WO2020182014A1 - Machine à laver à tambour - Google Patents

Machine à laver à tambour Download PDF

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Publication number
WO2020182014A1
WO2020182014A1 PCT/CN2020/077542 CN2020077542W WO2020182014A1 WO 2020182014 A1 WO2020182014 A1 WO 2020182014A1 CN 2020077542 W CN2020077542 W CN 2020077542W WO 2020182014 A1 WO2020182014 A1 WO 2020182014A1
Authority
WO
WIPO (PCT)
Prior art keywords
sealing
inner cylinder
wall
washing machine
mounting member
Prior art date
Application number
PCT/CN2020/077542
Other languages
English (en)
Chinese (zh)
Inventor
吕佩师
赵志强
许升
Original Assignee
青岛海尔滚筒洗衣机有限公司
海尔智家股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN201910189945.5A external-priority patent/CN111691147B/zh
Priority claimed from CN201910189961.4A external-priority patent/CN111691128B/zh
Application filed by 青岛海尔滚筒洗衣机有限公司, 海尔智家股份有限公司 filed Critical 青岛海尔滚筒洗衣机有限公司
Priority to JP2021554773A priority Critical patent/JP7293388B2/ja
Publication of WO2020182014A1 publication Critical patent/WO2020182014A1/fr

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    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F23/00—Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry 
    • D06F23/02—Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry  and rotating or oscillating about a horizontal axis
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F35/00—Washing machines, apparatus, or methods not otherwise provided for
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/08—Liquid supply or discharge arrangements

Definitions

  • the present invention relates to the technical field of laundry equipment, in particular to a drum washing machine.
  • washing machine helps people get rid of the trouble of laundry and brings great convenience to people.
  • washing machines also have certain shortcomings, such as longer time-consuming and larger water consumption.
  • water resources are becoming more and more important as an important natural resource, and people’s awareness of water saving also changes. Therefore, how to realize the water-saving function of the washing machine becomes particularly important.
  • the patent number is 201410215346.3, which is a Chinese invention patent of a drum washing machine.
  • the invention relates to a drum washing machine, including a cabinet with an inner The cylinder and the outer cylinder, a door seal is provided between the outer cylinder and the box body, the inner cylinder is connected with the drive device, the inner cylinder is a non-porous inner cylinder, and the inner cylinder has a small diameter at the bottom of the cylinder and the mouth of the cylinder. A cone with a large diameter. The mouth of the inner cylinder is curved inward.
  • the door seal is provided with a water inlet pipe.
  • the inner cylinder of the present invention is a non-porous inner cylinder. Water can be fed into the inner cylinder through the water inlet pipe provided on the door seal, and water can be discharged during the dehydration process through the shape of the inner cylinder, which can avoid Water is stored between the inner and outer cylinders, which greatly saves washing water consumption.
  • the above-mentioned invention provides a drum washing machine with a non-porous inner tub, but only the inner drum of the existing drum washing machine is designed as a non-porous structure, which has little practical significance. Because laundry must be soaked in a certain amount of washing water, if the soaking effect is to be achieved, a certain amount of water needs to be stored in the non-porous inner cylinder, which will increase the burden on the motor and cause problems such as power consumption.
  • the drum washing machine disclosed in the patent uses a door seal. Since the main function of the door seal is to seal the opening of the outer drum of the washing machine, setting a water inlet duct on the door seal easily affects the sealing effect of the door seal. It is realized, and the patent cannot realize the detection of the water inlet level in the inner cylinder.
  • the purpose of the present invention is to provide a drum washing machine. Specifically, the following technical solutions are adopted:
  • a drum washing machine including:
  • Inner tube independently holding washing water when washing clothes
  • the drain port of the inner cylinder is opened on the inner cylinder for draining washing water
  • the drainage port of the installation part is opened on the installation part and communicates with the drainage port of the inner cylinder;
  • the sealing drainage device includes a plugging component for plugging the drainage port of the mounting member.
  • the mounting member is in a sealed connection with the inner cylinder wall
  • the drainage port of the inner cylinder is provided on the inner wall of the inner cylinder, and the mounting member includes a connecting portion, and the connecting portion is in a sealed connection with the inner cylinder wall on the outer periphery of the drainage port of the inner cylinder.
  • the mounting part includes a flat part, and the drainage port of the mounting part is opened on the flat part.
  • the mounting member further includes an end cover part, two opposite side walls of the flat part are kept in a sealed connection with the inner wall of the inner cylinder, and the other two opposite side walls of the flat part are respectively connected to the end cover parts. Keep a sealed connection with the inner wall of the inner cylinder;
  • the flat part and the end cover part are integrally formed.
  • a sealing fitting part is provided on the outer periphery of the drainage port of the mounting part, which is in sealing cooperation with the blocking part;
  • the sealing mating portion is at least one ring of sealing ribs arranged on the outer periphery of the drainage port, and the sealing ribs are in sealing contact with the sealing portion of the blocking component.
  • the blocking component is provided with a first sealing component, and the first sealing component extends into At least one cross-sectional outer peripheral wall of the mounting member extends inside the wall and the inner peripheral wall of the mounting member extension wall maintains sealing contact.
  • first sealing member is in surface contact or line contact with the inner peripheral wall of the extension wall of the mounting member and seals the drainage port of the mounting member;
  • the first sealing member is a tapered or truncated cone-shaped sealing plug whose cross-sectional area gradually increases from the proximal end to the distal end relative to the drainage port of the mounting member, and the extension wall of the mounting member is A truncated cone-shaped peripheral wall whose internal cross-sectional area gradually decreases from the flat part to the direction away from the central axis of the inner cylinder.
  • a clothes lifting device is provided on the inner wall of the inner cylinder, and the clothes lifting device has an inner chamber and a communication hole connecting the inner chamber and the inner cylinder, and the drainage port is opened in the inner chamber.
  • the installation parts and the sealing drainage device are all arranged in the internal cavity.
  • the lifting device is a lifting rib
  • the lifting rib has a lifting rib base installed on the inner wall of the inner cylinder and a lifting rib convex portion protruding into the inner cylinder, and the communication hole is provided at the lifting rib convex portion
  • the mounting member is circumferentially sealed to the base of the lifting rib.
  • the sealed drainage device further includes a centrifugal component that moves under the action of the centrifugal force of the rotation of the inner cylinder; the centrifugal component is connected with the blocking component, and the centrifugal movement of the centrifugal component drives the blocking component to open the drainage port of the installation component.
  • a drum washing machine including:
  • Inner tube independently holding washing water when washing clothes
  • the assembly port is opened on the inner cylinder
  • the drainage port of the installation part is opened on the installation part
  • the sealing drainage device includes a plugging component for plugging the drainage port of the mounting member.
  • the assembling through opening is opened on the arc-shaped wall of the inner cylinder, the mounting member includes a connecting part, and the connecting part is in a sealed connection with the inner peripheral wall of the assembling through opening.
  • the mounting part includes a flat part, and the drainage port of the mounting part is opened on the flat part.
  • a sealing fitting part is provided on the outer periphery of the drainage port of the mounting member, which is in sealing cooperation with the blocking part;
  • the sealing mating portion is at least one ring of sealing ribs arranged on the outer periphery of the drainage port of the mounting member, and the sealing ribs are in sealing contact with the blocking component.
  • the plugging component has a sealing convex portion for circumferential contact sealing, and the sealing convex portion maintains sealing contact with the flat portion of the outer periphery of the drainage port of the mounting member;
  • a sealing element is arranged on the plugging component, the sealing element has a sealing convex part for contact and sealing, and the sealing convex part keeps sealing contact with the flat part of the outer periphery of the drainage port of the installation part.
