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 and a gas-liquid separator. The housing defines a receiving space for receiving detritus, and further defines an opening for dumping detritus. The gas-liquid separator is arranged in the receiving space. The recovery box further comprises a liquid intake tube, and the gas-liquid separator is arranged at an outlet of the liquid intake tube. The gas-liquid separator comprises: a U-shaped baffle plate, which is arranged around the outer periphery of the liquid intake tube and extends in an axial direction of the liquid intake tube; and an arcuate flow-guide plate, which is arranged at one end of the U-shaped baffle plate, wherein the arcuate flow-guide plate comprises a closed section and an open section, the closed section being configured to close the upper end of the arcuate flow-guide plate, and the open section being arranged on an opening side of the U-shaped baffle plate; and the arcuate flow-guide plate is provided with a plurality of flow guide grooves, which are configured to guide a fluid flowing out from the outlet of the liquid intake tube. By using the above structure, water splashing generated in the recovery box when the recovery box is lying flat can be reduced, thereby improving the water vapor separation efficiency.

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] In wet cleaning devices, water overflow in the recovery tank can seriously affect gas-liquid separation efficiency and reduce the user experience of the device. To improve gas-liquid separation efficiency, the application document with publication number CN112870855B describes improvements to the gas-liquid separator to reduce water overflow in the recovery tank and improve gas-liquid separation efficiency.

[0003] However, when the recycling box with the gas-liquid separator in the above document is tilted or placed flat, the water overflowing in the recycling box is not only not reduced, but is more serious, especially when the recycling box is placed basically horizontally and the body of the floor scrubber is basically level with the cleaning ground. Summary of the Invention

[0004] In response to the deficiencies in the above-mentioned technologies, the present invention provides a recovery box and a surface cleaning device, which can avoid water overflowing as much as possible when the recovery box is in a horizontal position, thereby improving the gas-liquid separation efficiency.

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

[0006] a housing defining a receiving space for receiving dirt, and further defining an opening for dumping the dirt;

[0007] A gas-liquid separator is provided in the accommodation space,

[0008] A liquid inlet pipe, wherein the gas-liquid separator is arranged at the outlet of the liquid inlet pipe;

[0009] Wherein, the gas-liquid separator comprises:

[0010] a U-shaped baffle disposed around the outer periphery of the liquid inlet pipe and extending along the axial direction of the liquid inlet pipe, and a curved guide plate disposed at one end of the U-shaped baffle;

[0011] The arc-shaped guide plate includes a closed section and an open section, the closed section is used to close the upper end of the arc-shaped guide plate, and the open section is arranged on the opening side of the U-shaped baffle, and the arc-shaped guide plate is provided with a plurality of guide grooves, which are used to guide the fluid flowing out from the outlet of the liquid inlet pipe.

[0012] Optionally, a mounting frame is further included, which is detachably mounted at the opening, and the mounting frame defines an installation space, and the installation space is used to install the filter HEPA, wherein the filter HEPA and the U-shaped baffle are respectively located on opposite sides of the closed section.

[0013] Optionally, the mounting frame further defines a communication port connecting the accommodating space and the mounting space, and the communication port and the open section are respectively located on two opposite sides of the U-shaped baffle along the width direction.

[0014] Optionally, an anti-backflow structure is provided below the U-shaped baffle, and the anti-backflow structure includes a circulation channel and an anti-backflow component provided at the circulation channel.

[0015] Optionally, the backflow prevention component is configured to allow liquid flowing out of the liquid inlet pipe to flow into the bottom of the backflow prevention structure through the circulation channel, and is configured to prevent at least part of the liquid below the backflow prevention component from flowing back to the top of the backflow prevention component through the circulation channel.

[0016] Optionally, the device further comprises conductive detectors arranged on both sides of the U-shaped baffle along the length direction of the U-shaped baffle, and the conductive detectors are arranged substantially parallel to the liquid inlet pipe.

[0017] Optionally, the backflow prevention component includes a supporting plate, the supporting plate defines a receiving groove, and a filter screen for solid-liquid separation of dirt is provided in the receiving groove.

[0018] Optionally, the filter screen can be pivoted relative to the backflow prevention component to clean off solid dirt deposited on the filter screen.

[0019] 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.

[0020] On the other hand, the present invention also provides a surface cleaning device, comprising

[0021] 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.

