Rolling brush assembly, cleaning head and cleaning equipment

Abstract

The utility model provides a rolling brush assembly, a cleaning head and cleaning equipment, and relates to the technical field of cleaning equipment. The rolling brush assembly comprises a rolling brush main body, the rolling brush main body comprises a roller, at least one axial flow equalizing cavity is formed in the roller wall of the roller, and the axial flow equalizing cavity extends in the axial direction of the roller; a water inlet hole is formed in the inner wall surface of the roller, a plurality of water outlet holes are formed in the outer wall surface of the roller, the water outlet holes are distributed in different axial positions of the roller, and the water inlet hole and the water outlet holes are communicated with the axial flow equalizing cavity; the roller comprises a roller body and at least one water cavity cover, the roller body is provided with at least one water cavity groove, the groove bottom of the water cavity groove is provided with a protruding flow dividing channel wall, and the flow dividing channel wall and the water cavity cover jointly define a fluid flow dividing channel. According to the rolling brush assembly, the wiping piece wrapping the rolling brush body can be wetted from inside to outside, the wiping piece is fully and evenly wetted, the effective cleaning area of the rolling brush assembly is increased, and the cleaning effect of the rolling brush assembly is improved.

Description

Technical Field

[0001] The present application relates to the technical field of cleaning equipment, and in particular to a roller brush assembly, a cleaning head and a cleaning equipment. Background Art

[0002] With the development of science and technology and the improvement of people's quality of life, cleaning equipment such as vacuum cleaners, sweepers, and floor scrubbers are increasingly used in people's lives.

[0003] In existing floor scrubbers, when the roller brush assembly rotates to clean the floor, the cleaning liquid is sprayed onto the cleaning cloth wrapped outside the roller through the nozzle fixed on the roller. There are two main ways to spray the cleaning liquid onto the cleaning cloth: one is that the nozzle is fixed outside the roller, the cleaning liquid is sprayed directly onto the outer surface of the cleaning cloth, and the cleaning cloth is wetted from the outside to the inside; the other is that the nozzle is fixed inside the roller, the cleaning liquid is sprayed onto the inner surface of the cleaning cloth through the through hole opened on the roller, and the cleaning cloth is wetted from the inside to the outside.

[0004] However, no matter the cleaning cloth is moistened from the outside to the inside or from the inside to the outside, the cleaning cloth is not moistened evenly, the effective cleaning area is small, and it is easy to cause obvious water stains and water marks on the ground, and the cleaning effect needs to be improved. Utility Model Content

[0005] The present application provides a roller brush assembly, a cleaning head and a cleaning device. The roller brush assembly can moisten the wiping piece wrapped outside the roller brush body from the inside to the outside, thereby achieving sufficient and uniform wetting of the wiping piece, increasing the effective cleaning area of ​​the roller brush assembly, and improving the cleaning effect of the roller brush assembly.

[0006] The first aspect of the present application provides a roller brush assembly, comprising: a roller brush body, including a roller, wherein at least one axial flow equalization cavity is arranged in the cylinder wall of the roller, and the axial flow equalization cavity extends along the axial direction of the roller; a water inlet hole is arranged on the inner wall surface of the roller, and a plurality of water outlet holes are arranged on the outer wall surface of the roller, and each water outlet hole is distributed at a different axial position of the roller, and the water inlet hole and each water outlet hole are connected to the axial flow equalization cavity.

[0007] Among them, the drum includes a cylinder body and at least one water cavity cover, the cylinder body has at least one water cavity groove, the water cavity cover and the water cavity groove together form an axial flow equalization cavity; and the groove bottom of the water cavity groove has a raised diversion channel wall, the diversion channel wall and the water cavity cover together form a fluid diversion channel, the fluid diversion channel extends to the axial ends of the axial flow equalization cavity, and each water outlet is connected to the fluid diversion channel.

[0008] The roller brush assembly provided by the present application is configured by providing at least one axial flow-equalizing cavity in the cylinder wall of the roller so that the axial flow-equalizing cavity extends along the axial direction of the roller. In addition, a plurality of water outlet holes are provided on the outer wall surface of the roller, and the plurality of water outlet holes are distributed at different axial positions of the roller, and each water outlet hole is connected to the axial flow-equalizing cavity. In this way, the axial flow-equalizing cavity allows the cleaning liquid to flow through almost the entire axial area of ​​the roller, and the cleaning liquid can be sprayed onto the wiping element through each water outlet hole, wetting the wiping element from the inside to the outside, and uniformly wetting each axial area of ​​the wiping element. As a result, the wiping element is uniformly and fully wetted, the effective cleaning area of ​​the wiping element is large, water stains and water marks on the surface to be cleaned can be avoided, and the cleaning effect of the roller brush assembly is improved.

[0009] In addition, a water cavity groove is provided on the outer wall of the cylinder, and a water cavity cover is provided at the water cavity groove. The cylinder and the water cavity cover together constitute the drum, and the two together form an axial flow equalization cavity. A raised diversion channel wall is formed at the bottom of the water cavity groove, so that the diversion channel wall and the water cavity cover together form a fluid diversion channel. In this way, the fluid flows along the fluid diversion channel, and fluid can pass through each axial area of ​​the axial flow equalization cavity. The diversion channel wall is equivalent to forming a reinforcing rib structure in the water cavity groove, which can strengthen the structural strength of the cylinder itself and significantly improve the reliability of the drum as a whole. The water inlet hole is directly processed at the bottom of the water cavity groove, which is convenient for the processing and sealing of the water inlet hole, and the sealing of the axial flow equalization cavity is better. The water outlet hole is arranged on the water cavity cover, which makes the processing and manufacturing of the water outlet hole simpler, and the position accuracy of the water outlet hole is higher.

[0010] In addition, when the roller brush assembly is used in a scenario where hot water or steam is introduced, the design of the axial flow equalization cavity with multiple water outlet holes can also effectively solve the problem of uneven hot water or steam in the drum, and can improve the uniformity of cleaning and sterilization of the surface to be cleaned by hot water or steam.

[0011] In a possible implementation, there are multiple axial flow balancing cavities, and the axial flow balancing cavities are evenly spaced along the circumference of the drum.

[0012] In this way, the axial flow equalization chambers evenly spaced in the circumferential direction can achieve wetting of all circumferential regions of the wiper. Each axial flow equalization chamber almost covers the entire axial region of the drum, achieving wetting of all axial regions of the wiper. Thus, even wetting of all regions of the wiper is achieved, and the wiper has a more even and thorough cleaning effect on the surface to be cleaned.

[0013] In a possible implementation manner, the number of the axial flow equalization cavities is three.

[0014] In a possible implementation, the drum includes a main cylinder portion of equal diameter for contacting the surface to be cleaned, and the axial flow-averaging cavity completely covers the main cylinder portion of equal diameter.

[0015] By making the axial flow-equalizing cavity completely cover the equal-diameter main cylinder, the axial flow-equalizing cavity covers the entire axial area where the roller contacts the surface to be cleaned. The cleaning liquid flows through the entire axial area of ​​the equal-diameter main cylinder, and the cleaning liquid wets the wiping element from the inside to the outside through each water outlet, uniformly wetting each axial area of ​​the wiping element, thereby increasing the effective cleaning area of ​​the wiping element and improving the cleaning uniformity of the wiping element.

[0016] In a possible embodiment, one of the outer periphery of the diversion channel wall and the inner surface of the water chamber cover has a diversion channel sealing groove, and the other has a raised diversion channel sealing portion, which extends into the diversion channel sealing groove and is sealed and connected to the bottom of the diversion channel sealing groove.

[0017] In this way, the sealing portion of the diverter channel extends into the sealing groove of the diverter channel to achieve sealing of the fluid diverter channel.

[0018] In a possible implementation manner, the diverter channel sealing portion is an elastic portion, and the diverter channel sealing portion is in close contact with the bottom of the diverter channel sealing groove.

[0019] In this way, the diversion channel sealing part has good elasticity, and the diversion channel sealing part can be tightly fitted on the groove bottom of the diversion channel sealing groove to ensure the sealing performance of the diversion channel sealing part to the fluid diversion channel.

[0020] In a possible embodiment, the fluid diversion channel includes a main channel and at least two branch channels, the head end of the main channel is close to one axial end of the axial flow equalization chamber, and the end of the main channel extends to the other axial end of the axial flow equalization chamber, the head end of each branch channel is connected to the main channel, and the end of each branch channel is distributed at different axial positions of the axial flow equalization chamber; wherein, the water inlet hole is arranged at the head end of the main channel, and each water outlet hole is arranged at the end of each branch channel.

[0021] In this way, the design of the main channel plus the branch channels allows the fluid diversion channel to occupy the axial space of the axial flow equalization chamber. Among them, the main channel can determine the only path for the fluid to enter, and the water inlet is set at the head end of the main channel to ensure that the fluid flows smoothly and regularly in the fluid diversion channel. Each branch channel divides out a plurality of fluid flow paths to transport the fluid to different axial parts of the axial flow equalization chamber. Then, each water outlet is correspondingly set at the end of each branch channel, so that the fluid is sprayed out from different axial parts of the axial flow equalization chamber to evenly wet all axial areas of the wiper.

