both the overflow pipe 21 and the drain pipe 5 drain water to the outside through the third port 233 of the drain joint 23. Therefore, when installing a product containing water such as the washing machine 200, the third port 233 of the drain joint 23 is directly connected to the external drainage channel ( It can be connected to the sewer).

Compared with the way in which the drain pipe 5 and the overflow channel 215 are respectively connected to the external drainage channel, this solution is beneficial to reduce the requirements on the installation environment and reduce the difficulty of installation.

Among them, the first transfer pipe 22 is a pulsator pipe, which has a certain flexible deformation ability, which is convenient for rationally arranging the position of the drainage joint 23 according to the needs, so as to optimize the structure of the product. The first adapter pipe 22 and the drain joint 23 are locked by the clamp 7 .

Further, a sealing ring 24 is provided between the overflow pipe 21 and the overflow hole 11 , as shown in FIG. 1 .

A sealing ring 24 is provided between the overflow pipe 21 and the overflow hole 11 , which can improve the sealing performance between the overflow pipe 21 and the overflow hole 11 and prevent water seepage.

In some embodiments of the present invention, further, the tub 1 is provided with a drainage hole. The drain hole is connected with a drain valve 3, as shown in Figure 1. The drain valve 3 is connected with a pressure switch 6 for detecting liquid pressure, as shown in FIGS. 2 and 3 .

The water tub 1 is provided with a drain hole, the drain hole is connected with a drain valve 3, the drain valve 3 is connected with a pressure switch 6, and the pressure switch 6 is suitable for electrical connection with a controller of a product containing water such as a washing machine 200. The detection results of the water injection device control the start and stop of the water injection device to prevent the occurrence of overflow, which also plays the role of overflow protection. When the pressure switch 6 fails or fails, the overflow can also be prevented by the mechanical overflow protection function of the overflow protection mechanism, thereby playing the role of double overflow protection, which can effectively improve the overflow protection effect.

Further, the drain valve 3 has a fourth port 31 , a fifth port 32 and a sixth port 33 , as shown in FIG. 1 . The fourth port 312 is connected to the drain hole through the second adapter pipe 4 , the fifth port 32 is connected to the drain pipe 5 of the tub 1 , the sixth port 33 is an emergency drain port, and the pressure switch 6 is connected to the second adapter pipe 4 .

The fourth port 31 of the drain valve 3 is connected to the drain hole of the tub 1 through the second adapter pipe 4, so that the model and location of the drain valve 3 can be reasonably selected according to needs. The fifth port 32 of the drain valve 3 is connected to the drain pipe 5 of the tub 1 , and the water can be drained into the drain channel of the external environment through the drain pipe 5 . The pressure switch 6 is connected to the second adapter pipe 4 , which is convenient for pressure detection without affecting the structure of the drain valve 3 , which is beneficial to simplifying the structure of the drain valve 3 . The sixth port 33 of the drain valve 3 is an emergency drain port, which is opened in an emergency state (for example, when the pressure switch 6 detects that the pressure is too high) to realize drainage and play a protective role.

Among them, the second transfer pipe 4 is a pulsator pipe, which has a certain flexible deformation ability, which is convenient for rationally arranging the position of the drain valve 3 according to the needs, so as to optimize the structure of the product. The second adapter tube 4 and the drain valve 3 are locked by a clamp 7 . The drain valve 3 and the drain pipe 5 are locked by the clamp 7 . The drain pipe 5 may also be a corrugated pipe.

In an embodiment of the present invention, the water tub 1 is the rear tub of the drum washing machine 200. As shown in FIG. 1, the overflow hole 11 is provided on the rear wall of the rear tub.

Of course, the bucket can also be a bucket for products such as a pulsator washing machine, a dishwasher, and a sterilizing cabinet.

An embodiment of the second aspect of the present invention provides a washing machine 200, as shown in FIG. 4, comprising: a cabinet 202 and the overflow protection device 100 according to any one of the embodiments of the first aspect.

The overflow protection device 100 is connected to the casing 202 , and the tub 1 of the overflow protection device 100 is located in the casing 202 .

The washing machine 200 provided by the embodiment of the second aspect of the present invention, because it includes the overflow protection device 100 of any one of the embodiments of the first aspect, has all the beneficial effects of any of the above-mentioned embodiments, which is not repeated here. Repeat.

The following takes the drum washing machine 200 as an example for detailed description.

A drum washing machine 200, the rear barrel is provided with an overflow hole 11 at a high water level, a sealing strip (ie a sealing ring 24) is arranged around the overflow hole 11, and the overflow pipe 21 and the rear barrel are fixed by screws and squeezed. Press the sealing strip at the 11 circumference of the overflow hole to achieve the water-proof sealing effect.

The overflow pipe 21 is connected with the left port (first port 231 ) of the tee joint (ie, the drain joint 23 ) through a corrugated pipe (ie, the first transfer pipe 22 ), and the interface is locked by a clamp 7 .

The right port of the three-way joint (ie the second port 232 ) is connected to the drain valve 3 through the drain pipe 5 , and the interface is locked by the clamp 7 .

The port in the three-way joint (ie, the third port 233 ) is drained to the outside.

The drain valve 3 has three ports, the left port (ie the fifth port 32 ) is connected to the drain pipe 5 , the middle port (ie the sixth port 33 ) is an emergency drain port, and the right port (ie the fourth port 31 ) is connected through a three-way transfer The corrugated pipe (ie the second transfer pipe 4 ) is connected to the rear barrel, and the other port of the three-way transfer corrugated pipe is connected to the pressure switch 6 to monitor the water pressure in the barrel.

