CN107663741A - Hang shock mitigation system and washing machine - Google Patents
Hang shock mitigation system and washing machine Download PDFInfo
- Publication number
- CN107663741A CN107663741A CN201710928802.2A CN201710928802A CN107663741A CN 107663741 A CN107663741 A CN 107663741A CN 201710928802 A CN201710928802 A CN 201710928802A CN 107663741 A CN107663741 A CN 107663741A
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- China
- Prior art keywords
- hole
- hanger bar
- mitigation system
- shock mitigation
- damping
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Classifications
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- 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
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Vibration Prevention Devices (AREA)
- Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
Abstract
The present invention relates to life field of household appliances, and disclosing a kind of suspension shock mitigation system and washing machine, the suspension shock mitigation system includes hanger bar (2) and the damper assembly being arranged in the hanger bar, and the damper assembly includes：Ball seat (10), retainer (20), damped elasticity part (30), at least part of the inner peripheral surface of the ball seat (10) are crimped on retainer (20)；The retainer (20) includes the damping adjustment portion that can be contacted with the hanger bar (2) face, wherein, when the ball seat (10) stress is mobile to the retainer (20), change in friction force between the damping adjustment portion (3) and the hanger bar (2), and damping force is set to change corresponding to ball seat (10) stress, can either effective abatement system shock energy, avoid complete machine vibrating noise larger, hit bucket, displacement etc., suspension motion can also be effectively driven, vibrations are avoided to be transmitted on washing machine shell, produce abnormal sound or vibrations.
Description
Technical field
The present invention relates to life field of household appliances, has the suspension shock mitigation system more particularly to suspension shock mitigation system and reference
Washing machine.
Background technology
As washing machine is more and more common, frequency of use also more and more higher, not only require that washing machine can be applied neatly
In various wash loads, such as the small wash load such as wash load or a small amount of shirt, and user couple greatly such as quilt cover, down jackets
The requirement also more and more higher of noise is run, being also contemplated that can undisturbedly run at night.
Present Wave wheel stirring type washing machine uses top releasing type more, using shock mitigation system is hung, carries out damping to lower
Noise.Shock mitigation system, also known as hanger rod component are hung, primarily now there are three kinds：Air type suspension rod, there is independent frictional damping list
Member frictional suspension rod and without independent damping unit spring suspension rod.Wherein, frictional suspension rod is because its is simple in construction, cost
It is low, noise is low, and be commonly used.
But because the damping force of the frictional damping unit in frictional suspension rod is approximately steady state value in the course of the work,
It is difficult to load is changing always when adapting to laundry machine dehydration, all almost different operating mode, whole suspension subtract each workload
Shake system only can be only achieved optimal damping effect in the case of the certain loads of matching washing machine, can not take into account washing heavy load and
Two kinds of extreme operating conditions of small load.Such as in order to adapt to small wash load, and the initial damping force setting for hanging shock mitigation system is smaller,
When load or it is eccentric larger when, damping force is difficult to effective abatement system shock energy, causes that complete machine vibrating noise is larger, hits bucket, moves
Position etc.；Such as in order to adapt to big wash load, and the initial damping force for hanging shock mitigation system is set to bigger than normal, the hardly possible when loading smaller
In effectively driving suspension motion, and cause excessive vibrations to be transmitted on washing machine shell, produce abnormal sound or vibrations.
It is contemplated that to solve the above problems, change can be loaded with washing machine and automatically adjust by providing a kind of damping force
Suspension, to realize that washing machine is respectively provided with good damping effect under different loads.
The content of the invention
The invention aims to overcome the damping hung existing for prior art in shock mitigation system can not be with washing machine
Load changes and changed, and can not effectively carry out the problem of damping, there is provided a kind of hanging vibration reduction system, the hanging vibration reduction system energy
It is enough to play good damping effect under different loads.
