CN111254627B - Double-drum washing machine - Google Patents
Double-drum washing machine Download PDFInfo
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- CN111254627B CN111254627B CN202010096026.6A CN202010096026A CN111254627B CN 111254627 B CN111254627 B CN 111254627B CN 202010096026 A CN202010096026 A CN 202010096026A CN 111254627 B CN111254627 B CN 111254627B
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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
- D06F23/00—Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry
- D06F23/04—Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry and rotating or oscillating about a vertical axis
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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
- D06F37/02—Rotary receptacles, e.g. drums
- D06F37/12—Rotary receptacles, e.g. drums adapted for rotation or oscillation about a vertical axis
- D06F37/14—Ribs or rubbing means forming part of the receptacle
- D06F37/145—Ribs or rubbing means forming part of the receptacle ribs or lifters having means for circulating the washing liquid
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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
- D06F37/26—Casings; Tubs
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
Abstract
The invention provides a double-drum washing machine, which comprises a shell, a first washing drum and a second washing drum, wherein the shell is provided with an inner cavity and a first clapboard, the inner cavity is divided into a first cavity and a second cavity by the first clapboard, a top opening is arranged above the first cavity, and the second cavity is arranged below the first cavity; the outer drum is positioned in the first cavity and can rotate relative to the shell, the outer drum is provided with a washing cavity and a water through hole, the water through hole is used for communicating the washing cavity with the first cavity, and an opening is formed above the washing cavity; the inner drum is positioned in the washing cavity and can rotate relative to the outer drum, and the cross section of the inner drum is oval; drive assembly installs in the casing and is located the second cavity, and drive assembly is connected with outer cylinder and interior cylinder and is used for driving outer cylinder and interior cylinder rotation. The drive assembly drives the inner drum to rotate, clothes placed between the inner drum and the outer drum can be stirred, the outer peripheral surface of the inner drum and the inner peripheral surface of the outer drum can rub against the clothes, and the washing effect is good.
Description
Technical Field
The invention relates to the technical field of washing machines, in particular to a double-drum washing machine.
Background
The existing washing machines include a drum type washing machine and a straight drum type washing machine, both of which perform washing by tumbling and circumferential rubbing of laundry. The existing drum washing machine and the straight drum washing machine use the inner circumferential surface of the drum to rub the clothes to realize the washing function, the contact area between the drum and the clothes is small, and the washing effect is poor.
Therefore, there is also a need to provide a new dual drum washing machine to solve the above problems.
Disclosure of Invention
In view of the above-mentioned drawbacks of the prior art, the present invention provides a dual drum washing machine with better washing effect.
The technical scheme adopted by the invention for solving the technical problem is as follows:
a double-drum washing machine comprises a shell, a first washing drum and a second washing drum, wherein the shell is provided with an inner cavity and a first partition plate, the inner cavity is divided into a first cavity and a second cavity by the first partition plate, a top opening is arranged above the first cavity, and the second cavity is positioned below the first cavity; the outer drum is positioned in the first cavity and can rotate relative to the shell, the outer drum is provided with a washing cavity and a water through hole, the water through hole is used for communicating the washing cavity with the first cavity, and an opening is formed above the washing cavity; the inner drum is positioned in the washing cavity and can rotate relative to the outer drum, and the cross section of the inner drum is oval; and the driving assembly is arranged in the shell and positioned in the second cavity, and the driving assembly is connected with the outer roller and the inner roller and is used for driving the outer roller and the inner roller to rotate.
Preferably, the driving assembly includes a driver and a washing machine clutch, the washing machine clutch includes a washing shaft and a dehydrating shaft which are concentrically sleeved, the driver is used for driving the washing shaft and the dehydrating shaft to rotate, the washing shaft is connected with the inner drum, and the dehydrating shaft is connected with the outer drum.
Preferably, the driving assembly further includes a planetary gear transmission part including a sun gear, a planetary gear and an internal gear, the sun gear is fixedly connected with the washing shaft, the planetary gear is fixedly connected with the inner drum, the internal gear is fixedly connected with the outer drum, and the planetary gear is respectively engaged with the sun gear and the internal gear.
