CN207109362U - Oil seal and washing machine - Google Patents
Oil seal and washing machine Download PDFInfo
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- CN207109362U CN207109362U CN201720947472.7U CN201720947472U CN207109362U CN 207109362 U CN207109362 U CN 207109362U CN 201720947472 U CN201720947472 U CN 201720947472U CN 207109362 U CN207109362 U CN 207109362U
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- lip
- fastener
- oil seal
- drive shaft
- oil
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Abstract
The utility model provides a kind of oil seal and a kind of washing machine, and washing machine includes drive shaft and tripod, and oil seal includes：Oil sealing body and it is embedded in the intrinsic support of oil sealing；Oil sealing body includes：The main lip and secondary lip set around drive shaft, under installment state, secondary lip is located at the top of main lip；Be provided with the first fastener on the outside of main lip, the first fastener by main lockjaw admittedly on the driving shaft；Be provided with the second fastener on the outside of secondary lip, the second fastener by secondary lockjaw admittedly on the driving shaft.Oil seal provided by the utility model, the first fastener and the second fastener are provided with the outside of main lip and secondary lip respectively, setting for first fastener and the second fastener is that main lip and secondary lip support the enclasping force for providing radial direction on the driving shaft, further ensure that the end face seal that main lip and secondary lip are in contact with drive shaft, enclasping force of the oil seal to drive shaft can be effectively improved, improves the sealing reliability of oil seal.
Description
Technical field
Household electrical appliance technical field is the utility model is related to, in particular to a kind of oil seal and a kind of washing machine.
Background technology
In washing machine field, one end of drive shaft is placed in the aqueous environment between inner/outer tube, to prevent washings from entering
Enter causes bearing rust to fail into bearing, oil seal can be installed before bearing to completely cut off the infiltration of washings.Now commonly use oil sealing
Part primary structure contains dust excluder lips, main lip, secondary lip, banding spring and metallic framework, wherein main lip carries out self-tightening benefit by banding spring
Repaying still has good sealing property during ensuring that oil sealing has installation deviation, can prevent oil sealing early stage from revealing.But such
After long-term use, dust excluder lips are easily influenceed type oil sealing by turbulent water and washing dirt deposition, cause seal failure, and secondary lip
In longtime running, because the aging of material, abrasion etc. cause seal failure, it can all cause washings to penetrate into bearing and cause
Washing machine bearing rust, so as to influence the service life of washing machine.
Utility model content
The utility model is intended at least solve one of technical problem present in prior art or correlation technique.
Therefore, one side of the present utility model is, there is provided a kind of oil seal.
Other side of the present utility model is, there is provided a kind of washing machine.
In view of this, according to one side of the present utility model, the utility model provides a kind of oil seal, for washing
Clothing machine, washing machine include drive shaft and tripod, and oil seal includes：Oil sealing body and it is embedded in the intrinsic support of oil sealing；Oil
Envelope body includes：The main lip and secondary lip set around drive shaft, under installment state, secondary lip is located at the top of main lip；Outside main lip
Side is provided with the first fastener, the first fastener by main lockjaw admittedly on the driving shaft；The second fastener is provided with the outside of secondary lip,
Second fastener by secondary lockjaw admittedly on the driving shaft.
Oil seal provided by the utility model, the assembling in washing machine with drive shaft in use, coordinate, main lip and secondary lip
It is close to the outer wall of drive shaft, by main lip and secondary lip to the enclasping force of drive shaft, plays a part of sealing, to prevent washings
And washing dirt etc. enters bearing along drive shaft；The first fastener and the second fastening are provided with the outside of main lip and secondary lip respectively
Part, the first fastener and the second fastener set the enclasping force for being supported for main lip and secondary lip and providing radial direction on the driving shaft, enter
One step ensures the end face seal that main lip and secondary lip are in contact with drive shaft, can effectively improve holding of the oil seal to drive shaft
Power.When drive shaft produces swing in washing machine work, being arranged at the intrinsic support of oil sealing can be played a supporting role, and support is adopted
With bending structure, oil seal assembly deflections are prevented available for the rigidity for improving oil seal；First fastener and the second fastener make
Drive shaft is obtained when swinging, main lip and secondary lip can follow drive shaft to be swung, and keep sealing state, improve oil sealing
The sealing effectiveness of part part；Meanwhile compensate for existing single lip and fastener is set in long-term use, lip abrasion can not seal
Deficiency；Also, the first fastener and the second fastener are set respectively in the outside of main lip and secondary lip so that main lip and secondary lip are with driving
Enclasping force between moving axis will not with use time, the abrasion of material, aging etc. and decay, the service life of oil seal obtains
To significantly being lifted, meanwhile, when one of lip breaks down and can not sealed, another lip can still play close
The effect of envelope, does not influence the use of user, and the effect of double insurance is served in water resistance, improves the sealing of oil seal
Reliability.
