WO2021032086A1

WO2021032086A1 - Washing machine

Info

Publication number: WO2021032086A1
Application number: PCT/CN2020/109804
Authority: WO
Inventors: 赵志强; 许升; 吕佩师
Original assignee: 青岛海尔滚筒洗衣机有限公司; 海尔智家股份有限公司
Priority date: 2019-08-19
Filing date: 2020-08-18
Publication date: 2021-02-25
Also published as: CN112391786A

Abstract

A washing machine, comprising an outer drum (2), an inner drum (3) being sleeved inside the outer drum (2). The inner drum opening (35) is provided protruding out from the outer drum opening (25). The configuration enables an inner drum cover (30) that is provided corresponding to the inner drum opening (35) to be free from interference by the outer drum (25) during the process of opening and closing, while allowing the inner drum opening (35) to be closer to a washing machine housing (1), so as to reduce interference during the process of loading and unloading clothes, thereby allowing the inner drum opening (35) to be enlarged as much as possible to increase the width of the clothes input opening of the washing machine and to improve the aesthetic degree of the washing machine.

Description

A washing machine

Technical field

The invention belongs to the technical field of laundry treatment equipment, and relates to a washing machine, in particular to a washing machine having a non-porous inner tub with a dehydration hole closed when a washing program is executed.

Background technique

The mouth of the inner tub of the conventional drum washing machine is housed inside the outer tub and does not protrude from the mouth of the outer tub. This will make the mouth of the inner cylinder limited by the size of the outer cylinder and need to be smaller than the mouth of the outer cylinder, making the inner cylinder mouth smaller when the user opens the door, which affects the washing capacity of the washing machine intuitively for the user and reduces the appearance of the washing machine .

At the same time, in order to avoid the occurrence of problems such as the clothes being clamped by the door and excessive wear and tear on the door during washing, a structure can be provided at the mouth of the inner cylinder to block the clothes. However, because the mouth of the inner cylinder is received inside the outer cylinder, This will cause inconvenience to users when disassembling the blocking structure and picking and placing clothes.

In view of this, this application is hereby submitted.

Summary of the invention

The object of the present invention is to provide a washing machine to achieve the purpose of enlarging the opening of the inner tub; another object of the present invention is to provide a washing machine to achieve the purpose of significantly improving the convenience of taking and placing clothes in the washing machine.

To achieve the above-mentioned purpose of the invention, the specific technical solutions adopted are as follows:

A washing machine includes: an outer tube, the outer tube is sleeved with an inner tube; the tube mouth of the inner tube protrudes from the tube mouth of the outer tube.

Further, the inner cylinder and the outer cylinder are arranged coaxially, the inner cylinder mouth and the outer cylinder mouth are on the same side, and the protrusion height of the inner cylinder mouth relative to the outer cylinder mouth is H1.

Further, an inner cylinder cover is provided at the mouth of the inner cylinder, and the inner cylinder cover can be opened and closed to close the mouth of the inner cylinder, and the inner cylinder cover is arranged protruding from the mouth of the outer cylinder.

Further, the inner cylinder cover protrudes from the inner cylinder mouth, the inner cylinder cover covers the inner cylinder mouth correspondingly from the outside, and the protrusion height of the inner cylinder cover away from the inner cylinder mouth relative to the outer cylinder mouth is H2.

Further, it also includes a housing, the outer cylinder is installed in the housing, the housing is provided with an opening opposite to the mouth of the outer cylinder, and the housing is provided with a door corresponding to the opening and closing opening, which protrudes from the outside of the outer cylinder mouth. There is a gap between the mouth of the cylinder and the door that closes the opening of the shell.

Further, there is a gap between the inner cylinder cover buckled at the mouth of the inner cylinder and the door closing the opening of the casing.

Further, the radial dimension of the inner cylinder opening is smaller than the radial dimension of the housing opening; preferably, the outer circumferential radial dimension of the inner cylinder cover is smaller than the radial dimension of the housing opening.

Further, both the outer cylinder and the inner cylinder are arranged horizontally, the same ends of the outer cylinder and the inner cylinder are respectively provided with openings, and the openings are respectively provided with a circle of folded edges that are horizontally bent to the outside of the cylinder, and the folded edges at the openings are respectively formed The mouth of the outer cylinder and the mouth of the inner cylinder; preferably, the mouth of the outer cylinder is connected to the opening of the shell through a door seal that can be elastically deformed by itself, and is used to form a sealed channel for taking and placing clothes.

Further, the inner tub is a water container formed during the washing process of the washing machine; preferably, the inner tub is provided with a hole, and a centrifugal valve is installed at the hole to be opened by centrifugal force after the rotation speed of the inner tub reaches a set value.

