WO2016127685A1 - 一种洗衣机排水结构 - Google Patents

一种洗衣机排水结构 Download PDF

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Publication number
WO2016127685A1
WO2016127685A1 PCT/CN2015/095292 CN2015095292W WO2016127685A1 WO 2016127685 A1 WO2016127685 A1 WO 2016127685A1 CN 2015095292 W CN2015095292 W CN 2015095292W WO 2016127685 A1 WO2016127685 A1 WO 2016127685A1
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WO
WIPO (PCT)
Prior art keywords
lever
cam
washing machine
sealing cover
bar assembly
Prior art date
Application number
PCT/CN2015/095292
Other languages
English (en)
French (fr)
Inventor
吕佩师
杨林
张刚金
田云
刘建设
Original Assignee
青岛海尔洗衣机有限公司
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 青岛海尔洗衣机有限公司 filed Critical 青岛海尔洗衣机有限公司
Priority to JP2017541621A priority Critical patent/JP6635317B2/ja
Priority to EP15881834.4A priority patent/EP3258000A4/en
Priority to KR1020177025463A priority patent/KR20170117145A/ko
Priority to US15/550,558 priority patent/US10584439B2/en
Publication of WO2016127685A1 publication Critical patent/WO2016127685A1/zh

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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
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/08—Liquid supply or discharge arrangements
    • 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
    • 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
    • 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
    • D06F37/267—Tubs specially adapted for mounting thereto components or devices not provided for in preceding subgroups
    • 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
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/08—Liquid supply or discharge arrangements
    • D06F39/083—Liquid discharge or recirculation arrangements
    • 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
    • D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
    • D06F2105/08—Draining of washing liquids

Definitions

  • the present invention relates to the technical field of washing machines, and in particular to a washing machine drainage structure.
  • washing machines With the improvement of living standards, people have higher and higher requirements for washing machines. Simple laundry has not met the requirements of customers. Especially energy and development have become the theme of social development. While washing machines meet people's basic laundry requirements. Energy conservation has also become an important factor in measuring washing machines. When the ordinary pulsator washing machine is injecting water, there is also a large amount of water between the inner tub and the outer tub, and the water outside the inner tub is wasted when washing. There is a non-porous washing machine in the lower part of the inner tub. The washing machine only has a dewatering drain hole at the upper end of the inner tub. After washing, when washing and rinsing, only the inner bucket has water, and there is no water between the inner tub and the outer tub.
  • the water in the washing machine can be fully utilized.
  • 40% of the water is used less than other washing machines.
  • the detergent can be saved.
  • the washing machine is reduced to some extent.
  • the load is also more energy efficient.
  • such a washing machine without a hole in the bottom wall of the inner tub also has a disadvantage in that water is not discharged in time due to dehydration when the bottom of the inner tub is dewatered, the dehydration starts slowly, the dehydration starts to vibrate greatly, the energy consumption is high, and after dehydration The moisture content of the clothes is high.
  • the present invention provides a washing machine drainage structure, and in particular, adopts the following technical solutions:
  • the utility model relates to a washing machine drainage structure, which is used for washing and rinsing a water-free washing machine between inner and outer barrels.
  • the washing machine comprises an inner barrel without a hole in the lower side of the barrel side wall.
  • the drainage structure of the inner barrel comprises a water sealing cover, a lever structure and a driving device, and the lever
  • the resistance arm end of the structure is connected to the water sealing cover, the power arm end is provided with a driving device for driving the operation of the lever structure, the bottom wall of the inner barrel is provided with a water outlet, and the lever structure drives the water sealing cover under the driving of the driving device.
  • the drain is closed during washing and rinsing, and the drain is opened when draining.
  • the lever structure comprises a lever and a bracket, the bracket is fixed outside the bottom wall of the inner tub, the lever is rotatably mounted on the bracket, and the driving device drives the lever to rotate around the bracket.
  • the sealing cover of the water sealing cover and the lever structure is connected by a hinge, and the sealing cover can be wound around the lever structure.
  • the center line of the resistance arm end is free to rotate, and the sealing cover has a movable angle of 0-15 degrees between the bottom wall of the inner tub.
  • the movable angle is 5°.
  • the driving device comprises a cam
  • the cam is rotatably mounted outside the bottom wall of the inner tub, and the contour curved surface of the cam is in contact with the power arm end of the lever, and the contour curved surface is pressed/released with the cam rotation
  • the lever's power arm effects the lever movement of the lever structure.
  • the cam is further provided with a first limiting portion and a second limiting portion, wherein the first limiting portion is configured to limit the rotation of the cam to the sealing cover opening the drain port position, and the The second limiting portion is used to limit the rotation of the cam (12) to the position where the sealing cover closes the drain port and then stops.
  • a torsion spring is provided between the lever of the lever structure and the bracket for resetting the lever when the contour curved surface is loosened, and the torsion spring is deformed when the power arm of the lever is pressed under the contour curved surface, and the contour surface is loose. The deformation of the power arm when the lever is opened is restored.
  • the washing machine includes an outer tub coaxially mounted outside the inner tub;
  • the driving device further includes a first bar assembly and a second bar assembly mounted on the bottom wall of the outer tub, and the cam is provided with a first lever and a second lever;
  • the first shift bar assembly blocks the first shift lever to rotate the cam in the reverse direction
  • the contour curved surface presses the lever structure
  • the water sealing cover opens the drain port
  • the second shift lever assembly Blocking the second lever causes the cam to rotate in the forward direction
  • the contour curved surface releases the lever structure
  • the water sealing cover closes the drain port
  • first bar assembly and the second bar assembly respectively include a bar that can move up and down;
  • the first bar assembly is disposed outside the second bar assembly, and the length of the first lever is greater than the length of the second lever, such that the bar of the first bar assembly blocks only the first lever when moving upward ;
  • the length of the second lever assembly is smaller than the length of the first lever assembly, and the distance between the second lever and the bottom wall of the outer tub is smaller than the bottom wall of the first lever and the outer tub The distance between them causes the second lever member to block the second lever when the lever is moved upward.
  • first bar assembly and the second bar assembly respectively include a sealing sleeve and a baffle movable up and down.
  • the upper part of the bar passes through the bottom wall of the outer tub between the inner tub and the outer tub, and the lower portion is located Outside the bottom wall of the outer tub, the sealing sleeve is sleeved on the upper part of the blocking rod and can be expanded and contracted according to the movement of the blocking rod, and the other end of the sealing sleeve is sealedly connected with the bottom wall of the outer tub.
  • first bar assembly and the second bar assembly further comprise a compression spring
  • the compression spring is disposed at a lower portion of the bar, the compression spring abuts against the bottom wall of the outer tub, and the other end abuts the lower end of the bar
  • the compression spring is compressed when the stopper is raised, and is used to provide the spring force of the shift lever to lower it back.
  • the driving device further comprises a pressure plate, a bracket, a tie rod and a traction motor, and the bracket is fixed on the outer barrel Outside the bottom wall, the pull rod is rotatably mounted on the bracket, one end of the pull rod is connected to the traction motor, and the other end is fixedly connected with the pressure plate, and the two ends of the pressure plate are respectively pressed on the first shift lever assembly and the second shift lever assembly;
  • the pull rod and the pressure plate rotate around the bracket under the traction of the traction motor, one end of the pressure plate rises, the first shift rod assembly is pressed upward, the other end of the pressure plate is lowered, and the second shift rod assembly is moved downward.
  • the inner tub of the present invention is provided with only one dewatering drainage hole at the upper portion of the side wall, and the dewatering drainage hole is disposed at a position above the maximum water intake of the inner tub of the washing machine, and is used for discharging the desorbed water from the water when dehydrating, and other portions of the inner side wall of the inner tub It is closed design and does not have any through hole structure.
  • the drain wall of the inner tub is closed during washing and rinsing, and the drain opening is opened during draining, and the other portions of the bottom wall of the inner tub are closed.
