CN106350964B - Knob assembly and washing machine - Google Patents
Knob assembly and washing machine Download PDFInfo
- Publication number
- CN106350964B CN106350964B CN201510429226.8A CN201510429226A CN106350964B CN 106350964 B CN106350964 B CN 106350964B CN 201510429226 A CN201510429226 A CN 201510429226A CN 106350964 B CN106350964 B CN 106350964B
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- knob
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- adaptive
- bracket
- shell
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- 238000005406 washing Methods 0.000 title claims abstract description 13
- 238000005034 decoration Methods 0.000 claims description 11
- 239000000758 substrate Substances 0.000 claims description 7
- 239000004020 conductor Substances 0.000 claims 1
- 230000002265 prevention Effects 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 6
- 230000003044 adaptive effect Effects 0.000 description 13
- 230000000694 effects Effects 0.000 description 7
- 239000000463 material Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000009795 derivation Methods 0.000 description 1
- 235000021189 garnishes Nutrition 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
- D06F34/28—Arrangements for program selection, e.g. control panels therefor; Arrangements for indicating program parameters, e.g. the selected program or its progress
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
- Switches With Compound Operations (AREA)
- Switch Cases, Indication, And Locking (AREA)
Abstract
The invention provides a knob assembly and a washing machine, comprising an encoder, a knob bracket, a shell, a self-adaptive knob sleeve and a shell bracket; the ring body of the self-adaptive knob sleeve is provided with a fixing part and a clamping part which are oppositely arranged; the fixed part and the inner side of the ring body form an inverted trumpet-shaped structure; the fixed part of the self-adaptive knob sleeve is sleeved on the encoder; the shell bracket and the self-adaptive knob sleeve are coaxially arranged on the periphery of the encoder and are clamped and fixed by the clamping part of the self-adaptive knob sleeve; the self-adaptive knob sleeve is sleeved with the knob support. The rotary knob component takes the rotary knob bracket as an axis, and the shell bracket drives the self-adaptive rotary knob sleeve to rotate so as to drive the encoder to rotate; in the rotating process, external force and internal stress act on the knob bracket, and the fixing part in the shape of the inverted horn plays a role in relieving the external force and the internal stress to ensure that the encoder is not damaged; the knob support is a closed support, and the shell support covers the center hole of the knob support, so that the waterproof function of the knob assembly is realized.
Description
Technical Field
The invention relates to the technical field of circuit design, in particular to a knob assembly and a washing machine.
Background
The knob is widely applied to control panels of electric appliances such as washing machines and the like, and the purpose of controlling the electric appliances to work is achieved by rotating the knob.
As shown in fig. 1, the conventional knob assembly generally includes an encoder 01, a knob holder 02, and a housing 03; the center of the shell 03 is provided with a hollow cylinder 031, the cylinder 031 is directly sleeved on the encoder 01, the knob support 02 is coaxially sleeved on the periphery of the cylinder 031, and the top surface of the knob support abuts against the shell 03 to support the shell 03; when the device is used, the shell 03 is rotated, the encoder 01 is driven to rotate to generate different codes in the rotating process of the shell 03, different control signals are generated according to the different codes, and the purpose of control is achieved.
However, the conventional knob assembly has the following problems: 1. the shell 03 is positioned by the encoder 01, and external force born by the shell 03 is directly applied to the encoder 01, so that the encoder 01 is easily damaged; 2. the positioning reference of the knob support 02 and the positioning reference of the shell 03 are not uniform, the damage of the encoder 01 can be accelerated by the internal assembly stress, and the service life of the knob assembly is shortened.
Disclosure of Invention
The embodiment of the application provides a knob subassembly and washing machine to solve among the prior art to the outside control power of knob subassembly and the direct action of internal assembly stress on the encoder, cause the problem that the encoder damaged easily.
