WO2022262598A1

WO2022262598A1 - Inner drum flange assembly and laundry machine

Info

Publication number: WO2022262598A1
Application number: PCT/CN2022/097075
Authority: WO
Inventors: 许升; 吕艳芬; 郝兴慧; 吴迪
Original assignee: 青岛海尔洗衣机有限公司; 海尔智家股份有限公司
Priority date: 2021-06-15
Filing date: 2022-06-06
Publication date: 2022-12-22
Also published as: JP2024520869A

Abstract

Disclosed in the present invention are an inner drum flange assembly and a laundry machine, which relate to the technical field of laundry machines. The inner drum flange assembly comprises a flange plate and a centrifugal water drainage device, wherein a mounting portion is provided on the flange plate, and the centrifugal water drainage device comprises a centrifugal slider mounted on the mounting portion and sliding relative to the flange plate under the action of a centrifugal force, a valve plug configured to be driven by the centrifugal slider to move relative to the flange plate, and an elastic member having a certain extension length in a sliding direction of the centrifugal slider and configured to apply a restoration force to the centrifugal slider in a direction opposite the direction in which the centrifugal slider slides under the action of the centrifugal force, a peripheral side of the elastic member being completely wrapped by the centrifugal slider and/or the mounting portion. The inner drum flange assembly of the present invention can be applied to a laundry machine, and the peripheral side of the elastic member is completely wrapped such that the elastic member can be protected from coming into contact with drainage water of the laundry machine, and the situation where the centrifugal water drainage device fails to seal the inner drum due to the failure of the elastic member caused by same rusting or hooking thread fragments is avoided.

Description

An inner barrel flange assembly and washing machine

technical field

The invention belongs to the technical field of washing machines, and in particular relates to an inner tub flange assembly and a washing machine.

Background technique

Most washing machines in the prior art include an inner tub and an outer tub connected to each other. When the washing machine is in operation, the outer tub holds washing water, and the inner tub holds laundry to be washed. The washing water can exist between the inner tub and the outer tub. As the working time of the washing machine increases, the dirt and lint in the washing water will stay in the space between the inner tub and the outer tub, and it is difficult to clean, resulting in bacteria and odors after years of use. In order to solve this problem, the prior art proposes a washing machine with no dehydration holes on the inner tub, so that the inner tub can hold the washing water independently during the washing process, but at the same time, the existing drainage method cannot realize no-hole drainage. Drainage of the inner barrel.

Aiming at the above-mentioned washing machine with no dehydration holes on the inner tub, a solution currently proposed is to install a drainage sealing device on the inner tub that can use the centrifugal force generated by the rotation of the inner tub to open the drain port, so as to realize the sealing of the inner tub during the washing and rinsing process. When drainage is required, the drain port can be opened to drain outwards. In the above scheme, in order to realize the automatic reset of the drainage sealing device after the drainage is completed, it is usually necessary to connect a spring or similar parts to the valve plug of the drainage sealing device, or the centrifugal block connected to the valve plug. Drive the valve plug to block the drain again, or drive the centrifugal block to move in reverse, and then drive the valve plug to block the drain.

However, the drainage of the inner barrel generally passes through the drainage sealing device, which may cause the spring in the drainage sealing device to be in a humid environment for a long time, and may cause a certain degree of rust to the spring made of metal. At the same time, the detergent contained in the drainage may further aggravate The degree of rust. On the other hand, lint carried in the drain may also remain on the spring. However, the reset force provided by the spring in the drainage sealing device and the centrifugal force that can be generated when the centrifugal block rotates with the inner bucket generally require a strict coordination relationship. The residue of lint on the spring and the corrosion of the spring itself will cause the size of the reset force it can provide. Changes in the washing machine may even lead to loss of elasticity, which will lead to the failure of the drainage sealing device and affect the use of the washing machine.

In view of this, the present invention is proposed.

Contents of the invention

In order to solve the above problems, the first object of the present invention is to provide an inner tub flange assembly and a washing machine. A centrifugal drainage device is installed on the flange, and the outer peripheral side of the elastic member is completely covered, which can protect the elastic member from being damaged. The contact with the drainage of the washing machine avoids the failure caused by the corrosion of the elastic parts or the hooking of lint, and prolongs the service life of the centrifugal drainage device. Specifically, the following technical solutions are adopted:

A flange assembly for an inner barrel, comprising a flange plate and a centrifugal drainage device, the flange plate is provided with a mounting part, and the centrifugal drainage device includes:

The centrifugal slider is installed on the installation part and slides relative to the flange under the action of centrifugal force;

The valve plug moves relative to the flange under the drive of the centrifugal slider;

The elastic member has a certain extension length along the sliding direction of the centrifugal slider, and applies a reset force to the centrifugal slider opposite to the sliding direction of the centrifugal slider under the action of centrifugal force, and its outer peripheral side is completely covered by the centrifugal slider and/or the mounting part.

Further, the centrifugal slider has a surface opposite to the installation part and spaced apart, and the elastic member is installed between the centrifugal slider and the surface opposite to the installation part;

A first covering part is formed on the centrifugal slider and/or the mounting part, and is located above the elastic member;

and a second covering part located under the elastic member;

The first covering part, the second covering part, and the surface of the centrifugal slider opposite to the mounting part completely cover the outer peripheral side of the elastic member.

Further, the surface of the centrifugal slider toward the installation part is partially protruded toward the installation part to form a first covering part and a second covering part; a clamp with an opening is formed between the first covering part and the second covering part A holding groove, the elastic member is placed inside the holding groove, and the opening of the holding groove is blocked by the installation part;

Preferably, the depth of the clamping groove is gradually deepened from the two sides close to the first covering part and the second covering part to the middle part, forming a concave curved surface connecting the first covering part and the second covering part.

Further, the mounting portion on the flange is at least partially located inside the clamping groove.

Further, the edge of the flange is partially concave to form an installation opening, the centrifugal slider is matched and installed in the installation opening, and a part of the flange located on the outer periphery of the installation opening forms the installation part;

Preferably, the installation opening has a certain length extending along the circumferential direction of the flange, and there are two installation parts, which are respectively located outside the two ends of the length extension direction of the installation opening; the opposite edges of the two installation parts are parallel to each other.

Further, a slideway is fixedly installed on the installation part, a first stopper part is provided on the centrifugal slider, and the slideway has a second stopper part arranged at a distance from the first stopper part; Two ends of the elastic member are respectively abutted against opposite surfaces of the first abutting portion and the second abutting portion.

Further, a concave clamping groove is provided on the surface of the centrifugal slider facing the mounting part, and the clamping groove is extended along the length direction of the elastic member, and the elastic member is arranged in the clamping groove;

One end of the clamping groove is closed to form a first stop portion, and the other end of the clamping groove is opened; the second stop portion on the slideway blocks the open end of the clamping groove.

Further, a guide groove is provided on the slideway, a sliding part extending along the sliding direction of the centrifugal slider is provided on the centrifugal slider, and the sliding part is slidably inserted in the guide groove;

Preferably, the slideway has a slideway fixing part connected to the lower surface of the installation part, and the lower edge of the slideway fixing part toward the inner side of the installation opening protrudes toward the inside of the installation opening to form a support part;

The second stop part protrudes from the surface of the slideway fixing part facing the inside of the installation opening, the lower surface of the second stop part is spaced apart from the upper surface of the support part, and the guide groove is formed between them.

Further, the lower surface of one end of the sliding part close to the central axis of the flange partially protrudes to form a limiting boss, and the limiting boss is arranged opposite to the end of the supporting part close to the central axis of the flange.

The present invention also provides a washing machine, which includes an inner tub, on which a drainage port is opened, and the above-mentioned inner tub flange assembly, the flange plate is coaxially arranged with the bottom of the inner tub, and is fixedly installed on the bottom of the inner tub on the bottom of the barrel;

During the washing/rinsing process, under the action of the restoring force of the elastic member, the centrifugal slider drives the valve plug to block the drain outlet, so that the inner tub can hold water independently during the washing/rinsing process; during the drainage process, the centrifugal slider overcomes the elastic member under the action of centrifugal force The reset force moves outward along the radial direction of the flange, driving the valve plug to open the drain port for drainage.

The second object of the present invention is to provide a washing machine with a centrifugal drainage device that can open the upper drain port of the inner tub under the action of centrifugal force, and the extension directions of the reversing transmission mechanism and the connecting frame of the installation bracket are respectively on the plane where the bottom of the tub is located. The coincidence of the vertical projections reduces the occupation of the area below the drain, thereby reducing the blocking effect on the water flow during the drainage process and avoiding the situation that affects the drainage efficiency. Specifically, the following technical solutions are adopted:

A washing machine, comprising an inner tub and a centrifugal drainage device, the bottom of the inner tub is provided with a drain port, characterized in that the centrifugal drainage device includes:

Mounting brackets,

The valve plug can be installed on the mounting bracket for relative movement, and seals the drain outlet during the washing/rinsing process, so that the inner tub can hold water independently;

The centrifugal slider slides relative to the bottom of the inner barrel under the action of centrifugal force;

The reversing transmission mechanism is connected with the valve plug and the centrifugal slider, and is used to convert the radial sliding of the centrifugal slider along the bottom of the barrel to drive the valve plug to move in a direction parallel to the axis of the inner barrel to open the drain;

The mounting bracket includes

The base is connected with the barrel bottom of the inner barrel;

The connecting frame connects the base and the valve plug, and the vertical projection of the extension direction of the connecting frame on the plane where the bottom of the barrel is coincides with the vertical projection of the extending direction of the reversing transmission mechanism on the plane where the bottom of the barrel is.

Further, the reversing transmission mechanism includes:

The connecting rod is arranged under the inner bucket, one end is connected to the centrifugal slider, and moves with the centrifugal slider;

One end of the reversing rod is hinged to the other end of the connecting rod, and is driven by the connecting rod to move in the same direction as the centrifugal slider. The other end of the reversing rod is hinged to the valve plug to drive the valve plug to move in a direction parallel to the axis of the inner barrel ;

The vertical projection of the extension direction of the connecting rod on the plane where the bucket bottom is located coincides with the vertical projection of the extension direction of the connecting frame on the plane where the bucket bottom is located;

Preferably, the connecting rod is arranged along the radial extension of the barrel bottom.

Further, the connecting frame includes:

guide part for installing the valve plug;

The connecting part is located below the drain port and connects the base and the guide part. The vertical projection of the extending direction of the connecting part on the plane of the bucket bottom coincides with the vertical projection of the extending direction of the connecting rod on the plane of the bucket bottom.