  • the drainage structure of the invention is suitable for the washing machine without water between the inner and outer barrels during washing and rinsing
  • the bottom wall of the inner barrel is provided with a drain port
  • the water sealing cover of the drainage structure is closed under the action of the lever structure during washing or rinsing.
  • the port closes the drain port.
  • the water sealing cover opens the drain port under the action of the lever structure, and the lever structure realizes the lever movement under the driving action of the driving device. Therefore, the drainage structure of the present invention utilizes the rising and falling of the resistance arm end of the lever structure to drive the water sealing cover to close, open the drainage port, realize the drainage of the washing machine, and has the advantages of simple structure, convenient installation and good market promotion value.
  • Figure 1 is a perspective view of the drainage structure of the present invention installed at the bottom of the inner tub;
  • Figure 2 is another perspective view of the drainage structure of the present invention installed on the bottom of the inner tub;
  • Figure 3 is a perspective view of the cam of the present invention.
  • Figure 4 is a perspective view of the drainage structure of the present invention installed at the bottom of the outer tub;
  • Figure 5 is a plan view of Figure 4 of the present invention.
  • Figure 6 is a cross-sectional view of Figure 4 of the present invention.
  • Figure 7 is a perspective view of the first shift bar assembly and the second shift lever assembly of the present invention.
  • Figure 8 is a cross-sectional view of the first or second lever of the present invention.
  • Figure 9 is a schematic view showing the working principle of the present invention.
  • Figure 10 is a perspective view showing the open state of the drainage structure of the present invention.
  • Figure 11 is a perspective view showing the closed state of the drainage structure of the present invention.
  • Figure 12 is a perspective view of a second embodiment of the present invention.
  • Figure 13 is a front elevational view of a second embodiment of the present invention.
  • a washing machine drainage structure is used for washing and rinsing a water-free washing machine between inner and outer barrels.
  • the drainage structure comprises a water sealing cover 8 , a lever structure and a driving device, and a resistance arm end of the lever structure.
  • the water sealing cover 8 is connected, and the power arm end is provided with a driving device for driving the working of the lever structure, and the bottom wall of the inner tub 1 is provided with a water draining port, and the lever structure drives the water sealing cover 8 under the driving of the driving device to wash and The drain is closed during the rinsing process and the drain is opened when draining.
  • the inner tub 1 of the present invention is provided with a one-time dewatering drain hole only at the upper portion of the side wall, and the dewatering drain hole is disposed at a position above the maximum water intake amount of the inner tub of the washing machine, and is used for discharging the desorbed water from the side of the inner tub 1 during dehydration.
  • the other parts are closed and no through hole structure is provided.
  • the bottom wall of the inner tub 1 is provided with a larger outlet opening, the drain opening is closed during washing and rinsing, the drain opening is opened when draining, and the other part of the inner wall of the inner tub is closed.
  • the drainage structure of the invention is suitable for the washing machine without water between the inner and outer barrels during washing and rinsing
  • the bottom wall of the inner barrel 1 is provided with a drainage port
  • the sealing cover 8 of the drainage structure is under the action of the lever structure during washing or rinsing.
  • the drain port is closed to close the drain port
  • the water seal cover 8 opens the drain port under the action of the lever structure when draining, and the lever structure realizes the lever movement under the driving action of the driving device. Therefore, the drainage structure of the present invention utilizes the rising and falling of the resistance arm end of the lever structure to drive the water sealing cover 8 to close and open the drainage port to realize the drainage of the washing machine, and has the advantages of simple structure, convenient installation and good market promotion value.
  • the lever structure comprises a lever 3 and a lever bracket 6 fixed to the outside of the bottom wall of the inner tub 1, and the middle of the lever 3 is rotatably mounted on the lever bracket 6
  • the water sealing cover 8 is connected to the resistance arm end of the lever 3, and the driving device is disposed at the power arm end of the lever 3, and the driving device drives the lever 3 to rotate about the lever bracket 6.
  • the resistance arm end of the lever 3 of the present invention is connected to the water sealing cover 8, the power arm end is connected to the driving device, and the lever structure of the present invention is disposed outside the bottom wall of the inner tub 1, so that the power arm end is driven by the driving device.
  • Upward movement, resistance arm The end drives the sealing cover 8 to move downward, the drainage opening is opened, the power arm end is driven downward by the driving device, and the resistance arm end drives the sealing cover 8 to move upward, and the drainage opening is closed. Therefore, the drainage structure of the present invention adopts a lever structure, and the opening or closing of the drainage port is affected by the lever and is more reliable.
  • the water sealing cover 8 and the resistance arm end of the lever structure are connected by a hinge, and the water sealing cover 8 can freely rotate around the center line of the resistance arm end of the lever structure, and the water sealing cover 8 and the inner barrel
  • the bottom wall has a movable angle of 0 to 15°, and preferably, the movable angle is 5°. Since the movement track of the lever structure is a straight line, when the water sealing cover 8 is covered on the water outlet, there may be a part that contacts first and the other part does not touch, which may result in a leaky water leakage of the drainage cover, and the drainage cover 8 is adopted.
  • the hinged connection is made on the lever structure, so that the water sealing cover 8 has a certain angle of movement, which makes it easier for the sealing cover 8 to cover the drainage opening.
  • a water retaining rib 7 is disposed around the drain opening of the inner tub 1 , and the function of the water retaining rib is mainly to prevent the water flow from damaging the lever structure when the drain port is drained, thereby causing the lever structure to be unstable, or even Cause damage. Further, the water retaining rib 7 is provided with a slit at the corresponding lever 3, which prevents the water retaining rib 7 from hindering the normal rise and fall of the lever 3, so that the closing and opening of the water sealing cover 8 is smoother. Since the water retaining ribs 7 are only for reducing the flow of water to the lever structure, it is preferable that the water retaining ribs 7 are provided on the side of the drain opening close to the lever structure.
  • the driving device of the present invention comprises a cam 12, the cam 12 is rotatably mounted outside the bottom wall of the inner tub 1, and the contour curved surface 10 of the cam 12 is in contact with the power arm end of the lever 3,
  • the contoured surface 10 effects the lever movement of the lever structure as the cam 12 rotates to lower/release the power arm of the lever 3.
  • the present invention contacts the power arm end of the lever 3 through the different curved surfaces of the contour curved surface 10 during the rotation of the cam 12, and when the surface having the large radius of curvature contacts the power arm end of the lever 3, the cam 12 presses the lever 3
  • the power arm, the power arm end of the lever 3 is pressed upward, and the resistance arm end of the lever 3 moves downward to drive the water sealing cover 8 to open the drain port; when the surface with a small radius of curvature is in contact with the power arm end of the lever 3, the cam 12
  • the power arm of the lever 3 is released, the power arm end of the lever 3 is returned downward, and the resistance arm end of the lever 3 moves upward to drive the water sealing cover 8 to close the drain port.
  • the contour curved surface 10 of the present invention includes at least a first curved surface, a second curved surface, and a third curved surface.
  • the radius of curvature of the first curved surface gradually increases, and the radius of curvature of the second curved surface is equal to the maximum value of the radius of curvature of the first curved surface.
  • the radius of curvature of the three curved surfaces is slightly smaller than the radius of curvature of the second curved surface.
  • the first curved surface of the contour curved surface 10 is in contact with the power arm end of the lever 3, and the first curved surface and the second curved surface are respectively associated with the lever during the rotation of the cam surface 12
  • the power arm end contact of 3 after reaching the second curved surface with the largest radius of curvature, continues to rotate to the third curved surface and then stops, the third curved surface depresses the power arm end of the lever 3, and the water sealing cover 8 is opened, so that the cam 12 is mainly Stop turning
  • the radius of curvature of the third curved surface is slightly smaller than the radius of curvature of the second curved surface to prevent the cam 3 from rotating, and the sealing state of the water sealing cover 8 is more reliable.
  • the end of the power arm end of the lever 3 of the present invention is provided with a frame-like structure 5, and the inside of the frame-like structure 5 is rotatably mounted with a pulley 4 which is in contact with the contour curved surface 10 of the cam 12, so that the cam 12 and the lever 3 can be reduced.
