CN110965268A - Washing machine shock absorber and washing machine - Google Patents
Washing machine shock absorber and washing machine Download PDFInfo
- Publication number
- CN110965268A CN110965268A CN201811144796.2A CN201811144796A CN110965268A CN 110965268 A CN110965268 A CN 110965268A CN 201811144796 A CN201811144796 A CN 201811144796A CN 110965268 A CN110965268 A CN 110965268A
- Authority
- CN
- China
- Prior art keywords
- sleeve
- piston
- friction
- groove
- washing machine
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000005406 washing Methods 0.000 title claims abstract description 73
- 230000035939 shock Effects 0.000 title claims abstract description 27
- 239000006096 absorbing agent Substances 0.000 title claims abstract description 15
- 238000000034 method Methods 0.000 claims abstract description 17
- 238000003780 insertion Methods 0.000 claims description 5
- 230000037431 insertion Effects 0.000 claims description 5
- 230000000694 effects Effects 0.000 abstract description 10
- 238000010521 absorption reaction Methods 0.000 abstract description 5
- 238000013016 damping Methods 0.000 description 8
- 230000003068 static effect Effects 0.000 description 8
- 208000005156 Dehydration Diseases 0.000 description 7
- 230000018044 dehydration Effects 0.000 description 7
- 238000006297 dehydration reaction Methods 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000872 buffer Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
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
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
- Accessory Of Washing/Drying Machine, Commercial Washing/Drying Machine, Other Washing/Drying Machine (AREA)
Abstract
The invention belongs to the field of washing machines, and particularly discloses a washing machine shock absorber which comprises a sleeve and a piston, wherein one end of the piston is inserted into the sleeve, a sliding part is arranged in the sleeve, a first friction part is arranged between the sleeve and the piston, a second friction part is arranged between the sleeve and the sliding part, and the first friction part and the second friction part generate friction force to absorb shock transmitted to the sleeve or the sliding part in the process that the piston moves relative to the sleeve or simultaneously. The invention also discloses a washing machine with the shock absorber. The shock absorber is suitable for large-amplitude working conditions of washing, rinsing, low-speed dewatering and the like of a washing machine, and is also suitable for small-amplitude working conditions of high-speed dewatering, so that better shock absorption and noise reduction effects are realized.
Description
Technical Field
The invention belongs to the field of washing machines, and particularly relates to a washing machine damper and a washing machine.
Background
From the whole washing process of the washing machine, vibration is generated in each stage of washing, rinsing and dewatering. The rotating speed of the inner drum of the drum washing machine is changed from 0 to 1460r/min, namely the rotating speed is changed between 0 and 25Hz, in the rotating process of the inner drum, because clothes are washed and unevenly distributed, forces in two vibration systems are formed, and one is off-load to cause the outer drum to move downwards; centrifugal force causes the outer barrel to rock left and right. The existing washing machine vibration damper mainly leans against the friction force, and buffers and consumes the vibration energy of the washing machine during washing and dehydration. In the drum washing machine, the vibration absorber can absorb and eliminate vibration, prevent creeping, and reduce noise, which is an important device for ensuring the performance and prolonging the life of the washing machine.
Fig. 1 is a sectional view of a conventional damper, the damper includes a cylinder 300 and a plunger 400 having one end inserted into the cylinder 300, the plunger 400 can move along the inner wall of the cylinder 300, a friction plate 500 and a lubricating grease are disposed between contact surfaces of the cylinder 300 and the plunger 400, a cylinder fixing end 100 is connected to an outer cylinder of a washing machine, an opening is disposed at the other end of the cylinder 300, one end of the plunger 400 is inserted into the cylinder 300 through an opening, the plunger fixing end 200 is connected to a housing of the washing machine, and the plunger 400 and the cylinder 300 absorb shock through friction generated by the friction plate 500 during the movement process.
The existing shock absorber can have better shock absorption effect under the condition of small amplitude in a high-speed dehydration stage, but the shock absorption effect is not ideal under the conditions of large amplitude in washing, rinsing, a low-speed dehydration stage and the like.
Therefore, it is necessary to provide a shock absorber for a washing machine and a washing machine with the shock absorber, which are suitable for the large-amplitude working conditions of the washing machine such as washing, rinsing and low-speed dehydration, and also suitable for the small-amplitude working conditions of the high-speed dehydration, so as to achieve better damping and noise reduction effects.
The present invention has been made in view of this situation.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a washing machine damper which is suitable for large-amplitude working conditions of washing, rinsing, low-speed dehydration and the like of a washing machine and small-amplitude working conditions of high-speed dehydration so as to realize better damping and noise reduction effects and the washing machine with the damper.
