CN112779729B

CN112779729B - Clothes lifting device for washing machine and drum washing machine

Info

Publication number: CN112779729B
Application number: CN201911080856.3A
Authority: CN
Inventors: 赵志强; 许升; 吕佩师; 李以民
Original assignee: Qingdao Haier Washing Electric Appliance Co Ltd; Haier Smart Home Co Ltd
Current assignee: Qingdao Haier Washing Electric Appliance Co Ltd; Haier Smart Home Co Ltd
Filing date: 2019-11-07
Publication date: 2024-06-25
Anticipated expiration: 2039-11-07

Abstract

The invention provides a clothes lifting device for a washing machine and a drum washing machine, wherein the clothes lifting device for the washing machine comprises: a body having an accommodating chamber therein; the water inlet is arranged on the body and is communicated with the accommodating cavity; the centrifugal drainage assembly is arranged in the accommodating cavity, the initial state of the centrifugal drainage assembly is a closed state, and the centrifugal drainage assembly can be opened to drain under the action of centrifugal force; the centrifugal drainage assembly comprises a sealing plunger capable of reciprocating and an elastic piece for elastically resetting the sealing plunger, wherein the body is provided with a plunger seat for installing the sealing plunger, and the elastic piece is kept limited in the plunger seat in the reciprocating process of the sealing plunger. According to the invention, the elastic piece of the centrifugal drainage assembly is arranged in the plunger seat in a sealing way, the elastic piece is kept limited in the plunger seat in the reciprocating movement process of the sealing plunger, the elastic piece is arranged in a sealing way, the hanging of thread scraps is avoided, and the working stability of the centrifugal drainage assembly is ensured.

Description

Clothes lifting device for washing machine and drum 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 roller washing machine.

Background

The washing machine is used as a household appliance which is most 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 also has certain drawbacks, such as long time consumption and large water consumption, and along with the development of society, water resources become more and more important as an important natural resource, so that the water saving awareness of people is improved, and how to realize the water saving function of the washing machine is particularly important.

In order to solve the water saving problem of the washing machine, some patents, such as patent number 201410215346.3, are also provided, and the invention is 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 drum and an outer drum are arranged in the box body, a door seal is arranged between the outer drum and the box body, the inner drum is connected with a driving device, the inner drum is a pore-free inner drum, the inner drum is a conical drum with small diameter at the bottom of the drum and large diameter at the opening of the drum, the opening of the inner drum is folded inwards 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 rapid washing water heating device, the other end of the water inlet guide pipe penetrates through the door seal and stretches into the inner drum, and a water outlet and a water pressure detection device are arranged on the outer drum. According to the technical scheme, the inner cylinder is a non-porous inner cylinder, water inlet of the inner cylinder is realized through the water inlet guide pipe arranged on the door seal, and water is discharged 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 pore-free inner drum, and the water inlet mode of the drum washing machine disclosed by the patent is that the sealing effect of the door seal is easily affected and is not easy to realize because the main function of the door seal is to realize the sealing of the drum opening of the outer drum of the washing machine, and the water inlet guide pipe is arranged on the door seal; in addition, the drainage of the patent is mainly realized by combining a cylinder type structure with high-speed driving of a driving device, the cylinder type structure is complex, the drainage effect and the inner cylinder sealing effect cannot be guaranteed, and a plurality of problems exist in practical application.

In view of this, the present invention has been made.

Disclosure of Invention

In order to solve the above problems, a first aspect of the present invention provides a laundry lifting device for a washing machine, specifically, the following technical solution is adopted:

A laundry lifting apparatus for a washing machine, comprising:

A body having an accommodating chamber therein;

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

The centrifugal drainage assembly is arranged in the accommodating cavity, the initial state of the centrifugal drainage assembly is a closed state, and the centrifugal drainage assembly can be opened to drain under the action of centrifugal force;

The centrifugal drainage assembly comprises a sealing plunger capable of reciprocating and an elastic piece for elastically resetting the sealing plunger, wherein the body is provided with a plunger seat for installing the sealing plunger, and the elastic piece is kept limited in the plunger seat in the reciprocating process of the sealing plunger.

Further, the body includes:

A lifting housing having an open cavity therein;

the lifting base body is detachably arranged at the open end of the open cavity of the lifting shell to form a containing cavity;

The plunger seat is arranged on the lifting base body, a plunger through hole for the sealing plunger to penetrate through the accommodating cavity is formed in the lifting base body, a plunger channel is formed in the plunger seat, the sealing plunger can be arranged in the plunger channel in a reciprocating mode, and the elastic piece is kept limited in the plunger channel in the reciprocating motion process of the sealing plunger.

