WO2018032886A1 - 具有自动调平功能的洗衣机底脚及洗衣机 - Google Patents

具有自动调平功能的洗衣机底脚及洗衣机 Download PDF

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Publication number
WO2018032886A1
WO2018032886A1 PCT/CN2017/090838 CN2017090838W WO2018032886A1 WO 2018032886 A1 WO2018032886 A1 WO 2018032886A1 CN 2017090838 W CN2017090838 W CN 2017090838W WO 2018032886 A1 WO2018032886 A1 WO 2018032886A1
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WO
WIPO (PCT)
Prior art keywords
washing machine
foot
flexible
automatic leveling
mounting
Prior art date
Application number
PCT/CN2017/090838
Other languages
English (en)
French (fr)
Inventor
赵志强
许升
Original Assignee
青岛海尔洗衣机有限公司
青岛海尔智能技术研发有限公司
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
Application filed by 青岛海尔洗衣机有限公司, 青岛海尔智能技术研发有限公司 filed Critical 青岛海尔洗衣机有限公司
Priority to EP17840862.1A priority Critical patent/EP3502340B1/en
Priority to US16/325,227 priority patent/US10939760B2/en
Priority to JP2019507252A priority patent/JP2019524316A/ja
Publication of WO2018032886A1 publication Critical patent/WO2018032886A1/zh

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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
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/12—Casings; Tubs
    • D06F39/125—Supporting arrangements for the casing, e.g. rollers or legs
    • 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
    • D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/20—Mountings, e.g. resilient mountings, for the rotary receptacle, motor, tub or casing; Preventing or damping vibrations
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B91/00—Feet for furniture in general
    • A47B91/16—Self-levelling legs

Definitions

  • the invention relates to the technical field of washing machines, in particular to a washing machine foot with an automatic leveling function and a washing machine.
  • Household appliances are generally provided with leveling devices at the bottom of the casing. When the household appliances are placed, the leveling device can be adjusted to a stable state. After leveling and placing, the leveling device can support the household appliances to keep them. stable.
  • the existing washing machine generally has a bolt foot installed on the bottom of the casing or the whole machine.
  • the bolt foot includes a screw, a nut washer and a rubber pad, and the nut washer can be rotated up and down on the screw, and the screw can also be used.
  • the foot of most washing machines is rotated counterclockwise to increase the height, and the clockwise rotation is Lower the height and after tightening the height of the bolt foot, prevent the loose nut gasket from tightening to maintain stability.
  • the foot of the above washing machine realizes the leveling of the washing machine, the user needs to perform manual adjustment. If the washing machine has a large self-weight or a small installation space, the user operation is inconvenient. In addition, the vibration of the washing machine during the long-term work also has an effect on the leveling foot, which easily leads to the failure of the support and causes the unevenness of the washing machine.
  • the existing 8KG drum washing machine is generally about 80Kg, which is relatively heavy.
  • the adjustment of the consumer is extremely inconvenient. Even if the adjustment is completed, the washing machine cannot be adjusted to the optimal state.
  • the washing machine is accelerated from 0r/min to 1400r/min. When dry dehydration, the washing machine does not have horizontal or virtual leg problems, which will cause great vibration, which greatly affects the consumer's comfort.
  • the first object of the present invention is to provide a washing machine foot having an automatic leveling function, and specifically, the following technical solution is adopted:
  • Washing machine foot with automatic leveling function including:
  • One end of the flexible body assembly is fixedly mounted in the sheath, and the other end is a telescopic end acting on the adjusting foot; the telescopic end is telescopically driven by the hydraulic medium to adjust the axial movement of the foot to realize automatic leveling;
  • the flexible body assembly includes a flexible receiving body, a mounting assembly for mounting the flexible receiving body, and a protection mechanism disposed between the mounting assembly and the flexible receiving body for protecting the flexible receiving body.
  • the flexible receiving body comprises a retractable corrugated structure, a throttled diameter and an opening, and the opening is sealed and mounted on the mounting assembly;
  • the protection mechanism is an upper protection ring, and the upper protection ring is sleeved on the throttle diameter.
  • the upper end surface of the upper protection ring is limited to the lower part of the mounting assembly, and the lower end surface has a curved surface matched with the corrugated structure.
  • the upper guard ring includes an annular annular body, and a mounting hole for the throttle diameter to pass through in the middle of the annular body;
  • the annular body has a mounting groove extending through the mounting hole, and the width of the mounting groove is smaller than the outer diameter of the throttle diameter;
  • the throttled small diameter compression deformation can be entered into the mounting hole by the mounting groove.
  • the mounting groove is provided with a chamfered structure toward the opening of the outer portion of the annular body.
  • the upper protection ring is provided with a limiting hole penetrating up and down, and the mounting assembly is provided with a limiting protrusion for engaging with the limiting hole.
  • the mounting component is provided with a limiting post, and the limiting post is disposed corresponding to the mounting slot of the upper protective ring.
  • the mounting assembly includes an oil pressure plate and a pressure plate, and an opening of the flexible container is sealed to the lower wall of the oil pressure plate by a pressure plate;
  • a oil nozzle is disposed on one side of the oil pressure plate, and an oil hole for the hydraulic medium flowing in the oil bladder is disposed on the lower wall of the oil pressure plate, and the oil nozzle and the oil hole oil passage are disposed in the oil pressure plate;
  • the lower end surface of the pressure plate abuts against the upper end surface of the protection mechanism.
  • the limiting protrusion is disposed on a lower end surface of the pressure plate.
  • the limiting post is disposed on the lower end surface of the pressure plate and is located at both ends of the same diameter as the limiting protrusion.
  • a second object of the present invention is to provide a washing machine, and in particular, the following technical solution is adopted:
  • a washing machine having the above-mentioned washing machine foot with automatic leveling function comprising a casing, a plurality of said washing machine feet are mounted on a bottom of the casing, and a hydraulic medium filled inside the washing machine foot can be between the washing machine feet The circulation is leveled.
  • the foot of the washing machine with automatic leveling function according to the invention is filled with hydraulic medium in the foot according to the hydraulic principle, and the foot automatically adapts to the foot due to the fluidity of the hydraulic medium for different pressures.
  • the washing machine foot with the automatic leveling function of the invention holds the hydraulic medium in the sealed flexible body assembly, and the flexible body assembly is placed inside the adjusting foot, effectively solving the problem of leakage of the hydraulic medium and ensuring the working of the foot. stability.
  • the footrest of the washing machine with the automatic leveling function of the invention limits the flexible body assembly to the sheath to avoid damage of the flexible body assembly, thereby ensuring the stability of the flexible body assembly; and, by the protection mechanism, avoiding The flexible receiving body directly contacts the mounting assembly, which greatly reduces the damage probability of the flexible receiving body and prolongs its service life.
  • the washing machine of the present invention has a simple structure and a relatively low cost; the utility model has the advantages of convenient use and high reliability; the vibration can be significantly reduced, the noise is reduced, and the comfort of the user experience of the washing machine is improved.
  • Figure 1 is an exploded view of the foot of a washing machine having an automatic leveling function according to an embodiment of the present invention
  • Figure 2 is an exploded view of the foot of the washing machine with automatic leveling function according to an embodiment of the present invention
  • FIG. 3 is a schematic perspective structural view of a foot of a washing machine with an automatic leveling function according to an embodiment of the present invention
  • FIG. 4 is a top plan view of a foot of a washing machine having an automatic leveling function according to an embodiment of the present invention
  • Figure 5 is a cross-sectional view of the foot of the washing machine having the automatic leveling function according to the A-A plane of Figure 4;
  • Figure 6 is a cross-sectional view taken along line B-B of Figure 4 of the washing machine foot with automatic leveling function according to an embodiment of the present invention
  • Figure 7 is a sectional view taken along line C-C of Figure 4 of the washing machine foot with automatic leveling function according to an embodiment of the present invention
  • Figure 8 is a cross-sectional view of the foot of the washing machine with automatic leveling function taken along line D-D of Figure 4;
  • FIG. 9 is a schematic perspective view of a three-dimensional mechanism of a press plate of a washing machine foot with an automatic leveling function according to an embodiment of the present invention.