  • the blocking component is provided with a first sealing component, and the first sealing component extends into In the extension wall of the mounting member, at least one cross-sectional outer peripheral wall and the inner peripheral wall of the extension wall of the mounting member maintain circumferential sealing contact.
  • first sealing member is in surface contact or line contact with the inner peripheral wall of the extension wall of the mounting member and seals the drainage port of the mounting member;
  • the first sealing member is a tapered or truncated sealing plug whose cross-sectional area gradually increases from the proximal end to the distal end relative to the drainage port of the mounting member, and the mounting member extends wall It is a truncated cone-shaped peripheral wall whose internal cross-sectional area gradually decreases along the flat part away from the central axis of the inner cylinder.
  • a clothing lifting device is provided on the inner wall of the inner cylinder, the clothing lifting device has an internal cavity and a communication hole that communicates the internal cavity and the interior of the inner cylinder, and the assembly opening is opened in the inner cavity.
  • the sealed drainage device is arranged in the inner cavity.
  • the sealed drainage device further includes a centrifugal component that moves under the action of the centrifugal force of the rotation of the inner cylinder; the centrifugal component is connected with the blocking component, and the centrifugal movement of the centrifugal component drives the blocking component to open the drainage port of the installation component .
  • the centrifugal component includes a counterweight and a connecting piece, one end of the connecting piece is connected with the counterweight, the other end is connected with the blocking component, and the middle of the connecting piece has a shaft hole rotatably installed on the shaft;
  • the drum washing machine of the present invention includes an inner tube for independently holding washing water when washing clothes.
  • the inner tube adopts a non-porous inner tube design.
  • the inside is a closed chamber with vents.
  • the washing machine can be independently held during washing and rinsing.
  • For washing water there is no water between the inner tube and the outer tube, so as to save water, while avoiding the formation of dirt between the inner tube and the outer tube, keeping the tube wall clean, and improving the user experience; drainage is provided on the inner tube of the washing machine Mouth, from which it drains during drainage and/or dehydration.
  • the drum washing machine of the present invention includes an inner tube for independently holding washing water when washing clothes.
  • the inner tube adopts a non-porous inner tube design.
  • the inside is a closed chamber with vents.
  • the washing machine can be independently held during washing and rinsing.
  • For washing water there is no water between the inner tube and the outer tube, so as to save water, while avoiding the formation of dirt between the inner tube and the outer tube, keeping the tube wall clean, and improving the user experience; drainage is provided on the inner tube of the washing machine Mouth, from which it drains during drainage and/or dehydration.
  • a mounting member is installed on the inner wall of the inner cylinder, and the mounting member has a drainage port of the mounting member communicating with the drainage port of the inner cylinder.
  • the drainage port of the inner cylinder can be sealed by blocking the drainage port of the mounting member by the sealing drainage device.
  • the sealing assembly of the sealing drainage device is realized through the mounting part, and the mounting structure is simple, and since the mounting part has a flat part that is sealed and matched with the blocking component, the sealing effect is better.
  • Fig. 1 is a schematic diagram of the principle of a drum washing machine in an embodiment of the present invention
  • Fig. 2 is a schematic diagram of the principle of the drum washing machine in the second embodiment of the present invention (Embodiment 1);
  • Fig. 3 is a schematic diagram of the principle of the drum washing machine in the second embodiment of the present invention (the second embodiment);
  • Fig. 4 is a schematic diagram of the principle of the drum washing machine in the second embodiment of the present invention (the third embodiment);
  • Fig. 5 is a schematic diagram of the principle of the drum washing machine in the third embodiment of the present invention.
  • Figure 6 is a partial enlarged view of Figure 5 (pressure relief state) of the drum washing machine in the third embodiment of the present invention.
  • Figure 7 is a partial enlarged view of Figure 5 (pressurized state) of the drum washing machine in the third embodiment of the present invention.
  • Fig. 8 is a schematic diagram of the principle of a drum washing machine in the fourth embodiment of the present invention.
  • Fig. 9 is a partial enlarged view in Fig. 8 of the fourth drum washing machine of the embodiment of the present invention (pressure relief state in the first embodiment);
  • Fig. 10 is a partial enlarged view in Fig. 8 of the fourth drum washing machine of the embodiment of the present invention (pressurization state in the first embodiment);
  • Fig. 11 is a partial enlarged view in Fig. 8 of the fourth drum washing machine of the embodiment of the present invention (pressure relief state of the second embodiment);
  • Fig. 12 is a partial enlarged view in Fig. 8 of the fourth drum washing machine of the embodiment of the present invention (pressurization state in the second embodiment);
  • Figure 13 is a schematic diagram of the principle of the five to nine drum washing machines of the embodiments of the present invention.
  • Fig. 14 is a schematic diagram of the working principle of the sealed drainage device installed on the drum washing machine in the fifth and sixth embodiments of the present invention.
  • Fig. 15 is a partial enlarged view of Fig. 14 of the sealed drainage device of the fifth and sixth embodiments of the present invention.
  • Fig. 16 is a partial enlarged view of another embodiment of Fig. 14 of the fifth and sixth sealed drainage devices of the present invention.
  • Figure 17 is an exploded view of the fifth and sixth sealed drainage devices of the present invention.
  • Figure 19 is a partial enlarged view of Figure 18 of the sealed drainage device of the seventh embodiment of the present invention.
  • Fig. 20 is a partial enlarged view of another embodiment of Fig. 18 of the seventh embodiment of the present invention.
  • Figure 21 is an assembly diagram of the sealing drainage device and the lifting rib of the drum washing machine in the seventh embodiment of the present invention.
  • Fig. 22 is a schematic structural view of the inner drum assembly of the drum washing machine, the sealing drainage device, and the washing machine lifting rib in the seventh embodiment of the present invention
  • Figure 23 is a schematic diagram of the working principle of the eighth embodiment of the present invention where the sealed drainage device is installed on the drum washing machine;
  • Fig. 24 is a schematic diagram of the working principle of another embodiment in which the sealed drainage device is installed on the drum washing machine in the eighth embodiment of the present invention.
  • Figure 25 is a partial enlarged view of Figures 23 and 24 of the eighth sealed drainage device of the present invention.
  • Figure 26 is a schematic diagram of the working principle of the sealing drainage device installed on the drum washing machine in the ninth embodiment of the present invention.
  • Fig. 27 is a partial enlarged view of Fig. 26 of the sealed drainage device of the ninth embodiment of the present invention.
  • this embodiment provides a front-opening drum washing machine with a non-porous inner tub.
  • the structure is simple and can greatly reduce the need for filling washing/rinsing water between the inner tub and the outer tub.
  • the washing water consumption of the washing machine The possibility of dirt adhesion between the inner cylinder and the outer cylinder is avoided.
  • the drum washing machine of this embodiment has a housing 19, which includes: an upper panel 2, a front panel, a back panel and a bottom plate. A foot 9 is fixed on the bottom plate to support the entire washing machine.
  • the housing 19 has an outer cylinder 18 inside, and an inner cylinder 17 is coaxially arranged in the outer cylinder 18.
  • the main purpose of the outer cylinder 18 is to collect the drainage from the inner cylinder 17 and the drainage from the high-speed centrifugal dehydration of the inner cylinder 17.
  • the inner cylinder 17 rotates.
  • a lifting rib 43 is provided to continuously lift and drop and beat the clothes, so as to wash the clothes.
  • the inner cylinder 17 has a non-porous structure.
  • the outer cylinder 18 has a central mounting hole, and the bearing 12 is installed and fixed.
  • the inner cylinder shaft 13 tightly connected to the inner cylinder 17 passes through the bearing 12 shown and is connected to the drive motor 16.