Further, the plunger seat comprises a plunger hole column penetrating through the plunger through hole and a support arranged at one end of the plunger hole column outside the accommodating cavity, and the plunger channel penetrates through the plunger hole column.

Further, the sealing plunger comprises a sealing column and a sealing plug arranged at one end of the sealing column, the elastic piece is a spring, one end of the spring is stopped against the inner wall of the plunger channel, the other end of the spring is stopped against the sealing column, a certain interval is arranged between the position of the spring stopped against the sealing column and the sealing plug, and the interval is larger than or equal to the displacement distance of the sealing plug from a closed state to a drainage state.

Further, the sealing column comprises a guide part and a mounting part positioned at one end of the guide part, the guide part can be mounted in the plunger channel in a reciprocating manner, the sealing plug is mounted on the mounting part, the support is of an annular structure with a hollow channel communicated with the plunger channel, and the projection height of the mounting part on the reciprocating motion path is greater than or equal to the projection height of the support on the reciprocating motion path.

Further, the guide part is a cylindrical first column, the installation part is a cylindrical second column arranged at one end of the first column, the diameter of the first column is smaller than that of the second column, and the spring is stopped on the end face of the second column.

Further, the centrifugal drainage assembly comprises a centrifugal piece which generates centrifugal motion under the action of centrifugal force, the centrifugal piece comprises a connecting part and a counterweight part, one end of the connecting part is connected with the counterweight part, the other end of the connecting part is rotatably connected with the sealing plunger, and the middle part of the connecting part is rotatably arranged on the plunger seat to form a lever structure.

Further, the connecting portion is a connecting rod, the counterweight portion is a counterweight, the plunger hole column is provided with an extension portion extending towards the counterweight portion, and the middle portion of the connecting rod is rotatably connected with the extension portion through a rotating shaft.

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

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

an inner cylinder;

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

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

the side wall of the inner cylinder is provided with a water outlet, the lifting device is arranged on the water outlet on the inner wall of the inner cylinder, and the centrifugal water draining assembly is plugged to close the water outlet.

Further, a fixing hole for fixing and assembling the lifting device is formed in the side wall of the inner cylinder, close to the water outlet, and the lifting device is fixed to 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 cylinder 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 cylinder to fall down. The centrifugal drainage assembly is integrated in the clothes lifting device, the initial state of the centrifugal drainage assembly is a closed state, the inner cylinder is kept closed and independently holds washing water, and the centrifugal drainage assembly can be opened to drain 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 drum opening of the inner drum, the inner drum door is of a non-porous drum design, an independent washing chamber is formed by the inner drum door and the non-porous drum, 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 health and the user experience of the user are greatly improved, and the water resource is greatly saved.

According to the invention, the elastic piece of the centrifugal drainage assembly is arranged in the plunger seat in a sealing way, the elastic piece is kept limited in the plunger seat in the reciprocating movement process of the sealing plunger, the elastic piece is arranged in a sealing way, the hanging of thread scraps is avoided, and the working stability of the centrifugal drainage assembly is ensured.

Drawings

Fig. 1 is a schematic view of a drum washing machine according to an embodiment of the present invention;

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

fig. 3 is a schematic perspective view showing 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 an embodiment of the present invention;

FIG. 5 is a cross-sectional view of a laundry lifting device for a washing machine according to an embodiment of the present invention taken along the A-A plane of FIG. 4;

FIG. 6 is a sectional view of a laundry lifting apparatus for a washing machine according to the first embodiment of the present invention taken along the B-B plane in FIG. 4;

fig. 7 is a schematic diagram of a drum washing machine according to a second embodiment of the present invention;

Fig. 8 is a schematic diagram of a drum washing machine according to a third embodiment of the present invention (first embodiment);

Fig. 9 is a schematic diagram of a drum washing machine according to a third embodiment of the present invention (second embodiment);

Fig. 10 is a schematic diagram of a drum washing machine according to a third embodiment of the present invention (third embodiment);

fig. 11 is a schematic diagram of a drum washing machine according to a fourth embodiment of the present invention;

Fig. 12 is a partial enlarged view (pressure release state) of fig. 11 of a drum washing machine according to a fourth embodiment of the present invention;

fig. 13 is a partial enlarged view (pressurized state) of fig. 11 of a drum washing machine according to a fourth embodiment of the present invention;

fig. 14 is a schematic view of a drum washing machine according to a fifth embodiment of the present invention;

fig. 15 is a partial enlarged view of fig. 14 of a drum washing machine according to a fifth embodiment of the present invention (a pressure release state of the first embodiment);

Fig. 16 is a partial enlarged view (pressurized state of embodiment one) of fig. 14 of a drum washing machine of embodiment five of the present invention;

fig. 17 is a partial enlarged view of fig. 14 of a drum washing machine according to a fifth embodiment of the present invention (a pressure release state of the second embodiment);

fig. 18 is a partial enlarged view (supercharging state of the second embodiment) of fig. 14 of a drum washing machine according to the fifth embodiment of the present invention.

