Cleaning equipment and base assembly

Abstract

The embodiment of the invention provides cleaning equipment and a base assembly, the cleaning equipment comprises an equipment body and the base assembly arranged at the bottom end of the equipment body, and a suction mechanism is arranged on one of the equipment body and the base assembly. The base assembly comprises a base body, a suction nozzle located at the bottom end of the front side of the base body and a suction nozzle cover plate which abuts against the suction nozzle and is movably arranged on the base body. By operating the suction nozzle cover plate, inlets of the cover plate channel and the adsorption channel can be exposed so that an operator can conveniently clean the cover plate channel and the adsorption channel. The suction nozzle is provided with a suction inlet, the suction nozzle cover plate is provided with a cover plate channel communicated with the suction inlet, and the cover plate channel is communicated with the suction mechanism through an adsorption channel. The suction nozzle and the suction nozzle cover plate are separately arranged, so that the connection between the suction nozzle cover plate and the seat body cannot be influenced by the connection between the suction nozzle and the seat body, and the reliability of the connection between the suction nozzle and the seat body is ensured, and no gap is generated. And when the suction nozzle cover plate is mounted on the seat body, fluff cannot be clamped, so that the smoothness of movement of the cleaning equipment is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of cleaning appliances, and in particular to a cleaning device and a base assembly. Background Art

[0002] With the progress of technology, in order to reduce the labor intensity of people, cleaning devices capable of automatically cleaning the surface to be cleaned have emerged. At present, cleaning devices can not only clean the ground, but also clean the surfaces of blankets and other fabrics (for example, indoor decorations).

[0003] In order to clean the surface of the blanket more thoroughly, a flat and long nozzle is often arranged on the base assembly under the cleaning device, which is beneficial to being close to the root of the fabric fluff and adsorbing the dust at the root of the fluff. However, fluff and hair and other garbage are easily attached to the suction port and the adsorption channel of the nozzle. In the long run, there is a risk of blocking the suction port and the adsorption channel, and long-term accumulation will breed bacteria and generate odors. The prior art is to arrange the nozzle at the bottom end of the nozzle cover plate. The nozzle and the nozzle cover plate are integrated into a nozzle assembly. The nozzle assembly is provided with a cover plate channel with a suction port communicated with the adsorption channel. However, when the cleaning device is located on the blanket, there is a risk of clamping the fluff when the nozzle assembly is installed on the blanket. In addition, when the connection between the nozzle assembly and the seat body is poorly connected, the gap between the nozzle and the base will also clamp the fluff during the movement of the cleaning device, hindering the movement of the cleaning device. Summary of the Invention

[0004] In view of the above problems, embodiments of the present invention are proposed. The purpose of the embodiments of the present invention is to provide a cleaning device in which the connection between the nozzle and the seat body is reliable and there is no gap, and the adsorption channel, the cover plate channel and the suction port are easy to clean.

[0005] To achieve this purpose, the embodiments of the present invention adopt the following technical solutions:

[0006] A cleaning device includes: a device body and a base assembly arranged at the bottom end of the device body, and a suction mechanism is arranged on one of the device body and the base assembly;

[0007] The base assembly includes:

[0008] A seat body, a nozzle located at the front bottom end of the seat body, and a nozzle cover plate that abuts against the nozzle and is movably arranged on the seat body;

[0009] The nozzle has a suction port, the nozzle cover plate has a cover plate channel communicated with the suction port, and the cover plate channel is communicated with the suction mechanism through an adsorption channel.

[0010] Another object of the embodiments of the present invention is to provide a base assembly in which the connection between the nozzle and the seat body is reliable without gaps, and the adsorption channel, the cover plate channel and the suction port are easy to clean.

[0011] To achieve this object, the embodiments of the present invention adopt the following technical solutions:

[0012] A base assembly, comprising:

[0013] A seat body, a nozzle located at the front bottom end of the seat body, and a nozzle cover plate that abuts against the nozzle and is movably disposed on the seat body;

[0014] The nozzle has a suction port, the nozzle cover plate has a cover plate channel communicating with the suction port, and the cover plate channel is communicated with the suction mechanism through an adsorption channel. The technical solution provided by the embodiments of the present invention separates the nozzle from the nozzle cover plate, so that the connection between the nozzle cover plate and the seat body will not affect the connection between the nozzle and the seat body, thereby ensuring the reliability of the connection between the nozzle and the seat body. In addition, when the nozzle cover plate is installed on the seat body, it will not clamp the fluff on the surface to be cleaned. The nozzle cover plate and the seat body can be movably connected. By operating the nozzle cover plate, the entrances of the cover plate channel and the adsorption channel can be exposed to facilitate the operator to clean the cover plate channel and the adsorption channel. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0016] Figure 1 Partial cross-sectional structure schematic diagram of the base assembly provided by an embodiment of the present invention Figure 1 ;

