Partial foam cleaning 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 relates to the technical field of clothing treatment, and more particularly to a partial foam cleaning device and a washing machine. [Background technology]

[0002] A washing machine is a machine that uses mechanical power generated by electricity to wash laundry. In the case of clothes such as shirts, the collar and cuffs of the clothes are generally dirtier than other parts, but conventional washing machines are less effective at cleaning certain parts of the clothes such as the collar and cuffs during the washing process.

[0003] In the prior art, it is often necessary to add a separate ultrasonic cleaner to the washing machine to achieve this goal.

[0004] For example, Patent Document 1 discloses a partial washing structure for clothes and a washing machine. The partial washing structure for clothes is removably installed on a panel base of the washing machine and connected to a water supply path / detergent case of the washing machine. The partial washing structure for clothes 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, and when the pressing plate is strongly pressed toward the support plate, a slit for clamping the part of the clothes to be washed is formed between them, and the clothes are clamped while the part to be washed is ultrasonically cleaned.

[0005] The above solution solves to some extent the problem of the washing machine being unable to clean some heavily soiled areas, but it requires removing and attaching the partial cleaning structure of the clothes according to the cleaning needs, which is inconvenient for users.

[0006] Patent Document 2 discloses a washing machine with a partial pre-wash function. The washing machine includes an ultrasonic cleaning device. The washing machine has a storage space for storing the ultrasonic cleaning device. The ultrasonic cleaning device is provided in the storage space so as to be rotatable in and out.

[0007] Although the above solution solves to some extent the problem of the washing machine being unable to clean some heavily soiled areas, the installation of an ultrasonic cleaning device in the washing machine will undoubtedly increase the cost of the washing machine, reducing the market competitiveness of the washing machine. In addition, it is difficult to ensure that the ultrasonic cleaning device does not come into contact with anything after being inserted into the storage space, which will lead to the ultrasonic cleaning device being started up unexpectedly.

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

[0009] [Patent Document 1] Chinese Patent Application No. 2017101131757 [Patent Document 2] Chinese Patent Application No. 201810509321.2 Summary of the Invention [Problem to be solved by the invention]

[0010] The technical problem that the present invention aims to solve is to provide a partial foam cleaning device capable of transmitting position information of a foam cleaning assembly, in order to eliminate the defects of the prior art, and to reliably ensure that the foam cleaning assembly is opened or closed at a specified position. [Means for solving the problem]

[0011] In order to solve the above technical problems, a partial foam cleaning device provided in a first aspect of the present invention includes a casing, a foam cleaning assembly connected to the casing and movable relative to the casing and 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 moves to a predetermined position.

[0012] By using the above solution, the position information of the foam cleaning assembly can be reflected to reliably ensure that the foam cleaning assembly is opened or closed at a predetermined position.

[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 is capable of controlling the open / closed state of a circuit of the foam cleaning assembly based on the location of the foam cleaning assembly.

[0015] The above solution replaces the prior art in which the foam cleaning assembly remains energized when the circuit of the foam cleaning assembly is open, which can easily cause the foam cleaning assembly to be accidentally started, and also replaces the prior art in which the user must manually switch the circuit between open and closed, thus simplifying the user's operation procedure.

[0016] Additionally, the casing has a receiving cavity.

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

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

[0019] By using the above method, it is possible to prevent the foam cleaning assembly from unexpectedly starting up when it is in the storage position because the circuit is open, causing foam detergent to be pushed out, which not only affects the cleaning progress but also prevents contamination of the partial foam cleaning device itself and its environment.

[0020] Further, the microswitch is provided on the casing and / or the foam cleaning assembly, and when the foam cleaning assembly moves to the cleaning position and / or the storage position, the microswitch is triggered to control the opening or closing of the circuit of the foam cleaning assembly.

[0021] Alternatively, the microswitch includes a fixed contact provided on the casing and a movable contact provided on the foam cleaning assembly corresponding to the position of the fixed contact, and controls the circuit of the foam cleaning assembly to be opened or closed when the foam cleaning assembly moves together with the movable contact until it comes into contact with the fixed contact.

[0022] Further, the microswitch is disposed within the receiving cavity.

[0023] Preferably, the fixed contact is provided on an inner wall of a receiving cavity of the casing, and the movable contact is provided at a portion of the foam cleaning assembly located within the receiving cavity.

[0024] By using the above solution, it is possible to easily connect and disconnect the two contacts of the micro switch, while also protecting the micro switch.

[0025] Furthermore, a bottom base is connected to the bottom of the foam cleaning assembly, and the bottom base reciprocates to switch the foam 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 foam cleaning assembly and the casing can be reduced, so that the foam cleaning assembly can be prevented from being impacted or worn, and the function of protecting the foam cleaning assembly can be achieved.

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

[0029] The fixed contact and the 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 are in contact with each other to open the circuit of the foam cleaning assembly.

[0030] And / or, the fixed contact and the movable contact of the microswitch are provided at the rear of the casing and the foam cleaning assembly, respectively. The microswitch is an interrupting switch. When the foam cleaning assembly is in the storage position, the fixed contact and the movable contact are in contact with each other to interrupt the circuit of the foam cleaning assembly.

[0031] Further, the foam cleaning assembly includes a switch unit used to at least control the foam cleaning assembly to start up and dispense foam detergent after the foam cleaning assembly receives a related signal, and to control the foam cleaning assembly to stop dispensing foam detergent.

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

[0033] By using the above solution, the foam cleaning assembly will only start when the switch part is turned on with the circuit open, which is at least equivalent to providing a double switch in the foam cleaning assembly, thereby reducing the probability of the foam cleaning assembly being falsely triggered.

[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] The switch unit is provided as one unit and is used to control the on / off of the water discharge unit and the foam generation unit.

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

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

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

[0039] By using the above solution, the housing can protect the foam generating unit, and by providing the switch part on the housing, the contact with the foam generating unit by the user can be reduced, which further protects the foam generating unit.

[0040] In a second aspect, the present invention provides another partial foam cleaning device that can be switched between a cleaning position and a storage position to reduce the space occupied by the partial foam cleaning device, the partial foam cleaning device includes a casing having a storage cavity, a foam cleaning assembly having a storage position and a cleaning position relative to the casing, the foam cleaning assembly being stored in the storage cavity of the casing when in the storage position and being located outside the storage cavity of the casing when in the cleaning position, and a transmission assembly connected to the casing and the foam cleaning assembly for transmitting power between the casing and the foam cleaning assembly to move the foam cleaning assembly between the storage position and the cleaning position.

[0041] The above solution facilitates storing the foam cleaning assembly and moving the foam cleaning assembly to the cleaning position for partial cleaning of the object to be cleaned, which is convenient for users to operate and use.

[0042] Furthermore, the transmission assembly includes a first meshing unit connected to the casing, and a second meshing unit respectively connected to the foam cleaning assembly, and correspondingly meshed and connected to the first meshing unit.

[0043] The second mating unit cooperates with the first mating unit to move the foam cleaning assembly between the stow position and the cleaning position.

[0044] The foam cleaning assembly further includes a pull tab connected to the foam cleaning assembly, the second engagement unit being disposed on the pull tab.

[0045] The pull tab is pushed or pulled to move the second mating unit, and the first mating unit cooperates with the second mating unit to guide movement of the foam cleaning assembly between the storage position and the cleaning position.

[0046] Alternatively, the mating assembly further includes a drive unit connected to the first mating unit and / or the second mating unit for moving the first mating unit and / or the second mating unit, the first mating unit cooperating with the second mating unit to guide the movement of the foam cleaning assembly between the storage position and the cleaning position.

[0047] By using the above solution, the foam cleaning assembly can be configured as an automatic control structure or a manual control structure as required.

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

[0049] The second meshing unit includes a rack meshingly connected to the gear, the rack being connected to a foam cleaning assembly for movement therewith.

[0050] The above solution can realize the power transmission between the foam cleaning assembly and the casing by meshing the gear and the rack, thereby ensuring the connection effect between the foam cleaning assembly and the casing, and converting the rotation of the gear into the linear motion of the rack to make the foam cleaning assembly move linearly.

[0051] The pull tab further includes a bottom base that is disposed below the foam cleaning assembly and has a perforated portion at a portion corresponding to the foam cleaning assembly to allow the water flow of the foam cleaning assembly to pass therethrough.

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

[0053] The gear is disposed within the receiving cavity and is located on the same side as the rack.

[0054] Furthermore, the radial direction of the gear is aligned along the vertical direction of the receiving cavity.

[0055] The rack is located above and / or below the gear and is vertically meshingly connected with the gear.

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

[0057] Furthermore, two racks are provided on one side of the bottom base, the two racks being parallel to each other with teeth facing each other.

[0058] There are at least two gears provided on that side of the receiving cavity, which are located between the two racks and are respectively connected to the two racks.

[0059] By using the above solution, the stability of the partial foam cleaning device during the moving process is improved.

[0060] Furthermore, the drive unit is mounted in the casing and is connected to a gear for rotating the gear, the gear being a drive wheel, and the drive wheel is connected to a rack.

[0061] Two such gears are provided, and the other gear is connected in mesh with the drive wheel and serves as a driven wheel joined to another rack.

[0062] Alternatively, three gears are provided, and the remaining two gears are each joined with another rack to form a positioning wheel. The driving wheel and the positioning wheel cooperate with the two racks, respectively, to determine the direction of movement of the foam cleaning assembly.

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

[0064] By using the above solution, the driving unit can realize the automatic control of the foam cleaning assembly, and the provision of two positioning wheels can ensure the smooth operation of the foam cleaning assembly in the moving direction, so that the assembly is not tilted and is more reliable.

[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 solution, the foam cleaning assembly can obtain sufficient driving force for movement with a minimum driving force, thus saving electric energy, reducing damage to the equipment, and prolonging the service life of the entire foam cleaning assembly.

[0067] In a third aspect, the present invention provides a washing machine including the partial foam cleaning device described above. Effect of the Invention

[0068] By using the above technical solutions, the present invention has the following beneficial effects compared with the prior art:

[0069] 1. The signal transmission unit of the present invention can reflect the position information of the foam cleaning assembly, and reliably guarantee the opening or closing of the foam cleaning assembly at a predetermined position.

[0070] 2. The microswitch of the present invention can control the open / close state of the circuit of the foam cleaning assembly based on the location of the foam cleaning assembly, instead of manually opening the circuit of the foam cleaning assembly. This can save energy consumption and reduce the probability of erroneous start-up of the foam cleaning assembly. Furthermore, the step of opening the circuit by the user can be omitted, making it easier for the user to operate.

[0071] 3. When the foam cleaning assembly of the present invention is located at the cleaning position, the circuit of the foam cleaning assembly is reliably guaranteed to be open, which is convenient for partially cleaning the object to be cleaned. In addition, when the foam cleaning assembly is located at the storage position, the circuit is in an open state, which causes the foam detergent to be pushed out unexpectedly, which not only hinders the progress of cleaning, but also prevents the partial foam cleaning device itself and its surrounding environment from being polluted.

[0072] 4. The present invention further provides a switch unit for controlling the activation of the foam cleaning assembly, and the foam cleaning assembly is activated only when the switch unit is turned on while the circuit is open. This is at least equivalent to providing a double switch in the foam cleaning assembly, thereby reducing the probability of the foam cleaning assembly being erroneously triggered.

[0073] 5. The transmission assembly of the present invention can realize the switching of the foam cleaning assembly between the cleaning position and the storage position, so that the space of the washing machine is not occupied during the process of the washing program, and the washing function of the washing machine is not hindered. It can also protect the foam cleaning assembly after the foam cleaning assembly is stored. In addition, the storage process of the foam cleaning assembly is simplified, which is convenient for users to operate and use.

[0074] 6. The gear and rack of the present invention are meshed and connected, so that the power can be transmitted between the foam cleaning assembly and the casing, and the rotation of the gear can be converted into the linear motion of the rack to linearly move the foam cleaning assembly while ensuring the connection effect between the foam cleaning assembly and the casing.

[0075] 7. Two racks are provided on one side of the handle, and at least two gears are provided on the corresponding side of the receiving cavity, which are located between the two racks and are connected to the two racks respectively, thereby improving the stability of the partial foam washing device during its movement.

[0076] 8. The driving unit can realize automatic control of the foam cleaning assembly. In addition, the provision of two positioning wheels can ensure the stability and smoothness of the movement direction of the foam cleaning assembly, so that tilting does not occur and reliability is improved. The driving wheel transmits the driving force to one rack and the driven wheel respectively, and then to another rack via the driven wheel. That is, the driving force of the driving wheel can be transmitted to two racks. This allows the foam cleaning assembly to obtain sufficient driving force, which saves electrical energy.

[0077] Specific embodiments of the present invention will be described in more detail below in conjunction with the drawings.

[0078] The drawings are used as a part of the present invention for further understanding of the present invention. In addition, the schematic embodiments of the present invention and their explanations are used for the interpretation of the present invention, but do not unduly limit the present invention. It goes without saying that the drawings described below are only a part of the embodiments, and a person skilled in the art can obtain other drawings from these drawings without requiring creative labor. [Brief description of the drawings]

[0079] [Figure 1] FIG. 1 is a schematic structural diagram of a partial foam cleaning device according to a first embodiment of the present invention. [Diagram 2] FIG. 2 is a schematic structural diagram of a partial foam cleaning device according to a second embodiment of the present invention. [Diagram 3] FIG. 3 is a schematic structural diagram of a partial foam cleaning device according to a third embodiment of the present invention. [Figure 4] FIG. 4 is a schematic structural diagram of a partial foam cleaning device according to a fourth embodiment of the present invention. [Diagram 5] FIG. 5 is a schematic structural diagram of the partial foam cleaning device of the present invention when it is located at the cleaning position. [Figure 6] FIG. 6 is a schematic diagram of a partial foam cleaning device in one embodiment of the present invention when located at the cleaning position. [Figure 7] FIG. 7 is a schematic diagram of a partial foam cleaning device in another embodiment of the present invention when located at the cleaning position. [Figure 8] FIG. 8 is a schematic diagram of the partial foam cleaning device of the present invention when it is located at the storage position. [Figure 9] FIG. 9 is a schematic structural diagram of a portion of the partial foam cleaning device according to the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0080] It should be explained that these drawings and textual description are not intended to limit the scope of the inventive concepts in any way, but rather to illustrate the inventive concepts to those skilled in the art with reference to specific embodiments.

[0081] In order to make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the following will clearly and concisely describe the technical solutions of the embodiments in combination with the drawings in the embodiments of the present invention, which are for illustrating the present invention but are not intended to limit the scope of the present invention.

[0082] In the description of the present invention, it should be explained that the directions or positional relationships indicated by terms such as "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", and "outer" are directions or positional relationships based on the drawings, and are merely for the convenience and simplification of the description of the present invention, and do not explicitly or implicitly indicate that the target device or member has a specific direction and must be constructed and operated in a specific direction. Therefore, they should not be construed as limiting the present invention.

[0083] In the description of the present invention, the terms "attach", "connect" and "connect" should be interpreted broadly unless otherwise clearly specified and limited. For example, it may be a fixed connection, a removable connection, or an integral connection. It may also be a mechanical connection or an electrical connection. Furthermore, it may be a direct connection or an indirect connection via an intermediate medium. A person skilled in the art can interpret the specific meaning of the above terms in the present invention according to the specific situation.

[0084] As shown in Figures 1 to 9, the present invention provides a partial foam washing device. The partial foam washing device includes a casing 1 having a storage cavity, a foam washing assembly 2 connected to the casing 1 and movable relative to the casing 1, and used to supply foamy detergent at least during partial washing, 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.

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

[0086] Of course, the microswitch 6 may be connected to the foam cleaning assembly 2. When the foam cleaning assembly 2 reaches a predetermined position, the microswitch 6 is triggered to transmit the position of the foam cleaning assembly 2 to the partial foam cleaning device, so as to ensure 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 is in an inactivatable state. When the foam cleaning assembly 2 is not in the first predetermined position and / or is in the second predetermined position, the foam cleaning assembly 2 is in an activateable state.

[0087] Instead of manually opening the circuit of the foam cleaning assembly 2, the microswitch 6 of the present invention 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. This can reduce the probability of erroneous activation of the foam cleaning assembly 2 while saving energy consumption. Furthermore, since the step of the user opening the circuit can be omitted, it is easy for the user to operate.

[0088] The microswitch 6 may be manually controlled by a user. When the foam cleaning assembly 2 moves to the first predetermined position, the user manually triggers the microswitch 6 to transmit the position information to the partial foam cleaning device or to break the circuit, thereby making the foam cleaning assembly 2 in an inactivatable state. In addition, when the position of the foam cleaning assembly 2 needs to be changed, the user triggers the microswitch 6 again to transmit information that the foam cleaning assembly 2 is not located at the first predetermined position to the partial foam cleaning device or to open the circuit, thereby making the foam cleaning assembly 2 in an activateable state. Alternatively, when the foam cleaning assembly 2 moves in a predetermined direction and reaches a second predetermined position, the user triggers the microswitch 6 to transmit information that the foam cleaning assembly 2 is located at the second predetermined position to the partial foam cleaning device or to open the circuit, thereby making the foam cleaning assembly 2 in an activateable state.

[0089] The casing 1 has a storage cavity 10. The foam cleaning assembly 2 has a storage position and a cleaning position with respect to the casing 1. In the storage position, the foam cleaning assembly 2 is stored in the storage cavity 10 of the casing 1. In the cleaning position, the foam cleaning assembly 2 is located outside the storage cavity 10 of the casing 1. The microswitch 6 opens a circuit when the foam cleaning assembly 2 is located in the cleaning position, and opens a circuit when the foam cleaning assembly 2 is located in the storage position.

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

[0091] In this solution, when the foam cleaning assembly 2 is located at the cleaning position, the circuit of the foam cleaning assembly 2 is reliably guaranteed to be open, which is convenient for partially cleaning the object to be cleaned. In addition, when the foam cleaning assembly 2 is located at the storage position, the circuit is in an open state, which causes the assembly to start unexpectedly, and the foam detergent is pushed out, which not only hinders the progress of cleaning, but also prevents the partial foam cleaning device itself and its surrounding environment from being polluted.

[0092] Further, the microswitch 6 is provided on the casing 1 and / or the foam cleaning assembly 2. When the foam cleaning assembly 2 moves to the cleaning position and / or the storage position, the microswitch 6 is triggered and controls the circuit of the foam cleaning assembly 2 to be opened or closed.

[0093] In one embodiment, as shown in FIG. 1, the microswitch 6 is an open switch and is provided in the casing 1. One end of the casing 1 close to the opening of the casing 1 is a front end, and the microswitch 6 is provided in the front part of the casing 1. Preferably, the microswitch 6 is provided in the front wall of the receiving cavity 10. When the foam cleaning assembly 2 moves forward to the cleaning position, it collides or comes into contact with the microswitch 6. This activates the microswitch 6, and the circuit of the foam cleaning assembly 2 is opened. On the contrary, when the foam cleaning assembly 2 moves backward from the cleaning position, that is, when the foam cleaning assembly 2 moves toward the storing position, the foam cleaning assembly 2 is separated from the contact with the microswitch 6. This stops the microswitch 6, and the circuit of the foam cleaning assembly 2 is in an interrupted state.

[0094] As an alternative to the above solution, as shown in FIG. 2, the microswitch 6 is a cutoff switch and is provided at the rear of the casing 1. Preferably, the microswitch 6 is provided at the rear wall of the receiving cavity 10. When the foam cleaning assembly 2 is located at the receiving position, it collides or comes into contact with the microswitch 6. This activates the microswitch 6, and the foam cleaning assembly 2 is in a cutoff state. On the other hand, when the foam cleaning assembly 2 moves forward from the receiving position, i.e., toward the cleaning position, the foam cleaning assembly 2 is released from contact with the microswitch 6. This deactivates the microswitch 6, and the circuit of the foam cleaning assembly 2 is in an open state. do.

[0095] Of course, one microswitch 6 may be provided at the front and one at the rear of the casing 1 to function as an open switch and a cutoff switch, respectively. This can reliably ensure that the foam cleaning assembly 2 is stored in a predetermined position and released to the cleaning position, while further preventing the foam cleaning assembly 2 from being unexpectedly started up.

[0096] As an alternative to the above two methods, as shown in Figures 3 and 4, the microswitch 6 is composed of two parts: a fixed contact 61 provided on the casing 1, and a movable contact 62 provided on the foam cleaning assembly 2 and corresponding to the position of the fixed contact 61. When the foam cleaning assembly 2 moves with the movable contact 62 until it comes into contact with the fixed contact 61, the microswitch 6 is in a closed state, and controls the circuit of the foam cleaning assembly 2 to be interrupted or opened.

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

[0098] 3 and 4, the fixed contact 61 is provided on the inner wall of the receiving cavity 10 of the casing 1. The movable contact 62 is provided at a portion of the foam cleaning assembly 2 located within the receiving cavity 10. This solution can facilitate the contact and separation of the two contacts of the microswitch 6, and also protect the microswitch 6.

[0099] As shown in FIG. 6, the partial foam cleaning device of the present invention further includes a transmission assembly 3 connected to the casing 1 and the foam cleaning assembly 2 and transmitting power between the casing 1 and the foam cleaning assembly 2 to move the foam cleaning assembly 2 between the storage position and the cleaning position.

[0100] The transmission assembly 3 of the present invention can transmit power between the casing 1 and the foam cleaning assembly 2. This makes it easy to accommodate the foam cleaning assembly 2 and to partially clean an object to be cleaned by moving the foam cleaning assembly 2 to a cleaning position, making it easy for users to operate and use.

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

[0102] After use, the foam cleaning assembly 2 is moved from the outside of the casing 1 to the inside of 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 reciprocates to switch 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 at a portion of the bottom base 41 that is always located within the receiving cavity 10. According to this solution, the contact between the foam cleaning assembly 2 and the casing 1 can be reduced, so that the foam cleaning assembly 2 can be prevented from being impacted or worn, and the foam cleaning assembly 2 can be protected.

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

[0106] As an embodiment, as shown in FIG. 3, the fixed contact 61 and the 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 with each other to open the circuit of the foam cleaning assembly 2. 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 receiving 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 receiving cavity 10.

[0107] And / or, the fixed contact 61 and the 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 cutoff switch. When the foam cleaning assembly 2 is located at the storage position, the fixed contact 61 and the movable contact 62 come into contact with each other, and the circuit of the foam cleaning assembly 2 is cut off.

[0108] As a preferred solution, as shown in Fig. 4, two sets of micro switches 6 are provided, one set being an open switch and the other being a cutoff switch. The movable contact 62 of the open switch is provided on the bottom wall of the bottom base 41 and is adjacent 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 receiving 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 receiving cavity 10. The movable contact 62 of the cutoff 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 receiving cavity 10 and corresponds to the position of the movable contact 62.

[0109] In the first and second embodiments, the microswitch 6 is mounted on the bottom base 41. The bottom base 41 triggers the microswitch 6 by bringing the microswitch 6 into contact with the inner wall of the accommodating cavity 10. And / or the microswitch 6 is mounted on the inner wall of the accommodating cavity 10. The bottom base 41 moves to contact the microswitch 6, thereby triggering the microswitch 6.

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

[0111] Specifically, when the foam cleaning assembly 2 is in an energized state, the switch unit 7 can control the foam cleaning assembly 2 to be started to supply foam detergent, and can control the foam cleaning assembly 2 to be stopped to stop the supply of foam detergent.

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

[0113] When the switch unit 7 is a mechanical knob, it is provided on the foam cleaning 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] When the switch unit 7 is a sensing unit, the switch unit 7 is provided adjacent to the foam cleaning assembly 2 or belongs to a part of the foam cleaning assembly 2 and can be extended to the outside together with the foam cleaning assembly 2 and stored in the accommodating cavity 10.

[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 at least equivalent to providing a double switch in the foam cleaning assembly 2. In particular, when the switch unit 7 is a sensing unit, the sensing unit has a relatively high sensitivity. Therefore, for example, in the case of a temperature sensor or an infrared sensor, when a user approaches, it is easy for the sensor to receive a temperature or infrared signal and be erroneously triggered. Therefore, by providing the microswitch 6, the probability of the foam cleaning assembly 2 being erroneously triggered is reduced.

[0116] The transmission assembly 3 includes a first meshing unit connected to the casing 1 and a second meshing unit respectively connected to the foam cleaning assembly 2 and correspondingly meshing and connected to the first meshing unit. The second meshing unit cooperates with the first meshing unit to move the foam cleaning assembly 2 between the storage position and the cleaning position.

[0117] 6 to 8, the partial foam washing device of the present invention further includes a pull-tab part 4 connected to the foam washing assembly 2. The second interlocking unit is provided on the pull-tab part 4.

[0118] The partial foam cleaning device has a manual control structure, and the second interlocking unit is moved by pushing and pulling the handle 4. The first interlocking unit cooperates with the second interlocking unit to guide the movement of the foam cleaning assembly 2 between the storage position and the cleaning position.

[0119] When using the 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 moves the second interlocking unit connected to the handle 4 horizontally toward the outside of the casing 1 relative to the first interlocking unit.

[0120] When use is finished, the user presses the handle 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 interlocking unit connected to the handle 4 horizontally toward the inside of the casing 1 relative to the first interlocking unit.

[0121] In an alternative manner, the objective of switching the foam cleaning assembly 2 between the storage position and the cleaning position can be achieved automatically without manual operation by a user, thereby simplifying the operation for a user.

[0122] In particular, the partial foam cleaning device is an automatically controlled structure. The interlocking assembly shown here further includes a drive unit connected to the first interlocking unit and / or the second interlocking unit for moving the first interlocking unit and / or the second interlocking unit. The first interlocking unit cooperates with the second interlocking unit to guide the movement of the foam cleaning assembly 2 between the storage position and the cleaning position.

[0123] The pull handle 4 is an intermediate structure connecting the foam cleaning assembly 2 and the transmission assembly 3. The pull handle 4 moves the foam cleaning assembly 2. This prevents the foam cleaning assembly 2 from being directly connected to the transmission assembly 3, and prevents the foam cleaning assembly 2 from coming into contact with the first interlocking unit provided on the casing 1 during the movement and moving relative to it, which can result in the foam cleaning assembly 2 being worn. In addition, the provision of the pull handle 4 makes it easier for the user to manually push and pull the foam cleaning assembly 2.

[0124] In the case where the partial foam cleaning device has an automatic control structure, the pull tab 4 may not 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 to move the foam cleaning assembly 2 between the storage position and the cleaning position.

[0125] 6 and 7, the first meshing unit includes a gear provided in the casing 1, and the second meshing unit includes a rack 34 meshingly connected with the gear. The rack 34 is connected to the foam cleaning assembly 2 and moves therewith.

[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 forwards and backwards, thereby switching the movement of the foam cleaning assembly 2 relative to the casing 1 between the storage position and the cleaning position.

[0128] The gear and rack 34 of the present invention are meshed and connected to each other, thereby enabling the transmission of power between the foam cleaning assembly 2 and the casing 1. This allows the foam cleaning assembly 2 to move linearly while ensuring the connection effect between the foam cleaning assembly 2 and the casing 1.

[0129] As shown in FIGS. 6 and 7 , the pull-tab portion 4 includes the bottom base 41 and a connecting wall 43 .

[0130] The bottom base 41 is provided below the foam cleaning assembly 2, and has a perforated portion 42 at a 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 receiving cavity, and is located on the same side corresponding to the position of the rack 34.

[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 can move the foam cleaning assembly 2 between the storage position and the cleaning position by pushing and pulling the bottom base 41, which improves the stability during operation.

[0133] In addition, a perforated portion 42 is provided in the bottom base 41, allowing the water flow generated in the foam cleaning assembly 2 to flow out quickly, thereby preventing foam from collecting and adhering to the foam cleaning assembly 2 and causing problems such as clogging.

[0134] In one embodiment, the rack 34 is provided on both left and right side walls of the bottom base 41. The gear is provided in the receiving cavity and is located on both 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 along the vertical direction of the receiving cavity. The rack 34 is located above and / or below the gear and is meshed and connected with the gear in the vertical direction. This solution reduces the space occupied by the transmission assembly 3, so that the entire structure of the partial foam washing device becomes more compact.

[0136] 6 and 7, two racks 34 are provided on one side of the bottom base 41. The two racks 34 are provided in parallel with each other, with teeth facing each other. At least two gears are provided on that side of the receiving cavity, and are located between the two racks 34 and connected to the two racks 34, respectively.

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

[0138] When the foam cleaning assembly 2 is a manually controlled structure, two gears are provided, each of which is connected to two racks 34. There is a gap between the two gears, or the two gears are connected by meshing. Alternatively, at least three gears are provided, and two of the gears are connected to one of the racks 34 to form a positioning wheel 32. Each gear cooperates with the two racks 34 to determine the direction of movement of the foam cleaning assembly 2. Preferably, there is a gap between the two positioning wheels 32.

[0139] When the foam cleaning assembly 2 has an automatic control structure, the driving unit is provided in the casing 1 and is connected to one gear to rotate the gear. The gear is a driving wheel 31. The driving wheel 31 is connected to one rack 34. Two gears are provided, and the other gear is connected to the driving wheel 31 in meshing engagement and is connected to another rack 34 as a driven wheel 33. Alternatively, three gears are provided, and the remaining two gears are both connected to another rack 34 as a positioning wheel 32. The driving wheel and the positioning wheel 32 cooperate with the two racks 34, respectively, to determine the direction of the movement of the foam cleaning assembly 2. Preferably, there is a distance between the two positioning wheels 32.

[0140] In one embodiment, the drive unit is a motor.

[0141] When the foam cleaning assembly 2 is an automatic control structure, the transmission assembly 3 further includes a control switch 35 electrically connected to the driving unit for controlling the on / off of the driving unit. A user can manually control the on / off of the control switch 35. Alternatively, the control switch 35 is 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 a panel base of the washing machine, or on a control panel of the washing machine.

[0143] The driving unit of the present invention can realize automatic control of the foam cleaning assembly 2. In addition, the provision of two positioning wheels 32 can ensure the stability and smoothness of the movement direction of the foam cleaning assembly 2, so that tilting does not occur and reliability is improved.

[0144] In one embodiment, the distance between the two racks 34 is the minimum distance that can accommodate the driving wheel 31 and the positioning wheel 32. According to this embodiment, the foam cleaning assembly 2 can obtain sufficient driving force for movement with the minimum driving force of the driving device, thereby saving electric energy, reducing damage to the equipment, and extending the service life of the entire foam cleaning assembly 2.

[0145] The casing 1 is provided with a position restriction portion. Furthermore, a first positioning portion and a second positioning portion are provided on both front and rear ends of the pull-tab portion 4, respectively. The first positioning portion and the second positioning portion cooperate with the position restriction portion to realize movement of the foam cleaning assembly 2 within a predetermined range. This prevents the foam cleaning assembly 2 from coming off the casing 1 or from colliding inward with the rear wall of the casing 1.

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

[0147] The position restriction portion is provided with a tactile switch used to turn the motor on and off. When the first positioning portion or the second positioning portion comes into contact with the tactile switch, the switch is normally open or normally closed, so that the control panel can determine that the position of the foam cleaning assembly 2 is the storage or cleaning position. Pressing the control switch 35 once can directly turn the foam cleaning assembly 2 on or off. In other states, the power supply to the control circuit of the drive unit is cut off and the control circuit is stopped.

[0148] In addition, the state in which the motor rotates clockwise and the state in which the motor rotates counterclockwise are alternately changed in sequence by pressing the control switch 35. Pressing the control switch 35 once starts the clockwise rotation of the motor, and pressing it once again starts the counterclockwise rotation of the motor, and so on. When the control switch 35 is pressed first, the motor starts to operate, and the drive wheel 31 on the motor moves the rack 34 connected to the drive wheel 31 toward the outside of the casing 1. Then, when the foam cleaning assembly 2 is released to a certain position, the first positioning part comes into contact with the tact switch on the position regulating part to turn off the switch, and the foam cleaning assembly 2 stops operating. When the control switch 35 is pressed again, the motor starts to operate, and the drive wheel 31 on the motor moves the rack 34 connected to itself in the opposite direction. When the foam cleaning assembly 2 is closed to a certain position, the second positioning part contacts the tactile switch on the position restriction part to interrupt the control circuit, and the foam cleaning assembly 2 stops operating. As a result, the foam cleaning assembly 2 is closed at a 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 which is disposed at the opening of the storage cavity, has an upper end connected to the upper end of the opening, and closes the storage cavity when the foam cleaning assembly 2 is located in the storage position, and opens the opening of the casing 1 when the foam cleaning assembly 2 moves from the storage position to the outside.

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

[0151] The switch unit 7 is provided as one unit, and is a mechanical knob for controlling the on / off of the water discharge unit and the foam generation unit 23. The operation methods include the following: the switch unit 7 is triggered once to control the foam generation unit 23 to start, and then the switch unit 7 is triggered once again to control the foam generation unit 23 to stop. Also, the switch unit 7 is triggered twice in succession to control the water discharge unit to start, and then the switch unit 7 is triggered twice in succession again to control the water discharge unit to stop.

[0152] 5, two switch units 7 are provided, each of which is a mechanical knob and / or a sensing unit for controlling the on / off of the water discharge unit and the foam generation unit 23. In detail, when the switch unit 7 for controlling the water discharge unit is turned on, it controls the water discharge unit to discharge water. When the switch unit 7 for controlling the foam generation unit 23 is turned on, it controls the foam generation unit 23 to generate foamy detergent.

[0153] The foam generating unit 23 has a liquid discharge port 231 provided on a side of the foam generating unit 23 away from the rear wall of the containing cavity 10 and used for discharging foamy detergent.

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

[0155] When the switch unit 7 is a mechanical knob, it is provided on the housing 25, and the liquid 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 generation unit 23. Furthermore, by providing the switch unit 7 on the housing 25, contact with the foam generation unit 23 by the user can be reduced, so that the foam generation unit 23 is further protected.

[0156] 9, when the switch section 7 is a sensing unit, it can be provided below the housing 25 and covered by the housing 25. This reduces the probability that the sensing unit will be erroneously triggered, and also serves to protect the sensing unit.

[0157] 9, a housing 25 is also provided below the foam generation unit 23. The two housings 25 are located on both the upper and lower sides of the foam generation unit 23 and the switch section 7, respectively, and both are 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 generation unit 23 and the switch section 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 generation unit and a second sensing unit.

[0159] In detail, the water discharge unit is used to supply wash water during partial washing. The first sensing unit is used to trigger water discharge by the water discharge unit when clothes are detected. The foam generation unit is used to supply foam detergent during partial washing. The second sensing unit is used to trigger the foam generation unit to generate foam detergent when clothes are detected.

[0160] In the above solution, the foam generating unit and the water discharge unit for discharging detergent and water are respectively controlled by the sensor device to be activated. In the partial cleaning process, the process of wetting the clothes and the process of adding detergent may be alternated to improve the cleaning effect on some areas.

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

[0162] In the above solution, the foam generating unit and the second sensing unit are integrated into a housing, and only the bottom wall of the housing is provided with an outlet for detergent foam, which improves the overall appearance of the device and enhances the user experience.

[0163] Furthermore, since the outlet of the foam generating unit is located at a position farther away from the connecting wall 43 than the sensing end of the second sensing unit, it is possible to avoid a situation in which detergent foam starts to be discharged before the clothes reach the outlet of the foam generating unit.

[0164] In a further solution, the water discharge unit and the first sensing unit are integrally integrated, located below the housing, and retreated from the outlet of the foam generation unit and the sensing end of the second sensing unit.

[0165] In the above solution, the water discharge unit and the first sensing unit are integrally arranged, which similarly improves the appearance of the entire device and enhances the user experience.

[0166] In addition, by arranging the water discharge assembly and the detergent discharge assembly one above the other, the size of the partial foam washing device in the width direction can be reduced, which is advantageous for mounting the partial foam washing device on a structure such as a panel base of a washing machine.

[0167] As the above-mentioned retreat method, for example, the size of the water discharge unit and the first sensing unit may be made smaller than the size of the bubble generation unit and the second sensing unit.

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

[0169] The washing machine includes a housing, and a washing tub is provided in the housing. A panel base 5 having a clothes insertion port 51 is provided on the upper part of the housing. The partial foam washing device can be installed in the panel base 5. Preferably, the panel base 5 itself may serve as the casing 1.

[0170] The above description is merely a preferred embodiment of the present invention, and is not intended to limit the present invention in any form. Although the present invention has been disclosed above through a preferred embodiment, it is not intended to limit the present invention. Within the scope of the technical solution of the present invention, slight changes or modifications that can be made by a person skilled in the art using the technical content presented above are equivalently modified equivalent embodiments, and none of them deviate from the content of the technical solution of the present invention. In addition, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention all belong to the scope of the solution of the present invention. [Explanation of symbols]

[0171] 1 Casing 10. Storage Cavity 11 Door body 2 Foam Cleaning Assembly 23 Foam generating unit 231 Liquid spout 25 Housing 3 Transmission Assembly 31 Drive Wheel 32 Positioning wheel 33 Driven Wheel 34 Rack 35 Control Switch 4. Handle 41 Bottom Base 42 Watermark section 43 Connecting Wall 5 Panel Base 51 Clothes slot 6 Microswitch 61 Fixed contacts 62 Movable contact 7 Switch section

Claims

1. A partial foam cleaning device, A casing; a foam cleaning assembly connected to the casing and movable relative to the casing, the foam cleaning assembly being adapted to deliver foamy detergent during at least a partial clean; a signal transmission unit for transmitting a signal to the partial foam cleaning device when the foam cleaning assembly is moved to a predetermined position.

2. the signal transmission unit includes a microswitch, and the transmitted signal includes an electrical signal; The partial foam cleaning device according to claim 1, wherein the microswitch is electrically connected to the foam cleaning assembly and is capable of controlling the open / closed state of a circuit of the foam cleaning assembly based on the position of the foam cleaning assembly.

3. The casing has a receiving cavity; the foam cleaning assembly has a storage position and a cleaning position relative to the casing, in which the foam cleaning assembly is stored within a storage cavity of the casing in the storage position, and in which the foam cleaning assembly is located outside the storage cavity of the casing in the cleaning position; 3. The partial foam cleaning device according to claim 2, wherein the microswitch opens a circuit when the foam cleaning assembly is located at the cleaning position, and opens a circuit when the foam cleaning assembly is located at the storage position.

4. The microswitch is provided on the casing and / or the foam cleaning assembly, and when the foam cleaning assembly moves to the cleaning position and / or the storage position, the microswitch is triggered to control the opening or closing of a circuit of the foam cleaning assembly; Alternatively, the microswitch includes a fixed contact provided on the casing and a movable contact provided on the foam cleaning assembly corresponding to the position of the fixed contact, and when the foam cleaning assembly moves together with the movable contact until it comes into contact with the fixed contact, the partial foam cleaning device described in claim 3 is controlled to open or close the circuit of the foam cleaning assembly.

5. The microswitch is disposed within the receiving cavity, The partial foam cleaning device according to claim 4, characterized in that the fixed contact is preferably provided on an inner wall of the accommodating cavity of the casing, and the movable contact is provided at a portion of the foam cleaning assembly located within the accommodating cavity.

6. a bottom base is connected to a bottom of the foam cleaning assembly, and the bottom base reciprocates to switch the foam cleaning assembly between the storage position and the cleaning position; 6. The partial foam washing device according to claim 4, wherein the movable contact of the microswitch is provided on the bottom base.

7. One end of the casing on the opening side is the front end of the casing, and one end of the casing away from the opening is the rear end of the casing. One end of the foam cleaning assembly facing the front end of the casing is the front end of the foam cleaning assembly, and one end facing the rear end of the casing is the rear end of the foam cleaning assembly. The fixed contact and the 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 a cleaning position, the fixed contact and the movable contact are in contact with each other to open the circuit of the foam cleaning assembly. And / or a partial foam cleaning device as described in any one of claims 4 to 6, characterized in that the fixed contact and the movable contact of the microswitch are provided at the rear of the casing and the foam cleaning assembly, respectively, the microswitch is an interrupting switch, and when the foam cleaning assembly is located in the storage position, the fixed contact and the movable contact come into contact to interrupt the circuit of the foam cleaning assembly.

8. and a switch unit adapted to at least control the foam cleaning assembly to start dispensing foam detergent and control the foam cleaning assembly to stop dispensing foam detergent after the foam cleaning assembly receives a related signal, The partial foam cleaning device according to any one of claims 1 to 7, characterized in that the switch portion preferably includes a mechanical knob and / or a sensing unit.

9. The foam cleaning assembly comprises: A water discharge unit for supplying cleaning water during partial cleaning; a foam generating unit for supplying foamy detergent during partial cleaning; The switch unit is provided in one piece and is used to control the on / off of the water discharge unit and the foam generation unit, Alternatively, the partial foam cleaning device according to claim 8, characterized in that two switch units are provided, each of which is used to control the on / off of the water discharge unit and the foam generation unit.

10. a casing having a receiving cavity; a foam cleaning assembly having a storage position and a cleaning position relative to the casing, the foam cleaning assembly being stored within a storage cavity of the casing when in the storage position and being located outside the storage cavity of the casing when in the cleaning position; a transmission assembly connected to the casing and the foam cleaning assembly for transmitting power between the casing and the foam cleaning assembly to move the foam cleaning assembly between the stowed position and the cleaning position.

11. The transmission assembly includes: A first meshing unit connected to the casing; a second mating unit respectively connected to the foam cleaning assembly and correspondingly mated and connected to the first mating unit; The partial foam cleaning device of claim 10, wherein the second mating unit cooperates with the first mating unit to move the foam cleaning assembly between the stow position and the cleaning position.

12. Further, a pull part connected to the foam cleaning assembly, the second engagement unit being provided on the pull part, The pull tab is pushed and pulled to move the second mating unit, and the first mating unit cooperates with the second mating unit to guide the movement of the foam cleaning assembly between the storage 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, and the first meshing unit cooperates with the second meshing unit to guide the movement of the foam cleaning assembly between the storage position and the cleaning position. The partial foam cleaning device of claim 11,

13. The first meshing unit includes a gear provided in the casing, The partial foam cleaning device of claim 12, wherein the second meshing unit includes a rack meshingly connected with the gear, the rack being connected to a foam cleaning assembly for movement therewith.

14. The pull portion includes a bottom base, the bottom base is provided below the foam cleaning assembly, and a perforated portion is provided at a portion corresponding to the foam cleaning assembly to allow a water flow of the foam cleaning assembly to pass therethrough; The rack is provided on at least one side wall of the bottom base, The partial foam cleaning device according to claim 13, wherein the gear is provided in the receiving cavity and is located on the same side corresponding to the position of the rack.

15. The radial direction of the gear is aligned along the vertical direction of the receiving cavity, The partial foam cleaning device according to claim 14, characterized in that the rack is located above and / or below the gear and is connected to mesh with the gear in a vertical direction.

16. Two racks are provided on one side of the bottom base, the two racks are provided in parallel and have teeth facing each other, The partial foam cleaning device according to claim 15, characterized in that there are at least two gears provided on the side of the receiving cavity, which are located between the two racks and are respectively connected to the two racks.

17. The drive unit is provided in the casing and is connected to a gear to rotate the gear, the gear being a drive wheel, and the drive wheel is connected to a rack; The gears are provided in two numbers, and the other gear is a driven wheel that is meshed with and connected to the drive wheel and is joined to another rack, Alternatively, three gears are provided, and the remaining two gears are each joined with another rack to form a positioning wheel, and the driving wheel and the positioning wheel cooperate with the two racks, respectively, to determine the direction of the movement of the foam cleaning assembly; The partial foam cleaning device according to claim 16, characterized in that preferably there is a distance between the two positioning wheels.

18. 18. The partial foam cleaning device according to claim 17, wherein the distance between the two racks is the minimum distance capable of accommodating the drive wheel and the positioning wheel.

19. The foam cleaning assembly comprises: A water discharge unit for supplying cleaning water during partial cleaning; a foam generating unit for supplying foamy detergent during partial cleaning; The switch unit is provided as one unit and is used to control the on / off of the water discharge unit and the foam generation unit. Alternatively, the partial foam cleaning device of any one of claims 10 to 18 is characterized in that two switch units are provided, each of which is used to control the on / off of the water discharge unit and the foam generation unit.

20. A washing machine comprising the partial foam cleaning device according to any one of claims 1 to 19.

Images