CN112831992B - Washing machine damping device and washing machine - Google Patents

Abstract

The application discloses washing machine damping device and washing machine. The washing machine damping device includes: a first positioning seat; a second positioning seat; the first ends of the shock absorption rods are fixed on the first positioning seat, and the second ends of the shock absorption rods are movably connected with the second positioning seat; the damping pieces are arranged in one-to-one correspondence with the shock absorption rods and sleeved on the corresponding shock absorption rods, and the damping pieces are used for applying friction damping to the corresponding shock absorption rods. Because the plurality of groups of shock absorption rods and damping parts are arranged, the friction force of a single shock absorption rod and a single damping part can be effectively reduced, so that the influence of over-high temperature rise on the shock absorption performance of each shock absorption rod and each damping part is effectively reduced, and the working reliability of the shock absorption device of the washing machine is favorably improved.

Description

Washing machine damping device and washing machine

Technical Field

The application relates to the field of household appliances, in particular to a washing machine damping device and a washing machine.

Background

The suspension system of the washing machine mainly comprises a suspension type mode and a support type mode, wherein the suspension type mode is that a barrel part (namely a barrel body component) is suspended through a suspension rod, and the support type mode is that the barrel part is supported through a support rod. The suspension system often needs to be provided with a damping structure in order to effectively buffer and consume vibration energy in the dehydration process.

In the related art, vibration energy is generally consumed in a suspension system by means of friction damping, but the suspension system based on the friction damping is easy to have the phenomenon of unreliable damping during the working process.

Disclosure of Invention

In view of this, embodiments of the present application provide a washing machine damping device and a washing machine, which aim to improve the operational reliability of the washing machine damping device based on friction damping.

The technical scheme of the embodiment of the application is realized as follows:

the embodiment of the application provides a washing machine damping device, includes:

a first positioning seat;

a second positioning seat;

the first ends of the shock absorption rods are fixed on the first positioning seat, and the second ends of the shock absorption rods are movably connected with the second positioning seat;

the damping pieces are arranged in one-to-one correspondence with the shock absorption rods, the damping pieces are sleeved on the corresponding shock absorption rods, and the damping pieces are used for applying friction damping to the corresponding shock absorption rods.

The embodiment of the application also provides a washing machine, which comprises the washing machine damping device.

According to the technical scheme, the damping device of the washing machine comprises a first positioning seat and a second positioning seat, a plurality of shock absorption rods are arranged between the first positioning seat and the second positioning seat, and damping pieces are arranged in one-to-one correspondence with the shock absorption rods and used for applying friction damping to the corresponding shock absorption rods, so that vibration energy transmitted by a barrel body assembly can be consumed by the shock absorption rods and the friction damping generated by the damping pieces matched with the shock absorption rods. Because the damping rods and the damping pieces are arranged in multiple groups, the friction force of a single damping rod and a single damping piece can be effectively reduced, the heat dissipation effect of each damping piece can be improved, and the heat accumulation is reduced, so that the influence of excessive temperature rise on the damping performance of each damping piece and each damping rod is effectively reduced, and the working reliability of the damping device of the washing machine is improved.

Drawings

FIG. 1 is a schematic perspective view illustrating a damper device of a washing machine according to an embodiment of the present invention;

FIG. 2 is a second schematic perspective view of a shock absorber of a washing machine according to an embodiment of the present invention;

FIG. 3 is a schematic plan view illustrating a shock absorbing device of a washing machine according to an embodiment of the present invention;

FIG. 4 is a schematic cross-sectional view taken along line A-A of FIG. 3;

FIG. 5 is an enlarged partial view of FIG. 4 at D;

FIG. 6 is an enlarged partial schematic view at E in FIG. 4;

FIG. 7 is a cross-sectional view taken along line B-B of FIG. 3;

FIG. 8 is a schematic cross-sectional view taken along line C-C of FIG. 3;

FIG. 9 is a schematic view of the structure of a shock absorbing rod in the embodiment of the present application;

FIG. 10 is a schematic structural view of a first positioning base according to an embodiment of the present application;

FIG. 11 is a schematic structural view of a first end cap according to an embodiment of the present application;

FIG. 12 is a schematic structural view illustrating the shock-absorbing rod of the embodiment of the present application assembled to the first positioning seat through the first end cap;

fig. 13 is a schematic cross-sectional view taken along a-a of fig. 12.

