CN112779717A

CN112779717A - Clothes lifting device for washing machine and roller washing machine

Info

Publication number: CN112779717A
Application number: CN201911080858.2A
Authority: CN
Inventors: 赵志强; 吕佩师; 许升; 李以民
Original assignee: Qingdao Haier Drum Washing Machine Co Ltd; Haier Smart Home Co Ltd
Current assignee: Qingdao Haier Drum Washing Machine Co Ltd; Haier Smart Home Co Ltd
Priority date: 2019-11-07
Filing date: 2019-11-07
Publication date: 2021-05-11

Abstract

The invention provides a clothes lifting device for a washing machine and a roller washing machine, wherein the clothes lifting device for the washing machine comprises: a body having a receiving chamber therein; the water inlet is arranged on the body and communicated with the accommodating chamber; the centrifugal drainage component is arranged in the accommodating chamber, the initial state of the centrifugal drainage component is a closed state, and the centrifugal drainage component can be opened for drainage under the action of centrifugal force; the centrifugal drainage assembly comprises a sealing plunger capable of reciprocating and an elastic piece for elastic resetting of the sealing plunger, wherein an elastic piece sheath is arranged on the elastic piece and hermetically covers the elastic piece. In the reciprocating motion process of the centrifugal drainage assembly in the closed state and the drainage state, the elastic piece is hermetically coated by the elastic piece sheath, so that thread scraps are prevented from being hung, and the working stability of the centrifugal drainage assembly is ensured.

Description

Clothes lifting device for washing machine and roller washing machine

Technical Field

The invention relates to the technical field of washing equipment, in particular to a clothes lifting device for a washing machine and a drum washing machine.

Background

The washing machine is used as a household appliance which is widely used in daily life of people, helps people get rid of the trouble of washing clothes, and brings great convenience to people. However, the washing machine has certain disadvantages, such as long time consumption, large water consumption, etc., and with the development of society, water resources become more and more important as an important natural resource, and the awareness of water saving of people is also improved, and how to realize the water saving function of the washing machine is very important.

In order to solve the water-saving problem of the washing machine, some patents are also proposed at present, for example, patent No. 201410215346.3, which is named as a Chinese invention patent of a drum washing machine, and the invention relates to a drum washing machine, which comprises a box body, wherein an inner cylinder and an outer cylinder are arranged in the box body, a door seal is arranged between the outer cylinder and the box body, the inner cylinder is connected with a driving device, the inner cylinder is a non-porous inner cylinder, the inner cylinder is a conical cylinder with a small diameter at the cylinder bottom and a large diameter at the cylinder opening, the cylinder opening of the inner cylinder is inwards folded in an arc shape, a water inlet guide pipe is arranged on the door seal, one end of the water inlet guide pipe is connected with a washing water rapid heating device, the other end of the water inlet guide pipe penetrates through the door seal. According to the technical scheme, the inner cylinder is a non-porous inner cylinder, water is fed into the inner cylinder through the water inlet guide pipe arranged on the door seal, and water is drained in the dehydration process through the shape of the inner cylinder, so that water can be prevented from being stored between the inner cylinder and the outer cylinder, and the water consumption for washing is greatly saved.

The invention provides a drum washing machine with a hole-free inner barrel, the water inlet mode of the drum washing machine disclosed by the patent is realized through a door seal, the door seal mainly has the function of realizing the sealing of the barrel opening of the outer barrel of the washing machine, and the sealing effect of the door seal is easily influenced and is not easy to realize due to the arrangement of a water inlet guide pipe on the door seal; in addition, the drainage of this patent mainly combines drive arrangement's high-speed drive to realize through the tubular structure, and the tubular structure is complicated, and drainage effect, inner tube closed effect can not guarantee, and practical application will have a great deal of problems.

In view of the above, the present invention is particularly proposed.

Disclosure of Invention

In order to solve the above problems, a first object of the present invention is to provide a laundry lifting device for a washing machine, which specifically adopts the following technical solutions:

a laundry lifting device for a washing machine, comprising:

a body having a receiving chamber therein;

the water inlet is arranged on the body and communicated with the accommodating chamber;

the centrifugal drainage component is arranged in the accommodating chamber, the initial state of the centrifugal drainage component is a closed state, and the centrifugal drainage component can be opened for drainage under the action of centrifugal force;

the centrifugal drainage assembly comprises a sealing plunger capable of reciprocating and an elastic piece for elastic resetting of the sealing plunger, wherein an elastic piece sheath is arranged on the elastic piece and hermetically covers the elastic piece.

Further, the body includes:

the lifting shell is internally provided with an open cavity;

the lifting base body is detachably arranged at the open end of the open cavity of the lifting shell to form an accommodating chamber;

the plunger seat is arranged on the lifting base body, a plunger through hole for sealing the plunger to penetrate out of the accommodating chamber is formed in the lifting base body, a plunger channel is formed in the plunger seat, and the sealing plunger can be arranged in the plunger channel in a reciprocating mode; the elastic piece and the elastic piece sheath are arranged in the plunger channel, or one end of the elastic piece sheath is connected to the periphery of an outlet of the plunger channel in a sealing mode, and the other end of the elastic piece sheath is connected to the part, extending out of the plunger channel, of the sealing plunger in a sealing mode.

Furthermore, the sealing plunger comprises a sealing column and a sealing plug arranged at one end of the sealing column, the elastic part is a spring, one end of the spring is abutted against the inner wall of the plunger channel, the other end of the spring is abutted against the sealing column, and the sheath of the elastic part is an elastic threaded pipe;

the elastic threaded pipe is arranged in the plunger channel and sleeved outside the spring to coat the whole spring, or one end of the elastic threaded pipe is sleeved on the periphery of an outlet of the plunger channel in a sealing manner, and the other end of the elastic threaded pipe is sleeved on the sealing plug in a sealing manner.

Furthermore, the sealing plug comprises a sealing part fixed at one end of the sealing column, and the elastic piece sheath and the sealing part are integrally formed and extend from the sealing part to the other end of the sealing column to form the elastic corrugated pipe.

Further, one end of the elastic corrugated pipe, which is positioned in the plunger channel, is in sealing contact with the inner wall surface of the plunger channel under the elastic resisting action of the elastic piece.