[0022] In a possible embodiment, the end of the main channel extends to the axial middle of the axial flow equalization cavity, and the number of branch channels is two. The two branch channels are respectively located on both sides of the end of the main channel, and the two branch channels extend to the axial ends of the axial flow equalization cavity respectively.

[0023] In one possible embodiment, from the head end to the end of the main channel, the main channel includes a main section and a tail section arranged in sequence, the main section extends along the first side of the axial flow equalization cavity, and the tail section extends from the first side of the axial flow equalization cavity to the second side of the axial flow equalization cavity; the branch channel includes a main branch section and multiple branch sections, the head end of the main branch section is connected to the end of the tail section, and the main branch section extends along the second side of the axial flow equalization cavity, the head end of each branch section is connected to the main branch section, and each end of each branch section extends toward the first side of the axial flow equalization cavity.

[0024] In this way, the main and branch sections of the main channel and the branch channel are respectively located on both sides of the axial flow equalization cavity, and there is a large space between the main and branch sections of the branch channel, which is convenient for the layout of the branch sections of the branch channel. The branch sections of the branch channel have sufficient extension space, and can be branched step by step on the basis of the main branch section to form a large number of branch sections, so as to facilitate the arrangement of multiple water outlets corresponding to each branch section, thereby improving the flow equalization effect of the axial flow equalization cavity.

[0025] In a possible implementation manner, the roller brush body further includes: a fluid distribution component fixed in the roller; the fluid distribution component has at least one fluid distribution port, and the fluid distribution port is connected to the water inlet hole.

[0026] In this way, the fluid entering the drum is evenly distributed through the fluid distribution member, so that the fluid is evenly distributed to each axial flow distribution cavity, ensuring the wetting uniformity of the wiping member and improving the cleaning uniformity of the wiping member on the surface to be cleaned.

[0027] In a possible implementation manner, the roller brush body further includes: end covers, which are installed at both axial ends of the roller; wherein the fluid distribution component is connected to the end covers.

[0028] In this way, it is convenient to fix the fluid distribution component without introducing additional structures or components to fix the fluid distribution component, which is conducive to saving the manufacturing cost of the roller brush body. In addition, the end cover can be used to position the fluid distribution component at the end of the roller, so that the fluid distribution port on the fluid distribution component is connected to the water inlet hole of the axial flow equalization cavity.

[0029] In one possible embodiment, a sealing portion is provided at one end of the drum facing the fluid distribution component, and the sealing portion seals the interior of the drum; wherein the fluid distribution component is sealed and connected to the sealing portion, and the fluid distribution component and the sealing portion together enclose at least one fluid distribution cavity, and the fluid distribution port and the water inlet are both connected to the fluid distribution cavity.

[0030] In this way, the fluid distribution cavity is surrounded by the fluid distribution component and the sealing part, and the design and processing of the fluid distribution component itself is simpler. The fluid distribution cavity is directly connected to the water inlet hole on the inner wall of the drum, and the fluid distribution component does not need to be sealed and connected to the water inlet hole. The installation method of the fluid distribution component is simpler and the installation accuracy requirement is lower.

[0031] In a possible implementation, the fluid distribution component includes: a distribution component body, which is provided with a fluid distribution port; a sealing component, which together with the distribution component body forms a fluid inlet cavity; and the sealing component is provided with a fluid inlet, which is connected to the fluid inlet cavity.

[0032] In this way, the main body of the distribution component is easy to process to form a fluid distribution port, and the sealing component can ensure the sealing performance of the fluid distribution component to the fluid. The additional distribution component main body is sealed and connected with the sealing part in the drum, which can fully ensure the sealing performance before the fluid enters the axial flow equalization cavity and prevent the cleaning liquid or cleaning steam from overflowing from the gap.

[0033] In a possible implementation, the roller brush assembly further includes: a roller brush handle rotatably connected to two ends of the roller brush body.

[0034] In one possible embodiment, a fluid supply cavity is provided in the roller brush handle, and the roller brush handle is provided with a fluid inlet portion and a fluid supply portion, both of which are connected to the fluid supply cavity; wherein the fluid inlet portion is used to supply fluid to enter the fluid supply cavity, and the fluid supply portion is connected to the axial flow equalization cavity.

[0035] The roller brush handle is connected to the end of the roller brush body, so that the roller brush handle can be used to transport fluid into the drum. In addition, there is no need to set up additional components specifically for transporting fluid, the structural design of the roller brush assembly is simpler, and the manufacturing cost of the roller brush assembly is lower. In addition, the roller brush handle is connected to the floor brush shell, and the roller brush handle can be used as a part of the appearance of the cleaning head, and it is also easy to provide fluid to the roller brush handle.

[0036] In a possible implementation, the roller brush handle includes a handle body and a handle cover, a side wall of the handle body has a handle groove, and the handle cover seals the handle groove and together with the handle groove forms a fluid supply cavity.

[0037] In a possible embodiment, the bottom of the handle groove has a raised annular guide wall, and the handle cover and the annular guide wall together form a fluid supply channel; wherein the fluid inlet portion is arranged at one end of the fluid supply channel, and the fluid supply portion is arranged at the other end of the fluid supply channel.

[0038] In this way, the raised annular guide wall and the handle cover enclose a fluid supply channel to achieve the flow of fluid in the roller brush handle. The fluid inlet portion and the fluid supply portion can be respectively arranged at both ends of the fluid supply channel to achieve smooth flow of fluid in the fluid supply channel.

[0039] In a possible embodiment, the bottom of the handle groove also has a raised annular sealing wall, which is arranged around the outer periphery of the annular guide wall, and the annular sealing wall and the annular guide wall together form a supply channel sealing groove; the inner surface of the handle cover has a raised supply channel sealing portion, which extends into the supply channel sealing groove and is sealed and connected to the bottom of the supply channel sealing groove.

[0040] In this way, the supply channel sealing part can seal the fluid supply channel to ensure the sealing performance of the fluid supply channel and avoid fluid leakage.

[0041] In a possible embodiment, the bottom of the handle groove also has a raised sealing retaining wall, which is close to the edge of the handle body, and the sealing retaining wall and the side wall of the handle groove together form a supply cavity sealing groove; the inner surface of the handle cover also has a raised supply cavity sealing portion, which extends into the supply cavity sealing groove and is sealed and connected to the bottom of the handle groove.

[0042] In this way, the supply cavity sealing part and the supply channel sealing part on the handle cover double seal the fluid supply cavity, which can further enhance the sealing reliability of the fluid supply cavity, improve the sealing performance of the handle body, and prevent fluid leakage from the handle body.

[0043] A second aspect of the present application provides a cleaning head, comprising a floor brush shell and a roller brush assembly as described above, wherein the roller brush assembly is mounted on the floor brush shell.

[0044] The cleaning head provided in the present application includes the aforementioned roller brush assembly and thus has all the technical effects of the roller brush assembly, which will not be described in detail here.

[0045] The third aspect of the present application provides a cleaning device, comprising a body and a cleaning head as described above, wherein the body or the cleaning head is provided with a fluid pump, and the fluid pump is used to drive the fluid to flow in the axial flow equalization cavity of the roller brush body.

[0046] The cleaning device provided in the present application includes the aforementioned roller brush assembly and thus has all the technical effects of the roller brush assembly, which will not be described in detail here.

[0047] Among them, by arranging a fluid pump inside the cleaning device, under the condition of low flow or low pressure, the pressure and flow rate of the fluid flowing into each axial flow equalization cavity can be increased, and the uniformity of the overall flow rate of the fluid in the drum can be improved. Thus, the uniformity of the fluid sprayed from the entire drum is enhanced, the wetting uniformity of the wiping member is improved, and the cleaning effect of the roller brush assembly on the surface to be cleaned is improved.

[0048] In a possible implementation, the fluid pump includes an air pump and a liquid pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings required for use in the embodiments or the prior art description are briefly introduced below. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0050] Figure 1 A schematic diagram of the structure of a roller brush assembly provided in an embodiment of the present application;

[0051] Figure 2 for Figure 1 An exploded structural diagram of the roller brush assembly shown;

[0052] Figure 3 A schematic diagram of the structure of the roller brush body provided in an embodiment of the present application;

[0053] Figure 4 for Figure 3 The exploded structural diagram of the roller brush body in FIG.

[0054] Figure 5 A partial cross-sectional view of a roller brush assembly provided in an embodiment of the present application;

[0055] Figure 6 for Figure 3 An exploded structural diagram of a roller brush body from one perspective;

[0056] Figure 7 for Figure 3 A decomposition structure diagram of the roller brush body from another perspective;

[0057] Figure 8 for Figure 3 A cross-sectional schematic diagram of a roller brush body;

[0058] Fig. 9 A front view of a cylinder provided in an embodiment of the present application;

[0059] Fig.10 for Figure 3 A partial exploded structural diagram of a roller brush body from one perspective;

[0060] Fig.11 for Figure 3 A partial exploded structural diagram of the roller brush body from another perspective;

[0061] Fig.12 A partial exploded structural diagram of a roller brush assembly provided in an embodiment of the present application;

[0062] Fig.13 An exploded structural diagram of a roller brush handle provided in an embodiment of the present application from one perspective;

[0063] Fig.14 This is a structural diagram of the roller brush handle from another perspective provided in an embodiment of the present application.

