Brush head assembly and cleaning device

Abstract

The application discloses a brush head assembly and a cleaning device. The switching mechanism of the cleaning device is configured to be capable of switching between a first state and a second state. When the switching mechanism switches to the first state, the switching mechanism blocks the first channel and opens the second channel, so that the second channel can absorb the first type of dirt on the surface to be cleaned; and when the switching mechanism switches to the second state, the switching mechanism blocks the second channel and opens the first channel, so that the first channel can absorb the second type of dirt on the surface to be cleaned. The cleaning device of the application sets the switching mechanism, so that the first channel and the second channel respectively perform the work of absorbing dirt, so as to ensure that the suction force of the first channel and the second channel can meet the requirements, and is beneficial to improving the cleaning effect of the cleaning device.

Description

TECHNICAL FIELD

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

[0002] Cleaning equipment such as scrubber and cleaning machine with cleaning function can facilitate users to clean floor, carpet and other work, and bring much convenience to users, and thus is widely applied. Two suction ports are usually arranged on the floor brush of the scrubber, and are respectively used for absorbing dirty water and dirt. However, the two suction ports on the scrubber usually simultaneously perform the work of absorbing dirty water and dirt at present, which leads to that the suction force of part of the suction ports cannot meet the requirement of the equipment, and thus the cleaning effect of the scrubber is poor at present. SUMMARY

[0003] The present application provides a brush head assembly and a cleaning device, which are beneficial to improve the cleaning effect of the cleaning device.

[0004] The present application provides a cleaning device, which is characterized in that the cleaning device comprises a device main body, a first channel arranged on the device main body, a second channel arranged on the device main body, and a switching mechanism arranged on the device main body; wherein the switching mechanism is configured to be capable of being switched between a first state and a second state; when the switching mechanism is switched to the first state, the switching mechanism blocks the first channel and opens the second channel, so that the second channel can absorb a first type of dirt; and when the switching mechanism is switched to the second state, the switching mechanism blocks the second channel and opens the first channel, so that the first channel can absorb a second type of dirt.

[0005] In an embodiment of the present application, the switching mechanism comprises a switching member rotatably arranged on the device main body; wherein when the switching mechanism is switched to the first state, the switching member is rotated to block the first channel and open the second channel; and when the switching mechanism is switched to the second state, the switching member is rotated to block the second channel and open the first channel.

[0006] In an embodiment of the present application, the first channel has a first connecting port; the second channel has a second connecting port; the cleaning device further comprises a main channel for connecting a negative pressure source, and the main channel has a third connecting port; wherein the first connecting port, the second connecting port and the third connecting port are sequentially arranged around the rotation axis of the switching member; when the switching member is rotated to block the first connecting port, the second connecting port and the third connecting port are in fluid communication, the negative pressure source creates a negative pressure environment in the second channel through the main channel, so that the second channel can absorb the first type of dirt; and when the switching member is rotated to block the second connecting port, the first connecting port and the third connecting port are in fluid communication, the negative pressure source creates a negative pressure environment in the first channel through the main channel, so that the first channel can absorb the second type of dirt.

[0007] In an embodiment of the present application, the cleaning device further comprises a channel member arranged on the device body; wherein the channel member comprises a confluence portion having a confluence channel inside, wherein the switching member is arranged in the confluence channel; a first channel portion, at least part of the first channel is in the first channel portion, and the first channel is in fluid communication with the confluence channel through a first connecting port; a second channel portion, at least part of the second channel is in the second channel portion, and the second channel is in fluid communication with the confluence channel through a second connecting port; and a third channel portion, at least part of the main channel is in the third channel portion, and the main channel is in fluid communication with the confluence channel through a third connecting port.

[0008] In an embodiment of the present application, the cleaning device is capable of moving on the surface to be cleaned to clean the surface to be cleaned; the switching mechanism further comprises a transmission assembly in transmission connection with the switching member and capable of interfering with the surface to be cleaned; wherein when the cleaning device moves in a first direction, the transmission assembly drives the switching member to rotate to block the first channel and open the second channel in response to the force from the surface to be cleaned; when the cleaning device moves in a second direction, the transmission assembly drives the switching member to rotate to block the second channel and open the first channel in response to the force from the surface to be cleaned; the first direction is opposite to the second direction.

[0009] In an embodiment of the present application, the transmission assembly comprises a gear set in transmission connection with the switching member, and a linkage connecting rod in transmission connection with the gear set and capable of interfering with the surface to be cleaned; wherein when the cleaning device moves in a first direction, the linkage connecting rod rotates in response to the force from the surface to be cleaned to drive the switching member to rotate to block the first channel and open the second channel through the gear set; when the cleaning device moves in a second direction, the linkage connecting rod reversely rotates in response to the force from the surface to be cleaned to drive the switching member to rotate to block the second channel and open the first channel.

[0010] In an embodiment of the present application, the gear set comprises a first gear, wherein the first gear comprises a gear body synchronously rotating with the switching member, a tooth portion arranged on the gear body and in transmission connection with the linkage connecting rod, and a first limiting portion arranged on the gear body; the cleaning device further comprises a channel member, wherein the switching member is arranged on the channel member, the channel member has a second limiting portion and a third limiting portion, the second limiting portion and the third limiting portion are distributed apart from each other around the rotation axis of the switching member, and the first limiting portion is between the second limiting portion and the third limiting portion; wherein when the first limiting portion rotates with the switching member to abut against the second limiting portion, the switching member rotates to block the first channel and open the second channel; and when the first limiting portion rotates with the switching member to abut against the third limiting portion, the switching member rotates to block the second channel and open the first channel.

