CN111074488B

CN111074488B - Washing machine

Info

Publication number: CN111074488B
Application number: CN201811222292.8A
Authority: CN
Inventors: 熊力宁; 李章京; 蒋元慧; 伍亚
Original assignee: Wuxi Little Swan Electric Co Ltd
Current assignee: Wuxi Little Swan Electric Co Ltd
Priority date: 2018-10-19
Filing date: 2018-10-19
Publication date: 2022-08-02
Anticipated expiration: 2038-10-19
Also published as: CN111074488A

Abstract

The present invention discloses a washing machine, comprising: the rotatable inner barrel is provided with a water outlet; a drainer mounted to the inner tub for opening and closing the drain opening; a blocker switchable between a blocking state and a release state; wherein the stopper blocks rotation of the inner tub and acts on the drain to open the drain opening when in the blocking state, and allows rotation of the inner tub and separation from the drain to close the drain opening when in the releasing state. The washing machine provided by the embodiment of the invention can realize eccentric drainage, thereby having the advantages of low cost and the like.

Description

Washing machine

Technical Field

The invention relates to the technical field of electric appliance manufacturing, in particular to a washing machine.

Background

The traditional pulsator washing machine generally has the problem of washing clothes by sewage, and dirt and germs are difficult to clean no matter a detergent or other cleaning modes are adopted, so that the nonporous inner barrel pulsator washing machine is provided, the washing machine is sealed in an inner barrel in the washing process, no water exists between the inner barrel and the outer barrel, and the problem of washing clothes by sewage is avoided.

However, in the related art, the nonporous inner barrel pulsator washing machine adopts a structure of central drainage of the inner barrel, so that only a specific motor with central drainage can be used, the structure of the motor is complex, the cost is high, and the overall cost of the washing machine is increased.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides a washing machine, which can realize eccentric drainage and has the advantages of low cost and the like.

According to an embodiment of the present invention, there is provided a washing machine including: the rotatable inner barrel is provided with a water outlet; a drainer mounted to the inner tub for opening and closing the drain opening; a blocker switchable between a blocking state and a release state; wherein the stopper blocks rotation of the inner tub and acts on the drain to open the drain opening when in the blocking state, and allows rotation of the inner tub and separation from the drain to close the drain opening when in the releasing state.

According to the washing machine provided by the embodiment of the invention, the drainer linked with the stopper is arranged, so that the drainer can be opened by the stopper, when the inner barrel stops rotating due to the blockage of the stopper, the drainer automatically opens the water outlet for draining water under the action of the stopper, and when the inner barrel resumes rotating, the drainer closes the water outlet, and the inner barrel stops draining water. Therefore, the water outlet can be arranged eccentrically, so that a special motor for central water drainage is not needed, and the cost can be greatly reduced.

According to some embodiments of the present invention, the drain port is provided at a bottom wall of the inner tub and offset from a center of the bottom wall of the inner tub.

According to some specific examples of the present invention, the washing machine further comprises: the driver is in transmission connection with the inner barrel and is used for driving the inner barrel to rotate; and the feedback unit is electrically connected with the driver, and when the stopper is in the blocking state and the stopper blocks the rotation of the inner barrel, the drainer triggers the feedback unit to enable the feedback unit to send a stop signal to the driver.

Further, the drain includes: a support seat mounted to the inner tub and surrounding the drain opening; a rotating shaft rotatably mounted to the inner tub; the drainer is arranged on the rotating shaft; the elastic piece is arranged in the inner barrel and is connected with the rotating shaft; when the stopper is in the blocking state, the stopper acts on the rotating shaft to enable the rotating shaft to drive the drainer to turn over to open the water outlet, the rotating shaft triggers the feedback unit, and when the stopper is in the releasing state, the stopper is separated from the rotating shaft to enable the rotating shaft to drive the drainer to turn over under the elasticity of the elastic piece to close the water outlet.

Furthermore, the water outlet is arranged on the bottom wall of the inner barrel, the support seat penetrates through the water outlet and is provided with a clamping ring positioned above the bottom wall of the inner barrel, a screw cap is matched on the support seat in a threaded mode, and the screw cap is positioned below the bottom wall of the inner barrel and clamps the bottom wall of the inner barrel together with the clamping ring.

Further, a sealing gasket is arranged between the clamping ring and the bottom wall of the inner barrel.

