Partial foam washing device and washing machine

Abstract

In the partial foam washing device and washing machine, the partial foam washing device includes a casing (1) having a storage cavity (10), a foam washing assembly (2) connected to the casing (1) and movable relative to the casing (1), used to supply foam detergent at least during partial washing, and having a storage position and a washing position relative to the casing (1), and a signal transmission unit that transmits a signal to the partial foam washing device when the foam washing assembly (2) moves to a predetermined position. The signal transmission unit reflects the position information of the foam washing assembly (2) and can reliably guarantee the opening or closing of the foam washing assembly (2) to the predetermined position. In addition, the transmission assembly (3) realizes the switching of the foam washing assembly (2) between the washing position and the storage position, thereby reducing the space occupied by the foam washing assembly (2) and also protecting the foam washing assembly (2).

Description

Technical Field

[0001] The present invention belongs to the technical field of clothing treatment, and specifically relates to a partial foam cleaning device and a washing machine.

Background Art

[0002] A washing machine is a device that cleans laundry with mechanical force generated by electricity. In the case of clothing such as shirts, generally, the dirt on the collar and cuffs is more severe than other parts, but conventional washing machines are inferior in the cleaning effect on some parts such as the collar and cuffs of clothing during the cleaning process.

[0003] In the prior art, it is often necessary to separately add ultrasonic cleaning to the washing machine to achieve the purpose.

[0004] For example, Patent Document 1 discloses a partial cleaning structure for clothing and a washing machine. The partial cleaning structure for clothing is removably installed on the panel base of the washing machine and connected to the water supply path / detergent case of the washing machine. The partial cleaning structure for clothing includes a pressing plate and a support plate. The pressing plate includes an ultrasonic transducer, and the support plate includes a water supply chamber. The shape of the pressing plate corresponds to the support plate. When strongly pressed in the direction of the support plate, a slit for sandwiching the cleaning target part of the clothing is formed between them, so that the clothing is sandwiched and the cleaning target part is ultrasonically cleaned.

[0005] The above solution solves the problem of the washing machine that some parts with severe dirt cannot be cleaned to a certain extent, but it is necessary to detach and attach the partial cleaning structure of the clothing according to the cleaning needs, which is difficult for users to use.

[0006] Patent Document 2 discloses a washing machine having a partial pre-washing function. The washing machine includes an ultrasonic cleaning device. The washing machine has an accommodation space for accommodating the ultrasonic cleaning device. The ultrasonic cleaning device is provided in the accommodation space so as to be retractable / retractable.

[0007] While the above solution addresses to some extent the washing machine's problem of being unable to clean heavily soiled areas, installing an ultrasonic cleaner separately would undoubtedly increase the cost of the washing machine and reduce its market competitiveness. Furthermore, it is difficult to guarantee that the ultrasonic cleaner will not come into contact with the surrounding space once it has entered, which could lead to unexpected activation of the ultrasonic cleaner.

[0008] In view of the above, the present invention is proposed. [Prior art documents] [Patent Documents]

[0009] [Patent Document 1] Specification of Chinese Patent Application No. 2017101131757 [Patent Document 2] Chinese Patent Application No. 201810509321.2 Specification [Overview of the project] [Problems that the invention aims to solve]

[0010] The technical problem that this invention aims to solve is to provide a partial foam cleaning device capable of transmitting positional information of a foam cleaning assembly, thereby reliably ensuring the opening or closing of the foam cleaning assembly to a predetermined position, in order to eliminate the defects of the prior art. [Means for solving the problem]

[0011] To solve the above technical problems, the partial foam cleaning apparatus provided in the first aspect of the present invention includes a casing, a foam cleaning assembly connected to the casing and movable relative to the casing, used to supply foamy detergent at least during partial cleaning, and a signal transmission unit that transmits a signal to the partial foam cleaning apparatus when the foam cleaning assembly moves to a predetermined position.

[0012] By using the above method, it becomes possible to reliably ensure that the foam cleaning assembly is opened or closed to a predetermined position, taking into account the positional information of the foam cleaning assembly.

[0013] Furthermore, the signal transmission unit includes a microswitch, and the transmitted signal includes an electrical signal.

[0014] The microswitch is electrically connected to the foam cleaning assembly and can control the open / closed state of the foam cleaning assembly's circuitry based on the foam cleaning assembly's location.

[0015] By using the above method, the foam cleaning assembly remains energized when its circuit is opened, which can easily lead to the foam cleaning assembly being accidentally activated. This method also replaces the conventional method, which requires the user to manually switch the circuit's open / closed state, thus simplifying the user's operation.

[0016] Furthermore, the casing has a housing cavity.

[0017] The foam cleaning assembly has a housing position and a cleaning position relative to the casing. In the housing position, the foam cleaning assembly is housed within the housing cavity of the casing, and in the cleaning position, the foam cleaning assembly is located outside the housing cavity of the casing.

[0018] The microswitch opens the circuit when the foam cleaning assembly is in the cleaning position and closes the circuit when the foam cleaning assembly is in the storage position.

[0019] By using the above method, it becomes possible to prevent situations where the foam cleaning assembly is unexpectedly activated when it is in its housing position because the circuit is open, causing foamy detergent to be pushed out, which not only affects the progress of cleaning but also contaminates the partial foam cleaning device itself and its environment.

[0020] Furthermore, the microswitch is provided on the casing and / or the bubble cleaning assembly. When the bubble cleaning assembly moves to the cleaning position and / or the storage position, the microswitch is triggered to control the circuit of the bubble cleaning assembly to be turned on or off.

[0021] Alternatively, the microswitch includes a fixed contact provided on the casing and a movable contact provided on the bubble cleaning assembly corresponding to the position of the fixed contact. When the bubble cleaning assembly moves until the movable contact contacts the fixed contact, it controls the circuit of the bubble cleaning assembly to be cut off or turned on.

[0022] Furthermore, the microswitch is provided in the accommodation cavity.

[0023] Preferably, the fixed contact is provided on the inner wall of the accommodation cavity of the casing, and the movable contact is provided on the part of the bubble cleaning assembly located in the accommodation cavity.

[0024] By using the above solution, while facilitating the contact and separation of the two contacts of the microswitch, the function of protecting the microswitch can also be exerted.

[0025] Furthermore, a bottom base is connected to the bottom of the bubble cleaning assembly. By reciprocating, the bottom base switches the bubble cleaning assembly between the storage position and the cleaning position.

[0026] The movable contact of the microswitch is provided on the bottom base.

[0027] By using the above solution, the contact between the bubble cleaning assembly and the casing can be reduced, so the collision or wear of the bubble cleaning assembly is prevented, and the function of protecting the bubble cleaning assembly is achieved.

[0028] Furthermore, one end of the casing on the opening side is designated as the front end of the casing, and the other end that is separated from the opening of the casing is designated as the rear end of the casing. Also, of the foam cleaning assembly, one end facing the front end of the casing is designated as the front end of the foam cleaning assembly, and the other end facing the rear end of the casing is designated as the rear end of the foam cleaning assembly.

[0029] The fixed contact and movable contact of the microswitch are provided at the front of the casing and the rear of the foam cleaning assembly, respectively. The microswitch is an open switch. When the foam cleaning assembly is in the cleaning position, the fixed contact and the movable contact come into contact, and the circuit of the foam cleaning assembly opens.

[0030] And / or, the fixed contact and movable contact of the microswitch are provided at the rear of the casing and the foam cleaning assembly, respectively. The microswitch is a shut-off switch. When the foam cleaning assembly is in the housing position, the fixed contact and the movable contact come into contact, shutting off the circuit of the foam cleaning assembly.

[0031] Furthermore, after the foam cleaning assembly receives a relevant signal, it includes a switch unit used to control the foam cleaning assembly to start up and supply foamy detergent, and to control the foam cleaning assembly to stop supplying foamy detergent.

[0032] Preferably, the switch section includes a mechanical knob and / or a sensing unit.

[0033] By using the above method, the foam cleaning assembly will only be activated when the circuit is open and the switch is turned on, which is equivalent to having at least a double switch on the foam cleaning assembly. This reduces the probability of the foam cleaning assembly being triggered unintentionally.

[0034] Furthermore, the foam cleaning assembly includes a water discharge unit for supplying cleaning water during partial cleaning and a foam generating unit for supplying foamy detergent during partial cleaning.

[0035] One switch unit is provided and is used to control the on / off state of the water discharge unit and the foam generation unit.

[0036] Alternatively, two of the aforementioned switch units are provided, each used to control the on / off state of the water discharge unit and the foam generation unit, respectively.

[0037] Furthermore, a housing is provided above the foam generating unit, and the switch is located in the housing.

[0038] Preferably, the switch portion is provided on the outer wall of the housing.

[0039] By using the above method, the housing provides protection for the foam generating unit. Furthermore, by placing the switch in the housing, contact with the foam generating unit by the user is reduced, thus providing even greater protection for the foam generating unit.

[0040] In a second aspect, the present invention provides another partial foam cleaning device that reduces the occupied space by being switchable between a cleaning position and a housing position. The partial foam cleaning device includes a casing having a housing cavity; a foam cleaning assembly having a housing position and a cleaning position relative to the casing, which is housed within the housing cavity of the casing in the housing position and located outside the housing cavity of the casing in the cleaning position; and a transmission assembly connected to the casing and the foam cleaning assembly, which transmits power between the casing and the foam cleaning assembly to move the foam cleaning assembly between the housing position and the cleaning position.

[0041] By using the above method, it becomes easier to house the foam cleaning assembly and move the foam cleaning assembly to the cleaning position for partial cleaning of the object to be cleaned, making it easier for the user to operate and use.

[0042] Furthermore, the transmission assembly includes a first meshing unit connected to the casing and a second meshing unit connected to the foam cleaning assembly, which meshes with and connects to the first meshing unit.

[0043] The second meshing unit, in cooperation with the first meshing unit, enables the foam cleaning assembly to move between the housing position and the cleaning position.

[0044] Furthermore, the second engaging unit includes a pull tab that is connected to the foam cleaning assembly, and the second engaging unit is provided on the pull tab.

[0045] The second meshing unit is moved by pushing and pulling the pull tab. The first meshing unit works in conjunction with the second meshing unit to guide the movement of the foam cleaning assembly between the housing position and the cleaning position.

[0046] Alternatively, the meshing assembly further includes a drive unit connected to the first meshing unit and / or the second meshing unit to move the first meshing unit and / or the second meshing unit. The first meshing unit works in conjunction with the second meshing unit to guide the movement of the foam cleaning assembly between the housing position and the cleaning position.

[0047] By using the above method, the foam cleaning assembly can be configured as either an automatically controlled or manually controlled structure, as needed.

[0048] Furthermore, the first meshing unit includes a gear provided in the casing.

[0049] The second meshing unit includes a rack that meshes with and connects to the gear. The rack is connected to and moves together with the foam cleaning assembly.

[0050] Using the above method, the gears and racks mesh and connect, enabling power transmission between the foam cleaning assembly and the casing. This ensures a secure connection between the foam cleaning assembly and the casing, while also converting the rotation of the gears into the linear motion of the racks, thereby causing the foam cleaning assembly to move in a linear fashion.

[0051] Furthermore, the handle portion includes a bottom base. The bottom base is provided below the foam cleaning assembly, and a perforated portion is provided in the part corresponding to the foam cleaning assembly to allow the water flow of the foam cleaning assembly to pass through.

[0052] The rack is provided on at least one side wall of the bottom base.

[0053] The gear is provided within the housing cavity and is located on the same side as the rack, corresponding to its position.

[0054] Furthermore, the radial direction of the gear is aligned with the vertical direction of the housing cavity.

[0055] The rack is located above and / or below the gear and is connected to the gear by meshing with it in a vertical direction.

[0056] By using the above method, the space occupied by the transmission assembly is reduced, making the overall structure of the partial foam cleaning device more compact.

[0057] Furthermore, two racks are provided on one side of the bottom base. The two racks are arranged parallel to each other, and their teeth face each other.

[0058] There are at least two gears provided on that side of the housing cavity, positioned between the two racks and connected to each of the two racks.

[0059] By using the above method, the stability of the partial foam cleaning device during its movement process is improved.

[0060] Furthermore, the drive unit is provided in the casing and connected to a gear, which is used to rotate the gear. This gear is a drive wheel. The drive wheel is connected to a rack.

[0061] Two of these gears are provided; the other gear is connected to the drive wheel by meshing with it, and also serves as a driven wheel connected to the other rack.

[0062] Alternatively, three gears may be provided, with the remaining two gears each connected to another rack to form a positioning wheel. The drive wheel and positioning wheel, in cooperation with the two racks, respectively, play a role in determining the direction of motion of the foam cleaning assembly.

[0063] Preferably, there is a distance between the two positioning wheels.

[0064] By using the above method, the drive unit can achieve automatic control of the foam cleaning assembly. Furthermore, by providing two positioning wheels, smooth movement of the foam cleaning assembly in its direction of motion can be ensured, preventing tilting and improving reliability.

[0065] Furthermore, the distance between the two racks is the minimum distance that can accommodate the drive wheel and the positioning wheel.

[0066] By using the above method, the foam cleaning assembly can obtain sufficient power for movement with minimal driving force. This results in savings of electrical energy, reduced equipment damage, and an extended service life for the entire foam cleaning assembly.

[0067] In a third aspect, the present invention provides a washing machine equipped with the above-described partial foam washing device. [Effects of the Invention]

[0068] By employing the above technical solution, the present invention has the following beneficial effects compared to the prior art.

[0069] 1. The signal transmission unit of the present invention reflects the position information of the foam cleaning assembly and reliably ensures that the foam cleaning assembly is opened or closed to a predetermined position.

[0070] 2. The microswitch of the present invention can control the open / closed state of the foam cleaning assembly's circuit based on its location, instead of manually opening the foam cleaning assembly's circuit. This allows for energy savings while reducing the probability of accidental activation of the foam cleaning assembly. Furthermore, it eliminates the user's need to manually open the circuit, making it easier for the user to operate.

[0071] 3. The foam cleaning assembly of the present invention is convenient for partial cleaning of objects because it is reliably guaranteed that the circuit of the foam cleaning assembly is open when it is in the cleaning position. Furthermore, it is possible to prevent situations in which the foam cleaning assembly is unexpectedly activated when it is in the housing position because the circuit is open, resulting in foamy detergent being pushed out, which not only hinders the progress of cleaning but also contaminates the partial foam cleaning device itself and its environment.

[0072] 4. The present invention further includes a switch unit that controls the activation of the foam cleaning assembly. The foam cleaning assembly is activated only when the switch unit is turned on while the circuit is open. This is equivalent to providing at least a double switch on the foam cleaning assembly, thus reducing the probability of the foam cleaning assembly being triggered unintentionally.

[0073] 5. The transmission assembly of the present invention enables switching of the foam washing assembly between the washing position and the storage position. Therefore, the washing machine's space is not occupied during the process of the washing machine executing the washing program, and the washing function of the washing machine is not hindered. Furthermore, it is possible to protect the foam washing assembly after it has been stored. In addition, the process of storing the foam washing assembly is simplified, making it easy for the user to operate and use.

[0074] 6. The gear and rack of the present invention are connected by meshing, enabling power transmission between the foam cleaning assembly and the casing. This ensures the connection effect between the foam cleaning assembly and the casing, while also converting the rotation of the gear into the linear motion of the rack, thereby enabling the foam cleaning assembly to move in a linear fashion.

[0075] 7. Two racks are provided on one side of the handle. In addition, there are at least two gears on the corresponding side of the housing cavity, which are located between the two racks and are connected to each of the two racks. This improves the stability of the partial foam cleaning device during its movement.

[0076] 8. The drive unit enables automatic control of the foam cleaning assembly. Furthermore, the provision of two positioning wheels ensures stability and smoothness in the direction of motion of the foam cleaning assembly, preventing tilting and improving reliability. The drive wheel transmits driving force to one rack and one driven wheel, and further transmits it to the other rack via the driven wheel. In other words, the driving force of the drive wheel can be transmitted to two racks. This allows the foam cleaning assembly to obtain sufficient driving force, resulting in energy savings.

[0077] The specific embodiments of the present invention will be described in more detail below, with reference to the drawings.

[0078] The drawings are used as part of the present invention and for a further understanding of the present invention. Furthermore, the schematic embodiments and descriptions of the present invention are used for interpretation of the present invention, but do not unduly limit it. Needless to say, the drawings described below are only a part of the embodiments, and those skilled in the art can obtain further drawings from these drawings without requiring any creative work. [Brief explanation of the drawing]

[0079] [Figure 1] Figure 1 is a schematic diagram of the partial foam cleaning device in the first embodiment of the present invention. [Figure 2] Figure 2 is a schematic diagram of the partial foam cleaning device in the second embodiment of the present invention. [Figure 3] Figure 3 is a schematic diagram of the partial foam cleaning device in the third embodiment of the present invention. [Figure 4] Figure 4 is a schematic diagram of the partial foam cleaning device in the fourth embodiment of the present invention. [Figure 5] Figure 5 is a schematic diagram of the partial foam cleaning device of the present invention when it is positioned in the cleaning position. [Figure 6] Figure 6 is a schematic diagram showing the partial foam cleaning device in one embodiment of the present invention when it is positioned at the cleaning location. [Figure 7] Figure 7 is a schematic diagram showing the partial foam cleaning device in another embodiment of the present invention when it is positioned at the cleaning location. [Figure 8] Figure 8 is a schematic diagram showing the partial foam cleaning device of the present invention in its housing position. [Figure 9] Figure 9 is a schematic diagram of a part of the structure of the partial foam cleaning device according to the present invention. [Modes for carrying out the invention]

[0080] It should be noted that these drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to explain the concept of the present invention to those skilled in the art by referring to specific embodiments.

[0081] To clarify the purpose, technical solution, and advantages of the embodiments of the present invention, the technical solution of the embodiments will be described clearly and concisely below, with reference to the drawings of the embodiments. The following embodiments are for illustrative purposes only and do not limit the scope of the present invention.

[0082] In describing the present invention, directions or positional relationships indicated by terms such as "up," "down," "front," "back," "left," "right," "vertical," "inside," and "outside" are directions or positional relationships based on the illustrations and are merely for the convenience and simplification of the description of the present invention. They do not explicitly or implicitly suggest that the device or component in question has a specific direction or must be configured and operated in a specific direction. Therefore, they should not be interpreted as limiting the present invention.

[0083] In describing this invention, unless otherwise explicitly defined and limited, the terms “attach,” “connect,” and “connect” should be interpreted broadly. For example, they may be fixed connections, removable connections, or integral connections. They may also be mechanical or electrical connections. Furthermore, they may be direct connections or indirect connections via an intermediate medium. Those skilled in the art will be able to interpret the specific meanings of these terms in this invention according to the specific circumstances.

[0084] As shown in Figures 1 to 9, the present invention provides a partial foam cleaning device. The partial foam cleaning device includes a casing 1 having a housing cavity, a foam cleaning assembly 2 connected to the casing 1 and movable relative to the casing 1, used to supply foamy detergent at least during partial cleaning, and a signal transmission unit that transmits a signal to the partial foam cleaning device when the foam cleaning assembly 2 moves to a predetermined position.

[0085] The signal transmission unit includes a microswitch 6, and the signal transmitted includes an electrical signal. The microswitch 6 is electrically connected to the foam cleaning assembly 2 and can control the open / closed state of the circuit of the foam cleaning assembly 2 based on the location of the foam cleaning assembly 2.

[0086] Naturally, the microswitch 6 may be in communication with the foam cleaning assembly 2. When the foam cleaning assembly 2 reaches a predetermined position, the microswitch 6 is triggered and transmits the location of the foam cleaning assembly 2 to the partial foam cleaning device, thereby ensuring that the foam cleaning assembly 2 reaches the predetermined position. When the foam cleaning assembly 2 moves to the first predetermined position, the foam cleaning assembly 2 becomes inoperable. Also, if the foam cleaning assembly 2 is not located at the first predetermined position, and / or is located at the second predetermined position, the foam cleaning assembly 2 becomes inoperable.

[0087] The microswitch 6 of the present invention can control the open / closed state of the foam cleaning assembly 2's circuit based on its location, instead of manually opening the foam cleaning assembly 2's circuit. This saves energy consumption while reducing the probability of accidental activation of the foam cleaning assembly 2. Furthermore, it eliminates the user's need to manually open the circuit, making it easier for the user to operate.

[0088] The microswitch 6 may be manually controlled by the user. When the foam cleaning assembly 2 moves to a first predetermined position, the user can manually trigger the microswitch 6 to transmit the position information to the partial foam cleaning device or to interrupt the circuit, thereby making the foam cleaning assembly 2 unstartable. If it is necessary to change the position of the foam cleaning assembly 2, the user can trigger the microswitch 6 again to transmit information to the partial foam cleaning device that the foam cleaning assembly 2 is no longer in the first predetermined position, or to open the circuit, thereby making the foam cleaning assembly 2 usable. Alternatively, when the foam cleaning assembly 2 moves in a predetermined direction and reaches a second predetermined position, the user can trigger the microswitch 6 to transmit information to the partial foam cleaning device that the foam cleaning assembly 2 is now in the second predetermined position, or to open the circuit, thereby making the foam cleaning assembly 2 usable.

[0089] The casing 1 has a housing cavity 10. The foam cleaning assembly 2 has a housing position and a cleaning position relative to the casing 1. In the housing position, the foam cleaning assembly 2 is housed within the housing cavity 10 of the casing 1. In the cleaning position, the foam cleaning assembly 2 is located outside the housing cavity 10 of the casing 1. The microswitch 6 opens the circuit when the foam cleaning assembly 2 is in the cleaning position and closes the circuit when the foam cleaning assembly 2 is in the housing position.

[0090] The storage position is the first predetermined position, and the cleaning position is the second predetermined position.

[0091] In this solution, it is reliably guaranteed that the circuit of the foam cleaning assembly 2 is open when the foam cleaning assembly 2 is in the cleaning position, making it convenient for partial cleaning of the object to be cleaned. Furthermore, it is possible to prevent situations where the foam cleaning assembly 2 is unexpectedly activated when the circuit is open while it is in the housing position, resulting in the dislodgement of foamy detergent, which not only hinders the progress of cleaning but also contaminates the partial foam cleaning device itself and its environment.

[0092] Furthermore, the microswitch 6 is provided in the casing 1 and / or the foam cleaning assembly 2. When the foam cleaning assembly 2 moves to the cleaning position and / or the housing position, the microswitch 6 is triggered and controls the opening or closing of the circuit of the foam cleaning assembly 2.

[0093] As one implementation, as shown in Figure 1, the microswitch 6 is an open switch and is provided in the casing 1. One end of the casing 1 closer to the opening is the front end, and the microswitch 6 is provided in the front part of the casing 1. Preferably, the microswitch 6 is provided on the front wall of the housing cavity 10. When the foam cleaning assembly 2 moves forward to the cleaning position, it collides with or contacts the microswitch 6. This activates the microswitch 6 and opens the circuit of the foam cleaning assembly 2. Conversely, when the foam cleaning assembly 2 moves backward from the cleaning position, that is, when the foam cleaning assembly 2 moves toward the housing position, the foam cleaning assembly 2 is disconnected from contact with the microswitch 6. This stops the microswitch 6 and shuts off the circuit of the foam cleaning assembly 2.

[0094] As an alternative to the above plan, as shown in Figure 2, the microswitch 6 is a cutoff switch and is located at the rear of the casing 1. Preferably, the microswitch 6 is located on the rear wall of the housing cavity 10. When the foam cleaning assembly 2 is in the housing position, it collides with or contacts the microswitch 6. This activates the microswitch 6, and the foam cleaning assembly 2 enters a cutoff state. Conversely, when the foam cleaning assembly 2 moves forward from the housing position, that is, towards the cleaning position, the foam cleaning assembly 2 is disconnected from the microswitch 6. This stops the microswitch 6, and the circuit of the foam cleaning assembly 2 enters an open state. ru.

[0095] Naturally, one microswitch 6 may be provided at the front and one at the rear of the casing 1, serving as an open switch and a shut-off switch, respectively. This ensures reliable placement of the foam cleaning assembly 2 in its designated position and release to the cleaning position, while also preventing unexpected activation of the foam cleaning assembly 2.

[0096] As an alternative to the two above-mentioned methods, as shown in Figures 3 and 4, the microswitch 6 consists of two parts: a fixed contact 61 provided on the casing 1 and a movable contact 62 provided on the foam cleaning assembly 2 that corresponds to the position of the fixed contact 61. When the foam cleaning assembly 2 moves with the movable contact 62 until it contacts the fixed contact 61, the microswitch 6 closes, controlling the circuit of the foam cleaning assembly 2 to either shut off or open.

[0097] Furthermore, the microswitch 6 is provided within the housing cavity 10.

[0098] Specifically, as shown in Figures 3 and 4, the fixed contact 61 is provided on the inner wall of the housing cavity 10 of the casing 1. The movable contact 62 is provided in the foam cleaning assembly 2 at a location within the housing cavity 10. This design facilitates the contact and disconnection of the two contacts of the microswitch 6 while also providing protection for the microswitch 6.

[0099] As shown in Figure 6, the partial foam cleaning apparatus of the present invention further includes a transmission assembly 3 connected to the casing 1 and the foam cleaning assembly 2, which transmits power between the casing 1 and the foam cleaning assembly 2 to move the foam cleaning assembly 2 between the housing position and the cleaning position.

[0100] The power transmission assembly 3 of the present invention is capable of transmitting power between the casing 1 and the foam cleaning assembly 2. This facilitates the housing of the foam cleaning assembly 2 and the partial cleaning of the object to be cleaned by moving the foam cleaning assembly 2 to the cleaning position, making it easier for the user to operate and use.

[0101] In detail, when using the above-described partial foam cleaning device, the foam cleaning assembly 2 is moved from inside the casing 1 to outside the casing 1 by the transmission assembly 3 to facilitate partial cleaning or pre-application of the cleaning agent. Since the cleaning agent is foamed directly, it is less likely to fall off the clothes, and the process of wetting with water, rubbing, and foaming is omitted. In addition, the active ingredients in the foam are fully utilized, so the cleaning, disinfecting, and moisturizing effects are greatly improved.

[0102] After use, the foam cleaning assembly 2 is moved from outside the casing 1 to inside the casing 1 by the transmission assembly 3, thereby preventing the foam cleaning assembly 2 from occupying a large space.

[0103] Furthermore, a bottom base 41 is connected to the bottom of the foam cleaning assembly 2. The bottom base 41 moves back and forth, thereby switching the foam cleaning assembly 2 between the storage position and the cleaning position.

[0104] The movable contact 62 of the microswitch 6 is provided on the bottom base 41. Specifically, the movable contact 62 is provided in a location on the bottom base 41 that is always located within the housing cavity 10. This design reduces contact between the foam cleaning assembly 2 and the casing 1, thereby preventing collision or wear of the foam cleaning assembly 2 and protecting it.

[0105] One end of the casing 1 on the opening side is the front end of the casing 1, and the other end of the casing 1 that is separated from the opening is the rear end of the casing 1. In addition, of the foam cleaning assembly 2, one end facing the front end of the casing 1 is the front end of the foam cleaning assembly 2, and the other end facing the rear end of the casing 1 is the rear end of the foam cleaning assembly 2.

[0106] As one implementation plan, as shown in Figure 3, the fixed contact 61 and movable contact 62 of the microswitch 6 are provided at the front of the casing 1 and the rear of the foam cleaning assembly 2, respectively. The microswitch 6 is an open switch. When the foam cleaning assembly 2 is in the cleaning position, the fixed contact 61 and the movable contact 62 come into contact, and the circuit of the foam cleaning assembly 2 is opened. Specifically, the movable contact 62 of the open switch is provided on the bottom wall of the bottom base 41 and is close to the rear end of the bottom base 41. The fixed contact 61 of the open switch is provided on the front wall of the housing cavity 10 and corresponds to the position of the movable contact 62, and is located at the lower part of the front wall of the housing cavity 10.

[0107] And / or, the fixed contact 61 and movable contact 62 of the microswitch 6 are provided at the rear of the casing 1 and the foam cleaning assembly 2, respectively. The microswitch 6 is a shut-off switch. When the foam cleaning assembly 2 is in the housing position, the fixed contact 61 and the movable contact 62 come into contact, and the circuit of the foam cleaning assembly 2 is shut off.

[0108] As a preferred configuration, as shown in Figure 4, two sets of the microswitch 6 are provided, each serving as an open switch and a shut-off switch. The movable contact 62 of the open switch is provided on the bottom wall of the bottom base 41 and is located close to the rear end of the bottom base 41. The fixed contact 61 of the open switch is provided on the front wall of the housing cavity 10 and corresponds to the position of the movable contact 62, and is located at the lower part of the front wall of the housing cavity 10. The movable contact 62 of the shut-off switch is provided on the rear wall of the bottom base 41, and the fixed contact 61 is provided on the rear wall of the housing cavity 10 and corresponds to the position of the movable contact 62.

[0109] In the first and second embodiments, the microswitch 6 is provided on the bottom base 41. The bottom base 41 triggers the microswitch 6 by bringing it into contact with the inner wall of the housing cavity 10. And / or, the microswitch 6 is provided on the inner wall of the housing cavity 10. The bottom base 41 triggers the microswitch 6 by moving and coming into contact with the microswitch 6.

[0110] As shown in Figure 5, the partial foam cleaning device of the present invention further includes a switch unit 7 used to control the foam cleaning assembly 2 to start up and supply foamy detergent, and to control the foam cleaning assembly 2 to stop supplying foamy detergent, after the foam cleaning assembly 2 receives a relevant signal.

[0111] Specifically, when the foam cleaning assembly 2 is energized, the switch unit 7 can control the foam cleaning assembly 2 to start up and supply foamy detergent, and can also control the foam cleaning assembly 2 to stop supplying foamy detergent.

[0112] The switch section includes a mechanical knob and / or a sensing unit.

[0113] If the switch unit 7 is a mechanical knob, it is provided on the foam washing assembly 2, on the casing 1, on the panel base 5 of the washing machine, or on the control panel of the washing machine.

[0114] If the switch unit 7 is a sensing unit, the switch unit 7 is provided in close proximity to the foam cleaning assembly 2, or belongs to a part of the foam cleaning assembly 2, and is capable of extending to the outside and being housed in the housing cavity 10 together with the foam cleaning assembly 2.

[0115] In this solution, the foam cleaning assembly 2 is activated only when the switch unit 7 is turned on while the circuit is open, which is equivalent to providing at least a double switch on the foam cleaning assembly 2. In particular, when the switch unit 7 is a sensing unit, the sensing unit is relatively sensitive. Therefore, for example, in the case of a temperature sensor or an infrared sensor, it is likely that the unit will be triggered by receiving a temperature or infrared signal when a user approaches. By providing a microswitch 6, the probability of the foam cleaning assembly 2 being triggered by mistake is reduced.

[0116] The transmission assembly 3 includes a first meshing unit connected to the casing 1 and a second meshing unit connected to the foam cleaning assembly 2, which meshes with and connects to the first meshing unit. The second meshing unit works in conjunction with the first meshing unit to allow the foam cleaning assembly 2 to move between the housing position and the cleaning position.

[0117] As shown in Figures 6 to 8, the partial foam cleaning device of the present invention further includes a pull handle portion 4 connected to the foam cleaning assembly 2. The second engagement unit is provided on the pull handle portion 4.

[0118] The partial foam cleaning device has a manual control structure, and the second meshing unit is moved by pushing or pulling the pull handle 4. The first meshing unit works in conjunction with the second meshing unit to guide the movement of the foam cleaning assembly 2 between the housing position and the cleaning position.

[0119] When using the above-described partial foam cleaning device, the user pulls the handle 4 to move the foam cleaning assembly 2 from the inside to the outside of the casing 1, and at the same time, the second meshing unit connected to the handle 4 is moved horizontally toward the outside of the casing 1 relative to the first meshing unit.

[0120] When use is finished, the user pushes the pull tab 4 to move the foam cleaning assembly 2 from the outside to the inside of the casing 1, and at the same time moves the second engagement unit connected to the pull tab 4 horizontally toward the inside of the casing 1 relative to the first engagement unit.

[0121] The alternative method achieves the objective of automatically switching the foam cleaning assembly 2 between the storage position and the cleaning position without manual operation by the user. This simplifies user operation.

[0122] In detail, the partial foam cleaning device is an automatically controlled structure. The meshing assembly shown herein further includes a drive unit connected to the first meshing unit and / or the second meshing unit to move the first meshing unit and / or the second meshing unit. The first meshing unit works in conjunction with the second meshing unit to guide the movement of the foam cleaning assembly 2 between the housing position and the cleaning position.

[0123] The pull handle portion 4 serves as an intermediary structure connecting the foam cleaning assembly 2 and the transmission assembly 3. The pull handle portion 4 moves the foam cleaning assembly 2. This prevents the foam cleaning assembly 2 from being directly connected to the transmission assembly 3, thus preventing wear on the foam cleaning assembly 2 due to contact and relative movement with the first meshing unit provided on the casing 1 during the movement process. In addition, the provision of the pull handle portion 4 makes it easier for the user to manually push and pull the foam cleaning assembly 2.

[0124] If the partial foam cleaning device has an automatic control structure, the handle portion 4 does not need to be provided. In this case, in order to prevent wear of the foam cleaning assembly 2, a bottom base 41 may be provided at the bottom of the foam cleaning assembly 2 and connected to the foam cleaning assembly 2. The bottom base 41 moves, thereby moving the foam cleaning assembly 2 between the storage position and the cleaning position.

[0125] As shown in Figures 6 and 7, the first meshing unit includes a gear provided in the casing 1, and the second meshing unit includes a rack 34 that meshes with and connects to the gear. The rack 34 is connected to and moves together with the foam cleaning assembly 2.

[0126] Furthermore, the rack 34 is provided on the bottom base 41.

[0127] Alternatively, the rack 34 is provided on the casing 1, and the gear is provided on the bottom base 41. The gear reciprocates on the rack 34 while rotating in forward and reverse directions, thereby switching the movement of the foam cleaning assembly 2 relative to the casing 1 between the housing position and the cleaning position.

[0128] The gear and rack 34 of this invention are connected by meshing, enabling power transmission between the foam cleaning assembly 2 and the casing 1. This ensures a secure connection between the foam cleaning assembly 2 and the casing 1 while also allowing linear motion of the foam cleaning assembly 2.

[0129] As shown in Figures 6 and 7, the pull handle portion 4 includes the bottom base 41 and the connecting wall 43.

[0130] The bottom base 41 is provided below the foam cleaning assembly 2, and a perforated portion 42 is provided in the portion corresponding to the foam cleaning assembly 2 to allow the water flow of the foam cleaning assembly 2 to pass through. The rack 34 is provided on at least one side wall of the bottom base 41. The gear is provided in the housing cavity and is located on the same side as the rack 34, corresponding to its position.

[0131] The connecting wall 43 is located between the foam cleaning assembly 2 and the bottom base 41 and is connected to the foam cleaning assembly 2 and the bottom base 41, respectively.

[0132] In the above solution, the user moves the foam cleaning assembly 2 between the storage position and the cleaning position by pushing and pulling the bottom base 41. This improves stability during operation.

[0133] Furthermore, a perforated section 42 is provided in the bottom base 41, allowing the water flow generated in the foam cleaning assembly 2 to flow out quickly. This prevents foam from accumulating and adhering to the foam cleaning assembly 2, thus avoiding problems such as clogging.

[0134] As one implementation, the rack 34 is provided on the left and right side walls of the bottom base 41. The gear is provided within the housing cavity and is located on the left and right sides of the bottom base 41, corresponding to the position of the rack 34.

[0135] As shown in Figures 6 and 7, the radial direction of the gear is aligned with the vertical direction of the housing cavity. The rack 34 is located above and / or below the gear and meshes with and connects to the gear in the vertical direction. This arrangement reduces the space occupied by the transmission assembly 3, making the overall structure of the partial foam cleaning device more compact.

[0136] Furthermore, as shown in Figures 6 and 7, two racks 34 are provided on one side of the bottom base 41. The two racks 34 are arranged parallel to each other, and their teeth face each other. There are at least two gears provided on that side of the housing cavity, located between the two racks 34 and connected to each of the two racks 34.

[0137] Two sets of racks 34 and gears are provided on the same side of the foam cleaning assembly 2. This ensures linear motion of the foam cleaning assembly 2, thereby improving stability during its movement.

[0138] If the foam cleaning assembly 2 has a manually controlled structure, two gears are provided, each connected to two racks 34. There may be a gap between the two gears, or the two gears may be meshed together. Alternatively, at least three gears may be provided. Of these, two gears are connected to one of the racks 34 to form a positioning wheel 32. Each gear, in cooperation with the two racks 34, plays a directional role in the movement direction of the foam cleaning assembly 2. Preferably, there is a gap between the two positioning wheels 32.

[0139] If the foam cleaning assembly 2 has an automatic control structure, the drive unit is provided in the casing 1 and connected to a gear, which is used to rotate the gear. This gear is a drive wheel 31. The drive wheel 31 is connected to a rack 34. Alternatively, two gears are provided, and the other gear is a driven wheel 33 that meshes with and connects to the drive wheel 31 and is connected to the other rack 34. Or, three gears are provided, and the remaining two gears are connected to the other rack 34 to form positioning wheels 32. The drive wheel and positioning wheels 32 work in conjunction with the two racks 34, respectively, to determine the direction of movement of the foam cleaning assembly 2. Preferably, there is a distance between the two positioning wheels 32.

[0140] One possible implementation is that the drive unit is a motor.

[0141] If the foam cleaning assembly 2 has an automatic control structure, the transmission assembly 3 further includes a control switch 35 that is electrically connected to the drive unit to control the on / off state of the drive unit. The user can manually control the on / off state of the control switch 35. Alternatively, the control switch 35 may be controlled by a cleaning program and / or infrared and / or voice and / or a mobile terminal.

[0142] The control switch 35 is provided on the casing 1, on the panel base of the washing machine, or on the control panel of the washing machine.

[0143] The drive unit of the present invention enables automatic control of the foam cleaning assembly 2. Furthermore, by providing two positioning wheels 32, the stability and smoothness of the movement of the foam cleaning assembly 2 in the direction of motion can be ensured, thus preventing tilting and improving reliability.

[0144] As one implementation, the distance between the two racks 34 is the minimum distance that can accommodate the drive wheel 31 and the positioning wheel 32. According to this implementation, the foam cleaning assembly 2 can obtain sufficient driving force for movement with the minimum driving force of the drive unit. This saves electrical energy, reduces equipment damage, and extends the overall service life of the foam cleaning assembly 2.

[0145] The casing 1 is provided with a position regulating section. In addition, a first positioning section and a second positioning section are provided at both the front and rear ends of the pull handle section 4, respectively. The first and second positioning sections work in conjunction with the position regulating section to enable movement of the foam cleaning assembly 2 within a predetermined range. This prevents the foam cleaning assembly 2 from detaching from the casing 1 or from colliding with the rear wall of the casing 1 inward.

[0146] Furthermore, the position regulating unit can control the on / off state of the motor.

[0147] The position regulating unit is equipped with a tact switch used to turn the motor on and off. When the first positioning unit or the second positioning unit contacts the tact switch, it becomes normally open or normally closed, allowing the control panel to determine that the foam cleaning assembly 2 is in the storage or cleaning position. Pressing the control switch 35 once will directly turn the foam cleaning assembly 2 on or off. In other states, the control circuit of the drive unit is shut off and the power is cut off.

[0148] In addition, the motor's clockwise and counterclockwise rotation states are alternately changed in sequence by pressing the control switch 35. Pressing the control switch 35 once starts the motor's clockwise rotation, and pressing it again starts the motor's counterclockwise rotation, and so on. When the control switch 35 is first pressed, the motor starts operating, and the drive wheel 31 on the motor moves the rack 34, to which the drive wheel 31 is connected, toward the outside of the casing 1. When the foam cleaning assembly 2 is opened to a certain position, the first positioning unit contacts the tact switch on the position regulating unit, turning off the switch, and the foam cleaning assembly 2 stops operating. When the control switch 35 is pressed again, the motor starts operating, and the drive wheel 31 on the motor moves the rack 34 to which it is connected in the opposite direction. Then, when the foam cleaning assembly 2 is closed to a certain position, the second positioning unit contacts the tact switch on the position regulating unit, shutting off the control circuit and stopping the operation of the foam cleaning assembly 2. As a result, the foam cleaning assembly 2 is closed to the predetermined position and placed in the storage position.

[0149] As shown in Figure 8, the casing 1 of the present invention is provided with a door body 11 located at the opening of the housing cavity, the upper end of which is connected to the upper end of the opening, and which closes the housing cavity when the foam cleaning assembly 2 is in the housing position and opens the opening of the casing 1 when the foam cleaning assembly 2 moves from the housing position to the outside.

[0150] As shown in Figure 9, the foam cleaning assembly 2 includes a water discharge unit for supplying cleaning water during partial cleaning and a foam generating unit 23 for supplying foamy detergent during partial cleaning.

[0151] The switch unit 7 is provided as a single mechanical knob for controlling the on / off state of the water discharge unit and the foam generating unit 23. The operation method includes the following: Triggering the switch unit 7 once to activate the foam generating unit 23, then triggering the switch unit 7 once more to deactivate the foam generating unit 23. Alternatively, triggering the switch unit 7 twice in a row to activate the water discharge unit, then triggering the switch unit 7 twice more in a row to deactivate the water discharge unit.

[0152] Alternatively, as shown in Figure 5, there are two switch units 7, each being a mechanical knob and / or sensing unit for controlling the on / off state of the water discharge unit and the foam generating unit 23. Specifically, the switch unit 7 for controlling the water discharge unit controls the water discharge unit to discharge water when turned on. The switch unit 7 for controlling the foam generating unit 23 controls the foam generating unit 23 to generate foamy detergent when turned on.

[0153] The foam generating unit 23 has a discharge port 231 provided on the side of the foam generating unit 23 that is separated from the rear wall of the housing cavity 10 and is used to discharge foamy detergent.

[0154] Furthermore, a housing 25 is installed above the foam generating unit 23.

[0155] If the switch unit 7 is a mechanical knob, it is provided on the housing 25, and the discharge port 231 faces downward. Specifically, the switch unit 7 is provided on the outer wall of the housing 25. The housing 25 serves to protect the foam generating unit 23. Furthermore, by providing the switch unit 7 on the housing 25, contact with the foam generating unit 23 by the user is reduced, thus further protecting the foam generating unit 23.

[0156] As shown in Figure 9, when the switch unit 7 is a sensing unit, it is provided below the housing 25 and can be covered by the housing 25. This reduces the probability of the sensing unit being triggered unintentionally while also protecting the sensing unit.

[0157] As one implementation method, as shown in Figure 9, a housing 25 is also provided below the foam generating unit 23. The two housings 25 are distributed on both the upper and lower sides of the foam generating unit 23 and the switch unit 7, respectively, and are both located above the bottom base 41. By combining the two housings 25, it is possible to cover both the upper and lower sides of the foam generating unit 23 and the switch unit 7.

[0158] In some embodiments of the present invention, the foam cleaning assembly 2 includes a water discharge unit, a first sensing unit, a foam generating unit, and a second sensing unit.

[0159] In detail, the water discharge unit is used to supply washing water during spot cleaning. The first sensing unit is used to trigger water discharge by the water discharge unit when it detects clothing. The foam generating unit is used to supply foamy detergent during spot cleaning. The second sensing unit is used to trigger the generation of foamy detergent by the foam generating unit when it detects clothing.

[0160] In the above plan, the foam generating unit and water dispensing unit, which dispense detergent and water, are controlled by a sensing device to determine whether or not they are activated. During the partial cleaning process, the cleaning effect on specific areas may be improved by alternating between the process of wetting the clothes and the process of adding detergent.

[0161] In a further configuration, the foam generating unit and the second sensing unit are provided within the housing. The outlet of the foam generating unit and the sensing end of the second sensing unit are provided on the bottom wall of the housing. Furthermore, the outlet of the foam generating unit is located further away from the connecting wall 43 than the sensing end of the second sensing unit.

[0162] In the above design, the foam generating unit and the second sensing unit are integrated and housed within the housing, with the detergent foam outlet located only on the bottom wall of the housing. This improves the overall appearance of the device and enhances the user experience.

[0163] Furthermore, since the outlet of the foam generating unit is positioned further away from the connecting wall 43 than the sensing end of the second sensing unit, it is possible to avoid a situation where the discharge of detergent foam begins before the clothes reach the outlet of the foam generating unit.

[0164] In a further design, the water discharge unit and the first sensing unit are integrally integrated and located below the housing, and are set back from the outlet of the foam generating unit and the sensing end of the second sensing unit.

[0165] In the above-described solution, the water discharge unit and the first sensing unit are integrated into a single unit, which similarly improves the overall appearance of the device and enhances the user experience.

[0166] Furthermore, by adopting a system where the water discharge assembly and the detergent discharge assembly are arranged vertically, the width of the partial foam cleaning device can be reduced. This is advantageous, for example, when mounting the partial foam cleaning device to a structure such as the panel base of a washing machine.

[0167] As a method of retraction as described above, for example, the size of the water discharge unit and the first sensing unit may be smaller than the size of the foam generating unit and the second sensing unit.

[0168] As shown in Figures 1 to 9, another object of the present invention is to provide a washing machine equipped with the partial foam washing device described above.

[0169] The washing machine includes a casing, and a washing tank is provided inside the casing. A panel base 5 having a clothing loading opening 51 is provided above the casing. The partial foam washing device can be installed on the panel base 5. Preferably, the panel base 5 itself may also serve as the casing 1.

[0170] The above description is merely a preferred embodiment of the present invention and does not limit the present invention in any way. The present invention has been disclosed as described above by preferred embodiments, but this is not intended to limit the present invention. Minor changes or modifications that a person skilled in the art can implement using the technical content presented above, without departing from the technical solution of the present invention, are equivalent modified embodiments and none of them depart from the content of the technical solution of the present invention. Furthermore, any simple modifications, equivalent modifications and alterations made to the above embodiments based on the technical essence of the present invention all fall within the scope of the present invention. [Explanation of Symbols]

[0171] 1 Casing 10 storage cavities 11 Door Body 2. Foam cleaning assembly 23 Foam generating unit 231 Liquid spout 25 Housing 3. Transmission Assembly 31 drive wheels 32 Positioning Wheels 33 Driven wheels 34 racks 35 Control Switches 4. Pull handle 41 Bottom Base 42 Watermark 43 Connecting Walls 5 Panel Base 51 Clothes input slot 6 microswitches 61 Fixed contacts 62 Movable contact 7 Switch section

Claims

1. A partial foam cleaning device, A casing having a housing cavity, A foam cleaning assembly is connected to the casing and is movable relative to the casing, and is used to supply foamy detergent at least during partial cleaning. The system includes a signal transmission unit that transmits a signal including an electrical signal to the partial foam cleaning device when the foam cleaning assembly moves to a predetermined position, The foam cleaning assembly has a housing position and a cleaning position relative to the casing, wherein in the housing position, the foam cleaning assembly is housed within the housing cavity of the casing, and in the cleaning position, the foam cleaning assembly is located outside the housing cavity of the casing. The signal transmission unit includes a microswitch, which is electrically connected to the foam cleaning assembly and can control the open / closed state of the foam cleaning assembly's circuit based on the foam cleaning assembly's position, opening the circuit when the foam cleaning assembly is in the cleaning position and closing the circuit when the foam cleaning assembly is in the storage position. The apparatus further includes a switch unit used to control the foam cleaning assembly to start up and supply foamy detergent, and to control the foam cleaning assembly to stop supplying foamy detergent, after the foam cleaning assembly has received a relevant signal and the circuit is open.

