Floor brush assembly and cleaning device

Abstract

This application provides a floor brush assembly and a cleaning device. The floor brush assembly includes a floor brush body, a roller brush, a cleaning fluid supply path, a heating element, and a mixer. The mixer includes a mixing body, a first inlet pipe, and a second inlet pipe. The mixing body has a mixing chamber, which includes a mixing section, a narrowing section, and an enlarging section connected sequentially along the fluid flow direction. The cross-sectional areas of the mixing section and the enlarging section are both larger than the cross-sectional area of ​​the narrowing section. The first inlet pipe is disposed on the portion of the mixing body containing the mixing section and communicates with the mixing section. The second inlet pipe is disposed on the portion of the mixing body containing the mixing section. In a direction away from the mixing body, the second inlet pipe is inclined toward the side where the first inlet pipe is located. The mixer is used to mix the cleaning medium and the fluid supplied by the heating element into a cleaning fluid, and the cleaning fluid supply path is used to supply the cleaning fluid to the roller brush. This is beneficial for increasing the temperature of the roller brush surface and improving the cleaning effect of the cleaning device.

Description

Technical Field

[0001] This application relates to the field of cleaning equipment technology, specifically to a floor brush assembly and a cleaning device. Background Technology

[0002] In daily household cleaning, to effectively remove stubborn stains on the floor, cleaning equipment with a high-temperature cleaning function is used to soften the stains, thereby accelerating the cleaning process. However, in related technologies, the high-temperature cleaning function of such equipment generates hot water by directly mixing steam and cold water through vertically intersecting pipes. This results in insufficient mixing between the steam and cold water, hindering the cleaning equipment's ability to effectively remove stubborn stains and reducing its cleaning efficiency. Summary of the Invention

[0003] This application provides a floor brush assembly and a cleaning device that improves the cleaning effect of the cleaning device.

[0004] In a first aspect, this application provides a floor brush assembly, comprising a floor brush body, a roller brush, and a cleaning fluid supply path, wherein the roller brush is disposed on the floor brush body; a heating element connected to the floor brush body; and a mixer connected to the floor brush body and disposed on the cleaning fluid supply path, the mixer comprising a mixing body, a first inlet pipe, and a second inlet pipe; the mixing body having a mixing chamber comprising a mixing section, a narrowing section, and an enlarging section sequentially connected along the fluid flow direction, wherein the cross-sectional area of ​​the mixing section and the enlarging section is larger than the cross-sectional area of ​​the narrowing section; the first inlet pipe is disposed on the portion of the mixing body having the mixing section and communicates with the mixing section, the first inlet pipe being used to provide a cleaning medium; the second inlet pipe is disposed on the portion of the mixing body having the mixing section, the heating element being communicated with the mixing section through the second inlet pipe; the second inlet pipe is inclined toward the side where the first inlet pipe is located in a direction away from the mixing body; wherein the mixer is used to mix the cleaning medium and the fluid provided by the heating element into a cleaning fluid, and the cleaning fluid supply path is used to provide the cleaning fluid to the roller brush.

[0005] According to the embodiments of this application, the floor brush assembly, by tilting the second inlet pipe toward the side where the first inlet pipe is located in a direction away from the mixing body, allows the cleaning medium flowing in from the first inlet pipe and the fluid flowing in from the heating element through the second inlet pipe to have a longer contact path and more contact time, thereby enabling the cleaning medium and fluid to mix better within the mixing section. Furthermore, by making the cross-sectional areas of both the mixing section and the enlarging section larger than the cross-sectional area of ​​the shrinking section, the mixing chamber can be configured as a Venturi-like structure, which further improves the mixing efficiency of the incoming cleaning fluid and, consequently, increases the temperature of the cleaning fluid supplied through the cleaning fluid supply path, and increases the temperature of the roller brush surface. This allows the cleaning equipment to effectively clean stubborn stains on the surface to be cleaned, thus improving the cleaning effect of the cleaning equipment.

