CN112342743B - Vibration damper of washing machine and washing machine - Google Patents
Vibration damper of washing machine and washing machine Download PDFInfo
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- CN112342743B CN112342743B CN201910734546.2A CN201910734546A CN112342743B CN 112342743 B CN112342743 B CN 112342743B CN 201910734546 A CN201910734546 A CN 201910734546A CN 112342743 B CN112342743 B CN 112342743B
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- washing machine
- vibration damper
- supporting seat
- upper support
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- 238000005406 washing Methods 0.000 title claims abstract description 53
- 238000013016 damping Methods 0.000 claims abstract description 174
- 238000001125 extrusion Methods 0.000 claims abstract description 21
- 230000003139 buffering effect Effects 0.000 claims abstract description 20
- 239000000872 buffer Substances 0.000 claims description 60
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 20
- 238000005192 partition Methods 0.000 claims description 18
- 238000007789 sealing Methods 0.000 claims description 11
- 230000000903 blocking effect Effects 0.000 claims description 8
- 230000002093 peripheral effect Effects 0.000 claims 3
- 230000008859 change Effects 0.000 abstract description 7
- 230000000694 effects Effects 0.000 description 10
- 230000001603 reducing effect Effects 0.000 description 8
- 230000009467 reduction Effects 0.000 description 8
- 230000006378 damage Effects 0.000 description 7
- 238000000926 separation method Methods 0.000 description 6
- 230000013011 mating Effects 0.000 description 5
- 230000033001 locomotion Effects 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 4
- 230000002035 prolonged effect Effects 0.000 description 4
- 230000003014 reinforcing effect Effects 0.000 description 4
- 239000000725 suspension Substances 0.000 description 4
- 230000002159 abnormal effect Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 3
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 239000004519 grease Substances 0.000 description 3
- 230000001050 lubricating effect Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000013013 elastic material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000638 solvent extraction Methods 0.000 description 1
Classifications
-
- 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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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Vibration Prevention Devices (AREA)
- Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
Abstract
The invention discloses a vibration damper of a washing machine and the washing machine, wherein the vibration damper comprises a hanging rod and a pop-up assembly sleeved outside the hanging rod, the pop-up assembly comprises a supporting seat, a pop-up, a damping structure and a buffering structure, the damping structure is arranged between the pop-up and the supporting seat and is used for at least partially converting extrusion of the pop-up and the supporting seat into variable damping force for the hanging rod, and the buffering structure is supported between the pop-up and the supporting seat and is used for buffering the extrusion force born by the damping structure. The damping structure is used for buffering the pressure applied to the damping structure by the supporting seat and the upper bracket according to the load and the eccentric load in the washing machine, the damping force of the damping structure to the suspender is changed according to the received pressure, and the damping change is stable.
Description
Technical Field
The invention relates to the field of washing equipment, in particular to a vibration damper of a washing machine and the washing machine.
Background
With the development of technology, the existing washing machines are divided into pulsator washing machines and drum washing machines, wherein the pulsator washing machines comprise: a housing forming an external appearance of the washing machine; an outer tub suspended and fixed by a supporting member and used for containing washing water is arranged in the shell; an inner tub rotatably installed inside the outer tub and provided with a pulsator at a bottom thereof; a driving motor installed at the lower side of the outer tub for generating driving force of the pulsator and the inner tub; a power transmission device for selectively providing a driving force of the driving motor to the pulsator and the inner tub; and a drain device installed at a lower portion of the outer tub and for draining washing water contained in the outer tub to the outside, the outer tub being suspended from the housing by a damping device.