To achieve these goals, one aspect of the present invention provides a kind of suspension shock mitigation system, and the suspension shock mitigation system includes
Hanger bar and the damper assembly being arranged in the hanger bar, the damper assembly include：Ball seat, the ball seat include being used to accommodate
The through hole of the hanger bar, for contacted with bucket outer wall face supporting part, be arranged on the auxiliary section of the opposite side of the supporting part；
Retainer, the retainer include that the damping adjustment portion of the hanger bar can be accommodated, and the inner peripheral surface of the auxiliary section is at least partly
It is crimped on the outer peripheral face of the damping adjustment portion, is provided with rubbing hole in the damping adjustment portion, running through in the rubbing hole has
The outer peripheral face of the hanger bar, the inner peripheral surface of the rubbing hole and the hanger bar corresponding with the inner peripheral surface contacts with each other；Resistance
Buddhist nun's elastic component, one end of the damped elasticity part are connected on the retainer, and the other end is connected to the lower end of the auxiliary section, its
In, when the ball seat stress moves along the hanger bar, the frictional force between the damping adjustment portion and the hanger bar becomes
Change.
Preferably, the damping adjustment portion includes damping adjustment hole and the friction member being arranged in the damping adjustment hole,
The friction member is elastomer, and the rubbing hole with the damping adjustment hole arranged coaxial is provided with the friction member.
Preferably, formed with the receiving circumferential groove for accommodating the damped elasticity part, the receiving circumferential groove on the retainer
With the damping adjustment hole arranged coaxial.
Preferably, formed with inwall between the damping adjustment hole and the receiving circumferential groove, formed with more on the inwall
Individual elastic groove.
Preferably, at least partly formed with bearing surface on the inner peripheral surface of the auxiliary section, plane where the bearing surface with
The axis of the hanger bar intersects, and mating surface corresponding with the bearing surface is formed on the outer peripheral face of the damping adjustment portion.
Preferably, the bearing surface and the mating surface are the conical surface.
Preferably, the damping adjustment hole is stepped hole, including for accommodating the hole that is engaged of the friction member, and set
Put the positioning hole that can run through for the hanger bar below the hole that is engaged, and the counterweight being arranged on below the positioning hole
Hole, the inner peripheral surface in the hole that is engaged contact with the outer peripheral face of the friction member.
Preferably, the top of the hanger bar is provided with the suspension pin for being connected with washer cabinet or frame；Institute
The bottom for stating hanger bar is provided with spring base, and the suspension shock mitigation system includes damping elastomer part, and the one of the damping elastomer part
End is connected to the lower surface of the retainer, and the other end is connected on the spring base.
Preferably, the damping elastomer part is spring, and the bottom of the retainer is provided with spring-housing groove.
Second aspect of the present invention provides a kind of washing machine, and the washing machine includes washer cabinet or frame, washing machine
Staving and the suspension shock mitigation system according to any one in above-mentioned technical proposal.
Pass through above-mentioned technical proposal, the friction member can be made when load change suffered by ball seat moves to retainer by footpath
To extruding, and damping force is corresponded to load change, so as to effective abatement system shock energy, avoid complete machine vibrating noise compared with
Greatly, bucket, displacement etc. are hit, additionally it is possible to effectively drive suspension motion, avoid vibrations from being transmitted on washing machine shell, produce different
Ring or shake.
Brief description of the drawings
Fig. 1 is a kind of structural representation of embodiment of hanging vibration reduction system of the present invention；
Fig. 2 is a kind of stereogram of embodiment of retainer 20 of the present invention.
Fig. 3 is a kind of top view of embodiment of retainer 20 of the present invention.
Fig. 4 is a kind of stereogram of embodiment of ball seat 10 of the present invention.
Fig. 5 is a kind of sectional view of embodiment of ball seat 10 of the present invention.
Fig. 6 is a kind of specific embodiment party of damper assembly of the present invention (damped elasticity part 30 and friction member 40 not shown)
The sectional view of formula.
Fig. 7 is a kind of sectional view of embodiment of damping adjustment portion 3 of the present invention.