Further, the plunger seat comprises a plunger hole column penetrating through the plunger through hole and a support arranged at one end, located at the outer part of the accommodating chamber, of the plunger hole column, and the plunger channel penetrates through the plunger hole column.

Further, centrifugal drainage subassembly include the centrifugation piece that produces centrifugal motion under centrifugal force, centrifugation piece includes connecting portion and counter weight portion, counter weight portion is connected to the one end of connecting portion, the other end and the rotatable connection of sealed plunger, the rotatable installation in middle part of connecting portion forms lever structure on the plunger seat.

Further, connecting portion be the connecting rod, counter weight portion be the balancing weight, plunger hole post has the extension that extends towards counter weight portion, the middle part of connecting rod is through the rotatable connection of pivot and extension.

A second object of the present invention is to provide a drum washing machine having the above-mentioned laundry lifting device, specifically:

a drum washing machine having a laundry lifting device for the washing machine, comprising:

an inner barrel;

an inner cylinder door which can be opened/closed and is arranged on the cylinder opening of the inner cylinder;

when the inner drum door is closed, the inner drum door and the inner drum form an independent washing chamber together, and washing water is independently contained when clothes are washed;

the side wall of the inner barrel is provided with a water outlet, the lifting device is arranged on the water outlet on the inner wall of the inner barrel, and the centrifugal drainage component is used for plugging and closing the water outlet.

Furthermore, a fixing hole for fixedly assembling a lifting device is formed in the side wall of the inner cylinder, close to the water drainage port, and the lifting device is fixed on the fixing hole in a sealing mode through a connecting piece.

The clothes lifting device can be arranged on the inner wall of the inner drum of the drum washing machine, and can lift clothes to a certain height along with the rotation of the inner drum and fall down in the washing process. The centrifugal drainage component is integrated in the clothes lifting device, the initial state of the centrifugal drainage component is a closed state, the inner cylinder is kept closed and independently holds washing water, and the centrifugal drainage component can be opened to drain water under the action of centrifugal force, so that the drainage of the drum washing machine with the non-porous inner cylinder is realized.

According to the drum washing machine, the inner drum door is arranged on the opening of the inner drum, the inner drum is designed to be a non-porous drum, the inner drum door and the non-porous drum form an independent washing chamber together, washing water is independently contained when clothes are washed, and washing/rinsing water does not need to be filled between the inner drum and the outer drum, so that the washing water consumption of the washing machine is greatly reduced; the possibility of dirt adhesion between the inner cylinder and the outer cylinder is avoided; the user health and user experience are greatly improved, and water resources are greatly saved.

In order to solve the problem that thread scraps are easily hung on the elastic piece, the centrifugal drainage assembly comprises a sealing plunger capable of reciprocating and an elastic piece used for elastic resetting of the sealing plunger, wherein an elastic piece sheath is arranged on the elastic piece and hermetically wraps the elastic piece. Therefore, in the reciprocating motion process of the centrifugal drainage assembly in the closed state and the drainage state, the elastic piece is hermetically coated by the elastic piece sheath, thread scraps are prevented from being hung, and the working stability of the centrifugal drainage assembly is ensured.

Drawings

FIG. 1 is a schematic diagram of a drum washing machine according to a first embodiment of the present invention;

fig. 2 is a first schematic perspective view of a clothes lifting device for a washing machine according to a first embodiment of the present invention;

fig. 3 is a schematic perspective view of a clothes lifting device for a washing machine according to a first embodiment of the present invention;

fig. 4 is a front view of a laundry lifting device for a washing machine according to a first embodiment of the present invention;

fig. 5 is a sectional view of a laundry lifting device for a washing machine according to a first embodiment of the present invention, taken along the plane a-a of fig. 4;

fig. 6 is a partially enlarged view of fig. 5 of a laundry lifting device for a washing machine according to a first embodiment of the present invention;

fig. 7 is a sectional view of a laundry lifting device for a washing machine according to a first embodiment of the present invention, taken along the plane B-B of fig. 4;

FIG. 8 is a schematic view of a drum washing machine according to a second embodiment of the present invention;

FIG. 9 is a schematic view of a drum washing machine according to a third embodiment of the present invention (first embodiment);

FIG. 10 is a schematic view of a drum washing machine according to a third embodiment of the present invention (second embodiment);

fig. 11 is a schematic view of a drum washing machine according to a third embodiment of the present invention (third embodiment);

FIG. 12 is a schematic view of a drum washing machine according to a fourth embodiment of the present invention;

fig. 13 is a partially enlarged view (pressure-released state) of fig. 12 of the drum washing machine according to the fourth embodiment of the present invention;

fig. 14 is a partially enlarged view (pressurized state) of fig. 12 of the drum washing machine according to the fourth embodiment of the present invention;

FIG. 15 is a schematic view of a drum washing machine according to a fifth embodiment of the present invention;

fig. 16 is an enlarged partial view of fig. 15 (a pressure release state in the first embodiment) of a drum washing machine according to a fifth embodiment of the present invention;

fig. 17 is a partially enlarged view of fig. 15 of a drum washing machine according to a fifth embodiment of the present invention (pressurized state in the first embodiment);

fig. 18 is an enlarged partial view of fig. 15 of a drum washing machine according to a fifth embodiment of the present invention (in a pressure release state according to the second embodiment);

fig. 19 is a partially enlarged view of fig. 15 of a drum washing machine according to a fifth embodiment of the present invention (pressurized state of the second embodiment).

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings, wherein:

as shown in fig. 1 to 19, the present embodiment provides a drum washing machine with a non-porous inner drum front opening structure, which has a simple structure, and can greatly reduce the amount of washing water of the washing machine without filling washing/rinsing water between the inner drum and the outer drum. The possibility of dirt adhesion between the inner cylinder and the outer cylinder is avoided. The user health and user experience are greatly improved, and water resources are greatly saved.

