CN106702654A - Washing machine - Google Patents

Washing machine Download PDF

Info

Publication number
CN106702654A
CN106702654A CN201510771386.0A CN201510771386A CN106702654A CN 106702654 A CN106702654 A CN 106702654A CN 201510771386 A CN201510771386 A CN 201510771386A CN 106702654 A CN106702654 A CN 106702654A
Authority
CN
China
Prior art keywords
suspension
assembly
suspension assembly
washing machine
cylinder assembly
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
CN201510771386.0A
Other languages
Chinese (zh)
Other versions
CN106702654B (en
Inventor
张华�
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.)
Wuxi Little Swan Electric Co Ltd
Original Assignee
Wuxi Little Swan Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Wuxi Little Swan Co Ltd filed Critical Wuxi Little Swan Co Ltd
Priority to CN201510771386.0A priority Critical patent/CN106702654B/en
Publication of CN106702654A publication Critical patent/CN106702654A/en
Application granted granted Critical
Publication of CN106702654B publication Critical patent/CN106702654B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F17/00Washing machines having receptacles, stationary for washing purposes, wherein the washing action is effected solely by circulation or agitation of the washing liquid
    • D06F17/06Washing machines having receptacles, stationary for washing purposes, wherein the washing action is effected solely by circulation or agitation of the washing liquid by rotary impellers
    • 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

Landscapes

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

Abstract

The invention discloses a washing machine, which comprises a shell, a cylinder component in the shell, and a suspension system. The suspension system comprises at least one first suspension group and a number of second suspension groups. The first end and second end of each first suspension group are respectively connected with the middle-lower part of the shell and the middle-upper part of the cylinder component. The third end and fourth end of second suspension groups are respectively connected with the middle-upper part of the shell component and the middle-lower part of the cylinder component. According to the washing machine, setting the first suspension groups and the second suspension groups and restraining respectively the middle-upper and middle-lower parts of the cylinder component with them can reduce displacement of the cylinder component, promote the eccentric ability of the cylinder component, and avoid to readjust the design parameters such as the angle of the second suspension component and the stiffness of the spring because of the change of platform.