Further, the front end of the inner cylinder is provided with an inner cylinder mouth, and the rear end is provided with a rotating shaft connected with the motor. The hollow inside of the rotating shaft forms a flow channel connecting the inside and outside of the inner cylinder, and the end of the flow channel passing through the inner cylinder is connected with the water supply structure of the washing machine.

Compared with the prior art, the laundry treatment device of the present invention has the following beneficial effects:

By setting the inner cylinder mouth protruding from the outer cylinder mouth, the inner cylinder cover corresponding to the inner cylinder mouth is not interfered by the outer cylinder mouth during the opening and closing process; at the same time, the inner cylinder mouth is protruding from the outer cylinder mouth. Making the mouth of the inner tube closer to the casing of the washing machine reduces interference during the loading and unloading of clothes, and the mouth of the inner tube can be enlarged as much as possible to increase the width of the clothes opening of the washing machine and improve the aesthetics of the washing machine.

At the same time, the invention has a simple structure and significant effects, and is suitable for popularization and use.

In order to make the design concept of the technical solution of the present invention clearer and facilitate further understanding of the beneficial effects brought about by it, some specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

Description of the drawings

The accompanying drawings are used as a part of the present invention to provide a further understanding of the present invention. The exemplary embodiments and descriptions of the present invention are used to explain the present invention, but do not constitute an improper limitation of the present invention. Obviously, the drawings in the following description are only some embodiments, and for those of ordinary skill in the art, other drawings can be obtained from these drawings without creative work. In the attached picture:

Figure 1 is a schematic cross-sectional structure diagram of the inner tub of the washing machine in different positions in the embodiment of the present invention;

FIG. 2 is a schematic diagram of an enlarged structure at D of FIG. 1 in an embodiment of the present invention;

Fig. 3 is a schematic diagram of a cross-sectional enlarged structure of a water intake structure in an embodiment of the present invention;

Figure 4 is a schematic diagram of an enlarged cross-sectional structure of a lifting rib in an embodiment of the present invention.

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

detailed description

In order to make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be described clearly and completely in conjunction with the accompanying drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention. , But not used to limit the scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the pointed device or element must have a specific orientation or a specific orientation. The structure and operation cannot therefore be understood as a limitation of the present invention.

In the description of the present invention, it should be noted that the terms "installed", "connected" and "connected" should be understood in a broad sense, unless otherwise clearly specified and limited. For example, they can be fixed or detachable. Connected or integrally connected; it can be mechanically or electrically connected; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meaning of the above-mentioned terms in the present invention can be understood in specific situations.

As shown in Figures 1 to 4, an embodiment of the present invention introduces a washing machine. The washing machine includes an outer tub 2 installed in a housing 1. The outer tub 2 is sheathed with an inner tub 3, and the inner tub mouth 35 is convex. Set out of the outer cylinder opening 25. By setting the inner cylinder mouth protruding from the outer cylinder mouth, the inner cylinder cover corresponding to the inner cylinder mouth is not interfered by the outer cylinder mouth during the opening and closing process; at the same time, the inner cylinder mouth is protruding from the outer cylinder mouth. Making the mouth of the inner tube closer to the casing of the washing machine reduces interference during the loading and unloading of clothes, and the mouth of the inner tube can be enlarged as much as possible to increase the width of the clothes opening of the washing machine and improve the aesthetics of the washing machine.

In the embodiment of the present invention, the outer cylinder 2 and the inner cylinder 3 are both horizontal and coaxially arranged. The outer cylinder 2 and the inner cylinder 3 are provided with an outer cylinder opening 25 and an inner cylinder opening 35 respectively at the same end, and the opposite ends are sealed. To form the outer cylinder bottom 26 and the inner cylinder bottom 36 respectively; the inner cylinder bottom 36 is connected with a coaxially arranged rotating shaft 41, and the other end of the rotating shaft 41 passes through the outer cylinder bottom 26 and is connected to the motor 4 to drive the rotation of the motor 4 The force is transmitted to the inner cylinder 3 through the rotating shaft 41, and then drives the inner cylinder 3 to rotate.