  • Figure 10 is a perspective view of a three-dimensional mechanism of an upper protection plate of a washing machine foot having an automatic leveling function according to an embodiment of the present invention
  • Figure 11 is a perspective view of a three-dimensional mechanism of an upper protection plate of a washing machine foot with an automatic leveling function according to an embodiment of the present invention
  • Figure 12 is a schematic diagram showing the leveling of the foot of a washing machine having an automatic leveling function according to an embodiment of the present invention.
  • the foot of the washing machine with the automatic leveling function of the embodiment includes:
  • a flexible body assembly 200 disposed within the adjustment foot 300 for receiving a hydraulic medium
  • One end of the flexible body assembly 200 is fixedly mounted in the sheath 500, and the other end is a telescopic end acting on the adjusting foot 300;
  • the telescopic end of the flexible body assembly 200 is telescopically driven by the hydraulic medium to move the adjustment foot 300 axially to achieve automatic leveling.
  • the washing machine foot of the embodiment is disposed at four corners of the bottom plate of the washing machine or evenly arranged at least four along the circumferential direction of the bottom plate, at least two of the washing machine feet are connected to each other: when the ground of the washing machine is not flat, each washing machine is caused The force of the foot is different, and the hydraulic medium in the foot of the washing machine that communicates with each other is weakly subjected to the force of the force. With the circulation of the hydraulic medium, the flexible body assembly 200 expands and contracts, further driving the axial movement of the adjusting foot 300. Automatic leveling.
  • the footrests of the washing machine of the embodiment communicate with each other such that the hydraulic medium inside the foot of the washing machine can communicate between the feet of the washing machine.
  • the hydraulic medium circulates to another one communicating therewith.
  • the hydraulic medium in the foot of the other washing machine is increased, and the pressure is increased to make it extend to ensure sufficient supporting force.
  • the footrest of the washing machine with the automatic leveling function of the embodiment limits the flexible body assembly 200 to the sheath 500 to avoid damage to the flexible body assembly 200, so that the stability of the flexible body assembly 200 can be ensured.
  • the footrest of the washing machine with the automatic leveling function of the embodiment is high in assembly efficiency, simple and convenient, and the force-receiving member (such as the sheath 500) can be made of sheet metal, or zinc alloy, or high-performance engineering plastics. PPS, PI, PEEK and other injection molding, high reliability.
  • the footrest of the washing machine with the automatic leveling function of the embodiment provides an optimized structure, is simple to assemble, is easy to install, and avoids damage to the flexible body assembly 200 as much as possible to ensure the overall stability of the foot of the washing machine and prolong the extension. Life expectancy.
  • the sheath 500 of the present embodiment includes a sleeve 506 having a hollow passage therein, and the adjustment foot 300 is axially slidably disposed in the hollow passage of the sleeve 506, and one end of the sleeve 506 is extended.
  • the hollow passage is used for contact with the ground, and can be automatically leveled according to the ground sliding height under the action of the hydraulic medium.
  • One end opening of the sleeve body 506 of the embodiment extends to the outer side of the hollow channel to form a sheath plane 504, and the sheath plane 504 is attached to the bottom plate of the washing machine and fixedly connected by the connecting member.
  • the sleeve 506 of the present embodiment is fixedly mounted on the bottom plate of the washing machine by the sheath plane 504, and the flexible body assembly 200 is disposed on the sheath 500, so that the sheath 500 interacts with the bottom plate, and the flexible body assembly 200 does not bear the washing machine.
  • the force is only stretched under the action of hydraulic medium to ensure the stability of its work.
  • the sleeve 506 of the present embodiment has a cylindrical structure and has a certain length to cooperate with the adjustment foot 300 to wrap at least a part of the adjustment foot 300.
  • the upper portion of the sleeve body 506 of the present embodiment has a stamping integrally formed flange forming structure to form a sheath plane 504.
  • the sheath plane 504 has a sheath fixing hole 503, so that the sheath 500 or the entire washing machine foot can be firmly fastened to the bottom plate of the washing machine by screws or bolts.
  • the sheath 500 of the present embodiment may be selected from plastic injection molding, aluminum alloy die casting, etc., preferably by sheet metal stamping.
  • the flexible body assembly 200 of the present embodiment includes an oil pressure plate 220, a pressure plate 230, and an oil bladder 250.
  • the opening of the oil bladder 250 is sealingly connected to the lower wall of the oil pressure plate 220 through the pressure plate 230.
  • a hydraulic nozzle 221 is disposed on one side of the oil pressure plate 220 of the embodiment.
  • the lower wall of the oil pressure plate 220 is provided with an oil hole 224 for the hydraulic medium flowing in the oil bladder 250.
  • the oil pressure plate 220 is provided with a communication nozzle 221 and an oil hole. 224 oil passage 226.
  • the oil pressure plate 220 of the embodiment is limitedly mounted on one end of the sheath plane 504 of the casing 506, and the oil bladder 250 is disposed in the sheath 500 and is in contact with the inner wall thereof.
  • the oil pressure plate 220 of the present embodiment is integrally molded or die-casted with upper and lower oil nozzles 221 for communicating with each other between the feet of the washing machine so that the hydraulic medium is transferred between the feet of the washing machine.
  • the oil pressure plate 220 of the embodiment has an oil hole 224 at an intermediate position, and has an oil passage 226 therein, so that the hydraulic medium inside the oil bladder 250 can flow through the oil passage 226 to the grease 221 through the oil passage 224, thereby realizing multiple The hydraulic medium of the foot of the washing machine is automatically leveled according to the free flow of the pressure.
  • the oil bladder 250 of the present embodiment is filled with a hydraulic medium, and the oil pressure plate 220 is used for sealing the hydraulic medium of the oil bladder 250 and the hydraulic medium in the oil bladder 250 is discharged/inflowed from the oil nozzle 221 of the oil pressure plate 220, and the pressure plate 230 is used.
  • the sealing connection between the opening of the oil bladder 250 and the oil pressure plate 220 is ensured to avoid leakage of the hydraulic medium.
  • the oil bladder 250 of the flexible body assembly 200 of the present embodiment is a telescopic structure made of a flexible material, and it is preferable that the flexible material has elasticity to enable deformation recovery.
  • the oil pressure plate 220 is a one-piece injection molding or die-casting component. Therefore, it is only necessary to limit the oil pressure plate 220 to the sleeve body 506 to realize the limit installation of the flexible body assembly 200.
  • the flexible body assembly 200 of the present embodiment further includes a limiting plate 210, and the limiting plate 210 includes a plurality of protruding limiting claws 211, and the sleeve 506 is provided with a limiting slot 502 for engaging the limiting position;
  • the limiting plate 210, the oil pressure plate 220 and the pressure plate 230 are fixedly coupled to define a circumferential rotation of the flexible body assembly 200 disposed within the adjustment foot 300.
  • the flexible body assembly 200 of the embodiment cooperates with the limiting slot 502 of the sleeve 506 through the limiting claw 211 of the limiting plate 210, so that the flexible body assembly 200 cannot perform circumferential rotation.
  • the limiting claws 211 of the limiting plate 210 of the present embodiment include a plurality of, and are disposed according to the specific structure and installation of the oil pressure plate 220.
  • the sleeve 506 is opened for opening the oil nozzle 221 of the oil pressure plate 220. Therefore, when the limiting claw 211 is disposed, the position of the opening needs to be considered, and the opening is avoided to ensure the limit. installation.
  • the limiting plate 210 of the embodiment has a limiting plate mounting hole 212.
  • the hydraulic plate 220 has a hydraulic plate mounting hole 222.
  • the pressing plate 230 has a pressing plate mounting hole 231.
  • the pressing plate 230 and the oil pressing plate 220 can be screwed or bolted.
