JP7296455B2 - cleaning equipment - Google Patents

Description

The present invention belongs to the field of laundry, and in particular to washing apparatus.

A conventional pulsator washing machine is provided with a plurality of dewatering holes on the peripheral wall of the inner tub. The inner tub and the outer tub are in communication with each other, and the inner tub serves as a clothing loading area and is used for washing the clothing. In other words, the water that fills between the side walls of the inner tank and the outer tank does not participate in cleaning, and the water inside the inner tank actually participates in cleaning, which wastes a huge amount of water resources. . In addition, if too much water is present between the inner and outer tubs, the concentration of the detergent will be reduced and the cleaning effect will be compromised. In addition, since water flows frequently back and forth between the inner and outer tubs, dirt accumulates in the area between the side walls of the inner and outer tubs as the tub continues to be used. That is, limescale in tap water, loose matter from powdered detergent, cellulose in clothes, organic matter in the human body, and dust and bacteria brought in by clothes very easily stay between the side walls of the inner tank and the outer tank. These molds are propagated by ineffective removal of large amounts of dirt accumulated inside washing machines that have been used for a long time. If such soiling that is not visible to the user is not removed, the bacteria will adhere to the clothing after the next wash and be transferred to the human body, leading to the problem of cross-infection.

Some manufacturers are making improvements in response to this situation. In order to save water resources, many washing machines adopt the non-perforated inner tub method, which separates the inner and outer tubs so that water does not exist in the outer tub and is stored only in the inner tub. ing. In addition, water is led out by opening a drainage hole near the upper end of the side wall of the inner tank or by adopting a water guiding path from top to bottom. As a result, when the washing machine spins water, centrifugal force causes the water to be thrown off the inner wall of the inner tank, and then it moves upward along the inner wall of the inner tank and is discharged directly from the drain hole at the top of the inner tank. or derived through a water conveyance route. By doing this, the water saving effect of the washing machine is improved and the amount of detergent used is reduced. In addition, it is possible to further avoid the situation in which bacteria propagate between the inner tank and the outer tank, causing cross-contamination of clothes.

Although the above structure is an improvement over conventional washing machines, it still has the following drawbacks. First, when draining water, the water is drained from the upper spouting hole only by rotating the inner tank, so the draining time is long. In addition, since the driving device needs to be operated during the draining process, the power consumption is relatively large. Finally, during long-term use, accumulated dirt such as particles of mud and sand is not discharged and accumulates in the inner tank little by little. Excessive accumulation of these particles facilitates the propagation of bacteria, which causes secondary contamination of clothes, and eventually wears out the clothes and the members in the inner tank, such as the sealing member of the pulsator shaft.

In order to solve the above technical problems, the applicant has researched and developed a technique in which a drainage port is provided at the bottom of the inner tank, and a drainage mechanism capable of controlling the opening and closing of the drainage port is provided. Further, a lock mechanism is further provided to define the position of the inner tub so that the drainage mechanism can be engaged with the drainage port to achieve sealing. For example, Patent Document 1 discloses a locking mechanism for an inner tub of a washing machine and a washing machine, in which a first orientation structure is provided on the bottom of the inner tub, a second orientation structure is provided on the bottom of the outer tub, and the second orientation structure is provided. It has an expandable structure. The inner tank is locked when the first positioning structure and the second positioning structure are engaged with each other, and the inner tank is unlocked when the first positioning structure and the second positioning structure are separated from each other. A lock hole is provided in the bottom of the inner tank, and at least an extendable lock shaft is installed in the bottom of the outer tank. When the lock shaft is inserted into the lock hole, the inner tank is locked, and when the lock shaft is removed from the lock hole, the lock of the inner tank is released. During cleaning, the inner bath is locked and no water exists between the inner bath and the outer bath.

Specifically, a lock hole is provided in the bottom of the inner tank, and an extendable lock shaft is used to engage with the lock hole. When the lock shaft extends, the inner tank is locked by the concave-convex fit with the lock hole, and when the lock shaft contracts, the lock of the inner tank is released by coming out of the lock hole.