  • An openable/closable inner cylinder door 6 is installed on the front mouth of the inner cylinder 17, thereby realizing the inner cylinder 17 as a sealed cabin structure.
  • a door 5 that can be opened/closed is installed on the housing 19 of this embodiment.
  • This embodiment mainly solves the problem of how to accurately determine the amount of water in the drum washing machine without holes.
  • the specific solution is as follows:
  • a drum washing machine comprising an inner tub 17 and a water inlet pipe connected to the inner tub 17.
  • the inner tub 17 is a non-porous inner tub for containing washing water when washing clothes, and the water inlet pipe is provided with Flow sensor 1 for detecting the inflow water flow.
  • a flow sensor 1 is installed on the water inlet pipe to monitor the flow rate when the water enters. When the set water inlet amount is reached, the water inlet valve 20 is closed to complete the water inlet.
  • the flow sensor is used to solve the water inflow problem of the non-porous inner drum washing machine according to the set water level, ensuring the washing effect, simple structure, and convenient operation.
  • 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.
  • the outlet end of the water inlet valve 20 passes through the first water inlet pipe.
  • the detergent box 3 is connected, and the outlet end of the detergent box 3 is connected to the inner cylinder 17 through a second water inlet pipe, and the flow sensor 1 is arranged on the first water inlet pipe or the second water inlet pipe.
  • the flow sensor 1 is arranged 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 this embodiment includes a main controller 4, and the flow sensor 1 and the main controller 4 are electrically connected 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 close the water inlet valve 20.
  • 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.
  • the flow sensor 1 can be arranged at any position on the water inlet pipeline of this embodiment, and it is preferably arranged at the rear of the water inlet valve 20 to accurately measure the water flow into the sealed inner cylinder 17.
  • the flow sensor 1 is connected to the main controller 4 ,
  • the main controller 4 can collect the water intake of the inner cylinder 17 in real time to reach the set water intake, and close the water intake valve 20.
  • the drum washing machine of this embodiment includes a drive motor 16 and an inner drum shaft 13.
  • the drive motor 16 drives the inner drum through a transmission connection between the inner drum shaft 13 and the inner drum 17.
  • the barrel 17 rotates, the inner barrel shaft 13 has a hollow channel 14 communicating with the inside of the inner barrel 17, and the water inlet pipe communicates with the hollow channel of the inner barrel shaft 13.
  • the inner cylinder shaft 13 is connected to a driving motor 16.
  • the driving motor 16 includes a stator and a rotor, and the rotor is fixedly connected to the inner cylinder shaft 13; a through hole is provided at the center of the rotor, and the water inlet pipe passes through The through hole of the rotor communicates with the hollow channel 14 of the inner cylinder shaft 13.
  • first dynamic sealing structure 15 is provided between the water inlet pipe and the through hole of the rotor, and a second sealing structure is provided between the through hole of the rotor and the hollow passage 14 of the inner cylinder shaft 13.
  • the drum washing machine of this embodiment includes an outer tub 18, an inner tub drain hole is provided on the side wall of the inner tub 17, and a normally closed one-way valve plug 11 is installed on the inner tub drain hole.
  • the said outer cylinder 18 is provided with a jack mechanism 10 for pushing the one-way valve plug 11 to drain water.
  • the outer cylinder 18 is also provided with a locking mechanism for locking the inner cylinder 17 from rotating. After the inner cylinder is locked by the locking mechanism, the ejector mechanism 10 pushes the one-way valve plug 11 open for drainage.
  • a plurality of dehydration holes are opened on the side wall of the inner cylinder 17 in this embodiment, and centrifugal valves are installed on the dehydration holes.
  • the centrifugal valves are opened under the action of the centrifugal force of the dehydration to perform dehydration. drain.
  • This embodiment also provides a method for controlling the drum washing machine.
  • the washing machine executes the washing/rinsing procedure.
  • the flow sensor detects the water intake flow value in real time.
  • the washing machine calculates the water intake according to the water intake flow value and the water intake time. , When the water inflow reaches the set water inflow of the washing machine, stop the water inflow.
  • the drum washing machine is provided with multiple inlet water flow values that can be selected by the user, and the washing machine performs water inlet according to the inlet water flow value selected by the user.
  • the drum washing machine has a laundry weighing function, which can determine the flow value of the inlet water according to the weight of the laundry.
  • a drum washing machine of this embodiment includes an inner tube 17 and a water inlet pipe.
  • the inner tube is a non-porous inner tube, which holds washing water when washing clothes, and also includes
  • the water inlet pipeline is connected to the water measuring device, and the water measuring device is connected to the inner cylinder.
  • the drum washing machine of this embodiment is provided with a water measuring device, which enters the water measuring device for quantitative measurement before water is poured into the inner tub 1, and determines the number of times the water measuring device measures water according to the set water level, thereby solving
  • the non-porous inner drum drum washing machine ensures the washing effect according to the water inlet problem of the set water level, and has a simple structure and convenient operation.
  • the water measuring device of this embodiment includes a water measuring tank 21, which has a water inlet and a water outlet, the water inlet is connected to the water inlet pipe, and the water outlet is connected to the inner cylinder 17;
  • a water outlet control device that controls the opening of the water outlet.
  • the water measuring tank 21 is provided at the bottom of the inner cylinder 17, and the water measuring device includes a water level detecting device 22 for detecting the water measuring 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 when the water level detection device 22 detects that the water level in the water measuring tank 21 reaches a set value.
  • the water is pumped into the inner cylinder 17.
  • the water measuring tank 21 is arranged on the upper part of the inner cylinder 17, and 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.
  • the water tank drain valve 25 opens when the water level detection device 22 detects that the water level in the water measuring tank 21 reaches a set value, and discharges the water in the water measuring tank 21 into the inner cylinder. .
  • the water level detection device 22 in this embodiment is a liquid level sensor.
  • the liquid level sensor includes an air chamber and a sensor unit, and the air chamber is connected to a water measuring tank.
  • the water level detection device 22 includes a plurality of water level detection probes arranged in the water measuring tank and arranged along the depth direction thereof.
  • the water measuring tank 21 is arranged on the upper part of the inner cylinder 17, the water outlet is arranged on the bottom wall of the water measuring tank 21, and the water outlet control device is to keep the water outlet normally closed.
  • the water tank check valve when the water volume in the water tank reaches a certain value, the water tank check valve opens under water pressure gravity, and the water in the water measuring tank 21 is discharged into the inner cylinder 17, and the water tank check valve resets 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 leading out the overflowing water in the water measuring tank.
  • the drum washing machine includes a drain pipe 8, and the overflow pipe is connected to the drain pipe 8.
  • the water measuring device includes a heating device 26 arranged in the water measuring tank 21 and a water temperature detecting device for detecting the water temperature in the water measuring tank.
  • This embodiment also provides a method for controlling the drum washing machine.
  • the washing machine executes the washing/rinsing process, and the washing machine controls the washing water to enter the water metering tank.
  • the water supply is stopped and the metering All the water in the water tank is discharged into the inner cylinder, and the water is started again to enter the water measuring tank, and the cycle is repeated until the water level in the inner cylinder reaches the set value, and the water inflow is ended.
  • the washing machine controls the washing water to enter the measuring water tank.
  • the water volume in the equivalent water tank reaches the set value, it stops the water intake and controls the heating device to run to heat the washing water.
  • the water temperature detection device detects that the water temperature in the measuring water tank reaches When setting the value, drain all the water in the water measuring tank into the inner cylinder.
  • This embodiment mainly solves the problem of how the non-porous inner drum drum washing machine guarantees the unbalanced air pressure of the sealed compartment, specifically, the sudden water cut off of the solenoid valve, especially the water cut off of the tap water pipe network, forms a negative pressure, and returns the washing water in the sealed compartment Wash to the pipe network; or there is gas inside and difficult to enter water.
