WO2019034090A1 - 升降装置和包括升降装置的洗衣机 - Google Patents

升降装置和包括升降装置的洗衣机 Download PDF

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Publication number
WO2019034090A1
WO2019034090A1 PCT/CN2018/100695 CN2018100695W WO2019034090A1 WO 2019034090 A1 WO2019034090 A1 WO 2019034090A1 CN 2018100695 W CN2018100695 W CN 2018100695W WO 2019034090 A1 WO2019034090 A1 WO 2019034090A1
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WIPO (PCT)
Prior art keywords
link
lifting device
cam
washing machine
connecting rod
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PCT/CN2018/100695
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English (en)
French (fr)
Inventor
单世强
宋华诚
许升
吕佩师
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青岛海尔滚筒洗衣机有限公司
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Publication of WO2019034090A1 publication Critical patent/WO2019034090A1/zh

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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
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/12—Casings; Tubs
    • D06F39/125—Supporting arrangements for the casing, e.g. rollers or legs

Definitions

  • the invention belongs to the field of washing machine machinery, and particularly provides a lifting device and a washing machine including the lifting device.
  • the hand buckles are often arranged on both sides of the washing machine, and can be moved by manual lifting; some are provided with casters on the bottom plate of the washing machine body to facilitate the movement of the washing machine. There are also hydraulic and pneumatic devices installed on the bottom plate of the washing machine body to prevent the casters from directly contacting the ground bearing capacity by lifting the washing machine.
  • the prior art solution still has certain problems, such as time-consuming and laborious; and the wheel body of the caster directly contacts the ground to bear the weight, and the wheel body is easily deformed and damaged during use, and the function is lost, causing the washing machine body to tilt and affecting normal use;
  • the air pressure device is not only complicated in structure, but also has certain noise, which affects the user's experience and experience.
  • the present invention provides a lifting device for carrying a supported device,
  • the lifting device includes a driving device, a first link and a supporting leg; the driving device is disposed at a bottom of the supported device; the supporting leg is movably disposed at a bottom of the supported device in a vertical direction; a first end of the first link is pivotally coupled to the drive device, a second end of the first link is pivotally coupled to the support leg; and the drive device is drivable by the first link
  • the support foot moves in a vertical direction to raise or lower the supported device.
  • the first link includes a pivoting end, the pivoting end being between the first end of the first link and the second end of the first link
  • the first link is pivotally coupled to the supported device by the pivoting end such that when the driving device drives the first end of the first link, the first link The two ends drive the support legs to move in the vertical direction.
  • the lifting device further includes a cam, and a center of a circle of the cam is coaxially fixed with an output shaft of the driving device; the cam is away from a center end of the base circle The portion is pivotally coupled to the first end of the first link.
  • the lifting device further includes a second link, the first end of the second link being pivotally coupled to the end of the cam, the second link The second end is pivotally coupled to the first end of the first link.
  • the driving device comprises a power device and a speed reducer, the speed reducer is connected to the supported device, and the power device is connected to the speed reducer; the power device
  • the output shaft is fixedly coupled to the input shaft of the reducer, and the output shaft of the reducer is fixedly coupled to the center of the cam.
  • the power device is a motor.
  • one of the driving devices is provided with two of the first links, and each of the first links is respectively provided with one of the supporting legs.
  • the bottom of the support foot is provided with a walking wheel.
  • the walking wheel is a universal wheel.
  • the present invention provides a washing machine comprising a body and a lifting device disposed at a bottom of the body, the lifting device being the lifting device of any of the above preferred embodiments.
  • the first link is driven by a driving device, and the first link drives the support leg to move in a vertical direction, thereby The body rises or falls. Therefore, the lifting device of the invention can realize the lifting or falling of the washing machine body, and has a simple structure, which makes the movement of the washing machine more convenient and quick, and optimizes the user experience.
  • the bottom of the support leg is provided with a walking wheel
  • the first end of the first link is connected with the driving device
  • the second end of the first connecting rod is connected with the walking wheel.
  • the driving device is a motor
  • the traveling wheel is a universal wheel.
  • the motor drives the cam to rotate through the speed reducer
  • the rotating cam drives the first end of the first link to move by the second link.
  • the first link is pivotally connected to the body through the pivot end, and thus forms a lever structure, so as the first end of the first link moves, the second end of the first link pivots toward the first end The end rotates in the same direction, thereby causing the universal wheel to move in the vertical direction, causing the body to rise or fall. Therefore, the lifting device of the present invention has a simpler structure than the hydraulic and pneumatic lifting devices of the prior art.
  • Figure 1 is a side view of the washing machine of the present invention
  • Figure 2 is a first side view of the lifting device of the present invention
  • Figure 3 is a second side view of the lifting device of the present invention.
  • Figure 4 is a schematic view showing the connection relationship of the first connecting rod in the lifting device of the present invention.
  • Figure 5 is a schematic view showing the structure of a first crossbar of the present invention.
  • Figure 6 is a schematic view showing the connection relationship of the first crossbar of the present invention.
  • Figure 7 is a schematic structural view of a second crossbar of the present invention.
  • Figure 8 is a schematic view showing the connection relationship of the second crossbar of the present invention.