When the inner tank is locked, the drainage mechanism is used to close the drain port of the inner tank. On the other hand, when the inner tank rotates, the drain mechanism opens the drain port of the inner tank, and the water in the inner tank flows from the drain port into the outer tank and then is discharged from the outer tank. However, in this structure, the locking mechanism and the drainage mechanism are driven separately. In addition, after the lock shaft is first extended and engaged with the lock hole so as to lock the inner tank, the drain mechanism is controlled to seal the drain port of the inner tank. The structure is complicated, and two sets of driving mechanisms must be used to separately drive the locking mechanism and the drain mechanism, which increases production costs. Moreover, the control is complicated, and the demand for control accuracy is high.

In view of the above, the present invention is proposed.

Chinese Patent Application No. 201510057876.4

SUMMARY OF THE INVENTION A technical problem to be solved by the present invention is to provide a washing apparatus which has a simple lock and drain structure, is inexpensive, and is capable of synchronous control, in order to overcome the defects of the prior art.

In order to solve the above technical problems, the basic idea of the technical solution adopted in the present invention is as follows.

The cleaning apparatus includes a cleaning tank, and a drain is provided at the bottom of the cleaning tank. Further, a drainage unit is mounted below the cleaning tank and operably moves closer to or away from the cleaning tank to control the opening and closing of the drainage port; , a lock unit for preventing/releasing the rotation of the washing tank by operably approaching/separating from the washing tank; is synchronously driven to approach/separate from the cleaning tank, and the lock unit is positioned away from the cleaning tank, the minimum distance from the lock unit to the locking position of the cleaning tank is greater than the minimum distance from the drain unit to the drain port. including a smaller drive unit.

Further, the cleaning apparatus includes a water receiving tank, and the drain of the cleaning water tank is located within the water receiving tank.

The drain unit and the lock unit are mounted on the bottom of the water receiving tank and arranged to move up and down to approach/separate from the washing tank.

The water receiving tank is connected to the housing of the cleaning device via a vibration damping unit. By supporting the cleaning tank with the water receiving tank, not only can the cleaning tank be rotatably installed in the housing, but also the cleaning water discharged from the cleaning tank can be collected and sent to the cleaning device through a drain pipe communicating with the water receiving tank. It is also possible to discharge to the outside.

Further, the drain unit includes a valve plug and a valve plug rod for moving the valve plug.

The locking unit includes a locking rod, and the bottom of the washing tub is provided with a locking recess that engages with the upper end of the locking rod.

When the upper end of the lock rod is separated from the lock recess of the washing tank, the minimum distance from the upper end surface of the valve plug to the engagement sealing point with the drain port is greater than the minimum distance to

Furthermore, the upper end of the lock rod is higher than the horizontal plane on which the upper end surface of the valve plug lies.

Further, the locking recess effectively restricts the position of the locking rod to be lower than the horizontal plane where the drain port is sealed.

Further, a drain port of the cleaning tank is provided with an openable and closable sealing structure, and the drain port is normally closed by the sealing structure.

The drainage unit includes a push rod controllably arranged to move the sealing structure upward to open it.

The locking unit includes a locking rod, and the bottom of the washing tub is provided with a locking recess that engages with the upper end of the locking rod.

When the upper end of the lock rod is separated from the lock recess of the washing tank, the minimum distance from the upper end of the pressing rod to the sealing structure is greater than the minimum distance until the upper end of the lock rod and the lock recess are effectively locked. is also big.

Furthermore, the upper end of the locking rod is higher than the upper end of the pressing rod.

Furthermore, the locking recess effectively constrains the position of the locking rod to be lower than the horizontal plane at which the pressing rod is pressed against the sealing structure.

Further, the drain unit and lock unit are operably mounted on the same fixed base and integrated into an integral modular structure.

Furthermore, the fixed base is directly or indirectly attached to the water receiving tank.

Further, the drive unit is a drive motor, and the transmission member is arranged as a transmission structure for converting rotation output from the drive motor into reciprocating linear motion of the drain unit/lock unit.

Preferably, the transmission member includes a transmission pulley and a transmission rod. A transmission pulley is mounted on the drive motor shaft. One end of the transmission rod is eccentrically connected to the transmission pulley and the other end is operably connected to the drain/lock unit.

Alternatively, the transmission member is a screw transmission member.

By using the above technical solutions, the present invention has the following beneficial effects compared with the prior art.

In the cleaning apparatus of the present invention, the lock unit and the drainage unit of the cleaning tank are integrally driven. According to the structure of the present invention, since the washing tank is locked first and then the sealing is realized, the abrasion of the drainage unit due to the rotation of the washing tank, which is caused when the lock unit and the drainage unit are operated at the same time, is avoided. .

