CN111041761B - Drum washing machine - Google Patents

Abstract

The invention discloses a drum washing machine, which comprises a non-porous 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 non-porous drum, and a door body capable of turning over, opening and closing the clothes throwing opening is arranged on the drum; the outer cylinder is sleeved outside the roller, and an electromagnetic heating module is arranged on the outer cylinder so as to heat the inner part of the outer cylinder and transfer the heating heat to the washing water contained in the roller. The electromagnetic heating module is arranged on the outer cylinder so as to heat the roller in the outer cylinder and the washing water in the roller by utilizing an electromagnetic field, thereby achieving the purpose of adjusting the temperature of the washing water in the roller of the washing machine.

Description

A drum washing machine

technical field

The present invention relates to washing machine equipment in household appliances, in particular to a top-loading drum washing machine, in particular to a drum washing machine whose drum is composed of a non-porous inner cylinder without dehydration holes and whose top is provided with a clothes feeding port .

Background technique

Washing machines can generally be classified into pulsator type, agitator type and drum type washing machines. Generally speaking, washing machines remove stains from laundry through the action of water and detergent.

The pulsator washing machine performs washing operations by rotating a pulsator in the center of the washing tub left and right. The agitator washing machine uses the friction between the water flow and the laundry to perform the washing operation by rotating the rotating blade in the center of the washing tank left and right. The drum type washing machine beats the clothes by rotating the drum to perform the washing operation.

A drum-type washing machine generally has a housing, an outer cylinder for containing washing water is installed inside, a drum for accommodating laundry is arranged inside the outer drum, and a motor and shaft for rotating the above-mentioned drum are arranged on the back of the outer drum.

In addition, there is also a control unit for controlling the laundry process, generally a control panel, water inlet and drainage mechanisms, and the like. The drum type washing machine removes stains contained in the laundry using the frictional force between the washing water stored in the water tank and the laundry in the drum, and the chemical action of the detergent contained in the washing water.

As an important part of the washing machine, the washing drum is not only used to accommodate the washing, constitute the washing container, but also participate in the washing work, especially the drum washing machine, which mainly relies on the rotation of the washing drum to lift and throw the clothes to form a beating effect At the same time, the washing drum also has a certain rubbing effect on the clothes, thus relying on beating and washing to create the washing effect; and in addition to the pulsator washing, many existing pulsator washing machines also use the washing drum to wash at the same time, such as the popular on the market. The so-called "dual power" washing machine.

Compared with the pulsator washing machine, the weakness of the drum washing machine is that since the door is set on the front side, it is inconvenient to open the door to add clothes again after entering the water, and to put or take out the clothes, one has to bend down or squat down to get the clothes. It is very inconvenient for the elderly or pregnant women. Thus there has been a top-loading drum washing machine, which has the advantages that the drum washing machine is clean and wears little, and the upper opening of the pulsator washing machine takes and places clothes and can add clothes midway.

Now, because there is generally a large amount of dirt between the inner and outer cylinders of the drum washing machine, in order to avoid the pollution of the washing water, the applicant has previously proposed a non-porous drum washing machine that combines the inner and outer drums into one to overcome the gap between the inner and outer drums. The problem of dirt remaining in the room. Therefore, how to apply the non-porous drum technology to the top-loading washing machine has become a research and development hotspot.

Also, how to heat the washing water inside the non-porous drum has become a problem to be solved.

In view of this, the present invention is proposed.

Contents of the invention

The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a drum washing machine to realize the purpose of setting a top-opening door body on the drum washing machine, so that the drum can simultaneously accommodate the washing water and use its own rotation to clean the clothes. The double effect of washing can further achieve the purpose of avoiding the retention of dirt in the drum of the washing machine and realizing the no-cleaning in the drum of the washing machine; another object of the present invention is to provide a heating structure of a non-porous drum washing machine to realize the washing in the drum of the non-porous drum. The purpose of heating and regulating the water temperature.

In order to solve the problems of the technologies described above, the basic idea of the technical solution adopted in the present invention is:

A drum washing machine, which includes a non-porous drum installed in a casing without dehydration holes, a clothes inlet is provided on the side wall of the non-porous drum, and a door body that can be turned over to open and close the clothes inlet is provided on the drum; The drum is set on the outside of the drum, and the outer drum is equipped with an electromagnetic heating module to heat the inside of the outer drum and transfer the heating heat to the washing water contained in the drum.

Further, at least part of the drum is made of metal material, which can generate eddy current effect to generate heat by the magnetic field generated by the electromagnetic heating module; the outer cylinder is made of plastic material that does not excite eddy current effect in the magnetic field.

Furthermore, the electromagnetic heating module is arranged on the side wall of the outer cylinder, and the side walls of the drum are all made of metal materials.

Further, the electromagnetic heating module is arranged at the lowest part of the outer cylinder.

Further, at least one electromagnetic heating module is arranged on the outer cylinder.

Further, the electromagnetic heating module includes a plastic shell, and the interior of the plastic shell is hollow to form an installation cavity with one side open, and an electromagnetic generator is installed in the installation cavity; the plastic shell is fixedly installed on the outside of the outer cylinder, and the installation cavity of the plastic shell The opening is arranged towards the inside of the outer cylinder; preferably, a shielding device is arranged on the outside of the plastic shell to isolate the magnetic field from being transmitted to the outside of the outer cylinder.

Further, the two ends of the non-porous drum are sealed, and the center of the sealed end is connected to the casing through a rotating shaft so that it can rotate relatively. At least one end of the rotating shaft is formed by a hollow sleeve, and the hollow part forms a flow channel and communicates with the water inlet pipe of the washing machine; Preferably, the center of the sealing end of the non-porous drum is provided with an inwardly protruding water inlet chamber, and the penetrating end of the rotating shaft extends into the water inlet chamber; at least one water outlet is provided on the water inlet chamber, and the water outlet connects the water inlet chamber and the water inlet chamber. The imperforate rollers are connected.

Further, the outside of the non-porous drum is provided with an outer cylinder, and the outer cylinder is provided with a water passage through which the rotating shaft penetrates. Pass.

Further, a sleeve-shaped bearing seat is installed at the center of the outer cylinder, one end of the bearing seat is fixed to the outer cylinder, and the other end is buckled and fixed with a bearing cover, and a bearing for assembling the rotating shaft is installed in the sleeve-shaped bearing cover; the bearing cover The center of the shaft is provided with a groove open to one side of the rotating shaft, and the groove constitutes a water chamber.

Further, the opening of the groove is provided with a ring sealing ring; the penetrating end of the rotating shaft extends into the water chamber from the opening of the groove, the inner circumference of the sealing ring is sealed with the outer circumference of the rotating shaft, and the outer circumference of the sealing ring is connected with the inner wall of the groove. Preferably, an opening is provided on the side of the groove opposite to the opening, and a joint connected to the inside of the water chamber is provided on the bearing cover, and the water inlet pipe of the washing machine is connected to the joint.

Further, the outer cylinder is set on the outside of the drum, and the upper part of the outer cylinder is connected to the shell through the suspension spring and/or the lower part through the shock absorbing rod; the outer cylinder is cylindrical, and the two ends of the cylindrical outer cylinder are sealed. At the center, there is a rotating shaft formed by a sleeve that runs through. The rotating shaft extends along the axis of the non-porous roller. The rotating shaft is relatively rotatable and assembled on the outer cylinder through the bearing. The penetrating end of the rotating shaft extends into the outer cylinder and connects with the non-porous inner cylinder. is fixed, and the outlet end of the sleeve communicates with the water inlet pipe of the washing machine through the water chamber.

