A cleaning system for a suction cleaner and a suction cleaner

Abstract

The present disclosure provides a cleaning system for a suction cleaner, comprising a first part and a second part connected detachably, the first part is provided with a first air path, the second part is provided with a supply water path and a second air path, the supply water path is provided with a control valve for opening and closing the supply water path; the liquid outlet part of the supply water path is provided with a fluid connector, the first part is further provided with a first fluid receiver and a second fluid receiver or without the first fluid receiver, the second part is correspondingly provided with a cleaning flow channel for receiving the cleaning fluid guided by the second fluid receiver, the cleaning flow channel is communicated with the second air path, through the detachable connection of the first part and the second part, the fluid connector is selectively connected with the second fluid receiver, so as to have two states; the system does not need to additionally set a rod cap, and is convenient for cleaning the working part and the recovery path of the suction cleaner after the working part; a suction cleaner adopting the system is also disclosed.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cleaning equipment, in particular to a cleaning system for a suction cleaner and a suction cleaner. BACKGROUND

[0002] The suction cleaner referred to in the present disclosure is a kind of surface cleaning equipment, for example, the surface cleaning equipment disclosed in CN214906478U, which comprises a base, a suction source, a clean water tank and a sewage tank, the suction source, the clean water tank and the sewage tank are all installed on the base to constitute a main machine, and further comprises an accessory (the common accessory is a brush head), the accessory is connected to the main machine through a flow channel, the flow channel is mainly a hose, the hose has good freedom, thereby facilitating the user to operate the accessory to clean the cleaned surface, the accessory can spray the cleaning liquid of the clean water tank, further, the accessory is provided with a switch, the switch is operated by the user to control the spraying time of the cleaning liquid, when cleaning the cleaned surface, the user can spray the cleaning liquid in a directional manner by operating the switch, after the cleaning liquid soaks the stain for a while, the user operates the accessory to scrape the stain, and at the same time, the suction source sucks to suck the mixture of the cleaning liquid and the stain into the sewage tank, and after separation by a separator, the filtered clean air is discharged to the environment.

[0003] The suction cleaner or deep cleaner can also be described as follows: it comprises a fluid delivery system for delivering cleaning fluid to a surface to be cleaned and a fluid recovery system for extracting used cleaning fluid and debris (which can include dirt, dust, stains, mud, hair and other debris) from the surface. The fluid delivery system usually comprises one or more fluid supply tanks for storing a quantity of cleaning fluid, a fluid distributor for applying the cleaning fluid to the surface to be cleaned, and a fluid supply conduit for delivering the cleaning fluid from the fluid supply tank to the fluid distributor. An agitator can be provided for agitating the cleaning fluid on the surface. The fluid recovery system usually comprises a recovery tank, a nozzle adjacent to the surface to be cleaned and in fluid communication with the recovery tank through a working air conduit, and a suction source in fluid communication with the working air conduit to suck the cleaning fluid from the surface to be cleaned through the nozzle and the working air conduit to the recovery tank. Some household suction cleaners use accessories (such as hoses, rods and other cleaning tools) to perform cleaning operations. The hoses, rods and other cleaning tools can be configured for fluid delivery and fluid recovery.

[0004] From the above, the fluid recovery system will mainly contact dirt and store dirt, so the fluid recovery system is relatively dirty, and the main cleaning part that needs to be cleaned is the suction cleaner recovery path, such as a hose, and a better structure is to enable self-cleaning. In the prior art, in order to achieve the foregoing function, there is a scheme, such as the system for cleaning the suction cleaner recovery path and the accessory of the suction cleaner disclosed in CN209750919U, which proposes a very convenient scheme. Specifically, the system for cleaning the suction cleaner recovery path comprises: a rod comprising: a fluid delivery path adapted to be in fluid communication with the supply container and having a fluid connector; and an airflow path adapted to be in fluid communication with the recovery container, and the airflow path has an airflow connector; and a rod cap adapted to partially receive the rod and comprising: a fluid connector receiver cooperating with the fluid connector of the rod; an airflow connector receiver cooperating with the airflow connector of the rod; and a closed path between the fluid connector receiver and the airflow connector receiver. This scheme excludes the working part, separately provides a rod, and configures a rod cap for the rod, and the cooperation structure of the rod cap and the rod forms a closed path, that is, the cleaning liquid supplied by the fluid connector of the rod is sucked back to the suction cleaner recovery path through the closed path by the airflow connector of the rod, so as to achieve cleaning. The structure is very simple and convenient to use. However, it has certain requirements. As described above, the working part needs to be removed, and the rod cap needs to be connected. In addition, the air inlet during cleaning is mainly solved by providing an air hole in the rod cap, and the closed path is required (such an advantage is that the cleaning liquid is not easy to leak out during cleaning), so that the possibility of blockage during suction is brought. SUMMARY

[0005] The technical problem to be solved by the present application is to overcome the defects of the prior art and provide a cleaning system for a suction cleaner, which does not need to additionally provide a rod cap, and is convenient for cleaning the working part and the suction cleaner recovery path after the working part.

[0006] Compared with the prior art, the present application provides a cleaning system for a suction cleaner, which comprises a first part and a second part connected in a detachable manner, the first part has a working part, the second part has a suction cleaner recovery path, the first part is provided with a first air path for working use of the working part, the second part is provided with a supply water path and a second air path, and the supply water path is provided with a control valve for opening and closing the supply water path.