[0022] The present invention provides a recycling box and a surface cleaning device, wherein the recycling box includes a shell and a gas-liquid separator. The shell defines a storage space for accommodating dirt, and the shell also defines an opening for dumping the dirt. The gas-liquid separator is arranged in the storage space. The recycling box also includes a liquid inlet pipe, and the gas-liquid separator is arranged at the outlet of the liquid inlet pipe. The gas-liquid separator includes: a U-shaped baffle arranged around the outer periphery of the liquid inlet pipe and extending along the axial direction of the liquid inlet pipe, and an arc-shaped guide plate arranged at one end of the U-shaped baffle; the arc-shaped guide plate includes a closed section and an open section, the closed section is used to close the upper end of the arc-shaped guide plate, the open section is arranged on the open side of the U-shaped baffle, and the arc-shaped guide plate is provided with a plurality of guide grooves, and the guide grooves are used to guide the fluid flowing out of the outlet of the liquid inlet pipe. The above structure can reduce the splash of water in the recycling box when it is lying flat, thereby improving the water vapor separation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] FIG1 is a schematic structural diagram of a cleaning system according to an embodiment of the present invention;

[0024] FIG2 is a schematic structural diagram of a host in an inclined state according to an embodiment;

[0025] FIG3 is a schematic structural diagram of a host in a lying state according to an embodiment;

[0026] FIG4 is a schematic structural diagram of a recycling box in an upright state according to an embodiment;

[0027] FIG5 is a cross-sectional view of the recovery box in FIG4 along its height direction;

[0028] FIG6 is a cross-sectional view of the recovery box in a tilted state;

[0029] FIG7 is a cross-sectional view of the recycling box in a flat state;

[0030] FIG8 is a schematic structural diagram of a gas-liquid separator in one embodiment;

[0031] FIG9 is a schematic structural diagram of a gas-liquid separator at an angle;

[0032] FIG10 is a schematic structural diagram of the gas-liquid separator from another angle;

[0033] FIG11 is a schematic structural diagram of a gas-liquid separator in another embodiment;

[0034] Figure 12 is a schematic structural diagram of the support plate in an open state;

[0035] FIG13 is an enlarged view of the structure of area A in FIG12 . DETAILED DESCRIPTION

[0036] 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.

[0037] It should be noted that if a directional indication is involved in the 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.

[0038] 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.

[0039] 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.

[0040] Figure 1 is a schematic diagram of the structure of a cleaning system according to one embodiment of the present invention. Figure 2 is a schematic diagram of the structure of a main unit in an inclined position according to one embodiment. Figure 3 is a schematic diagram of the structure of a main unit in a flat position according to one embodiment. Figure 4 is a schematic diagram of the structure of a recycling bin in an upright position according to one embodiment. Figure 5 is a cross-sectional view of the recycling bin in Figure 4 along its height. Figure 6 is a cross-sectional view of the recycling bin in an inclined position. Figure 7 is a cross-sectional view of the recycling bin in a flat position. Figure 8 is a schematic diagram of the structure of a gas-liquid separator according to one embodiment. Figure 9 is a schematic diagram of the structure of the gas-liquid separator at one angle. Figure 10 is a schematic diagram of the structure of the gas-liquid separator at another angle. Figure 11 is a schematic diagram of the structure of a gas-liquid separator according to another embodiment. Figure 12 is a schematic diagram of the structure of the tray in an open position. Figure 13 is an enlarged view of the structure of area A in Figure 12. Referring to Figures 1-3, Figure 1 discloses a cleaning system 100. Cleaning system 100 includes a main unit 101 and a base station 102 for docking with main unit 101. Main unit 101 is used to clean a surface to be cleaned. 2 and 3 , the main unit 101 generally includes a body 10 and a floor brush 30 connected to handles 20 at both ends of the body 10. The main unit 101 may also include a dirt recovery system and a cleaning liquid supply system. The dirt recovery system generally includes a suction motor for generating a suction airflow and a recovery box 1. The suction airflow is used to recover dirt into the recovery box 1 for gas-liquid separation and / or solid-liquid separation. The cleaning liquid supply system generally includes a cleaning liquid tank and a water pump, which supplies the cleaning liquid to the wiping piece or the surface to be cleaned. The water pump can also be replaced by other commonly used power equipment, which will not be described in detail here.

[0041] Referring to Figures 4-13, the present application provides a recycling box 1, which includes a shell and a gas-liquid separator. The shell defines a storage space for accommodating dirt. After the airflow carrying dirt enters the interior of the recycling box 1, the liquid separated by the gas-liquid separator is stored inside the recycling box 1, and the gas flows from the opening of the recycling box 1 to the suction motor. The shell also defines an opening for dumping dirt. The gas-liquid separator is arranged in the storage space. The recycling box 1 also includes a liquid inlet pipe 17, which is used to guide external dirt into the recycling box 1. The liquid inlet pipe 17 is generally arranged in the storage space of the recycling box 1. Of course, part or all of the liquid inlet pipe 17 can also be arranged outside the recycling box 1. The gas-liquid separator is arranged at the outlet of the liquid inlet pipe 17. In order to prevent the liquid in the recycling box 1 from splashing when the recycling box 1 is in a flat state, the present application has made some improvements to the gas-liquid separator:

[0042] Referring to Figures 8-13, the gas-liquid separator includes a U-shaped baffle 161 and an arcuate deflector 162 disposed at one end of the U-shaped baffle 161. The U-shaped baffle 161 surrounds the outer periphery of the liquid inlet pipe 17 and extends along the axis of the liquid inlet pipe 17. The height of the U-shaped baffle 161 is along the axis of the liquid inlet pipe 17 (the Z direction shown in Figure 8), the length of the U-shaped baffle 161 is along the X direction in the figure, and the width is along the Y direction in the figure. The U-shaped baffle 161, with its U-shaped cross-section, defines a long, rectangular opening. The arcuate deflector 162 is disposed at one end of the lengthwise direction of the U-shaped baffle 161. Specifically, the arc-shaped guide plate 162 includes a closed section 163 and an open section 164. The closed section 163 is used to close the upper end of the arc-shaped guide plate 162, and the open section 164 is provided on the side of the opening 169 of the U-shaped baffle. The open section 164 is arranged at an angle relative to the opening 169 of the U-shaped baffle. That is, along the height direction of the U-shaped baffle 161, from top to bottom, the distance between the open section 164 and the opening 169 of the U-shaped baffle gradually increases, so that the airflow can flow out of the U-shaped baffle 161 from this point. Furthermore, the arc-shaped guide plate 162 is provided with a plurality of guide grooves 165, which are used to guide the fluid flowing out of the outlet of the liquid inlet pipe 17. Both the closed section 163 and the open section 164 have a guide groove 165, which is interconnected. The guide groove 165 serves to disperse the large amount of liquid flowing out of the outlet of the liquid inlet pipe 17, allowing the liquid to quickly exit the gas-liquid separator in the form of water droplets along the guide groove 165 and fall to the bottom of the recovery tank 1. This prevents large amounts of water vapor from accumulating between the U-shaped baffle 161 and the curved guide plate 162 and being drawn into the motor along with the gas. Especially when the recovery tank 1 is horizontal (the body 10 is flat), the guide groove 165 effectively directs the liquid away from the connecting opening 168. This effectively prevents the generation of large amounts of water splashing caused by turbulent airflow at this location. The closed section 163 and the open section 164 can be integrally formed, with the guide groove 165 formed simultaneously thereon. Multiple guide grooves 165 can be arranged in parallel, giving the entire curved guide plate 162 a wavy shape. The guide groove 165 may also gradually become larger or smaller.

[0043] Referring to Figures 6-11 , the recovery bin 1 also includes a mounting bracket 15, which is removably mounted to the opening. The bracket 15 defines a mounting space for mounting a filter HEPA 151. The filter HEPA 151 and the U-shaped baffle 161 are located on opposite sides of the closed section 163. In other words, when the recovery bin 1 is upright, the filter HEPA 151 is positioned directly above the gas-liquid separator.

[0044] 6-11 , the mounting frame 15 further defines a communication port 168 connecting the storage space and the installation space. The communication port 168 and the open section 164 are located on opposite sides of the width of the U-shaped baffle 161. When the main unit 101 is in a flat position, the communication port 168 is located above the curved guide plate 162. Specifically, the opening 169 of the U-shaped baffle and the communication port 168 are located on opposite sides of the liquid inlet pipe 17. Thus, after the liquid-carrying airflow flows out of the outlet of the liquid inlet pipe 17, the curved guide plate 162 guides the airflow, causing the majority of the liquid to flow along the guide groove 165 to the bottom of the recovery tank 1. The gas is separated from the liquid, flows upward to the communication port 168, and then passes through the filter HEPA 151 before exiting the recovery tank 1. There is no air outlet between the guide grooves 165 of the arc-shaped guide plate 162 as in the structure described in the prior art, because it can effectively prevent part of the airflow from blowing the liquid here to produce splashes (that is, the phenomenon of water spillage), thereby reducing the water vapor being sucked into the suction motor.

[0045] 8 , the apparatus further includes conductive detectors 152 disposed on both sides of the U-shaped baffle 161 along its length. The conductive detectors 152 are disposed substantially parallel to the liquid inlet pipe 17. The conductive detectors 152 are configured to emit an alarm signal when the liquid level passes through the two conductive detectors 152, and the suction motor stops, thereby preventing a large amount of liquid from being sucked into the motor.