In the embodiment of the present invention, the outer cylinder 2 and the inner cylinder 3 are respectively provided with openings at the same end, and the openings are respectively provided with a circle of folded edges that are horizontally bent to the outside of the cylinder, and the flange extension ends at the openings respectively form the outer cylinder mouths 25 and the inner tube 35. In order to facilitate the forming of the outer cylinder mouth 25 and the inner cylinder mouth 35, the open ends of the outer cylinder 2 and the inner cylinder 3 are respectively composed of annular flanges, and the outer circumference of the annular flange corresponds to the inner side wall of the outer cylinder 2 or the inner cylinder 3, respectively Fixed, the inner circumference of the annular flange respectively constitutes an opening, and the flange is horizontally bent in a direction away from the tube, and the flange extension ends constitute the tube mouth.

In the embodiment of the present invention, the casing 1 of the washing machine is provided with an opening 11 opposite to the outer tube opening 25, and the casing 1 is provided with a door 10 corresponding to the opening and closing opening, which protrudes from the outer tube opening 25. There is a gap between the barrel opening 35 and the door 20 that closes the casing opening 11 to ensure that the inner tub 3 does not contact the washing machine casing 1 during the rotation and prevent the normal operation of the washing machine from being affected.

In the embodiment of the present invention, in order to ensure that the gap between the outer cylinder mouth 25 and the housing 1 does not leak, the following settings are generally made: the outer cylinder mouth 25 passes through a circle of the door seal 12 and the opening of the housing 1 that can be elastically deformed by itself. 11 is connected to form a sealed channel for clothes to be taken and placed. Therefore, the washing water in the outer tub does not flow out from the gap, and the sealing performance of the outer tub is ensured.

In the embodiment of the present invention, the protrusion height of the inner tube opening 35 relative to the outer tube opening 25 is H1 to ensure that the inner tube opening 35 is all protruding outside the outer tube 2, and then during the process of taking and placing clothes in the inner tube 3, The occurrence of interference with the mouth 25 of the outer cylinder is avoided.

In the embodiment of the present invention, an inner cylinder cover 30 is provided at the inner cylinder mouth 35. The inner cylinder cover 30 can be opened and closed to close the inner cylinder mouth 35. The inner cylinder cover 30 protrudes from the outer cylinder mouth 25 so that the inner cylinder cover The opening and closing processes of 30 are all performed outside the outer cylinder 2, which avoids the occurrence of mutual interference between the inner cylinder cover 30 and the outer cylinder mouth 25.

In the embodiment of the present invention, the inner cylinder cover 30 protrudes from the inner cylinder opening 35, the inner cylinder cover 30 covers the inner cylinder mouth 35 from the outside, and the inner cylinder cover 30 protrudes from the outer cylinder mouth 25 on the side away from the inner cylinder mouth 35. It is H2; preferably, the H2 is greater than H1; more preferably, H2 is greater than three times of H1, to further ensure that the inner cylinder cover 30 and the inner cylinder mouth 35 will not interfere with each other.

In the embodiment of the present invention, there is a gap between the inner cylinder cover 30 buckled at the inner cylinder mouth 35 and the door 10 closing the opening 11 of the casing 1, so that after the inner cylinder cover 30 is closed, the inner cylinder 3 is rotating. A gap distance is maintained between the inner tub cover 30 and the casing 1 to avoid contact between the inner tub 3 and the casing 1, which may affect the normal operation of the washing machine.

In the embodiment of the present invention, the radial size of the inner cylinder opening 35 is smaller than the radial size of the housing opening 11, and the outer circumferential radial size of the inner cylinder cover 30 is smaller than the radial size of the housing opening 11. Therefore, a certain distance gap is maintained between the inner cylinder mouth 35 and the housing opening 11, and between the inner cylinder cover 30 and the housing opening 11, so as to avoid the inner cylinder 3, the inner cylinder cover 30 and the housing during the rotation of the inner cylinder. 1 Contact, causing a situation that affects the normal operation of the washing machine.

In the embodiment of the present invention, the washing machine may be any existing washing machine, and in particular, it may be a no-clean washing machine whose inner tube forms a sealed water container during the washing process of the washing machine. The specific form is as follows:

As shown in Figures 1 to 4, the drum washing machine includes a casing 1, an outer tub 2 and an inner tub 3 are installed inside the casing 1, the casing 1 is provided with an opening, and a door 10 is installed at the opening. Specifically, the machine door 10 is installed on the casing 1, and the machine door 10 is turned outwards to open, and correspondingly turned to close.