[0007] The liquid outlet part of the water supply path is provided with a fluid connector, the first part is further provided with a first fluid receiver and a second fluid receiver, the first fluid receiver is provided with a working liquid injection part, and the second part is correspondingly provided with a cleaning flow channel for receiving the cleaning fluid guided by the second fluid receiver. The cleaning flow channel is in communication with the second gas path. Through the detachable connection of the first part and the second part, the fluid connector can be selectively connected with one of the first fluid receiver and the second fluid receiver, so as to have two states: the state of the fluid connector connected with the first fluid receiver is the working state of the suction cleaner, and in the working state, the fluid connector, the first fluid receiver and the working liquid injection part are sequentially communicated; the state of the fluid connector connected with the second fluid receiver is the cleaning state of the suction cleaner, and in the cleaning state, the fluid connector, the second fluid receiver, the cleaning flow channel and the second gas path are sequentially communicated; or there is no first fluid receiver, but the fluid connector is directly provided with a working liquid injection part. Through the detachable connection of the first part and the second part, the fluid connector can be selectively connected with the second fluid receiver. When the fluid connector is not connected with the second fluid receiver, the working liquid injection part of the fluid connector is in a state of being capable of delivering cleaning liquid to the environment to be cleaned, i.e. in the working state of the suction cleaner.

[0008] In some embodiments, the fluid connector is arranged along the circumference of the second part. Correspondingly, for the case of simultaneously having the first fluid receiver and the second fluid receiver, the first fluid receiver and the second fluid receiver are arranged in a staggered manner along the circumference of the first part, and the fluid connector can be selectively axially connected with one of the first fluid receiver and the second fluid receiver. For the case of only having the second fluid receiver, the second fluid receiver is arranged along the circumference of the first part, and the fluid connector can be selectively axially connected and disconnected with the second fluid receiver.

[0009] In some embodiments, an air inlet hole is further included, which is in communication with the second gas path in the cleaning state.

[0010] In some embodiments, in the working state, the air inlet hole is disconnected from the second gas path.

[0011] In some embodiments, the second fluid receiver is provided with an air inlet hole.

[0012] In some embodiments, a flow guide chamber is further included, the air inlet hole and the second fluid receiver are respectively in communication with the flow guide chamber, and in the cleaning state, the airflow entering the air inlet hole accelerates the delivery of the cleaning liquid in the second fluid receiver to the second gas path.

[0013] In some embodiments, in the cleaning state, the first gas path is disconnected from the second gas path, and the airflow only enters from the air inlet hole.

[0014] In some embodiments, the first air passage is arranged to extend from a front portion of the first portion to a rear portion of the first portion, the front portion of the first portion has a first opening of the first air passage, the rear portion of the first portion has a second opening of the first air passage, the rear portion of the first portion has a first end face, the front portion of the second portion has a second end face, the first end face has the second opening, the second end face has an inlet of the second air passage, in the working state, the first end face and the second end face are sealingly butted, and the first air passage is connected to the second air passage through the second opening, dirt is sucked in from the first opening and delivered to the second air passage from the second opening, in the cleaning state, at least the inlet of the second air passage is closed by the first end face, and the second air passage is only air-intaked through the air inlet hole.

[0015] In some embodiments, the first end face has a first partition area and the second opening as a communication area, the second end face has a second partition area and the inlet of the second air passage as a communication area, in the working state, the first partition area and the second partition area are located on the same side, and the second opening and the inlet of the second air passage are located on the same side, in the cleaning state, the first partition area and the inlet of the second air passage are located on the same side to close the inlet of the second air passage, and the second opening and the second partition area are located on the same side to close the second opening.

[0016] In some embodiments, in the working state, the fluid connector and the second fluid receiver are arranged to be spaced 180 degrees circumferentially along the first portion and / or the second portion, when switching to the cleaning state, the first portion and the second portion are relatively moved 180 degrees to make the fluid connector and the second fluid receiver relatively move 180 degrees before being connected, at the same time, the first partition area is corresponded to the inlet of the second air passage to close the inlet, and the second partition area is corresponded to the second opening to close the second opening.

[0017] In some embodiments, the first air passage is arranged to extend from a front portion of the first portion to a rear portion of the first portion, the front portion of the first portion has a first opening of the first air passage, the rear portion of the first portion has a second opening of the first air passage, in the working state, the second opening is connected to the second air passage, dirt is sucked in from the first opening and delivered to the second air passage from the second opening, in the case that the first portion and the second portion are disassembled, the second opening is separated from the second air passage, and the second opening is exposed to enable the cleaning liquid to be poured into the first air passage for cleaning.

[0018] In some embodiments, the rear portion of the first portion has a connecting sleeve for connecting with the second portion, and the second opening is located in the connecting sleeve, in the second state, the connecting sleeve can be used to pour the cleaning liquid to clean the first air passage.

[0019] In some embodiments, the front part of the first part has a working component, the rear part of the first part is detachably inserted into the front part of the second part, for the case of having both the first fluid receiver and the second fluid receiver, the detachable insertion makes the fluid connector selectively inserted into one of the first fluid receiver and the second fluid receiver, for the case of having only the second fluid receiver, the detachable insertion makes the fluid connector selectively inserted into and detached from the second fluid receiver.

