CN111691118B

CN111691118B - Washing machine

Info

Publication number: CN111691118B
Application number: CN202010573721.7A
Authority: CN
Inventors: 薛威海; 孙世孔; 刘玉春; 陈贺
Original assignee: Hisense Refrigerator Co Ltd
Current assignee: Hisense Refrigerator Co Ltd
Priority date: 2020-06-22
Filing date: 2020-06-22
Publication date: 2022-09-13
Anticipated expiration: 2040-06-22
Also published as: CN111691118A

Abstract

The invention provides a washing machine, and belongs to the technical field of clothes washing equipment. The washing machine includes a housing; the drum is rotatably arranged in the shell, is of a non-porous structure for containing washing water, and is provided with a circulating port for discharging the washing water; the lifting rib is connected to the inner side wall of the roller corresponding to the circulation port and used for lifting falling and beating the washed objects; and the drain valve is installed in the lifting rib and has an extending state and a retracting state, so that when the drain valve is pressed, the drain valve extends out to seal the circulation port, and when the drain valve is pressed again, the drain valve retracts to open the circulation port. The washing machine can avoid the mutual connection of the inner drum and the outer drum, solve the problem of secondary pollution caused by the breeding and accumulation of mould dirt between the inner drum and the outer drum, and improve the health quality of clothes washing and protecting.

Description

Washing machine

Technical Field

The invention relates to the technical field of clothes washing equipment, in particular to a washing machine.

Background

Generally, a drum of a washing machine may accommodate laundry, and the drum is rotatably provided in a tub for providing water to be contained therein. The drum is formed with through holes, so that the water inside the tub flows into the drum via the through holes, and the washed matter moves with the rotation of the drum to eliminate dirt.

After long-term use of the washing machine structure, a large amount of dirt (water quality dirt, clothes impurities and the like) can be accumulated between the inner drum wall and the outer drum wall, mould of the dirt cannot be completely removed by a washing and brushing method, and the mould cannot be completely removed by an existing sterilization method. High-temperature sterilization has certain limitations, and clothes made of wool, down feather, chemical fiber and the like are not suitable for high-temperature sterilization, so that the influence caused by secondary pollution in the cylinder is more serious.

Disclosure of Invention

The present invention is directed to solving, at least in part, one of the technical problems in the related art. Therefore, the washing machine can realize the isolation of the inner drum and the outer drum during washing, avoid secondary pollution and has compact drainage structure without occupying the space of the drum.

A washing machine according to the present disclosure includes: a housing; the drum is rotatably arranged in the shell and is of a non-porous structure used for containing washing water, and a circulation port is arranged on the drum and used for discharging the washing water; the lifting rib is connected to the inner side wall of the roller corresponding to the circulation port and used for lifting falling and beating the washings; and the drain valve is installed in the lifting rib, has an open state and a closed state, so that when the drain valve is pressed, the drain valve stretches out to close the circulation port, and when the drain valve is pressed again, the drain valve retracts to open the circulation port.

The washing machine adopts a nonporous roller structure, the roller is used for containing washing water, the spatial interconnection between the roller and the outer cylinder is avoided, the problem of secondary pollution caused by the breeding and accumulation of mould dirt between the roller and the outer cylinder is solved, and the healthy quality of clothes washing and protecting is improved; in addition, no washing water exists between the roller and the outer cylinder, so that the water consumption can be saved by about 20%; the drainage structure is arranged at the lifting rib, so that the space of the roller is not occupied, and the volume capacity of the roller can be enlarged; the drain valve adopts the structure of push type, presses the drain valve once and can seal the circulation mouth on the cylinder, presses the drain valve once again and can open the circulation mouth again to realize the emission of washing water in the cylinder, the reliability is higher.

According to some embodiments of the present disclosure, the washing machine further comprises: the outer cylinder is covered on the outer side of the roller; and the switch motor is fixedly connected to the outer barrel and can press the drain valve to control the drain valve to be opened or closed.

The switch motor is provided with a telescopic shaft, and the operation of pressing the drain valve is performed when the shaft extends out.

According to some embodiments of the present disclosure, the drain valve includes: the shell is fixedly connected with the lifting rib, and an accommodating groove is formed in the shell; the guide rail is inserted in the accommodating groove and is provided with a sliding groove; the spring is connected between the guide rail and the bottom of the accommodating groove; the guide rail needle is provided with a connecting end and a moving end which are opposite, the connecting end is connected with the shell, the moving end can move in the sliding groove, an extending position point and a retracting position point are arranged on the stroke of the moving end, and when the moving end is positioned at the extending position point, the spring ejects the guide rail; when the moving end is at the retraction position point, the guide rail compresses the spring to be positioned in the accommodating groove.

The drain valve is mechanical switch structure, realizes the flexible of guide rail by the spring, by the position state of guide rail needle restriction guide rail, during the washing, the drain valve is in the encapsulated situation, and the guide rail needle is in the extended position point, and the flow opening on the guide rail will be sealed on the cylinder, when needing the drainage, presses the guide rail, and the guide rail needle moves to the withdrawal position point along the spout from the extended position point, and the guide rail withdraws to the storage tank in, and the flow opening is opened, and the washing water is discharged from the flow opening in the cylinder.