The drum washing machine of the present embodiment has a housing 19, and the housing 19 includes: a top deck 2, a front panel, a back panel and a bottom panel. The bottom plate is provided with feet 9 for supporting the whole washing machine. The outer casing 19 has an outer cylinder 18 inside, and an inner cylinder 17 is coaxially disposed inside the outer cylinder 18. The outer cylinder 18 is mainly used for collecting the drainage of the inner cylinder 17 and the drainage of the inner cylinder 17 by high-speed centrifugal dehydration. The drum 17 rotates, preferably with lifting ribs 43, and is continuously lifted and dropped to beat the laundry, so as to wash the laundry. The inner barrel 17 is of non-porous construction. The outer cylinder 18 has a central mounting hole to which the bearing 12 is fixedly mounted. An inner drum shaft 13, which is fixedly connected to the inner drum 17, passes through the bearing 12 shown and is connected to a drive motor 16. An openable/closable inner cylinder door 6 is installed on a front cylinder opening of the inner cylinder 17, thereby realizing that the inner cylinder 17 is of a sealed cabin structure.

The housing 19 of this embodiment is provided with an openable/closable door 5.

Example one

As shown in fig. 1 to 7, a laundry lifting device for a washing machine and a drum washing machine according to the present embodiment are provided.

A laundry lifting device for a washing machine, comprising:

a body having a receiving chamber therein;

and the centrifugal drainage component is arranged in the accommodating chamber, the initial state of the centrifugal drainage component is a closed state, and the centrifugal drainage component can be opened for drainage under the action of centrifugal force.

The clothes lifting device of the embodiment can be installed on the inner wall of the inner barrel of the drum washing machine, and in the washing process, the clothes are lifted to a certain height along with the rotation of the inner barrel and then are beaten and dropped. In the embodiment, the centrifugal drainage component is integrated in the clothes lifting device, the initial state of the centrifugal drainage component is a closed state, the inner cylinder is kept closed and independently holds washing water, and the centrifugal drainage component can be opened to drain water under the action of centrifugal force, so that the drainage of the drum washing machine with the non-porous inner cylinder is realized.

Therefore, this embodiment sets up centrifugal drainage subassembly in with hoisting device, has not only realized sclausura inner tube drum type washing machine's clothing promotion and drainage, forms the modularization supply of goods moreover, and the production equipment of being convenient for improves the packaging efficiency.

In the centrifugal drainage assembly of the embodiment, if the thread scraps are hung on the elastic member once in a drainage state, the thread scraps are not easy to fall off, and the thread scraps cannot be separated from the elastic member even by drainage water flow, centrifugal water flow and centrifugal force; further, the thread scraps hung on the elastic member have a certain length, and a part of the thread scraps which are not hung reaches a drain hole of the inner cylinder and/or the vicinity of the sealing plunger under the action of drainage water flow, centrifugal water flow and centrifugal force, so that the problem of sealing failure is caused.

In order to solve the problem that thread scraps are easily hung on the elastic element, the centrifugal drainage assembly comprises a sealing plunger capable of reciprocating and an elastic element 3203 for elastically restoring the sealing plunger, wherein an elastic element jacket 3227 is arranged on the elastic element, and the elastic element jacket 3227 is hermetically covered on the elastic element 3203. Thus, in the reciprocating process of the centrifugal drainage assembly in the closed state and the drainage state, the elastic member 3203 is hermetically covered by the elastic member jacket 3227, thereby avoiding thread scraps from hanging and ensuring the working stability of the centrifugal drainage assembly.

As shown in fig. 2 to 7, the body according to the present embodiment includes:

a lift case 3201 having a protrusion on a surface thereof and an open cavity inside thereof;

a lifting base 3208 detachably mounted at an open end of the open cavity of the lifting housing 3201 to form a receiving chamber;

the centrifugal drainage assembly is mounted on a lifting base 3208, and the water inlet 3209 is disposed on the lifting housing 3201 and/or the lifting base 3208.

The lifting device of the present embodiment includes a lifting housing 3201 having a surface with protrusions for lifting the laundry; a poppet base 3208 removably mounted at the open end of the open cavity of the poppet housing 3201 to form a receiving chamber for mounting a centrifugal drainage assembly.

Further, the plunger seat according to the present embodiment is disposed on the lifting base 3208, a plunger through hole for sealing the plunger to penetrate out of the accommodating chamber is formed on the lifting base 3208, a plunger channel 3226 is formed in the plunger seat, and the sealing plunger is reciprocally disposed in the plunger channel 3226; the elastic part 3203 and the elastic part sheath 3227 are both arranged in the plunger channel 3226, or one end of the elastic part sheath 3227 is hermetically connected to the periphery of the outlet of the plunger channel 3226, and the other end of the elastic part sheath 3227 is hermetically connected to the part of the sealing plunger extending out of the plunger channel, and the elastic part is kept hermetically covered by the elastic part sheath 3227 in the reciprocating motion process of the sealing plunger, so that thread scraps are prevented from being hung. In addition, the plunger channel of the embodiment has a guiding function, so that the sealing plunger can stably reciprocate, and the sealing plunger 3213 can be more accurately reset to ensure the sealing effect of the water outlet of the inner cylinder.

As an embodiment of this embodiment, the sealing plunger in this embodiment includes a sealing post 3213 and a sealing plug 3204 disposed at one end of the sealing post 3213, the elastic member 3203 is a spring, one end of the spring abuts against an inner wall of the plunger channel 3226, the other end abuts against the sealing post 3213, and the elastic member sheath 3227 is an elastic threaded tube. The elastic member protective sleeve 3227 of this embodiment is an elastic threaded pipe, and on the one hand, the elastic threaded pipe can hermetically cover the spring, and at the same time, in the reciprocating process of the centrifugal drainage assembly in the closed state and the drainage state, the elastic member protective sleeve stretches along with the stretching of the spring, so that the working state of the centrifugal drainage assembly is not affected.

Specifically, the elastic threaded tube is disposed in the plunger channel and sleeved outside the spring to cover the entire spring, or one end of the elastic threaded tube is hermetically sleeved on the outer periphery of the outlet of the plunger channel 3226, and the other end of the elastic threaded tube is hermetically sleeved on the sealing plug 3204.

As shown in fig. 5, as an embodiment of this embodiment, the sealing plug 3204 includes a sealing portion fixed to one end of the sealing post, and the elastic member sheath is integrally formed with the sealing portion and extends from the sealing portion to the other end of the sealing post to form the elastic bellows. In the embodiment, the sealing plug 3204 and the elastic member jacket 3227 are integrally formed, so that the integral structure of the centrifugal drainage assembly is simplified, and the assembly is simpler.

Further, one end of the elastic bellows located in the plunger channel 3226 is in sealing contact with the inner wall surface of the plunger channel under the elastic resisting action of the elastic member.