[0011] In an embodiment of the present application, the switching member comprises a rotating part rotatably arranged on the device body, and a blocking part arranged on the rotating part, the blocking part being capable of rotating with the rotating part to block the first channel or the second channel.

[0012] In an embodiment of the present application, the cleaning device is capable of moving on the surface to be cleaned to clean the surface to be cleaned; the first channel has a first suction port for absorbing the second type of dirt, and the second channel has a second suction port for absorbing the first type of dirt; wherein the minimum distance between the first suction port and the surface to be cleaned is less than the minimum distance between the second suction port and the surface to be cleaned.

[0013] In an embodiment of the present application, the first channel has a first suction port for absorbing the second type of dirt, and the second channel has a second suction port for absorbing the first type of dirt; the cleaning device further comprises a cleaning roller brush arranged on the device body; wherein the first suction port is located on one side of the cleaning roller brush, the first channel extends from the first suction port to the other side of the cleaning roller brush along the circumferential direction of the cleaning roller brush, the second channel and the switching mechanism are both located on the other side, and the second suction port faces the cleaning roller brush.

[0014] In an embodiment of the present application, the cleaning device further comprises a cleaning roller brush arranged on the device body and used for cleaning the surface to be cleaned; first and second cleaning members arranged on the device body and used for stripping the winding objects on the cleaning roller brush, and the winding objects stripped by the first and second cleaning members can be absorbed by the second channel; wherein the first and second cleaning members are arranged in sequence in the direction away from the surface to be cleaned; the first cleaning member has at least two first comb teeth, and the at least two first comb teeth are arranged in sequence and spaced apart in the axial direction of the cleaning roller brush; the second cleaning member has at least two second comb teeth, and the at least two second comb teeth are arranged in sequence and spaced apart in the axial direction of the cleaning roller brush; the first comb teeth are arranged relative to the gap between the adjacent two second comb teeth, and / or the second comb teeth are arranged relative to the gap between the adjacent two first comb teeth.

[0015] In an embodiment of the present application, the length of the first comb teeth is less than the length of the second comb teeth.

[0016] In an embodiment of the present application, the cleaning device further comprises a cleaning roller brush, the device body has a roller brush cavity, and the cleaning roller brush is arranged in the roller brush cavity; and a liquid injection member arranged on the device body, the liquid injection member being used for outputting cleaning liquid to clean the roller brush cavity; the first channel is further used for recovering the dirty cleaning liquid after the cleaning of the roller brush cavity is completed.

[0017] Correspondingly, the application also provides a brush head assembly. The brush head assembly comprises a device body, a first channel arranged on the device body, a second channel arranged on the device body, and a switching mechanism arranged on the device body. The switching mechanism is configured to be capable of switching between a first state and a second state. When the switching mechanism switches to the first state, the switching mechanism blocks the first channel and opens the second channel, so that the second channel can absorb the first type of dirt. When the switching mechanism switches to the second state, the switching mechanism blocks the second channel and opens the first channel, so that the first channel can absorb the second type of dirt.

[0018] The application has the following beneficial effects: Different from the prior art, the application provides a brush head assembly and a cleaning device. The cleaning device comprises a switching mechanism configured to be capable of switching between a first state and a second state. When the switching mechanism switches to the first state, the switching mechanism blocks the first channel and opens the second channel, so that the second channel can absorb the first type of dirt on the surface to be cleaned. When the switching mechanism switches to the second state, the switching mechanism blocks the second channel and opens the first channel, so that the first channel can absorb the second type of dirt on the surface to be cleaned.

[0019] In other words, the cleaning device of the application sets the switching mechanism, so that the first channel and the second channel respectively perform the work of absorbing dirt, so as to ensure that the suction force of the first channel and the second channel can meet the requirements, which is beneficial to improve the cleaning effect of the cleaning device. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the application, the following will briefly introduce the drawings needed to be used in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0021] Figures la- lb is a structural schematic diagram of an embodiment of the cleaning device of the application;

[0022] Figure 2 is a structural schematic diagram of an embodiment of the relative position relationship between the cleaning roller brush and the cleaning member of the application;

[0023] Figure 3 is a schematic diagram of a front view structure of an embodiment of the switching mechanism of the application;

[0024] Figure 4 is a schematic diagram of a rear view structure of an embodiment of the switching mechanism of the application;

[0025] Figure 5 is a structural schematic diagram of an embodiment of the cleaning device moving in a first direction of the application;

[0026] Figure 6 is a structural schematic view of an embodiment of the cleaning device moving in a second direction according to the present application;

[0027] Figure 7 is a structural schematic view of an embodiment of the cleaning member according to the present application.

[0028] Legend of reference signs:

[0029] 10 cleaning device; 11 device main body; 111 rolling brush cavity; 12 first channel; 121 first connecting port; 122 first suction port; 13 second channel; 131 second connecting port; 132 second suction port; 14 main channel; 141 third connecting port; 15 channel member; 151 confluence portion; 1511 confluence channel; 152 first channel portion; 153 second channel portion; 154 third channel portion; 155 second limiting portion; 156 third limiting portion; 16 cleaning rolling brush; 161 rolling brush main body; 162 cleaning strip; 163 cleaning area; 17 first cleaning member; 171 first comb tooth; 18 second cleaning member; 181 second comb tooth; 19 liquid injection member; 20 switching mechanism; 21 switching member; 211 rotating portion; 212 blocking portion; 22 transmission assembly; 221 gear set; 222 linkage connecting rod; 223 first gear; 2231 gear main body; 2232 tooth portion; 2233 first limiting portion; 224 second gear; 30 surface to be cleaned; 40 brush head assembly; 50 handheld assembly. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application. In addition, it should be understood that the specific embodiments described herein are only used to illustrate and explain the present application, and are not used to limit the present application. In the present application, the orientation words such as "upper", "lower", "left", "right" generally refer to the upper, lower, left and right of the device in the actual use or working state, and specifically refer to the direction of the drawing surface in the drawings.