1. Since the lock unit and the drainage unit are driven integrally, the structure is simple, which saves production costs and is easy to install. Also, the integrated module structure is easy to mount, and the flow of mounting the two members independently is simplified.

2. The minimum distance from the lock unit to the locking position of the cleaning tank is smaller than the minimum distance from the drain unit to the drain port. Therefore, when the driving unit synchronously outputs power and the locking unit locks the washing tub first, the draining unit still has a certain safety distance with the drain port at the bottom of the washing tub. Therefore, it is possible to prevent the drainage unit from being worn or deformed due to the drainage unit and the lock unit simultaneously hindering the rotation of the cleaning tank.

3. The locking unit and the draining unit adopt a control structure in which the locking operation and the closing operation are completed at intervals by synchronous driving. Therefore, the control becomes simpler and smoother, and the failure rate is reduced.

Specific embodiments of the present invention will be described in more detail below in combination with the drawings.

The drawings are part of the invention and are used for a further understanding of the invention. Also, the schematic embodiments of the invention and their descriptions are used for the interpretation of the invention, but do not unduly limit the invention. It should be understood that the drawings described below are only part of the examples, and those skilled in the art can derive further drawings from these drawings without creative effort.

FIG. 1 is a diagram showing the structure of the cleaning device of the present invention. FIG. 2 is a diagram showing part A of FIG. FIG. 3 is a diagram showing the initial state of the lock unit and the drainage unit of the present invention. FIG. 4 is a diagram showing a lock start state of the lock unit of the present invention. FIG. 5 is a diagram showing a sealed state of the drainage port of the drainage unit of the present invention. FIG. 6 shows another drain sealing structure of the present invention. FIG. 7 is a diagram showing a drain opening state of another drain unit of the present invention.

It should be noted that these drawings and written description are not intended to limit the scope of the inventive concept in any way, but rather to explain the inventive concepts to those skilled in the art with reference to specific embodiments. It is.

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments will be described clearly and concisely in combination with the drawings of the embodiments of the present invention. It should be noted that the following examples are for the purpose of explaining the present invention, and do not limit the scope of the present invention.

In the description of the present invention, terms such as "top", "bottom", "front", "back", "left", "right", "vertical", "inside", "outside", etc. should be explained. The direction or positional relationship indicated by is the direction or positional relationship based on the illustration, and is only for the convenience and simplification of the description of the present invention, and the target device or member is in a specific direction. It does not express or imply that it has and must be configured and operated in a particular direction. As such, it should not be construed as limiting the invention.

In the description of the present invention, the terms "attached", "connected", and "connected" should be interpreted broadly, unless explicitly defined and limited otherwise. For example, it may be a fixed connection, a removable connection, or an integral connection. Moreover, it may be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can interpret the specific meanings of the above terms in the present invention according to specific situations.

As shown in FIGS. 1 to 7, the cleaning apparatus described in the present invention includes a housing (not shown), a cleaning tank 1 rotatably installed in the housing, and a receiving tank 2 supporting the cleaning tank 1. including. A drain port 3 is provided at the bottom of the cleaning tank 1 . During the process of water supply and washing, the drain port 3 is closed and the washing tank 1 becomes a water tank. The washing device further comprises a drain unit 4 , a lock unit 5 and a drive unit 6 . The drainage unit 4 is attached to the bottom of the water receiving tank 2 below the cleaning tank 1 and controls the opening/closing of the drainage port 3 by operably approaching/separating from the cleaning tank 1 . The lock unit 5 is provided at the bottom of the water receiving tank 2 below the cleaning tank 1 and on one side of the drainage unit 4, and can be operably moved toward or away from the cleaning tank 1 to lock the cleaning tank 1. blocking/releasing the rotation of the

The drain unit 4 and the lock unit 5 in the present invention share a drive unit 6 that synchronously drives the drain unit 4 and the lock unit 5 to approach/separate from the washing tank 1 by means of a transmission member 7 . When the lock unit 5 is separated from the cleaning tank 1 , the minimum distance from the lock unit 5 to the locking position of the cleaning tank 1 is smaller than the minimum distance from the drain unit 4 to the drain port 3 . According to this structure, when the driving unit 6 synchronously outputs power and the locking unit 5 enters the effective operating distance range first, the draining unit 4 is still connected to the draining port 3 at the bottom of the cleaning tank 1 for a certain safety. have a distance. Therefore, it is possible to prevent the drainage unit from being worn or deformed due to the drainage unit and the lock unit hindering the rotation of the cleaning tank at the same time.