In this way, the front-loading washing machine 200 is provided with a protection device that combines the mechanical overflow and the pressure switch 6 overflow. When the pressure switch 6 in the tub of the washing machine 200 works normally, the mechanical overflow device is not activated. When the pressure switch 6 of the washing machine 200 fails, and the water inflow exceeds the warning line in the bucket, it will automatically overflow through the overflow pipe. In this way, the washing machine 200 can form double overflow protection during operation, which can effectively protect the safety of the user's family property.

To sum up, in the overflow protection device and the washing machine provided by the present invention, an overflow hole is added on the tub, and an overflow protection mechanism is configured. Since the position of the overflow hole is not lower than the rated water level of the tub, That is to say, the overflow hole is located at or above the maximum water level of the bucket. When the water level in the bucket reaches the overflow hole, it can be discharged through the overflow hole. The overflow hole only needs to be connected to an external drainage channel (such as a sewer), so that the overflowed water can be discharged to the external drainage channel, thereby effectively preventing the overflow phenomenon. Therefore, for products containing water such as washing machines, by using the overflow protection device of the present application, when the machine malfunctions and the water inflow does not stop, the water in the bucket can be discharged to the sewer through the overflow channel without causing the overflow phenomenon. It plays an effective mechanical overflow protection role, and it will not fail due to the failure of electrical parts, which can effectively protect the safety of the user's family property. At the same time, the overflow protection mechanism is also equipped with a siphon structure, which can prevent the sewage in the external drainage channels such as sewers from being poured into the tub, which will pollute the environment in the tub, thereby improving the reliability of the product.

In the present invention, the terms "first", "second" and "third" are only used for the purpose of description, and cannot be understood as indicating or implying relative importance; the term "multiple" refers to two or two more than one, unless otherwise expressly limited. The terms "installed", "connected", "connected", "fixed" and other terms should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be It is directly connected or indirectly connected through an intermediary. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

In the description of the present invention, it should be understood that the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right", "front", "rear", etc. are based on those shown in the accompanying drawings. The orientation or positional relationship is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or unit referred to must have a specific direction, be constructed and operated in a specific orientation, and therefore should not be construed as a reference to the present invention. limits.

In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiment", etc. means that a particular feature, structure, material or characteristic described in connection with the embodiment or example is included in the present invention novel in at least one embodiment or example. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or instance. Furthermore, the particular features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. For those skilled in the art, the present utility model may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims (10)

1. An overflow protection device, comprising:

the water containing barrel (1), wherein the water containing barrel (1) is provided with an overflow hole (11), and the position of the overflow hole (11) is not lower than the rated water level of the water containing barrel (1);

the overflow protection mechanism (2), the said overflow protection mechanism (2) communicates with the said overflow hole (11), is suitable for discharging the liquid overflowed by the said overflow hole in the said bucket;

and a siphon structure is also arranged in the overflow protection mechanism.

2. Overflow protection device according to claim 1,

the overflow protection mechanism comprises an overflow pipe, an overflow channel is limited by the overflow pipe, one end of the overflow channel is communicated with the overflow hole, and the other end of the overflow channel is communicated with the outside.

3. The overflow protection device of claim 2, wherein the siphon structure comprises:

a U-shaped part (211) formed by at least part of the inner wall surface of the overflow pipe, wherein a water storage tank (212) is enclosed by the U-shaped part (211);

and one end of the partition plate (213) is connected with the inner wall surface of the overflow pipe, and the other end of the partition plate is formed into a free end and is downwards inserted into the middle part of the water storage tank (212).

4. Overflow protection device according to claim 3,

the channel length between the U-shaped part (211) and the overflow hole (11) is smaller than the channel length between the U-shaped part (211) and one end of the overflow channel (215) communicated with the external environment.

5. Overflow protection device according to one of claims 2 to 4,

one end of the overflow channel (215) connected with the overflow hole (11) is positioned at the highest position of the overflow channel (215); and/or

The end of the overflow channel (215) far away from the overflow hole (11) is positioned at the lowest part of the overflow channel (215).

6. The overflow protection device according to any of claims 2 to 4, wherein the overflow protection mechanism (2) further comprises:

a first adapter pipe (22), wherein one end of the first adapter pipe (22) is communicated with one end of the overflow pipe (21) far away from the overflow hole (11); and

a drain joint (23), the drain joint (23) having a first port (231), a second port (232) and a third port (233), the first port (231) communicating with the other end of the first adaptor pipe (22), the second port (232) communicating with the drain pipe (5) of the tub (1), the third port (233) communicating with the external environment.

7. Overflow protection device according to claim 6,

and a sealing ring (24) is arranged between the overflow pipe (21) and the overflow hole (11).

8. Overflow protection device according to one of claims 1 to 4,

the water containing barrel (1) is provided with a drain hole, the drain hole is connected with a drain valve (3), and the drain valve (3) is connected with a pressure switch (6) for detecting liquid pressure.

9. Overflow protection device according to claim 8,

the drain valve (3) is provided with a fourth port (31), a fifth port (32) and a sixth port (33), the fourth port (31) is communicated with the drain hole through a second adapter pipe (4), the fifth port (32) is connected with the drain pipe (5) of the water containing barrel (1), the sixth port (33) is an emergency drain port, and the pressure switch (6) is connected to the second adapter pipe (4).

10. A washing machine, characterized by comprising:

a housing (202); and

the overflow protection device (100) as claimed in any of claims 1 to 9, being connected to the cabinet (202), and the tub (1) of the overflow protection device (100) being located within the cabinet (202).

Images