  • the limiting plates 210 are tightly fixed together.
  • the sheath 500 of the embodiment is mounted on the bottom plate of the washing machine, the oil pressure plate 220 is fastened to the limiting plate 210, and the limit limiting plate 210 is restricted above and below, and the lower portion is the lowest end of the limiting slot 502 of the sheath 500.
  • the limiting claw 211 and the limiting groove 502 at least cause the limiting plate 210 to have a force supporting point in the circumferential direction, that is, the limiting claw 211 and the limiting groove 502 are uniformly distributed as much as possible in the circumferential direction.
  • the limiting plate 210 is made of sheet metal stamping, which is simple and low in cost.
  • the washing machine foot of the embodiment specifically:
  • the washing machine foot of the embodiment further includes an axial limiting device 100.
  • the axial limiting device 100 is disposed in the sheath 500.
  • One side of the axial limiting device 100 is limited to the bottom plate of the washing machine, and the other side acts on the flexible body.
  • Assembly 200 is used to define its axial movement.
  • the axial movement of the flexible body assembly 200 is limited by the axial limiting device, thereby ensuring stable operation of the flexible body assembly 200.
  • the axial limiting device is an annular circlip 101 having a slit, and the inner wall of the sheath 500 is provided with an annular groove 505, and the circlip 101 is affixed to In the annular groove 505 and located in the Above the limiting plate 210 of the flexible body assembly 200.
  • the use of the snap spring 101 for installation and disassembly is simple and convenient, and the cost is low.
  • the annular groove 505 is disposed on the inner wall of the sheath 500 to effectively limit the retaining spring 101 to ensure the stability of the mounting of the retaining spring 101.
  • This embodiment has an annular groove 505 on the inner circumference of the sheath 500, which may be stamped, preferably an annular groove 505.
  • the upper surface of the circlip 101 of the embodiment is provided with a protruding limiting protrusion 102, and the protrusion 102 can further perform axial limiting when the circlip 100 is axially swayed.
  • the circlip 101 has a limiting protrusion 102 for uniform stress.
  • the card spring 100 of the embodiment is provided with a hole 103 for tool operation.
  • the retaining spring 101 has a hole 103 for tool mounting.
  • the oil bladder 250 of the present embodiment includes a retractable corrugated structure 253, a throttled fine diameter 252, and an opening 251.
  • the throttled fine diameter 252 is in communication with the corrugated structure 253, and the opening 251 is located at the end of the throttled fine diameter 252.
  • the flexible body assembly 200 further includes an upper guard ring 240.
  • the upper guard ring 240 has a mounting hole 241 for the passage of the throttle diameter 252.
  • the upper guard ring 240 has a mounting slot 242, and one end of the mounting slot 242 opens through the mounting hole 241. The other end opening is opened on the side wall of the upper guard ring 240.
  • the throttle radius 252 enters the mounting hole 241 through the mounting groove 242.
  • the lower surface of the upper guard ring 240 has a fitting surface that matches the oil bladder 250, and prevents the oil bladder 250 from being crushed and broken upward at a high pressure.
  • the upper guard ring 240 has a mounting hole 241 in the middle thereof and has a mounting groove 242 structure.
  • the outer portion of the mounting groove 242 has a chamfered structure 243, so that the throttled diameter 252 of the oil bladder 250 is more easily mounted on the mounting hole of the upper guard ring. 241.
  • the mounting hole 241 can ensure the strength at the throttle fine diameter 252, avoid damage, prevent deformation here, and ensure that the throttle diameter 252 of the oil bladder 250 is always opened, thereby ensuring the working efficiency of the washing machine foot.
  • the upper guard ring and the oil bladder contact portion are in the same shape as the oil bladder.
  • the upper guard ring and the cavity structure of the adjusting foot form a relatively sealed space, and the oil bladder placed inside is protected by the two components, thereby effectively preventing the oil bladder from expanding and breaking or being damaged.
  • the adjustment foot When the adjustment foot is stressed, the adjustment foot moves upwards, squeezing the oil bladder and the internal liquid medium, and then transmitting the force to the upper protection ring. Since the upper part of the upper protection ring is the pressure plate, the oil pressure plate or even the bottom plate of the washing machine, the upper protection ring cannot move upward, and is pressed into the adjustment foot and squeezes the liquid medium out.
  • the upper protection and the pressure plate are not integrally fixed, which facilitates the self-adjustment of the upper protection ring because the unevenness of the force at the bottom of the adjustment foot is adjusted.
  • the structure may be slightly deflected, so that the upper protection ring is slightly deflected and the upper protection is performed.
  • Ring circumference The face is concentric with the inner circumferential surface of the adjustment foot, and the upper guard ring is pressed into the interior of the adjustment foot.
  • the oil bladder 250 has an opening 251, a throttled diameter 252, and a corrugated structure 253 that internally houses a liquid medium.
  • the hydraulic medium is hydraulic oil.
  • the material of the oil bladder 250 is an oil resistant elastomer material such as nitrile rubber, acrylate rubber, silica gel or the like.
  • the main body of the oil bladder 250 is provided with a corrugated structure 253 in order to improve its reliability and life.
  • the oil bladder 250 is in conformity with the space of the adjusting foot 300 and the upper guard ring 240, and only has a certain gap at the position of the corrugated structure 253.
  • the foot of the washing machine of this embodiment limits the installation of the flexible body assembly 200, mainly to avoid the instability caused by the rotation of the foot of the washing machine during the automatic leveling process. Therefore, further, the foot of the washing machine of the embodiment further defines the movement of the adjusting foot so that it only moves up and down without rotating, so as to ensure the stability of the leveling process, specifically:
  • a guide limiting slot 501 is disposed on the inner wall of the sheath 500 of the embodiment.
  • the outer wall of the adjusting leg 300 is provided with a guiding limiting block 302.
  • the guiding limiting block 302 is limited to the guiding limiting slot 501 and along the axis thereof. Sliding in.
  • the sheath 500 has a guiding limit groove 501 so that the adjusting foot 300 can only move up and down inside the sheath 500, and can not be rotated circumferentially, thereby preventing the adjusting foot 300 from rotating in the sheath 500.
  • the limit guiding groove 501 has a stopper portion 507 at the bottom thereof, and cooperates with the limiting block 302 which is circumferentially convex of the adjusting leg 300 to prevent the adjusting foot 300 from coming off the sheath 500.
  • An elastic spacer 400 is disposed on the outer side of the bottom wall of the sheath 500 of the embodiment.
  • the bottom wall of the sheath 500 is provided with a reinforcing bonding groove.
  • the upper surface of the elastic spacer 400 is provided with a reinforcing patch matched with the reinforcing bonding groove.
  • the rib 401, the lower surface of the elastic spacer 400 is partially recessed to form the damper 402.
  • the elastic spacer 400 is a rubber gasket.
  • the adjusting foot 300 and the rubber gasket are used to increase the joint strength.
  • the bottom of the adjusting foot 300 is provided with a reinforcing fitting groove.
  • the rubber gasket has a reinforcing fitting 401, and a preferred rubber is integrally molded on the adjusting foot 300. Where the rubber gasket is in contact with the ground, some concave patterns are preferably provided to form the damping rib 401, which increases the frictional damping of the foot and the bottom surface, and prevents the washing machine from being displaced due to vibration.
  • the guide limit block 302 of the adjustment foot 300 must cooperate with the guide limit groove 501 of the sheath 500.
  • the throttle fine diameter 252 of the oil bladder 250 is installed into the upper guard ring 240, and the opening of the oil bladder 250 is inserted into the convex portion of the oil pressure plate 220 to be placed at the sealing groove 223, and the pressure plate 230 is pressed against the oil bladder 250.
  • the pressure plate 230, the oil pressure plate 220, and the limit plate 210 constitute a flexible body assembly 200.
  • the flexible body assembly 200 is placed in the hollow chamber 301 of the adjustment foot 300.
  • the limiting plate 210 of the flexible body assembly 200 is installed in the sheath 500.
