JP2023533145A - washing machine - Google Patents

Abstract

SUMMARY OF THE INVENTION In one aspect, the present invention discloses a washing machine including an inner tub forming a rotatable water storage tank, the inner tub being provided with a lint filter. By installing a lint filter in the non-perforated inner tank to filter and collect the lint in the washing water, the residual lint in the washing water is reduced and the washing effect is improved. In another aspect, the present invention discloses a washing machine including an inner tub forming a rotatable water storage tank, the inner tub being provided with a drain port, and the drain port being provided with a lint filter. By installing a lint filter covering the drain port in the non-perforated inner tank and filtering the lint in the drain water flow of the washing machine, the lint in the washing water flows to the drain port and clogs the drain port. is prevented. This improves the smoothness of drainage in the non-perforated inner tub of a washing machine that does not require cleaning.

Description

Field of the Invention The present invention belongs to the field of washing machines, specifically to a cleaning-free washing machine in which wash water does not cross-flow between an inner tub and an outer tub, and more particularly to filter and remove lint in the non-perforated inner tub. Concerning collectible washing machines.

Generally, a conventional washing machine includes an inner tub and an outer tub, and the inner tub is mounted inside the outer tub. The outer tub is used to contain washing water, and the inner tub is filled with clothes. A cleaning structure such as a pulsator is mounted inside the inner tank. The inner tub and/or the pulsator are driven by a motor to rotate to generate a stream of washing water to wash the clothes. During the cleaning process, the inner tub is connected to the outer tub through the dewatering holes provided in the inner tub, so that water is stored in both the inner tub and the outer tub. Therefore, the general washing machine in the prior art has the following three problems.

First, water is wasted. Only the water in the inner bath is required during actual operation.

Second, bacteria thrive. Since the water at the connection point between the inner and outer tanks cannot be completely drained and cannot be cleaned, bacteria grow in the outer tank after long-term use, contaminating clothes.

Third, the presence of the outer tub significantly reduces the capacity of the washing machine. In the case of a general washing machine, the only way to increase the capacity is to increase the size of the entire structure of the washing machine.

In order to solve the above problems, the applicant provided a washing machine having a non-perforated inner tub. In this washing machine, the inner tub is a closed container without dewatering holes, so that washing water is stored in the inner tub, and the inner tub has two functions of water storage and rotating washing. This avoids the problem that the space between the inner and outer tanks cannot be cleaned and is contaminated because the washing water flows between the inner and outer tanks.

However, since the non-porous inner tank is a sealed inner tank, the lint that falls off the clothes during the washing process will remain in the washing water. As a result of the build-up, the drain is clogged and the proper drainage of the washing machine is hindered.

In addition, since the non-perforated inner tank is a sealed inner tank, it is difficult to discharge lint that is mixed in with the washing water during the washing process. In particular, in the final dehydration stage, the drain water flow becomes weak, and the water subjected to centrifugal force must be lifted up to the drain port at the top of the inner tank and discharged. As a result, a large amount of lint waste remains in the inner tub as a result of further weakening of the power for draining water, which greatly affects the washing effect of the clothes by the washing machine.

In addition, conventional washing machine lint filters cannot collect lint indefinitely and do not have the ability to quickly clean the lint filter each time the washing machine processes clothes. As a result, the washing machine continues to operate with the lint filter saturated, and the lint filter cannot quickly and effectively collect the lint in the tub.

In view of the above, the present invention is proposed.

The technical problem to be solved by the present invention is to eliminate the defects of the prior art. To provide a washing machine which solves problems such as a large amount of lint remaining in a non-perforated inner tub.

In order to solve the above technical problem, in a first aspect, the present invention includes an inner tank that constitutes a rotatable water storage tank, the inner tank is provided with a lint filter, and the inner tank includes: A washing machine is disclosed in which water passes through a lint filter and the lint filter filters lint in the passing water.

Furthermore, the lint filter has a filtering chamber inside. The lint filter is provided with a water inlet and a water outlet for communicating the filtering chamber with the interior of the inner tank. The water inlet and the water outlet are each provided with a check valve for controlling the flow direction of the water flow. A filtering structure for filtering lint in the passing water flow is provided in the filtering chamber, the spout, the check valve, or a combination thereof, and is used to dam the lint in the filtering chamber. be done.

Furthermore, the inner tub is provided with a dirt discharge hole. The dirt discharge hole allows communication between the filtration chamber of the lint filter and the outer tank outside the inner tank.

Alternatively, a collection tank is provided below the inner tank. Further, the side wall of the inner tank is provided with a channel extending vertically downward, and the lower end of the channel extends into the collecting tank. The dirt discharge hole is used to communicate the filtering chamber of the lint filter with the flow path, and to discharge the blocked lint together with the waste water of the washing machine from the dirt discharge hole to the outside of the inner tub.

Further, the filter chamber within the lint filter is equipped with a centrifugal valve structure for controlling the opening and closing of the dirt discharge hole. When the rotation speed of the inner tub reaches a predetermined value, the valve core of the centrifugal valve structure opens the dirt discharge hole under the action of centrifugal force.

Furthermore, the inner tank has a tank-like structure in which the axis is vertically installed and the upper end is open. A lint filter is installed in the middle part of the side wall of the inner tub. The side wall of the inner tank has a tapered shape with a large radial size at the upper end and a small radial size at the lower end.

Further, a plurality of lint filters are distributed on the side wall of the inner tub, each lint filter being symmetrically spaced with respect to the axis of the inner tub.

Furthermore, the inner tank has a plurality of wash water levels. At least a portion of the lint filter is higher than the lowest wash water level in the inner tub, and preferably the highest portion of the lint filter is lower than the highest wash water level in the inner tub.

Furthermore, a plurality of drain holes are distributed on the upper end of the inner tank. The inner tank is rotatably fitted in the outer tank, and each drain port communicates the inner tank and the outer tank.

Alternatively, a drainage port is provided at the upper end of the inner tank, and a collection tank is provided below the inner tank. A channel extending vertically downward is provided in the side wall of the inner tank. The channel has an upper end communicating with the drain port and a lower end extending into the collection tank. The drain port communicates the inside of the inner tank with the collection tank outside the inner tank through the flow channel, and the water that rises to the mouth of the inner tank due to centrifugal force is discharged from the drain port to the outside of the inner tank. used for

Further, the centrifugal valve structure includes a valve core that movably seals or opens the hole, and a centrifugal device that is connected to the valve core and pulls the valve core to open the hole by centrifugal force when the inner tank rotates at high speed. and an elastic member connected to the valve core to move the valve core against the centrifugal force and close the hole when the inner tank rotates at a low speed.

Additionally, the lint filter includes a casing. The casing is engaged and mounted inside the side walls of the inner tub. A casing and an inner tank also surround the filtration chamber. A first opening and a second opening are provided on opposite sides of the casing of the lint filter in the direction of rotation of the inner tub. A valve body rotatable around an axis is installed in each of the first opening and the second opening. The rotation axis of the valve body is parallel to the axis of the inner tank. The valve element receives an impact from the water flow and rotates toward the inside of the casing so as to be able to open the opening. As a result, when the inner tank rotates around the axis, the water flow impacts the valve element of one opening, causing it to rotate inward and open the corresponding opening, but the valve element of the other opening is It is positionally regulated by the casing to close the corresponding opening. As a result, the effect of alternatively opening and alternatively closing the openings on both sides of the lint filter is achieved. Moreover, a spout is provided on the side of the casing facing the inside of the inner tank and/or on the upper and lower sides. The spout is provided with a grid structure that provides lint filtering for the exiting water stream.