The patent application number 201511028796.2 discloses a variable damping vibration damper of a washing machine and the washing machine, wherein the variable damping vibration damper comprises a suspender, an upper support, a sleeve and a pressure buffer mechanism arranged in the sleeve, the upper end of the sleeve is provided with a bracket, the suspender penetrates through the upper support and the bracket and extends into the sleeve to be connected with the pressure buffer mechanism, at least one damping sleeve sleeved on the suspender is arranged between the upper support and the pressure buffer mechanism, and the damping sleeve provides variable damping force for the suspender. However, the damping sleeve is directly compressed by the upper support and the pressure buffer mechanism, so that the damage to the damping sleeve is large, and the damping sleeve cannot effectively play a role in vibration reduction and noise reduction for a long time.
The present invention has been made in view of this.
Disclosure of Invention
The invention aims to solve the technical problems of overcoming the defects of the prior art and providing a vibration damper with stable damping change and long service life and a washing machine.
In order to solve the technical problems, the invention adopts the basic conception of the technical scheme that: the vibration damper comprises a suspender and an upper bracket assembly sleeved outside the suspender, wherein the upper bracket assembly comprises a supporting seat, an upper bracket, a damping structure and a buffer structure, the damping structure is arranged between the upper bracket and the supporting seat and is used for converting extrusion force of the upper bracket and the supporting seat into variable damping force for the suspender at least partially, so that shaking and swinging of an outer barrel are effectively reduced, and good vibration damping and noise reducing effects are achieved; the buffer structure is supported between the upper support and the supporting seat and is used for buffering extrusion force born by the damping structure. The direct damage of the extrusion of the supporting seat and the upper support to the damping structure is slowed down, and the service life of the damping structure is prolonged.
Further, the end of the support base opposite to the upper bracket comprises a concave cavity with an opening facing the upper bracket, the upper bracket is at least partially and movably arranged in the concave cavity, the damping structure is arranged between the concave cavity and the upper bracket, the damping structure is changed to generate variable damping force on the hanging rod according to extrusion force of the upper bracket and the concave cavity, and the buffering structure is supported between the upper bracket and the concave cavity. The direct damage of the extrusion of the concave cavity and the upper bracket to the damping structure is slowed down, and the service life of the damping structure is prolonged.
Further, a partition part for partitioning the concave cavity into a first cavity and a second cavity is further arranged in the concave cavity of the supporting seat, the damping structure is arranged in the first cavity, and the buffering structure is arranged in the second cavity. The damping structure and the buffer structure are arranged in different chambers and are not in direct contact with each other, so that the damage to each other caused by friction force and other pressure in other directions during the direct contact is prevented.
Preferably, the first chamber is coaxially disposed within the second chamber. The damping structure and the buffer structure are pressed basically from the same direction, namely mainly from the axial direction, and the stress directions are the same, so that the buffer effect of the buffer structure can be more directly and effectively achieved.
Preferably, the partition is an annular partition integrally formed in the supporting seat, the forming is simple and convenient, the cost is saved, the buffer structure is sleeved outside the partition, the buffer spring is prevented from being twisted and clamped with the friction plate when being pressed, and the buffer spring is prevented from being too much twisted to restore the original shape when being pressed.
Further, a limiting part is further arranged in the first cavity, one end of the damping structure in the axial direction abuts against the limiting part, the damping structure is prevented from being separated from the first cavity from the direction, the other end of the damping structure protrudes out of the separating part and abuts against the upper support, and a space for pressed deformation is provided for the damping structure.
Further, the damping structure comprises a damping ring in interference fit with the suspender, and the buffer structure comprises a buffer spring sleeved on the outer side of the damping ring.
Preferably, the damping ring is formed of a material having elasticity.
Further, the upper support is provided with a protruding part extending into the concave cavity of the supporting seat, and the end surface of the protruding part extending into the concave cavity is abutted against the damping ring to apply pressure to the damping ring. The inner ring of the end surface of the protruding part extending into the concave cavity is abutted against the damping ring, and the outer ring is abutted against the separation part after the upper bracket applies pressure to the supporting seat, so that pressure is applied to the supporting seat. The upper support, the supporting seat and the suspender are coaxially arranged.