Preferably, the housing is further provided with a second partition plate, the second cavity is located above the second partition plate, a third cavity is located below the second partition plate, the driving assembly further comprises a belt transmission component, the driver and the washing machine clutch are both mounted on the second partition plate and are both located in the second cavity, the belt transmission component is located in the third cavity, and a rotating shaft of the driver penetrates through the second partition plate and is connected with the washing machine clutch through the belt transmission component.
Preferably, the dual drum washing machine further comprises a bottom cover, the bottom of the casing is provided with a bottom opening, the bottom opening is communicated with the third cavity, and the bottom cover is detachably mounted at the bottom of the casing and used for covering the bottom opening.
Preferably, the double drum washing machine further comprises a top plate installed at the top of the housing and used for covering the top opening, the top plate is provided with a laundry taking hole, and the flip cover is hinged to the top plate and used for covering the laundry taking hole.
Preferably, the outer circumferential surface of the inner drum and the inner circumferential surface of the outer drum are each provided with a plurality of spherical protrusions for rubbing the laundry.
Preferably, the bottom of the outer drum is provided with an annular protruding part, the inner gear is fixedly mounted on the inner circumferential surface of the annular protruding part, one end of the inner drum, which is close to the driving assembly, is provided with a groove for accommodating the annular protruding part and a connecting shaft protruding from the groove bottom of the groove, and the connecting shaft is fixedly connected with the planetary gear.
Preferably, the first partition plate is provided with an annular positioning rib protruding upwards, the inner diameter of the annular positioning rib is larger than the outer diameter of the outer roller, and the annular positioning rib is used for restraining the position of the outer roller.
Preferably, the outer drum comprises an inner layer and an outer layer which are connected with each other, a gap is formed between the inner layer and the outer layer, the water passing hole is formed in the inner layer, a through groove is formed in the lower portion of the outer layer, and the washing cavity is communicated with the first cavity through the water passing hole and the through groove.
Compared with the prior art, the invention mainly has the following beneficial effects:
the driving assembly drives the inner drum to rotate, clothes placed between the inner drum and the outer drum can be stirred, the clothes can be rubbed by the outer circumferential surface of the inner drum and the inner circumferential surface of the outer drum, the washing effect is good, and the driving assembly drives the outer drum to rotate, so that the dewatering function can be realized.
Drawings
In order to illustrate the solution of the present application more clearly, the drawings needed to be used in the description of the embodiments are briefly described below, it is obvious that the drawings in the following description are some embodiments of the present application, and it is obvious for those skilled in the art to derive other drawings without inventive effort.
Fig. 1 is a schematic structural view of a twin drum washing machine according to the present invention;
fig. 2 is an exploded view of a twin drum washing machine according to the present invention;
fig. 3 is a sectional view of a twin drum washing machine according to the present invention;
fig. 4 is a perspective sectional view of an outer drum according to the present invention.
Reference numerals are as follows:
100-double-drum washing machine, 11-shell, 111-first clapboard, 1111-annular positioning rib, 112-second clapboard, 12-bottom cover, 13-top plate, 131-clothes taking hole, 14-flip cover, 101-first cavity, 102-second cavity, 103-third cavity, 104-water outlet, 20-outer drum, 201-washing cavity, 202-water passing hole, 21-inner layer, 22-outer layer, 221-through groove, 23-annular bulge, 30-inner drum, 31-groove, 32-connecting shaft, 33-spherical bulge, 41-driver, 42-washing machine clutch, 421-washing shaft, 422-dewatering shaft, 43-central gear, 44-planetary gear, 45-internal gear, 46-coupling, 47-drive shaft, 48-planetary lever, 491-first pulley, 492-second pulley, 493-belt.
Detailed Description
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "including" and "having," and any variations thereof in the description and claims of this application and the description of the figures above, are intended to cover non-exclusive inclusions. The terms "first," "second," and the like in the description and claims of this application or in the above-described drawings are used for distinguishing between different objects and not for describing a particular order.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.