  • the contact friction of the power arm end makes the transition more stable and does not generate noise.
  • the water sealing cover 8 of the invention opens the water outlet, mainly by pressing the power arm end of the lever 3 under the cam 12, and the water sealing cover 8 closes the water outlet, the cam 12 releases the power arm end of the lever 3, and the power arm end of the lever 3 This is achieved by lowering the back position, so ensuring that the power arm end of the lever 3 is returned when the cam 12 is released is the key to ensuring that the water sealing cover 8 closes the drain.
  • a torsion spring 2 is provided between the lever 3 of the lever structure and the bracket 6 for resetting the lever 3 when the contour curved surface 10 is released, the torsion spring 2 being contoured
  • the curved surface 10 deforms when the power arm of the lever 3 is pressed down, and the deformation is restored when the contour curved surface 10 releases the power arm of the lever 3.
  • the torsion spring 10 of the present invention is deformed when the cam 12 presses the lever 3, and has a certain elastic force.
  • the cam 12 releases the lever 3 the torsion spring 10 is applied to the lever 3 to restore the deformation.
  • the end is falling.
  • the invention can realize the resetting of the lever 3 by the torsion spring 10, has a simple structure, is convenient to install, and is reliable and effective.
  • the washing machine of the present invention includes an inner tub 1 coaxially mounted inside the outer tub 13.
  • the driving device of the present invention further includes a first bar assembly 16 and a second bar assembly 17 mounted on the bottom wall of the outer tub 13, and the cam 12 is provided with a first lever 9 and a second lever 11 ;
  • the first shift bar assembly 16 blocks the first shift lever 9 to rotate the cam 12 in the reverse direction
  • the contour curved surface 10 presses the lever structure
  • the water sealing cover 8 opens the drain port
  • the inner bucket 1 rotates in the opposite direction.
  • the second lever assembly 17 blocks the second lever 11 to rotate the cam 12 in the forward direction
  • the contour curved surface 10 releases the lever structure
  • the water sealing cover 8 closes the drain port.
  • the forward rotation or the reverse rotation of the present invention does not limit the rotation of the inner tub 1 in a certain fixed direction, but only defines that the inner tub 1 needs to perform two-way rotation when draining, for example, when the clockwise rotation is the positive direction, Then, the counterclockwise rotation is reversed, and vice versa.
  • the inner tub 1 is rotated clockwise to the positive direction, and the inner tub 1 is rotated counterclockwise to the opposite direction.
  • the inner tub 1 of the present invention performs bidirectional rotation to open the water sealing cover 8 before draining, and closes the water sealing cover 8 after the drainage is completed.
  • the first bar assembly 16 and the second bar assembly 17 respectively include a bar 23 that can move up and down.
  • the first bar assembly 16 and the second bar assembly 17 of the bar 23 need to be separately
  • the first lever 9 and the second lever 11 act independently, and if the action object is wrong, the rotation and reset of the cam 12 cannot be achieved.
  • the first bar assembly 16 is disposed outside the second bar assembly 17, and the length of the first lever 9 is greater than the length of the second lever 11 such that the bar 23 of the first bar assembly 16 is upward. Only the first lever 9 is blocked during exercise.
  • the first bar assembly 16 is disposed outside the free end of the second lever 11, and when the first bar assembly 16 is moved upward, it is impossible to block the second lever 11, and only the first lever 9 can be blocked.
  • a lever 9 drives the cam 12 to rotate in the opposite direction, and the power arm end of the lever 3 is pushed down, the power arm end is raised, the resistance arm end is lowered, and the water sealing cover 8 opens the drain port.
  • the length of the blocking lever 23 of the second shifting lever assembly 17 of the present invention is smaller than the length of the blocking lever 23 of the first shifting lever assembly 16, and the distance between the second shifting lever 11 and the bottom wall of the outer tub 13 is smaller than the first The distance between the lever 9 and the bottom wall of the outer tub 13 is such that the second lever 11 is blocked only when the lever 23 of the second lever assembly 17 is moved upward.
  • the height of the upward movement of the lever 23 of the second lever assembly 17 can only block the second lever 11 and block the first lever 9, and the second lever 11 drives the cam 12 to rotate in the forward direction.
  • the lengths of the first lever 9 and the second lever 11 of the present invention are such that the first lever 9 drives the cam 12 to rotate to the third curved surface of the contour curved surface 10 and the lever 3 under the blocking of the first shift lever assembly 16.
  • the second lever 11 drives the cam 12 to rotate after the second lever assembly 17 is blocked until the first curved surface of the contour curved surface 10 contacts the power arm end of the lever 3 and is separated therefrom.
  • the first shifting bar assembly 16 and the second shifting lever assembly 17 of the present invention each include a retaining lever 23 , a nut 24 , a sealing sleeve 25 , a fixed disc 26 and a compression spring 27 .
  • the baffle 23 passes through the bottom wall of the outer tub 13, and the first bar assembly 16 of the present invention and the bar 23 of the second bar assembly 17 are movable up and down to block the first lever 9 and the second lever 11 .
  • the upper portion of the blocking rod 23 is located between the inner tub 1 and the outer tub 13, and the lower portion is located outside the bottom wall of the outer tub 13.
  • the sealing sleeve 25 is sleeved on the upper portion of the blocking rod 23 and can be expanded and contracted according to the movement of the blocking rod 23, and sealed.
  • One end of the sleeve 25 is fixed to the stopper 23 by a nut 24, and the other end is fixed to the bottom wall of the outer tub 13 by a fixing disc 26 and sealed thereto to secure the first shift lever assembly 16 and the second shift lever assembly 17 and the outer tub 13 Seal between to prevent water leakage.
  • the compression spring 27 is disposed at a lower portion of the stopper rod 23, and the lower end portion of the stopper rod 23 is provided with a blocking nut 29 for blocking one end of the compression spring 27, and the compression spring 27 is disposed at the bottom of the outer tub 13. Between the wall and the blocking nut 29.
  • the outer tub 13 is mounted with a fixing seat 28, the blocking rod 23 passes through the fixing base 28, and the compression spring 27 is disposed between the fixing seat 28 and the blocking nut 29, thereby preventing the compression spring 27 from being subjected to When the pressure is applied to the outer tub 13, the outer tub 13 is frequently pressed to cause damage.
  • the cam 12 is installed between the inner tub 1 and the outer tub 13, in order to provide sufficient installation space, the bottom wall of the outer tub 13 is provided with a groove structure 15, the first block Rod assembly 16 and second lever The assembly 17 is mounted on the groove structure 15, and the groove structure 15 is provided with an outer tub drain 14.
  • the driving device further comprises a pressing plate 20, a bracket 21, a pull rod 22 and a traction motor 19 fixed on the outer side of the bottom wall of the outer tub 13.
  • the pull rod 22 is rotatably mounted on the bracket 21, and one end of the pull rod 22 is connected to the traction motor 19, and the other end is connected Fixedly connected to the pressure plate 20, the two ends of the pressure plate 20 are respectively pressed on the first bar assembly 16 and the second bar assembly 17;
  • the pull rod 22 and the pressure plate 20 rotate around the bracket 21 under the traction of the traction motor 19.
  • the one end of the pressure plate 20 rises, the first shift rod assembly 16 is pressed upward, and the other end of the pressure plate 20 is lowered.
  • the second shift rod assembly 17 moves down.
  • the traction motor 19 is connected to the tie rod 22 by a pull cord 18.
  • the present embodiment differs from the above embodiment only in that a cam structure 12 suitable for the drainage structure of the washing machine of the present invention is provided.
  • the cam structure 12 has a fan-shaped structure as a whole, and the cam structure 12
  • the contour curved surface 10 is provided, and since the cam 12 of the present invention is mounted on the bottom wall of the inner tub 1 of the washing machine, the position of the cam 12 is mounted, so that the contour curved surface is provided on the upper surface of the cam 12.
  • the first shift lever 9 and the second shift lever 12 are disposed on the cam 12 of the embodiment.