Detailed Description

The laundry lifting device for a washing machine and the drum washing machine according to the present invention will be described in detail with reference to the accompanying drawings:

As shown in fig. 1 to 18, the present embodiment provides a drum washing machine of a front open type structure of a non-porous inner tub, which has a simple structure and can greatly reduce the amount of washing water used for the washing machine without filling washing/rinsing water between the inner tub and the outer tub. Avoiding the possibility of dirt adhesion between the inner cylinder and the outer cylinder. The health and the user experience of the user are greatly improved, and the water resource is greatly saved.

The drum washing machine of the present embodiment has a housing 19, and the housing 19 includes: top deck 2, front deck, back deck and bottom deck. A foot 9 is fixed on the bottom plate for supporting the whole washing machine. The housing 19 has an outer tube 18 inside, and an inner tube 17 is coaxially provided in the outer tube 18. The outer tube 18 is mainly for collecting the drain water of the inner tube 17 and the drain water of the inner tube 17 by high-speed centrifugal dehydration. The inner drum 17 rotates, preferably with lifting ribs 43, to continuously lift, drop and beat the laundry to wash the laundry. The inner barrel 17 is of non-porous construction. The outer tube 18 has a central mounting hole to which the bearing 12 is mounted and secured. An inner cylinder shaft 13, which is fixedly connected to an inner cylinder 17, passes through the bearing 12 shown and is connected to a drive motor 16. An openable/closable inner cylinder door 6 is arranged on the front cylinder opening of the inner cylinder 17, so that the inner cylinder 17 is of a sealed cabin structure.

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

Example 1

As shown in fig. 1 to 6, a laundry lifting device for a washing machine and a drum washing machine according to the present embodiment.

A laundry lifting device for a washing machine of this embodiment includes:

A body having an accommodating chamber therein;

The centrifugal drainage assembly is arranged in the accommodating cavity;

The centrifugal drainage assembly is in a closed state in the initial state, and can be opened to drain under the action of centrifugal force.

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

Therefore, the centrifugal drainage assembly is arranged in the lifting device, so that not only is the clothes lifted and drained by the hole-free inner cylinder drum washing machine realized, but also modular goods supply is formed, the production and the assembly are convenient, and the assembly efficiency is improved.

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

In order to solve the problem that the elastic element is easy to hang thread scraps, the centrifugal drainage assembly in the embodiment comprises a sealing plunger capable of reciprocating and an elastic element 3203 for elastically resetting the sealing plunger, wherein the body is provided with a plunger seat for installing the sealing plunger, and the elastic element is kept limited in the plunger seat in the reciprocating process of the sealing plunger. According to the embodiment, the elastic piece of the centrifugal drainage assembly is arranged in the plunger seat in a sealing mode, the elastic piece is arranged in a sealing mode, wire scraps are prevented from being hung, and working stability of the centrifugal drainage assembly is guaranteed.

As shown in fig. 2 to 6, the body according to the present embodiment includes:

a lifting housing 3201 having a boss on a surface thereof and an open cavity inside;

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 drain 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 protrusion on a surface thereof for lifting laundry; the lifting base 3208 is detachably mounted at the open end of the open cavity of the lifting housing 3201 to form a receiving chamber for mounting the centrifugal drain assembly.

Further, the plunger seat in this embodiment is disposed on the lifting base 3208, a plunger through hole for the sealing plunger to penetrate the accommodating chamber is formed in the lifting base 3208, a plunger channel is formed in the plunger seat, the sealing plunger is reciprocally disposed in the plunger channel, and the elastic member is kept limited in the plunger channel during the reciprocal movement of the sealing plunger. In addition, the plunger channel of the embodiment ensures that the sealing plunger stably reciprocates, so that the sealing plunger 3213 can reset more accurately to ensure the sealing effect of the water outlet of the inner barrel.

Specifically, the plunger holder of the present embodiment includes a plunger hole post 3214 penetrating the plunger hole and a bracket 3208 disposed at an end of the plunger hole post 3214 outside the accommodating chamber, and the plunger channel 3226 is disposed through the plunger hole post 3214.

The sealing plunger according to 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 is stopped against the inner wall of the plunger channel 3226, the other end is stopped against the sealing post 3213, a certain interval is provided between the position of the spring stopped against the sealing post 3213 and the sealing plug 3204, and the interval is greater than or equal to the displacement distance of the sealing plug 3204 from the closed state to the drainage state.