  • the lower portion of the limiting plate 210 is limited by the limiting slot 502, and the circumference is limited by the limiting claw 211 and the limiting slot 502.
  • the circlip 101 is placed in the annular groove 505 of the sheath 500.
  • the flexible body assembly 200 is no longer moved relative to the sheath 500 in the upper and lower directions and in the circumferential direction, and is fixed together.
  • the assembly is completed, the assembly efficiency is high, simple and convenient, and the force-receiving parts are made of sheet metal, which has high reliability.
  • the foot of the washing machine with the automatic leveling function of the embodiment includes:
  • a flexible body assembly 200 disposed within the adjustment foot 300 for receiving a hydraulic medium
  • One end of the flexible body assembly 200 is fixedly mounted in the sheath 500, and the other end is a telescopic end acting on the adjusting foot 300; the telescopic end is telescopically driven by the hydraulic medium to adjust the axial movement of the foot to realize automatic Leveling;
  • the flexible body assembly 200 includes a flexible receiving body, a mounting assembly for mounting the flexible receiving body, and a protection mechanism disposed between the mounting assembly and the flexible receiving body for protecting the flexible receiving body.
  • the flexible accommodating body of the embodiment is generally made of a flexible material, and the mounting component is generally rigid in structure, and the flexible accommodating body is mounted on the mounting component. If the two directly interact with each other, the mounting component may cause flexible accommodation. The body is broken, in which case the foot of the washing machine of this embodiment will be rendered useless.
  • a protection mechanism is disposed between the mounting assembly and the flexible receiving body to prevent the flexible receiving body from directly contacting the mounting assembly, thereby reducing the probability of breakage.
  • the protection mechanism of the embodiment should be made of a flexible material and/or have a curved surface that fits the flexible receiving body, so that the flexible receiving body can be effectively buffered. Avoid damage.
  • the protection mechanism of the embodiment can be made of a flexible material such as a rubber material.
  • the flexible receiving body of the embodiment includes a retractable corrugated structure 253, a throttled diameter 252 and an opening 251, and the opening 251 is sealingly mounted on the mounting assembly;
  • the protection mechanism is an upper guard ring 240, the upper guard ring 240 is sleeved on the throttle diameter 252, the upper end surface of the upper guard ring 240 is limited to the lower part of the mounting assembly, and the lower end surface has a curved surface matching the corrugated structure 253.
  • the upper guard ring 240 is used as the flexible accommodating body, and the curved surface on the upper guard ring can be matched with the corrugated structure 253, so that the upper end surface of the corrugated structure is attached to the curved surface of the upper guard ring.
  • the upper end surface of the corrugated structure is evenly stressed to avoid damage caused by local stress concentration.
  • the upper guard ring 240 of the present embodiment includes a circular annular body, a mounting hole 241 for the passage of the throttle diameter 251 in the middle of the annular body, and a through hole 241 is formed in the annular body.
  • the mounting groove 242 has a width smaller than the outer diameter of the throttle radius 251. The throttled small diameter 251 can be compressed and deformed and can be inserted into the mounting hole 241 by the mounting groove 242.
  • the mounting groove 242 provided in the upper guard ring 240 of the present embodiment facilitates the mounting of the flexible receiving body, and at the same time enables the flexible receiving body to be defined in the mounting hole 241 after installation.
  • the mounting groove 242 of the embodiment is provided with a chamfer structure 243 toward the opening of the outer portion of the annular body, and the flexible receiving body is more easily entered into the mounting groove 242 and enters into the mounting hole 241.
  • the footrest of the washing machine with the automatic leveling function of the embodiment protects the flexible receiving body by providing a protection mechanism between the mounting assembly and the flexible receiving body, and further, the mounting of the upper guard ring is restricted, A limiting hole 244 penetrating through the upper and lower sides is disposed on the upper guard ring 240.
  • the mounting assembly is provided with a limiting protrusion 235 for engaging with the limiting hole 244.
  • the mounting assembly of the embodiment is fixedly mounted in the adjusting foot 300 or fixedly mounted on the bottom plate of the washing machine, and the mounting assembly realizes the upper protection ring through the cooperation of the limiting protrusion 235 and the limiting hole 244 of the upper protection ring 240.
  • the circumferential limit of 240 avoids the mutual rotation between the upper guard ring 240 and the flexible receiving body, and wear occurs.
  • the mounting assembly described in this embodiment is provided with a limiting post 234, and the limiting post 234 is disposed corresponding to the mounting slot 242 of the upper guard ring 240.
  • the upper guard ring 240 is further limited by the limiting post 234.
  • the limiting post 234 is disposed corresponding to the mounting slot 242, no additional limiting hole is required on the upper guard ring 240.
  • the mounting assembly of the embodiment includes an oil pressure plate 220 and a pressure plate 230.
  • the opening of the flexible receiving body is sealingly connected to the lower wall of the oil pressure plate 220 through the pressure plate 230; the oil pressure plate 220 is provided with a grease nozzle on one side thereof. 221, the lower wall of the oil pressure plate 220 is provided with an oil hole 224 for the hydraulic medium flowing in the oil bladder 250.
  • the oil pressure plate 220 is provided with a communication nozzle 221 and an oil hole 224 oil passage 226; the lower end surface of the pressure plate 230 is stopped. Abutting the upper end surface of the protection mechanism.
  • the pressure plate 230 achieves a limitation of the upper guard ring 240 in the vertical direction.
  • the limiting protrusion 235 described in this embodiment is disposed on the lower end surface of the pressure plate 230.
  • the limiting post 234 is disposed on the lower end surface of the pressing plate 230 and is located at both ends of the same diameter as the limiting protrusion 235.
  • the embodiment also provides a washing machine having the above-mentioned washing machine foot with automatic leveling function, comprising a casing, a plurality of said washing machine feet are installed at the bottom of the casing, and the hydraulic medium filled inside the washing machine foot can be Leveling between the feet of the washing machine.
  • the factory setting of the washing machine of this embodiment is preferably that the heights of the four washing machine feet are the same, and the washing machine is randomly placed at On an uneven bottom surface, the four washing machine feet will bear different pressures according to the unevenness of the bottom surface, and the length of the press-fit sheath of the rear adjusting foot is different, thereby realizing the automatic leveling of the washing machine.
  • the legs are connected in two or two, and may be three or more, and the number N ⁇ 2, preferably two, is the lowest cost, and can achieve a better effect.
  • four ports of the communication device 15 are respectively connected to four legs, and it can be inferred that a communication device 15 having three, five, six, and N ports is used, and the ports are respectively connected to three. Five, six, N feet.
  • the above embodiments are only the four most suitable for realizing the function, so as to achieve cost control to a minimum.
  • the embodiment of the present invention takes the drum washing machine as an example, and illustrates the principle and method for realizing the automatic leveling of the drum washing machine of the present invention. It can be easily recalled that the present invention can be applied to a pulsator washing machine.
  • the embodiment of the present invention takes the washing machine as an example, and illustrates the principle and method for realizing the automatic leveling of the washing machine of the present invention. It can be easily recalled that the present invention can be applied to household appliances such as refrigerators, freezers, dishwashers and the like.
  • the demodulation principle is that when the washing machine is installed, since the floor 600 is uneven, the level of the different washing machine feet 800 is different, and the position of the washing machine foot 800 located at the ground pit 601 is low. It can be known that the position of the washing machine foot 800 first receives the weight of the washing machine, and the gravity is large, and the position of the washing machine foot 800 is small due to the virtual leg or the received gravity.
  • the adjustment foot 300 of the washing machine foot 800 at a high position will move up under a large pressure, and the height of the entire foot becomes smaller, so that the volume compression of the hollow chamber of the oil-filled oil bladder 250 is reduced, forcing the hydraulic oil to enter the section.
  • the orifice or the valve bore enters the lower leg of the lower position through the high pressure oil pipe 700, so that the hydraulic oil of the oil bladder 250 at the lower position is increased, so that the oil bladder 250 expands and pushes the adjustment foot 300 to elongate.