In order to solve the technical problem, the invention provides a washing machine damper, which comprises a sleeve and a piston with one end inserted into the sleeve, wherein a sliding part is arranged in the sleeve, a first friction part is arranged between the sleeve and the piston, a second friction part is arranged between the sleeve and the sliding part, and the first friction part and the second friction part or simultaneously generate friction force to absorb the vibration transmitted to the sleeve or the sliding part in the process that the piston moves relative to the sleeve.
Further, the piston is movably arranged relative to the inner wall of the sleeve, the first friction piece is arranged on the inner wall of the sleeve and/or the outer wall of the piston, and the first friction piece generates friction force to absorb shock transmitted to the sleeve in the process that the piston moves relative to the sleeve.
Further, a first groove is formed in the inner wall of the piston and/or the outer wall of the sleeve, and the first friction piece is arranged in the first groove;
preferably, the first groove is long and is arranged on the inner wall of the sleeve and/or the outer wall of the piston along the length direction of the sleeve, the first friction piece is arranged in the first groove, and the length of the first groove is greater than or equal to that of the first friction piece;
more preferably, the length of the first groove is greater than the length of the first friction member, and the first friction member is movably disposed in the first groove.
Furthermore, the sliding part is movably arranged relative to the inner wall of the sleeve, the second friction piece is arranged on the outer wall of the sliding part/the inner wall of the sleeve, and the first friction piece and the second friction piece simultaneously generate friction force to absorb shock transmitted to the sliding part in the process that the piston is linked with the sliding part to move relative to the sleeve.
Further, a second groove is formed in the outer wall of the sliding part, and the second friction part is arranged in the second groove;
preferably, the second groove is long and is arranged on the outer wall of the sliding part along the length direction of the sleeve, the second friction piece is arranged in the second groove, and the length of the second groove is greater than or equal to that of the second friction piece;
more preferably, the length of the second groove is greater than the length of a second friction member, and the second friction member is movably arranged in the second groove.
Furthermore, a connecting piece is arranged between the sliding piece and the piston, one end of the connecting piece is connected with the sliding piece, the other end of the connecting piece is connected with one end of the piston insertion sleeve, and the connecting piece is movably arranged relative to the piston and/or the sliding piece.
Further, a cavity is formed in the piston, one end of the connecting piece is inserted into the cavity and can reciprocate in the cavity, a first stopping portion is arranged at one end of the connecting piece inserted into the cavity, and the other end of the connecting piece is fixedly connected with the sliding piece.
Furthermore, a cavity is formed in the piston, one end of the connecting piece is inserted into the cavity and can reciprocate in the cavity, a first stopping portion is arranged at one end of the connecting piece, which is inserted into the cavity, a second stopping portion is arranged at one end of the connecting piece, which is far away from the cavity, and the sliding piece is arranged between the piston and the second stopping portion and can reciprocate along the connecting piece.
Furthermore, one end of the connecting piece is fixedly connected with the piston, a second stopping portion is arranged at one end, far away from the piston, of the connecting piece, and the sliding piece is arranged between the piston and the second stopping portion and can reciprocate along the connecting piece.
The invention also provides a washing machine, which comprises a shell, an outer barrel and a damper, wherein one end of the damper is connected with the shell, the other end of the damper is connected with the outer barrel, the damper comprises a sleeve and a piston, one end of the piston is inserted into the sleeve, a sliding part is arranged in the sleeve, a first friction part is arranged between the sleeve and the piston, a second friction part is arranged between the sleeve and the sliding part, and the first friction part generates friction force independently in the process that the piston moves relative to the sleeve or the piston is linked with the sliding part to generate friction force simultaneously in the process that the sliding part moves relative to the sleeve so as to absorb the vibration transmitted to the sleeve or the sliding part.
After adopting the technical scheme, compared with the prior art, the invention has the following beneficial effects:
1. by arranging the first friction piece between the sleeve and the piston and arranging the second friction piece between the sliding piece and the sleeve, the vibration can be absorbed only through the friction force generated by the first friction piece under the condition of small amplitude, and the vibration can be absorbed through the friction force simultaneously generated by the first friction piece and the second friction piece under the condition of large amplitude, so that the vibration absorption effect on different types of vibration can be realized;
2. through setting up in first recess and second recess on first friction spare and second friction to avoid having certain thickness to lead to between piston and the sleeve because of the friction spare, and there is the space between slider and the sleeve, thereby lead to the condition that appears colliding between piston and sleeve and slider and the sleeve under great vibrations condition.
3. The size of the first groove is larger than the length of the first friction piece, and/or the size of the second groove is larger than the length of the second friction piece, so that the vibration absorption effect can be good when the vibration amplitude of the washing machine is more slightly changed.