Further, the sealing post 3213 includes a guiding portion 3223 and a mounting portion 3224 at one end of the guiding portion 3223, the guiding portion 3223 is reciprocally mounted in the plunger channel 3226, the sealing plug 3204 is mounted on the mounting portion 3224, and the support 3208 is an annular structure having a hollow channel therein communicating with the plunger channel 3226.

Specifically, the guiding portion 3223 is a cylindrical first cylinder, the mounting portion 3224 is a cylindrical second cylinder located at one end of the first cylinder, the diameter of the first cylinder is smaller than that of the second cylinder, the spring is stopped against an end surface of the second cylinder, an installation clamping ring for assembling the sealing plug 3204 is arranged at the other end of the second cylinder, and an installation clamping groove matched with the installation clamping ring is formed in the sealing plug 3204.

As an embodiment of this embodiment, the sealing post 3213 has a spring mounting chamber 3225 inside of one end thereof in the accommodating chamber for defining the other end of the spring.

Further, the plunger seat of the present embodiment includes a plunger hole 3214 penetrating the plunger through hole and a support 3208 disposed at an end of the plunger hole 3214 outside the receiving chamber, and the plunger channel 3226 is disposed through the plunger hole 3214.

Further, the centrifugal drainage assembly described in this embodiment includes the centrifugal piece that produces centrifugal motion under the centrifugal force effect, centrifugal piece includes connecting portion 3218 and counter weight portion 3217, and counter weight portion 3217 is connected to the one end of connecting portion 3218, and the other end is rotatable with sealed plunger 3213 and is connected, and the rotatable installation in the middle part of connecting portion 3218 forms lever structure on the plunger seat.

One end of the connecting portion 3218 of the present embodiment is provided with a first connecting hole 3215 rotatably connected to an end of the sealing plunger 3213, and a second connecting hole 3216 is provided in a middle portion of the connecting portion 3218.

In order to achieve a fixed connection between the lifting housing 3201 and the lifting base 3208, the lifting base 3208 has a base fixing column 3205, a connecting rib 3219 extending toward the open end is provided in the open cavity of the lifting body 3201, and the base fixing column 3205 is fixedly connected with the connecting rib 3219.

Preferably, the centrifugal drainage assembly is disposed in the middle of the lifting base 3208, and the base fixing posts 3205 include at least two and are symmetrically disposed on both sides of the centrifugal drainage assembly.

Further, base member fixed column 3205 and splice bar 3219 pass through joint structure joint location in this embodiment, base member fixed column 3205 and splice bar 3219 fix a position the back through connecting piece 3207 fixed connection.

Preferably, the connecting rib 3219 is provided with a locking protrusion, the base fixing post 3205 is provided with a channel for the connecting rib to extend into, and the peripheral wall of the channel is provided with a clamping groove which is matched and clamped with the locking protrusion.

In this embodiment, the connecting rib 3219 is provided with a connecting hole, the base fixing post 3205 is provided with a positioning hole opposite to the connecting hole, and the connecting member 3207 passes through the positioning hole and is fixedly connected to the connecting hole, preferably, the connecting member 3207 is a connecting screw.

In order to realize that the lifting device is installed in the inner cylinder, in this embodiment the uncovered both ends of promotion casing 3201 set up the casing fixed column 3202 that is used for fixed assembly lifting device respectively, promotion base 3208 correspond casing fixed column 3202 position department and dodge the setting, the casing fixed column 3202 of this embodiment makes the structure that the lifting device installed in the inner cylinder unchangeable, reduces the learning cost of assembly, improves the packaging efficiency.

Preferably, the lifting base 3208 is a plate-shaped structure covering the open cavity of the lifting housing 3201, two ends of the plate-shaped structure are spaced from the open edge of the lifting housing, respectively, and the housing fixing posts 3202 are correspondingly disposed in the spaces between the two ends.

The lift case 3201 according to the present embodiment includes an annular base portion 3211 and a protrusion portion 3212 integrally formed with the annular base portion 3211 and extending to protrude toward one side.

The water inlet 3209 is arranged on the annular base portion 3211, and the projection portion 3212 is provided with a plurality of spraying holes 3210 communicated with the open cavity.

As shown in fig. 1, the present embodiment also provides a drum washing machine having the laundry lifting device for washing machine, including:

an inner cylinder 17;

an inner cylinder door 6 openably/closably mounted on a cylinder opening of the inner cylinder 17;

when the inner drum door 6 is closed, the inner drum door and the inner drum 17 form an independent washing chamber together, and washing water is independently contained when clothes are washed;

the side wall of the inner cylinder 17 is provided with a water outlet, the lifting device 32 is arranged on the water outlet on the inner wall of the inner cylinder 17, and the centrifugal drainage component seals and closes the water outlet.

The drum washing machine of the embodiment has the advantages that the inner drum door 6 is arranged on the opening of the inner drum 17, the inner drum 17 adopts a non-porous drum design, the inner drum and the non-porous drum form an independent washing chamber together, washing water is independently contained when clothes are washed, and washing/rinsing water does not need to be filled between the inner drum and the outer drum, so that the washing water consumption of the washing machine is greatly reduced; the possibility of dirt adhesion between the inner cylinder and the outer cylinder is avoided; the user health and user experience are greatly improved, and water resources are greatly saved.

Furthermore, a fixing hole for fixedly assembling the lifting device 32 is formed in the side wall of the inner cylinder 17, the lifting device 32 is fixed on the fixing hole in a sealing mode through a connecting piece, and the aim of independently containing washing water is achieved by sealing, connecting and keeping the inner cylinder 17 closed.

The control method of the drum washing machine comprises an inner drum, washing water is contained in the inner drum when clothes are washed, a drain hole is formed in the side wall of the inner drum, a lifting device for controlling the on/off of the drain hole is installed on the drain hole, and the control method comprises the following steps: in the washing process of the washing machine, the rotating speed of the inner barrel is controlled to reach or exceed the set rotating speed N0, and the centrifugal drainage component of the lifting device is subjected to centrifugal force to open the drainage hole for inner barrel drainage.

The drainage device of the embodiment adopts the centrifugal drainage component, the control method opens the centrifugal drainage component to realize drainage by controlling the rotation of the inner cylinder to generate centrifugal force, and drainage and dehydration of the drum washing machine with the non-porous inner cylinder are realized by the centrifugal drainage component and a program control mode.

