CN111334983B - Damping piece and washing machine - Google Patents
Damping piece and washing machine Download PDFInfo
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- CN111334983B CN111334983B CN201811547378.8A CN201811547378A CN111334983B CN 111334983 B CN111334983 B CN 111334983B CN 201811547378 A CN201811547378 A CN 201811547378A CN 111334983 B CN111334983 B CN 111334983B
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- shock
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- 238000013016 damping Methods 0.000 title claims abstract description 290
- 238000005406 washing Methods 0.000 title claims abstract description 72
- 230000035939 shock Effects 0.000 claims abstract description 192
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 59
- 238000010521 absorption reaction Methods 0.000 claims abstract description 35
- 230000005489 elastic deformation Effects 0.000 claims description 7
- 230000002093 peripheral effect Effects 0.000 claims description 5
- 238000006073 displacement reaction Methods 0.000 description 22
- 238000000034 method Methods 0.000 description 21
- 230000008569 process Effects 0.000 description 19
- 230000000670 limiting effect Effects 0.000 description 12
- 230000003139 buffering effect Effects 0.000 description 6
- 239000007788 liquid Substances 0.000 description 6
- 238000003780 insertion Methods 0.000 description 5
- 230000037431 insertion Effects 0.000 description 5
- 238000005299 abrasion Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 4
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 3
- 235000017491 Bambusa tulda Nutrition 0.000 description 3
- 241001330002 Bambuseae Species 0.000 description 3
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 3
- 230000009471 action Effects 0.000 description 3
- 239000011425 bamboo Substances 0.000 description 3
- 230000018044 dehydration Effects 0.000 description 3
- 238000006297 dehydration reaction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Classifications
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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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention relates to a damping member for a washing machine, comprising: at least three shock absorbing rods, wherein the shock absorbing rods are correspondingly spliced in sequence to form a strip shock absorbing piece in series; damping elements are respectively arranged at the splicing positions between the adjacent shock absorption rods so as to provide damping force for the relative movement between the opposite splicing shock absorption rods. Through setting up the shock attenuation piece into three or more shock attenuation pole structure that peg graft mutually in proper order to set up damping structure respectively in each grafting department, make the shock attenuation piece can carry out the stack combination shock attenuation through many damping, in order to provide diversified damping force, and then promote the damping performance of shock attenuation piece. The invention also provides a washing machine, and a water containing cylinder of the washing machine is arranged in the shell of the washing machine through the damping piece.
Description
Technical Field
The invention belongs to the field of washing equipment, and particularly relates to a damping piece for a washing machine.
Background
Along with the increase of high-end washing demands in the market of users, the noise reduction demands on the washing machine in the market are higher and higher, but due to structural limitation, a large amount of noise is generated in the stretching movement process of the damping piece, and the damping piece can transmit vibration to the shell to cause vibration and even resonance noise of the washing machine body, so that users cannot obtain good washing experience, and even complaints are generated by the users.
The current damping parts of the washing machine are generally formed by mutually inserting two damping rods, damping structures are arranged between the inserted damping rods, so that damping acting force is provided for the damping parts capable of mutually axially moving, and further the vibration action of the water containing cylinder suspended in the casing of the washing machine in the rotating process is counteracted by the damping parts, so that the aim of damping and buffering the water containing cylinder of the washing machine is fulfilled.
However, since the conventional damping member can only provide a constant single damping force to the water drum, the damping force cannot be adjusted in the whole working process of the washing machine, so that a plurality of problems are caused due to the singleness of the damping force under the whole working condition of the washing machine.
For example: when the water drum runs at high speed to execute the dewatering procedure, the suspended water drum can generate high-frequency and small-amplitude vibration, and the vibration absorbing piece can vibrate along with the water drum, so that the constant damping force is always pushed and pulled to transmit the vibration of the water drum to the shell of the washing machine, and the problem of overlarge vibration noise can be generated.
Also for example: when the water containing cylinder is started at a low speed, the suspended water containing cylinder can generate low-frequency and large-amplitude vibration due to the problems of uneven internal balance and the like, the vibration absorbing piece can vibrate along with the water containing cylinder, if the vibration absorbing piece can only generate single damping acting force, the deviation rectifying effect can not be met when the amplitude of the water containing cylinder is overlarge, and further the problems of overlarge amplitude and even movement of a washing machine body are generated.
In view of this, the present invention has been made.
Disclosure of Invention
The invention aims to solve the technical problems of overcoming the defects of the prior art and providing the damping piece so as to realize the purposes of reducing the running vibration and the running noise of the washing machine; another object is to provide a washing machine with the damping member, so as to achieve the purpose of improving the running stability of the whole machine.
