CN108662359B - Leveling device of household appliance and washing machine with leveling device - Google Patents
Leveling device of household appliance and washing machine with leveling device Download PDFInfo
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- CN108662359B CN108662359B CN201710203628.5A CN201710203628A CN108662359B CN 108662359 B CN108662359 B CN 108662359B CN 201710203628 A CN201710203628 A CN 201710203628A CN 108662359 B CN108662359 B CN 108662359B
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- 238000005406 washing Methods 0.000 title claims abstract description 43
- 230000008859 change Effects 0.000 claims abstract description 6
- 230000000670 limiting effect Effects 0.000 claims description 38
- 239000007788 liquid Substances 0.000 claims description 29
- 238000013016 damping Methods 0.000 claims description 14
- 238000004891 communication Methods 0.000 claims description 12
- 238000007789 sealing Methods 0.000 claims description 11
- 230000002093 peripheral effect Effects 0.000 claims description 7
- 230000007246 mechanism Effects 0.000 claims description 6
- 238000003825 pressing Methods 0.000 claims description 5
- 230000009471 action Effects 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000009434 installation Methods 0.000 description 17
- 230000006835 compression Effects 0.000 description 5
- 238000007906 compression Methods 0.000 description 5
- 230000005484 gravity Effects 0.000 description 5
- 230000033001 locomotion Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000035939 shock Effects 0.000 description 5
- 238000004512 die casting Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000001125 extrusion Methods 0.000 description 4
- 238000001746 injection moulding Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 208000027906 leg weakness Diseases 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M7/00—Details of attaching or adjusting engine beds, frames, or supporting-legs on foundation or base; Attaching non-moving engine parts, e.g. cylinder blocks
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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
- 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
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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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/022—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using dampers and springs in combination
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/023—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using fluid means
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention provides a leveling device of household appliances and a washing machine with the leveling device, wherein the leveling device comprises a hydraulic footing, and the hydraulic footing comprises: a fixed part; the movable adjusting part is sleeved outside the fixed part and can axially move relative to the fixed part; an accommodating chamber for accommodating a hydraulic medium is arranged between the fixed part and the movable adjusting part; along with the change of the pressure, the hydraulic medium drives the movable adjusting part to axially move along the outer part of the sheath to level. According to the leveling device, after the hydraulic bottom feet are fixed on the bottom plate of the household appliance, the movable adjusting part capable of moving up and down is sleeved outside the fixed part, so that the transverse size of the movable adjusting part can be increased, the contact area between the movable adjusting part and the supporting surface is effectively increased, and the supporting stability of the leveling device on the household appliance is improved.
Description
Technical Field
The invention relates to the technical field of supporting and leveling of household appliances, in particular to a leveling device of a household appliance and a washing machine with the leveling device.
Background
The household electrical appliance is generally provided with a leveling device at the bottom of a shell, the household electrical appliance can be placed stably by adjusting the leveling device, and the household electrical appliance can be supported and kept stable after being placed after being leveled.
Taking a washing machine as an example, the bolt footing is generally installed at the bottom of a shell or the whole washing machine in the prior art, the bolt footing comprises a screw rod, a nut gasket and a rubber pad, the nut gasket can rotate up and down on the screw rod, the screw rod can also rotate up and down in a screw hole of a bottom plate of the shell, the height of the washing machine can be adjusted by the length of the screw rod of the bolt footing screwed into the screw hole of the bottom plate, the feet of most washing machines rotate anticlockwise for height adjustment, and rotate clockwise for height reduction, and after the height of the bolt footing is adjusted, the nut gasket which is prevented from loosening is screwed down to keep stable.
The bottom foot of the washing machine realizes the leveling of the washing machine, but needs manual adjustment by a user, and if the washing machine has heavy dead weight or the setting space is narrow, the operation of the user is inconvenient. In addition, the vibration of the washing machine in the long-term working process also acts on the flat bottom of the exchange, so that the support of the washing machine is easy to lose efficacy, and the washing machine is not placed flatly.
For example, the existing 8KG drum washing machine is generally about 80KG, heavy, inconvenient for consumers to adjust, and even if the adjustment is completed, the adjustment of the washing machine cannot be guaranteed to be in the best state, and once the washing machine is not horizontal or has leg weakness problems when the washing machine is used for spin-drying and dewatering from 0r/min to 1600r/min, the washing machine vibrates greatly, and the use comfort of the consumers is greatly influenced.
In addition, vibration caused by the unevenness of the washing machine may loosen the foot screw to move the foot bracket vertically, and such instability may change the horizontal state of the washing machine, resulting in more intense vibration. The vicious circle prolongs the time for the washing machine, the noise becomes bigger and bigger, certain damage is caused to the washing machine, and the service life is shortened.