  • a drum washing machine of this embodiment includes an inner tube 17, which is a non-porous inner tube, which contains washing water when washing clothes, and also includes an inner tube 17 for connecting the inner tube 17 with the outside world.
  • the air pressure balance mechanism that balances the air pressure inside the inner cylinder.
  • the gas in the sealed compartment of the inner cylinder can overflow through the equalizing mechanism under pressure to ensure air pressure balance.
  • the air pressure balance mechanism can also ensure the air pressure balance of the inner cylinder.
  • the air pressure balancing mechanism includes a pressure equalizing channel 27 provided on the inner cylinder 17, and one end of the pressure equalizing channel 27 connected to the inner cylinder 17 is provided on the inner cylinder 17 close to rotating The position of the central axis is always higher than the highest water level in the inner cylinder 17.
  • the drum washing machine of this embodiment includes a driving motor 16 and an inner drum shaft 13.
  • the driving motor 16 drives the inner drum 17 to rotate through a transmission connection between the inner drum shaft 13 and the inner drum 17, and the pressure equalizing channel 27 is opened in the inner drum.
  • the shaft 13 communicates the inside of the inner cylinder 17 with the external environment, and the highest water level in the inner cylinder 17 is lower than the inner cylinder shaft 13. In this way, the water in the inner cylinder can be prevented from flowing out of the pressure equalizing channel.
  • the drum washing machine of this embodiment includes an outer tub 18.
  • the inner tub 17 is arranged inside the outer tub 18.
  • the water discharged from the inner tub 17 is discharged through the outer tub 18.
  • the mouth of the inner tub 17 is installed to close the inner tub.
  • the cylinder mouth of the outer cylinder 18 is open, one end of the pressure equalization channel 27 is connected to the inside of the inner cylinder 17, and the other end is arranged inside the outer cylinder 18 to communicate with it. In this way, to prevent extreme situations, the water from the hole can also be collected in the outer cylinder 18.
  • the inner cylinder 17 has an inner cylinder drain hole on the side wall of this embodiment, a normally closed one-way valve plug 11 is installed on the inner cylinder drain hole, and the outer cylinder 18 is installed for the one-way valve The plug 11 pushes open the ejector mechanism 10 for draining water.
  • the outer cylinder 18 is also provided with a locking mechanism for locking the inner cylinder from rotating. After the locking mechanism locks the inner cylinder, the ejector mechanism pushes the one-way valve plug to drain.
  • the hollow passage 27 extends from one end to the other along the direction of the central axis of the inner cylinder shaft
  • the pressure equalization channel includes a first channel section and a second channel section, and the first channel section is parallel to the hollow channel.
  • One end is connected to the inside of the inner cylinder
  • one end of the second channel section is connected to the first channel section
  • the other end extends to the outer circumference of the inner cylinder shaft and communicates with the inside of the outer cylinder.
  • the second channel section is perpendicular to the first channel section to form an L-shaped pressure equalizing channel.
  • the inner cylinder shaft 13 is connected to a driving motor 16.
  • the driving motor 16 includes a stator and a rotor, and the rotor is fixedly connected to the inner cylinder shaft; a through hole is provided at the center of the rotor, and the water inlet pipe passes through the rotor. The through hole is communicated with the hollow channel of the inner cylinder shaft.
  • a first dynamic sealing structure is provided between the water inlet pipe and the through hole of the rotor, and a second sealing structure is provided between the through hole of the rotor and the hollow passage of the inner cylinder shaft.
  • a plurality of dehydration holes are opened on the side wall of the inner tub 17, and centrifugal valves are installed on the dehydration holes, and the centrifugal valves are opened under the action of the dehydration centrifugal force to perform dehydration and drainage.
  • This embodiment mainly solves the problem of how to ensure the air pressure imbalance in the sealed compartment of the non-porous inner drum washing machine, specifically, the sudden water cut of the solenoid valve, especially the water cut of the water pipe network, forms a negative pressure, and returns the washing water in the sealed compartment Wash to the pipe network; or there is gas inside and difficult to enter water.
  • the drum washing machine of this embodiment includes an inner tube 17, which is a non-porous inner tube, which contains washing water when washing clothes, and also includes a tube for connecting the inner tube with the external environment.
  • the pressurizing mechanism described in this embodiment includes a pressurizing port 28 and a negative pressure safety valve 29.
  • the negative pressure safety valve 29 is provided on the pressurizing port 28 and is used when the internal pressure of the inner cylinder 17 is lower than the atmospheric pressure of the external environment. Guided through the pressurizing channel 28, the ambient air enters the inner cylinder 17 through the pressurizing channel 28 to be pressurized until the internal air pressure of the inner cylinder 17 is balanced with the ambient air pressure, and the negative pressure safety valve 29 is closed.
  • the pressure relief mechanism described in this embodiment includes a pressure relief port 30 and a positive pressure safety valve 31.
  • the pressure relief port 30 is arranged on the inner cylinder 17 at a position close to the central axis of rotation and is always higher than the highest in the inner cylinder 17.
  • the positive pressure safety valve 31 is set on the pressure relief port 30, and is used to release the pressure through the one-way pressure relief port 30 when the internal pressure of the inner cylinder 17 is greater than the atmospheric pressure of the outside environment, until the internal pressure of the inner cylinder 17 and the outside The ambient air pressure is balanced, and the positive pressure safety valve 31 is closed.
  • the air pressure balance mechanism can also ensure the air pressure balance of the inner cylinder.
  • the drum washing machine of this embodiment includes a driving motor 16 and an inner drum shaft 13.
  • the driving motor 16 drives the inner drum 17 to rotate through a transmission connection between the inner drum shaft 13 and the inner drum 17, and the pressurization channel 28 and/or drain
  • the pressure channel 30 is opened on the inner cylinder shaft 13 to communicate the inside of the inner cylinder 17 with the external environment, and the highest water level in the inner cylinder 17 is lower than the inner cylinder shaft 13.
  • the drum washing machine of this embodiment includes an outer tub 18, the inner tub 17 is arranged inside the outer tub 18, the water discharged from the inner tub 17 is discharged through the outer tub 18, and an inner tub that closes the inner tub is installed at the mouth of the inner tub 17 Door 6, the cylinder mouth of the outer cylinder 18 is open, one end of the pressure-increasing channel 28 and/or the pressure-relief channel 30 communicates with the inner cylinder 17, and the other end is arranged inside the outer cylinder 18 to communicate with it.
  • the drum washing machine of this embodiment includes a water inlet pipe, the inner barrel shaft 13 has a hollow channel 14 communicating with the inner barrel 17, and the water inlet pipe communicates with the hollow channel 14 of the inner barrel shaft 13;
  • the pressure relief channel 30 and the hollow channel 14 are respectively communicated with the inner cylinder 17 and are separated from each other.
  • the hollow passage 14 extends from one end to the other along the central axis direction of the inner cylinder shaft 13.
  • the pressure relief port 30 includes a first port section and a second port section.
  • the channel section is arranged in parallel with the hollow channel, one end of which is connected to the inner cylinder, one end of the second channel section is connected to the first channel section, and the other end extends to the outer circumference of the inner cylinder shaft and communicates with the inside of the outer cylinder;
  • the second tunnel section is perpendicular to the first tunnel section to form an L-shaped pressure relief tunnel.
  • the drum washing machine of this embodiment includes a water inlet pipe, the inner barrel shaft 13 has a hollow channel 14 communicating with the inner barrel 17, and the water inlet pipe communicates with the hollow channel 14 of the inner barrel shaft 13;
  • the pressurizing port 28 is communicated with the hollow passage 14.