Description of reference numerals:

1. a first positioning seat; 11. positioning a groove; 12. mounting grooves; 13. a first card slot; 14. a limiting groove;

2. a first end cap; 21. positioning ribs; 22. mounting holes; 23. a first jaw; 24. a limiting block;

3. a shock-absorbing rod; 31. a first end; 32. a second end; 31A, a bending section;

4. an elastic member;

5. a damping member;

6. a second positioning seat; 61. an accommodating chamber; 62. an open end; 63. a limiting end;

631. a through hole; 64. a second card slot;

7. a second end cap; 71. a second jaw;

8. a first connecting rod;

9. a second connecting rod.

Detailed Description

In order to make the purpose, technical solutions and advantages of the present application clearer, the present application will be described in further detail with reference to the accompanying drawings, the described embodiments should not be considered as limiting the present application, and all other embodiments obtained by a person of ordinary skill in the art without making creative efforts fall within the protection scope of the present application.

In the description of the present application, reference is made to "some embodiments" which describe a subset of all possible embodiments, but it is understood that "some embodiments" may be the same subset or different subsets of all possible embodiments, and may be combined with each other without conflict.

Where the description of the present application refers to the use of the terms "first", "second", etc. merely to distinguish one element from another, and not to denote a particular order, it being understood that "first", "second", etc. may be interchanged under appropriate circumstances with either the specific order or the sequence order being used to enable the embodiments of the present application described herein to be practiced otherwise than as specifically illustrated or described herein. Unless otherwise indicated, "plurality" means at least two.

In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present application.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

In this application, unless expressly stated or limited otherwise, the recitation of a first feature "on" or "under" a second feature may include the recitation of the first and second features being in direct contact, and may also include the recitation of the first and second features not being in direct contact, but being in contact with another feature between them. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the related art, a suspension system of a washing machine usually consumes vibration energy by adopting a friction damping mode, but in the working process of the suspension system based on the friction damping, when the temperature rise of a damping part is too large due to heat generated by friction between the damping part and a shock absorption rod, the friction force is often obviously changed, so that the shock absorption performance is influenced.

Based on this, in various embodiments of this application, set up multiunit shock attenuation pole and damping piece in washing machine damping device to greatly reduced each damping piece and the frictional force between the shock attenuation pole that corresponds, increase heat radiating area improves the radiating effect, reduces the heat accumulation of each damping piece and each shock attenuation pole department, thereby effectively reduce each damping piece and shock attenuation pole because of the too big influence to the damping performance of rising temperature, do benefit to and improve washing machine damping device's operational reliability.

An embodiment of the present application provides a washing machine damping device, as shown in fig. 1 to 8, including: the damping device comprises a first positioning seat 1, a second positioning seat 6, a plurality of shock absorption rods 3 and a plurality of damping pieces 5. Wherein, the first positioning seat 1 can be connected with a barrel assembly of the washing machine; the second positioning seat 6 can be connected with the box body of the washing machine; the shock absorption rods 3 are arranged in parallel, and the first end 31 of each shock absorption rod 3 is fixed on the first positioning seat 1; the second end 32 of each shock-absorbing rod 3 is movably connected with the second positioning seat 6; the damping pieces 5 are arranged in one-to-one correspondence with the shock absorption rods 3, and the damping pieces 5 are sleeved on the corresponding shock absorption rods 3 and used for applying friction damping to the corresponding shock absorption rods 3.