  • Figure 9 is a front elevational view of the speed reducer of the present invention.
  • Figure 10 is a rear elevational view of the speed reducer of Figure 9;
  • Figure 11 is a schematic structural view of a movable switch and a supporting roller
  • Figure 12 is a circuit connection diagram when the washing machine is raised
  • Figure 13 is a circuit connection diagram when the washing machine is lowered
  • the embodiments of the present invention are merely used to explain the technical principles of the present invention and are not intended to limit the scope of the present invention.
  • the embodiment of the present invention describes the lifting device of the present invention in combination with a washing machine
  • the lifting device of the present invention can also be applied to other devices, such as an air conditioner, a refrigerator, a safe, etc., and those skilled in the art can It is adjusted to suit the specific application, and the adjusted technical solution will still fall within the scope of the present invention.
  • the terms “installation”, “connected”, and “connected” are to be understood broadly, and may be fixed connection, for example, or It is a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and may be internal communication between the two elements.
  • the specific meanings of the above terms in the present invention can be understood on a case-by-case basis.
  • the washing machine of the present invention mainly comprises a body 1 and a lifting device 2.
  • the bottom of the body 1 is provided with or integrally formed with a fixed foot 13 and a beam 21.
  • the body 1 is provided with a rise button 11 and a down button 12 that control the operation of the lift device 2.
  • the lifting device 2 can lift the body 1 from the ground, and by operating the lowering button 12, the jacked up body 1 can be dropped back to the ground.
  • the lifting device 2 of the present invention can be used not only for a washing machine, but also for any other supported equipment such as an air conditioner, a sofa, a safe, a refrigerator, and the like. Those skilled in the art can appropriately adjust them according to actual needs, and the technical solutions after adjustment will still fall within the protection scope of the present invention.
  • the lifting device 2 of the present invention mainly includes a motor 22, a speed reducer 23, a first link 26, and a support leg (not shown).
  • the bottom of the supporting leg is provided with a universal wheel 28, and the supporting leg is slidably mounted on the beam 21 in the vertical direction
  • the speed reducer 23 is fixedly mounted on the beam 21, and the input end of the speed reducer 23 is connected to the motor 22.
  • the output end of the speed reducer 23 is operatively coupled to the first end of the first link 26, and the second end of the first link 26 is pivotally coupled to the top of the support leg.
  • those skilled in the art can also use any other feasible power device instead of the motor 22, such as a pneumatic motor or a hydraulic motor, as needed.
  • those skilled in the art can also omit the speed reducer 23 as needed, replacing the movement of the first end of the first link 26 by the motor 22 with a cylinder or cylinder.
  • the above described universal wheel 28 can be replaced by any other feasible walking wheel, for example, a fixed caster. It will also be understood by those skilled in the art that the speed reducer 23 and the universal wheel 28 can also be mounted directly to the bottom of the body 1. Further, those skilled in the art can also omit the setting of the universal wheel 28 as needed, and after the body 1 is lifted by the lifting device 2, the washing machine is transferred by means of other moving devices. For example, after the body 1 is lifted by the lifting device 2, the front fork of the small forklift is inserted into the bottom of the body 1, and the washing machine is transferred by the forklift.
  • the lifting apparatus of the present invention further includes a cam 24 and a pull rod 25 as a second link.
  • the center of the base circle of the cam 24 is coaxially fixed with the output shaft of the reducer 23, and the end of the cam 24 away from the center of the base circle is pivotally connected with the first end of the pull rod 25, and the second end of the pull rod 25 and the first link 26 are The first end is pivotally connected.
  • the driving cam 24 When the speed reducer 23 is in operation, the driving cam 24 is rotated, the cam 24 can drive the pull rod 25 to move up and down, and the pull rod 25 drives the first end of the first connecting rod 26 to move up and down, thereby causing the second end of the first connecting rod 26 to drive The wheel 28 is moved up and down to raise and lower the body 1.
  • the beam 21 is further provided with a bracket 27 and a sheath 29.
  • the first link 26 further includes a pivot end between the first end and the second end, the first link 26 being pivotally coupled to the bracket 27 by the pivot end.
  • the pivotally connected first link 26 and the bracket 27 form a lever structure. Specifically, when the first end of the first link 26 moves upward, the second end of the first link 26 moves downward; the first link 26 When the first end moves downward, the second end of the first link 26 moves upward.
  • the support post of the universal wheel 28 passes through the sheath 29 and is slidably coupled to the sheath 29 in the vertical direction.
  • the beam 21 should be broadly understood as a carrier for mounting the relevant components, and may be replaced by any other feasible structure. Further, it may be fixedly connected to the bottom of the body 1 or to the body. The bottom of 1 is an integral structure.
  • the first link 26 includes a first crossbar 261 and a second crossbar 262, and the bracket 27 includes a first bracket 271 and a second bracket 272.
  • the first crossbar 261 and the first bracket 271 constitute a first lever structure
  • the second crossbar 262 and the second bracket 272 constitute a second lever structure.
  • the first end portion 2611 of the first crossbar 261 is provided with a first end hole 2613
  • the second end 2612 of the first cross bar 261 is provided with a second end hole 2614.