4. The connecting piece is arranged between the sliding piece and the piston, and the connecting piece and the sliding piece and/or the piston can be movably arranged, so that when the amplitude of the washing machine is small, the sliding piece is static relative to the sleeve, only the piston moves relative to the sleeve, at the moment, the first friction piece generates friction force to absorb vibration, when the amplitude of the vibration is large, the piston moves to the position of the piston to push the piston to move relative to the sleeve, and when the piston moves to the maximum stroke, the sliding piece is pulled by the connecting piece to move relative to the sleeve, at the moment, the piston is linked with the sliding piece, and the first friction piece and the second friction piece simultaneously.
The following describes 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, 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 without limiting the invention to the right. It is obvious that the drawings in the following description are only some embodiments, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:
FIG. 1 is a cross-sectional view of a prior art shock absorber;
FIGS. 2-4 are cross-sectional views of various embodiments of the washer damper of the present invention;
wherein: 100 is a cylinder fixed end, 200 is a plunger fixed end, 300 is a cylinder, 400 is a plunger, 500 is a friction plate, 1 is a first fixed end, 2 is a second fixed end, 3 is a piston, 4 is a sleeve, 5 is a first friction piece, 6 is a second friction piece, 7 is a first groove, 8 is a second groove, 9 is a connecting piece, 10 is a first stopping part, and 11 is a second stopping part; 12 is a stop block; 13 is a cavity, 14 is a thread, and 15 is a sliding piece.
It should be noted that the drawings and the description are not intended to limit the scope of the inventive concept in any way, but to illustrate it by a person skilled in the art with reference to specific embodiments.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and the following embodiments are used for illustrating the present invention and are not intended to limit the scope of the present invention.
In the description of the present invention, it should be noted that the terms "inside", "outside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience in describing the present invention 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 operate, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "contacting," and "communicating" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
First, the washing machine damper of the present invention is applicable to a washing machine apparatus in which the vibration frequency or vibration frequency is changed, and is also applicable to a pulsator washing machine and a drum washing machine, and for convenience of description, the detailed embodiment of the present invention will be described by taking only the drum washing machine as an example.
A damper for a washing machine as shown in fig. 2-4, comprising a sleeve 4, wherein one end of the sleeve 4 is a first fixing end 1, the other end of the sleeve 4 is provided with an opening, one end of a piston 3 is inserted into the sleeve 4 through the opening and can reciprocate in the sleeve 4, and the other end of the piston 3 is a second fixing end 2. The first fixed end 1 is fixed on the outer drum of the drum washing machine, and the second fixed end 2 is fixed on the outer drum washing machine, or vice versa. A sliding part 15 is arranged in the sleeve 4, a first friction part 5 is arranged between the sleeve 4 and the piston 3, a second friction part 6 is arranged between the sleeve 4 and the sliding part 15, and during the movement process of the piston 3 relative to the sleeve 4, one or both of the first friction part 5 and the second friction part 6 generate friction force to absorb the vibration transmitted to the sleeve 4 or the sliding part 15. The first friction member 5 and the second friction member 6 may have the same or different structures and/or the same or different friction coefficients. The piston 3 and the sliding member 15 are linked to each other in any arrangement that allows both to move simultaneously, such as by providing a connecting rod, a spring, or by magnetic pole adsorption.
Further, the sleeve 4 is cylindrical and the piston 3 is rod-shaped, thus preventing the piston 3 from being rotated at a prescribed angle in a circumferential direction by vibration transmitted from the washing machine to damage the damper.
Further, the piston 3 is movably arranged relative to the inner wall of the sleeve 4, the outer wall of the piston 3 is in contact with the inner wall of the sleeve 4, the first friction piece 5 is arranged on the inner wall of the sleeve 4, and the first friction piece 5 generates friction force to absorb shock transmitted to the sleeve 4 in the process that the piston 3 moves relative to the sleeve 4. The first friction member 5 may be a closed or non-closed ring disposed on the inner wall of the sleeve 4 and/or the outer wall of the piston 3, or may be only a small area distributed on the inner wall of the sleeve 4 and/or the outer wall of the piston 3.
Further, a first groove 7 is formed in the inner wall of the piston 3 and/or the outer wall of the sleeve 4, and the first friction piece 5 is arranged in the first groove 7; the first groove 7 may be a closed or non-closed ring disposed on the inner wall of the sleeve 4 and/or the outer wall of the piston 3, or may be only a small area distributed on the inner wall of the sleeve 4 and/or the outer wall of the piston 3. The purpose of providing first recess 7 is because first friction member 5 has certain thickness, can lead to producing the space between sleeve 4 and the piston 3 when directly setting up first friction member 5 at piston 3 outer wall and/or sleeve 4 inner wall, can not laminate completely between sleeve 4 and the piston 3 inner wall, and in the great vibrations in-process of washing machine, thereby the condition that piston 3 striking sleeve 4 can appear reduces the shock attenuation effect.