Furthermore, an elastic gasket is arranged between the screw cap and the bottom wall of the inner barrel.

According to some specific examples of the invention, the drainer fits into the support seat when the drainer closes the water outlet, and the drainer is sleeved with a sealing ring for sealing a gap between the drainer and the support seat.

Furthermore, the peripheral surface of the drainer is provided with an annular groove extending along the circumferential direction of the drainer, and the sealing ring is assembled in the annular groove.

According to some specific examples of the present invention, the bottom wall of the inner barrel is provided with a fixed seat and a fitting seat, the fixed seat and the fitting seat are respectively located at two sides of the supporting seat in a radial direction of the inner barrel, and the rotating shaft is rotatably mounted to the fixed seat and the fitting seat.

Further, in the radial direction of the inner barrel, the fixing seat is positioned at the inner side of the supporting seat and the assembling seat is positioned at the outer side of the supporting seat, and the elastic piece is installed on the assembling seat.

Further, the mount includes: the base is arranged on the bottom wall of the inner barrel and is provided with a rotating shaft groove; the pressing plate is detachably arranged on the base, and the pressing plate limits the rotating shaft in the rotating shaft groove.

According to some embodiments of the present invention, the rotating shaft includes a fixed section, a first connecting section, a transmission section, a second connecting section, an assembling section, a third connecting section and a driving section, which are sequentially connected along a length direction thereof, the fixed section and the assembling section are arranged along a first axis, the transmission section and the driving section are arranged along a second axis, and the first axis and the second axis are parallel and spaced apart; the fixing section is rotatably arranged on the fixing seat, the assembling section is rotatably arranged on the assembling seat, the drainer is arranged on the transmission section, and the stopper acts on the driving section when in the blocking state and is separated from the driving section when in the releasing state.

Further, the first, second, and third connection segments are parallel to each other and perpendicular to the first and second axes.

Further, the pivot still includes: a fourth connection section connected with the driving section; and the triggering section is connected with the fourth connecting section, and when the stopper is in the blocking state and the inner barrel is blocked by the stopper to rotate, the triggering section triggers the feedback unit.

Further, the fourth connecting section is perpendicular to the second axis and has an included angle with any one of the first connecting section, the second connecting section and the third connecting section larger than 90 degrees, and the triggering section is parallel to the second axis.

According to some specific examples of the invention, the drainer is provided with a clamping groove, and the transmission section is configured with a bent buckle, and the bent buckle is clamped in the clamping groove.

Furthermore, the drainer is provided with a clamping hook which can pivot and is used for fastening and fixing the bend to the clamping groove.

According to some embodiments of the invention, the stopper has a retractable stopper rod, and a stopper is disposed on the bottom wall of the inner barrel; when the stopper is in the stopping state, the stopping rod extends towards the inner barrel, and the stopping rod is stopped at one side of the stop block along the circumferential direction of the inner barrel and acts on the rotating shaft; when the stopper is in the release state, the stopper rod retracts in the direction far away from the inner barrel, the stopper rod allows the stopper to pass over the stopper rod along the circumferential direction of the inner barrel, and the stopper rod is separated from the rotating shaft.

Furthermore, a buffer groove for accommodating the rotating shaft is arranged on one side of the stop block facing the rotating shaft.

Furthermore, a gap is arranged on one side of the stop block, which faces away from the inner barrel, and the width of the gap is larger than the diameter of the stop rod.

Further, the bottom of the inner barrel is provided with a flange, and the stop block is arranged on the flange.

According to some embodiments of the invention, the washing machine further comprises: the inner barrel is rotatably arranged in the outer barrel, the water outlet is arranged on the bottom wall of the inner barrel, the drainer is arranged on the bottom wall of the inner barrel, and the stopper and the feedback unit are arranged on the bottom wall of the outer barrel.

Further, the height of the outer barrel is smaller than that of the inner barrel.

Further, the feedback unit includes: a switch installed at an outer surface of a bottom wall of the outer tub; a pressing plate installed on an inner surface of a bottom wall of the outer tub; the bottom wall of the outer barrel is provided with an avoiding hole, the sealing shifting block is pressed on the bottom wall of the outer barrel by the pressing sheet and seals the avoiding hole, and the switch is triggered by the avoiding hole to enable the switch to send a stop signal to the driver when the sealing shifting block is acted by the drainer.