  • the first shift lever 9 and the second shift lever 12 have a certain arc setting, and the center of the arc is located at the first shift lever assembly 16 and the first The second bar assembly 17 side.
  • the first bar assembly 16 and the second bar assembly 17 block the first lever 9 and the second lever 12, the first bar assembly 16 and the second bar assembly 17 can be along the first lever.
  • the circular arc structure of the second lever 12 slides out, so that the effect between the two is more balanced, the transition is more stable, and the rotation of the cam 12 is prevented from abruptly changing.
  • the embodiment is different from the above embodiment only in that a cam structure 12 suitable for the drainage structure of the washing machine of the present invention is provided.
  • the cam structure 12 has a cylindrical shape as a whole and a cam structure.
  • the contour curved surface 10 is provided on the 12, and since the cam 12 of the present invention is mounted on the bottom wall of the inner tub 1 of the washing machine, the contour curved surface 10 is provided on the upper surface of the cam 12 in terms of the position after the cam 12 is mounted.
  • the first lever 9 and the second lever 12 are disposed on the cam 12 of this embodiment.
  • the first limiting portion 34 and the second limiting portion 35 are further disposed on the cam 12 of the embodiment, and the first limiting portion 34 is configured to limit the rotation of the cam 12 to the position of opening the drain opening of the sealing cover 8
  • the second limiting portion 35 is configured to stop the rotation of the cam 12 until the water sealing cover 8 closes the drain port position.
  • the contour curved surface 10 of the embodiment Only the upper surface between the cams 12 between the first limiting portion 34 and the second limiting portion 35 is provided.
  • the contour curved surface 10 of the present embodiment includes at least a base curved surface 36, a sliding curved surface 37, and a non-return curved surface 38, and the base curved surface 36
  • the vertical stroke height is the lowest, the vertical stroke height of the sliding curved surface 37 is gradually increased, and the vertical stroke of the non-return curved surface 38 is gradually decreased along the maximum value of the vertical stroke of the sliding curved surface 37, but the reduction is not Big.
  • the water sealing cover 8 is placed on the drainage opening, and at this time, the drainage structure of the present invention is in a closed state;
  • the cam 12 rotates, the lever structure slides along the sliding curved surface 37 until the maximum position of the stroke is reached, and the water sealing cover 8 opens the drain opening.
  • the drainage structure of the present invention is in an open state, and the vertical stroke of the non-return curved surface 38 is slightly smaller.
  • the maximum stroke of the sliding surface 37 maintains the lever structure in a pressurized state, thereby allowing the drainage structure of the present invention to remain open; and to close the drainage structure of the present invention again, it is only necessary to reverse the rotation of the cam 12.
  • first limiting portion 34 and the second limiting portion 35 of the present invention are used for restricting the rotation of the cam 12.
  • the cam 12 When the cam is rotated to the position of the base curved surface 36 or the non-return curved surface 38, the cam 12 is required to stop rotating.
  • the cam 12 may continue to rotate under the action of inertia, which may cause the water sealing cover 8 to be unable to open or cover normally, or may cause damage to the cam 12.