Further, the connecting portion is located between the connecting rod and the bottom of the inner tub in the vertical direction;

Preferably, the base is connected to the part of the bottom of the bucket located at the outer circumference of the drain, the guide part is located inside or below the drain; the part of the bottom of the bucket located at the outer circumference of the drain protrudes below the bottom of the bucket, the The upper surface of the connecting part is a concave curved surface whose height gradually decreases from both ends to the middle part.

Further, the base includes:

Two fixed parts are arranged at intervals on the outer circumference of the drain port, and are connected with the bottom of the inner barrel;

a transition part, used to connect the two fixed parts;

Both ends of the connecting portion are respectively connected to the transition portion and the guide portion;

Preferably, an installation hole is provided on the fixing part.

Further, the drain opening is circular, and the transition portion has an arc edge concentric with the drain opening on the side facing the guide portion, and the corresponding radius of the arc edge is larger than the radius of the drain opening.

Further, the guide part has a hollow slideway, and the valve plug includes:

The sealing cover is arranged inside the inner barrel and is used to block/open the drain;

One end of the support rod is relatively movable and arranged in the hollow slideway of the guide part, and is hinged with the reversing rod, and the other end extends out of the guide part and is fixedly connected with the sealing cover.

Further, one end of the reversing rod is located below the water outlet, and is driven by the connecting rod to move radially along the bottom of the bucket, and the other end of the reversing rod extends into the inner bucket through the water outlet to connect with the support rod, and through the support rod Drive the sealing cover to move up and down to open/block the drain.

Further, the centrifugal slider is a plate-shaped structure perpendicular to the axis of the inner bucket, and the centrifugal slider of the plate-shaped structure extends along the circumferential direction of the bucket bottom and has a certain length;

Preferably, the centrifugal slider is arranged close to the outer periphery of the barrel bottom.

Further, a slideway is fixedly installed on the bottom of the inner barrel, and a guide groove parallel to the sliding direction of the centrifugal slider is provided on the slideway, and a sliding part is arranged on the centrifugal slider, and the sliding part can slide set in the guide groove;

Preferably, an elastic member is installed between the centrifugal slider and the slideway, and the elastic member applies a reset force to the centrifugal slider, and the direction of the reset force is opposite to the direction in which the centrifugal slider slides under the action of centrifugal force;

Preferably, two slideways are provided, and the guide grooves on the two slideways are parallel to each other, and the centrifugal slide block is installed between the two slideways.

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

In the inner barrel flange assembly of the present invention, a centrifugal drainage device is installed on the flange, and a cladding structure is formed through the centrifugal slider and/or the installation part on the flange, and the centrifugal slider is used to apply a reset force. The outer peripheral side of the elastic part is completely covered. When it is used in the washing machine, it can protect the elastic part from contacting with the drainage of the washing machine, avoiding the elastic part from being rusted in a humid environment, or the elastic failure caused by the hook hanging on the elastic part. Thereby prolonging the service life of the centrifugal drainage device.

In the washing machine of the present invention, the respective extension directions of the reversing transmission mechanism and the connecting frame of the mounting bracket have coincident vertical projections on the plane where the bottom of the bucket is located, which can reduce the occupation of the area below the drain port, thereby avoiding the large area of the drain port being blocked. It can also reduce the possibility of the lint carried in the drainage hanging on the centrifugal drainage device, avoiding the reduction of drainage efficiency caused by hooking the lint, or preventing the centrifugal drainage device from closing the inner barrel, resulting in water leakage Phenomenon.

In the washing machine of the present invention, the elastic member exerts a reset force on the centrifugal slider during the washing/rinsing process, and the centrifugal slider transmits the force to the valve plug for sealing the drain port, and the sealing effect is better. When draining water, the inner barrel is controlled to rotate at a certain speed to generate a centrifugal force that can overcome the reset force, and then the centrifugal slider can be driven to move, thereby driving the valve plug to open the drain port. The inner barrel does not need to be positioned, and the control method is simple.

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 the present invention, are used to provide a further understanding of the present invention, and the schematic embodiments of the present invention and their descriptions 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 also obtain other drawings according to these drawings without creative efforts. In the attached picture:

Figure 1 is an exploded view of the bottom of the inner tub of the washing machine in Embodiments 1 to 3 of the present invention;

Fig. 2 is a schematic structural view of a flange in Embodiments 1 to 3 of the present invention;

Fig. 3 is the bottom view of the flange in Embodiments 1 to 3 of the present invention;

Fig. 4 is a schematic diagram of the bottom of the inner tub of the washing machine in Embodiments 1 to 3 of the present invention when the drain outlet is closed;

Fig. 5 is the enlarged schematic view of place A in Fig. 4 of the present invention;

Fig. 6 is a cross-sectional view of the bottom of the inner tub of the washing machine in Embodiments 1 to 3 of the present invention when the drain outlet is closed;

Fig. 7 is the enlarged schematic view of place B in Fig. 6 of the present invention;

Fig. 8 is a schematic diagram of the bottom of the inner tub of the washing machine in Embodiments 1 to 3 of the present invention when the drain port is opened;

Fig. 9 is a cross-sectional view of the bottom of the inner tub of the washing machine in Embodiments 1 to 3 of the present invention when the drain port is opened;

Fig. 10 is an enlarged schematic diagram of place C in Fig. 9 of the present invention;

Fig. 11 is a schematic structural view of a centrifugal slider in an embodiment of the present invention;

Fig. 12 is a schematic structural view of two slideways in an embodiment of the present invention;

Fig. 13 is a schematic structural view of the mounting bracket in the embodiment of the present invention;

Fig. 14 is a schematic diagram of another viewing angle of the mounting bracket in the embodiment of the present invention;

Fig. 15 is a schematic diagram of the bottom of the inner tub of the washing machine in Embodiments 4 and 5 of the present invention when the drain outlet is closed;

Fig. 16 is an enlarged schematic view at D in Fig. 15 of the present invention;

Figure 17 is an exploded view of the bottom of the inner tub of the washing machine in Embodiments 4 and 5 of the present invention;

Fig. 18 is a cross-sectional view of the drain outlet of the washing machine in Embodiments 4 and 5 of the present invention when the drain outlet is blocked;

Fig. 19 is a cross-sectional view of the drain outlet of the washing machine in Embodiments 4 and 5 of the present invention when the drain outlet is open.

Among the figure: 100, barrel bottom; 101, drain port; 200, valve plug; 201, sealing cover; 202, support rod; 203, sealing gasket; 300, centrifugal slider; 310, centrifugal block body; 311, gap; 320 , sliding part; 321, sliding part; 322, first stop part; 323, limit boss; 324, first covering part; 325, second covering part; 326, clamping groove; 410, reversing rod; 420, connecting rod; 500, mounting bracket; 510, base; 511, fixed part; 512, transition part; 520, connecting frame; 521, guide part; 600, slideway; 601, guide groove; 602, second stop part; 603, slideway fixing part; 604, support part; 610, elastic member; 700, flange plate; 710, installation port; 711, first Edge; 712, second edge; 713, fillet; 720, first installation part; 721, first installation hole; 730, drainage avoidance; 740, second installation part; 741, second installation hole; 751, center area; 752, peripheral area; 753, transition surface; 754, vertical section.

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 description

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 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, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, or in a specific orientation. construction and operation, therefore, should not be construed as limiting the invention.

In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrally connected; it may be mechanically connected or electrically connected; it may be directly connected or indirectly connected 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.

Embodiment one

As shown in Figures 1 to 12, the inner tub flange assembly described in this embodiment includes a flange 700 and a centrifugal drainage device, the flange 700 is provided with a second installation part 740, and the centrifugal drainage device includes:

The centrifugal slider 300 is installed on the second mounting part 740 and slides relative to the flange 700 under the action of centrifugal force;

The valve plug 200 moves relative to the flange 700 driven by the centrifugal slider 300;

The elastic member 610 has a certain extension length along the sliding direction of the centrifugal slider 300, and applies a reset force to the centrifugal slider 300 opposite to the sliding direction of the centrifugal slider 300 by centrifugal force, and its outer peripheral side is covered by the centrifugal slider 300 and the second installation. Portion 740 is completely wrapped.

In this embodiment, the centrifugal slider 300 is mounted on the flange 700 so as to slide radially along the flange 700, the centrifugal slider 300 and the valve plug 200 are connected through a transmission mechanism, and the centrifugal slider 300 When 700 slides radially, the valve plug 200 is driven to move by the transmission mechanism.

The inner tub flange assembly is applied to washing machines. When draining water, the inner tub is controlled to rotate at a certain speed. The centrifugal slider 300 slides radially outward along the flange 700 under the action of centrifugal force, and the valve plug 200 is driven by the transmission mechanism to open the drain port 101. When the rotating speed of the inner tub decreases until it stops rotating, the centrifugal force on the centrifugal slider 300 gradually decreases. When the centrifugal force on the centrifugal slider 300 is smaller than the reset force generated by the elastic member 610, the centrifugal slider 300 will Slide toward the center of the flange 700, drive the valve plug 200 to block the drain port 101 through the transmission mechanism, and realize the automatic reset of the centrifugal drainage device.

In this embodiment, the outer peripheral side of the elastic member 610 is completely covered by the cooperation of the centrifugal slider 300 and the second installation part 740, which can protect the elastic member 610 from easily contacting the drain of the washing machine. The member 610 can prevent the elastic member 610 from being corroded in a humid environment for a long time, causing its elastic failure and failing to provide a reset force. On the other hand, it is also possible to prevent the elastic member 610 from being hooked on the thread scraps, resulting in elastic failure caused by the inability of the elastic member 610 to produce effective deformation. Since the above structure protects the elastic member 610 inside the centrifugal drainage device from losing its elasticity easily, the service life of the centrifugal drainage device is prolonged.

The elastic member 610 in this embodiment is a spring, which can generate elastic force as the restoring force of the centrifugal slider 300 when compressed. The elastic member 610 can also be any elastic device that can provide elastic force when compressed.

In another solution of this embodiment, the second mounting portion on the centrifugal slider or the flange can also be used to separately form a covering structure that can cover the outer peripheral side of the elastic member, so as to achieve the same effect.

In a specific solution of this embodiment, the centrifugal slider 300 has a surface opposite to the second installation portion 740 and spaced apart, and the elastic member 610 is installed between the surface of the centrifugal slider 300 opposite to the second installation portion 740 .

The first covering part 324 is formed on the centrifugal slider 300 and/or the second mounting part 740 and is located above the elastic member 610;

And the second covering part 325 is located under the elastic member 610 .

The first covering part 324 , the second covering part 325 , and the surface of the centrifugal slider 300 opposite to the second mounting part 740 completely cover the outer peripheral side of the elastic member 610 .