The water receiving tank is connected to the housing of the cleaning device via a damping unit (not shown). By supporting the cleaning tank with the water receiving tank, not only can the cleaning tank be rotatably installed in the housing, but also the cleaning water discharged from the cleaning tank can be collected and sent to the cleaning device from a drainage unit communicating with the water receiving tank. It is also possible to discharge to the outside. The vibration damping unit may adopt a suspension rod type vibration damping structure in a conventional pulsator washing machine, or adopt a damping type damping structure that is mounted below the water receiving tank and supported upward. may be used, or a combination thereof may be employed.

The water receiving tank 2 may have a tank-like structure or a tray-like structure, or may be composed of a support plate supported below the washing tank and an annular protruding rib installed above the support plate. . Also, an outer tub in a conventional washing machine may be used, or a tub structure (see FIGS. 1 and 7) lower than the upper edge of the washing tub may be employed. As shown in FIG. 1, the drainage unit 4 and the lock unit 5 are provided at the bottom of the water receiving tank 2 . Both of these upper ends are operably inserted through the bottom of the water receiving tank 2 and are installed in the bottom of the water receiving tank 2 in a sealing manner. Also, the lower end is operably inserted into the fixed base 11 . The fixed base 11 is fixedly attached to the bottom of the water receiving tank 2 .

In the cleaning apparatus of the present invention, the drain port at the bottom of the cleaning tank is closed during water supply and cleaning, and the cleaning tank functions as a water tank. During cleaning, the pulsator in the cleaning tank may be controlled to rotate independently, or the pulsator and the cleaning tank may be controlled to rotate individually. When draining water, the drain port at the bottom of the cleaning tank is opened, and the water in the cleaning tank is discharged to the external water receiving tank and then discharged from the drain pipe. During dehydration, the washing tank is driven to rotate at high speed so that the moisture in the clothes is shaken off by centrifugal force and lifted along the peripheral wall of the washing tank. Then, it is shaken out from the dehydration hole in the upper part of the peripheral wall of the cleaning tank 1, or guided from above to the inside of the external water receiving tank 2 by the water guiding path 14 in the peripheral wall of the cleaning tank 1 (see FIG. 7).

As one embodiment of the present invention, as shown in FIGS. 1 and 3-5, the drainage unit 4 described in the present invention includes a valve plug 41 and a valve plug rod 42 for moving the valve plug 41 . The lock unit 5 includes a lock rod 51 , and the bottom of the washing tank 1 is provided with a lock recess 12 that engages with the upper end of the lock rod 51 .

When the upper end of the lock rod 51 is separated from the lock recessed portion 12 of the washing tank 1, the minimum distance from the upper end surface of the valve plug 41 to the engaging and sealing portion with the drain port 3 is the upper end of the lock rod 51. and the minimum distance until the locking recess 12 is effectively locked.

Further, the upper end of the lock rod 51 is higher than the horizontal plane on which the upper end surface of the valve plug 41 exists, and the height difference is H (see FIGS. 3 to 5).

And/or, the locking recess 12 effectively restricts the position of the locking rod 51 to be lower than the horizontal plane where the sealing portion of the drain port 3 exists.

The cleaning device of the present invention seals the drain port 3 with a valve plug 41 . In this structure, the lock unit 5 and the drainage unit 4 are synchronously brought close to the bottom of the cleaning tank during the process of water supply and cleaning. is sealed. In the process of draining and dewatering, the locking unit 5 and the draining unit 4 are synchronously separated from the bottom of the washing tank, so that the washing tank 1 is in a free state and the drain port 3 is opened.

As a further embodiment of the present invention, as shown in FIGS. 6 and 7, the drain outlet 3 of the washing tank described in the present invention is provided with a seal structure 13 that can be opened and closed, and normally the seal structure 13 The drain port 3 is closed. The drainage unit 4 also includes a pressing rod 43 . A push rod is controllably arranged to move the sealing structure 13 upwards and open.