Fig. 1 is a schematic structural view of a twin drum washing machine 100 according to the present invention; fig. 2 is an exploded view of the twin drum washing machine 100 according to the present invention; fig. 3 is a sectional view of the twin drum washing machine 100 according to the present invention.
As shown in fig. 1 to 3, a dual drum washing machine 100 according to a preferred embodiment of the present invention includes a housing assembly, an outer drum 20, an inner drum 30, and a driving assembly.
The housing assembly includes a housing 11, a bottom cover 12, a top plate 13, and a flip 14. The shell 11 is provided with an inner cavity and a first partition plate 111, the inner cavity is divided into a first cavity 101 and a second cavity 102 by the first partition plate 111, a top opening is arranged above the first cavity 101, and the second cavity 102 is positioned below the first cavity 101. The housing 11 is further provided with a second partition plate 112, the second cavity 102 is located above the second partition plate 112, and the third cavity 103 is located below the second partition plate 112, that is, the first partition plate 111 and the second partition plate 112 divide the inner cavity of the housing 11 into the first cavity 101, the second cavity 102, and the third cavity 103 from top to bottom. The first chamber 101 may be used to receive wash water. The housing 11 is further provided with a drain port 104 communicating with the first chamber 101. The bottom of the housing 11 is provided with a bottom opening, the bottom opening is communicated with the third cavity 103, and the bottom cover 12 is detachably mounted at the bottom of the housing 11 and used for covering the bottom opening. When desired, the bottom cover 12 may be removed to inspect or repair the components located within the third cavity 103. The top plate 13 is installed on the top of the housing 11 and serves to cover the top opening, the top plate 13 is provided with a laundry taking hole 131, and the folder 14 is hinged to the top plate 13 and serves to cover the laundry taking hole 131. Preferably, the first partition 111 is provided with an annular positioning rib 1111 protruding upward, an inner diameter of the annular positioning rib 1111 is slightly larger than an outer diameter of the outer drum 20, and the annular positioning rib 1111 serves to restrain a position of the outer drum 20. When the outer drum 20 is installed, the outer drum 20 can be placed in the positioning groove formed by the annular positioning rib 1111 to facilitate the mutual positioning and installation connection of the outer drum 20 and other parts. When the dual drum washing machine 100 is in operation, the ring-shaped positioning rib 1111 may reduce radial shaking of the outer drum 20 during rotation of the outer drum 20.
The outer drum 20 is located in the first cavity 101 and can rotate relative to the housing 11, the outer drum 20 has a washing cavity 201 and a water through hole 202, the water through hole 202 is used for communicating the washing cavity 201 and the first cavity 101, and an opening is arranged above the washing cavity 201. The outer drum 20 may be received by the first partition 111. In some examples, a water-stop sealing ring may be provided between the bottom of the outer drum 20 and the first partition 111. The washing water can flow between the first chamber 101 and the washing chamber 201 through the water passing hole 202.
Fig. 4 is a perspective sectional view of the outer drum 20 according to the present invention.
As shown in fig. 4, the outer drum 20 includes an inner layer 21 and an outer layer 22 connected to each other, a gap is formed between the inner layer 21 and the outer layer 22, a water through hole 202 is formed in the inner layer 21, a through groove 221 is formed in a lower portion of the outer layer 22, and the washing chamber 201 is communicated with the first chamber 101 through the water through hole 202 and the through groove 221. Accordingly, the weight of the outer drum 20 can be reduced to reduce power consumption of the twin drum washing machine 100 while ensuring a certain structural strength. The bottom of the outer drum 20 is provided with an annular protrusion 23.
The inner drum 30 is positioned in the washing chamber 201 and is rotatable with respect to the outer drum 20, and the cross-sectional shape of the inner drum 30 is oval. One end of the inner drum 30 close to the driving assembly is provided with a groove 31 for receiving the annular protrusion 23 and a connecting shaft 32 protruding from a groove bottom of the groove 31. The connecting shaft 32 is used to transmit torque.