In order to solve the technical problems, the invention adopts the basic conception of the technical scheme that:
a damper for a washing machine, comprising: at least three shock absorbing rods, wherein the shock absorbing rods are correspondingly spliced in sequence to form a strip shock absorbing piece in series; damping elements are respectively arranged at the splicing positions between the adjacent shock absorption rods so as to provide damping force for the relative movement between the opposite splicing shock absorption rods.
Further, the damping member is any one or combination of a damping spring, a damping block, a hydraulic damping structure and an air pressure damping structure.
Further, the adjacent shock absorbing rods are correspondingly and coaxially inserted, so that the strip shock absorbing members formed by the shock absorbing rods are coaxially arranged and extend along a straight line.
Further, damping coefficients of damping elements at the splicing positions of the adjacent damping rods are set unequally; preferably, the damping coefficients of the damping members at the splicing positions of the adjacent damping rods are gradually increased from one end to the other end, and the damping coefficients are the ratio of damping acting force to relative stroke.
Further, the device comprises a primary shock absorption rod, a secondary shock absorption rod and a tertiary shock absorption rod which are formed by sleeve structures and are sequentially spliced; the lower end of the primary shock absorbing rod is inserted from the upper end of the secondary shock absorbing rod, the upper end of the tertiary shock absorbing rod is inserted from the lower end of the secondary shock absorbing rod, and damping components are respectively arranged at the two inserting positions.
Further, the lower end of the secondary shock absorption rod is provided with an annular protruding part protruding outwards, an annular damping block is arranged in the annular protruding part, and the upper end of the tertiary shock absorption rod correspondingly penetrates through the hollow part of the annular damping block; preferably, the outer diameter of the annular damping block is larger than the inner diameter of the secondary damping rod and is equal to the inner wall diameter of the annular bulge, and the inner diameter of the annular damping block is smaller than the inner diameter of the secondary damping rod and is equal to the outer diameter of the upper end of the tertiary damping rod or a certain tolerance gap is reserved between the two.
Further, the outer wall of the primary damping rod is provided with a circle of annular cavity protruding outwards in the radial direction, the lower end of the annular cavity is provided with a circle of opening, and the upper end of the secondary damping rod is correspondingly inserted into the annular cavity from the opening; preferably, the upper end of the secondary shock absorption rod is provided with an annular rib which protrudes outwards radially and is positioned in the annular cavity, and the peripheral diameter of the annular rib is larger than that of the opening; preferably, the periphery of the annular rib is correspondingly in fit contact with the inner wall of the annular cavity.
Further, the annular cavity is filled with a damping block capable of generating elastic deformation, and the annular rib is fixedly spliced with the middle part of the damping block; or the annular cavity opening and the splicing part of the secondary shock absorption rod are arranged in a sealing way, so that the annular cavity is enclosed into a closed cavity; the annular cavity is filled with damping liquid and/or damping gas.
Further, the upper end of the primary damping rod is hinged with a water containing cylinder of the washing machine, and the lower end of the tertiary damping rod is hinged with the casing of the washing machine; or the upper end of the primary damping rod is hinged with the shell of the washing machine, and the lower end of the tertiary damping rod is hinged with the water containing cylinder of the washing machine.
Further, the upper end of the third-stage shock rod penetrates into the cavity of the second-stage shock rod from the lower end of the second-stage shock rod and penetrates through the hollow part of the annular damping block to extend into the first-stage shock rod, and the diameter of the outer wall of the third-stage shock rod is equal to the diameter of the inner wall of the first-stage shock rod or a certain tolerance gap is reserved between the outer wall of the third-stage shock rod and the diameter of the inner wall of the first-stage shock rod.
The invention also provides a washing machine, wherein a water containing cylinder of the washing machine is arranged in the shell of the washing machine through any one of the damping parts.
In the dewatering starting process of the washing machine, the vibration amplitude of the water containing cylinder is larger, and at the moment, a plurality of damping structures simultaneously provide buffer displacement for the water containing cylinder and reduce the vibration amplitude of the water containing cylinder; in the middle and later stages of the dehydration of the washing machine, the vibration amplitude of the water containing cylinder is smaller, and at the moment, the water containing cylinder is only required to be buffered and damped through the damping structure with a lower damping coefficient, and the damping structure with a higher damping coefficient does not act, so that the abrasion of the damping structure is reduced, and the reliability of the device is improved.
According to the invention, the two-stage transmission mechanism of the shock absorbing member is changed into three-stage or more transmission, and each-stage transmission mechanism is distributed with a pair of shock absorbing rods which are mutually spliced, so that the shock absorbing rods can provide damping force for the shock absorbing rods in the relative movement process by the damping structure. The next-stage connecting structure in the damping piece formed by the three-stage transmission mechanism can provide larger displacement, and damping force provided in the upward and downward movement process of the water containing cylinder is constant damping force (generally 80N-120N); the displacement stroke of the upper-stage connecting structure is smaller, the thrust is 0 in the middle of the stroke, and the thrust is continuously increased along with the upward and downward movement of the water containing cylinder.