Therefore, the leveling of the existing washing machine has the problems of time and labor waste and poor precision due to the fact that manual adjustment is needed.
In view of the above, the present invention is particularly proposed.
Disclosure of Invention
In order to solve the above problems, the present invention provides a leveling device for a household appliance, specifically, the following technical solution is adopted:
a leveling device of a household appliance comprises a hydraulic foot, and the hydraulic foot comprises:
a fixed part;
the movable adjusting part is sleeved outside the fixed part and can axially move relative to the fixed part;
an accommodating chamber for accommodating a hydraulic medium is arranged between the fixed part and the movable adjusting part;
along with the change of the pressure, the hydraulic medium drives the movable adjusting part to axially move along the outer part of the fixing part to level.
Furthermore, the fixed part comprises a hydraulic plate and a sheath fixedly connected with the hydraulic plate, and a hollow cavity which is axially communicated is arranged in the sheath; the movable adjusting part is an adjusting foot, and an internal cavity with an open end is arranged in the adjusting foot;
the open end of the adjusting foot is sleeved outside the sheath and can move axially relative to the sheath, and the hollow cavity and the inner cavity form an accommodating cavity together.
Furthermore, a limiting mechanism for preventing the adjusting foot from falling off from the sheath is arranged on the sheath and/or the adjusting foot.
Furthermore, the limiting mechanism comprises a sheath stop arranged on the outer peripheral wall of the sheath and an adjusting foot stop arranged in the inner cavity of the adjusting foot; when the adjusting foot axially moves to the lowest end along the outer part of the sheath, the sheath stop abuts against the adjusting foot stop to prevent the adjusting foot from falling off.
Furthermore, a limiting sliding block/a limiting sliding groove is arranged on the outer peripheral wall of the sheath, a limiting sliding groove/a limiting sliding block is arranged on the inner wall of the inner cavity of the adjusting foot, and the limiting sliding block axially slides along the limiting sliding groove to limit the relative rotation between the adjusting foot and the sheath;
preferably, the end part of the limiting sliding groove is provided with a limiting stop used for preventing the limiting sliding block from coming out.
Furthermore, the fixed part is in dynamic sealing connection with the movable adjusting part;
or the hydraulic foot further comprises a flexible accommodating body arranged in the accommodating cavity, a cavity is formed in the flexible accommodating body, the hydraulic medium is accommodated in the cavity, and the flexible accommodating body deforms along with the flow of the hydraulic medium to drive the movable adjusting part to axially move along the outer part of the fixing part for leveling;
preferably, a liquid flow channel is arranged in the hydraulic plate, the flexible accommodating body comprises an opening, and the opening of the flexible accommodating body is hermetically arranged on the hydraulic plate and is communicated with the liquid flow channel.
Furthermore, the sheath comprises a columnar body with a hollow cavity which is axially communicated inside, the adjusting foot is of a columnar structure with an open internal cavity inside, one end of the columnar body is sleeved in the adjusting foot, and the other end of the columnar structure is turned outwards to form a connecting plate which is fixedly attached to the hydraulic plate;
preferably, the columnar body and the columnar structure are both cylindrical, and the diameter of the columnar body is smaller than that of the columnar structure.
Furthermore, the hydraulic foot also comprises a damping gasket, and the damping gasket is arranged at one end of the movable adjusting part, which is contacted with the supporting surface;
preferably, the damping gasket is provided with damping lines for increasing friction force.
Furthermore, at least two hydraulic feet are communicated through a communication device, and under the action of different pressures, hydraulic media can circulate among the hydraulic feet until the hydraulic pressure is balanced to realize leveling.
Furthermore, the communication device comprises a hydraulic pipe and a communication piece with a liquid flow channel inside, one end of the hydraulic pipe is connected with the hydraulic foot, and the other end of the hydraulic pipe is connected with one end of the liquid flow channel of the communication piece;
the liquid flow channel is internally provided with a liquid flow channel or a plurality of liquid flow channels which are mutually communicated so as to communicate two or more than two hydraulic feet.
According to the leveling device disclosed by the invention, according to a hydraulic principle, due to different pressures generated by unevenness, the mobility of a hydraulic medium enables the movable adjusting part to automatically perform adaptive adjustment until the leveling device reaches balance, and the hydraulic medium stops flowing, so that automatic leveling is realized.
According to the leveling device, after the hydraulic bottom feet are fixed on the bottom plate of the household appliance, the movable adjusting part capable of moving up and down is sleeved outside the fixed part, so that the transverse size of the movable adjusting part can be increased, the contact area between the movable adjusting part and the supporting surface is effectively increased, and the supporting stability of the leveling device on the household appliance is improved.