Preferably, the first groove 7 is long and is arranged on the inner wall of the sleeve 4 along the length direction of the sleeve 4, the first friction piece 5 is a friction plate and is arranged in the first groove 7, and the length of the first groove 7 is greater than or equal to that of the first friction piece 5;
more preferably, the length of the first groove 7 is greater than that of the first friction member 5, the first friction member 5 is movably disposed in the first groove 7, when the washing machine is in a high-frequency rotation speed condition, the washing machine vibrates less, the first friction member 5 moves in the first groove 7 but does not generate friction, when the washing machine is in a low-frequency rotation speed condition, the washing machine vibrates more, when the first friction member 5 moves to two ends of the first groove 7 and is abutted against two ends of the second groove 8, the first friction member 5 generates friction, and the arrangement can adapt to finer vibration changes.
More preferably, the first groove 7 is arranged on the inner wall of the insertion end of the sleeve 4, and the first friction member 5 is arranged on the insertion end of the sleeve 4 through the first groove 7;
and/or, the first groove 7 is arranged on the outer wall of one end of the piston 3 inserted into the sleeve 4, and the second friction piece 6 is arranged at one end of the piston 3 inserted into the sleeve 4 through the first groove 7.
Further, the sliding member 15 is movably disposed relative to the inner wall of the sleeve 4, the second friction member 6 is disposed on the outer wall of the sliding member 15/the inner wall of the sleeve 4, and the first friction member 5 and the second friction member 6 generate friction force simultaneously to absorb the shock transmitted to the sliding member 15 during the movement of the piston 3 linked with the sliding member 15 relative to the sleeve 4. The second friction member 6 may be a closed or non-closed ring disposed on the inner wall of the sleeve 4/the outer wall of the sliding member 15, or may be only a small area distributed on the inner wall of the sleeve 4/the outer wall of the sliding member 15.
Further, a second groove 8 is arranged on the outer wall of the sliding part 15, and the second friction part 6 is arranged in the second groove 8; the second groove 8 may be a closed or non-closed ring disposed on the inner wall of the sleeve 4/the outer wall of the sliding member 15, or may be only a small area distributed on the inner wall of the sleeve 4/the outer wall of the sliding member 15. The purpose of the second groove 8 is that since the second friction member 6 has a certain thickness, when the second friction member 6 is directly disposed on the outer wall of the sliding member 15/the inner wall of the sleeve 4, a gap is generated between the sleeve 4 and the sliding member 15, the sleeve 4 and the inner wall of the piston 3 cannot be completely attached to each other, and in the process of large vibration of the washing machine, the sliding member 15 collides with the sleeve 4, so that the damping effect is reduced.
Preferably, the second groove 8 is elongated and is arranged on the outer wall of the sliding part 15 along the length direction of the sleeve 4, the second friction part 6 is a friction plate and is arranged in the second groove 8, and the length of the second groove 8 is greater than or equal to the length of the second friction part 6;
more preferably, the length of the second groove 8 is greater than the length of the second friction member 6, and the second friction member 6 is movably disposed in the second groove 8. When the washing machine is in the high-frequency rotating speed condition, the washing machine shakes less, the sliding part 15 is static relative to the sleeve 4, the second friction piece 6 does not work at the moment, when the washing machine is in the second high-frequency rotating speed condition, the second friction piece 6 moves in the second groove 8, but does not generate friction force, when the washing machine is in the low-frequency rotating speed condition, the washing machine shakes more, when the second friction piece 6 moves to two ends of the second groove 8 and is abutted against two ends of the second groove 8, the second friction piece 6 generates friction force at the moment, and the arrangement can adapt to finer vibration changes.
In addition, besides the embodiment, the first friction member 5, the first groove 7, the second friction member 6 and the second groove 8 may be arranged in such a manner that the length of the first groove 7 is equal to that of the first friction member 5, and the length of the second groove 8 is greater than that of the second friction member 6; alternatively, the length of the first groove 7 is greater than that of the first friction member 5, and the length of the second groove 8 is equal to that of the second friction member 6, both of which can achieve the purpose of the present invention, and the detailed description of the embodiment is omitted.