In the vibration process that the water containing cylinder rotates at a high speed and has very low amplitude, the upper-stage connecting structure continuously vibrates, but because the displacement is smaller, the generated thrust is very small, and the thrust generated by the upper-stage connecting structure is insufficient to push the lower-stage connecting structure to move, so that great noise is reduced in the running process of the washing machine.
In the vibration process that the water containing barrel rotates at a low speed and the amplitude is very large, when the displacement of the upper-stage connecting structure reaches a certain value, the thrust is increased and is larger than the damping force of the lower-stage connecting structure, and the lower-stage connecting structure starts to displace so as to inhibit the low-speed swing of the water containing barrel.
The damping piece with the structure can not only enable the constant damping of the next-stage connecting structure to be inactive when the water containing barrel is at high speed, reduce vibration noise, but also not affect the inhibition of the next-stage connecting structure of the damping piece to the low-speed swing of the water containing barrel when the water containing barrel is at low speed.
After the technical scheme is adopted, compared with the prior art, the invention has the following beneficial effects:
1. through setting up the shock attenuation piece into three or more shock attenuation pole structure that peg graft mutually in proper order to set up damping structure respectively in each grafting department for the shock attenuation piece can carry out the stack combination shock attenuation through many damping, in order to promote shock attenuation stability.
2. In the process that damping force is provided by the damping piece, relative displacement is generated between every two adjacent damping rods along the axial direction, and damping acting force is provided by the damping structure in the displacement process, so that the displacement is slowed down, vibration conducted by a water containing cylinder of the washing machine is counteracted, vibration noise in the running process of the washing machine is reduced, and the stability of the whole machine in the dewatering running process of the washing machine is further ensured.
The invention has simple structure and obvious effect, and is suitable for popularization and use.
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 a schematic view showing a shock absorbing member mounting structure of a washing machine in accordance with an embodiment of the present invention;
FIGS. 2 and 3 are schematic views showing the structure of a shock absorbing member in accordance with an embodiment of the present invention;
FIG. 4 is a schematic A-A sectional view of the shock absorbing member of embodiment 1 of FIG. 3 according to the present invention;
FIG. 5 is a schematic A-A sectional view of the shock absorbing member of embodiment 2 of FIG. 3 according to the present invention;
FIG. 6 is a schematic A-A sectional view of the shock absorbing member of embodiment 3 of FIG. 3 according to the present invention;
FIG. 7 is an enlarged schematic view of the structure of FIG. 6B in accordance with the present invention;
FIG. 8 is a schematic A-A sectional view of the shock absorbing member of embodiment 4 of FIG. 3 according to the present invention.
The main elements in the figure are illustrated: 100. a shock absorbing member; 200. a water holding cylinder; 300. a base; 1. a primary shock-absorbing rod; 2. a primary shock-absorbing rod; 3. a primary shock-absorbing rod; 4. a first hinge hole; 5. a second hinge hole; 6. an annular cavity; 7. an annular projection; 8. annular ribs; 91. a first damping block; 92. a second damping block; 10. an annular damping block; 11. damping fluid and/or damping gas; 12. a first damper spring; 13. and a second damping spring.
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", "front", "rear", "left", "right", "vertical", "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 devices or elements referred to must have a specific orientation, be configured 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 either fixedly connected, detachably connected, or integrally connected, for example; 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.
As shown in fig. 1 to 8, a damper for a washing machine according to an embodiment of the present invention includes: at least three shock absorbing rods, wherein the shock absorbing rods are correspondingly spliced in sequence to form a strip shock absorbing piece 100 in series; damping elements are respectively arranged at the splicing positions between the adjacent shock absorption rods so as to provide damping force for the relative movement between the opposite splicing shock absorption rods.
Through setting up the shock attenuation piece into three or more shock attenuation pole structure that peg graft mutually in proper order to set up damping structure respectively in each grafting department for the shock attenuation piece can carry out the stack combination shock attenuation through many damping, in order to promote shock attenuation stability.
In the embodiment of the present invention, the damping member provided on the shock absorbing member 100 may be any one or combination of existing damping force structures such as a shock absorbing spring, a damping block, a hydraulic damping structure, and an air pressure damping structure.
In the embodiment of the present invention, adjacent shock absorbing rods are correspondingly inserted coaxially, so that each shock absorbing rod is coaxially arranged, and the formed strip-shaped shock absorbing member 100 extends along a straight line. In the process of providing damping force by the damping member 100, relative displacement is generated between each two adjacent damping rods along the axial direction, and damping acting force is provided by the damping structure in the displacement process, so that the displacement is slowed down, vibration conducted by the water containing cylinder of the washing machine is counteracted, and the stability of the whole machine in the dewatering operation process of the washing machine is further ensured.