By using the above technical solutions, the present invention has the following beneficial effects compared with the prior art.

By installing a lint filter in the non-perforated inner tank to filter and collect the lint in the washing water, the residual lint in the washing water is reduced and the washing effect is improved. In particular, the lint filter is provided with a dirt discharge hole having a centrifugal valve so that the lint collected by the lint filter can be washed away with the drain water flow of the washing machine, so that the drain water flow can be used for each washing. Then, the effect of automatically cleaning the lint filter is realized.

In a second aspect, the present invention provides a washing machine including an inner tub forming a rotatable water storage tank, the inner tub being provided with a drain port, and the drain port being provided with a lint filter. .

Additionally, the lint filter is one or a combination of a grid structure, a mesh structure, a comb structure covering the drain.

Furthermore, the lint filter is a member integral with the inner tub. Alternatively, the lint filter is a separate member fixedly attached to the inner tub. Preferably, the inner tub is fitted with a balancing ring and the lint filter is fixedly connected to or integrally molded with the balancing ring.

Further, the lint filter has a ring-shaped structure that is provided on the inner periphery of the side wall of the inner tank and covers the drain port. The lint filter and the inner wall of the inner tub jointly surround a water-permeable space, and the water-permeable space communicates with the outside of the inner tub through a drain port. The water passage space communicates with the inside of the inner tank through the filtering gap of the lint filter.

Preferably, both upper and lower sides of the ring-shaped lint filter are directly or indirectly connected to the inner wall of the inner tub.

Furthermore, the inner tank has a tank-like structure in which the axis is vertically installed and the upper end is open. Moreover, the side wall of the inner tank has a tapered shape with a large radial size at the upper end and a small radial size at the lower end. At least one drainage port is provided in the ceiling of the side wall of the inner tank. An annular lint filter is provided on the inner peripheral side of the ceiling of the inner tub.

Furthermore, the lint filter includes a plurality of filter comb teeth distributed at intervals along the circumferential direction of the inner tank, and gaps between adjacent filter comb teeth constitute filter gaps through which water flows. The width d of the filtration gap is smaller than the hole diameter D of the drain. Preferably, the filter comb teeth have a sheet-like structure, and a is 0 or more and less than 90, where a is an included angle between the sheet-like filter comb teeth and the radial cross section of the inner tank.

Further, the annular lint filter has a tapered shape that gradually contracts from bottom to top.

Further, the annular lint filter is divided into an upper collecting section and a lower filtering section. The collecting portion and the filtering portion have tapered shapes with different taper degrees, and the taper degree a2 of the collecting portion is greater than the taper degree a1 of the filtering portion. Alternatively, the collecting portion is cylindrical and the filtering portion is tapered. Preferably, the filtration unit is provided with a collection tank that is recessed toward the inside of the water-passing space and that opens toward the inside of the inner tank.

Furthermore, each filtering comb tine is connected through at least one fixed ring. Preferably, each filtering comb tine is integrally mounted with a fixed ring.

Furthermore, the lower end of each filter comb tooth is connected to the inner wall of the inner tank, and the upper end is connected to the inner wall of the inner tank via a water stop plate.

Furthermore, the water stop plate has an annular shape that is horizontally installed and extends in the radial direction of the inner tank. An annular water stop plate has an inner periphery connected to the upper end of each filter comb tooth and an outer periphery connected to the inner periphery of the inner tank.

By using the above technical solutions, the present invention has the following beneficial effects compared with the prior art.

By installing a lint filter covering the drain port in the non-perforated inner tank and filtering the lint in the drain water flow of the washing machine, the lint in the washing water flows to the drain port and clogs the drain port. is prevented. This improves the smoothness of drainage in the washing machine. In particular, by tapering the lint filter, the lint filtered by the lint filter can be moved upward by the impact of the drain water flow. This avoids the problem that the lint accumulates below the lint filter and affects the smoothness of the drainage, thus achieving the effect of improving the filtration efficiency of the lint filter.

In addition, the present invention has a simple structure, is highly effective, and is suitable for widespread use.

Specific embodiments of the present invention will be described in more detail below in combination with the drawings.

The drawings are part of the invention and are used for a further understanding of the invention. Also, the schematic embodiments of the invention and their descriptions are used for the interpretation of the invention, but do not unduly limit the invention. It should be understood that the drawings described below are only part of the examples, and those skilled in the art may derive further drawings from these drawings, provided that no creative effort is required. It is possible.

FIG. 1 is a schematic structural diagram of a washing machine according to one embodiment of the present invention. FIG. 2 is a schematic structural diagram of a washing machine according to another embodiment of the present invention. FIG. 3 is a schematic diagram of an enlarged structure of part A of FIG. 1 in an embodiment of the present invention. FIG. 4 is a schematic structural diagram of the closed lint filter of the BB section of FIG. 3 in the embodiment of the present invention. FIG. 5 is a schematic structural diagram of the open lint filter of the BB cross section of FIG. 3 in the embodiment of the present invention. FIG. 6 is a schematic structural diagram of a washing machine according to a further embodiment of the present invention; FIG. 7 is a schematic diagram of an enlarged structure of part C of FIG. 6 in an embodiment of the present invention. FIG. 8 is a schematic side view of the lint filter in an embodiment of the present invention. FIG. 9 is a schematic structural diagram of a lint filter in an embodiment of the present invention. FIG. 10 is a schematic diagram of an enlarged structure of part C of FIG. 6 in another embodiment of the present invention. FIG. 11 is a schematic side view of a lint filter according to another embodiment of the present invention; FIG. 12 is a schematic structural diagram of a lint filter in another embodiment of the present invention.

It should be noted that these drawings and written description are not intended to limit the scope of the inventive concept in any way, but rather to explain the inventive concepts to those skilled in the art with reference to specific embodiments. It is.

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments will be described clearly and concisely in combination with the drawings of the embodiments of the present invention. It should be noted that the following examples are for the purpose of explaining the present invention, and do not limit the scope of the present invention.

In the description of the present invention, terms such as "top", "bottom", "front", "back", "left", "right", "vertical", "inside", and "outside" should be explained. The direction or positional relationship indicated by is the direction or positional relationship based on the illustration, and is only for the convenience and simplification of the description of the present invention, and the target device or member is in a specific direction. It does not express or imply that it has and must be configured and operated in a particular direction. As such, it should not be construed as limiting the invention.

In the description of the present invention, the terms "attached", "connected", and "connected" should be interpreted broadly, unless explicitly defined and limited otherwise. For example, it may be a fixed connection, a removable connection, or an integral connection. Also, the connection may be mechanical or electrical. Furthermore, it may be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can interpret the specific meanings of the above terms in the present invention according to specific situations.