In detail, the first covering part 324 and the second covering part 325 may be entirely formed by the centrifugal slider 300, or may be entirely formed by the second mounting part 740, or may be both the first covering part 324 and the second covering part 325. One of them is formed by the centrifugal slider 300 and the other is formed by the second mounting part 740 .

In a further solution of this embodiment, the surface of the centrifugal slider 300 facing the second mounting portion 740 partially protrudes toward the second mounting portion 740 to form the first covering portion 324 and the second covering portion 325 . An open clamping groove 326 is formed between the first covering portion 324 and the second covering portion 325 , the elastic member 610 is placed inside the clamping groove 326 , and the opening of the clamping groove 326 is blocked by the second mounting portion 740 .

The first covering part 324 and the second covering part 325 are formed on the centrifugal slider 300, which cooperate with the second mounting part 740 on the flange 700, so that the inner surface of the outer peripheral side of the elastic member 610 is clamped by the groove 326 and the second The mounting portion 740 completely covers the surface facing the centrifugal slider 300 , and has a simple structure and is easy to realize.

Preferably, the depth of the clamping groove 326 is gradually deepened from two sides close to the first covering portion 324 and the second covering portion 325 to the middle, forming a concave curved surface connecting the first covering portion 324 and the second covering portion 325 . In this embodiment, a cylindrical spring is used as the elastic member 610, and the concave curved surface formed in the clamping groove 326 can better fit the outer peripheral surface of the elastic member 610, so that the elastic member 610 is stably held in the clamping groove 326, Not easy to shift.

In a further solution of this embodiment, the second mounting portion 740 on the flange 700 is at least partially located inside the clamping groove 326 .

Inserting the edge of the second mounting part 740 into the clamping groove 326 ensures on the one hand the blocking effect of the second mounting part 740 on the opening of the clamping groove 326. During the sliding process of the centrifugal slider 300, no The misalignment between the second mounting portion 740 and the centrifugal slider 300 causes the elastic member 610 to be exposed to the outside. On the other hand, the clamping groove 326 extends in a direction parallel to the sliding direction of the centrifugal slider 300, and the edge of the second mounting part 740 is inserted in the clamping groove 326, which can play a certain role in the sliding process of the centrifugal slider 300. The guiding function ensures the stability of the sliding path of the centrifugal slider 300 .

In a further solution of this embodiment, the edge of the flange 700 is partially recessed to form the installation opening 710, the centrifugal slider 300 is matched and installed in the installation opening 710, and the part of the flange 700 located on the outer circumference of the installation opening 710 forms a second installation Section 740.

Preferably, the installation opening 710 has a certain length extending along the circumferential direction of the flange 700 , and there are two second installation parts 740 located outside the two ends of the installation opening 710 in the extending direction of the length. The opposite edges of the two second installation parts 740 are parallel to each other.

In the above solution, the flange 700 forms an installation opening 710 by partially recessing the edge, which provides an installation space for the centrifugal drainage device, especially the centrifugal slider 300 therein. The centrifugal slider 300 is set as a flat plate structure, which can be installed on a plane flush with the flange 700 without occupying additional space on the upper or lower side of the flange 700. The overall structure is compact and occupies a small space. The space occupied by it under the inner tub of the washing machine can be reduced, thereby facilitating the expansion design of the inner tub.

Further, the slideway 600 is fixedly installed on the second installation part 740, and the first stopper part 322 is provided on the centrifugal slider 300, and the slideway 600 has a second stopper part 602 opposite to the first stopper part 322 and arranged at intervals. . Two ends of the elastic member 610 abut against opposite surfaces of the first abutting portion 322 and the second abutting portion 602 respectively.

Through the design of the distance between the first stop portion 322 and the second stop portion 602, and the initial length of the elastic member 610, the valve plug 200 is located at the position of blocking the drain port 101, that is, the centrifugal slider 300 is located close to When the position of the central axis of the flange 700 is reached, the elastic member 610 has a certain pre-compression force. The elastic member 610 pushes the first stop portion 322 to the right through the pre-compression force, and then applies force to the valve plug 200 through the transmission mechanism, assisting the sealing effect of the valve plug 200 on the drain port 101 .

During the sliding process of the centrifugal slider 300 towards the outer periphery of the flange 700, the first stopper part 322 and the second stopper part 602 gradually approach, further compressing the elastic member 610 to generate greater elastic force, and at the same time drive the valve plug 200 to open Drain 101. When the centrifugal force on the centrifugal slider 300 gradually disappears, the elastic force generated by the elastic member 610 can be used as the reset force of the centrifugal slider 300, and the centrifugal slider 300 is moved closer to the center of the flange 700 by pushing the first stop portion 322 to the right. Sliding in the axial direction drives the valve plug 200 to block the drain port 101 again.

Specifically, the clamping groove 326 extends along the length direction of the elastic member 610 , one end of the clamping groove 326 is closed to form the first stop portion 322 , and the other end of the clamping groove 326 is opened. The second stop portion 602 on the slideway 600 blocks the open end of the clamping groove 326. The elastic member 610 is disposed inside the clamping groove 326 , and its two ends respectively abut against the first abutting portion 322 and the second abutting portion 602 .

In a further solution of this embodiment, a guide groove 601 is provided on the slideway 600 , a sliding part 321 extending along the sliding direction of the centrifugal slider 300 is provided on the centrifugal slider 300 , and the sliding part 321 is slidably inserted in the guide groove 601 .

In the above scheme, the guide groove 601 on the slideway 600 cooperates with the sliding part 321 on the centrifugal slider 300, and plays a major guiding role in the sliding process of the centrifugal slider 300, and cooperates with the second mounting part 740 to adjust the centrifugal slider. The auxiliary guiding function of 300 can prevent the centrifugal slider 300 from deviating from the sliding path, thereby driving the valve plug 200 to move more stably.

Specifically, the slideway 600 has a slideway fixing part 603 connected to the lower surface of the second installation part 740 , and the slideway fixing part 603 has a hole. The second installation part 740 is provided with a second installation hole 741, and the second installation part 740 and the slideway fixing part 603 can be connected as a whole by screws passing through the second installation hole 741 and the opening on the slideway fixing part 603 , to realize the installation and fixation of the slideway 600 and the flange plate 700 .

The lower edge of the surface of the slideway fixing part 603 towards the inside of the installation opening 710 protrudes to form a support part 604 inside the installation opening 710, and the second stopper part 602 protrudes from the surface of the slideway fixing part 603 towards the inside of the installation opening 710. The lower surface of the stop portion 602 is spaced apart from the upper surface of the supporting portion 604 , and a guide groove 601 is formed between them.

In this embodiment, the sliding part 321 and the second covering part 325 are the same structure arranged on the centrifugal slider 300. On the one hand, it cooperates with the guide groove 601 on the slideway 600 to realize the guidance of the centrifugal slider 300. On the one hand, It can be used to cover the lower surface of the elastic member 610 , and cooperate with the first covering portion 324 and the second mounting portion 740 to achieve covering the outer peripheral side of the elastic member 610 . The same structure achieves two effects, which can simplify the structure of the centrifugal slider 300 and make the overall structure of the inner barrel flange assembly more compact.

In a further solution of this embodiment, the lower surface of one end of the sliding part 321 close to the central axis of the flange 700 partially protrudes to form a limiting boss 323, and the limiting boss 323 and the end of the supporting part 604 close to the central axis of the flange 700 relative settings.

In the above scheme, the limit boss 323 cooperates with the support part 604 to limit the slidable range of the centrifugal slider 300. sliding, so that the farthest distance that the centrifugal slider 300 can slide can be accurately controlled. Furthermore, when designing the internal structure of the washing machine, enough space can be accurately reserved for the sliding of the centrifugal slider 300, so as to prevent the centrifugal slider 300 from scratching or even colliding with the internal structure of the washing machine when the centrifugal slider 300 slides to open the drain port 101.

In a further solution of this embodiment, the centrifugal slider 300 includes a centrifugal slider body 310 and a slider 320 fixedly connected to the centrifugal slider body 310 . The matching installation structures of the centrifugal slider 300 , the second mounting portion 740 and the slideway 600 are all formed on the slider 320 , and the centrifugal slider 300 is slidably installed on the flange 700 and the slideway 600 through the slider 320 .

Specifically, the centrifugal block body 310 extends a certain length along the circumferential direction of the flange 700, the sliders 320 are arranged at both ends of the centrifugal block body 310 in the longitudinal direction, the first covering part 324, the second covering part 325 (that is, the sliding part 321 ) and the first stop portion 322 are formed by the sliding piece 320 , and the outer peripheral side of the elastic piece 610 is completely covered by the sliding piece 320 and the second mounting portion 740 on the flange 700 .

In order to provide greater quality to generate greater centrifugal force, the centrifugal block body 310 is made of metal material. If it is directly installed on the slideway 600, the coefficient of friction between the two will be large, and the centrifugal block 300 will slide when it slides. A large frictional resistance is generated, which hinders the sliding of the centrifugal slider 300 and may cause the situation that the drain port 101 cannot be opened.

In this embodiment, sliding parts 320 are provided on both sides of the centrifugal block body 310 for sliding in cooperation with the slideway 600 . The sliding piece 320 is made of materials that can reduce the coefficient of friction. For example, the sliding piece 320 made of plastic can be selected to be fixed on the two ends of the centrifugal block body 310. The friction coefficient between the sliding piece 320 and the slideway 600 is small, which can reduce the friction coefficient. The sliding frictional force suffered by the centrifugal slider 300 is small, so that the centrifugal slider 300 can slide under the action of smaller centrifugal force, and control the opening of the drain port 101 .

This embodiment also provides a washing machine, including an inner tub, on which a drain port 101 is opened, and the above-mentioned inner tub flange assembly, where the flange 700 is arranged coaxially with the bottom 100 of the inner tub, and is fixedly installed in the inner tub 100 on the bottom of the barrel.

During the washing/rinsing process, under the reset force of the elastic member 610, the centrifugal slider 300 drives the valve plug 200 to block the drain outlet 101, so that the inner tub can hold water independently during the washing/rinsing process; during the drainage process, the centrifugal slider 300 is affected by The centrifugal force overcomes the reset force of the elastic member 610 and moves radially outward along the flange 700 , driving the valve plug 200 to open the drain port 101 to drain water.

In this embodiment, no dehydration hole is provided on the barrel wall of the inner barrel at least in the area lower than the highest water level of the washing machine. During the washing/rinsing process, the elastic member 610 keeps the centrifugal slider 300 at a position close to the central axis of the flange 700 , so that the valve plug 200 blocks the drain port 101 to form a closed inner tub, so that the inner tub can hold water independently during the washing/rinsing process. The washing machine may not be provided with an outer tub, but only a water collecting device is provided under the inner tub, and the height of the upper edge of the water collecting device is lower than the height of the mouth of the inner tub, so that the expansion of the inner tub can be realized.