Description of reference numerals
The 1 suspension hanger bar of pin 2
The spring base of 7 damping elastomer part 8
The through hole of 10 ball seat 11
The auxiliary section of 12 supporting part 13
20 retainers
21 damping adjustment holes 211 are engaged hole
212 positioning holes 213 match somebody with somebody repeated hole
22 accommodate the inwall of circumferential groove 23
The bottom wall of 24 outer wall 25
26 step convex walls
The spring-housing groove of 28 elastic groove 29
30 damped elasticity parts
The rubbing hole of 40 friction member 41
Embodiment
In the present invention, the noun of locality used as " upper and lower, left and right " typically refer to shown in refer to the attached drawing it is upper and lower, left,
It is right；" inside and outside " refers to the inside and outside of the profile relative to each part in itself.In addition, term " first ", " second " are only used for describing
Purpose, and it is not intended that instruction or hint relative importance or the implicit quantity for indicating indicated technical characteristic.
The present invention provides a kind of suspension shock mitigation system, as shown in figure 1, the suspension shock mitigation system includes hanger bar 2 and set
Damper assembly in hanger bar 2, the damper assembly include ball seat 10, retainer 20, damped elasticity part 30, specifically, ball
Seat 10 include be used for accommodate hanger bar 2 through holes 11, for contacted with bucket outer wall face supporting part 12, be arranged on supporting part 12
The auxiliary section 13 of opposite side；Retainer 20 includes the damping adjustment portion 3 that can be contacted with the face of hanger bar 2, the auxiliary section
On the outer peripheral face 331 of at least part crimping damping adjustment portion of 13 inner peripheral surface 131；Friction is provided with the damping adjustment portion 3
Hole 41, through there is hanger bar 2 in the rubbing hole 41, the inner peripheral surface of the rubbing hole 41 and hanger bar 2 corresponding with the inner peripheral surface
Outer peripheral face is contacted with each other, and one end of the damped elasticity part 30 is connected on retainer 20, and the other end is connected to the auxiliary section 13
Bottom surface, wherein, when the stress of ball seat 10 moves along hanger bar 2, it is described damping adjustment portion 3 and hanger bar 2 between frictional force
Change.
Staving refers to be used to accommodate washing tube of laundry item etc. in washing machine.When placed different weight in staving
Washed, that is, the load suffered by supporting part 12 for being used to contact with bucket outer wall face changes, and makes the damping of mutual face contact
The outer peripheral face 331 of adjustment portion 3 changes with the contact situation of the inner peripheral surface 131 of auxiliary section 13.The change of the contact situation is led to
Overdamp adjustment portion 3 be delivered to is arranged on damping adjustment portion 3 in rubbing hole 41 inner peripheral surface on, and make damping adjustment portion 3 with
Frictional force between hanger bar 2 changes, the frictional force be hang shock mitigation system damping force, and enable damping force with
The different of the weight for the clothing being placed in staving and accordingly change, so as to take into account washing heavy load and small two kinds of load
Extreme operating condition.
When no matter load is small wash load or big wash load, the damping force of suspension shock mitigation system of the present invention is equal
It can become smaller or larger with load, i.e., by damper assembly of the present invention, can make damping force accordingly and staving
Suffered load change, and can either effective abatement system shock energy, avoid that complete machine vibrating noise is larger, hit bucket, displacement etc., moreover it is possible to
Suspension motion is enough effectively driven, avoids vibrations from being transmitted on washing machine shell, produces abnormal sound or vibrations.
The damping adjustment portion 3 may be integrally formed on retainer 20.In order that the change (pressure) of contact situation
It can be delivered to by damping adjustment portion 3 with its contact surface with hanger bar 2 to make frictional force change, preferably damping regulation
Portion 3 is the material for being easier to deformation.Retainer 20 can be molded by processing modes such as double ejection formations.
As a preferred embodiment, as shown in fig. 7, the damping adjustment portion 3 includes damping adjustment hole 21 and set
Put the friction member 40 in adjustment hole 21 is damped, the friction member 40 is elastomer, be provided with the friction member 40 with it is described
Damp the rubbing hole 41 of the arranged coaxial of adjustment hole 21., can be according to institute by the way that friction member 40 is separately provided with respect to retainer 20
It need to damp and neatly change friction member 40 with different elasticities.And can be when the inner surface of friction member 40 wears, only
Friction member 40 need to be replaced, the quantity of renewal part during so as to reduce maintenance.In addition, by the way that the He of adjustment hole 21 will be damped
The receiving arranged coaxial of circumferential groove 22, so as to ball seat 10 when being axially moveable, hanger bar 2 is delivered to by retainer 20
On power be uniform in the circumferential.One end of the other damped elasticity part 30 is connected to the bottom surface of the receiving circumferential groove 22.