According to some embodiments of the invention, the washing machine further comprises: a clutch connected with the inner tub and having a one-way bearing; wherein the stopper cooperates with the one-way bearing to restrict rotation of the inner tub when in the stopped state.

According to some embodiments of the present invention, the inner tub is configured as a non-porous inner tub having no drain holes on a sidewall thereof, and the drain holes are provided on a bottom wall of the inner tub.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural view of a washing machine according to an embodiment of the present invention.

Fig. 2 is an exploded view of a part of a structure of a washing machine according to an embodiment of the present invention.

Fig. 3 is an enlarged view of the area a in fig. 2.

Fig. 4 is a sectional view of a washing machine according to an embodiment of the present invention.

Fig. 5 is an enlarged view of the region B in fig. 4.

Fig. 6 is a partial structural schematic view of a washing machine according to an embodiment of the present invention.

Fig. 7 is an enlarged view of the area C in fig. 6.

Reference numerals:

a washing machine 1,

An inner barrel 100, a water outlet 110, a fixed seat 120, an assembling seat 130, a base 131, a pressure plate 132, a rotating shaft groove 133, a stopper 140, a buffer groove 141, a gap 142, a flange 150, an avoiding hole 160, a,

The drainage device 200, a support seat 210, a clamping ring 211, a nut 212, a sealing gasket 213, an elastic gasket 214, a rotating shaft 220, a first connecting section 222, a transmission section 223, a bent buckle 2231, a second connecting section 224, a third connecting section 226, a driving section 227, a fourth connecting section 228, a triggering section 229, a drainer 230, a sealing ring 231, an annular groove 232, a clamping groove 233, a clamping hook 234, an elastic piece 240, a sealing ring groove, a sealing ring groove, a clamping hook, a sealing ring and a sealing ring, a sealing ring and a sealing ring, a sealing ring and a sealing ring, a sealing ring and a sealing ring, a sealing ring and a sealing ring, a sealing ring and a sealing ring, a sealing,

A stopper 300, a stopper rod 310,

A feedback unit 400, a switch 410, a pressing sheet 420, a sealing shifting block 430,

An outer barrel 500,

A first axis M and a second axis N.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "length", "width", "thickness", "upper", "lower", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in a specific case to those of ordinary skill in the art.

A washing machine 1 according to an embodiment of the present invention, which washing machine 1 may be a pulsator washing machine, is described below with reference to the accompanying drawings.

As shown in fig. 1 to 7, the washing machine 1 according to the embodiment of the present invention includes an inner tub 100, a drain 200, and a stopper 300.

The inner tub 100 is rotatable, and the inner tub 100 is provided with a drain port 110. The drain 200 is mounted to the inner tub 100 for opening and closing the drain port 110. The damper 300 is switchable between a blocking state and a release state.

When the stopper 300 is in the blocking state, the stopper 300 blocks the rotation of the inner tub 100, and the stopper 300 acts on the drain 200, so that the drain 200 opens the drain opening 110, and the inner tub 100 drains water.

When the stopper 300 is in the release state, the stopper 300 allows the inner tub 100 to rotate, and the stopper 300 is separated from the drain 200, so that the drain 200 closes the drain opening 110, and the inner tub 100 stores water.

Based on the above structure, the drain port 110 is provided at the bottom wall of the inner tub 100 and the drain port 110 is offset from the center of the bottom wall of the inner tub 100, in other words, the drain port 110 is eccentrically provided.

According to the washing machine 1 of the embodiment of the present invention, by providing the drain 200 in association with the stopper 300, the drain 200 can be opened by the stopper 300, so that the drain 200 automatically opens the drain opening 110 for draining water by the stopper 300 when the inner tub 100 stops rotating by being stopped by the stopper 300, and the drain 200 closes the drain opening 110 when the inner tub 100 resumes rotating, and the inner tub 100 stops draining water. Accordingly, the drain port 110 can be eccentrically disposed, so that a special motor for central drainage is not required, and the cost can be greatly reduced.

In some embodiments of the present invention, as shown in fig. 1, the washing machine 1 further includes an outer tub 500, the inner tub 100 is rotatably disposed in the outer tub 500, the drain 110 is disposed on a bottom wall of the inner tub 100, the drain 200 is mounted on the bottom wall of the inner tub, and the stopper 300 is mounted on the bottom wall of the outer tub 500, so as to achieve mounting and fixing of the stopper 300.