After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art:

Through the above arrangement, the purpose of setting the clothes inlet on the side wall of the drum of the washing machine is realized, and the clothes inlet provided by the drum is sealed and closed by the door body, or opened to pick and place the clothes; at the same time, the clothes inlet is arranged on the drum The side wall enables the user to open the door body from the upper part of the washing machine to take and place the clothes in the drum; more particularly, the clothes inlet of the drum is sealed and set through the door body, so that the drum can be set as a sealed container, allowing the drum to wash During the process, both ends of the drum can be supported by the rotating shaft, which avoids the eccentric rotation of the drum.

By setting the drum of the washing machine as a sealed container without dehydration holes, the drum has the dual functions of the outer drum for holding water and the inner drum for stirring, and avoids the outer wall of the inner drum and the outer wall of the outer drum caused by the flow of washing water between the inner and outer drums. The occurrence of dirt remaining on the inner wall of the drum improves the cleanliness of the drum of the washing machine and achieves the purpose of no-cleaning of the washing machine.

By arranging the above-mentioned water inlet structure at the central rotating shaft of the drum, the use function of the top-loading washing machine to feed water into the non-porous drum is realized, so that the non-porous drum can smoothly enter water.

By arranging the above-mentioned electromagnetic heating module on the outer cylinder, the drum inside the outer drum and the washing water inside the drum are heated by using electromagnetic field, so as to achieve the purpose of adjusting the temperature of the washing water in the drum of the washing machine.

Simultaneously, the present invention has simple structure, remarkable effect, and is suitable for popularization and use.

The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings.

Description of drawings

The accompanying drawings, as a part of this application, are used to provide a further understanding of the present invention, and the schematic embodiments and descriptions of the present invention are used to explain the present invention, but do not constitute improper limitations to the present invention. Apparently, the drawings in the following description are only some embodiments, and those skilled in the art can obtain other drawings according to these drawings without creative efforts. In the attached picture:

Figure 1 and Figure 2 are structural schematic diagrams of different viewing angles of the washing machine in the embodiment of the present invention;

Fig. 3 and Fig. 5 are the cross-sectional structure diagrams of different radial sections of the washing machine in the embodiment of the present invention;

Fig. 4 is a schematic diagram of an enlarged structure at A in Fig. 3 according to an embodiment of the present invention;

Fig. 6 is a schematic diagram of an enlarged structure at B in Fig. 5 according to an embodiment of the present invention;

Fig. 7 is a schematic diagram of a cross-sectional structure at a water outlet in an embodiment of the present invention;

Fig. 8 is a schematic diagram of an axial cross-sectional structure of a washing machine in an embodiment of the present invention;

Fig. 9 is a schematic diagram of an enlarged structure at point C in Fig. 8 according to an embodiment of the present invention;

Fig. 10 is a schematic structural view of the water inlet end cover in the embodiment of the present invention;

Fig. 11 is a schematic cross-sectional structure diagram of a washing machine in an embodiment of the present invention;

Fig. 12 is a schematic cross-sectional structure diagram of the drum of the washing machine in the embodiment of the present invention;

Fig. 13 and Fig. 17 are installation schematic diagrams of ventilating structures in different embodiments of the present invention;

Fig. 14 is a schematic structural diagram of a mounting bracket of a ventilating structure in an embodiment of the present invention;

Fig. 15, Fig. 18 and Fig. 19 are cross-sectional structural schematic diagrams of different valve plate assemblies in the embodiment of the present invention;

Figure 16 and Figure 20 are structural schematic diagrams of different valve plates in the embodiment of the present invention;

Figure 21 and Figure 22 are structural schematic diagrams of the door body in different states in the embodiment of the present invention;

Fig. 23 is a schematic cross-sectional view of door assembly in an embodiment of the present invention;

Fig. 24 is a schematic structural view of a washing machine in an embodiment of the present invention;

Fig. 25 is a partial sectional view of the washing machine in the embodiment of the present invention.

In the figure: 100, shell; 200, roller; 300, door cover; 400, drainage structure; 500, positioning structure; 600, breathable valve; 800, outer cylinder; 900, water inlet structure; 1, side wall; 2, Sealing part; 3, clothing input port; 11, rotating shaft; 210 lifting rib; 82, hanging spring; 83, supporting member.

It should be noted that these drawings and text descriptions are not intended to limit the concept scope of the present invention in any way, but illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments.

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention , but not to limit the scope of the present invention.

In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer" and the like are based on the orientation or positional relationship shown in the accompanying drawings, and are only for It is convenient to describe the present invention and simplify the description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate 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 otherwise specified and limited, the terms "installation" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral Ground connection; it can be mechanical connection or electrical connection; it can be direct connection or indirect connection through an intermediary. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention in specific situations.

1 to 23, the embodiment of the present invention provides a washing machine, which includes a drum 200 installed in the washing machine casing 100; the drum 200 includes a side wall 1 surrounding a cylindrical structure, a cylindrical side wall 1 The two ends of the drum 200 are respectively blocked and sealed by the sealing part 2, and the side wall 1 of the drum 200 is provided with a clothes delivery port 3, and an openable and closable door cover 300 is provided at the 3 places of the clothes delivery port, so that the user can walk from the side wall 1 of the drum. Clothes delivery port 3 on the top picks and places clothes inwardly.

In the embodiment of the present invention, an outer cylinder 800 is also provided 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 the hanging spring 82 and the support member 83, so that the outer cylinder 800 The cylinder 800 is mounted inside the casing 100 to generate a vibration displacement. The drum 200 is coaxially fitted inside the outer cylinder 800, and both ends of the outer cylinder 800 are sealed, so that the outer cylinder 800 forms a sealed container for receiving water from the washing machine.

In the embodiment of the present invention, the drum 200 can be a sealed container that does not have a dehydration hole and is only provided with a clothes inlet 3 on the side wall 1 of the inner cylinder, so that the drum can simultaneously rotate, beat and wash the clothes, and seal the container. The dual purpose of washing water realizes the effect of combining the inner and outer cylinders of the drum washing machine into one and integrating them into the only drum.

In the embodiment of the present invention, an opening is provided on the top of the side wall of the outer cylinder 800, and the opening is set opposite to the clothes inlet 3 provided on the side wall 1 of the drum, so that after the rotation of the drum 200 stops, the user can The provided opening controls the opening and closing of the door cover 300 at the 3 places of the clothing delivery port, so as to realize the dropping and taking of the clothing.

In the embodiment of the present invention, the top of the washing machine housing 100 is also provided with an inlet, which is opposite to the opening on the outer cylinder 800 and the clothes outlet 3 on the drum side wall 1 . An openable and closable door is provided on the washing machine casing 100 to cover the insertion port correspondingly. At the same time, in order to prevent the water from spilling between the outer cylinder 200 and the housing 100, a door cover can be provided on the outer cylinder 800 to cover the opening of the outer cylinder 800; A sleeve is connected between the ports; the door body at the insertion port of the housing 100 can also be provided with a protruding portion protruding downward, and the protruding portion corresponds to the opening of the sealing outer cylinder 800 after the door body is closed. The opening of the outer cylinder 800 can be sealed by adopting the above methods, so as to avoid the occurrence of water overflowing between the outer cylinder 800 and the casing 100 during the normal washing process of the washing machine.