Furthermore, a connecting piece 9 is arranged between the sliding piece 15 and the piston 3, one end of the connecting piece 9 is connected with the sliding piece 15, the other end of the connecting piece 9 is connected with one end of the piston 3 inserted into the sleeve 4, and the connecting piece 9 is movably arranged relative to the piston 3 and/or the sliding piece 15. The connecting element 9 is arranged movably relative to the piston 3 and/or the sliding element 15, so that the sliding element 15 and the sleeve 4 are in a relatively static state in the case of small vibration, the second friction element 6 is not in use, and in the case of large vibration, the piston 3 moves to the position of the sliding element 15 and pushes the sliding element 15 to move or drives the sliding element 15 to move through the connecting element 9, and at the same time, the first friction element 5 and the second friction element 6 generate friction force simultaneously, and damping force is generated between the connecting element 9 and the piston 3 and/or between the connecting element 9 and the sliding block and the damping effect is improved.
Further, the piston 3 has a cavity 13 therein, and one end of the connecting member 9 is inserted into the cavity 13 and can reciprocate in the cavity 13, and the minimum size of the cavity 13 is the farthest position where the connecting member 9 can extend into the piston 3. One end of the connecting piece 9 inserted into the cavity 13 is provided with a first stopping portion 10 so as to prevent the connecting piece 9 from being separated from the cavity 13, and the other end of the connecting piece 9 is fixedly connected with a sliding piece 15, wherein the fixing mode is that the connecting piece 9 and the sliding piece 15 are integrally injection-molded or fixed in a mode of matching threads 14.
Further, a cavity 13 is formed in the piston 3, one end of the connecting member 9 is inserted into the cavity 13 and can reciprocate in the cavity 13, a first stopping portion 10 is arranged at one end of the connecting member 9 inserted into the cavity 13 so as to prevent the connecting member 9 from being separated from the cavity 13, a second stopping portion 11 is arranged at one end of the connecting member 9 far away from the cavity 13, the sliding member 15 is arranged between the piston 3 and the second stopping portion 11 so as to prevent the connecting member 9 from being separated from the sliding member 15, and the sliding member 15 can reciprocate along the connecting member 9.
Further, the inserting end of the cavity 13 is provided with a stop block 12, the stop block 12 can be integrally formed with the piston 3 or can be detachably arranged, the stop block 12 and the piston 3 are preferably detachably arranged, so that the manufacturing and production are convenient, and the stop block 12 is preferably a clamp spring similar piece convenient to install. A hole for inserting the connecting piece 9 is formed in the stopper 12, the connecting piece 9 is connected with the piston 3 through the hole, and the first stopper 10 is disposed in the cavity 13 and is stopped by the stopper 12, so that the first stopper 10 is prevented from being separated from the cavity 13.
Furthermore, one end of the connecting piece 9 is fixedly connected with the piston 3, and the fixing mode is that the connecting piece 9 and the piston 3 are integrally injection-molded or fixed in a mode of matching threads 14. The end of the connecting element 9 remote from the piston 3 is provided with a second stop 11 to prevent the connecting element 9 from disengaging from a sliding element 15, the sliding element 15 being arranged between the piston 3 and the second stop 11 and being reciprocally movable along the connecting element 9.
In addition, the connecting rod can be arranged in a mode that a cavity 13 is arranged in the piston 3, the connecting piece 9 is a connecting piece 9, one end of the connecting piece 9 is inserted into the cavity 13 and can reciprocate in the cavity 13, a first stopping part 10 is arranged at one end of the connecting piece 9 inserted into the cavity 13, and the other end of the connecting piece 9 is fixedly connected with the sliding piece 15.
Further, the connecting piece 9 is a connecting piece 9, one end of the connecting piece 9 is fixedly connected with the piston 3, and the fixing mode is that the connecting piece 9 and the piston 3 are integrally injection-molded or fixed in a mode of matching threads 14, preferably fixed in a mode of matching threads 14. The sliding part 15 is inserted into the other end of the connecting part 9 and can reciprocate along the connecting part 9, and a second stopping part 11 is arranged at one end of the connecting part 9 inserted into the sliding part 15.
As shown in fig. 2-4, a stopper 12 is disposed at the insertion end of the cavity 13, the stopper 12 may be integrally formed with the piston 3, and may be detachably disposed, and preferably, the stopper 12 is detachably disposed between the piston 3 and the stopper 12, so as to facilitate manufacturing and production, and the stopper 12 is preferably a snap spring similar member for facilitating installation. A hole for inserting the connecting piece 9 is arranged on the stop 12, the connecting piece 9 is connected with the piston 3 through the hole, and the first stopping part 10 is arranged in the cavity 13 and is stopped by the stop 12, so that the first stopping part 10 is prevented from being separated from the cavity 13.