Exemplarily, the tub assembly includes an inner tub and an outer tub for holding water, the first positioning seat 1 may be connected to the outer tub, and the second positioning seat 6 may be connected to a base of the cabinet, so that the washing machine damping device forms a structure supporting the tub assembly. In other embodiments, the second positioning seat 6 can also be connected to the top end of the box body, so that the washing machine damping device forms the structure of a hanging barrel body assembly.

It can be understood that, when the tub assembly works, for example, when the washing machine dehydrates, the inner drum rotates at a high speed, the vibration of the tub assembly can be transmitted to the first positioning base 1 connected with the outer tub, and the first positioning base 1 drives the plurality of shock absorbing rods 3 thereon to move relative to the second positioning base 6. At this time, the damping member 5 engaged with each of the shock-absorbing rods 3 may apply damping friction to each shock-absorbing rod 3 to dissipate vibration energy.

In this application embodiment, the vibration energy of staving subassembly through the transmission of first reference numeral 1 can be consumed by the frictional damping that a plurality of shock attenuation poles 3 and the damping piece 5 of 3 cooperations of shock attenuation poles produced. Because of the existence of the multiple groups of shock absorption rods 3 and the damping pieces 5, the friction force between the single damping piece 5 and the shock absorption rods 3 can be effectively reduced, the heat dissipation effect of each damping piece 5 and each shock absorption rod 3 can be improved, and the heat accumulation is reduced, so that the influence of over-high temperature rise on the shock absorption performance of each damping piece 5 and each shock absorption rod 3 is effectively reduced, and the working reliability of the shock absorption device of the washing machine is favorably improved.

In some embodiments, the washing machine shock-absorbing device further includes: the elastic piece 4 is positioned between the first positioning seat 1 and the second positioning seat 6 and can buffer the vibration of the shock absorption rod 3.

In some embodiments, the elastic member 4 is sleeved on at least one of the shock-absorbing rods 3, that is, the elastic member 4 may be sleeved on one shock-absorbing rod 3 or may be disposed around more than two shock-absorbing rods 3.

In some embodiments, the elastic member 4 is located between the shock-absorbing rods 3, i.e. the elastic member 4 may not be disposed on the shock-absorbing rods 3, but disposed at a gap position between the shock-absorbing rods 3.

In some embodiments, the second positioning seat 6 is opened with a plurality of accommodating cavities 61 for respectively accommodating the damping members 5. The damping member 5 is movable in the axial direction of the shock-absorbing rod 3 by a set distance in the accommodation chamber 61, and when the distance of movement in the axial direction of the shock-absorbing rod is greater than the set distance, the damping member 5 applies frictional damping to the shock-absorbing rod 3. Here, because damping part 5 can set for the distance along the axial direction motion of shock-absorbing rod 3 in holding chamber 61 for the staving subassembly is when vibration amplitude is less, damping part 5 can follow shock-absorbing rod 3 and move together, can not exert damping friction to shock-absorbing rod 3 promptly, thereby can control the staving subassembly and be located reasonable vibration range under the buffering cushioning effect of elastic component 4, can further reduce the heat accumulation of each damping part 5 in the course of the work, extension damping part 5's life.

Exemplarily, the washing machine damping device further includes: a first end cap 2 and a second end cap 7. The first end cap 2 is sleeved on the plurality of shock-absorbing rods 3 and fixed on the first positioning seat 1. The second end cap 7 is sleeved on the plurality of shock absorbing rods 3 and fixed on the second positioning seat 6. The elastic element 4 abuts against the first end cap 2 and the second end cap 7, respectively.

As shown in fig. 4, the elastic member 4 may be a spring arranged along the axial direction of the damper rod 3, and both ends of the spring are respectively stopped against the first end cap 2 and the second end cap 7. Here, since the first cap 2 is fixed to the first seat 1, when the tub assembly vibrates, the first cap 2 vibrates following the first seat 1, and the spring may buffer the relative movement between the first cap 2 and the second cap 7 caused by the vibration. For example, the elastic member 4 may be sleeved on at least one of the shock-absorbing rods 3, and the elastic member 4 is radially constrained by the at least one shock-absorbing rod 3.