  • the hollow passage 14 extends from one end to the other end along the central axis of the inner cylinder shaft 13, one end of the pressurizing channel 28 is connected to the hollow passage 14, and the other end extends to the outer circumference of the inner cylinder shaft 13.
  • the inner cylinder wall communicates with the inside of the outer cylinder 18.
  • the pressurizing channel 28 and the hollow channel 14 are arranged perpendicular to each other.
  • the inner cylinder shaft is connected to a drive motor
  • the drive motor includes a stator and a rotor
  • the rotor is fixedly connected to the inner cylinder shaft
  • a through hole is provided at the center of the rotor, and the water inlet pipe passes through the through hole of the rotor It communicates with the hollow channel of the inner cylinder shaft.
  • a first dynamic sealing structure is provided between the water inlet pipe and the through hole of the rotor, and a second sealing structure is provided between the through hole of the rotor and the hollow passage of the inner cylinder shaft.
  • the pressure-increasing channel 28 and the pressure-relief channel 30 are both arranged on the inner cylinder shaft 13, and the openings that communicate with the atmosphere are all inside the outer cylinder 18; the openings of the sealed compartments that communicate with the inner cylinder 17 are all in the inner cylinder
  • the shaft 13 is inside the water inlet channel 14.
  • the preferred pressure-increasing channels 28 and pressure-relief channels 30 are both arranged on the inner cylinder shaft 13, and the openings that communicate with the atmosphere are both inside the outer cylinder 18; the openings of the sealed compartments that communicate with the inner cylinder 17 are all inside the sealed compartment.
  • the drum washing machine of this embodiment includes an inner tube 17 that independently holds washing water when washing clothes.
  • the inner tube 17 adopts a non-porous inner tube design, and the inside is a closed chamber with vents during washing. ,
  • the washing machine can hold the washing water independently during washing and rinsing.
  • the inner tub 17 of the washing machine is provided with a drainage port 39, which drains water during the drainage and/or dehydration process.
  • This embodiment discloses a sealed drainage device suitable for the above-mentioned drum washing machine, including:
  • the centrifugal component moves under the centrifugal force of the rotation of the inner cylinder 17;
  • the centrifugal component is connected with the blocking component, and the centrifugal movement of the centrifugal component drives the blocking component to open the drain.
  • the sealed drainage device provided in this embodiment uses the centrifugal force of the inner cylinder 17 to drive the centrifugal component to perform centrifugal movement, and the centrifugal component drives the blocking component to move to open the drainage port, thereby realizing drainage: in principle, using the working characteristics of the drum washing machine, through the design Drainage can be realized by fixing the rotating speed of the inner cylinder, which is easy to realize; in terms of structure, the blocking part is opened by the centrifugal movement of the centrifugal part to realize drainage, and the structure is simple.
  • the sealed drainage device of the present application aims at keeping the drain port closed during washing and rinsing of a drum washing machine with a non-porous inner tub to realize independent water storage in the non-porous inner tub, and realizes centrifugation by controlling the rotation speed of the inner tub during drainage and/or dehydration. Drainage realizes the sealing and drainage problems of drum washing machines with non-porous inner tubs.
  • the centrifugal component and the plugging component described in this embodiment can both reciprocate along the radial direction of the inner cylinder 17, and the plugging component is driven by the centrifugal component and interacts with the centrifugal component.
  • the direction of centrifugal movement is the same or opposite.
  • the centrifugal component moves along the radial direction of the inner cylinder and away from the central axis of the inner cylinder under the action of the centrifugal force of the inner cylinder rotating.
  • the plugging component moves along the radial direction of the inner cylinder and close to the central axis of the inner cylinder. In this way, the movement of the plugging component and the centrifugal component in the radial direction of the inner cylinder coincide with each other, reducing the difference between the two The total movement stroke along the radial direction of the inner cylinder reduces the installation space.
  • the plugging component of this embodiment includes a plugging member and an elastic member 43.
  • the elastic member 43 acts on the plugging member to keep the plugging member to seal and block the drainage port 39, and the centrifugal member is connected to the sealing member. Blocking part, the centrifugal movement of the centrifugal component drives the blocking part to move to open the drain.
  • the elastic member 43 of this embodiment generates an elastic pre-tightening force on the blocking member to keep the blocking member blocking the drainage port and keeping the inner cylinder closed to contain the washing water.
  • this embodiment can be implemented in the following manner:
  • the plugging component and the drain port 39 are in direct sealing contact to seal the drain port 39, for example, the plugging component and the drain port 39 are directly electromagnetically sealed or rigidly sealed.
  • the sealing member 40 makes a sealing contact with the drain port 39 to block the drain port 39, and the drain port 39 is sealed by the seal member 40, which is low in cost, simple and effective.
  • the plugging component has a sealing convex portion for circumferential contact sealing, and the sealing convex portion maintains sealing contact with the outer circumferential inner cylinder wall or the inner wall of the drain port to block the drain port.
  • the sealing protrusion of this embodiment can be directly arranged on the plugging component, so that the plugging component directly seals the drain port 39.
  • the inner wall of the drain port 39 and/or the outer peripheral inner cylinder wall has a sealing protrusion for circumferential contact and sealing, and the sealing ribs maintain sealing contact with the blocking member to block the drain port.
  • the sealing member 40 has a sealing protrusion 41 for circumferential contact sealing, and the sealing protrusion 41 is in sealing contact with the blocking member and/or the drain port 39 to seal the drain port.
  • the sealing protrusion of this embodiment may be formed by a sealing rib formed by the sealing member and/or the inner wall of the drain port 39 and/or the outer circumference of the drain port 39 and/or the sealing member 40 partially protruding, or the sealing protrusion of this embodiment
  • the part may be a protruding part formed by the blocking member and/or the inner wall of the drain port 39 and/or the inner cylinder wall of the outer circumference of the drain port 39 and/or the sealing member 40.
  • the sealed drainage device of this embodiment includes a housing 44 with a guide channel inside, and the blocking member includes a reciprocating guide part 35 arranged in the guide channel, and a guide part 35 arranged at one end of the guide part 35
  • the elastic member 43 is installed in the housing 44, one end is abutted on the housing 44, and the other One end abuts on the blocking member.
  • the elastic member in this embodiment is a compression spring, and the compression spring is sleeved on the guide portion 35.
  • the housing 44 also has an accommodation groove for accommodating the compression spring.
  • the accommodation groove is sleeved on the periphery of the guide channel, and the compression spring One end abuts against the accommodating groove, and the other end abuts against the blocking part.
  • the guiding portion 35 of this embodiment is a guiding cylinder
  • the blocking portion 36 is a blocking plug formed by circumferentially extending one end of the guiding cylinder
  • the connecting portion 34 is a connecting shaft provided at the other end of the guiding cylinder.
  • the centrifugal component described in this embodiment includes a counterweight 38 and a connecting piece 37.
  • One end of the connecting piece 37 is connected to the counterweight 38, and the other end is connected to the blocking component.
  • the middle of the connecting piece 37 has a rotatably mounted on the shaft. Rotating shaft hole 42.
  • the counterweight 36 and the connecting member 37 are integrally formed.
  • the other end of the connecting member 37 in this embodiment has a connecting shaft hole 46 for a connecting shaft of the blocking member, and the connecting shaft is rotatably installed in the connecting shaft hole 46.
  • This embodiment also provides a drum washing machine with the sealed drainage device, including:
  • Inner tube 17 which holds washing water independently when washing clothes
  • the drain 39 is opened on the inner tube 17 for draining washing water
  • the sealed drainage device is installed on the inner wall of the inner cylinder, and the centrifugal movement of the centrifugal component drives the blocking component to open the drainage port under the action of the centrifugal force of the rotation of the inner cylinder.
