Recovery box and surface cleaning device

Abstract

Disclosed in the present invention are a recovery box and a surface cleaning device. The recovery box comprises a housing, wherein the housing defines a receiving space for receiving detritus, the receiving space comprising a first space and a second space located below the first space, and the housing further defines an opening for dumping detritus. The recovery box further comprises an anti-backflow structure disposed between the first space and the second space, wherein the anti-backflow structure comprises a flow-through channel and an anti-backflow component disposed at the flow-through channel; and the anti-backflow component is configured to allow a liquid in the first space to flow into the second space through the flow-through channel, and is configured to prevent at least some of the liquid in the second space from flowing back into the first space through the flow-through channel. By providing the anti-backflow structure in the recovery box, and when the recovery box is lying flat, a liquid in the second space can be effectively prevented from flowing back into the first space, thereby reducing the generation of water vapor in the first space.

Description

Recycling bins and surface cleaning equipment Technical Field

[0001] The present invention relates to the technical field of cleaning equipment, and in particular to a recycling box and surface cleaning equipment. Background Art

[0002] Floor scrubbers typically include a dirt recovery system, where a recycling bin collects dirt. Conventional floor scrubbers typically operate at an angle to the surface being cleaned, rather than being level with the ground. This arrangement effectively prevents wastewater from the recycling bin from backflowing into the suction motor, potentially causing irreversible damage.

[0003] However, the body of the floor scrubber has a certain angle relative to the ground and cannot be basically level, so it cannot clean under the bed or sofa, which has certain limitations. Summary of the Invention

[0004] In response to the shortcomings of the above-mentioned technologies, the present invention provides a recycling box and a surface cleaning device, which can reduce the amount of liquid sucked into the wet-dry motor even when the recycling box is in a horizontal position, thereby increasing the usage scenarios of the device.

[0005] In one aspect, the present invention provides a recycling box comprising

[0006] a housing defining a storage space for storing dirt, the storage space comprising a first space and a second space located below the first space, and the housing further defining an opening for dumping the dirt;

[0007] an anti-backflow structure disposed between the first space and the second space, the anti-backflow structure comprising a circulation channel and an anti-backflow component disposed at the circulation channel;

[0008] The backflow prevention component is configured to allow liquid in the first space to flow into the second space through the circulation channel, and is configured to prevent at least a portion of the liquid in the second space from flowing back into the first space through the circulation channel.

[0009] Optionally, the backflow prevention component includes a baffle, and the baffle is pivotally arranged at the circulation channel.

[0010] Optionally, the backflow prevention component includes a support plate, the circulation channel is opened on the support plate, and a switch structure is provided at the circulation channel, and the switch structure is configured to close the circulation channel or reduce the flow area of ​​the circulation channel.

[0011] Optionally, a filter screen for solid-liquid separation is further included and is arranged in the first space, wherein the filter screen is located upstream of the backflow prevention component.

[0012] Optionally, the filter screen can be pivoted relative to the backflow prevention component to clean off solid dirt deposited on the filter screen.

[0013] Optionally, at least a portion of the outer periphery of the support plate is in sealing contact with the inner wall of the recovery box.

[0014] Optionally, when the recovery box is in a horizontal position, the outer periphery of the lower half of the support plate is in sealing contact with the inner wall.

[0015] On the other hand, the present invention also provides a surface cleaning device, comprising

[0016] The dirt recovery system includes a suction motor for generating a suction airflow, wherein the suction airflow is used to recover the dirt into the above-mentioned recovery box.

[0017] Optionally, a cleaning liquid supply system is further included, wherein the cleaning liquid supply system includes a cleaning liquid tank, and the cleaning liquid tank and the recovery tank are integrally formed.

[0018] Optionally, when the body of the surface cleaning device is substantially level with the surface to be cleaned, the cleaning liquid tank is located directly above the recovery tank.

[0019] The present invention provides a recycling box and a surface cleaning device. The recycling box includes a shell, the shell defines a storage space for storing dirt, the storage space includes a first space and a second space located below the first space, and the shell further defines an opening for dumping the dirt. The recycling box also includes an anti-backflow structure arranged between the first space and the second space, the anti-backflow structure includes a circulation channel and an anti-backflow component arranged at the circulation channel; the anti-backflow component is configured to allow liquid in the first space to flow into the second space through the circulation channel, and is configured to prevent at least part of the liquid in the second space from flowing back into the first space through the circulation channel. Providing an anti-backflow structure in the recycling box can effectively prevent the liquid in the second space from flowing back into the first space when the recycling box is in a flat state, thereby reducing the generation of water vapor in the first space. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] FIG1 is a schematic structural diagram of a surface cleaning device in an upright position according to an embodiment of the present invention;