  • the first limiting portion 34 and the second limiting portion 35 of the embodiment are both rod-shaped structures, and the first limiting portion 34 and the second limiting portion 35 are smaller than the first lever 9 and the second lever 12, Therefore, the first lever 9 and the second lever 12 are not affected to come into contact with the lever assembly.
  • first limiting portion 34 and the second limiting portion 35 of the present embodiment are longer than the distance between the outermost ring of the cam 12 and the bracket 6, such that when the cam 12 is turned to the designated position, the first limit The portion 34 and the second limiting portion 35 are blocked by the bracket 6 to stop it.
  • FIG. 9 the solid arrow V and the dashed arrow VI in the figure are the rotation directions of the inner tub 1, and the solid arrow V is the direction in which the inner tub 1 is required for the drainage structure to be closed, and the dotted arrow VI is required to open the drainage structure.
  • the dotted line I in the figure is the trajectory of the movement of the first bar assembly 16 with respect to the inner tub 1
  • the dotted line II is the trajectory of the movement of the second bar assembly 17 with respect to the inner tub 1.
  • the circular dotted line III is the trajectory of the movement of the first lever 9 with respect to the inner tub 1
  • the dotted line IV is the trajectory of the movement of the second lever 11 with respect to the inner tub 1.
  • the drainage structure of the present invention includes the following processes:
  • the traction motor 19 pulls the pull rod 22 to rotate, the pull rod 22 drives the pressure plate 20 to rotate around the bracket 21, and the pressure plate 20 presses one end of the first shift rod assembly 16 to rise, and the first shift rod assembly 16 moves upward under the pressure of the pressure plate 20.
  • the drainage structure closure of the present invention includes the following process:

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Abstract

一种洗衣机排水结构，用于洗涤、漂洗时内外桶之间无水的洗衣机，洗衣机包括桶侧壁下部无孔的内桶（1），内桶（1）所述的排水结构包括封水盖（8）、杠杆结构和驱动装置，杠杆结构的阻力臂端连接封水盖（8），动力臂端设置用于驱动杠杆结构工作的驱动装置，所述内桶（1）的底壁设置排水口，所述的杠杆结构在驱动装置的驱动下带动封水盖（8）在洗涤和漂洗过程中关闭排水口，在排水时打开排水口。上述排水结构利用杠杆结构的阻力臂端的上升、下降带动封水盖（8）关闭、打开排水口，实现排水，而且结构简单，安装方便，具有良好的市场推广价值。

Description

一种洗衣机排水结构 技术领域
本发明涉及洗衣机技术领域，具体地，涉及一种洗衣机排水结构。
背景技术
随着生活水平的提高，人们对洗衣机的要求越来越高，简单的洗衣已经达不到顾客的要求，尤其是能源与发展已经成为社会发展的主题，洗衣机在满足人们基本的洗衣要求的同时，节能也成为了衡量洗衣机的一个重要因素。普通的波轮洗衣机在注水的时候，内桶与外桶之间也有大量的水，洗涤的时候内桶外的水就浪费了。现有一种内桶下部无孔的洗衣机，这种洗衣机只有在内桶的上端部设置脱水排水孔，在注水以后，洗涤、漂洗的时候，只有内桶中有水，而内桶和外桶之间不存水，这样可以充分的利用洗衣机内的水，注水的时候比其它洗衣机少使用40％的水量，同时，也可以节省洗涤剂，另外，由于内桶内的注水量减少，在一定程度上减小了洗衣机的负载，也更加的省电。
然而，这种内桶底壁无孔的洗衣机也具有一个缺点就是，由于内桶下部不设置脱水排水孔，脱水时水不能及时排出，脱水启动慢，脱水启动振动大，能耗较高，脱水后的衣物含水率较高。
因此，如何更好的解决这种洗衣机的排水问题，对于提升用户的使用体验至关重要。
发明内容
为了解决上述问题，本发明提供了一种洗衣机排水结构，具体地，采用了如下的技术方案：
一种洗衣机排水结构，用于洗涤、漂洗时内外桶之间无水的洗衣机，洗衣机包括桶侧壁下部无孔的内桶，内桶所述的排水结构包括封水盖、杠杆结构和驱动装置，杠杆结构的阻力臂端连接封水盖，动力臂端设置用于驱动杠杆结构工作的驱动装置，所述内桶的底壁设置排水口，所述的杠杆结构在驱动装置的驱动下带动封水盖在洗涤和漂洗过程中关闭排水口，在排水时打开排水口。
进一步地，所述的杠杆结构包括杠杆和支架，支架固定在内桶的底壁外侧，杠杆的可转动的安装在支架上，所述的驱动装置驱动杠杆绕着支架转动。
进一步地，所述封水盖与杠杆结构的阻力臂端通过铰链连接，封水盖可绕杠杆结构的 阻力臂端的中心线自由转动，封水盖与内桶底壁之间具有0～15°活动夹角，优选地，所述的活动夹角为5°。
进一步地，所述的驱动装置包括凸轮，凸轮可转动的安装在内桶的底壁外侧，凸轮的轮廓曲面与杠杆的动力臂端相接触，所述的轮廓曲面随着凸轮转动下压/松开杠杆的动力臂实现杠杆结构的杠杆运动。
进一步地，所述的凸轮上还设置第一限位部和第二限位部，所述的第一限位部用于限定凸轮转动到封水盖打开排水口位置后停止，所述的第二限位部用于限定凸轮(12)转动到封水盖关闭排水口位置后停止。
进一步地，所述杠杆结构的杠杆和支架之间设置用于杠杆在轮廓曲面松开时复位的扭簧，所述的扭簧在轮廓曲面下压杠杆的动力臂时发生形变，在轮廓曲面松开杠杆的动力臂时恢复形变。
进一步地，所述的洗衣机包括同轴安装在内桶外部的外桶；
所述的驱动装置还包括安装在外桶的底壁上的第一挡杆组件和第二挡杆组件，所述的凸轮上设置第一拨杆和第二拨杆；
所述的内桶正向转动时，第一挡杆组件阻挡第一拨杆使凸轮反向转动，轮廓曲面下压杠杆结构，封水盖打开排水口，内桶反向转动时，第二挡杆组件阻挡第二拨杆使凸轮正向转动，轮廓曲面松开杠杆结构，封水盖关闭排水口。
进一步地，所述的第一挡杆组件和第二挡杆组件分别包括可上下运动的挡杆；