Drawings
FIG. 1 is a schematic view of a leveling device of a home appliance according to an embodiment of the present invention;
FIG. 2 is a schematic perspective view of a leveling device of a household appliance according to an embodiment of the present invention;
FIG. 3 is a top view of a leveling device for a household appliance in accordance with an embodiment of the present invention;
fig. 4 is a sectional view of a leveling device of a home appliance according to an embodiment of the present invention.
Reference numbers in the drawings illustrate: 100-hydraulic foot 101-hydraulic plate 1011-mounting hole 1012-liquid flow channel 1013-hydraulic nozzle 102-hydraulic medium 103-sheath 1031-sheath stopper 104-adjusting foot 1041-adjusting foot stopper 105-damping gasket 200-hydraulic pipe 300-communicating piece 301-pouring opening 302-liquid flow channel 303-connecting nozzle.
Detailed Description
The leveling device of a household appliance and a washing machine having the same according to the present invention will be described in detail with reference to the accompanying drawings:
example one
As shown in fig. 1 to 4, the leveling device of a household appliance of the present embodiment includes a hydraulic foot 100, and the hydraulic foot 100 includes:
a fixed part;
the movable adjusting part is sleeved outside the fixed part and can axially move relative to the fixed part;
an accommodating chamber for accommodating a hydraulic medium is arranged between the fixed part and the movable adjusting part;
along with the change of the pressure, the hydraulic medium flows to drive the movable adjusting part to axially move along the outer part of the fixed part to level.
According to the leveling device of the embodiment, according to a hydraulic principle, due to different pressures generated by unevenness, the mobility of a hydraulic medium enables the movable adjusting part to automatically adjust the adaptability until the leveling device reaches balance, and the hydraulic medium stops flowing, so that automatic leveling is realized.
According to the leveling device, after the hydraulic bottom feet are fixed on the bottom plate of the household appliance, the movable adjusting part capable of moving up and down is sleeved outside the fixing part, so that the transverse size of the movable adjusting part can be increased, the contact area between the movable adjusting part and the supporting surface is effectively increased, and the supporting stability of the leveling device on the household appliance is improved.
As an implementation manner of this embodiment, the fixing portion includes a hydraulic plate 101 and a sheath 103 fixedly connected to the hydraulic plate 101, and a hollow chamber axially penetrating through the sheath 103 is provided therein; the movable adjusting part is an adjusting foot 104, and an internal cavity with an open end is arranged in the adjusting foot 104; the open end of the adjusting foot 104 is sleeved outside the sheath 103 and can move axially relative to the sheath, and the hollow chamber and the inner chamber together form an accommodating chamber. The adjusting foot 104 of the embodiment is sleeved outside the sheath 103, so that the contact area between the adjusting foot and the supporting surface can be increased, and the supporting stability of the leveling device is improved.
Further, since the adjusting foot 104 will move axially along the sheath 103 to achieve supporting and leveling, for the leveling stability of the leveling device, a limiting mechanism for preventing the adjusting foot 104 from coming off the sheath 103 is provided on the sheath 103 and/or the adjusting foot 104 in this embodiment.
As shown in fig. 4, as a preferred embodiment of the present embodiment, the limiting mechanism of the present embodiment includes a sheath stopper 1031 disposed on the outer peripheral wall of the sheath 103 and a setting foot stopper 1041 disposed in the internal cavity of the setting foot 104; when the adjusting foot 104 moves to the lowest end along the outer axial direction of the sheath 103, the sheath stopper 1031 abuts against the adjusting foot stopper 1041 to prevent the adjusting foot from being removed.
Specifically, the sheath stopper 1031 of the present embodiment is formed by turning the lower end of the sheath 103 outward to form an annular rib protruding from the outer peripheral wall surface of the sheath 103, and the adjustment leg stopper 1041 is formed by turning the opening of the adjustment leg 104 inward to form an annular rib protruding from the inner wall of the inner chamber.
As a preferred implementation manner of this embodiment, a limiting sliding block/a limiting sliding groove is disposed on the outer peripheral wall of the sheath 103, and a limiting sliding groove/a limiting sliding block is disposed on the inner wall of the inner cavity of the adjusting foot 104, and the limiting sliding block axially slides along the limiting sliding groove to limit the relative rotation between the adjusting foot and the sheath. The embodiment prevents the relative rotation between the sheath 103 and the adjusting foot 104, so that the two move only axially relative to each other, and the leveling process is more stable and effective.
The limiting sliding groove/limiting sliding block of the embodiment can be matched with the stopping structure to implement, and can also be implemented independently, and furthermore, the end part of the limiting sliding groove is provided with a limiting stopping block used for preventing the limiting sliding block from being separated.