[0021] FIG2 is a schematic structural diagram of a surface cleaning device in a lying position according to an embodiment of the present invention;

[0022] FIG3 is a schematic structural diagram of a recycling box in one embodiment;

[0023] FIG4 is a schematic cross-sectional view of the recycling box shown in FIG3 ;

[0024] FIG5 is an enlarged view of the structure of area A in FIG4 ;

[0025] FIG6 is a schematic diagram of the structure of the recycling box when it is in a tilted state;

[0026] FIG7 is an enlarged view of the structure of area B in FIG6;

[0027] FIG8 is a schematic diagram of the structure of the recycling box when it is in a flat state;

[0028] FIG9 is an enlarged view of the structure of the F area in FIG8 ;

[0029] FIG10 is a schematic structural diagram of a gas-liquid separator in one embodiment;

[0030] FIG11 is a schematic structural diagram of the gas-liquid separator from another angle;

[0031] FIG12 is a schematic structural diagram of an anti-backflow structure in one embodiment;

[0032] FIG13 is an enlarged view of the structure of area C in FIG12;

[0033] FIG14 is a schematic structural diagram of a baffle of an anti-backflow structure in an embodiment in an open state;

[0034] FIG15 is an enlarged view of the structure of area D in FIG14;

[0035] FIG16 is a schematic diagram of the structure of the filter after rotation in one embodiment;

[0036] FIG17 is an enlarged view of the structure of area E in FIG16 . DETAILED DESCRIPTION

[0037] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0038] It should be noted that if a directional indication is involved in an embodiment 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.

[0039] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the meaning of "and / or" appearing throughout the text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme in which A and B are satisfied at the same time. 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 mutually 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 present invention.

[0040] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0041] Figure 1 is a schematic diagram of the structure of a surface cleaning device in an upright position according to an embodiment of the present invention. Figure 2 is a schematic diagram of the structure of a surface cleaning device in a horizontal position according to an embodiment of the present invention. Figure 3 is a schematic diagram of the structure of a recycling bin in an embodiment. Figure 4 is a schematic cross-sectional view of the recycling bin shown in Figure 3. Figure 5 is an enlarged view of the structure of area A in Figure 4. Figure 6 is a schematic diagram of the structure of the recycling bin in an inclined position. Figure 7 is an enlarged view of the structure of area B in Figure 6. Figure 8 is a schematic diagram of the structure of the recycling bin in a horizontal position. Figure 9 is an enlarged view of the structure of area F in Figure 8. Figure 10 is a schematic diagram of the structure of a gas-liquid separator in an embodiment. Figure 11 is a schematic diagram of the structure of the gas-liquid separator from another angle. Figure 12 is a schematic diagram of the structure of a backflow prevention structure in an embodiment. Figure 13 is an enlarged view of the structure of area C in Figure 12. Figure 14 is a schematic diagram of the structure of a backflow prevention structure in an embodiment with the baffle in an open position. Figure 15 is an enlarged view of the structure of area D in Figure 14. Figure 16 is a schematic diagram of the structure of a filter screen after rotation according to an embodiment. Figure 17 is an enlarged view of the structure of area E in Figure 16. 1 and 2 , the present application discloses a surface cleaning device 101, which includes a body 10 and a handle 20 and a floor brush 30 respectively located at both ends of the body 10. The surface cleaning device 101 generally includes a cleaning liquid supply system, and the cleaning liquid supply system includes a cleaning liquid tank 3, which can spray cleaning liquid onto the wiping piece and / or the surface to be cleaned. The device also includes a dirt recovery system, and the dirt recovery system generally includes a recovery box 1 and a suction motor. The suction motor is used to generate a suction airflow to recover dirt from the surface to be cleaned into the recovery box 1. In order to ensure that the surface cleaning device 101 is in a flat state, the recovery box 1 can still be used, and when in use, a large amount of liquid in the recovery box 1 will not be sucked into the suction motor. The present application has made certain improvements to the structure of the recovery box 1.

