CN111041769B - Control method of drum washing machine and drum washing machine - Google Patents

Abstract

The invention discloses a control method of a drum washing machine, which comprises a drum which is arranged in a shell and is not provided with a dehydration hole, wherein a clothes putting opening is arranged on the side wall of the drum, and a door body capable of turning over to open and close the clothes putting opening is arranged on the drum; the limiting action is carried out on the roller in the braking process of the roller, so that the roller is stopped to a fixed position, and the clothes throwing opening on the roller faces the opening arranged on the shell of the washing machine. By the control method, the drum washing machine is stopped to a fixed position under the positioning action in the braking process of the drum, the static drum is kept at a position of the clothes putting opening towards the opening direction of the washing machine, and a user can conveniently open and close the door cover of the clothes putting opening of the drum from the opening of the shell, and then take and put clothes into the drum from the clothes putting opening. The invention also discloses a drum washing machine adopting the control method.

Description

Control method of drum washing machine and drum washing machine

Technical Field

The invention relates to washing machine equipment in household appliances, in particular to a top-opening type drum washing machine, in particular to a drum washing machine, the top of which is provided with a clothes feeding port and is formed by a pore-free inner drum without a dewatering hole, and a control method of the drum washing machine.

Background

Washing machines can be largely classified into pulsator type, agitator type, and drum type washing machines. Generally, a washing machine removes stains from laundry by the action of water and detergent.

The pulsator type washing machine performs a washing operation by rotating a pulsator at the center of a washing tub in a left-right direction. The pulsator type washing machine performs a washing operation by using a frictional force between a water current and laundry by rotating a rotation fin at the center of a washing tub in a left-right direction. The drum type washing machine performs a washing operation by rotating a drum to beat laundry.

In general, a drum type washing machine has a housing, an outer tub for accommodating washing water is installed inside the housing, a drum for accommodating laundry is provided inside the outer tub, and a motor and a shaft for rotating the drum are provided on the rear surface of the outer tub.

In addition, there are control parts for controlling the progress of the laundry, typically a control panel, and water inlet and drainage mechanisms, etc. The drum type washing machine removes stains contained in laundry by using friction between wash water stored in a tub and the laundry in a drum and chemical action of detergent contained in the wash water.

The washing drum is used as an important part of the washing machine, is not only used for containing washings to form a washing container, but also can participate in washing work, in particular to the drum washing machine, mainly lifts and throws clothes by virtue of the rotation action of the washing drum so as to form a beating effect, and meanwhile, the washing drum has a certain rubbing effect on the clothes, so that the washing effect is achieved by virtue of beating and washing; in addition to pulsator washing, many existing pulsator washing machines also use a washing drum for washing, such as so-called "double-power" washing machines, which are popular in the market.

Compared with the pulsator washing machine, the drum washing machine has the weakness that the machine door is arranged at the front side, so that after water enters, the machine door is inconvenient to open, clothes are added again, the clothes are contained or taken out, and the clothes are taken out by bending down or squatting down, so that the drum washing machine is inconvenient for old people or pregnant women. The top-opening type drum washing machine has the advantages of being small in washing and abrasion of the drum washing machine, and capable of taking and putting clothes through an upper opening of the pulsator washing machine and adding the clothes in the middle.

In order to avoid pollution to washing water, the applicant has previously proposed a non-porous drum washing machine which combines the inner and outer drums together, so as to overcome the problem of dirt retention between the inner and outer drums. Therefore, how to apply the non-porous drum technology to the top-open type washing machine has become a research and development hot spot.

The present invention has been made in view of this.

Disclosure of Invention

The invention aims to solve the technical problems of overcoming the defects of the prior art and providing a control method of a drum washing machine, so as to realize the purposes that after the washing machine stops rotating, a drum is positioned to a fixed position, and a clothes throwing port of the drum faces to a shell opening of the washing machine, so that a user can conveniently take and put clothes; the invention also provides a roller washing machine, so that the roller has the double effects of accommodating washing water and washing clothes by utilizing the rotation of the roller, and further the purposes of avoiding dirt remained in the washing machine barrel and realizing no-cleaning in the barrel are achieved.

In order to solve the technical problems, the basic conception of the technical scheme adopted by the invention is as follows:

a control method of a drum washing machine comprises a drum which is arranged in a shell and is not provided with a dehydration hole, wherein a clothes throwing opening is arranged on the side wall of the drum, and a door body capable of turning over, opening and closing the clothes throwing opening is arranged on the drum; the method is characterized in that: the limiting action is carried out on the roller in the braking process of the roller, so that the roller is stopped to a fixed position, and the clothes throwing opening on the roller faces the opening arranged on the shell of the washing machine.

Further, after the washing machine executes the dewatering program, the drum is braked, and the drum is positioned in the braking process, so that the drum is stopped to a fixed position, and a clothes putting opening on the drum faces to an opening arranged on the washing machine shell; preferably, the opening provided in the washing machine housing is provided toward the upper side.

Further, after the drum is stopped to the fixed position, the drum is locked and limited, so that the drum is kept at the fixed position and is not rotated any more, and a user can open and close the door body at the clothes putting opening of the drum by stretching the door body from the opening.

Further, after the washing machine has performed the dehydration process, the drum is stopped to a fixed position until the washing machine starts to perform the next washing process.

Further, if the washing program is stopped during the washing process of the washing machine, the drum is controlled to stop to a fixed position; preferably, after the drum is stopped to the fixed position, the door cover at the opening of the washing shell is controlled to be unlocked.

Further, in the process of the washing machine executing the dehydration procedure, the drum repeatedly executes the dehydration step, the braking and stopping step and the stationary step; in the dehydration step, the drum rotates at a high speed, and water on the laundry is separated by centrifugal force; in the braking and stopping step, the roller is stopped to a fixed position under the positioning action; a step of keeping stationary, in which the drum is kept stationary at a fixed position and a water outlet valve is opened to allow water separated from laundry in the drum to be discharged from the water outlet;

further, the washing water separated from the dehydration of the laundry in the drum is concentrated by centrifugal force to flow into the water storage groove protruding outwards from the drum wall, and the water in the water storage groove flows out from the opened water outlet after the drum stops rotating.

Further, in the process of executing the dewatering program of the washing machine, the drum rotates at high speed, and the centrifugal valve arranged at the opening of the drum is opened under the action of centrifugal force, so that the washing water in the drum is discharged from the opening.

The invention also discloses a drum washing machine adopting any one of the control methods, which comprises a drum which is arranged in the shell and is not provided with a dehydration hole, wherein a clothes putting opening is arranged on the side wall of the drum, and a door body capable of turning over to open and close the clothes putting opening is arranged on the drum; the washing machine is provided with a positioning structure for positioning the drum in the process of stopping rotation so that the drum is stopped to a fixed position.

Further, the positioning structure comprises a positioning groove which is arranged at the periphery of the roller and is recessed in the cylinder and a positioning rod which can move along the radial extension of the roller, and the positioning rod and the positioning groove are arranged in the same rotary section of the roller, so that the extension end of the positioning rod can correspondingly extend into the positioning groove; when the positioning rod is inserted into the positioning groove, the roller rotates to a fixed position, and the clothes putting opening of the roller faces to an opening arranged at the top of the washing machine shell.

Further, a water outlet is arranged on the roller, a water draining structure is further arranged on the washing machine, the water draining structure comprises a push rod which can move along the radial direction of the roller in a telescopic way, and the push rod and the water outlet are arranged in the same rotary section of the roller, so that the telescopic end of the push rod can correspondingly extend into the water outlet; when the drum rotates to a fixed position, the ejector rod is correspondingly inserted into the water outlet, and the clothes throwing opening of the drum faces to an opening arranged on the shell of the washing machine.