[0006] In one possible implementation of the first aspect of this application, the included angle between the first inlet pipe and the second inlet pipe is greater than or equal to 45° and less than or equal to 60°.

[0007] In one possible implementation of the first aspect of this application, the diameter of the second inlet pipe is greater than or equal to 2.5 mm.

[0008] In one possible implementation of the first aspect of this application, the mixing section, the shrinking section, and the enlarging section are arranged in the axial direction of the mixing body; the first inlet pipe is located at one end of the axial direction of the mixing body.

[0009] In one possible implementation of the first aspect of this application, the second inlet pipe is connected to the peripheral wall of the mixing body.

[0010] In one possible implementation of the first aspect of this application, the ratio between the cross-sectional area of ​​the mixing section and the cross-sectional area of ​​the first inlet pipe is greater than or equal to 1.4.

[0011] In one possible implementation of the first aspect of this application, the ratio between the extension length of the mixing segment and the diameter of the mixing segment is greater than or equal to 2.

[0012] In one possible implementation of the first aspect of this application, the ratio between the minimum cross-sectional area of ​​the reduced segment and the cross-sectional area of ​​the mixed segment is greater than or equal to 0.5 and less than or equal to 0.6.

[0013] In one possible implementation of the first aspect of this application, the shrinking section includes a first pipe segment and a second pipe segment connected to each other, the first pipe segment being connected to the mixing section and the second pipe segment being connected to the enlargement section; in the direction from the shrinking section to the mixing section, the cross-sectional area of ​​the first pipe segment gradually increases; in the direction from the shrinking section to the enlargement section, the cross-sectional area of ​​the second pipe segment gradually increases.

[0014] In one possible implementation of the first aspect of this application, the angle between the inner wall surface of the first pipe segment and the central axis of the first pipe segment is greater than the angle between the inner wall surface of the second pipe segment and the central axis of the second pipe segment.

[0015] In one possible implementation of the first aspect of this application, the angle between the inner wall surface of the first pipe segment and the central axis of the first pipe segment is greater than or equal to 20° and less than or equal to 30°.

[0016] In one possible implementation of the first aspect of this application, the angle between the inner wall surface of the second pipe segment and the central axis of the second pipe segment is greater than or equal to 10° and less than or equal to 15°.

[0017] In one possible implementation of the first aspect of this application, a third inlet pipe is included, which is connected to and communicates with the portion of the hybrid body having the amplification section.

[0018] Secondly, this application provides a cleaning device, including a body and a floor brush assembly. The floor brush assembly is the aforementioned floor brush assembly, and the floor brush assembly is movably connected to the body.

[0019] The technical effects of the second aspect of this application can be referred to the technical effects of the first aspect mentioned above, and will not be repeated here. Attached Figure Description

[0020] Figure 1 A schematic diagram of a cleaning device provided for some embodiments of this application.

[0021] Figure 2 A perspective view of a mixer provided for some embodiments of this application.

[0022] Figure 3 A cross-sectional view of a mixer provided for some embodiments of this application.

[0023] Figure 4 for Figure 3 The enlarged view circled at point A in the middle.

[0024] Figure label: 1000. Cleaning equipment; 100. Floor brush assembly; 101. Floor brush body; 102. Mixer; 103. Roller brush; 200. Body; 1. Mixing body; 11. Mixing chamber; 12. Mixing section; 13. Reduction section; 131. First pipe section; 132. Second pipe section; 133. Third pipe section; 14. Enlargement section; 2. First inlet pipe; 3. Second inlet pipe; 4. Third inlet pipe; 5. Export pipe. Detailed Implementation

[0025] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.

[0026] In this application, the accompanying drawings are not necessarily drawn to scale, and local features may be enlarged or reduced to more clearly show the details of the local features.

[0027] Unless otherwise stated, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to limit the scope of this application. The term "and / or" as used in this application includes any and all combinations of one or more of the associated listed items. The singular forms "a," "the," and "the" as used in this application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise.