[0064] Description of reference numerals:

[0065] 100-roller brush body;

[0066] 101-fluid distribution chamber; 102-fluid inlet chamber;

[0067] 110 - roller; 120 - end cover; 130 - fluid distribution member;

[0068] 111-equal diameter main cylinder; 112-axial equal flow cavity; 113-water inlet hole; 114-water outlet hole; 115-cylinder body; 116-water cavity cover; 117-sealing part; 118-sealing ring; 121-bearing; 131-distribution part body; 132-sealing part;

[0069] 1121-fluid shunt channel; 1150-water cavity groove; 1151-shunt channel wall; 1152-shunt channel sealing groove; 1161-shunt channel sealing part; 1171-fluid distribution groove; 1311-fluid distribution port; 1321-fluid inlet;

[0070] 11211-main channel; 11212-branch channel;

[0071] 11211a-main section; 11211b-tail section; 11212a-main branch section; 11212b-branch section;

[0072] 200-wipe piece;

[0073] 300-Roller brush handle;

[0074] 301 - fluid inlet; 302 - fluid supply portion; 303 - fluid supply cavity; 304 - fluid supply channel;

[0075] 310-handle body; 320-handle cover;

[0076] 311-handle groove; 321-supply channel sealing part; 322-supply cavity sealing part;

[0077] 3111 - annular guide wall; 3112 - annular sealing wall; 3113 - supply channel sealing groove; 3114 - sealing retaining wall; 3115 - supply cavity sealing groove. DETAILED DESCRIPTION

[0078] As described in the background technology, existing floor scrubbers are equipped with a nozzle on the roller brush assembly, and the nozzle is fixed on the drum. The nozzle sprays cleaning liquid to wet the cleaning cloth wrapped outside the drum. There are usually two ways to spray the cleaning liquid onto the cleaning cloth: one is that the nozzle is fixed on the outside of the drum, and the cleaning liquid sprayed by the nozzle is directly sprayed on the cleaning cloth, and the cleaning liquid wets the cleaning cloth from the outer surface of the cleaning cloth to the inner surface of the cleaning cloth (from the outside to the inside); the other is that the nozzle is fixed inside the drum, and the cleaning liquid sprayed by the nozzle is sprayed on the cleaning cloth through the through hole opened on the drum, and wets the cleaning cloth from the inner surface of the cleaning cloth to the outer surface of the cleaning cloth (from the inside to the outside).

[0079] The above two methods of spraying cleaning liquid both have their defects. In the method where the nozzle is fixedly installed outside the drum and the cleaning liquid wets the cleaning cloth from the outside to the inside, usually when the cleaning cloth is not fully wetted, the cleaning liquid will be quickly recovered into the sewage tank as the cleaning cloth rotates, and the use efficiency of the cleaning liquid is low; in addition, the cleaning cloth is not wetted evenly, which easily causes obvious water stains and water marks on the ground, and the cleaning effect on the ground is uneven. In the method where the nozzle is fixed inside the drum and the cleaning liquid wets the cleaning cloth from the inside to the outside, due to the fixed structure of the nozzle, there are quite long waterless areas (areas not wetted by the cleaning liquid) at both ends of the axial direction of the drum, and the cleaning cloth is unevenly wetted. The phenomenon of the cleaning cloth being wet in the middle and dry on both sides is obvious, and the effective cleaning area of ​​the cleaning cloth is small.

[0080] Therefore, the above two cleaning liquid spraying methods both have the problem of uneven and insufficient wetting of the cleaning cloth, which easily causes obvious water stains and water marks on the ground, and has a poor cleaning effect on the ground.

[0081] In view of this, the embodiments of the present application provide a roller brush assembly, a cleaning head and a cleaning device, wherein the roller brush assembly includes a roller brush body, wherein the roller of the roller brush body has an equal-diameter main cylinder portion in contact with the surface to be cleaned, and the wiping piece is wrapped on the outer surface of the equal-diameter main cylinder portion. By providing at least one axial flow-equalizing cavity in the cylinder wall of the roller, the axial flow-equalizing cavity extends along the axial direction of the roller to completely cover the equal-diameter main cylinder portion. In addition, a plurality of water outlet holes are provided on the outer wall surface of the roller, and the plurality of water outlet holes are distributed at different axial positions of the equal-diameter main cylinder portion, and each water outlet hole is connected to the axial flow-equalizing cavity.

[0082] In this way, the axial flow cavity allows the cleaning liquid to flow through the entire axial area of ​​the equal-diameter main cylinder of the roller, and the cleaning liquid can be sprayed onto the wiping element through each water outlet, wetting the wiping element from the inside to the outside, and evenly wetting each axial area of ​​the wiping element. Therefore, the wiping element is evenly and fully wetted, the effective cleaning area of ​​the wiping element is large, and water stains and water marks on the surface to be cleaned can be avoided, thereby improving the cleaning effect of the roller brush assembly.

[0083] In addition, when the roller brush assembly is used in a scenario where hot water or steam is introduced, the design of the axial flow equalization cavity with multiple water outlet holes can also effectively solve the problem of uneven hot water or steam in the drum, and can improve the uniformity of cleaning and sterilization of the surface to be cleaned by hot water or steam.

[0084] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0085] The present application embodiment provides a cleaning device, which can be a self-propelled cleaning device, a vertical cleaning device, or a handheld cleaning device, etc., which is not specifically limited in the present embodiment. For example, the cleaning device can be a floor scrubber or a floor sweeper or a vacuum cleaner with a floor cleaning function.

[0086] The cleaning device can be used in conjunction with a cleaning stand, which can be used to clean the cleaning device or to charge the cleaning device. The cleaning device and the cleaning stand together constitute a cleaning system. Alternatively, the cleaning device can also be used in conjunction with a base station, which can be used to remove dust from the mobile cleaning device or to charge the cleaning device. The cleaning device and the base station together constitute a cleaning system.

[0087] The cleaning device may include a cleaning head and a body, wherein the cleaning head may be connected to the bottom end of the body. The cleaning head is used to clean the surface to be cleaned, and the body is used for the user to hold and control the operation of the cleaning head.

[0088] Figure 1 This is a schematic diagram of the structure of the roller brush assembly provided in the embodiment of the present application. Figure 1 As shown, the cleaning head may include a floor brush housing (not shown in the figure) and a roller brush assembly, wherein the roller brush assembly is mounted on the floor brush housing and is used for cleaning the floor.

[0089] For example, in the forward direction of the cleaning head, the roller brush assembly can be located at the front side of the floor brush housing. In this way, when cleaning, the roller brush assembly first contacts the surface to be cleaned (such as the floor). The roller brush assembly rolls along the surface to be cleaned, which can ensure smooth movement of the cleaning head. In addition, the surface to be cleaned can be fully cleaned.

[0090] Figure 2 for Figure 1 Exploded view of the roller brush assembly shown. Figure 2As shown, the roller brush assembly may include a roller brush body 100 and a wiper 200. The roller brush body 100 serves as the main support structure of the roller brush assembly, and the roller brush body 100 may be cylindrical. The wiper 200 is wrapped around the outer wall of the roller brush body 100. When cleaning, the roller brush body 100 drives the wiper 200 to rotate, and the wiper 200 rolls along the surface to be cleaned, contacts and rubs with the surface to be cleaned, so as to clean the surface to be cleaned.

[0091] The roller brush body 100 may be a hollow structure, and some components may be accommodated inside the roller brush body 100. For example, a driving motor may be installed inside the roller brush body 100 to drive the roller brush body 100 to rotate, thereby driving the wiping member 200 to roll along the surface to be cleaned.

[0092] The material of the wiping member 200 may include at least one of flannel, cotton cloth, sponge, soft bristles or hard bristles, which is not specifically limited in this embodiment.

[0093] Continue to refer to Figure 2 The roller brush assembly may further include a roller brush handle 300. The figure only shows the roller brush handle 300 at one end of the roller brush body 100. It is understood that the other end of the roller brush body 100 is also connected to the roller brush handle 300. In other words, the roller brush handles 300 are connected to both axial ends of the roller brush body 100. The roller brush handle 300 may be connected to the floor brush housing so that the roller brush assembly can be installed on the floor brush housing through the roller brush handle 300.

[0094] Figure 3 A schematic structural diagram of the roller brush body provided in an embodiment of the present application. Figure 4 for Figure 3 Exploded structural diagram of the roller brush body. Figure 5 A partial cross-sectional view of the roller brush assembly provided in an embodiment of the present application.