After the technical scheme is adopted, compared with the prior art, the invention has the following beneficial effects:

through the arrangement, the aim of arranging the clothes putting opening on the side wall of the drum of the washing machine and enabling the clothes putting opening arranged on the drum to be correspondingly sealed and closed by the door body or opened for taking and putting clothes is fulfilled; meanwhile, the clothes putting opening is arranged on the side wall of the roller, so that a user can open the door body from the upper part of the washing machine, and the aim of taking and putting clothes into the roller is fulfilled; more particularly, the clothes throwing opening of the roller is sealed through the door body, so that the roller can be arranged as a sealed container, both ends of the roller can be supported by the rotating shaft in the roller washing process, and the eccentric rotation of the roller is avoided.

By arranging a single outwards turned and opened door body at the clothes putting opening on the side wall of the roller, the opening and closing mode of the top-opening roller washing machine is simpler, and the convenience of user operation is improved; meanwhile, one side of a single door body at the clothes putting opening is hinged with the roller, and the opposite side is in locking connection with the roller through a locking structure, so that the aim of quick opening, closing and locking of the door body is fulfilled.

The drum of the washing machine is arranged to be the sealed container without the dehydration hole, so that the dual effects of the water containing outer drum and the stirring inner drum are realized, the phenomenon that dirt is reserved on the outer wall of the inner drum and the inner wall of the outer drum caused by the flowing of washing water between the inner drum and the outer drum is avoided, the cleanliness in the washing machine drum is improved, and the aim of washing-free washing of the washing machine is fulfilled.

By the control method, the drum washing machine is stopped to a fixed position under the positioning action in the braking process of the drum, the static drum is kept at a position of the clothes putting opening towards the opening direction of the washing machine, and a user can conveniently open and close the door cover of the clothes putting opening of the drum from the opening of the shell, and then take and put clothes into the drum from the clothes putting opening.

Through the arrangement, when the non-porous roller of the roller washing machine stops rotating, the non-porous roller stops to a fixed position under the action of the positioning structure, so that the positioning effect on the non-porous roller is realized, and the non-porous roller can be kept stationary at the fixed position.

Meanwhile, the invention has simple structure and obvious effect, and is suitable for popularization and use.

The following describes the embodiments of the present invention in further detail with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiments of the invention and together with the description serve to explain the invention, without limitation to the invention. It is evident that the drawings in the following description are only examples, from which other drawings can be obtained by a person skilled in the art without the inventive effort. In the drawings:

fig. 1 and 2 are schematic views illustrating structures of different views of a washing machine according to an embodiment of the present invention;

FIGS. 3 and 5 are schematic sectional views showing different radial sections of a washing machine in accordance with an embodiment of the present invention;

FIG. 4 is an enlarged schematic view of the structure of FIG. 3A according to the embodiment of the present invention;

FIG. 6 is an enlarged schematic view of the structure of FIG. 5B according to the embodiment of the present invention;

FIG. 7 is a schematic cross-sectional view of a drain outlet in accordance with an embodiment of the present invention;

FIG. 8 is a schematic view showing an axial sectional structure of a washing machine in accordance with an embodiment of the present invention;

FIG. 9 is an enlarged schematic view of the structure of FIG. 8C according to the embodiment of the present invention;

FIG. 10 is a schematic view of a water inlet end cap according to an embodiment of the present invention;

FIG. 11 is a schematic cross-sectional structure of a washing machine in accordance with an embodiment of the present invention;

FIG. 12 is a schematic cross-sectional view of a drum of a washing machine in accordance with an embodiment of the present invention;

FIGS. 13 and 17 are schematic views illustrating the installation of a ventilation structure in various embodiments of the present invention;

FIG. 14 is a schematic view of a mounting bracket structure for a ventilation structure in an embodiment of the present invention;

FIGS. 15, 18 and 19 are schematic cross-sectional views showing the assembly of different valve plates according to the embodiment of the present invention;

fig. 16 and 20 are schematic structural views of different valve plates according to an embodiment of the present invention;

fig. 21 and 22 are schematic structural views of a door body in different states according to an embodiment of the present invention;

fig. 23 is a schematic cross-sectional view of a door assembly in accordance with an embodiment of the present invention.

In the figure: 100. a housing; 200. a roller; 300. a door cover; 400. a drainage structure; 500. a positioning structure; 600. a ventilation valve; 800. an outer cylinder; 900. a water inlet structure; 1. a sidewall; 2. a sealing part; 3. a clothes putting port; 11. a rotating shaft; 210 lifting ribs; 82. a hanging spring; 83. and a support.

It should be noted that these drawings and the written description are not intended to limit the scope of the inventive concept in any way, but to illustrate the inventive concept to those skilled in the art by referring to the specific embodiments.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions in the embodiments will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present invention, and the following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted", "connected" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.

Referring to fig. 1 to 23, an embodiment of the present invention provides a washing machine including a drum 200 installed in a washing machine housing 100; the drum 200 comprises a side wall 1 enclosing a cylindrical structure, two ends of the cylindrical side wall 1 are respectively sealed by sealing parts 2, a clothes putting opening 3 is arranged on the side wall 1 of the drum 200, and a door cover 300 capable of being opened and closed is arranged at the clothes putting opening 3, so that a user can take and put clothes inwards from the clothes putting opening 3 on the side wall 1 of the drum.

In the embodiment of the present invention, an outer cylinder 800 is further disposed in the washing machine housing 100, and the upper and lower ends of the outer cylinder 800 are respectively connected to the upper and lower parts of the washing machine housing 100 through a suspension spring 82 and a supporting member 83, so that the outer cylinder 800 can be installed in the housing 100 in a vibration displacement manner. The roller 200 is coaxially sleeved inside the outer barrel 800, and both ends of the outer barrel 800 are sealed, so that the outer barrel 800 forms a sealed container for accommodating water inlet of the washing machine.

In the embodiment of the invention, the drum 200 can be a sealed container which is not provided with a dewatering hole and is provided with the clothes putting opening 3 only on the side wall 1 of the inner drum, so that the drum simultaneously has the dual purposes of rotating, beating and washing clothes and sealing and containing washing water, and the effect of integrating the inner drum and the outer drum of the drum washing machine into a whole and integrating the whole drum is achieved.

In the embodiment of the invention, the top of the side wall of the outer cylinder 800 is provided with an opening, which is opposite to the laundry putting opening 3 arranged on the side wall 1 of the roller, so that after the roller 200 stops rotating, a user can control the door 300 at the laundry putting opening 3 from the opening arranged on the top of the side wall 1 of the outer cylinder to open and close, thereby putting and taking laundry.

In the embodiment of the invention, a delivery opening is further arranged at the top of the washing machine shell 100, and the delivery opening is opposite to an opening arranged on the outer barrel 800 and a clothes delivery opening 3 arranged on the roller side wall 1. An openable and closable door is provided on the washing machine housing 100 to correspond to the input port. Meanwhile, in order to prevent water from spilling between the outer tub 200 and the housing 100, a door cover may be provided on the outer tub 800 to cover the opening of the outer tub 800 correspondingly; as shown in fig. 3, a sleeve may be connected between the opening of the outer cylinder 800 and the delivery opening of the housing 100; the door body arranged at the throwing opening of the shell 100 can be provided with a protruding part protruding downwards, and the protruding part correspondingly seals the opening of the outer barrel 800 after the door body is closed. The opening of the outer cylinder 800 can be sealed in the above manner, so as to avoid water flow overflowing between the outer cylinder 800 and the housing 100 during normal washing process of the washing machine.

