WO2020177672A1 - Laundry washing apparatus with internal circulation function - Google Patents

Abstract

The present invention belongs to the technical field of laundry washing and aims to solve the problem that after an existing laundry washing apparatus with an internal circulation function stops an internal circulation operation, due to the fact that water in an accommodating cavity cannot be rapidly emptied, dewatered laundry may possibly be soaked again and the normal experience of a user is thus influenced. With this aim, a laundry washing apparatus with an internal circulation function is provided in the present invention. The laundry washing apparatus comprises an outer tub assembly, an inner tub and an internal circulation assembly, wherein the outer tub assembly is provided with an accommodating cavity, a water inlet of the internal circulation assembly communicates with the outer tub assembly, a water outlet of the internal circulation assembly communicates with the accommodating cavity, a spray structure is arranged in the accommodating cavity, an atmosphere communicating structure is further arranged in the accommodating cavity, and the atmosphere communicating structure is configured to communicate with the atmosphere when the laundry washing apparatus stops an internal circulation operation so as to empty out water in the accommodating cavity. According to the present invention, a pulsator washing machine with an internal circulation function is allowed to rapidly empty out water in an accommodating cavity when the internal circulation operation stops, thereby avoiding influencing the user experience.

Description

Clothes washing equipment with internal circulation function Technical field

The invention belongs to the technical field of laundry washing, and specifically provides a laundry washing device with an internal circulation function.

Background technique

The laundry washing equipment is a device capable of washing, rinsing and/or dehydrating clothes. The types of laundry washing equipment mainly include drum washing machines, pulsator washing machines, and shoe washing machines.

In the prior art, taking the pulsator washing machine as an example, in order to make full use of the water in the pulsator washing machine, some pulsator washing machines with internal circulation function have appeared. Specifically, the water in the outer tub of the pulsator washing machine is in the pulsator washing machine. Under the action of the internal circulation component, it is recirculated back to the outer barrel to realize the recycling of water. For example, in the structure of an existing pulsator washing machine, an accommodating cavity is provided on the outer tub, and a spray structure is provided on the accommodating cavity. The spray structure is set toward the inside of the inner tub, and the accommodating cavity is connected to the outer tub through an inner circulation component. When the wheel washing machine stops the internal circulation operation, some water will still accumulate in the accommodating cavity, and because the water in the pipes of the internal circulation component falls back, a certain vacuum is formed in the accommodating cavity. At this time, the water in the accommodating cavity cannot be drained quickly. , But a little bit of dripping from the spray structure into the inner tub, which causes water to drip from the spray structure to the inner tub after the pulsator washing machine performs the dehydration process, causing the clothes to be re-soaked and the user When the clothes are taken out, water droplets may also fall on the user's arm, which affects the user's experience.

Therefore, the art needs a new laundry washing device with internal circulation function to solve the above-mentioned problems.

Summary of the invention

In order to solve the above-mentioned problems in the prior art, that is, to solve the problem that the existing laundry washing equipment with internal circulation function cannot quickly drain the water in the accommodating cavity after the internal circulation operation is stopped, so that the dehydrated laundry may be re-wetted As well as the problem that affects the normal experience of users, the present invention provides a laundry washing device with an inner circulation function. The laundry washing device includes an outer tub assembly, an inner tub and an inner circulation assembly. The inner tub is rotatably arranged in the outer tub assembly, and the outer tub assembly A receiving cavity is provided on the inner circulation component, the water inlet of the inner circulation component is communicated with the outer barrel component, and the water outlet of the inner circulation component is communicated with the receiving cavity. The receiving cavity is provided with a spray structure, and the spray structure is set toward the inside of the inner barrel, and the receiving cavity is also provided There is an atmosphere communication structure, and the atmosphere communication structure is configured to be able to communicate with the atmosphere when the laundry washing device stops the internal circulation operation to drain the water in the containing cavity.

In the preferred technical solution of the above-mentioned laundry washing device, the atmosphere communicating structure is a vent hole provided on the containing cavity.

In the preferred technical solution of the above-mentioned laundry washing device, the cross-sectional area of the vent hole is smaller than the cross-sectional area of the spray structure.