  • a portion of the cross bar 261 adjacent the second end 2612 is provided with a first intermediate hole 2615 as a pivot end.
  • a pin (not shown) is coupled to the tie rod 25 through the first end hole 2613 to effect pivotal connection of the first crossbar 261 with the tie rod 25.
  • a pin (not shown) is coupled to the support post of the universal wheel 28 through the second end hole 2614 to effect pivotal connection of the first crossbar 261 with the universal wheel 28.
  • a pin (not shown) is coupled to the first bracket 271 through the first intermediate hole 2615 to effect pivotal connection of the first rail 261 with the first bracket 271.
  • the third end portion 2621 of the second crossbar 262 is provided with a third end hole 2623, and the fourth end 2622 of the second cross bar 262 is provided with a fourth end hole 2624, and second A second intermediate hole 2625 as a pivot end is provided in the middle of the cross bar 262 near the fourth end 2622.
  • a pin (not shown) is coupled to the tie rod 25 through the third end hole 2623 to effect pivotal connection of the second crossbar 262 to the tie rod 25.
  • a pin (not shown) is coupled to the support post of the universal wheel 28 through the fourth end hole 2624 to effect pivotal connection of the second crossbar 262 with the universal wheel 28.
  • a pin (not shown) is coupled to the second bracket 272 through the second intermediate hole 2625 to effect pivotal connection of the second rail 262 with the second bracket 271.
  • the hole 2615 needs to be a circular hole, and its diameter is slightly larger than the axial outer diameter of the first bracket 271.
  • the support column of the universal wheel 28 is vertically moved, and the second end hole 2614 is required to be in the shape of a strip, and the length direction of the strip shape is
  • the first cross bar 261 has the same length direction.
  • the second crossbar 262 and the second bracket 272 form a second lever structure, and the second intermediate hole 2625 of the second crossbar 262 is also circular, and the fourth end hole 2624 is also The strip shape is specifically the same as the second end hole 2614 on the first crossbar 261.
  • At least one of the first end holes 2613 and the third end holes 2623 on the two cross bars is required to be strip.
  • the longitudinal direction of the strip shape is the same as the length direction of the cross bar.
  • the first end 2613 of the hole is formed in an elongated shape, and the third end hole 2623 is circular.
  • the movable switch 30 and the idler 31 are disposed on the speed reducer 23.
  • the movable switch 30 is provided with a flexible button 301 and three terminals. The three terminals are referred to as a first terminal 302, a second terminal 303, and a third terminal 304, respectively.
  • the elastic button 301 is compressed and retracted, the movable switch 30 turns on the first terminal 302 and the second terminal 303 (as shown in FIG. 12); when the elastic button 301 is extended, the movable switch 30 turns on the first terminal 302 and The third terminal 304 (shown in Figure 13).
  • buttons or normally open switches
  • the up button 11 and the down button 12 in FIGS. 12 and 13 are normally open buttons (or normally open switches), that is, the up button 11 and the down button 12 are only pressed or operated. closure.
  • the idler 31 is coaxially fixed to the output shaft of the speed reducer 23, so that the idler 31 and the cam 24 can be rotated in synchronization, and the cam 24 is placed on both sides of the speed reducer 23.
  • the idler 31 is composed of two semicircles of different radii, which are respectively referred to as a first semicircle 311 and a second semicircle 312.
  • the radius of the first half circle 311 is smaller than the radius of the second semicircle 312, and a smooth transition between the first semicircle 311 and the second semicircle 312.
  • the lifting device for a washing machine of the present invention works as follows.
  • the universal wheel 28 in the normal state, the universal wheel 28 is in the retracted state; the eccentric convex shaft 241 is directly below the axis of the cam 24; the elastic button 301 is in contact with the transition zone of the first semicircle 311 and the second semicircle 312; The first terminal 302 and the second terminal 303 are turned on.
  • the motor 22 and the power source are turned on, and the motor 22 starts to rotate.
  • the motor 22 drives the cam 24 and the idler 31 to rotate in synchronization by the speed reducer 23.
  • the elastic button 301 is in sliding contact with the outer edge of the second semicircle 312.
  • the rotating cam 24 urges the pull rod 25 upward, and the upwardly moving pull rod 25 pulls the first end 2611 of the first crossbar 261 and the third end 2621 of the second crossbar 262 upward.
  • the first end 2611 and the third end 2621 move upward, the second end 2612 and the fourth end 2622 move downwardly and thus the universal wheel 28 is ejected.
  • the elastic button 301 When the idler 31 is rotated until the elastic button 301 is disengaged from the second semicircle 312, the elastic button 301 extends out of the movable switch 30.
  • the first terminal 302 and the second terminal 303 are disconnected, and the first terminal 302 and the third terminal 304 are in communication.
  • the motor 22 is de-energized to stop rotating, and the eccentric projection shaft 241 is directly above the axis of the cam 24.
  • the length of the universal wheel 28 being ejected is the longest, and the body 1 is lifted to the highest height.
  • the washing machine is supported by the four universal wheels 28, and the user pushes the washing machine, and the washing machine can be moved by the four universal wheels 28.
  • the motor 22 and the power source are turned on, and the motor 22 starts to rotate.