[0028] In the description of this application, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified. In the description of this application, "several" means one or more, unless otherwise explicitly specified.

[0029] In the description of this application, the terms "center", "thickness", "height", "inner", "outer", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the purpose of simplifying the description of this application and do not indicate that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. In other words, they should not be construed as limitations on this application.

[0030] In the description of this application, unless otherwise expressly defined, the terms "installation," "connection," "linking," "fixing," "setting," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can also refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0031] In the description of this application, unless otherwise expressly defined, the terms "above," "over," "on top of," "below," "below," "under," or "below" for "first feature over second feature" can refer to the first and second features being in direct contact, or to the first and second features being in indirect contact through an intermediate medium. Furthermore, "above," "below," and "over" for "first feature over second feature" can mean the first feature is directly above or diagonally above the second feature, or simply indicates that the horizontal height of the first feature is higher than the horizontal height of the second feature. Similarly, "below," "below," and "below" for "first feature over second feature" can mean the first feature is directly below or diagonally below the second feature, or simply indicates that the horizontal height of the first feature is lower than the horizontal height of the second feature.

[0032] In daily household cleaning, to effectively remove stubborn stains on the floor, cleaning equipment with a high-temperature cleaning function is used to soften the stains, thereby accelerating the cleaning process. However, in related technologies, the high-temperature cleaning function of such equipment generates hot water by directly mixing steam and cold water through vertically intersecting pipes. This results in insufficient mixing between the steam and cold water, hindering the cleaning equipment's ability to effectively remove stubborn stains and reducing its cleaning efficiency.

[0033] To address the aforementioned technical problems, this application provides a floor brush assembly and a cleaning device.

[0034] The cleaning equipment according to the embodiments of this application will be described below.

[0035] Cleaning equipment can be floor scrubbers. For example, cleaning equipment can be fully automatic floor scrubbers, semi-automatic floor scrubbers, walk-behind floor scrubbers, ride-on floor scrubbers, etc.

[0036] The cleaning equipment is mainly used to clean stains and dust on the surface to be cleaned. The surface to be cleaned can be a floor, wall, or the surface of an object to be cleaned with different degrees of roughness. The embodiments of this application do not specifically limit the type of surface to be cleaned.

[0037] Please see Figure 1The cleaning device 1000 provided in this application includes a floor brush assembly 100 and a body 200. The floor brush assembly 100 is rotatably connected to the bottom of the body 200. During cleaning, the user can hold the body 200 and push it to move the floor brush assembly 100 forward or backward on the surface to be cleaned, thereby enabling the floor brush assembly 100 to travel to different areas for cleaning.

[0038] Please see Figure 1 and Figure 2 The floor brush assembly 100 provided in this application may include a floor brush body 101 and a roller brush 103. The floor brush body 101 may serve as the main support structure of the floor brush assembly 100. The floor brush body 101 may have an internal accommodating space.

[0039] The roller brush 103 is disposed outside the receiving space and is rotatably connected to the floor brush body 101. During operation, the roller brush 103 contacts and rubs against the surface to be cleaned to clean the surface.

[0040] The outer side of the roller brush 103 may be provided with bristles or sponge, so as to scrub the ground during the rotation of the roller brush 103 and carry up the wastewater after cleaning.

[0041] The floor brush assembly 100 may also include a cleaning fluid supply path. The cleaning fluid supply path is used to supply cleaning fluid to the roller brush 103.

[0042] The floor brush assembly 100 also includes a mixer 102. The mixer 102 is connected to the floor brush body 101. The mixer 102 can be disposed within the receiving space of the floor brush body 101.

[0043] The mixer 102 is located on the cleaning fluid supply path. Specifically, the floor brush assembly 100 may also include a water supply unit and a heating unit. The water supply unit and the heating unit can be connected to the floor brush body 101. The water supply unit and the heating unit are located on the cleaning fluid supply path. The mixer 102, the water supply unit, the heating unit, and the connecting pipes can form the cleaning fluid supply path.