During the washing/rinsing process, the inner tub is in a free state, and the valve plug 200 blocks the drain port 101 . When draining water, control the inner barrel to rotate at a certain speed, thereby generating enough centrifugal force to make the centrifugal slider 300 overcome the force exerted by the elastic member 610, and the centrifugal slider 300 slides radially outward along the flange 700 under the centrifugal force, driving the valve The movement of the plug 200 opens the drain port 101 to realize the drainage function.

In the washing machine of this embodiment, the inner tub can hold water independently during the washing/rinsing process, and an inner tub flange assembly with a centrifugal drainage device is installed under the inner tub to realize the drainage function of the inner tub. The centrifugal drainage assembly is provided with an elastic member 610 for applying a reset force to the centrifugal slider 300 so that the centrifugal slider 300 can automatically reset after the centrifugal force disappears, and restore the state where the valve plug 200 blocks the drain port 101 . Through the structural design of the centrifugal slider 300, the flange 700 and the slideway 600, the elastic member 610 is completely covered by the surrounding structure, and will not directly contact the washing machine drain during the drainage process, thereby preventing the elastic member 610 from rusting Or the situation of hooking thread scraps avoids the elastic failure of the elastic member 610, thereby prolonging the service life of the centrifugal drainage device and the washing machine.

Embodiment two

As shown in Figures 1 to 14, this embodiment is a further limitation of the first embodiment above, and the centrifugal drainage device also includes a reversing transmission mechanism connecting the centrifugal slider 300 and the valve plug 200, and is used to install the valve plug 200 for the mounting bracket 500. The valve plug 200 is installed on the mounting bracket 500 so that it can move relatively. The centrifugal slider 300 drives the valve plug 200 to move through the reversing transmission mechanism. The reversing transmission mechanism can convert the sliding of the centrifugal slider 300 in one direction into driving the valve plug. 200 movement in the other direction.

Specifically, as shown in FIGS. 6 to 12 , when the centrifugal slider 300 slides radially and horizontally along the flange 700 , the valve plug 200 moves vertically relative to the mounting bracket 500 in a direction parallel to the central axis of the flange 700 to Open/block the drain port 101, the drain port 101 is arranged on the barrel bottom 100 of the inner barrel, and when the drain port 101 is opened, the drain port 101 is directly drained downward, and the drainage efficiency is higher.

In the centrifugal drainage device of this embodiment, the mounting bracket 500 specifically includes:

The base 510 is connected with the flange 700;

The connecting frame 520 is used for connecting the base 510 and the valve plug 200 .

Wherein, the vertical projection of the extending direction of the connecting frame 520 on the plane where the flange 700 is located coincides with the vertical projection of the extending direction of the reversing transmission mechanism on the plane where the flange 700 is located.

In the above scheme, when the inner barrel flange assembly is installed on the bottom 100 of the inner barrel, the connecting frame 520 of the mounting bracket 500 and the reversing transmission mechanism are located below the drain port 101, and the structural design of the centrifugal drainage device makes the connecting frame The respective extension directions of 520 and the reversing transmission mechanism coincide on the plane where the flange 700 is located, that is, the vertical projections on the horizontal plane in the figure coincide, which can reduce the occupancy of the area below the drain port 101 . When the washing machine is draining, the situation that the drain port 101 is blocked by a large area is avoided, thereby ensuring a higher draining efficiency.

On the other hand, the washing machine drain may carry a large amount of lint, which may get caught and remain anywhere the drain water flows. The extension direction of the connecting frame 520 and the reversing transmission mechanism has a coincident projection on the horizontal plane, which can also reduce the area exposed to the drainage water flow, thereby reducing the hooking residue of lint, thereby avoiding the reduction of drainage efficiency caused by hooking lint , or hinder the action of the centrifugal drainage device to close the inner barrel, resulting in water leakage.

In this embodiment, in order to realize the movement of the centrifugal slider 300 and the valve plug 200 in different directions, the reversing transmission mechanism specifically includes:

The connecting rod 420, the left end of which is connected to the centrifugal slider 300, moves with the centrifugal slider 300;

One end of the reversing rod 410 is hinged to the right end of the connecting rod 420, driven by the connecting rod 420 to move in the same direction as the centrifugal slider 300, and the other end of the reversing rod 410 is hinged to the valve plug 200 to drive the valve plug 200 in the other direction sports.

The vertical projection of the extending direction of the connecting frame 520 on the plane where the flange 700 is located coincides with the vertical projection of the extending direction of the connecting rod 420 on the plane where the flange 700 is located.

In a preferred solution of this embodiment, the extending direction of the connecting rod 420 is parallel to the sliding direction of the centrifugal slider 300 , that is, the connecting rod 420 and the connecting frame 520 both extend radially along the flange 700 . The above method can ensure that the force applied by the connecting rod 420 to the reversing rod 410 does not have a component along the circumference of the flange 700, thereby reducing the component of the force acting on the valve plug 200 in the horizontal direction and reducing the force of the valve plug. 200 is subjected to frictional resistance when moving relative to the mounting bracket 500 .

In this embodiment, the centrifugal slider 300 slides horizontally to the left under the action of centrifugal force, and the connecting rod 420 drives one end of the reversing rod 410 to move synchronously to the left with the centrifugal slider 300 . The other end of the reversing rod 410 swings around its end hinged to the connecting rod 420 , so as to drive the valve plug 200 to move vertically upward in the mounting bracket 500 .

In detail, the right end of the connecting rod 420 has a connecting groove, and the lower end of the reversing rod 410 is arranged in the connecting groove to be hinged with the connecting rod 420 .

In a further solution of this embodiment, the connecting frame 520 includes:

The guide part 521 is used for installing the valve plug 200;

The connecting part 522 is used for connecting the base 510 and the guiding part 521 .

Wherein, the vertical projection of the extending direction of the connecting portion 522 on the plane where the flange 700 is located coincides with the vertical projection of the extending direction of the connecting rod 420 on the plane where the flange 700 is located.

Further, the connecting rod 420 extends radially from the centrifugal slider 300 along the barrel bottom 100 from outside to inside until it is hinged with the reversing rod 410, so that the distance between the centrifugal slider 300 and the central axis of the flange 700 is greater than that between the valve plug 200 and the center axis of the flange 700. The distance from the central axis, that is, the centrifugal slider 300 has a larger turning radius. In this way, the centrifugal slider 300 can provide greater centrifugal force.

In this embodiment, the connecting part 522 is arranged above the connecting rod 420, and both extend in the same direction, thereby forming a structure overlapping up and down, so as to reduce the blocking of the drain port 101 when installed in the washing machine, and the structure is simple.

In a preferred solution of this embodiment, the upper surface of the connecting portion 522 is a concave curved surface whose height gradually decreases from both ends to the middle.

In this embodiment, the valve plug 200 seals the drain outlet 101 downward from the inside of the inner barrel. In order to achieve a better sealing effect, the part of the barrel bottom 100 located on the outer periphery of the drain outlet 101 protrudes below the barrel bottom 100 to cooperate with the valve plug 200. . The position of the guide part 521 corresponds to the drain port 101, and the base 510 is used for fixing the mounting bracket 500, and is arranged on the outer periphery of the drain port 101, so that the connecting part 522 extends from the outer periphery of the drain port 101 to the center of the drain port 101, and the connecting part The middle area of 522 passes through the area that protrudes downward on the barrel bottom 100 . The upper surface of the connecting portion 522 is set as a concave curved surface whose height gradually decreases from both ends to the middle, which can effectively avoid the area of the barrel bottom 100 protruding downward, so that the mounting bracket 500 can be installed closer to the barrel bottom 100, that is, The flange 700 can be as close as possible to the lower surface of the barrel bottom 100 of the inner barrel, thereby making the structure more compact.

In a further solution of this embodiment, a groove 5221 extending in the same direction as the connecting rod 420 is provided on the lower surface of the connecting portion 522 , and the connecting rod 420 is partially disposed in the groove 5221 . The above arrangement can make the connecting part 522 and the connecting rod 420 closer in the vertical direction, and design the overall structure of the centrifugal drainage device more compactly, so that the height in the longitudinal direction is as close as possible to the thickness of the flange 700, reducing The volume protruding from the lower surface of the flange 700 can reduce the occupation of the space under the inner tub when applied to a washing machine, which is beneficial to the expansion of the inner tub.

In this embodiment, the base 510 specifically includes:

Two fixed parts 511 are arranged at intervals, respectively located on both sides of the guide part 521, and connected to the flange 700;

The transition part 512 is used for connecting the two fixing parts 511 .

Two ends of the connecting portion 522 are respectively connected to the transition portion 512 and the guiding portion 521 .

In this embodiment, the fixing part 511 of the base 510 is connected to the flange 700 to realize the fixing of the mounting bracket 500 relative to the flange 700 , and the guide part 521 is suspended relative to the fixing part 511 . There are two fixing parts 511 , which are preferably symmetrical with respect to the guiding part 521 , so that the fixing effect on the mounting bracket 500 is better and the structure is more firm.

In a further solution of this embodiment, the guide part 521 has a vertically extending hollow slideway, and the transition part 512 has an arc-shaped edge facing the side where the guide part 521 is located, and the center of the arc-shaped edge is located at the center of the hollow slideway. axis. The radius corresponding to the arc-shaped edge is larger than the radius of the drain outlet 101, so that the transition part 512 can avoid the area under the drain outlet 101, and prevent the transition part 512 from blocking the drainage flow and affecting the drainage efficiency.

The valve plug 200 in this embodiment specifically includes a sealing cover 201 and a support rod 202. The sealing cover 201 is arranged inside the inner bucket for blocking/opening the drain port 101. The two ends of the support rod 202 are respectively connected to the sealing cover 201 and the reversing rod. 410. Specifically, the lower end of the support rod 202 is slidably disposed in the hollow slideway of the guide portion 521 and is hinged to the reversing rod 410 , and the upper end of the support rod 202 protrudes from the guide portion 521 and is fixedly connected to the sealing cover 201 .

Furthermore, the right side of the guide part 521 has an escape groove 5211 that extends vertically and has an open lower end. When the reversing rod 410 swings to drive the support rod 202 to move, the lower half of the reversing rod 410 seals off the drain in the sealing cover 201. When the mouth 101 passes through the escape groove 5211, the guide part 521 protrudes. The lower end of the support rod 202 has an open installation groove, and the upper end of the reversing rod 410 is inserted into the installation groove to be hinged with the support rod 202 .