In this embodiment, by limiting the installation positions of the spring and the sealing plug 3204, the spring does not extend out of the plunger channel 3226 when the sealing plug 3204 extends out of the sealing water outlet, so that the contact between the washing water and the spring is avoided, and the thread scraps are prevented from being hung on the spring.

Further, the sealing post 3213 includes a guiding portion 3223 and a mounting portion 3224 located 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, the support 3208 is of a ring structure with a hollow channel communicating with the plunger channel 3226 inside, and the projection height of the mounting portion 3224 on the reciprocal movement path is greater than or equal to the projection height of the support 3208 on the reciprocal movement path. This allows the spring to not extend out of the plunger channel 3226 even when the sealing plug 3204 extends out of the holder 3208 to block the drain opening.

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 the end face of the second cylinder, the other end of the second cylinder is provided with a mounting clamping ring for assembling the sealing plug 3204, and the sealing plug 3204 is provided with a mounting clamping groove matched with the mounting clamping ring.

As one implementation of this embodiment, the sealing post 3213 has a spring mounting chamber 3225 inside one end of the receiving chamber for defining the other end of the spring.

Further, the centrifugal drainage assembly according to this embodiment includes a centrifugal member that generates centrifugal movement under the action of centrifugal force, where the centrifugal member includes a connecting portion 3218 and a counterweight portion 3217, one end of the connecting portion 3218 is connected to the counterweight portion 3217, the other end is rotatably connected to the sealing plunger 3213, and a middle portion of the connecting portion 3218 is rotatably mounted on the plunger seat to form a lever structure.

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 the fixed connection between the lifting housing 3201 and the lifting base 3208, the lifting base 3208 has a base fixing post 3205, a connecting rib 3219 extending towards the open end is disposed in the open cavity of the lifting body 3201, and the base fixing post 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 columns 3205 include at least two base fixing columns, which are symmetrically disposed on two sides of the centrifugal drainage assembly.

Further, in this embodiment, the base fixing columns 3205 and the connecting ribs 3219 are clamped and positioned by the clamping structure, and the base fixing columns 3205 and the connecting ribs 3219 are fixedly connected by the connecting pieces 3207 after being positioned.

Preferably, the connecting rib 3219 is provided with a clamping protrusion, the base fixing column 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 clamping protrusion.

The connecting ribs 3219 in this embodiment are provided with connecting holes, the base fixing columns 3205 are provided with positioning holes opposite to the connecting holes, the connecting pieces 3207 penetrate through the positioning holes to be fixedly connected with the connecting holes, and preferably, the connecting pieces 3207 are connecting screws.

In order to realize that hoisting device installs in the inner tube, this embodiment the uncovered both ends of hoisting shell 3201 set up the casing fixed column 3202 that is used for fixed assembly hoisting device respectively, the setting is dodged to the casing fixed column 3202 position department that corresponds to the promotion base member 3208, the casing fixed column 3202 of this embodiment makes hoisting device install the structure in the inner tube unchangeable, reduces the study cost of assembly, improves packaging efficiency.

Preferably, the lifting base 3208 is a plate structure covered on the open cavity of the lifting housing 3201, two ends of the plate structure are respectively spaced from the open edge of the lifting housing, and the housing fixing columns 3202 are correspondingly arranged in the spaces at two ends.

The lifting housing 3201 of the present embodiment includes a ring-shaped base portion 3211 and a protruding portion 3212 integrally formed with the ring-shaped base portion 3211 and protruding toward one side.

The water inlet 3209 is disposed on the annular base portion 3211, and the protruding portion 3212 is provided with a plurality of spray holes 3210 that are 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 a washing machine, comprising:

an inner cylinder 17;

An inner cylinder door 6 which is installed on a cylinder opening of an inner cylinder 17 in an openable/closable manner;

when the inner barrel door 6 is closed, an independent washing chamber is formed together with the inner barrel 17, 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 water draining assembly is used for plugging and closing the water outlet.

The drum washing machine of the embodiment has the advantages that the drum door 6 is arranged on the drum opening of the inner drum 17, the inner drum 17 is of a non-porous drum design, and the drum door and the non-porous drum form an independent washing chamber together, so that washing water is independently contained during washing clothes, and washing water consumption of the washing machine can be greatly reduced 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 health and the user experience of the user are greatly improved, and the water resource is greatly saved.

Further, a fixing hole for fixing and assembling the lifting device 32 is formed in the side wall of the inner barrel 17, the lifting device 32 is fixed on the fixing hole in a sealing manner through a connecting piece, and the inner barrel 17 is sealed and connected in a sealing manner, so that the aim of independently containing washing water is fulfilled.