According to some embodiments of the present disclosure, the extending and retracting direction of the guide rail is defined as up and down, the highest point of the sliding groove is defined as a protruding position point, the sliding groove includes a first sliding groove extending downward from the protruding position point, a second sliding groove and a third sliding groove branching downward from a lower end of the first sliding groove, and a fourth sliding groove communicating the second sliding groove and the third sliding groove, an upper wall of the fourth sliding groove is an upward convex arc, and the highest point of the arc is a retracting position point.

The guide rail is pressed, the guide rail compression spring moves upwards, and the motion track of the guide rail needle reaches the retraction position point of the fourth sliding chute from the extension position point along the first sliding chute and the second sliding chute; and pressing the guide rail again, enabling the guide rail to continue to move upwards, enabling the guide rail needle to be separated from the retraction position point, enabling the guide rail to move downwards under the action of the elastic force of the spring, and enabling the guide rail needle to return to the extension position point along the third sliding groove and the first sliding groove.

According to some embodiments of the disclosure, a sealing head is connected to an end of the rail remote from the spring, the sealing head being capable of closing the flow-through hole.

According to some embodiments of the present disclosure, a plurality of lifting ribs are uniformly distributed on the roller, and each lifting rib is correspondingly connected with one drain valve.

According to some embodiments of the present disclosure, the drain valve located at the lowest position is closed when water is supplied to the washing machine, and other drain valves are opened; the drain valves are all closed during washing; and the drain valves are all opened during draining.

When water enters, the drain valve in the lowest lifting rib is closed, the drain valves in other lifting ribs are opened to be communicated with the outside to realize air pressure balance, the drain valves in the lifting ribs are all opened during water discharging, the drain valve at the lower end drains water, and the balance air pressure at the upper part can improve the speed of water entering and discharging to realize quick water entering and discharging.

According to some embodiments of the present disclosure, when the washing machine is supplied with water or drained of water, one of the drain valves is located at the lowest point.

According to some embodiments of the disclosure, further comprising: the positioning traction motor is fixed relative to the shell and is positioned at the rear side of the roller, and the positioning traction motor is connected with a positioning column through a traction spring; the positioning holes are formed in the bottom wall of the roller, the positioning columns can be matched with or separated from the positioning holes under the action of the positioning traction motor, and one of the drain valves is located at the lowest point in a matched state.

According to some embodiments of the disclosure, the lifting rib is detachably connected to the drum.

According to some embodiments of the present disclosure, the drum further comprises a main shaft connected to the bottom wall of the drum for driving the drum to rotate, the main shaft having a hollow channel; the sealing element is sleeved on the main shaft and fixed relative to the shell, and a water inlet cavity communicated with the hollow channel is formed in the sealing element; one end of the water inlet pipe is connected to the sealing piece, so that water flows from the water inlet pipe, through the water inlet cavity and the hollow channel into the roller when water enters.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a front view of a washing machine according to a first embodiment of the present disclosure;

FIG. 2 is an enlarged view of A of FIG. 1;

FIG. 3 is a front view of a washing machine according to the present disclosure;

fig. 4 and 5 are partial views of a washing machine according to a first embodiment of the present disclosure;

fig. 6 is a front view of a washing machine according to a second embodiment of the present disclosure;

fig. 7 is a partial view of a washing machine according to a second embodiment of the present disclosure;

fig. 8 is a partial sectional view of a drum of the washing machine according to the present disclosure;

fig. 9 is an enlarged view of the direction C of the drain valve in fig. 8 in a closed state;

fig. 10 is an enlarged view of the valve in fig. 8, in the open state C;

fig. 11 is a side view of a guide rail in a drain valve of a washing machine according to the present disclosure;

in the above figures: 1. a housing; 11. a front side; 12. a rear side; 13. a top plate; 2. a door assembly; 21. an outer door; 211. a movable cavity; 22. an inner door; 221. a circular ring part; 222. an edge portion; 23. a traction shaft; 24. a traction motor; 241. a traction motor wire; 242. a traction spring; 25. a magnetic gasket; 26. a bearing seat; 27. a rubber ring; 28. a support spring; 29. a limit baffle; 3. a detergent box; 41. a water supply pipe; 42. a water inlet pipe; 43. a drain pipe; 44. heating a tube; 45. a water supply valve; 5. a drum; 51. positioning holes; 52. a front end cover; 521. a cylinder mouth; 522. an extension portion; 53. a flow port; 6. an outer cylinder; 7. a motor; 8. a bearing; 9. a main shaft; 91. a hollow channel; 92. an aperture; 10. a seal member; 101. a water inlet cavity; 20. a vent valve; 30. lifting the ribs; 40. a drain valve; 41. a housing; 411. a containing groove; 42. a guide rail; 421. a chute; 4211. a first chute; 4212. a second chute; 4213. a third chute; 4214. a fourth chute; 422. a sealing head; 43. a spring; 44. a guide needle; 50. switching the motor; 60. positioning a traction motor; 601. a positioning column; 71. an extended position point; 72. a retracted position point.

Detailed Description

The invention is described in detail below by way of exemplary embodiments. It should be understood, however, that elements, structures, and features of one embodiment may be beneficially incorporated in other embodiments without further recitation.

Referring to fig. 1, a housing 1 forms a main appearance of a washing machine according to an embodiment of the present invention, and the housing 1 may include a front side 11, a left side, a right side, a rear side 12, and a top plate 13 for covering an upper side of the housing 1; an inlet for putting laundry is formed in the front surface 11.

