CN107012655A - Upper lid damper, upper lid slow descending device and washing machine for washing machine - Google Patents

Upper lid damper, upper lid slow descending device and washing machine for washing machine Download PDF

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Publication number
CN107012655A
CN107012655A CN201710379382.7A CN201710379382A CN107012655A CN 107012655 A CN107012655 A CN 107012655A CN 201710379382 A CN201710379382 A CN 201710379382A CN 107012655 A CN107012655 A CN 107012655A
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CN
China
Prior art keywords
upper lid
washing machine
sleeve
damper
piston
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
Application number
CN201710379382.7A
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Chinese (zh)
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CN107012655B (en
Inventor
庄仲凯
王金铜
韩龙先
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qingdao Haier Washing Machine Co Ltd
Haier Smart Home Co Ltd
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Qingdao Haier Washing Machine Co Ltd
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Application filed by Qingdao Haier Washing Machine Co Ltd filed Critical Qingdao Haier Washing Machine Co Ltd
Priority to CN201710379382.7A priority Critical patent/CN107012655B/en
Publication of CN107012655A publication Critical patent/CN107012655A/en
Application granted granted Critical
Publication of CN107012655B publication Critical patent/CN107012655B/en
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    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F37/00Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/20Mountings, e.g. resilient mountings, for the rotary receptacle, motor, tub or casing; Preventing or damping vibrations
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F39/00Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/12Casings; Tubs
    • D06F39/14Doors or covers; Securing means therefor

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)

Abstract

The invention belongs to washing machine technology field, a kind of upper lid damper, upper lid slow descending device and washing machine for washing machine is specifically provided.Present invention seek to address that the problem of existing damper can not increase damping force with the decline of upper lid.For this purpose, the upper lid damper of the present invention includes sleeve, the piston of slidably insertion sleeve;Upper lid damper also includes:Friction member, it is connected to the side of the bottom of the close sleeve of piston, and the overall diameter of friction member is arranged to slideably closely be connected with the inwall of sleeve;Compressible member, it is connected to the side of the bottom of the close sleeve of friction member;Elastic component, it is arranged between the bottom of sleeve and compressible member.By setting friction plate, compressible member and elastic component, the damping force gradually increased washing machine top case three-stage can be realized, ensures that the whole process covered is more smooth.

Description

Upper lid damper, upper lid slow descending device and washing machine for washing machine
Technical field
The invention belongs to washing machine technology field, a kind of slow drop of upper lid damper, upper lid for washing machine is specifically provided Device and washing machine.
Background technology
With the quickening pace of modern life and people are to the high request of life comfort level, it is daily that washing machine has become people Important household electrical appliance in life.However, close washing machine upper lid when, the strength used it is excessive or it is upper lid when closed Influenceed by gravity, upper lid can hurtle down and pound body of the washing machine, so as to produce the huge sound, washing machine is also made Into no small infringement, or even the accident for injuring user's finger by a crashing object occurs, therefore inconvenience is brought to user, have impact on user's Use feeling.
In order to avoid washing machine top case hurtles down the harmful effect brought when closed, major part washing machine top case at present Hinge portion is fitted with rotary type damper and realizes damping, but in the case that upper lid low-angle is opened, due to work Make the limitation of principle, upper lid is when closed almost without damping.
Opened to solve upper lid low-angle, the problem of damper effect is not good during closing, Publication No. CN204898353U utility application is disclosed entitled " a kind of slow descending device of cover plate for washing machine ".Specifically, The slow descending device includes cover board support, rocking arm, upper frame bracket and damper.Wherein, cover plate assembly and upper frame bracket pivotally connect Connect, one end rotationally connecting cover plate support, damper uses Linear piston type damper, the Linear piston type damping device Body includes sleeve and is plugged in sleeve that the piston of line slip can be entered.Although Linear piston type damper ensure that cover plate is in office Meaning angle can all be damped effect when closing, but its damping force produced be during upper lid decline it is constant always, As the angle between upper lid and body of the washing machine diminishes, the weight component in the vertical direction that damper is subject to becomes big, therefore The decrease speed of lid can be made as its angle between body of the washing machine diminishes and progressively accelerates, can still cause impact The problem of spending greatly, or even injure user by a crashing object.