In some embodiments, the accommodating cavities 61 of the second positioning seat 6 are disposed in one-to-one correspondence with the shock-absorbing rods 3, as shown in fig. 6, each accommodating cavity 61 has an open end 62 and a limiting end 63 for stopping the damping element 5 along the axial direction of the shock-absorbing rod 3, the limiting end 63 is provided with a through hole 631 for the shock-absorbing rod 3 to pass through, and the second end cap 7 covers the open end 62 to stop the damping element 5 in the accommodating cavity 61.

Illustratively, each accommodating cavity 61 is a substantially cylindrical cavity, and the number of the shock absorbing rods 3 is three for illustration, three accommodating cavities 61 are formed on the second positioning seat 6, one side of each accommodating cavity 61 facing the second end cap 7 is an open end 62, and one side of each accommodating cavity 61 facing away from the second end cap 7 is a limiting end 63. Each shock absorbing rod 3 penetrates through the second end cover 7 and then extends into the accommodating cavity 61. The damping member 5 is located in the accommodating cavity 61 and is in interference fit with the shock absorbing rod 3. The second end 32 of the shock-absorbing rod 3 extends out of the accommodating cavity 61 after passing through the through hole 631 of the limiting end 63.

Here, a corresponding damping member 5 is provided at each shock-absorbing rod 3, i.e., the damping member 5 is provided in pair with the shock-absorbing rod 3. Illustratively, the damping member 5 is annular, the damping member 5 is in interference fit with the shock absorbing rod 3, and the length of the damping member 5 along the axial direction of the shock absorbing rod 3 is smaller than the length of the accommodating cavity 61. As shown in fig. 4, when the shock-absorbing rod 3 is displaced along the right side of the figure and the damping member 5 is stopped against the limit end 63, damping friction is applied to the shock-absorbing rod 3. When the shock-absorbing rod 3 is displaced along the left side as shown in the figure, the damping member 5 is stopped against the second end cap 7, and damping friction is applied to the shock-absorbing rod 3.

In some embodiments, as shown in FIG. 9, the first end 31 of the shock rod 3 has a bent section 31A. As shown in fig. 10, the first positioning seat 1 is provided with a positioning groove 11 for placing the shock-absorbing rod 3 and a mounting groove 12, and the positioning groove 11 is communicated with the mounting groove 12. The first end cap 2 is sleeved on the shock absorption rod 3 and fixed on the first positioning seat 1, so that the shock absorption rod 3 is assembled on the first positioning seat 1.

Illustratively, as shown in fig. 9, the first end 31 of the shock absorbing rod 3 includes a bending section 31A disposed at an angle α with respect to the shaft of the shock absorbing rod 3, and the angle α may be 90 ° or an angle close to 90 °, i.e., the extending direction of the bending section 31A is substantially perpendicular to the axial direction of the shock absorbing rod 3.

Illustratively, as shown in fig. 10, the aperture of the positioning groove 11 is larger than the outer diameter of the damper rod 3. The mounting groove 12 is located on a side of the positioning groove 11 away from the first end cap 2, and in an extending direction of the bending section 31A, a length of the mounting groove 12 is greater than or equal to a length of the bending section 31A. Like this, the bending section 31A of the first end 31 of the shock-absorbing rod 3 can pass through the positioning groove 11 and extend into the mounting groove 12, and the bending section 31A can be completely accommodated by the mounting groove 12. After the bending section 31A is installed in the installation groove 12, as long as the radial movement of the shock-absorbing rod 3 is restrained, the bending section 31A can be effectively prevented from sliding out of the installation groove 12, the bending section 31A is restrained by the installation groove 12, and the restraint of the shock-absorbing rod 3 in the axial direction can be realized.