  • the high pressure oil pipe 700 of the embodiment of the present invention is attached to the grease 221 of the washing machine foot 800.

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  • Engineering & Computer Science (AREA)
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Abstract

具有自动调平功能的洗衣机底脚及洗衣机，洗衣机底脚包括：护套（500）；调整脚（300），设置在护套（500）内且可相对其轴向移动；以及柔性体组件（200），设置在调整脚（300）内用于容纳液压介质；所述柔性体组件（200）的一端限位安装于护套（500）内，另一端为作用于调整脚（300）的可伸缩端；所述可伸缩端在液压介质的作用下伸缩带动调整脚（300）轴向移动实现自动调平；所述的柔性体组件（200）包括柔性容纳体、用于安装柔性容纳体的安装组件以及设置在安装组件与柔性容纳体之间用于保护柔性容纳体的保护机构。将柔性体组件（200）限位安装于护套（500）内，避免柔性体组件（200）损坏，另外，通过保护机构的设置，避免柔性容纳体直接接触安装组件，大大减小了柔性容纳体的破损几率，延长其使用寿命。

Description

具有自动调平功能的洗衣机底脚及洗衣机 技术领域
本发明涉及洗衣机技术领域，具体地，涉及具有自动调平功能的洗衣机底脚及洗衣机。
背景技术
家用电器，一般在壳体的底部都设置调平装置，在放置家用电器时，通过调节调平装置可使其达到稳定放置状态，调平后放置后，调平装置可支撑家用电器使其保持稳定。
以洗衣机为例，现有洗衣机一般都是在壳体或者整机底部安装有螺栓底脚，螺栓底脚包括螺杆、螺母垫片和橡胶垫，螺母垫片可以在螺杆上下旋动，螺杆也可以在壳体底板的螺孔中上下旋动，通过螺栓底脚的螺杆旋入底板的螺纹孔的长度来实现洗衣机的高度调整，大部分洗衣机的底脚逆时针旋转为调高，顺时针旋转为降低高度，在调整该螺栓底脚的高度后，将防止松动的螺母垫片拧紧以保持稳固。
上述洗衣机的底脚，虽然实现了洗衣机的调平，但需要用户进行手动调节，若洗衣机自重较大或者设置空间狭小，用户操作即为不便。另外，洗衣机在长期的工作过程中的震动也对调平底脚产生作用，易导致其支撑失效，造成洗衣机放置的不平。
例如，现有8KG滚筒洗衣机一般80Kg左右，较为沉重，消费者调节极为不便，即便完成调节也不能保证洗衣机调整为最佳状态，洗衣机在洗涤尤其是由0r/min加速到1400r/min左右进行甩干脱水时，洗衣机一旦不水平或者虚腿问题存在，将导致极大振动，极大的影响了消费者的使用舒适性。
另外，洗衣机不平导致的震动可能会使底脚螺丝松动，使底脚托架垂直移动，这种不稳定性可能会改变洗衣机的水平状态，导致产生更强烈的震动。这种恶性循环使得洗衣机用的时间长了，噪音会变得越来越大，对洗衣机本身也造成一定的损伤，缩短了使用寿命。
因此，现有洗衣机的调平存在需要手工调节，费时费力且精度较差的问题。
有鉴于此，特提出本发明。
发明内容
为了解决上述问题，本发明的第一发明目的是提供具有自动调平功能的洗衣机底脚，具体地，采用了如下的技术方案：
具有自动调平功能的洗衣机底脚，包括：
护套；
调整脚，设置在护套内且可相对其轴向移动；
以及柔性体组件，设置在调整脚内用于容纳液压介质；
所述柔性体组件的一端限位安装于护套内，另一端为作用于调整脚的可伸缩端；所述可伸缩端在液压介质的作用下伸缩带动调整脚轴向移动实现自动调平；
所述的柔性体组件包括柔性容纳体、用于安装柔性容纳体的安装组件以及设置在安装组件与柔性容纳体之间用于保护柔性容纳体的保护机构。
进一步地，所述的柔性容纳体包括可伸缩的波纹结构、节流细径和开口，所述的开口密封安装在安装组件上；
所述的保护机构为上保护环，上保护环套设在节流细径上，上保护环的上端面限位于安装组件之下，下端面具有与波纹结构相配合的曲面。
进一步地，所述的上保护环包括圆环形的环形本体、环形本体中部用于节流细径穿过的安装孔；
所述的环形本体上开设贯通安装孔的安装槽，安装槽的宽度小于节流细径的外径；
所述的节流细径压缩形变后可由安装槽进入到安装孔内。
进一步地，所述安装槽朝向环形本体外部的开口处设置倒角结构。
进一步地，所述的上保护环上设置上下贯通的限位孔，所述的安装组件上设有用于与限位孔配合的限位凸起。
进一步地，所述的安装组件上设有限位柱，限位柱对应上保护环的安装槽设置。
进一步地，所述的安装组件包括油压板和压板，柔性容纳体的开口通过压板密封连接在油压板的下壁；
所述油压板的一侧设置油嘴，油压板的下壁设置用于油囊内的液压介质流入的油孔，油压板内设置连通油嘴与油孔油道；
所述压板的下端面止抵于所述的保护机构的上端面上。
进一步地，所述的限位凸起设置在所述压板的下端面上。
进一步地，所述的限位柱设置在所述压板的下端面上，且与限位凸起位于同一直径的两端。
本发明的第二发明目的是提供一种洗衣机，具体地，采用了如下的技术方案：
一种具有上述的具有自动调平功能的洗衣机底脚的洗衣机，包括壳体，壳体的底部安装多个所述的洗衣机底脚，洗衣机底脚内部填充的液压介质可在洗衣机底脚之间流通实现调平。
本发明的具有自动调平功能的洗衣机底脚根据液压原理，在底脚中填充液压介质，底脚对于不同的压力，由于液压介质的流动性使得底脚自动进行适应性的调整。
本发明的具有自动调平功能的洗衣机底脚将液压介质盛放在密封的柔性体组件内，且该柔性体组件被安置于调整脚内部，有效解决液压介质泄露的问题，确保底脚工作的稳定性。
本发明的具有自动调平功能的洗衣机底脚将柔性体组件限位安装于护套内，避免柔性体组件损坏，这样可保证柔性体组件工作的稳定性；另外，通过保护机构的设置，避免柔性容纳体直接接触安装组件，大大减小了柔性容纳体的破损几率，延长其使用寿命。
因此，本发明的洗衣机底脚结构简单，成本较；使用方便，可靠性高；可显著降低振动，降低噪音，提高洗衣机的用户体验的舒适度。
附图说明
图1本发明实施例具有自动调平功能的洗衣机底脚的爆炸图一；
图2本发明实施例具有自动调平功能的洗衣机底脚的爆炸图二；
图3本发明实施例具有自动调平功能的洗衣机底脚的立体结构示意图；
图4本发明实施例具有自动调平功能的洗衣机底脚的俯视图；
图5本发明实施例具有自动调平功能的洗衣机底脚沿图4的A-A面剖视图；
图6本发明实施例具有自动调平功能的洗衣机底脚沿图4的B-B面剖视图；
图7本发明实施例具有自动调平功能的洗衣机底脚沿图4的C-C面剖视图；
图8本发明实施例具有自动调平功能的洗衣机底脚沿图4的D-D面剖视图；
图9本发明实施例具有自动调平功能的洗衣机底脚的压板的立体机构示意图；
图10本发明实施例具有自动调平功能的洗衣机底脚的上保护板的立体机构示意图一；
图11本发明实施例具有自动调平功能的洗衣机底脚的上保护板的立体机构示意图二；
图12本发明实施例具有自动调平功能的洗衣机底脚的调平原理图。