Correspondingly, this area needs a kind of new washing machine top case damper to solve the above problems.
The content of the invention
It has been that the existing damper of solution can not be with the decline of upper lid to solve above mentioned problem of the prior art And the problem of increase damping force.The invention provides a kind of upper lid damper for washing machine, the upper lid damper includes: Sleeve, it has chamber;Piston, it is slidably inserted in the chamber of the sleeve;The upper lid damper is also wrapped Include:Friction member, it is connected to the side of the bottom of the close sleeve of the piston, and the overall diameter of the friction member is set It is set to and is slideably closely connected with the inwall of the sleeve;Compressible member, it is connected to the close set of the friction member The side of the bottom of cylinder;Elastic component, it is arranged between the bottom of the sleeve and the compressible member.
In the optimal technical scheme of the above-mentioned upper lid damper for washing machine, the piston, the friction member and At least one in the compressible member, which is arranged to seal slidingly against with the inwall of the sleeve, to be connected so that when the piston To the sleeve basal sliding when, the air in the chamber is compressed.
In the optimal technical scheme of the above-mentioned upper lid damper for washing machine, the compression stress of the compressible member is small In the elastic force of the elastic component.
In the optimal technical scheme of the above-mentioned upper lid damper for washing machine, the elastic component includes elastic portion Part, the first elastomeric element seat and the second elastomeric element seat, the first elastomeric element seat are fixed on the elastomeric element close to institute State on one end of piston, the other end of the elastomeric element is connected by the second elastomeric element seat with the bottom of the sleeve.
In the optimal technical scheme of the above-mentioned upper lid damper for washing machine, first friction member is rubber blanket Piece.
In the optimal technical scheme of the above-mentioned upper lid damper for washing machine, second friction member is to slide skin Bowl.
In the optimal technical scheme of the above-mentioned upper lid damper for washing machine, the elastomeric element is spring.
In the optimal technical scheme of the above-mentioned upper lid damper for washing machine, the size of the elastic component is set Into so that when the piston slides into the farthest of the bottom away from the sleeve, the elastic component is in uncompressed shape State.
The present invention also provides a kind of upper lid slow descending device for washing machine, and the upper lid slow descending device includes activity and propped up Frame, fixed support, pull bar and upper lid damper, the top cap of the travel(l)ing rest and the washing machine connect, the fixed branch Frame is connected with the main body of the washing machine, and when the upper lid of the washing machine is covered, the travel(l)ing rest can drive the drawing Bar compresses the upper lid damper, and the upper lid damper is according to any upper lid damper of the present invention.
The present invention also provides a kind of washing machine, and it includes lid, body of the washing machine and upper lid slow descending device, and the upper lid is slow Falling unit connects lid and body of the washing machine respectively, and the upper lid slow descending device is according to any laundry of the present invention Machine.
It will be appreciated to those of skill in the art that in the preferred technical solution of the present invention, by setting friction plate, can Compression piece and elastic component, can be realized to washing machine top case three-stage damping action.First, when the upper lid of washing machine starts lid During conjunction, piston is to the basal sliding of sleeve, and now the weight component of washing machine top case vertically is smaller, upper lid falling speed Very little, therefore the inwall of only friction member and sleeve is slideably tightly engaged into, damping force is minimum.Then, washing machine top case is worked as When further covering, the weight component of upper cover rim vertical direction gradually increases, now, and compressible member is compressed and the sleeve that rubs Inwall, produce frictional damping and compression damping, in addition, friction member is slideably closely connected with sleeve lining all the time, therefore, The damping force now produced is frictional damping, the compression damping sum of the frictional damping that friction member is produced and compressible member generation, Total damping power becomes big, so as to counteract the gravity increment of cover rim vertical direction, realizes at the uniform velocity cushioning effect.Finally, when washing When the upper lid of clothing machine continues to cover, the weight component of upper cover rim vertical direction further increases, meanwhile, elastic component starts to be pressed Contracting is there is provided elastic damping, and the damping force now produced is frictional damping, the friction of compressible member generation and the pressure that friction member is produced The elastic damping sum that contracting damping force and elastic component are provided, so as to offset the weight component of upper cover rim vertical direction.