Through the arrangement, the aim of arranging the clothes putting opening on the side wall of the drum of the washing machine and enabling the clothes putting opening arranged on the drum to be correspondingly sealed and closed by the door body or opened for taking and putting clothes is fulfilled; meanwhile, the clothes putting opening is arranged on the side wall of the roller, so that a user can open the door body from the upper part of the washing machine, and the aim of taking and putting clothes into the roller is fulfilled; more particularly, the clothes throwing opening of the roller is sealed through the door body, so that the roller can be arranged as a sealed container, both ends of the roller can be supported by the rotating shaft in the roller washing process, and the eccentric rotation of the roller is avoided.

Example 1

As shown in fig. 1 to 7, the present embodiment describes a drainage structure of a top-open type drum washing machine, the washing machine includes a drum 800 installed in a housing 100 and having no dehydration holes, a laundry inlet 3 is provided on a sidewall of the drum 200, and a door 300 for turning over and opening and closing the laundry inlet is provided on the drum 200; a water outlet 45 is arranged on the roller 200, and a valve core 413 corresponding to the closed opening is arranged at the water outlet 45; a drain structure 400 is also installed in the casing 100 to push up the valve cartridge 413 and open the drain opening 45 after the drum 200 is rotated to a fixed position.

Through setting up above-mentioned structure on the cylinder for the cylinder rotates to the fixed position and receives drainage structure effect and correspond the case of pushing away the outlet department and setting up, makes the outlet of aporate cylinder correspondingly open, and then realizes the smooth and easy drainage's of top-open aporate cylinder washing machine function of using.

In this embodiment, the valve element 413 is correspondingly disposed inside the drum 200, and the valve element 413 is connected to the drum 200 via a spring 414, and the spring 414 applies an elastic pressure to the valve element 413 along the radial direction of the drum 200 from inside to outside, so that the valve element 413 seals the drain opening 45.

The valve core at the water outlet is connected with the roller through the spring, so that the valve core receives the acting force of the spring on the valve core to close the water outlet in real time, and the situation that the water outlet is opened by mistake due to the fact that centrifugal force, water flow impact force and the like act on the valve core in the rotation process of the roller is avoided.

In this embodiment, a bracket cover 411 is disposed on the inner side of the drum 200 opposite to the water outlet, the outer periphery of the bracket cover 411 is fixedly connected with the drum 200, a valve core 413 is disposed between the bracket cover 411 and the water outlet 45, a certain clearance is provided between the valve core 413 and the bracket cover 411, a spring 414 in a compressed state extending radially along the drum 200 is disposed in the clearance, and two ends of the spring 414 respectively abut against the bracket cover 411 and the valve core 413. Preferably, the end of the spring 414 abuts against the center of the valve plug 413, so as to avoid the situation that the valve plug 413 cannot completely close the drain opening 45 due to the deviation of the elastic force acting on the valve plug 413. Further preferably, the outer peripheral sidewall of the bracket cover 411 is at least partially hollowed out, so that the movable gap is communicated with the interior of the drum 200 through the hollowed-out portion.

In this embodiment, the bracket cover 411 has a bowl-shaped structure that is inversely fastened to the inner wall of the drum 200, and the opening of the bowl-shaped bracket cover 411 is fixedly connected with the inner wall of the drum 200, so that a drainage chamber 415 is defined between the bracket cover 411 and the drum, and the drainage outlet 45 is communicated with the drainage chamber 415. A plurality of hollowed-out parts 418 are arranged on the side wall of the bowl-shaped bracket cover 411, and each hollowed-out part 418 is communicated with the inside of the drum 200 through the drainage cavity 415. Preferably, the drain opening 45 is disposed coaxially with the bowl-shaped holder cover 411. The radial width of the inner wall of the drainage chamber 415 is gradually narrowed from bottom to top, a circle of sealing ring 412 made of rubber and other elastic deformation materials is sleeved on the periphery of the valve spool 413, the periphery of the sealing ring 412 is in limit contact with the inner side wall of the bracket cover 411, and the radial width of the sealing ring 412 is smaller than the minimum radial width of the drainage chamber 415.

In this embodiment, the valve element 413 has a disc shape horizontally disposed, and the outer periphery of the valve element 413 is spaced apart from the inner wall of the bowl-shaped holder cover 411 by a certain gap. The center of the bowl-shaped bracket cover 411 is provided with a columnar limit rib 417 which is coaxially arranged and downwards extends from the bracket cover 411, the center of the disc-shaped valve spool 413 is provided with a sleeve 416 which upwards extends, and the limit rib 417 is correspondingly inserted into the sleeve 416; and the axial extension heights of the limit rib 417 and the sleeve 416 are smaller than the height of the bowl-shaped bracket cover 411, so as to reserve a moving gap for the valve core 413 to move up and down. The spring 414 is sleeved on the periphery of the limiting rib 417 and the sleeve 416, the upper end of the spring 414 is in limiting conflict with the bracket cover 411, and the lower end of the spring 414 is in limiting conflict with the disc-shaped valve core 413. A limiting groove is arranged on the lower side of the valve core 413 for correspondingly inserting the telescopic end of the ejector rod 44. Preferably, the lower side of the disc-shaped valve core 413 is provided with a coaxially arranged limiting block protruding downwards, the limiting block is made of rubber and other materials capable of generating elastic deformation, and the lower side of the limiting block is provided with a limiting groove into which the telescopic end of the ejector rod is correspondingly inserted. Further preferably, a circle of limiting groove with an outer protruding side is arranged on the periphery of the water outlet 45, and the outer diameter of the sealing ring 412 is equal to or slightly smaller than the inner diameter of the limiting groove, so that when the valve core 413 is in contact with the side wall of the roller 200 under the action of a spring, the periphery of the sealing ring 412 is in limit contact with the inner periphery of the limiting groove, and the valve core 413 correspondingly seals the water outlet 45.

In this embodiment, the drainage structure includes a push rod 44 that can move radially and telescopically along the drum 200, and the push rod 44 and the drain opening 45 are disposed in the same drum 200 in a rotation section, so that the telescopic end of the push rod 44 can correspondingly extend into the drain opening 45 to push up the valve spool 413. Preferably, when the drum rotates to the fixed position, the ejector rod and the water outlet are positioned on the same extension line, and the ejector rod is driven to move radially along the drum from outside to inside so as to correspondingly eject the valve core 413 at the water outlet 45. It is further preferable that the drain opening 45 is at the lowest position of the drum 200 when the drum 200 is rotated to the fixed position, so that the washing water contained in the drum 200 can be smoothly discharged.

In this embodiment, the ejector rod 44 is connected to the rotation shaft of the driving motor 41 through a crank link mechanism, so that the ejector rod 44 is driven to generate a telescopic displacement along the radial direction of the drum 200 through the crank link mechanism during the rotation of the rotation shaft of the driving motor 41. Preferably, the crank-link mechanism comprises an eccentric wheel 42, the center of the eccentric wheel 42 is coaxially fixed with the rotating shaft, the periphery of the eccentric wheel is hinged with one end of a connecting rod 43, and the other end of the connecting rod 43 is hinged with a push rod 44.