The control method of the drum washing machine of this embodiment, the washing machine includes the inner tube, hold the wash water in the inner tube while washing the clothes, offer the drain hole on the sidewall of the inner tube, install the lifting device controlling its on/off on the drain hole, the control method includes: in the washing process of the washing machine, the rotation speed of the inner cylinder is controlled to reach or exceed the set rotation speed N0, and the centrifugal drainage assembly of the lifting device is subjected to centrifugal force to open the drainage hole for inner cylinder drainage.

The drainage device of the embodiment adopts a centrifugal drainage assembly, the control method opens the centrifugal drainage assembly to drain water by controlling the rotation of the inner cylinder to generate centrifugal force, and the drainage and the dehydration of the drum washing machine with the pore-free inner cylinder are realized by the centrifugal drainage assembly and a program control mode.

As one implementation mode of the embodiment, after the washing machine executes a washing program or a rinsing program, controlling the rotation speed of the inner cylinder to reach a first rotation speed N1 and maintaining a set time t1, wherein N1 is more than or equal to N0, and N0 is greater than the rotation speed of the inner cylinder in the washing program or the rinsing program; when the rotation time of the inner cylinder maintaining the rotation speed N1 reaches t1, controlling the inner cylinder to stop rotating to enter the next program;

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

preferably, t1 ranges from 0.1 to 5 minutes, more preferably from 1 to 2 minutes.

Further, the washing machine comprises a weighing device for weighing the weight in the inner cylinder, the weighing device detects the weight W0 in the inner cylinder before the inner cylinder starts to rotate by N1, the weighing device detects the weight W1 in the inner cylinder after the rotation time reaches t1, and the control system judges whether the water drainage is normal according to the comparison of the W1 and the W0.

Further, the control system judges whether the drainage is abnormal by comparing the value k of W1/W0, if k is more than or equal to 0.7, the control system judges that the drainage is abnormal and alarms, otherwise, the drainage is normal.

As another implementation mode of the embodiment, after the washing machine executes the washing program or the rinsing program, the rotating speed of the inner cylinder is controlled to reach a first rotating speed N1, wherein N1 is more than or equal to N0, and N0 is larger than the rotating speed of the inner cylinder in the washing program or the rinsing program; when the water in the inner cylinder is discharged, the inner cylinder is controlled to stop rotating to enter the next procedure.

Further, the washing machine comprises a weighing device for weighing the weight in the inner cylinder, and in the process that the inner cylinder 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 cylinder detected by the weighing device in real time.

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

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

Taking the difference between the weighing values of adjacent times, and recording n1=w1-w0, n2=w2-w1, … …, nt= (Wt) - (Wt-1);

When nt remains unchanged for a certain period of time and tends to 0, the drainage is completed.

Further, the control system determines whether the drainage is normal by comparing the change conditions of n1, n2, … …, and nt, and if n1=n2= … … =nt=0, the control system determines that the drainage is abnormal and alarms.

Further, the washing machine performs a dehydration process in which the lowest dehydration rotation 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 pore-free inner barrel drum washing machine, and the specific scheme is as follows:

As shown in fig. 7, a drum washing machine comprises 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, washing water is contained in washing clothes, and a flow sensor 1 for detecting the flow of the water inlet is arranged on the water inlet pipeline.

In this embodiment, the flow sensor 1 is disposed on the water inlet pipe to monitor the flow rate of the water when the water inlet reaches the set water inlet amount, and the water inlet valve 20 is closed to complete water inlet. The flow sensor is adopted in the embodiment, so that the problem of water inflow of the pore-free inner barrel drum washing machine according to the set water level is solved, the washing effect is ensured, the structure is simple, and the control is convenient.

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

Preferably, the flow sensor 1 is arranged on the first 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, wherein the flow sensor 1 is electrically connected with the main controller 4 through a circuit. The main controller 4 can collect the water inflow of the inner cylinder 17 in real time, the water inflow reaches the set water inflow, and the water inlet valve 20 is closed.

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

The flow sensor 1 can be arranged at any position on the water inlet pipe, preferably at the rear part of the water inlet valve 20, and can accurately measure the water flow entering the sealed inner cylinder 17, the flow sensor 1 is connected with the main controller 4, the main controller 4 can collect the water inflow of the inner cylinder 17 in real time, the set water inflow is achieved, and the water inlet valve 20 is closed.

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

Further, 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 pore-free inner cylinder, the drum washing machine of the embodiment comprises an outer cylinder 18, 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 arranged on the inner cylinder drainage hole, and a push rod mechanism 10 for pushing the one-way valve plug 11 open for drainage is arranged on the outer cylinder 18.