A door assembly 2 for opening and closing the inlet is connected to the front side 11, and the door assembly 2 is rotatable with respect to the housing 1. The door assembly 2 is rotated in a direction away from the housing 1, the input port is opened, laundry can be put in through the input port, and the door assembly 2 is rotated in a direction close to the housing 1, and the input port is closed.

The washing machine further comprises a detergent box 3, wherein the detergent box 3 is used for storing additives such as washing agent, clothes softener or bleaching agent, and the detergent box 3 can be drawn into or out of the shell 1. The detergent box 3 is connected to a water supply pipe 41, and the other end of the water supply pipe 41 is connected to an external water source such as a tap to allow the external water source to flow into the water supply pipe 41, and the water supply pipe 41 is further connected to a water supply valve 45 for limiting water supply. If the water supply valve 45 is opened and water is supplied through the water supply pipe 41, the additives in the detergent box 3 are mixed with the water and flow into the drum 5 (described later). The water supply valve 45 is provided with a flow meter which can control the water inflow.

The washing machine may further include an outer tub 6, the outer tub 6 being hung on the top plate 13 by a spring and supported by a damper located at a lower side, whereby vibration of the outer tub 6 is buffered by the spring and the damper. The specific structure is the prior art and is not detailed here.

The drum 5 is rotatably disposed in the outer tub 6, and the washing machine of the present embodiment is a front-in type washing machine in which the drum 5 rotates about a horizontal axis, and the side to which laundry is put is a front side and the side opposite thereto is a rear side; in addition, for convenience of description, a wall of the drum 5 at the rear side is referred to as a bottom wall.

The wall of the roller 5 is arranged without holes, and the front end surface of the roller 5 is rotatably sealed with the door component 2, so that the water in the roller 5 can not flow into the outer barrel 6, and the roller 5 has the double functions of a washing barrel and a water containing barrel.

The structure of the imperforate roller 5 is adopted, so that the spatial interconnection between the roller 5 and the outer cylinder 6 is avoided, the problem of secondary pollution caused by the breeding and accumulation of mould dirt between the roller 5 and the outer cylinder 6 is solved, and the healthy quality of clothes washing and protecting is improved; in addition, no washing water exists between the roller 5 and the outer cylinder 6, so that the water consumption can be saved by about 20%.

The drum 5 is driven to rotate by a motor 7, the motor 7 is connected to the rear side of the outer tub 6, the drum 5 is connected to the motor 7 through a main shaft 9, and the motor 7 can control the rotation direction and the rotation speed of the drum 5. The main shaft 9 is connected with the outer cylinder 6 through the bearing 8, so that abrasion between the main shaft 9 and the outer cylinder 6 can be reduced. The main shaft 9 has a hollow passage 91 therein, and the hollow passage 91 communicates with the inside of the drum 5.

The washing machine of the present disclosure may include a water inlet pipe 42, one end of the water inlet pipe 42 being communicated with the detergent box 3, and the other end being communicated with the hollow passage 91 of the main shaft 9. When water is supplied, the additive in the detergent box 3 is mixed with water and then flows into the drum 5 through the water inlet pipe 42 and the hollow passage 91.

Referring to fig. 4 and 7, arrows indicate the flowing direction of water when water enters, the washing machine may include a sealing member 10 sleeved on a main shaft 9, the sealing member 10 is fixed relative to the housing 1, the main shaft 9 is connected to the sealing member 10 in a rotating and sealing manner, a water inlet cavity 101 is formed inside the sealing member 10, meanwhile, a hole 92 communicated with the hollow channel 91 is radially formed in the main shaft 9, and the water inlet pipe 42 is connected to the water inlet cavity 101 of the sealing member 10. When water is supplied, the additive in the detergent box 3 is mixed with water and then flows into the drum 5 through the water inlet pipe 42, the water inlet cavity 101, the hole 92 and the hollow channel 91.

The axis of the hollow channel 91 is collinear with the axis of the main shaft 9, and the axis of the hole 92 is perpendicular to the axis of the hollow channel 91; a plurality of holes 92 may be evenly distributed on the main shaft 9 to facilitate the fluency of the water intake.

In some embodiments of the washing machine of the present disclosure, the sealing member 10 is connected to the main shaft 9 through the bearing 8, the bearing 8 has two, and a gap between the two bearings 8 forms the water inlet chamber 101, where the bearing 8 may be a sealing bearing to achieve sealing between the water inlet chamber 101 and the bearing 8.

With continued reference to fig. 4, the sealing member 10 may be a separate component disposed on the spindle 9 between the outer cylinder 6 and the motor 7, and the sealing member 10 is made of plastic material, so as to avoid the problem of metal corrosion and reduce the weight. The sealing element 10 may be fixedly connected to the outer cylinder 6 by means of screws or may be fixedly connected to a motor base, so that the sealing element 10 may remain stationary while the drum 5 rotates.

Alternatively, referring specifically to fig. 7, the sealing member 10 is a part of the outer cylinder 6, specifically, the center of the bottom wall of the outer cylinder 6 extends backwards to form the sealing member 10, and the sealing member 10 and the main shaft 9 are connected by the bearing 8, so that the bearing 8 is required to be arranged at the connection position of the sealing member 10 and the outer cylinder 6 with the main shaft 9 respectively when the sealing member 10 is a single component, and the use of the bearing 8 can be saved when the sealing member 10 is a part of the outer cylinder 6.