In addition, the oil seal in above-described embodiment provided by the utility model can also have following additional technical feature：
In the above-mentioned technical solutions, it is preferable that the first groove is offered on the outside of main lip, the first fastener is arranged on first
In groove；The second groove is offered on the outside of secondary lip, the second fastener is arranged in the second groove.
In the technical scheme, the first fastener is arranged in the first groove, the second fastener is arranged on the second groove
In, it can be ensured that the first fastener and the second fastener can be precisely located on main lip and secondary lip when mounted, and in long-term use
During, ring spring will not be made more stable, it is ensured that the first fastener due to the generations such as the rotation of drive shaft, swing skew
And second fastener there is the effect for fastening main lip and secondary lip during long-term use.
In any of the above-described technical scheme, it is preferable that the first fastener and the second fastener are ring spring.
In the technical scheme, the first fastener and the second fastener select ring spring, and ring spring is simple in construction, easily
In batch production, and cost is relatively low, reduces the production cost of product.
Preferably, ring spring is made up of antirust, corrosion resistant metal material, it is not easy to deformation or ageing failure.
In any of the above-described technical scheme, it is preferable that oil sealing body also includes main lip waist and secondary lip waist；Main lip waist
It is connected between main lip and secondary lip and with main lip；Secondary lip waist is connected between main lip and secondary lip and with secondary lip；It is main
Lip waist surrounds with secondary lip waist and forms oil pocket.
In the technical scheme, it is provided with to be enclosed with secondary lip waist by main lip waist between the main lip and secondary lip of oil seal and sets
Into oil pocket, loaded in oil pocket sealing and lubrication grease, on the one hand, the lubrication of grease can reduce drive shaft
Abrasion when rotating at a high speed for main lip and secondary lip, extend the service life of oil seal；On the other hand, the sealing function of grease can
Further prevent dust and liquid from entering Bearing inner, further lift the sealing effectiveness of oil seal.
In addition, the size of oil pocket can be controlled so that oil pocket by reasonably setting the size of main lip waist and secondary lip waist
The grease of memory storage meets the long-term use of oil seal；Also, by setting main lip waist and secondary lip waist that there is certain length
Degree, it can also make main lip waist and secondary lip waist adapt to drive the trackability needed for shaft run-out, avoid due to oil pocket quilt
Excessive compression causes grease leakage, so that sealing effectiveness is influenceed, meanwhile, it also ensure that the service life of oil seal.
In any of the above-described technical scheme, it is preferable that main lip and main lip waist connection form main lip, main lip with
Drive shaft is interference fitted；Secondary lip forms secondary lip with secondary lip waist connection, and secondary lip is interference fitted with drive shaft.
In the technical scheme, main lip and secondary lip are interference fitted with drive shaft so that the end of main lip and secondary lip
Face seals, it is ensured that the sealing of oil seal；Simultaneously as main lip and the contact area of secondary lip and drive shaft are smaller, can subtract
Friction between small oil seal and drive shaft, reduce the abrasion to oil seal in drive shaft high-speed rotation；Also, main lip
Mouth and secondary lip are connected with oil pocket, and the grease of oil pocket can form oil film at main lip and secondary lip, in drive shaft high-speed rotation
When, the abrasion of lip can be effectively reduced, further extends the service life of oil seal.
In any of the above-described technical scheme, it is preferable that dust excluder lips are additionally provided with oil sealing body, dust excluder lips are in radial direction
It is upper to be higher than secondary lip in the axial direction positioned at the outside of secondary lip, dust excluder lips；Wherein, the end face of the top insertion tripod of dust excluder lips
In groove so that dust excluder lips mutually seal with facing groove.