Further, in order to simplify the structure, reduce the cost, and improve the space utilization, the height of the outer tub 500 is smaller than the height of the inner tub 100, for example, the entire height of the outer tub 500 may be smaller than 1/2 of the entire height of the inner tub 100, thereby realizing a "single tub" structure by greatly reducing the height of the outer tub 500, so that water is more saved in the inner tub 100 during washing.

In order to save water, the inner tub 100 is constructed as a non-porous inner tub having no drain hole on the sidewall, the drain hole 110 is formed on the bottom wall of the inner tub 100, and when the washing machine 1 washes, water is sealed in the inner tub 100 and no water is filled between the outer tub 500 and the inner tub 100.

In some embodiments of the present invention, as shown in fig. 2 to 4, 6 and 7, the washing machine 1 further includes a driver (not shown) and a feedback unit 400.

The driving device is in driving connection with the inner tub 100 for driving the inner tub 100 to rotate, and may be a motor, for example. The feedback unit 400 is installed at the bottom wall of the outer tub 500 and electrically connected with the driver. When the stopper 300 is in the blocking state and the stopper 300 blocks the rotation of the inner tub 100, the drainer 200 triggers the feedback unit 400 to make the feedback unit 400 send a stop signal to the driver, and the driver stops operating after receiving the stop signal, thereby preventing the driver from still operating and being burnt out after the rotation of the inner tub 100 is blocked.

In some specific examples of the present invention, as shown in fig. 2 and 3, the drainer 200 includes a support base 210, a rotation shaft 220, a drainer 230, and an elastic member 240.

The support base 210 is installed at the bottom wall of the inner tub 100 and surrounds the drain opening 110. The rotation shaft 220 is rotatably installed at the inner tub 100. The drainer 230 is mounted to the shaft 220 and is rotated by the shaft 220 to open and close the drain opening 110. The elastic member 240 is installed at the bottom wall of the inner tub 100 and connected to the rotation shaft 220.

When the stopper 300 is in the blocking state, the stopper 300 acts on the rotating shaft 220, the rotating shaft 220 rotates and drives the drainer 230 to turn over to open the drain outlet 110, meanwhile, the rotating shaft 220 triggers the feedback unit 400, and the feedback unit 400 sends a stop signal to the driver to stop driving the inner tub 100 to rotate.

When the stopper 300 is in the release state, the stopper 300 is separated from the rotating shaft 220, the rotating shaft 220 is reset under the elasticity of the elastic member 240 and drives the drainer 230 to turn over to close the drain outlet 110, and the rotating shaft 220 is separated from the feedback unit 400, the arrangement of the elastic member 240 can automatically reset the drainer 230, thereby solving the problem that the inner tub 100 can not be reversely rotated to reset the drainer 230.

Specifically, as shown in fig. 2 to 5, the drain opening 110 is provided at the bottom wall of the inner tub 100, the support base 210 passes through the drain opening 110, the support base 210 has a clamping ring 211 positioned above the bottom wall of the inner tub 100, a screw cap 212 is threadedly engaged with the support base 210, the screw cap 212 is positioned below the bottom wall of the inner tub 100, and the screw cap 212 and the clamping ring 211 clamp the bottom wall of the inner tub 100 together, thereby mounting and fixing the support base 210 to the bottom wall of the inner tub 100.

Further, as shown in fig. 5, a sealing gasket 213 is disposed between the clamping ring 211 and the bottom wall of the inner barrel 100 for sealing a gap between the clamping ring 211 and the bottom wall of the inner barrel 100 to achieve a water sealing effect. An elastic gasket 214 is arranged between the nut 212 and the bottom wall of the inner barrel 100, so that the clamping effect of the nut 212 and the clamping ring 211 can be improved, and the effects of buffering, shock absorption and sealing can be achieved.

In some embodiments of the present invention, as shown in fig. 4 and 5, when the drainer 230 closes the drain opening 110, the drainer 230 fits into the support seat 210, the drainer 230 is sleeved with a sealing ring 231, and the sealing ring 231 is used to seal a gap between an outer circumferential surface of the drainer 230 and an inner circumferential surface of the support seat 210, so as to improve a sealing effect when the drainer 230 closes the drain opening 110.