As shown in FIGS. 1 to 5, a washing machine will be described in this embodiment. The washing machine includes a housing 2 . An inner tank 1 is provided in the housing 2 . The axis of the inner tank 1 is set vertically. The upper end of the inner tank 1 is opened to form a tank port 101 of the inner tank, and the bottom end is sealed to form an inner tank bottom 103 . A side wall 102 of the inner tank connects between a tank port 101 and an inner tank bottom 103 of the inner tank. Further, at least the intermediate and lower tank walls of the inner tank 1 are not provided with through-holes so that the inside of the inner tank 1 constitutes a water storage tank installed so that the ceiling is open. A door 4 that can be opened outward is attached to the upper end of the housing 2 of the washing machine. Therefore, the purpose of putting clothes into the inner tub 1 from the tub port 101 of the inner tub after the door 4 is opened is realized. A lower portion of the inner tub 1 is mounted in a housing 2 of the washing machine via an inner tub supporting member 3 . The inner tank support member 3 is installed coaxially with the inner tank 1 . The inner tub support member 3 is connected to the housing 2 of the washing machine via a vibration damping suspension rod or a vibration damping support leg. This achieves the purpose of mounting the inner tub supporting member 3 in the housing 2 of the washing machine in a vibrating manner. In addition, the center of the inner tub bottom 103 is installed coaxially with the motor shaft of the driving motor 5 of the washing machine in order to rotate the inner tub 1 . Both the inner tank 1 and the drive motor 5 are fixedly attached to the inner tank supporting member 3 . Preferably, the inner tub bottom 103 and the driving motor 5 are installed on both upper and lower sides of the inner tub supporting member 3, respectively. A drive motor 5 is fixedly connected to the inner tank support member 3 . A motor shaft of the drive motor 5 passes through the inner tank supporting member 3 via a bearing and is coaxially and fixedly connected to the inner tank bottom 103 . Moreover, the motor shaft of the drive motor 5 is rotatable with respect to the inner tank support member 3 . Thus, the inner tub 1 and the drive motor 5 are attached to the inner tub support member 3, and the inner tub 1 can be rotated independently by the action of the drive motor 5, thereby realizing the purpose of washing the clothes inside. .

Further, a relatively rotatable stirring structure is installed in the inner tank 1 . The stirring structure can be any conventional device such as, for example, a pulsator 10 or a stirring bar. Accordingly, under the action of the driving motor, the inner tub 1 and/or the agitating structure are rotationally driven to form various streams of water in the inner tub, which are used to treat the clothes in the inner tub. In addition, a balance ring 11 is installed in the inner tub 1 to ensure stability during rotation of the inner tub. Preferably, the balancing ring 11 is located at the mouth 101 of the inner tank.

In addition, since the inner tub forms a water storage tank when the washing machine performs washing, the clothes come into contact only with the washing water in the inner water storage tub during the washing process. This prevents the washing water from cross-flowing between the inner and outer tanks, causing the washing water between the inner and outer tanks to flow into the inner tank and contaminate the clothes. Cleanliness of machine washing is greatly improved. In addition, it is possible to avoid a situation in which washing of the clothes by the washing machine is not thorough due to contamination of the space between the inner tub and the outer tub with the washing water.

In the embodiment of the present invention, the water flow separated from the clothes in the inner tub 1 of the washing machine is discharged to the outside, and the inner tub 1 is sealed and stored during the operation process of the washing machine for normal washing. , set as follows.

The washing machine in an embodiment of the invention can be any washing machine in the prior art with an inner tub 1 forming a rotatable water reservoir. The inner tank 1 has a tapered shape in which the tank diameter gradually increases from the bottom to the top. At least one drainage port 7 is installed in the cross section of the maximum diameter of the ceiling of the inner tank 1 . Therefore, during the normal washing and rinsing process of the inner tank 1, the washing water does not flow out to the drain port 7, and the inner tank 1 directly constitutes a water tank for storing washing water and rinsing water. Thus, the washing water and rinsing water stored in the inner tub are used to wash or rinse the clothes. On the other hand, when the rotation speed of the inner tank 1 becomes higher than a predetermined value in the process of dewatering and draining the inner tank 1, the wash water receives centrifugal force and flows upward, and reaches the ceiling of the inner tank 1. It flows to the installed drain port 7 and is smoothly discharged from the inner tank 1 to the outside. This achieves the purpose of allowing the washing machine having the non-perforated inner tub to normally execute the spin-drying program. The washing machine according to the embodiment of the present invention is not limited to the structure shown in the drawings. For example, as shown in FIG. 1, a conventional general washing machine may be adopted, wherein the inner tub 1 of the washing machine does not have dewatering holes at least in the middle and lower parts, and the water storage tank is used when washing the washing machine. A washing machine that forms a

In addition, in order to ensure the sealing of the inner tank 1, an inner tank cover capable of opening and closing the inner tank opening 101 is installed in the inner tank 1, and the opening and closing of the inner tank opening 101 is properly performed. good. In addition, a centrifugal valve 8 for properly opening and closing the drain port 7 may be installed in the inner tank 1 in order to prevent washing water from being accidentally discharged from the drain port 7 . As a result, the centrifugal valve 8 normally closes the drain port 7, but when the washing machine is dehydrating, after the rotation speed of the inner tub is controlled to reach a predetermined value, the centrifugal valve 8 is closed. The valve core opens the drainage port 7 by centrifugal force, thereby realizing the effect of smoothly draining the water.

In the embodiment of the present invention, the inner tub 1 of the washing machine serves as a water storage tank. Therefore, in the washing process of the washing machine, lint that falls off from the clothes by washing remains in the washing water, resulting in lint on the clothes after washing. returns and remains a problem. In order to solve the above problem, in the present invention, a lint filter 6 is provided in the inner tub 1, which is a rotatable water storage tank of the washing machine. The water in the inner tank 1 is filtered by passing through the lint filter 6 . The lint filter 6 filters lint in the water passing through and collects lint in the inner tub of the washing machine, thereby solving the problem that the lint mixed in the washing water remains on the clothes after washing. Can be effectively avoided.

In embodiments of the present invention, the lint filter 6 may be of any conventional construction capable of filtering and collecting lint in the wash water. In the embodiment of the present invention, for convenience of description, the lint filter 6 is installed as follows. That is, as shown in FIGS. 3 to 5, the lint filter 6 is attached to the inner wall of the inner tank 1. As shown in FIG. The interior of the lint filter 6 is provided with a filtering chamber 60 . The lint filter 6 is provided with a water inlet 71 and a water outlet 72 for communicating the filtration chamber 60 with the inside of the inner tank 1 . The water inlet 71 and the water outlet 72 are each provided with a check valve for controlling the flow direction of the water flow. A filtering structure 73 for filtering lint in the passing water stream is provided in the filtering chamber 60 , the spout 72 , the check valve, or a combination thereof. used to dam the

In the embodiment of the present invention, as shown in FIG. 1, the inner tub 1 is provided with dirt discharge holes 61. The dirt discharge hole 61 allows the filtration chamber 60 of the lint filter 6 and the outer tub 31 outside the inner tub 1 to communicate with each other. Preferably, the mouth of the outer tub 31 is provided with an openable and closable outer tub lid 12 in order to prevent the water flow from scattering to the outside.

