CN107151894A - A kind of damper and washing machine for washing machine - Google Patents
A kind of damper and washing machine for washing machine Download PDFInfo
- Publication number
- CN107151894A CN107151894A CN201610115465.0A CN201610115465A CN107151894A CN 107151894 A CN107151894 A CN 107151894A CN 201610115465 A CN201610115465 A CN 201610115465A CN 107151894 A CN107151894 A CN 107151894A
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- surge chamber
- gas surge
- gas
- piston structure
- damper
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- 238000005406 washing Methods 0.000 title claims abstract description 58
- 238000013016 damping Methods 0.000 claims abstract description 29
- 238000006243 chemical reaction Methods 0.000 claims abstract description 12
- 238000007789 sealing Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 8
- 230000009467 reduction Effects 0.000 abstract description 8
- 238000011176 pooling Methods 0.000 abstract description 4
- 239000007789 gas Substances 0.000 description 171
- 230000006835 compression Effects 0.000 description 10
- 238000007906 compression Methods 0.000 description 10
- 230000018044 dehydration Effects 0.000 description 9
- 238000006297 dehydration reaction Methods 0.000 description 9
- 238000003780 insertion Methods 0.000 description 4
- 230000037431 insertion Effects 0.000 description 4
- 239000006096 absorbing agent Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000007634 remodeling Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
- D06F37/20—Mountings, e.g. resilient mountings, for the rotary receptacle, motor, tub or casing; Preventing or damping vibrations
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
Abstract
The invention provides a kind of damper and washing machine for washing machine, including pilot sleeve and piston structure, one end of the piston structure is inserted in the pilot sleeve, the pilot sleeve and piston structure surround and form first gas surge chamber, the damper also includes the second gas surge chamber being connected with the first gas surge chamber, provided with the check valve sheet that can be opened to second gas surge chamber direction between the first gas surge chamber and second gas surge chamber.By setting the first gas surge chamber and second gas surge chamber that are connected, and check valve sheet is set, increases the pooling feature of damper, reduction vibrations；And cause the gas in second gas surge chamber that there is reaction force for piston structure, offset the power in partial plunger structure compresses direction, be conducive to slowing down the motion amplitude of piston structure；By setting two gas buffer rooms, more vibration energy can be consumed, damping noise reduction effect is reached.
Description
Technical field
The invention belongs to washing machine and its accessory technical field, and in particular to a kind of damper for washing machine and the washing machine with the damper.
Background technology
Existing roller washing machine includes being formed the casing of outward appearance, be arranged on be used in the casing depositing the outer barrel of slurry and be rotatably sleeved in the outer barrel and for clothing is washed and dehydrating operations roller, the motor for driving roller rotation is fixed with behind outer barrel；Connected between outer barrel and casing by damper, the vibrations for suppressing outer barrel, shock absorber can absorb and eliminate vibration, prevent casing from creeping, reduce noise, be the important device for ensureing washing machine performance and extension washing machine life-span.
From the point of view of the whole laundry processes of washing machine, vibration washing, rinse, be dehydrated each stage and can all produce.In roller rotating process, because the unbalance loading that the uneven distribution after clothes washing is caused will be produced, vibrations are caused to increase；Especially in dehydration, because rotation speed change is larger, so that working frequency is also in interior change in a big way, for example the rotating speed of laundry drum machine cylinder is by 0 to 1600r/min, i.e. working frequency changes between 0-27Hz, the intrinsic frequency of roller washing machine is about 2HZ or so, and is slightly raised within the specific limits with the progress of clothes dewatering.Namely in dehydration, the intrinsic frequency of washing machine is located in the excursion of working frequency, and when working frequency is equal or close to intrinsic frequency, the amplitude and vibration intensity of washing machine can be increased.