  • the motor 22 drives the cam 24 and the idler 31 to rotate in synchronization by the speed reducer 23.
  • the elastic button 301 is in sliding contact with the outer edge of the first semicircle 311.
  • the rotating cam 24 drives the pull rod 25 to move downward, and the downwardly moving pull rod 25 drives the first end 2611 of the first crossbar 261 and the third end 2621 of the second crossbar 262 downward.
  • the second end 2612 and the fourth end 2622 move upward and thus retract the universal wheel 28 to the body 1.
  • the elastic button 301 retracts the movable switch 30.
  • the first terminal 302 and the third terminal 304 are disconnected, and the first terminal 302 and the second terminal 303 are in communication.
  • the motor 22 is de-energized to stop rotating, the eccentric projection shaft 241 is directly below the axis of the cam 24, and the universal wheel 28 is retracted into the body 1, and the body 1 is abutted against the ground by the fixed foot 13.
  • the motor 22 preferably has a power-off self-locking device (such as a motor brake device).
  • a power-off self-locking device such as a motor brake device.
  • the motor 22 can also maintain the current angle, thereby enabling The universal wheel 28 remains in its current position. Therefore, the user can enable the universal wheel 28 to be ejected when the washing machine is powered on, and the washing machine can continue to be pushed after the washing machine is powered off, thereby ensuring that the washing machine can be pushed to any place where there is no power by the universal wheel 28.
  • the motor 22 is driven to rotate by the speed reducer 23, and the rotating cam 24 drives the first end of the first link 26 to move by means of the second link 25, the first connection
  • the first end of the rod 26 drives the universal wheel 28 to move in the vertical direction by driving the second end of the first link 26 to raise or lower the body 1. Therefore, the lifting device of the present invention is relative to the prior art.
  • the hydraulic and pneumatic lifting device has a simpler structure.
  • the lever structure formed by the first link 26 and the bracket 27 makes the second end of the first link 26 eject and retract the universal wheel 28 more easily and labor-saving, and the link structure is simple and easy to manufacture, and can be reduced. Cost of production.
  • the speed reducer 23 is provided with a resilient switch 30 and a carrier 31, by which the elastic switch 30 can be controlled to operate, and the up button 11 or the down button 12 can be turned on.