[0020] In some embodiments, the rear part of the first part is provided with an insertion sleeve in communication with the first gas path, the outer side wall of the first part is provided with the second fluid receiver, the second fluid receiver is in communication with the interior of the insertion sleeve through the first communication hole, the front part of the second part is provided with an insertion pipe, the insertion pipe is provided with a cleaning flow channel and an extension part of the second gas path, the insertion sleeve is detachably inserted into the insertion pipe, in the working state, the outer side wall of the insertion pipe separates the first communication hole from the interior of the insertion sleeve, in the cleaning state, the second fluid receiver, the first communication hole, the cleaning flow channel and the extension part of the second gas path are sequentially communicated.

[0021] In some embodiments, for the case of having a flow guide chamber, the cleaning flow channel simultaneously serves as the flow guide chamber.

[0022] In some embodiments, in the working state, the inner side wall of the insertion sleeve covers the entrance of the cleaning flow channel.

[0023] In some embodiments, in the working state, the cleaning flow channel and the second fluid receiver are arranged at a circumferential interval of 180 degrees along the first part and / or the second part, when switching to the cleaning state, the first part and the second part are relatively moved by 180 degrees to make the cleaning flow channel and the second fluid receiver relatively move by 180 degrees and then connected, at this time, the entrance of the cleaning flow channel is in butt joint communication with the first communication hole.

[0024] In some embodiments, in the cleaning state, the second gas path is still in communication with the first gas path, the second gas path simultaneously sucks air in the environment through the first gas path while receiving the cleaning fluid guided by the second fluid receiver, or for the case of having an air inlet hole, the second gas path simultaneously takes in air through the air inlet hole and the first gas path.

[0025] After adopting the above structure, compared with the prior art, the present application has the following advantages:

[0026] The present disclosure includes a first part and a second part which are detachably connected, the first part has a working component, the second part has a suction cleaner recycling path, the first part is provided with a first air path for working component working use, the second part is provided with a water supply path and a second air path, the water supply path is provided with a control valve for opening and closing the water supply path, the liquid outlet part of the water supply path is provided with a fluid connector, the first part is provided with a second fluid receiver, through the detachable connection of the first part and the second part, the fluid connector is selectively connected and disconnected with the second fluid receiver, in the disconnected state, the working liquid injection part is in a state of delivering cleaning liquid to the environment to be cleaned, thus realizing the working state and the cleaning state, and there is no need to additionally set a rod cap, in addition, since the scheme of the present disclosure is not the structure of the rod cap cooperating with the rod in the prior art, there is no need to form a closed path by the cooperation of the rod cap and the rod, but through the detachable connection of the first part and the second part to make the fluid connector selectively connected and disconnected with the second fluid receiver, so that the two states are obtained, so that the air inlet is more convenient in the cleaning state, for example, in the cleaning state, the second air path is still communicated with the first air path, and the second air path is still sucking the air in the environment through the first air path while receiving the cleaning fluid guided by the second fluid receiver, the advantage of this design is that the air inlet amount is large, which is beneficial to prevent clogging, of course, other structures can also be used, for example, an air inlet hole is arranged, the second air path sucks air through the air inlet hole, the second air path does not suck air through the first air path, or the second air path sucks air through the air inlet hole and the first air path at the same time.

[0027] Since the first part and the second part are detachably connected, the first air path and the second air path can be cleaned separately, and the scheme of the present disclosure can refer to the following cleaning method: after the first part and the second part are separated, the first air path of the first part can be flushed with cleaning liquid (such as tap water), then the first part and the second part are connected and the fluid connector is connected with the second fluid receiver, the second air path is flushed by the cleaning liquid supplied by the water supply path guided by the second fluid receiver, and the suction source is turned on at the same time to suck the dirt generated during cleaning into the recycling box, so that the separate cleaning is completed.

[0028] In summary, the present disclosure does not need to additionally set a rod cap, and at the same time, it is convenient to clean the working component and the suction cleaner recycling path after the working component. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 It is a schematic diagram of the working state of a cleaning system for a suction cleaner.

[0030] Figure 2 It is a schematic diagram of the cleaning state of a cleaning system for a suction cleaner.

[0031] Figure 3 It is a front view of a first part.

[0032] Figure 4 is a left view of a first part.

[0033] Figure 5 is a cross-sectional view along A-A.

[0034] Figure 6 is a front view of a second part.

[0035] Figure 7 is a right view of a second part.

[0036] Figure 8 is a cross-sectional view along B-B.

[0037] Figure 9 is a cross-sectional view of a cleaning system for a suction cleaner in an operating condition with a first fluid receiver.

[0038] Figure 10 is a cross-sectional view of a cleaning system for a suction cleaner in an operating condition without a first fluid receiver.

[0039] Figure 11 is a cross-sectional view of a cleaning system for a suction cleaner in a cleaning condition with a first fluid receiver.

[0040] Figure 12 is a perspective view of a first part.

[0041] Figure 13 is a perspective view of a second part.

[0042] Figure 14 is a perspective view of a suction cleaner.