As shown in FIGS. 1 and 4, in the embodiment of the present invention, a lifting rib 9 is provided on the side wall of the inner cylinder 3, and the lifting rib 9 protrudes from the inner surface of the side wall of the inner cylinder 3. An accommodating cavity is provided inside the lifting rib 9, and the wall of the accommodating cavity is provided with a first through hole communicating with the inner space of the inner cylinder 3 and a second through hole 93 communicating with the gap between the inner cylinder 3 and the outer cylinder 2. A control structure for controlling the opening and closing of the first through hole and/or the second through hole 93 is provided inside the containing cavity. There is no through hole on the wall surface of the inner cylinder 3 on the outer periphery of the lifting rib 9. Specifically, the first through holes are densely distributed on the side of the accommodating cavity close to the inside of the inner cylinder 3, and the second through holes 93 are provided on the side of the accommodating cavity close to the gap between the inner cylinder 3 and the outer cylinder 2. The number is small, and the control structure controls the opening and closing of the second through hole 93. The lifting ribs 9 include a plurality of evenly distributed around the axis of the inner cylinder 3, and a plurality of evenly distributed along the axial direction of the inner cylinder 3.

In the embodiment of the present invention, the lifting rib 9 includes a housing 90. The housing 90 is provided with first through holes on opposite sides along the direction in which the water flows. The housing 90 is hollow to form a containing cavity, and the bottom wall of the containing cavity is provided with The second through hole 93, the second through hole 93 is connected to the drainage device, and a controllable opening and closing control structure is installed in the accommodating cavity. The control structure opens the second through hole 93 during the dehydration process and when the inner cylinder 3 rotates at a high speed. The washing water in the inner tub 3 is discharged.

As shown in Figure 4, in the embodiment of the present invention, the control structure includes a valve plug 91, an elastic member 95 and a lever. The valve plug 91 is correspondingly installed at the second through hole 93 to close the second through hole 93, and the elastic member 95 supports the valve plug. 91 closes the second through hole 93 and can be elastically deformed in the axial direction of the second through hole 93. One end of the lever is hinged with the valve plug 91, and the opposite end is connected with a weight 92.

Specifically, the first through hole is in a normally open state, and the distance between the weight 92 and the lever fulcrum is relatively large, so as to facilitate driving the valve plug 91. The control structure includes a valve plug 91 that closes the second through hole 93 and a weight 92. The valve plug 91 can move up and down relative to the second through hole 93. One end of the weight 92 extends outward to form a lever. The lever is hinged with the valve plug 91. The up and down movement of the hammer 92 causes the lever to drive the valve plug 91 up and down around the fulcrum to automatically control the opening and closing of the second through hole 93. An elastic member 95 is provided on the valve plug 91. When the inner cylinder does not work or rotates at a low speed, The valve plug 91 closes the second through hole 93 under the action of the elastic member 95. When the inner cylinder 3 rotates at a high speed during dehydration, the weight 92 moves radially outward along the inner cylinder 3 under the action of centrifugal force, and the lever is connected to the weight 92 One end moves downward with the weight 92, and the other end of the lever moves upward, driving the valve plug 91 upward to open the second through hole 93, and the washing water in the inner cylinder 3 is discharged through the first through hole and the second through hole 93 , The outer cylinder 2 is fixed, the outer cylinder 2 is provided with a water collecting device 94 at a position relative to the second through hole 93, the water collecting device 94 is in communication with the drainage pipe, and the drainage pipe is provided with a drainage pump 8 and a water collecting device 94 The water in the inner cylinder 3 is collected and discharged under the action of the drain pump 8.

In the embodiment of the present invention, the valve plug 91 is a cylindrical structure with an axis coaxial with the second through hole 93. The valve plug 91 includes a closed section that closes the second through hole 93 and a connecting section with an outer diameter smaller than the closed section. The elastic member 95 supports On the step surface between the connecting section and the closed section, the lever is hinged with the end of the connecting section away from the closed section. The elastic member 95 is a cylindrical structure coaxial with the valve plug 91, the elastic member 95 is sleeved outside the closed section, and its first end is supported on the step surface between the connecting section and the closed section, and the opposite end is opposite. The support is fixed inside the containing cavity.

As shown in FIGS. 1 and 3, in the embodiment of the present invention, the drum washing machine includes a motor 4, the bottom of the inner tub 3 is drivingly connected to the motor 4 through a rotating shaft 41, and the inside of the rotating shaft 41 is hollow to form a water inlet channel 40. The water inlet channel 40 is connected with a water inlet device, and the inner cylinder 3 sends water. The water inlet device includes any one or a combination of a water inlet valve that automatically controls the water inlet of the inner cylinder 3, a detergent injection device, and a heating device.

In the embodiment of the present invention, one end of the rotating shaft 41 extends to the outside of the motor 4, and the rotating shaft 41 and the extended end are rotatably mounted on the communicating member 42 through a bearing. The communicating member 42 has a communicating passage that communicates with the water inlet passage 40 and The water inlet device, the communication channel and the water inlet valve are sequentially connected with the detergent injection device and the heating device.