Description

Washing machine
Technical field
The present invention relates to wash technical field of electric appliances, specifically, more particularly to a kind of washing machine.
Background technology
In correlation technique, rotary drum washing machine passes through cylinder assembly bottom ball seat by cylinder assembly using four suspension rod suspensions, suspension rod Hang on casing.This kind of hang assembling is simple, but constrains weaker to cylinder assembly, and swinging easily occurs in cylinder assembly And torsion, especially low-speed stage often occur that cylinder assembly clashes into the situation of casing.
The content of the invention
It is contemplated that at least solving one of technical problem in correlation technique to a certain extent.Therefore, the purpose of the present invention It is to propose a kind of washing machine, the washing machine has simple structure, the characteristics of cylinder assembly displacement is small.
Washing machine according to embodiments of the present invention, including:Housing;Cylinder assembly, the cylinder assembly is located in the housing; And suspension arrangement, the suspension arrangement includes at least one first suspension assemblies and multiple second suspension assemblies, described in each The first end of the first suspension assembly and the second end are connected with the middle and lower part of the housing and the middle and upper part of the cylinder assembly respectively, 3rd end and the 4th end of each second suspension assembly respectively with the middle and upper part of the housing unit and the cylinder assembly Middle and lower part connects.
Washing machine according to embodiments of the present invention, by setting the first suspension assembly and the second suspension assembly, and hangs using first Hanging component and the second suspension assembly enter row constraint to the middle and upper part and middle and lower part of cylinder assembly respectively, can reduce cylinder assembly Displacement, lifts the eccentric ability of cylinder assembly, while can also avoid readjusting the second suspension assembly because of the change of platform Angle and spring the design parameter such as rigidity.
According to one embodiment of present invention, first suspension assembly is identical with the number of second suspension assembly.
Alternatively, first suspension assembly is interspersed with second suspension assembly.
Preferably, any one of first suspension assembly second suspension group adjacent with the first suspension assembly this described The distance of part is equal.
According to one embodiment of present invention, the first end is arranged on the bottom of the housing, and second end is arranged on institute State the top of cylinder assembly.
According to one embodiment of present invention, the elastic parts of first suspension assembly is located at the first end or described second End.
According to one embodiment of present invention, the 3rd end is arranged on the bottom of the cylinder assembly, the 4th end connection At the top of the housing.
According to one embodiment of present invention, the elastic parts of second suspension assembly is located at the 3rd end or the described 4th End.
According to one embodiment of present invention, first suspension assembly and/or second suspension assembly are elastic threads.
Brief description of the drawings
Fig. 1 is the structural representation of washing machine according to embodiments of the present invention;
Fig. 2 is the partial structural diagram of washing machine according to embodiments of the present invention;
Fig. 3 is the top view of the partial structurtes of washing machine in Fig. 2;
Fig. 4 is the partial structural diagram of washing machine according to embodiments of the present invention.
Reference:
Washing machine 100,
Housing 110, accommodating chamber 111,
Cylinder assembly 120,
First suspension assembly 130, first end 131, the second end 132,
Second suspension assembly 140, the 3rd end 141, the 4th end 142,
Elastic threads 150, elastic parts 160.
Specific embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings.Below with reference to accompanying drawing The embodiment of description is exemplary, it is intended to for explaining the present invention, and be not considered as limiting the invention.
Washing machine 100 according to embodiments of the present invention is described in detail below with reference to Fig. 1-Fig. 4.
As Figure 1-Figure 4, washing machine 100 according to embodiments of the present invention, including:Housing 110, cylinder assembly 120 And suspension arrangement.
Specifically, housing 110 limits an accommodating chamber 111.Cylinder assembly 120 is located in housing 110, that is to say, that Cylinder assembly 120 is located in the accommodating chamber 111 of the restriction of housing 110.Suspension arrangement includes at least one first suspension assemblies 130 With multiple second suspension assemblies 140, the end 132 of first end 131 and second of each the first suspension assembly 130 respectively with housing The middle and upper part connection of 110 middle and lower part and cylinder assembly 120, the 3rd end 141 and the 4th of each the second suspension assembly 140 End 142 is connected with the middle and upper part of the component of housing 110 and the middle and lower part of cylinder assembly 120 respectively.It is possible thereby to pass through first hang The suspension assembly 140 of hanging component 130 and second enters row constraint to the middle and upper part and middle and lower part of cylinder assembly 120 respectively, so as to subtract The displacement of small cylinder assembly 120, lifts the eccentric ability of cylinder assembly 120.
It should be noted that the two ends of the second suspension assembly 140 connect middle and upper part and the cylinder assembly 120 of housing 110 respectively Middle and lower part, can not only play fixed effect to cylinder assembly 120, but also can be under in cylinder assembly 120 Portion applies upward pulling force.Meanwhile, middle and upper part and the shell of connector drum component 120 are distinguished in the two ends of the first suspension assembly 130 The middle and lower part of body 110, by the pretightning force of rationally the first suspension assembly 130 of design, can make the first suspension assembly 130 pairs The middle and upper part of cylinder applies downward pulling force.Under the first suspension assembly 130 and the collective effect of the second suspension assembly 140, can To enter row constraint to cylinder assembly 120, reduce the displacement of cylinder assembly 120, lift the eccentric ability of cylinder assembly 120. And for different platforms, such as capacity of the cylinder assembly 120 of washing machine 100, it is only necessary to adjust the first suspension assembly 130 pretightning force can meet requirement.
Washing machine 100 according to embodiments of the present invention, by setting the first suspension assembly 130 and the second suspension assembly 140, and The middle and upper part and middle and lower part of cylinder assembly 120 are carried out about respectively using the first suspension assembly 130 and the second suspension assembly 140 Beam, can reduce the displacement of cylinder assembly 120, lift the eccentric ability of cylinder assembly 120, while can also avoid because flat The change of platform and readjust the design parameter such as the angle of the second suspension assembly 140 and the rigidity of spring.
In one embodiment of the invention, the first suspension assembly 130 is identical with the number of the second suspension assembly 140, thus It is easy to adjust the pretightning force of the first suspension assembly 130, effectively realizes the first suspension assembly 130 and the second suspension assembly 140 Constraint to cylinder assembly 120, so as to reduce the displacement of cylinder assembly 120, lifts the eccentric ability of cylinder assembly 120. Further, the first suspension assembly 130 is interspersed with the second suspension assembly 140, that is to say, that in cylinder assembly 120 Circumferential direction on, each first suspension assembly 130 is adjacent with the second suspension assembly 140, it is possible thereby to it is further just In the pretightning force for adjusting the first suspension assembly 130, the first suspension assembly 130 and the second suspension assembly 140 pairs are effectively realized The constraint of cylinder assembly 120, so as to further reduce the displacement of cylinder assembly 120, lifts the eccentric energy of cylinder assembly 120 Power.
Further, any one first suspension assembly 130 second suspension group adjacent with first suspension assembly 130 The distance of part 140 is equal.That is, in the circumferential direction of cylinder assembly 120, the interval point of the first suspension assembly 130 Cloth, the second suspension assembly 140 is spaced apart, and the distance between two adjacent first suspension assemblies 130 of any two are equal, The distance between two equal and adjacent the first suspension assemblies 130 of two adjacent the second suspension assemblies 140 of any two Between be provided with second suspension assembly 140, between second suspension assembly 140 and the two first suspension assemblies 130 Apart from equal.It is possible thereby to further be easy to adjust the pretightning force of the first suspension assembly 130, effectively realize first and hang Constraint of the suspension assembly 140 of hanging component 130 and second to cylinder assembly 120, so as to further reduce cylinder assembly 120 Displacement, lifted cylinder assembly 120 eccentric ability.