Through the above arrangement, the purpose of setting the clothes inlet on the side wall of the drum of the washing machine is realized, and the clothes inlet provided by the drum is sealed and closed by the door body, or opened to pick and place the clothes; at the same time, the clothes inlet is arranged on the drum The side wall enables the user to open the door body from the upper part of the washing machine to take and place the clothes in the drum; more particularly, the clothes inlet of the drum is sealed and set through the door body, so that the drum can be set as a sealed container, allowing the drum to wash During the process, both ends of the drum can be supported by the rotating shaft, which avoids the eccentric rotation of the drum.

Embodiment one

As shown in Figures 1 to 7, this embodiment introduces a drainage structure of a top-loading drum washing machine. The washing machine includes a drum 800 installed in the casing 100 without dehydration holes, and the side wall of the drum 200 is provided with Clothes delivery port 3, the drum 200 is provided with a door cover 300 that can be turned over to open and close the clothing delivery port; the drum 200 is provided with a drain port 45, and the drain port 45 is provided with a valve core 413 corresponding to the closed opening; A drainage structure 400 is installed to push away the valve core 413 and open the drain port 45 after the drum 200 rotates to a fixed position.

By arranging the above-mentioned structure on the drum, after the drum is rotated to a fixed position, the valve core provided at the drain outlet is correspondingly pushed open by the action of the drainage structure, so that the drain outlet of the non-porous drum is correspondingly opened, thereby realizing a top-opening non-porous drum washing machine The use function of smooth drainage.

In this embodiment, the spool 413 is correspondingly covered and arranged on the inner side of the drum 200, the spool 413 is connected to the drum 200 via a spring 414, and the spring 414 applies an elastic pressure to the spool 413 along the radial direction of the drum 200, from the inside to the outside, So that the spool 413 blocks the drain port 45 .

By connecting the valve core at the drain port with the drum through the spring, the valve core is subjected to the force of the spring to close the drain port in real time, avoiding the centrifugal force and water flow impact force during the drum rotation process acting on the valve core to drain water. The occurrence of a slip of the tongue opening situation.

In this embodiment, there is a bracket cover 411 arranged opposite to the drain outlet inside the drum 200, the outer periphery of the bracket cover 411 is fixedly connected with the drum 200, the valve core 413 is arranged between the bracket cover 411 and the drain outlet 45, and the valve core 413 is connected to the bracket. There is a certain movable gap between the covers 411, and a spring 414 extending radially along the cylinder 200 and in a compressed state is provided in the movable gap, and the two ends of the spring 414 are in conflict with the bracket cover 411 and the valve core 413 respectively. Preferably, the end of the spring 414 is in contact with the center of the spool 413 to avoid deviation when the elastic force acts on the spool 413 , causing the spool 413 to fail to completely close the drain port 45 . Further preferably, the outer peripheral sidewall of the bracket cover 411 is at least partially hollowed out, so that the movable gap communicates with the inside of the drum 200 through the hollowed out portion.

In the present embodiment, the bracket cover 411 is a bowl-shaped structure that is upside down on 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 the bracket cover 411 and the drum are surrounded. A drain chamber 415 is formed, and the drain port 45 communicates with the drain chamber 415 . A plurality of hollow parts 418 are arranged on the side wall of the bowl-shaped support cover 411 , and each hollow part 418 communicates the drainage chamber 415 with the inside of the drum 200 . Preferably, the drain port 45 is arranged coaxially with the bowl-shaped support cover 411 . The radial width of the inner wall of the drainage chamber 415 gradually narrows from bottom to top. The outer periphery of the valve core 413 is covered with a sealing ring 412 made of elastically deformable materials such as rubber. limit contact, 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 core 413 is in the shape of a disc arranged horizontally, and the outer circumference of the valve core 413 is spaced from the inner wall of the bowl-shaped support cover 411 by a certain gap. The center of the bowl-shaped bracket cover 411 is provided with a coaxial columnar limiting rib 417 extending downward from the bracket cover 411, and the center of the disc-shaped valve core 413 is provided with an upwardly extending sleeve 416. The limiting rib 417 corresponds to Inserted into the sleeve 416; and the axial extension heights of the limiting rib 417 and the sleeve 416 are both smaller than the height of the bowl-shaped support cover 411, so as to reserve a movement gap for the valve core 413 to move up and down. The spring 414 is sheathed on the limiting rib 417 and the outer periphery of the sleeve 416 , the upper end of the spring 414 is limited and interfered with the bracket cover 411 , and the lower end of the spring 414 is limited and interfered with the disc-shaped valve core 413 . The lower side of the spool 413 is provided with a limiting slot for correspondingly inserting the retractable end of the push rod 44 . Preferably, the lower side of the disc-shaped valve core 413 is provided with a coaxially arranged, downwardly protruding limiting block, the limiting block is made of elastically deformable rubber and other materials, and the lower side of the limiting block is provided with a The telescoping end of the ejector rod corresponds to the limit slot for insertion. Further preferably, a limit groove protruding from the outside is provided on the outer periphery of the drain port 45, and the outer diameter of the sealing ring 412 is equal to or slightly smaller than the inner diameter of the limit groove, so that the valve core 413 is connected to the side wall of the drum 200 by the action of the spring. When conflicting, the outer circumference of the sealing ring 412 and the inner circumference of the limiting groove are limited by each other so that the spool 413 is correspondingly sealed to the drain port 45 .

In this embodiment, the drainage structure includes a push rod 44 that can expand and move radially along the drum 200, and the push rod 44 and the drain port 45 are arranged in the same rotating section of the drum 200, so that the telescopic end of the push rod 44 can extend correspondingly. Into the drain port 45, and open the spool 413. Preferably, when the drum rotates to a fixed position, the ejector rod and the drain port are on the same extension line, and the ejector rod is driven to move radially along the drum from outside to inside to correspondingly push open the valve core 413 at the drain port 45 . Further preferably, when the drum 200 rotates to a fixed position, the drain port 45 is located at the lowest point of the drum 200, so that all the washing water contained in the drum 200 can be drained out smoothly.

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

In this embodiment, the drainage structure further includes a sleeve-shaped housing 46, which is mounted on the outer side of the outer cylinder 800 along the radial direction of the drum 200; One end of the sleeve-shaped housing 46 is sealed and provided with an opening for the telescopic end of the push rod 44 to pass through, and this end of the sleeve-shaped housing 46 is fixedly connected with the outer cylinder 800, so that Under the limit action of the body, the ejector rod can only produce telescopic movement along the radial direction of the drum. The other end of the sleeve-shaped housing 46 is provided with a mounting plate 47 for sealing the opening, and the drive motor 41 is fixedly installed on the side of the mounting plate 47 away from the sleeve-shaped housing 46, and the rotating shaft of the drive motor 41 is arranged parallel to the axis of the cylinder 200 . Preferably, the sleeve-shaped housing 46 is also provided with a spring 49 sleeved on the outer periphery of the push rod 45. One end of the spring 49 is connected to the sealing end of the sleeve-shaped housing 46 with the drive motor, and the other end is connected to the push rod 45. The spring 49 is always in a compressed state, and the push rod 44 has a tendency to pop up toward the inner direction of the drum by the spring force, so as to control the push rod to pop up in time after the eccentric wheel rotates.