[0095] Combination Figure 3 and Figure 4 As shown, the roller brush body 100 may include a roller 110 and an end cap 120. The roller 110 is the main structure of the roller brush body 100. The roller 110 is cylindrical as a whole. The wiping member 200 is wrapped outside the roller 110, and the interior of the roller 110 is hollow. The end cap 120 is installed at both ends of the axial direction of the roller 110. The end cap 120 and the roller 110 together enclose a receiving space so that some components of the roller brush body 100 can be installed in the roller 110. The end cap 120 can enclose a sealed space with the roller 110 to seal the internal space of the roller 110 to ensure the reliability and safety of the components in the roller brush body 100.

[0096] Furthermore, the roller brush body 100 is connected to the roller brush handle 300 through the end cover 120, and the roller brush body 100 is installed on the roller brush handle 300, and the roller brush body 100 is rotated relative to the roller brush handle 300. It should be noted that, Figure 4 Only the end cover 120 located at one axial end of the drum 110 is fully shown, while the end cover 120 located at the other axial end of the drum 110 only shows the outer ring structure of the end cover 120.

[0097] Reference Figure 5 As shown, a receiving groove may be formed at one end of the end cover 120 facing the roller brush handle 300, and the end of the roller brush handle 300 extends into the receiving groove to be connected to the roller brush body 100. For example, a bearing 121 may be provided between the outer wall of the roller brush handle 300 and the inner wall of the end cover 120, and the bearing 121 enables the end cover 120 to rotate relative to the roller brush handle 300.

[0098] The drum 110 may include a main cylinder portion 111 of equal diameter (see Figure 3 or Figure 4 ), the equal-diameter main cylinder 111 is a cylinder having a consistent diameter at all locations in the axial direction of the roller 110. The roller brush body 100 contacts the surface to be cleaned through the area where the equal-diameter main cylinder 111 is located, and the wiping member 200 can be wrapped outside the equal-diameter main cylinder 111, and the wiping member 200 can, for example, completely cover the equal-diameter main cylinder 111.

[0099] It should be noted that the roller 110 is designed based on the equal-diameter main cylinder 111, and in the axial direction of the roller 110, the equal-diameter main cylinder 111 occupies most or even all of the space of the roller 110, so as to fully utilize the structural space of the roller brush body 100 and ensure the effective cleaning area of ​​the roller brush body 100.

[0100] Reference Figure 3 and Figure 4 As shown, as an embodiment, the two ends of the drum 110 can be designed as a closed structure, and the drum 110, except for the closed parts at the two ends, has the same diameter main cylinder 111. By designing the closed structure at both ends of the drum 110, it is convenient to assemble and connect the drum 110 and the end cover 120. The closed structure can provide positioning for the end cover 120, and can also make the end cover 120 and the drum 110 more tightly connected. As another embodiment, the drum 110 can maintain a uniform diameter as a whole, and all axial parts of the drum 110 are the same diameter main cylinder 111. The embodiment of the present application is not limited to this.

[0101] The following are Figure 3 and Figure 4 The description is given by taking the example that the two ends of the drum 110 shown in the figure are provided with closing structures, and the rest of the drum 110 are all main cylinder parts 111 of equal diameter.

[0102] Continue to refer to Figure 3 and Figure 4 In this embodiment, the drum 110 is provided with an axial flow equalizing chamber 112, which extends along the axial direction of the drum 110, and the axial flow equalizing chamber 112 can completely cover the equal-diameter main cylinder portion 111. In addition, a water inlet hole 113 is provided on the inner wall surface of the drum 110, and the water inlet hole 113 is opened in the area where the axial flow equalizing chamber 112 is located, and the water inlet hole 113 is connected to the axial flow equalizing chamber 112. A plurality of water outlet holes 114 are provided on the outer wall surface of the drum 110, and each water outlet hole 114 is distributed at a different axial position of the equal-diameter main cylinder portion 111. Each water outlet hole 114 is opened in the area where the axial flow equalizing chamber 112 is located, and each water outlet hole 114 is connected to the axial flow equalizing chamber 112.

[0103] Cleaning liquid at room temperature, cleaning liquid at a higher temperature, hot water, steam and other fluids can enter the axial flow-distributing cavity 112 from the water inlet hole 113. The fluid flows along the axial flow-distributing cavity 112 and is sprayed to the outside of the drum 110 from the water outlet holes 114 to wet the wiping member 200 wrapped around the outside of the drum 110. The wetted wiping member 200 moves along the drum 110 to clean the surface to be cleaned, so that the stains on the surface to be cleaned can be cleaned more quickly and more effectively.

[0104] In this way, the axial flow-equalizing cavity 112 of the equal-diameter main cylinder 111 is completely covered, so that the fluid can flow through all axial regions of the equal-diameter main cylinder 111. A plurality of water outlets 114 are arranged in cooperation at different axial positions of the equal-diameter main cylinder 111, and the fluid is sprayed outward through each water outlet 114 at the same time, so that the fluid can evenly wet all axial regions of the wiping member 200. Compared with the existing roller brushes with long water-free areas at both ends, the wiping member 200 is wetted more evenly in this embodiment, and there is no phenomenon that the wiping member 200 is wet in the middle and dry on both sides, so the wiping member 200 can maximize the effective cleaning area.

[0105] At the same time, since the axial flow-equalizing chamber 112 is disposed on the roller 110, the fluid is sprayed outward from the roller 110, from the inner surface of the wiping member 200 (the side surface of the wiping member 200 facing the roller 110) to the outer surface of the wiping member 200 (the side surface of the wiping member 200 facing away from the roller 110), so as to wet the wiping member 200. In this way, the wiping member 200 can be wetted more fully, and the fluid fills the entire thickness space of the wiping member 200. Compared with the existing method of wetting the wiping member 200 from the outside to the inside, the water only exists on the surface of the wiping member 200, and the water is easily thrown out when the roller brush rotates. In this embodiment, the wiping member 200 is wetted from the inside to the outside, so that the wiping member 200 can be wetted more fully. The inside of the wiping member 200 is continuously kept wetted by the fluid, and the wiping member 200 is not easy to lose water, so the cleaning effect on the surface to be cleaned is more thorough.

[0106] Therefore, this embodiment can achieve uniform wetting of the wiping member 200 and more adequate wetting of the wiping member 200 by providing an axial flow equalization cavity 112 that completely covers the equal-diameter main cylinder 111 in the axial direction, providing a water inlet hole 113 on the inner wall of the drum 110, and providing a plurality of axially distributed water outlet holes 114 on the outer wall of the drum 110. It can maximize the effective cleaning area of ​​the wiping member 200, significantly improve the cleaning effect of the wiping member 200, and avoid residual water stains and water marks on the surface to be cleaned.

[0107] When the roller brush assembly is used in a scene where hot water or steam is used to clean the surface to be cleaned, the hot water or steam flows along the axial flow cavity 112 and sprays out through each water outlet 114, which can evenly and fully wet the wiper 200. Thus, the wiper 200 can clean and sterilize the surface to be cleaned more evenly and thoroughly.

[0108] On this basis, the present embodiment arranges the axial flow-equalizing chamber 112 in the wall of the drum 110, and the axial flow-equalizing chamber 112 does not occupy the space in the drum 110 alone. The space in the drum 110 is saved, and there is more space in the drum 110 for arranging other components, which is beneficial to the layout design of the roller brush assembly. Furthermore, there is no need to add additional components or structures to form the axial flow-equalizing chamber 112, which can reduce the manufacturing cost of the roller brush assembly and achieve lightweight roller brush assembly. In addition, forming the axial flow-equalizing chamber 112 in the wall of the drum 110 is equivalent to forming a reinforcing rib structure in the wall of the drum 110, which is beneficial to enhancing the structural strength of the drum 110 and improving the reliability of the roller brush body 100.

[0109] Continue to refer to Figure 3 and Figure 4 , a plurality of axial flow balancing cavities 112 may be provided in the cylinder wall of the drum 110, and each axial flow balancing cavities 112 may be evenly spaced along the circumference of the drum 110. Each axial flow balancing cavity 112 evenly divides the drum 110 into a plurality of fluid spraying areas in the circumferential direction. With the cooperation of each water outlet hole 114 spaced apart in the circumferential direction, all circumferential areas of the wiper 200 can be wetted. Each axial flow balancing cavity 112 completely covers the equal-diameter main cylinder portion 111 in the axial direction of the drum 110, and with the cooperation of each water outlet hole 114 provided at different axial positions, all axial areas of the wiper 200 can be wetted. Thus, uniform wetting of all areas of the wiper 200 is achieved, and in the process of the wiper 200 rolling and rubbing the surface to be cleaned, a more uniform and thorough cleaning effect is achieved on the surface to be cleaned.

[0110] For example, three axial flow balancing cavities 112 may be provided on the cylinder wall of the drum 110, and the three axial flow balancing cavities 112 are evenly spaced along the circumference of the drum 110. The three axial flow balancing cavities 112 are distributed on the drum 110 at 120° in pairs, which can ensure that the fluid can be sprayed on the drum 110 at 360°, and the wiper 200 can be evenly and fully wetted. Of course, two, four or five axial flow balancing cavities 112 may also be evenly spaced along the circumference on the cylinder wall of the drum 110, and this embodiment does not specifically limit this.