In the embodiment of the invention, damping coefficients of damping elements at the splicing positions of the adjacent damping rods are not arranged uniformly; preferably, the damping coefficient of the damping member at the insertion position of each adjacent damper rod increases from the connection end of the damper 100 with the drum 200 of the washing machine to the connection end with the casing of the washing machine. Through the arrangement, in the dewatering starting process of the washing machine, the vibration amplitude of the water containing cylinder is larger, and at the moment, the damping structures simultaneously provide the buffer displacement for the water containing cylinder and reduce the vibration amplitude of the water containing cylinder; in the middle and later stages of the dehydration of the washing machine, the vibration amplitude of the water containing cylinder is smaller, and at the moment, the water containing cylinder is only required to be buffered and damped through a damping structure with low damping coefficient, so that the abrasion of the damping structure is reduced, and the reliability of the device is improved.
Example 1
As shown in fig. 2 to 4, the present embodiment describes a damper for a washing machine, which includes: the device comprises a primary damping rod 1, a secondary damping rod 2 and a tertiary damping rod 3 which are formed by sleeve structures and are sequentially spliced; the lower extreme of one-level shock attenuation pole 1 inserts from the upper end of second grade shock attenuation pole 2, and the upper end of tertiary shock attenuation pole 3 inserts from the lower extreme of second grade shock attenuation pole 2, and two grafting are equipped with damping member respectively.
Through setting up by sleeve structure constitutes, the shock attenuation pole of pegging graft each other in proper order for radial spacing is carried out through grafting department between the adjacent shock attenuation pole, and on acting on shock attenuation pole grafting direction with the vibration of flourishing water section of thick bamboo conduction, make the damping component of adjacent shock attenuation pole grafting department carry out shock attenuation cushioning effect respectively to the vibration of flourishing water section of thick bamboo conduction, with provide combination form, diversified damping force to flourishing water section of thick bamboo, and then reach the purpose that reduces the vibration of washing machine operation in-process, promote washing machine operation stationarity.
In the embodiment, the upper end of the primary shock absorption rod 1 is provided with a first hinge hole 4, and the lower end of the tertiary shock absorption rod 2 is provided with a second hinge hole 5; the axes of the first hinge hole 4 and the second hinge hole 5 are perpendicular to the extending direction of the shock absorbing member 100; preferably, the first hinge hole 4 and the second hinge hole 5 are disposed in parallel in the axial direction. Therefore, the primary damping rod is hinged with the washing machine water containing cylinder through the rotating shaft passing through the first hinge hole, and the tertiary damping rod is hinged with the washing machine base through the rotating shaft passing through the second hinge hole, so that vibration generated by the water containing cylinder is transmitted to the damping piece and then only axially stretches out and draws back, and the purpose of buffering and damping axial stretching displacement by utilizing a damping structure between the mutually inserted damping rods is achieved.
In the embodiment, the lower end of the secondary shock absorption rod 2 is provided with an annular protruding part 7 protruding outwards, an annular damping block 10 is arranged in the annular protruding part 7, and the upper end of the tertiary shock absorption rod 3 correspondingly penetrates through a hollow part of the annular damping block 10; preferably, the outer diameter of the annular damping block 10 is larger than the inner diameter of the secondary shock absorbing rod 2 and is equal to the inner wall diameter of the annular bulge 7, and the inner diameter of the annular damping block 10 is smaller than the inner diameter of the secondary shock absorbing rod 2 and is equal to the outer diameter of the upper end of the tertiary shock absorbing rod 3.
In this embodiment, the annular damping block 10 is mounted in the annular protrusion 7 of the secondary shock absorbing rod 2, and is fixedly mounted in the annular protrusion 7 by being limited by the upper and lower wall surfaces of the annular protrusion 7, so that the annular damping block 10 cannot move in the axial direction of the shock absorbing member 100 due to the limiting effect. Meanwhile, the inner peripheral surface of the annular damping block 10 is in contact with the outer wall of the tertiary damping rod 3, the outer peripheral surface of the annular damping block 10 is in contact with the inner wall of the secondary damping rod 2 or is fixedly connected with the outer wall of the tertiary damping rod 3, and the annular damping block 10 and the contact surface of the tertiary damping rod 3 are subjected to friction action to generate damping force for limiting relative movement, so that the annular damping block 10 forms a damping member, and the joint of the secondary damping rod 2 and the tertiary damping rod 3 is provided with damping force for limiting mutual axial movement.