In the technical scheme, dust excluder lips are additionally provided with oil sealing body, dust excluder lips are located in the radial direction oil seal
The outside of secondary lip, and the axially arranged and top of secondary lip of the dust excluder lips along oil seal, during actual installation, the top insertion of dust excluder lips
In the facing groove of the tripod of washing machine so that the facing groove of dust excluder lips and tripod seals, in the operating of washing machine
The facing groove of Cheng Zhong, dust excluder lips and tripod forms sealing area, dust excluder lips first dust and other debris are blocked in it is outer, with
The load of main lip and secondary lip is reduced, dust is effectively prevent and other debris enters sealing area, dust-proof, waterproof effect is risen
The effect of dual fail-safe has been arrived, while prevented also from disturbance of the washings in laundry processes to secondary lip, has avoided washings by secondary lip
Mouth infiltration bearing, so that the sealing reliability of oil seal greatly improves.
In any of the above-described technical scheme, it is preferable that the lateral wall of dust excluder lips is outward-dipping the bottom of to by pushing up, dust excluder lips it is interior
Side wall is sloped inwardly by pushing up the bottom of to.
In the technical scheme, the lateral wall of dust excluder lips and madial wall are obliquely installed so that washings and dust adhere to
When on the lateral wall and madial wall of dust excluder lips, due to by gravity and the active force of inclined lateral wall and inclined madial wall,
So as to depart from the lateral wall of dust excluder lips and madial wall, dust accretions are avoided to accelerate on the lateral wall and madial wall of dust excluder lips dust-proof
The abrasion of lip, so as to improve the stability in use of dust excluder lips, extend the service life of dust excluder lips.
In any of the above-described technical scheme, it is preferable that oil sealing body is elastic oil sealing body, and oil sealing body one into
Type.
In the technical scheme, oil sealing body is preferably made of flexible rubber, this body by integral forming of oil sealing, branch
Frame is located at the inside of oil sealing body, and oil sealing is bulk sulfided in branch frame peripheral.Main lip, secondary lip, dust excluder lips can be improved by being integrally formed
Deng the bonding strength of part, and oil sealing body is made into integration, and processing is simple, is easy to produce in batches, can improve the processing effect of product
Rate, reduce the processing cost of product.
It is, of course, understood that oil sealing body can also and anti abrasive material flexible by other be made.
According to second of the present utility model aspect, there is provided a kind of washing machine, include the oil of any of the above-described technical scheme
Sealing.Therefore, washing machine provided by the utility model, there are whole beneficial effects of the oil seal, it is numerous to list herein.
In any of the above-described technical scheme, it is preferable that washing machine also includes drive shaft, around drive shaft set bearing and
Tripod；Oil seal is arranged between tripod and bearing.
In the technical scheme, washing machine has washing tub, and washing tub is fixedly connected with drive shaft, so as to drive shaft
Rotation and rotate, the bearing and tripod of support drive shaft are additionally provided with outside washing tub, drive shaft is movably supported on axle
In holding, in order to prevent washings from entering Bearing inner, oil seal, and the dust excluder lips of oil seal are housed between bearing and tripod
In the facing groove of embedded washing machine tripod so that the facing groove of dust excluder lips and tripod seals, and oil seal is by washing tub
Interior space isolates with bearing, effectively prevents the washings in washing tub and debris from entering bearing, bearing is caused to corrode, and influences
The normal use of washing machine.
Additional aspect and advantage of the present utility model will provide in following description section, partly by from following description
In become obvious, or by it is of the present utility model practice recognize.
Brief description of the drawings
Of the present utility model above-mentioned and/or additional aspect and advantage will in the description from combination accompanying drawings below to embodiment
Become obvious and be readily appreciated that, wherein：
Fig. 1 shows the structural representation of the oil seal according to one embodiment of the present utility model；
Fig. 2 shows structural representations of the Fig. 1 according to the oil seal of one embodiment of the present utility model at A；
Fig. 3 shows the another structural representation of the oil seal according to one embodiment of the present utility model；
Fig. 4 shows the structural representation of the washing machine according to one embodiment of the present utility model；
Fig. 5 shows structural representations of the Fig. 4 according to the washing machine of one embodiment of the present utility model at B.
Reference：
Wherein, the corresponding relation between the reference in Fig. 1 to Fig. 5 and component names is：
10 oil sealing bodies, 102 main lips, 1022 main lips, 104 secondary lips, 1042 secondary lips, 106 main lip waists, 108 secondary lips
Waist, 110 dust excluder lips, 20 supports, 30 first fasteners, 40 second fasteners, 50 oil pockets, 60 tripods, 602 facing grooves,
70 drive shafts.