[0111] Figure 6 for Figure 3 An exploded structural diagram of a roller brush body from one perspective. Figure 7 for Figure 3 Another perspective exploded structural diagram of the roller brush body. Figure 8 for Figure 3 A cross-sectional schematic diagram of the roller brush body in FIG.

[0112] Reference Figure 6 and Figure 7 As shown, as for the specific arrangement of the axial flow-equalizing chamber 112 on the drum 110, the drum 110 of this embodiment may include a cylinder 115 and a water chamber cover 116, the cylinder 115 constituting the main structure of the drum 110, and the water chamber cover 116 being detachably mounted on the cylinder 115. A water chamber groove 1150 is formed on the cylinder 115, and the water chamber cover 116 is disposed on the water chamber groove 1150, and the water chamber cover 116 and the water chamber groove 1150 together enclose the axial flow-equalizing chamber 112.

[0113] By designing a water cavity groove 1150 on the outer wall surface of the cylinder 115 itself, the main structure of the axial flow-equalizing cavity 112 is formed. Then, a water cavity cover 116 is sealed on the water cavity groove 1150 on the outer wall surface of the cylinder 115 to seal the water cavity groove 1150 and form a complete axial flow-equalizing cavity 112. In this way, the aforementioned reinforcing rib structure is formed in the water cavity groove 1150, which can strengthen the structural strength of the cylinder 115 itself and have a more significant effect on improving the overall reliability of the drum 110.

[0114] In addition, the water inlet hole 113 can be formed at the bottom of the water cavity groove 1150, which is convenient for processing and manufacturing the water inlet hole 113. The water inlet hole 113 is directly formed on the cylinder 115, which is also convenient for sealing the water inlet hole 113. The water inlet path of the axial flow equalization cavity 112 can only go through one sealing process, and the sealing method is simple. The sealing reliability of the water inlet of the axial flow equalization cavity 112 is high, which can significantly reduce the risk of leakage of the axial flow equalization cavity 112.

[0115] In addition, the water outlet hole 114 can be disposed on the water cavity cover 116 , and the water cavity cover 116 is a single-layer solid structure, so that the processing and manufacturing of the water outlet hole 114 is simpler, and the position accuracy of the water outlet hole 114 is higher.

[0116] Among them, a fluid diversion channel 1121 is arranged in the axial flow equalization chamber 112, and the water chamber cover 116 and the water chamber groove 1150 together form the fluid diversion channel 1121. The fluid diversion channel 1121 can extend to the axial ends of the axial flow equalization chamber 112 to achieve fluid flow through all axial regions of the axial flow equalization chamber 112. Each water outlet 114 arranged on the water chamber cover 116 is connected to the fluid diversion channel 1121. By coordinating the water outlet holes 114 at different axial positions of the axial flow equalization chamber 112, the fluid can flow along the fluid diversion channel 1121 and spray out from each water outlet hole 114, so as to uniformly and fully wet all axial regions of the wiper 200 from the inside to the outside.

[0117] Specifically, refer to Figure 6 As shown, the bottom of the water cavity groove 1150 on the outer wall of the cylinder 115 may be formed with a diversion channel wall 1151 , which protrudes from the bottom of the water cavity groove 1150 and encloses a fluid diversion channel 1121 .

[0118] In addition, some other protruding structures can be provided on the bottom of the water cavity groove 1150. These protruding structures are distributed on the periphery of the diversion channel wall 1151. The protruding structures and the adjacent parts of the diversion channel wall 1151, or the protruding structures and the adjacent parts of the protruding structures, together enclose the diversion channel sealing groove 1152.

[0119] Since the flow-dividing channel wall 1151 and other protruding structures are protruding from the bottom of the water cavity 1150, it is equivalent to forming a protruding reinforcing rib structure at the bottom of the water cavity 1150, and these reinforcing rib structures can enhance the structural strength of the cylinder 115, thereby enhancing the overall stability and reliability of the drum 110.

[0120] Reference Figure 7 As shown, the inner surface of the water cavity cover 116 (the surface of the water cavity cover 116 on one side facing the water cavity groove 1150) is formed with a diverter channel sealing portion 1161. The diverter channel sealing portion 1161 protrudes on the inner surface of the water cavity cover 116, and the diverter channel sealing portion 1161 corresponds to the diverter channel sealing groove 1152 in the water cavity groove 1150.

[0121] Reference Figure 8 As shown, the flow-dividing channel sealing portion 1161 on the water cavity cover 116 extends into the flow-dividing channel sealing groove 1152 in the water cavity groove 1150, and the flow-dividing channel sealing portion 1161 is in close contact with the groove bottom of the flow-dividing channel sealing groove 1152. In this way, the flow-dividing channel sealing portion 1161 is arranged on both sides of the flow-dividing channel wall 1151 to enclose a sealed fluid flow-dividing channel 1121.

[0122] Exemplarily, at least the shunt channel sealing portion 1161 on the water cavity cover 116 is an elastic portion, that is, at least the shunt channel sealing portion 1161 is made of elastic material. In this way, the shunt channel sealing portion 1161 has good elasticity, and the shunt channel sealing portion 1161 can be tightly fitted on the bottom of the shunt channel sealing groove 1152 to ensure the sealing performance of the shunt channel sealing portion 1161 to the fluid shunt channel 1121. For example, the entire water cavity cover 116 can be made of elastic material, and the water cavity cover 116 can be tightly fitted on the bottom of the water cavity groove 1150, or there is a certain assembly gap between the water cavity cover 116 and the bottom of the water cavity groove 1150.

[0123] In other examples, the shunt channel sealing groove 1152 may also be formed on the inner surface of the water cavity cover 116. The other protruding structures on the bottom of the water cavity groove 1150 are used to form the shunt channel sealing portion 1161, and the shunt channel sealing portion 1161 may be arranged around the outer periphery of the shunt channel wall 1151. The shunt channel sealing portion 1161 in the water cavity groove 1150 extends into the shunt channel sealing groove 1152 on the water cavity cover 116, and the shunt channel sealing portion 1161 is in close contact with the bottom of the shunt channel sealing groove 1152. This embodiment is not limited to this.

[0124] Fig. 9 This is a front view of the cylinder provided in the embodiment of the present application. Fig. 9 As shown, the figure shows the area where the water cavity groove 1150 is located on the outer wall of the cylinder 115. The water cavity groove 1150 constitutes the main structure of the axial flow equalization cavity 112, and the diversion channel wall 1151 in the water cavity groove 1150 surrounds the fluid diversion channel 1121.

[0125] Specifically, the fluid diversion channel 1121 may include a main channel 11211 and at least two branch channels 11212. The head end of the main channel 11211 may be close to one axial end of the axial flow equalization chamber 112, and the end of the main channel 11211 extends to the other axial end of the axial flow equalization chamber 112. The head end of each branch channel 11212 is connected to the main channel 11211, and the end of each branch channel 11212 is distributed at different axial positions of the axial flow equalization chamber 112. The water inlet hole 113 opened on the inner wall surface of the drum 110 may be set at the head end of the main channel 11211, and the water outlet holes 114 on the water cavity cover 116 may be correspondingly set at the end of each branch channel 11212 (combined with Figure 6 and Fig. 9 as shown).

[0126] The fluid can enter the main channel 11211 of the fluid flow channel 1121 from the water inlet 113 on the inner wall of the drum 110, and the fluid flows along the main channel 11211. After that, the fluid is divided into each branch channel 11212, and finally sprayed out from the water outlet 114 set at the end of each branch channel 11212.

[0127] By designing the fluid diversion channel 1121 as a main channel 11211 plus each branch channel 11212, it can be ensured that the fluid diversion channel 1121 has sufficient distribution space in the axial flow equalization chamber 112, so that the fluid diversion channel 1121 occupies the axial space of the axial flow equalization chamber 112. Among them, the main channel 11211 determines the only path for the fluid to enter the axial flow equalization chamber 112, and the water inlet 113 is set at the head end of the main channel 11211, which can ensure that the fluid flows smoothly and regularly along the path from the main channel 11211 to each branch channel 11212. In addition, each branch channel 11212 divides a plurality of fluid flow paths, and the plurality of fluid flow paths transport the fluid to different axial parts of the axial flow equalization chamber 112. Then, each water outlet 114 is correspondingly set at the end of each branch channel 11212, so that the fluid is sprayed out from different axial parts of the axial flow equalization chamber 112 to uniformly wet all axial areas of the wiper 200.

[0128] Continue to refer to Fig. 9 As an implementation mode, the end of the main channel 11211 can extend to the axial middle of the axial flow equalizing chamber 112, and the end of the main channel 11211 is divided into two branch channels 11212, and the two branch channels 11212 are respectively located on both sides of the end of the main channel 11211, and the two branch channels 11212 extend to both ends of the axial flow equalizing chamber 112. Both branch channels 11212 can include a main branch section 11212a and a plurality of branch sections 11212b, and the main branch section 11212a extends from the end of the main channel 11211, and each main branch section 11212a is further divided into a plurality of branch sections 11212b. In this way, the ends of different branch sections 11212b extend to different axial positions of the axial flow equalizing chamber 112, and each water outlet 114 can be correspondingly arranged at the end of each branch section 11212b.