Auxiliary section 13 and damped elasticity part 30 can be preferably kept using the structure, improves the reliability of damper assembly.
Damp between adjustment hole 21 and receiving circumferential groove 22 formed with inwall 23, in order that the outer peripheral face of the inwall of retainer 20
Deformation can be easily produced when by radial component so as to which internal diameter changes, makes the damping adjustment hole 21 of retainer 20 to rubbing
The chucking power for wiping part changes, formed with multiple elastic grooves 28 on preferably described inwall 23.As shown in Figures 2 and 3, the elasticity
Groove 28 is 3, is evenly distributed on inwall 23.Further preferably, the elastic groove 28 extends to the bottom for accommodating circumferential groove 22, from
And make the transmission of power more easy.
Because one end of damped elasticity part 30 is connected to the bottom surface of receiving circumferential groove 22, i.e., on bottom wall 25, the other end is connected to
The lower end of auxiliary section 13, when loading relatively small, the pressure being delivered to by auxiliary section 13 on damped elasticity part 30 is also smaller,
I.e. auxiliary section 13 be pressed into accommodate circumferential groove 22 depth it is shallower so that the outer peripheral face of the inner peripheral surface of auxiliary section 13 and inwall 23
Contact area is smaller.Now, the chucking power being applied to by inwall 23 on friction member 40 is also relatively small, when friction member 40 is relative
It is also smaller that hanger bar 2 moves caused frictional force.When loading relatively large, damped elasticity part is delivered to by auxiliary section 13
Pressure on 30 is also larger, i.e., auxiliary section 13 be pressed into accommodate circumferential groove 22 depth it is deeper so that the inner peripheral surface of auxiliary section 13
131 is larger with the contact area of the outer peripheral face 331 of inwall 23.Now, the chucking power on friction member 40 is applied to by inwall 23
Also it is relatively large, when friction member 40 with respect to hanger bar 2 move caused by frictional force it is also larger.
As one embodiment of the present invention, at least partly formed with abutting on the inner peripheral surface 131 of the auxiliary section 13
Face 1311, the bearing surface 1311 can be that curved surface also can be plane, and preferably the plane where the bearing surface 1311 is hanged with described
The axis of peg 2 intersects, and is formed and the 1311 corresponding mating surface of bearing surface on the outer peripheral face 331 of the damping adjustment portion 3
3311.For example, auxiliary section 13 is only partly formed as inclined-plane, when inclined-plane moves down, axial force can also decomposite radially
Active force, pressing damping adjustment portion 3 makes damping adjustment portion 3 become big relative to the pressure of the side face of hanger bar 2.It is in addition, such
Can also there be multiple conduct bearing surfaces 1311 on inclined-plane, be uniformly distributed circumferentially, in addition, the inclined-plane can be formed in the same conical surface
On, also it can be formed on the different conical surfaces.
As the present invention a kind of preferred embodiment, the bearing surface 1311 and the mating surface 3311 are the conical surface.
As shown in Figure 5 and Figure 6, the inner peripheral surface 131 of the auxiliary section 13 is all formed as the conical surface.As shown in Figure 6 and Figure 7, inwall 23
The outer peripheral face be the conical surface so that axial force can decomposite active force radially by the conical surface, with extrusion friction part
40, frictional force when hanger bar 2 and the relative movement of friction member 40 is changed, so as to effectively cancel out washing machine operation when institute
Caused vibrations.
As shown in Fig. 2, Fig. 4 and Fig. 5, the conical surface of ball seat 10 and the conical surface of retainer 20 are circular conical surface.When ball seat 10
Supporting part 12 is moved, the axial force is decomposed along the conical surface to contact with each other, because the conical surface is by axial force relative to retainer 20
Circular conical surface, that is to say, that have uniform radial component in the circumferential, so as to make the side face of the rubbing hole 41 of friction member 40 equal
Even contact suspension bar, form smoothly vibration damping.