Existing damper of rotating drum washing machine is as shown in figure 1, generally plunger type damper（Or piston damper）, including damping pilot sleeve 01, plunger 02, friction plate 03（Or frictional damping ring）And lubricant grease.The blow vent 011 being in communication with the outside is offered on damping pilot sleeve 01, one end of damping pilot sleeve 01 is connected with washing machine outer barrel, and the other end is provided with opening；In one end insertion damping pilot sleeve 01 of plunger 02, the other end of plunger 02 is connected on the casing of washing machine.What the damping force produced during existing damper work was leaned on is exactly the frictional force between plunger 02 and damping pilot sleeve 01 and friction plate 03；Existing washing machine vibration absorber is main against frictional force, and vibrational energy during buffering and consume washing of drum type washing machine, dehydration, effectiveness in vibration suppression is bad, causes washing machine when washing clothing, vibrates larger；Especially in dehydration, it may appear that violent vibration simultaneously supervenes loud noise.
The content of the invention
The present invention provides a kind of damper for washing machine, and the more preferable damping noise reduction effect when washing machine shakes larger is realized in increase gas buffer room.
To reach above-mentioned technical purpose, the present invention is realized using following technical scheme：
A kind of damper for washing machine, including pilot sleeve and piston structure, one end of the piston structure are inserted in the pilot sleeve, and the pilot sleeve and piston structure surround and form first gas surge chamber；The damper also includes the second gas surge chamber being connected with the first gas surge chamber, provided with the check valve sheet that can be opened to second gas surge chamber direction between the first gas surge chamber and second gas surge chamber.
Further, when the shaking force that the damper is subject to is larger, the piston structure moves back and forth speed increase in the pilot sleeve, so that the gas pressure increase in the first gas surge chamber, it is enough to push the check valve sheet open, so that the portion gas in the first gas surge chamber enters in the second gas surge chamber, and the reaction force that the piston structure is also given by the gas in the second gas surge chamber.
Further, the damper also includes damping spring, and one end of the damping spring is located on the pilot sleeve, and the other end is located on the piston structure.
Further, valve block spring is provided with the second gas surge chamber, the valve block spring applies the power of closing direction to the check valve sheet.
Further, the valve block spring is cylindricality or taper.
Further, provided with the guide frame that the check valve sheet is moved that is used for being mutually matched between check valve sheet and the second gas surge chamber.
Further, the guide frame is the lead being located on one of the check valve sheet and second gas surge chamber and is located at the check valve sheet and second gas surge chamber another upper guide groove matched with the lead, and the lead is in guide groove.
Further, the lead or guide groove are two or more, and more than two leads or guide groove be circumferentially uniformly distributed.
Further, the second gas surge chamber has the first roof abutted with the gas buffer room and the bottom wall being be arranged in parallel with the roof and the perisporium for being tightly connected the roof and bottom wall, the through hole being connected with first gas surge chamber, the check valve sheet sealing through hole to be opened/closed are offered on the roof.
Further, the valve block spring is located between the check valve sheet and bottom wall.
Further, the second gas surge chamber is provided with the relief hole being connected with the external world.
Further, the relief hole is provided with relief valve.
Further, the piston structure includes the plunger body of the tubular coordinated with the pilot sleeve, the first fixing end abutted with the adjacent second gas surge chamber of the plunger body and with the second gas surge chamber.
Further, the bottom of the plunger body offers the through hole being connected with the second gas surge chamber.
Further, friction plate is provided between the pilot sleeve and piston structure.
Based on the above-mentioned damper for washing machine, the present invention also provides a kind of washing machine, with above-mentioned damper, for improving violent vibration during laundry dehydration and the problem of supervene loud noise.
A kind of washing machine, includes the above-mentioned damper of casing, the outer barrel that is arranged in casing and the connection casing and outer barrel.
Further, the pilot sleeve is hinged with the outer barrel, and the piston structure is hinged with the casing.
Provided by the present invention for the damper of washing machine, by setting the first gas surge chamber and second gas surge chamber that are connected, and check valve sheet is set between first gas surge chamber and second gas surge chamber, so that when damper is by larger shaking force, it is larger that the piston structure moves back and forth speed in pilot sleeve, during the piston structure compression, the pressure of gas in the first gas surge chamber is enough to push check valve sheet open, so that the portion gas in first gas surge chamber enters second gas surge chamber, increase the pooling feature of damper, reduction vibrations；And cause the increase of the gas pressure in second gas surge chamber and there is reaction force for piston structure, offset the power in partial plunger structure compresses direction, be conducive to slowing down the motion amplitude of piston structure；So by setting two gas buffer rooms, more vibration energy can be consumed, damping noise reduction effect is reached.When damper is by less shaking force, the piston structure is moved back and forth in pilot sleeve, and the piston structure compresses the gas pressure that the first gas surge chamber is produced, it is impossible to push check valve sheet open；Namely when damper is by less shaking force, second gas surge chamber is not involved in damping work.