  • the overall weight M of the centrifugal component, the rotation speed V of the inner cylinder, the elastic pre-tightening force F0 of the elastic member, and the overall mass m of the blocking member during the structural design Matches between:
  • the centrifugal part starts centrifugal movement under the action of the centrifugal force of the inner cylinder, and the centrifugal force generated by the centrifugal part overcomes the elastic pre-tightening force F0 and the centrifugal force of the blocking member to drive the blocking member along
  • the inner cylinder moves radially and close to the central axis of the inner cylinder to open the drain.
  • a clothes lifting device is installed on the inner wall of the inner cylinder, the clothes lifting device has an inner chamber and a communication hole connecting the inner chamber and the inner cylinder, and the drainage port is opened in the inner chamber.
  • the sealed drainage device is arranged in the internal cavity.
  • the sealed drainage device is arranged in the internal cavity, which realizes the hidden installation of the sealed drainage device, avoids the sealed drainage device from interfering with the clothes in the inner cylinder, saves a separate protective shield, reduces the manufacturing cost, and simplifies The assembly process.
  • the clothing lifting device of this embodiment is a lifting rib 32, the lifting rib 32 is installed on the inner wall of the inner cylinder 17 by a fastening screw 45, and the lifting rib is provided with a screw column 55 for assembling the fastening screw 45, The wall of the inner cylinder is provided with a through hole 56 for the fastening screw 45 to pass through.
  • This embodiment also provides a method for controlling the drum washing machine, including:
  • the inner drum speed V is controlled to satisfy V ⁇ V0, and the centrifugal component moves under the centrifugal force of the inner drum rotation to drive the blocking component to open the drain;
  • the V0 is the set value.
  • the drum washing machine of this embodiment can achieve drainage and dehydration by controlling the rotation speed of the inner tub.
  • the inner tub In the drainage phase, the inner tub is controlled to rotate at a speed of at least V0 to achieve drainage.
  • a sealed drainage device for a drum washing machine of this embodiment As shown in Figures 13-17, a sealed drainage device for a drum washing machine of this embodiment.
  • the drum washing machine includes an inner tub 17 for independently holding washing water when washing clothes.
  • the inner tub 17 is provided with a drainage port 39.
  • the sealed drainage device includes :
  • the blocking component is in sealing contact with the drain port 39 and is used to block the drain port 39.
  • the drainage port 39 is blocked by the blocking member, so that the drum washing machine with the non-porous inner tub keeps the drainage port 39 closed during washing and rinsing, and realizes the independent water storage in the non-porous inner tub.
  • plugging component is in direct sealing contact with the drain port 39 to block the drain port 39;
  • the plugging component includes a plugging portion 36 and a sealing element 40 provided on the plugging portion 36, and the sealing element 40 of the plugging component is in sealing contact with the drain port 39 to block the drain port 39.
  • the blocking member has a sealing protrusion 41 for circumferential contact and sealing, and the sealing protrusion 41 maintains sealing contact with the outer circumferential inner cylinder wall or the inner wall of the drain port 39 to block the drain port.
  • the sealing member 40 has a sealing protrusion 41 for circumferential contact sealing, and the sealing protrusion 41 is in sealing contact with the outer peripheral inner cylinder wall or the inner wall of the drain port 39 to block the drain port 39.
  • the inner cylinder 17 described in this embodiment has a flat portion 57 with a flat inner wall surface, and the drain port 39 is opened on the flat surface.
  • the sealing convex portion 41 and the flat portion 57 on the outer periphery of the drain port 39 maintain circumferential sealing contact to block the drain port.
  • the drain port 39 described in this embodiment is opened on the arc-shaped wall of the inner cylinder, and the sealing protrusion 41 is connected to the inner surface of the arc-shaped wall of the outer circumference of the drain port 39 Keep the circumferential sealing contact to block the drain.
  • the sealing protrusion 41 of this embodiment includes at least one ring of sealing ribs arranged on the blocking member/seal, and each sealing rib maintains circumferential sealing contact with the inner surface of the arc-shaped wall.
  • the sealing protrusion includes at least two rings of sealing ribs arranged on the blocking member/seal.
  • the heights of the sealing ribs are equal and not less than the distance between the innermost ring sealing rib and the inner surface of the arc-shaped wall opposite to the innermost ring sealing rib;
  • the height of the sealing ribs of each ring is gradually increased from the outer ring to the arrangement direction of the inner ring, so that the inner surface of the arc-shaped wall opposite to the sealing ribs of each ring maintains circumferential sealing contact.
  • the sealing rib has a sealing rib base, a sealing rib end for maintaining sealing contact with the peripheral wall of the drain outlet, and a transitional connection between the sealing rib base and the sealing rib end.
  • the transition part of the sealing rib is a sealing rib base, a sealing rib end for maintaining sealing contact with the peripheral wall of the drain outlet, and a transitional connection between the sealing rib base and the sealing rib end. The transition part of the sealing rib.
  • the transition portion of the sealing rib is a rounded structure R between the end of the sealing rib and the body of the sealing rib.
  • the sealing member 40 in this embodiment is a sealing plug body made of elastic material.
  • the sealing plug body has an open installation chamber for assembling the plugging parts;
  • the sealing plug body has an inner cylinder connected to the outer periphery of the drain port.
  • At least one ring of sealing ribs is provided on the sealing end surface.
  • the sealed drainage device of this embodiment further includes a centrifugal component that moves under the action of the centrifugal force of the rotation of the inner cylinder; the centrifugal component is connected with the blocking component, and the centrifugal movement of the centrifugal component drives the blocking component to open the Drain
  • the plugging component includes a reciprocating guide portion 35 provided in the guide channel, a plugging portion 36 provided at one end of the guide portion 35 for sealing the drain 39, and a plugging portion 36 provided at the other end of the guide portion 35.
  • the connecting part 34 connecting the centrifugal component; the sealing member 40 is arranged on the blocking part.
  • This embodiment also provides a drum washing machine with the sealed drainage device, including:
  • Inner tube 17 which holds washing water independently when washing clothes
  • the drain 39 is opened on the inner tube 17 for draining washing water
  • the sealing drainage device is installed on the inner wall of the inner cylinder, and when the rotation speed of the inner cylinder reaches the set value V0, the blocking component opens the drainage port.
  • the drain port 39 there is an extension wall between the drain port 39 and the inner wall of the inner cylinder 17 so that the drain port protrudes inside or outside the inner cylinder wall, and the plugging member extends into the extension wall and keeps the circumference of the inner wall. To seal the contact to seal the drain port, further increasing the sealing effect between the plugging member and the drain port 39.
  • the drain port 39 is flush with the inner wall of the inner cylinder 17, and the blocking member is in circumferential sealing contact with the outer circumference of the drain port or the inner wall of the drain port to seal the drain port.
  • a sealed drainage device for a drum washing machine of this embodiment As shown in Figure 13, Figures 18-22, a sealed drainage device for a drum washing machine of this embodiment.
  • the drum washing machine includes an inner tube 17 for independently holding washing water when washing clothes.
  • the inner tube 17 is provided with a drain 39 to seal Drainage devices include:
  • the plugging component is in sealing contact with the drain port and is used to seal the drain port.
  • the plugging component is provided with a first sealing component 47 with unequal cross-sectional areas along the central axis, and at least one outer peripheral wall of the cross-section is used to seal the drainage port in circumferential sealing contact with the drainage port.
  • the sealing component of the sealing drainage device of this embodiment has a first sealing component with a variable cross-section, so that the first sealing component can better circumferentially seal the drainage port and ensure the sealing effect of the drainage port.