The invention also provides a washing machine, which comprises a shell, an outer barrel and a damper, wherein one end of the damper is connected with the shell, and the other end of the damper is connected with the outer barrel, the damper comprises a sleeve 4 and a piston 3, one end of the piston 3 is inserted into the sleeve 4, a sliding part 15 is arranged in the sleeve 4, a first friction part 5 is arranged between the sleeve 4 and the piston 3, a second friction part 6 is arranged between the sleeve 4 and the sliding part 15, and the first friction part 5 generates friction force independently in the moving process of the piston 3 relative to the sleeve 4 or the first friction part 5 and the second friction part 6 generate friction force simultaneously in the moving process of the piston 3 linked with the sliding part 15 relative to the sleeve 4 so as to absorb the vibration transmitted to the sleeve 4 or the.
The principle of damping will be explained in detail below for the shock absorber shown in fig. 2-4.
As shown in fig. 2: the first groove 7 is arranged on the inner wall of the sleeve 4, the length of the first groove 7 is equal to that of the first friction piece 5, the second groove 8 is arranged on the outer surface of the sliding piece 15, and the length of the second groove 8 is equal to that of the second friction piece 6. When the washing machine is in a low vibration state, the sliding part 15 and the sleeve 4 are relatively static, the second friction part 6 does not work, the piston 3 reciprocates in the sleeve 4, and the vibration is absorbed mainly by the friction force generated by the first friction part 5. When the washing machine is in a large vibration state, the piston 3 moves to the sliding part 15 and pushes the sliding part 15 to move along the inner wall of the sleeve 4, after the piston 3 moves to the maximum stroke, the piston 3 pulls the sliding part 15 to move in the opposite direction through the connecting part 9, and in the process, the second friction part 6 between the sliding part 15 and the inner wall of the sleeve 4 and the first friction part 5 between the piston 3 and the sleeve 4 generate friction force simultaneously to absorb the vibration.
As shown in fig. 3 and 4: the first groove 7 is arranged on the inner wall of the sleeve 4, the length of the first groove 7 is larger than that of the first friction piece 5, the first friction piece 5 can move in the first groove 7 in a reciprocating way, the second groove 8 is arranged on the outer surface of the sliding piece 15, and the length of the second groove 8 is greater than that of the second friction member 6, the second friction member 6 can be reciprocally moved in the second groove 8, when the washing machine is in a high-frequency rotating speed state, the vibration of the washing machine is small at the moment, the sliding part 15 is static relative to the sleeve 4, the second friction part 6 does not generate friction force, the piston 3 reciprocates in the sleeve 4, the first friction part 5 reciprocates in the first groove 7 at the moment, and the first friction member 5 and the piston 3 are relatively static, the first friction member 5 does not generate friction force, and at the moment, the friction force passes between the piston 3 and the sleeve 4, and a small amount of damping force generated between the piston 3 and the connecting member 9 and/or between the connecting member 9 and the slider 15 to absorb shock; when the washing machine is in a second-high-frequency rotating speed state, the piston 3 reciprocates in the sleeve 4, the first friction piece 5 reciprocates in the first groove 7, the first friction piece 5 and the piston 3 are relatively static, the first friction piece 5 generates no friction force, the sliding piece 15 moves relative to the sleeve 4, the second friction piece 6 reciprocates in the sleeve 4, the second friction piece 6 and the sleeve 4 are relatively static, the second friction piece 6 does not play a role, and the vibration is absorbed by a small amount of damping force generated between the piston 3 and the sleeve 4, between the sliding piece 15 and the sleeve 4, between the piston 3 and the connecting piece 9 and/or between the connecting piece 9 and the sliding piece 15; when the washing machine is in the low-frequency rotation speed, the piston 3 reciprocates in the sleeve 4, the first friction piece 5 moves to two ends of the first groove 7 and is blocked by two ends of the first groove 7, so that the first friction piece 5 moves relative to the piston 3, friction force is generated between the first friction piece 5 and the piston 3, and at the moment, vibration is absorbed mainly through the friction force generated by the first friction piece 5; when the washing machine is in a low-frequency rotating speed state, the piston 3 reciprocates in the sleeve 4, the piston 3 pushes the sliding piece 15 to move when the piston 3 moves to the position of the sliding piece 15, after the piston 3 moves to the maximum stroke, the piston 3 pulls the sliding piece 15 to move towards the opposite direction through the connecting piece 9, the second friction piece 6 moves in the second groove 8 and is in contact with the two ends of the second groove 8, the second friction piece 6 moves relative to the sleeve 4 at the moment, the second friction piece 6 generates friction force, and high-frequency vibration is absorbed mainly through the friction force generated by the first friction piece 5 and the second friction piece 6 at the moment.
Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. A shock absorber of a washing machine comprises a sleeve and a piston with one end inserted into the sleeve, and is characterized in that a sliding part is arranged in the sleeve, a first friction piece is arranged between the sleeve and the piston, a second friction piece is arranged between the sleeve and the sliding part, and friction force is generated by one or both of the first friction piece and the second friction piece to absorb shock transmitted to the sleeve or the sliding part in the process that the piston moves relative to the sleeve.