[0042] Referring to Figures 3-17, the recycling box 1 includes a shell 11, which defines a storage space for storing dirt. The storage space includes a first space 111 and a second space 112 located below the first space 111. The shell 11 also defines an opening for dumping dirt. The recycling box 1 includes a liquid inlet pipe 17, through which dirt enters the storage space of the recycling box 1. The recycling box 1 also includes an anti-backflow structure arranged in the shell 11 (refer to Figures 4 and 5). Generally, the anti-backflow structure is arranged between the first space 111 and the second space 112. When the shell 11 is upright, the space above the anti-backflow structure is the first space 111, and the space below the anti-backflow structure is the second space 112. The anti-backflow structure includes a circulation channel 13 and an anti-backflow component 12 arranged at the circulation channel 13. The circulation channel 13 is used to connect the first space 111 and the second space 112. The dirt entering through the liquid inlet pipe 17 is separated into gas and liquid in the first space 111. The liquid and / or solid after gas-liquid separation can pass through the circulation channel 13 into the second space 112. The second space 112 is generally used to store dirt. In order to prevent the liquid in the second space 112 from returning to the space in large quantities when the recovery box 1 is in a flat or substantially flat state, causing a large amount of water splashing in the first space 111 and causing a large amount of water vapor to be carried into the suction motor by the suction airflow, the anti-backflow component 12 has the following configuration: the anti-backflow component 12 is configured to allow the liquid in the first space 111 to flow into the second space 112 through the circulation channel 13, and is configured to prevent at least part of the liquid in the second space 112 from flowing back into the first space 111 through the circulation channel 13. In this way, when the recovery box 1 is in a flat position, it can effectively prevent the liquid from flowing back into the first space 111. Specifically, there are many structures that can realize the functions of the anti-backflow component 12, for example: a one-way valve can be set in the circulation channel 13, or the circulation channel 13 can be opened or closed by moving a spherical object (here and below, "closing the circulation channel 13" does not mean complete sealing, but only preventing most of the fluid from flowing from the second space 112 to the first space 111). Other feasible methods that technicians can think of are not described here. Referring to the figure, in order to make the structure simpler and the circulation channel 13 less likely to be blocked by relatively large dirt, the anti-backflow component 12 includes a baffle 121, which is pivotally arranged at the circulation channel 13. The baffle 121 can be arranged so as not to close the circulation channel 13 when upright, for example, by using a rotating shaft to set the baffle 121 at the circulation channel 13, and under the action of gravity, the baffle 121 can be in an open state. When the recovery box 1 is in a tilted state, the baffle 121 can slowly approach the circulation channel 13. When the recovery box 1 is lying flat, the baffle 121 basically closes the circulation channel 13. Especially when there is liquid in the second space 112, the liquid in the second space 112 will generate pressure on the baffle 121 to further close the circulation channel 13.Of course, the baffle 121 can also be configured to always keep the flow channel 13 in a closed state in the absence of external forces. When liquid exists in the first space 111, the baffle 121 can open under the action of the gravity of the liquid, allowing the liquid to flow into the second space 112. Specifically, the baffle 121 can be a baffle made of a rubber material, which can automatically reset due to the elasticity of the rubber.

[0043] Referring to Figures 12-17, in a specific embodiment, the backflow prevention component 12 includes a support plate 122, which defines a receiving groove 123. A flow channel 13 is formed on the support plate 122, and a switch structure is provided at the flow channel 13. The switch structure is configured to close the flow channel 13 or reduce the flow area of ​​the flow channel 13. The switch structure can be the baffle 121 described above, or a one-way valve or similar structure, which will not be described in detail here. The focus of this description is on the support plate 122, which serves to support the switch structure. The support plate 122 can also be provided with a filter 14. The filter 14 is disposed in the first space 111 for solid-liquid separation, and the filter 14 is located upstream of the backflow prevention component 12. Furthermore, the filter 14 can also be disposed in the receiving groove 123. In this way, some larger particles are less likely to enter the second space 112. Furthermore, the filter screen 14 can be pivoted relative to the backflow prevention component 12 to clean off solid dirt deposited on the filter screen 14 .

[0044] To further prevent the liquid in the second space 112 from flowing back into the first space 111, at least part of the outer periphery of the support plate 122 is in sealed contact with the inner wall of the recycling box 1. A circle or half a circle of sealing gasket 18 can be provided on the outer periphery of the support plate 122. The sealing gasket 18 has an interference fit with the inner wall of the recycling box 1, effectively preventing liquid backflow. Since the volume of the recycling box will be fully utilized, when the recycling box is in a horizontal position, the outer periphery of the lower half of the support plate 122 is in sealed contact with the inner wall. The upper half of the support plate 122 can have a gap with the inner wall of the recycling box 1. In this way, when the recycling box is not in a flat position, the water in the first space 111 can be accelerated to flow to the second space 112.