In the preferred technical solution of the above-mentioned laundry washing equipment, the atmosphere communicating structure is a one-way check valve arranged on the containing cavity, and the one-way check valve is arranged to block the atmosphere from the atmosphere when the laundry washing device is in internal circulation operation and during laundry washing The equipment is connected to the atmosphere when the internal circulation operation is stopped.

In the preferred technical solution of the above-mentioned laundry washing device, the atmosphere communication structure is arranged above the spray structure.

In the preferred technical solution of the above-mentioned laundry washing device, the containing cavity is an annular containing cavity.

In the preferred technical solution of the above-mentioned laundry washing equipment, the spray structure includes a spray pipe communicating with the accommodating cavity, a water spray port provided on the spray pipe, and a water blocking part connected with the spray pipe, and the water spray port is set toward the inside of the inner tub, The water blocking part is arranged to enable the water in the spray pipe to be sprayed into the inner tub in the form of a water curtain from the spray port.

In the preferred technical solution of the above-mentioned laundry washing device, the spray structure is fixedly connected with the receiving cavity or is integrated.

In the preferred technical solution of the above-mentioned laundry washing device, the laundry washing device is a pulsator washing machine, the outer tub assembly includes an outer tub body and an outer tub cover connected, and the receiving cavity is provided on the outer tub cover.

In the preferred technical solution of the above-mentioned laundry washing device, an extension structure is provided on the outer tub cover, and the extension structure is provided above the receiving cavity to shield the receiving cavity and the spray structure.

Those skilled in the art can understand that, in the preferred technical solution of the present invention, by providing an atmosphere communication structure on the containing cavity, the laundry washing device can communicate with the atmosphere through the atmosphere communication structure when the internal circulation operation of the laundry washing device stops, thereby destroying the containment. The vacuum in the cavity allows the water in the accommodating cavity to be quickly drained from the spray structure and drained, to avoid dripping from the spray structure after the laundry is dehydrated. The user takes out the laundry that has just been washed or re-inserts new There will be no water dripping on the user’s arm when the clothes are in use. Through this setting, it is avoided that the washing equipment is not used for a long time and the water remains in the accommodating cavity that will cause mold, odor and deterioration in the accommodating cavity. Moreover, it is convenient for the user to take and place the clothes, and no water will re-drop on the dehydrated clothes, which improves the user experience.

Further, the spray structure adopts a combined structure of a spray pipe, a water spray port and a water blocking part, so that the laundry washing equipment can first enter the accommodating cavity during the internal circulation operation, and then the water in the accommodating cavity can pass through the spray pipe from The water jet is discharged, and the water in the nozzle will form a water curtain after hitting the water retaining part, and finally enters the inner tub. Through this setting, the clothes in the inner tub are fully wetted, especially in the initial stage of washing. The detergent or washing powder is fully dissolved, so that the clothes can fully contact with the detergent or washing powder, which improves washing efficiency and washing ratio.

Further, the laundry washing equipment is a pulsator washing machine, and the pulsator washing machine is a top-opening type, that is, the loading and unloading operations of the clothes are performed through the top opening of the pulsator washing machine, and an extension structure is provided on the outer tub cover, so that the containing cavity and The spray structure can be shielded, so that the user cannot observe the receiving cavity and spray structure above the pulsator washing machine, which improves the aesthetics of the pulsator washing machine, and the user will not rub the clothes against the spray structure when the clothes are picked and placed. , To prevent the spray structure from damaging the clothes, and further enhance the user experience.

Description of the drawings

Hereinafter, the preferred embodiments of the present invention will be described with reference to the accompanying drawings and in conjunction with the pulsator washing machine. In the accompanying drawings:

Figure 1 is a top view of the pulsator washing machine of the present invention;

2 is a schematic structural diagram of the first embodiment of the pulsator washing machine of the present invention;

Figure 3 is a schematic structural view of the second embodiment of the pulsator washing machine of the present invention;

Fig. 4 is a schematic structural view of an embodiment of the injection structure of the present invention.

detailed description

First of all, those skilled in the art should understand that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention. For example, although the present invention is described in conjunction with a pulsator washing machine, the technical solution of the present invention is obviously also applicable to drum washing machines, drum washer-dryers, shoe washing machines, etc., and such changes in application objects do not deviate from the present invention. The technical principles of should be limited to the protection scope of the present invention.