In this embodiment, the drainage structure further includes a sleeve-shaped casing 46, and the sleeve-shaped casing 46 is radially installed outside the outer cylinder 800 along the drum 200; the ejector rod 44 is coaxially arranged in the sleeve-shaped shell 46 in a penetrating way, one end of the sleeve-shaped shell 46 is provided with an opening for the telescopic end of the ejector rod 44 to penetrate out, and the end of the sleeve-shaped shell 46 is fixedly connected with the outer cylinder 800 so that the ejector rod can only move in a telescopic way along the radial direction of the roller under the limiting action of the sleeve-shaped shell. The other end of the sleeve-shaped housing 46 is provided with a mounting plate 47 with a sealed opening, the driving motor 41 is fixedly mounted on one side of the mounting plate 47 away from the sleeve-shaped housing 46, and the rotating shaft of the driving motor 41 is arranged in parallel with the axis of the drum 200. Preferably, a spring 49 sleeved on the periphery of the ejector rod 45 is further arranged in the sleeve-shaped shell 46, one end of the spring 49 is connected with the sealing end of the sleeve-shaped shell 46 provided with the driving motor, and the other end of the spring is connected with the ejector rod 45; the spring 49 is always in a compressed state, and the ejector rod 44 is spring-loaded to have a tendency to eject toward the inside of the drum, so as to control the ejector rod to eject in time after the eccentric wheel rotates.

In this embodiment, a disc-shaped eccentric wheel 42 is installed at the rotation shaft of the driving motor 41, the disc-shaped eccentric wheel 42 is parallel to the axis of the ejector rod 44, the center of the disc-shaped eccentric wheel 42 is coaxially fixed with the rotation shaft of the driving motor 41, an eccentric shaft is arranged at the periphery of the disc-shaped eccentric wheel 42, and the axis of the eccentric shaft is perpendicular to the eccentric wheel 42. The extending direction of the connecting rod 43 is perpendicular to the axis of the eccentric shaft, and a first connecting hole is formed in the first end of the connecting rod 43 and hinged with the eccentric shaft; the second end of the connecting rod 43 is provided with a second connecting hole and is hinged with one end of the ejector rod 44 in the sleeve-shaped shell. Preferably, the first connecting hole provided at the first end of the connecting rod 43 is a long hole extending along the axial direction of the connecting rod 43, and the extending length of the long hole is larger than the diameter of the eccentric shaft, so as to provide a movable allowance for the connecting rod and promote the running smoothness of the crank-connecting rod mechanism. Preferably, the mounting plate 47 is provided with a bearing seat 410 for the ejector rod 44 to pass through and be mounted, and the lower end of the ejector rod 44 correspondingly passes through the mounting plate 47 and is hinged with the second end of the connecting rod 43, so that the ejector rod is fixedly mounted on the outer cylinder under the action of the bearing seat, and the ejector rod can only generate telescopic movement along the axial direction of the roller under the action of the bearing seat.

In this embodiment, a dynamic seal structure 419 is disposed on the inner side of the sleeve-shaped housing 46 facing the outer cylinder, through which the ejector rod 44 passes, and the dynamic seal structure 419 seals the side of the sleeve-shaped housing 46 facing the outer cylinder, and allows the ejector rod to axially extend and retract, so as to isolate the interior of the housing from the outer cylinder, and prevent water in the outer cylinder from flowing into the housing. Preferably, the dynamic seal structure 419 is annular and can generate radial expansion deformation, the annular inner periphery is in sealing connection with the outer wall of the ejector rod 44, and the annular outer periphery is in sealing connection with the shell.

In this embodiment, a bellows 48 is disposed in the sleeve-shaped housing 46, and two ends of the bellows 48 are respectively fixed with the mounting plate 47 and the ejector rod 44 to divide the interior of the sleeve-shaped housing into two mutually independent layers; the ejector rod 44 is sleeved in the corrugated pipe 48, the spring 49 is sleeved on the periphery of the ejector rod 44 and the inner periphery of the corrugated pipe 48, two ends of the spring 49 are respectively connected with the mounting plate 47 and the ejector rod 44, and the upper end of the spring 49 is fixed with the joint of the ejector rod 44 and the corrugated pipe 48.

In this embodiment, the outer cylinder 800 is disposed in a through hole through which the ejector rod 44 passes, the upper end of the sleeve-shaped housing 46 is correspondingly mounted at the through hole of the outer cylinder 800, and the upper end of the sleeve-shaped housing 46 is hermetically connected to the periphery of the through hole to correspondingly seal the through hole. The corrugated pipe is arranged in the shell, so that the inner part of the shell is divided into two mutually independent parts, and the washing water is prevented from flowing into the corrugated pipe and affecting the telescopic movement of the ejector rod.

Example two

The present embodiment is based on the first embodiment, and further has the following distinguishing technical features: as shown in fig. 1 to 4, in order to accurately rotate the drum to the fixed position, a positioning structure 500 is further provided on the drum washing machine to limit the rotation of the drum 200 to the fixed position, and in particular, to stop the rotation of the drum 200 to the fixed position.

In this embodiment, the outer circumference of the roller 200 is provided with a positioning groove 55 recessed into the cylinder and a positioning rod 54 capable of extending and retracting along the radial direction of the roller 200, and the positioning rod 54 and the positioning groove 55 are disposed in the same rotary section of the roller 200, so that the extending and retracting end of the positioning rod 54 can correspondingly extend into the positioning groove 55. Preferably, when the positioning rod 54 is inserted into the positioning groove 55, the drum 200 is rotated to a fixed position, and the drain opening 45 is at the lowest position of the drum 200.

Through the arrangement, when the non-porous roller of the top-open roller washing machine stops rotating, the non-porous roller stops to a fixed position under the action of the positioning structure, so that the positioning effect on the non-porous roller is realized, and the non-porous roller can be kept stationary at the fixed position.

In this embodiment, the positioning groove 55 and the water outlet 45 are located in different rotation sections of the drum 200, so that the water draining structure 400 and the positioning structure 500 are staggered. Preferably, the positioning rod 54 is connected to the rotation shaft of the driving motor 51 through a crank link mechanism, so that the positioning rod 54 is driven to generate telescopic displacement along the radial direction of the drum 200 through the crank link mechanism during the rotation of the rotation shaft of the driving motor 51. Preferably, the crank-link mechanism includes an eccentric wheel 52, the center of the eccentric wheel 52 is coaxially fixed with the rotation shaft of the driving motor 51, the periphery is hinged with one end of a link 53, and the other end of the link 53 is hinged with a positioning rod 54.

In this embodiment, during the deceleration braking process or the low-speed rotation process of the drum, the positioning rod 54 extends out to come into limit contact with the outer wall of the drum until the drum rotates to a fixed position, and then the positioning rod 54 extends into the positioning groove 55 to position the drum. Preferably, after the positioning rod extends into the positioning groove 55, a control signal is triggered to control the motor of the washing machine to stop working, so as to realize locking of the drum, and avoid the situation that the positioning rod 54 is broken due to rigid collision between the positioning rod 54 and the drum 200.

In this embodiment, the positioning rod 54 is mounted on the outer side of the outer cylinder 800 through the sleeve-shaped housing 56, and the outer cylinder 800 is provided with a through hole for the positioning rod 54 to pass through, so that the telescopic end of the positioning rod 54 correspondingly extends into the positioning groove 55 provided on the outer side of the roller 200, and the positioning rod is limited by the sleeve-shaped housing and can only generate axial telescopic displacement. In this embodiment, the positioning rod 54 and the positioning groove 55 are correspondingly disposed in the same rotation path section of the drum 200, so that the positioning rod 54 can be correspondingly inserted into the positioning groove 55.

In this embodiment, the positioning groove 55 and the drain opening 45 are staggered by a certain angle relative to the center of the drum 200, and the positioning rod 54 and the ejector rod 44 are staggered by the same angle relative to the center of the drum, so that the positioning rod 54 is correspondingly inserted into the positioning groove 55, and the ejector rod 44 can be simultaneously inserted into the drain opening 45 to eject the valve spool 413.