所述的第一挡杆组件设置在第二挡杆组件的外侧，第一拨杆的长度大于第二拨杆的长度，使得第一挡杆组件的挡杆向上运动时只阻挡第一拨杆；
所述的第二挡杆组件的挡杆的长度小于第一挡杆组件的挡杆的长度，第二拨杆与外桶的底壁之间的距离小于第一拨杆与外桶的底壁之间的距离，使得第二挡杆组件的挡杆向上运动时只阻挡第二拨杆。
进一步地，所述的第一挡杆组件和第二挡杆组件均包括密封套和可上下运动的挡杆，挡杆的上部穿过外桶的底壁位于内桶与外桶之间，下部位于外桶的底壁外部，密封套套在挡杆的上部且能够随着挡杆的运动伸缩，密封套的另一端与外桶的底壁之间密封连接。
进一步地，所述的第一挡杆组件和第二挡杆组件还包括压缩弹簧，压缩弹簧设置在挡杆的下部，压缩弹簧一端抵在外桶的底壁上，另一端抵在档杆的下端端部；所述的压缩弹簧在挡杆上升时压缩，用于提供档杆弹性力以使其下降回位。
进一步地，所述的驱动装置还包括压板、支架、拉杆和牵引电机，支架固定在外桶的 底壁外侧，拉杆可转动的安装在支架上，拉杆的一端连接牵引电机，另一端与压板固定连接，压板的两端分别压在第一挡杆组件和第二挡杆组件上；
所述的拉杆和压板在牵引电机的牵引下绕着支架转动，压板的一端上升，压动第一挡杆组件向上运动，压板的另一端下降，第二挡杆组件向下运动。
本发明的内桶的只在侧壁的上部设置一周脱水排水孔，脱水排水孔设置在洗衣机内桶最大进水量以上的位置，在脱水时用于将脱出的水从此排出，而内桶侧壁的其它部位则是封闭设计的，不设置任何通孔结构。同时，内桶的底壁上除了设置一个孔径较大的排水口外，所述的排水口在洗涤和漂洗过程中关闭，在排水时打开排水口，而内桶底壁的其它部位则是封闭设计的。
本发明的排水结构适用于洗涤、漂洗时内外桶之间无水的洗衣机，内桶的底壁上设置排水口，排水结构的封水盖在洗涤或者漂洗的过程中在杠杆结构的作用下关闭排水口关闭排水口，排水时，封水盖在杠杆结构的作用下打开排水口，而杠杆结构在驱动装置的驱动作用下实现杠杆运动。因此，本发明的排水结构利用杠杆结构的阻力臂端的上升、下降带动封水盖关闭、打开排水口，实现洗衣机的排水，而且结构简单，安装方便，具有良好的市场推广价值。
附图说明
图1本发明的排水结构安装在内桶底部的立体图；
图2本发明的排水结构安装在内桶底部的又一立体图；
图3本发明的凸轮的立体图；
图4本发明的排水结构安装在外桶底部的立体图；
图5本发明的图4的俯视图；
图6本发明的图4的剖视图；
图7本发明的第一挡杆组件和第二挡杆组件的立体图；
图8本发明的第一挡杆或第二挡杆的剖视图；
图9本发明的工作原理示意图；
图10本发明的排水结构开启状态的立体图；
图11本发明的排水结构关闭状态的立体图；
图12本发明实施例二的立体图；
图13本发明实施例二的主视图。附图中的标号说明：1-内桶  2-扭簧  3-杠杆  4-滑 轮  5-框状结构  6-杠杆支架  7-挡水筋  8-封水盖  9-第一拨杆  10-轮廓曲面  11-第二拨杆  12-凸轮  13-外桶  14-外桶排水口  15-凹槽结构  16-第一挡杆组件  17-第二挡杆组件  18-拉绳  19-牵引电机  20-压板  21-支架  22-拉杆  23-挡杆  24-螺母  25-密封套  26-固定盘  27-压缩弹簧  28-固定座  29-阻挡螺母  34-第一限位部  35-第二限位部  36-基曲面  37-滑动曲面  38-止回曲面。
具体实施方式
下面结合附图对本发明的一种洗衣机排水结构进行详细描述：
如图1所示，一种洗衣机排水结构，用于洗涤、漂洗时内外桶之间无水的洗衣机，所述的排水结构包括封水盖8、杠杆结构和驱动装置，杠杆结构的阻力臂端连接封水盖8，动力臂端设置用于驱动杠杆结构工作的驱动装置，所述内桶1的底壁设置排水口，所述的杠杆结构在驱动装置的驱动下带动封水盖8在洗涤和漂洗过程中关闭排水口，在排水时打开排水口。
本发明的内桶1的只在侧壁的上部设置一周脱水排水孔，脱水排水孔设置在洗衣机内桶最大进水量以上的位置，在脱水时用于将脱出的水从此排出，而内桶1侧壁的其它部位则是封闭设计的，不设置任何通孔结构。同时，内桶1的底壁上除了设置一个孔径较大的排水口外，所述的排水口在洗涤和漂洗过程中关闭，在排水时打开排水口，而内桶底壁的其它部位则是封闭设计的。
本发明的排水结构适用于洗涤、漂洗时内外桶之间无水的洗衣机，内桶1的底壁上设置排水口，排水结构的封水盖8在洗涤或者漂洗的过程中在杠杆结构的作用下关闭排水口关闭排水口，封水盖8在排水时在杠杆结构的作用下打开排水口，而杠杆结构在驱动装置的驱动作用下实现杠杆运动。因此，本发明的排水结构利用杠杆结构的阻力臂端的上升、下降带动封水盖8关闭、打开排水口，实现洗衣机的排水，而且结构简单，安装方便，具有良好的市场推广价值。
作为本发明的一种优选实施方式，所述的杠杆结构包括杠杆3和杠杆支架6，杠杆支架6固定在内桶1的底壁外侧，杠杆3的中部可转动的安装在杠杆支架6上，所述的封水盖8连接杠杆3的阻力臂端，所述的驱动装置设置在杠杆3的动力臂端，驱动装置驱动杠杆3绕着杠杆支架6转动。
本发明的杠杆3的阻力臂端连接封水盖8，动力臂端与驱动装置相连接，又本发明的杠杆结构设置在内桶1的底壁外侧，因此，动力臂端在驱动装置的驱动下向上运动，阻力臂 端则带动封水盖8向下运动，排水口打开，动力臂端在驱动装置的驱动下向下运动，阻力臂端则带动封水盖8向上运动，排水口关闭。因此，本发明的排水结构采用杠杆结构，排水口的打开或者关闭均受到杠杆的作用，更加可靠。
作为本发明的一种优选实施方式，所述封水盖8与杠杆结构的阻力臂端通过铰链连接，封水盖8可绕杠杆结构的阻力臂端的中心线自由转动，封水盖8与内桶底壁之间具有0～15°活动夹角，优选地，所述的活动夹角为5°。由于杠杆结构的运动轨迹是直线，所以当封水盖8盖在排水口上时，有可能会一部分先接触而另一部分还未接触，会导致排水口盖的不严而漏水，将排水盖8采用铰接的方式连接在杠杆结构上，这样可使得封水盖8具有一定的活动角度，更加便于封水盖8盖住排水口。
作为本发明的一种优选实施方式，所述的内桶1的排水口外围设置挡水筋7，挡水筋的作用主要是防止排水口排水时水流对杠杆结构进行冲刷造成杠杆结构不稳定，甚至造成损坏。进一步地，挡水筋7上对应杠杆3处设置豁口，这样可防止挡水筋7妨碍杠杆3正常上升、下降，使得封水盖8的关闭、开启更加顺利。由于挡水筋7只是为了减少流向杠杆结构处的水流，优选地，所述的挡水筋7设置在排水口靠近杠杆结构的一侧。
如何实现本发明的杠杆结构进行杠杆运动，进而带动封水盖8开启、关闭是本发明的关键点。因此，本发明采用了如下的技术方案来驱动杠杆结构进行杠杆运动：
如图2所示，本发明所述的驱动装置包括凸轮12，凸轮12可转动的安装在内桶1的底壁外侧，凸轮12的轮廓曲面10与杠杆3的动力臂端相接触，所述的轮廓曲面10随着凸轮12转动下压/松开杠杆3的动力臂实现杠杆结构的杠杆运动。
因此，本发明通过凸轮12在转动过程中，通过轮廓曲面10的不同曲面与杠杆3的动力臂端接触，当曲率半径大的面与杠杆3的动力臂端接触，凸轮12下压杠杆3的动力臂，杠杆3的动力臂端受压向上运动，杠杆3的阻力臂端向下运动带动封水盖8打开排水口；当曲率半径小的面与与杠杆3的动力臂端接触，凸轮12松开杠杆3的动力臂，杠杆3的动力臂端向下回位，杠杆3的阻力臂端向上运动带动封水盖8关闭排水口。
本发明的轮廓曲面10包括至少包括第一曲面、第二曲面和第三曲面，第一曲面的的曲率半径逐渐增大，第二曲面的曲率半径等于第一曲面的曲率半径的最大值，第三曲面的曲率半径略小于第二曲面的曲率半径。因此，本发明的封水盖8关闭时，轮廓曲面10的第一曲面与杠杆3的动力臂端接触，轮廓曲面10随着凸轮12的转动过程中，第一曲面、第二曲面分别与杠杆3的动力臂端接触，当达到曲率半径最大的第二曲面后继续转动至第三曲面后停止，第三曲面下压杠杆3的动力臂端，封水盖8打开，这样主要是当凸轮12停止转 动后，第三曲面的曲率半径略小于第二曲面的曲率半径可防止凸轮3回转，确保封水盖8打开状态更加的可靠。
本发明的杠杆3的动力臂端的端部设置一框状结构5，框状结构5内部可转动的安装有滑轮4，滑轮4与凸轮12的轮廓曲面10接触，这样可减少凸轮12和杠杆3的动力臂端的接触摩擦，过渡更加的平稳，不会产生噪音。
本发明的封水盖8打开排水口，主要是靠凸轮12下压杠杆3动力臂端实现，而封水盖8关闭排水口，凸轮12松开杠杆3的动力臂端，杠杆3动力臂端向下回位实现，因此，确保杠杆3的动力臂端在凸轮12松开时回位是确保封水盖8关闭排水口的关键所在。因此，作为本发明的一种优选实施方式，所述杠杆结构的杠杆3和支架6之间设置用于杠杆3在轮廓曲面10松开时复位的扭簧2，所述的扭簧2在轮廓曲面10下压杠杆3的动力臂时发生形变，在轮廓曲面10松开杠杆3的动力臂时恢复形变。