The hydraulic foot 100 of this embodiment adopts the hydraulic principle to realize the leveling, therefore the leakproofness of hydraulic medium 102 is great to the leveling effect of hydraulic foot 100, as a sealing mode of hydraulic medium 102 of this embodiment, the fixed part be connected with the movable adjusting part between the movablely sealed, can form sealed accommodation chamber between fixed part and the movable adjusting part like this, realize the sealed of hydraulic medium 102. Specifically, the hydraulic plate 101 of the present embodiment is connected with the sheath 103 in a static sealing manner, and the sheath 103 is connected with the adjusting foot 104 in a dynamic sealing manner.
As another sealing manner of the hydraulic medium 102 in this embodiment, the hydraulic foot 100 further includes a flexible accommodating body disposed in the accommodating chamber, the flexible accommodating body has a cavity, the hydraulic medium 102 is accommodated in the cavity, and the flexible accommodating body deforms along with the flow of the hydraulic medium 102 to drive the movable adjusting portion to move axially along the outside of the fixing portion for leveling.
Specifically, the hydraulic plate 101 is provided with a liquid flow channel 1012 inside, and the flexible accommodating body comprises an opening, and the opening of the flexible accommodating body is hermetically mounted on the hydraulic plate 101 and is communicated with the liquid flow channel 1012. In the embodiment, the hydraulic medium 102 is accommodated in the flexible accommodating body, and only the flexible accommodating body needs to be connected with the hydraulic plate 101 in a sealing manner, so that the installation among the hydraulic plate 101, the sheath 103 and the adjusting pin 104 is simplified.
Specifically, the sheath 103 of this embodiment includes a columnar body having a hollow cavity therein and running through axially, the adjusting foot 104 is a columnar structure having an open internal cavity therein, one end of the columnar body is sleeved in the adjusting foot 104, and the other end of the columnar structure is turned outwards to form a connecting plate attached and fixed to the hydraulic plate 101.
Preferably, the columnar body and the columnar structure are both cylindrical, and the diameter of the columnar body is smaller than that of the columnar structure.
As a preferred embodiment of this embodiment, the hydraulic foot 100 further includes a damping pad 105, and the damping pad 105 is disposed at an end of the movable adjustment portion contacting the supporting surface.
Preferably, the damping shim 105 is provided with damping lines for increasing friction.
The area of the damping gasket of the embodiment is increased, the damping force of the hydraulic bottom feet on the washing machine is effectively increased, the vibration of the household appliance (such as the washing machine) during working is effectively reduced, and the problems of displacement and the like of the household appliance (such as the washing machine) caused by vibration are effectively solved.
At least two hydraulic feet 100 of the embodiment are communicated through a communication device, and under the action of different pressures of the mutually communicated hydraulic feet 100, the hydraulic medium 102 flows between the hydraulic feet 100 until the hydraulic balance realizes leveling.
Specifically, the communication device comprises a hydraulic pipe 200 and a communication piece 300 with a liquid flow passage inside, wherein one end of the hydraulic pipe 200 is connected with the hydraulic foot 100, and the other end is connected with one end of the liquid flow passage of the communication piece 300;
the liquid flow channel has a liquid flow channel 302 or a plurality of liquid flow channels 302 communicated with each other to communicate two or more hydraulic feet 100.
The hydraulic plate 100 of this embodiment has a hydraulic nozzle 1013, the hydraulic nozzle 1013 communicates with a liquid flow channel 1012 in the hydraulic plate, the communicating member 300 has a connecting nozzle 303 communicating with the liquid flow channel 302 in the communicating member, and two ends of the hydraulic tube 200 of this embodiment are respectively connected with the hydraulic nozzle 303 and the connecting nozzle 303.
The communicating member 300 of the present embodiment is provided with a filling opening 301, and the filling opening 301 is communicated with a liquid flow channel 302 of the communicating member 300, so that after the hydraulic foot is filled with the hydraulic medium 102 through the filling opening 301, the filling opening 301 is hermetically installed through the sealing member. The filling mode of the hydraulic medium 102 in the embodiment is simple and convenient, and the filling mode of the hydraulic medium is greatly simplified.
The hydraulic plate 101 of the present embodiment is provided with the mounting hole 1011, the sheath 103 is axially movably sleeved in the adjusting foot 104, and then the hydraulic plate 101 and the sheath 103 are fixedly connected to realize the independent assembly of the hydraulic foot. The assembled hydraulic bottom feet are integrally installed on the bottom plate of the household appliance through the installation holes 1011, and the leveling device is installed on the household appliance.