In summary, washing machine top case damper of the invention can provide three-stage gradually during upper lid falls The damping force of increase, so that the whole of washing machine top case covers process speed evenly, gently.
On the other hand, due at least one in friction member, compressible member and piston and the inner slidable of sleeve it is close Engagement, makes air of the piston in meeting compression sleeve during being slided to sleeve bottom, so as to produce air damping, further Ground optimizes the real work effect of lid damper.
Brief description of the drawings
Structural representation when Fig. 1 is the upper lid slow descending device opening for washing machine of the present invention;
Side view when Fig. 2 is the upper lid slow descending device opening for washing machine of the present invention;
Fig. 3 is the sectional view of the upper lid damper for washing machine of the present invention;
Reference numerals list
1st, upper lid slow descending device;11st, travel(l)ing rest;111st, the first fixed plate;112nd, the first fixing hole;12nd, fixed support; 121st, the second fixed plate;122nd, the second fixing hole;123rd, strip gab;124th, sliding bar;125th, limiting component;13rd, pull bar; 14th, upper lid damper;141st, sleeve;142nd, piston rod;143rd, piston;144th, elastic component;1441st, the first elastomeric element seat; 1442nd, the second elastomeric element seat;1443rd, elastomeric element;145th, friction member;146th, compressible member;15th, the first pivotal axis;16th, Two pivotal axis;17th, fixing axle;
Embodiment
The preferred embodiment of the present invention described with reference to the accompanying drawings.It will be apparent to a skilled person that this A little embodiments are used only for explaining the technical principle of the present invention, it is not intended that limit the scope of the invention.
It should be noted that in the description of the invention, the direction of the instruction such as term " upper end ", " lower end ", "left", "right" Or the term of position relationship is to be based on direction shown in the drawings or position relationship, this is intended merely to facilitate description, without referring to Show or imply described device or element there must be specific orientation, with specific azimuth configuration and operation, therefore be not understood that For limitation of the present invention.In addition, term " first ", " second " are only used for describing purpose, and it is not intended that indicating or implying Relative importance.
In addition it is also necessary to explanation, in the description of the invention, unless otherwise clearly defined and limited, term " peace Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integratedly Connection;Can be mechanical connection or electrical connection;Can be joined directly together, can also be indirectly connected to by intermediary, It can be the connection of two element internals.To those skilled in the art, it can understand that above-mentioned term exists as the case may be Concrete meaning in the present invention.
Referring initially to Fig. 1, structural representation when Fig. 1 is the upper lid slow descending device opening for washing machine of the present invention. A kind of washing machine that the present invention is provided is introduced first, and it includes the upper lid (not shown) of washing machine, the upper enclosure frame of washing machine (not shown) and upper lid slow descending device 1, specifically, the travel(l)ing rest 11 and fixed support 12 of upper lid slow descending device 1 It is connected respectively with upper lid and upper enclosure frame, the both sides of upper lid slow descending device 1 can relatively rotate and upper lid slow descending device 1 can Speed when covering in reduction, is made to cover more reasonable when covering, excessive velocities will not be caused due to Action of Gravity Field to upper Peripheral frame is impacted.In addition, upper lid is pivotally connected to upper enclosure frame by upper lid slow descending device 1, upper lid is by the slow drop dress of upper lid Putting 1 can outward winding relative to upper enclosure frame, now can be put into or take out clothing into washing machine, when upper cover, upper lid It is tightly engaged with upper enclosure frame, so as to ensure the use safety of washing machine in operation.