本发明的扭簧10在凸轮12下压杠杆3时发生形变，具有一定的弹性力，在凸轮12松开杠杆3时，扭簧10为了恢复形变，弹性力施加在杠杆3上使其动力臂端下降。本发明通过扭簧10即可实现杠杆3的复位，结构简单，安装方便，且可靠有效。
上述技术方案解决了杠杆3的驱动问题，但是凸轮12的转动如何实现是实现杠杆3进行杠杆运动的关键，具体的，采用以下技术方案：
如图3、图4、图5及图6所示，本发明所述的洗衣机包括同轴安装在外桶13内部的内桶1。
本发明所述的驱动装置还包括安装在外桶13的底壁上的第一挡杆组件16和第二挡杆组件17，所述的凸轮12上设置第一拨杆9和第二拨杆11；
所述的内桶1正向转动时，第一挡杆组件16阻挡第一拨杆9使凸轮12反向转动，轮廓曲面10下压杠杆结构，封水盖8打开排水口，内桶1反向转动时，第二挡杆组件17阻挡第二拨杆11使凸轮12正向转动，轮廓曲面10松开杠杆结构，封水盖8关闭排水口。
本发明所述的正向转动或者反向转动并不限定内桶1朝着某一固定的方向转动，只是限定了内桶1在排水时需要进行双向的旋转，例如当顺时针转动为正方向时，则逆时针转动为反方向转动，反之亦然，本发明的附图中以内桶1顺时针转动为正方向，内桶1逆时针转动为反方向。本发明的内桶1进行双向转动，以实现在排水前打开封水盖8，在排水完成后关闭封水盖8。
作为本发明的一种优选实施方式，所述的第一挡杆组件16和第二挡杆组件17分别包括可上下运动的挡杆23。所述的第一挡杆组件16和第二挡杆组件17的挡杆23需要分别单 独作用于第一拨杆9和第二拨杆11，如果作用对象错误，则不能实现凸轮12的转动、复位。
因此，所述的第一挡杆组件16设置在第二挡杆组件17的外侧，第一拨杆9的长度大于第二拨杆11的长度，使得第一挡杆组件16的挡杆23向上运动时只阻挡第一拨杆9。
这样将第一挡杆组件16设置在第二拨杆11的自由端外侧，第一挡杆组件16向上运动时不可能阻挡到第二拨杆11，而只能阻挡第一拨杆9，第一拨杆9在其阻挡下带动凸轮12反向转动，下压杠杆3的动力臂端，动力臂端上升，阻力臂端下降，封水盖8打开排水口。
本发明所述的第二挡杆组件17的挡杆23的长度小于第一挡杆组件16的挡杆23的长度，第二拨杆11与外桶13的底壁之间的距离小于第一拨杆9与外桶13的底壁之间的距离，使得第二挡杆组件17的挡杆23向上运动时只阻挡第二拨杆11。
这样，第二挡杆组件17的挡杆23向上运动的高度只能阻挡到第二拨杆11而阻挡不到第一拨杆9，第二拨杆11在其阻挡下带动凸轮12正向转动，松开杠杆3的动力臂端，动力臂端下降，阻力臂端上升，封水盖8关闭排水口。
本发明所述的第一拨杆9和第二拨杆11的长度满足：第一拨杆9在第一挡杆组件16阻挡下带动凸轮12转动到轮廓曲面10的第三曲面与杠杆3的动力臂端接触后与其分离，第二拨杆11在第二挡杆组件17阻挡下带动凸轮12转动到轮廓曲面10的第一曲面与杠杆3的动力臂端接触后与其分离。
如图7、图8所示，本发明所述的第一挡杆组件16和第二挡杆组件17均包括挡杆23、螺母24、密封套25、固定盘26和压缩弹簧27，所述的挡杆23穿过外桶13的底壁，本发明的第一挡杆组件16和第二挡杆组件17的挡杆23可上下运动，以阻挡第一拨杆9和第二拨杆11。挡杆23的上部位于内桶1与外桶13之间，下部位于外桶13的底壁外部，所述的密封套25套在挡杆23的上部且能够随着挡杆23的运动伸缩，密封套25一端通过螺母24固定在挡杆23上，另一端通过固定盘26固定在外桶13的底壁上并与其密封，以确保第一挡杆组件16和第二挡杆组件17与外桶13之间密封，防止漏水。所述的压缩弹簧27设置在挡杆23的下部，所述的挡杆23的下端端部设置用于阻挡压缩弹簧27的一端的阻挡螺母29，所述的压缩弹簧27设置在外桶13的底壁与阻挡螺母29之间。进一步地，所述的外桶13上安装有固定座28，所述的挡杆23穿过固定座28，压缩弹簧27设置在固定座28与阻挡螺母29之间，这样可防止压缩弹簧27受压时施力于外桶13上，造成外桶13频繁受压造成损坏。
由于本发明的杠杆结构、凸轮12安装在内桶1和外桶13之间，因此为了提供其足够的安装空间，所述的外桶13的底壁设置凹槽结构15，所述的第一挡杆组件16和第二挡杆 组件17安装在凹槽结构15上，所述的凹槽结构15上设置外桶排水口14。
为了实现本发明的第一挡杆组件16和第二挡杆组件17的挡杆23上下运动，作为本发明的一种优选实施方式，如图4、图5及图6所示，所述的驱动装置还包括压板20、支架21、拉杆22和牵引电机19，支架21固定在外桶13的底壁外侧，拉杆22可转动的安装在支架21上，拉杆22的一端连接牵引电机19，另一端与压板20固定连接，压板20的两端分别压在第一挡杆组件16和第二挡杆组件17上；
所述的拉杆22和压板20在牵引电机19的牵引下绕着支架21转动，压板20的一端上升，压动第一挡杆组件16向上运动，压板20的另一端下降，第二挡杆组件17向下运动。
作为本发明的一种优选实施方式，所述的牵引电机19通过拉绳18与拉杆22相连接。
实施例一
如图2及图3所示，本实施例与上述实施方式的区别仅在于，提供了一种适用于本发明洗衣机排水结构的一种凸轮结构12，凸轮结构12整体呈扇形结构，凸轮结构12上设置轮廓曲面10，由于本发明的凸轮12安装在洗衣机的内桶1的底壁上，就凸轮12安装后的位置而言，所以轮廓曲面设置在凸轮12的上表面。
本实施例所述的凸轮12上设置第一拨杆9和第二拨杆12，第一拨杆9和第二拨杆12具有一定弧度设置，弧度的中心位于第一挡杆组件16和第二挡杆组件17侧。这样，当第一挡杆组件16、第二挡杆组件17阻挡第一拨杆9、第二拨杆12，可使第一挡杆组件16、第二挡杆组件17沿着第一拨杆9、第二拨杆12的圆弧结构滑出，使得两者之间的作用更加的均衡，过渡更加平稳，防止凸轮12转动突变。
实施例二
如图12及图13所示，本实施例与上述实施方式的区别仅在于，又提供了一种适用于本发明洗衣机排水结构的一种凸轮结构12，凸轮结构12整体呈圆柱形，凸轮结构12上设置轮廓曲面10，由于本发明的凸轮12安装在洗衣机的内桶1的底壁上，就凸轮12安装后的位置而言，所以轮廓曲面10设置在凸轮12的上表面。
本实施例所述的凸轮12上设置第一拨杆9和第二拨杆12。
本实施例所述的凸轮12上还设置第一限位部34和第二限位部35，所述的第一限位部34用于限定凸轮12转动到封水盖8打开排水口位置后停止，所述的第二限位部35用于限定凸轮12转动到封水盖8关闭排水口位置后停止。
因此，由于第一限位部34和第二限位部35对凸轮12的转动限位作用，使得凸轮12不可能整个圆环面都能与杠杆结构接触，因此，本实施例的轮廓曲面10只设置在第一限位部34和第二限位部35之间的凸轮12之间的上表面。
本实施例的轮廓曲面10至少包括基曲面36、滑动曲面37和止回曲面38，基曲面36 的竖直行程高度最低，滑动曲面37的竖直行程高度逐渐变大，而止回曲面38的竖直行程沿着滑动曲面37的竖直行程的最大值逐渐减小，但是减小的幅度不大。这样，主要是由本发明的排水结构的开启和关闭的状态所决定的，当基曲面36与杠杆结构接触时，封水盖8盖在排水口上，此时，本发明的排水结构处于关闭状态；当凸轮12转动时杠杆结构沿着滑动曲面37滑动直至达到行程最大位置处，封水盖8打开排水口，此时本发明的排水结构处于开启状态，而止回曲面38的竖直行程略小于滑动曲面37的最大行程，可使杠杆结构保持在受压状态，进而使得本发明的排水结构保持开启状态；而要想再次关闭本发明的排水结构，只需要使凸轮12反向转动即可。
进而，本发明的第一限位部34和第二限位部35是用于限制凸轮12的转动，当凸轮转动到基曲面36或者止回曲面38位置后，需要凸轮12停止转动，而此时凸轮12可能在惯性的作用下继续转动，这样可能会造成封水盖8不能正常的开启或者盖上，或者会对凸轮12造成损坏。
本实施例的第一限位部34和第二限位部35均为杆状结构，第一限位部34和第二限位部35均小于第一拨杆9和第二拨杆12，从而不会影响到第一拨杆9和第二拨杆12与挡杆组件接触。
进一步地，本实施例第一限位部34和第二限位部35的长度比凸轮12最外圈与支架6之间的距离，这样，当凸轮12转到指定位置后，第一限位部34和第二限位部35便会受到支架6的阻挡作用而使其停止下来。
实施例三
如图9、图10及图11所示，本实施例以实施例2为例对本发明的排水结构的工作原理进行详细的描述。如图9所示，图中实线箭头Ⅴ和虚线箭头Ⅵ均为内桶1的转动方向，实线箭头Ⅴ为排水结构关闭所需要的内桶1转动的方向，虚线箭头Ⅵ排水结构打开所需要的内桶1转动的方向。图中圆虚线Ⅰ为第一挡杆组件16相对于内桶1的运动轨迹，圆虚线Ⅱ为第二挡杆组件17相对于内桶1的运动轨迹。圆虚线Ⅲ为第一拨杆9相对于内桶1的运动轨迹，圆虚线Ⅳ为第二拨杆11相对于内桶1的运动轨迹。