Specifically, the outer circumferential surface of the drainer 230 is provided with an annular groove 232, the annular groove 232 extends annularly along the circumferential direction of the drainer 230, and the seal ring 231 is tightened in the annular groove 232, thereby fastening the seal ring 231 to the drainer 230 to be turned over with the drainer 230.

In some embodiments of the present invention, as shown in fig. 2-3 and 6-7, the lower surface of the bottom wall of the inner barrel 100 is provided with a fixed seat 120 and a mounting seat 130, the fixed seat 120 and the mounting seat 130 are respectively located at two sides of the supporting seat 210 in the radial direction of the inner barrel 100, and the rotating shaft 220 is rotatably mounted on the fixed seat 120 and the mounting seat 130, so as to realize the rotatable mounting of the rotating shaft 220.

Wherein, in the radial direction of the inner barrel 100, the fixing seat 120 is located at the inner side of the supporting seat 210, and the assembling seat 130 is located at the outer side of the supporting seat 210, and the elastic element 240 may be a torsion spring and is installed at the assembling seat 130.

Specifically, as shown in fig. 3, in order to facilitate the detachment and installation of the rotating shaft 220 and the elastic member 240, the mounting base 130 includes a base 131 and a pressing plate 132. The base 131 is provided on the bottom wall of the inner tub 100, and the base 131 has a rotation shaft groove 133. The pressing plate 132 is detachably mounted on the base 131, the pressing plate 132 limits the rotating shaft 220 in the rotating shaft groove 133 to prevent the rotating shaft 220 from being separated from the rotating shaft groove 133, and the pressing plate 132 also plays a role in fixing the elastic member 240 located in the base 131.

In some embodiments of the present invention, as shown in fig. 3, the rotating shaft 220 includes a fixing section, a first connecting section 222, a transmission section 223, a second connecting section 224, an assembling section, a third connecting section 226 and a driving section 227 which are sequentially connected along a length direction of the rotating shaft 220.

The fixed section and the mounting section are arranged along a first axis M, and the transmission section 223 and the drive section 227 are arranged along a second axis N, the first axis M and the second axis N being parallel and spaced apart. The first, second and third connecting

segments

222, 224 and 226 are parallel to each other and are all perpendicular to the first and second axes M and N.

Wherein the fixed segment is rotatably mounted to the fixed seat 120, and the assembling segment is rotatably mounted to the assembling seat 130, it can be understood that the fixed segment and the assembling segment are hidden in fig. 3 because the fixed segment is mounted in the fixed seat 120 and the assembling segment is mounted in the assembling seat 130. The downcomer 230 is mounted to the drive section 223. When the blocker 300 is in the blocking state, the blocker acts on the driving section 227, the driving section 227 drives the rotating shaft 220 to rotate, and when the blocker 300 is in the releasing state, the blocker is separated from the driving section 227, and the rotating shaft 220 is reset by elasticity of the elastic member 240.

Therefore, when the rotating shaft 220 is used to drive the drainer 230 to turn over, the drainer 230 and the rotating shaft 220 do not rotate coaxially, so that the rotating space of the rotating shaft 220 can be reduced.

In some specific examples of the present invention, as shown in fig. 3, to facilitate the rotating shaft 220 to actuate the feedback unit 400, the rotating shaft 220 further includes a fourth connecting segment 228 and a triggering segment 229. The fourth connecting section 228 is connected to the driving section 227. The trigger segment 229 is connected to the fourth connecting segment 228. When the stopper 300 is in the blocking state and the inner tub 100 is blocked from rotating by the stopper 300, the triggering section 229 activates the feedback unit 400.

Wherein the fourth connecting segment 228 is perpendicular to the second axis N, and an orthographic projection of the fourth connecting segment 228 in a plane orthogonal to the first axis M and the second axis N is at an angle greater than 90 ° to an orthographic projection of any one of the first connecting segment 222, the second connecting segment 224 and the third connecting segment 226. The trigger segment 229 is parallel to the second axis N.

In some embodiments of the present invention, as shown in fig. 2 and 3, the drainer 230 is provided with a clamping groove 233, the transmission section 223 is configured with a bent buckle 2231, the bent buckle 2231 can be formed by bending the transmission section 223 for four times, and the bent buckle 2231 is clamped in the clamping groove 233, so that the connection between the rotating shaft 220 and the drainer 230 is realized, and the drainer 230 can be driven to turn over when the rotating shaft 220 rotates.