[0043] BRIEF DESCRIPTION OF DRAWINGS, 1 - first part, 1.1 - working end, 1.2 - first opening, 1.3 - second opening, 1.4 - connecting sleeve, 1.5 - first end face, 1.6 - first air path, 2 - working liquid spray, 3 - second part, 4 - second air path, 5 - fluid connector, 6 - first fluid receiver, 7 - second fluid receiver, 8 - non-through part, 9 - flow channel part, 10 - air inlet, 11 - air inlet hole, 12 - cross-over overlapping flow channel, 13 - second end face, 14 - first communication hole, 15 - plug-in pipe, 16 - cleaning flow channel, 17 - control key, 18 - control valve, 19 - connecting port, 20 - flow guide chamber, 21 - hose, 22 - main machine, 23 - air flow inlet, 24 - water supply path. DETAILED DESCRIPTION

[0044] The following description is presented to enable any person skilled in the art to practice the application as claimed. The description is presented in terms of one or more embodiments. One skilled in the art will recognize that other embodiments can be practiced with equivalent or different modifications without departing from the spirit and scope of the application.

[0045] Those skilled in the art will appreciate that the terms "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like as used herein refer to the orientation or position of the illustrated figures based on the orientation or position shown in the figures, which are presented merely for convenience and simplicity of description and are not intended to limit or imply that the described device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the application.

[0046] It should be noted that the description or name of "water" is not limited to pure water, but refers to a large range defined by "cleaning liquid", which can be pure water, a water mixture, a non-water "cleaning liquid", etc. Any "cleaning liquid" suitable for the technical solutions disclosed herein is applicable.

[0047] As shown in Figures 1 to 14 A cleaning system for a suction cleaner and a suction cleaner are provided, in particular, a cleaning system for a suction cleaner, comprising a first part 1 and a second part 3 connected detachably, the first part 1 having working components, the second part 3 having a suction cleaner recovery path, the first part 1 being provided with a first air path 1.6 for use of the working components, the second part 3 being provided with a water supply path 24 and a second air path 4, the water supply path 24 being provided with a control valve 18 for opening and closing the water supply path 24, and the control valve 18 being controlled by a control key 17, so as to facilitate the user to operate the control valve 18. A suction cleaner comprises a fluid delivery system for delivering cleaning liquid to a surface to be cleaned and a fluid recovery system for extracting dirt from the surface, the fluid recovery system having the cleaning system.

[0048] It should be noted that the suction cleaner recovery path can refer to the second air path 4 as shown in Figure 8 、 11 The second air path 4 can also be a flow path formed by further connecting the second air path 4 to the hose 21 through the connecting port 19 as shown in Figure 14 In addition, due to the characteristics of the cleaning liquid flowing through the cleaning, the suction cleaner recovery path can further include a recovery tank. In summary, the suction cleaner recovery path is not only the second air path 4 as shown in Figure 8 、 11In the case shown, this also means that the length of the second part 3 is not limited to the length shown in Figure 8 , 11 , and thus, in relation to Figure 14 , in Figure 8 , 11 , the second part 3 mainly exhibits a head of the second part 3 for detachable connection with the first part 1, which is exemplified in the drawings as a rod-shaped portion, which is shown as a cylindrical rod with a circular cross section, but can also be of another cross-sectional shape. Figure 6

[0049] In some embodiments, as shown in Figure 3 , 4 , 5, the working part, i.e. the first part 1, is integrated, and the working end 1.1 of the working part is located at the front end of the first part 1. The working end 1.1 is generally provided with bristles, although the bristles are not shown in the drawings of the present disclosure. Of course, the first part 1 can also be of another structure, for example, the working part can be connected with an extension tube to form the first part 1, so that the working end 1.1 is located at a more forward position, thereby facilitating the user to reach a farther place for use. However, regardless of which of the above cases, the present disclosure has the following advantages, specifically, even if the first part 1 is relatively long along the length of the first air path 1.6 (resulting in a relatively long first air path 1.6), or even if the first part 1 is relatively long as a whole (resulting in a relatively long first air path 1.6), the present disclosure is still convenient to clean due to the detachable flushing design feature.

[0050] As shown in Figure 3 , 5 , 6, 8, 9, 11, the liquid outlet portion of the water supply path 24 is provided with a fluid connector 5, the first part 1 is further provided with a first fluid receiver 6 and a second fluid receiver 7, the first fluid receiver 6 is provided with a working liquid spraying portion 2, and the second part 3 is correspondingly provided with a cleaning flow channel 16 for receiving the cleaning fluid guided from the second fluid receiver 7, the cleaning flow channel 16 is in communication with the second air path 4. Through the detachable connection of the first part 1 and the second part 3, the fluid connector 5 can be selectively connected with one of the first fluid receiver 6 and the second fluid receiver 7, and thus has two states: a working state of the suction cleaner in which the fluid connector 5, the first fluid receiver 6, and the working liquid spraying portion 2 are sequentially connected; and a cleaning state of the suction cleaner in which the fluid connector 5, the second fluid receiver 7, the cleaning flow channel 16, and the second air path 4 are sequentially connected; or, as shown in Figure 10 ​As shown, there is no first fluid receiver 6, and the fluid connector 5 is directly provided with the working liquid injection part 2. Through detachable connection of the first part 1 and the second part 3, the fluid connector 5 can be selectively connected with the second fluid receiver 7. When the fluid connector 5 is not connected with the second fluid receiver 7, the working liquid injection part 2 of the fluid connector 5 is in a state of delivering cleaning liquid to the environment to be cleaned, that is, in a working state of the suction cleaner.