As shown in fig. 11, the first end cap 2 further includes a positioning rib 21 for penetrating the shock absorbing rod 3, and the positioning rib 21 is engaged with the positioning groove 11 to constrain the shock absorbing rod 3 along the radial direction of the shock absorbing rod 3. Exemplarily, location muscle 21 is roughly the annular, and location muscle 21 inner wall forms the mounting hole 22 that supplies shock attenuation pole 3 to link up, and first end cover 2 is fixed in on the first location seat 1 back, and the outer wall of location muscle 21 cooperates with constant head tank 11, can realize the restraint to shock attenuation pole 3 along radial direction, and meanwhile, bending section 31A will lock in mounting groove 12, and by mounting groove 12 to bending section 31A's restriction, the restraint of realization shock attenuation pole 3 along axial direction has realized shock attenuation pole 3 and has assembled the effect on first location seat 1 firmly. For example, the first end cap 2 is detachably connected to the first positioning socket 1, and/or the second end cap 7 is detachably connected to the second positioning socket 6. So, can realize fast assembly or the dismantlement between damper rod 3 and first positioning seat 1 and the second positioning seat 6 fast, reduce the installation degree of difficulty, improve assembly efficiency.

In an application example, the first end cap 2 is connected with the first positioning seat 1 in a clamping mode. As shown in fig. 10 to 13, a first jaw 23 is disposed on the first end cap 2, a first clamping groove 13 corresponding to the first jaw 23 is formed on the first positioning seat 1, and the first end cap 2 and the first positioning seat 1 are connected by clamping through the cooperation of the first jaw 23 and the first clamping groove 13. Exemplarily, the first end cover 2 is further provided with a limiting block 24 for assisting limiting on the mounting surface facing the first positioning seat 1, and accordingly, the first positioning seat 1 is provided with a limiting groove 14 corresponding to the limiting block 24, so that the connection reliability between the first end cover 2 and the first positioning seat 1 is further enhanced, and the constraint between the first end cover 2 and the first positioning seat 1 along the radial direction of the shock absorption rod 3 is realized.

It can be understood that the shock-absorbing rods 3 are provided in a plurality, and the first positioning seat is provided with a plurality of positioning grooves 11 and a plurality of mounting grooves 12. The positioning grooves 11 are in one-to-one correspondence with the shock-absorbing rods 3, and the mounting grooves 12 are in one-to-one correspondence with the bending sections 31A. It is understood that the positioning ribs 21 on the first end cap 2 are also disposed in one-to-one correspondence with the shock-absorbing rods 3. In other words, the positioning grooves 11 and the mounting grooves 12 formed in the first positioning seat 1 correspond to the shock-absorbing rods 3 one by one, and the positioning ribs 21 formed on the first end cover 2 correspond to the shock-absorbing rods 3 one by one. In other words, the positioning grooves 11 and the mounting grooves 12 formed in the first positioning seat 1 correspond to the shock-absorbing rods 3 one by one, and the positioning ribs 21 formed on the first end cover 2 correspond to the shock-absorbing rods 3 one by one. In an application example, the number of the shock absorption rods 3 is three, three groups of positioning grooves 11 and mounting grooves 12 are formed in the first positioning seat 1, and three positioning ribs 21 are arranged on the first end cover 2. It can be understood, to a plurality of shock absorber rods 3, can stretch into the mounting groove 12 that corresponds with the bending segment 31A of each shock absorber rod 3 earlier in proper order, realize shock absorber rod 3 along the ascending location of axial direction, then, locate a plurality of shock absorber rods 3 with first end cover 2 on through the mounting hole 22 cover with 3 one-to-one of shock absorber rod, then, be fixed in first location seat 1 with 2 joints of first end cover, at this moment, the location muscle 21 and the constant head tank 11 cooperation of each mounting hole 22 department, the realization is radial spacing to each shock absorber rod 3. Thereby realizing the quick installation and the location of a plurality of shock-absorbing rods 3. When needing to dismantle, only need loosen the first end cover 2 that the joint is connected, can remove the restraint of each shock attenuation pole 3 fast.