[0129] As for the specific layout of the fluid flow distribution channel 1121, for the convenience of description, the present embodiment defines the two sides of the axial flow equalization chamber 112 in the circumferential direction of the drum 110 as its first side and second side respectively. Among them, the main channel 11211 can mainly extend along the first side of the axial flow equalization chamber 112, and the main channel 11211 extends from the first side of the axial flow equalization chamber 112 to the second side of the axial flow equalization chamber 112. The main branch section 11212a of the branch channel 11212 can be located on the second side of the axial flow equalization chamber 112, and the branch section 11212b of the branch channel 11212 extends from the second side of the axial flow equalization chamber 112 to the first side of the axial flow equalization chamber 112.

[0130] In this arrangement, the main branch sections 11212a of the main channel 11211 and the branch channel 11212 are respectively located on both sides of the axial flow equalization cavity 112, and there is a large space between the main channel 11211 and the main branch section 11212a of the branch channel 11212, which is convenient for the arrangement of the branch section 11212b of the branch channel 11212. The branch section 11212b of the branch channel 11212 has sufficient extension space, and can be branched step by step on the basis of the main branch section 11212a to form a large number of branch sections 11212b, so as to facilitate the arrangement of multiple water outlet holes 114 corresponding to each branch section 11212b, thereby improving the flow equalization effect of the axial flow equalization cavity 112.

[0131] Specifically, the main channel 11211 may include a main section 11211a and a tail section 11211b, and the main section 11211a and the tail section 11211b are arranged in sequence from the head end of the main channel 11211 to the end of the main channel 11211. The main section 11211a of the main channel 11211 may extend along the first side of the axial flow equalization chamber 112, and the tail section 11211b of the main channel 11211 extends from the first side of the axial flow equalization chamber 112 to the second side of the axial flow equalization chamber 112. For example, the tail section 11211b of the main channel 11211 may be connected to the main channel 11211 in an arc-shaped transition and extend approximately vertically to the second side of the axial flow equalization chamber 112. In this way, the axial space of the axial flow equalization chamber 112 occupied by the tail section 11211b of the main channel 11211 is smaller, and more layout space can be reserved for the branch section 11212b of the branch channel 11212.

[0132] The head end of the main branch section 11212a of the branch channel 11212 is connected to the end of the tail section 11211b of the main channel 11211, and the main branch section 11212a of the branch channel 11212 extends along the second side of the axial flow equalization chamber 112. The head ends of the branch sections 11212b of the branch channel 11212 are all connected to the main branch section 11212a, and the branch sections 11212b formed by step-by-step branching extend toward the first side of the axial flow equalization chamber 112, and the ends of the branch sections 11212b are distributed at different axial positions of the axial flow equalization chamber 112. The ends of the branch sections 11212b can be located on the same straight line in the axial direction of the cylinder 115, and matching therewith, the water outlets 114 on the water cavity cover 116 can be located on the same straight line in the axial direction of the drum 110.

[0133] by Fig. 9 As shown in the example, the fluid flow channel 1121 can be designed in a way that one is divided into two, two is divided into four, or four is divided into eight. For example, the branch channel 11212 is branched step by step to finally divide into 8 branch segments 11212b, and the ends of the 8 branch segments 11212b are respectively located at different axial positions of the axial flow chamber 112. At this time, to match it, the water chamber cover 116 can be provided with 8 water outlet holes 114, and the 8 water outlet holes 114 are respectively located at the ends of the 8 branch segments 11212b (see Figure 6 ). When the drum 110 is provided with three axial flow equalization cavities 112 evenly spaced along the circumferential direction, a total of 24 water outlet holes 114 may be distributed on the drum 110 .

[0134] Of course, in other examples, the fluid diversion channel 1121 can also be designed in other branching ways, which is not limited in the present embodiment. For example, in two circumferentially adjacent axial flow equalization chambers 112, the fluid diversion channel 1121 in one axial flow equalization chamber 112 divides into 8 branch segments 11212b, and the fluid diversion channel 1121 in the other axial flow equalization chamber 112 divides into 7 branch segments 11212b. At this time, to match it, in two circumferentially adjacent water cavity covers 116 on the drum 110, one water cavity cover 116 is provided with 8 water outlet holes 114, and the other water cavity cover 116 is provided with 7 water outlet holes 114. When the drum 110 is provided with four axial flow equalization chambers 112 evenly spaced along the circumference, a total of 30 water outlet holes 114 can be distributed on the drum 110.

[0135] Fig.10 for Figure 3 A partial exploded structural diagram of a roller brush body from one perspective. Fig.11 for Figure 3 Another perspective of the partial decomposition structure of the roller brush body. Fig.10 and Fig.11As shown, the roller brush body 100 is further provided with a fluid distribution member 130, and the fluid distribution member 130 can be fixed in the drum 110. The fluid distribution member 130 is provided with a fluid distribution port 1311, and the fluid distribution port 1311 is connected with the water inlet hole 113 provided on the inner wall surface of the drum 110. The fluid first enters the fluid distribution member 130, then flows from the fluid distribution port 1311 to the water inlet hole 113 on the inner wall surface of the drum 110, and then enters the axial flow equalization cavity 112 in the cylinder wall of the drum 110 through the water inlet hole 113.

[0136] The fluid distribution ports 1311 on the fluid distribution member 130 are arranged in one-to-one correspondence with the axial flow equalization chambers 112 in the cylinder wall of the drum 110. When a plurality of axial flow equalization chambers 112 are evenly spaced along the circumferential direction in the cylinder wall of the drum 110, a plurality of fluid distribution ports 1311 may also be provided on the fluid distribution member 130, and each fluid distribution port 1311 may be evenly spaced along the circumferential direction of the fluid distribution member 130, and each fluid distribution port 1311 is connected in one-to-one correspondence with the water inlet holes 113 of each axial flow equalization chamber 112.

[0137] During the rotation of the roller brush assembly, the fluid enters the fluid distribution member 130. Under the action of centrifugal force, the fluid distribution member 130 evenly distributes the fluid to each fluid distribution port 1311, so that the fluid entering the roller 110 is evenly distributed to each axial flow cavities 112. Therefore, the fluid sprayed out of each axial flow cavities 112 can evenly wet each circumferential area of ​​the wiper 200, so as to improve the uniformity of the cleaning effect of the wiper 200 on the surface to be cleaned.

[0138] As mentioned above, the water inlet 113 is arranged at the head end of the main channel 11211 of the axial flow equalization chamber 112, and the head end of the main channel 11211 is close to one end of the axial flow equalization chamber 112. Therefore, the water inlet 113 can be close to the end of the drum 110, and the fluid distribution member 130 can also be correspondingly arranged at the end of the drum 110. In this regard, the fluid distribution member 130 can be connected to the end cover 120, and the fluid distribution member 130 can be specifically located on the side of the end cover 120 facing the inside of the drum 110.

[0139] Such a configuration facilitates the fixing of the fluid distribution member 130, and no additional structure or component is required to fix the fluid distribution member 130, which is beneficial to saving the manufacturing cost of the roller brush body 100. In addition, the end cap 120 located at the end of the roller 110 is used to position the fluid distribution member 130, so that the fluid distribution member 130 is fixed to the end of the roller 110, and the fluid distribution port 1311 on the fluid distribution member 130 is correspondingly connected to the water inlet hole 113 of the axial flow equalization cavity 112.

[0140] Reference Fig.10As shown, the end of the drum 110 facing the fluid distribution member 130 is provided with a sealing portion 117, and the sealing portion 117 blocks the interior of the drum 110. The fluid distribution member 130 can be sealed and connected to the sealing portion 117 (see Figure 5 As shown in the figure, the fluid distribution member 130 and the sealing portion 117 together form a fluid distribution chamber 101. The fluid distribution port 1311 is connected to the fluid distribution chamber 101, and the fluid distribution chamber 101 is connected to the water inlet hole 113 of the axial flow equalization chamber 112, or in other words, the fluid distribution chamber 101 is connected between the fluid distribution port 1311 and the water inlet hole 113. The fluid enters the fluid distribution chamber 101 through the fluid distribution port 1311, and then enters the axial flow equalization chamber 112 from the fluid distribution chamber 101 through the water inlet hole 113.

[0141] In this way, the fluid distribution chamber 101 is surrounded by the fluid distribution member 130 and the sealing portion 117, and there is no need to design a sealed flow channel for the fluid to flow on the fluid distribution member 130 itself, and the design and processing of the fluid distribution member 130 is simpler. The fluid distribution chamber 101 is directly connected to the water inlet hole 113 on the inner wall surface of the drum 110, and there is no need to seal and connect the fluid distribution member 130 and the water inlet hole 113. The sealed installation of the fluid distribution member 130 in the drum 110 is simpler, and the installation accuracy requirement is lower.