[0044] The clean water supply unit provides the cleaning medium, such as cold water, while the heating unit provides steam. The clean water supply unit draws the cleaning medium from a liquid source, such as a water tank in the cleaning equipment 1000, and then delivers it to the mixer 102 through its piping. The heating unit heats the cold water into steam, which is then delivered to the mixer 102 through its piping.

[0045] The mixer 102 can output the cleaning medium input from the clean water supply unit, the steam input from the heating unit, or the cleaning liquid obtained by mixing the steam input from the heating unit and the cleaning medium input from the clean water supply unit in the mixer 102.

[0046] The fluid output from the mixer 102 can be supplied to the roller brush 103 via a water distributor on the brush body 101. Alternatively, the fluid can be directly supplied to the roller brush 103 by spraying.

[0047] Please see Figure 2 and Figure 3 The mixer 102 provided in this application may include a mixing body 1, a first inlet pipe 2, and a second inlet pipe 3. The first inlet pipe 2 is used to provide a cleaning medium, and the second inlet pipe 3 is connected to a heating element. Specifically, the first inlet pipe 2 can be used to connect to the cleaning medium from the clean water supply unit of the cleaning device 1000, and the second inlet pipe 3 can be used to connect to fluid generated by the heating element. It should be noted that the fluids connected to the first inlet pipe 2 and the second inlet pipe 3 can be interchanged, or other types of fluids can be connected; this application does not limit this.

[0048] For example, the hybrid body 1, the first inlet pipe 2, and the second inlet pipe 3 can be integrally molded parts. This is beneficial to improving the reliability of the connection between the first inlet pipe 2 and the second inlet pipe 3 and the hybrid body 1, and also to improving the assembly efficiency of the floor brush assembly 100.

[0049] It should be noted that the hybrid body 1, the first inlet pipe 2, and the second inlet pipe 3 can also be connected in other ways, such as by bonding or snap-fitting, and this application does not limit this.

[0050] The mixing body 1 may have a mixing chamber 11. The mixing chamber 11 may include a mixing section 12, a narrowing section 13, and an amplifying section 14 connected sequentially along the fluid flow direction. Specifically, when the fluid flows in the mixing chamber 11, it can flow from the mixing section 12 into the narrowing section 13, and then from the narrowing section 13 into the amplifying section 14.

[0051] The cross-sectional areas of the mixing section 12 and the enlarging section 14 are both larger than the cross-sectional area of ​​the reducing section 13. Therefore, the mixing section 12, the reducing section 13, and the enlarging section 14 can form a Venturi-like structure.

[0052] Specifically, cross-sectional area refers to the area of ​​a plane obtained after cutting perpendicular to the flow direction of the fluid.

[0053] The first inlet pipe 2 can be disposed on the portion of the mixing body 1 that has the mixing section 12, and communicate with the mixing section 12. Thus, the cleaning medium can flow from the first inlet pipe 2 into the mixing section 12.

[0054] The second inlet pipe 3 can be disposed on the portion of the mixing body 1 that has the mixing section 12, and communicate with the mixing section 12. Thus, the fluid supplied by the heating element can flow from the second inlet pipe 3 into the mixing section 12.

[0055] The first inlet pipe 2 and the second inlet pipe 3 can be located on the same side of the mixing body 1 or on different sides of the mixing body 1.

[0056] In the direction away from the mixing body 1, the second inlet pipe 3 is inclined toward the side where the first inlet pipe 2 is located. Specifically, the central axis of the second inlet pipe 3 intersects the central axis of the first inlet pipe 2, and the included angle between the second inlet pipe 3 and the first inlet pipe 2 is an acute angle.