Alternatively, as shown in FIG. 2, the inner tank 1 is provided with a dirt discharge hole 61, and a collection tank 32 is provided below the inner tank 1. As shown in FIG. Further, the side wall 102 of the inner tank is provided with a channel 9 extending vertically downward, and the lower end of the channel 9 extends into the collecting tank 32 . The dirt discharge hole 61 communicates the filter chamber 60 of the lint filter 6 with the flow path 9, and discharges the dammed lint together with the waste water of the washing machine from the dirt discharge hole 61 to the collection tank 32 outside the inner tub 1. used for

In the embodiment of the present invention, the filter chamber 60 in the lint filter 6 is equipped with a centrifugal valve 8 for controlling the opening and closing of the dirt discharge hole 61 . When the rotational speed of the inner tub reaches a predetermined value, the valve core of the centrifugal valve 8 is acted upon by centrifugal force to open the dirt discharge hole 61 .

When the washing machine normally executes the washing program, the centrifugal valve 8 closes the dirt discharge hole 61 so that the filter chamber 60 of the lint filter 6 communicates only with the inside of the inner tub 1 . Therefore, after the washing water in the inner tub 1 has passed through the lint filter 6 , the lint is dammed up in the filtering chamber 60 . As a result, the lint filter 6 achieves the effect of collecting lint in the inner tub 1 . On the other hand, when the washing machine executes the spin-drying and draining program, the centrifugal valve 8 receives centrifugal force due to the high-speed rotation of the inner tub, and the dirt discharge hole 61 is opened. As a result, the filtration chamber 60 of the lint filter 6 communicates with the inside and outside of the inner tank 1, respectively. Also, the washing water in the inner tank 1 flows upward under centrifugal force and passes through the lint filter 6 during the flow process, so that part of the washing water passes through the filter 6 and the dirt discharge hole 61. and flows out of the inner tank. During the outflow process, the lint collected in the filter chamber 60 is swept along and out of the inner tub 1 . As a result, the lint collected by the lint filter 6 is washed away from the inner tank 1, thereby achieving the effect of automatically cleaning the lint filter 6. - 特許庁

In the embodiment of the present invention, the lint filter 6 is installed in the non-perforated inner tub. In addition, the lint filter 6 is provided with a dirt discharge hole 61 communicating with the outside of the inner tank 1, and the dirt discharge hole 61 is provided with a centrifugal valve 8 structure that receives centrifugal force generated by the rotational speed of the inner tank and controls opening and closing. do. As a result, the lint collected by the lint filter 6 can be washed away from the inner tub together with the drain water flow when the washing machine performs dehydration or drainage, so that the effect of automatically cleaning the lint filter 6 is achieved.

As shown in FIGS. 1 to 5, in the embodiment of the present invention, the inner tank 1 has a vertical axis and a tank-like structure with an open upper end. The lint filter 6 is installed in the middle part of the side wall 102 of the inner tub. To ensure that the lint in the wash water is effectively collected and filtered by the lint filter 6, the lint filter 6 is at least partially below the maximum wash water level in the inner tub 1 of the washing machine. , at least part of which is higher than the minimum washing water level in the inner tub 1 of the washing machine. In addition, in the embodiment of the present invention, the side wall 102 of the inner tank 1 has a tapered shape with a larger radial size at the upper end and a smaller radial size at the lower end. As a result, the wash water in the inner tub 1 receives centrifugal force and flows upward while adhering to the side wall 102 of the inner tub during dewatering and draining of the washing machine. At least part of the washing water flows into the filter chamber 60 of the lint filter 6 when flowing, so that the effect of automatically cleaning the lint filter 6 using the drain water flow is achieved.

In an embodiment of the present invention, a plurality of lint filters 6 are distributed on the sidewall 102 of the inner tub. Since each lint filter 6 is distributed symmetrically with respect to the axis of the inner tub 1, the filtering effect of the washing machine is improved. In addition, since the center of the inner tank 1 can be leveled, the eccentric rotation of the inner tank can be effectively prevented.

In an embodiment of the present invention, as shown in FIG. 1, a plurality of drain holes 7 are distributed in the sidewall 102 of the inner tub 1 at the upper end of the inner tub 1 . The inner tub 1 is rotatably fitted in the outer tub 31 , and the outer tub 31 constitutes the inner tub support member 3 . Each drain port 7 communicates the inside of the inner tank 1 with the outer tank 31 outside the inner tank 1 . Therefore, the wash water flowing out of the drain port 7 of the inner tank 1 can be collected in the outer tank 31 and then discharged to the outside through the drain pipe communicating with the bottom of the outer tank 31 . Preferably, in order to prevent the washing water from scattering to the outside, the outer tank lid 12 for appropriately opening and closing the mouth of the outer tank may be installed in the outer tank 31 .

Alternatively, as shown in FIG. 2, a plurality of drain ports 7 are distributed at the upper end of the inner tank 1, and a collection tank 32 is provided below the inner tank 1. As shown in FIG. Further, the side wall 102 of the inner tank is provided with a channel 9 extending vertically downward. The upper ends of the channels 9 face and communicate with the drain port 7 one-on-one, and the lower ends of the channels 9 both extend into the collection tank 32 . The drain port 7 communicates the inside of the inner tank 1 with the flow path 9 outside the inner tank 1, and the water that has risen to the tank mouth 101 of the inner tank due to the centrifugal force is discharged from the drain port 7 to the flow path 9. After being guided through the channel 9, it is used to flow into the collection tank 32 outside the inner tank 1. As shown in FIG. Preferably, the collection tank 32 and the inner tank 1 are installed coaxially. Moreover, the radial size of the opening of the collection tank 32 is larger than the radial size of the inner tank 1 . More preferably, at least the lower end of the inner tank 1 extends into the water collecting tank 32 and a space is maintained between the outer wall of the inner tank 1 and the inner wall of the water collecting tank 32 . As a result, all the waste water can flow into the collection tank 32 while ensuring the rotation of the inner tank.

As shown in FIG. 3, in the embodiment of the present invention, the structure of the centrifugal valve 8 is installed in the inner tank 1, and is installed in the inner tank 1 with a dirt discharge hole 61 through which water flows. and a centrifugal valve 8 provided corresponding to the dirt discharge hole 61 . A valve core of the centrifugal valve 8 closes the dirt discharge hole 61 . Further, when the rotation speed of the inner tank 1 reaches a predetermined value, the valve core of the centrifugal valve 8 is opened under the action of centrifugal force. Preferably, centrifugal valve 8 further includes an elastic member. The elastic member is sandwiched between the valve core and the inner tank 1 , and applies a restoring force to the valve core to move the valve core and close the dirt discharge hole 61 . The above-mentioned centrifugal valve 8 may have any valve body structure in the prior art capable of opening the hole under the action of centrifugal force. Of course, the centrifugal valve 8 of the present application may be of any conventional construction driven by centrifugal force during rotation of the inner tub to open and close the dirt discharge hole 61 accordingly. In addition, in the present application, the valve installed in the dirt discharge hole 61 is not limited to the centrifugal valve 8. For example, an electric control valve, a hydraulic valve, or other type of valve capable of controlling the opening and closing of the dirt discharge hole 61 may be used. .