2. The damper for washing machine according to claim 1, wherein the piston is movably disposed with respect to the inner wall of the sleeve, and the first friction member is disposed on the inner wall of the sleeve and/or the outer wall of the piston, and the vibration transmitted to the sleeve is absorbed by the friction force generated by the first friction member during the movement of the piston with respect to the sleeve.
3. The washing machine shock absorber according to claim 2, wherein the piston inner wall and/or the sleeve outer wall is provided with a first groove, and the first friction member is provided in the first groove;
preferably, the first groove is long and is arranged on the inner wall of the sleeve and/or the outer wall of the piston along the length direction of the sleeve, the first friction piece is arranged in the first groove, and the length of the first groove is greater than or equal to that of the first friction piece;
more preferably, the length of the first groove is greater than the length of the first friction member, and the first friction member is movably disposed in the first groove.
4. The damper according to any one of claims 1 to 3, wherein the sliding member is movably disposed with respect to the inner wall of the sleeve, the second friction member is disposed on the outer wall of the sliding member/the inner wall of the sleeve, and the first friction member and the second friction member simultaneously generate a frictional force to absorb the shock transmitted to the sliding member during the movement of the piston-linked sliding member with respect to the sleeve.
5. The washing machine damper according to claim 4, wherein a second groove is provided on an outer wall of the sliding member, and the second friction member is provided in the second groove;
preferably, the second groove is long and is arranged on the outer wall of the sliding part along the length direction of the sleeve, the second friction piece is arranged in the second groove, and the length of the second groove is greater than or equal to that of the second friction piece;
more preferably, the length of the second groove is greater than the length of a second friction member, and the second friction member is movably arranged in the second groove.
6. A washing machine damper according to claim 1 or 5 in which a link is provided between the slider and the piston, one end of the link being connected to the slider and the other end of the link being connected to one end of the piston insertion sleeve, the link being movably disposed relative to the piston and/or slider.
7. The damper for washing machine according to claim 6, wherein the piston has a cavity therein, one end of the link member is inserted into the cavity and reciprocally moves in the cavity, one end of the link member inserted into the cavity is provided with a first stopper, and the other end of the link member is fixedly connected to the sliding member.
8. The damper for washing machine according to claim 6, wherein the piston has a cavity therein, one end of the connecting member is inserted into the cavity and is reciprocatingly movable in the cavity, one end of the connecting member inserted into the cavity is provided with a first stopper, one end of the connecting member away from the cavity is provided with a second stopper, and the sliding member is disposed between the piston and the second stopper and is reciprocatingly movable along the connecting member.
9. The damper for washing machine as claimed in claim 6, wherein one end of the link is fixedly connected to the piston, one end of the link away from the piston is provided with a second stopper, and the sliding member is disposed between the piston and the second stopper and is reciprocatingly movable along the link.
10. The utility model provides a washing machine, includes casing, outer bucket to and the bumper shock absorber of outer bucket is connected to casing one end is connected to one end, its characterized in that, the bumper shock absorber includes that sleeve and one end insert telescopic piston, set up the slider in the sleeve, set up first friction spare between sleeve and the piston, set up the second friction spare between sleeve and the slider, first friction spare produces frictional force alone or piston linkage slider relatively sleeve removal in-process first friction spare and second friction spare produce frictional force simultaneously in order to absorb the vibrations of transmitting to sleeve or slider relatively to the sleeve.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811144796.2A CN110965268B (en) | 2018-09-29 | 2018-09-29 | Washing machine shock absorber and washing machine |
| PCT/CN2019/105580 WO2020063361A1 (en) | 2018-09-29 | 2019-09-12 | Shock absorber for washing machine and washing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811144796.2A CN110965268B (en) | 2018-09-29 | 2018-09-29 | Washing machine shock absorber and washing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110965268A true CN110965268A (en) | 2020-04-07 |