[0031] The present application provides a brush head assembly and a cleaning device, which are described in detail below. It should be noted that the description order of the following embodiments is not used to limit the preferred order of the embodiments of the present application. In the following embodiments, the description of each embodiment has its own emphasis, and the parts not described in detail in a certain embodiment can be referred to the related description of other embodiments.

[0032] Please refer to Figures la- lb , Figures la- lbis a structural schematic diagram of an embodiment of the cleaning device.

[0033] In an embodiment, the cleaning device 10 can be a cleaning equipment such as a scrubber, a carpet cleaner, a fabric cleaner, etc. The cleaning device 10 is used to clean a surface to be cleaned 30, specifically, the cleaning device 10 can move on the surface to be cleaned 30 to clean the surface to be cleaned 30, wherein the surface to be cleaned 30 corresponds to a ground, a carpet surface, a sofa surface, etc. For example, the cleaning device 10 is described by taking a carpet cleaner as an example in the embodiment, and the cleaning device 10 can generally include a brush head assembly 40 and a handheld assembly 50. A user can hold the handheld assembly 50 to push the brush head assembly 40 to move on the carpet surface, and clean the carpet area passed by the brush head assembly 40. The first suction port 122 described below is located at the front side of the cleaning roller brush 16. The cleaning device 10 cleans the carpet by the cleaning roller brush 16, and the main motor of the cleaning device 10 generates negative pressure to recover the dirt on the carpet through the first suction port 122, so as to achieve the purpose of cleaning the carpet. Figure lb The brush head assembly 40 of the cleaning device 10 is exemplarily shown, and the handheld assembly 50 is omitted. Hereinafter, the brush head assembly 40 represents the cleaning device 10.

[0034] Specifically, the cleaning device 10 includes a device main body 11. The device main body 11 is a main part of the cleaning device 10, and functions to carry and protect the remaining parts of the cleaning device 10. The cleaning device 10 further includes a first channel 12 provided in the device main body 11, and the first channel 12 is used to absorb the second type of dirt (mainly liquid dirt on the surface to be cleaned 30). The cleaning device 10 further includes a second channel 13 provided in the device main body 11, and the second channel 13 is used to absorb the first type of dirt (mainly solid dirt such as the wrapping material peeled off from the cleaning roller brush 16 described below).

[0035] Further, the first channel 12 has a first suction port 122 for absorbing the second type of dirt, and the second channel 13 has a second suction port 132 for absorbing the first type of dirt. The minimum distance D between the first suction port 122 and the surface to be cleaned 30 is smaller than the minimum distance d between the second suction port 132 and the surface to be cleaned 30, that is, the first suction port 122 is closer to the surface to be cleaned 30 than the second suction port 132. In this way, the first suction port 122 is close to the surface to be cleaned 30, and can efficiently absorb the second type of dirt on the surface to be cleaned 30. Especially when the surface to be cleaned 30 is a carpet surface, a sofa surface or the like, which is relatively soft and has a certain water absorption, the first suction port 122 of the embodiment is close to the surface to be cleaned 30, which can more effectively ensure that the second type of dirt on the surface to be cleaned 30 can be effectively absorbed, and is conducive to improving the cleaning effect of the cleaning device 10 and improving the user experience.

[0036] The cleaning device 10 further comprises a cleaning roller brush 16 rotatably arranged on the device body 11. Specifically, the device body 11 has a roller brush cavity 111, and the cleaning roller brush 16 is arranged in the roller brush cavity 111. During the cleaning of the surface to be cleaned 30 by the cleaning device 10, the cleaning roller brush 16 rotates around its central axis to sweep the surface to be cleaned 30. The cleaning roller brush 16 can bring the first type of dirt on the surface to be cleaned 30, so that the second channel 13 can absorb the first type of dirt brought by the cleaning roller brush 16, and of course the second channel 13 can also directly absorb the first type of dirt on the surface to be cleaned 30.

[0037] Optionally, referring to Figure 2 , the cleaning roller brush 16 comprises a roller brush body 161 and cleaning strips 162. The roller brush body 161 is rotatably arranged on the device body 11, i.e. the roller brush body 161 can rotate around its central axis relative to the device body 11. The cleaning strips 162 are arranged on the outer periphery of the roller brush body 161. The cleaning strips 162 can rotate with the roller brush body 161, and can sweep the surface to be cleaned 30 to clean the surface to be cleaned 30 when the cleaning strips 162 sweep the surface to be cleaned 30.

[0038] It should be noted that the first channel 12 is used to absorb the second type of dirt and the second channel 13 is used to absorb the first type of dirt, which means that the main function of the first channel 12 is to absorb the second type of dirt, and the main function of the second channel 13 is to absorb the first type of dirt. It can be understood that the first channel 12 may absorb a part of the first type of dirt during the absorption of the second type of dirt, and the second channel 13 may absorb a part of the second type of dirt during the absorption of the first type of dirt.

[0039] In an embodiment, the cleaning device 10 further comprises a switching mechanism 20 arranged on the device body 11. The switching mechanism 20 is configured to be switched between a first state and a second state. When the switching mechanism 20 is switched to the first state, the switching mechanism 20 blocks the first channel 12 and opens the second channel 13, so that the second channel 13 can absorb the first type of dirt; and when the switching mechanism 20 is switched to the second state, the switching mechanism 20 blocks the second channel 13 and opens the first channel 12, so that the first channel 12 can absorb the second type of dirt.