It should be noted that in the description of the present invention, the terms "middle", "upper", "lower", "left", "right", "top", "bottom", "horizontal", "vertical", " The terms indicating the direction or position relationship such as “inner” and “outer” are based on the direction or position relationship shown in the drawings, which is only for ease of description, and does not indicate or imply that the device or element must have a specific orientation, It is constructed and operated in a specific orientation, so it cannot be understood as a limitation to the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance.

In addition, it should be noted that, in the description of the present invention, unless otherwise clearly specified and limited, the terms "set", "connected", and "connected" should be understood in a broad sense, for example, they may be fixedly connected or It is a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication between two components. For those skilled in the art, the specific meaning of the above-mentioned terms in the present invention can be understood according to specific circumstances.

Based on the background art, the existing pulsator washing machine with internal circulation function cannot quickly drain the water in the accommodating cavity after the internal circulation operation is stopped, so that the dehydrated laundry may be re-soaked and affect the normal user experience. The present invention provides a pulsator washing machine with internal circulation function, which aims to enable the pulsator washing machine with internal circulation function to quickly drain the water in the accommodating cavity when the internal circulation operation is stopped, so as to avoid getting wet and dehydrated. At the same time, it prevents the user from dropping water on the user’s arm during the clothes picking and placing operation, so as to avoid affecting the user’s experience.

Specifically, as shown in FIGS. 1 to 3, the pulsator washing machine of the present invention includes an outer tub assembly, an inner tub 1 and an inner circulation assembly (not shown in the figure). The inner tub 1 is rotatably arranged in the outer tub assembly and on the outer tub assembly. A accommodating cavity 2 is provided, the water inlet of the inner circulation component is in communication with the outer tub assembly, and the water outlet of the inner circulation component is in communication with the accommodating cavity 2. The accommodating cavity 2 is provided with a spraying structure 3, and the spraying structure 3 is arranged toward the inside of the inner tub 1. The accommodating cavity 2 is also provided with an atmosphere communication structure, which is configured to be able to communicate with the atmosphere when the pulsator washing machine stops the internal circulation operation, so as to drain the water in the accommodating cavity 2. The inner tub 1 is driven to rotate by a driving motor arranged below the outer tub. Wherein, the outer barrel assembly includes an outer barrel body 4 and an outer barrel cover 5. The accommodating cavity 2 can be provided on the outer barrel body 4. Of course, the accommodating cavity 2 is preferably provided on the outer barrel cover 5 (specifically, the accommodating cavity 2 can be fixedly connected On the outer lid 5 or formed on the outer lid 5), the outer lid 5 is arranged on the top of the outer barrel body 4 so that the spray structure 3 is convenient for spraying water into the inner barrel 1. In the above, the outer barrel assembly may also include For other installation structures, the accommodating cavity 2 can be arranged on these installation structures. Those skilled in the art can flexibly set the specific arrangement position of the accommodating cavity 2 on the outer barrel assembly in practical applications, as long as the accommodating cavity 2 can accommodate the internal circulation assembly The delivered water is sufficient. In addition, the inner circulation component may include an inner circulation pipe and a circulation pump arranged in the inner circulation pipe. The inner circulation pipe is arranged on the outer wall of the outer barrel body 4, and the water inlet of the inner circulation pipe is connected with the bottom of the outer barrel body 4, and the inner circulation pipe The water outlet of the pipe is connected to the containing cavity 2. Under the circulation of the circulating pump, the water in the outer barrel body 4 enters the inner circulation pipe from the water inlet of the inner circulation pipe, and enters the containing cavity 2 through the water outlet of the inner circulation pipe Then, it is sprayed into the inner tub 1 through the spray structure 3 on the containing cavity 2. In the above-mentioned internal circulation assembly, the circulation pump can also be replaced with a suction pump, and the internal circulation pipeline can also be arranged between the outer barrel body 4 and the inner barrel 1, or directly formed on the inner wall of the outer barrel body 4. The change of the component structure does not constitute a limitation to the present invention, and should be limited within the protection scope of the present invention.