As an implementation manner of this embodiment, after the washing machine performs the washing procedure or the rinsing procedure, the rotation speed of the inner drum is controlled to reach the first rotation speed N1 and is maintained for a set time t1, where N1 is greater than or equal to N0, and N0 is greater than the rotation speed of the inner drum in the washing procedure or the rinsing procedure; when the rotation time of the inner cylinder keeping rotating speed N1 reaches t1, controlling the inner cylinder to stop rotating and entering the next procedure;

preferably, N1 is 110-400 rpm, more preferably 170 + -50 rpm, and still more preferably 150 + -20 rpm;

preferably, t1 ranges between 0.1 and 5 minutes, more preferably between 1 and 2 minutes.

Further, the washing machine includes a weighing device for weighing the weight in the inner tub, the weighing device detects a weight W0 in the inner tub before the inner tub starts to rotate at N1, the weighing device detects a weight W1 in the inner tub after the rotation time reaches t1, and the control system judges whether the water is normally drained according to comparison between W1 and W0.

Further, the control system judges whether the drainage is abnormal or not by comparing the value k of W1/W0, if the k is more than or equal to 0.7, the control system judges that the drainage is abnormal and gives an alarm, and if not, the drainage is normal.

As another implementation manner of this embodiment, after the washing machine performs the washing procedure or the rinsing procedure, the rotation speed of the inner tub is controlled to reach the first rotation speed N1, where N1 is greater than or equal to N0, and N0 is greater than the rotation speed of the inner tub in the washing procedure or the rinsing procedure; and after the water in the inner cylinder is drained, controlling the inner cylinder to stop rotating and entering the next procedure.

Further, the washing machine comprises a weighing device for weighing the weight in the inner barrel, and in the process that the inner barrel is controlled by the washing machine to keep rotating by N1, the control system judges whether the water drainage is finished according to the weight value in the inner barrel detected by the weighing device in real time.

Further, the control system judges whether the drainage is finished according to the weight value in the inner cylinder detected by the weighing device in real time and comprises:

the weighing device detects the weight values W0, W1, W2, … … and Wt in the inner cylinder in real time;

making the weighted values of adjacent time difference, and recording n 1-W1-W0, n 2-W2-W1 and … …, and nt-W (Wt) - (Wt-1);

when nt remains unchanged for a certain time and approaches 0, the drainage is completed.

Furthermore, the control system judges whether the drainage is normal or not by comparing the change conditions of n1, n2, … … and nt, and if n 1-n 2-nt … … -nt-0, the control system judges that the drainage is abnormal and gives an alarm.

Further, the washing machine performs a spinning course in which the minimum spinning speed N2 is equal to or greater than N0.

Example two

The embodiment mainly solves the problem of how to accurately determine the water inflow of the drum washing machine with the non-porous inner drum, and the specific scheme is as follows:

as shown in fig. 8, a drum washing machine includes an inner drum 17 and a water inlet pipeline communicated with the inner drum 17, wherein the inner drum 17 is a non-porous inner drum and is used for containing washing water when washing clothes, and the water inlet pipeline is provided with a flow sensor 1 for detecting the flow of the inlet water.

In the embodiment, the flow sensor 1 is arranged on the water inlet pipeline to monitor the flow of inlet water, and when the set water inflow is reached, the water inlet valve 20 is closed to finish water inlet. The embodiment adopts the flow sensor to solve the problem of water inlet of the drum washing machine with the non-porous inner drum according to the set water level, ensures the washing effect, has simple structure and is convenient to control.

Further, the drum washing machine of the embodiment includes a water inlet valve 20 and a detergent box 3, the water inlet pipeline includes a first water inlet pipe and a second water inlet pipe, the outlet end of the water inlet valve 20 is communicated with the detergent box 3 through the first water inlet pipe, the outlet end of the detergent box 3 is communicated with the inner barrel 17 through the second water inlet pipe, and the flow sensor 1 is arranged on the first water inlet pipe or the second water inlet pipe.

Preferably, the flow sensor 1 is disposed on the first water inlet pipe, so that the detergent in the detergent box can be placed into the flow sensor 1.

The drum washing machine of the embodiment comprises a main controller 4, and the flow sensor 1 is electrically connected with the main controller 4 through a line. The main controller 4 can collect the water inflow of the inner cylinder 17 in real time to reach the set water inflow, and the water inlet valve 20 is closed.

As an implementation manner of this embodiment, the flow sensor 1 is a rotor flow sensor, or a turbine flow sensor, or an ultrasonic flow sensor, or an electromagnetic flow sensor, or an orifice flow sensor.

In this embodiment, the flow sensor 1 may be disposed at any position on the water inlet pipeline, preferably, at the rear portion of the water inlet valve 20, and precisely measures the water flow entering the sealed inner cylinder 17, the flow sensor 1 is connected to the main controller 4 through a line, and the main controller 4 may collect the water inflow of the inner cylinder 17 in real time to set the water inflow and close the water inlet valve 20.

In order to realize water inlet into the nonporous inner barrel, the drum washing machine of the embodiment comprises a driving motor 16 and an inner barrel shaft 13, wherein the driving motor 16 is in transmission connection with the inner barrel 17 through the inner barrel shaft 13 to drive the inner barrel 17 to rotate, a hollow channel 14 communicated with the inside of the inner barrel 17 is arranged in the inner barrel shaft 13, and the water inlet pipeline is communicated with the hollow channel of the inner barrel shaft 13.

Specifically, the inner cylinder shaft 13 is connected with a driving motor 16, the driving motor 16 comprises a stator and a rotor, and the rotor is fixedly connected with the inner cylinder shaft 13; the center of the rotor is provided with a through hole, and the water inlet pipeline penetrates through the through hole of the rotor and is communicated with the hollow channel 14 of the inner cylinder shaft 13.

Furthermore, a first dynamic sealing structure 15 is arranged between the water inlet pipeline and the through hole of the rotor, and a second sealing structure is arranged between the through hole of the rotor and the hollow channel 14 of the inner cylinder shaft 13.