The washing machine disclosed by the invention realizes water inlet by utilizing the main shaft 9 of the original washing machine, can be realized by only arranging the hollow channel 91 and the sealing element 10 on the main shaft 9 of the original washing machine, avoids great change on the structure of the washing machine, and has the advantages of simple structure and lower cost.

In some embodiments of the washing machine of the present disclosure, referring to fig. 6, a vent valve 20 is further disposed on the bottom wall of the drum 5, the vent valve 20 is disposed near the main shaft 9, and when the air pressure in the drum 5 reaches a certain value, the vent valve 20 is opened, so that the washing water can smoothly enter the drum 5.

Referring to fig. 3 and 8, the washing machine further includes a lifting rib 30 provided in the drum 5 to continuously lift the falling and beating laundry so as to wash the laundry.

The water discharge valve 40 is arranged in the lifting rib 30, when the water discharge valve 40 is opened, water in the roller 5 can flow into the outer barrel 6 from the water discharge valve 40, and when the water discharge valve 40 is closed, the roller 5 is isolated from the outer barrel 6. Thus, the drain valve 40 is provided at the lift rib 30, thereby draining the drum 5.

In some embodiments of the washing machine of the present disclosure, referring to fig. 10, a circulation port 53 is provided on the drum 5 at a position corresponding to the lifting rib 30, the lifting rib 30 has a through hole, and when the circulation port 53 is not closed, the washing water in the drum 5 can be drained from the circulation port 53 into the outer tub 6; the drain valve 40 is connected to the lifting rib 30 corresponding to the circulation port 53; with continued reference to fig. 9 and 10, the drain valve 40 has an open state and a closed state, so that when the drain valve 40 is pressed, the drain valve 40 is extended to close the flow port 53, and when the drain valve 40 is pressed again, the drain valve 40 is retracted to open the flow port 53, thus achieving drainage of the drum 5.

The drain valve 40 is a press type structure, the circulation port 53 on the drum 5 can be sealed by pressing the drain valve 40 once, and the circulation port 53 can be opened by pressing the drain valve 40 once again, so that the washing water in the drum 5 can be discharged, and the reliability is high.

The end of the lifting rib 30 adjacent to the wall of the drum 5 is recessed with a groove in which the drain valve 40 is fixedly attached by screws.

In one embodiment of the washing machine of the present disclosure, with continued reference to fig. 9-11, the drain valve 40 is a mechanical switch structure including a housing 41, a guide rail 42, a spring 43, and a guide rail needle 44.

The housing 41 is fixedly connected to the groove of the lifting rib 30, the housing 41 is provided with a receiving groove 411, the guide rail 42 is inserted into the receiving groove 411 and can be extended and retracted in the receiving groove 411, when the guide rail 42 extends out of the receiving groove 411 toward the roller 5, the flow opening 53 on the roller 5 can be closed by the guide rail 42 (fig. 9), when the guide rail 42 is retracted toward the receiving groove 411, the flow opening 53 is opened by the guide rail 42 (fig. 10), and the washing water of the roller 5 is discharged from the flow opening 53.

The extension and retraction of the guide rail 42 relative to the housing 41 are realized by a spring 43 and a guide rail needle 44, specifically, the spring 43 is connected between the guide rail 42 and the bottom of the accommodating groove 411; the guide rail 42 is provided with a slide groove 421, one end of the guide rail needle 44 is connected with the housing 41, the end is defined as a connecting end, and the other end of the guide rail needle 44 is fitted in the slide groove 421, and the end is positioned as a moving end. The guide rail 42 is pressed into the accommodation groove 411, the guide rail 42 moves into the accommodation groove 411, and the guide rail needle 44 slides in the sliding groove 421.

The moving end of the guide needle 44 has an extended position point 71 and a retracted position point 72 over the entire stroke, and when the moving end is at the extended position point 71, the spring 43 ejects the guide rail 42; when the moving end is at the retracted position 72, the guide rail 42 compresses the spring 43 and is located in the receiving groove 411.

The extending and retracting direction of the guide rail 42 is defined as up and down, the highest point of the slide groove 421 is an extending position point 71, the slide groove 421 includes a first slide groove 4211 extending downward from the extending position point 71, a second slide groove 4212 and a third slide groove 4213 branching downward from the lower end of the first slide groove 4211, and a fourth slide groove 4214 communicating the second slide groove 4212 and the third slide groove 4213, the upper wall of the fourth slide groove 4214 is an upward convex arc, and the highest point of the arc is a retracting position point 72. The retracted position point 72 is located directly below the extended position point 71.

When the guide rail 42 is pressed once, the guide rail 42 compresses the spring 43 to move upwards, the motion track of the guide rail needle 44 is kept at the retraction position point 72 of the fourth chute 4214 from the extension position point 71 along the first chute 4211, the second chute 4212, and the guide rail 42 is retracted into the shell 41, the drainage valve 40 is in an opening state, and the circulation port 53 is opened to drain water; when the guide rail 42 is pressed once again, the guide rail 42 continues to move upward, the guide rail needle 44 is separated from the retracted position point 72 to the inside of the third sliding groove 4213, the guide rail 42 moves downward under the elastic force of the spring 43, the guide rail needle 44 returns to the extended position point 71 along the third sliding groove 4213 and the first sliding groove 4211, the guide rail 42 extends out of the housing 41, the end portion of the guide rail 42 seals the flow opening 53, the drain valve 40 is in a closed state, and the flow opening 53 cannot drain water.