如图9及图10所示，本发明的排水结构开启包括以下过程：
1)内桶1沿着图9中虚线箭头Ⅵ的方向转动。
2)牵引电机19启动。
3)牵引电机19拉动拉杆22转动，拉杆22带动压板20绕着支架21转动，压板20压着第一挡杆组件16的一端上升，第一挡杆组件16在压板20的压力下向上运动。
4)第一挡杆组件16的挡杆23上升至能够阻挡凸轮12的第一拨杆9的位置后，牵引电机19停止牵引。
5)凸轮12随着内桶1沿着图9中虚线箭头Ⅵ的方向转动，当运动至第一挡杆组件16 处，第一拨杆9受到第一挡杆组件16的阻挡而使凸轮12在随着内桶1转动的同时自转。
6)凸轮12转动带动轮廓曲面10运动，所述的杠杆3的动力臂端相对于轮廓曲面10从基曲面36运动到滑动曲面37最后到达止回曲面38，凸轮12的第二限位部35卡在杠杆支架6上而使凸轮12停止，与此同时，第一拨杆9沿着圆虚线Ⅲ转动，第一拨杆9转出圆虚线Ⅲ与圆虚线Ⅰ的交叉区域，第一拨杆9与第一挡杆组件16分离。
7)杠杆3的动力臂端受到轮廓曲面10的止回曲面38的压力而上升，进而带动杠杆3的阻力臂端下降，杠杆3的阻力臂端带动封水盖8下降，排水口打开，实现了本发明的排水装置的排水。
如图9及图11所示，本发明的排水结构关闭包括以下过程：
1)内桶1沿着图9中实线箭头Ⅴ的方向转动。
2)牵引电机19回位。
3)拉杆22在复位扭簧的带动下回位，拉杆22带动压板20绕着支架21回转，压板20压着第二挡杆组件17的一端上升，第二挡杆组件17在压板20的压力下向上运动。
4)第二挡杆组件17的挡杆23上升至能够阻挡凸轮12的第二拨杆11的位置后，牵引电机19回复到初始位置。
5)凸轮12随着内桶1沿着图9中实线箭头Ⅴ的方向转动，当运动至第二挡杆组件17处，第二拨杆11受到第二挡杆组件17的阻挡而使凸轮12在随着内桶1转动的同时反向自转。
6)凸轮12反向转动带动轮廓曲面10运动，所述的杠杆3的动力臂端相对于轮廓曲面10从止回曲面38运动到滑动曲面37最后返回到基曲面36，凸轮12的第一限位部34卡在杠杆支架6上而使凸轮12停止，与此同时，第二拨杆11沿着圆虚线Ⅳ转动，第二拨杆11转出圆虚线Ⅳ与圆虚线Ⅱ的交叉区域，第二拨杆11与第一挡杆组件17分离。
7)轮廓曲面10的基曲面36返回至杠杆3的动力臂端下部，杠杆3的动力臂端不再受压，杠杆3的阻力臂端在扭簧2的弹性作用下回位，杠杆3的阻力臂端带动封水盖8上升关闭排水口，实现了本发明的排水装置的排水。
以上所述仅是本发明的较佳实施例而已，并非对本发明作任何形式上的限制，虽然本发明已以较佳实施例揭露如上，然而并非用以限定本发明，任何熟悉本专利的技术人员在不脱离本发明技术方案范围内，当可利用上述提示的技术内容作出些许更动或修饰为等同变化的等效实施例，但凡是未脱离本发明技术方案的内容，依据本发明的技术实质对以上实施例所作的任何简单修改、等同变化与修饰，均仍属于本发明方案的范围内。

Claims (11)

  1. 一种洗衣机排水结构，用于洗涤、漂洗时内外桶之间无水的洗衣机，洗衣机包括桶侧壁下部无孔的内桶(1)，内桶其特征在于，所述的排水结构包括封水盖(8)、杠杆结构和驱动装置，杠杆结构的阻力臂端连接封水盖(8)，动力臂端设置用于驱动杠杆结构工作的驱动装置，所述内桶(1)的底壁设置排水口，所述的杠杆结构在驱动装置的驱动下带动封水盖(8)在洗涤和漂洗过程中关闭排水口，在排水时打开排水口。
  2. 根据权利要求1所述的一种洗衣机排水结构，其特征在于，所述的杠杆结构包括杠杆(3)和杠杆支架(6)，杠杆支架(6)固定在内桶(1)的底壁外侧，杠杆(3)可转动的安装在杠杆支架(6)上，所述的驱动装置驱动杠杆(3)绕着杠杆支架(6)转动。
  3. 根据权利要求1所述的一种洗衣机排水结构，其特征在于，所述封水盖(8)与杠杆结构的阻力臂端通过铰链连接，封水盖(8)可绕杠杆结构的阻力臂端的中心线自由转动，封水盖(8)与内桶底壁之间具有0～15°活动夹角，优选地，所述的活动夹角为5°。
  4. 根据权利要求1、或2、或3所述的一种洗衣机排水结构，其特征在于，所述的驱动装置包括凸轮(12)，凸轮(12)可转动的安装在内桶(1)的底壁外侧，凸轮(12)的轮廓曲面(10)设置在杠杆(3)的动力臂端上方，所述的轮廓曲面(10)随着凸轮(12)转动下压/松开杠杆(3)的动力臂实现杠杆结构的杠杆运动。
  5. 根据权利要求4所述的一种洗衣机排水结构，其特征在于，所述的凸轮(12)上还设置第一限位部(34)和第二限位部(35)，所述的第一限位部(34)用于限定凸轮(12)转动到封水盖(8)打开排水口位置后停止，所述的第二限位部(35)用于限定凸轮(12)转动到封水盖(8)关闭排水口位置后停止。
  6. 根据权利要求4所述的一种洗衣机排水结构，其特征在于，所述杠杆结构的杠杆(3)和支架(6)之间设置用于杠杆(3)在轮廓曲面(10)松开时复位的扭簧(2)，所述的扭簧(2)在轮廓曲面(10)下压杠杆(3)的动力臂时发生形变，在轮廓曲面(10)松开杠杆(3)的动力臂时恢复形变。
  7. 根据权利要求4所述的一种洗衣机排水结构，其特征在于，所述的洗衣机包括同轴安装在内桶(1)外部的外桶(13)；
    所述的驱动装置还包括安装在外桶(13)的底壁上的第一挡杆组件(16)和第二挡杆组件(17)，所述的凸轮(12)上设置第一拨杆(9)和第二拨杆(11)；
    所述的内桶(1)正向转动时，第一挡杆组件(16)阻挡第一拨杆(9)使凸轮(12)反向转动，轮廓曲面(10)下压杠杆结构，封水盖(8)打开排水口，内桶(1)反向转动时，第二挡杆组件(17)阻挡第二拨杆(11)使凸轮(12)正向转动，轮廓曲面(10)松 开杠杆结构，封水盖(8)关闭排水口。
  8. 根据权利要求7所述的一种洗衣机排水结构，其特征在于，所述的第一挡杆组件(16)和第二挡杆组件(17)分别包括可上下运动的挡杆(23)；
    所述的第一挡杆组件(16)设置在第二挡杆组件(17)的外侧，第一拨杆(9)的长度大于第二拨杆(11)的长度，使得第一挡杆组件(16)的挡杆(23)向上运动时只阻挡第一拨杆(9)；
    所述的第二挡杆组件(17)的挡杆(23)的长度小于第一挡杆组件(16)的挡杆(23)的长度，第二拨杆(11)与外桶(13)的底壁之间的距离小于第一拨杆(9)与外桶(13)的底壁之间的距离，使得第二挡杆组件(17)的挡杆(23)向上运动时只阻挡第二拨杆(11)。
  9. 根据权利要求7所述的一种洗衣机排水结构，其特征在于，所述的第一挡杆组件(16)和第二挡杆组件(17)均包括密封套(25)和可上下运动的挡杆(23)，挡杆(23)的上部穿过外桶(13)的底壁位于内桶(1)与外桶(13)之间，下部位于外桶(13)的底壁外部，密封套(25)套在挡杆(23)的上部且能够随着挡杆(23)的运动伸缩，密封套(25)的另一端与外桶(13)的底壁之间密封连接。
  10. 根据权利要求9所述的一种洗衣机排水结构，其特征在于，所述的第一挡杆组件(16)和第二挡杆组件(17)还包括压缩弹簧(17)，压缩弹簧(17)设置在挡杆(23)的下部，压缩弹簧(17)一端抵在外桶(13)的底壁上，另一端抵在档杆(23)的下端端部；所述的压缩弹簧(17)在挡杆(23)上升时压缩，用于提供档杆(23)弹性力以使其下降回位。
  11. 根据权利要求7所述的一种洗衣机排水结构，其特征在于，所述的驱动装置还包括压板(20)、支架(21)、拉杆(22)和牵引电机(19)，支架(21)固定在外桶(13)的底壁外侧，拉杆(22)可转动的安装在支架(21)上，拉杆(22)的一端连接牵引电机(19)，另一端与压板(20)固定连接，压板(20)的两端分别压在第一挡杆组件(16)和第二挡杆组件(17)上；
    所述的拉杆(22)和压板(20)在牵引电机(19)的牵引下绕着支架(21)转动，压板(20)的一端上升，压动第一挡杆组件(16)向上运动，压板(20)的另一端下降，第二挡杆组件(17)向下运动。
PCT/CN2015/095292 2015-02-13 2015-11-23 一种洗衣机排水结构 WO2016127685A1 (zh)

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KR1020177025463A KR20170117145A (ko) 2015-02-13 2015-11-23 세탁기 배수 구조
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