In an application example, as shown in fig. 6, a second clamping jaw 71 is disposed on the second end cover 7, a second clamping groove 64 corresponding to the second clamping jaw 71 is formed on the second positioning seat 6, and the second end cover 7 and the second positioning seat 6 are connected by the second clamping jaw 71 and the second clamping groove 64 in a clamping manner.

Exemplarily, the assembling process of the shock absorbing device of the washing machine is as follows:

the first end 31 of each shock-absorbing rod 3 extends into the positioning groove 11 of the first positioning seat 1, and the bending section 31A of each shock-absorbing rod 3 is in butt fit with the mounting groove 12. The first end cap 2 is sleeved on each shock absorption rod 3 and fixed on the first positioning seat 1 through the matching of the first clamping jaw 23 and the first clamping groove 13. Then, the elastic member 4 is sleeved on at least one of the shock-absorbing rods 3, the second end cap 7 is sleeved on each shock-absorbing rod 3, and finally, the second end cap 7 is fixed on the second positioning seat 6 through the cooperation of the second clamping jaw 71 and the second clamping groove 64, and meanwhile, the shock-absorbing rod 3 passes through the accommodating cavity 61 arranged on the second positioning seat 6 and is in interference fit with the damping member 5 arranged in the accommodating cavity 61. Thus, the assembly of the shock absorption device of the washing machine is realized.

In the actual working process, if the damping piece 5 fails, the second end cap 7 only needs to be detached, the damping piece 5 at the second end 32 of the shock absorption rod 3 is replaced, and then the second end cap 7 is fixed on the second positioning seat 6, so that the maintenance operation is greatly simplified.

In some embodiments, the elastic member 4 is disposed along the axial direction of the shock-absorbing rods 3, and the axial center line of the elastic member 4 is located between the axial center lines of the plurality of shock-absorbing rods 3.

As shown in fig. 7 and 8, in one application example, the number of the shock absorbing rods 3 is three, and the number of the damping members 5 is three corresponding to the shock absorbing rods 3, i.e., the damping members 5 are arranged in one-to-one correspondence with the shock absorbing rods 3. The axial centre line O of the elastic element 4 is located between the axial centre lines a, b, c of the three shock-absorbing rods 3. It will be understood that the elastic member 4 is sleeved on the at least one shock absorbing rod 3, so as to achieve buffering and shock absorption between the first end cap 2 and the second end cap 7.

Here, the number of the shock absorbing rods 3 is three, so that three groups of shock absorbing rods 3 and damping members 5 are matched, frictional damping applied by each damping member 5 during shock absorption can be effectively dispersed, and the influence of excessive temperature rise on shock absorption performance of each damping member 5 is avoided.

Illustratively, three accommodating cavities 61 formed in the second mounting seat 6 are distributed in an equilateral triangle, so that the friction damping applied by each shock absorption rod 3 is uniformly distributed, stable and reliable shock absorption of a plurality of shock absorption rods 3 is facilitated, and the shock absorption effect is improved.

Exemplarily, the washing machine damping device further includes: a first connecting rod 8 and a second connecting rod 9. The first connecting rod 8 is fixed on the first positioning seat 1, the first connecting rod 8 is provided with mounting threads, and the first connecting rod 8 is fixed on a barrel assembly of the washing machine through the mounting threads, so that the first positioning seat 1 is connected with the barrel assembly of the washing machine. The second connecting rod 9 is fixed on the second positioning seat 6, the second connecting rod 9 is provided with mounting threads, and the second connecting rod 9 is fixed on the box body of the washing machine through the mounting threads, so that the second positioning seat 6 is connected with the box body of the washing machine.

In other embodiments, the first positioning seat 1 may be further connected to a tub assembly of the washing machine and/or the second positioning seat 6 may be further connected to a box of the washing machine through another connection structure, for example, the first positioning seat 1 and/or the second positioning seat 6 are provided with mounting holes, and are fixed to the tub assembly or the box of the washing machine through the mounting holes, which is not specifically limited in this application.