Embodiment
In order to be more clearly understood that above-mentioned aspects, features and advantages of the present utility model, below in conjunction with the accompanying drawings and have
The utility model is further described in detail body embodiment.It should be noted that in the case where not conflicting, this Shen
The feature in embodiment and embodiment please can be mutually combined.
Many details are elaborated in the following description in order to fully understand the utility model, still, this practicality
New to be different from other modes described here using other to implement, therefore, the scope of protection of the utility model is simultaneously
Do not limited by following public specific embodiment.
Oil seal and washing machine referring to Fig. 1 to Fig. 5 descriptions according to the utility model some embodiments offer.
As Figure 1 and Figure 4, one side of the present utility model, there is provided a kind of oil seal, for washing machine, laundry
Machine includes drive shaft 70 and tripod 60, and oil seal includes：Oil sealing body 10 and the support 20 being embedded in oil sealing body 10；Oil
Envelope body 10 includes：Under the main lip 102 and secondary lip 104 of the setting of drive shaft 70, installment state, secondary lip 104 is located at main lip 102
Top；The outside of main lip 102 is provided with the first fastener 30, and main lip 102 is fastened in drive shaft 70 by the first fastener 30；
The outside of secondary lip 104 is provided with the second fastener 40, and secondary lip 104 is fastened in drive shaft 70 by the second fastener 40.
Oil seal provided by the utility model, assembling with drive shaft 70 in use, coordinate, main lip 102 in washing machine
And secondary lip 104 is close to the outer wall of drive shaft 70, by main lip 102 and secondary lip 104 to the enclasping force of drive shaft 70, sealing is played
Effect, to prevent washings and washing dirt etc. from entering bearing along drive shaft 70；Respectively in the outer of main lip 102 and secondary lip 104
Side is provided with the first fastener 30 and the second fastener 40, and the first fastener 30 and the second fastener 40 are set as main lip 102
And secondary lip 104 is against the enclasping force that radial direction is provided in drive shaft 70, main lip 102 and secondary lip 104 and drive shaft are further ensured that
70 end face seals being in contact, enclasping force of the oil seal to drive shaft 70 can be effectively improved.Driven in washing machine work
When axle 70 produces swing, the support 20 being arranged in oil sealing body 10 can play a supporting role, and support 20 uses bending structure, can
Rigidity for improving oil seal prevents oil seal assembly deflections；First fastener 30 and the second fastener 40 cause drive shaft 70
When swinging, main lip 102 and secondary lip 104 can follow drive shaft 70 to be swung, and keep sealing state, improve oil sealing
The sealing effectiveness of part part；Meanwhile compensate for existing single lip and fastener is set in long-term use, lip abrasion can not seal
Deficiency；Also, the first fastener 30 and the second fastener 40 are set respectively in the outside of main lip 102 and secondary lip 104 so that main lip
Enclasping force between 102 and secondary lip 104 and drive shaft 70 will not with use time, the abrasion of material, aging etc. and decay,
The service life of oil seal is improved significantly, meanwhile, when one of lip breaks down and can not sealed, another
Lip can still play the effect of sealing, not influence the use of user, and the effect of double insurance is served in water resistance,
Improve the sealing reliability of oil seal.
As shown in Figure 1 to Figure 3, in one embodiment of the present utility model, it is preferable that the outside of main lip 102 offers
First groove, the first fastener 30 are arranged in the first groove；The outside of secondary lip 104 offers the second groove, the second fastener
40 are arranged in the second groove.
In this embodiment, the first fastener 30 is arranged in the first groove, it is recessed that the second fastener 40 is arranged on second
In groove, it can be ensured that the first fastener 30 and the second fastener 40 can be precisely located on main lip 102 and secondary lip 104 when mounted,
And during long-term use, due to the generations such as the rotation of drive shaft 70, swing skew ring spring will not be made more stable,
Ensure that the first fastener 30 and the second fastener 40 have the effect for fastening main lip 102 and secondary lip 104 during long-term use.
In one embodiment of the present utility model, it is preferable that the first fastener 30 and the second fastener 40 are annular elastomeric
Spring.
In this embodiment, the first fastener 30 and the second fastener 40 select ring spring, and ring spring is simple in construction,
It is easy to produce in batches, and cost is relatively low, reduces the production cost of product.