[0142] Exemplarily, a fluid distribution groove 1171 is provided on one side surface of the sealing portion 117 facing the fluid distribution member 130, and a plurality of water inlet holes 113 are provided on the inner side wall of the fluid distribution groove 1171, and each water inlet hole 113 is respectively connected to each axial flow equalization cavity 112. The fluid distribution member 130 has a fluid distribution portion protruding toward the sealing portion 117, and the fluid distribution portion extends into the fluid distribution groove 1171, for example, the fluid distribution portion abuts against the groove bottom of the fluid distribution groove 1171. A plurality of fluid distribution ports 1311 are evenly spaced along the circumferential direction on the fluid distribution portion, and the fluid distribution portion and the fluid distribution groove 1171 together enclose a plurality of fluid distribution cavities 101, and each fluid distribution cavity 101 is respectively connected to each fluid distribution port 1311.

[0143] In addition, a sealing ring 118 may be provided between the fluid distribution member 130 and the sealing portion 117, and the sealing ring 118 may be arranged around the periphery of the fluid distribution chamber 101 to seal the fluid distribution chamber 101. For example, the sealing ring 118 is arranged around the periphery of the fluid distribution groove 1171, and the shape of the sealing ring 118 may match the contour of the fluid distribution groove 1171.

[0144] Fig.12 This is a partial exploded structural diagram of the roller brush assembly provided in the embodiment of the present application. Fig.12As shown, in some embodiments, the fluid distributing member 130 may include a distributing member body 131 and a sealing member 132. The distributing member body 131 may be fixedly connected to the end cover 120, and a fluid distributing port 1311 is provided on the distributing member body 131. The sealing member 132 and the distributing member body 131 together enclose a fluid inlet cavity 102, and a fluid inlet 1321 is provided on the sealing member 132, and the fluid inlet 1321 is connected to the fluid inlet cavity 102. For example, the distributing member body 131 is sealedly connected to the sealing portion 117 in the drum 110 through the sealing ring 118, and the sealing member 132 is provided on the side of the distributing member body 131 facing the end cover 120, and the sealing member 132 is sealedly connected to the distributing member body 131.

[0145] The fluid enters the fluid inlet 1321 on the seal 132 into the fluid inlet cavity 102, and the fluid in the fluid inlet cavity 102 flows out from each fluid distribution port 1311. The fluid flowing out of each fluid distribution port 1311 enters each fluid distribution cavity 101, and then flows from each fluid distribution cavity 101 to each water inlet hole 113, and finally enters each axial flow equalization cavity 112.

[0146] The fluid distribution component 130 is formed by arranging the distribution component body 131 and the sealing component 132. The distribution component body 131 is easy to process to form the fluid distribution port 1311, and the sealing component 132 can ensure the sealing performance of the fluid distribution component 130 to the fluid. The additional distribution component body 131 is sealed and connected with the sealing part 117 in the drum 110, which can fully ensure the sealing performance before the fluid enters the axial flow equalization cavity 112, and prevent the cleaning liquid or cleaning steam from overflowing from the gap.

[0147] As for how to provide cleaning liquid or cleaning steam to the fluid distribution part 130, when the fluid distribution part 130 is connected to the end cover 120, the roller brush handle 300 can be used to transfer fluid to the fluid distribution part 130. The roller brush handle 300 is rotatably connected to the end cover 120, the distance between the roller brush body 100 and the fluid distribution part 130 is very close, and the two are coaxially arranged, which is convenient for using the roller brush handle 300 to transport fluid to the fluid distribution part 130. In addition, the roller brush handle 300 is directly used to transport fluid without the need to set up additional components specifically for transporting fluid. The structural design of the roller brush assembly is simpler and the manufacturing cost of the roller brush assembly is lower. In addition, the roller brush handle 300 is connected to the floor brush shell, and the roller brush handle 300 can be used as a part of the appearance of the cleaning head, and it is also easy to provide fluid to the roller brush handle 300.

[0148] In this regard, the roller brush handle 300 may be provided with a fluid inlet portion 301 and a fluid supply portion 302 (see Fig.12 ), a fluid supply cavity 303 may be formed inside the roller brush handle 300 (see Figure 5), the fluid inlet portion 301 and the fluid supply portion 302 are both connected to the fluid supply cavity 303. The fluid inlet portion 301 is used to supply fluid into the fluid supply cavity 303, and the fluid supply portion 302 is used to transport the fluid in the fluid supply cavity 303 to the drum 110, so as to provide fluid to the axial flow equalization cavity 112.

[0149] The fluid supply portion 302 can be connected to the fluid inlet 1321 on the fluid distribution member 130. The fluid enters the fluid supply cavity 303 of the roller brush handle 300 from the fluid inlet portion 301, and then enters the fluid distribution member 130 from the fluid supply portion 302 through the fluid inlet 1321.

[0150] Exemplarily, the fluid inlet portion 301 and the fluid supply portion 302 may be joints protruding on the inner side wall of the roller brush handle 300 (the side wall of the roller brush handle 300 facing the roller brush body 100). The fluid inlet portion 301 may be inserted into the fluid inlet 1321 provided on the sealing member 132 of the fluid distribution member 130, so as to transport the fluid to the fluid inlet cavity 102 of the fluid distribution member 130 through the fluid inlet portion 301.

[0151] The fluid inlet 301 can pass through the avoidance hole provided on the end cover 120 and extend into the fluid distribution member 130. A bearing 121 can also be provided between the outer wall of the fluid inlet 301 and the inner wall of the avoidance hole, and the bearing 121 can also support the end cover 120 to rotate relative to the roller brush handle 300. In addition, the bearing 121 allows the fluid inlet 301 to pass through the end cover 120 stably, which can prevent the fluid inlet 301 from shaking, and ensure the sealing performance of the fluid entering the roller brush body 100.

[0152] Fig.13 A diagram of the exploded structure of the roller brush handle provided in an embodiment of the present application from one perspective. Fig.14 This is an exploded structural diagram of another perspective of the roller brush handle provided in the embodiment of the present application. Fig.13 and Fig.14 As shown, in order to facilitate the formation of the fluid supply cavity 303 in the roller brush handle 300, the roller brush handle 300 may include a handle body 310 and a handle cover 320. The handle body 310 may be connected to the roller brush body 100, and the handle cover 320 may be arranged on a side of the handle body 310 away from the roller brush body 100. A handle groove 311 is provided on a side of the handle body 310 facing the handle cover 320, the handle cover 320 seals the handle groove 311, and the handle cover 320 and the handle groove 311 together enclose the fluid supply cavity 303.

[0153] Specifically, the bottom of the handle groove 311 of the handle body 310 may have a raised annular guide wall 3111, and the handle cover 320 and the annular guide wall 3111 together form a fluid supply channel 304, and the fluid supply channel 304 is used to allow fluid to pass through. Among them, the end of the fluid supply channel 304 away from the roller brush body 100 is the fluid inlet end, and the fluid inlet part 301 can be arranged at this end of the fluid supply channel 304. The end of the fluid supply channel 304 close to the roller brush body 100 is the fluid outlet end, and the fluid supply part 302 can be arranged at this end of the fluid supply channel 304. In this way, the fluid enters from one end of the fluid supply channel 304 and then flows out from the other end of the fluid supply channel 304, so that the fluid can flow smoothly in the fluid supply channel 304.

[0154] Reference Fig.13 As shown, the bottom of the handle groove 311 of the handle body 310 may also be provided with a raised annular sealing wall 3112, the annular sealing wall 3112 is arranged around the outer periphery of the annular guide wall 3111, and the annular sealing wall 3112 and the annular guide wall 3111 together form a supply channel sealing groove 3113. Fig.14 As shown, the inner surface of the handle cover 320 (the surface of the handle cover 320 facing the handle body 310) may be provided with a raised supply channel sealing portion 321, the supply channel sealing portion 321 corresponds to the supply channel sealing groove 3113, and the supply channel sealing portion 321 may also be annular. The supply channel sealing portion 321 on the handle cover 320 extends into the supply channel sealing groove 3113 of the handle body 310, and the supply channel sealing portion 321 is sealed and connected to the groove bottom of the supply channel sealing groove 3113 to seal the fluid supply channel 304 (see Figure 5 ). This ensures the sealing performance of the fluid supply channel 304 and avoids fluid leakage.

[0155] On this basis, continue to refer to Fig.13 The bottom of the handle groove 311 of the handle body 310 may also be provided with a raised sealing retaining wall 3114, the sealing retaining wall 3114 may be close to the edge of the handle body 310, and the sealing retaining wall 3114 and the side wall of the handle groove 311 enclose a supply cavity sealing groove 3115. Fig.14 The inner surface of the handle cover 320 may also be provided with a raised supply cavity sealing portion 322, and the supply cavity sealing portion 322 corresponds to the supply cavity sealing groove 3115. The supply cavity sealing portion 322 on the handle cover 320 extends into the supply cavity sealing groove 3115 of the handle body 310, and the supply cavity sealing portion 322 is sealedly connected to the groove bottom of the supply cavity sealing groove 3115 to seal the fluid supply cavity 303 as a whole (see Figure 5 as shown).

[0156] Thus, the supply cavity sealing portion 322 and the supply channel sealing portion 321 on the handle cover 320 double seal the fluid supply cavity 303, which can further enhance the sealing reliability of the fluid supply cavity 303, improve the sealing performance of the handle body 310, and prevent fluid leakage from the handle body 310.