[0051] Figure 9 10 The arrow shown in the figure indicates that the cleaning liquid is delivered to the environment to be cleaned in the working state. Figure 11 The arrow shown in the figure indicates that the cleaning liquid is delivered to the second air path 4 for cleaning in the cleaning state.

[0052] In some embodiments, in the cleaning state, the second air path 4 is still in communication with the first air path 1.6, and the second air path 4 is simultaneously receiving the cleaning fluid guided from the second fluid receiver 7 and sucking the air in the environment through the first air path 1.6, for example as shown in Figure 1 2 As shown, some space of the second part 3 will be occupied by the control valve 18 and other structures arranged in the second part 3, that is, all the space of the second part 3 cannot be used as the second air path 4, and some space of the first part 1 will be occupied by the working components arranged in the first part 1, that is, all the space of the first part 1 cannot be used as the first air path 1.6. Therefore, the second part 3 and the first part 1 each have a non-passing part 8 and a flow passage part 9, that is, the air flow passage formed by the communication of the first air path 1.6 and the second air path 4. For the convenience of understanding, it is assumed that the non-passing part 8 and the flow passage part 9 each occupy half, and then we can achieve the purpose through the cross-over flow passage 12, that is, in the working state, the fluid connector 5 and the second fluid receiver 7 are arranged to be circumferentially staggered, for example as shown in Figure 1 The fluid connector 5 and the second fluid receiver 7 are circumferentially staggered by, for example, 45 degrees. At this time, the first air path 1.6 and the second air path 4 are in a completely communicating state. When it is required to switch to the cleaning state, through detachable connection of the first part 1 and the second part 3, the fluid connector 5 can be selectively connected with the second fluid receiver 7 to form, for example as shown in Figure 2 Due to the change of the relative position of the first part 1 and the second part 3, the non-passing part 8 and the flow passage part 9 partially overlap, resulting in that the first air path 1.6 and the second air path 4 are switched from the completely communicating state to the partially communicating state, that is, the cross-over flow passage 12 is generated. However, the second air path 4 can still suck the air in the environment through the first air path 1.6 when cleaning.

[0053] In some embodiments, for example as shown in Figure 5 8 ​​​The second fluid receiver 7 is provided with an air inlet hole 11, which is communicated with the second air passage 4 in the cleaning state. This is conducive to air intake.

[0054] In some embodiments, as shown in Figure 5 , 8 The second fluid receiver 7 is provided with an air inlet part 10, which is located outside the second fluid receiver 7 and shares the first communication hole 14 provided on the connecting sleeve 1.4 with the second fluid receiver 7. In this way, two communication holes do not need to be separately provided on the connecting sleeve 1.4, and the structure is relatively simple and compact.

[0055] In some embodiments, as shown in Figure 9 In the working state, the air inlet hole 11 is disconnected from the second air passage 4. This design is conducive to avoiding air leakage, so that the suction energy is mainly used for suction work of the first opening 1.2.

[0056] In some embodiments, as shown in Figure 5 , 8 The second fluid receiver 7 is further provided with a flow guide chamber 20, and the air inlet hole 11 and the second fluid receiver 7 are respectively communicated with the flow guide chamber 20. In the cleaning state, the airflow entering the air inlet hole 11 guides the second fluid receiver 7 to accelerate the delivery of the cleaning liquid in the flow guide chamber 20 to the second air passage 4. In this way, the cleaning liquid entering the second air passage 4 is sprayed into the second air passage 4, so as to facilitate the flushing of the second air passage 4. The provision of the flow guide chamber 20 plays an important role in improving the cleaning capacity and cleaning efficiency.

[0057] In some embodiments, as shown in Figure 5 , 8 In the cleaning state, the first air passage 1.6 is disconnected from the second air passage 4, and the airflow only enters from the air inlet hole 11. In this way, the airflow drawn from the environment mainly enters from the air inlet hole 11, so that the suction energy is mainly used for accelerating the delivery of the cleaning liquid guided by the second fluid receiver 7 into the flow guide chamber 20 to the second air passage 4.

[0058] In some embodiments, as shown in Figure 5 , 8, 9, 11, 12, 13, the first air path 1.6 is arranged from the front of the first part 1 to the rear of the first part 1, the front of the first part 1 has the first opening 1.2 of the first air path 1.6, the rear of the first part 1 has the second opening 1.3 of the first air path 1.6, the rear of the first part 1 has the first end face 1.5, the front of the second part 3 has the second end face 13, the first end face 1.5 has the second opening 1.3, and the second end face 13 has the inlet of the second air path 4, that is, the air flow inlet 23, in the working state, the first end face 1.5 is sealed and connected with the second end face 13, for example, using a sealing ring, and the first air path 1.6 is connected with the second air path 4 through the second opening 1.3, the dirt is sucked from the first opening 1.2 and delivered to the second air path 4 from the second opening 1.3, in the cleaning state, at least the inlet of the second air path 4 is closed by the first end face 1.5, and the second air path 4 only takes in air through the air inlet hole 11. After such design, it is beneficial to realize the connection and closure of the first air path 1.6 and the second air path 4 when switching between the two states, and no special attention is required from the user, in addition, the structure is relatively simple, and in addition, since the inlet of the second air path 4 is closed by the first end face 1.5 in the cleaning state, the cleaning liquid will not leak from the inlet of the second air path 4 when the second air path 4 is washed with cleaning liquid.