The leveling device of the embodiment directly fixes the hydraulic plate 101 at the bottom of the household appliance, and fixedly connects the sheath 103 with the hydraulic plate 101, so that the hydraulic plate 101 is sandwiched by the bottom of the household appliance and the sheath 103, the strength of the fixed connection of the hydraulic plate 101 and the sheath 103 is unnecessary, the two are connected to form an integral footing, and the strength of the connection is irrelevant to the gravity of the household appliance and the supporting force of the adjusting foot 104. Therefore, the leveling device of the invention can realize the quick and reliable fixed connection of the hydraulic plate 101 and the sheath 103, reduce the requirement of the connection strength of the hydraulic plate and the sheath, and further reduce the necessary space and height required by the connection.
In conclusion, the leveling device of the embodiment is simpler in structure, simpler and more convenient to install and has better stability.
In addition, the structural design of the leveling device of the embodiment can also reduce the overall height of the leveling device, and the leveling device has a better shock absorption effect on household appliances, such as a washing machine.
Further, in this embodiment, the upper end of the sheath 103 is flanged outward to form a mounting plane, and the mounting plane is attached and fixedly connected to the bottom surface of the hydraulic plate 101.
In the embodiment, the installation plane of the sheath 103 is attached to the hydraulic plate 101, so that more pressure is transmitted to the installation plane and is dispersed, and the phenomenon that the pressure on the hydraulic plate 101 is too large is avoided, because the hydraulic plate 101 is internally provided with a liquid flow passage for flowing of a hydraulic medium, and the stability of the hydraulic plate 101 is the key for the stable leveling of the whole leveling device. The installation plane of the embodiment is formed by flanging the upper end of the sheath 103 outwards, so that the installation contact surface of the sheath 103 and the hydraulic plate 101 is increased, and the stability and the dispersity of force transmission from the hydraulic plate 101 to the installation plane of the sheath 103 are further facilitated.
In addition, the mounting plane of sheath 103 and hydraulic pressure board 101 are laminated fixed connection mutually, have avoided designing mounting structure on sheath 103 or hydraulic pressure board 101, reduce the overall structure of hydraulic pressure footing.
Further, the outline of the installation plane described in this embodiment matches the outline of the hydraulic plate 101, and the installation plane is attached and fixedly connected to the bottom surface of the hydraulic plate 101. Like this, the pressure that hydraulic plate 101 received can be better correspond transmit for the mounting surface of sheath 103 on, avoid hydraulic plate 101 local not caused by the mounting surface and take place stress concentration, more do benefit to the stable circulation of hydraulic medium in the hydraulic plate.
Preferably, the hydraulic plate 101 of the present embodiment has a profile similar to or identical to that of the installation plane. Therefore, the two parts can be corresponded, and the installation is simpler and more convenient.
As an installation manner of this embodiment, the sheath 103 and the hydraulic plate 101 described in this embodiment may also be fixedly connected by snapping, or adhering, or heat melting, or welding, and then fixedly installed at the bottom of the household appliance.
The hydraulic plate 101 of the present embodiment is made by plastic integral injection molding or metal die casting, and the sheath 103 is made by plastic integral injection molding or metal material die casting.
According to the stress characteristic of the hydraulic foot of the embodiment, preferably, the hydraulic plate 101 is made of plastic by integral injection molding, and the sheath 103 is made of metal by die casting. Because sheath 103 atress is great, consequently adopt metal die-casting in order to guarantee intensity, like this, the hydraulic pressure footing manufacturing cost of this embodiment is lower, and can guarantee its bulk strength.
F1 is exerted on hydraulic plate 101 through the bottom plate to domestic appliance's partial gravity, and the plane of hydraulic plate 101 can transmit the power of receiving to the mounting plane of sheath 103, and hydraulic plate 101 is inside to transmit adjustment foot 104 through hydraulic pressure, and adjustment foot 104 receives the holding power F2 of holding surface equally, and F1 is F2, and the power of adjustment foot 104 transmits the plane of hydraulic plate 101, and hydraulic plate 101 passes to domestic appliance's bottom plate again. The design makes the hydraulic plate 101 bear the pressure of the inner liquid flow passage, partial gravity of the washing machine and the supporting force of the adjusting foot 104, but all are transmitted to the mounting plane of the sheath 103, the adjusting foot 104 and the bottom plate of the household appliance.
As a preferred embodiment of this embodiment, the opening of the flexible container is fixedly mounted on the bottom surface of the hydraulic plate 101 by a press ring, and the press ring and the hydraulic plate 101 press the deformation of the opening together to seal the opening. This embodiment seals through clamping ring extrusion opening deformation, and is more simple and convenient, and sealed effectual.