After the embodiment that the present invention is read in conjunction with the figure, the other features and advantages of the invention will become clearer.
Brief description of the drawings
Fig. 1 is the structural representation of washing machine vibration absorber in the prior art；
Fig. 2 is the structural representation of one embodiment of the damper for washing machine proposed by the invention；
Fig. 3 be in Fig. 2 A-A to cross section structure diagram；
Fig. 4 is the mplifying structure schematic diagram of piston structure in Fig. 2；
Fig. 5 is the structural representation of second embodiment of the damper for washing machine proposed by the invention；
Fig. 6 is the mplifying structure schematic diagram in B regions in Fig. 5.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described.
In the description of the invention, it should be noted that, the orientation or position relationship of the instructions such as term "left", "right" are based on position relationship shown in the drawings, it is for only for ease of the description present invention and simplifies description, rather than indicate or imply that the device or element of meaning must have specific orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.In addition, term " first ", " second " are only used for describing purpose, and it is not intended that indicating or implying relative importance.
Refering to Fig. 2-Fig. 4, it is one embodiment of the damper for washing machine proposed by the invention, damper is arranged between the casing of washing machine and outer barrel, vibrations and reduction noise for suppressing outer barrel, and washing machine can be roller washing machine or other kinds of washing machine.In the present embodiment, damper is included in pilot sleeve 1 and piston structure 2, and one end insertion pilot sleeve 1 of piston structure 2；So pilot sleeve 1 and piston structure 2 are around first gas surge chamber 4 is formed, when piston structure 2 is moved in pilot sleeve 1, the gas in the compression first gas of piston structure 2 surge chamber 4.Damper is additionally provided with second gas surge chamber 5, wherein second gas surge chamber 5 is connected with first gas surge chamber 4, and check valve sheet 6 is provided between first gas surge chamber 4 and second gas surge chamber 5, check valve sheet 6 can only be opened to the direction of second gas surge chamber 5.Namely when piston structure 2 compresses the gas in first gas surge chamber 4 so that when the gas pressure in first gas surge chamber 4 is sufficiently large, check valve sheet 6 is pushed open, the portion gas in first gas surge chamber 4 is set to enter in second gas surge chamber 5.
In the washing process of washing machine, especially in dehydration, the vibrations of outer barrel are larger, the shaking force that namely damper is subject to is larger, shaking force is delivered on damper, so that the reciprocating motion speed in pilot sleeve 1 of piston structure 2 is larger, gas in the compression first gas of piston structure 2 surge chamber 4, when piston structure 2 moves right in namely illustrating, so that the gas pressure in first gas surge chamber 4 is enough to push check valve sheet 6 open, now the portion gas in first gas surge chamber 4 enters second gas surge chamber 5, gas pressure in first gas surge chamber 4 reduces, piston structure 2 is allowd to continue compression movement, so that the energy of vibrations is further consumed, increase the pooling feature of damper, reduce the vibrations of washing machine；And the portion gas in first gas surge chamber 4 enters second gas surge chamber 5, so that the gas pressure increase in second gas surge chamber 5, thus second gas surge chamber 5 has certain reaction force for piston structure 2, the power of left direction in namely illustrating, the power for the compression direction that partial plunger structure 2 is subject to is offset, is conducive to slowing down the motion amplitude of piston structure 2；And during 2 reseting movement of piston structure, check valve sheet 6 is closed so that second gas surge chamber 5 disappears for the reaction force of piston structure 2, it is to avoid reaction force is promoted for the 3 of the reseting movement of piston structure 2, further reaches damping effect.So by setting two gas buffer rooms, more vibration energy can be consumed, damping noise reduction effect is reached.