附图中的标号说明：100-轴向限位装置 101-卡簧 102-限位凸起 103-孔 200-柔性体组件 210-限位板 211-限位爪 212-限位板安装孔 220-油压板 221-油嘴 222-油压板安装孔 223-密封槽 224-油孔 225-密封筋 226-油道 230-压板 231-压板安装孔232-密封压合台阶 233-压板下环 234-定位柱 235-定位凸起 240-上保护环 241-安装孔 242-安装槽 243-倒角结构 244-限位孔 250-油囊 251-开口 252-节流细径 253-波纹结构 300-调整脚 301-中空腔室 302-导向限位块 303-筒体 400-弹性垫片 401- 加强贴合筋 402-阻尼筋 500-护套 501-导向限位槽 502-限位槽 503-护套固定孔504-护套平面 505-环形槽 506-套体 507-止挡部 600-地面 601-地面凹坑 700-高压油管 800-洗衣机底脚。
具体实施方式
下面结合附图对本发明的具有自动调平功能的洗衣机底脚及洗衣机进进行详细描述：
实施例一
如图1-8所示，本实施例的具有自动调平功能的洗衣机底脚，包括：
护套500；
调整脚300，设置在护套500内且可相对其轴向移动；
以及柔性体组件200，设置在调整脚300内用于容纳液压介质；
所述柔性体组件200的一端限位安装于护套500内，另一端为作用于调整脚300的可伸缩端；
所述柔性体组件200的可伸缩端在液压介质的作用下伸缩带动调整脚300轴向移动实现自动调平。
本实施例洗衣机底脚设置在洗衣机的底板四个角上或者沿底板圆周方向均匀设置至少四个，所述洗衣机底脚中至少两个相互连通：当洗衣机所处的地面不平时，导致各个洗衣机底脚受力不同，相互连通的洗衣机底脚内的液压介质由受力大的流向受力小的，随着液压介质的流通，柔性体组件200进行伸缩，进一步带动调整脚300轴向移动实现自动调平。
本实施例的洗衣机底脚之间相互连通，使得洗衣机底脚内部的液压介质能够在洗衣机底脚之间进行连通，当其中一个洗衣机底脚受力压缩时，液压介质流通至与其连通的另一个洗衣机底脚，另一个洗衣机底脚内液压介质增多，压力增大使其伸出，以确保足够的支撑力。
本实施例的具有自动调平功能的洗衣机底脚将柔性体组件200限位安装于护套500内，避免柔性体组件200损坏，这样可保证柔性体组件200工作的稳定性。
另外，本实施例的具有自动调平功能的洗衣机底脚组装效率高、简单方便，且受力部件(如护套500)可采用钣金制作，或锌合金铸造，或采用高性能工程塑料如PPS、PI、PEEK等注塑，可靠性高。
本实施例的具有自动调平功能的洗衣机底脚提供一种优化的结构，组装简单，便于安装，且尽可能的避免柔性体组件200遭受损伤，以确保洗衣机底脚的整体稳定性，延长使 用寿命。
具体地，本实施例所述的护套500包括内部具有中空通道的套体506，所述调整脚300可轴向滑动的设置在套体506的中空通道内，且一端伸出套体506的中空通道，用于与地面接触，且能根据地面高地在液压介质作用下轴向滑动实现自动调平。
本实施例所述套体506的一端开口向中空通道的外侧翻边延伸形成护套平面504，护套平面504与洗衣机的底板贴合并通过连接件固定连接。本实施例的套体506通过护套平面504固定安装在洗衣机的底板上，而柔性体组件200设置在护套500，这样，护套500与底板发生相互作用，而柔性体组件200不承受洗衣机的作用力，只在液压介质的作用下伸缩，保证其工作的稳定性。
本实施例的套体506为圆筒结构，具有一定长度与调整脚300配合，至少包裹着调整脚300的一部分。
本实施例的套体506上部具有冲压一体形成翻边结构，形成护套平面504。护套平面504上具有护套固定孔503，进而可以将护套500乃至整个洗衣机底脚通过螺钉或者螺栓紧紧牢固在洗衣机的底板上。
优选地，本实施例的护套500可以选用塑料一体注塑、铝合金压铸等，优选的是钣金冲压制作。
本实施例所述的柔性体组件200包括油压板220、压板230和油囊250，油囊250的开口通过压板230密封连接在油压板220的下壁。
本实施例的油压板220的一侧设置油嘴221，油压板220的下壁设置用于油囊250内的液压介质流入的油孔224，油压板220内设置连通油嘴221与油孔224油道226。
本实施例所述油压板220限位安装于套体506的护套平面504一端，油囊250设置在护套500内并与其内壁接触。
本实施例的油压板220一体注塑或者压铸成型的部件，上面具有至少两个油嘴221，用于洗衣机底脚之间的相互连通，使得液压介质在洗衣机底脚之间传递。
本实施例的油压板220中间位置具有油孔224，内部具有油道226，确保油囊250内部的液压介质可以通过所述油孔224经油道226流至油嘴221，进而可以实现多个洗衣机底脚的液压介质根据压力的大小的自由流动，实现自动调平。
本实施例的油囊250内盛装液压介质，油压板220用于油囊250的液压介质的密封且使油囊250内的液压介质由油压板220的油嘴221流出/流入，压板230用于保证油囊250的开口与油压板220之间的密封连接，避免发生液压介质的泄露。
本实施例的柔性体组件200的油囊250为柔性材料制成的可伸缩结构，优选的是柔性材料具有弹性，能够实现形变恢复。而油压板220为一体注塑或者压铸成型的部件，因此，只需要将油压板220限位安装于套体506内，即可实现柔性体组件200的限位安装。
本实施例为了实现柔性体组件200的限位安装，主要需要限定柔性体组件200的周向转动运动和轴向的上下窜动。为了限定柔性体组件200的周向转动运动，具体地：
本实施例的柔性体组件200还包括限位板210，限位板210包括多个凸出设置的限位爪211，所述的套体506设置与其配合限位的限位槽502；所述的限位板210、油压板220和压板230固定连接，以限定柔性体组件200设置在调整脚300内的周向转动。
本实施例的柔性体组件200通过限位板210的限位爪211与套体506的限位槽502相配合，使得柔性体组件200无法进行周向转动。
本实施例的限位板210的限位爪211包括多个，根据油压板220的具体结构及安装进行设置。
具体地，所述套体506的开设用于油压板220的油嘴221伸出的开口，因此，可当设置限位爪211时需考虑该开口的位置，避开该开口，以保证限位安装。
本实施例的限位板210具有限位板安装孔212，油压板220具有油压板安装孔222，压板230具有压板安装孔231，可以通过螺钉或者螺栓将压板230、油压板220，限位板210紧紧固定在一起。
本实施例的护套500安装在洗衣机的底板上，油压板220紧固在限位板210，限限位板210上下都被限位，下部为护套500的限位槽502的最低端，且限位爪211和限位槽502至少使得限位板210在圆周方向上都有受力支撑点，即限位爪211和限位槽502沿圆周方向尽可能的均匀分布。
优选地，限位板210采用钣金冲压制作，简单成本低。
本实施例洗衣机底脚为了限定柔性体组件200的周向转动运动，具体地：
本实施例洗衣机底脚还包括轴向限位装置100，轴向限位装置100设置于护套500内，轴向限位装置100的一侧限位于洗衣机的底板，另一侧作用于柔性体组件200用于限定其轴向移动。
本实施例通过轴向限位装置对柔性体组件200的轴向移动进行限位，进而保证柔性体组件200的稳定工作。
作为本实施例的一种优选实施方式，所述的轴向限位装置为具有一豁口的环形卡簧101，所述的护套500内壁设置环形槽505，所述的卡簧101卡设于环形槽505内且位于所 述柔性体组件200的限位板210之上。采用卡簧101安装拆卸简单方便，且成本低。护套500内壁设置环形槽505可有效的将卡簧101进行限位，确保卡簧101安装的稳定性。
本实施例在护套500内圆周上具有环形槽505，可以是冲压，优选的是机加工一个环形槽505。在护套500安装了限位板210后，上部卡簧101安装。卡簧101安装后，限位板210上下不再运动。