Further, flexible container includes the minor diameter portion, and the tip of minor diameter portion turns up the opening that forms, the clamping ring cover establish on the minor diameter portion, the clamping ring seals with hydraulic pressure board 101 coextrusion opening deformation. This embodiment can be earlier with the thin-diameter part card cover at the clamping ring when carrying out the sealed installation of flexible container, only needs fixed mounting clamping ring, and at the in-process of fastening, the sealed installation can be realized to clamping ring extrusion opening.
As an implementation manner of this embodiment, the bottom surface of hydraulic pressure board 101 sets up the hydraulic pressure board recess, the opening of flexible container fills into in the hydraulic pressure board recess through clamping ring extrusion deformation and seals. By adopting the mode, the sealing can be realized by filling the opening part of the flexible accommodating body into the groove of the liquid pressing plate through extrusion deformation at the fastening pressing ring, the structure is simple, and the sealing is reliable and effective.
Preferably, the volume enclosed by the hydraulic plate groove and the pressure ring is smaller than the volume of the opening part of the flexible accommodating body. Thus, the opening part of the flexible accommodating body can be in close contact with the groove of the hydraulic plate, and the sealing performance is ensured.
The flexible containing body of this embodiment holds the body including holding the body, holds the body and is soft saccate structure, the telescopic ripple structure that has, the ripple structure sets up in adjusting foot 104, and along with hydraulic medium's flow flexible drive adjusting foot 104 carries out the leveling along the axial motion of sheath 103.
The hydraulic foot of this embodiment also includes the protection ring that is used for protecting flexible container, the clamping ring embedding is in the protection ring, has following technological effect like this:
1. the compression ring and the protection ring of the embodiment are installed in an embedded mode, the limiting effect can be achieved, the complex limiting structure is avoided being arranged, and the installation is simple and stable.
2. The hydraulic foot of this embodiment is under very big impact pressure (for example install the domestic appliance or the article that use this hydraulic foot when falling or lift and place suddenly), and the guard ring does not have any clearance with flexible container body and exerts the binding face, avoids the flexible container body consequently inflation fracture scheduling problem, has improved the reliability.
3. The compression ring and the protection ring of the embodiment are installed in an embedded mode, the installation height of the compression ring and the protection ring is reduced, the overall height of the hydraulic bottom feet is reduced, the compression ring and the protection ring are installed on a household appliance and have small influence on the overall gravity center of the household appliance, the support stability of the household appliance is better facilitated, and the shock absorption effect on shock (such as dehydration shock of a washing machine) in the working process of the household appliance is better.
As a preferred embodiment of this embodiment, one end of the protection ring is provided with a protection curved surface, and the protection curved surface is matched with the outer surface of the flexible accommodating body to prevent the flexible accommodating body from being damaged under pressure.
The other end of the protection ring of this embodiment sets up the embedded groove, the clamping ring embedding protection ring in the embedded groove.
In a preferred embodiment of this embodiment, the inner wall of the fitting groove of the guard ring is provided with a stopper protrusion, and the fixing member is provided with a stopper recess that fits the stopper protrusion. The limiting structure of the embodiment is designed according to the embedded installation of the pressure ring and the protection ring, the limiting movement is realized while the limiting structure is embedded and installed, and the limiting structure is simple in structure, stable and reliable.
The outer circumference of the protection ring is completely wrapped by the pressure ring, and only the protection ring is pressed into the adjusting pin 104, so that the reliability and the bonding stability are greatly improved. Therefore, after the protection ring of the embodiment is pressed into the adjusting foot 104, the protection ring can always stably and axially move in the adjusting foot 104, the movement is smooth and reliable, the whole hydraulic foot is more stable by the protection ring and the adjusting foot, and a certain amount of movement can exist between the protection ring and the pressing ring up and down.
Since the household appliances (such as a washing machine) generally generate vibration during operation, in order to ensure the operation stability of the household appliances, the hydraulic foot of the embodiment should reduce the overall height of the household appliances as much as possible to reduce the center of gravity of the household appliances. Therefore, this embodiment corresponds the spacing slider setting on hydraulic plate 101 and dodges the mouth, when satisfying the setting of direction stop gear, does not influence the axial motion of adjustment foot 104, can reduce the overall height of hydraulic pressure footing, improves its shock attenuation stability.
Example two
The embodiment also provides a household appliance with the leveling device according to any of the above embodiments, which comprises a housing, wherein a plurality of the hydraulic feet 100 are mounted at the bottom of the housing, and the hydraulic medium filled in the hydraulic feet 100 can circulate between the hydraulic feet 100 for leveling.
The embodiment of the invention takes a washing machine as an example, explains the principle and the method for realizing the automatic leveling of the washing machine by the leveling device, and after the washing machine is installed, the horizontal heights of different hydraulic feet are different due to uneven ground, and the hydraulic feet positioned in a pit on the ground are low. It can be seen that the high position hydraulic foot bears the weight of the washing machine first and bears a large weight, and the low position hydraulic foot bears a small weight due to the dummy leg or the bearing.