Preferably, one end of the buffer spring in the axial direction is sleeved outside the protruding part, and the other end is sleeved outside the separation part; prevent that the bulge from stretching into the in-process of recess of supporting seat with buffer spring takes place the dislocation, leads to buffer spring unable realization buffer pressure effect.
Preferably, the outer side wall of the protruding portion is provided with a guide rib for guiding the buffer spring. The guide rib also strengthens the strength of the projection.
Further, the top of supporting seat includes fixed part, pop up on be equipped with the cooperation portion that fixed part supports each other, fixed part with be equipped with the liner between the cooperation portion, slow down the action of fixed part and cooperation portion, the damping is avoided producing noise, abnormal sound.
Preferably, the fixing part protrudes out of the periphery of the supporting seat, the matching part protrudes out of the periphery of the upper support, and the mutual abutting area of the fixing part and the matching part is increased.
Further, the vibration damper further comprises a vibration damper spring and a base, wherein one end of the suspension rod penetrates through the upper support assembly and the vibration damper spring to be connected with the base, and the vibration damper spring is abutted between the base and the upper support assembly. The upper support component is connected with an outer barrel of the washing machine or a box body of the washing machine, and the other end of the suspender is connected with the box body of the washing machine or the outer barrel of the washing machine.
Preferably, the damping spring is abutted between the fixing part of the supporting seat and the base.
Preferably, the outer edge of the fixing part is provided with a limiting part for preventing the damping spring from being separated, and the limiting part is a protrusion extending from the edge of the fixing part to the direction of the base.
Further, the vibration damper further comprises a waterproof cap sleeved outside the suspender, and the upper bracket is arranged between the waterproof cap and the supporting seat; prevent water from entering the supporting seat from the upper support, reduce the damping effect of the damping structure.
Preferably, the waterproof cap comprises a sealing sleeve sleeved on the suspender and a water retaining part extending from the sealing sleeve to the periphery, and one surface of the water retaining part opposite to the upper support is a water guide surface inclined from the center to the periphery.
The invention also provides a washing machine, which comprises the vibration damper.
By adopting the technical scheme, compared with the prior art, the invention has the following beneficial effects.
1. The damping structure is extruded by the upper support and the supporting seat, the damping force generated by the damping structure on the suspender is changed according to different extrusion forces, so that shaking and swinging of the outer barrel are effectively reduced, and good vibration reduction and noise reduction effects are achieved.
2. The damping structure buffers the pressure applied to the damping structure by the supporting seat and the upper bracket according to the load and the eccentric load in the washing machine, the damping structure changes the damping force of the damping structure to the suspender according to the received pressure, and the damping change is stable.
3. Set up buffer structure, cushion damping structure pressurized, slowed down the extrusion of supporting seat and pop-up and to damping structure's direct injury, prolonged damping structure's life.
The following describes the embodiments of the present invention in further detail with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention. It is evident that the drawings in the following description are only examples, from which other drawings can be obtained by a person skilled in the art without the inventive effort. In the drawings:
FIG. 1 is an exploded view of the installation of the vibration damping device of the present invention;
FIG. 2 is a cross-sectional view of a vibration damping device of the present invention;
fig. 3 is an enlarged view of a portion a of fig. 2;
FIG. 4 is a schematic view of a first support base of the present invention;
FIG. 5 is a second schematic view of the support base of the present invention;
FIG. 6 is a schematic diagram of a pop-up according to the present invention;
FIG. 7 is a schematic view of one embodiment of the waterproof cap of the present invention;
FIG. 8 is a schematic diagram of a second embodiment of the waterproof cap of the present invention;
FIG. 9 is a schematic view of another embodiment of the waterproof cap of the present invention;
in the figure: 1. the upper bracket assembly, 11, the upper bracket, 111, the protruding part, 112, the matching part, 113, the connecting part, 12, the supporting seat, 121, the separating part, 122, the first chamber, 123, the second chamber, 124, the fixing part, 125, the limiting part, 126 and the guide rib; 13. damping structure, 14, buffer structure, 15, liner; 2. a boom; 3. a base, 31, reinforcing ribs; 4. a damping spring; 5. a vibration damping pad; 6. a waterproof cap 61, a sealing sleeve 62 and a water retaining part; 7. a boom seat.