Further, the drainer 230 is further provided with a hook 234, the hook 234 is pivotally disposed on the drainer 230 and is used for fastening the bent buckle 2231 to the clamping groove 233, the hook 234 can shield the clamping groove 233, so as to prevent broken wool and cloth from being hung in the clamping groove 233 during drainage, and the bent buckle 2231 can be separated from the clamping groove 233 by pivoting the hook 234, so that the drainer 230 can be detached from the rotating shaft 220.

In some embodiments of the present invention, as shown in fig. 1 to 7, the stopper 300 has a retractable stopper rod 310, and the stopper 140 is provided on the outer surface of the bottom wall of the inner tub 100, for example, the bottom of the inner tub 100 has a flange 150, and the stopper 140 is mounted to the flange 150 by screws or the like.

When the stopper 300 is in the blocking state, the blocking rod 310 protrudes toward the inner tub 100 (i.e., protrudes upward), the blocking rod 310 is stopped at one side of the stopper 140 along the circumferential direction of the inner tub 100, and the blocking rod 310 acts on the rotating shaft 220 to allow the drainer 230 to open the drain opening 110.

When the stopper 300 is in the release state, the stopper rod 310 is retracted away from the inner tub 100 (i.e., retracted downward), the stopper rod 310 allows the stopper 140 to pass over the stopper rod 310 along the circumferential direction of the inner tub 100, and the stopper rod 310 is disengaged from the rotating shaft 220, and the rotating shaft 220 is restored by the elastic force of the elastic member 240 to allow the drainer 230 to close the drain opening 110.

As shown in fig. 3 and 7, a buffer groove 141 for accommodating the driving section 227 is disposed at a side of the stopper 140 facing the rotation shaft 220, and the buffer groove 141 can effectively prevent the rotation shaft 220 from being crushed due to an excessive rotation inertia of the inner tub 100.

Further, as shown in fig. 3, a notch 142 is formed at a side (i.e., a lower side) of the stopper 140 facing away from the inner barrel 100, and a width of the notch 142 in a radial direction of the inner barrel 100 is greater than a diameter of the stopper rod 310, so as to avoid a small probability that the stopper rod 310 just abuts against the stopper 140 when protruding.

In some embodiments of the present invention, as shown in fig. 2-4 and 6-7, the feedback unit 400 includes a switch 410, a pressure plate 420, and a seal dial 430.

The switch 410 is installed at an outer surface of a bottom wall of the outer tub 500. The pressing plate 420 is installed on the inner surface of the bottom wall of the outer tub 500. The bottom wall of the outer tub 500 is provided with an avoiding hole 160, and the sealing shifting block 430 is press-fitted to the bottom wall of the outer tub 500 by the pressing sheet 420 and seals the avoiding hole 160. The seal pusher 430, when acted upon by the trigger segment 229 of the shaft 220, actuates the switch 410 through the relief hole 160, causing the switch 410 to send a stop signal to the damper 300.

In some embodiments of the present invention, the washing machine 1 further includes a clutch (not shown) connected to the inner tub 100 and having a one-way bearing; wherein the stopper 300 cooperates with the one-way bearing to restrict the inner tub 100 from rotating in the blocking state. That is, clockwise and counterclockwise rotational movements of the inner tub 100, one of which is restricted by the stopper 300 and the other of which is restricted by the one-way bearing, thereby achieving overall restriction of the rotation of the inner tub 100. In addition, the one-way bearing can ensure that the inner tub 100 does not rotate reversely due to the elastic force of the elastic member 240 during draining, thereby preventing the drainer 230 from being turned over and restored to close the drain outlet 110 during draining.

The operation of the washing machine 1 according to the embodiment of the present invention will be described below by way of example with reference to the accompanying drawings.

Under normal conditions, the stopper 300 is in a release state, that is, the stopper rod 310 retracts downwards, and under the action of the elastic member 240, the force is transmitted to the drainer 230 through the rotating shaft 220, so that the drainer 230 is in a horizontal sealing state, and the drain opening 110 is closed.