[0040] The suction force of the first channel 12 to absorb the second type of dirt and the suction force of the second channel 13 to absorb the first type of dirt mainly depend on the vacuum degree inside the first channel 12 and the second channel 13. Since the first suction port 122 of the first channel 12 is close to the surface to be cleaned 30, the resistance at the position of the first suction port 122 is relatively large. If the first channel 12 and the second channel 13 simultaneously perform the work of absorbing dirt, the suction force of the first channel 12 will be too small to meet the requirements, which seriously affects the efficiency and effect of the first channel 12 to absorb the second type of dirt. Therefore, the embodiment sets the switching mechanism 20, so that the first channel 12 and the second channel 13 respectively perform the work of absorbing dirt. When one of the first channel 12 and the second channel 13 is open, the other is blocked by the switching mechanism 20, so that the open channel has sufficient vacuum degree and sufficient suction force, that is, the suction force of the first channel 12 and the second channel 13 can meet the requirements, which is beneficial to improve the cleaning effect of the cleaning device 10, especially the effect of the first channel 12 to absorb the second type of dirt.

[0041] Please refer to Figure 3 and Figure 4 , Figure 3 is a schematic view of a front view structure of an embodiment of the switching mechanism of the present application, Figure 4 is a schematic view of a rear view structure of an embodiment of the switching mechanism of the present application.

[0042] In an embodiment, the switching mechanism 20 includes a switching member 21, which is rotatably arranged on the device body 11. Specifically, the switching member 21 can rotate around the rotation axis O shown in the figure. When the switching mechanism 20 is switched to the first state, the switching member 21 rotates to block the first channel 12 and open the second channel 13. When the switching mechanism 20 is switched to the second state, the switching member 21 rotates to block the second channel 13 and open the first channel 12. Figure 3

[0043] Of course, in other embodiments of the present application, the switching mechanism 20 is not limited to the form of the above-mentioned switching member 21. For example, the switching mechanism 20 can include two electromagnetic valves, one electromagnetic valve is arranged in the first channel 12 and the other electromagnetic valve is arranged in the second channel 13. By controlling one electromagnetic valve to be opened and the other electromagnetic valve to be closed, one of the first channel 12 and the second channel 13 is open and the other is in a blocked state, so that the first channel 12 and the second channel 13 can perform the work of absorbing dirt respectively. The embodiment of the present application takes the switching member 21 as an example for description, which is only for the purpose of discussion and does not limit the present application.

[0044] ​Further, the switching member 21 comprises a rotating part 211 and a blocking part 212. The rotating part 211 is rotatably arranged on the device body 11, i.e. the rotating part 211 can rotate around the rotation axis O. The blocking part 212 is arranged on the rotating part 211 and can rotate with the rotating part 211 to block the first channel 12 or the second channel 13. Optionally, the blocking part 212 can be made of a sealing material.

[0045] In an embodiment, the first channel 12 has a first connecting port 121, which is specifically located at the end of the first channel 12 away from the first suction port 122. The second channel 13 has a second connecting port 131, which is specifically located at the end of the second channel 13 away from the second suction port 132. The cleaning device 10 further comprises a main channel 14 for connecting a negative pressure source, and the main channel 14 has a third connecting port 141.

[0046] The first connecting port 121, the second connecting port 131 and the third connecting port 141 are sequentially arranged around the rotation axis O of the switching member 21. When the switching member 21 is rotated to block the first connecting port 121, the second connecting port 131 and the third connecting port 141 are in fluid communication, and the negative pressure source creates a negative pressure environment in the second channel 13 through the main channel 14, so that the second channel 13 can absorb the first type of dirt. When the switching member 21 is rotated to block the second connecting port 131, the first connecting port 121 and the third connecting port 141 are in fluid communication, and the negative pressure source creates a negative pressure environment in the first channel 12 through the main channel 14, so that the first channel 12 can absorb the second type of dirt.

[0047] Optionally, the negative pressure source can be a negative pressure fan or the like, which can be arranged on a handheld assembly or the brush head assembly 40 of the cleaning device 10 and connected to the main channel 14 in the brush head assembly 40 through a corresponding pipeline, which is not limited here.

[0048] Further, the cleaning device 10 further comprises a channel member 15 arranged on the device body 11. The channel member 15 comprises a converging part 151, a first channel part 152, a second channel part 153 and a third channel part 154. The converging part 151 has a converging channel 1511 inside, and the switching member 21 is arranged in the converging channel 1511. At least part of the first channel 12 is in the first channel part 152, and the first channel 12 is in fluid communication with the converging channel 1511 through the first connecting port 121, i.e. the first connecting port 121 is at the connection between the first channel part 152 and the converging part 151. Figure 3A portion of the first channel 12 is shown in the first channel portion 152, and the rest of the first channel 12 is shown in the device body 11. At least a portion of the second channel 13 is shown in the second channel portion 153, and the second channel 13 is in fluid communication with the converging channel 1511 through the second connecting port 131, i.e. the second connecting port 131 is at the connection between the second channel portion 153 and the converging portion 151. At least a portion of the main channel 14 is shown in the third channel portion 154, and the main channel 14 is in fluid communication with the converging channel 1511 through the third connecting port 141, i.e. the third connecting port 141 is at the connection between the third channel portion 154 and the converging portion 151.

[0049] For example, as shown in Figures la- lb , the first suction port 122 is located at one side of the cleaning roller brush 16, the first channel 12 extends from the first suction port 122 along the circumference of the cleaning roller brush 16 to the other side of the cleaning roller brush 16 opposite to the first suction port 122, the second channel 13 and the switching mechanism 20 are located at the other side of the cleaning roller brush 16, and the second suction port 132 faces the cleaning roller brush 16. The main channel 14 is located at the side of the second channel 13 and the switching member 21 away from the cleaning roller brush 16.