In this embodiment, a disc-shaped eccentric wheel 42 is installed at the rotating shaft of the drive motor 41, the disc-shaped eccentric wheel 42 is parallel to the axis of the push rod 44, and the center of the disc-shaped eccentric wheel 42 is aligned with the rotating shaft of the drive motor 41. Coaxial is fixed, and the periphery of disc-shaped eccentric wheel 42 is provided with eccentric shaft, and the axis of eccentric shaft is perpendicular to eccentric wheel 42. The extension direction of the connecting rod 43 is perpendicular to the axis of the eccentric shaft, and the first end of the connecting rod 43 is provided with the first connecting hole to be hinged with the eccentric shaft; One end in the cylindrical housing is hinged. Preferably, the first connection hole provided at the first end of the connecting rod 43 is a long hole extending axially along the connecting rod 43, and the extension length of the long hole is greater than the diameter of the eccentric shaft, so as to provide a movable margin for the connecting rod and lift the crank. The smooth operation of the linkage mechanism. Preferably, the mounting plate 47 is provided with a bearing seat 410 for the push rod 44 to pass through and be installed. The lower end of the push rod 44 passes through the mounting plate 47 correspondingly and is hinged with the second end of the connecting rod 43 so that The ejector rod is fixedly installed on the outer cylinder under the action of the bearing seat, and the ejector rod can only produce telescopic movement along the axis direction of the drum under the action of the bearing seat.

In this embodiment, the sleeve-shaped housing 46 is provided with a dynamic sealing structure 419 on the inner side of the outer cylinder, through which the push rod 44 passes. The dynamic sealing structure 419 seals the side of the sleeve-shaped housing 46 facing the outer cylinder, and The push rod can pass through axially and telescopically, so as to realize the isolation between the inside of the housing and the outer cylinder, and prevent the water in the outer cylinder from flowing into the housing. Preferably, the dynamic sealing structure 419 is a ring capable of producing radial expansion and contraction deformation, the inner circumference of the ring is in sealing connection with the outer wall of the push rod 44 , and the outer circumference of the ring is in sealing connection with the casing.

In this embodiment, a bellows 48 is provided inside the sleeve-shaped housing 46, and the two ends of the bellows 48 are respectively fixed to the mounting plate 47 and the ejector rod 44, so as to separate the inside of the sleeve-shaped housing into two independent inner and outer parts. layer; ejector rod 44 is set in the bellows 48, spring 49 is sleeved in the outer periphery of the ejector rod 44, the inner periphery of the bellows 48, the two ends of the spring 49 are connected with the mounting plate 47 and the ejector rod 44 respectively, the upper end of the spring 49 and the ejector rod 44 is fixed with bellows 48 joints.

In this embodiment, the outer cylinder 800 is provided on the through hole for the push rod 44 to pass through, and the upper end of the sleeve-shaped housing 46 is correspondingly installed at the through hole of the outer cylinder 800, and the upper end of the sleeve-shaped housing 46 is connected to the through hole. The periphery of the hole is sealed and connected to correspond to the sealed through hole. By arranging the bellows inside the shell, the inside of the shell is divided into two independent parts, so as to prevent washing water from flowing into the bellows and affecting the telescopic movement of the push rod.

Embodiment two

This embodiment is based on the first embodiment above, and also has the following distinguishing technical features: as shown in Figures 1 to 4, in order to allow the drum to rotate to a fixed position accurately, a positioning structure 500 is also provided on the drum washing machine to limit the drum 200. Rotate to a fixed position, especially keep the drum 200 stopped after rotating to a fixed position.

In this embodiment, the outer circumference of the drum 200 is provided with a positioning groove 55 sunken in the cylinder and a positioning rod 54 that can move radially and telescopically along the drum 200. The positioning rod 54 and the positioning groove 55 are arranged in the same rotating section of the drum 200 to The telescopic end of the positioning rod 54 can extend into the positioning groove 55 correspondingly. Preferably, when the positioning rod 54 is inserted into the positioning slot 55 , the drum 200 rotates to a fixed position, and the drain port 45 is at the lowest position of the drum 200 .

Through the above arrangement, when the non-porous drum of the top-loading drum washing machine stops rotating, it is stopped to a fixed position by the positioning structure, realizing the positioning of the non-porous drum and keeping the non-porous drum stationary at the fixed position.

In this embodiment, the positioning grooves 55 and the drainage ports 45 are located in different rotational sections of the drum 200, so that the drainage structures 400 and the positioning structures 500 are alternately arranged. Preferably, the positioning rod 54 is connected with the rotating shaft of the drive motor 51 through the crank linkage mechanism, so as to drive the positioning rod 54 to produce a telescopic displacement along the radial direction of the drum 200 through the crank linkage mechanism during the rotation of the driving motor 51 rotating shaft . Preferably, the crank-link mechanism includes an eccentric wheel 52, the center of the eccentric wheel 52 is coaxially fixed with the rotating shaft of the drive motor 51, the outer circumference is hinged with one end of the connecting rod 53, and the other end of the connecting rod 53 is connected with the positioning rod 54. hinged.

In this embodiment, during the deceleration and braking process of the drum, or during the low-speed rotation process, the positioning rod 54 is stretched out and contacts the outer wall of the drum in a limited position, until the drum rotates to a fixed position, the positioning rod 54 extends into the positioning groove 55 , to realize the positioning of the roller. 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 the locking of the drum, so as to avoid the rigid collision between the positioning rod 54 and the drum 200 and cause the positioning rod 54 to break the occurrence of the situation.

In this embodiment, the positioning rod 54 is installed 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 extends into the outer side of the drum 200 correspondingly. In the provided positioning groove 55, the positioning rod can only produce axial telescopic displacement due to the position-limiting action of the sleeve-shaped housing. In this embodiment, the positioning rod 54 and the positioning groove 55 are correspondingly arranged in the same rotation path section of the drum 200 , so that the positioning rod 54 can be inserted into the positioning groove 55 correspondingly.

In this embodiment, the positioning groove 55 and the drain port 45 are staggered at a certain angle relative to the center of the drum 200, and the positioning rod 54 and the ejector rod 44 are staggered at the same angle relative to the center of the drum, so that the positioning rod 54 is inserted into the positioning groove 55 and the ejector rod 44 is correspondingly inserted. The drain port 45 can be inserted at the same time to push away the valve core 413 .

In this embodiment, the positioning structure 500 further includes a sleeve-shaped housing 56, which is mounted on the outside of the outer cylinder 800 along the radial direction of the drum 200; the positioning rod 54 is coaxially installed in the sleeve-shaped housing 56 Inside, one end of the sleeve-shaped housing 56 is sealed and provided with an opening for the telescopic end of the positioning rod 54 to pass through, and this end of the sleeve-shaped housing 56 is fixedly connected with the outer cylinder 800; The other end of 56 is provided with the mounting plate 57 of sealing opening, and driving motor 51 is fixedly installed on the side of mounting plate 57 away from sleeve-shaped housing 56, and the rotating shaft of driving motor 51 is arranged parallel to the axis of cylinder 200. Preferably, the sleeve-shaped housing 56 is also provided with a spring 59 sleeved on the outer periphery of the positioning rod 54, one end of the spring 59 is connected with the sealing end of the sleeve-shaped housing 51 with the driving motor 51, and the other end is connected with the positioning rod. 54 are connected; the spring 59 is always in a compressed state, and the positioning rod has a tendency to pop up toward the inner direction of the drum by the elastic force of the spring, so as to control the ejector rod to pop up in time after the eccentric wheel rotates.