In order to realize the drainage of the imperforate inner cylinder, the drum washing machine of the embodiment comprises an outer cylinder 18, wherein an inner cylinder drainage hole is formed in the side wall of the inner cylinder 17, a normally closed one-way valve plug 11 is installed on the inner cylinder drainage hole, and a push rod mechanism 10 for pushing the one-way valve plug 11 open to drain water is installed on the outer cylinder 18.

In an embodiment of the present invention, the outer cylinder 18 is further provided with a locking mechanism for locking the rotation of the inner cylinder 17, and the locking mechanism pushes the one-way valve plug 11 open to discharge water after the inner cylinder is locked by the push rod mechanism 10.

As another implementation manner of this embodiment, in this embodiment, a plurality of dewatering holes are formed in the side wall of the inner cylinder 17, centrifugal valves are installed on the dewatering holes, and the centrifugal valves are opened under the action of the dewatering centrifugal force to perform washing drainage or dewatering drainage by controlling the inner cylinder to reach a certain rotation speed.

The present embodiment also provides a control method for the drum washing machine, in which the washing machine executes a washing/rinsing procedure, the flow sensor detects a water inlet flow value in real time during a water inlet process, the washing machine calculates a water inlet flow according to the water inlet flow value and the water inlet time, and stops water inlet when the water inlet flow reaches a set water inlet flow of the washing machine.

The drum washing machine is provided with a plurality of water inlet flow values for users to select, and the washing machine carries out water inlet according to the water inlet flow values selected by the users.

The drum washing machine has a clothes weighing function, and can determine the flow value of inlet water according to the weight of clothes to carry out water inlet.

EXAMPLE III

As shown in fig. 9-11, the drum washing machine of the present embodiment includes an inner drum 17 with no hole and a water inlet pipeline, the inner drum is used for containing washing water when washing clothes, and further includes a water measuring device for measuring water inlet amount, the water inlet pipeline is connected to the water measuring device, and the water measuring device is connected to the inner drum.

The drum type washing machine of this embodiment carries out the ration volume through setting up water gaging device, carries out the number of times of water gaging device water gaging according to the water level determination that sets for in advance to intaking in 1 of inner tube to solved sclausura inner tube drum type washing machine according to the problem of intaking of setting for the water level, ensured washing effect, simple structure controls the convenience.

Further, the water measuring device of the embodiment comprises a water measuring tank 21, wherein the water measuring tank 21 is provided with a water inlet and a water outlet, the water inlet is communicated with the water inlet pipeline, and the water outlet is communicated with the inner barrel 17; and the water outlet is provided with a water outlet control device for controlling the opening of the water outlet when the water quantity in the equivalent water tank 21 reaches a set value.

As an embodiment of this embodiment, as shown in fig. 9, the measuring water tank 21 is disposed at the bottom of the inner tub 17, the measuring water device includes a water level detecting device 22 for detecting the measuring water tank 21, the water outlet control device is a water tank drain pump 23, and the water tank drain pump 23 starts the water tank drain pump 23 to pump the water in the measuring water tank 21 into the inner tub 17 when the water level detecting device 22 detects that the water level in the measuring water tank 21 reaches a set value.

As an embodiment of this embodiment, as shown in fig. 10, the water measuring tank 21 is disposed at the upper portion of the inner cylinder 17, the water measuring device includes a water level detecting device 22 for detecting the water measuring tank, the water outlet control device is a water tank drain valve 25, and the water tank drain valve 25 opens to drain the water in the water measuring tank 21 into the inner cylinder when the water level detecting device 22 detects that the water level in the water measuring tank 21 reaches a set value.

The water level detecting device 22 described in this embodiment is a liquid level sensor, which includes an air chamber and a sensor unit, and the air chamber is communicated with the water measuring tank. Alternatively, the water level detecting device 22 includes a plurality of water level detecting probes arranged in the water measuring tank along the depth direction thereof.

As an implementation manner of this embodiment, the water measuring tank 21 is disposed on the upper portion of the inner cylinder 17, the water outlet is disposed on the bottom wall of the water measuring tank 21, the water outlet control device is a tank check valve for keeping the water outlet normally closed, when the amount of water in the water measuring tank reaches a certain value, the tank check valve is opened under the action of water pressure gravity, and after the water in the water measuring tank 21 is discharged into the inner cylinder 17, the tank check valve is reset to keep the water outlet closed.

The water measuring tank 21 described in this embodiment is provided with an overflow hole 24, and the overflow hole 24 is connected to an overflow pipe for guiding out water overflowing from the water measuring tank.

Preferably, the drum washing machine comprises a drain line 8, said overflow line communicating with the drain line 8.

As an embodiment of the present embodiment, as shown in fig. 11, the water measuring device includes a heating device 26 disposed in the water measuring tank 21 and a water temperature detecting device for detecting the temperature of water in the water measuring tank.

The present embodiment also provides a control method of the drum washing machine, where the washing machine executes a washing/rinsing procedure, the washing machine controls washing water to enter the water measuring tank, when the water amount in the water measuring tank reaches a set value, water inflow is stopped, water in the water measuring tank is completely discharged into the inner drum, water inflow is restarted to enter the water measuring tank, and the above-mentioned steps are repeated until the water level in the inner drum reaches the set value, and water inflow is ended.

Furthermore, the washing machine controls the washing water to enter the water measuring tank, when the water amount in the water measuring tank reaches a set value, the water stops entering, the heating device is controlled to operate to heat the washing water, and when the water temperature detection device detects that the water temperature in the water measuring tank reaches the set value, all the water in the water measuring tank is discharged into the inner barrel.

Example four

The embodiment mainly solves the problem of how to ensure the unbalanced air pressure of the sealed cabin of the drum washing machine with the non-porous inner barrel, and particularly, the water is cut off by a sudden electromagnetic valve, particularly a tap water pipe network to form negative pressure, and washing water in the sealed cabin is backwashed to the pipe network; or the inside has gas, the problem of difficult water intake.

As shown in fig. 12-14, the drum washing machine of the present embodiment includes an inner drum 17, the inner drum 17 is a non-porous inner drum, and is used for containing washing water when washing clothes, and further includes an air pressure balancing mechanism for communicating the inner drum 17 with the external environment to balance the air pressure inside the inner drum.

When water enters, the air in the sealed cabin of the inner cylinder is pressurized and can overflow through the balancing mechanism, so that the air pressure balance is ensured.