[0050] In an embodiment, the switching mechanism 20 further comprises a transmission assembly 22, which is in transmission connection with the switching member 21 to drive the switching member 21 to rotate. The transmission assembly 22 is capable of interfering with the surface to be cleaned 30, i.e. when the cleaning device 10 moves on the surface to be cleaned 30 to clean the surface to be cleaned 30, the transmission assembly 22 is capable of contacting the surface to be cleaned 30, and the relative movement between the cleaning device 10 and the surface to be cleaned 30 enables the surface to be cleaned 30 to apply a force to the transmission assembly 22 in the form of friction, and the transmission assembly 22 drives the switching member 21 to rotate correspondingly in response to the force.

[0051] In particular, referring to Figure 5 and Figure 6 , the cleaning device 10 is capable of moving on the surface to be cleaned 30 in a first direction (as shown by arrow X in Figure 5 , the same below) or a second direction (as shown by arrow Y in Figure 6 , the same below). The first direction and the second direction are opposite, i.e. one of the first direction and the second direction is the forward direction of the cleaning device 10, and the other is the backward direction of the cleaning device 10. Figure 5 The first direction is shown as the forward direction of the cleaning device 10. Figure 6 The second direction is shown as the backward direction of the cleaning device 10.

[0052] When the cleaning device 10 moves in the first direction, the transmission assembly 22 drives the switching member 21 to rotate to block the first passage 12 and open the second passage 13 in response to the force from the surface 30 to be cleaned; when the cleaning device 10 moves in the second direction, the transmission assembly 22 drives the switching member 21 to rotate to block the second passage 13 and open the first passage 12 in response to the force from the surface 30 to be cleaned. That is, the present embodiment makes the first passage 12 and the second passage 13 open respectively to perform the work of absorbing dirt by the cleaning device 10 advancing or retreating.

[0053] Further, the transmission assembly 22 comprises a gear set 221 and a linkage link 222. The gear set 221 is in transmission connection with the switching member 21. The linkage link 222 is in transmission connection with the gear set 221, that is, the linkage link 222 can drive the switching member 21 to rotate correspondingly through the gear set 221. Moreover, the linkage link 222 can interfere with the surface 30 to be cleaned, that is, the linkage link 222 is the element of the transmission assembly 22 that can interfere with the surface 30 to be cleaned.

[0054] When the cleaning device 10 moves in the first direction, the linkage link 222 rotates in response to the force from the surface 30 to be cleaned to drive the switching member 21 to rotate to block the first passage 12 and open the second passage 13 through the gear set 221; when the cleaning device 10 moves in the second direction, the linkage link 222 rotates reversely in response to the force from the surface 30 to be cleaned to drive the switching member 21 to rotate to block the second passage 13 and open the first passage 12.

[0055] For example, when the cleaning device 10 moves in the first direction, the surface 30 to be cleaned applies a force to the linkage link 222 in the direction opposite to the first direction, so that the switching member 21 rotates counterclockwise to block the first passage 12 and open the second passage 13, as shown in FIG. 2B. Figure 5 When the cleaning device 10 moves in the second direction, the surface 30 to be cleaned applies a force to the linkage link 222 in the direction opposite to the second direction, so that the switching member 21 rotates clockwise to block the second passage 13 and open the first passage 12, as shown in FIG. 2C. Figure 6

[0056] Further, the gear set 221 comprises a first gear 223, the first gear 223 is in transmission cooperation with the switching member 21 and can rotate synchronously, and the linkage link 222 drives the switching member 21 to rotate correspondingly through the first gear 223. For example, the gear set 221 further comprises a second gear 224, the second gear 224 is in transmission cooperation with the linkage link 222 and can rotate synchronously, and the second gear 224 is in meshing with the first gear 223, so that the linkage link 222 can drive the switching member 21 to rotate correspondingly.

[0057] ​The first gear 223 comprises a gear body 2231, a tooth portion 2232 and a first limiting portion 2233. The gear body 2231 is in transmission cooperation with the switching member 21 and both can rotate synchronously. The tooth portion 2232 is arranged on the gear body 2231 and is in transmission connection with the linkage link 222. The linkage link 222 drives the first gear 223 to rotate through the tooth portion 2232, thereby making the switching member 21 rotate correspondingly. The first limiting portion 2233 is arranged on the gear body 2231 and can rotate synchronously with the first gear 223 and the switching member 21.

[0058] The channel member 15 is provided with a second limiting portion 155 and a third limiting portion 156. The second limiting portion 155 and the third limiting portion 156 are distributed at intervals with respect to each other around the rotation axis O of the switching member 21, and the first limiting portion 2233 is between the second limiting portion 155 and the third limiting portion 156. When the first limiting portion 2233 rotates to abut against the second limiting portion 155 with the switching member 21, the switching member 21 rotates to block the first channel 12 and open the second channel 13; and when the first limiting portion 2233 rotates to abut against the third limiting portion 156 with the switching member 21, the switching member 21 rotates to block the second channel 13 and open the first channel 12.

[0059] For the above example, the first direction is the forward direction of the cleaning device 10, and the second direction is the backward direction of the cleaning device 10. When the cleaning device 10 moves in the first direction, the surface to be cleaned 30 applies a force to the linkage link 222 in the opposite direction of the first direction, so that the switching member 21 rotates counterclockwise. At this time, the switching member 21 blocks the first channel 12 and opens the second channel 13, and the first limiting portion 2233 abuts against the second limiting portion 155, which can limit the further counterclockwise rotation of the switching member 21 and keep the state that the switching member 21 blocks the first channel 12. When the cleaning device 10 moves in the second direction, the surface to be cleaned 30 applies a force to the linkage link 222 in the opposite direction of the second direction, so that the switching member 21 rotates clockwise. At this time, the switching member 21 blocks the second channel 13 and opens the first channel 12, and the first limiting portion 2233 abuts against the third limiting portion 156, which can limit the further clockwise rotation of the switching member 21 and keep the state that the switching member 21 blocks the second channel 13.