[0157] In addition, the cleaning device provided in this embodiment may also be provided with a fluid pump. The fluid pump may be provided in the cleaning head, or the fluid pump may also be provided in the body. The fluid pump is used to drive the fluid to flow in the axial flow equalization cavity 112 of the roller brush body 100, and to increase the pressure and flow of the fluid in the axial flow equalization cavity 112 under low flow or low pressure conditions.

[0158] In this way, the uniformity of the flow rate of the fluid entering each axial flow-averaging cavity 112 from the fluid distribution member 130 can be improved. In addition, the uniformity of the flow rate in each area of ​​the axial flow-averaging cavity 112 can also be improved. Thus, the uniformity of the fluid sprayed from the entire roller 110 is enhanced, the wetting uniformity of the wiping member 200 is improved, and the cleaning effect of the roller brush assembly on the surface to be cleaned is improved.

[0159] Exemplarily, the fluid pump may include an air pump and a liquid pump. When the fluid in the roller brush assembly is a cleaning liquid, the fluid is driven to flow by the liquid pump. When the fluid in the roller brush assembly is a cleaning steam, the fluid is driven to flow by the air pump. For example, the air pump, the liquid pump and the flow path of the fluid may be connected by a three-way pipe, and the air pump and the liquid pump are two input ends respectively, and the other end is an output end.

[0160] Of course, a fluid pump that can drive both liquid and gas can also be selected, so that the cleaning liquid and the cleaning steam can be driven simultaneously by one fluid pump.

[0161] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0162] It should be noted that the embodiments represented by "one embodiment", "an embodiment", "an exemplary embodiment", "some embodiments", etc. mentioned in the specification may include specific features, structures or characteristics, but not every embodiment may include the specific features, structures or characteristics. In addition, such phrases do not necessarily refer to the same embodiment. In addition, when describing specific features, structures or characteristics in conjunction with an embodiment, it is within the knowledge of those skilled in the art to implement such features, structures or characteristics in conjunction with other embodiments that are explicitly or not explicitly described.

[0163] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A roller brush assembly, characterized in that: include: The roller brush body comprises a roller, wherein at least one axial flow-distributing cavity is arranged in the wall of the roller, and the axial flow-distributing cavity extends along the axial direction of the roller; The inner wall surface of the drum is provided with a water inlet hole, and the outer wall surface of the drum is provided with a plurality of water outlet holes, each of the water outlet holes is distributed at a different axial position of the drum, and the water inlet hole and each of the water outlet holes are connected to the axial flow equalization cavity; Wherein, the drum includes a cylinder body and at least one water cavity cover, the cylinder body has at least one water cavity groove, the water cavity cover and the water cavity groove together form the axial flow equalization cavity; and the groove bottom of the water cavity groove has a raised diversion channel wall, the diversion channel wall and the water cavity cover together form a fluid diversion channel, the fluid diversion channel extends to the axial ends of the axial flow equalization cavity, and each of the water outlet holes is connected to the fluid diversion channel.

2. The roller brush assembly according to claim 1, characterized in that: There are multiple axial flow balancing cavities, and each of the axial flow balancing cavities is evenly spaced along the circumference of the drum.

3. The roller brush assembly according to claim 1, characterized in that: The number of the axial flow equalizing cavities is three.

4. The roller brush assembly according to any one of claims 1 to 3, characterized in that: The roller comprises a main cylinder portion of equal diameter for contacting the surface to be cleaned, and the axial flow-averaging cavity completely covers the main cylinder portion of equal diameter.

5. The roller brush assembly according to any one of claims 1 to 3, characterized in that: One of the outer periphery of the diversion channel wall and the inner surface of the water chamber cover has a diversion channel sealing groove, and the other has a raised diversion channel sealing portion, which extends into the diversion channel sealing groove and is sealed and connected to the bottom of the diversion channel sealing groove.

6. The roller brush assembly according to claim 5, characterized in that: The diverter channel sealing portion is an elastic portion, and the diverter channel sealing portion is in close contact with the groove bottom of the diverter channel sealing groove.

7. The roller brush assembly according to any one of claims 1 to 3, characterized in that: The fluid flow distribution channel includes a main channel and at least two branch channels, the head end of the main channel is close to one axial end of the axial flow equalization chamber, the end of the main channel extends to the other axial end of the axial flow equalization chamber, the head end of each branch channel is connected to the main channel, and the end of each branch channel is distributed at different axial positions of the axial flow equalization chamber; Wherein, the water inlet is arranged at the head end of the main channel, and each water outlet is arranged at the end of each branch channel.

8. The roller brush assembly according to claim 7, characterized in that: The end of the main channel extends to the axial middle of the axial flow equalizing cavity, and the number of the branch channels is two. The two branch channels are respectively located on both sides of the end of the main channel, and the two branch channels extend to the axial ends of the axial flow equalizing cavity respectively.

9. The roller brush assembly according to claim 8, characterized in that: From the head end of the main channel to the end of the main channel, the main channel includes a main section and a tail section arranged in sequence, the main section extends along the first side of the axial flow-averaging cavity, and the tail section extends from the first side of the axial flow-averaging cavity to the second side of the axial flow-averaging cavity; The branch channel includes a main branch segment and multiple branch segments, the head end of the main branch segment is connected to the end of the tail segment, and the main branch segment extends along the second side of the axial flow equalization cavity, the head end of each branch segment is connected to the main branch segment, and the end of each branch segment extends toward the first side of the axial flow equalization cavity.

10. The roller brush assembly according to any one of claims 1 to 3, characterized in that: The roller brush body also includes: The fluid distribution component is fixed in the drum; the fluid distribution component has at least one fluid distribution port, and the fluid distribution port is communicated with the water inlet hole.

11. The roller brush assembly according to claim 10, characterized in that: The roller brush body also includes: End covers, which are mounted on both axial ends of the drum; Wherein, the fluid distribution component is connected to the end cover.

12. The roller brush assembly according to claim 11, characterized in that: A sealing portion is provided at one end of the roller facing the fluid distribution member, and the sealing portion seals the interior of the roller; The fluid distribution component is sealedly connected to the sealing portion, and the fluid distribution component and the sealing portion together form at least one fluid distribution cavity, and the fluid distribution port and the water inlet are both in communication with the fluid distribution cavity.

13. The roller brush assembly according to claim 10, characterized in that: The fluid distribution member comprises: The dispensing component body is provided with the fluid dispensing port; The sealing member, together with the dispensing member body, forms a fluid inlet cavity; the sealing member is provided with a fluid inlet, and the fluid inlet is communicated with the fluid inlet cavity.

14. The roller brush assembly according to any one of claims 1 to 3, characterized in that: Also includes: The roller brush handle is rotatably connected to the two ends of the roller brush body.

15. The roller brush assembly according to claim 14, characterized in that: The roller brush handle has a fluid supply cavity therein, and the roller brush handle is provided with a fluid inlet portion and a fluid supply portion, and both the fluid inlet portion and the fluid supply portion are connected to the fluid supply cavity; The fluid inlet portion is used to supply fluid to enter the fluid supply cavity, and the fluid supply portion is communicated with the axial flow equalization cavity.

16. The roller brush assembly according to claim 15, characterized in that: The roller brush handle comprises a handle body and a handle cover. A side wall of the handle body is provided with a handle groove. The handle cover seals the handle groove and together with the handle groove forms the fluid supply cavity.

17. The roller brush assembly according to claim 16, characterized in that: The bottom of the handle groove has a raised annular guide wall, and the handle cover and the annular guide wall together form a fluid supply channel; Wherein, the fluid inlet portion is arranged at one end of the fluid supply channel, and the fluid supply portion is arranged at the other end of the fluid supply channel.

18. The roller brush assembly according to claim 17, characterized in that: The bottom of the handle groove also has a raised annular sealing wall, which is arranged around the outer periphery of the annular guide wall, and the annular sealing wall and the annular guide wall together form a supply channel sealing groove; The inner surface of the handle cover is provided with a raised supply channel sealing portion, which extends into the supply channel sealing groove and is sealed and connected to the groove bottom of the supply channel sealing groove.

19. The roller brush assembly according to claim 16, characterized in that: The bottom of the handle groove also has a raised sealing retaining wall, the sealing retaining wall is close to the edge of the handle body, and the sealing retaining wall and the side wall of the handle groove together form a supply cavity sealing groove; The inner surface of the handle cover also has a raised supply cavity sealing portion, which extends into the supply cavity sealing groove and is sealed and connected to the groove bottom of the handle groove.

20. A cleaning head, characterized in that: It comprises a floor brush shell and a roller brush assembly as described in any one of claims 1 to 19, wherein the roller brush assembly is mounted on the floor brush shell.

21. A cleaning device, characterized in that: It comprises a body and the cleaning head as claimed in claim 20, wherein the body or the cleaning head is provided with a fluid pump, and the fluid pump is used to drive the fluid to flow in the axial flow equalization cavity of the roller brush body.

22. The cleaning device according to claim 21, characterized in that The fluid pump includes an air pump and a liquid pump.

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