As shown in FIGS. 1-3, in this embodiment, the centrifugal valve 8 can be installed as follows. That is, the side wall 102 of the inner tank is provided with a dirt discharge hole 61, and the centrifugal valve 8 is mounted inside the side wall 102 of the inner tank. The centrifugal valve 8 includes a holder 65 mounted inside the inner tank 1 . A hinged counterweight 62 is attached to the holder 65 . Further, the dirt discharge hole 61 is provided with a vertically movable valve plug 64 . A valve plug 64 is hinged to the counterweight 62 . A return spring 66 is sandwiched between the valve plug 64 and the side wall 102 of the inner tank. As a result, when the counterweight 62 moves away from the axis of the inner tank 1 due to the action of centrifugal force when the inner tank 1 rotates, the valve plug 64 moves in the axial direction of the inner tank 1 at the hinge connection portion. As a result, the dirt discharge hole 61 is opened.

In embodiments of the present invention, the lint filter 6 may be any lint filtering device in the prior art capable of collecting lint in the wash water.

As shown in FIGS. 4 and 5, the lint filter 6 in the present application can be installed as follows. The lint filter 6 includes a casing 70 . The casing 70 is engaged and mounted inside the sidewall 102 of the inner tank. Also, the casing 70 and the inner tank 1 surround the filtration chamber 60 . A first opening 711 and a second opening 712 are provided in the casing 70 of the lint filter 6 on opposite sides in the rotation direction of the inner tub 1 . A valve element 74 rotatable around an axis is installed in each of the first opening 711 and the second opening 712 . The rotation axis of the valve body 74 is parallel to the axis of the inner tank 1 . The valve body 74 receives an impact from the water flow and rotates toward the inside of the casing 70 to open the opening. . As a result, when the inner tank 1 rotates around the axis, the water flow impacts the valve element 74 of one opening to rotate it inward and open the corresponding opening, but the valve element 74 of the other opening is opened. Body 74 is positionally restrained by casing 70 to close the corresponding opening. As a result, the effect of selectively opening and alternatively closing the openings on both sides of the lint filter 6 is achieved. In this manner, the first opening 711 and/or the second opening 712 constitute the openable and closable water inlet 71 of the lint filter 6 . A spout 72 is provided on the side of the casing 70 facing the inside of the inner tank 1 and/or on the upper and lower sides. The spout 72 is provided with a filtering structure 73 for filtering lint on the outflowing water stream. As a result, lint in the water flow passing through the filter chamber 60 of the lint filter 6 is blocked in the filter chamber 60 by the filtering structure 73, so that the lint in the inner tub 1 can be collected.

In the embodiments of the present invention, the filtering structure 73 is not limited to the filter hole structure illustrated in the present invention, but may be any conventional structure such as a filter net, a filter grid, a filtering comb 600, or a combination thereof. . Moreover, the filtering structure 73 is integrally installed with the casing 70 in the embodiment of the present invention. However, the filtering structure 73 is not limited to this, and the filtering structure 73 may be a single member. The filtering structure 73 installed alone is attached to the casing 70 or the inner tank 1 . In this case as well, it is possible to realize the effect of performing the lint filtering process on the passing water stream.

In the process of washing clothes, the inner tub 1 rotates washing water clockwise or counterclockwise. Then, the washing water pushes open the check valve 74 installed on the side wall, enters the lint filter 6, passes through the filtering structure 73 on the front side plate and the opposite side plate of the lint filter 6, and is filtered. After that, it is discharged from the water discharge port 72 formed of filter holes. As a result, the lint remains in the filtration chamber 60, and the filtration of the wash water in the inner tank 1 is completed.

The valve body 74 may be installed only on one side of the lint filter 6 . That is, the water inlet 71 may be installed only on one side of the lint filter 6 . Such a lint filter can function to filter lint only when the inner tub 1 rotates in one direction. As a preferred method, as shown in FIGS. 4 and 5, if water inlets 71 with check valves 74 are installed on both left and right sides of the lint filter 6, filtering effect in two directions can be achieved. In this case, the cleaning water can enter the lint filter 6 regardless of whether the inner tub 1 rotates clockwise or counterclockwise, so that the filtering action is more comprehensive.

As shown in FIGS. 6 to 12, a washing machine will be described in this embodiment. The washing machine includes a housing 2 . An inner tank 1 is provided in the housing 2 . The axis of the inner tank 1 is set vertically. The upper end of the inner tank 1 is opened to form a tank port 101 of the inner tank, and the bottom end is sealed to form an inner tank bottom 103 . A side wall 102 of the inner tank connects between a tank port 101 and an inner tank bottom 103 of the inner tank. Further, at least the intermediate and lower tank walls of the inner tank 1 are not provided with through-holes so that the inside of the inner tank 1 constitutes a water storage tank installed so that the ceiling is open. A door 4 that can be opened outward is attached to the upper end of the housing 2 of the washing machine. Therefore, the purpose of putting clothes into the inner tub 1 from the tub port 101 of the inner tub after the door 4 is opened is realized. A lower portion of the inner tub 1 is mounted in a housing 2 of the washing machine via an inner tub supporting member 3 . The inner tank support member 3 is installed coaxially with the inner tank 1 . The inner tub support member 3 is connected to the housing 2 of the washing machine via a vibration damping suspension rod or a vibration damping support leg. This achieves the purpose of mounting the inner tub supporting member 3 in the housing 2 of the washing machine in a vibrating manner. In addition, the center of the inner tub bottom 103 is installed coaxially with the motor shaft of the driving motor 5 of the washing machine in order to rotate the inner tub 1 . Both the inner tank 1 and the drive motor 5 are fixedly attached to the inner tank supporting member 3 . Preferably, the inner tub bottom 103 and the driving motor 5 are installed on both upper and lower sides of the inner tub supporting member 3, respectively. A drive motor 5 is fixedly connected to the inner tank support member 3 . A motor shaft of the drive motor 5 passes through the inner tank supporting member 3 via a bearing and is coaxially and fixedly connected to the inner tank bottom 103 . Moreover, the motor shaft of the drive motor 5 is rotatable with respect to the inner tank support member 3 . Thus, the inner tub 1 and the drive motor 5 are attached to the inner tub support member 3, and the inner tub 1 can be rotated independently by the action of the drive motor 5, thereby realizing the purpose of washing the clothes inside. .

Further, a relatively rotatable stirring structure is installed in the inner tank 1 . The stirring structure can be any conventional device such as, for example, a pulsator 10 or a stirring bar. Thus, under the action of the driving motor 5, the inner tub 1 and/or the agitating structure are rotationally driven to form various water streams in the inner tub, which are used to treat the clothes in the inner tub. . In addition, a balance ring 11 is installed in the inner tub 1 to ensure stability during rotation of the inner tub. Preferably, the balancing ring 11 is located at the mouth 101 of the inner tank.

In addition, since the inner tub forms a water storage tank when the washing machine performs washing, the clothes come into contact only with the washing water in the inner water storage tub during the washing process. This prevents the washing water from cross-flowing between the inner and outer tanks, causing the washing water between the inner and outer tanks to flow into the inner tank and contaminate the clothes. Cleanliness of machine washing is greatly improved. In addition, it is possible to avoid a situation in which washing of the clothes by the washing machine is not thorough due to contamination of the space between the inner tub and the outer tub with the washing water.