[0060] It should be noted that in other embodiments of the present application, the switching member 21 is not limited to being driven by the above-mentioned transmission assembly 22. For example, the switching member 21 can also be directly driven by a power element such as a motor, which is not limited herein.

[0061] Please refer to Figure 7 , Figure 7 which is a structural schematic view of an embodiment of the cleaning member of the present application.

[0062] In an embodiment, the cleaning device 10 further comprises cleaning members (including the first cleaning member 17 and the second cleaning member 18 described below). The cleaning members are arranged on the device body 11, and the cleaning members interfere with the cleaning roller brush 16 to strip the winding objects on the cleaning roller brush 16, and the stripped winding objects can be absorbed by the second channel 13.

[0063] During the cleaning process of the cleaning device 10 on the to-be-cleaned surface 30, the hairs, fibers, threads and other elongated objects of the person or animal on the to-be-cleaned surface 30 are likely to be wound on the cleaning roller brush 16. If the winding objects on the cleaning roller brush 16 are not cleaned for a long time, the cleaning ability of the cleaning roller brush 16 will be reduced, and the cleaning roller brush 16 and the corresponding power element are also likely to be damaged. Therefore, the cleaning members are used to strip the winding objects on the cleaning roller brush 16 in the embodiment, and the stripped winding objects can be absorbed by the second channel 13, so as to achieve the purpose of cleaning the winding objects on the cleaning roller brush 16.

[0064] Further, the arrangement positions of the cleaning members and the second suction port 132 of the second channel 13 are related to the turning of the cleaning roller brush 16. Specifically, as shown in Figure 2 the cleaning roller brush 16 has a cleaning area 163, and the cleaning strip 162 can be turned to the cleaning area 163 along with the roller brush body 161 to clean the to-be-cleaned surface 30. The cleaning area 163 is specifically located at the bottom of the cleaning roller brush 16. The cleaning strip 162 in the cleaning area 163 is turned towards the second suction port 132 and the cleaning members. The cleaning members are away from the to-be-cleaned surface 30 relative to the second suction port 132.

[0065] In the above manner, during the turning of the cleaning roller brush 16, the cleaning strip 162 turned out of the cleaning area 163 passes through the second suction port 132 and the cleaning members in sequence. The cleaning members can strip the winding objects adhered to the cleaning strip 162, and at this time, the stripped winding objects are just near the second suction port 132, so that the second channel 13 can absorb the winding objects stripped by the cleaning members through the second suction port 132.

[0066] In an embodiment, the cleaning members comprise the first cleaning member 17 and the second cleaning member 18, and the first cleaning member 17 and the second cleaning member 18 are arranged in sequence in the direction away from the to-be-cleaned surface 30. In other words, two groups of cleaning members, i.e., the first cleaning member 17 and the second cleaning member 18, are arranged in the embodiment, and the first cleaning member 17 and the second cleaning member 18 cooperate to clean the winding objects on the cleaning roller brush 16, which is conducive to improving the cleaning efficiency and effect of the winding objects.

[0067] Specifically, as shown in Figure 7As shown, the first cleaning member 17 has at least two first comb teeth 171, which are sequentially spaced along the axial direction of the cleaning roller brush 16. When the cleaning roller brush 16 passes through the first cleaning member 17, the comb teeth 171 of the first cleaning member 17 comb through the material, causing the tangled material on the cleaning roller brush 16 to be peeled off and absorbed by the second suction port 132. Similarly, the second cleaning member 18 has at least two second comb teeth 181, which are sequentially spaced along the axial direction of the cleaning roller brush 16. When the cleaning roller brush 16 passes through the second cleaning member 18, the comb teeth 181 of the second cleaning member 18 comb through the material, causing the tangled material on the cleaning roller brush 16 to be peeled off and absorbed by the second suction port 132.

[0068] Furthermore, the gap between the first comb tooth 171 and the gap between the second comb tooth 181 and the second comb tooth 181 are respectively arranged relative to the gap between the first comb tooth 171 and the second comb tooth 181. In this way, the first comb tooth 171 and the second comb tooth 181 are alternately distributed along the axial direction of the cleaning roller brush 16. Even if the tangled material does not come off after being combed by the first comb tooth 171 of the first cleaning member 17, the tangled material combed between the two adjacent first comb teeth 171 can further receive the combing action of the second comb tooth 181 of the second cleaning member 18, thus further improving the cleaning efficiency and cleaning effect of the tangled material.

[0069] Furthermore, since both the first comb teeth 171 of the first cleaning member 17 and the second comb teeth 181 of the second cleaning member 18 need to interfere with the cleaning roller brush 16, both the first comb teeth 171 and the second comb teeth 181 can peel off the tangled material on the cleaning roller brush 16. Figure 2 As shown, both the first comb tooth 171 and the second comb tooth 181 are located above the central axis of the cleaning roller brush 16, and the second comb tooth 181 is located above the first comb tooth 171. Therefore, the length of the first comb tooth 171 is less than the length of the second comb tooth 181, that is, the second comb tooth 181 has a longer length, so that the second comb tooth 181 can interfere normally with the cleaning roller brush 16.

[0070] It should be noted that the length of the first comb tooth 171 and the length of the second comb tooth 181 should both be understood as the length of the first comb tooth 171 and the second comb tooth 181 in the moving direction (first direction or second direction) of the cleaning device 10.