[0046] In order to further ensure that the recovery box 1 can be used normally when it is in a flat position, an anti-backflow structure is provided below the U-shaped baffle 161. The anti-backflow structure includes a circulation channel 13 and an anti-backflow component 12 provided at the circulation channel 13. The anti-backflow component 12 is configured to allow the liquid flowing out of the liquid inlet pipe 17 to flow into the bottom of the anti-backflow structure through the circulation channel 13, and is configured to prevent at least part of the liquid below the anti-backflow component 12 from flowing back to the top of the anti-backflow component 12 through the circulation channel 13. In particular, when the recovery box 1 is in a flat position, the liquid on the left side of the figure is effectively prevented from flowing back to the position of the arc-shaped guide plate 162 on the right side. The less water accumulates at the position of the arc-shaped guide plate 162, the less likely it is to cause splashes, and the less water vapor is carried to the suction motor by the airflow, effectively extending the service life of the suction motor and the filter HEPA 151.

[0047] Referring to Figures 11-13, in order to achieve solid-liquid separation of garbage, the backflow prevention structure includes a support plate 166, which defines a receiving groove, and a filter screen 14 is provided in the receiving groove for solid-liquid separation of dirt. The solid garbage after solid-liquid separation can be kept above the filter screen 14. Furthermore, the filter screen 14 can be pivoted relative to the backflow prevention component 12 to clean up the solid dirt deposited on the filter screen 14. When the user removes the backflow prevention structure for cleaning, the filter screen 14 can be rotated to clean up the solid garbage deposited on the filter screen 14, and at the same time, the garbage on the support plate 166 can also be cleaned. Furthermore, in order to prevent the liquid from flowing back to the area where the arc-shaped guide plate 162 is located, at least part of the outer periphery of the support plate 166 is in sealing contact with the inner wall of the recycling box 1. In order to achieve sealing, a partial sealing gasket can be provided on the outer periphery of the support plate 166, so that a sealing effect can be achieved. The sealing gasket can be made of rubber material.

[0048] 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 defines a receiving space for receiving dirt, and the housing further defines an opening for dumping the dirt; A gas-liquid separator is arranged in the accommodating space, A liquid inlet pipe (17), wherein the gas-liquid separator is arranged at the outlet of the liquid inlet pipe (17); Wherein, the gas-liquid separator comprises: A U-shaped baffle (161) arranged around the outer periphery of the liquid inlet pipe (17) and extending along the axial direction of the liquid inlet pipe (17), and an arc-shaped guide plate (162) arranged at one end of the U-shaped baffle (161); The arc-shaped guide plate (162) comprises a closed section (163) and an open section (164); the closed section (163) is used to close the upper end of the arc-shaped guide plate (162); the open section (164) is arranged on the opening side of the U-shaped baffle (161); and the arc-shaped guide plate (162) is provided with a plurality of guide grooves (165); the guide grooves (165) are used to guide the fluid flowing out from the outlet of the liquid inlet pipe (17).

2. The recycling box (1) according to claim 1, characterized in that: It also includes a mounting frame (15), the mounting frame (15) being detachably mounted at the opening, the mounting frame (15) defining an installation space, the installation space being used to install a filter HEPA (151), wherein the filter HEPA (151) and the U-shaped baffle (161) are respectively located on opposite sides of the closed section (163).

3. The recycling box (1) according to claim 2, characterized in that: The mounting frame (15) further defines a communication port (168) connecting the accommodating space and the mounting space, and the communication port (168) and the open section (164) are respectively located on two opposite sides of the U-shaped baffle (161) along the width direction.

4. The recycling box (1) according to claim 1, characterized in that: A backflow prevention structure is provided below the U-shaped baffle (161), the backflow prevention structure comprising a circulation channel (13) and a backflow prevention component (12) provided at the circulation channel (13).

5. The recycling box (1) according to claim 4, characterized in that: The backflow prevention component (12) is configured to allow liquid flowing out of the liquid inlet pipe (17) to flow into the bottom of the backflow prevention structure through the circulation channel (13), and is configured to prevent at least part of the liquid below the backflow prevention component (12) from flowing back to the top of the backflow prevention component (12) through the circulation channel (13).

6. The recycling box (1) according to claim 1, characterized in that: It also comprises conductive detectors (152) arranged on both sides of the U-shaped baffle (161) along the length direction of the U-shaped baffle (161), and the conductive detectors (152) are arranged substantially parallel to the liquid inlet pipe (17).

7. The recycling box (1) according to claim 4, characterized in that: The backflow prevention structure comprises a support plate (166), the support plate (166) defining a receiving groove, and a filter screen (14) for solid-liquid separation of dirt being arranged in the receiving groove.

8. The recycling box (1) according to claim 7, 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).

9. The recycling box (1) according to claim 7, characterized in that: At least a portion of the outer periphery of the support plate (166) is in sealing contact with the inner wall of the recovery box (1).

10. A surface cleaning device, 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 9.

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