In this embodiment, a disc-shaped eccentric wheel 52 is installed at the rotating shaft of the driving motor 51, the disc-shaped eccentric wheel 52 is parallel to the axis of the positioning rod 54, and the center of the disc-shaped eccentric wheel 52 is aligned with the rotating shaft of the driving motor 51. Coaxially fixed, the outer periphery of the disc-shaped eccentric wheel 52 is provided with an eccentric shaft, and the axis of the eccentric shaft is perpendicular to the eccentric wheel 52. The extension direction of the connecting rod 53 is perpendicular to the axis of the eccentric shaft, and the first end of the connecting rod 53 is provided with the first connecting hole to be hinged with the eccentric shaft; One end inside the cylindrical case 56 is hinged. Preferably, the first connection hole provided at the first end of the connecting rod 53 is a long hole extending axially along the connecting rod 53, and the extension length of the long hole is greater than the diameter of the eccentric shaft, so as to provide a movable margin for the connecting rod and lift the crank. The smooth operation of the linkage mechanism. Preferably, the mounting plate 57 is provided with a bearing seat 510 through which the positioning rod 54 passes and is installed. The lower end of the positioning rod 54 passes through the mounting plate 510 correspondingly and is hinged to the second end of the connecting rod 53 .

In this embodiment, the sleeve-shaped housing 56 is provided with a dynamic sealing structure 519 facing the inner side of the outer cylinder, through which the positioning rod 54 passes. The dynamic sealing structure 519 seals the side of the sleeve-shaped housing 56 facing the outer cylinder, and The push rod can pass through axially and telescopically, so as to realize the isolation between the inside of the housing and the outer cylinder, and prevent the water in the outer cylinder from flowing into the housing. Preferably, the dynamic sealing structure 519 is a ring capable of radial expansion and contraction deformation, the inner circumference of the ring is in sealing connection with the outer wall of the positioning rod 54 , and the outer circumference of the ring is in sealing connection with the casing 56 .

In this embodiment, a bellows 58 is provided inside the sleeve-shaped housing 56, and the two ends of the bellows 58 are respectively fixed with the mounting plate 57 and the positioning rod 54; the positioning rod 54 is set in the bellows 58, and the spring 59 is set in the Positioning rod 54 outer circumference, bellows 58 inner circumferences, the two ends of spring 59 are connected with mounting plate 57 and positioning rod 54 respectively, and spring 59 upper end and positioning rod 54 are fixed with bellows 58 joints.

In this embodiment, the outer cylinder 800 is provided on the through hole for the positioning rod 54 to pass through. The periphery of the hole is sealed and connected to correspond to the sealed through hole. By arranging the bellows inside the shell, the inside of the shell is divided into two independent parts, so as to prevent washing water from flowing into the bellows and affecting the telescopic movement of the positioning rod.

Embodiment Three

As shown in Figures 8 to 10, this embodiment introduces a water inlet structure 900 of a top-loading drum washing machine. There is a clothes delivery port 3, and the drum 200 is provided with a door cover 300 that can be turned over to open and close the clothes delivery port; the two ends of the drum 200 are sealed, and the center of the sealing end 2 is connected to the housing 100 through the rotating shaft 11 so that it can rotate relatively. The rotating shaft 11 of at least one end is made of hollow sleeve, and hollow part constitutes flow channel 90 and is communicated with the water inlet pipe of washing machine.

By arranging the above-mentioned water inlet structure at the central rotating shaft of the drum, the use function of the top-loading washing machine to feed water into the non-porous drum is realized, so that the non-porous drum can smoothly enter water.

In this embodiment, the center of the sealing end 2 of the drum 200 is provided with an inwardly protruding water inlet chamber 99, and the penetrating end of the rotating shaft 11 extends into the water inlet chamber 99, and the flow channel 90 formed by the hollow part of the rotating shaft 11 is connected to the water inlet chamber. 99 are connected; the water inlet chamber 99 is provided with at least one water outlet 98, and the water outlet connects the water inlet chamber 99 with the inside of the drum 200.

In this embodiment, the center of the sealing end 2 of the drum 200 is provided with a bowl-shaped water inlet cover 91 installed on the inner wall of the drum, and the water inlet cover 91 and the wall of the drum 200 jointly form a water inlet chamber 99; At least one hollow portion 98 is provided on the end cover 91 to connect the water inlet chamber 99 with the inside of the drum 200 .

By arranging the water inlet end cover on the drum of the washing machine, the water inlet pipe is connected with the inside of the drum through a plurality of water outlets facing different directions, so as to avoid the single water inlet of the water inlet pipe from being blocked, resulting in poor water inlet of the washing machine. At the same time, a water inlet cover is arranged in the center of the sealed end of the non-porous drum, so that the water inlet flow is blocked by the water inlet end cover to generate divergent splashing, thereby increasing the coverage area of the water inlet flow and improving the wetting effect of the clothes . At the same time, a water inlet chamber enclosed by the water inlet end cover and the inner wall of the drum is provided inside the drum to buffer the water inlet flow and improve the smoothness of water inlet.

In this embodiment, the water inlet end cover 91 is arranged coaxially with the rotating shaft 11, and a plurality of hollowed out parts 98 are arranged on the side wall of the bowl-shaped water inlet end cover 91; The open side of the cover 91 protrudes into the water inlet cavity 99 ; preferably, a circular hollow portion 98 coaxial with the rotating shaft 11 is provided on the bottom wall of the bowl-shaped water inlet end cover 91 .

In this embodiment, the outer cylinder 800 is provided on the outside of the drum 200, and the outer cylinder 800 is provided with a water passage chamber 96 for the shaft 11 to extend through. The water inlet pipe of the washing machine communicates with the water passage 96, so that the water inlet pipe communicates with the internal flow channel 90 of the rotating shaft 11 through the water chamber 96. By connecting the rotating shaft with the water inlet pipe of the washing machine through the water chamber, the rotating shaft and the stationary water inlet pipe are sealed and communicated to ensure the unimpeded flow of water.

In this embodiment, a sleeve-shaped bearing seat 92 is installed at the center of the outer cylinder 800. One end of the bearing seat 92 is fixed to the outer cylinder 800, and the other end is buckled and fixed with a bearing cover 93. The sleeve-shaped bearing cover 93 is installed There is a bearing 97 for assembling the rotating shaft 11 ; the center of the bearing cover 93 is provided with a groove open to one side of the rotating shaft 11 , and the groove forms a water passage chamber 96 .

In this embodiment, the opening of the groove is provided with a ring seal ring 94; the passing end of the rotating shaft 11 extends into the water chamber 96 from the opening of the groove, and the inner circumference of the sealing ring 94 is sealed and sealed with the outer circumference of the rotating shaft 11. The outer periphery of the ring 94 seals against the inner wall of the groove.

In this embodiment, an opening is provided on the opposite side of the groove. The bearing cover 93 is provided with a joint 95 that communicates with the inside of the water passage chamber 96 . The water inlet pipe of the washing machine communicates with the joint 95 .

In this embodiment, the outer cylinder 800 is set on the outside of the drum 200, and the upper part of the outer cylinder 800 is connected to the housing 100 through the suspension spring 82, and/or the lower part is connected to the housing 100 through the shock absorbing rod 83; Both ends of the outer cylinder 800 are sealed, and the center of the sealing end 2 is provided with a rotating shaft 11 formed by a sleeve. The rotating shaft 11 extends along the axis of the drum 200. The rotating shaft 11 is relatively rotatable through the bearing 97 and assembled on the outer cylinder 800. Above, the penetrating end of the rotating shaft 11 extends into the outer cylinder 800 and is fixed with the drum 200 , and the penetrating end of the rotating shaft 11 communicates with the water inlet pipe of the washing machine through the water cavity 96 .