[0059] In some embodiments, as Figure 9 、 11 , 12, 13, the first end face 1.5 has a first partition area and the second opening 1.3 as a communication area, and the second end face 13 has a second partition area and the inlet of the second air path 4 as a communication area, in the working state, the first partition area and the second partition area are located on the same side, and the second opening 1.3 and the inlet of the second air path 4 are located on the same side, in the cleaning state, the first partition area and the inlet of the second air path 4 are located on the same side to close the inlet of the second air path 4 by the first partition area, and the second opening 1.3 and the second partition area are located on the same side to close the second opening 1.3 by the second partition area. After such design, the closure structure is simple and reliable.

[0060] In some embodiments, as Figure 9 、 11, 12, 13, in the working state, the fluid connector 5 and the second fluid receiver 7 are arranged along the first part 1 and / or the second part 3 at an interval of 180 degrees, when switching to the cleaning state, the first part 1 and the second part 3 are relatively moved by 180 degrees to make the fluid connector 5 and the second fluid receiver 7 relatively move by 180 degrees before being connected, and at the same time, the first partition area corresponds to the inlet of the second air path 4 to close the inlet, and the second partition area corresponds to the second opening 1.3 to close the second opening 1.3. After such design, it is convenient for the user to know which state it belongs to. In addition, in order to ensure the insertion direction, a guide structure can be further provided, so that the user can connect accurately without special attention.

[0061] In some embodiments, as shown in Figure 5 、 12 , the first air path 1.6 is arranged from the front of the first part 1 to the rear of the first part 1, the front of the first part 1 has the first opening 1.2 of the first air path 1.6, and the rear of the first part 1 has the second opening 1.3 of the first air path 1.6, in the working state, the second opening 1.3 is connected in communication with the second air path 4, the dirt is sucked from the first opening 1.2 and delivered to the second air path 4 from the second opening 1.3, in the case that the first part 1 and the second part 3 are disassembled, the second opening 1.3 is separated from the second air path 4, and the second opening 1.3 is exposed to the outside so that the cleaning liquid can be poured into the first air path 1.6 for cleaning. After such design, it is convenient to pour the cleaning liquid from the second opening 1.3 to clean the first air path 1.6, which is beneficial to the user's convenience.

[0062] In some embodiments, as shown in Figure 5 、 12 , the rear of the first part 1 has a connecting sleeve 1.4 for connecting with the second part 3, and the second opening 1.3 is located in the connecting sleeve 1.4, in the second state, the connecting sleeve 1.4 can be used to pour cleaning liquid to clean the first air path 1.6. After such design, on the one hand, the connecting sleeve 1.4 can be used to facilitate the user to disassemble and assemble the first part 1 and the second part 3, improving the convenience of use, on the other hand, the user does not need to pay special attention to align the second opening 1.3, but only needs to align the connecting sleeve 1.4 with the faucet to flush with water, which is very convenient.

[0063] In some embodiments, a separation prevention structure can be further provided between the first part 1 and the second part 3 to ensure the separation prevention performance of the first part 1 and the second part 3 after being connected. The separation prevention structure is, for example, a clamping structure, a plug-in structure, etc.

[0064] In some embodiments, as shown in Figure 3 、 6As shown in Figures 11, 12, and 13, the front of the first part 1 has a working component, and the rear of the first part 1 is detachably connected to the front of the second part 3. When both a first fluid receiver 6 and a second fluid receiver 7 are present, this detachable connection allows the fluid connector 5 to selectively connect to either the first fluid receiver 6 or the second fluid receiver 7. When only the second fluid receiver 7 is present, this detachable connection allows the fluid connector 5 to selectively connect to and disconnect from the second fluid receiver 7. This design, on the one hand, facilitates user operation to achieve different states through the connection; on the other hand, by knowing whether the fluid connector 5 is connected to the second fluid receiver 7, the user can easily understand the current state.

[0065] In some embodiments, such as Figure 3 , 6 As shown in Figures 11, 12, and 13, the rear of the first part 1 is provided with a plug sleeve that communicates with the first air passage 1.6. In this example, the connecting sleeve 1.4 and the plug sleeve can be regarded as the same part. The rear of the plug sleeve is provided with a connection port 19. The outer wall of the first part 1 is provided with a second fluid receiver 7. The second fluid receiver 7 communicates with the inside of the plug sleeve through the first connecting hole 14. The front of the second part 3 is provided with a plug tube 15. The plug tube 15 is provided with a cleaning flow channel 16 and an extension of the second air passage 4. The plug sleeve and the plug tube 15 are detachably plugged in. In the working state, the outer wall of the plug tube 15 separates the first connecting hole 14 from the inside of the plug sleeve. In the cleaning state, the second fluid receiver 7, the first connecting hole 14, the cleaning flow channel 16, and the extension of the second air passage 4 are connected in sequence.