With continued reference to Fig. 1, the buffer unit 1 of the washing machine include travel(l)ing rest 11, fixed support 12, pull bar 13 and on Lid damper 14, specifically, travel(l)ing rest 11 are pivotally connected to fixed support 12 by the first pivotal axis 15, travel(l)ing rest 11 It can be rotated by the first pivotal axis 15 to the side of fixed support 12, travel(l)ing rest 11 and fixed support 12 include U-type groove structure, The first fixed plate 111 is additionally provided with the lower end (according to the direction in Fig. 1) of travel(l)ing rest 11, is set in the first fixed plate 111 Four the first fixing holes 112 are equipped with, it is excellent specifically for travel(l)ing rest 11 is connected with being bolted with the upper lid of washing machine Selection of land, can set upper lid the groove that upper end (according to the direction in Fig. 1) structure with travel(l)ing rest 11 matches to accommodate Travel(l)ing rest 11;The lower end (according to the direction in Fig. 1) of fixed support 12 is provided with the second fixed plate 121, fixed second Four the second fixing holes 122 are provided with plate 121, specifically for the upper enclosure frame of fixed support 12 and washing machine is consolidated by bolt Surely connect, it is preferable that upper enclosure frame can be arranged to have and the lower end of fixed support 12 (according to the direction in Fig. 1) structure phase The groove of matching accommodates fixed support 12.
Then Fig. 2 and with continued reference to Fig. 1, side when Fig. 2 is the upper lid slow descending device for the being used for washing machine opening of the present invention View;As shown in Fig. 2 being additionally provided with symmetrical strip gab 123 on two side plates of fixed support 12 and through two The sliding bar 124 of strip gab 123, sliding bar 124 can be carried out left and right (according to direction in Fig. 2) in strip gab 123 Slide, as shown in figure 1, the left and right ends (according to the direction in Fig. 1) of sliding bar 124 are provided with limiting component 125, limiting component 125 size is more than the width of strip gab 123, so as to prevent sliding bar 124 from departing from the strip gab in sliding process 123.Preferably, sliding bar 124 can be stud, and limiting component 125 is nut.
With continued reference to Fig. 1, pull bar 13 is provided with two, two pull bars 13 be arranged on travel(l)ing rest 11 and fixed support 12 it Between, two one end of pull bar 13 are pivotally connected by the lower end (according to the direction in Fig. 1) of the second pivotal axis 16 and travel(l)ing rest 11 Connect, specifically, when travel(l)ing rest 11 is in the state opened, the position of the second pivotal axis 16 is compared to the first pivotal axis 15 more Close to the lower end (according to the direction in Fig. 1) of fixed support 12, so that when travel(l)ing rest 11 is rotated along the first pivotal axis 15, energy Pull bar 13 is enough pulled to away from the lower end of fixed support 12 (according to direction in Fig. 1) movement.The other end of two pull bars 13 with The left and right ends (according to the direction in Fig. 1) that sliding bar 124 is in inside fixed support 12 are pivotally connected to.
With continued reference to Fig. 1, upper lid damper 14 is placed on the inside of fixed support 12, specifically, refering to Fig. 3, upper lid resistance Buddhist nun's device 14 includes sleeve 141, piston rod 142 and the piston 143 that is slideably plugged in sleeve 141, and sleeve 141 deviates from One end of piston rod 142 is fixedly connected to the upper end (according to the direction in Fig. 1) of fixed support 12, piston by fixing axle 17 Bar 142 is connected with sliding bar 124.
The operation principle of the upper lid slow descending device 1 of washing machine is briefly described with reference to Fig. 1 and Fig. 2, works as activity Support 11 can pull two pull bars 13 when being pivoted (according to the direction in Fig. 1) downwards, so as to force sliding bar 124 along strip gab 123 move to the right (according to the direction in Fig. 2), as shown in figure 1, because sliding bar 124 is connected and sleeve with piston rod 142 141 are fixedly connected with fixed support 12, therefore as the slip of sliding bar 124 can make piston rod 142 with piston 143 to sleeve 141 bottom motion, now the upper offer damping force of lid damper 14, makes process of the travel(l)ing rest 11 in whereabouts more smooth, speed Degree is more uniform.Because travel(l)ing rest 11 is fixedly connected with the upper lid of washing machine, the upper enclosure frame of fixed support 12 and washing machine It is permanently connected, therefore lid slow descending device 1 is able to ensure that to cover and falls more smooth, speed more in the whole process that covers on this Plus it is uniform and be not in interim card and falling speed is too fast situation about colliding occurs.