For example, in example as shown in Figure 1, Figure 2 and Figure 3, the first suspension assembly 130 and the second suspension assembly 140 Quantity it is identical and be two, the first suspension assembly 130 along cylinder assembly 120 circumferential equidistantly distributed, the second suspension Component 140 along cylinder assembly 120 circumferential equidistantly distributed, and the first suspension assembly 130 and the second adjacent suspension assembly 140 distance is equal.Thus it is easy to adjust the pretightning force of the first suspension assembly 130, effectively realizes the first suspension assembly 130 Constraint with the second suspension assembly 140 to cylinder assembly 120, so as to reduce the displacement of cylinder assembly 120.
In one embodiment of the invention, as shown in figure 1, first end 131 is arranged on the bottom of housing 110, the second end 132 tops for being arranged on cylinder assembly 120.That is, the first end 131 of the first suspension assembly 130 and housing 110 Bottom connection, the second end 132 of the first suspension assembly 130 is connected with the top of the periphery wall of cylinder assembly 120.Thus may be used So that by the pretightning force of rationally the first suspension assembly 130 of design, the first suspension assembly 130 can be played to cylinder assembly 120 Downward pulling force effect, realizes constraint of first suspension assembly 130 to cylinder assembly 120.Alternatively, the first suspension assembly 130 elastic parts 160 is located at the end 132 of first end 131 or second, it is possible thereby to increase the structure of the first suspension assembly 130 Diversity, can set the installation site of elastic component according to the inner space size of washing machine 100.
For example, in example as shown in Figure 1, the first end 131 of the first suspension assembly 130 connects with the bottom of housing 110 Connect, the second end 132 of the first suspension assembly 130 is connected with the top of the periphery wall of cylinder assembly 120.Elastic parts 160 sets At the second end 132 of the first suspension assembly 130.Certainly, the installation site not limited to this of elastic parts 160, elastic parts 160 first ends 131 that can also be located at the first suspension assembly 130.
In one embodiment of the invention, as shown in figure 1, the 3rd end 141 is arranged on the bottom of cylinder assembly 120, the Four ends 142 are connected to the top of housing 110.That is, the 3rd end 141 of the second suspension assembly 140 and cylinder assembly The bottom connection of 120 periphery walls, the 4th end 142 of the second suspension assembly 140 is connected with the top of housing 110.Thus second Suspension assembly 140 not only can play fixed effect to cylinder assembly 120, and cylinder assembly 120 can also be played upwards Pulling force effect, row constraint is entered to cylinder assembly 120.Alternatively, the elastic parts 160 of the second suspension assembly 140 is located at 3rd end 141 or the 4th end 142.It is possible thereby to increase the structure diversity of the second suspension assembly 140, can be according to laundry The inner space size of machine 100 sets the installation site of elastic component.
For example, in example as shown in Figure 1, the 3rd end 141 of the second suspension assembly 140 and the periphery of cylinder assembly 120 The bottom connection of wall, the 4th end 142 of the second suspension assembly 140 is connected with the top of housing 110.Elastic parts 160 is located at 4th end 142 of the second suspension assembly 140.Certainly, the installation site not limited to this of elastic parts 160, elastic parts 160 The 3rd end 141 of the second suspension assembly 140 can also be located at.
In some embodiments of the invention, the first suspension assembly 130 and/or the second suspension assembly 140 are elastic threads 150. In other words, the first suspension assembly 130 can be elastic threads 150, or the second suspension assembly 140 can be elastic threads 150, Or first suspension assembly 130 and the second suspension assembly 140 be elastic threads 150, it is possible thereby to increase many of suspension arrangement Sample.For example, in example as shown in Figure 4, the first suspension assembly 130 is elastic threads 150.
Describe a specific embodiment of washing machine 100 according to embodiments of the present invention in detail below with reference to Fig. 1-Fig. 3, under State description simply exemplary, it is intended to for explaining the present invention, and be not considered as limiting the invention.
As shown in Figure 1-Figure 3, washing machine 100 according to embodiments of the present invention includes:Housing 110, the and of cylinder assembly 120 Suspension arrangement.Housing 110 limits an accommodating chamber 111, and cylinder assembly 120 is located in accommodating chamber 111.Suspension arrangement Including two the first suspension assemblies 130 and two the second suspension assemblies 140.The first end 131 of the first suspension assembly 130 with The bottom of housing 110 connects, and the second end 132 is connected with the top of the periphery wall of cylinder assembly 120, and the first suspension assembly 130 Elastic parts 160 be located at the second end 132.3rd end 141 of the second suspension assembly 140 is connected with the top of housing 110, 4th end 142 is connected with the bottom of the periphery wall of cylinder assembly 120, and the elastic parts 160 of the second suspension assembly 140 sets At the 4th end 142.The distance between two adjacent the first suspension assemblies 130 of any two are equal, and any two is adjacent The distance between two the second suspension assemblies 140 are equal.First suspension assembly 130 is interspersed with the second suspension assembly 140, That is, second suspension assembly 140 is provided between two adjacent the first suspension assemblies 130, the second suspension group Part 140 is equal with the distance between the two the first suspension assemblies 130.Thus it is easy to adjust the pre- of the first suspension assembly 130 Clamp force, effectively realizes the constraint of the first suspension assembly 130 and the second suspension assembly 140 to cylinder assembly 120, so as to subtract The displacement of small cylinder assembly 120, lifts the eccentric ability of cylinder assembly 120.
In the description of the invention, it is to be understood that term " on ", D score, " top ", " bottom " " interior ", " outward ", " week To " etc. instruction orientation or position relationship be based on orientation shown in the drawings or position relationship, be for only for ease of description this hair Bright and simplified description, must be with specific orientation, with specific orientation rather than the device or element for indicating or imply meaning Construction and operation, therefore be not considered as limiting the invention.
Additionally, term " first ", " second " are only used for describing purpose, and it is not intended that indicating or implying relative importance Or the implicit quantity for indicating indicated technical characteristic.Thus, " first " is defined, the feature of " second " can be expressed Or implicitly include at least one this feature.In the description of the invention, " multiple " is meant that at least two, such as two It is individual, three etc., unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " fixation " Should be interpreted broadly Deng term, for example, it may be fixedly connected, or be detachably connected, or integrally;Can be Mechanically connect, or electrically connect or can communicate each other;Can be joined directly together, it is also possible to by the indirect phase of intermediary Even, can be two element internals connection or two interaction relationships of element, unless otherwise clearly restriction.For For one of ordinary skill in the art, above-mentioned term concrete meaning in the present invention can be as the case may be understood.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specific example ", Or the description of " some examples " etc. means to combine specific features, structure, material or feature that the embodiment or example are described It is contained at least one embodiment of the invention or example.In this manual, the schematic representation to above-mentioned term need not Identical embodiment or example must be directed to.And, the specific features of description, structure, material or feature can be with office Combined in an appropriate manner in one or more embodiments or example.Additionally, in the case of not conflicting, this area Technical staff can be tied the feature of the different embodiments or example described in this specification and different embodiments or example Close and combine.
Although embodiments of the invention have been shown and described above, it is to be understood that above-described embodiment be it is exemplary, It is not considered as limiting the invention, one of ordinary skill in the art within the scope of the invention can be to above-described embodiment It is changed, changes, replacing and modification.