When the upper end of the lock rod 51 is separated from the lock recess 12 of the washing tank 1, the minimum distance from the upper end of the pressing rod 43 to the sealing structure 13 is such that the upper end of the lock rod 51 and the lock recess 12 are effectively locked. greater than the minimum distance to

Furthermore, the upper end of the lock rod 51 is higher than the upper end of the pressing rod 43 .

and/or the locking recess 12 effectively restricts the position of the locking rod 51 to be lower than the horizontal plane where the pressing rod 43 is pressed against the sealing structure 13 .

The cleaning device of the present invention normally closes the drain port 3 by the sealing structure 13, and only during the draining process, the pressing rod 43 lifts the sealing structure 13 to open it for draining. Therefore, in the washing tank 1 of the present invention, the drain port 3 is closed by the sealing structure 13 during the process of water supply and washing. In this process, more washing water flow can be obtained by rotating the washing tank.

As a further embodiment, the lock recess 12 at the bottom of the cleaning tank 1 described in the present invention may be a lock hole or a blocking part provided at the bottom of the cleaning tank 1 as a position regulating recess that blocks the lock rod. Configure. Preferably, said locking holes are provided in a flange 8 at the bottom of the washing tank (see Figure 3).

In one embodiment of the present invention, as shown in FIG. 1, the drainage unit 4 and the locking unit 5 described in the present invention are integrated into an integral structure and operably mounted on the same fixed base 11. .

More preferably, the drainage unit 4 and the lock unit 5 are installed on the fixed base 11 so as to be vertically expandable.

As an embodiment of the invention, the drive unit 6 described in the present invention is a drive motor. The transmission member 7 is arranged as a transmission structure that converts rotation output from the drive motor into reciprocating linear motion of the drain unit 4 /lock unit 5 . Preferably, the drive unit 6 is fixedly attached to the fixed base 11 and integrated with the drainage unit 4, the lock unit 5 and the fixed base 11 to form an integral structure.

More preferably, as shown in FIG. 2, the transmission member 7 includes a transmission pulley 9 and a transmission rod 10, and the transmission pulley 9 is mounted on the drive motor shaft. One end of the transmission rod 10 is eccentrically connected to the transmission pulley 9 and the other end is operably connected to the drain unit 4 /lock unit 5 .

Alternatively, the transmission member 7 is a screw transmission member.

As an alternative of the present invention, the valve plug rod has a hollow drain structure, and the valve plug has a packing structure covering the upper end of the valve plug rod and the periphery of the drain. Also, the lower end of the valve plug rod is connected through a hose to a drain valve (not shown). In this structure, the lock unit and the drainage unit synchronously approach the bottom of the cleaning tank during the process of water supply and cleaning, thereby locking the cleaning tank so that it cannot rotate, and the drain port 3 is sealed. be. In this state, the drain valve communicating with the lower end of the valve plug rod is closed to prevent water from flowing out of the cleaning tank. On the other hand, there are two types of control methods in the drainage process. In the first method, the lock unit 5 and the drainage unit 4 are synchronously separated from the bottom of the cleaning tank, so that the cleaning tank 1 is in a free state and the drain port 3 is opened. The water in the cleaning tank flows into the water receiving tank 2 and is discharged from a drainage structure separately installed in the water receiving tank 2 . Alternatively, the water in the water tank is discharged from the hollow valve plug rod by moving the valve plug rod downward so that the upper end of the valve plug rod is below the inner surface of the bottom of the water tank. In the second method, the lock unit and the drain unit are maintained without changing the state of the water supply and cleaning process, and the drain valve communicating with the lower end of the valve plug rod is opened to drain water from the drain valve. In the dehydration process, the lock unit 5 and the drain unit 4 are synchronously separated from the bottom of the washing tank, so that the washing tank 1 is in a free state and the drain port 3 is opened. The water in the cleaning tank flows into the water receiving tank 2 and is discharged from a drainage structure separately installed in the water receiving tank 2 . Alternatively, the water in the water tank is discharged from the hollow valve plug rod by moving the valve plug rod downward so that the upper end of the valve plug rod becomes below the inner surface of the bottom of the water tank.

As one embodiment of the present invention, as shown in FIGS. 1 and 7, a balance ring 15 is provided at the top of the cleaning tank 1 described in the present invention. The balance ring 15 and the upper end of the cleaning tank 1 are hermetically connected so that the water that rises due to the centrifugal force is not shaken out from the connection point between the cleaning tank 1 and the balance ring 15 and scattered. These sealing methods include a method of sealing the outer wall of the balance ring 15 and the inner peripheral wall of the upper end of the cleaning tank 1, a method of supporting the balance ring 15 on the upper edge of the cleaning tank 1 so as to seal the end face, and the like. , a combination of the two, or a method in which the packing is sandwiched by roll hemming.