As an embodiment of the present embodiment, the outer cylinder 18 is further provided with a locking mechanism for locking the rotation of the inner cylinder 17, and the locking mechanism locks the inner cylinder and then the ejector mechanism 10 pushes the one-way valve plug 11 open to drain water.

As another implementation manner of this embodiment, a plurality of dewatering holes are formed on the side wall of the inner cylinder 17, and centrifugal valves are installed on the dewatering holes, and the inner cylinder is controlled to reach a certain rotation speed, and the centrifugal valves are opened to wash and drain water or dewater and drain water under the action of dewatering centrifugal force.

The embodiment also provides a control method of the drum washing machine, wherein the washing machine executes a washing/rinsing program, in the water inlet process, a flow sensor detects the water inlet flow value in real time, the washing machine calculates the water inlet amount according to the water inlet flow value and the water inlet time, and when the water inlet amount reaches the set water inlet amount of the washing machine, the water inlet is stopped.

The drum washing machine is provided with a plurality of inflow flow values which can be selected by a user, and the washing machine performs water inflow according to the inflow flow values selected by the user.

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

Example III

As shown in fig. 8-10, a drum washing machine of this embodiment includes an inner drum 17 and a water inlet pipeline, the inner drum is a non-porous inner drum, and holds washing water during washing clothes, and further includes a water metering device for metering water inflow, the water inlet pipeline is communicated with the water metering device, and the water metering device is communicated with the inner drum.

The drum washing machine of this embodiment is through setting up water measuring device, enters into the water measuring device before the water intaking in inwards 1 and carries out quantitative measuring in earlier, confirms the number of times of water measuring device water measuring according to the water level that sets for to solved the problem of intaking of aporate inner tube drum washing machine according to the water level that sets for, ensured the washing effect, simple structure, it is convenient to control.

Further, the water measuring device in this embodiment includes a water measuring tank 21, the water measuring tank 21 has a water inlet and a water outlet, the water inlet is connected with the water inlet pipeline, and the water outlet is connected with the inner cylinder 17; 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 water tank 21 reaches a set value.

As an implementation manner of this embodiment, as shown in fig. 8, the water tank 21 is disposed at the bottom of the inner cylinder 17, the water tank includes a water level detecting device 22 for detecting the water tank 21, the water outlet control device is a water tank drain pump 23, and the water tank drain pump 23 is started to pump water in the water tank 21 into the inner cylinder 17 when the water level detecting device 22 detects that the water level in the water tank 21 reaches a set value.

As an implementation manner of this embodiment, as shown in fig. 9, the water tank 21 is disposed at an upper portion of the inner cylinder 17, the water tank includes a water level detecting device 22 for detecting the water tank, the water outlet control device is a water tank drain valve 25, and the water tank drain valve 25 is opened to drain water in the water tank 21 into the inner cylinder when the water level detecting device 22 detects that the water level in the water tank 21 reaches a set value.

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

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

The overflow hole 24 is arranged on the water tank 21 in the embodiment, and the overflow hole 24 is connected with an overflow pipeline for guiding out the overflowed water in the water tank.

Preferably, the drum washing machine comprises a drain pipe 8, and the overflow pipe is communicated with the drain pipe 8.

As an implementation of the present embodiment, as shown in fig. 10, the water measuring device includes a heating device 26 provided in the water measuring tank 21 and a water temperature detecting device detecting the water temperature in the water measuring tank.

The embodiment also provides a control method of the drum washing machine, the washing machine executes a washing/rinsing program, the washing machine controls washing water to enter the water tank, when the water quantity in the water tank reaches a set value, water inflow is stopped, water in the water tank is completely discharged into the inner drum, water inflow is started again to enter the water tank, and circulation is performed until the water level in the inner drum reaches the set value, and water inflow is ended.

Further, the washing machine controls the washing water to enter the water measuring tank, when the water quantity in the water measuring tank reaches a set value, water inflow is stopped, 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, the water in the water measuring tank is completely discharged into the inner barrel.

Example IV

The embodiment mainly solves the problem of how to ensure the unbalanced air pressure of the sealed cabin of the non-porous inner cylinder drum washing machine, and particularly, the sudden water interruption of the electromagnetic valve, especially the water interruption of a tap water pipe network, forms negative pressure and backflushes the washing water in the sealed cabin to the pipe network; or the gas exists in the water tank, and the water is difficult to enter.

As shown in fig. 11-13, the drum washing machine of the present embodiment includes an inner drum 17, wherein the inner drum 17 is a non-porous inner drum, and is used for containing washing water during 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 is fed, the air in the sealed cabin of the inner cylinder is pressurized and overflows through the balance mechanism, so that air pressure balance is ensured.

When water is suddenly cut off, the external atmosphere can rapidly enter the sealed cabin of the inner cylinder, reverse suction is destroyed, air pressure balance is ensured, and washing water is prevented from being sucked into a tap water pipe network.