  • the lifting device 2 lifts the body 1 until the body 1 is lifted to the highest position.
  • the idler 31 rotates half a turn to disconnect the rise button 11 from the power source, the down button 12 is turned on, and the motor 22 stops rotating.
  • the lifting device 2 lowers the body 1 until the fixed foot 13 at the bottom of the body 1 comes into contact with the ground, and the universal wheel 28 is completely retracted into the body 1.
  • the idler 31 rotates half a turn to disconnect the drop button 12 from the power source, the rise button 11 is turned on, and the motor 22 stops rotating. Therefore, in the preferred embodiment of the present invention, the elastic switch 30 and the idler 31 on the speed reducer 23 make the rise and fall of the body 1 more reliable, avoiding excessive rotation of the cam 24, and falling when the body 1 is raised to the highest position.
  • the user can control the lifting device 2 to raise and lower the body 1 by operating the up button 11 and the down button 12, the operation is simpler, and the user's use experience is better.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Accessory Of Washing/Drying Machine, Commercial Washing/Drying Machine, Other Washing/Drying Machine (AREA)
  • Handcart (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)

Abstract

本发明属于洗衣机机械领域，具体提供一种升降装置和包括升降装置的洗衣机。本发明旨在解决现有洗衣机移动困难及其移动装置结构复杂的问题。本发明的升降装置包括凸轮、第一连杆、第二连杆和行走轮，其中凸轮基圆的圆心与驱动装置的输出轴同轴固定，凸轮的偏心凸出轴与第二连杆的第一端枢转连接，第二连杆的第二端与第一连杆的第一端枢转连接，第一连杆的第二端与行走轮枢转连接。驱动装置驱动凸轮转动，转动的凸轮通过第二连杆驱动第一连杆的第一端绕枢转端转动，进而使第一连杆的第二端带动行走轮在竖直方向上移动，从而使洗衣机的机体升起或落下。因此，本发明的升降装置不仅能够实现洗衣机的自动升降、移动，而且结构简单。

Description

升降装置和包括升降装置的洗衣机 技术领域
本发明属于洗衣机机械领域，具体提供一种升降装置和包括升降装置的洗衣机。
背景技术
目前大多数洗衣机移动起来是比较困难的，为了搬运方便常采用在洗衣机的两侧设置手扣，通过人工一起抬才能移动；有的在洗衣机机体的底托板上设置脚轮，来方便洗衣机的移动；也有的在洗衣机机体的底托板上设置液压、气压装置，通过实现洗衣机的升降来避免脚轮直接接触地面承重。
但是，现有技术方案还存在一定的问题，如费时费力；且脚轮的轮体直接接触地面承受重量，在使用时轮体容易变形损坏，失去作用，导致洗衣机机体倾斜，影响正常使用；设置液压、气压装置不仅结构复杂，还存在一定的噪音，影响用户的使用感受和体验等。
相应地，本领域需要一种新的洗衣机来解决上述问题。
发明内容
为了解决现有技术中的上述问题，即为了解决现有洗衣机移动困难以及现有移动装置结构复杂的问题，本发明提供了一种升降装置，所述升降装置用于承载被支撑设备，所述升降装置包括驱动装置、第一连杆和支撑脚；所述驱动装置设置在所述被支撑设备的底部；所述支撑脚沿竖直方向可移动地设置在所述被支撑设备的底部；所述第一连杆的第一端与所述驱动装置枢转连接，所述第一连杆的第二端与所述支撑脚枢转连接；所述驱动装置能够通过所述第一连杆驱动所述支撑脚在竖直方向上移动，从而使所述被支撑设备升起或落下。
在上述升降装置的优选技术方案中，所述第一连杆包括枢转端，所述枢转端位于所述第一连杆的第一端和所述第一连杆的第二端之间；所述第一连杆通过所述枢转端与所述被支撑设备枢转连接，使得当 所述驱动装置驱动所述第一连杆的第一端时，所述第一连杆的第二端带动所述支撑脚在竖直方向上移动。
在上述升降装置的优选技术方案中，所述升降装置还包括凸轮，所述凸轮的基圆的圆心与所述驱动装置的输出轴同轴固定；所述凸轮远离所述基圆的圆心的端部与所述第一连杆的第一端枢转连接。
在上述升降装置的优选技术方案中，所述升降装置还包括第二连杆，所述第二连杆的第一端与所述凸轮的所述端部枢转连接，所述第二连杆的第二端与所述第一连杆的第一端枢转连接。