In the embodiment, the outer wall of the primary shock absorption rod 1 is provided with a circle of annular cavity 6 protruding outwards in the radial direction, the lower end of the annular cavity 6 is provided with a circle of opening, and the upper end of the secondary shock absorption rod 2 is correspondingly inserted into the annular cavity 6 from the opening; the upper end of the secondary shock absorption rod 2 is provided with an annular rib 8 which protrudes outwards radially and is positioned in the annular cavity 6, and the peripheral diameter of the annular rib 8 is larger than that of the opening; the periphery of the annular rib 8 is correspondingly attached to and contacted with the inner wall of the annular cavity 6. Preferably, the annular opening is arranged at the joint of the lower side wall of the annular cavity 6 and the outer wall of the primary shock absorption rod 1, so that the upper end of the secondary shock absorption rod 2 which is inserted into the annular cavity 6 in an equal-size manner with the outer diameter of the primary shock absorption rod 1 can be correspondingly inserted from the opening.
In this embodiment, the annular cavity 6 is filled with a damping block capable of generating elastic deformation, the annular rib 8 is fixedly connected with the middle part of the damping block, so that in the process of generating relative axial movement between the secondary damping rod 2 and the primary damping rod 1, the annular rib 8 pushes the damping block and the inner wall of the annular cavity 6 to generate extrusion acting force, the extrusion acting force is transferred to the damping block to generate elastic deformation, and further the damping block generates damping acting force for limiting the relative movement by the elastic deformation of the damping block, so that the damping block forms a damping member, and a damping force for limiting the two to mutually and axially move is provided at the position where the secondary damping rod 2 and the primary damping rod 1 are spliced.
Preferably, as shown in fig. 4, in this embodiment, two damping blocks are disposed in the annular cavity 6, a first damping block 91 is disposed between the annular rib 8 and the upper side wall of the annular cavity 6, and a second damping block 92 is disposed between the annular rib 8 and the lower side wall of the annular cavity 6, so that the upper and lower sides of the annular rib 8 respectively clamp one damping block, and respectively provide limiting damping forces for two different directions at the splicing position of the secondary damping rod 2 and the primary damping rod 1.
In this embodiment, the upper end of the tertiary shock rod 3 penetrates into the secondary shock rod 2 from its lower end and passes through the hollow portion of the annular damping block 10 and then stretches into the primary shock rod 1, and the outer wall diameter of the tertiary shock rod 3 is equal to the inner wall diameter of the primary shock rod 1, so that the outer wall of the upper end of the tertiary shock rod is correspondingly attached to and contacted with the inner wall of the lower end of the primary shock rod. Through with tertiary shock attenuation pole extend all the way to insert in the one-level shock attenuation pole for the upper and lower both ends of whole shock attenuation spare are clearance support spacing respectively, with the fixed position who increases whole shock attenuation spare, and then effective hoisting device's stability.
Example 2
This embodiment differs from embodiment 1 described above in that: as shown in fig. 5, in this embodiment, the damping structure at the position where the primary shock absorbing rod 1 and the secondary shock absorbing rod 2 are inserted is composed of a hydraulic damping structure and/or an air pressure damping structure.
In this embodiment, as shown in fig. 5, the upper end of the secondary shock absorbing rod 2 is correspondingly inserted into an annular cavity 6 protruding from the outer side of the lower end of the primary shock absorbing rod 1, a circle of annular opening is arranged at the lower side of the annular cavity 6, and the opening of the annular cavity 6 and the insertion position of the secondary shock absorbing rod 2 are sealed, so that the annular cavity 6 encloses a closed cavity; the end part of the secondary shock absorption rod 2 inserted into the annular cavity 6 is provided with a circle of annular ribs 8 which radially protrude, so that the plug-in part of the secondary shock absorption rod 2 and the primary shock absorption rod 1 forms a piston cylinder structure formed by the annular ribs 8 and the annular cavity 6. At the same time, the annular chamber 6 is filled with a damping fluid, and/or a damping gas 11, to provide a damping force to the movement of the annular rib 8 within the annular chamber 6.
By the device, the plug-in connection part of the primary damping rod 1 and the secondary damping rod 2 forms a piston cylinder structure. Therefore, when the secondary shock absorbing rod 2 and the primary shock absorbing rod 1 generate mutual axial displacement, the annular rib 8 is acted by damping liquid and/or damping gas 11 to provide a buffering damping force, so that the piston cylinder filled with the damping liquid and/or the damping gas 11 forms a damping member, and a damping force for limiting the mutual axial displacement of the secondary shock absorbing rod and the primary shock absorbing rod is provided at the joint of the secondary shock absorbing rod and the primary shock absorbing rod.
Likewise, the piston cylinder structure in this embodiment may be further disposed at the position where the tertiary shock absorbing rod 3 and the secondary shock absorbing rod 2 are inserted into each other, so as to still provide a damping force for the mutual movement between the tertiary shock absorbing rod 3 and the secondary shock absorbing rod 2.
In this embodiment, the damping gas 11 injected into the annular cavity 6 may be air directly, so as to buffer and damp the relative displacement between the two stages of damping rods by using air resistance.
Example 3
This embodiment differs from embodiment 1 described above in that: as shown in fig. 6, in this embodiment, the damping structure at the position where the primary damper rod 1 and the secondary damper rod 2 are inserted is constituted by a damper spring.