Preferably, a sealing gasket 203 is fixedly arranged on the lower side of the outer periphery of the sealing cover 201, and when the valve plug 200 blocks the drain outlet 101, the gasket 203 is sealed and attached to the outer periphery of the drain outlet 101 inside the barrel bottom 100, thereby achieving a better sealing effect .

Since the sealing cover 201 is located inside the inner bucket, it blocks the drain 101 from top to bottom. When the inner bucket is full of water, the water pressure acts on the upper surface of the sealing cover 201 to provide auxiliary sealing force, and the sealing effect is better. The guide part 521 can limit the movement of the support rod 202 in the horizontal direction, so that the horizontal movement of the centrifugal slider 300 can be effectively converted into the vertical movement of the valve plug 200 through the reversing rod 410 .

In this embodiment, by designing the structure of the centrifugal drainage device, the extension directions of the connecting frame 520 of the mounting bracket 500 and the reversing transmission mechanism coincide on the plane where the flange plate 700 is located, specifically, the connecting part 522 and The extension directions of the connecting rods 420 in the reversing transmission mechanism overlap on the plane where the flange 700 is located, which can reduce the shielding of the area under the drain port 101 by the centrifugal drainage device, thereby reducing the impact of the centrifugal drainage device on the drainage area during the washing machine drainage process. The blocking effect of water flow improves the drainage efficiency. At the same time, the connecting portion 522 and the connecting rod 420 overlap up and down, which reduces the area exposed to the drainage water flow, and can reduce the hooking of the lint, thereby avoiding the impact of the lint hooking on the working effect of the centrifugal drainage device.

Embodiment three

As shown in Figures 1 to 12, this embodiment provides a flange 700, which is used in the inner barrel flange assembly in the first or second embodiment above, so as to realize that the centrifugal drainage device is integrated on the flange 700, Forms a monolithic structure that can be installed directly in a washing machine.

The flange 700 of this embodiment is shown in FIG. 2 and FIG. 3 , the edge of the flange 700 is partially inwardly recessed to form an installation opening 710 , and the installation opening 710 has a certain extension length in the circumferential direction of the flange 700 . The installation opening 710 has two first edges 711 located at both ends of its extending direction, and a second edge 712 connecting the two first edges 711 . A first mounting portion 720 protruding inwardly from the mounting opening 710 is disposed on the second edge 712 .

The outer sides of the two first edges 711 of the installation opening 710 respectively form second installation portions 740 for installing the slideway 600 , and the second installation portions 740 are provided with second installation holes 741 .

This embodiment also provides an inner barrel flange assembly formed after the centrifugal drainage assembly and the flange plate 700 are assembled, wherein the centrifugal drainage assembly is installed in the installation port 710 of the flange plate 700, and the installation bracket 500 and the first installation Section 720 is connected. The slideway 600 is connected to the second mounting part 740 , and the centrifugal slider 300 is slidably installed on the slideway 600 , so that it can stably slide radially along the flange 700 .

In the above solution, the flange 700 forms the installation opening 710 by partially indenting the edge, which provides an installation space for the centrifugal drainage device. The fixing of the centrifugal drainage device and the flange plate 700 is realized. The centrifugal drainage device is integrally integrated on the flange plate 700, which has a compact structure and takes up little space. The two can be pre-assembled to form an inner barrel flange assembly, and then installed in the washing machine as a whole, and the assembly process is simple.

Specifically, the first mounting portion 720 described in this embodiment is formed by extending a certain length from the second edge 712 to the outer periphery of the flange 700 .

In detail, the first installation part 720 is provided with a first installation hole 721 . Preferably, at least two first mounting holes 721 are provided along the extending direction of the first mounting portion 720.

In this embodiment, the first mounting part 720 is specifically connected to the fixing part 511 of the mounting bracket 500. During assembly, the first mounting part 720 can be connected to the fixing part 511 of the mounting bracket 500 by passing through the first mounting hole 721. fixed, so as to realize the fixing of the mounting bracket 500 on the flange 700. The centrifugal slider 300 is matched and installed in the installation port 710 , and can slide radially from inside to outside along the flange 700 under the action of centrifugal force, and then drive the valve plug 200 to move upward through the connecting rod 420 and reversing rod 410 to open the drain port 101 .

In a further solution of this embodiment, two first installation parts 720 are arranged symmetrically in the installation opening 710 , and the extension directions of the two first installation parts 720 are parallel to each other.

Further, the two first edges 711 are parallel to the extending direction of the first installation portion 720 .

In the centrifugal drainage device, the centrifugal slider 300 is a plate structure perpendicular to the central axis of the flange 700 , and is matched and installed in the installation opening 710 .

In the above solution, under the action of centrifugal force, the centrifugal slider 300 slides radially relative to the flange 700, and the relative position between the mounting bracket 500 and the flange 700 is always fixed, that is, the distance between the centrifugal slider 300 and the mounting bracket 500 is also fixed. Relative sliding in the same direction exists. The shape of the installation opening 710 matches the outline of the centrifugal slider 300, and the extension direction of the first installation part 720 and the first edge 711 is parallel to the sliding direction of the centrifugal slider 300. During the sliding process of the centrifugal slider 300, The gap between its edge and the first edge 711 of the installation opening 710, as well as the gap between the edge of the first installation part 720 and the installation bracket 500 is always stable, avoiding the unstable sliding path of the centrifugal slider 300 , the effect of driving the movement of the valve plug 200 is better.

In a further solution of this embodiment, the second edge 712 is partially recessed inward to form a drainage avoidance opening 730 , and the first mounting portion 720 is disposed on the second edge 712 in an area outside the drainage avoidance opening 730 .

Preferably, the two first installation parts 720 are respectively located on both sides of the drainage avoidance opening 730 .

When the inner tub flange assembly is applied to a washing machine, the drainage avoidance port 730 is located below the drain outlet 101 on the inner tub, thereby avoiding the drainage water flow, and the first installation part 720 is arranged in an area other than the drainage avoidance port 730, which can prevent the drainage from being damaged. The water flow creates a blockage that affects the drainage efficiency of the washing machine.

The two first mounting portions 720 are respectively connected to the two fixing portions 511 of the mounting bracket 500 , so that the mounting bracket 500 can be more stably fixed on the flange 700 .

In this embodiment, the upper surface of the transition portion 512 connecting the two fixing portions 511 is higher than the upper surface of the fixing portion 511 . There is an interval space between the two first installation parts 720, the fixed part 511 is connected to the lower surface of the first installation part 720, and the transition part 512 arranged higher than the fixed part 511 can reduce the distance between the two first installation parts 720. Fill in the space.

Further, the centrifugal slider 300 is provided with a recessed notch 311 on the edge facing the central axis of the flange 700, when the centrifugal slider 300 is located close to the central axis of the flange 700, that is, the centrifugal slider 300 is not subject to centrifugal force Function, when the valve plug 200 is located at the position of blocking the drain port 101 , the mounting bracket 500 is matched with the first mounting portion 720 of the flange 700 and arranged in the notch 311 .

In the above solution, after the installation bracket 500 is connected and fixed to the first installation part 720 , a protrusion structure of a certain size is formed inside the installation opening 710 . When the centrifugal slider 300 is not subjected to centrifugal force, it is located inside the installation opening 710 as a whole, and its edge facing the central axis of the flange 700 is close to the second edge 712 of the installation opening 710 . The setting of the notch 311 can avoid the protruding structure formed by the installation bracket 500 and the first installation part 720 inside the installation opening 710, so that the centrifugal slider 300 can be installed on a plane flush with the flange 700 without the need for high Installing at or below the flange plate 700 has the effect of reducing the height of the inner barrel flange assembly in the longitudinal direction.

For the pulsator washing machine, limited by the highest speed it can reach, in order to provide enough centrifugal force to open the drain port 101 through the centrifugal slider 300, it is necessary to increase the quality of the centrifugal slider 300, that is, a larger volume is required. Centrifugal slider 300. In this embodiment, the installation opening 710 has a certain length extending along the circumferential direction of the flange 700, and the centrifugal slider 300 is a plate-shaped structure, and has an outer profile matching the installation opening 710. By adding the installation opening 710 and the centrifugal slider 300 The extension length along the circumferential direction of the flange 700 can effectively increase the mass of the centrifugal slider 300 .

In this embodiment, the central area 751 of the lower surface of the flange 700 is concave, and the central area 751 is connected to the outer peripheral area 752 of the lower surface of the flange 700 through an inclined transition surface 753 .

The second edge 712 of the installation opening 710 is located inside the central area 751 , and the end of the first edge 711 away from the outer periphery of the flange 700 is located in the outer peripheral area 752 . Both the first edge 711 and the second edge 712 are connected by rounded corners 713 .

The lower surface of the flange 700 outside the rounded corner 713 is flush with the central region 751 of the lower surface of the flange 700 , and a vertical section 754 is formed on the extension line of the first edge 711 away from the periphery of the flange 700 .

The flange plate 700 of this embodiment has a mounting opening 710 formed with a partially recessed edge to provide space for the installation of the centrifugal drainage device. At the same time, a first mounting portion 720 protruding to the inside of the mounting opening 710 is provided for the centrifugal drainage device. The mounting bracket 500 is connected to realize the fixing of the centrifugal drainage device and the flange 700 . The flange plate 700 and the centrifugal drainage device can be pre-assembled to form an inner barrel flange assembly, and then installed in the washing machine as a whole, and the assembly process is simple. Through the modification of the structure of the flange 700, the centrifugal drainage device is integrated on the flange 700, which has a compact structure and a small overall volume, which can reduce the occupation of the space under the inner tub and facilitate the expansion of the inner tub.

Embodiment Four

As shown in FIGS. 11 to 19 , the washing machine described in this embodiment includes an inner tub and a centrifugal drainage device, and a drain port 101 is provided at the bottom 100 of the inner tub. The centrifugal drainage device includes:

Mounting bracket 500,

The valve plug 200 is installed on the mounting bracket 500 so as to be relatively movable, and blocks the drain outlet 101 during the washing/rinsing process so that the inner tub can hold water independently;

The centrifugal slider 300 slides relative to the bucket bottom 100 of the inner bucket under the action of centrifugal force;

The reversing transmission mechanism connects the valve plug 200 and the centrifugal slider 300, and is used to convert the radial sliding of the centrifugal slider 300 along the barrel bottom 100 to drive the valve plug 200 to move in a direction parallel to the axis of the inner barrel, thereby opening the drain 101 to drain water.