在上述升降装置的优选技术方案中，所述驱动装置包括动力装置和减速器，所述减速器与所述被支撑设备相连接，所述动力装置与所述减速器相连接；所述动力装置的输出轴与所述减速器的输入轴固定连接，所述减速器的输出轴与所述凸轮的所述圆心固定连接。
在上述升降装置的优选技术方案中，所述动力装置是电机。
在上述升降装置的优选技术方案中，一个所述驱动装置配置有两个所述第一连杆，每个所述第一连杆分别配置有一个所述支撑脚。
在上述升降装置的优选技术方案中，所述支撑脚的底部设置有行走轮。
在上述升降装置的优选技术方案中，所述行走轮是万向轮。
在另一方面，本发明还提供了一种洗衣机，包括机体和设置在机体底部的升降装置，所述升降装置是上述优选技术方案中任一项所述的升降装置。
本领域技术人员能够理解的是，在本发明的优选技术方案中，通过驱动装置驱动所述第一连杆，所述第一连杆带动所述支撑脚在竖直方向上移动，从而使所述机体升起或落下。所以本发明的升降装置能够实现洗衣机机体的升起或落下，并且结构简单，使洗衣机的移动更加方便快捷，优化了用户的使用体验。
具体地，支撑脚的底部设置有行走轮，第一连杆的第一端与驱动装置相连接，第一连杆的第二端与行走轮相连接。驱动装置工作时带动第一连杆的第一端上下运动，第一连杆的第一端将动力传给第一连杆的第二端，第一连杆的第二端带动行走轮在竖直方向上移动，从而使机体升起或落下。当机体被升起之后，洗衣机借助行走轮能够被用户轻 松推动；当机体被落下后，洗衣机借助固定底脚能够被牢牢地固定在地面上。从而优化了用户的使用体验。
进一步，驱动装置为电机，行走轮为万向轮。电机通过减速器驱动凸轮转动，转动的凸轮借助第二连杆驱动第一连杆的第一端移动。第一连杆通过枢转端与机体枢转连接，并因此形成杠杆结构，所以随着第一连杆的第一端的移动，第一连杆的第二端绕枢转端向与第一端相同的方向转动，从而带动万向轮在竖直方向上移动，使机体升起或落下。因此，本发明的升降装置相对于现有技术中的液压和气压升降装置，结构更加简单。
附图说明
下面参照附图并结合洗衣机来描述本发明的优选实施方式，附图中：
图1是本发明的洗衣机的侧视图；
图2是本发明的升降装置的第一侧图；
图3是本发明的升降装置的第二侧图；
图4是本发明升降装置中第一连杆的连接关系示意图；
图5是本发明的第一横杆的结构示意图；
图6是本发明的第一横杆的连接关系示意图；
图7是本发明的第二横杆的结构示意图；
图8是本发明的第二横杆的连接关系示意图；
图9是本发明的减速器的主视图；
图10是图9中的减速器的后视图；
图11是活动开关与托轮的结构示意图；
图12是洗衣机上升时电路连接图；
图13是洗衣机下降时电路连接图；
附图标记列表：
1、机体；11、上升按键；12、下降按键；13、固定底脚；2、升降装置；21、横梁；22、电机；23、减速器；24、凸轮；241、偏心凸出轴；25、拉杆；26、第一连杆；261、第一横杆；2611、第一端；2612、第二端；2613、第一端孔；2614、第二端孔；2615、第一中间孔；262、第二横杆；2621、第三端；2622、第四端；2623、第三端孔；2624、第 四端孔；2625、第二中间孔；27、支架；271、第一支架；2711、第一枢转轴；272、第二支架；2721、第二枢转轴；28、万向轮；29、护套；30、活动开关；301、弹性按键；302、第一接线端子；303、第二接线端子；304、第三接线端子；31、托轮；311、第一半圆；312、第二半圆。
具体实施方式
本领域技术人员应当理解的是，本节实施方式仅仅用于解释本发明的技术原理，并非用于限制本发明的保护范围。例如，虽然本节实施方式是结合洗衣机来对本发明的升降装置进行说明的，但是本发明的升降装置还可以应用于其他设备，例如空调、冰箱、保险柜等，本领域技术人员可以根据需要对其作出调整，以便适应具体的应用场合，调整后的技术方案仍将落入本发明的保护范围。
需要说明的是，在本发明的描述中，术语“中心”、“上”、“下”、“左”、“右”、“竖直”、“水平”、“内”、“外”等指示方向或位置关系的术语是基于附图所示的方向或位置关系，这仅仅是为了便于描述，而不是指示或暗示所述装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。此外，术语“第一”、“第二”、“第三”仅用于描述目的，而不能理解为指示或暗示相对重要性。
此外，还需要说明的是，在本发明的描述中，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通。对于本领域技术人员而言，可根据具体情况理解上述术语在本发明中的具体含义。
如图1所示，本发明的洗衣机主要包括机体1和升降装置2。机体1底部设置有或一体成型有固定底脚13和横梁21。机体1上设置有控制升降装置2的动作的上升按键11和下降按键12。通过操作上升按键11能够使升降装置2将机体1从地面顶起，通过操作下降按键12能够使被顶起的机体1下落回地面。本领域技术人员能够理解的是，本发明的升降装置2不仅可以用于洗衣机，还可以被用于其他任何可行的被支撑设备，例如，空调、沙发、保险柜、冰箱等。本领域技术人可根据实际 需要对其进行适当调整，调整之后的技术方案仍将落入本发明的保护范围。
如图2和图3所示，进一步，本发明的升降装置2主要包括电机22、减速器23、第一连杆26和支撑脚(图中未标示)。其中，支撑脚的底部设置有万向轮28，并且支撑脚沿竖直方向可滑动地安装到横梁21上，减速器23固定安装在横梁21上，且减速器23的输入端与电机22相连，减速器23的输出端与第一连杆26的第一端操作连接，第一连杆26的第二端与支撑脚的顶部枢转连接。电机22通过减速器23降低转速后能够驱使第一连杆26的第一端运动，运动的该第一端能够带动第一连杆26的第二端运动，运动的该第二端能够驱使万向轮28在竖直方向上移动，从而使机体1升起或落下。
此外，本领域技术人员还可以根据需要，采用其他任何可行的动力装置来代替电机22，例如气压马达、液压马达。或者，本领域技术人员还可以根据需要，省去减速器23，用气缸或油缸来代替电机22驱动第一连杆26的第一端的运动。