In order to solve the above technical problem, the embodiment of the present application is implemented by using the following technical solutions:
a knob assembly is provided, which comprises an encoder, a knob bracket and a first shell; the encoder is fixed on the circuit substrate; the self-adaptive knob sleeve and the shell bracket are also included; the self-adaptive knob sleeve is annular, and a ring body of the self-adaptive knob sleeve is provided with a fixing part and a clamping part which are oppositely arranged; the fixing part is bent from the lower end of the ring body and extends into the ring body to form a U-shaped structure with the inner side of the ring body, and the fixing part is inclined towards the center direction of the ring body, so that the U-shaped structure is in an inverted trumpet shape; the fixed part of the self-adaptive knob sleeve is sleeved on the encoder; the shell bracket and the self-adaptive knob sleeve are coaxially arranged on the periphery of the encoder and are clamped and fixed by the clamping part of the self-adaptive knob sleeve; the self-adaptive knob sleeve is sleeved with the knob bracket; the first housing is fixed to the periphery of the housing bracket.
Further, the knob holder is made of a light guide material.
Furthermore, the lower side of the knob support is provided with a plurality of light guide columns which are arranged at equal intervals.
Furthermore, the knob component also comprises a light-cross-proof diaphragm; the light-cross-preventing light-isolating ring is arranged at the lower end of the knob bracket; the light-string preventing diaphragm is provided with a plurality of light-shielding walls which are arranged at equal intervals, and each light-guiding column extends into the space between two light-shielding walls.
Further, the lower end of the shell bracket is provided with a hollow cylinder; the shell support quilt the self-adaptation knob cover the joint portion joint is fixed, specifically is: the cylinder cup joints in the periphery of encoder, the joint portion joint of self-adaptation knob cover is in the cylindrical periphery makes the shell support by the joint portion joint of self-adaptation knob cover is fixed.
Further, the knob support is a closed support structure with a hole in the center, and a groove with a downward opening is formed around the hole; the self-adaptive knob sleeve is sleeved on the knob support and specifically comprises: the groove outer side is provided with a protruding platform, the groove of the knob support is sleeved on the ring body of the self-adaptive knob sleeve, and the protruding platform is abutted to the shell support.
Further, the knob assembly also comprises a knob cover; the upper edge of the first housing has a projecting skirt that presses the knob cover between the top of the housing bracket and the first housing.
Further, the knob component also comprises a first decoration part; the first decoration part is arranged between the knob support and the shell support and is pressed at the upper end of the knob support by the outer edge of the shell support.
Furthermore, the knob component also comprises a second decorative part and a second shell; the second shell is arranged on the periphery of the knob bracket; the second decorative part is abutted against the upper end of the first decorative part by the inner edge of the second outer shell; the circuit substrate is mounted within the second housing.
A washing machine is provided, which comprises the knob assembly.
Compared with the prior art, the technical scheme provided by the embodiment of the application has the following technical effects or advantages: in the knob assembly and the washing machine provided by the embodiment of the application, the adaptive knob sleeve is fixed on the encoder by the fixing part in the shape of the inverted trumpet of the adaptive knob sleeve, the shell support is fixed on the adaptive knob sleeve by the clamping part, and the protruding platform of the adaptive knob sleeve abuts against the column of the shell support after the adaptive knob sleeve is sleeved on the knob support; the assembly relation ensures that the shell bracket takes the knob bracket as a positioning reference, and the knob bracket and the shell bracket adopt a uniform rotating shaft center to ensure that the rotation of the shell bracket takes the rotating bracket as the shaft center to rotate; the knob support is sleeved on the self-adaptive knob sleeve, so that the self-adaptive knob sleeve also takes the knob support as a positioning reference, and the knob support and the self-adaptive knob sleeve adopt a uniform rotating axis to ensure that the self-adaptive knob sleeve also rotates by taking the rotating support as the axis; when the first shell is rotated, the knob bracket is taken as a positioning reference, the self-adaptive knob sleeve is driven to rotate when the shell bracket rotates, and the encoder is driven to rotate when the self-adaptive knob sleeve rotates, so that the purpose of encoding is achieved; the structure taking the knob bracket as the rotating shaft center ensures that external force is not directly applied to the encoder, thereby ensuring that the encoder is not easy to damage; the inverted-horn-shaped fixing part of the self-adaptive knob sleeve can adapt to the influence of the deviation of the applied external force on the encoder, so that the quality of the encoder is ensured, and the quality and the use of a knob assembly product are improved; and because the knob support is the closed support, and the shell support has covered the centre bore of knob support for water can't enter into the knob subassembly inside from knob lid front and shell side, has realized waterproof function.