Embodiment Four

As shown in Figures 11 to 16, this embodiment introduces a ventilation structure of a top-opening drum washing machine. The washing machine includes a drum 200 installed in a casing 100 without dehydration holes. The two ends of the drum 200 are sealed to Enclosed into a sealed container; the drum 200 is provided with a vent hole 60, and a vent valve 600 is installed at the vent hole 60, so that the inside and outside of the drum 200 are connected to each other through the vent valve 600, and the water flow is blocked. Through the ventilation holes connected to the outside on the drum, the inside of the drum without dehydration holes can exchange air with the outside world, so as to adjust the internal pressure of the drum and achieve the purpose of smooth water intake into the drum or smooth drainage outside.

As shown in FIG. 13 , in this embodiment, a two-way ventilation valve 603 is installed at the ventilation hole 60 , so that the gas inside or outside the drum 200 flows to the outside or inside of the drum through the ventilation valve 603 . In this embodiment, the ventilation holes are arranged at the sealing end of one side of the drum, and after the drum stops rotating to a fixed position, the ventilation holes are located above the center of the drum.

In this embodiment, the two-way ventilation valve 603 includes a valve plate 62 covering the air hole 60, the valve plate 62 is flat, and the valve plate 62 is provided with a slit 63.

In this embodiment, the ventilation valve 600 also includes a bracket 61 installed at the ventilation hole 60. The bracket 61 includes a disc shape covering the ventilation hole 60 and having a plurality of hollow parts 64. The inner peripheral phase of the bracket 61 is sealed and fixed; the side of the support 61 away from the drum 200 is covered with a valve plate 62, and the valve plate 62 is provided with a gap 63 that only allows gas to flow through.

In this embodiment, the bracket 61 includes two circles of annular support ribs arranged coaxially and with unequal diameters. The outer annular support rib and the inner annular support rib are connected through a plurality of radially extending connecting ribs. Each connecting rib Evenly arranged at equal intervals, the two ends of each connecting rib are respectively connected to the inner circumference of the outer ring support rib and the outer circumference of the inner ring support rib.

In this embodiment, the outer ring support ribs have a certain extension width in the axial direction, the side of the outer ring support ribs close to the inside of the drum is connected to the connecting ribs, and the side away from the drum 200 is covered with a 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 the pressure difference on both sides to close or open the rip 63 provided on the valve plate 62; preferably, the rip 63 on the valve plate 62 63 is in the shape of a "ten", and the center of the "ten" coincides with the center of the vent hole 60.

Embodiment five

As shown in Figures 17 to 20, the difference between this embodiment and the above-mentioned fourth embodiment is that two air holes 611, 612 are provided on the same sealing end 2 of the drum 200, and a first one-way air hole is respectively installed at the two air holes. Vent valve 601 and the second one-way vent valve 602 make the directions of the gas flowing through the two vent holes opposite to each other.

As shown in Fig. 18, in this embodiment, the first one-way ventilation valve 601 includes a valve piece 63 covering the first ventilation hole 611. There is a slit 62 on it; as shown in Figure 19, the second one-way ventilation valve 602 includes a valve piece 63 covering the second ventilation hole 612, the valve piece 63 is in the shape of a cone protruding into the drum 200, and the cone-shaped valve piece The breach 62 that is provided with on 63.

In this embodiment, a positioning structure 500 is also provided on the washing machine to control the drum 200 to stop at a fixed position when it stops rotating. When the drum 200 rotates to a fixed position, the first air hole 611 is on the upper side of the second air hole 612; preferably Yes, when the drum 200 rotates to a fixed position, the first air hole 611 is located on the upper side of the center of the drum 200, and the second air hole 612 is located on the lower side of the center of the drum 200; further preferably, when the drum 200 rotates to a fixed position, the first The ventilation hole 611 and the second ventilation hole 612 are respectively vertically above and below the center of the drum 200 . Preferably, the positioning structure 500 in this embodiment can adopt the positioning structure described in the second embodiment above, and can also adopt other technical solutions in the prior art that can realize the positioning of the roller.

In this embodiment, the valve plate 62 is made of an elastic material, so as to deform itself under the action of the pressure difference on both sides to close or open the rip 63 provided on the valve plate 62; preferably, the rip 63 on the valve plate 62 63 is in the shape of a "ten", and the center of the "ten" coincides with the center of the vent hole 60.

Embodiment six

As shown in Figures 11 to 20, this embodiment introduces an installation structure based on the breathable valve 600 described in the fourth or fifth embodiment above. The breathable valve 600 includes a valve plate 62 on which Only the gap 63 for gas to flow through; the valve plate 62 is assembled on the installation structure, and the installation structure includes a support 61 installed at the vent hole 60 of the drum 200, and the support 61 includes a plurality of hollow holes covering the vent hole 60. The disc-shaped main body at the top, the outer circumference of the disc-shaped bracket 61 is sealed and fixed with the inner circumference of the vent hole 60; the side of the bracket 61 away from the drum is covered with a valve plate 62, and the valve plate 62 is provided with a gap 63 that only allows gas to flow through . There is a certain distance between the valve plate 62 and the disc-shaped support 61 to reserve a movable space for the deformation of the valve plate 62 .

Through the above settings, the valve plate can be fixedly assembled on the air hole of the drum, realizing the fixed installation of the air-permeable valve plate; at the same time, due to the blocking effect of the bracket, the direct contact between the valve plate and the clothes and water flow in the drum is avoided, thereby preventing It prevents the valve plate from being directly damaged by impact.

In this embodiment, the bracket 61 includes two circles of annular support ribs arranged coaxially and with unequal diameters. The outer annular support rib and the inner annular support rib are connected through a plurality of radially extending connecting ribs. Each connecting rib Evenly arranged at equal intervals, the two ends of each connecting rib are respectively connected to the inner circumference of the outer ring support rib and the outer circumference of the inner ring support rib. Further preferably, the inner annular support rib is arranged closer to the inside of the drum relative to the outer annular support rib, so that the connecting rib extends inwardly.

In this embodiment, the outer ring support rib has a certain extension width in the axial direction, the side of the outer ring support rib close to the inside of the drum is connected to the connecting rib, and the side away from the drum is covered with a valve plate.

In this embodiment, the valve plate 62 is made of an elastic material, so as to deform itself under the action of the pressure difference on both sides to close or open the rip 63 provided on the valve plate 62; preferably, the rip 63 on the valve plate 62 63 is in the shape of a "ten", and the center of the "ten" coincides with the center of the vent hole 60.

In this embodiment, the valve plate 62 can be a two-way valve plate that is flat and can flow air in both directions; to the valve plate.

In this embodiment, the drum 200 is provided with a vent hole 60, and the bracket 61 is correspondingly covered and assembled in the vent hole 60, and the outer periphery 61 of the bracket is sealed and bonded to the inner wall of the vent hole 60; preferably, the outer ring of the bracket 61 supports The rib is correspondingly sealed and bonded to the inner wall of the vent hole 60; further preferably, the inner and outer sides of the outer ring support rib are respectively provided with outwardly bent flanges, and the flanges are correspondingly attached to the inner and outer sides of the drum 200, so that the bracket 61 Fastened on the drum 200.

Embodiment seven

As shown in Figures 21 to 23, this embodiment introduces a drum door cover structure of a top-opening drum washing machine. The washing machine includes a drum 200 installed in a housing 100 without a dehydration hole, and the side wall of the drum 200 1 is provided with a clothes delivery port 3, and the drum 200 is provided with a door cover 300 which can controlly open and close the clothes delivery port 3; one side of the door cover 300 is hinged with the drum 200 around the rotating shaft 31, and the opposite end is provided with a rotatable lock. The tongue 32 is used to lock or disengage the locking tongue 32 rotating around the axis from the drum 200 .