In the embodiment of the present invention, the water flow separated from the clothes in the inner tub 1 of the washing machine is discharged to the outside, and the inner tub 1 is sealed and stored during the operation process of the washing machine for normal washing. , set as follows.

The washing machine in an embodiment of the invention can be any washing machine in the prior art with an inner tub 1 forming a rotatable water reservoir. The inner tank 1 has a tapered shape in which the tank diameter gradually increases from the bottom to the top. At least one drainage port 7 is installed in the cross section of the maximum diameter of the ceiling of the inner tank 1 . Therefore, during the normal washing and rinsing process of the inner tank 1, the washing water does not flow out to the drain port 7, and the inner tank 1 directly constitutes a water tank for storing washing water and rinsing water. Thus, the washing water and rinsing water stored in the inner tub are used to wash or rinse the clothes. On the other hand, when the rotation speed of the inner tank 1 becomes higher than a predetermined value in the process of dewatering and draining the inner tank 1, the wash water receives centrifugal force and flows upward, and reaches the ceiling of the inner tank 1. It flows to the installed drain port 7 and is smoothly discharged from the inner tank 1 to the outside. This achieves the purpose of allowing the washing machine having the non-perforated inner tub to normally execute the spin-drying program. The washing machine according to the embodiment of the present invention is not limited to the structure shown in the drawings. For example, as shown in FIG. 6, a conventional general washing machine may be adopted, in which the inner tub 1 of the washing machine does not have dewatering holes at least in the middle and lower parts, and the water storage tank is used when washing the washing machine. A washing machine that forms a

In addition, in order to ensure the sealing of the inner tank 1, an inner tank cover capable of opening and closing the inner tank opening 101 is installed in the inner tank 1, and the opening and closing of the inner tank opening 101 is properly performed. good. In addition, a centrifugal valve 8 for properly opening and closing the drain port 7 may be installed in the inner tank 1 in order to prevent washing water from being accidentally discharged from the drain port 7 . As a result, the centrifugal valve 8 normally closes the drain port 7, but when the washing machine is dehydrating, after the rotation speed of the inner tub is controlled to reach a predetermined value, the centrifugal valve 8 is closed. The valve core opens the drainage port 7 by centrifugal force, thereby realizing the effect of smoothly draining water (not clearly shown in the figure).

As shown in FIGS. 7 to 12, in the embodiment of the present invention, the inner tub 1 of the washing machine serves as a water storage tank, so that during the washing process of the washing machine, lint that falls off the clothes during washing remains in the washing water. As a result, when the washing machine drains the water, the lint waste flows toward the drain port 7 together with the waste water, and the lint waste accumulates in the drain port 7, causing a problem of clogging. In order to solve the above problem, in the present invention, a lint filter 6 is provided in the inner tub 1, which is a rotatable water storage tank of the washing machine. The lint mixed in the drain water flowing from the inner tank 1 toward the drain port 7 is filtered by the lint filter 6 and dammed up. As a result, it is possible to filter and block the lint in the drainage from the inner tub of the washing machine to the outside. The problem of jamming 7 is effectively avoided.

In embodiments of the present invention, the lint filter 6 may be of any conventional construction capable of filtering and collecting lint in the wash water. For example, the lint filter 6 is one or a combination of a lattice structure, a mesh structure, and a comb-tooth structure covering the drain port 7, and has a lattice structure of openwork lattice holes, a mesh structure of openwork holes, and a comb-tooth structure. , etc. constitute the watermark filtering gap of the lint filter 6 . The watermark gap allows the drainage water flow to pass through, and the lint in the drainage water flow is filtered by the lint filter 6 and dammed up.

In an embodiment of the present invention, the lint filter 6 may be a member integrated with the inner tub 1 . Alternatively, the lint filter 6 may be an independent member fixedly attached to the inner tub 1 . Preferably, an annular balance ring 11 is attached to the inner tub mouth 101 at the ceiling of the inner tub 1, and the lint filter 6 is fixedly connected to the balance ring 11 or integrally molded. be done. As a result, the effect of fixing the lint filter 6 to the inner tub 1 and rotating it together is achieved.

As shown in FIGS. 6 to 12, in the embodiment of the present invention, the lint filter 6 has an annular structure that is provided on the inner circumference of the side wall 102 of the inner tub and covers the drain port 7. As shown in FIGS. The upper and lower sides of the ring-shaped lint filter 6 are connected to the inner wall of the inner tub 1 respectively, and the lint filter 6 and the inner wall of the inner tub 1 jointly surround the water passage space 602 . The water passage space 602 communicates with the outside of the inner tank 1 through the drain port 7 . Also, the water passage space 602 communicates with the inside of the inner tank 1 through the filtration gap of the lint filter 6 .

Of course, in the embodiment of the present invention, the upper and/or lower sides of the annular lint filter 6 are indirectly connected to the inner wall of the inner tub 1 via other members to surround the water passage space 602. may For example, the balance ring 11 is attached to the tank port 101 of the inner tank, the lower side of the ring-shaped lint filter 6 is connected to the inner wall of the inner tank 1, and the upper side of the ring-shaped lint filter 6 is connected under the balance ring 11. side. As a result, the annular lint filter 6, the balance ring 11 and the inner wall of the inner tank 1 jointly surround the water passage space 602 (not shown in the figure).

By connecting both upper and lower sides of the ring-shaped filtering device to the inner wall of the inner tank to form a ring-shaped water passage space 602, all the waste water flow of the inner tank is filtered by the lint filter 6, and then the water passage space 602 It is necessary to let it flow in and discharge it to the outside from the drain port 7 of the inner tank. This ensures a significant technological advance in preventing lint from clogging the drain port 7 of the non-perforated inner tub by performing lint filtering on the entire drain water stream of the washing machine.

In the embodiment of the present invention, the inner tank 1 has a tank-like structure with a vertical axis and an open upper end. Moreover, the side wall 102 of the inner tank has a tapered shape with a large radial size at the upper end and a small radial size at the lower end. At least one drain port 7 is provided in the ceiling of the side wall 102 of the inner tank. A ring-shaped lint filter 6 is provided on the inner peripheral side of the ceiling of the inner tub 1 . Each drain port 7 communicates with a water passage space 602 surrounded by the ring-shaped lint filter 6 and the inner wall of the inner tank 1 . As a result, the drain water flow that has risen to the ceiling due to the action of the centrifugal force during rotation of the inner tank is filtered by the lint filter 6, and then discharged to the outside from the drain port 7 via the water passage space 602. be done.