Preferably, the outer circumferential surface of the inner drum 30 and the inner circumferential surface of the outer drum 20 are each provided with a plurality of spherical protrusions 33 for rubbing the laundry. The spherical protrusions 33 can rub the laundry and agitate the water stream, so that the scrubbing effect of the laundry can be improved.
A driving assembly is mounted in the housing 11 and located in the second chamber 102, and the driving assembly is connected to the outer drum 20 and the inner drum 30 and is used for driving the outer drum 20 and the inner drum 30 to rotate. In some examples, the driving assembly may include two drivers for driving the outer drum 20 and the inner drum 30 to rotate, respectively.
In this embodiment, the driving assembly drives the inner drum 30 to rotate, the clothes placed between the inner drum 30 and the outer drum 20 can be stirred, the outer circumferential surface of the inner drum 30 and the inner circumferential surface of the outer drum 20 can both rub against the clothes, the washing effect is good, and the driving assembly drives the outer drum 20 to rotate, so that the dewatering function can be realized.
Preferably, the driving assembly includes a driver 41 and a washing machine clutch 42, the washing machine clutch 42 includes a washing shaft 421 and a dehydrating shaft 422 which are concentrically sleeved, the driver 41 is used for driving the washing shaft 421 and the dehydrating shaft 422 to rotate, the washing shaft 421 is connected with the inner drum 30, and the dehydrating shaft 422 is connected with the outer drum 20. The dehydrating shaft 422 is sleeved on the outer circumference of the washing shaft 421. The driver 41 may be a motor. The washing machine clutch 42 may be configured to: under the driving of the driver 41, the washing shaft 421 rotates, and the dehydrating shaft 422 does not rotate, thereby realizing the washing function; the washing shaft 421 and the dehydrating shaft 422 are rotated in synchronization, thereby performing a dehydrating function.
The washing machine clutch 42 may be a washing machine clutch that is currently commercially available. The washing machine clutch 42, also called a deceleration clutch, is mainly used to perform two functions of washing and dewatering. The washing machine clutch 42 is mainly composed of a washing shaft 421, a dewatering shaft 422, a torsion spring, a brake belt, a shifting fork, a clutch rod, a ratchet wheel, a pawl, a clutch sleeve, an outer sleeve shaft, a gear shaft and the like. A concentric sleeving structure is adopted between the washing shaft 421 and the dewatering shaft 422, and a brake disc is arranged at the middle section. And its lower end is equipped with clutch cover and belt wheel. The outside of the clutch sleeve is sleeved with a holding spring. Outside the holding spring, there is also ratchet wheel, i.e. gear. The operating principle of the washing machine clutch 42 is as follows: when the dual-drum washing machine 100 enters a washing state, the pawl will rotate the ratchet wheel by a certain angle, so that the clasping spring is separated from the clutch sleeve, i.e. the sleeve-shaped dewatering shaft 422 is separated from the torque transmission component, the driver 41 drives the washing shaft 421 to rotate, and the dewatering shaft 422 does not rotate, thereby realizing a washing function. When the double-drum washing machine 100 enters the dehydration state, the ratchet is clamped by the pawl, so that the clutch sleeve and the dehydration shaft 422 are tightly held, and the washing shaft 421 and the dehydration shaft 422 synchronously rotate at high speed, thereby realizing the dehydration function. The brake steel belt is used for controlling the brake after dehydration.
Preferably, the driving assembly further includes a planetary gear transmission part including a sun gear 43, a planet gear 44 and an internal gear 45, the sun gear 43 being fixedly connected with the washing shaft 421, the planet gear 44 being fixedly connected with the inner drum 30, the internal gear 45 being fixedly connected with the outer drum 20, the planet gear 44 being engaged with the sun gear 43 and the internal gear 45, respectively. The sun gear 43, the planetary gears 44, and the internal gear 45 constitute a planetary gear transmission mechanism. In the washing state, the dewatering shaft 422, the outer drum 20 and the internal gear 45 are not moved, the washing shaft 421 drives the central gear 43 to rotate, the planetary gear 44 drives the inner drum 30 to rotate and revolve around the central gear 43 under the driving of gear engagement, the elliptical inner drum 30 stirs the clothes to move between the outer circumferential surface of the inner drum 30 and the inner circumferential surface of the outer drum 20, and therefore the washing function is achieved, and the washing effect is good. In the dehydrating state, the dehydrating shaft 422, the outer drum 20, the inner gear 45, the washing shaft 421, the sun gear 43, and the inner drum 30 are synchronously rotated at a high speed, thereby performing a dehydrating function.