| CN110965268B CN110965268B (en) | 2022-05-13 |
Family
ID=70027199
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811144796.2A Active CN110965268B (en) | 2018-09-29 | 2018-09-29 | Washing machine shock absorber and washing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110965268B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2349232Y (en) * | 1998-10-12 | 1999-11-17 | 济南灯饰总公司 | Shock damper |
| CN1621599A (en) * | 2003-05-13 | 2005-06-01 | Lg电子株式会社 | Damper for washing machine |
| KR20050050906A (en) * | 2003-11-26 | 2005-06-01 | 엘지전자 주식회사 | Multiple damping device for washer |
| CN1661260A (en) * | 2004-02-23 | 2005-08-31 | Lg电子株式会社 | Washer, damper thereof, and control method thereof |
| CN1724753A (en) * | 2004-07-19 | 2006-01-25 | 乐金电子(天津)电器有限公司 | Duplex shock absorption device of laundry machine |
| CN1730781A (en) * | 2004-08-06 | 2006-02-08 | 乐金电子(天津)电器有限公司 | Multiple vibration damper for washing machine |
| KR20080037424A (en) * | 2006-10-26 | 2008-04-30 | 삼성전자주식회사 | Drum type washing machine |
| CN104099752A (en) * | 2013-04-09 | 2014-10-15 | 苏州三星电子有限公司 | Damping force-variable vibration damper for washing machine |
| CN105986407A (en) * | 2015-01-29 | 2016-10-05 | 青岛海尔洗衣机有限公司 | Shock absorber, washing machine and clothes dryer |
| CN106195089A (en) * | 2015-04-30 | 2016-12-07 | 青岛海尔洗衣机有限公司 | A kind of variable-damp vibration damper and washing machine |
-
2018
- 2018-09-29 CN CN201811144796.2A patent/CN110965268B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2349232Y (en) * | 1998-10-12 | 1999-11-17 | 济南灯饰总公司 | Shock damper |
| CN1621599A (en) * | 2003-05-13 | 2005-06-01 | Lg电子株式会社 | Damper for washing machine |
| KR20050050906A (en) * | 2003-11-26 | 2005-06-01 | 엘지전자 주식회사 | Multiple damping device for washer |
| CN1661260A (en) * | 2004-02-23 | 2005-08-31 | Lg电子株式会社 | Washer, damper thereof, and control method thereof |
| CN1724753A (en) * | 2004-07-19 | 2006-01-25 | 乐金电子(天津)电器有限公司 | Duplex shock absorption device of laundry machine |
| CN1730781A (en) * | 2004-08-06 | 2006-02-08 | 乐金电子(天津)电器有限公司 | Multiple vibration damper for washing machine |
| KR20080037424A (en) * | 2006-10-26 | 2008-04-30 | 삼성전자주식회사 | Drum type washing machine |
| CN104099752A (en) * | 2013-04-09 | 2014-10-15 | 苏州三星电子有限公司 | Damping force-variable vibration damper for washing machine |
| CN105986407A (en) * | 2015-01-29 | 2016-10-05 | 青岛海尔洗衣机有限公司 | Shock absorber, washing machine and clothes dryer |
| CN106195089A (en) * | 2015-04-30 | 2016-12-07 | 青岛海尔洗衣机有限公司 | A kind of variable-damp vibration damper and washing machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110965268B (en) | 2022-05-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7472567B2 (en) | Damper for washing machine | |
| EP1455011B1 (en) | Combination type damper and washing machine having the same | |
| US20060011429A1 (en) | Damper for damping vibration and washing machine having the same | |
| KR100565659B1 (en) | damping apparatus and the controlling method in the washing machine | |
| CN105986407B (en) | Shock absorber, washing machine and clothes dryer | |
| US10288140B2 (en) | Variable damping shock absorber | |
| US11300074B2 (en) | Vibration isolation structure of linear oscillatory motor and stirling engine | |
| US20040148976A1 (en) | Damper of drum type washing machine | |
| CN110965268B (en) | Washing machine shock absorber and washing machine | |
| CN110965267B (en) | Washing machine shock absorber and washing machine | |
| CN110965269B (en) | Washing machine shock absorber and washing machine | |
| KR101377150B1 (en) | washing machine | |
| CN107151894B (en) | A bumper shock absorber and washing machine for washing machine | |
| RU2507456C2 (en) | Refrigerating compressor | |
| WO2020063361A1 (en) | Shock absorber for washing machine and washing machine | |
| US20160208881A1 (en) | Shock Absorber Having An Improved Friction Element | |
| KR101412584B1 (en) | Reciprocating compressor | |
| CN211772136U (en) | Washing machine shock absorber | |
| JP4791981B2 (en) | Drum washing machine | |
| CN111101337A (en) | Washing machine | |
| CN219470470U (en) | Shock-absorbing structure and washing machine | |
| KR101178579B1 (en) | Suspension damper having magnet for drum washing machine | |
| CN112391798B (en) | Vibration damper and washing machine with same | |
| CN217536409U (en) | Vibration reduction assembly, friction type suspender and washing machine | |
| CN111118826A (en) | Washing machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20220419 Address after: 266101 Haier Industrial Park, 1 Haier Road, Laoshan District, Shandong, Qingdao Applicant after: QINGDAO HAIER WASHING MACHINE 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 WASHING MACHINE Co.,Ltd. |
|
| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |