Wet cleaning device

Abstract

The utility model discloses a wet-type cleaning device which comprises a cleaning solution supply system used for providing cleaning solution, and the cleaning solution supply system comprises a cleaning solution box and a shell used for being in butt joint with at least part of the cleaning solution box. The cleaning liquid box comprises a water outlet valve, and the shell comprises a liquid storage cavity in butt joint with at least part of the water outlet valve. The water outlet valve comprises a first channel, and a second channel is arranged in the liquid storage cavity; after the water outlet valve is connected into the liquid storage cavity in a butt joint mode, the first channel is communicated with the second channel, so that gas in the liquid storage cavity can flow through the second channel and the first channel and then enter the interior of the cleaning liquid box and / or the exterior of the cleaning liquid box. By arranging the first channel and the second channel, when the water pump assembly works, liquid in the liquid storage cavity can be effectively discharged, and the water pump assembly can work normally.

Description

Technical Field

[0001] The utility model relates to the technical field of cleaning equipment, in particular to a wet cleaning device. Background Art

[0002] Wet cleaning equipment generally includes a cleaning liquid supply system and a dirt recovery system. The cleaning liquid supply system includes a cleaning liquid tank and a water pump assembly. In order to achieve precise control of liquid delivery, the water pump assembly generally selects an electromagnetic pump, which generally supplies liquid in the form of a piston. In order to make cleaning more efficient, some users will add hot water with a relatively high temperature to the cleaning liquid tank. However, when hot water passes through the electromagnetic pump, the high temperature will affect the magnetic field, which in turn will affect the operation of the pump and make the water output unstable. In order to ensure the normal supply of hot water, a centrifugal pump can be used to transport the cleaning liquid. The centrifugal pump generally transports the fluid through the rotation of the impeller. However, when the centrifugal pump is first used, the gas in and around the impeller cavity cannot be discharged well, and the liquid cannot be pumped to the outlet by the centrifugal pump, especially when there is a large height difference between the outlet and the centrifugal pump. In this way, it is easy to fail to spray the liquid. Utility Model Content

[0003] In view of the deficiencies existing in the above-mentioned technologies, the utility model provides a wet cleaning device which can effectively solve the problem of no liquid coming out.

[0004] On the one hand, the utility model provides a wet cleaning device, comprising

[0005] A cleaning liquid supply system, for providing cleaning liquid, the cleaning liquid supply system comprising a cleaning liquid tank and a housing for docking at least a portion of the cleaning liquid tank;

[0006] The cleaning liquid tank includes a water outlet valve, and the housing includes a liquid storage cavity docked to at least a portion of the water outlet valve;

[0007] The water outlet valve includes a first channel, and a second channel is arranged in the liquid storage chamber; when the water outlet valve is docked into the liquid storage chamber, the first channel and the second channel are connected, so that the gas in the liquid storage chamber can enter the interior of the cleaning liquid tank or the outside of the cleaning liquid tank after flowing through the second channel and the first channel.

[0008] Optionally, the water outlet valve includes a valve stem, the valve stem has an open position and a closed position, and part of the first channel is arranged on the valve stem; a contact piece for moving the valve stem between the open position and the closed position is arranged in the liquid storage chamber, and at least part of the second channel is arranged on the contact piece.

[0009] Optionally, the second channel disposed on the contact member includes a first inlet and a first outlet, and the first inlet is disposed below the first outlet.

[0010] Optionally, the cleaning liquid supply system further includes a water pump assembly, and the water pump assembly includes:

[0011] A pump body, wherein the pump body defines the liquid storage chamber and an impeller chamber interconnected with the liquid storage chamber;

[0012] an impeller, at least partially disposed in the impeller cavity, the impeller being configured to draw the liquid in the liquid storage cavity into the impeller cavity and then transport it to the liquid outlet;

[0013] The motor comprises a drive shaft which is drivingly connected to the impeller and is used to provide power to the impeller.

[0014] Optionally, the first inlet is arranged in the liquid storage chamber or in the impeller chamber.

[0015] Optionally, in the communication channel between the liquid storage chamber and the impeller chamber, the first inlet is arranged in the liquid storage chamber and the first inlet is directly opposite to the communication channel.

[0016] Optionally, the pump body includes a first shell and a second shell, the first shell defines the liquid storage chamber, and the second shell and the first shell jointly define the impeller chamber.