As shown in fig. 6 and 7, in this embodiment, the upper end of the secondary shock absorbing rod 2 is correspondingly inserted into the annular cavity 6 protruding from the outer side of the lower end of the primary shock absorbing rod 1, a circle of annular opening is provided at the lower side of the annular cavity 6, and the upper end of the secondary shock absorbing rod 2 is inserted into the annular cavity 6 from the opening of the annular cavity 6. The end part of the secondary shock absorption rod 2 inserted into the annular cavity 6 is provided with a circle of annular ribs 8 which radially protrude, a first spring 12 is clamped between the annular ribs 8 and the upper side wall of the annular cavity 6, a second spring 13 is clamped between the annular ribs 8 and the lower side wall of the annular cavity 6, and the first spring 12 and the second spring 13 are in a compressed state. The first spring 12 and the second spring 13 cooperate to hold the annular rib 8 in a central position of the annular cavity 6 without the action of external forces, so as to provide a movable allowance for the annular rib 8 to move up and down.
Therefore, when the secondary shock absorbing rod 2 and the primary shock absorbing rod 1 generate mutual axial displacement, the annular rib 8 is acted by the first spring 12 or the second spring 13 to provide a buffering damping force, so that the first spring 12 and the second spring 13 form a damping member, and a damping force for limiting the mutual axial displacement of the secondary shock absorbing rod 2 and the primary shock absorbing rod 1 is provided at the position where the two springs are inserted.
Likewise, the damping structure formed by the damping springs in this embodiment may be further disposed at the position where the tertiary damping rod 3 and the secondary damping rod 2 are inserted into each other, and still provide a damping force for the mutual movement between the tertiary damping rod 3 and the secondary damping rod 2.
Example 4
This embodiment differs from embodiment 1 described above in that: as shown in fig. 8, in this embodiment, the damping structure at the position where the primary damping rod 1 and the secondary damping rod 2 are inserted is composed of a damping block and a hydraulic damping structure, or an air pressure damping structure.
As shown in fig. 8, in this embodiment, the upper end of the secondary shock absorbing rod 2 is correspondingly inserted into an annular cavity 6 protruding from the outer side of the lower end of the primary shock absorbing rod 1, a circle of annular opening is provided at the lower side of the annular cavity 6, and the opening of the annular cavity 6 and the insertion position of the secondary shock absorbing rod 2 are sealed, so that the annular cavity 6 encloses a closed cavity; the end part of the secondary shock absorption rod 2 inserted into the annular cavity 6 is provided with a circle of annular ribs 8 which radially protrude, so that the plug-in part of the secondary shock absorption rod 2 and the primary shock absorption rod 1 forms a piston cylinder structure formed by the annular ribs 8 and the annular cavity 6.
In this embodiment, a first damping block 91 and a second damping block 92 are respectively disposed on the upper side wall and the lower side wall of the annular cavity, and both damping blocks are made of a material capable of generating elastic deformation. A certain gap distance is maintained between the first damping block 91 and the second damping block 92 to provide damping force by using elastic deformation of the damping blocks when the annular rib moves to contact with the damping blocks. At the same time, the annular chamber 6 at the gap between the two damping blocks is filled with damping liquid and/or damping gas 11 to provide a damping force for the movement of the annular rib 8 within the annular chamber 6.
In this embodiment, the damping fluid and/or the damping gas 11 filled in the annular chamber 6 may be air.
By the device, the plug-in connection part of the primary damping rod 1 and the secondary damping rod 2 forms a piston cylinder structure. Therefore, when the secondary shock absorbing rod 2 and the primary shock absorbing rod 1 generate mutual axial displacement, the annular rib 8 is acted by damping liquid and/or damping gas 11 to provide a buffering damping force, so that the piston cylinder filled with the damping liquid and/or the damping gas 11 forms a damping member, and a damping force for limiting the mutual axial displacement of the secondary shock absorbing rod and the primary shock absorbing rod is provided at the joint of the secondary shock absorbing rod and the primary shock absorbing rod. Simultaneously, respectively establish a damping piece at the both ends of annular chamber to provide buffering shock attenuation to the displacement between the shock attenuation pole, avoid the rigidity collision between the shock attenuation pole, in order to further promote the life-span of shock attenuation spare.
Likewise, the piston cylinder structure in this embodiment may be further disposed at the position where the tertiary shock absorbing rod 3 and the secondary shock absorbing rod 2 are inserted into each other, so as to still provide a damping force for the mutual movement between the tertiary shock absorbing rod 3 and the secondary shock absorbing rod 2.
Example 5
As shown in fig. 1, a washing machine is described in this embodiment, which includes a housing in which a water tub 200 is provided, and the water tub 200 is supported in the housing via at least one shock absorbing member 100 described in any one of embodiments 1 to 4.