Claims (9)

1. a kind of washing machine, it is characterised in that including:
Housing;
Cylinder assembly, the cylinder assembly is located in the housing;And
Suspension arrangement, the suspension arrangement includes at least one first suspension assemblies and multiple second suspension assemblies, described in each The first end of the first suspension assembly and the second end are connected with the middle and lower part of the housing and the middle and upper part of the cylinder assembly respectively, 3rd end and the 4th end of each second suspension assembly respectively with the middle and upper part of the housing unit and the cylinder assembly Middle and lower part connects.
2. washing machine according to claim 1, it is characterised in that first suspension assembly and the second suspension group The number of part is identical.
3. washing machine according to claim 2, it is characterised in that first suspension assembly and the second suspension group Part is interspersed.
4. washing machine according to claim 3, it is characterised in that any one of first suspension assembly with the institute The distance for stating adjacent second suspension assembly of the first suspension assembly is equal.
5. washing machine according to claim 1, it is characterised in that the first end is arranged on the bottom of the housing, Second end is arranged on the top of the cylinder assembly.
6. washing machine according to claim 1, it is characterised in that the elastic parts of first suspension assembly is located at institute State first end or second end.
7. washing machine according to claim 1, it is characterised in that the 3rd end is arranged on the bottom of the cylinder assembly Portion, the 4th end is connected to the top of the housing.
8. washing machine according to claim 1, it is characterised in that the elastic parts of second suspension assembly is located at institute State the 3rd end or the 4th end.
9. washing machine according to claim 1, it is characterised in that first suspension assembly and/or described second hang Hanging component is elastic threads.
CN201510771386.0A 2015-11-12 2015-11-12 Washing machine Active CN106702654B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510771386.0A CN106702654B (en) 2015-11-12 2015-11-12 Washing machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510771386.0A CN106702654B (en) 2015-11-12 2015-11-12 Washing machine