The guide rail 42 is provided with a sealing head 422 at one end facing the communication port 53, and may be made of, for example, a flexible rubber material, which ensures sealing when the sealing head 422 closes the communication port 53.

In the washing machine, the drain valve 40 is of a mechanical switch structure, the extension and contraction of the guide rail 42 are realized by the spring 43, the position of the guide rail 42 is limited by the matching of the guide rail needle 44 and the sliding groove 421 on the guide rail 42, the movement of the guide rail 42 is realized by a mechanical structure, and the reliability is high.

During washing, the drain valve 40 is in a closed state, the guide rail needle 44 is at the extending position point 71, and the guide rail 42 closes the circulation port 53 on the roller 5; when the water needs to be drained, the guide rail 42 is pressed, the guide rail needle 44 moves from the extending position point 71 to the retracting position point 72 along the chute 421, the guide rail 42 retracts into the containing groove 411, the circulation port 53 is opened, and the washing water in the roller 5 is drained from the circulation port 53.

In some embodiments of the washing machine of the present disclosure, the opening or closing of the drain valve 40 may be controlled by a switching motor 50, and the switching motor 50 is fixedly connected to the outer tub 6. The switch motor 50 is provided with a telescopic shaft which can extend towards the guide rail 42 to press the sealing head 422, so as to open or close the drain valve 40.

Referring to fig. 1 and 6, the outer tub 6 communicates with a drain pipe 43 for draining water in the outer tub 6 to the outside of the washing machine. The drain pipe 43 is also connected with a drain pump, and can quickly drain the water in the drain pipe 43.

The washing machine of the present disclosure does not occupy the space of the drum 5 by disposing the drain valve 40 in the lifting rib 30, and can achieve the purposes of compact structure of the drum 5 and maximized volume of the drum 5. In addition, the lifting rib 30 can be detached, and cleaning operation is facilitated.

Specifically, the lifting ribs 30 provided in the drum 5 are provided in plural numbers, and are uniformly distributed along the circumference of the drum 5, and each lifting rib 30 is connected with a drain valve 40. When draining, one of the lifting ribs 30 is located at the lowest position, which may facilitate the complete drainage of the washing water in the drum 5.

The drum 5 is stationary at the front stage of the dewatering time, the drum 5 is rotated at a low speed at the rear stage of the dewatering time, and is rotated at a high speed during the dewatering time. Each lifting rib 30 of the roller 5 is correspondingly provided with a drain valve 40, when water enters, the drain valve 40 in the lifting rib 30 at the lowest point is closed, the drain valves 40 in the other lifting ribs 30 are opened to be communicated with the outside to realize air pressure balance, the water entering is finished, the drain valves 40 at the lowest points are closed, and the roller 5 rotates to start washing; during drainage, the drain valves 40 in the lifting ribs 30 are all opened, the drain valves 40 at the lower ends drain water, the drain valves 40 at the upper portions are used for balancing air pressure, dewatering is started after the drainage is finished, and the drain valves 40 reset after the dewatering is finished.

According to the washing machine of an embodiment of the present disclosure, referring to fig. 5, a positioning hole 51 is formed on the bottom wall of the drum 5, a positioning traction motor 60 is fixedly connected to the outer drum 6, the positioning traction motor 60 is connected to a positioning column 601 through a spring, the positioning column 601 is released, when the positioning column 601 enters the positioning hole 51, the position of the drum 5 is kept fixed, and it is ensured that one of the lifting ribs 30 can be located at the lowest position.

When drainage is required, the rotation speed of the drum 5 is reduced; the rear positioning traction motor 60 releases the positioning column 601, the positioning column 601 enters the positioning hole 51 under the action of a spring, the drain valve 40 is opened for draining, after the drainage setting time is in place, the positioning traction motor 60 pulls the positioning column 601 out of the positioning hole 51, the motor 7 is started for dewatering, after dewatering is completed, one-time positioning action is performed, and the drain valve 40 is reset and closed for waiting for next washing.

According to a washing machine of another embodiment of the present disclosure, a control system may be employed to control the position of the drum 5 at the time of draining so that one of the lifting ribs 30 may be at the lowest position.

It should be noted that the present invention is not limited to the positioning manner of the position when the drum 5 drains water.

In some embodiments of the present disclosure, the water supply pipe 41 may further include a heating pipe 44, and the heating pipe 44 may operate to heat the washing water introduced into the drum 5 through the water supply pipe 41. It should be noted that the heating pipe 44 may also be disposed on the water inlet pipe 42, and the purpose of heating the washing water may still be achieved.

The washing machine of the present disclosure also provides a structural solution of the door assembly 2, which is described in detail below with reference to the accompanying drawings.

As an embodiment of the door assembly 2 of the washing machine of the present disclosure, referring to fig. 1, the door assembly 2 includes an outer door 21 and an inner door 22, wherein the inner door 22 is connected to an inner side of the outer door 21, the outer door 21 is hinged to the housing 1, an opening or closing of the opening of the housing 1 can be achieved by horizontally rotating the outer door 21, and the inner door 22 moves along with the outer door 21 during the movement of the outer door 21.

When the door assembly 2 is in the closed state, the inner door 22 is in sealing abutment with the front end surface of the drum 5 to cover the drum 5, and the washing water is prevented from entering the outer tub 6 from the front end of the drum 5 during washing.