It should be noted that the accommodating cavity 2 of the present invention can be an annular accommodating cavity, and the number of injection structures 3 can be one or more. For example, six injection structures 3 can be provided on the annular accommodating cavity. The spray structure 3 is evenly distributed on the annular accommodating cavity 2, so that the pulsator washing machine sprays the clothes without dead spots, and improves the washing efficiency and washing ratio of the clothes. Of course, the above-mentioned annular accommodating cavity can be replaced with a plurality of arc-shaped accommodating cavities, which are evenly distributed on the outer cover 5. Those skilled in the art can flexibly set the specific structure and shape of the accommodating cavity 2 and the specific number of spray structures 3 in practical applications, as long as the accommodating cavity 2 and the spray structure 3 can be sprayed into the inner tub 1 .

In addition, it should also be noted that the atmosphere communication structure can be arranged above, on the left side or the right side of the spray structure 3. Those skilled in the art can use the pulsator washing machine according to the placement method of the pulsator washing machine and the accommodating chamber 2, the spray structure. 3 to flexibly adjust the specific setting position of the atmospheric communication structure on the accommodating cavity 2. The adjustment and change of the specific setting position of the atmospheric communication structure does not constitute a limitation of the present invention, and should be limited to the protection scope of the present invention. Inside.

In a possible implementation, the atmosphere communicating structure is a vent 6 provided on the containing cavity 2. Wherein, the vent hole 6 can be horizontally arranged on the receiving cavity 2, or diagonally arranged on the receiving cavity 2, or vertically arranged on the receiving cavity 2. For example, in the structure shown in FIG. 2, the vent hole 6 is arranged horizontally The accommodating cavity 2 is located above the spraying structure 3. When the pulsator washing machine performs the internal circulation operation, the inner circulation component delivers water to the accommodating cavity 2. The accommodating cavity 2 is filled with water, and the water in the accommodating cavity 2 passes through the spraying structure 3 and the vent 6 enter the inner tub 1. When the pulsator washing machine stops the inner circulation operation, a part of the water in the accommodating cavity 2 will fall back into the inner circulation assembly, and the other part of the water will remain in the accommodating cavity 2. At this time, in the atmosphere Under the action of the pressure, the vent hole 6 is turned on, breaking the vacuum in the containing cavity 2 so that all water remaining in the containing cavity 2 is drained through the spray structure 3. In a more preferred situation, the cross-sectional area of the vent hole 6 is smaller than the cross-sectional area of the spray structure 3. With such an arrangement, the pulsator washing machine will only spray from the vent hole 6 during the internal circulation operation. A small amount of water is prevented from being sprayed to the outside of the outer barrel body 4 and causing safety accidents. It should be noted that the above-mentioned cross-section is compared with the flow direction of water, that is, the cross-section of the vent 6 and the cross-section of the spray structure 3 are perpendicular to the direction of water flow. Therefore, the above-mentioned cross-sectional area is the water flow. Cross-sectional area.