[0017] Optionally, it further includes a motor housing for mounting the motor, the second housing is disposed between the motor housing and the first housing, and the motor housing cooperates with the first housing to mount the second housing to the first housing.

[0018] Optionally, the impeller includes a first impeller and a second impeller located downstream of the first impeller, and the first impeller is at least partially located in the communicating channel.

[0019] Optionally, between the axial center position of the second impeller and the position of the liquid outlet, the width of the impeller chamber gradually decreases along the liquid flow direction.

[0020] The utility model provides a wet cleaning device, which includes a cleaning liquid supply system for providing cleaning liquid, and the cleaning liquid supply system includes a cleaning liquid tank and a shell for docking at least a part of the cleaning liquid tank. The cleaning liquid tank includes a water outlet valve, and the shell includes a liquid storage chamber docked with at least a part of the water outlet valve. The water outlet valve includes a first channel, and a second channel is arranged in the liquid storage chamber; when the water outlet valve is docked in the liquid storage chamber, the first channel and the second channel are connected, so that the gas in the liquid storage chamber can enter the inside of the cleaning liquid tank or the outside of the cleaning liquid tank after flowing through the second channel and the first channel. By setting the first channel and the second channel, when the water pump assembly is working, the liquid in the liquid storage chamber can be effectively discharged, so that the water pump assembly can work normally. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of a fabric cleaning machine in one embodiment of the utility model;

[0022] Figure 2 is a schematic structural diagram of a sweeping robot in another embodiment;

[0023] Figure 3 It is a structural schematic diagram of a floor scrubber in another embodiment;

[0024] Figure 4 for Figure 1 The cross-sectional view along the AA direction;

[0025] Figure 5 for Figure 4 A magnified view of the structure shown in region C;

[0026] Figure 6 is a cross-sectional view of a cleaning liquid tank along a height direction in one embodiment;

[0027] Figure 7 for Figure 6 A magnified view of the structure shown in region D;

[0028] Figure 8 is a structural diagram of a water pump assembly in one embodiment;

[0029] Fig. 9 is a cross-sectional view of the water pump assembly along the axial direction;

[0030] Fig.10 is a structural exploded view of a water pump assembly in one embodiment;

[0031] Fig.11 for Fig. 9 A magnified view of the structure in the middle E region;

[0032] Fig.12 is a schematic structural diagram of an impeller in one embodiment;

[0033] Fig.13 is a schematic structural diagram of a first shell in one embodiment;

[0034] Fig.14 for Fig.13 Cross-sectional view along the BB direction. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0036] It should be noted that if a directional indication is involved in the embodiments of the present invention, the directional indication is only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0037] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0038] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood by specific circumstances.

[0039] refer to Figure 1-3 , the figure discloses a wet cleaning device 100, the wet cleaning device 100 can be a fabric cleaning machine (refer to Figure 1)、Sweeping robot (reference Figure 2 ) and floor scrubbers (reference Figure 3 ) and other cleaning equipment. The following mainly takes the fabric cleaning machine as an example to introduce this application in detail. Figure 1 The wet cleaning device 100 generally includes a cleaning liquid supply system. The cleaning liquid supply system is used to provide cleaning liquid to the roller brush and / or the surface to be cleaned, and the cleaning liquid supply system includes a cleaning liquid tank 1 and a shell for docking at least part of the cleaning liquid tank 1. The shell can be a part of the device housing 2, or a part of other structures. In order to facilitate the filling of cleaning liquid, the cleaning liquid tank 1 is generally detachably mounted on the shell of the cleaning device. The cleaning liquid supply system also includes a water pump assembly 6, which includes a pump body 61, an impeller 62 and a motor 63. The pump body 61 defines a liquid storage chamber 64 and an impeller chamber 65 interconnected with the liquid storage chamber 64. The impeller 62 is at least partially disposed in the impeller chamber 65, and the impeller 62 is configured to suck the liquid in the liquid storage chamber 64 into the impeller chamber 65 and then transport it to the liquid outlet (reference Fig. 9 ). The motor 63 includes a drive shaft, which is in driving connection with the impeller 62 and is used to provide power for the impeller 62. The wet cleaning device 100 generally also includes a dirt recovery system, which is used to recover dirt on the surface to be cleaned and / or the roller brush. The dirt recovery system generally includes a suction motor and a recovery box, and the airflow generated by the suction motor recovers the dirt into the recovery box. Since the dirt recovery system is a relatively conventional technology, the specific working principle will not be described in detail.

[0040] refer to Figure 4-7, the cleaning liquid tank 1 includes a water outlet valve 5, and the shell includes a liquid storage chamber 64 docked to at least part of the water outlet valve 5. The water outlet valve 5 includes a first channel 3, and a second channel 4 is provided in the liquid storage chamber 64. When the water outlet valve 5 is docked in the liquid storage chamber 64, the first channel 3 and the second channel 4 are connected, so that the gas in the liquid storage chamber 64 can enter the inside and / or the outside of the cleaning liquid tank 1 after flowing through the second channel 4 and the first channel 3. When the user uses it for the first time or starts to use it after not being used for a long time, because there is no liquid in the liquid storage chamber 64, after the cleaning liquid tank 1 is placed in the shell, the water outlet valve 5 is docked to the liquid storage chamber. At this time, if there is no channel, the gas in the liquid storage chamber 64 can only be discharged to the position of the liquid outlet through the pipeline. In this case, there is a high probability that the gas cannot be discharged and is blocked in the liquid storage chamber 64, which causes the liquid to be unable to be discharged normally from the liquid outlet, and cannot provide cleaning liquid for the surface to be cleaned or the cleaning head. In order to allow the gas to be discharged smoothly, the first channel 3 and the second channel 4 are added. After the cleaning liquid tank 1 is docked to the shell, the liquid storage chamber 64 is connected to the inside and / or the outside of the cleaning liquid tank 1 through the first channel 3 and the second channel 4. In this way, when the water pump is working, the gas in the liquid storage chamber 64 can be quickly discharged into the cleaning liquid tank 1 or outside the machine, and the liquid can quickly fill the liquid storage chamber 64 and the impeller chamber 65, and then be transported to the cleaning liquid outlet. A filtering structure can also be provided in the liquid storage chamber 64, which filters the liquid to prevent large particles from entering the water pump.

[0041] refer to Figure 5 and Figure 7 In one embodiment, the outlet valve 5 includes a valve stem 51. The valve stem 51 has an open position and a closed position, and part of the first channel 3 is disposed on the valve stem 51. The liquid storage chamber 64 is provided with a valve stem 51 for opening the valve stem 51 in the open position (refer to Figure 5 ) and closed position (reference Figure 7 ), at least part of the second channel 4 is arranged on the contact member 52. The water outlet valve 5 also includes a sealing structure 55 and an elastic structure 56 arranged on the valve stem 51. The water outlet valve 5 has an open position and a closed position, and the valve stem 51 is installed in the water outlet channel. When the water outlet valve 5 is in the open position, the sealing structure 55 is away from the water outlet channel, and at this time, the cleaning liquid can flow out from the water outlet channel. When the water outlet valve 5 moves from the open position to the closed position, the valve stem 51 is displaced under the action of the elastic structure 56, and at the same time drives the sealing structure 55 to be displaced, and the sealing structure 55 seals the water outlet channel.

[0042] Continue to refer Figure 5The second channel 4 provided on the contact member 52 includes a first inlet 53 and a first outlet 54, and the first inlet 53 is provided below the first outlet 54. The first inlet 53 is provided in the liquid storage chamber 64 or in the impeller chamber 65. In the communication channel 66 between the liquid storage chamber 64 and the impeller chamber 65, the first inlet 53 is provided in the liquid storage chamber 64 and the first inlet 53 is directly opposite to the communication channel 66. In this arrangement, when the water pump starts to work, the gas in the impeller chamber 65 can quickly enter the second channel 4.

[0043] In other embodiments, the second channel 4 is not arranged on the contact member 52, and the first channel 3 is not arranged on the valve stem 51. The first channel 3 and the second channel 4 are arranged on separate structures, and it is only necessary to ensure that the first channel 3 and the second channel 4 can conduct the liquid storage chamber 64 and the cleaning liquid chamber. The second channel 4 includes a first inlet 53 and a first outlet 54, and the first inlet 53 is arranged below the first outlet 54. The first inlet 53 is arranged in the liquid storage chamber 64 or in the impeller chamber 65. In the connecting channel 66 between the liquid storage chamber 64 and the impeller chamber 65, the first inlet 53 is arranged in the liquid storage chamber 64 and the first inlet 53 is directly opposite to the connecting channel 66. In this arrangement, when the water pump starts to work, the gas in the impeller chamber 65 can quickly enter the second channel 4.

[0044] refer to Figure 8-14 The pump body 61 includes a first housing 611 and a second housing 612. The first housing 611 defines a liquid storage chamber 64. The second housing 612 and the first housing 611 together define an impeller chamber 65. The water pump assembly 6 also includes a motor housing 67 for mounting the motor 63. The second housing 612 is disposed between the motor housing 67 and the first housing 611. The motor housing 67 cooperates with the first housing 611 to mount the second housing 612 to the first housing 611. The first housing 611 and the second housing 612 are sealed by a sealing ring.

[0045] refer to Fig.11 and 12 The impeller 62 includes a first impeller 621 and a second impeller 622 located downstream of the first impeller 621. The first impeller 621 is at least partially located in the connecting channel 66. The radius of the first impeller 621 is much smaller than the radius of the second impeller 622. The first impeller 621 mainly functions to quickly discharge the gas in the liquid storage chamber 64. The second impeller 622 mainly functions to pump the liquid to the liquid outlet. In order to further increase the gas discharge speed, the distance of the connecting channel 66 is as small as possible.

[0046] Between the axial center position of the second impeller 622 and the position of the liquid outlet, the width of the impeller chamber 65 gradually decreases along the liquid flow direction. This arrangement can effectively increase the flow rate of the liquid.

[0047] Although the implementation scheme of the utility model has been disclosed as above, it is not limited to the applications listed in the specification and implementation scheme. It can be fully applied to various fields suitable for the utility model. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the utility model is not limited to the specific details and the illustrations shown and described here.

Claims

1. A wet cleaning device, characterized in that: include: A cleaning liquid supply system, for providing cleaning liquid, the cleaning liquid supply system comprising a cleaning liquid tank and a housing for docking at least a portion of the cleaning liquid tank; The cleaning liquid tank includes a water outlet valve, and the housing includes a liquid storage cavity docked to at least a portion of the water outlet valve; The water outlet valve includes a first channel, and a second channel is arranged in the liquid storage chamber; when the water outlet valve is docked into the liquid storage chamber, the first channel and the second channel are connected, so that the gas in the liquid storage chamber can enter the interior of the cleaning liquid tank or the outside of the cleaning liquid tank after flowing through the second channel and the first channel.

2. The wet cleaning device according to claim 1, characterized in that The water outlet valve includes a valve stem, which has an open position and a closed position, and part of the first channel is arranged on the valve stem; a contact piece for moving the valve stem between the open position and the closed position is arranged in the liquid storage cavity, and at least part of the second channel is arranged on the contact piece.

3. The wet cleaning device according to claim 2, characterized in that: The second channel disposed on the contact member includes a first inlet and a first outlet, and the first inlet is disposed below the first outlet.

4. The wet cleaning device according to claim 3, characterized in that: The cleaning liquid supply system also includes a water pump assembly, and the water pump assembly includes: A pump body, wherein the pump body defines the liquid storage chamber and an impeller chamber interconnected with the liquid storage chamber; an impeller, at least partially disposed in the impeller cavity, the impeller being configured to draw the liquid in the liquid storage cavity into the impeller cavity and then transport it to the liquid outlet; The motor comprises a drive shaft which is drivingly connected to the impeller and is used to provide power to the impeller.

5. The wet cleaning device according to claim 4, characterized in that: The first inlet is arranged in the liquid storage cavity or in the impeller cavity.

6. The wet cleaning device according to claim 4, characterized in that: A communication channel is provided between the liquid storage chamber and the impeller chamber, and the first inlet is provided in the liquid storage chamber and faces the communication channel.

7. The wet cleaning device according to claim 5, characterized in that: The pump body includes a first shell and a second shell. The first shell defines the liquid storage chamber. The second shell and the first shell together define the impeller chamber.

8. The wet cleaning device according to claim 7, characterized in that: It also includes a motor housing for installing the motor, the second housing is arranged between the motor housing and the first housing, and the motor housing cooperates with the first housing to install the second housing to the first housing.

9. The wet cleaning device according to claim 6, characterized in that: The impeller includes a first impeller and a second impeller located downstream of the first impeller, and the first impeller is at least partially located in the communication channel.

10. The wet cleaning device according to claim 9, characterized in that Between the axial center position of the second impeller and the position of the liquid outlet, the width of the impeller cavity gradually decreases along the liquid flow direction.

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