Preferably, ring spring is made up of antirust, corrosion resistant metal material, it is not easy to deformation or ageing failure.
In one embodiment of the present utility model, it is preferable that oil sealing body 10 also includes main lip waist 106 and secondary lip waist
Portion 108；Main lip waist 106 is connected between main lip 102 and secondary lip 104 and with main lip 102；Secondary lip waist 108 is positioned at master
It is connected between lip 102 and secondary lip 104 and with secondary lip 104；Main lip waist 106 surrounds with secondary lip waist 108 and forms oil pocket.
In this embodiment, it is provided between the main lip 102 and secondary lip 104 of oil seal by main lip waist 106 and secondary lip
Waist 108 encloses the oil pocket being set as, and the grease of sealing and lubrication has been loaded in oil pocket, on the one hand, the lubrication of grease
The abrasion for main lip 102 and secondary lip 104 when drive shaft 70 rotates at a high speed can be reduced, extends the service life of oil seal；It is another
Aspect, the sealing function of grease can further prevent dust and liquid from entering Bearing inner, further lift the close of oil seal
Seal effect.
In addition, the size of oil pocket 50 can be controlled by reasonably setting the size of main lip waist 106 and secondary lip waist 108,
So that the grease of the memory storage of oil pocket 50 meets the long-term use of oil seal；Also, by setting main lip waist 106 and secondary lip waist
108 have certain length, and main lip waist 106 and secondary lip waist 108 can also adapted to needed for the circular runout of drive shaft 70
Trackability, avoid because oil pocket 50 causes grease leakage by excessive compression, thus influence sealing effectiveness, meanwhile, also ensure that
The service life of oil seal.
As shown in figure 3, in one embodiment of the present utility model, it is preferable that main lip 102 is connected with main lip waist 106
The place of connecing forms main lip 1022, and main lip 1022 is interference fitted with drive shaft 70；Secondary lip 104 and the secondary connection of lip waist 108
Secondary lip 1042 is formed, secondary lip 1042 is interference fitted with drive shaft 70.
In this embodiment, main lip 1022 and secondary lip 1042 are interference fitted with drive shaft 70 so that main lip 1022
And the end face seal of secondary lip 1042, it is ensured that the sealing of oil seal；Simultaneously as main lip 1022 and secondary lip 1042 are with driving
The contact area of moving axis 70 is smaller, can reduce the friction between oil seal and drive shaft 70, reduces and is rotated at a high speed in drive shaft 70
During abrasion to oil seal；Also, main lip 1022 and secondary lip 1042 are connected with oil pocket 50, and the grease in oil pocket 50 can
Oil film is formed at main lip 1022 and secondary lip 1042, in 70 high-speed rotation of drive shaft, the mill of lip can be effectively reduced
Damage, further extend the service life of oil seal.
As shown in Figures 3 to 5, in one embodiment of the present utility model, it is preferable that be additionally provided with oil sealing body 10
Dust excluder lips 110, dust excluder lips 110 are located at the outside of secondary lip 104 in radial directions, and dust excluder lips 110 are in the axial direction higher than pair
Lip 104；Wherein, in the facing groove 602 of the top insertion tripod 60 of dust excluder lips 110 so that dust excluder lips 110 and facing groove
602 phases seal.
In this embodiment, dust excluder lips 110, radial direction of the dust excluder lips 110 in oil seal are additionally provided with oil sealing body 10
It is upper positioned at the outside of secondary lip 104, and the axially arranged and top of secondary lip 104 of the dust excluder lips 110 along oil seal, during actual installation,
In the facing groove 602 of the tripod 60 of the top insertion washing machine of dust excluder lips 110 so that dust excluder lips 110 and tripod 60
Facing groove 602 is sealed, and in the operation process of washing machine, the facing groove 602 of dust excluder lips 110 and tripod 60, which is formed, to be sealed
Dust and other debris are first blocked in outside, to reduce the load of main lip 102 and secondary lip 104, effectively kept away by region, dust excluder lips 110
Dust is exempted from and other debris enters sealing area, the effect of dual fail-safe has been served to dust-proof, waterproof effect, while can also prevent
Only disturbance of the washings to secondary lip 1042 in laundry processes, avoids washings from penetrating into bearing by secondary lip 1042, so that oily
The sealing reliability of sealing greatly improves.