[0057] It should be noted that the second inlet pipe 3 can also be installed without tilting. A guide plate can be installed at the connection between the second inlet pipe 3 and the mixing section 12 to control the direction of the steam flowing into the mixing section 12.

[0058] In the following description, we will use cold water as the cleaning medium and steam provided by the heating element as an example.

[0059] Specifically, when cold water enters the mixing section 12 from the first inlet pipe 2 and steam enters the mixing section 12 from the second inlet pipe 3, the flow direction of the cold water and the flow direction of the steam do not intersect perpendicularly. Since the second inlet pipe 3 is inclined to the side where the first inlet pipe 2 is located, the flow direction of the cold water and the flow direction of the steam intersect at an acute angle, allowing the cold water and steam to meet at a smaller angle. This results in a longer contact path and more contact time for the steam and cold water, thus enabling better heat and mass exchange between the cold water and steam, which is beneficial to improving the mixing effect of the cold water and steam.

[0060] When the cold water and steam mixed in the mixing section 12 enter the shrinking section 13, the flow rate of the mixed cold water and steam increases because the cross-sectional area of ​​the mixing section 12 is larger than that of the shrinking section 13. This intensifies the shearing action between the steam and the cold water, thereby improving the efficiency of heat exchange between the steam and the cold water.

[0061] When the cold water and steam mixed in the shrinking section 13 enter the enlargement section 14, the flow rate of the mixed cold water and steam decreases because the cross-sectional area of ​​the enlargement section 14 is larger than that of the shrinking section 13. This allows the temperature of the mixed cold water and steam to flow out of the mixer 102 more evenly, so that the temperature of the hot water flowing out of the mixer 102 can reach about 90°C, thereby increasing the average temperature of the surface of the roller brush 103 to between 50°C and 60°C.

[0062] According to the embodiments of this application, the floor brush assembly 100, by tilting the second inlet pipe 3 towards the side where the first inlet pipe 2 is located in the direction away from the mixing body 1, allows the cleaning medium flowing in from the first inlet pipe 2 and the fluid flowing in from the heating element through the second inlet pipe 3 to have a longer contact path and more contact time, thereby allowing the cleaning medium and fluid to mix better in the mixing section 12. Furthermore, by making the cross-sectional areas of both the mixing section 12 and the enlarged section 14 larger than the cross-sectional area of ​​the reduced section 13, the mixing chamber 11 can be configured as a Venturi-like structure, which further improves the mixing efficiency of the incoming cleaning and fluid, thereby increasing the temperature of the cleaning fluid provided through the cleaning fluid supply path and the surface temperature of the roller brush 103. This allows the cleaning equipment 1000 to effectively clean stubborn stains on the surface to be cleaned, thus improving the cleaning effect of the cleaning equipment 1000.

[0063] For example, the mixer 102 may also include an outlet pipe 5. The outlet pipe 5 may be disposed on and communicated with the portion of the mixing body 1 having the enlarged section 14. Thus, the hot water after mixing by the mixer 102 can be discharged from the outlet pipe 5.

[0064] The cross-sectional area of ​​the outlet pipe 5 can be the same as that of the enlarged section 14. This helps to reduce the manufacturing difficulty of the mixer 102.

[0065] Please continue reading. Figure 2 and Figure 3 In some embodiments, the included angle B between the first inlet pipe 2 and the second inlet pipe 3 is greater than or equal to 45° and less than or equal to 60°. Specifically, the included angle B between the first inlet pipe 2 and the second inlet pipe 3 refers to the acute angle at which the central axis of the first inlet pipe 2 and the central axis of the second inlet pipe 3 intersect within the mixing section 12. This helps to avoid interference between the first inlet pipe 2 and the second inlet pipe 3 caused by an excessively small included angle B. It also helps to avoid the included angle B between the first inlet pipe 2 and the second inlet pipe 3 being too large, which would affect the mixing effect between the cold water and the steam.