It should be noted that these drawings and the written description are not intended to limit the scope of the inventive concept in any way, but to illustrate the inventive concept to those skilled in the art by referring to the specific embodiments.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions in the embodiments will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present invention, and the following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted", "connected" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
The following describes the embodiments of the present invention further with reference to the drawings.
As shown in fig. 1 to 5, the invention discloses a vibration damper of a washing machine, which comprises a hanging rod 2 and a pop-up assembly 1 sleeved outside the hanging rod 2, wherein the pop-up assembly 1 comprises a supporting seat 12, a pop-up 11, a damping structure 13 and a buffer structure 14, the damping structure 13 is arranged between the supporting seat 12 and the pop-up 11 and is used for at least partially converting the extrusion force of the pop-up 11 and the supporting seat 12 into a variable damping force for the hanging rod 2, and the buffer structure 14 is supported between the pop-up 11 and the supporting seat 12 and is used for buffering the extrusion force born by the damping structure 13. The boom 2 passes through the supporting seat 12, the upper support 11 and the damping structure 13 in sequence, the damping structure 13 is clamped between the upper support 11 and the supporting seat 12, is extruded by the upper support 11 and the supporting seat 12, compresses or releases the damping structure 13 according to different extrusion forces, the damping structure 13 deforms, the damping structure 13 supplies the boom 2 passes through holes of which the sizes change, the damping force generated by the boom 2 is increased or decreased along with the deformation of the damping structure 13, the shaking and swinging of an outer barrel are effectively reduced, and good vibration and noise reduction effects are achieved. Lubricating grease is smeared between the suspender 2 and the upper bracket assembly 1 to reduce noise and eliminate noise. The damping structure is used for buffering the compression size of the damping structure 13, buffering the pressure applied to the damping structure 13 by the supporting seat 12 and the upper bracket 11 according to the load size and the eccentric size in the washing machine, and the damping structure 13 is used for buffering the damping force of the damping structure to the suspender 2 according to the received pressure size, so that the damping change is stable. The buffer structure 14 is arranged to buffer the damping structure 13 under pressure, so that the direct damage of the extrusion of the supporting seat 12 and the upper bracket 11 to the damping structure 13 is slowed down, and the service life of the damping structure is prolonged.
Example 1
In this embodiment, the damping structure 13 is axially clamped between the supporting seat 12 and the upper support 11, at least part of the damping structure is circumferentially clamped between the supporting seat and the suspension rod, the damping structure 13 is deformed by the extrusion force in the axial direction, and is circumferentially extruded by the supporting seat to enhance the damping force of the damping structure on the suspension rod, the buffer structure 14 is abutted between the upper support 11 and the supporting seat 12, and plays a role in buffering and buffering the pressure applied to the damping structure 13 by the supporting seat 12 and the upper support 11, and also plays a role in supporting the supporting between the supporting seat 12 and the upper support 11.
In a preferred embodiment, the end of the supporting seat 12 opposite to the upper bracket 11 includes a cavity with an opening facing the upper bracket 11, the upper bracket 11 is at least partially movably disposed in the cavity, the damping structure 13 is disposed between the cavity and the upper bracket 11, and the damping structure 13 generates a variable damping force on the boom 2 according to the extrusion force of the upper bracket 11 and the cavity, so as to effectively reduce the shake and swing of the outer tub, and achieve good vibration and noise reduction effects; the buffer structure 14 is supported between the upper bracket 11 and the concave cavity, and buffers the pressure applied to the damping structure 13 by the concave cavity and the upper bracket 11, and the damping structure 13 buffers the damping force of the damping structure to the boom 2 according to the received pressure.