The air pressure balance mechanism can ensure the air pressure balance of the inner cylinder when other materials are dehydrated.

As an implementation manner of this embodiment, the air pressure balancing mechanism includes a pressure equalizing hole 27 disposed on the inner cylinder 17, where one end of the pressure equalizing hole 27, which is connected to the inner cylinder 17, is disposed on the inner cylinder 17 near the rotation center axis and is always higher than the highest water level in the inner cylinder 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 canal 27 is formed in the inner drum shaft 13 to communicate 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 from the pressure equalizing pore canal.

The drum washing machine of this embodiment includes urceolus 18, inner tube 17 set up in urceolus 18 inside, the water that discharges in the inner tube 17 is discharged through urceolus 18, the inner tube door 6 of sealed inner tube is installed to the nozzle of inner tube 17, the nozzle of urceolus 18 is opened, the one end intercommunication inner tube 17 inside of pressure equalizing duct 27, the other end sets up in urceolus 18 inside and communicates with each other. In this way, the extreme case is prevented, and the hole water can also be collected in the outer tub 18.

Further, in this embodiment, an inner cylinder drain 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 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 locking mechanism pushes the one-way valve plug open for draining after the inner cylinder is locked by the locking mechanism.

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 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 canal 27 and the hollow channel 14 are respectively communicated with the inner part of the inner cylinder 17 and are mutually isolated. Thus, the gas in the sealed cabin of the inner cylinder can be smoothly discharged to keep the air pressure balance in the inner cylinder, and meanwhile, the water inflow is prevented from being directly discharged from the pressure equalizing pore canal 27 to leak water.

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 comprises 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 to be communicated with the inside of the outer cylinder.

Preferably, the second duct section is perpendicular to the first duct section to form an L-shaped pressure equalizing duct.

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 and is 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.

In the drum washing machine of this embodiment, a plurality of dewatering holes are formed in the side wall of the inner drum 17, and centrifugal valves are installed in the dewatering holes, and are opened to dewater and drain under the action of dewatering centrifugal force.

Example five

As shown in fig. 14-18, the drum washing machine of the present embodiment includes an inner drum 17, wherein the inner drum 17 is a non-porous inner drum, and is used for containing washing water during washing clothes, and further includes a pressurizing mechanism and/or a pressure releasing mechanism for communicating the inner drum with the external environment to balance the air pressure inside the inner drum 17.

The pressurizing mechanism in this embodiment includes a pressurizing channel 28 and a negative pressure relief valve 29, the negative pressure relief valve 29 is disposed on the pressurizing channel 28, and is used for conducting the pressurizing channel 28 in a unidirectional manner when the internal pressure of the inner cylinder 17 is smaller than the external atmospheric pressure, and the external atmospheric gas enters the inner cylinder 17 from the pressurizing channel 28 to be pressurized until the internal air pressure of the inner cylinder 17 is balanced with the external atmospheric pressure, and the negative pressure relief valve 29 is closed.

The pressure release mechanism in this embodiment includes pressure release pore canal 30 and positive pressure relief valve 31, pressure release pore canal 30 set up on inner tube 17 be close to rotation center axis position department and be higher than the highest water level position in the inner tube 17 all the time, positive pressure relief valve 31 set up on pressure release pore canal 30 for the pressure release is carried out to the unidirectional conduction pressure release pore canal 30 when inner tube 17 internal pressure is greater than external environment atmospheric pressure, until inner tube 17 internal air pressure and external environment atmospheric pressure balance, positive pressure relief valve 31 is closed.

As shown in fig. 15, when water is fed, the gas in the sealed cabin of the inner cylinder 17 is pressurized, and once the pressure is larger than the set value of the positive pressure safety valve, the positive pressure safety valve is opened and overflows through the pressure relief pore canal, so that the air pressure balance is ensured.

As shown in figure 15, when water is suddenly cut off, the air in the sealed cabin of the inner barrel 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, reverse suction is destroyed, air pressure balance is ensured, and washing water is prevented from being sucked into a tap water pipe network.

The drum washing machine of this embodiment includes driving motor 16 and inner tube axle 13, driving motor 16 drive inner tube 17 rotation through interior tube axle 13 and inner tube 17 transmission connection, pressure boost pore 28 and/or pressure release pore 30 set up on inner tube axle 13 intercommunication inner tube 17 inside and external environment, the highest water level in inner tube 17 is less than inner tube axle 13.