[0066] For example, the included angle B between the first inlet pipe 2 and the second inlet pipe 3 can be any angle value between 45° and 60°. For example, it can be 46°, 48°, 50°, 52°, 55°, 58°, etc.

[0067] Please continue reading. Figure 2 and Figure 3In some embodiments, the diameter of the second inlet pipe 3 is greater than or equal to 2.5 mm. Therefore, by limiting the diameter of the second inlet pipe 3, the frictional force of the steam and the contact area with the pipe wall of the second inlet pipe 3 can be reduced as the diameter increases, thereby helping to reduce the back pressure inside the second inlet pipe 3. Furthermore, a larger diameter also reduces the confinement effect on the steam, allowing the steam to flow more smoothly within the second inlet pipe 3, thus helping to reduce momentum loss of the steam within the second inlet pipe 3. Moreover, the reduced flow rate of the steam flowing into the mixing section 12 from the second inlet pipe 3 also facilitates more stable mixing with the cold water, thereby improving the mixing effect of the mixer 102.

[0068] For example, the diameter of the second inlet pipe 3 can be 2.6mm, 2.7mm, 2.8mm, 2.9mm, 3mm, 3.1mm, etc.

[0069] Please continue reading. Figure 2 and Figure 3 In some embodiments, the mixing segment 12, the shrinking segment 13, and the enlarging segment 14 can be arranged in the axial direction of the mixing body 1. Specifically, the mixing segment 12, the shrinking segment 13, and the enlarging segment 14 are arranged sequentially in the axial direction of the mixing body 1.

[0070] The first inlet pipe 2 can be located at one axial end of the mixing body 1. Therefore, the flow direction of the cold water flowing in from the first inlet pipe 2 can be the same as the axial direction of the mixing body 1, which helps to reduce the energy loss of the cold water flowing in from the first inlet pipe 2.

[0071] Please continue reading. Figure 2 and Figure 3 In some embodiments, the second inlet pipe 3 is connected to the peripheral wall of the mixing body 1. Thus, the angle between the central axis of the second inlet pipe 3 and the central axis of the mixing body 1 is an acute angle, and the second inlet pipe 3 and the first inlet pipe 2 are located on different surfaces of the mixing body 1. This facilitates the arrangement of the mixer 102 within the floor brush assembly 100, allowing for a more rational structural layout of the floor brush assembly 100.

[0072] Please continue reading. Figure 2 and Figure 3 In some embodiments, the ratio between the cross-sectional area of ​​the mixing section 12 and the cross-sectional area of ​​the first inlet pipe 2 is greater than or equal to 1.4. This arrangement helps to ensure that the mixing section 12 has sufficient space to mix cold water and steam, thereby improving the mixing effect of the mixer 102.

[0073] For example, the ratio between the cross-sectional area of ​​the mixing section 12 and the cross-sectional area of ​​the first inlet pipe 2 can be 1.45, 1.5, 1.55, 1.6, etc.

[0074] Please continue reading. Figure 2 and Figure 3 In some embodiments, the ratio between the extension length of the mixing section 12 and the diameter of the mixing section 12 is greater than or equal to 2. This arrangement helps to ensure that the steam and cold water have sufficient time to complete the initial mixing within the mixing section 12, thereby improving the mixing effect of the mixer 102.

[0075] For example, the ratio between the extension length of the mixing section 12 and the diameter of the mixing section 12 can be 2.2, 2.4, 2.6, 2.8, etc.

[0076] Please continue reading. Figure 2 and Figure 3 In some embodiments, the ratio between the minimum cross-sectional area of ​​the shrinking section 13 and the cross-sectional area of ​​the mixing section 12 is greater than or equal to 0.5 and less than or equal to 0.6. By limiting the ratio between the minimum cross-sectional area of ​​the shrinking section 13 and the cross-sectional area of ​​the mixing section 12, it is beneficial to avoid an excessively large ratio that would prevent the flow rate of the mixed fluid of cold water and steam from reaching the preset flow rate, and also to avoid an excessively small ratio that would affect the injection of cold water and steam, thereby ensuring the mixing effect of the mixer 102.