Drawings
FIG. 1 is a view showing an assembled structure of a knob in the prior art;
FIG. 2 is a side view of a knob assembly according to an embodiment of the present application;
FIG. 3 is a cross-sectional view of a knob assembly according to an embodiment of the present application;
fig. 4 is a schematic structural diagram of an iris diaphragm according to an embodiment of the present application.
Detailed Description
In order to better understand the technical solutions, the technical solutions will be described in detail below with reference to the drawings and specific embodiments.
As shown in fig. 2 and 3, a structure diagram of a knob assembly proposed in the embodiment of the present application includes an encoder 8, a knob holder 5, a first housing 3, an adaptive knob sleeve 7, and a housing holder 4; the encoder 8 is fixed on the circuit substrate; the self-adaptive knob sleeve 7 is annular, and a ring body of the self-adaptive knob sleeve is provided with a fixing part 71 and a clamping part 72 which are oppositely arranged; the fixing part 71 is bent from the lower end of the ring body and extends into the ring body to form a U-shaped structure with the inner side of the ring body, and the fixing part 71 inclines towards the center direction of the ring body to enable the U-shaped structure to be in an inverted horn shape; the fixed part 71 of the self-adaptive knob sleeve 7 is sleeved on the encoder 8; the shell bracket 4 and the adaptive knob sleeve 7 are coaxially arranged at the periphery of the encoder 8 and are clamped and fixed by a clamping part 72 of the adaptive knob sleeve 7; the self-adaptive knob sleeve 7 is sleeved with the knob bracket 5; the first housing 3 is fixed to the periphery of the housing bracket 4.
During assembly, the fixing part 71 of the adaptive knob sleeve 7 in the shape of an inverted horn is sleeved on the periphery of the encoder 8, so that the adaptive knob sleeve is fixedly connected with the encoder; the self-adaptive knob sleeve 7 fixed on the encoder 8 is sleeved with the knob support 5, and the shell support 4 is coaxially arranged on the periphery of the encoder 8, so that the clamping part 72 of the self-adaptive knob sleeve 7 is clamped on the shell support 4, and the clamping fixation of the shell support 4 and the self-adaptive knob sleeve 7 is realized; finally, the first housing 3 is fixed to the periphery of the housing holder 4.
When the first shell 3 is rotated, the shell support 4 rotates, the shell support 4 drives the self-adaptive knob sleeve 7 to rotate by taking the knob support 5 as an axis, and the self-adaptive knob sleeve 7 drives the encoder 8 to rotate by taking the knob support 5 as an axis, so that encoding of the encoder is realized.
The assembly structure with the knob bracket 5 as the rotating axis enables the positioning reference of the knob assembly to be consistent, thereby ensuring that small gaps among all parts of the knob assembly cannot be rubbed and rocked in the rotating process, avoiding the damage of the rubbing and the rocking to the encoder, compared with the mode that the knob bracket is directly fixed on the encoder in the prior art, the assembly of the assembly provided by the embodiment of the application is assembled with the encoder through the self-adaptive knob sleeve, and the knob bracket is taken as the axis, so that external force is not directly acted on the encoder, solving the problem that the rotation center of the knob and the center of the encoder are deviated due to assembly tolerance, avoiding the impact of the encoder by external force and the impact of assembly internal stress, the external force borne by the knob assembly is borne by the knob bracket, thereby ensuring the quality of the encoder and further ensuring the service life of the knob assembly, meanwhile, the quality and the grade of the product are improved, and a high use experience effect is realized.