The drum washing machine of this embodiment includes the urceolus 18, the inner tube 17 set up in urceolus 18 inside, the water that discharges in the inner tube 17 is discharged through urceolus 18, the drum mouth installation of inner tube 17 seals the inner tube door 6 of inner tube, the drum mouth of urceolus 18 is opened, the one end intercommunication inner tube 17 inside of pressure boost pore canal 28 and/or pressure release pore canal 30, the other end sets up in urceolus 18 inside and communicates with each other.

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 the 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 pore canal 30 and the hollow channel 14 are respectively communicated with the inner part of the inner cylinder 17 and are mutually isolated.

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 channel 30 includes a first channel section and a second channel section, the first channel section is parallel to the hollow channel, one end of the first channel section is communicated with the inner cylinder, one end of the second channel section is communicated with the first channel section, and the other end extends to the outer peripheral wall of the inner cylinder shaft to be communicated with the inner part of the outer cylinder;

Preferably, the second duct section is perpendicular to the first duct section 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 the inner drum shaft 13, and the water inlet pipeline is communicated with the hollow channel 14 of the inner drum shaft 13; the plenum duct 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 passage 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 plenum 28 is disposed perpendicular to the hollow passage 14.

The inner cylinder shaft is connected with a 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 and is communicated with the hollow channel of the inner cylinder shaft.

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

It may be mentioned that the preferred pressurizing duct 28 and the pressure releasing duct 30 are both provided on the inner cylinder shaft 13, and the communicating atmosphere openings are both inside the outer cylinder 18; the openings of the capsule communicating with the inner tube 17 are all inside the capsule.

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

The foregoing description is only illustrative of the preferred embodiment of the present invention, and is not to be construed as limiting the invention, but is to be construed as limiting the invention to any and all simple modifications, equivalent variations and adaptations of the embodiments described above, which are within the scope of the invention, may be made by those skilled in the art without departing from the scope of the invention.

Claims

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

A body having an accommodating chamber therein;

the centrifugal drainage assembly comprises a sealing plunger capable of reciprocating and an elastic piece for elastically resetting the sealing plunger, wherein the body is provided with a plunger seat for installing the sealing plunger, and the elastic piece is kept limited in the plunger seat in the reciprocating process of the sealing plunger;

The sealing plunger comprises a sealing column and a sealing plug arranged at one end of the sealing column, the elastic piece is a spring, one end of the spring is stopped against the inner wall of the plunger channel, the other end of the spring is stopped against the sealing column, a certain interval is reserved between the position of the spring stopped against the sealing column and the sealing plug, and the interval is greater than or equal to the displacement distance of the sealing plug from a closed state to a drainage state.

2. The laundry lifting apparatus for a washing machine according to claim 1, wherein,

The body includes: a lifting housing having an open cavity therein;

3. The laundry lifting apparatus for a washing machine according to claim 2, wherein,

The plunger seat comprises a plunger hole column penetrating through the plunger through hole and a support arranged at one end of the plunger hole column outside the accommodating cavity, and the plunger channel penetrates through the plunger hole column.

4. A laundry lifting apparatus for a washing machine as claimed in claim 3, wherein,

The sealing column comprises a guide part and a mounting part positioned at one end of the guide part, the guide part can be mounted in the plunger channel in a reciprocating manner, the sealing plug is mounted on the mounting part, the support is of an annular structure with a hollow channel communicated with the plunger channel, and the projection height of the mounting part on the reciprocating motion path is greater than or equal to the projection height of the support on the reciprocating motion path.

5. The laundry lifting apparatus for a washing machine according to claim 4, wherein,

The guide part is a cylindrical first column, the installation part is a cylindrical second column positioned at one end of the first column, the diameter of the first column is smaller than that of the second column, and the spring is stopped on the end face of the second column.

6. A laundry lifting apparatus for a washing machine as claimed in claim 3, wherein,

The centrifugal drainage assembly comprises a centrifugal piece which generates centrifugal motion under the action of centrifugal force, the centrifugal piece comprises a connecting part and a counterweight part, one end of the connecting part is connected with the counterweight part, the other end of the connecting part is rotatably connected with the sealing plunger, and the middle part of the connecting part is rotatably arranged on the plunger seat to form a lever structure.

7. The laundry lifting apparatus for washing machine according to claim 6, wherein,

The connecting part is a connecting rod, the counterweight part is a counterweight, the plunger hole column is provided with an extension part extending towards the counterweight part, and the middle part of the connecting rod is rotatably connected with the extension part through a rotating shaft.

8. A drum washing machine having a laundry lifting device for a washing machine as claimed in any one of claims 1 to 7, comprising: an inner cylinder;

9. The drum type washing machine as claimed in claim 8, wherein a fixing hole for fixing the lifting device is formed at a side wall of the inner tub near the drain opening, and the lifting device is hermetically fixed to the fixing hole through a connection member.