[0077] For example, the ratio between the minimum cross-sectional area of ​​the shrinking segment 13 and the cross-sectional area of ​​the mixing segment 12 can be any value between 0.5 and 0.6. For example, it can be 0.51, 0.52, 0.53, 0.54, 0.55, 0.56, etc.

[0078] Please see Figure 3 and Figure 4 In some embodiments, the shrinking section 13 may include a first pipe section 131 and a second pipe section 132 connected to each other. The first pipe section 131 is connected to the mixing section 12, and the second pipe section 132 is connected to the amplifying section 14. In the direction from the shrinking section 13 to the mixing section 12, the cross-sectional area of ​​the first pipe section 131 gradually increases. In the direction from the shrinking section 13 to the amplifying section 14, the cross-sectional area of ​​the second pipe section 132 gradually increases. This allows the fluid to flow more smoothly from the mixing section 12 into the shrinking section 13, and then from the shrinking section 13 into the amplifying section 14, thereby helping to ensure the mixing effect of the mixer 102.

[0079] Please continue reading. Figure 3 and Figure 4In some implementations, the angle C between the inner wall surface of the first pipe section 131 and its central axis is greater than the angle D between the inner wall surface of the second pipe section 132 and its central axis. This means the steam and cold water mixture enters the converging section 13 at a larger angle and exits at a smaller angle. Therefore, the larger inlet taper of the converging section 13 allows the steam and cold water mixture to flow more effectively from the mixing section 12 into the converging section 13, reducing energy loss within the mixing chamber 11. Conversely, the smaller outlet taper keeps the steam and cold water mixture in a laminar flow state during diffusion, helping to prevent separation.

[0080] Please continue reading. Figure 3 and Figure 4 In some embodiments, the angle C between the inner wall surface of the first pipe section 131 and the central axis of the first pipe section 131 is greater than or equal to 20° and less than or equal to 30°. This helps to ensure the mixing effect of the mixer 102.

[0081] For example, the angle C between the inner wall surface of the first pipe segment 131 and the central axis of the first pipe segment 131 can be any angle value between 20° and 30°. For example, it can be 21°, 22°, 23°, 24°, 25°, 26°, 26.5°, 27°, etc.

[0082] Please continue reading. Figure 3 and Figure 4 In some embodiments, the angle D between the inner wall surface of the second pipe section 132 and the central axis of the second pipe section 132 is greater than or equal to 10° and less than or equal to 15°. This helps to avoid an excessive angle D between the inner wall surface of the second pipe section 132 and the central axis of the second pipe section 132, which could cause a large backflow zone to form during the diffusion of the steam and cold water mixture, leading to increased pressure loss and affecting the stability of the water flow in the entire loop. This, in turn, helps to ensure the mixing effect of the mixer 102.

[0083] For example, the angle D between the inner wall surface of the second pipe section 132 and the central axis of the second pipe section 132 can be any angle value between 10° and 15°. For example, it can be 11°, 11.3°, 11.5°, 11.8°, 12°, 13°, 14°, etc.

[0084] For example, the reduced section 13 may further include a third pipe section 133, which is disposed between the first pipe section 131 and the second pipe section 132, and the third pipe section 133 is formed into a cylindrical shape. Thus, after the mixed fluid of cold water and steam flows out of the first pipe section 131, the mixing of steam and cold water can be stabilized within the third pipe section 133, thereby helping to ensure the mixing effect of the mixer 102.

[0085] Please continue reading. Figure 3 and Figure 4 In some embodiments, the mixer 102 may further include a third inlet pipe 4. The third inlet pipe 4 is connected to and communicates with the portion of the mixing body 1 having the enlarged section 14. Thus, detergent can be introduced into the mixer 102 from the third inlet pipe 4, and steam or cold water can also be introduced from the third inlet pipe 4, thereby allowing for better control of the hot water output from the mixer 102.