In a further embodiment, the damping structure 13 includes a damping ring in interference fit with the boom 2, and lubricating grease is smeared between the damping ring and the boom 2 to reduce noise and eliminate noise, the damping ring generates damping force on the boom 2 when moving, slows down the motion of the boom 2, changes the damping force on the boom 2 according to the extrusion force of the upper bracket 11 and the concave cavity, effectively reduces the shake and swing of the outer barrel, and has good vibration reduction and noise reduction effects; the damping ring is in interference fit with the suspender 2 so as to ensure that the damping ring always has damping effect on the suspender 2; the buffer structure 14 comprises a buffer spring sleeved on the outer side of the damping ring, so that the pressure born by the damping ring is buffered conveniently, and the damping force of the damping ring to the boom 2 is buffered; the damping ring is sleeved outside the damping ring to prevent the damping ring from expanding outwards, and the damping force on the suspender 2 is reduced. Preferably, the damping ring is formed by elastic materials, when the damping ring is extruded, the damping force on the suspender 2 is increased, when the extrusion force is eliminated or reduced, the damping ring is restored under the action of self elasticity, and the damping force on the suspender 2 is reduced; in the embodiment, the spring coefficient of the buffer spring is larger, the pressure is larger when the washing machine washes, the upper bracket 11 and the supporting seat 12 squeeze the buffer spring and the damping ring, and the buffer spring buffers the squeezing force to change the damping force of the damping ring; when the washing machine is dehydrated, the buffer spring buffers the pressure applied to the damping ring by the supporting seat 12 and the upper bracket 11 according to the size of the load and the eccentric size, and buffers the damping force of the damping ring. The buffer spring also plays a role in buffering the pressure and supporting.
Example two
In this embodiment, a partition 121 that divides the cavity into a first chamber 122 and a second chamber 123 is further disposed in the cavity of the supporting seat 12, the damping structure 13 is disposed in the first chamber 122, and the buffer structure 14 is disposed in the second chamber 123; the damping structure 13 and the buffer structure 14 are disposed in different chambers, and are not in direct contact with each other, preventing damage to each other by friction and other directional pressure upon direct contact. Preferably, the first chamber 122 is coaxially disposed inside the second chamber 123, so that the compression of the damping structure 13 and the buffer structure 14 is substantially in the same direction, that is, mainly from the axial direction, and the stress direction is the same, so that the buffer effect exerted by the buffer structure 14 can be more directly and effectively exerted.
In this embodiment, the partition 121 is an annular partition integrally formed in the supporting seat 12, which is simple and convenient to form and saves cost; the buffer spring is sleeved outside the partition part 121, so that the buffer spring is prevented from being distorted to clamp the friction plate when being pressed, and the buffer spring is prevented from being too distorted to restore the original shape when being pressed. Specifically, the inner side wall of the concave cavity of the supporting seat 12 is provided with a first platform protruding inwards, and the annular partition plate extends from the periphery of the first platform along the axial direction of the supporting seat 12 to the direction of the upper support 11. The periphery of the supporting seat 12 comprises a reducing part, the diameter of the periphery of one end of the supporting seat 12 far away from the upper bracket 11 is smaller than that of one end close to the upper bracket 11, the outer Zhou Yuanhua of the reducing part between the two is in transition, and the position of the first platform, which is relatively larger than the diameter of the reducing part, is arranged on the inner side wall of the supporting seat 12.