As shown in FIGS. 6 to 12, in the embodiment of the present invention, the lint filter 6 includes a plurality of filter comb teeth 600 distributed at intervals along the circumferential direction of the inner tub, and adjacent filter comb teeth 600 are arranged at intervals. The comb tooth gaps d between the teeth 600 constitute filtering gaps through which water flows. The comb tooth gap d is smaller than the hole diameter D of the drain port 7 . Preferably, the filter comb tines 600 are of sheet-like construction. Assuming that the included angle between the sheet-like filtering comb teeth 600 and the radial cross section of the inner tank 1 is a, a is 0 or more and less than 90. The above cross section is the cross section of the inner tank located at the connection point between the outer peripheral side of the sheet-like filtering comb teeth 600 and the inner tank, and the included angle a is between the above cross section and the cross section where the sheet-like filtering comb teeth 600 are located. is the included angle of

In an embodiment of the present invention, the annular lint filter 6 has a tapered shape that gradually contracts from bottom to top. The lint dammed up by the lint filter 6 moves upward due to the impact of the drain water flow. As a result, the lint caught on the lint filter 6 retreats from the lower portion of the tapered lint filter 6, so that the lint is prevented from accumulating under the tapered lint filter 6.例文帳に追加Moreover, even a small flow of water can pass through the filtering gap of the lint filter 6, so that the washing machine can smoothly drain water.

As shown in FIGS. 7-9, in an embodiment of the present invention, the annular lint filter 6 can be divided into a tubular upper collecting portion 605 and a tapered lower filtering portion 604 . The collection part 605 has a tank shape coaxial with the inner tank 1 . Preferably, in order to improve the lint collection efficiency of the collection unit 605, the collection unit 605 is provided with a collection tank 606 that is recessed toward the water passage space 602 and that opens radially of the inner tank. .

As shown in FIGS. 10-12, in an embodiment of the present invention, the annular lint filter 6 can be divided into an upper collecting portion 605 and a lower filtering portion 604 with different degrees of taper. The taper degree a2 of the tapered collection portion 605 is greater than the taper degree a1 of the tapered filtering portion 604. FIG.

By dividing the ring-shaped lint filter 6 into two upper and lower parts with different degrees of taper, a bend is formed at the connection point of the two parts. As a result, the lint can pass over the slope of the filtration part with a taper angle of a1 and be collected at the bend by the action of the impact of the water stream and the centrifugal force when the inner tank rotates. In addition, since the collecting portion 605 with the taper angle of a2 has a certain length of extension, the collected lint waste is dammed up at the point. Furthermore, since the filtered lint is collected at the corner, no or very little lint remains in the filtration portion 604 of the lint filter 6 . Therefore, the wastewater can smoothly enter the water passage space 602 surrounded by the lint filter 6 and the inner tub, and the flow of the wastewater from the washing machine is not hindered.

Preferably, as shown in FIGS. 7 to 12, in the embodiment of the present invention, in order to further improve the filtration efficiency of the lint filter 6, the filtering comb teeth 600 of the lint filter 6 are provided with water passage spaces 602. A collection reservoir 606 is provided that is recessed inwardly and is positioned open to the interior of the inner reservoir. Also, the collection tank 606 is installed in the collection part 605 of the filter comb 600 . As a result, the lint that has been impacted by the water flow is caught in the collection tank 606, so that the lint is prevented from accumulating on the filtering section 604. FIG.

In an embodiment of the invention, each filtering comb tine 600 is continuous through at least one retaining ring. Preferably, each filtering comb tine 600 is integrally installed with a fixed ring. More preferably, as shown in FIGS. 7 to 12, the ceiling of each filtering comb tooth 600 is connected through a water stop plate 601. FIG. The water stop plate 601 constitutes a fixed ring. Moreover, the water stop plate 601 and the filtering comb teeth 600 are integral members. As a result, the lint filter 6 composed of the plurality of filtering comb teeth 600 forms one annular integrated structure, so that the integrity of the lint filter 6 is guaranteed, and mounting is facilitated.

In the embodiment of the present invention, the lower end of each filtering comb tooth 600 is connected to the inner wall of the inner tub 1, and the upper end is connected to the inner wall of the inner tub 1 via a water stop plate 601. FIG. As a result, the upper and lower ends of the lint filter 6 composed of the filtering comb teeth 600 are connected to the inner tank 1, respectively, so as to surround the water passage space 602 through which the waste water flow passes. Therefore, the wastewater flow that flows upward while adhering to the inner wall of the inner tank 1 under the action of centrifugal force is filtered by the lint filter 6, passes through the water passage space 602, and exits the drain port 7. Discharged to the outside. Moreover, since the water flow is cut off by the water stop plate 601, the water flow of the washing machine is prevented from flowing out of the water passage space 602 in the upper part and scattering from the tub opening 101 of the inner tub.

In the embodiment of the present invention, the water stop plate 601 is horizontally installed and has an annular shape extending in the radial direction of the inner tank 1 . The annular water stop plate 601 has an inner periphery connected to the upper end of each filter comb tooth 600 and an outer periphery connected to the inner periphery of the inner tank 1 , so that the water stop plate 601 is entirely above the annular water flow space 602 . blocked by As a result, it is effectively prevented that the waste water flowing into the water passage space 602 overflows from the upper part and scatters from the inner tub, so that the smoothness of the waste water flow of the washing machine is effectively guaranteed.

In the embodiment of the present invention, as shown in FIG. 6, a plurality of drain holes 7 are distributed in the side wall 102 of the inner tank 1 at the upper end of the inner tank. The inner tub 1 is rotatably fitted in the outer tub 31 , and the outer tub 31 constitutes the inner tub support member 3 . Each drain port 7 communicates the inside of the inner tank 1 with the outer tank 31 outside the inner tank 1 . Therefore, the wash water flowing out of the drain port 7 of the inner tank 1 can be collected in the outer tank 31 and then discharged to the outside through the drain pipe communicating with the bottom of the outer tank 31 . Preferably, in order to prevent the washing water from scattering to the outside, the outer tank lid 12 for appropriately opening and closing the mouth of the outer tank may be installed in the outer tank 31 .

Alternatively, a plurality of drain ports 7 are distributed at the upper end of the inner tank 1, and a collecting tank 32 is provided below the inner tank 1. As shown in FIG. Further, the side wall 102 of the inner tank is provided with a channel 9 extending vertically downward. The upper ends of the channels 9 face and communicate with the drain port 7 one-on-one, and the lower ends of the channels 9 both extend into the collection tank 32 . The drain port 7 communicates the inside of the inner tank 1 with the flow path 9 outside the inner tank 1, and the water that has risen to the tank mouth 101 of the inner tank due to the centrifugal force is discharged from the drain port 7 to the flow path 9. After being guided through the channel 9, it is used to flow into the collection tank 32 outside the inner tank 1. As shown in FIG. Preferably, the collection tank 32 and the inner tank 1 are installed coaxially. Moreover, the radial size of the opening of the collection tank 32 is larger than the radial size of the inner tank 1 . More preferably, at least the lower end of the inner tank 1 extends into the water collecting tank 32 and a space is maintained between the outer wall of the inner tank 1 and the inner wall of the water collecting tank 32 . As a result, it becomes possible to allow all of the waste water to flow into the collection tank 32 while ensuring the rotation of the inner tank (not clearly shown in the figure).

The above descriptions are of preferred embodiments of the invention only, and are not intended to limit the invention in any form. Although the present invention has been disclosed above through preferred embodiments, it is not intended to limit the present invention. Within the scope of the technical scheme of the present invention, slight modifications or supplements that can be implemented by those skilled in the art using the technical content presented above are equally modified and equivalent embodiments, and all of them are equivalent to the present invention. It does not deviate from the content of the technical plan. In addition, any simple modifications, equivalent variations and supplements added to the above embodiments based on the technical essence of the present invention are all within the scope of the scheme of the present invention.