In this embodiment, the positioning structure 500 further includes a sleeve-shaped housing 56, and the sleeve-shaped housing 56 is radially mounted on the outer side of the outer cylinder 800 along the roller 200; the positioning rod 54 coaxially penetrates through the sleeve-shaped shell 56, one end of the sleeve-shaped shell 56 is in sealing arrangement and is provided with an opening for the telescopic end of the positioning rod 54 to penetrate out, and the end of the sleeve-shaped shell 56 is fixedly connected with the outer cylinder 800; the other end of the sleeve-shaped housing 56 is provided with a mounting plate 57 with a sealed opening, the driving motor 51 is fixedly mounted on one side of the mounting plate 57 away from the sleeve-shaped housing 56, and the rotating shaft of the driving motor 51 is arranged in parallel with the axis of the drum 200. Preferably, a spring 59 sleeved on the periphery of the positioning rod 54 is further arranged in the sleeve-shaped shell 56, one end of the spring 59 is connected with the sealed end of the sleeve-shaped shell 56 provided with the driving motor 51, and the other end of the spring 59 is connected with the positioning rod 54; the spring 59 is always in a compressed state, and the positioning rod has a tendency to pop up towards the inner direction of the roller due to the elastic force of the spring, so that the ejector rod is controlled to pop up in time after the eccentric wheel rotates.

In this embodiment, a disc-shaped eccentric wheel 52 is mounted at the rotation shaft of the driving motor 51, the disc-shaped eccentric wheel 52 is parallel to the axis of the positioning rod 54, the center of the disc-shaped eccentric wheel 52 is coaxially fixed with the rotation shaft of the driving motor 51, an eccentric shaft is arranged at the periphery of the disc-shaped eccentric wheel 52, and the axis of the eccentric shaft is perpendicular to the eccentric wheel 52. The extending direction of the connecting rod 53 is perpendicular to the axis of the eccentric shaft, and a first connecting hole is formed in the first end of the connecting rod 53 and hinged with the eccentric shaft; the second end of the connecting rod 53 is provided with a second connecting hole and is hinged with one end of the positioning rod 54 in the sleeve-shaped shell 56. Preferably, the first connecting hole provided at the first end of the connecting rod 53 is a long hole extending along the axial direction of the connecting rod 53, and the extending length of the long hole is larger than the diameter of the eccentric shaft, so as to provide a movable allowance for the connecting rod and promote the running smoothness of the crank-connecting rod mechanism. Preferably, the mounting plate 57 is provided with a bearing seat 510 for the positioning rod 54 to pass through and be mounted, and the lower end of the positioning rod 54 correspondingly passes through the mounting plate 510 and is hinged with the second end of the connecting rod 53.

In this embodiment, a dynamic sealing structure 519 for passing through the positioning rod 54 is disposed on the inner side of the sleeve-shaped housing 56 facing the outer cylinder, and the dynamic sealing structure 519 seals the side of the sleeve-shaped housing 56 facing the outer cylinder and allows the ejector rod to axially extend and retract, so as to isolate the interior of the housing from the outer cylinder and prevent water in the outer cylinder from flowing into the housing. Preferably, the dynamic seal structure 519 is annular in shape capable of radial expansion and contraction deformation, the annular inner periphery is in sealing connection with the outer wall of the positioning rod 54, and the annular outer periphery is in sealing connection with the housing 56.

In this embodiment, a bellows 58 is disposed in the sleeve-shaped housing 56, and two ends of the bellows 58 are respectively fixed to the mounting plate 57 and the positioning rod 54; the locating rod 54 is sleeved in the corrugated pipe 58, the spring 59 is sleeved on the periphery of the locating rod 54 and the inner periphery of the corrugated pipe 58, two ends of the spring 59 are respectively connected with the mounting plate 57 and the locating rod 54, and the upper end of the spring 59 is fixed with the connecting part of the locating rod 54 and the corrugated pipe 58.

In this embodiment, the outer cylinder 800 is provided with a through hole through which the positioning rod 54 passes, the upper end of the sleeve-shaped housing 56 is correspondingly mounted at the through hole of the outer cylinder 800, and the upper end of the sleeve-shaped housing 56 is hermetically connected with the periphery of the through hole so as to correspondingly seal the through hole. The corrugated pipe is arranged in the shell, so that the inner part of the shell is divided into two mutually independent parts, and the washing water is prevented from flowing into the corrugated pipe and affecting the telescopic movement of the positioning rod.

Example III

As shown in fig. 8 to 10, the present embodiment describes a water inlet structure 900 of a top-opening type drum washing machine, the washing machine includes a drum 200 installed in a housing 100 and having no dehydration holes, a laundry inlet 3 is provided on a sidewall of the drum 200, and a door 300 for turning over and opening and closing the laundry inlet is provided on the drum 200; the two ends of the drum 200 are sealed, the center of the sealed end 2 is rotatably connected with the casing 100 through a rotating shaft 11, the rotating shaft 11 at least one end is formed by a hollow sleeve, and the hollow part forms a flow passage 90 and is communicated with a water inlet pipe of the washing machine.

By arranging the water inlet structure at the central rotating shaft of the roller, the use function of the top-open washing machine for water inlet into the non-porous roller is realized, so that the non-porous roller can smoothly inlet water.

In this embodiment, the center of the sealing end 2 of the roller 200 is provided with a water inlet cavity 99 protruding inwards, the penetrating end of the rotating shaft 11 stretches into the water inlet cavity 99, and a flow passage 90 formed by the hollow part of the rotating shaft 11 is communicated with the water inlet cavity 99; the water inlet cavity 99 is provided with at least one water outlet 98 which communicates the water inlet cavity 99 with the interior of the drum 200.

In the embodiment, a water inlet end cover 91 which is installed on the inner wall of the cylinder in a bowl shape in an inverted manner is arranged at the center of the sealing end 2 of the cylinder 200, and the water inlet end cover 91 and the wall of the cylinder 200 jointly enclose a water inlet cavity 99; at least one hollowed-out portion 98 is provided on the water inlet end cover 91 to communicate the water inlet cavity 99 with the interior of the drum 200.

The water inlet end cover is arranged on the drum of the washing machine, so that the water inlet pipe is communicated with the inside of the drum through a plurality of water outlets facing different directions, and the situation that the water inlet of the washing machine is blocked due to single water outlet of the water inlet pipe is avoided. Meanwhile, the water inlet end cover is arranged at the center of the sealing end of the non-porous roller, so that the water inlet flow is blocked by the water inlet end cover to generate divergent sputtering, the coverage area of the water inlet flow is further improved, and the soaking effect of clothes is further improved. Meanwhile, a water inlet cavity which is formed by enclosing a water inlet end cover and the inner wall of the roller together is arranged in the roller, so that the water inlet flow is buffered, and the water inlet smoothness is improved.

In this embodiment, the water inlet end cover 91 is coaxially disposed with the rotating shaft 11, and a plurality of hollow portions 98 are arranged on the side wall of the bowl-shaped water inlet end cover 91; the penetrating end of the rotating shaft 11 extends into the water inlet cavity 99 from the open side of the bowl-shaped water inlet end cover 91; preferably, a circular hollow portion 98 coaxially arranged with the rotating shaft 11 is arranged on the bottom wall of the bowl-shaped water inlet end cover 91.

In this embodiment, an outer cylinder 800 is disposed outside the drum 200, a water passing cavity 96 into which the penetrating end of the rotating shaft 11 extends is disposed on the outer cylinder 800, a flow channel 90 formed by the hollow portion of the rotating shaft 11 is communicated with the water passing cavity 96, and a water inlet pipe of the washing machine is communicated with the water passing cavity 96, so that the water inlet pipe is communicated with the flow channel 90 inside the rotating shaft 11 through the water cavity 96. Through being linked together the pivot through water cavity and washing machine inlet tube for carry out sealed intercommunication between pivoted pivot and the stationary inlet tube, guaranteed the smoothness of rivers.