In one embodiment of the present utility model, it is preferable that the lateral wall of dust excluder lips 110 is outward-dipping the bottom of to by pushing up,
The madial wall of dust excluder lips 110 is sloped inwardly by pushing up the bottom of to.
In this embodiment, the lateral wall of dust excluder lips 110 and madial wall are obliquely installed so that washings and dust adhere to
When on the lateral wall and madial wall of dust excluder lips 110, due to being acted on by gravity and inclined lateral wall and inclined madial wall
Power, so as to depart from the lateral wall of dust excluder lips 110 and madial wall, dust accretions are avoided in the lateral wall and madial wall of dust excluder lips 110
The upper abrasion for accelerating dust excluder lips 110, so as to improve the stability in use of dust excluder lips 110, extend dust excluder lips 110 uses the longevity
Life.
In one embodiment of the present utility model, it is preferable that oil sealing body 10 is elastic oil sealing body 10, and oil sealing sheet
Body 10 is integrally formed.
In this embodiment, oil sealing body 10 is preferably made of flexible rubber, and oil sealing body 10 is integrally formed,
Support 20 is located at the inside of oil sealing body 10, and oil sealing body 10 vulcanizes around support 20.Main lip can be improved by being integrally formed
102nd, the bonding strength of the part such as secondary lip 104, dust excluder lips 110, and oil sealing body 10 is made into integration, processing is simple, is easy to batch
Production, the processing efficiency of product can be improved, reduce the processing cost of product.
It is, of course, understood that oil sealing body 10 can also and anti abrasive material flexible by other be made.
As shown in Figure 4, Figure 5, according to second of the present utility model aspect, there is provided a kind of washing machine, including above-mentioned
The oil seal of one technical scheme.Therefore, washing machine provided by the utility model, there are whole beneficial effects of the oil seal,
This is not enumerated.
In one embodiment of the present utility model, it is preferable that washing machine also includes drive shaft 70, is set around drive shaft 70
The bearing and tripod 60 put；Oil seal is arranged between tripod 60 and bearing.
In this embodiment, washing machine has washing tub, and washing tub is fixedly connected with drive shaft 70, so as to drive shaft
70 rotation and rotate, the bearing and tripod 60 of support drive shaft 70 are additionally provided with outside washing tub, drive shaft 70 is moveable
It is supported in bearing, in order to prevent washings from entering Bearing inner, oil seal, and oil sealing is housed between bearing and tripod 60
The dust excluder lips 110 of part are embedded in the facing groove 602 of washing machine tripod 60 so that dust excluder lips 110 and the end face of tripod 60
Groove 602 seals, and oil seal isolates in the space in washing tub with bearing, effectively prevents the washings in washing tub and debris from entering
Enter bearing, bearing is caused to corrode, influences the normal use of washing machine.
In the description of this specification, term " multiple " then refers to two or more, is limited unless otherwise clear and definite, art
The orientation or position relationship of the instructions such as language " on ", " under " are based on orientation shown in the drawings or position relationship, are for only for ease of
Describe the utility model and simplify to describe, rather than instruction or imply signified device or element must have specific orientation,
With specific azimuth configuration and operation, therefore it is not intended that to limitation of the present utility model；Term " connection ", " installation ", " Gu
It is fixed " etc. all should be interpreted broadly, for example, " connection " can be fixedly connected or be detachably connected, or integratedly connect
Connect；Can be joined directly together, can also be indirectly connected by intermediary.For the ordinary skill in the art, may be used
To understand concrete meaning of the above-mentioned term in the utility model as the case may be.
In the description of this specification, the description of term " one embodiment ", " some embodiments ", " specific embodiment " etc.
Mean that combining specific features, structure, material or feature that the embodiment or example describe is contained in of the present utility model at least one
In individual embodiment or example.In this manual, identical embodiment is not necessarily referring to the schematic representation of above-mentioned term
Or example.Moreover, specific features, structure, material or the feature of description can be in any one or more embodiments or example
In combine in an appropriate manner.
Preferred embodiment of the present utility model is the foregoing is only, is not limited to the utility model, for this
For the technical staff in field, the utility model can have various modifications and variations.It is all in the spirit and principles of the utility model
Within, any modification, equivalent substitution and improvements made etc., it should be included within the scope of protection of the utility model.