Washing machine is during washing, rinsing, and rotating speed is all in below 60r/min, and working frequency is in 1HZ or so, that is, working frequency is all in the intrinsic frequency of washing machine（2HZ or so）Below；Thus washing machine vibrates smaller during washing, rinsing, and the reciprocating motion speed of piston structure 2 is also smaller, the gas pressure that now the compression first gas of piston structure 2 surge chamber 4 is produced, it is impossible to push check valve sheet 6 open；Namely when damper is by less shaking force, damper relies primarily in the frictional force and first gas surge chamber of the friction plate generation between piston structure 2 and pilot sleeve 14 air damping damping, and second gas surge chamber 5 is not involved in damping.
Washing machine is during dehydration, and inner cylinder rotating speed will have 0r/min to step up to 1600r/min, and dehydration is completed, inner cylinder rotating speed will have 1600r/min to gradually reduce to 0r/min, working frequency changes in 1~27HZ or so, and working frequency will all pass through intrinsic frequency so that the vibration of washing machine is especially big；Now when the gas pressure in first gas surge chamber 4 reaches certain numerical value, check valve sheet 6 will be open so that first gas surge chamber 4 and second gas surge chamber 5, which coordinate, plays more preferable damping effect.
In the present embodiment, referring to shown in Fig. 2 and Fig. 3, pilot sleeve 1 is the annular seal space with one end open, openend is used for the insertion of piston structure 2, that is, first gas surge chamber 4 is by pressure release between pilot sleeve 1 and piston structure 2 and by pushing check valve sheet 6 open to the pressure release of second gas surge chamber 5.
Referring to shown in Fig. 3 and Fig. 4, second gas surge chamber 5 is provided with the relief hole 51 being connected with the external world, the gas in first gas surge chamber 4 is so caused to enter second gas surge chamber 5, after pressure increase in second gas surge chamber 5, pass through the pressure release of relief hole 51 so that the pressure in second gas surge chamber 5 recovers.And when the reciprocating frequency of piston structure 2 is all higher, when the pressure in second gas surge chamber 5 is had not been completed by the pressure release of relief hole 51, that is, pressure in second gas surge chamber 5 is also not reduced to home state；Piston structure 2 compresses motion again, now also to can just push check valve sheet 6 open in requisition for the gas pressure in first gas surge chamber 4 is slightly higher；And check valve sheet 6 is pushed rear second gas surge chamber 5 open and also increased for the reaction of piston structure 2, during so that the reciprocating frequency of piston structure 2 is different, first gas surge chamber 4 and second gas surge chamber 5 can automatically adjust the damping for piston structure 2, or perhaps resistance.
Referring to shown in Fig. 2 and Fig. 3, in order to further increase the shock-absorbing function of damper, it is to avoid the excessive failure of damper motion amplitude, damper also includes damping spring 7, one end of damping spring 7 is located on pilot sleeve 1, the other end is located on piston structure 2, damper damping spring 7；Namely when damper is given a shock power so that piston structure 2 compresses or extensional motion, damping spring 7 is compressed or elongated, and damping spring 7 gives the opposite direction power of the motion of piston structure 2, suppresses the significantly vibrations of piston structure 2.
In the present embodiment, referring to valve block spring 8 shown in Fig. 2 and Fig. 3, is provided with second gas surge chamber 5, valve block spring 8 applies the power of closing direction to check valve sheet 6.By setting valve block spring 8 so that check valve sheet 6 automatically resets under the promotion of valve block spring 8.When the gas pressure in first gas surge chamber 4 reach gas pressure and valve block spring 8 in second gas surge chamber 5 for the pulling force of check valve sheet 6 and when, check valve sheet 6 will be open.Valve block spring 8 is cylindrical spring.