In this embodiment, no dehydration holes are provided on the wall of the inner tub at least in the area lower than the highest water level of the washing machine. During the washing/rinsing process, the valve plug 200 is used to block the drain port 101 to form a closed inner tub, thereby realizing the washing/rinsing process. The inner barrel holds water independently. The washing machine may not be provided with an outer tub, but only a water collecting device is provided under the inner tub, and the height of the upper edge of the water collecting device is lower than the height of the mouth of the inner tub, thereby realizing the capacity expansion of the inner tub. At the same time, the problem of easy accumulation of dirt between the inner barrel and the outer barrel and difficult cleaning can be avoided, and the purpose of saving washing water consumption can also be achieved.

In this embodiment, the mounting bracket 500 includes:

The base 510 is connected with the barrel bottom 100 of the inner barrel;

The connecting frame 520 connects the base 510 and the valve plug 200. The vertical projection of the extending direction of the connecting frame 520 on the plane of the bucket bottom 100 coincides with the vertical projection of the extending direction of the reversing transmission mechanism on the plane of the bucket bottom 100.

In the above solution, the centrifugal drainage device is installed on the bottom 100 of the inner bucket, and the valve plug 200 cooperates with the water outlet 101 to realize the blocking and opening of the water outlet 101 . The connecting frame 520 used to connect the valve plug 200 in the installation bracket 500 and the reversing transmission mechanism connecting the valve plug 200 and the centrifugal slider 300 both have a part located below the drain port 101 . Through the structural design of the centrifugal drainage device, the extension directions of the connecting frame 520 of the mounting bracket 500 and the reversing transmission mechanism have coincident vertical projections on the plane where the bucket bottom 100 is located, specifically within the range of the drain outlet 101, The occupancy of the area below the drain port 101 can be reduced, thereby avoiding the situation that the drain port 101 is blocked in a large area and affects drainage efficiency.

On the other hand, the washing machine drain may carry a large amount of lint, which may be caught and left anywhere the drain water flows. The connecting frame 520 coincides with the vertical projection of the extension direction of the reversing transmission mechanism on the plane where the bucket bottom 100 is located, which can also reduce the area of the centrifugal drainage device exposed to the drainage water flow, thereby reducing the hanging of the shavings carried in the drainage in the centrifugal drainage. The possibility on the device reduces the hooking residue of lint, avoids the reduction of drainage efficiency caused by hooking lint, or prevents the centrifugal drainage device from closing the inner barrel, resulting in water leakage.

In this embodiment, the reversing transmission mechanism specifically includes:

The connecting rod 420 is arranged under the inner barrel, and the left end is connected to the centrifugal slider 300, and moves with the centrifugal slider 300;

Reversing rod 410, one end is hinged with the right end of connecting rod 420, driven by connecting rod 420 to move in the same direction as centrifugal slider 300, the other end of reversing rod 410 is hinged with valve plug 200, driving valve plug 200 along the direction parallel to the inner barrel Axis direction movement.

The vertical projection of the extension direction of the connecting rod 420 on the plane of the bucket bottom 100 coincides with the vertical projection of the extension direction of the connecting frame 520 on the plane of the bucket bottom 100 .

In a preferred solution of this embodiment, the connecting rod 420 is arranged along the radial extension of the barrel bottom 100 . Since the centrifugal slider 300 slides radially along the barrel bottom 100 , that is, the extension direction of the connecting rod 420 is parallel to the sliding direction of the centrifugal slider 300 . The above method can ensure that the force applied by the connecting rod 420 to the reversing rod 410 does not have a component along the circumference of the barrel bottom 100, thereby reducing the component of the force acting on the valve plug 200 in the horizontal direction, and reducing the force of the valve plug 200. Frictional resistance encountered when moving relative to the mounting bracket 500 .

The centrifugal slider 300 slides radially from inside to outside along the bucket bottom 100 under the action of centrifugal force, and the connecting rod 420 drives one end of the reversing rod 410 to move outward synchronously with the centrifugal slider 300 . The other end of the reversing rod 410 swings around its end hinged to the connecting rod 420 , thereby driving the valve plug 200 to move in the mounting bracket 500 in a direction parallel to the axis of the inner barrel.

In a further solution of this embodiment, the connecting frame 520 includes:

The guide part 521 is used for installing the valve plug 200;

The connecting part 522 is located below the drain port 101 and connects the base 510 and the guide part 521. The vertical projection of the extending direction of the connecting part 522 on the plane where the bucket bottom 100 is located is the vertical projection of the extending direction of the connecting rod 420 on the plane where the bucket bottom 100 is located. Vertical projection coincides.

Further, one end of the connecting rod 420 is connected to the centrifugal slider 300, and extends from the outside to the inside along the radial direction of the barrel bottom 100 until it is hinged with the reversing rod 410, so that the distance between the centrifugal slider 300 and the axis of the inner barrel is greater than that of the valve plug. The distance between 200 and the axis of the inner barrel, that is, the centrifugal slider 300 has a larger radius of rotation, thereby providing greater centrifugal force. The transmission between the centrifugal slider 300 and the valve plug 200 can be realized by connecting the centrifugal slider 300 and the reversing rod 410 through the connecting rod 420 radially extending along the barrel bottom 100 .

In this embodiment, the connecting portion 522 is located between the connecting rod 420 and the bottom 100 of the inner barrel in the vertical direction, and the connecting rod 420 and the connecting portion 522 extend in the same direction, thereby forming a structure overlapping up and down to reduce its impact on the drain outlet. The bottom of 101 is simple in structure for the blocking of drainage water flow.

In a preferred solution of this embodiment, the base 510 is connected to the part of the bucket bottom 100 located on the outer periphery of the water outlet 101 , and the guide part 521 is located inside the water outlet 101 or below the water outlet 101 . The part of the bucket bottom 100 located on the outer periphery of the water outlet 101 protrudes downward from the bucket bottom 100 , and the upper surface of the connecting portion 522 is a concave curved surface whose height gradually decreases from both ends to the middle.

In this embodiment, the valve plug 200 is arranged inside the inner bucket, and seals the water outlet 101 on the bottom 100 of the bucket from top to bottom. Make the bucket bottom 100 around the drain port 101 partially form a tapered surface whose diameter gradually decreases from top to bottom. When the valve plug 200 seals the drain port 101, the tapered surface structure can better cooperate with the valve plug 200, providing more reliable Sealing effect.

Due to the location of the base 510 and the guide part 521, the connecting part 522 extends from the outer periphery of the drain port 101 to the center of the drain port 101, and the middle part of the connecting part 522 passes through the downwardly protruding tapered surface structure on the bucket bottom 100. your region. The upper surface of the connecting part 522 is set as a concave curved surface whose height gradually decreases from both ends to the middle part, which can effectively avoid the above-mentioned raised conical surface structure, so that the mounting bracket 500 can be installed closer to the bottom of the barrel 100, so that the bottom of the barrel 100 can be connected with the barrel bottom 100. The installation structure of the centrifugal drainage device is more compact, which reduces the occupation of the space under the inner barrel.

Further preferably, a groove 5221 extending in the same direction as the connecting rod 420 is provided on the lower surface of the connecting portion 522 , and the connecting rod 420 is partially disposed in the groove 5221 . The above arrangement can make the connecting part 522 and the connecting rod 420 closer in the vertical direction, design the overall structure of the centrifugal drainage device more compactly, reduce its overall volume, and further reduce the occupation of the space under the inner tub.

In a further solution of this embodiment, the base 510 includes:

Two fixing parts 511 are arranged at intervals on the outer circumference of the drain port 101, and are connected to the bottom 100 of the inner barrel;

The transition part 512 is used for connecting the two fixing parts 511 .

Preferably, a mounting hole 5111 is defined on the fixing portion 511 .

In this embodiment, the mounting bracket 500 is connected to the bottom 100 of the inner barrel through the fixing part 511. During assembly, the mounting bracket 500 can be fixed on the bottom 100 of the inner barrel by passing through the mounting holes 5111 on the fixing part 511 . The guiding portion 521 is suspended relative to the fixing portion 511 . There are two fixing parts 511 , which are preferably symmetrical with respect to the guiding part 521 , so that the fixing effect on the mounting bracket 500 is better and the structure is more firm.

In a further solution of this embodiment, the drain port 101 is circular, and the side of the transition portion 512 facing the guide portion 521 has an arc-shaped edge with the same center as the drain port 101, and the corresponding radius of the arc-shaped edge is larger than that of the drain port. 101 radius. The arrangement of the above-mentioned arc-shaped edge can avoid the transition part 512 to the area below the drain port 101, prevent the transition part 512 from blocking the drainage water flow, and avoid affecting the drainage efficiency.

In the specific solution of this embodiment, the guide part 521 has a hollow slideway, and the valve plug 200 includes:

Sealing cover 201, arranged inside the inner tub, for blocking/opening the drain 101;

The lower end of the support rod 202 is slidably arranged in the hollow slideway of the guide part 521 , and is hinged to the reversing rod 410 , and the upper end protrudes from the guide part 521 and is fixedly connected with the sealing cover 201 .

Since the sealing cover 201 is located inside the inner bucket, it blocks the drain 101 from top to bottom. When the inner bucket is filled with water, the water pressure acts on the upper surface of the sealing cover 201 to provide auxiliary sealing force, and the sealing effect is better. The guide part 521 can limit the movement of the support rod 202 in the horizontal direction, so that the horizontal movement of the centrifugal slider 300 can be effectively converted into the vertical movement of the valve plug 200 through the reversing rod 410 .

In this embodiment, the lower end of the reversing rod 410 is located below the drain port 101, and moves radially along the barrel bottom 100 driven by the connecting rod 420. 202, the support rod 202 drives the sealing cover 201 to move up and down to open/block the drain port 101.

In a further solution of this embodiment, the centrifugal slider 300 is a plate-like structure perpendicular to the axis of the inner bucket, and the centrifugal slider 300 of the plate-like structure extends along the circumferential direction of the bucket bottom 100 and has a certain length.

Preferably, the centrifugal slider 300 is disposed near the outer periphery of the barrel bottom 100 .

For the pulsator washing machine, limited by the highest speed it can reach, in order to provide enough centrifugal force to open the drain 101 through the centrifugal slider 300, it is necessary to increase the quality of the centrifugal slider 300, that is, it is necessary to increase the quality of the centrifugal slider 300 in the centrifugal drainage device. A centrifugal slider 300 with a larger volume is adopted in the present invention.