When the water needs to be drained after washing or rinsing is finished, the stopper 300 receives a signal and is switched to a blocking state, the blocking rod 310 extends upwards, meanwhile, the driver receives a signal and rotates the inner tub 100 at a slow speed, when the drainer 200 rotates to the blocking rod 310, the driving section 227 of the rotating shaft 220 contacts with the blocking rod 310, the inner tub 100 overcomes the elasticity of the elastic piece 240 under the acting force of the driver and presses the rotating shaft 220 to rotate, so that the drainer 230 is driven to turn over, and the drain outlet 110 is opened to begin draining.

When the stopper 140 rotates along with the inner tub 100 to be attached to the stopper rod 310, the inner tub 100 is stopped by the stopper, and reaches the maximum displacement position, and at the moment of reaching the maximum displacement position, the trigger section 229 of the rotating shaft 220 toggles the sealing toggle block 430 to press the toggle piece of the switch 410, and sends a stop signal to the driver, and the driver stops driving the inner tub 100 to rotate.

After the water is drained, the blocking rod 310 retracts downwards, the acting force applied to the rotating shaft 220 by the blocking rod 310 is removed, the rotating shaft 220 automatically resets under the action of the elastic element 240, and the drainer 230 rotates to a horizontal sealing state to store water in the next round.

The washing machine 1 according to the embodiment of the present invention has the advantages of high practicability, simple manufacture, low cost, easy assembly, no need of using an expensive central drainage motor and a drainage pipeline with high cost, and suitability for various motors.

Other configurations and operations of the washing machine 1 according to the embodiment of the present invention are known to those skilled in the art and will not be described in detail herein.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A washing machine, characterized by comprising:

the rotatable inner barrel is provided with a water outlet;

the drainer is arranged in the inner barrel and used for opening and closing the water outlet, and comprises a rotating shaft, a drainer and an elastic piece, wherein the rotating shaft is rotatably arranged in the inner barrel, the drainer is arranged on the rotating shaft, and the elastic piece is arranged in the inner barrel and connected with the rotating shaft;

a blocker switchable between a blocking state and a release state;

when the blocker is in the blocking state, the blocker blocks the inner barrel from rotating and acts on the rotating shaft so that the rotating shaft drives the drainer to turn over to open the water outlet, and when the blocker is in the releasing state, the inner barrel is allowed to rotate and is separated from the rotating shaft so that the rotating shaft drives the drainer to turn over under the elasticity of the elastic piece to close the water outlet.

2. The washing machine as claimed in claim 1, wherein the drain port is provided at a bottom wall of the inner tub and is offset from a center of the bottom wall of the inner tub.

3. The washing machine as claimed in claim 2, further comprising:

the driver is in transmission connection with the inner barrel and is used for driving the inner barrel to rotate;

and the feedback unit is electrically connected with the driver, and when the stopper is in the blocking state and the stopper blocks the rotation of the inner barrel, the drainer triggers the feedback unit to enable the feedback unit to send a stop signal to the driver.

4. The washing machine as claimed in claim 3, wherein the drain comprises:

a support seat mounted to the inner tub and surrounding the drain opening;

and when the blocker is in the blocking state, the rotating shaft triggers the feedback unit.

5. The washing machine as claimed in claim 4, wherein the water outlet is provided at the bottom wall of the inner tub, the support seat passes through the water outlet and has a clamping ring above the bottom wall of the inner tub, and a screw cap is threadedly engaged with the support seat, the screw cap being located below the bottom wall of the inner tub and clamping the bottom wall of the inner tub together with the clamping ring.

6. A washing machine as claimed in claim 5 wherein a gasket seal is provided between the clamp ring and the bottom wall of the inner tub.

7. The washing machine as claimed in claim 5, wherein an elastic gasket is provided between the nut cap and the bottom wall of the inner tub.

8. A washing machine as claimed in claim 7 wherein the drainer fits within the support base when the drain is closed, the drainer being fitted with a sealing ring for sealing a gap between the drainer and the support base.

9. A washing machine as claimed in claim 8 wherein the outer peripheral surface of the drainer is provided with an annular groove extending circumferentially thereof, the seal ring being fitted to the annular groove.

10. The washing machine as claimed in claim 9, wherein the bottom wall of the inner tub is provided with a fixing seat and a fitting seat, the fixing seat and the fitting seat are respectively located at both sides of the supporting seat in a radial direction of the inner tub, and the rotation shaft is rotatably installed at the fixing seat and the fitting seat.