In the present embodiment, referring to shown in Fig. 4-Fig. 6, second gas surge chamber 5 has the roof 52 adjacent with first gas surge chamber 4 and the bottom wall 53 being be arranged in parallel with roof 52 and the perisporium 54 for being tightly connected roof 52 and bottom wall 53, the through hole 9 being connected with first gas surge chamber 4, the sealing through hole 9 to be opened/closed of check valve sheet 6 are offered on roof 52.Valve block spring 8 is arranged between bottom wall 53 and check valve sheet 6, so check valve sheet 6 is when being open, and check valve sheet 6 is overall to be moved to the inner side direction of second gas surge chamber 5, or perhaps direction movement of performing fighting, when check valve sheet 6 is closed, check valve sheet 6 is overall to the movement of closing direction.So to enter between the gas flowing through one-way valve piece 6 of second gas surge chamber 5 and the inner side of roof 52 from first gas surge chamber 4 and enter second gas surge chamber 5, avoid causing the pressure in second gas surge chamber 5 everywhere unbalanced, also cause second gas surge chamber 5 gas for the reaction force of piston structure 2 direction in the direction of motion of piston structure 2.
In the present embodiment, referring to shown in Fig. 2-Fig. 4, piston structure 2 includes the plunger body 21 of the tubular coordinated with pilot sleeve 1, the first fixing end 22 abutted with the adjacent second gas surge chamber 5 of plunger body 21 and with second gas surge chamber 5.Second gas surge chamber 5 is to be surrounded to form by roof 52, bottom wall 53 and perisporium 54.Namely second gas surge chamber 5 is located between plunger body 21 and fixing end 22 so that second gas surge chamber 5 is conducive to the stability of the Impact direction of second gas surge chamber 5 in the direction of motion of plunger body 21.The left end of pilot sleeve 1 is provided with the second fixing end 11, the present embodiment, and the first fixing end 22 is hinged on the casing of washing machine, and the second fixing end 11 is hinged on outer barrel.
Relative to the axis of piston structure 2 on the bottom wall 53 of second gas surge chamber 5, symmetrically offer at least two relief holes 5, when so avoiding 5 pressure release of relief hole as far as possible, the disorder for causing the gas in second gas surge chamber 5 to flow so that the pressure in second gas surge chamber 5 is unbalanced.
In other embodiment, relief valve can also be provided with relief hole 51, for controlling the minimum pressure in second gas surge chamber 5.
It is second embodiment of the damper for washing machine proposed by the invention, this implementation and the main distinction of one embodiment are refering to Fig. 5 and Fig. 6：Part in second gas surge chamber sets different, and other structures can be used and one embodiment identical structure.
In the present embodiment, damper is included in pilot sleeve 1 and piston structure 2, and one end insertion pilot sleeve 1 of piston structure 2；So pilot sleeve 1 and piston structure 2 are around first gas surge chamber 4 is formed, when piston structure 2 is moved in pilot sleeve 1, the gas in the compression first gas of piston structure 2 surge chamber 4.Damper is additionally provided with second gas surge chamber 5, wherein second gas surge chamber 5 is connected with first gas surge chamber 4, and check valve sheet 6 is provided between first gas surge chamber 4 and second gas surge chamber 5, check valve sheet 6 can only be opened to the direction of second gas surge chamber 5.Namely when piston structure 2 compresses the gas in first gas surge chamber 4 so that when the gas pressure in first gas surge chamber 4 is sufficiently large, check valve sheet 6 is pushed open, the portion gas in first gas surge chamber 4 is set to enter in second gas surge chamber 5.
In the washing process of washing machine, especially in dehydration, the vibrations of outer barrel are larger, the shaking force that namely damper is subject to is larger, shaking force is delivered on damper, so that the reciprocating motion speed in pilot sleeve 1 of piston structure 2 is larger, gas in the compression first gas of piston structure 2 surge chamber 4, when piston structure 2 moves right in namely illustrating, so that the gas pressure in first gas surge chamber 4 is enough to push check valve sheet 6 open, now the portion gas in first gas surge chamber 4 enters second gas surge chamber 5, gas pressure in first gas surge chamber 4 reduces, piston structure 2 is allowd to continue compression movement, so that the energy of vibrations is further consumed, increase the pooling feature of damper, reduce the vibrations of washing machine；And the portion gas in first gas surge chamber 4 enters second gas surge chamber 5, so that the gas pressure increase in second gas surge chamber 5, thus the gases at high pressure in second gas surge chamber 5 have certain reaction force for piston structure 2, the power of left direction in namely illustrating, the power for the compression direction that partial plunger structure 2 is subject to is offset, is conducive to slowing down the motion amplitude of piston structure 2；And during 2 reseting movement of piston structure, check valve sheet 6 is closed so that gases at high pressure in second gas surge chamber 5 disappear for the reaction force of piston structure 2, it is to avoid reaction force is promoted for the 3 of the reseting movement of piston structure 2, further reaches damping effect.So by setting two gas buffer rooms and valve structure, more vibration energy can be consumed, damping noise reduction effect is reached.