In the solution of this embodiment, the centrifugal slider 300 is set as a plate structure, which can be installed as closely as possible to the bottom 100 of the inner barrel, so as to reduce the occupation of the space under the inner barrel. At the same time, it is possible to increase the tiled area of the centrifugal slider 300, that is, to increase its extension length along the circumference of the bucket bottom 100 to increase the volume, thereby making it have a greater quality, so as to improve the centrifugal force that can be provided, and There is no need to additionally occupy the space under the inner bucket in order to increase the quality of the centrifugal slider 300 . Setting the centrifugal slider 300 close to the outer circumference of the barrel bottom 100 can increase its radius of rotation on the one hand, and provide a larger installation space on the other hand, facilitating the increase of the tiled area of the centrifugal slider 300 .

Further, a concave notch 311 is provided on the edge of the plate-shaped centrifugal slider 300 facing the axis of the inner bucket. When the centrifugal slider 300 is located near the axis of the inner bucket, that is, the centrifugal slider 300 is not subjected to centrifugal force, so that the valve When the plug 200 is at the position of blocking the drain outlet 101 , the installation bracket 500 is matched and arranged in the notch 311 .

In the above solution, the area occupied by the mounting bracket 500 below the bucket bottom 100 overlaps with the area occupied by the centrifugal slider 300 below the bucket bottom 100 when the centrifugal slider 300 is located close to the axis of the inner bucket. The setting of the gap 311 can avoid the mounting bracket 500 fixed on the lower surface of the barrel bottom 100, so that the centrifugal slider 300 can be installed as closely as possible to the lower surface of the barrel bottom 100 without being lower than the mounting bracket 500, thereby reducing the centrifugal force. The vertical height of the space occupied by the drainage device under the inner bucket is more compact in structure.

In this embodiment, the inner tub of the washing machine can hold water independently during the washing/rinsing process, and the drainage function of the inner tub is realized through the centrifugal drainage device installed at the bottom 100 of the inner tub. Through the structural design of the centrifugal drainage device, the part located below the drain port 101, that is, the connecting part 522 of the mounting bracket 500 and the connecting rod 420 in the reversing transmission mechanism, have their own extension directions on the plane where the bucket bottom 100 is located. The coincident vertical projection can reduce the occupation of the area below the drain outlet 101, avoid blocking the drainage flow, and improve drainage efficiency. At the same time, the connecting portion 522 and the connecting rod 420 form an overlapping structure up and down, which also reduces the area exposed to the drainage water flow, thereby reducing the hooking of wire scraps. On the other hand, the structures of the centrifugal slider 300, the reversing transmission mechanism and the mounting bracket 500 cooperate with each other, so that they can be installed more compactly on the bottom 100 of the inner tub, reducing the occupation of the space below the inner tub, and facilitating the expansion of the inner tub design.

Embodiment five

As shown in Figures 11 to 19, this embodiment is a further limitation of the above-mentioned fourth embodiment. A slideway 600 is fixedly installed on the bottom 100 of the inner tub. In the guide groove 601 , a sliding part 321 is provided on the centrifugal slider 300 , and the sliding part 321 is slidably inserted in the guide groove 601 .

In the above solution, the guide groove 601 on the slideway 600 cooperates with the sliding part 321 on the centrifugal slider 300 to guide the sliding direction of the centrifugal slider 300 to ensure that when the centrifugal drainage device rotates with the inner tub, the centrifugal slider 300 can Steadily slide outward along the radial direction of the barrel bottom 100, so as to better drive the reversing rod 410 upward to push the valve plug 200 to drain water.

Specifically, two slideways 600 are provided, and the guide grooves 601 on the two slideways 600 are parallel to each other, and the centrifugal slider 300 is installed between the two slideways 600 . By arranging two slideways 600 , which cooperate with the two ends of the centrifugal slider 300 extending along the circumferential direction of the barrel bottom 100 to guide respectively, the guiding effect on the centrifugal slider 300 is better.

In a preferred solution of this embodiment, the centrifugal slider 300 includes a centrifugal slider body 310 and a slider 320 fixedly connected to the centrifugal slider body 310 . The sliding part 321 is formed on the sliding part 320 , and the sliding part 320 is slidably installed on the sliding track 600 .

Specifically, in order to provide greater mass to generate greater centrifugal force, the centrifugal block body 310 is made of metal material. If it is directly installed on the slideway 600, the coefficient of friction between the two is relatively large. A large frictional resistance will be generated during sliding, which hinders the sliding of the centrifugal slider 300 and may cause the situation that the drain port 101 cannot be opened.

In this embodiment, sliders 320 are provided at both ends of the centrifugal block body 310 for cooperating with the slideway 600 to slide. The sliding piece 320 is made of materials that can reduce the coefficient of friction. For example, the sliding piece 320 made of plastic can be selected to be fixed on the two ends of the centrifugal block body 310. The friction coefficient between the sliding piece 320 and the slideway 600 is small, which can reduce the friction coefficient. The sliding frictional force suffered by the centrifugal slider 300 is small, so that the centrifugal slider 300 can slide under the action of smaller centrifugal force, and control the opening of the drain port 101 .

In a further solution of this embodiment, an elastic member 610 is installed between the centrifugal slider 300 and the slideway 600, specifically between the slider 320 and the slideway 600, and the elastic member 610 applies a restoring force to the centrifugal slider 300, the described The action direction of the reset force is opposite to the direction in which the centrifugal slider 300 slides under the centrifugal force.

In the above solution, when the inner bucket rotates to a certain speed, the centrifugal slider 300 slides to the left under the action of centrifugal force, and then pushes the valve plug 200 upwards through the connecting rod 420 and the reversing rod 410, and opens the drain port 101 to drain water. When the rotation speed of the inner bucket gradually decreases until it stops, the centrifugal force gradually decreases. When the centrifugal force is smaller than the force applied to the centrifugal slider 300 by the elastic member 610, the elastic member 610 pushes the centrifugal slider 300 to move to the right and reset, thereby pulling down the valve. The plug 200 re-blocks the drain opening 101.

In this embodiment, the centrifugal slider 300 is provided with a first stop portion 322 , and the slideway 600 is provided with a second stop portion 602 opposite to and spaced from the first stop portion 322 . Two ends of the elastic member 610 abut against opposite surfaces of the first abutting portion 322 and the second abutting portion 602 respectively. When the centrifugal slider 300 slides outward along the radial direction of the barrel bottom 100, the first stop portion 322 and the second stop portion 602 approach each other, thereby compressing the elastic member 610 to generate a force opposite to the centrifugal force.

The elastic member 610 in this embodiment is a spring, and the elastic member 610 can also be any elastic device that can provide elastic force when compressed.

In the above solution, through the design of the distance between the first stopper 322 and the second stopper 602, and the initial length of the elastic member 610, the valve plug 200 is located at the position of blocking the drain port 101, that is, centrifugal When the slider 300 is located close to the center of the barrel bottom 100, the elastic member 610 is in a compressed state and has a certain pre-compression force. The elastic member 610 pushes the first stop portion 322 to the right through the pre-compression force, so that the centrifugal slider 300 exerts a downward pulling force on the valve plug 200 through the connecting rod 420 and the reversing rod 410, and assists the valve plug 200 to drain water. The sealing of the port 101 further strengthens the sealing effect.

In a further solution of this embodiment, the upper and lower edges of the centrifugal slider 300 protrude toward the slideway 600 toward the surface of the slideway 600 to form a first covering part 324 and a second covering part 325 respectively, and the first covering part 324 and the second covering part 324 A clamping groove 326 is formed between the two covering parts 325 , and the elastic member 610 is placed inside the clamping groove 326 .

The arrangement of the first covering part 324 and the second covering part 325 shields the elastic part 610 from the upper and lower sides of the elastic part 610, and can avoid the contact of the drain water flow with the elastic part 610 to a certain extent when the washing machine is draining.

Especially for the elastic member 610 made of metal, it is possible to prevent the elastic member 610 from being corroded in a humid environment for a long time, resulting in its elastic failure and being unable to be used for the reset of the centrifugal slider 300 . On the other hand, it is also possible to prevent the elastic member 610 from being hooked on the thread scraps, resulting in elastic failure caused by the inability of the elastic member 610 to produce effective deformation. Because the above-mentioned structure protects the elastic member 610 inside the centrifugal drainage device from losing its elasticity easily, it ensures that the centrifugal drainage device is effective for a long time, thereby prolonging the service life of the washing machine.

Further, the slideway 600 can also be used, or a protruding structure can be provided at a corresponding position on the barrel bottom 100 to cover the opening of the clamping groove 326, so that the outer peripheral side of the elastic member 610 is completely covered, further reducing the The possibility of the drainage water flow contacting the elastic member 610 also ensures that the elastic member 610 will not escape from the clamping groove 326 .

In this embodiment, both ends of the elastic member 610 respectively abut against the first abutting portion 322 on the centrifugal slider 300 and the second abutting portion 602 on the slideway 600 . Specifically, one end of the clamping groove 326 is closed to form the first stop portion 322, the other end of the clamping groove 326 is open, and the second stop portion 602 on the slideway 600 blocks the open end of the clamping groove 326, Therefore, the elastic member 610 is located inside the clamping groove 326 , and its two ends respectively abut against the first abutting portion 322 and the second abutting portion 602 .

Further, the slideway 600 has a slideway fixing part 603 connected with the bucket bottom 100, holes are opened on the slideway fixing part 603, and screws pass through the slideway fixing part 603 to realize the connection between the slideway fixing part 603 and the inner bucket bottom 100. fixed. By adjusting the thickness of the slideway fixing portion 603 , it can cover the opening of the clamping groove 326 , so as to completely cover the outer peripheral side of the elastic member 610 .

The lower edge of the slideway fixing part 603 protrudes toward the centrifugal slider 300 toward the centrifugal slider 300 to form a support part 604, and the second stopper part 602 protrudes from the surface of the slideway fixing part 603 facing the centrifugal slider 300, and the second The lower surface of the stop portion 602 is spaced apart from the upper surface of the supporting portion 604 , and a guide groove 601 is formed between them, which cooperates with the sliding portion 321 on the centrifugal slider 300 to guide the sliding of the centrifugal slider 300 .

In the centrifugal slider 300 of this embodiment, the sliding part 321 and the second covering part 325 are the same structure arranged on the centrifugal slider 300. On the one hand, it can be used to cover the lower surface of the elastic member 610, cooperate with the first covering part 324, and reduce the contact between the elastic member 610 and the drainage water flow. Realizing two functions and effects through the same structure can simplify the structure of the centrifugal slider 300 and make the overall structure of the centrifugal drainage device more compact.