In the embodiment, a sleeve-shaped bearing seat 92 is arranged at the center of an outer cylinder 800, one end of the bearing seat 92 is fixed with the outer cylinder 800, the other end of the bearing seat is buckled and fixed with a bearing cover 93, and a bearing 97 for assembling a rotating shaft 11 is arranged in the sleeve-shaped bearing cover 93; the center of the bearing cap 93 is provided with a groove provided to be opened toward one side of the rotation shaft 11, and the groove constitutes a water passing chamber 96.

In this embodiment, the opening of the groove is provided with a circle of sealing rings 94; the penetrating end of the rotating shaft 11 extends into the water passing cavity 96 from the opening of the groove, the inner periphery of the sealing ring 94 is sealed with the outer periphery of the rotating shaft 11, and the outer periphery of the sealing ring 94 is sealed with the inner wall of the groove.

In this embodiment, an opening is provided on a side of the recess opposite to the opening, and a connector 95 is provided on the bearing cover 93 and is connected to the connector 95 through a water inlet pipe of the washing machine.

In this embodiment, the outer cylinder 800 is sleeved outside the drum 200, and the upper part of the outer cylinder 800 is connected with the casing 100 through the suspension springs 82 and/or the lower part through the shock absorbing rods 83; the outer cylinder 800 is in a cylinder shape, two ends of the cylinder outer cylinder 800 are sealed, a rotating shaft 11 which is formed by a sleeve and penetrates through the center of the sealed end 2 is arranged, the rotating shaft 11 extends along the axis of the drum 200, the rotating shaft 11 can be assembled on the outer cylinder 800 in a relatively rotatable manner through a bearing 97, the penetrating end of the rotating shaft 11 stretches into the outer cylinder 800 and is fixed with the drum 200, and the penetrating end of the rotating shaft 11 is communicated with a water inlet pipe of the washing machine through a water cavity 96.

Example IV

As shown in fig. 11 to 16, the present embodiment describes a ventilation structure of a top-open type drum washing machine, the washing machine including a drum 200 installed in a housing 100 without a dehydration hole, both ends of the drum 200 being sealed to enclose a sealed container; the drum 200 is provided with ventilation holes 60, and ventilation valves 600 are installed at the ventilation holes 60, so that the inside and the outside of the drum 200 are connected with each other through the ventilation valves 600 in an air flow manner, and the water flow is blocked. Through the breather hole that is arranged on the outside and is communicated with the outside on the roller, the inside of the roller without the dehydration hole can exchange air with the outside so as to adjust the pressure inside the roller, thereby realizing the purpose of smoothly feeding water into the roller or smoothly discharging water outwards.

As shown in fig. 13, in the present embodiment, a bi-directional ventilation valve 603 is installed at the ventilation hole 60, so that the air inside or outside the drum 200 flows to the outside or inside of the drum through the ventilation valve 603. In this embodiment, the air hole is disposed at a sealing end of one side of the drum, and is located above the center of the drum after the drum stops rotating to a fixed position.

In this embodiment, the bi-directional ventilation valve 603 includes a valve plate 62 covering the ventilation holes 60, the valve plate 62 is flat, and the valve plate 62 is provided with a slit 63.

In this embodiment, the breather valve 600 further includes a bracket 61 installed at the breather hole 60, the bracket 61 includes a disk shape having a plurality of hollowed-out portions 64 covering the breather hole 60, and the outer periphery of the disk-shaped bracket 61 is sealed and fixed with the inner periphery of the breather hole 60; the bracket 61 is covered and paved with a valve plate 62 on one side far away from the roller 200, and the valve plate 62 is provided with a slit 63 through which only air flows.

In this embodiment, the support 61 includes two annular supporting ribs with coaxial arrangement and unequal diameters, the outer annular supporting rib and the inner annular supporting rib are connected by a plurality of connecting ribs extending along radial direction, the connecting ribs are uniformly arranged at equal intervals, and two ends of each connecting rib are respectively connected with the inner periphery of the outer annular supporting rib and the outer periphery of the inner annular supporting rib.

In this embodiment, the outer ring support rib has a certain extending width along the axial direction, one side of the outer ring support rib close to the interior of the roller is connected with the connecting rib, and one side of the outer ring support rib far away from the roller 200 is paved with the valve plate 62.

In this embodiment, the valve plate 62 is made of an elastic material, so as to deform itself under the action of pressure difference between two sides to close or open the slit 63 provided on the valve plate 62; preferably, the split 63 on the valve plate 62 is in a cross shape, and the center of the cross shape is overlapped with the center of the ventilation hole 60.

Example five

As shown in fig. 17 to 20, the present embodiment differs from the fourth embodiment in that: two ventilation holes 611 and 612 are formed in the same sealing end 2 of the drum 200, and a first unidirectional ventilation valve 601 and a second unidirectional ventilation valve 602 are respectively arranged on the two ventilation holes, so that the directions of the gas flowing through the two ventilation holes are opposite.

As shown in fig. 18, in this embodiment, the first unidirectional ventilation valve 601 includes a valve plate 63 covering the first ventilation hole 611, the valve plate 63 is in a cone shape protruding outwards of the drum 200, and a slit 62 is provided on the cone-shaped valve plate 63; as shown in fig. 19, the second one-way ventilation valve 602 includes a valve plate 63 covering the second ventilation hole 612, the valve plate 63 is tapered to protrude into the drum 200, and a slit 62 is formed in the tapered valve plate 63.

In this embodiment, the washing machine is further provided with a positioning structure 500 to control the drum 200 to stop rotating to a fixed position, and the first ventilation holes 611 are located above the second ventilation holes 612 when the drum 200 rotates to the fixed position; preferably, when the drum 200 rotates to the fixed position, the first air holes 611 are positioned at the upper side of the center of the drum 200, and the second air holes 612 are positioned at the lower side of the center of the drum 200; it is further preferable that the first and second airing holes 611 and 612 are vertically above and below the center of the drum 200, respectively, when the drum 200 is rotated to a fixed position. Preferably, the positioning structure 500 in this embodiment may adopt the positioning structure described in the second embodiment, or may adopt other technical solutions in the prior art for positioning the roller.

In this embodiment, the valve plate 62 is made of an elastic material, so as to deform itself under the action of pressure difference between two sides to close or open the slit 63 provided on the valve plate 62; preferably, the split 63 on the valve plate 62 is in a cross shape, and the center of the cross shape is overlapped with the center of the ventilation hole 60.

Example six

As shown in fig. 11 to 20, in this embodiment, a mounting structure of the breather valve 600 according to the fourth or fifth embodiment is described, the breather valve 600 includes a valve plate 62, and a slit 63 through which only the gas flows is provided in the valve plate 62; the valve plate 62 is assembled on the mounting structure, the mounting structure comprises a bracket 61 arranged at the air vent 60 of the roller 200, the bracket 61 comprises a disk-shaped main body which covers the air vent 60 and is provided with a plurality of hollowed-out parts, and the outer periphery of the disk-shaped bracket 61 is sealed and fixed with the inner periphery of the air vent 60; a valve plate 62 is laid on one side of the bracket 61 away from the roller, and a slit 63 through which only air flows is formed in the valve plate 62. The valve plate 62 is spaced from the disc-shaped support 61 by a certain distance to provide a space for deformation of the valve plate 62.

Through the arrangement, the valve plate can be fixedly assembled on the ventilation holes of the roller, so that the fixed installation of the ventilation valve plate is realized; meanwhile, due to the blocking effect of the support, the valve plate is prevented from being in direct contact with clothes and water flow in the roller, and further the valve plate is prevented from being damaged due to direct impact.