Fig. 3 is finally referred to, Fig. 3 is the sectional view of the upper lid damper 14 for washing machine of the present invention.As shown in figure 3, On this lid damper 14 include with the sleeve 141 of chamber (not indicated in figure), piston rod 142 and with the lower end of piston rod 142 The piston 143 being fixedly connected, the piston 143 is slidably inserted into the chamber of sleeve 141.Upper lid damper 14 is also Elastic component 144 including being arranged on the bottom of sleeve 141, the elastic component 144 can be compressed in the presence of piston 143, Elastic component 144 is sized to, when piston 143 is slided into away from 141 bottom farthest of sleeve, the elastic component 144 Upper end adjacent piston 143.
With continued reference to Fig. 3, lid damper 14 also includes friction member 145 on this, and friction member 145 is arranged under piston 143 End is closely attached (according to the direction in Fig. 3) and with piston 143, and the overall diameter of the friction member 145 is arranged to and sleeve 141 Inwall slideably closely connect.Therefore, when piston 143 is compressed inside sleeve 141, by friction member 145 with The friction of the inwall of sleeve 141 can produce frictional damping, it is preferable that the friction member 145 is the elastomeric material making by rub resistance Form.Although being above the preferred embodiment using rubber as friction member 145, skilled artisans appreciate that It is that equally the material of other rub resistances can be selected to be replaced.
With continued reference to Fig. 3, on this lid damper 14 also include compressible member 146, specifically, the compressible member 146 it is upper The lower end (according to the direction in Fig. 3) (according to the direction in Fig. 3) with friction member 145 is held to be closely attached, compressible member 146 Overall diameter is arranged to slideably closely be connected with the inwall of sleeve 141, so that when piston 143 is pressed inside sleeve 141 During contracting, frictional damping can be produced by the friction of compressible member 146 and the inwall of sleeve 141, further, since compressible member 146 It can be compressed, therefore when piston 143 is to when being compressed inside sleeve 141, the compressible member 146 can provide compression resistance Buddhist nun.Preferably, the compressible member 146 is Sliding seal cup.Although being above the preferred reality using Sliding seal cup as compressible member 146 Mode is applied, but it will be appreciated to those of skill in the art that can equally select other rub resistances, the component that itself can be compressed It is replaced.In addition, piston 143 is preferably metallic gasket, because metallic gasket has certain degree of hardness, it is unlikely to deform, Neng Gou Ensure in compression process friction member 145 and compressible member 146 be all the time the inner slidable with sleeve combine closely, it is to avoid go out The problem of existing eccentric wear, make the working life of lid damper 14 longer, also the normal work for upper lid damper 14 provides guarantor Shield.Although it will be appreciated to those of skill in the art that being the preferred embodiment progress using metallic gasket as piston above Description, but this selection is not irreplaceable, the higher material of some hardness can serve as the making material of piston Material, such as rigid plastics, rubber.