In the embodiment of the present invention, the outer cylinder 2 is installed in the housing 1 through a shock-absorbing device. One end of the outer cylinder 2 is open and one end is closed. The inner cylinder 3 is sleeved inside the outer cylinder 2. The injection port 32 of the inner cylinder 3 and the outer cylinder 2 The opening direction of the rotating shaft 41 is the same. One end of the rotating shaft 41 passes through the inner tube 3, and the other end is rotatably supported on the bottom wall of the outer tube 2. The outer tube 2 supports the inner tube 3 and ensures the stability of the washing machine. The outer cylinder cap 20 is installed at the outer cylinder mouth 25 of the outer cylinder 2, and the inner cylinder cap 30 is installed at the inner cylinder mouth 35 of the inner cylinder 3. The outer cylinder cap 20 and the outer cylinder 2 are open and hermetically connected, and the inner cylinder cap 30 and The inner cylinder 3 and the inner cylinder mouth 35 are sealed and connected. The damping device includes a damping spring and a shock absorber. The damping spring is installed on the side wall of the top of the outer cylinder 2. One end of the damping spring is fixed on the housing 1, and the other end is hooked on the side wall of the outer top. Installed in the middle of the bottom side wall of the support base.

The above are only the 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 in preferred embodiments, it is not intended to limit the present invention. Any technology familiar with this patent Without departing from the scope of the technical solution of the present invention, the personnel can use the technical content suggested above to make slight changes or modification into equivalent embodiments with equivalent changes, but any content that does not depart from the technical solution of the present invention is based on the technology of the present invention Essentially, any simple modifications, equivalent changes and modifications made to the above embodiments still fall within the scope of the present invention.

Claims

A washing machine, comprising: an outer tube, the outer tube is sleeved with an inner tube; the feature is that the inner tube mouth is arranged protruding from the outer tube mouth.
The washing machine according to claim 1, wherein the inner tube and the outer tube are arranged coaxially, the inner tube opening and the outer tube opening are on the same side, and the protrusion height of the inner tube opening relative to the outer tube opening is H1.
The washing machine according to claim 2, characterized in that an inner cylinder cover is provided at the mouth of the inner cylinder, the inner cylinder cover can be opened and closed to close the mouth of the inner cylinder, and the inner cylinder cover protrudes from the mouth of the outer cylinder.
A washing machine according to claim 3, characterized in that the inner tube cover protrudes from the inner tube opening, the inner tube cover covers the inner tube opening from the outside, and the side of the inner tube cover away from the inner tube opening is convex relative to the outer tube opening. The exit height is H2.
A washing machine according to any one of claims 1 to 4, further comprising a housing, the outer cylinder is installed in the housing, the housing is provided with an opening opposite to the mouth of the outer cylinder, and the housing is provided with Corresponding to the door that opens and closes the opening, there is a gap between the opening of the inner tube that protrudes outside the opening of the outer tube and the door that closes the opening of the shell.
The washing machine according to claim 5, characterized in that there is a gap between the inner tube cover buckled at the mouth of the inner tube and the door closing the opening of the casing.
The washing machine according to claim 5, wherein the radial size of the mouth of the inner tub is smaller than the radial size of the opening of the casing;

Preferably, the radial dimension of the outer circumference of the inner cylinder cover is smaller than the radial dimension of the opening of the casing.
A washing machine according to any one of claims 1 to 7, characterized in that the outer tube and the inner tube are both horizontally arranged, the same end of the outer tube and the inner tube are respectively provided with openings, and the openings are respectively provided horizontally outward of the tube. A circle of folded edges is bent, and the extended ends of the folded edges at the opening respectively form the outer cylinder mouth and the inner cylinder mouth;

Preferably, the mouth of the outer cylinder is connected to the opening of the housing via a ring of door seals that can be elastically deformed by itself, so as to form a sealed channel for taking and placing clothes.
The washing machine according to any one of claims 1 to 8, wherein the inner tub is a water container formed when the washing machine performs a washing process;

Preferably, the inner cylinder is provided with a hole, and a centrifugal valve is installed at the hole to be opened by centrifugal force after the rotation speed of the inner cylinder reaches a set value.
A washing machine according to claim 9, characterized in that the front end of the inner tub is provided with an inner tub mouth, and the rear end is provided with a rotating shaft connected to the motor, and the hollow inside of the rotating shaft forms a flow passage connecting the inside and outside of the inner tub, and the flow passage passes through One end of the inner cylinder is connected with the water supply structure of the washing machine.