Specifically, the centrifugal block body 310 in the centrifugal slider 300 is only used to provide a mass capable of generating sufficient centrifugal force, and the matching installation structures of the centrifugal slider 300 and the slideway 600 are formed on the slider 320 . In detail, the centrifugal block body 310 extends a certain length along the circumferential direction of the bucket bottom 100, the sliders 320 are arranged at both ends of the centrifugal block body 310 in the longitudinal direction, the first covering part 324, the second covering part 325 (that is, the sliding part 321 ) and the first stop portion 322 are formed by the sliding member 320.

In a further solution of this embodiment, the lower surface of the end of the sliding part 321 close to the axis of the inner tub partially protrudes to form a limiting boss 323, and the limiting boss 323 is opposite to the end of the supporting part 604 near the axis of the inner barrel.

In this embodiment, the bottom 100 of the inner tub is provided with a slideway 600 that guides the centrifugal slider 300. Through the cooperation of the sliding part 321 on the centrifugal slider 300 and the guide groove 601 on the slideway 600, the centrifugal slideway can be ensured. The block 300 slides radially along the tub bottom 100 stably without deviating from the sliding path. An elastic member 610 is arranged between the centrifugal slider 300 and the slideway 600 to make the centrifugal slider 300 reset automatically when no centrifugal force is applied, so as to recover the state where the water outlet 101 of the inner tub is blocked by the valve plug 200 . By setting the first covering part 324 and the second covering part 325 on the centrifugal slider 300 to shield the upper and lower sides of the elastic member 610, it is possible to protect the elastic member 610 from being easily connected with the drainage water, and to prevent the elastic member 610 from being corroded or hooked. The elastic failure caused by hanging thread shavings can ensure the long-term effectiveness of the centrifugal drainage device and prolong the service life of the washing machine.

The above description is only a preferred embodiment of the present invention, and does 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. In 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

A flange assembly for an inner tub, comprising a flange and a centrifugal drainage device, characterized in that a mounting portion is provided on the flange, and the centrifugal drainage device includes:

The centrifugal slider is installed on the installation part and slides relative to the flange under the action of centrifugal force;

The valve plug moves relative to the flange under the drive of the centrifugal slider;

The elastic member has a certain extension length along the sliding direction of the centrifugal slider, and applies a reset force to the centrifugal slider opposite to the sliding direction of the centrifugal slider under the action of centrifugal force, and its outer peripheral side is completely covered by the centrifugal slider and/or the mounting part.
The flange assembly of the inner barrel according to claim 1, wherein the centrifugal slider has a surface opposite to the installation part and spaced apart, and the elastic member is installed on the surface of the centrifugal slider opposite to the installation part between;

A first covering part is formed on the centrifugal slider and/or the mounting part, and is located above the elastic member;

and a second covering part located under the elastic member;

The first covering part, the second covering part, and the surface of the centrifugal slider opposite to the mounting part completely cover the outer peripheral side of the elastic member.
The flange assembly of the inner barrel according to claim 2, wherein the surface of the centrifugal slider facing the installation part partially protrudes toward the installation part to form a first covering part and a second covering part; the first covering part A clamping groove with an opening is formed between the second covering part, the elastic member is placed inside the clamping groove, and the opening of the clamping groove is blocked by the installation part;

Preferably, the depth of the clamping groove is gradually deepened from the two sides close to the first covering part and the second covering part to the middle part, forming a concave curved surface connecting the first covering part and the second covering part.
The flange assembly of the inner barrel according to claim 3, wherein the mounting portion on the flange is at least partially located inside the clamping groove.
The flange assembly of the inner barrel according to any one of claims 1-4, characterized in that, the edge of the flange is partially recessed to form an installation opening, and the centrifugal slider is matched and installed in the installation opening, so that The part of the flange located on the periphery of the installation port forms the installation part;

Preferably, the installation opening has a certain length extending along the circumferential direction of the flange, and there are two installation parts, which are respectively located outside the two ends of the length extension direction of the installation opening; the opposite edges of the two installation parts are parallel to each other.
The inner barrel flange assembly according to claim 5, wherein a slideway is fixedly installed on the installation part, a first stop part is provided on the centrifugal slider, and the slideway has a structure corresponding to the first stopper. The abutting portion is opposite to the second abutting portion arranged at intervals; the two ends of the elastic member respectively abut against the opposite surfaces of the first abutting portion and the second abutting portion.
The flange assembly of the inner barrel according to claim 6, wherein the centrifugal slider is provided with a concave clamping groove on the surface facing the installation part, and the clamping groove is extended along the length direction of the elastic member, and the The elastic member is arranged in the clamping groove;

One end of the clamping groove is closed to form a first stop portion, and the other end of the clamping groove is opened; the second stop portion on the slideway blocks the open end of the clamping groove.
The flange assembly of the inner barrel according to claim 6, wherein a guide groove is provided on the slideway, a sliding part extending along the sliding direction of the centrifugal slider is provided on the centrifugal slider, and the sliding part can slide set in the guide groove;

Preferably, the slideway has a slideway fixing part connected to the lower surface of the installation part, and the lower edge of the slideway fixing part toward the inner side of the installation opening protrudes toward the inside of the installation opening to form a support part;

The second stop part protrudes from the surface of the slideway fixing part facing the inside of the installation opening, the lower surface of the second stop part is spaced apart from the upper surface of the support part, and the guide groove is formed between them.
The flange assembly of the inner tub according to claim 8, wherein the lower surface of one end of the sliding part close to the central axis of the flange partially protrudes to form a limiting boss, and the limiting boss and the supporting part are close to the flange. One end of the central axis of the blue plate is oppositely arranged.
A washing machine, comprising an inner tub, the inner tub is provided with a drain port, and it is characterized in that it also includes the inner tub flange assembly according to any one of claims 1-9, and the flange is coaxial with the bottom of the inner tub Setting, fixedly installed on the barrel bottom of the inner barrel;

During the washing/rinsing process, under the action of the restoring force of the elastic member, the centrifugal slider drives the valve plug to block the drain outlet, so that the inner tub can hold water independently during the washing/rinsing process; during the drainage process, the centrifugal slider overcomes the elastic member under the action of centrifugal force The reset force moves outward along the radial direction of the flange, driving the valve plug to open the drain port for drainage.
A washing machine, comprising an inner tub and a centrifugal drainage device, the bottom of the inner tub is provided with a drain port, characterized in that the centrifugal drainage device includes:

Mounting brackets,

The valve plug can be installed on the mounting bracket for relative movement, and seals the drain outlet during the washing/rinsing process, so that the inner tub can hold water independently;

The centrifugal slider slides relative to the bottom of the inner barrel under the action of centrifugal force;

The reversing transmission mechanism is connected with the valve plug and the centrifugal slider, and is used to convert the radial sliding of the centrifugal slider along the bottom of the barrel to drive the valve plug to move in a direction parallel to the axis of the inner barrel to open the drain;

The mounting bracket includes

The base is connected with the barrel bottom of the inner barrel;

The connecting frame connects the base and the valve plug, and the vertical projection of the extension direction of the connecting frame on the plane where the bottom of the barrel is coincides with the vertical projection of the extending direction of the reversing transmission mechanism on the plane where the bottom of the barrel is.
The washing machine according to claim 11, wherein the reversing transmission mechanism comprises:

The connecting rod is arranged under the inner bucket, one end is connected to the centrifugal slider, and moves with the centrifugal slider;

One end of the reversing rod is hinged to the other end of the connecting rod, and is driven by the connecting rod to move in the same direction as the centrifugal slider. The other end of the reversing rod is hinged to the valve plug to drive the valve plug to move in a direction parallel to the axis of the inner barrel ;

The vertical projection of the extension direction of the connecting rod on the plane where the bucket bottom is located coincides with the vertical projection of the extension direction of the connecting frame on the plane where the bucket bottom is located;

Preferably, the connecting rod is arranged along the radial extension of the barrel bottom.
The washing machine according to claim 12, wherein the connecting frame comprises:

guide part for installing the valve plug;

The connecting part is located below the drain port and connects the base and the guide part. The vertical projection of the extending direction of the connecting part on the plane of the bucket bottom coincides with the vertical projection of the extending direction of the connecting rod on the plane of the bucket bottom.
The washing machine according to claim 13, wherein the connecting portion is located between the connecting rod and the bottom of the inner tub in the vertical direction;

Preferably, the base is connected to the part of the bottom of the bucket located at the outer circumference of the drain, the guide part is located inside or below the drain; the part of the bottom of the bucket located at the outer circumference of the drain protrudes below the bottom of the bucket, the The upper surface of the connecting part is a concave curved surface whose height gradually decreases from both ends to the middle part.
The washing machine of claim 14, wherein the base comprises:

Two fixed parts are arranged at intervals on the outer circumference of the drain port, and are connected with the bottom of the inner barrel;

a transition part, used to connect the two fixed parts;

Both ends of the connecting portion are respectively connected to the transition portion and the guide portion;

Preferably, an installation hole is provided on the fixing part.
The washing machine according to claim 15, wherein the drain opening is circular, and the side of the transition portion facing the guide portion has an arc-shaped edge concentric with the drain opening, and the arc-shaped The corresponding radius of the edge is larger than the radius of the drain.
The washing machine according to any one of claims 13-16, wherein the guide part has a hollow slideway, and the valve plug includes:

The sealing cover is arranged inside the inner barrel and is used to block/open the drain;

One end of the support rod is relatively movable and arranged in the hollow slideway of the guide part, and is hinged with the reversing rod, and the other end extends out of the guide part and is fixedly connected with the sealing cover.
The washing machine according to claim 17, characterized in that, one end of the reversing rod is located below the drain outlet and moves radially along the bottom of the bucket driven by the connecting rod, and the other end of the reversing rod extends into The inside of the inner barrel is connected with the support rod, and the seal cover is driven to move up and down by the support rod to open/block the drain outlet.
The washing machine according to any one of claims 11-18, characterized in that, the centrifugal slider is a plate-shaped structure perpendicular to the axis of the inner tub, and the centrifugal slider of the plate-shaped structure extends along the circumferential direction of the tub bottom with a a certain length;

Preferably, the centrifugal slider is arranged close to the outer periphery of the barrel bottom.
The washing machine according to any one of claims 11-19, characterized in that a slideway is fixedly installed on the bottom of the inner tub, and a guide groove parallel to the sliding direction of the centrifugal slider is provided on the slideway, and the A sliding part is arranged on the centrifugal slider, and the sliding part is slidably inserted in the guide groove;

Preferably, an elastic member is installed between the centrifugal slider and the slideway, and the elastic member applies a reset force to the centrifugal slider, and the direction of the reset force is opposite to the direction in which the centrifugal slider slides under the action of centrifugal force;

Preferably, two slideways are provided, and the guide grooves on the two slideways are parallel to each other, and the centrifugal slide block is installed between the two slideways.