Publications (2)

Publication Number Publication Date
CN106702654A true CN106702654A (en) 2017-05-24
CN106702654B CN106702654B (en) 2020-01-17

Family

ID=58930022

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201510771386.0A Active CN106702654B (en) 2015-11-12 2015-11-12 Washing machine

Country Status (1)

Country Link
CN (1) CN106702654B (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1442556A (en) * 2002-03-05 2003-09-17 乐金电子(天津)电器有限公司 Oscillating damper of washtub inclined type washing machine
EP1832677A3 (en) * 2000-08-05 2010-04-14 LG Electronics Inc. Washing machine with device for data exchange to/from external device
CN201546064U (en) * 2009-10-16 2010-08-11 合肥荣事达洗衣设备制造有限公司 Novel washing machine balance system
CN103015121A (en) * 2013-01-04 2013-04-03 宁波市镇海怡福莱文化创意有限公司 Simple washing machine
CN104746296A (en) * 2013-12-26 2015-07-01 东部大宇电子株式会社 Apparatus For Reduction Vibration In Washing Machine
CN205188627U (en) * 2015-11-12 2016-04-27 无锡小天鹅股份有限公司 Washing machine

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1832677A3 (en) * 2000-08-05 2010-04-14 LG Electronics Inc. Washing machine with device for data exchange to/from external device
CN1442556A (en) * 2002-03-05 2003-09-17 乐金电子(天津)电器有限公司 Oscillating damper of washtub inclined type washing machine
CN201546064U (en) * 2009-10-16 2010-08-11 合肥荣事达洗衣设备制造有限公司 Novel washing machine balance system
CN103015121A (en) * 2013-01-04 2013-04-03 宁波市镇海怡福莱文化创意有限公司 Simple washing machine
CN104746296A (en) * 2013-12-26 2015-07-01 东部大宇电子株式会社 Apparatus For Reduction Vibration In Washing Machine
CN205188627U (en) * 2015-11-12 2016-04-27 无锡小天鹅股份有限公司 Washing machine

Also Published As

Publication number Publication date
CN106702654B (en) 2020-01-17

Similar Documents

Publication Publication Date Title
US20160024705A1 (en) Non-cylindrical damping element suspension
RU2276297C1 (en) Rubber vibration isolator for machine tools
CN101311097A (en) Sheave support device for elevator
CN107044385A (en) A kind of installation method of the anti-vortex-induced vibration damping of blower fan tower barrel
CN106702654A (en) Washing machine
CN106103333A (en) Jib system and traveling hoist for traveling hoist
US20150090249A1 (en) Burner for a gas-heated cooking appliance
US8746016B2 (en) Suspension system for washing machines
CN205188627U (en) Washing machine
CN107431414A (en) Motor
CN103287948A (en) Space-saving elevator
CN106149294A (en) For the resilient suspension system of washing machine and the washing machine with it
CN206943322U (en) The isolation mounting of actuating unit and the electric automobile comprising the isolation mounting
EP2628840B1 (en) Washing machine with improved damper apparatus
RU2533372C1 (en) Equifrequent resilient element of ring type
CN209046506U (en) Converter cabinet
US10468173B2 (en) Support device of an active part of a current transformer
JP4779766B2 (en) Wind power generator
CN109778495B (en) Clothes treating apparatus
CN207294016U (en) A kind of clothes hanger wire jumping prevention hand-operated device
CN107974804A (en) A kind of washing machine and its laundry machine barrel
CN106222963A (en) Base for device for clothing processing processes assembly with the medicated clothing with it
EP3899125B1 (en) A top cover for laundry washer-dryer
CN107794619A (en) A kind of overturning-preventing spinning creel
CN109629169A (en) A kind of more washing machines

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
TA01 Transfer of patent application right
TA01 Transfer of patent application right

Effective date of registration: 20190807

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 Wuxi Changjiang Road, Wuxi New District, Jiangsu, No. 18

Applicant before: Wuxi Xiaotianer Co., Ltd.

GR01 Patent grant
GR01 Patent grant