[0045] Referring to Figures 10 and 11, a mounting bracket 15 is provided at the opening of the recovery box 1, and the mounting bracket 15 is used to install the filter Hepa 151 and the conductive detector 152. The mounting bracket 15 is also defined with a connecting port 168, and the airflow after gas-liquid separation passes through the first space 111, the flow port, the filter Hepa 151 in sequence and then flows out of the recovery box 1. The function of the conductive detector 152 is to sense whether the liquid in the recovery box 1 has reached a preset liquid level. When the liquid level reaches the preset liquid level, the conductive detector 152 is turned on and an alarm signal is issued. In order to further improve the gas-liquid separation efficiency, the first space 111 is also provided with a gas-liquid separator 16 for gas-liquid separation of dirt. The gas-liquid separator 16 includes a U-shaped baffle 161 and an arc-shaped guide plate 162 provided at one end of the U-shaped baffle 161. The curved guide plate 162 includes a closed section 163 and an open section 164. The closed section 163 is used to seal the upper end of the curved guide plate 162, and the open section 164 is located on the side of the opening 169 of the U-shaped baffle. The curved guide plate 162 is provided with multiple guide grooves 165, which are used to disperse and guide the fluid flowing out of the outlet of the liquid inlet pipe 17. Without the guide grooves 165, the fluid would rush onto the flat surface of the guide plate, splashing the liquid and generating a large amount of water vapor. Before the water vapor can gather into droplets, it is carried away by the airflow to the connecting port 168. Once a large amount of water vapor is sucked into the motor, it will affect the motor's service life. At the same time, a large amount of water vapor will also be collected by the filter 151, which is prone to generating odor. Similarly, there is no gap between two adjacent guide grooves 165. This effectively ensures that when the recovery box 1 is in a flat position, the airflow after gas-liquid separation flows directly to the connecting port 168 located on the mounting frame 15, avoiding the formation of a large amount of water spray. The liquid gathers along the guide groove 165 and flows to a position away from the communication port 168 to avoid being blown away by the air flow.

[0046] Referring to Figure 8 , the cleaning liquid tank 3 and the recovery tank 1 can be integrally formed. This allows the user to remove the recovery tank 1 along with the cleaning liquid tank 3, allowing the user to refill the cleaning liquid tank 3 while cleaning the recovery tank 1. When the body 10 of the surface cleaning device 101 is substantially level with the surface to be cleaned, the cleaning liquid tank 3 is positioned directly above the recovery tank 1.

[0047] Although the embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the description and implementation methods. They can be fully applied to various fields suitable for the present invention. 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 present invention is not limited to the specific details and illustrations shown and described herein.

Claims

1. A recycling box (1), characterized in that: include: A housing (11) defines a storage space for storing dirt, the storage space comprising a first space (111) and a second space (112) located below the first space (111), and the housing (11) further defines an opening for dumping dirt; an anti-backflow structure disposed between the first space (111) and the second space (112), the anti-backflow structure comprising a circulation channel (13) and an anti-backflow component (12) disposed at the circulation channel (13); The backflow prevention component (12) is configured to allow liquid in the first space (111) to flow into the second space (112) through the circulation channel (13), and is configured to prevent at least part of the liquid in the second space (112) from flowing back into the first space (111) through the circulation channel (13).

2. The recycling box (1) according to claim 1, characterized in that: The backflow prevention component (12) comprises a baffle (121), and the baffle (121) is pivotally arranged at the circulation channel (13).

3. The recycling box (1) according to claim 1, characterized in that: The backflow prevention component (12) comprises a support plate (122), the support plate (122) being provided with the circulation channel (13), the circulation channel (13) being provided with a switch structure, the switch structure being configured to close the circulation channel (13) or reduce the circulation area of ​​the circulation channel (13).

4. The recycling box (1) according to any one of claims 1 to 3, characterized in that: It also includes a filter screen (14) for solid-liquid separation, which is arranged in the first space (111), and the filter screen (14) is located upstream of the backflow prevention component (12).

5. The recycling box (1) according to claim 4, characterized in that: The filter screen (14) can be pivoted relative to the backflow prevention component (12) to clean off solid dirt deposited on the filter screen (14).

6. The recycling box (1) according to claim 3, characterized in that: At least a portion of the outer periphery of the support plate (122) is in sealing contact with the inner wall of the recovery box (1).

7. The recycling box (1) according to claim 3, characterized in that: When the recovery box (1) is in a horizontal position, the outer periphery of the lower half of the support plate (122) is in sealing contact with the inner wall.

8. A surface cleaning device (101), characterized in that: include A dirt recovery system, comprising a suction motor for generating a suction airflow, wherein the suction airflow is used to recover the dirt into a recovery box (1) as described in any one of claims 1 to 7.

9. The surface cleaning device (101) according to claim 8, characterized in that It also comprises a cleaning liquid supply system, the cleaning liquid supply system comprising a cleaning liquid tank (3), the cleaning liquid tank (3) and the recovery tank (1) being integrally formed.

10. The surface cleaning device (101) according to claim 9, characterized in that When the body of the surface cleaning device (101) is substantially level with the surface to be cleaned, the cleaning liquid tank (3) is located directly above the recovery tank (1).

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