[0066] In some embodiments, such as Figure 6 , 8 As shown in Figure 11, in the case of having a flow guide chamber 20, the clean flow channel 16 also serves as the flow guide chamber 20. This design, without increasing structural complexity, is beneficial for further enhancing flow guidance.

[0067] In some embodiments, such as Figure 9 As shown, in the working state, the inner wall of the plug sleeve covers the inlet of the cleaning channel 16. This helps to prevent dirt from leaking from the cleaning channel 16.

[0068] In some embodiments, such as Figure 9 , 11 As shown, in the working state, the cleaning channel 16 and the second fluid receiver 7 are set circumferentially at a distance of 180 degrees along the first part 1 and / or the second part 3. When it is necessary to switch to the cleaning state, the first part 1 and the second part 3 move 180 degrees relative to each other so that the cleaning channel 16 and the second fluid receiver 7 move 180 degrees relative to each other before connecting. At this time, the inlet of the cleaning channel 16 is connected to the first connecting hole 14.

[0069] In some embodiments, as shown in Figure 1 , 2 , 3, 9, 10, 11, the fluid connector 5 is arranged along the circumference of the second part 3, and correspondingly, for the case of having both the first fluid receiver 6 and the second fluid receiver 7, the first fluid receiver 6 and the second fluid receiver 7 are arranged in a staggered manner along the circumference of the first part 1, and the fluid connector 5 is selectively axially connected with one of the first fluid receiver 6 and the second fluid receiver 7, and for the case of having only the second fluid receiver 7, the second fluid receiver 7 is arranged along the circumference of the first part 1, and the fluid connector 5 is selectively axially connected with and disconnected from the second fluid receiver 7. This facilitates the structural arrangement, and is also beneficial for simplifying the structure.

[0070] In some embodiments, in the cleaning state, the second air path 4 is still in communication with the first air path 1.6, and the second air path 4 simultaneously sucks air from the environment through the first air path 1.6 while receiving the cleaning fluid guided from the second fluid receiver 7, and for the case of having the air inlet hole 11, the second air path 4 simultaneously intakes air through the air inlet hole 11 and the first air path 1.6.

[0071] In some embodiments, as shown in Figure 14 , a suction cleaner includes a main machine 22, which includes a suction source, a clean water tank, a recovery tank, etc., and the suction source, the recovery tank, a hose 21, a rod-shaped part, and the first part 1 form a fluid recovery system, which has the cleaning system described above.

[0072] In understanding the present disclosure, the above-described structure can refer to other embodiments / attachments Figure 1 , and it is understood that they are not described here.

[0073] The above description is only an embodiment of the present application for illustration, and equivalent changes or modifications made to the structure, features and principles described within the scope of the present patent protection are included in the scope of the present patent protection.

Claims

1. A cleaning system for a suction cleaner, characterized in that, It includes a detachable first part and a second part. The first part has a working component, and the second part has a suction cleaner recovery path. The first part is provided with a first air passage for the working component to work, and the second part is provided with a water supply passage and a second air passage. The water supply passage is provided with a control valve to open and close the water supply passage. The water supply outlet section is equipped with a fluid connector. The first part also includes a first fluid receiver and a second fluid receiver. The first fluid receiver has a working spray section. The second part has a corresponding cleaning channel for receiving the cleaning fluid guided by the second fluid receiver. This cleaning channel is connected to the second air passage. Through the detachable connection between the first and second parts, the fluid connector can be selectively connected to either the first or second fluid receiver, thus having two states: the state where the fluid connector is connected to the first fluid receiver is the working state of the suction cleaner, in which the fluid connector, the first fluid receiver, and the working spray section are sequentially connected; the state where the fluid connector is connected to the second fluid receiver is the cleaning state of the suction cleaner, in which the fluid connector, the second fluid receiver, the cleaning channel, and the second air passage are sequentially connected; or, there is no first fluid receiver, but the fluid connector directly has a working spray section. Through the detachable connection between the first and second parts, the fluid connector can be selectively connected to the second fluid receiver. When the fluid connector is not connected to the second fluid receiver, the working spray section of the fluid connector is in a state where it can deliver cleaning liquid to the environment being cleaned, i.e., in the working state of the suction cleaner.

2. The cleaning system for a suction cleaner as described in claim 1, characterized in that, The fluid connector is arranged circumferentially along the second part. Correspondingly, in the case where there is both a first fluid receiver and a second fluid receiver, the first fluid receiver and the second fluid receiver are staggered circumferentially along the first part. The fluid connector can be axially connected to one of the first fluid receiver and the second fluid receiver. In the case where there is only a second fluid receiver, the second fluid receiver is arranged circumferentially along the first part. The fluid connector can be axially connected to and disconnected from the second fluid receiver.

3. The cleaning system for a suction cleaner as described in claim 1, characterized in that, It also includes an air intake, which is connected to the second air passage in a clean state.

4. The cleaning system for a suction cleaner as described in claim 3, characterized in that, When in operation, the air intake is disconnected from the second air passage.

5. The cleaning system for a suction cleaner as described in claim 3, characterized in that, The second fluid receiver is equipped with an air inlet.

6. The cleaning system for a suction cleaner as described in claim 3, characterized in that, It also includes a flow guide chamber, with an air inlet and a second fluid receiver connected to the flow guide chamber. In the clean state, the airflow entering through the air inlet guides the clean liquid flowing into the flow guide chamber from the second fluid receiver and accelerates its delivery to the second air path.