[0071] Please continue reading. Figures la- lb In one embodiment, the cleaning device 10 further includes a liquid injection component 19 disposed on the device body 11. The liquid injection component 19 is used to output cleaning liquid to clean the roller brush chamber 111. The first channel 12 is also used to recover the dirty cleaning liquid after the roller brush chamber 111 has been cleaned.

[0072] Specifically, when the brush cavity 111 needs to be cleaned, the cleaning liquid is output by the liquid injection member 19; then the cleaning brush 16 is controlled to rotate, and the rotation of the cleaning brush 16 generates centrifugal force to bring up the cleaning liquid, thereby cleaning the brush cavity 111; after the brush cavity 111 is cleaned, the cleaning brush 16 is controlled to stop rotating, and the dirty cleaning liquid is recovered through the first channel 12.

[0073] Optionally, the liquid injection member 19 can be connected to a cleaning liquid source inside the cleaning device 10. The cleaning liquid can be clean water, or a mixture of a cleaning agent and clean water, etc., which is not limited herein.

[0074] In an embodiment, the brush head assembly 40 includes the device body 11. The brush head assembly 40 further includes the first channel 12, which is provided in the device body 11. The brush head assembly 40 further includes the second channel 13, which is provided in the device body 11. The brush head assembly 40 further includes the switching mechanism 20, which is provided in the device body 11. The switching mechanism 20 is configured to be switchable between a first state and a second state; when the switching mechanism 20 is switched to the first state, the switching mechanism 20 blocks the first channel 12 and opens the second channel 13, so that the second channel 13 can absorb the first type of dirt; and when the switching mechanism 20 is switched to the second state, the switching mechanism 20 blocks the second channel 13 and opens the first channel 12, so that the first channel 12 can absorb the second type of dirt.

[0075] The technical solutions provided in the embodiments of the present application will be described below in conjunction with specific application scenarios.

[0076] Application scenario one:

[0077] The carpet cleaning machine is applied to clean a carpet. The carpet cleaning machine includes the device body 11. The carpet cleaning machine further includes the first channel 12, which is provided in the device body 11. The carpet cleaning machine further includes the second channel 13, which is provided in the device body 11. The carpet cleaning machine further includes the switching mechanism 20, which is provided in the device body 11. The switching mechanism 20 is configured to be switchable between a first state and a second state. When the switching mechanism 20 is switched to the first state, the switching mechanism 20 blocks the first channel 12 and opens the second channel 13, so that the second channel 13 can absorb the first type of dirt; and when the switching mechanism 20 is switched to the second state, the switching mechanism 20 blocks the second channel 13 and opens the first channel 12, so that the first channel 12 can absorb the second type of dirt.

[0078] Specifically, the user pushes the carpet cleaning machine forward. The linkage link 222 rubs against the carpet, and the carpet exerts a backward force on the linkage link 222, so that the linkage link 222 rotates clockwise, that is, the switching member 21 rotates counterclockwise, at this time, the switching member 21 blocks the first channel 12 and opens the second channel 13, so that the second channel 13 can absorb the first type of dirt. Wherein, the airflow direction of the second channel 13 is shown by the dashed arrow. Figure 5 At the same time, the cleaning roller brush 16 is in a rotating state, and the entanglements on the cleaning roller brush 16 are stripped off from the cleaning roller brush 16 by the cleaning member comb, and the stripped entanglements are absorbed by the second suction port 132 of the second channel 13.

[0079] The user pushes the carpet cleaning machine backward. The linkage link 222 rubs against the carpet, and the carpet exerts a forward force on the linkage link 222, so that the linkage link 222 rotates counterclockwise, that is, the switching member 21 rotates clockwise, at this time, the switching member 21 blocks the second channel 13 and opens the first channel 12, so that the first channel 12 can absorb the second type of dirt on the carpet. Wherein, the airflow direction of the first channel 12 is shown by the dashed arrow. Figure 6

[0080] The brush head assembly and the cleaning device provided by the present application are described in detail above, and specific examples are applied to explain the principles and implementation modes of the present application. The above examples are only used to help understand the method and core idea of the present application; at the same time, for those skilled in the art, according to the idea of the present application, the specific implementation mode and application range will be changed, and the above description should not be understood as a limitation of the present application.​

Claims

1. A cleaning device, characterized in that, The cleaning device comprises: a device body; a first channel provided in the device body; a second channel provided in the device body; and a switching mechanism provided in the device body; wherein the switching mechanism is configured to be switchable between a first state and a second state; when the switching mechanism is switched to the first state, the switching mechanism blocks the first channel and opens the second channel, so that the second channel can absorb the first type of dirt; and when the switching mechanism is switched to the second state, the switching mechanism blocks the second channel and opens the first channel, so that the first channel can absorb the second type of dirt; the switching mechanism comprises a transmission assembly and a switching member, the transmission assembly is capable of interfering with a surface to be cleaned, and the switching member is rotatably provided in the device body; the transmission assembly comprises a linkage connecting rod, which is capable of interfering with the surface to be cleaned; when the cleaning device moves in a first direction, the linkage connecting rod rotates in response to the force from the surface to be cleaned to drive the switching member to rotate to block the first channel and open the second channel; when the cleaning device moves in a second direction, the linkage connecting rod reversely rotates in response to the force from the surface to be cleaned to drive the switching member to rotate to block the second channel and open the first channel, the first direction being opposite to the second direction.