In this embodiment, the lock tongue 32 is mounted on the door cover 300 so as to be rotatable about a shaft, and the rotating shaft of the lock tongue 32 extends radially along the drum 200; at least part of the lock tongue 32 protrudes outside the door cover 300, A lock hook 320 protruding toward the inside of the drum 200 is provided on the top; a lock groove 33 for the lock hook 320 to be inserted into is provided on the outer wall of the drum 200 .

In this embodiment, the outer side of the drum 200 is provided with a lock groove 33, and one side of the lock groove 33 is provided with an opening for the lock tongue 32 to slide in. 32 correspondingly slides into the locking groove 33 and the two lock each other.

In this embodiment, the lock tongue 32 includes a sheet-like plate extending along the outside of the drum 200. The middle part of the sheet-like plate is provided with a downwardly protruding rotating shaft 37, and the rotating shaft 37 passes through the through hole provided on the door cover 300. The exit end is fixedly connected with the fixing part, and the outer circumference of the fixing part exceeds the through hole, so that the sheet-like deadbolt 32 can be installed on the door cover 300 rotatably around the rotating shaft 37 . Preferably, the thickness of the sheet-like plate that constitutes the lock tongue is gradually reduced towards the side where the lock groove slides in, so as to guide the lock tongue to slide into the lock groove and be locked; further preferably, the opening of the lock groove to be measured is The gradually narrowing bell mouth further improves the smoothness of the lock tongue sliding in.

In this embodiment, the upper side of the lock tongue 32 of the sheet-like plate is provided with a bar-shaped handle rib 36 protruding upward, and the handle rib 36 extends along the outer circumference of any section of the drum 200, so that the user can hold and twist the lock. Tongue32.

In this embodiment, one side of the sheet-like locking tongue 32 protrudes from the door cover 300 , and the protruding portion is provided with a rib protruding toward the inner side of the drum 200 , so that the protruding rib forms a locking hook 320 . Preferably, the side of the rib facing the rotating shaft is arc-shaped; the locking groove 33 provided on the drum 200 is in a corresponding arc-shape on the side close to the rotating shaft, so that the rib is correspondingly slid into the locking groove 33 and then close to the rotating shaft. The contact surface on the side is in contact with each other to improve the stability of the closure. Further preferably, the handle rib 36 extends along a radial direction passing through the center of the arc-shaped convex rib.

In this embodiment, the outside of the drum 200 is provided with a convex rib 34 protruding outward, and the side of the convex rib 34 away from the rotating shaft 37 forms a locking groove 33; The lower side of the tongue 32 is in limited contact; the side of the convex rib 34 away from the rotating shaft 37 is an arc surface corresponding to the locking hook 320, and the distance between the arc surface on the outside of the convex rib 34 and the center of the rotating shaft 37 Equal to the distance between the arc surface inside the lock hook 320 and the center of the rotating shaft 37, the convex rib 34 and the lock hook 320 are at least partially overlapped in the height direction, so that when the lock tongue 32 is rotated to contact with the convex rib 34, The two lock each other.

In this embodiment, there is also a pressing piece 35 extending along the outer circumference of the cylinder 200 on the outside of the drum 200. The pressing piece 35 is located on the side of the convex rib 34 away from the rotating shaft 37; fixed, the other side is above the convex rib 34 and separated by a certain gap, and the gap can be used for the sheet-like deadbolt 32 to stretch in; The sides are in contact with each other, so that the gap space between the pressing piece 35 and the convex rib 34 forms a locking groove 33. Further preferably, one end of the pressing piece 35 is bent toward the direction of the drum 200 to seal the connection, so that one end of the locking groove 33 formed by the gap between the pressing piece 35 and the convex rib 34 is sealed, and the other end is open.

In this embodiment, the drum 200 is provided with a mounting groove sunken inward, and the rotating shaft 37 passing through the door cover 300 is correspondingly arranged in the mounting groove; a sealing ring 360 is provided on the side of the mounting groove close to the clothes delivery port 3 to seal At least a part of the ring 360 protrudes from the outside of the drum 200 . After the door cover 300 is fastened to the clothes delivery port 3 , the sealing ring 360 is squeezed by the fastened door cover 300 to seal the fastened part.

In this embodiment, a plurality of lock tongues 32 are arranged on one side of the door cover, and a plurality of lock slots 33 are arranged on the corresponding side of the clothes input port 3 of the drum 200, and each lock tongue 32 corresponds to the lock slots 33 one by one. Set to increase the number of closing and locking electricity between the door cover and the drum, and improve the stability of the door cover assembly. In addition, the openings of the lock slots 33 for the corresponding lock tongues 32 to slide in are set towards the same side, so that the user can rotate the lock tongues to open the door cover.

Embodiment eight

As shown in Figures 11 and 12, a top-loading drum washing machine is introduced in this embodiment, which includes a drum 200 installed in the casing 100 without dehydration holes, and the side wall 1 of the drum 200 is provided with Clothes delivery port 3, the drum 200 is provided with a door cover 300 that can be controlled to open and close the clothing delivery port 3; the side wall 1 of the drum 200 is provided with a plurality of inwardly protruding lifting ribs 210, and the drum 200 faces the clothing delivery port 3 The opposite side of the drum 200 is provided with a drainage structure 400, and the center of gravity of the drum 200 is on the central axis.

Through the above arrangement, the center of gravity of the non-porous drum of the top-loading drum washing machine is on the axis, thereby avoiding the occurrence of deviation during the rotation of the drum.

In this embodiment, when the drum 200 is in a fixed position, the clothes delivery port 3 is at the top of the drum 200 , and the drainage 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 side wall 1 of the drum 200, wherein two lifting ribs 210 are respectively arranged on the left and right sides of the clothes delivery opening 3, and the other lifting rib 210 is arranged on the opposite side of the clothing delivery opening 3. side. Preferably, the lifting ribs 210 on the opposite side of the clothes insertion opening 3 are offset to the hinged side of the door cover 300 so that the center of gravity of the drum 200 is at the center.

In this embodiment, each lifting rib 210 extends along the cylinder wall construction line of the drum 200 respectively.

In this embodiment, the drainage structure 400 includes a drainage outlet 45 provided on the side wall of the drum, and the center of the drainage outlet 45 is arranged opposite to the center of the door cover 300 relative to the 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 at a fixed position when it stops rotating. The positioning structure 500 includes a positioning groove 55 arranged on the side wall 1 of the drum 200, and the positioning groove 55 is arranged on the side where the lifting rib 210 on the opposite side of the clothes delivery port 3 is away from the drain port 45, so that the center of gravity of the drum 200 at the center. Further preferably, the drainage structure 400 and the center of the door cover 300 are located in the same radial direction of the drum 200 .

Embodiment nine

As shown in Figures 24 to 25, a top-loading drum washing machine is introduced in this embodiment, which includes a non-porous drum 200 installed in the casing 100 without dehydration holes, and a non-porous drum 200 on the side wall There is a clothes delivery port 3, and the drum 200 is provided with a door body 300 that can be turned over to open and close the clothes delivery port; in this embodiment, an opening 120 is provided on the top of the housing 100, and an upward turning The door cover 110 is snapped to cover the opening 120 correspondingly. The outer cylinder 800 is set on the outside of the drum 200, and the outer cylinder 800 is provided with an electromagnetic heating module 810 to heat the inside of the outer cylinder 800 and transfer the heating heat to the washing water contained in the drum 200.