Preferably, a limiting portion 125 is further disposed in the first chamber 122, and one end of the damping structure 13 in the axial direction abuts against the limiting portion 125 to prevent the damping structure 13 from being separated from the first chamber 122 in the axial direction; the other end protrudes from the separation part 121 to abut against the upper support 11, the distance between the other end protruding from the separation part 121 is the maximum distance that the damping structure 13 can be reduced by the extrusion force of the supporting seat 12 and the upper support 11, the separation part 121 separates the damping structure 13 and the buffering structure 14 in two chambers, and a barrier is also established for the movement of the upper support 11, when the upper support 11 is forced to extend into the separation part 121, the damping structure is extruded to reach the maximum damping force, and the upper support 11 and the supporting seat 12 abut against each other and press each other. Specifically, the inner side wall of the concave cavity of the supporting seat 12 is provided with a second platform protruding inwards, and the second platform protrudes inwards along the outer circumference of the annular partition plate. The periphery of the supporting seat 12 comprises a reducing part, the diameter of the periphery of one end of the supporting seat 12 far away from the upper bracket 11 is smaller than that of one end close to the upper bracket 11, the outer Zhou Yuanhua of the reducing part between the two is in transition, and the position of the second platform, which is smaller than the diameter of the reducing part, is arranged on the inner side wall of the supporting seat 12.
Example III
In this embodiment, the upper bracket 11 is provided with a protruding portion 111 extending into the concave cavity of the supporting seat 12, and an end surface of the protruding portion 111 extending into the concave cavity abuts against the damping ring to apply pressure to the damping ring; the inner ring of the end surface of the protruding part 111 extending into the concave cavity abuts against the damping ring, and the outer ring abuts against the partition part 121 after the upper bracket 11 presses the supporting seat 12, so as to apply pressure to the supporting seat 12. The upper bracket 11 is arranged coaxially with the support base 12 and the boom 2.
Preferably, one end of the buffer spring in the axial direction is sleeved outside the protruding portion 111, and the other end is sleeved outside the partition portion 121; the protrusion 111 is prevented from being dislocated with the buffer spring during the process of extending into the concave cavity of the supporting seat 12, so that the buffer spring cannot realize the action of the buffer force.
Preferably, the outer side wall of the protrusion 111 is provided with a guide rib 126 for guiding the buffer spring, and the guide rib 126 also reinforces the strength of the protrusion 111. The guide ribs 126 extend in the axial direction of the projection 111 and are uniformly spaced apart in the circumferential direction.
Example IV
In this embodiment, the top end of the supporting seat 12 includes a fixing portion 124, the upper bracket 11 is provided with a mating portion 112 that abuts against the fixing portion 124, the fixing portion 124 is configured to bear the pressure applied by the upper bracket 11 to the supporting seat 12 and apply a reaction force to the upper bracket 11 through the fixing portion 124, and the mating portion 112 is configured to bear the pressure applied by the supporting seat 12 to the upper bracket 11 and apply a reaction force to the supporting seat 12 through the mating portion 112. A gasket 15 is disposed between the fixing portion 124 and the matching portion 112 to slow down the motion of the two, dampen vibration, and avoid noise and abnormal sound. The pad 15 is made of an elastic material. Preferably, the fixing portion 124 protrudes from the outer periphery of the supporting seat 12, and the mating portion 112 protrudes from the outer periphery of the upper bracket 11, so as to increase the abutting area of the fixing portion 124 and the mating portion 112.
Further, the vibration damper further comprises a vibration damper spring 4 and a base 3, one end of the suspension rod 2 penetrates through the upper bracket component 1 and the vibration damper spring 4 to be connected with the base 3, and the vibration damper spring 4 is abutted between the base 3 and the upper bracket component 1; the upper support assembly 1 is connected with an outer barrel of the washing machine or a box body of the washing machine, and the other end of the suspender 2 is connected with the box body of the washing machine or the outer barrel of the washing machine. Preferably, the damping spring 4 is abutted between the fixing portion 124 of the supporting base 12 and the base 3. Preferably, a limiting portion 125 for preventing the damping spring 4 from being separated is provided at an outer edge of the fixing portion 124, and the limiting portion 125 is a protrusion extending from the edge of the fixing portion 124 toward the base 3.
Example five
In this embodiment, the vibration damping device further includes a waterproof cap 6 sleeved outside the boom 2, and the upper bracket 11 is disposed between the waterproof cap 6 and the supporting seat 12; preventing water from entering the supporting seat 12 from the upper bracket 11, and reducing the damping effect of the damping structure 13.