2. The cleaning device according to claim 1, wherein: the first channel has a first connecting port; the second channel has a second connecting port; the cleaning device further comprises a main channel for connecting a negative pressure source, the main channel having a third connecting port; wherein the first connecting port, the second connecting port and the third connecting port are sequentially arranged around the rotation axis of the switching member; when the switching member rotates to block the first connecting port, the second connecting port and the third connecting port are in fluid communication, and the negative pressure source creates a negative pressure environment in the second channel through the main channel, so that the second channel can absorb the first type of dirt; and when the switching member rotates to block the second connecting port, the first connecting port and the third connecting port are in fluid communication, and the negative pressure source creates a negative pressure environment in the first channel through the main channel, so that the first channel can absorb the second type of dirt.

3. The cleaning device according to claim 2, further comprising: a channel member provided in the device body; wherein the channel member comprises: a confluence portion having a confluence channel inside, wherein the switching member is provided in the confluence channel; a first channel portion, at least part of the first channel being in the first channel portion, and the first channel being in fluid communication with the confluence channel through the first connecting port; a second channel portion, at least part of the second channel being in the second channel portion, and the second channel being in fluid communication with the confluence channel through the second connecting port; and ​ ​ A third passage portion, at least a portion of the main passage is in the third passage portion, and the main passage is in fluid communication with the converging passage through the third connecting port.

4. The cleaning device according to claim 1, wherein, The transmission assembly comprises: a gear set in transmission connection with the switching member; When the cleaning device moves towards the first direction, the linkage link rotates in response to the force from the surface to be cleaned to drive the switching member to rotate to block the first passage and open the second passage through the gear set.

5. The cleaning device according to claim 4, wherein, The gear set comprises a first gear, wherein the first gear comprises: a gear body rotating synchronously with the switching member; a tooth portion provided on the gear body and in transmission connection with the linkage link; and a first limiting portion provided on the gear body; a passage member, the switching member is provided on the passage member, wherein the passage member has a second limiting portion and a third limiting portion distributed at intervals with respect to the rotation axis of the switching member, and the first limiting portion is between the second limiting portion and the third limiting portion; When the first limiting portion abuts against the second limiting portion as the switching member rotates, the switching member rotates to block the first passage and open the second passage; and when the first limiting portion abuts against the third limiting portion as the switching member rotates, the switching member rotates to block the second passage and open the first passage.

6. The cleaning device according to any one of claims 1 to 5, wherein, The switching member comprises: a rotating portion rotatably provided on the device body; and a blocking portion provided on the rotating portion, the blocking portion being capable of rotating with the rotating portion to block the first passage or the second passage.

7. The cleaning device of any one of claims 1 to 5, wherein, The first passage has a first suction port for absorbing the second type of dirt, and the second passage has a second suction port for absorbing the first type of dirt; wherein the minimum distance between the first suction port and the surface to be cleaned is less than the minimum distance between the second suction port and the surface to be cleaned.

8. The cleaning device according to any one of claims 1 to 5, wherein, The first passage has a first suction port for absorbing the second type of dirt, and the second passage has a second suction port for absorbing the first type of dirt; a cleaning roller brush provided on the device body; The first suction port is located on one side of the cleaning roller brush, the first passage extends from the first suction port along the circumference of the cleaning roller brush to the other side of the cleaning roller brush opposite to the one side, the second passage and the switching mechanism are both located on the other side, and the second suction port faces the cleaning roller brush.

9. The cleaning device according to any one of claims 1 to 5, wherein, a cleaning roller brush provided on the device body and used for cleaning the surface to be cleaned; A first cleaning member and a second cleaning member are arranged on the device body to strip the winding objects on the cleaning roller brush, and the winding objects stripped by the first cleaning member and the second cleaning member can be absorbed by the second channel; The first cleaning member and the second cleaning member are arranged in sequence in a direction away from the surface to be cleaned; the first cleaning member has at least two first comb teeth which are arranged in sequence and spaced apart in the axial direction of the cleaning roller brush; the second cleaning member has at least two second comb teeth which are arranged in sequence and spaced apart in the axial direction of the cleaning roller brush; the first comb teeth are arranged relative to the gap between the adjacent two second comb teeth, and / or the second comb teeth are arranged relative to the gap between the adjacent two first comb teeth.

10. The cleaning device according to claim 9, wherein The length of the first comb teeth is smaller than the length of the second comb teeth.

11. The cleaning device according to any one of claims 1 to 5, wherein The device body has a roller brush cavity, and the cleaning roller brush is arranged in the roller brush cavity; and A liquid injection member is arranged on the device body, and the liquid injection member is used to output cleaning liquid to clean the roller brush cavity; and the first channel is also used to recover the dirty cleaning liquid after the roller brush cavity is cleaned. The device body has a roller brush cavity, and the cleaning roller brush is arranged in the roller brush cavity; and 12. A brush head assembly characterized in that, A liquid injection member is arranged on the device body, and the liquid injection member is used to output cleaning liquid to clean the roller brush cavity; and the first channel is also used to recover the dirty cleaning liquid after the roller brush cavity is cleaned. The device body has a roller brush cavity, and the cleaning roller brush is arranged in the roller brush cavity; and A liquid injection member is arranged on the device body, and the liquid injection member is used to output cleaning liquid to clean the roller brush cavity; and the first channel is also used to recover the dirty cleaning liquid after the roller brush cavity is cleaned. The switching mechanism includes a transmission assembly and a switching member, the transmission assembly can interfere with the surface to be cleaned, and the switching member is rotatably arranged on the device body; The transmission assembly includes a linkage link, and the linkage link can interfere with the surface to be cleaned; When the brush head assembly moves in a first direction, the linkage link rotates in response to the force from the surface to be cleaned to drive the switching member to rotate to block the first channel and open the second channel; when the brush head assembly moves in a second direction, the linkage link reverses rotation in response to the force from the surface to be cleaned to drive the switching member to rotate to block the second channel and open the first channel, the first direction being opposite to the second direction. ​ ​ ​ ​

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