2. The microswitch is provided in the casing and / or the foam cleaning assembly, and when the foam cleaning assembly moves to the cleaning position and / or the housing position, the microswitch is triggered to control the opening or closing of the circuit of the foam cleaning assembly. Alternatively, the partial foam cleaning apparatus according to claim 1, wherein the microswitch includes a fixed contact provided in the casing and a movable contact provided in the foam cleaning assembly corresponding to the position of the fixed contact, and controls the circuit of the foam cleaning assembly to be interrupted or opened when the foam cleaning assembly moves with the movable contact until it contacts the fixed contact.

3. The microswitch is provided within the housing cavity. The partial foam cleaning apparatus according to claim 2, characterized in that the fixed contact is provided on the inner wall of the housing cavity of the casing, and the movable contact is provided in a portion of the foam cleaning assembly located within the housing cavity.

4. A bottom base is connected to the bottom of the foam cleaning assembly, and the bottom base moves back and forth to switch the foam cleaning assembly between the housing position and the cleaning position. The partial foam cleaning device according to claim 2, characterized in that the movable contact of the microswitch is provided on the bottom base.

5. One end of the casing on the opening side is the front end of the casing, and the other end away from the opening of the casing is the rear end of the casing. Of the foam cleaning assembly, one end facing the front end of the casing is the front end of the foam cleaning assembly, and the other end facing the rear end of the casing is the rear end of the foam cleaning assembly. The fixed contact and movable contact of the microswitch are provided at the front of the casing and the rear of the foam cleaning assembly, respectively, and the microswitch is an open switch. When the foam cleaning assembly is in the cleaning position, the fixed contact and the movable contact come into contact, opening the circuit of the foam cleaning assembly. The partial foam cleaning apparatus according to claim 2, characterized in that the fixed contact and movable contact of the microswitch are provided at the rear of the casing and the foam cleaning assembly, respectively, the microswitch is a shut-off switch, and when the foam cleaning assembly is in the housing position, the fixed contact and the movable contact come into contact, thereby shutting off the circuit of the foam cleaning assembly.

6. The partial foam cleaning device according to claim 1, characterized in that the switch section includes a mechanical knob and / or a sensing unit.

7. The foam cleaning assembly is A water discharge unit for supplying cleaning water during partial cleaning, Includes a foam generating unit for supplying foamy detergent during spot cleaning, One switch unit is provided and is used to control the on / off state of the water discharge unit and the foam generation unit. Alternatively, the partial foam cleaning device according to claim 6, characterized in that two switch units are provided, each used to control the on / off state of the water discharge unit and the foam generation unit.

8. The partial foam cleaning apparatus according to claim 1, further comprising a transmission assembly connected to the casing and the foam cleaning assembly, which transmits power between the casing and the foam cleaning assembly to move the foam cleaning assembly between the housing position and the cleaning position.

9. The aforementioned transmission assembly is A first meshing unit connected to the casing, It includes a second meshing unit which is connected to each of the foam cleaning assemblies and meshes with and is connected to the first meshing unit, The partial foam cleaning device according to claim 8, characterized in that the second meshing unit works in conjunction with the first meshing unit to move the foam cleaning assembly between the housing position and the cleaning position.

10. Furthermore, it includes a pull tab that is connected to the foam cleaning assembly, and the second interlocking unit is provided on the pull tab. By pushing and pulling the handle portion, the second meshing unit is moved, and the first meshing unit, in cooperation with the second meshing unit, guides the movement of the foam cleaning assembly between the housing position and the cleaning position. Alternatively, the meshing assembly further includes a drive unit connected to the first meshing unit and / or the second meshing unit for moving the first meshing unit and / or the second meshing unit, wherein the first meshing unit cooperates with the second meshing unit to guide the movement of the foam cleaning assembly between the housing position and the cleaning position, as described in claim 9.

11. The first meshing unit includes a gear provided in the casing, The partial foam cleaning apparatus according to claim 10, wherein the second meshing unit includes a rack that meshes with and is connected to the gear, the rack being connected to and moving together with the foam cleaning assembly.

12. The handle portion includes a bottom base, which is located below the foam cleaning assembly, and has a perforated portion in the part corresponding to the foam cleaning assembly to allow the water flow of the foam cleaning assembly to pass through. The rack is provided on at least one side wall of the bottom base, The partial foam cleaning device according to claim 11, characterized in that the gear is provided in the housing cavity and is located on the same side corresponding to the position of the rack.

13. The radial direction of the gear is aligned with the vertical direction of the housing cavity. The partial foam cleaning device according to claim 12, characterized in that the rack is located above and / or below the gear and is connected to the gear by meshing with it in the vertical direction.

14. Two racks are provided on one side of the bottom base, and the two racks are arranged parallel to each other, with teeth facing each other. The partial foam cleaning device according to claim 13, wherein there are at least two gears provided on the side of the housing cavity, which are located between two racks and are connected to the two racks respectively.

15. The drive unit is provided in the casing and is connected to a gear, which is used to rotate the gear, the gear being a drive wheel, and the drive wheel being connected to a rack, Two of the aforementioned gears are provided; the other gear is connected to the drive wheel by meshing with it, and is also a driven wheel connected to the other rack. Alternatively, three gears may be provided, with the remaining two gears each connected to another rack to form a positioning wheel, and the drive wheel and positioning wheel, in cooperation with the two racks respectively, perform a directional function regarding the direction of movement of the foam cleaning assembly. The partial foam cleaning device according to claim 14, characterized in that there is a distance between the two positioning wheels.

16. The partial foam cleaning apparatus according to claim 15, characterized in that the distance between the two racks is the minimum distance that can accommodate the drive wheel and the positioning wheel.

17. The foam cleaning assembly is A water discharge unit for supplying cleaning water during partial cleaning, Includes a foam generating unit for supplying foamy detergent during spot cleaning, One switch unit is provided and is used to control the on / off state of the water discharge unit and the foam generation unit. Alternatively, the partial foam cleaning device according to claim 8 is characterized in that two switch units are provided, each used to control the on / off state of the water discharge unit and the foam generation unit.

18. A washing machine characterized by including a partial foam washing device according to any one of claims 1 to 17.

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