It is shown in Figure 5, valve block spring 8 is provided with second gas surge chamber 5, valve block spring 8 applies the power of closing direction to check valve sheet 6.By setting valve block spring 8 so that check valve sheet 6 automatically resets under the promotion of valve block spring 8.When the gas pressure in first gas surge chamber 4 reach gas pressure and valve block spring 8 in second gas surge chamber 5 for the pulling force of check valve sheet 6 and when, check valve sheet 6 will be open.Valve block spring 8 is cylindrical spring.
In the present embodiment, it is shown in Figure 5, valve block spring 8 is taper, the bottom of taper is contacted with the bottom of second gas surge chamber 5, the top of taper is contacted with check valve sheet 6, so that the lifting surface area of the bottom of second gas surge chamber 5 is larger, and the bottom of preferred valve flat spring 8 is identical with the area of the bottom of second gas surge chamber 5, stabilization of the valve block spring 8 in second gas surge chamber 5, and increase valve block spring 8 is conducive to be supplied to the stabilization of the elastic force of check valve sheet 6.
For the direction of the opening and closing that ensure check valve sheet 6, guide frame is provided between check valve sheet 6 and second gas surge chamber 5, moved during the opening and closing of check valve sheet 6 along guide frame, it ensure that entirety when check valve sheet 6 is moved to the left or be moved rearwards by, and ensure that the seal after the closing of check valve sheet 6 between second gas surge chamber 5.
Shown in Figure 6 in the present embodiment, guide frame is the guide groove 61 being located in check valve sheet 6 and the lead 55 being correspondingly arranged on second gas surge chamber 5, and lead 55 passes through guide groove 61.Check valve sheet 6 is circle, more than two guide grooves 61 is set in check valve sheet 6, guide groove 61 is on the same circumference that the center of check valve sheet 6 is circular and is uniformly distributed.
The above described is only a preferred embodiment of the present invention, being not the limitation for making other forms to the present invention, any those skilled in the art are changed or are modified as the equivalent embodiment of equivalent variations possibly also with the technology contents of the disclosure above.But every without departing from technical solution of the present invention content, any simple modification, equivalent variations and remodeling that the technical spirit according to the present invention is made to above example, still fall within the protection domain of technical solution of the present invention.
Claims (10)
1. a kind of damper for washing machine, including pilot sleeve and piston structure, one end of the piston structure is inserted in the pilot sleeve, it is characterized in that, the pilot sleeve and piston structure surround and form first gas surge chamber, the damper also includes the second gas surge chamber being connected with the first gas surge chamber, provided with the check valve sheet that can be opened to second gas surge chamber direction between the first gas surge chamber and second gas surge chamber.
2. damper according to claim 1, it is characterized in that, when the shaking force that the damper is subject to is larger, the piston structure moves back and forth speed increase in the pilot sleeve, so that the gas pressure increase in the first gas surge chamber, it is enough to push the check valve sheet open so that the portion gas in the first gas surge chamber enters in the second gas surge chamber, and the reaction force that the piston structure is also given by the gas in the second gas surge chamber.
3. damper according to claim 1, it is characterised in that the damper also includes damping spring, one end of the damping spring is located on the pilot sleeve, and the other end is located on the piston structure.
4. damper according to claim 1, it is characterised in that valve block spring is provided with the second gas surge chamber, the valve block spring applies the power of closing direction to the check valve sheet.
5. the damper according to any one of Claims 1-4, it is characterised in that provided with the guide frame that the check valve sheet is moved that is used for being mutually matched between check valve sheet and the second gas surge chamber.