And in the assembly method of the knob subassembly that this application embodiment provided, the self-adaptation knob cover cup joints on the encoder, and the self-adaptation knob cover cup joints with the knob support, and the shell support is by the joint portion joint of self-adaptation knob cover on the one hand, is by the outstanding platform butt of knob support on the one hand, and this makes the knob subassembly form locking structure, and all parts that can lock the knob subassembly after the installation finish make each part can not be pulled off because of receiving external force, have guaranteed the security and the quality of product.
Encoder 8, knob support 5, in the assembly process of self-adaptation knob cover 7 and shell support 4, there is the deviation all in each part installation, these deviations lead to also can have the deviation when using knob support 5 to unify the axle center, and the fixed part of self-adaptation knob cover 7 is the inverted horn shape, this kind can be solved because of the deviation that the assembly produced to the loudspeaker shape, realize the unity in axle center, and then can solve the product failure that the deviation caused, the production of cracking stress, product quality and experience effect have been improved.
In a specific embodiment, the lower end of the housing holder 4 has a hollow cylinder 41; the shell bracket 4 is clamped and fixed by the clamping part 72 of the self-adaptive knob sleeve 7, and specifically comprises the following steps: the cylinder 41 is sleeved on the periphery of the encoder 8, and the clamping portion 72 of the adaptive knob sleeve 7 is clamped on the periphery of the cylinder 41, so that the shell support 4 is clamped and fixed by the clamping portion 72 of the adaptive knob sleeve 7. The knob bracket 5 is a closed bracket structure with a hole at the center, and a groove 51 with a downward opening is arranged around the hole; self-adaptation knob cover 7 cup joints on knob support 5, specifically is: the groove 51 is provided with a protruding platform 52 outside, the groove 51 of the knob bracket 5 is sleeved on the ring body of the adaptive knob sleeve 7, and the protruding platform 52 is abutted on the shell bracket 4. At the upper edge of the first housing 3 there is a protruding skirt 31, which skirt 31 presses a knob cover 6 between the top of the housing bracket 4 and the first housing 3.
Because the knob bracket 5 is a closed bracket structure with a hole in the center, the periphery of the center hole is provided with a groove 51 with a downward opening, the outer side of the groove 51 is provided with a protruding table 52, the cylinder 41 of the shell bracket 4 passes through the center hole and is sleeved on the periphery of the encoder 8, the periphery of the cylinder 41 is abutted by the protruding table 52, and the first shell 3 arranged on the shell bracket 4 covers the center hole; therefore, if water exists on the front surface or the side surface of the knob, the locking structure prevents the water from entering the interior of the knob assembly, and further ensures that the circuit substrate is protected from being invaded by water vapor.
Due to the split design of the knob cover 6 and the first shell 3, the appearance design of the knob assembly can be diversified.
The knob subassembly that this application embodiment provided can also realize the light efficiency effect, specifically be through knob support 5 possess the leaded light function and realize. The knob support 5 is made of light guide materials, and the lower side of the knob support 5 is provided with a plurality of light guide columns 53 arranged at equal intervals; after the lower extreme of knob support 5 sets up the LED lamp, knob support 5 can be exported the light of LED lamp to the knob subassembly outside, realizes the effect of light efficiency.
In order to realize more diversified light efficiency, as shown in fig. 4, can set up at the lower extreme of knob support 5 and prevent the cluster light diaphragm 10, this prevent that cluster light diaphragm 10 has the light-insulated wall 101 of a plurality of equidistant settings, every leaded light post 53 on the knob support 5 stretches into between two light-insulated walls 101, the realization shows with the light isolation of every leaded light post derivation, thereby adjacent leaded light post can not produce the mixed light, can realize more diversified light efficiency effect.