  • the first sealing member includes a proximal portion disposed close to the drain port and a distal portion disposed away from the drain port.
  • the first sealing member 47 extends from the proximal portion along the central axis.
  • the cross-sectional area of each cross section gradually increases toward the distal end.
  • the first sealing member 47 is a conical or truncated cone-shaped sealing plug whose cross-sectional area gradually increases from the proximal end to the distal end.
  • the inner cylinder 17 has a flat part with a flat inner wall surface, the drain port 39 is opened on the flat part, and at least one cross-section of the first sealing member 47 is The peripheral wall is in circumferential sealing contact with the drain port 39 to block the drain port;
  • the drainage port is provided on the arc-shaped wall of the inner cylinder, and the outer circumferential inner cylinder wall of at least one cross section of the first sealing member 47 is in circumferential sealing contact with the drainage port to block the drainage port.
  • the plugging component of this embodiment is further provided with a second sealing component located on the outer periphery of the first sealing component 47, and the second sealing component is in circumferential sealing contact with the outer circumference and inner cylinder wall of the drain port 39.
  • the first sealing component and the second sealing component achieve multiple seals between the blocking component and the drain port 39 to ensure the sealing effect of the drain port 39 and prevent water leakage.
  • the second sealing member of this embodiment realizes the first re-sealing of the outer periphery of the drain port, and the sealing contact between the first sealing member and the drain port ensures the second re-seal.
  • the second sealing member includes a sealing protrusion 41 provided on the outer periphery of the first sealing member 47 for contact sealing, the sealing protrusion 41 and the outer peripheral inner cylinder wall of the drain 39 Keep sealed contact to block the drain.
  • first sealing component 47 and the second sealing component are respectively made of elastic material, and are respectively assembled on the blocking component;
  • first sealing component and the second sealing component are respectively made of elastic materials, and the first sealing component and the second sealing component are connected as one body and then assembled on the blocking component;
  • first sealing component and the second sealing component are a sealing plug body integrally made of elastic material, and the sealing plug body is assembled on the blocking component.
  • the sealed drainage device of this embodiment further includes a centrifugal component that moves under the action of the centrifugal force of the rotation of the inner cylinder; the centrifugal component is connected with the blocking component, and the centrifugal movement of the centrifugal component drives the blocking component to open the drain;
  • the plugging component includes a reciprocating guide portion provided in the guide channel, a plugging portion provided at one end of the guide portion for blocking the drainage port, and a plugging portion provided at the other end of the guide portion for connecting the centrifugal component Connecting part; the first sealing part/second sealing part is arranged on the blocking part.
  • This embodiment also discloses a drum washing machine with the sealed drainage device, including:
  • Inner tube independently holding washing water when washing clothes
  • the drainage port is opened on the inner cylinder for draining washing water
  • the sealing drainage device is installed on the inner wall of the inner cylinder, and when the rotation speed of the inner cylinder reaches the set value V0, the blocking component opens the drainage port.
  • the drain port 39 has an extension wall 48 extending from the inner wall of the inner cylinder 17, so that the drain port protrudes from the inner cylinder wall or the inner cylinder wall, and the first sealing member 47 extends into the extension wall.
  • the first sealing member 47 extends into the extension wall.
  • at least one cross-sectional outer peripheral wall and the inner peripheral wall of the extension wall 48 maintain circumferential sealing contact to block the drain.
  • the first sealing member 47 is in surface contact or line contact with the inner peripheral wall of the extension wall 48 of the drain port to seal the drain port.
  • the inner peripheral wall of the extension wall matches the shape of the outer peripheral wall of the first sealing member.
  • the first sealing member is a tapered or truncated sealing plug with a gradually increasing cross-sectional area from the proximal end to the distal end relative to the drainage port, and the extension wall of the drainage port is along the A truncated cone-shaped peripheral wall whose internal cross-sectional area gradually decreases from the inner cylinder wall to the direction away from the central axis of the inner cylinder.
  • a drum washing machine in this embodiment includes:
  • Inner tube 17 which holds washing water independently when washing clothes
  • the inner cylinder drain 39 is opened on the inner cylinder 17 for draining washing water
  • the installation piece 50 is installed at the drain port 39 on the inner wall of the inner cylinder 17;
  • the drainage port 51 of the installation piece is opened on the installation piece and communicates with the drainage port 39 of the inner cylinder;
  • the sealing drainage device includes a plugging component for plugging the drainage port 51 of the mounting member.
  • the mounting member 50 of this embodiment is in a sealed connection with the inner cylinder wall.
  • the drainage port of the inner cylinder is provided on the inner wall of the inner cylinder, and the mounting member includes a connecting portion, and the connecting portion is in a sealed connection with the inner cylinder wall on the outer periphery of the drainage port of the inner cylinder.
  • the mounting member 50 of this embodiment further includes an end cover part. Two opposite side walls of the flat part are in a sealed connection with the inner wall of the inner cylinder. The other two opposite side walls of the flat part are connected to the end cover parts. The cover is kept in a sealed connection with the inner wall of the inner cylinder.
  • the flat part and the end cover part are integrally formed.
  • a mounting member 50 is installed on the inner wall of the inner cylinder.
  • the mounting member 50 has a mounting member drainage port 51 communicating with the inner cylinder drainage port 39.
  • the drainage port of the inner cylinder can be realized by blocking the mounting member drainage port 51 by a sealing drainage device.
  • the seal of 39 does not change the existing arc-shaped wall structure of the inner cylinder, and at the same time, the sealing assembly of the sealing drainage device is realized through the installation part 50.
  • the installation structure is simple, and the installation part has a flat and sealing fit with the blocking part. The sealing effect is better.
  • the drainage port of the inner cylinder is opened on the arc-shaped wall of the inner cylinder, the mounting member includes a connecting portion, and the connecting portion is in a sealed connection with the outer peripheral inner cylinder wall of the drainage port of the inner cylinder.
  • the flat part is a flat plate
  • the end cover part further includes an end cover plate.
  • Two opposite side walls of the flat plate and the arc-shaped inner wall of the inner cylinder are kept in a sealed connection.
  • the other two opposite side walls are respectively connected with end cover plates, and the end cover plates are kept in a sealed connection with the arc-shaped inner wall of the inner cylinder.
  • the straight plate and the end cover plate are integrally formed.
  • a sealing ring 52 is provided between the mounting member 50 and the inner wall of the inner cylinder to achieve a sealed connection, or the mounting member 50 and the inner cylinder The inner wall is welded.
  • the cross-sectional area of the inner cylinder drain 39 is greater than or equal to the cross-sectional area of the mounting member drain 51; in this way, when draining, the water discharged from the mounting member drain 51 can be discharged from the inner cylinder drain 39 in time to ensure Smooth drainage.
  • the inner cylinder water outlet and the mounting member water outlet are both circular holes, and the aperture of the inner cylinder water outlet port is greater than or equal to the aperture of the mounting member water outlet.
  • the central axis of the inner cylinder drain port and the central axis of the mounting member drain port are arranged collinearly, so that the diameter of the water discharged from the mounting member drain port 51 can flow directly to the inner cylinder drain port 39 to be discharged from The outflow path from the drainage port 51 of the installation member to the drainage port 39 of the inner cylinder is deflected, which affects the drainage effect.
  • a sealing mating portion 54 which is sealed to the plugging member is provided on the outer periphery of the drainage port 51 of the mounting member on the flat portion.
  • the sealing mating portion 54 is at least one ring of sealing ribs arranged on the outer periphery of the drainage port, and the sealing ribs are in sealing contact with the sealing portion of the blocking component.
  • the blocking member is provided with a first sealing member 47.