Since the drum 5 needs to be rotated during washing, the inner door 22 is provided in a rotatable manner with respect to the outer door 21 in one embodiment, and the inner door 22 is rotated along with the drum 5 in a hermetically coupled state.

The outer door 21 is provided with a traction shaft 23 extending towards the inner door 22, the inner door 22 is sleeved on the traction shaft 23 through a bearing 8, and when the roller 5 rotates, the inner door 22 is driven to rotate around the traction shaft 23.

Because the drum 5 can rotate at a high speed during dehydration, in order to avoid the influence on the inner door 22 during high-speed rotation, the inner door 22 is arranged in the washing machine disclosed by the invention to be capable of telescopic motion, namely, the inner door 22 can move back and forth relative to the outer door 21, when the washing machine is used for dehydration, the inner door 22 retracts towards the direction of the outer door 21, the inner door 22 is separated from the drum 5, the input opening at the front end of the drum 5 is opened, the drum 5 rotates at a high speed without influencing the inner door 22, in addition, water flow in the drum 5 can also enter the outer drum 6 from the input opening at the front end of the drum 5 to be discharged, and the dehydration efficiency is accelerated.

In order to realize the telescopic movement of the inner door 22 relative to the outer door 21, the outer door 21 and the inner door 22 have a relative movement space. Specifically, the inner side of the outer door 21 is provided with a movable cavity 211, the front end of the traction shaft 23 is located in the movable cavity and can move back and forth in the movable cavity 211, and the traction shaft 23 drives the inner door 22 to perform telescopic motion.

In one embodiment, the traction shaft 23 is provided with a driving force for movement by a traction motor 24. The traction motor 24 is fixedly connected to the outer door 21, and a traction motor wire 241 of the traction motor 24 is connected to the traction shaft 23 through a traction spring 242, that is, the front end of the traction spring 242 is connected to the traction motor wire 241, and the rear end is connected to the traction shaft 23. When the traction motor 24 is not operated, the traction shaft 23 is extended to the rear side by the traction spring 242, and thereby the inner door 22 is pushed to abut against the front end of the drum 5; when the traction motor 24 is operated, the traction motor wire 241 is pulled so that the inner door 22 follows the traction shaft 23 to move toward the outer door 21, and the inner door 22 is separated from the drum 5.

In order to reduce the size of the door assembly 2 in the axial direction as much as possible, the traction motor 24 is disposed in the radial direction of the outer door with respect to the movable chamber 211, a shaft is disposed in the movable chamber 211, and the traction motor line 241 changes its extending direction around the shaft to be in the same direction as the axis of the traction shaft 23.

Referring to fig. 2, the inner door 22 and the drum 5 are provided with magnetic gaskets 25, so that the inner door 22 can be attracted to the drum 5, and the tightness and reliability of the connection of the inner door 22 on the drum 5 are ensured.

The inner door 22 is connected with the traction shaft 23 through the bearing 8, so that abrasion can be reduced, the inner ring of the bearing 8 is fixed on the rigid traction shaft 23, the position of the bearing 8 is fixed, the motion precision of the bearing 8 is ensured, and the vibration and noise of the bearing 8 in the rotating process are reduced.

More specifically, the outer diameter of the inner door 22 is not greater than the minimum inner diameter of the outer door 21, so that the smoothness of the entrance of the inner door 22 into and out of the housing 1 can be ensured.

According to the washing machine disclosed by the invention, the inner door 22 is linked with the outer door 21, the inner door 22 and the outer door 21 act together when the door is opened and closed, and the inner door 22 is tightly attached to the roller 5 under the action of the traction spring 242 and the magnetic sealing gasket 25 when the whole machine is in a power-off state and a washing state, so that the roller 5 forms a closed space; when dewatering, the traction motor pulls the inner door 22 to retract, so that the inner door 22 is separated from the roller 5, the influence of high rotating speed on the inner door 22 is avoided, and meanwhile, the dewatering effect is also improved due to the fact that the front end of the roller 5 is opened. In addition, this washing machine's door subassembly 2 has avoided current washing machine door to seal the department and has multiplied the mould easily, pile up the dirt and influence pleasing to the eye and the problem of secondary pollution washings, has and uses and experiences good, the good advantage of washing effect.

As another embodiment of the door assembly 2 of the washing machine of the present disclosure, referring to fig. 6, the door assembly 2 includes an outer door 21 and an inner door 22, wherein the inner door 22 is connected to the inner side of the outer door 21, the outer door 21 is hinged to the housing 1, the opening or closing of the opening on the housing 1 can be achieved by horizontally rotating the outer door 21, and the inner door 22 moves along with the outer door 21 during the movement of the outer door 21.

Since the drum 5 needs to be rotated during washing, in one embodiment, the inner door 22 is provided in a rotatable manner with respect to the outer door 21, and the inner door 22 is rotatable along with the drum 5 in a closed state of the door assembly 2. The outer door 21 is provided with a traction shaft 23 extending towards the inner door 22, the inner door 22 is sleeved on the traction shaft 23, and when the roller 5 rotates, the inner door 22 is driven to rotate around the traction shaft 23.

Magnetic gaskets 25 are fixedly connected to two opposite surfaces of the inner door 22 and the roller 5 respectively, and when the inner door 22 is close to the inside of the roller 5, the inner door 22 and the roller 5 are in sealing contact under the action of the magnetic gaskets 25.