进一步地，本实施例所述卡簧101的上表面设置凸出设置的限位凸起102，凸起102可在卡簧100发生轴向窜动时进一步起到轴向限位作用。所述卡簧101具有限位凸起102，便于受力均匀。
进一步地，本实施例所述卡簧100上设置用于工具操作的孔103。所述卡簧101具有孔103，便于工具安装。
本实施例所述的油囊250包括可伸缩的波纹结构253、节流细径252和开口251，节流细径252与波纹结构253连通，开口251位于节流细径252的端部。
柔性体组件200还包括上保护环240，上保护环240中心具有用于节流细径252通过的安装孔241，上保护环240具有安装槽242，安装槽242的一端开口贯通安装孔241，另一端开口开设在上保护环240的侧壁上。
节流细径252通过安装槽242进入到安装孔241内。
上保护环240的下部表面具有与油囊250匹配的贴合面，防止高压下，油囊250向上部挤压破损。
上保护环240的中间具有安装孔241，且具有安装槽242结构，安装槽242的外部具有倒角结构243，使得油囊250的节流细径252位置更容易安装在上保护环的安装孔241中。
安装孔241能够保证节流细径252处强度，避免破损，防止此处变形，确保油囊250的节流细径252一直打开，从而保证洗衣机底脚的工作有效性。
上保护环与油囊接触部分与油囊形状一致。
上保护环与调整脚的空腔结构形成一个较为密封的空间，内部放置的油囊由这两个部件保护，有效防止油囊膨胀破裂或者损伤。
当调整脚受力时，调整脚向上移动，挤压油囊及内部液体介质，进而传力给上保护环。而由于上保护环上部是压板、油压板乃至洗衣机的底板，上保护环无法往上移动，进而被压入调整脚内部并挤压液体介质流出。
所述上保护与压板非一体固定的，便于上保护环的自调节，是因为调整脚底部受力的不均匀，虽然有限位结构，也可能会稍微偏转，使得上保护环稍微偏转，上保护环的圆周 面与调整脚的内圆周面同心，上保护环进而压入调整脚内部。
油囊250具有开口251、节流细径252和波纹结构253，内部容纳液体介质，优选地，所述的液压介质为液压油。
油囊250的材料为耐油的弹性体材料，如丁腈橡胶、丙烯酸酯橡胶、硅胶等。
由于油囊250处于上下压缩伸展的工作状态，为提高其可靠性和寿命，油囊250主体设置成波纹结构253。
油囊250与调整脚300、上保护环240的空间都是贴合的，只有在波纹结构253位置有一定的空隙。
本实施例的洗衣机底脚对柔性体组件200进行限位安装，主要是为了避免在自动调平过程中洗衣机底脚转动导致的不稳定性。因此，进一步地，本实施例的洗衣机底脚还对调整脚的运动进行了限定，使其只进行上下运动而不发生转动，以保证调平过程的稳定，具体地：
本实施例的护套500的内壁上设置导向限位槽501，所述调整脚300的外壁设置导向限位块302，所述的导向限位块302限位于导向限位槽501并沿其轴向滑动。
护套500具有导向限位槽501使得调整脚300只能在护套500内部上下运动，不可以圆周旋转，避免了调整脚300在护套500内转动。所述限位导向槽501最底部具有止挡部507，与调整脚300圆周凸起的限位块302配合，防止调整脚300由护套500中脱落。
本实施例的护套500的底壁外侧设置弹性垫片400，所述护套500的底壁上设置加强贴合槽，弹性垫片400的上表面设置与加强贴合槽相配合的加强贴合筋401，弹性垫片400的下表面设置部分凹陷形成阻尼筋402。
优选地，所述的弹性垫片400为橡胶垫片。调整脚300与橡胶垫片为增加连接强度，调整脚300底部设置有加强贴合槽，橡胶垫片上具有加强贴合筋401，优选的橡胶一体注塑在所述调整脚300上。所述橡胶垫片与地面接触的地方优选的设置了一些凹陷的图案，形成了阻尼筋401，增加了底脚与底面摩擦阻尼，防止洗衣机由于振动导致的移位。
本实施例还涉及一种洗衣机底脚的装配方法：
以护套500为基准
1)将带有橡胶垫片的调整脚300由护套500上端开口放入。
注意，调整脚300的导向限位块302与护套500的导向限位槽501一定要配合。
2)将油囊250的节流细径252处安装进上保护环240，将油囊250的开口插入油压板220的凸起部放置在密封槽223处，将压板230压住油囊250的开口，通过螺钉或者螺栓穿过限位板安装孔212、油压板安装孔222和压板安装孔231，进而将油囊250、上保护环240、 压板230、油压板220和限位板210组成柔性体组件200。将柔性体组件200放入调整脚300的中空腔室301内。
3)柔性体组件200的限位板210安装在护套500内，限位板210的下部由限位槽502限制，圆周由限位爪211和限位槽502限位。
4)在护套500的环形槽505放置卡簧101，柔性体组件200上下、圆周方向都相对护套500不再运动，固定在一起。
组装完成，组装效率高，简单方便，且受力部件都为钣金制作，具有高可靠性。
实施例二
如图1-11所示，本实施例的具有自动调平功能的洗衣机底脚，包括：
护套500；
调整脚300，设置在护套500内且可相对其轴向移动；
以及柔性体组件200，设置在调整脚300内用于容纳液压介质；
所述柔性体组件200的一端限位安装于护套500内，另一端为作用于调整脚300的可伸缩端；所述可伸缩端在液压介质的作用下伸缩带动调整脚轴向移动实现自动调平；
所述的柔性体组件200包括柔性容纳体、用于安装柔性容纳体的安装组件以及设置在安装组件与柔性容纳体之间用于保护柔性容纳体的保护机构。
本实施例的柔性容纳体一般为采用柔性材质制成，而安装组件一般结构较为坚硬，柔性容纳体的安装在安装组件上，若两者直接接触将发生相互作用，安装组件有可能造成柔性容纳体的破损，那样的话本实施例的洗衣机底脚将失去作用。
本实施例为了保护柔性容纳体，在安装组件与柔性容纳体之间设置保护机构，避免柔性容纳体直接接触安装组件，减少破损几率。
为了实现保护机构对柔性容纳体的保护作用，本实施例的保护机构应该采用柔性材料制成和/或具有一与柔性容纳体贴合的弧形面，这样可以对柔性容纳体进行有效的缓冲，避免其发生破损。
优选地，本实施例的保护机构可采用橡胶材料等柔性材料制成。
进一步地，本实施例所述的柔性容纳体包括可伸缩的波纹结构253、节流细径252和开口251，所述的开口251密封安装在安装组件上；所述的保护机构为上保护环240，上保护环240套设在节流细径252上，上保护环240的上端面限位于安装组件之下，下端面具有与波纹结构253相配合的曲面。
本实施例根据柔性容纳体的结构特点，采用上保护环240作为柔性容纳体，上保护环上的曲面可与波纹结构253相配合，这样，波纹结构的上端面贴合在上保护环的曲面上， 使得波纹结构的上端面受力均匀，避免局部应力集中造成破损。
具体地，本实施例所述的上保护环240包括圆环形的环形本体、环形本体中部用于节流细径251穿过的安装孔241；所述的环形本体上开设贯通安装孔241的安装槽242，安装槽242的宽度小于节流细径251的外径；所述的节流细径251压缩形变后可由安装槽242进入到安装孔241内。
本实施例的上保护环240设置的安装槽242方便了柔性容纳体的安装，同时，使得柔性容纳体安装后能够限定在安装孔241内。
进一步地，本实施例所述安装槽242朝向环形本体外部的开口处设置倒角结构243，柔性容纳体更易于进入到安装槽242中，并由其进入到安装孔241内。