进一步，本领域技术人员能够理解的是，上述的万向轮28，可以被其他任何可行的行走轮替代，例如，固定脚轮。本领域技术人员还能够理解的是，减速器23和万向轮28还可以被直接安装到机体1的底部。更进一步，本领域技术人员还可以根据需要，省去万向轮28的设置，当机体1被升降装置2举升之后，借助其他移动装置对洗衣机进行转移。例如当机体1被升降装置2举升之后，使小型叉车的前叉插到机体1的底部，通过叉车对洗衣机进行转移。
继续参阅图2和图3，本发明的升降装置还包括凸轮24和作为第二连杆的拉杆25。其中凸轮24基圆的圆心与减速器23的输出轴同轴固定，凸轮24远离基圆圆心的端部与拉杆25的第一端枢转连接，拉杆25的第二端与第一连杆26的第一端枢转连接。减速器23运作时，会驱动凸轮24转动，凸轮24能够带动拉杆25上下移动，拉杆25又带动第一连杆26的第一端上下运动，从而促使第一连杆26的第二端带动万向轮28上下移动，实现机体1的升起和落下。
继续参阅图2和图3，横梁21上还设有支架27和护套29。进一步，第一连杆26还包括位于第一端和第二端之间的枢转端，第一连杆26通过该枢转端与支架27枢转连接。枢转连接的第一连杆26与支架 27形成杠杆结构，具体地，第一连杆26的第一端向上运动时，第一连杆26的第二端向下运动；第一连杆26的第一端向下运动时，第一连杆26的第二端向上运动。万向轮28的支撑柱穿过护套29，并与护套29在竖直方向可滑动地连接。
本领域技术人员能够理解的是，横梁21应广义地理解为用来安装相关部件的载体，可以采用其他任何可行的结构来代替，进一步，其可以与机体1的底部固定连接，也可以与机体1的底部为一体结构。
如图4所示，第一连杆26包括第一横杆261和第二横杆262，支架27包括第一支架271和第二支架272。第一横杆261与第一支架271构成第一杠杆结构，第二横杆262与第二支架272构成第二杠杆结构。
如图5和图6所示，第一横杆261的第一端部2611上设有第一端孔2613，第一横杆261的第二端2612上设有第二端孔2614，第一横杆261中间靠近第二端2612部分设有作为枢转端的第一中间孔2615。销轴(图中未示出)穿过第一端孔2613与拉杆25相连接，从而实现第一横杆261与拉杆25的枢转连接。销轴(图中未示出)穿过第二端孔2614与万向轮28支撑柱相连接，从而实现第一横杆261与万向轮28的枢转连接。销轴(图中未示出)穿过第一中间孔2615与第一支架271相连接，从而实现第一横杆261与第一支架271的枢转连接。
如图7和图8所示，第二横杆262的第三端部2621上设有第三端孔2623，第二横杆262的第四端2622上设有第四端孔2624，第二横杆262中间靠近第四端2622部分设有作为枢转端的第二中间孔2625。销轴(图中未示出)穿过第三端孔2623与拉杆25相连接，从而实现第二横杆262与拉杆25的枢转连接。销轴(图中未示出)穿过第四端孔2624与万向轮28支撑柱相连接，从而实现第二横杆262与万向轮28的枢转连接。销轴(图中未示出)穿过第二中间孔2625与第二支架272相连接，从而实现第二横杆262与第二支架271的枢转连接。
再次参阅图5和图6，由于第一横杆261与第一支架271形成杠杆结构，孔2615需为圆孔，且其直径稍大于第一支架271的轴外径。为保证第一横杆261的第二端2612做弧形运动时，万向轮28的支撑柱做竖直运动，第二端孔2614需设为长条形状，该长条形状的长度方向与第一横杆261的长度方向相同。同理如图7和图8所示地，第二横杆262与第二支架272构成第二杠杆结构，第二横杆262的第二中间孔2625也 为圆形，第四端孔2624也为长条形状，具体要求与第一横杆261上的第二端孔2614相同。
如图6和图7所示，为防止两个横杆与拉杆25挤压卡死损坏装置，需要两个横杆上的第一端孔2613和第三端孔2623中的至少一个为长条形状，该长条形状的长度方向与其所在横杆的长度方向相同，本实施例中设置孔第一端2613为长条形，第三端孔2623为圆形。
如图9至图13所示，为了防止在提升和下降洗衣机时出现因凸轮24转动量过大而导致洗衣机不能停留在最高或最低位置，减速器23上设置了活动开关30和托轮31。活动开关30设有弹性按键301和三个接线端子。该三个接线端子分别记做第一接线端子302、第二接线端子303和第三接线端子304。弹性按键301压缩缩回时，活动开关30接通第一接线端子302和第二接线端子303(如图12所示)；弹性按键301伸出时，活动开关30接通第一接线端子302和第三接线端子304(如图13所示)。
需要说明的是，图12和图13中的上升按键11和下降按键12为常开式按键(或常开式开关)，即上升按键11和下降按键12在被按下或被操作时才被闭合。
如图9至图11所示，托轮31与减速器23的输出轴同轴固定，使得托轮31和凸轮24能够同步转动，并且与凸轮24分置于减速器23的两侧。或者，本领域技术人员还可以根据需要，将托轮31和凸轮24设置在一侧。该托轮31由两个不同半径的半圆构成，分别记做第一半圆311和第二半圆312。第一半圆311的半径小于第二半圆312的半径，并且第一半圆311和第二半圆312之间平滑过渡。
本发明的用于洗衣机的升降装置工作原理如下。
需要说明的是，洗衣机在常态下，万向轮28处于缩回状态；偏心凸出轴241处于凸轮24轴线的正下方；弹性按键301与第一半圆311和第二半圆312的过渡区接触；第一接线端子302和第二接线端子303接通。
当上升按键11被按下时，电机22与电源被接通，电机22开始转动。电机22通过减速器23带动凸轮24和托轮31同步转动。随着托轮31的转动，弹性按键301与第二半圆312的外缘滑动接触。转动的凸轮24驱使拉杆25向上移动，向上移动的拉杆25向上拉动第一横杆 261的第一端2611和第二横杆262的第三端2621。随着第一端2611和第三端2621的向上移动，第二端2612和第四端2622向下移动，并因此将万向轮28顶出。当托轮31转动到弹性按键301与第二半圆312相脱离时，弹性按键301伸出活动开关30。第一接线端子302和第二接线端子303断开，第一接线端子302和第三接线端子304连通。此时电机22断电停止转动，偏心凸出轴241处于凸轮24轴线的正上方，万向轮28被顶出的长度最长，机体1被顶起高度最高。此时洗衣机被四个万向轮28支撑，用户推动洗衣机，洗衣机借助该四个万向轮28能够移动。