In a preferred embodiment, the waterproof cap 6 includes a sealing sleeve 61 fitted over the boom 2 and a water blocking portion 62 extending from the sealing sleeve 61 to the outer periphery, and a surface of the water blocking portion 62 opposite to the upper bracket 11 is a water guiding surface inclined from the center to the outer periphery. The sealing sleeve 61 prevents water from entering the upper bracket assembly along the hanger rod 2, and the water blocking part 62 prevents water from entering the upper bracket assembly from the periphery of the upper bracket assembly. In a preferred embodiment, the sealing sleeve 61 and the water blocking part 62 are matched to form an umbrella-shaped structure; in another preferred embodiment, the sealing sleeve 61 and the water blocking portion 62 cooperate to form an umbrella structure with the sealing sleeve disposed outside the water blocking portion.
Example six
In this embodiment, disclose a washing machine, including box, outer bucket and vibration damper, vibration damper includes jib 2, pop-up subassembly 1, damping spring 4 and base 3, jib 2 one end is passed and is pop-up subassembly 1 and damping spring 4 is connected with base 3, pop-up subassembly 1 is connected with the outer bucket of washing machine, the jib 2 other end is connected with the washing machine box, and damping spring 4 compresses or stretches to realize the damping in washing machine washing or dehydration process.
The upper bracket assembly 1 comprises a supporting seat 12, an upper bracket 11 and a damping structure 13, wherein the damping structure 13 is arranged between the supporting seat 12 and the upper bracket 11, and the damping force generated by the upper bracket 11 and the supporting seat 12 on the boom 2 is changed under the extrusion of the upper bracket 11 and the supporting seat 12. The upper bracket assembly 1 further comprises a buffer structure 14 for buffering the compression of the damping structure 13; preferably, the buffer structure 14 is abutted between the upper bracket 11 and the supporting seat 12. The upper support 11 comprises a matching part 112 which is mutually abutted against the supporting seat 12, one end of the matching part 112 is provided with a protruding part 111 which stretches into a concave cavity of the supporting seat 12, the other end of the matching part is provided with a protruding connecting part 113 which is connected with the outer barrel, the connecting part 113 is of a frustum-shaped structure with a through hole for the hanging rod 2 to pass through, the connection with the outer barrel is facilitated, and lubricating grease is smeared between the upper support 11 and the hanging rod 2. A vibration damping pad 5 is also arranged between the upper support 11 and the outer barrel, so that vibration damping between the upper support 11 and the outer barrel is realized, and noise and abnormal sound generated by mutual movement between the upper support 11 and the outer barrel are avoided.
The base 3 comprises a convex column which is arranged against the bottom plate of the damping spring 4 and the convex bottom plate, the damping spring 4 is sleeved outside the convex column, the periphery of the convex column is provided with a reinforcing rib 31 for reinforcing the strength of the convex column, the reinforcing rib 31 is arranged on the periphery of the convex column along the axial protrusion of the convex column at uniform intervals, and the damping spring 4 is sleeved outside the convex column and has a guiding function. The base 3 is internally provided with a through hole for the suspender 2 to pass through, and the end part of the suspender 2 is provided with a disc for preventing the suspender 2 from being separated from the base 3.
The vibration damper further comprises a boom seat 7, and the boom 2 is connected with the box body of the washing machine through the boom seat 7.
The foregoing description is only a preferred embodiment of the present invention, and the present invention is not limited to the above-mentioned embodiment, but is not limited to the above-mentioned embodiment, and any simple modification, equivalent change and modification made by the technical matter of the present invention can be further combined or replaced by the equivalent embodiment without departing from the scope of the technical solution of the present invention.