In this embodiment, the support 61 includes two annular supporting ribs with coaxial arrangement and unequal diameters, the outer annular supporting rib and the inner annular supporting rib are connected by a plurality of connecting ribs extending along radial direction, the connecting ribs are uniformly arranged at equal intervals, and two ends of each connecting rib are respectively connected with the inner periphery of the outer annular supporting rib and the outer periphery of the inner annular supporting rib. Further preferably, the inner ring annular supporting rib is arranged close to the inside of the roller relative to the outer ring annular supporting rib, so that the connecting rib extends in an inward inclined manner.

In this embodiment, the outer loop supporting rib has certain extension width along the axial, and the one side that the outer loop supporting rib is close to the cylinder inside links to each other with the connecting rib, and the one side that keeps away from the cylinder lays and is covered with the valve block.

In this embodiment, the valve plate 62 is made of an elastic material, so as to deform itself under the action of pressure difference between two sides to close or open the slit 63 provided on the valve plate 62; preferably, the split 63 on the valve plate 62 is in a cross shape, and the center of the cross shape is overlapped with the center of the ventilation hole 60.

In this embodiment, the valve plate 62 may be a plate-shaped bidirectional valve plate capable of bidirectionally flowing air flow to two sides; or the valve plate can be a cone-shaped one-way valve plate which can only flow air in a one-way at the convex side.

In the embodiment, the drum 200 is provided with the ventilation holes 60, the brackets 61 are correspondingly covered and assembled in the ventilation holes 60, and the outer circumferences 61 of the brackets are in sealing fit with the inner walls of the ventilation holes 60; preferably, the outer ring support ribs of the bracket 61 are correspondingly and hermetically attached to the inner wall of the ventilation holes 60; further preferably, the inner side and the outer side of the outer ring support rib are respectively provided with a turned edge which is bent outwards, and the turned edges are correspondingly attached to the inner side and the outer side of the roller 200, so that the bracket 61 is fastened and assembled on the roller 200.

Example seven

As shown in fig. 21 to 23, the present embodiment describes a drum door structure of a top-opening type drum washing machine, the washing machine includes a drum 200 installed in a housing 100 and having no dehydration holes, a laundry inlet 3 is provided on a sidewall 1 of the drum 200, and a door 300 for controllably opening and closing the laundry inlet 3 is provided on the drum 200; the door 300 has one side hinged to the drum 200 about the rotation shaft 31 and the opposite end provided with a rotatable locking tongue 32 so that the locking tongue 32 rotated about the shaft is locked to or disengaged from the drum 200.

In this embodiment, the latch tongue 32 is rotatably mounted on the door cover 300, and the rotation axis of the latch tongue 32 extends radially along the drum 200; at least part of the locking tongue 32 protrudes outside the door cover 300, and the protruding part is provided with a locking hook 320 protruding toward the inside of the drum 200; the outer wall of the drum 200 is provided with a locking groove 33 into which the locking hook 320 is correspondingly cut.

In this embodiment, the outer side of the drum 200 is provided with a locking groove 33, one side of the locking groove 33 is provided with an opening into which the lock tongue 32 slides, and the locking groove 33 and the lock tongue 32 are at least partially in a coincident plane so as to be interlocked after the lock tongue 32 correspondingly slides into the locking groove 33.

In this embodiment, the locking bolt 32 includes a sheet-shaped plate extending along the outer side of the roller 200, a rotating shaft 37 protruding downward is disposed in the middle of the sheet-shaped plate, the rotating shaft 37 passes through a through hole formed in the door cover 300, the penetrating end of the rotating shaft 37 is fixedly connected with a fixing member, and the periphery of the fixing member exceeds the through hole, so that the locking bolt 32 in the shape of sheet-shaped plate can be rotatably mounted on the door cover 300 around the rotating shaft 37. Preferably, the sheet plate forming the lock tongue slides into the lock groove, and the thickness of the sheet plate is gradually reduced to guide the lock tongue to slide into the lock groove and lock the lock groove; further preferably, the opening to be detected of the locking groove is a gradually narrowed horn mouth, so that smoothness of sliding of the lock tongue is further improved.

In this embodiment, a strip-shaped handle bar 36 protruding upward is provided on the upper side of the locking tongue 32 of the sheet-shaped plate, and the handle bar 36 extends along the periphery of any section of the roller 200, so as to facilitate the user to hold and twist the locking tongue 32.

In this embodiment, one side of the sheet-shaped latch tongue 32 protrudes beyond the door cover 300, and the protruding portion is provided with a protruding rib protruding toward the inner side of the drum 200, so that the protruding rib of the protruding portion forms the latch hook 320. Preferably, one side of the convex rib, which faces the rotating shaft, is arc-shaped; the locking groove 33 on the roller 200 is in a corresponding circular arc shape near the rotating shaft, so that the convex ribs correspondingly slide into the locking groove 33 and then contact with the contact surface near the rotating shaft, thereby improving locking stability. It is further preferred that the handle bars 36 extend in a radial direction through the center of the circular arc shaped bead.

In this embodiment, the outer side of the drum 200 is provided with an outwardly protruding rib 34, and a side of the rib 34 away from the rotating shaft 37 forms a locking groove 33; the extending end of the rib 34 is in limit contact with the lower side of the lock tongue 32 of the sheet plate; the side of the rib 34 away from the rotating shaft 37 presents an arc surface correspondingly attached to and contacted with the lock hook 320, the distance between the arc surface on the outer side of the rib 34 and the center of the rotating shaft 37 is equal to the distance between the arc surface on the inner side of the lock hook 320 and the center of the rotating shaft 37, and the rib 34 and the lock hook 320 are at least partially overlapped in the height direction so as to be interlocked when the lock tongue 32 rotates to be contacted with the rib 34.

In this embodiment, a pressing piece 35 extending along the periphery of the roller 200 is further disposed on the outer side of the roller 200, and the pressing piece 35 is located on one side of the rib 34 away from the rotating shaft 37; one side of the pressing sheet 35, which is far away from the rib 34, is fixed with the roller 200, and the other side is positioned above the rib 34 with a certain gap, and the gap can be used for extending the sheet-shaped plate-shaped lock tongue 32; preferably, the upper side of the tongue 32 of the sheet-like plate material is in contact with the lower side of the pressing piece 35, so that the clearance space between the pressing piece 35 and the rib 34 forms the locking groove 33. It is further preferable that one end of the pressing piece 35 is bent toward the drum 200 to be connected in a sealing manner, so that the locking groove 33 formed by the gap between the pressing piece 35 and the rib 34 is provided with one end sealed and the other end opened.

In this embodiment, a mounting groove recessed into the drum is provided on the drum 200, and the rotating shaft 37 passing through the door 300 is correspondingly provided in the mounting groove; one side of the mounting groove, which is close to the clothes putting opening 3, is provided with a sealing ring 360, at least part of the sealing ring 360 protrudes out of the roller 200, and after the door cover 300 is buckled on the clothes putting opening 3, the sealing ring 360 is extruded by the buckled door cover 300 to seal the buckling position.

In this embodiment, a plurality of lock tongues 32 are arranged on one side of the door cover, a plurality of lock grooves 33 are arranged on the corresponding side of the clothes putting opening 3 of the drum 200, and each lock tongue 32 and each lock groove 33 are arranged in a one-to-one correspondence manner, so as to increase the number of closed locking electricity between the door cover and the drum and improve the stability of assembling the door cover. And openings of the locking grooves 33, into which the corresponding locking bolts 32 slide, are arranged towards the same side, so that a user can rotate the locking bolts to open the door cover.