The embodiment of the application also provides a washing machine, which comprises the washing machine damping device. The washing machine can be a pulsator washing machine or a roller washing machine. Washing machine damping device based on this application embodiment can effectively reduce each damping piece and each shock attenuation pole because of rising temperature too big to the influence of damping performance, does benefit to the operational reliability who improves washing machine damping device to effectively avoid staving subassembly collision box.

It should be noted that: the technical solutions described in the embodiments of the present application can be arbitrarily combined without conflict.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (10)

1. A shock-absorbing device for a washing machine, comprising:

a first positioning seat (1);

the second positioning seat (6) is provided with a plurality of accommodating cavities (61);

the first ends (31) of the shock absorption rods (3) are fixed on the first positioning seat (1), and the second ends (32) of the shock absorption rods (3) are movably connected with the second positioning seat (6);

a plurality of damping pieces (5), set up in hold in the chamber (61), damping piece (5) with shock attenuation pole (3) one-to-one sets up, damping piece (5) cover is located the correspondence on shock attenuation pole (3), damping piece (5) are used for corresponding shock attenuation pole (3) apply friction damping.

2. The washing machine shock absorbing device as set forth in claim 1, further comprising:

the elastic piece (4) is positioned between the first positioning seat (1) and the second positioning seat (6);

the elastic piece (4) is sleeved on at least one of the shock absorption rods (3), or the elastic piece (4) is located between the shock absorption rods (3).

3. The washing machine shock absorbing device as claimed in claim 1,

the damping piece (5) can move for a set distance in the containing cavity (61) along the axial direction of the shock absorption rod (3), and when the distance moving in the axial direction of the shock absorption rod is larger than the set distance, the damping piece (5) applies friction damping to the shock absorption rod (3).

4. The washing machine shock absorbing device as claimed in claim 2, further comprising:

the first end cover (2), the first end cover (2) is sleeved on the shock absorption rods (3) and fixed on the first positioning seat (1);

the second end covers (7), the second end covers (7) are sleeved on the shock absorption rods (3) and are fixed on the second positioning seats (6);

the elastic piece (4) is respectively abutted against the first end cover (2) and the second end cover (7).

5. The washing machine shock absorbing device according to claim 4, wherein the accommodating cavities (61) on the second positioning seat (6) are arranged in one-to-one correspondence with the damping members (5), each accommodating cavity (61) has an open end (62) and a limit end (63) for stopping the damping members (5) along the axial direction of the shock absorbing rod (3), the limit end (63) is provided with a through hole (631) for the shock absorbing rod (3) to pass through, and the second end cover (7) covers the open end (62) to stop the damping members (5) in the accommodating cavities (61).

6. The shock absorbing device for a washing machine as claimed in claim 1,

the damping piece (5) is located in the containing cavity (61) and is in interference fit with the shock absorption rod (3).

7. The washing machine shock absorbing device as claimed in claim 1,

the shock-absorbing rod is characterized in that a positioning groove (11) and a mounting groove (12) are formed in the first positioning seat (1), the positioning groove (11) is communicated with the mounting groove (12), and the positioning groove (11) and the mounting groove (12) are used for placing the shock-absorbing rod (3).

8. The washing machine shock absorbing device as claimed in claim 4,

the first end cover (2) is connected with the first positioning seat (1) in a clamping mode; and/or the presence of a gas in the gas,

the second end cover (7) is connected with the second positioning seat (6) in a clamping mode.

9. The washing machine shock absorbing device as claimed in claim 1,

the number of the shock absorption rods (3) is three, and the number of the accommodating cavities (61) is three;

the three accommodating cavities (61) are distributed on the second positioning seat (6) in an equilateral triangle shape.

10. A washing machine characterized by comprising a washing machine vibration damping device as claimed in any one of claims 1 to 9.

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