[0086] It is understood that in the various embodiments of this application, the sequence number of each process does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application.

[0087] It is understood that the various implementation methods described in this application can be implemented individually or in combination, and the embodiments of this application are not limited in this respect.

[0088] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the aforementioned method implementations, and will not be repeated here.

[0089] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A floor brush assembly, used in cleaning equipment, characterized in that, include: The floor brush body, roller brush, and cleaning fluid provide a path, with the roller brush disposed on the floor brush body; A heating element, which is connected to the floor brush body; A mixer, connected to the floor brush body and disposed on the cleaning fluid supply path, the mixer comprising a mixing body, a first inlet pipe and a second inlet pipe; The mixing body has a mixing chamber, which includes a mixing section, a shrinking section, and an enlarging section connected sequentially along the fluid flow direction. The cross-sectional area of ​​the mixing section and the enlarging section is larger than that of the shrinking section. A first inlet pipe is disposed on the portion of the mixing body containing the mixing section and communicates with the mixing section. The first inlet pipe is used to provide a cleaning medium. A second inlet pipe is disposed on the portion of the mixing body containing the mixing section, and the heating element communicates with the mixing section through the second inlet pipe. In a direction away from the mixing body, the second inlet pipe is inclined toward the side where the first inlet pipe is located. The mixer is used to mix the cleaning medium and the fluid provided by the heating element into a cleaning liquid, and the cleaning liquid supply path is used to supply the cleaning liquid to the roller brush.

2. The floor brush assembly according to claim 1, characterized in that, The angle between the first inlet pipe and the second inlet pipe is greater than or equal to 45° and less than or equal to 60°.

3. The floor brush assembly according to claim 1, characterized in that, The arrangement direction of the mixing section, the shrinking section, and the enlarging section is the axial direction of the mixing body; The first inlet pipe is located at one axial end of the mixing body.

4. The floor brush assembly according to claim 3, characterized in that, The second inlet pipe is connected to the peripheral wall of the mixing body.

5. The floor brush assembly according to claim 1, characterized in that, The ratio between the cross-sectional area of ​​the mixing section and the cross-sectional area of ​​the first inlet pipe is greater than or equal to 1.4; and / or, The ratio between the extension length of the mixing section and the diameter of the mixing section is greater than or equal to 2.

6. The floor brush assembly according to claim 1, characterized in that, The ratio between the minimum cross-sectional area of ​​the reduced segment and the cross-sectional area of ​​the mixed segment is greater than or equal to 0.5 and less than or equal to 0.

6.

7. The floor brush assembly according to claim 1, characterized in that, The shrinking section includes a first pipe section and a second pipe section that are connected to each other. The first pipe section is connected to the mixing section, and the second pipe section is connected to the enlargement section. In the direction from the narrowing section to the mixing section, the cross-sectional area of ​​the first pipe section gradually increases; In the direction from the narrowing section to the enlarging section, the cross-sectional area of ​​the second pipe segment gradually increases.

8. The floor brush assembly according to claim 7, characterized in that, The angle between the inner wall surface of the first pipe segment and the central axis of the first pipe segment is greater than the angle between the inner wall surface of the second pipe segment and the central axis of the second pipe segment.

9. The floor brush assembly according to claim 8, characterized in that, The angle between the inner wall surface of the first pipe segment and the central axis of the first pipe segment is greater than or equal to 20° and less than or equal to 30°; and / or, The angle between the inner wall surface of the second pipe section and the central axis of the second pipe section is greater than or equal to 10° and less than or equal to 15°.

10. The floor brush assembly according to claim 1, characterized in that, It includes a third inlet pipe, which is connected to and communicates with the portion of the mixing body having the amplification section.

11. A cleaning device, characterized in that, include: body; The floor brush assembly is the floor brush assembly according to any one of claims 1-10, wherein the floor brush assembly is movably connected to the body.

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