The adjusting foot of the hydraulic foot at the high position moves upwards under large pressure, the height of the whole foot is reduced to reduce the volume compression of the hollow cavity of the flexible accommodating body filled with the hydraulic medium, the hydraulic medium is forced to enter the throttling hole or the valve hole to enter the hydraulic foot at the low position through the high-pressure pipe, the hydraulic medium in the flexible accommodating body of the hydraulic foot at the low position is increased, and the flexible accommodating body expands to push the adjusting foot to extend.
When the hydraulic pressure of the feet at the high position is the same as that of the feet at the low position, the hydraulic medium does not flow through the high-pressure pipe any more, and the relative positions of the adjusting feet and the bottom plate of the washing machine do not change any more, so that the automatic adjustment of the washing machine is completed.
In the washing or spin-drying process of the washing machine, the hydraulic medium can flow slowly and self-level, so that the vibration noise of the washing machine is greatly reduced.
The hydraulic medium of this embodiment can select to adopt hydraulic oil, and mobility is good, and the composition is stable.
In addition, the leveling device of the above embodiments of the present invention can also be applied to household appliances such as refrigerators, freezers, indoor air conditioners, etc., besides washing machines.
It should be noted that: the above-described embodiments of the present invention may be implemented individually or in combination of a plurality of embodiments.
Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (13)
1. The leveling device of the household appliance is characterized by comprising a hydraulic foot, wherein the hydraulic foot comprises:
a fixed part;
the movable adjusting part is sleeved outside the fixed part and can axially move relative to the fixed part;
an accommodating chamber for accommodating a hydraulic medium is arranged between the fixed part and the movable adjusting part;
along with the change of the pressure, the hydraulic medium drives the movable adjusting part to axially move along the outer part of the fixed part to level;
the fixing part comprises a hydraulic plate and a sheath fixedly connected with the hydraulic plate, and a hollow cavity which is axially communicated is arranged in the sheath;
the outer flanging at the upper end of the sheath forms a mounting plane, and the mounting plane is attached to and fixedly connected with the bottom surface of the hydraulic plate;
the movable adjusting part is an adjusting foot, and an internal cavity with an open end is arranged in the adjusting foot;
the open end of the adjusting foot is sleeved outside the sheath and can axially move relative to the sheath, and the hollow cavity and the inner cavity jointly form an accommodating cavity;
the hydraulic foot also comprises a flexible accommodating body arranged in the accommodating cavity, a cavity is formed in the flexible accommodating body, the hydraulic medium is accommodated in the cavity, and the flexible accommodating body deforms along with the flow of the hydraulic medium to drive the movable adjusting part to axially move along the outer part of the fixing part for leveling;
the opening part of the flexible accommodating body is fixedly arranged on the bottom surface of the hydraulic plate through a pressing ring, and the pressing ring and the hydraulic plate jointly extrude the deformation of the opening part for sealing;
the hydraulic bottom foot also comprises a protection ring for protecting the flexible accommodating body, and the pressure ring is embedded in the protection ring;
the one end of protection ring sets up the protection curved surface, and the outside surface of the flexible body that holds of protection curved surface cooperation is in order to prevent that the flexible body that holds from compressing damaged, and the other end of protection ring sets up the embedded groove, the embedded groove of clamping ring embedding protection ring in.
2. The leveling device of the household appliance according to claim 1, wherein a limiting mechanism for preventing the adjusting foot from being separated from the sheath is arranged on the sheath and/or the adjusting foot.
3. The leveling device of the household appliance according to claim 2, wherein the limiting mechanism comprises a sheath stopper arranged on the outer peripheral wall of the sheath and an adjusting foot stopper arranged in the inner cavity of the adjusting foot; when the adjusting foot axially moves to the lowest end along the outer part of the sheath, the sheath stop abuts against the adjusting foot stop to prevent the adjusting foot from falling off.
4. The leveling device of the household appliance according to claim 2 or 3, wherein the outer peripheral wall of the sheath is provided with a limiting sliding block/a limiting sliding groove, the inner wall of the inner cavity of the adjusting foot is provided with a limiting sliding groove/a limiting sliding block, and the limiting sliding block axially slides along the limiting sliding groove to limit the relative rotation between the adjusting foot and the sheath.
5. The leveling device of the household appliance according to claim 4, wherein a limit stop for preventing the limit sliding block from coming off is arranged at the end part of the limit sliding groove.
6. The leveling device of the household appliance according to claim 1, wherein a liquid flow passage is provided inside the hydraulic plate, the flexible container comprises an opening, and the opening of the flexible container is hermetically mounted on the hydraulic plate and is communicated with the liquid flow passage.