Claims (12)
1. The damping device of the washing machine is characterized by comprising a hanging rod and an upper support assembly sleeved outside the hanging rod, wherein the upper support assembly comprises a supporting seat, an upper support, a damping structure and a buffering structure, the damping structure is arranged between the upper support and the supporting seat and is used for converting extrusion force of the upper support and the supporting seat into variable damping force for the hanging rod at least partially, and the buffering structure is supported between the upper support and the supporting seat and is used for buffering extrusion force born by the damping structure;
the end, opposite to the upper support, of the supporting seat comprises a concave cavity with an opening facing the upper support, the upper support is at least partially movably arranged in the concave cavity, the damping structure is arranged between the concave cavity and the upper support, and the buffering structure is supported between the upper support and the concave cavity;
the inner side wall of the concave cavity is provided with a first platform protruding inwards, and the annular partition plate extends from the periphery of the first platform to the upper supporting direction along the axial direction of the supporting seat;
the damping structure is embedded into the inner peripheral side wall of the annular partition plate and is positioned in the first cavity; the buffer structure is sleeved on the peripheral side wall of the annular partition plate and is positioned in the second cavity;
the upper support is provided with a protruding part extending into the concave cavity, one end of the buffer structure in the axial direction is sleeved outside the protruding part, and the other end of the buffer structure is sleeved on the peripheral side wall of the annular partition plate; the inner ring of the end face of the protruding part extending into the concave cavity is abutted against the damping structure, and the outer ring of the end face is abutted against the annular partition plate after the upper support presses the supporting seat.
2. The vibration damper of a washing machine according to claim 1, wherein a limiting portion is further provided in the first chamber, one end of the damping structure in the axial direction abuts against the limiting portion, and the other end protrudes from the partition portion to abut against the upper bracket.
3. A vibration damper of a washing machine according to claim 1 or 2, wherein the damping structure comprises a damping ring in interference fit with the boom, and the damping structure comprises a damping spring sleeved outside the damping ring.
4. A vibration damper of a washing machine according to claim 3,
the outer side wall of the protruding part is provided with a guide rib for guiding the buffer spring.
5. A vibration damper of a washing machine according to claim 3, wherein the top end of the supporting base includes a fixing portion, the upper bracket is provided with a fitting portion abutting against the fixing portion, and a gasket is provided between the fixing portion and the fitting portion.
6. The vibration damper of a washing machine as claimed in claim 5, wherein the fixing portion is protruded from an outer circumference of the supporting base, and the fitting portion is protruded from an outer circumference of the upper bracket.
7. The vibration damper of a washing machine as claimed in claim 5, further comprising a vibration damper spring and a base, wherein one end of the hanger rod is connected to the base through the upper bracket assembly and the vibration damper spring, and the vibration damper spring is abutted between the base and the upper bracket assembly.
8. The vibration damper of a washing machine as claimed in claim 7, wherein the vibration damper spring is abutted between the fixing portion and the base.
9. The vibration damper of a washing machine as claimed in claim 8, wherein the outer edge of the fixing portion is provided with a stopper portion for preventing the vibration damper spring from being separated.
10. The vibration damper of a washing machine according to claim 1, further comprising a waterproof cap sleeved outside the hanger rod, wherein the upper bracket is disposed between the waterproof cap and the support base.
11. The vibration damper of a washing machine as claimed in claim 10, wherein the waterproof cap includes a sealing sleeve fitted over the hanger rod and a water blocking portion extending from the sealing sleeve to the outer circumference, and a surface of the water blocking portion opposite to the upper bracket is a water guiding surface inclined from the center to the outer circumference.
12. A washing machine comprising a vibration damping device of a washing machine as claimed in any one of claims 1-11.
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| CN201910734546.2A CN112342743B (en) | 2019-08-09 | 2019-08-09 | Vibration damper of washing machine and washing machine |
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| CN201910734546.2A CN112342743B (en) | 2019-08-09 | 2019-08-09 | Vibration damper of washing machine and washing machine |
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| CN112342743A (en) | 2021-02-09 |
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