As a kind of preferred embodiment, as shown in fig. 6, the damping adjustment hole 21 is stepped hole, including with
In accommodating the hole 211 that is engaged of the friction member 40, and be arranged on the lower section of hole 211 that is engaged can be for the hanger bar
2 positioning holes 212 run through, and be arranged on the lower section of positioning hole 212 match somebody with somebody repeated hole 213, the inner peripheral surface in the hole 211 that is engaged and
The outer peripheral face contact of the friction member 40.The positioning hole 212 and it is applied between hanger bar 2 therein formed with gap.Rub
Part 40 is wiped by hole 211 and being supported positioned at being engaged with the step convex wall 26 between repeated hole 213.
It is preferred that the hole 211 and roughly the same with the aperture of repeated hole 213 of being engaged, and elastic groove 28 is applied in the hole that is engaged
The part of inwall 23 where 211, and part is applied in the part of inwall 23 where repeated hole 213, makes inwall 23 by ball
The power that seat 10 is applied is more easily to deform.
On the basis of above-mentioned technical proposal, the top of hanger bar 2 is provided with for connecting with washer cabinet or frame
The suspension pin 1 connect, the bottom of hanger bar 2 are provided with spring base 8, and the suspension shock mitigation system includes damping elastomer part 7, vibration damping bullet
One end of property part 7 is connected to the lower surface of retainer 20, and the other end is connected on spring base 8.By the structure, it can buffer and wash
Vibrated caused by the dehydration of clothing machine complete machine.
It is preferred that damping elastomer part 7 is spring, and by the spring-housing groove 29 set by the bottom of retainer 20, more preferably
Ground is held the spring in hanger bar 2.
The present invention also provides a kind of washing machine, the washing machine include washer cabinet or frame, washing machine drum body and
Suspension shock mitigation system according to any one in above-mentioned technical proposal.
The preferred embodiment of the present invention is described in detail above in association with accompanying drawing, still, the present invention is not limited thereto.At this
In the range of the technology design of invention, a variety of simple variants, including each particular technique can be carried out to technical scheme
Feature is combined in any suitable manner.In order to avoid unnecessary repetition, the present invention is to various combinations of possible ways
No longer separately illustrate.But these simple variants and combination should equally be considered as content disclosed in this invention, belong to the present invention
Protection domain.
Claims (10)
1. one kind suspension shock mitigation system, the suspension shock mitigation system include hanger bar (2) and the resistance being arranged in the hanger bar (2)
Buddhist nun's component, it is characterised in that the damper assembly includes：
Ball seat (10), the ball seat (10) include being used to accommodate the through hole (11) of the hanger bar (2), for connecing with bucket outer wall face
Tactile supporting part (12), the auxiliary section (13) for being arranged on the opposite side of the supporting part (12)；
Retainer (20), the retainer (20) includes the damping adjustment portion (3) that can be contacted with the hanger bar (2) face, described
The inner peripheral surface (131) of auxiliary section (13) is at least partly crimped on the outer peripheral face (331) of the damping adjustment portion (3), the resistance
Rubbing hole (41) is provided with Buddhist nun's adjustment portion (3), running through in the rubbing hole (41) has the hanger bar (2), the rubbing hole
(41) inner peripheral surface and the outer peripheral face of the hanger bar (2) corresponding with the inner peripheral surface contacts with each other；
Damped elasticity part (30), one end of the damped elasticity part (30) are connected on the retainer (20), and the other end is connected to
The lower end of the auxiliary section (13),
Wherein, when the ball seat (10) stress is mobile along the hanger bar (2), the damping adjustment portion (3) and the suspension
Change in friction force between bar (2).
2. suspension shock mitigation system according to claim 1, it is characterised in that the damping adjustment portion (3) includes damping and adjusted
Knothole (21) and the friction member (40) being arranged in the damping adjustment hole (21), the friction member (40) is elastomer, described
The rubbing hole (41) with described damping adjustment hole (21) arranged coaxial is provided with friction member (40).
3. suspension shock mitigation system according to claim 2, it is characterised in that formed with for holding on the retainer (20)
Receive the receiving circumferential groove (22) of the damped elasticity part (30), the receiving circumferential groove (22) with the damping adjustment hole (21) is coaxial matches somebody with somebody
Put.