本实施例的具有自动调平功能的洗衣机底脚，通过在安装组件与柔性容纳体之间设置保护机构对柔性容纳体进行保护，进一步地，对上保护环的安装进行限位，所述的上保护环240上设置上下贯通的限位孔244，所述的安装组件上设有用于与限位孔244配合的限位凸起235。这样，本实施例的安装组件固定安装在调整脚300内或者固定安装在洗衣机的底板上，安装组件又通过限位凸起235与上保护环240的限位孔244的配合实现了上保护环240的周向限位，避免上保护环240与柔性容纳体之间相互转动，发生磨损。
进一步地，本实施例所述的安装组件上设有限位柱234，限位柱234对应上保护环240的安装槽242设置。通过限位柱234进一步对上保护环240进行限位，而且，由于限位柱234对应安装槽242设置，不用再在上保护环240上额外开设限位孔。
具体地，本实施例所述的安装组件包括油压板220和压板230，柔性容纳体的开口通过压板230密封连接在油压板220的下壁；所述油压板220的一侧设置油嘴221，油压板220的下壁设置用于油囊250内的液压介质流入的油孔224，油压板220内设置连通油嘴221与油孔224油道226；所述压板230的下端面止抵于所述的保护机构的上端面上。压板230实现了上保护环240在竖直方向上的限制。
本实施例所述的限位凸起235设置在所述压板230的下端面上。
进一步地，所述的限位柱234设置在所述压板230的下端面上，且与限位凸起235位于同一直径的两端。
实施例三
本实施例同时提供了一种具有上述的具有自动调平功能的洗衣机底脚的洗衣机，包括壳体，壳体的底部安装多个所述的洗衣机底脚，洗衣机底脚内部填充的液压介质可在洗衣机底脚之间流通实现调平。
本实施例的洗衣机出厂设置优选的是四个洗衣机底脚的高度一致，洗衣机随机放置在 一个不平整的底面上，四个洗衣机底脚会根据底面的不平状况承受不同的压力，而后调整脚的压入护套的长度不同，进而实现洗衣机的自动调平。
需要对上述实施例进一步说明的是：
1、本发明实施例中的底脚两两联通，也可以是三个乃至更多，数量N≥2，优选两个，成本最低，且能够实现较好的效果。
本发明实施例中使用连通装置15的四个端口分别连接四个底脚，可以推理到的是使用一个具有三、五、六，N个端口的连通装置15，其所述端口分别连接三、五、六，N个底脚。上述实施例仅仅是能够实现所述功能情况下用最适合的4个，以实现成本的控制到最小。
2、本发明实施例以滚筒洗衣机为例，阐述了本发明实现滚筒洗衣机自动调平的原理和方法，可以很容易联想到的是本发明可以应用到波轮洗衣机。
3、本发明实施例以洗衣机为例，阐述了本发明实现洗衣机自动调平的原理和方法，可以很容易联想到的是本发明可以应用到冰箱、冰柜、洗碗机等家用电器上。
如图12所示，具体讲解调平原理，当洗衣机安装后，由于地面600不平，导致不同的洗衣机底脚800的水平高度不同，位于地面凹坑601处的洗衣机底脚800位置低。由此可以知道的是，位置高处洗衣机底脚800首先承受洗衣机的重量，并且承受的重力大，位置低洗衣机底脚800由于虚腿或者承受的重力小。
位置高处洗衣机底脚800的调整脚300在大的压力下将上移，整个底脚的高度变小使充满液压油的油囊250的中空腔室的容积压缩减小，迫使液压油进入节流孔或者阀孔通过高压油管700进入位置低处底脚内，使位置低处底脚的油囊250的液压油越来越多，使得油囊250膨胀推动调整脚300伸长。
当位置高处底脚和位置低处底脚的液压相同，液压油不再由高压油管700流动，调整脚与洗衣机底板的相对位置不再变化，完成洗衣机底脚的自动调整。
在洗衣机洗涤或者甩干的过程中，由于液压油还可以缓慢流动自调平，洗衣机的振动噪音大大降低。
本发明实施例的高压油管700连接在洗衣机底脚800的油嘴221上。
以上所述仅是本发明的较佳实施例而已，并非对本发明作任何形式上的限制，虽然本发明已以较佳实施例揭露如上，然而并非用以限定本发明，任何熟悉本专利的技术人员在不脱离本发明技术方案范围内，当可利用上述提示的技术内容作出些许更动或修饰为等同变化的等效实施例，但凡是未脱离本发明技术方案的内容，依据本发明的技术实质对以上实施例所作的任何简单修改、等同变化与修饰，均仍属于本发明方案的范围内。

Claims (10)

  1. 具有自动调平功能的洗衣机底脚，其特征在于，包括：
    护套(500)；
    调整脚(300)，设置在护套(500)内且可相对其轴向移动；
    以及柔性体组件(200)，设置在调整脚(300)内用于容纳液压介质；
    所述柔性体组件(200)的一端限位安装于护套(500)内，另一端为作用于调整脚(300)的可伸缩端；所述可伸缩端在液压介质的作用下伸缩带动调整脚轴向移动实现自动调平；
    所述的柔性体组件(200)包括柔性容纳体、用于安装柔性容纳体的安装组件以及设置在安装组件与柔性容纳体之间用于保护柔性容纳体的保护机构。
  2. 根据权利要求1所述的具有自动调平功能的洗衣机底脚，其特征在于，
    所述的柔性容纳体包括可伸缩的波纹结构(253)、节流细径(252)和开口(251)，所述的开口(251)密封安装在安装组件上；
    所述的保护机构为上保护环(240)，上保护环(240)套设在节流细径(252)上，上保护环(240)的上端面限位于安装组件之下，下端面具有与波纹结构(253)相配合的曲面。
  3. 根据权利要求1或2所述的具有自动调平功能的洗衣机底脚，其特征在于，
    所述的上保护环(240)包括圆环形的环形本体、环形本体中部用于节流细径(251)穿过的安装孔(241)；
    所述的环形本体上开设贯通安装孔(241)的安装槽(242)，安装槽(242)的宽度小于节流细径(251)的外径；
    所述的节流细径(251)压缩形变后可由安装槽(242)进入到安装孔(241)内。
  4. 根据权利要求3所述的具有自动调平功能的洗衣机底脚，其特征在于，所述安装槽(242)朝向环形本体外部的开口处设置倒角结构(243)。
  5. 根据权利要求1-4任意一项所述的具有自动调平功能的洗衣机底脚，其特征在于，
    所述的上保护环(240)上设置上下贯通的限位孔(244)，所述的安装组件上设有用于与限位孔(244)配合的限位凸起(235)。
  6. 根据权利要求1-5任意一项所述的具有自动调平功能的洗衣机底脚，其特征在于，
    所述的安装组件上设有限位柱(234)，限位柱(234)对应上保护环(240)的安装槽(242)设置。
  7. 根据权利要求1-6任意一项所述的具有自动调平功能的洗衣机底脚，其特征在于，
    所述的安装组件包括油压板(220)和压板(230)，柔性容纳体的开口通过压板(230) 密封连接在油压板(220)的下壁；
    所述油压板(220)的一侧设置油嘴(221)，油压板(220)的下壁设置用于油囊(250)内的液压介质流入的油孔(224)，油压板(220)内设置连通油嘴(221)与油孔(224)油道(226)；
    所述压板(230)的下端面止抵于所述的保护机构的上端面上。
  8. 根据权利要求7所述的具有自动调平功能的洗衣机底脚，其特征在于，所述的限位凸起(235)设置在所述压板(230)的下端面上。
  9. 根据权利要求8所述的具有自动调平功能的洗衣机底脚，其特征在于，所述的限位柱(234)设置在所述压板(230)的下端面上，且与限位凸起(235)位于同一直径的两端。
  10. 一种具有如权利要求1-9任意一项所述的具有自动调平功能的洗衣机底脚的洗衣机，其特征在于，包括壳体，壳体的底部安装多个所述的洗衣机底脚，洗衣机底脚内部填充的液压介质可在洗衣机底脚之间流通实现调平。
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