Specifically, the drive assembly further includes a coupling 46, a drive shaft 47, and a planetary lever 48. The washing shaft 421 and the transmission shaft 47 are respectively connected to both ends of the coupling 46, the sun gear 43 is keyed to the transmission shaft 47, one end of the planetary lever 48 is rotatably connected to the transmission shaft 47, the other end of the planetary lever 48 is rotatably connected to the connection shaft 32, and the planetary gear 44 is keyed to the connection shaft 32.
Preferably, the driving assembly further includes a belt transmission member, the driver 41 and the clutch 42 of the washing machine are both mounted on the second partition 112 and both located in the second cavity 102, the belt transmission member is located in the third cavity 103, and the rotating shaft of the driver 41 passes through the second partition 112 and is connected with the clutch 42 of the washing machine through the belt transmission member. The belt transmission member includes a first pulley 491, a second pulley 492, and a belt 493. The driver 41 is connected to the first pulley 491 and drives the first pulley 491 to rotate, the second pulley 492 is connected to an input shaft of the washing machine clutch 42, and the belt 493 is connected to the first pulley 491 and the second pulley 492. The outer diameter of first pulley 491 is smaller than that of second pulley 492, and the belt transmission member is a reduction transmission mechanism, so that the torque for driving washing machine clutch 42 can be increased.
Preferably, the bottom of the outer drum 20 is provided with an annular protrusion 23, the internal gear 45 is fixedly mounted on the inner circumferential surface of the annular protrusion 23, one end of the inner drum 30 close to the driving assembly is provided with a groove 31 for receiving the annular protrusion 23 and a connecting shaft 32 protruding from the bottom of the groove 31, and the connecting shaft 32 is fixedly connected with the planetary gear 44. Thus, the planetary gear 44 can rotate and revolve the inner drum 30 around the sun gear 43 via the connecting shaft 32.
It is to be understood that the above-described embodiments are merely illustrative of some, but not restrictive, of the broad invention, and that the appended drawings illustrate preferred embodiments of the invention and do not limit the scope of the invention. This application is capable of embodiments in many different forms and is provided for the purpose of enabling a thorough understanding of the disclosure of the application. Although the present application has been described in detail with reference to the foregoing embodiments, it will be apparent to one skilled in the art that the present application may be practiced without modification or with equivalents of some of the features described in the foregoing embodiments. All equivalent structures made by using the contents of the specification and the drawings of the present application are directly or indirectly applied to other related technical fields and are within the protection scope of the present application.
Claims (7)
1. A double drum washing machine, characterized by comprising:
the device comprises a shell, a first baffle plate and a second baffle plate, wherein the shell is provided with an inner cavity and the first baffle plate, the inner cavity is divided into a first cavity and a second cavity by the first baffle plate, a top opening is arranged above the first cavity, and the second cavity is positioned below the first cavity;
the outer drum is positioned in the first cavity and can rotate relative to the shell, the outer drum is provided with a washing cavity and a water through hole, the water through hole is used for communicating the washing cavity with the first cavity, and an opening is formed above the washing cavity;
the inner drum is positioned in the washing cavity and can rotate relative to the outer drum, and the cross section of the inner drum is oval;
the driving assembly is arranged in the shell and positioned in the second cavity, and is connected with the outer roller and the inner roller and used for driving the outer roller and the inner roller to rotate;
the driving assembly comprises a driver, a washing machine clutch and a planetary gear transmission component, the washing machine clutch comprises a washing shaft and a dewatering shaft which are concentrically sleeved, the driver is used for driving the washing shaft and the dewatering shaft to rotate, the washing shaft is connected with the inner roller, the dewatering shaft is connected with the outer roller, the planetary gear transmission component comprises a central gear, a planetary gear and an inner gear, the central gear is fixedly connected with the washing shaft, the planetary gear is fixedly connected with the inner roller, the inner gear is fixedly connected with the outer roller, and the planetary gear is respectively meshed with the central gear and the inner gear; the bottom of the outer roller is provided with an annular bulge, the inner gear is fixedly arranged on the inner circumferential surface of the annular bulge, one end of the inner roller, which is close to the driving assembly, is provided with a groove for accommodating the annular bulge and a connecting shaft protruding from the groove bottom of the groove, and the connecting shaft is fixedly connected with the planetary gear.