The knob assembly provided by the embodiment of the application also comprises a first decoration part 1, a second decoration part 2 and a second outer shell 9; the first decorative part 1 is arranged between the knob bracket 5 and the shell bracket 4, and is pressed on the upper end of the knob bracket 5 by the outer edge of the shell bracket 4. The second shell 9 is arranged on the periphery of the knob bracket 5 and is fixedly connected with the knob bracket in a sealing and fixing way; the second decorative part 2 is abutted against the upper end of the first garnish 1 by the inner edge of the second housing 9; the circuit substrate is mounted in the second housing 9.
In the embodiment of the application, the first decoration part 1, the second decoration part 2, the first housing 3 and the knob cover 6 are all appearance decoration parts, and the number, the material and the shape of the parts are set according to design requirements.
The first decoration part 1 and the second decoration part 2 are fixed at the upper end of the knob support 5, so that the knob support 5 is used as a positioning reference, the friction and the shaking noise generated by the small assembly gap between the first shell 3 and the two decoration parts in the rotation process of the knob assembly can be avoided, and the product quality and the grade are improved.
Based on the knob assembly, the embodiment of the application further provides a washing machine, the washing machine is provided with the knob assembly, and the operation control of the washing machine is achieved through the knob assembly.
In the knob assembly and the washing machine provided by the embodiment of the application, all parts of the knob assembly rotate by taking the knob bracket as an axis, so that the external force exerted on the knob does not directly act on the encoder, the encoder is ensured not to be damaged, and the friction noise between the parts caused by non-uniform assembly reference is avoided; meanwhile, the self-adaptive knob sleeve in the shape of the inverted horn can resolve the deviation generated by external force and impact force between components, so that the quality of the product is ensured; meanwhile, in the assembly from bottom to top, the self-adaptive knob sleeve, the knob bracket and the shell bracket are locked with each other, so that on one hand, the knob part is not easy to pull, and on the other hand, the waterproof function is realized; when adopting leaded light material to make the knob support, the knob subassembly that this application embodiment provided still possesses the effect of realizing the light efficiency.
It should be noted that the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and those skilled in the art may make variations, modifications, additions or substitutions within the spirit and scope of the present invention.
Claims (10)
1. A knob assembly includes an encoder, a knob holder, and a first housing; the encoder is fixed on the circuit substrate; it is characterized by also comprising a self-adaptive knob sleeve and a shell bracket;
the self-adaptive knob sleeve is annular, and a ring body of the self-adaptive knob sleeve is provided with a fixing part and a clamping part which are oppositely arranged; the fixing part is bent from the lower end of the ring body and extends into the ring body to form a U-shaped structure with the inner side of the ring body, and the fixing part is inclined towards the center direction of the ring body, so that the U-shaped structure is in an inverted trumpet shape;
the fixed part of the self-adaptive knob sleeve is sleeved on the encoder; the shell bracket and the self-adaptive knob sleeve are coaxially arranged on the periphery of the encoder and are clamped and fixed by the clamping part of the self-adaptive knob sleeve;
the self-adaptive knob sleeve is sleeved with the knob bracket;
the first housing is fixed to the periphery of the housing bracket.
2. The knob assembly according to claim 1, wherein the knob holder is made of a light conductive material.
3. The knob assembly according to claim 2, wherein an underside of the knob holder has a plurality of equally spaced light guide posts.
4. The knob assembly according to claim 3, further comprising a light-crosstalk prevention diaphragm; the light-cross-preventing light-isolating ring is arranged at the lower end of the knob bracket; the light-string preventing diaphragm is provided with a plurality of light-shielding walls which are arranged at equal intervals, and each light-guiding column extends into the space between two light-shielding walls.
5. The knob assembly according to claim 1, wherein the housing bracket has a hollow cylinder at a lower end thereof; the shell support quilt the self-adaptation knob cover the joint portion joint is fixed, specifically is: the cylinder cup joints in the periphery of encoder, the joint portion joint of self-adaptation knob cover is in the cylindrical periphery makes the shell support by the joint portion joint of self-adaptation knob cover is fixed.