When water is cut off suddenly, external atmosphere can enter the sealed cabin of the inner barrel rapidly, suck back is damaged, air pressure balance is guaranteed, and washing water is prevented from being sucked into a tap water pipe network.

Other air pressure balancing mechanisms can also ensure the air pressure balance of the inner cylinder during dehydration.

As an implementation manner of this embodiment, the air pressure balancing mechanism includes a pressure equalizing hole 27 disposed on the inner barrel 17, and one end of the pressure equalizing hole 27, which is communicated with the inside of the inner barrel 17, is disposed on the inner barrel 17 at a position close to the central rotation axis and is always higher than the highest water level position in the inner barrel 17.

The drum washing machine of the embodiment comprises a driving motor 16 and an inner drum shaft 13, wherein the driving motor 16 is in transmission connection with the inner drum 17 through the inner drum shaft 13 to drive the inner drum 17 to rotate, a pressure equalizing pore passage 27 is formed in the inner drum shaft 13 to communicate the inside of the inner drum 17 with the external environment, and the highest water level in the inner drum 17 is lower than that of the inner drum shaft 13. Thus, the water in the inner cylinder can be prevented from flowing out of the pressure equalizing pore passage.

The drum washing machine of the embodiment comprises an outer drum 18, wherein the inner drum 17 is arranged inside the outer drum 18, water discharged from the inner drum 17 is discharged through the outer drum 18, an inner drum door 6 for sealing the inner drum is arranged at the opening of the inner drum 17, the opening of the outer drum 18 is open, one end of a pressure equalizing channel 27 is communicated with the inside of the inner drum 17, and the other end of the pressure equalizing channel is arranged inside the outer drum 18 and communicated with the inside of the outer drum 18. In this way, the bore effluent is prevented from being collected within the outer cartridge 18.

Furthermore, in this embodiment, an inner cylinder drain hole is formed in a side wall of the inner cylinder 17, a normally closed one-way valve plug 11 is installed on the inner cylinder drain hole, and a push rod mechanism 10 for pushing the one-way valve plug 11 open to drain water is installed on the outer cylinder 18.

Preferably, a locking mechanism for locking the rotation of the inner cylinder is further arranged on the outer cylinder 18, and the push rod mechanism pushes the one-way valve plug open for drainage after the locking mechanism locks the inner cylinder.

Further, the drum washing machine of the embodiment comprises a water inlet pipeline, the inner drum shaft 13 is internally provided with a hollow channel 14 communicated with the inside of the inner drum 17, and the water inlet pipeline is communicated with the hollow channel 14 of the inner drum shaft 13; the pressure equalizing pore passage 27 and the hollow channel 14 are respectively communicated with the inside of the inner cylinder 17 and are arranged in a mutually isolated way. Thus, the gas in the sealed cabin of the inner cylinder can be smoothly discharged to keep the air pressure in the inner cylinder balanced, and simultaneously, the water leakage caused by the direct discharge of the inlet water from the pressure equalizing pore passage 27 can be prevented.

Specifically, the hollow channel 27 extends from one end to the other end along the central axis direction of the inner cylinder shaft, the pressure equalizing channel includes a first channel section and a second channel section, the first channel section is arranged in parallel with the hollow channel, one end of the first channel section is communicated with the inside of the inner cylinder, one end of the second channel section is communicated with the first channel section, and the other end of the second channel section extends to the peripheral wall of the inner cylinder shaft and is communicated with the inside of the outer cylinder.

Preferably, the second pore channel section and the first pore channel section are vertically arranged to form an L-shaped pressure equalizing pore channel.

Further, the inner cylinder shaft 13 is connected with a driving motor 16, the driving motor 16 comprises a stator and a rotor, and the rotor is fixedly connected with the inner cylinder shaft; the center of the rotor is provided with a through hole, and the water inlet pipeline penetrates through the through hole of the rotor to be communicated with the hollow channel of the inner cylinder shaft.

Preferably, a first dynamic sealing structure is arranged between the water inlet pipeline and the through hole of the rotor, and a second sealing structure is arranged between the through hole of the rotor and the hollow channel of the inner cylinder shaft.

The drum type washing machine of this embodiment, set up a plurality of dehydration holes on the lateral wall of inner tube 17, all install the centrifugal valve on the dehydration hole, the centrifugal valve open under the effect of dehydration centrifugal force and dewater the drainage.

EXAMPLE five

As shown in fig. 15-19, the drum washing machine of the present embodiment includes an inner drum 17, the inner drum 17 is a non-porous inner drum, and holds washing water when washing clothes, and further includes a pressurization mechanism and/or a pressure release mechanism for communicating the inner drum with the external environment to balance the air pressure inside the inner drum 17.

The pressurizing mechanism described in this embodiment includes a pressurizing duct 28 and a negative pressure safety valve 29, the negative pressure safety valve 29 is disposed on the pressurizing duct 28, and is used for conducting the pressurizing duct 28 in one way when the internal pressure of the inner cylinder 17 is smaller than the atmospheric pressure of the external environment, the external environment gas enters the inner cylinder 17 from the pressurizing duct 28 to be pressurized until the internal pressure of the inner cylinder 17 is balanced with the atmospheric pressure of the external environment, and the negative pressure safety valve 29 is closed.

The pressure relief mechanism described in this embodiment includes a pressure relief hole 30 and a positive pressure safety valve 31, the pressure relief hole 30 is disposed at a position close to the rotation center axis on the inner cylinder 17 and is always higher than the highest water level position in the inner cylinder 17, the positive pressure safety valve 31 is disposed on the pressure relief hole 30, and is used for conducting the pressure relief hole 30 in one way for pressure relief when the internal pressure of the inner cylinder 17 is greater than the atmospheric pressure of the external environment, until the internal pressure of the inner cylinder 17 is balanced with the atmospheric pressure of the external environment, and the positive pressure safety valve 31 is closed.

As shown in fig. 16, when water enters, the air in the sealed cabin of the inner cylinder 17 is pressurized, and once the pressure is greater than the set value of the positive pressure safety valve, the positive pressure safety valve is opened, and the air can overflow through the pressure relief hole, so that the air pressure balance is ensured.

As shown in fig. 16, when water is suddenly cut off, the air in the sealed cabin of the inner cylinder 17 is pressurized, once the air is smaller than the set value of the positive pressure safety valve, the external atmosphere can rapidly enter the sealed cabin and destroy the suck-back, so that the air pressure balance is ensured, and the washing water is prevented from being sucked into a tap water pipe network.