With continued reference to Fig. 3, elastic component 144 specifically includes the first elastomeric element the 1441, second elastomeric element of seat seat 1442 With elastomeric element 1443, the lower end of the first elastomeric element seat 1441 is connected with the upper end of elastomeric element 1443;Second elastomeric element The lower end of seat 1442 is fixedly connected with the bottom of sleeve 141, upper end and the elastomeric element 1443 of the second elastomeric element seat 1442 Lower end is connected.When piston 143 is in 141 inside slide downward of sleeve, elastomeric element 1443 can be compressed, so as to produce elasticity Damping.Specifically, elastomeric element 1443 is sized to, when piston 143 is slided into away from 141 bottom farthest of sleeve, The elastomeric element 1443 can make the upper end adjacent piston 143 of the first elastomeric element seat 1441.Preferably, elastomeric element 1443 Elastic force is more than the compression stress of compressible member 146, now when piston 143 is to when being compressed inside sleeve 141, with compressed line The increase of journey, interior wall friction of the friction member 145 first with sleeve 141 produces frictional damping, afterwards due to compressible member 146 Compression stress is less than the elastic force of elastomeric element 1443, therefore compressible member 146 starts to compress and rub with the inwall of sleeve 141 Wipe, produce compression damping and frictional damping, last elastomeric element 1443 is compressed, produce elastic damping, form three-stage gradually The damping force of increase, it will be appreciated to those of skill in the art that the elasticity of elastomeric element 1443 can also be more than from compression stress The compressible member 146 of power, this selection can also realize the damping force that the three-stage of lid damper gradually increases, different Be, with the increase of compression travel, after friction plate 145 provides frictional damping, elastomeric element 1443 compressed first and Elastic damping is produced, compressible member 146 is finally compressed and produces compression damping.Preferably, the elastomeric element 1443 is bullet Spring.Although being above the preferred embodiment using spring as elastomeric element 1443, skilled artisans appreciate that It is that equally other elastomeric materials can be selected to be replaced.
In addition, at least one in piston 143, friction member 145 and compressible member 146 is arranged to the inside with sleeve 141 Engagement is sealed slidingly against, makes piston 143 during to the basal sliding of sleeve 141, the air in chamber can be compressed, So as to produce air damping, the real work effect of lid damper 14 is further optimized.Preferably, by friction member 145 It is sized to engage with the inner wall sealing of sleeve 141, so that it is guaranteed that mistake of the friction member 145 to the basal sliding of sleeve 141 Cheng Zhong, can also produce air damping while producing frictional damping, be substantially increased what lid damper was integrally produced Damping force.Although it will be appreciated to those of skill in the art that being with the inner wall sealing of friction member 141 and sleeve 141 above Engagement is preferably described, it will be obvious that those skilled in the art can also by piston 143, can press At least one in contracting part 146 and friction member 145, which is arranged to seal slidingly against with the inwall of sleeve 141, to be engaged, and this change is not It is beyond the scope of the present invention.
The operation principle of the upper lid damper 14 of washing machine is briefly described with reference to Fig. 1, Fig. 2 and Fig. 3.
First, when the upper lid of washing machine starts to cover, travel(l)ing rest 11 is rotated down along the first pivotal axis 15, activity branch The lower end (according to direction in Fig. 1) of frame 11 pulls pull bar 13 to make pull bar 13 to the side of the close sleeve 141 of strip gab 123 Slide, so that compression piston bar 142 makes piston 143 sliding to the bottom (according to direction in Fig. 3) of sleeve 141 in sleeve 141 Dynamic, now the weight component of washing machine top case vertically is smaller, upper lid falling speed very little, therefore only friction member 145 Slideably it is tightly engaged into the inwall of sleeve 141, damping force is minimum.Then, when washing machine top case is further covered, upper lid Weight component vertically gradually increases, now, compressible member 146 compressed and the sleeve 141 that rubs inwall, therefore Compression damping and frictional damping are produced, friction member 145 is slideably closely connected with the inwall of sleeve 141 all the time in addition, therefore, this When the damping force that produces be the frictional damping that friction member 145 is produced and the friction that compressible member 146 is produced and compression damping power it Become big with, total damping power, so as to counteract the gravity increment of cover rim vertical direction, realize and at the uniform velocity delay drop effect.Finally, when When the upper lid of washing machine continues to cover, the weight component of upper cover rim vertical direction further increases, meanwhile, elastic component 144 is opened Beginning is compressed there is provided elastic damping, the damping force now produced be friction member 145 produce frictional damping, compressible member 146 produces The elastic damping sum that raw friction, compression damping power and elastic component 144 is provided, so as to offset upper cover rim Vertical Square To weight component.To sum up, washing machine top case damper 14 of the invention can provide three-stage during upper lid falls The damping force gradually increased, so that the whole of washing machine top case covers process speed evenly, gently.In addition, with upper lid Angle between upper enclosure frame diminishes, and the decrement of compressible member 146 and elastic component 144 gradually increases, so that the resistance produced Buddhist nun's power is increasing.Further, since friction member 145 and compressible member 146 are tightly engaged into the inner slidable of sleeve 141, Make the air that friction member 145 and compressible member 146 can be in compression sleeve 141 during to the basal sliding of sleeve 141, so that Air damping is produced, the real work effect of lid damper 14 is further optimized.