当下降按键12被按下时，电机22与电源被接通，电机22开始转动。电机22通过减速器23带动凸轮24和托轮31同步转动。随着托轮31的转动，弹性按键301与第一半圆311的外缘滑动接触。转动的凸轮24驱使拉杆25向下移动，向下移动的拉杆25向下驱动第一横杆261的第一端2611和第二横杆262的第三端2621。随着第一端2611和第三端2621的向下移动，第二端2612和第四端2622向上移动，并因此使万向轮28缩回机体1。当托轮31转动到弹性按键301与第一半圆311与第二半圆312的过渡区时，弹性按键301缩回活动开关30。第一接线端子302和第三接线端子304断开，第一接线端子302和第二接线端子303连通。此时电机22断电停止转动，偏心凸出轴241处于凸轮24轴线的正下方，万向轮28缩回机体1内，机体1借助固定底脚13与地面相抵。
需要说明的是，在本发明优选实施方案中，电机22优选地具有断电自锁装置(如电机抱闸装置)，当电机22断电时，电机22也能保持在当前角度，进而能够使万向轮28保持在当前位置。从而使用户能够在洗衣机通电时，使万向轮28被顶出，洗衣机断电之后能够继续推动洗衣机，进而能够保证洗衣机能够借助万向轮28被推到任何没有电源的地方。
综上所述，在本发明的优选实施方案中，电机22通过减速器23驱动凸轮24转动，转动的凸轮24借助第二连杆25驱动第一连杆26的第一端移动，第一连杆26的第一端通过驱动第一连杆26的第二端带动万向轮28在竖直方向上移动，使机体1升起或落下，因此，本发明的升降装置相对于现有技术中的液压和气压升降装置，结构更加简单。
进一步，通过第一连杆26与支架27形成的杠杆结构，使第一连杆26的第二端顶出和收回万向轮28时更加轻松、省力，同时连杆结构简单易造，能够减少生产成本。
再进一步，减速器23上设置有弹性开关30和托轮31，通过该托轮31能控制弹性开关30动作，进而使上升按键11或下降按键12与电源接通。当上升按键11与电源接通并被按下时，升降装置2将机体1顶起，直至机体1被举升到最高位置。此时托轮31转动过半圈使上升按键11与电源断开连接，使下降按键12与电源接通，电机22停止转动。当下降按键12与电源接通并被按下时，升降装置2将机体1放下，直至机体1底部的固定底脚13与地面接触，万向轮28被完全缩回机体1内。此时托轮31转动过半圈使下降按键12与电源断开连接，使上升按键11与电源接通，电机22停止转动。因此，在本发明的优选实施中，减速器23上的弹性开关30和托轮31使得机体1的上升和下降更加可靠，避免了凸轮24转动过量，机体1上升至最高位置时下降。同时用户通过操作上升按键11和下降按键12就可控制升降装置2使机体1上升和下降，操作更加简单，用户的使用体验更好。
至此，已经结合附图所示的优选实施方式描述了本发明的技术方案，但是，本领域技术人员容易理解的是，本发明的保护范围显然不局限于这些具体实施方式。在不偏离本发明的原理的前提下，本领域技术人员可以对相关技术特征作出等同的更改或替换，这些更改或替换之后的技术方案都将落入本发明的保护范围之内。

Claims (10)

  1. 一种升降装置，所述升降装置用于承载被支撑设备，其特征在于，所述升降装置包括驱动装置、第一连杆和支撑脚；
    所述驱动装置设置在所述被支撑设备的底部；
    所述支撑脚沿竖直方向可移动地设置在所述被支撑设备的底部；
    所述第一连杆的第一端与所述驱动装置枢转连接，所述第一连杆的第二端与所述支撑脚枢转连接；
    所述驱动装置能够通过所述第一连杆驱动所述支撑脚在竖直方向上移动，从而使所述被支撑设备升起或落下。
  2. 根据权利要求1所述的升降装置，其特征在于，所述第一连杆包括枢转端，所述枢转端位于所述第一连杆的第一端和所述第一连杆的第二端之间；
    所述第一连杆通过所述枢转端与所述被支撑设备枢转连接，使得当所述驱动装置驱动所述第一连杆的第一端时，所述第一连杆的第二端带动所述支撑脚在竖直方向上移动。
  3. 根据权利要求2所述的升降装置，其特征在于，所述升降装置还包括凸轮，所述凸轮的基圆的圆心与所述驱动装置的输出轴同轴固定；所述凸轮远离所述基圆的圆心的端部与所述第一连杆的第一端枢转连接。
  4. 根据权利要求3所述的升降装置，其特征在于，所述升降装置还包括第二连杆，所述第二连杆的第一端与所述凸轮的所述端部枢转连接，所述第二连杆的第二端与所述第一连杆的第一端枢转连接。
  5. 根据权利要求4所述的升降装置，其特征在于，所述驱动装置包括动力装置和减速器，所述减速器与所述被支撑设备相连接，所述动力装置与所述减速器相连接；
    所述动力装置的输出轴与所述减速器的输入轴固定连接，所述减速器的输出轴与所述凸轮的所述圆心固定连接。
  6. 根据权利要求5所述的升降装置，其特征在于，所述动力装置是电机。
  7. 根据权利要求1至6中任一项所述的升降装置，其特征在于，一个所述驱动装置配置有两个所述第一连杆，每个所述第一连杆分别配置有一个所述支撑脚。
  8. 根据权利要求1至6中任一项所述的升降装置，其特征在于，所述支撑脚的底部设置有行走轮。
  9. 根据权利要求8所述的升降装置，其特征在于，所述行走轮是万向轮。
  10. 一种洗衣机，包括机体和设置在机体底部的升降装置，其特征在于，所述升降装置是权利要求1至9中任一项所述的升降装置。
PCT/CN2018/100695 2017-08-15 2018-08-15 升降装置和包括升降装置的洗衣机 WO2019034090A1 (zh)

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