In this embodiment, the left and right sides of the lower part of the water tub 200 are respectively connected with the base 300 of the washing machine through at least one shock absorbing member 100, the upper end of the shock absorbing member 100 is hinged with the lower side of the water tub 200, and the lower end of the shock absorbing member 100 is hinged with the base 300 of the washing machine; preferably, the shock absorbing members 100 on both the left and right sides are gradually inclined from the top down in a direction away from the axis of the water drum 200 to raise the supporting force of the shock absorbing members 100.
In this embodiment, the damping coefficient of the damping structure at the insertion position of the adjacent damping rod on each damping member 100 decreases from the end connected to the water drum 200 of the washing machine to the end connected to the base 300 of the washing machine. Of course, the damping members in the embodiment of the present invention may be reversely assembled, and the damping coefficients of the damping structures at the insertion positions of the adjacent damping rods on each damping member 100 are sequentially and gradually increased from the end connected with the water drum 200 of the washing machine to the end connected with the base 300 of the washing machine, so that when the amplitude of the water drum is smaller, only the damping structure with the lower damping coefficient is used to damp and buffer the water drum, and in addition, the damping structure with the larger damping coefficient does not generate a relative stroke, thereby achieving the purposes of reducing the abrasion of the damping structure and prolonging the service life of the damping member.
In this embodiment, the shock absorbing member 100 includes a primary shock absorbing rod 1, a secondary shock absorbing rod 2 and a tertiary shock absorbing rod 3 which are formed by a sleeve structure and are sequentially inserted; the lower extreme of one-level shock attenuation pole 1 inserts from the upper end of second grade shock attenuation pole 2, and the upper end of tertiary shock attenuation pole 3 inserts from the lower extreme of second grade shock attenuation pole 2, and two grafting are equipped with damping member respectively. The upper end of the primary shock absorbing rod 1 is hinged with the washing machine water containing cylinder 200, the lower end of the tertiary shock absorbing rod 3 is hinged with the washing machine base 300, and the damping coefficient of the damping structure at the splicing position of the primary shock absorbing rod 1 and the secondary shock absorbing rod 2 is smaller than that of the damping structure at the splicing position of the secondary shock absorbing rod 2 and the tertiary shock absorbing rod 3.
Through the arrangement, in the dewatering starting process of the washing machine, the vibration amplitude of the water containing cylinder is larger, and at the moment, the damping structures simultaneously provide the buffer displacement for the water containing cylinder and reduce the vibration amplitude of the water containing cylinder; in the middle and later stages of the dehydration of the washing machine, the vibration amplitude of the water containing cylinder is smaller, and at the moment, the water containing cylinder is only required to be buffered and damped through a damping structure with low damping coefficient, so that the abrasion of the damping structure is reduced, and the reliability of the device is improved.
The foregoing description is only illustrative of the preferred embodiment of the present invention, and is not to be construed as limiting the invention, but is to be construed as limiting the invention to any and all simple modifications, equivalent variations and adaptations of the embodiments described above, which are within the scope of the invention, may be made by those skilled in the art without departing from the scope of the invention.
Claims (5)
1. A damper for a washing machine, comprising: at least three shock absorbing rods, wherein the shock absorbing rods are correspondingly spliced in sequence to form a strip shock absorbing piece in series; damping elements are respectively arranged at the splicing positions between the adjacent shock absorption rods so as to provide damping force for the relative movement between the opposite splicing shock absorption rods;
damping coefficients of damping elements at the splicing positions of all adjacent damping rods are set differently;
the damping coefficient of the damping member at the splicing position of each adjacent damping rod increases gradually from the connecting end of the damping member and the drum of the washing machine to the connecting end of the damping member and the shell of the washing machine;
comprises a primary damping rod, a secondary damping rod and a tertiary damping rod which are formed by sleeve structures and are sequentially spliced; the lower end of the primary damping rod is inserted from the upper end of the secondary damping rod, the upper end of the tertiary damping rod is inserted from the lower end of the secondary damping rod, and damping members are respectively arranged at the two inserting positions;
the lower end of the secondary shock absorption rod is provided with an annular bulge which protrudes outwards, an annular damping block is arranged in the annular bulge, and the upper end of the tertiary shock absorption rod correspondingly penetrates through the hollow part of the annular damping block; the outer diameter of the annular damping block is larger than the inner diameter of the secondary damping rod and is equal to the inner wall diameter of the annular bulge, and the inner diameter of the annular damping block is smaller than the inner diameter of the secondary damping rod and is equal to the outer diameter of the upper end of the tertiary damping rod;
the outer wall of the primary damping rod is provided with a circle of annular cavity protruding outwards in the radial direction, the lower end of the annular cavity is provided with a circle of opening, and the upper end of the secondary damping rod is correspondingly inserted into the annular cavity from the opening; the upper end of the secondary shock absorption rod is provided with an annular rib which protrudes outwards radially and is positioned in the annular cavity, and the peripheral diameter of the annular rib is larger than that of the opening; the periphery of the annular rib is correspondingly attached to and contacted with the inner wall of the annular cavity; the annular cavity is filled with a damping block capable of generating elastic deformation, and the annular rib is fixedly spliced with the middle part of the damping block; two damping blocks are arranged in the annular cavity, the first damping block is arranged between the annular rib and the upper side wall of the annular cavity, and the second damping block is arranged between the annular rib and the lower side wall of the annular cavity;
the upper end of the third-stage shock rod penetrates into the cavity of the second-stage shock rod from the lower end of the second-stage shock rod and penetrates through the hollow part of the annular damping block to extend into the first-stage shock rod, and the diameter of the outer wall of the third-stage shock rod is equal to the diameter of the inner wall of the first-stage shock rod.