In another possible embodiment, the atmosphere communicating structure is a one-way check valve 7 arranged on the containing chamber 2, and the one-way check valve 7 is arranged to block the atmosphere and when the pulsator washing machine performs internal circulation operation The pulsator washing machine is connected to the atmosphere when the internal circulation operation is stopped. Among them, the one-way check valve 7 can be arranged on the top, side or bottom of the containing cavity 2. For example, in the structure shown in FIG. 3, the one-way check valve 7 is arranged on the side of the containing cavity 2 and near the top. , When the pulsator washing machine performs the internal circulation operation, the internal circulation component delivers water to the containing chamber 2, and the containing chamber 2 is filled with water. The one-way check valve 7 is closed under the action of water pressure and isolated from the outside atmosphere. When the washing machine stops the internal circulation operation, part of the water in the accommodating chamber 2 will fall back into the internal circulation assembly, and another part of the water will remain in the accommodating chamber 2. At this time, under the action of atmospheric pressure, the one-way check valve 7 is guided It is open and communicated with the atmosphere, breaking the vacuum in the containing chamber 2 so that all water remaining in the containing chamber 2 is drained through the spray structure 3. In the present invention, the one-way check valve 7 can adopt a combined structure of a valve housing, a movable valve, a fixed valve and a spring, wherein the movable valve, the fixed valve and the spring are all arranged in the valve housing, and the fixed valve is fixed on the inner wall of the valve housing , The movable valve is slidably arranged in the valve housing, the spring is connected between the movable valve and the fixed valve, the movable valve and the fixed valve are provided with vent holes, and the vent holes on the movable valve and the vent holes on the fixed valve are arranged in a staggered manner The valve housing is provided with a first opening on the side close to the movable valve, and the valve housing is provided with a second opening on the side close to the fixed valve. The first opening is in communication with the accommodating cavity 2, and the second opening is in communication with the outside atmosphere. When the wheel washing machine performs internal circulation operation, water enters the valve housing through the first opening and pushes the movable valve to move to the fixed valve. At this time, the spring is compressed. When the movable valve abuts against the fixed valve, the end surface of the movable valve will fix the valve. The upper vent hole is closed and blocked from the containing chamber 2, and the end face of the fixed valve seals the movable valve upper vent hole from the outside atmosphere, so that the one-way check valve 7 blocks the atmosphere from the containing chamber 2, in the pulsator washing machine stop During the cycle operation, part of the water in the containing chamber 2 will fall back into the inner circulation assembly, and another part of the water will remain in the containing chamber 2. At this time, under the combined action of the spring and atmospheric pressure, the movable valve moves away from the fixed valve, thereby The accommodating cavity 2 is connected to the outside atmosphere through the vent on the movable valve and the vent on the fixed valve, breaking the vacuum in the accommodating cavity 2, so that all water remaining in the accommodating cavity 2 is drained through the spray structure 3. Of course, in the above-mentioned one-way check valve 7 structure, the movable valve and the fixed valve can also be set to have the same magnetic valve. At this time, the spring structure can be eliminated, and the other structures remain unchanged, that is, the magnetic effect is used to make The movable valve moves away from the fixed valve. Those skilled in the art can flexibly set the specific structure and selection model of the one-way check valve 7 in practical applications, as long as the one-way check valve 7 can achieve isolation from the atmosphere and in the wave during the internal circulation operation of the pulsator washing machine. When the wheel washing machine stops the internal circulation operation, it is sufficient to communicate with the atmosphere.

In addition, the above-mentioned two atmospheric communication structures are only examples. Those skilled in the art can also adopt other atmospheric communication structures in practical applications. The adjustment and change of the specific structure of such atmospheric communication structures does not constitute a limitation of the present invention, and should It is limited within the protection scope of the present invention.

Preferably, as shown in Figures 2 to 4, the spray structure 3 includes a spray pipe 31 communicating with the accommodating cavity 2, a water spray port 32 provided on the spray pipe 31, and a water blocking portion 33 connected with the spray pipe 31. The port 32 is set toward the inside of the inner tub 1, and the water blocking portion 33 is provided to enable the water in the spray pipe 31 to be sprayed into the inner tub 1 in the form of a water curtain from the spray port 32. Wherein, the water blocking portion 33 may adopt the structure shown in FIG. 4, that is, the water blocking portion 33 is an arc-shaped lip, and the water spray port 32 is arranged obliquely, so that the water in the containing cavity 2 flows to the nozzle through the nozzle 31 When the water spray port 32 is located, it can hit the arc-shaped lip and form a water curtain, and then spray it into the inner tub 1 so as to fully wet the clothes and quickly dissolve the detergent or washing powder. Of course, in the above structure, the water spout 32 can also be arranged horizontally, and then the water blocking part 33 is arranged obliquely and the water blocking part 33 is a linear lip. Those skilled in the art can flexibly set the direction of the water spout 32 and the structure and shape of the water blocking portion 33 in practical applications. In addition, the spray structure 3 can also cancel the above-mentioned nozzle 31 structure. For example, the spray structure 3 is an oblique water nozzle on the accommodating cavity 2. In this case, the volume of the accommodating cavity 2 can be appropriately increased to make the accommodating cavity 2 at least It extends into the upper edge of the inner tub 1 so that the water spray port can be set toward the inside of the inner tub 1 to facilitate spraying water into the inner tub 1. Those skilled in the art can flexibly set the specific structure of the spray structure 3 in practical applications, as long as It is sufficient that the water in the containing cavity 2 can be sprayed into the inner tub 1 through the spray structure 3.