6. damper according to claim 5, it is characterized in that, the guide frame is the lead being located on one of the check valve sheet and second gas surge chamber and is located at the check valve sheet and second gas surge chamber another upper guide groove matched with the lead, and the lead is in guide groove.
7. the damper according to any one of Claims 1-4, it is characterized in that, the second gas surge chamber has the first roof abutted with the gas buffer room and the bottom wall being be arranged in parallel with the roof and the perisporium for being tightly connected the roof and bottom wall, the through hole being connected with first gas surge chamber, the check valve sheet sealing through hole to be opened/closed are offered on the roof.
8. the damper according to any one of Claims 1-4, it is characterised in that the second gas surge chamber is provided with the relief hole being connected with the external world.
9. the damper according to any one of Claims 1-4, characterized in that, the piston structure includes the plunger body of the tubular coordinated with the pilot sleeve, the first fixing end abutted with the adjacent second gas surge chamber of the plunger body and with the second gas surge chamber.
10. a kind of washing machine, it is characterised in that any one of claim 1 to 9 including casing, the outer barrel being arranged in casing and the connection casing and outer barrel damper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610115465.0A CN107151894B (en) | 2016-03-02 | 2016-03-02 | A bumper shock absorber and washing machine for washing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610115465.0A CN107151894B (en) | 2016-03-02 | 2016-03-02 | A bumper shock absorber and washing machine for washing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107151894A true CN107151894A (en) | 2017-09-12 |
| CN107151894B CN107151894B (en) | 2021-03-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610115465.0A Active CN107151894B (en) | 2016-03-02 | 2016-03-02 | A bumper shock absorber and washing machine for washing machine |
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| Country | Link |
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| CN (1) | CN107151894B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108589178A (en) * | 2018-05-21 | 2018-09-28 | 无锡小天鹅通用电器有限公司 | Damping device and device for clothing processing |
| WO2019206070A1 (en) * | 2018-04-28 | 2019-10-31 | 青岛海尔滚筒洗衣机有限公司 | Garment treatment apparatus |
| CN110499625A (en) * | 2019-07-09 | 2019-11-26 | Tcl家用电器（合肥）有限公司 | Washing tub and washing machine |
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| US1488197A (en) * | 1924-03-25 | And dahisl k | ||
| US4915364A (en) * | 1979-10-17 | 1990-04-10 | Roberto Perlini | Fluid suspension unit, particularly for heavy motor vehicles |
| CN1940336A (en) * | 2005-09-27 | 2007-04-04 | 斯塔比卢斯有限责任公司 | Spring system |
| KR20070064022A (en) * | 2005-12-16 | 2007-06-20 | 주식회사 대우일렉트로닉스 | Damper structure of drum type washing machine |
| CN101063472A (en) * | 2006-04-28 | 2007-10-31 | 王明根 | Novel buffering cylinder device |
| KR20110002450A (en) * | 2010-12-21 | 2011-01-07 | 주식회사 썬 프레인 코 | Variable valve type damper system |
| CN203560346U (en) * | 2013-09-25 | 2014-04-23 | 盐城市步高汽配制造有限公司 | Automobile auxiliary damping device |
| CN104315075A (en) * | 2014-10-01 | 2015-01-28 | 魏伯卿 | Reducing spring damper of cross-country vehicle |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2019206070A1 (en) * | 2018-04-28 | 2019-10-31 | 青岛海尔滚筒洗衣机有限公司 | Garment treatment apparatus |
| CN108589178A (en) * | 2018-05-21 | 2018-09-28 | 无锡小天鹅通用电器有限公司 | Damping device and device for clothing processing |
| CN108589178B (en) * | 2018-05-21 | 2021-02-05 | 无锡小天鹅电器有限公司 | Damping device and clothes treatment device |
| CN110499625A (en) * | 2019-07-09 | 2019-11-26 | Tcl家用电器（合肥）有限公司 | Washing tub and washing machine |
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Effective date of registration: 20210202 Address after: 266101 Haier Industrial Park, 1 Haier Road, Laoshan District, Shandong, Qingdao Applicant after: QINGDAO HAIER DRUM 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 DRUM WASHING MACHINE Co.,Ltd. |
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