The foregoing are merely preferred embodiments of the invention and are not intended to limit the invention in any form. Although the present invention has been disclosed above through preferred embodiments, it is not intended to limit the present invention. Within the scope of the technical solution of the present invention, slight variations or supplements that can be implemented by those skilled in the art using the technical content presented above are regarded as equally modified equivalent embodiments, and any It does not deviate from the content of the technical plan. In addition, any simple modifications, equivalent variations and supplements added to the above embodiments based on the technical essence of the present invention are all within the scope of the scheme of the present invention.

Claims (10)

A cleaning apparatus comprising a cleaning tank and a drain port provided at the bottom of the cleaning tank,
a drainage unit mounted below the cleaning tank for controlling the opening and closing of a drainage port by operably moving toward/away from the cleaning tank;
a lock unit provided below the cleaning tank and on one side of the drainage unit and operably moving closer to or away from the cleaning tank to block/release rotation of the cleaning tank;
a drive unit shared by the drainage unit and the lock unit, the drive unit being synchronously driven by a transmission member to bring the drainage unit and the lock unit closer to or away from the cleaning tank;
the drainage unit includes a valve plug and a valve plug rod for moving the valve plug;
The lock unit includes a lock rod, and the bottom of the washing tank is provided with a lock recess that engages with the upper end of the lock rod,
When the upper end of the lock rod is separated from the lock concave portion of the washing tank, the minimum distance from the upper end surface of the valve plug to the engaging and sealing portion with the drain port is the upper end of the lock rod and the above-mentioned lock rod. the lock recess is larger than the minimum distance until it is effectively locked, and when the lock unit first locks the washing tank, the drain unit has a certain safe distance from the drain port ;
A washing apparatus as claimed in claim 1, wherein, when the drainage unit and the lock unit move together to prevent the rotation of the washing tub, a safety distance prevents the drainage unit from being worn or deformed. a water receiving tank, wherein the outlet of the cleaning tank is located in the water receiving tank;
2. The washing method according to claim 1, wherein the drainage unit and the lock unit are mounted on the bottom of the water receiving tank, and are arranged so as to move up and down to approach/separate from the washing tank. Device. 3. The cleaning apparatus according to claim 2, wherein the upper end of said lock rod is higher than the horizontal plane on which the upper end surface of said valve plug exists. 4. The cleaning device according to claim 1, wherein the lock recess effectively regulates the position of the lock rod so that it is lower than the horizontal plane where the drain port is sealed. A drain port of the cleaning tank is provided with an openable and closable sealing structure, and the drain port is normally closed by the sealing structure,
said drainage unit includes a push rod, said push rod controllably arranged to move upwardly and open said sealing structure;
The lock unit includes a lock rod, and the bottom of the washing tank is provided with a lock recess that engages with the upper end of the lock rod,
When the upper end of the lock rod is separated from the lock recess of the washing tank, the minimum distance from the upper end of the pressing rod to the sealing structure is such that the upper end of the lock rod and the lock recess are effectively locked. 2. The cleaning device of claim 1, wherein the minimum distance to the 6. The cleaning device of claim 5, wherein the upper end of said locking rod is higher than the upper end of said pressing rod. 7. The cleaning device according to claim 5, wherein the lock recess effectively regulates the position of the lock rod to be lower than a horizontal plane where the pressing rod is pressed against the sealing structure. . 2. The cleaning device according to claim 1, wherein said drain unit and said locking unit are operably mounted on the same fixed base and integrated to form an integral modular structure. 2. The driving unit as claimed in claim 1, wherein the driving unit is a driving motor, and the transmission member is arranged as a transmission structure for converting rotation output from the driving motor into reciprocating linear motion of the drain unit/lock unit. washing equipment. The transmission member includes a transmission pulley and a transmission rod, wherein the transmission pulley is mounted on the drive motor shaft, one end of the transmission rod is eccentrically connected to the transmission pulley, and the other end is a drainage unit/lock. operably connected to the unit;
Alternatively, the cleaning device according to claim 9, wherein the transmission member is a screw transmission member.

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