6. The knob assembly according to claim 1, wherein the knob holder is a closed holder structure having a hole in the center and a slot opening downward around the hole; the self-adaptive knob sleeve is sleeved on the knob support and specifically comprises: the groove outer side is provided with a protruding platform, the groove of the knob support is sleeved on the ring body of the self-adaptive knob sleeve, and the protruding platform is abutted to the shell support.
7. The knob assembly according to claim 1, further comprising a knob cover; the upper edge of the first housing has a projecting skirt that presses the knob cover between the top of the housing bracket and the first housing.
8. The knob assembly according to claim 1, further comprising a first decorative portion; the first decoration part is arranged between the knob support and the shell support and is pressed at the upper end of the knob support by the outer edge of the shell support.
9. The knob assembly according to claim 8, wherein the knob assembly further comprises a second decorative portion and a second housing; the second shell is arranged on the periphery of the knob bracket; the second decorative part is abutted against the upper end of the first decorative part by the inner edge of the second outer shell; the circuit substrate is mounted within the second housing.
10. A washing machine comprising a knob assembly according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510429226.8A CN106350964B (en) | 2015-07-21 | 2015-07-21 | Knob assembly and washing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510429226.8A CN106350964B (en) | 2015-07-21 | 2015-07-21 | Knob assembly and washing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106350964A CN106350964A (en) | 2017-01-25 |
| CN106350964B true CN106350964B (en) | 2020-06-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510429226.8A Active CN106350964B (en) | 2015-07-21 | 2015-07-21 | Knob assembly and washing machine |
Country Status (1)
| Country | Link |
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| CN (1) | CN106350964B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108797009A (en) * | 2017-04-26 | 2018-11-13 | 青岛海尔滚筒洗衣机有限公司 | The control module and washing machine of washing machine |
| CN108797011B (en) * | 2017-04-28 | 2021-12-10 | 佛山海尔滚筒洗衣机有限公司 | Washing machine knob assembly, assembling method and washing machine |
| CN112080897A (en) * | 2019-05-27 | 2020-12-15 | 青岛海尔滚筒洗衣机有限公司 | Knob assembly and washing machine applying same |
| CN110485121A (en) * | 2019-09-03 | 2019-11-22 | 珠海格力电器股份有限公司 | Knob assembly, control panel and the washing machine with it |
| CN112538723B (en) * | 2020-12-29 | 2022-03-25 | 无锡小天鹅电器有限公司 | Knob assembly and electrical equipment |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2224214Y (en) * | 1995-07-07 | 1996-04-10 | 中外合资合肥荣事达(集团)有限公司 | Linked button for washing machine |
| CN200985444Y (en) * | 2006-08-14 | 2007-12-05 | 南京乐金熊猫电器有限公司 | Washing machine knob positioning device |
| KR101395117B1 (en) * | 2007-03-29 | 2014-05-16 | 삼성전자주식회사 | Washing machine |
| CN202445095U (en) * | 2012-01-08 | 2012-09-26 | 贵州师范大学 | Flower stalk removal and section cutting clamp for roxburgh roses |
| CN203034257U (en) * | 2012-09-29 | 2013-07-03 | 海尔集团公司 | Electric appliance control switch assembly and washing machine including same |
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2015
- 2015-07-21 CN CN201510429226.8A patent/CN106350964B/en active Active
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| CN106350964A (en) | 2017-01-25 |
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Effective date of registration: 20201110 Address after: 266101 Haier Industrial Park, Haier Road, Laoshan District, Shandong, Qingdao, China Patentee after: QINGDAO HAIER DRUM WASHING MACHINE Co.,Ltd. Patentee after: Haier Smart Home Co., Ltd. Address before: 266101 Haier Industrial Park, Haier Road, Laoshan District, Shandong, Qingdao, China Patentee before: QINGDAO HAIER DRUM WASHING MACHINE Co.,Ltd. |
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