2. The damping member for a washing machine according to claim 1, wherein the damping member is any one or combination of a damper spring, a damper block, a hydraulic damping structure, and a pneumatic damping structure.
3. The shock absorbing member for a washing machine as claimed in claim 1, wherein adjacent shock absorbing rods are inserted coaxially, so that each shock absorbing rod is coaxially disposed and the formed strip-shaped shock absorbing member extends along a straight line.
4. A shock absorbing member for a washing machine according to any one of claims 1 to 3, wherein an upper end of the primary shock absorbing rod is hinged to a water drum of the washing machine, and a lower end of the tertiary shock absorbing rod is hinged to a casing of the washing machine; or the upper end of the primary damping rod is hinged with the shell of the washing machine, and the lower end of the tertiary damping rod is hinged with the water containing cylinder of the washing machine.
5. A washing machine, characterized in that: a water tub of a washing machine is installed in a washing machine housing through a shock absorbing member according to any one of claims 1 to 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811547378.8A CN111334983B (en) | 2018-12-18 | 2018-12-18 | Damping piece and washing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811547378.8A CN111334983B (en) | 2018-12-18 | 2018-12-18 | Damping piece and washing machine |
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| CN111334983A CN111334983A (en) | 2020-06-26 |
| CN111334983B true CN111334983B (en) | 2023-08-18 |
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| Application Number | Title | Priority Date | Filing Date |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1245551A (en) * | 1996-12-09 | 2000-02-23 | 意大利低碳钢股份公司 | Friction damper for washing machine or the like |
| CN1732298A (en) * | 2003-10-06 | 2006-02-08 | Lg电子株式会社 | Damper in a washing machine and fabricating method of the same |
| KR20100050393A (en) * | 2009-10-16 | 2010-05-13 | 주식회사 썬 프레인 코 | Hydraulic damper |
| CN103925321A (en) * | 2013-01-15 | 2014-07-16 | 海尔集团公司 | Variable damping shock absorber and washing machine provided with same |
| CN203960589U (en) * | 2014-06-18 | 2014-11-26 | 苏州三星电子有限公司 | A kind of pulsator washing machine and derrick rig thereof |
| CN106989129A (en) * | 2017-05-09 | 2017-07-28 | 大连理工大学 | A kind of big displacement eddy current damper |
-
2018
- 2018-12-18 CN CN201811547378.8A patent/CN111334983B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1245551A (en) * | 1996-12-09 | 2000-02-23 | 意大利低碳钢股份公司 | Friction damper for washing machine or the like |
| CN1732298A (en) * | 2003-10-06 | 2006-02-08 | Lg电子株式会社 | Damper in a washing machine and fabricating method of the same |
| KR20100050393A (en) * | 2009-10-16 | 2010-05-13 | 주식회사 썬 프레인 코 | Hydraulic damper |
| CN103925321A (en) * | 2013-01-15 | 2014-07-16 | 海尔集团公司 | Variable damping shock absorber and washing machine provided with same |
| CN203960589U (en) * | 2014-06-18 | 2014-11-26 | 苏州三星电子有限公司 | A kind of pulsator washing machine and derrick rig thereof |
| CN106989129A (en) * | 2017-05-09 | 2017-07-28 | 大连理工大学 | A kind of big displacement eddy current damper |
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| Publication number | Publication date |
|---|---|
| CN111334983A (en) | 2020-06-26 |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20230718 Address after: Room 221, Sino German Ecological Park Management Committee, No. 2877, Tuanjie Road, Huangdao District, Qingdao, Shandong 266500 Applicant after: QINGDAO HAIER WASHING ELECTRIC APPLIANCES Co.,Ltd. Applicant after: Haier Smart Home Co., Ltd. Address before: 266101 Haier Industrial Park, 1 Haier Road, Laoshan District, Shandong, Qingdao Applicant before: QINGDAO HAIER DRUM WASHING MACHINE Co.,Ltd. |
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