The washing machine covers the roller 5 by the inner door 22 in the door component 2, and the outer door 21 does not need to play a sealing role, so that a door seal in the existing washing machine can be omitted, and the problems that the existing door seal is easy to accumulate dirt, secondary pollution washings caused by mold breeding and the appearance is influenced can be avoided.

Since the drum 5 vibrates when rotating, in order to prevent the outer door 21 from being affected by the relative displacement between the inner door 22 and the drawing shaft 23, the inner door 22 and the drawing shaft 23 are flexibly connected in the washing machine.

Specifically, a bearing 8 is sleeved on the traction shaft 23, and a bearing seat 26 is connected to the outer side of the bearing 8; the inner door 22 is annular, the inner ring of the inner door 22 is hermetically connected with the bearing seat 26 through a rubber ring 27, namely the outer diameter of the rubber ring 27 is connected with the inner door 22, and the inner diameter of the rubber ring 27 is connected with the bearing seat 26; the rubber ring 27 is used for realizing flexible connection between the inner door 22 and the bearing seat 26, so that the interference between the inner door 22 and the rigid traction shaft 23 when the roller 5 rotates is avoided, and the problem that the traction shaft 23 limits the movement of the inner door 22 to cause the dislocation between the inner door 22 and the roller 5 to cause water leakage of the roller 5 is also avoided.

In some embodiments of the washing machine of the present disclosure, the rubber ring 27 has a structure with a corrugated layer, and the corrugated layer enables the rubber ring 27 to have a larger deformation movement range, so as to effectively prevent the rubber ring 27 from being damaged when the inner door 22 and the traction shaft 23 are relatively displaced.

Because the inner door 22 is flexibly connected with the traction shaft 23, the problem that the circle center of the inner door 22 is deflected under the action of self weight exists, therefore, the door assembly 2 of the washing machine also comprises a plurality of supporting springs 28, the supporting springs 28 are radially connected between the bearing seat 26 and the inner door 22, namely, one end of each supporting spring 28 is connected with the bearing seat 26, the other end of each supporting spring 28 is connected with the inner door 22, the inner door 22 is supported by the supporting springs 28, and meanwhile, the supporting springs 28 also avoid the rigid connection between the inner door 22 and the traction shaft 23.

More specifically, the inner door 22 includes a circular ring portion 221 and an edge portion 222, the edge portion 222 is located on the periphery of the circular ring portion 221, the edge portion 222 and the circular ring portion 221 are arranged at an included angle, one end of the support spring 28 connected to the inner door 22 is connected to the edge portion 222, and the support spring 28 is located in the same normal plane of the bearing 8.

In the washing process, the condition that the laundry is too much exists, the too much laundry can generate larger impact pressure on the inner door 22, the inner door 22 is flexibly connected with the traction shaft 23, the deformation of the inner door 22 can cause the problem that the sealing roller 5 is not tight, in order to avoid the too much pressure of the laundry on the inner door 22, the door assembly 2 of the washing machine further comprises a limit baffle 29, one end, far away from the outer door 21, of the traction shaft 23 penetrates through the inner door 22 and extends out of the inner door 22, and the limit baffle 29 is connected to the end of the traction shaft 23, namely, the inner door 22 is positioned between the outer door 21 and the limit baffle 29.

When the door assembly 2 is in the closed state, the limit baffle 29 is located inside the drum 5, which can limit the position of the laundry in the drum 5 and prevent the laundry from directly contacting the inner door 22 to generate pressure.

In some embodiments of the washing machine of the present disclosure, the front end of the drum 5 has a front cover 52, the center of the front cover 52 is provided with a through opening 521, and the inner door 22 is hermetically connected with the front surface of the front cover 52;

the front end cover 52 has an inner ring provided with an arc-shaped extension 522 bent toward the inner direction of the drum 5, which can prevent the clothes from being damaged in the washing process, and the limit baffle 29 is located in the extension 522 in the axial direction, which can prevent the limit baffle 29 from scratching the clothes.

In addition, the outer diameter of the limit stop 29 is larger than the inner diameter of the inner door 22, so that when the door assembly 2 is opened, the limit stop 29 moves outwardly along with the outer door 21, thereby pushing the inner door 22 open, so that the inner door 22 is separated from the drum 5.

The working principle of the door assembly 2 is as follows: 1. after the laundry is put in, the outer door 21 is closed, and the inner door 22 moves close to the drum 5 following the outer door 21. When the inner door 22 reaches a certain distance from the drum 5, the inner door 22 is in sealing contact with the drum 5 due to the attraction of the magnetic packing 25, and the outer door 21 is fixed to the housing 1 by the door lock. 2. When the user starts the washing machine, the water inlet valve 45 feeds water into the detergent box 3, the water mixed with the detergent enters the drum 5 through the water inlet pipe 42 and the hollow channel 91 of the main shaft 9, and the washing process starts. 3. After the washing process is finished, the outer door 21 is opened, the limit stop 29 moves along with the outer door 21 and contacts with the inner door 22, and the inner door 22 is opened and moves along with the outer door 21 under the tension of the support spring 28 and the force applied to the inner door 22 by the limit stop 29.

The washing machine of the embodiment is designed to have the drum 5 of a non-porous structure, the drum 5 is used as a water containing barrel, and the drum 5 and the outer barrel 6 are isolated in space during washing, so that the problem of secondary pollution caused by space interconnection between the inner barrel and the outer barrel is solved.