REFERENCE SIGNS LIST 1 inner tank 2 housing 3 inner tank support member 4 door 5 drive motor 6 lint filter 7 drainage port 8 centrifugal valve 9 flow path 10 pulsator 11 balance ring 12 outer tank lid 31 outer tank 32 collection tank 60 filtration chamber 61 dirt discharge hole 62 Counterweight 64 Valve plug 65 Holder 66 Return spring 600 Filtration comb teeth 601 Water stop plate 602 Water passage space 604 Filtration part 605 Collection part 606 Collection tank 70 Casing 71 Water inlet 72 Water discharge port 73 Filtration structure 74 Valve body 711 First opening 712 second opening 101 mouth of inner tank 102 side wall of inner tank 103 bottom of inner tank

Claims (20)

A washing machine comprising an inner tub forming a rotatable water storage tank, wherein the inner tub is provided with a lint filter. The lint filter has a filtering chamber inside, and the lint filter is provided with a water inlet and a water outlet for communicating the filtering chamber with the inside of the inner tank, and the water inlet and the water outlet. is provided with a check valve for controlling the flow direction of the water flow, and the filter chamber, the spout, the check valve, or a combination of them is provided with a thread in the water flow passing through 2. A washing machine according to claim 1, further comprising a filtering structure for filtering debris. The inner tank is provided with a dirt discharge hole, the inner tank is fitted in the outer tank, the dirt discharge hole communicates the filtration chamber and the outer tank,
Alternatively, the inner tank is provided with a dirt discharge hole, a collection tank is provided below the inner tank, and a channel extending vertically downward is provided on a side wall of the inner tank. The laundry according to claim 2, wherein a lower end of the flow path extends into the water collecting tank, and the dirt discharge hole communicates the filtration chamber and the flow path. machine. The filtration chamber of the lint filter is equipped with a valve for controlling opening and closing of the dirt discharge hole,
Preferably, the valve is a centrifugal valve, and when the rotation speed of the inner tank reaches a predetermined value, the valve core of the centrifugal valve structure automatically opens the dirt discharge hole under the action of centrifugal force. 4. A washing machine according to claim 3. The inner tank has a vertical axis and a tank-like structure with an open upper end. 5. The washing machine according to any one of claims 1 to 4, wherein the tapered shape has a large radial size and a small radial size at the lower end. A plurality of said lint filters are distributed on the side wall of said inner tank, and each said lint filter is distributed at intervals symmetrically with respect to the axis of said inner tank. 5. The washing machine according to 5. The inner tank has a plurality of washing water levels, and the lint filter is at least partially higher than the lowest washing water level in the inner tank and at least partially lower than the highest washing water level in the inner tank. 6. The washing machine according to claim 5, characterized in that: A plurality of drain holes are distributed in the upper end of the inner tank, the inner tank is rotatably fitted in the outer tank, and each drain hole communicates the inner tank and the outer tank,
Alternatively, a drainage port is provided at the upper end of the inner tank, a collection tank is provided below the inner tank, and a channel extending vertically downward is provided on a side wall of the inner tank. 6. The washing machine according to claim 5, wherein said channel has an upper end communicating with said drain port and a lower end extending into said collecting tank. The centrifugal valve is
a valve core that movably seals or opens the dirt discharge hole;
a centrifugal device that is connected to the valve core and pulls the valve core by centrifugal force to open the dirt discharge hole when the inner tank rotates at high speed;
5. The apparatus according to claim 4, further comprising an elastic member connected to the valve core to move the valve core against centrifugal force and close the dirt discharge hole when the inner tub rotates at a low speed. washing machine. The lint filter includes a casing, the casing being engaged and mounted inside the sidewall of the inner tub, the casing and the inner tub surrounding a filtration chamber, and the casing of the lint filter having , a first opening and a second opening are provided on opposite sides in the rotation direction of the inner tank, and a valve body rotatable around an axis is provided in the first opening and the second opening, respectively; The rotation axis of the valve body is parallel to the axis of the inner tank, and the valve body receives an impact from the water flow and rotates toward the inside of the casing to open the opening. The position of the casing is restricted so that it cannot rotate to the outside of the casing. 6. A washing machine according to claim 5, wherein the washing machine is provided with a grid structure for lint filtering of the exiting water stream. A washing machine comprising an inner tub forming a rotatable water storage tank, wherein the inner tub is provided with a drain port, and the drain port is provided with a lint filter. 12. The washing machine according to claim 11, wherein the lint filter is one or a combination of a grid structure, a mesh structure, and a comb structure covering the drain. The lint filter is a member integral with the inner tank, or the lint filter is an independent member fixedly attached to the inner tank,
12. The washing machine according to claim 11, wherein the inner tub is equipped with a balancing ring, and the lint filter is fixedly connected to or integrally formed with the balancing ring. machine. The lint filter is provided on the inner circumference of the side wall of the inner tub and has a ring-shaped structure covering the drain port, and the lint filter and the inner wall of the inner tub jointly surround the water passage space. The water passage space communicates with the outside of the inner tank through the drain port, and the water passage space communicates with the inside of the inner tank through the filtering gap of the lint filter,
Preferably, both upper and lower sides of the ring-shaped lint filter are directly or indirectly connected to the inner wall of the inner tank, respectively. a washing machine as described above. The inner tank has a vertical axis and has a tank-like structure with an open upper end. At least one drainage port is provided on the ceiling of the side wall of the inner tank, and the annular lint filter is provided on the inner peripheral side of the ceiling of the inner tank. The washing machine according to claim 14. The lint filter includes a plurality of filter comb teeth distributed at intervals along the circumferential direction of the inner tank, and the gaps between the adjacent filter comb teeth constitute filter gaps through which the water flow passes, The width d of the filtration gap is smaller than the hole diameter D of the drain port,
Preferably, the filter comb teeth have a sheet-like structure, and a is 0 or more and less than 90, where a is an included angle between the sheet-like filter comb teeth and the radial cross section of the inner tank. The washing machine according to claim 15, wherein 17. The washing machine according to claim 16, wherein the ring-shaped lint filter has a tapered shape that gradually shrinks from bottom to top. the ring-shaped lint filter is divided into an upper collecting section and a lower filtering section,
The collecting portion and the filtering portion have tapered shapes with different taper degrees, and the taper degree a2 of the collecting portion is greater than the taper degree a1 of the filtering portion, or the collecting portion has a cylindrical shape. , the filtering portion has a tapered shape,
Preferably, the filtration unit is provided with a collection tank that is recessed toward the inside of the water passage space and that is installed with an opening toward the inside of the inner tank. washing machine. 18. The washing machine according to claim 17, wherein the lower end of each filter comb tooth is connected to the inner wall of the inner tub, and the upper end is connected to the inner wall of the inner tub via a water stop plate. The water stop plate is horizontally installed and has an annular shape extending in the radial direction of the inner tank. 20. The washing machine as claimed in claim 19, wherein the washing machine is connected to the inner circumference of the inner tub.