The drum washing machine of the embodiment comprises a driving motor 16 and an inner drum shaft 13, wherein the driving motor 16 is in transmission connection with the inner drum 17 through the inner drum shaft 13 to drive the inner drum 17 to rotate, a pressurizing pore channel 28 and/or a pressure relief pore channel 30 are/is formed in the inner drum shaft 13 to communicate the inside of the inner drum 17 with the external environment, and the highest water level in the inner drum 17 is lower than the inner drum shaft 13.

The drum washing machine of the embodiment comprises an outer drum 18, wherein an inner drum 17 is arranged inside the outer drum 18, water discharged from the inner drum 17 is discharged from the outer drum 18, an inner drum door 6 for sealing the inner drum is installed at a drum opening of the inner drum 17, the drum opening of the outer drum 18 is opened, one end of a pressurizing pore passage 28 and/or a pressure relief pore passage 30 is communicated with the inside of the inner drum 17, and the other end of the pressurizing pore passage and/or the pressure relief pore passage 30 is arranged inside the outer drum 18 and.

The drum washing machine of the embodiment comprises a water inlet pipeline, wherein a hollow channel 14 communicated with the inside of an inner drum 17 is arranged in an inner drum shaft 13, and the water inlet pipeline is communicated with the hollow channel 14 of the inner drum shaft 13; the pressure relief duct 30 and the hollow channel 14 are respectively communicated with the interior of the inner cylinder 17 and are arranged in an isolated manner.

As shown in fig. 15 and 16, the hollow channel 14 extends from one end to the other end along the central axis direction of the inner cylinder shaft 13, the pressure relief duct 30 includes a first duct section and a second duct section, the first duct section is arranged in parallel with the hollow channel, one end of the first duct section is communicated with the inside of the inner cylinder, one end of the second duct section is communicated with the first duct section, and the other end of the second duct section extends to the outer peripheral wall of the inner cylinder shaft to be communicated with the inside of the outer cylinder;

preferably, the second duct section and the first duct section are arranged perpendicularly to form an L-shaped pressure relief duct.

The drum washing machine of the embodiment comprises a water inlet pipeline, wherein a hollow channel 14 communicated with the inside of an inner drum 17 is arranged in an inner drum shaft 13, and the water inlet pipeline is communicated with the hollow channel 14 of the inner drum shaft 13; the pressurizing port 28 communicates with the hollow passage 14.

Further, the hollow passage 14 extends from one end to the other end along the central axis direction of the inner cylinder shaft 13, one end of the pressurizing duct 28 is communicated with the hollow passage 14, and the other end extends to the outer peripheral wall of the inner cylinder shaft 13 and is communicated with the inside of the outer cylinder 18.

Preferably, the pressurizing port 28 and the hollow passage 14 are arranged perpendicular to each other.

The inner cylinder shaft is connected with the driving motor, the driving motor comprises a stator and a rotor, and the rotor is fixedly connected with the inner cylinder shaft; the center of the rotor is provided with a through hole, and the water inlet pipeline penetrates through the through hole of the rotor to be communicated with the hollow channel of the inner cylinder shaft.

As shown in fig. 18 and 19, the pressurizing duct 28 and the pressure relief duct 30 are both disposed on the inner cylinder shaft 13, and the openings for communicating with the atmosphere are both inside the outer cylinder 18; the openings of the sealed cabins communicated with the inner cylinder 17 are all arranged at the inner side of the water inlet channel 14 of the inner cylinder shaft 13.

It is contemplated that the preferred pressurization and

depressurization passageways

28, 30 are both disposed on the inner barrel shaft 13 and the vent to atmosphere opening is both inside the outer barrel 18; the openings of the sealed cabins communicated with the inner cylinder 17 are all arranged at the inner side of the sealed cabins.

The above embodiments may be implemented individually or in combination with each other.

Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A laundry lifting device for a washing machine, comprising:

a body having a receiving chamber therein;

2. A clothes lifting device for a washing machine as claimed in claim 1, wherein said body comprises:

the lifting shell is internally provided with an open cavity;

3. A clothes lifting device for a washing machine as claimed in claim 2, wherein said sealing plunger comprises a sealing post and a sealing plug disposed at one end of the sealing post, said elastic member is a spring, one end of the spring abuts against the inner wall of the plunger channel, the other end abuts against the sealing post, and said elastic member sheath is an elastic threaded tube;

4. A clothes lifting device for a washing machine as claimed in claim 3, wherein said sealing plug includes a sealing portion fixed to one end of a sealing post, said elastomeric sheath being formed integrally with said sealing portion and extending from said sealing portion to the other end of said sealing post to form said elastomeric bellows.

5. A clothes lifting device for a washing machine according to claim 4, wherein the end of the resilient bellows located in the plunger channel is in sealing contact with the inner wall surface of the plunger channel under the resilient stop of the resilient member.

6. A clothes lifting device for a washing machine as claimed in claim 2, wherein said plunger housing includes a plunger bore through said plunger aperture and a bracket disposed at an end of said plunger bore outside of said receiving chamber, said plunger passage being disposed through said plunger bore.

7. A clothes lifting device for a washing machine according to any one of claims 1 to 6, wherein the centrifugal drainage assembly comprises a centrifugal member which generates centrifugal motion under the action of centrifugal force, the centrifugal member comprises a connecting portion and a counterweight portion, one end of the connecting portion is connected with the counterweight portion, the other end of the connecting portion is rotatably connected with the sealing plunger, and the middle portion of the connecting portion is rotatably mounted on the plunger seat to form a lever structure.

8. A clothes lifting device for a washing machine as claimed in claim 7, wherein said connecting portion is a connecting rod, said weight portion is a weight block, said plunger hole pillar has an extension portion extending toward the weight portion, and a middle portion of said connecting rod is rotatably connected to the extension portion through a rotating shaft.

9. A drum washing machine having a laundry lifting device for a washing machine according to any one of claims 1 to 8, comprising:

an inner barrel;

10. A drum washing machine according to claim 9, characterized in that a fixing hole for fixedly assembling a lifting device is provided on the side wall of the inner drum near the drain port, and the lifting device is hermetically fixed on the fixing hole through a connecting piece.