By arranging the above-mentioned electromagnetic heating module on the outer cylinder, the drum inside the outer drum and the washing water inside the drum are heated by electromagnetic, and then the purpose of adjusting the temperature of the washing water in the drum of the washing machine is achieved.

In this embodiment, at least part of the roller 200 is made of metal material, so as to generate heat due to the eddy current effect generated by the magnetic field generated by the electromagnetic heating module. The outer cylinder 800 is made of plastic material that does not excite eddy current effect in the magnetic field. Preferably, the side walls of the drum 200 are all made of metal, and the electromagnetic heating module 810 is correspondingly arranged on the side walls of the outer cylinder 800 .

In this embodiment, due to the action of gravity, the incoming water flowing into the drum will converge downwards at the bottom of the drum 200. Therefore, in order to improve the heating efficiency, it is preferable to set the electromagnetic heating module 810 at the lowest point of the outer cylinder 800 so as to prevent the water from converging on the drum. 200 The washing water at the bottom is directly heated to adjust the temperature of the washing water in the drum.

In this embodiment, in order to further improve the heating efficiency, the following settings can also be made: a plurality of electromagnetic heating modules 810 are arranged on the outer cylinder 800; preferably, each electromagnetic heating module 810 is arranged on the side of the outer cylinder 800 at intervals of a certain angle on the wall. By arranging a plurality of electromagnetic heating modules on the outer cylinder, each heating module can heat the drum during the rotation of the drum.

In this embodiment, the electromagnetic heating module 810 includes a plastic shell, and the interior of the plastic shell is hollow to form an installation cavity with one side open, and an electromagnetic generator is installed in the installation cavity; the plastic shell is fixedly installed on the outside of the outer cylinder, and the plastic The opening of the installation cavity of the shell is set facing the inside of the outer cylinder, so that the electromagnetic field generated by the electromagnetic generator in the installation cavity is transmitted to the inside of the outer cylinder through the opening, thereby ensuring that the part of the roller made of metal is in the magnetic field, so that the metal roller is in the magnetic field. Heat is generated by the vortex effect in the drum to heat the washing water in the drum. In this embodiment, the electromagnetic generator is provided with a connecting terminal passing through the plastic casing, and the connecting terminal passes through the bottom of the plastic casing and is connected with the power supply line of the washing machine to supply power to the electromagnetic generator.

In this embodiment, in order to prevent the magnetic field generated by the electromagnetic generator from being transmitted to the outside of the outer cylinder, a shielding device may also be provided on the plastic shell to isolate the magnetic field from being transmitted to the outside of the outer cylinder.

The above descriptions are only preferred embodiments of the present invention, and do not limit the present invention in any form. Although the present invention has been disclosed as above with preferred embodiments, it is not intended to limit the present invention. Anyone familiar with the technology of this patent Without departing from the scope of the technical solution of the present invention, personnel can use the technical content of the above prompts to make some changes or modify them into equivalent embodiments with equivalent changes. Technical Essence Any simple modifications, equivalent changes and modifications made to the above embodiments still fall within the scope of the solutions of the present invention.

Claims (9)

1. A drum washing machine includes a non-porous drum installed in a housing and having no dehydration holes; the method is characterized in that:

the outer cylinder is sleeved outside the roller, and an electromagnetic heating module is arranged on the outer cylinder so as to heat the inside of the outer cylinder and transfer heating heat to washing water contained in the roller;

at least part of the roller is made of metal materials, so that the roller is subjected to a magnetic field generated by the electromagnetic heating module to generate eddy current effect so as to generate heat; the outer cylinder is made of plastic materials which do not excite eddy current effect in a magnetic field; the electromagnetic heating module is arranged at the lowest part of the outer cylinder;

A water outlet is arranged on the roller, and a valve core corresponding to the closed opening is arranged at the water outlet; a drainage structure is also arranged in the shell so as to jack the valve core and open the water outlet after the roller rotates to a fixed position;

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 drainage structure comprises a push rod which can stretch and move along the radial direction of the roller, and the push rod and the water outlet are arranged in the same rotary section of the roller, so that the stretching end of the push rod can correspondingly stretch into the water outlet and push up the valve core; when the roller rotates to a 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 roller from outside to inside so as to correspondingly eject the valve core at the water outlet;

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;

a dynamic sealing structure for the ejector rod to pass through is arranged on one side of the sleeve-shaped shell facing the outer cylinder, and the dynamic sealing structure seals the side of the sleeve-shaped shell facing the outer cylinder and can allow the ejector rod to axially stretch and pass through;

a corrugated pipe is arranged in the sleeve-shaped shell, and two ends of the corrugated pipe are respectively fixed with the mounting plate and the ejector rod so as to divide the sleeve-shaped shell into an inner layer and an outer layer which are mutually independent; the ejector rod is sleeved in the corrugated pipe, the spring is sleeved on the outer periphery of the ejector rod and the inner periphery of the corrugated pipe, two ends of the spring are respectively connected with the mounting plate and the ejector rod, and the upper end of the spring is fixed with the joint of the ejector rod and the corrugated pipe;

a positioning structure is also arranged on the drum washing machine to limit the rotation of the drum to a fixed position and then stop.

2. The drum type washing machine as claimed in claim 1, wherein the electromagnetic heating module is provided on a sidewall of the outer tub, and the sidewall of the drum is entirely formed of a metal material.

3. A drum washing machine as claimed in claim 1, wherein the outer tub is provided with at least one electromagnetic heating module.

4. A drum washing machine as claimed in any one of claims 1 to 3, wherein the electromagnetic heating module comprises a plastic housing, a mounting cavity with one side open is formed by the plastic housing, and an electromagnetic generator is mounted in the mounting cavity; the plastic housing is fixedly arranged on the outer side of the outer cylinder, and the installation cavity of the plastic housing is opened towards the inner part of the outer cylinder.

5. A drum washing machine as claimed in claim 4, wherein a shielding means is provided at an outer side of the plastic housing to isolate transmission of the magnetic field to an outside of the tub.

6. A drum type washing machine as claimed in any one of claims 1 to 3, wherein the two ends of the non-porous drum are sealed, the center of the sealed end is rotatably connected to the housing via a rotation shaft, the rotation shaft of at least one end is formed of a hollow sleeve, and the hollow portion is formed of a flow passage and is connected to a water inlet pipe of the washing machine.

7. The drum type washing machine as claimed in claim 6, wherein the sealing end of the non-porous drum is provided with an inwardly protruded water inlet chamber at the center thereof, and the shaft penetrating end is protruded into the water inlet chamber; at least one water outlet is arranged on the water inlet cavity, and the water outlet communicates the water inlet cavity with the pore-free roller.

8. The drum type washing machine as claimed in claim 6, wherein the outer drum is provided with an outer drum, and a water passing cavity into which the penetrating end of the rotating shaft is extended is formed in the outer drum, and the water inlet pipe is communicated with the water passing cavity, so that the water inlet pipe is communicated with the flow passage inside the rotating shaft through the water cavity.

9. The drum type washing machine as claimed in claim 6, wherein a sleeve-shaped bearing housing is installed at the center of the outer tub, one end of the bearing housing is fixed with the outer tub, the other end is fastened with a bearing cap, and a bearing for assembling the rotating shaft is installed in the sleeve-shaped bearing cap; the center of the bearing cover is provided with a groove which is arranged towards one side of the rotating shaft and is open, and the groove forms a water passing cavity.

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