Example eight

As shown in fig. 11 and 12, in the present embodiment, there is described a top-opening type drum washing machine, which includes a drum 200 installed in a housing 100 and having no dehydration holes, a laundry inlet 3 provided on a sidewall 1 of the drum 200, and a door 300 provided on the drum 200 to controllably open and close the laundry inlet 3; the sidewall 1 of the drum 200 is provided with a plurality of lifting ribs 210 protruding inwards, and the opposite side of the drum 200 toward the laundry input opening 3 is provided with a drainage structure 400, the center of gravity of the drum 200 being located at the central axis.

Through the arrangement, the gravity center of the non-porous roller of the top-opening roller washing machine is positioned on the axis, and further, the occurrence of offset in the rotation process of the roller is avoided.

In this embodiment, when the drum 200 is at the fixed position, the laundry inlet 3 is at the top of the drum 200, and the drain structure 400 is at the bottom of the drum 200.

In this embodiment, three lifting ribs 210 are arranged on the inner side of the sidewall 1 of the drum 200, wherein two lifting ribs 210 are respectively disposed on the left and right sides of the laundry inlet 3, and another lifting rib 210 is disposed on the opposite side of the laundry inlet 3. Preferably, the lifting rib 210 at the opposite side of the laundry input opening 3 is disposed to be offset toward the hinge side of the door 300 such that the center of gravity of the drum 200 is at the center.

In this embodiment, each lifting rib 210 extends along a structural line of the wall of the drum 200.

In this embodiment, the drain structure 400 includes a drain opening 45 disposed on a sidewall of the drum, and a center of the drain opening 45 is opposite to a center of the door 300 with respect to an axis of the drum 200.

In this embodiment, the washing machine is provided with a positioning structure 500 to control the drum 200 to stop to a fixed position when stopping rotating. The positioning structure 500 includes a positioning groove 55 provided on the sidewall 1 of the drum 200, and the positioning groove 55 is provided on a side of the lifting rib 210 provided on the opposite side of the laundry putting-in opening 3 away from the drain opening 45, so that the center of gravity of the drum 200 is at the center. It is further preferred that the drain structure 400 is in the same radial direction of the drum 200 as the center of the door 300.

The foregoing description is only illustrative of the preferred embodiment of the present invention, and is not to be construed as limiting the invention, but is to be construed as limiting the invention to any simple modification, equivalent variation and variation of the above embodiments according to the technical matter of the present invention without departing from the scope of the invention.

Claims (10)

1. A drum washing machine comprises a drum which is arranged in a shell and is not provided with a dehydration hole, wherein a clothes putting opening is arranged on the side wall of the drum, and a door body capable of turning over, opening and closing the clothes putting opening is arranged on the drum; the washing machine is characterized in that a positioning structure for performing a positioning function in the process of stopping rotation of the drum is arranged on the washing machine so as to stop the drum to a fixed position;

a water outlet is arranged on the roller, and a valve core corresponding to the closed opening is arranged at the water outlet; the valve core is correspondingly covered and arranged on the inner side of the roller, the valve core is connected with the roller through a spring, and the spring applies elastic pressure to the valve core along the radial direction of the roller from inside to outside so that the valve core seals the water outlet;

The inner side of the roller is provided with a bracket cover which is opposite to the water outlet, the periphery of the bracket cover is fixedly connected with the roller, the valve core is arranged between the bracket cover and the water outlet, a certain movable gap is arranged between the valve core and the bracket cover, a spring which extends along the radial direction of the roller and is in a compressed state is arranged in the movable gap, and two ends of the spring are respectively abutted against the bracket cover and the valve core;

the washing machine is also provided with a drainage structure, the drainage structure comprises a push rod which can move along the radial direction of the roller in a telescopic way, and the push rod and the water outlet are arranged in the same rotary section of the roller, so that the telescopic end of the push rod can correspondingly extend into the water outlet; when the drum rotates to a fixed position, the ejector rod is correspondingly inserted into the water outlet, and the clothes throwing opening of the drum faces to an opening arranged on the shell of the washing machine;

the drainage structure also comprises a sleeve-shaped shell, the ejector rod is coaxially arranged in the sleeve-shaped shell in a penetrating way, one end of the sleeve-shaped shell is sealed, and an opening for the telescopic end of the ejector rod to penetrate out is formed in the sleeve-shaped shell, so that the ejector rod can only move in a telescopic way along the radial direction of the roller under the limiting action of the sleeve-shaped shell; the other end of the sleeve-shaped shell is fixedly arranged on the shell.

2. The drum washing machine as claimed in claim 1, wherein the positioning structure comprises a positioning groove formed in the outer circumference of the drum and recessed in the drum, and a positioning rod capable of moving radially and telescopically along the drum, the positioning rod and the positioning groove being formed in the same drum rotation section, so that the telescopic end of the positioning rod can correspondingly extend into the positioning groove; when the positioning rod is inserted into the positioning groove, the roller rotates to a fixed position, and the clothes putting opening of the roller faces to an opening arranged at the top of the washing machine shell.

3. A control method of a drum washing machine as claimed in claim 1 or 2, wherein the washing machine comprises a drum which is installed in a shell and is not provided with a dehydration hole, a laundry putting opening is arranged on the side wall of the drum, and a door body capable of turning over to open and close the laundry putting opening is arranged on the drum; the method is characterized in that: the limiting action is carried out on the roller in the braking process of the roller, so that the roller is stopped to a fixed position, and the clothes throwing opening on the roller faces the opening arranged on the shell of the washing machine.

4. A control method of a drum washing machine according to claim 3, wherein,

after the washing machine executes the dewatering program, the roller is braked, and the roller is positioned in the braking process, so that the roller is stopped to a fixed position, and a clothes putting opening on the roller faces to an opening arranged on the washing machine shell; the opening on the shell of the washing machine is arranged towards the upper side;

after the roller stops to a fixed position, the roller is locked and limited, so that the roller is kept at the fixed position and does not rotate any more, and a user can open and close the door body at the clothes putting opening of the roller by stretching into the opening.

5. The control method of a drum washing machine as claimed in claim 4, wherein after the washing machine performs the dehydrating process, the drum is stopped to a fixed position until the washing machine starts to perform the next washing process.

6. A control method of a drum washing machine as claimed in claim 3, wherein the drum is controlled to be stopped at a fixed position when the washing process is stopped during the washing process of the washing machine.

7. The control method of a drum washing machine as claimed in claim 6, wherein the door cover at the opening of the washing housing is controlled to be unlocked after the drum is stopped to the fixed position.

8. A control method of a drum washing machine according to any one of claims 3 to 7, wherein the drum repeatedly performs the dehydrating step, the braking stall step, and the holding stationary step during the dehydrating process performed by the washing machine; in the dehydration step, the drum rotates at a high speed, and water on the laundry is separated by centrifugal force; in the braking and stopping step, the roller is stopped to a fixed position under the positioning action; and keeping the drum stationary, keeping the drum at a fixed position, and opening a water outlet valve to enable water separated from clothes in the drum to be discharged from the water outlet.

9. A control method of a drum washing machine as claimed in claim 8, wherein the washing water separated from the dehydration of the laundry in the drum is concentrated by centrifugal force to flow into the water storage groove protruding outward from the drum wall, and the water in the water storage groove is discharged from the opened water discharge opening after the drum stops rotating.

10. A control method of a drum washing machine according to any one of claims 3 to 7, wherein the drum rotates at a high speed during the dehydration process of the washing machine, and a centrifugal valve provided at the opening of the drum is opened by centrifugal force to drain the washing water in the drum from the opening.

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