The washing machine of the embodiment is provided with the drain valve 40 in the lifting rib 30, and does not occupy the space of the roller 5; the drain valve 40 is a push type mechanical switch, and has high reliability.

The washing machine of the embodiment adopts the door assembly 2 consisting of the inner door 21 and the outer door 21 to seal the roller 5, and the inner door 22 seals the roller 5 to prevent washing water from overflowing the roller 5 in the washing process; in the washing and dewatering process, the outer door 21 is fixed in position, the inner door 22 can move along with the roller 5, the inner door 21 and the outer door 21 are flexibly connected, interference between the inner door 21 and the outer door 21 when the inner door 22 moves is prevented, and reliability of the inner door 22 for sealing the roller 5 is guaranteed.

The washing machine of the embodiment is provided with the limit baffle 29 to limit clothes, so that the problem of poor sealing caused by that the clothes jack the inner door 22 is solved.

The washing machine of the present embodiment has the arc-shaped extension 522 at the mouth of the drum 5, so as to prevent the laundry from being damaged at the mouth during the washing process.

In the washing machine of the embodiment, the bearing 8 is arranged between the traction shaft 23 of the outer door 21 and the inner door 22, the inner ring of the bearing 8 is fixed on the rigid traction shaft 23, the position of the bearing 8 is fixed in the washing and dewatering process, the movement precision of the bearing 8 is ensured, and the vibration and noise of the bearing 8 in the washing and dewatering process are also reduced.

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims

1. A washing machine, characterized by comprising:

a housing having a feed opening formed in a front side surface thereof;

the outer cylinder is arranged in the shell;

the drum is rotatably arranged in the shell and the outer cylinder, is of a non-porous structure and can be used for containing washing water, and is provided with a circulating port for discharging the washing water;

the lifting rib is connected to the inner side wall of the roller corresponding to the circulation port and used for lifting falling and beating the washings; and

the drain valve is arranged in the lifting rib and has an open state and a closed state, so that when the drain valve is pressed, the drain valve extends out to close the circulation port, and when the drain valve is pressed again, the drain valve retracts to open the circulation port;

a door assembly coupled to the front side of the housing, the door assembly comprising:

an outer door for opening and closing the inlet;

an inner door connected to an inner side of the outer door;

the traction shaft is arranged on the outer door, extends towards the direction of the inner door and is sleeved with the inner door;

the limiting baffle is connected to one end, far away from the outer door, of the traction shaft;

when the door assembly is in a closed state, the inner door is in sealing butt joint with the front end face of the roller, and the limiting baffle is located in the roller.

2. The washing machine as claimed in claim 1, further comprising:

the outer cylinder is covered on the outer side of the roller;

and the switch motor is fixedly connected to the outer barrel and can press the drain valve to control the drain valve to be opened or closed.

3. The washing machine as claimed in claim 1, wherein the drain valve comprises:

the shell is fixedly connected with the lifting rib, and an accommodating groove is formed in the shell;

the guide rail is inserted in the accommodating groove and is provided with a sliding groove;

the spring is connected between the guide rail and the bottom of the accommodating groove; and

the guide rail needle is provided with a connecting end and a moving end which are opposite, the connecting end is connected with the shell, the moving end can move in the sliding groove, an extending position point and a retracting position point are arranged on the stroke of the moving end, and when the moving end is positioned at the extending position point, the spring ejects the guide rail; when the moving end is at the retraction position point, the guide rail compresses the spring to be positioned in the accommodating groove.

4. The washing machine as claimed in claim 3, wherein the extension and contraction direction of the guide rail is defined as up and down, the highest point of the chute is an extended position point, the chute includes a first chute extending downward from the extended position point, a second chute and a third chute branching downward from a lower end of the first chute, and a fourth chute communicating the second chute and the third chute, an upper wall of the fourth chute is an upwardly convex arc, and the highest point of the arc is a retracted position point.

5. A washing machine as claimed in claim 3 wherein a sealing head is attached to the end of the track remote from the spring, the sealing head being adapted to seal the flow opening.

6. The washing machine as claimed in claim 1, wherein a plurality of lifting ribs are uniformly distributed on the drum, each lifting rib is correspondingly connected with one drain valve, the drain valve at the lowest position is closed when water enters the washing machine, and other drain valves are opened; the drain valves are all closed during washing; and the drain valves are all opened during water drainage.

7. A washing machine as claimed in claim 6 wherein one of the drain valves is at the lowest point when the washing machine is supplying or draining water.

8. The washing machine as claimed in claim 7, further comprising:

the positioning traction motor is fixed relative to the shell and is positioned at the rear side of the roller, and the positioning traction motor is connected with a positioning column through a traction spring;

the positioning holes are formed in the bottom wall of the roller, the positioning columns can be matched with or separated from the positioning holes under the action of the positioning traction motor, and one of the drain valves is located at the lowest point in a matching state.

9. A washing machine as claimed in claim 1 wherein the lifting rib is detachably connected to the drum.

10. The washing machine as claimed in claim 1, further comprising:

the main shaft is connected with the bottom wall of the roller and used for driving the roller to rotate, and the main shaft is provided with a hollow channel;

the sealing element is sleeved on the main shaft and fixed relative to the shell, and a water inlet cavity communicated with the hollow channel is formed in the sealing element; and

one end of the water inlet pipe is connected to the sealing piece, so that water flows from the water inlet pipe, through the water inlet cavity and the hollow channel into the roller when water enters.