Claims (10)
1. a kind of oil seal, for washing machine, the washing machine includes drive shaft (70) and tripod (60), it is characterised in that
The oil seal includes：
Oil sealing body (10) and the support (20) being embedded in the oil sealing body (10)；The oil sealing body (10) includes：Enclose
Under the main lip (102) and secondary lip (104) of drive shaft (70) setting, installment state, the secondary lip (104) is located at the main lip
(102) top；
It is provided with the first fastener (30) on the outside of the main lip (102), first fastener (30) is by the main lip (102)
It is fastened in the drive shaft (70)；
It is provided with the second fastener (40) on the outside of the secondary lip (104), second fastener (40) is by the secondary lip (104)
It is fastened in the drive shaft (70).
2. oil seal according to claim 1, it is characterised in that
The first groove is offered on the outside of the main lip (102), first fastener (30) is arranged in first groove；
The second groove is offered on the outside of the secondary lip (104), second fastener (40) is arranged in second groove.
3. oil seal according to claim 1, it is characterised in that
First fastener (30) and second fastener (40) are ring spring.
4. oil seal according to claim 1, it is characterised in that
The oil sealing body (10) also includes main lip waist (106) and secondary lip waist (108)；
The main lip waist (106) between the main lip (102) and the secondary lip (104) and with main lip (102) phase
Connection；
The secondary lip waist (108) between the main lip (102) and the secondary lip (104) and with secondary lip (104) phase
Connection；
The main lip waist (106) surrounds with the secondary lip waist (108) and forms oil pocket.
5. oil seal according to claim 4, it is characterised in that
The main lip (102) forms main lip (1022), the main lip (1022) with main lip waist (106) connection
It is interference fitted with the drive shaft (70)；
The secondary lip (104) forms secondary lip (1042), the secondary lip (1042) with secondary lip waist (108) connection
It is interference fitted with the drive shaft (70).
6. oil seal according to any one of claim 1 to 5, it is characterised in that
Dust excluder lips (110) are additionally provided with the oil sealing body (10), the dust excluder lips (110) are in radial directions positioned at described
The outside of secondary lip (104), the dust excluder lips (110) are higher than the secondary lip (104) in the axial direction；
Wherein, the top of the dust excluder lips (110) is embedded in the facing groove (602) of the tripod (60) so that described anti-
Dirt lip (110) mutually seals with the facing groove (602).
7. oil seal according to claim 6, it is characterised in that
The lateral wall of the dust excluder lips (110) is outward-dipping the bottom of to by pushing up, the madial walls of the dust excluder lips (110) from push up to bottom to
It is tilted.
8. oil seal according to any one of claim 1 to 5, it is characterised in that
The oil sealing body (10) is elastic oil sealing body, and the oil sealing body (10) is integrally formed.
A kind of 9. washing machine, it is characterised in that including：
Oil seal as any one of claim 1 to 8.
10. washing machine according to claim 9, it is characterised in that the washing machine also includes：
Drive shaft (70), the bearing and tripod (60) set around drive shaft (70)；
The oil seal is arranged between the tripod (60) and the bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720947472.7U CN207109362U (en) | 2017-08-01 | 2017-08-01 | Oil seal and washing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720947472.7U CN207109362U (en) | 2017-08-01 | 2017-08-01 | Oil seal and washing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207109362U true CN207109362U (en) | 2018-03-16 |
Family
ID=61572382
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720947472.7U Active CN207109362U (en) | 2017-08-01 | 2017-08-01 | Oil seal and washing machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114575090A (en) * | 2020-12-01 | 2022-06-03 | 无锡小天鹅电器有限公司 | Washing apparatus |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114575090A (en) * | 2020-12-01 | 2022-06-03 | 无锡小天鹅电器有限公司 | Washing apparatus |
| CN114575090B (en) * | 2020-12-01 | 2023-11-14 | 无锡小天鹅电器有限公司 | Washing apparatus |
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Effective date of registration: 20190710 Address after: No. 18 Changjiang South Road, National High-tech Development Zone, Xinwu District, Wuxi City, Jiangsu Province, 214000 Patentee after: Wuxi Swan Electrical Appliances Co., Ltd. Address before: 214028 No. 18 Changjiang South Road, Wuxi National High-tech Development Zone, Jiangsu Province Patentee before: Wuxi Xiaotianer Co., Ltd. |
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| TR01 | Transfer of patent right |