  • the first sealing member 47 extends into the extension wall 53 of the mounting member, and the outer peripheral wall of at least one cross section is kept in sealing contact with the inner peripheral wall of the extension wall 53 of the mounting member.
  • first sealing member 47 is in surface contact or line contact with the inner peripheral wall of the extension wall 53 of the mounting member and seals the drainage port of the mounting member;
  • the inner peripheral wall of the extension wall 53 of the mounting member matches the shape of the outer peripheral wall of the first sealing member 47.
  • the first sealing member 47 is a tapered or truncated sealing plug whose cross-sectional area gradually increases from the proximal end to the distal end relative to the drainage port of the mounting member, and the mounting member extends
  • the wall 53 is a truncated cone-shaped peripheral wall whose internal cross-sectional area gradually decreases in the direction away from the central axis of the inner cylinder along the flat portion.
  • a clothes lifting device is provided on the inner wall of the inner cylinder, and the clothes lifting device has an inner chamber and a communication hole 33 connecting the inner chamber and the inner cylinder, and the drainage port is opened in the inner chamber.
  • the mounting member 50 and the sealing drainage device are all arranged in the inner cavity.
  • the lifting device in this embodiment is a lifting rib 32.
  • the lifting rib 32 has a lifting rib base 58 installed on the inner wall of the inner cylinder and a lifting rib protrusion 49 protruding into the inner cylinder.
  • the hole 33 is provided on the raised portion 49 of the lifting rib, and the mounting member 50 is connected to the base 58 of the lifting rib in a circumferential direction sealingly.
  • the sealed drainage device of this embodiment also includes a centrifugal component that moves under the action of the centrifugal force of the rotation of the inner cylinder; the centrifugal component is connected with the blocking component, and the centrifugal movement of the centrifugal component drives the blocking component to open the drainage port of the installation component.
  • a drum washing machine in this embodiment includes:
  • Inner tube 17 which holds washing water independently when washing clothes
  • the assembly port is opened on the inner cylinder 17;
  • the mounting part 50 is sealed and installed in the assembly port
  • the installation part drainage port 51 is opened on the installation part
  • the sealing drainage device includes a plugging component for plugging the drainage port of the mounting member.
  • the mounting member 50 is installed on the assembly opening of the inner cylinder, and the mounting member 50 has a mounting member drainage port 51.
  • the drainage port 51 of the mounting member can be sealed by the sealing drainage device to realize the sealing of the drainage of the inner cylinder without changing the current situation. While having the arc-shaped wall structure of the inner cylinder, the sealing assembly of the sealing drainage device is realized by the mounting member 50.
  • the mounting structure is simple, and the sealing effect is better because the mounting member has a flat part that is sealed and matched with the blocking component.
  • the assembly through opening is opened on the cylinder wall of the inner cylinder, and the mounting member 50 includes a connecting part, and the connecting part is in a sealed connection with the inner peripheral wall of the assembly through opening.
  • the mounting part in this embodiment includes a flat part, and the drainage port of the mounting part is provided on the flat part.
  • the flat part is provided on the outer wall of the outer periphery of the drainage port 51 of the mounting piece with a sealing fit for sealingly fitting with the plugging component ⁇ 54.
  • the sealing mating portion 54 is at least one ring of sealing ribs arranged on the outer periphery of the drainage port of the mounting member, and the sealing ribs are in sealing contact with the blocking component.
  • the blocking component has at least one ring of sealing ribs, and the sealing ribs maintain sealing contact with the flat part of the outer periphery of the drainage port 51 of the mounting member;
  • a sealing element is arranged on the blocking component, the sealing element has at least one ring of sealing ribs, and the sealing ribs are kept in sealing contact with the outer wall surface of the flat part on the outer periphery of the drainage port of the mounting member.
  • At least one ring of first sealing ribs is provided on the outer wall of the drainage port of the mounting member on the flat portion; the sealing member is provided on the sealing member, and the sealing member has at least A circle of second sealing ribs; the first sealing ribs and the second sealing ribs are arranged in a staggered manner, the first sealing ribs are in sealing contact with the flat end surface of the sealing member, and the second sealing ribs are flat with the outer periphery of the drainage port of the mounting member The flat part maintains hermetic contact.
  • the plugging member is provided with a first sealing member 47, the first sealing member 47 extends into the extension wall 53 of the mounting member, and at least one outer peripheral wall of the cross section is kept in circumferential sealing contact with the inner peripheral wall of the extension wall of the mounting member .
  • first sealing member 47 is in surface contact or line contact with the inner peripheral wall of the extension wall 53 of the mounting member and seals the drainage port of the mounting member;
  • the inner peripheral wall of the extension wall 53 of the mounting member matches the shape of the outer peripheral wall of the first sealing member 47;
  • the first sealing member 47 is a tapered sealing plug whose cross-sectional area gradually increases from the proximal end to the distal end relative to the drainage port of the mounting member, and the mounting member extension wall 53 is From the flat part to the peripheral wall of the truncated cone whose internal cross-sectional area gradually decreases away from the central axis of the inner cylinder.
  • a clothes lifting device is provided on the inner wall of the inner cylinder 17, the clothing lifting device has an internal chamber and a communication hole that communicates the internal chamber with the inner cylinder, and the assembly port is opened in the inner chamber On the wall of the inner cylinder, the sealed drainage device is arranged in the inner cavity.
  • the drainage sealing device of this embodiment also includes a centrifugal component that moves under the action of the centrifugal force of the rotation of the inner cylinder; the centrifugal component is connected with the blocking component, and the centrifugal movement of the centrifugal component drives the blocking component to open the drainage port of the installation component.
  • the centrifugal component includes a counterweight and a connecting piece, one end of the connecting piece is connected with the counterweight, the other end is connected with the blocking component, and the middle of the connecting piece has a shaft hole rotatably installed on the shaft;
  • the counterweight member and the connecting member are integrally formed.

Abstract

L'invention concerne une machine à laver à tambour qui comprend un tambour interne destiné à contenir indépendamment de l'eau de lavage tout en lavant le linge ; une ouverture d'évacuation de tambour interne formée au niveau du tambour interne pour évacuer l'eau de lavage ; un élément d'installation installé au niveau de l'ouverture d'évacuation au niveau d'une paroi interne du tambour interne ; une ouverture d'évacuation de l'élément d'installation formée au niveau de l'élément d'installation et étant en communication avec l'ouverture d'évacuation du tambour interne ; et un dispositif d'étanchéité d'évacuation comprenant un élément de blocage utilisé pour bloquer l'ouverture d'évacuation de l'élément d'installation. Dans la présente invention, une paroi interne d'un tambour interne comporte un élément d'installation ayant une ouverture d'évacuation d'élément d'installation en communication avec une ouverture d'évacuation de tambour interne, et un dispositif d'étanchéité d'évacuation est utilisé pour bloquer l'ouverture d'évacuation d'élément d'installation, ce qui permet d'étanchéifier l'ouverture d'évacuation du tambour interne. L'élément d'installation permet au dispositif d'étanchéité d'évacuation de s'adapter et d'étanchéifier sans changer la structure de paroi circulaire classique du tambour interne, et ainsi l'invention a une structure d'installation simple. De plus, l'élément de blocage peut s'ajuster de manière serrée contre une partie lisse de l'élément d'installation, ce qui permet d'obtenir des performances d'étanchéité favorables.
PCT/CN2020/077542 2019-03-13 2020-03-03 Machine à laver à tambour WO2020182014A1 (fr)

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CN201910189945.5A CN111691147B (zh) 2019-03-13 2019-03-13 一种滚筒洗衣机
CN201910189961.4 2019-03-13
CN201910189961.4A CN111691128B (zh) 2019-03-13 2019-03-13 一种滚筒洗衣机

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