7. The cleaning system for a suction cleaner as described in claim 6, characterized in that, In clean mode, the first air passage is disconnected from the second air passage, and airflow enters only through the air inlet.

8. The cleaning system for a suction cleaner as described in claim 7, characterized in that, The first air passage extends from the front of the first part to the rear of the first part. The front of the first part has a first opening of the first air passage, and the rear of the first part has a second opening of the first air passage. The rear of the first part has a first end face, and the front of the second part has a second end face. The first end face has a second opening, and the second end face has an inlet of the second air passage. In the working state, the first end face and the second end face are sealed together, and the first air passage is connected to the second air passage through the second opening. Dirt is sucked in from the first opening and transported to the second air passage from the second opening. In the cleaning state, at least the inlet of the second air passage is closed by the first end face, and the second air passage only takes in air through the air inlet hole.

9. The cleaning system for a suction cleaner as described in claim 8, characterized in that, The first end face has a first partition area and a second opening as a connecting area, and the second end face has a second partition area and an inlet of a second air passage as a connecting area. In the working state, the first partition area and the second partition area are located on the same side, and the second opening and the inlet of the second air passage are located on the same side. In the cleaning state, the first partition area and the inlet of the second air passage are located on the same side so that the first partition area closes the inlet of the second air passage, and the second opening and the second partition area are located on the same side so that the second partition area closes the second opening.

10. The cleaning system for a suction cleaner as described in claim 9, characterized in that, In operation, the fluid connector and the second fluid receiver are positioned 180 degrees apart circumferentially along the first and / or second portions. When switching to a cleaning state, the first and second portions move relative to each other by 180 degrees to allow the fluid connector and the second fluid receiver to move relative to each other. Connect after 180 degrees, and at the same time, the first isolation zone corresponds to the inlet of the second air passage to close the inlet, and the second isolation zone corresponds to the second opening to close the second opening.

11. The cleaning system for a suction cleaner as claimed in claim 1, characterized in that, The first air passage extends from the front of the first part to the rear of the first part. The front of the first part has a first opening of the first air passage, and the rear of the first part has a second opening of the first air passage. In the working state, the second opening is connected to the second air passage. Dirt is sucked in from the first opening and transported to the second air passage from the second opening. When the first part and the second part are separated, the second opening is separated from the second air passage and exposed to the outside so that cleaning liquid can be poured in to clean the first air passage.

12. The cleaning system for a suction cleaner as described in claim 11, characterized in that, The rear of the first part has a connecting sleeve for connecting with the second part, and the second opening is located inside the connecting sleeve. In the second state, the connecting sleeve can be used to fill with cleaning liquid to clean the first gas path.

13. The cleaning system for a suction cleaner as described in claim 1, characterized in that, The front of the first part has a working component, and the rear of the first part is detachably connected to the front of the second part. In the case where there is both a first fluid receiver and a second fluid receiver, the detachable connection allows the fluid connector to selectively connect to one of the first fluid receiver and the second fluid receiver. In the case where there is only a second fluid receiver, the detachable connection allows the fluid connector to selectively connect to and disconnect from the second fluid receiver.

14. The cleaning system for a suction cleaner as described in any one of claims 1 to 11, 13, characterized in that, The rear of the first part is provided with a plug sleeve that communicates with the first air passage. The outer wall of the first part is provided with a second fluid receiver. The second fluid receiver is connected to the inside of the plug sleeve through a first connecting hole. The front of the second part is provided with a plug tube. The plug tube has a cleaning flow channel and an extension of the second air passage. The plug sleeve and the plug tube are detachably plugged in. In the working state, the outer wall of the plug tube separates the first connecting hole from the inside of the plug sleeve. In the cleaning state, the second fluid receiver, the first connecting hole, the cleaning flow channel, and the extension of the second air passage are connected in sequence.

15. The cleaning system for a suction cleaner as described in claim 14, characterized in that, In cases with a flow guide chamber, the clean flow channel also serves as the flow guide chamber.

16. The cleaning system for a suction cleaner as described in claim 14, characterized in that, In operation, the inner wall of the connector covers the inlet of the clean flow channel.

17. The cleaning system for a suction cleaner as described in claim 16, characterized in that, In the working state, the cleaning channel and the second fluid receiver are positioned 180 degrees apart circumferentially along the first and / or second portions. When switching to the cleaning state, the first and second portions move relative to each other by 180 degrees to allow the cleaning channel and the second fluid receiver to move relative to each other. After a 180-degree turn, the connection is made again, at which point the inlet of the clean flow channel is connected to the first connecting hole.

18. The cleaning system for a suction cleaner as described in claim 1 or 3, characterized in that, In the clean state, the second air passage is still connected to the first air passage. While receiving the clean fluid guided by the second fluid receiver, the second air passage is also drawing air from the environment through the first air passage. Or, in the case of an air inlet, the second air passage draws air in through both the air inlet and the first air passage at the same time.

19. A suction cleaner employing the cleaning system according to any one of claims 1 to 18, comprising a fluid delivery system for delivering cleaning liquid to the surface to be cleaned and a fluid recovery system for extracting contaminants from the surface, characterized in that, The fluid recovery system includes the aforementioned cleaning system.

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