So far, combined preferred embodiment shown in the drawings describes technical scheme, still, this area Technical staff is it is easily understood that protection scope of the present invention is expressly not limited to these embodiments.Without departing from this On the premise of the principle of invention, those skilled in the art can make equivalent change or replacement to correlation technique feature, these Technical scheme after changing or replacing it is fallen within protection scope of the present invention.

Claims (10)

1. a kind of upper lid damper for washing machine, the upper lid damper includes:
Sleeve, it has chamber;
Piston, it is slidably inserted in the chamber of the sleeve;
Characterized in that, the upper lid damper also includes:
Friction member, it is connected to the side of the bottom of the close sleeve of the piston, and the overall diameter of the friction member It is arranged to slideably closely be connected with the inwall of the sleeve;
Compressible member, it is connected to the side of the bottom of the close sleeve of the friction member;
Elastic component, it is arranged between the bottom of the sleeve and the compressible member.
2. friction member according to claim 1, it is characterised in that the piston, the friction member and the compressible member In at least one be arranged to seal slidingly against with the inwall of the sleeve and be connected so that when the piston is to the sleeve During basal sliding, the air in the chamber is compressed.
3. upper lid damper according to claim 2, it is characterised in that the compression stress of the compressible member is less than the bullet The elastic force of property component.
4. upper lid damper according to claim 3, it is characterised in that the elastic component includes elastomeric element, first Elastomeric element seat and the second elastomeric element seat, the first elastomeric element seat are fixed on the elastomeric element close to the piston On one end, the other end of the elastomeric element is connected by the second elastomeric element seat with the bottom of the sleeve.
5. upper lid damper according to claim 4, it is characterised in that first friction member is rubber sheet gasket.
6. upper lid damper according to claim 5, it is characterised in that second friction member is Sliding seal cup.
7. upper lid damper according to claim 6, it is characterised in that the elastomeric element is spring.
8. upper lid damper according to claim 1, it is characterised in that the elastic component is sized to so that When the piston slides into the farthest of the bottom away from the sleeve, the elastic component is in uncompressed state.
9. a kind of upper lid slow descending device for washing machine, the upper lid slow descending device includes travel(l)ing rest, fixed support, pull bar And upper lid damper, the top cap of the travel(l)ing rest and the washing machine connects, the fixed support and the washing machine Main body is connected, when the upper lid of the washing machine is covered, and the travel(l)ing rest can drive the pull bar compression upper lid resistance Buddhist nun's device, it is characterised in that the upper lid damper is the upper lid damper any one of claim 1-8.
10. a kind of washing machine, including upper lid, body of the washing machine and upper lid slow descending device, the upper lid slow descending device are connected respectively The upper lid and the body of the washing machine, it is characterised in that the upper lid slow descending device is the slow drop of upper lid described in claim 9 Device.
CN201710379382.7A 2017-05-25 2017-05-25 Upper cover damper for washing machine, upper cover slow-falling device and washing machine Active CN107012655B (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109763305A (en) * 2018-12-27 2019-05-17 青岛海尔洗衣机有限公司 A kind of the upper cover damper and washing machine of washing machine
CN110699906A (en) * 2018-07-09 2020-01-17 青岛海尔洗衣机有限公司 Damping device and top-opening type clothes treatment equipment

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