11. The washing machine as claimed in claim 10, wherein the fixing seat is located at an inner side of the supporting seat and the fitting seat is located at an outer side of the supporting seat in a radial direction of the inner tub, the elastic member being mounted to the fitting seat.

12. The washing machine as claimed in claim 11, wherein the fitting seat comprises:

the base is arranged on the bottom wall of the inner barrel and is provided with a rotating shaft groove;

the pressing plate is detachably arranged on the base, and the pressing plate limits the rotating shaft in the rotating shaft groove.

13. The washing machine as claimed in claim 12, wherein the rotation shaft includes a fixed section, a first connection section, a transmission section, a second connection section, an assembly section, a third connection section and a driving section which are connected in sequence along a length direction thereof, the fixed section and the assembly section are disposed along a first axis, the transmission section and the driving section are disposed along a second axis, and the first axis and the second axis are parallel and spaced apart;

the fixing section is rotatably arranged on the fixing seat, the assembling section is rotatably arranged on the assembling seat, the drainer is arranged on the transmission section, and the stopper acts on the driving section when in the blocking state and is separated from the driving section when in the releasing state.

14. The washing machine as claimed in claim 13, wherein the first, second and third connection sections are parallel to each other and perpendicular to the first and second axes.

15. The washing machine as claimed in claim 13, wherein the rotation shaft further comprises:

a fourth connection section connected with the driving section;

and the triggering section is connected with the fourth connecting section, and when the stopper is in the blocking state and the inner barrel is blocked by the stopper to rotate, the triggering section triggers the feedback unit.

16. A washing machine as claimed in claim 15 wherein the fourth connecting section is perpendicular to the second axis and includes an angle of greater than 90 ° with any of the first, second and third connecting sections, the trigger section being parallel to the second axis.

17. A washing machine as claimed in claim 16 wherein the downer is provided with a catch, the drive section being configured with a bent buckle which snaps into the catch.

18. A washing machine as claimed in claim 17 wherein the drainer is provided with a catch which is pivotable and which serves to secure the clasp to the catch.

19. The washing machine as claimed in claim 18, wherein the stopper has a retractable stopper rod, and a stopper is provided at a bottom wall of the inner tub;

when the stopper is in the stopping state, the stopping rod extends towards the inner barrel, and the stopping rod is stopped at one side of the stop block along the circumferential direction of the inner barrel and acts on the rotating shaft;

when the stopper is in the release state, the stopper rod retracts in the direction far away from the inner barrel, the stopper rod allows the stopper to pass over the stopper rod along the circumferential direction of the inner barrel, and the stopper rod is separated from the rotating shaft.

20. A washing machine as claimed in claim 19, wherein a buffer groove for receiving the rotation shaft is provided at a side of the stopper facing the rotation shaft.

21. The washing machine as claimed in claim 19, wherein a notch is formed at a side of the stopper facing away from the inner tub, and the width of the notch is greater than the diameter of the stopper rod.

22. The washing machine as claimed in claim 19, wherein the inner tub has a flange at a bottom thereof, and the stopper is mounted to the flange.

23. The washing machine as claimed in claim 22, further comprising:

the inner barrel is rotatably arranged in the outer barrel, the water outlet is arranged on the bottom wall of the inner barrel, the drainer is arranged on the bottom wall of the inner barrel, and the stopper and the feedback unit are arranged on the bottom wall of the outer barrel.

24. The washing machine as claimed in claim 23, wherein the outer tub has a height smaller than that of the inner tub.

25. The washing machine as claimed in claim 23, wherein the feedback unit comprises:

a switch installed at an outer surface of a bottom wall of the outer tub;

a pressing plate installed on an inner surface of a bottom wall of the outer tub;

the bottom wall of the outer barrel is provided with an avoiding hole, the sealing shifting block is pressed on the bottom wall of the outer barrel by the pressing sheet and seals the avoiding hole, and the switch is triggered by the avoiding hole to enable the switch to send a stop signal to the driver when the sealing shifting block is acted by the drainer.

26. A washing machine as claimed in any one of claims 1 to 25, further comprising:

a clutch connected with the inner tub and having a one-way bearing;

wherein the stopper cooperates with the one-way bearing to restrict the inner tub from rotating in the blocking state.

27. The washing machine as claimed in claim 26, wherein the inner tub is constructed as a non-porous inner tub having no drain holes on a sidewall thereof, and the drain holes are provided on a bottom wall of the inner tub.