4. suspension shock mitigation system according to claim 3, it is characterised in that the damping adjustment hole (21) and the receiving
Formed with inwall (23) between circumferential groove (22), formed with multiple elastic grooves (28) on the inwall (23).
5. suspension shock mitigation system according to claim 1, it is characterised in that the inner peripheral surface (131) of the auxiliary section (13)
Upper at least part formed with bearing surface (1311), with the axis of the hanger bar (2) intersect by the face where the bearing surface (1311),
Mating surface (3311) corresponding with the bearing surface (1311) is formed on the outer peripheral face (331) of the damping adjustment portion (3).
6. suspension shock mitigation system according to claim 5, it is characterised in that the bearing surface (1311) and the mating surface
(3311) it is the conical surface.
7. suspension shock mitigation system according to claim 2, it is characterised in that the damping adjustment hole (21) is stepped hole,
Including for accommodating the hole that is engaged (211) of the friction member (40), and be arranged on below the hole that is engaged (211) can
The positioning hole (212) run through for the hanger bar (2), and be arranged on below the positioning hole (212) and match somebody with somebody repeated hole (213), institute
The inner peripheral surface for stating the hole that is engaged (211) contacts with the outer peripheral face of the friction member (40).
8. suspension shock mitigation system according to claim 1, it is characterised in that the top of the hanger bar (2) is provided with use
In the suspension pin (1) being connected with washer cabinet or frame；The bottom of the hanger bar (2) is provided with spring base (8), described
Suspension shock mitigation system includes damping elastomer part (7), and one end of the damping elastomer part (7) is connected under the retainer (20)
End face, the other end are connected on the spring base (8).
9. suspension shock mitigation system according to claim 8, it is characterised in that the damping elastomer part (7) is spring, described
The bottom of retainer (20) is provided with spring-housing groove (29).
10. a kind of washing machine, the washing machine includes washer cabinet or frame, washing machine drum body and according to claim 1-
Suspension shock mitigation system in 9 described in any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710928802.2A CN107663741B (en) | 2017-10-09 | 2017-10-09 | Hang shock mitigation system and washing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710928802.2A CN107663741B (en) | 2017-10-09 | 2017-10-09 | Hang shock mitigation system and washing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107663741A true CN107663741A (en) | 2018-02-06 |
| CN107663741B CN107663741B (en) | 2019-08-16 |
Family
ID=61097610
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710928802.2A Active CN107663741B (en) | 2017-10-09 | 2017-10-09 | Hang shock mitigation system and washing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107663741B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109914069A (en) * | 2018-12-10 | 2019-06-21 | 昌邑市永富弹簧有限公司 | Hanger rod component of washing machine and its washing machine with adaptive damping function |
| CN111101337A (en) * | 2020-02-10 | 2020-05-05 | 海信（山东）冰箱有限公司 | Washing machine |
| CN112342743A (en) * | 2019-08-09 | 2021-02-09 | 青岛海尔洗衣机有限公司 | Washing machine and vibration damper thereof |
| CN112458700A (en) * | 2019-09-09 | 2021-03-09 | Lg电子株式会社 | Clothes treating device |
| CN117021863A (en) * | 2023-10-07 | 2023-11-10 | 之江实验室 | Damping-adjustable suspension device and wheeled robot |
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| CN117021863A (en) * | 2023-10-07 | 2023-11-10 | 之江实验室 | Damping-adjustable suspension device and wheeled robot |
| CN117021863B (en) * | 2023-10-07 | 2024-01-16 | 之江实验室 | Damping-adjustable suspension device and wheeled robot |
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| CN107663741B (en) | 2019-08-16 |
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Effective date of registration: 20190715 Address after: 214028 No. 18 Changjiang South Road, Wuxi National High-tech Development Zone, Jiangsu Province Applicant after: Wuxi Swan Electrical Appliances Co., Ltd. Address before: 214028 No. 18 Changjiang South Road, Wuxi National High-tech Development Zone, Jiangsu Province Applicant before: Wuxi Xiaotianer Co., Ltd. |
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