Preferably, an extension structure (not shown in the figure) is provided on the outer barrel cover 5, and the extension structure is provided above the containing cavity 2 to shield the containing cavity 2 and the spray structure 3. Wherein, the extension structure may be an inner annular plate on the outer lid 5, and may also include a plurality of inner arc-shaped plates arranged on the outer lid 5. Those skilled in the art can flexibly set the specific structure of the extension structure in practical applications. As long as the accommodating cavity 2 and the spray structure 3 can be shielded by the extension structure.

In the present invention, the spray structure 3 is fixedly connected to the containing cavity 2 or is integrated. That is, the spray structure 3 can be connected to the containing cavity 2 by bonding, screwing, riveting, and/or magnetic adsorption, and can also be integrated with the containing cavity 2 by welding, injection molding, etc., and those skilled in the art can use it in practical applications. The specific arrangement mode between the injection structure 3 and the containing cavity 2 is flexibly set in the medium. The adjustment and change of the specific arrangement mode between the injection structure 3 and the containing cavity 2 does not constitute a limitation of the present invention, and should be limited to the present invention. Within the scope of protection.

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

Claims (10)

A laundry washing device with an internal circulation function, wherein the laundry washing device includes an outer tub assembly, an inner tub and an inner circulation assembly, the inner tub is rotatably arranged in the outer tub assembly, and the outer tub assembly A accommodating cavity is arranged on the inner circulation assembly, the water inlet of the inner circulation assembly is in communication with the outer barrel assembly, and the water outlet of the inner circulation assembly is in communication with the accommodating cavity. The accommodating cavity is provided with a spray structure, and the spray The structure is arranged toward the inside of the inner tub, and the accommodating cavity is also provided with an atmosphere communicating structure, and the atmosphere communicating structure is configured to be able to communicate with the atmosphere when the laundry washing device stops the internal circulation operation to drain the containment Water in the cavity. The laundry washing device according to claim 1, wherein the atmosphere communicating structure is a vent hole provided on the containing cavity. The laundry washing device according to claim 2, wherein the cross-sectional area of the vent hole is smaller than the cross-sectional area of the spray structure. The laundry washing device according to claim 1, wherein the atmosphere communicating structure is a one-way check valve arranged on the containing cavity, and the one-way check valve is arranged in the laundry washing device Blocking from the atmosphere during the internal circulation operation and communicating with the atmosphere when the laundry washing device stops the internal circulation operation. The laundry washing device according to claim 1, wherein the atmosphere communication structure is disposed above the spray structure. The laundry washing device according to claim 1, wherein the containing cavity is an annular containing cavity. The laundry washing device according to claim 1, wherein the spray structure comprises a spray tube connected to the receiving cavity, a water spray port provided on the spray tube, and a stopper connected to the spray tube. The water part, the water spray port is arranged toward the inside of the inner tub, and the water blocking part is arranged to enable the water in the spray pipe to be sprayed into the inner tub in the form of a water curtain from the water spray port. The laundry washing device according to claim 1, wherein the spray structure is fixedly connected to the receiving cavity or is integrated. The laundry washing device according to any one of claims 1 to 8, wherein the laundry washing device is a pulsator washing machine, and the outer tub assembly includes a connected outer tub body and an outer tub cover, and the receiving The cavity is arranged on the outer barrel cover. The laundry washing apparatus according to claim 9, wherein an extension structure is provided on the outer tub cover, and the extension structure is provided above the receiving cavity to shield the receiving cavity and the spray structure.

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