7. The leveling device of the household appliance according to claim 1, wherein the sheath comprises a columnar body with a hollow chamber axially penetrating through the interior, the adjusting foot is a columnar structure with an open interior chamber, one end of the columnar body is sleeved in the adjusting foot, and the other end of the columnar structure is turned outwards to form a connecting plate which is attached and fixed with the hydraulic plate.
8. The leveling device of the household appliance according to claim 7, wherein the cylindrical body and the cylindrical structure are both cylindrical, and the diameter of the cylindrical body is smaller than that of the cylindrical structure.
9. The leveling device for household appliances according to claim 1, wherein the hydraulic foot further comprises a damping washer disposed at an end of the movable adjustment portion contacting the support surface.
10. The leveling device of the household appliance according to claim 9, wherein the damping pad is provided with damping lines for increasing friction.
11. The leveling device of the household appliance according to claim 1, wherein at least two hydraulic feet are communicated through a communication device, and under the action of different pressures, hydraulic media are communicated among the hydraulic feet until the hydraulic pressure is balanced to achieve leveling.
12. The leveling device of the household appliance according to claim 11, wherein the communication device comprises a hydraulic pipe and a communication member having a liquid flow passage therein, one end of the hydraulic pipe is connected with the hydraulic foot, and the other end is connected with one end of the liquid flow passage of the communication member;
the liquid flow channel is internally provided with a liquid flow channel or a plurality of liquid flow channels which are mutually communicated so as to communicate two or more than two hydraulic feet.
13. A washing machine having a leveling device as claimed in any one of claims 1 to 12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710203628.5A CN108662359B (en) | 2017-03-30 | 2017-03-30 | Leveling device of household appliance and washing machine with leveling device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710203628.5A CN108662359B (en) | 2017-03-30 | 2017-03-30 | Leveling device of household appliance and washing machine with leveling device |
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| CN108662359B true CN108662359B (en) | 2021-09-07 |
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| CN201710203628.5A Active CN108662359B (en) | 2017-03-30 | 2017-03-30 | Leveling device of household appliance and washing machine with leveling device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010194028A (en) * | 2009-02-24 | 2010-09-09 | Panasonic Corp | Washing machine |
| CN105755750A (en) * | 2016-04-13 | 2016-07-13 | 青岛海尔洗衣机有限公司 | Washing machine foot with automatic levelling function and washing machine |
| CN105755757A (en) * | 2016-04-13 | 2016-07-13 | 青岛海尔洗衣机有限公司 | Washing machine feet with automatic levelling function and washing machine |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2536822C (en) * | 2005-02-17 | 2012-04-10 | Steeve Cournoyer | Device for adjusting the attitude of an object |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010194028A (en) * | 2009-02-24 | 2010-09-09 | Panasonic Corp | Washing machine |
| CN105755750A (en) * | 2016-04-13 | 2016-07-13 | 青岛海尔洗衣机有限公司 | Washing machine foot with automatic levelling function and washing machine |
| CN105755757A (en) * | 2016-04-13 | 2016-07-13 | 青岛海尔洗衣机有限公司 | Washing machine feet with automatic levelling function and washing machine |
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Effective date of registration: 20210806 Address after: 266400 Haier Industrial Park, qianwangang Road, Jiaonan City, Qingdao City, Shandong Province Applicant after: QINGDAO JIAONAN HAIER WASHING MACHINE Co.,Ltd. Applicant after: QINGDAO HAIER SMART TECHNOLOGY R&D Co.,Ltd. Applicant after: Haier Smart Home Co., Ltd. Address before: 266101 Haier Industrial Park, No.1 Haier Road, Laoshan District, Qingdao City, Shandong Province Applicant before: QINGDAO HAIER WASHING MACHINE Co.,Ltd. Applicant before: QINGDAO HAIER SMART TECHNOLOGY R&D Co.,Ltd. |
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Address after: 266400 Haier Industrial Park, qianwangang Road, Jiaonan City, Qingdao City, Shandong Province Patentee after: Qingdao Haier Cleaning and Protection Electrical Appliance Co.,Ltd. Country or region after: China Patentee after: QINGDAO HAIER SMART TECHNOLOGY R&D Co.,Ltd. Patentee after: Haier Smart Home Co., Ltd. Address before: 266400 Haier Industrial Park, qianwangang Road, Jiaonan City, Qingdao City, Shandong Province Patentee before: QINGDAO JIAONAN HAIER WASHING MACHINE Co.,Ltd. Country or region before: China Patentee before: QINGDAO HAIER SMART TECHNOLOGY R&D Co.,Ltd. Patentee before: Haier Smart Home Co., Ltd. |