2. A twin drum washing machine according to claim 1,
the casing still is equipped with the second baffle, the second cavity is located the top of second baffle, the below of second baffle is the third cavity, drive assembly still includes the belt drive part, the driver with washing machine clutch all install in the second baffle just all is located in the second cavity, the belt drive part is located in the third cavity, the pivot of driver passes the second baffle and passes through the belt drive part with washing machine clutch is connected.
3. A twin drum washing machine according to claim 2,
the bottom cover is detachably mounted at the bottom of the shell and used for sealing the bottom opening.
4. A twin drum washing machine according to claim 1,
the top plate is installed at the top of the shell and used for sealing the top opening, the top plate is provided with a clothes taking hole, and the turnover cover is hinged to the top plate and used for sealing the clothes taking hole.
5. A twin drum washing machine according to claim 1,
the outer circumferential surface of the inner drum and the inner circumferential surface of the outer drum are both provided with a plurality of spherical protrusions for rubbing clothes.
6. A twin drum washing machine according to claim 1,
the first partition plate is provided with an annular positioning rib protruding upwards, the inner diameter of the annular positioning rib is larger than the outer diameter of the outer roller, and the annular positioning rib is used for restraining the position of the outer roller.
7. A twin drum washing machine according to claim 1,
the outer drum comprises an inner layer and an outer layer which are connected with each other, a gap exists between the inner layer and the outer layer, the water passing hole is formed in the inner layer, a through groove is formed in the lower portion of the outer layer, and the washing cavity is communicated with the first cavity through the water passing hole and the through groove.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010096026.6A CN111254627B (en) | 2020-02-17 | 2020-02-17 | Double-drum washing machine |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010096026.6A CN111254627B (en) | 2020-02-17 | 2020-02-17 | Double-drum washing machine |
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| CN111254627A CN111254627A (en) | 2020-06-09 |
| CN111254627B true CN111254627B (en) | 2022-05-27 |
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| US20220356632A1 (en) * | 2021-05-06 | 2022-11-10 | Whirlpool Corporation | Pet hair removal assembly for laundry appliances |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2260096Y (en) * | 1996-01-26 | 1997-08-20 | 赫乃军 | Column rubbing type washing machine |
| CN2379500Y (en) * | 1999-04-13 | 2000-05-24 | 张宽 | Rubbing type washing machine |
| CN101457455A (en) * | 2008-09-09 | 2009-06-17 | 王勇 | Rubbing type rotary drum washing machine |
| CN102409505A (en) * | 2011-11-11 | 2012-04-11 | 段静明 | Rubbing type washing machine |
| CN202576942U (en) * | 2012-02-14 | 2012-12-05 | 林美利 | Single-drum rotary washing and dehydration machine |
| CN203270307U (en) * | 2013-05-02 | 2013-11-06 | 内蒙古科技大学 | Mini hand-scrubbed sock washing machine |
| CN204000316U (en) * | 2014-08-26 | 2014-12-10 | 孙宇航 | Underpants thing cam washing machine |
| CN104452167A (en) * | 2014-12-17 | 2015-03-25 | 贵州黔唐电器有限责任公司 | Washing machine |
| CN108560187B (en) * | 2018-07-09 | 2020-09-01 | 徐州工程学院 | Small-size imitative hand washing machine |
| CN209759819U (en) * | 2019-04-01 | 2019-12-10 | 浙江莎美实业股份有限公司 | Cleaning device for cleaning knitwear |
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2020
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