[0017] Figure 2 Partial cross-sectional structure schematic diagram of the base assembly provided by an embodiment of the present invention Figure 2 ;

[0018] Figure 3 Structural schematic diagram of the nozzle cover plate provided by an embodiment of the present invention;

[0019] Figure 4 Structural schematic diagram of the base assembly when the nozzle cover plate is removed provided by an embodiment of the present invention;

[0020] Figure 5 Structural schematic diagram of the base assembly provided by an embodiment of the present invention;

[0021] Figure 6 Schematic structural diagram of a cleaning device provided by an embodiment of the present invention;

[0022] Figure 7 Schematic structural diagram of an external device connected to a cleaning device provided by an embodiment of the present invention;

[0023] Figures 8 to 11 Schematic structural diagram of a base assembly provided by different embodiments of the present invention;

[0024] Figure 12 Schematic structural diagram of a locking pin and a reset member provided by an embodiment of the present invention.

[0025] 100. Base assembly;

[0026] 110. Seat body; 111. Accommodation cavity; 112. Front opening; 113. Pipeline; 114. Switching valve; 115. Rotary brush port; 116. Sprinkler port; 117. Switching plate; 118. First adsorption port; 119. Second adsorption port; 102. Adsorption channel;

[0027] 120. Suction nozzle; 121. Suction inlet; 122. Nozzle; 123. Spraying plate;

[0028] 130. Suction nozzle cover plate; 131. First seal; 132. Second seal; 101. Cover plate channel; 133. Cover plate body; 134. Suction nozzle flap; 135. Communication port; 136. Accessory socket cover plate; 137. Accessory socket; 138. Locking assembly; 1381. Locking member; 1382. Return member; 1383. Lock groove; 139. Third seal;

[0029] 140. Latch assembly; 141. Locking pin, 1411. Guide surface; 142. Lock port; 143. Reset member; 144. Press-to-unlock member;

[0030] 150. Pre-positioning assembly; 151. First positioning member; 152. Second positioning member;

[0031] 160. Rotary brush;

[0032] 170. Limiting structure; 171. Limiting groove; 172. Hook. Detailed implementation manners

[0033] In order to enable those skilled in the art to better understand the solution of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0034] When implementing the embodiments of the present invention, the inventor found that the flat and long suction nozzle of the cleaning device for cleaning the fabric surface is either non-detachable from the base assembly, or difficult to disassemble and assemble, or frequent disassembly will cause wear and breakage at the connection. Therefore, users cannot or rarely clean the suction nozzle and the suction nozzle cover plate during use. As the service life of the cleaning device increases, dirt is likely to accumulate on the lower surface of the nozzle cover and inside the suction nozzle air duct. If not cleaned and maintained, it is likely to cause problems such as stench and blockage, resulting in a very poor user experience.

[0035] The reason is that the suction nozzle cover plate is non-detachable, or the suction nozzle cover plate and the suction nozzle are of an integral structure and are connected by locking structures such as snap fasteners, lock catches or screws. In order to ensure proper installation, a guiding and positioning structure is provided between the suction nozzle and the seat body. Since the cleaning device cleans the fabric surface, the base assembly will sink to the bottom of the fabric fluff, and the suction nozzle needs to be close to or lower than the root of the fluff to correctly cooperate with the guiding and positioning structure on the base assembly. This results in the need to raise the base assembly by a certain distance when installing the suction nozzle and the suction nozzle cover plate on the device body. At the same time as raising the base assembly by a certain distance, it is also necessary to align with the guiding and positioning structure on the base assembly. Performing these two actions simultaneously is quite difficult, easily leading to improper assembly by the user and a poor experience. In addition, if the suction nozzle and the suction nozzle cover plate are connected to the base assembly by screws, frequent disassembly will cause the screw holes to slip, resulting in an increased gap between the suction nozzle and the base assembly, or the suction nozzle falling off the base assembly.

[0036] In view of the above problems, the embodiments of the present invention provide a cleaning device to solve the problems that the suction nozzle and the suction nozzle cover plate are not easy to disassemble and install from the base assembly, and to solve the problem of unreliable connection between the suction nozzle, the suction nozzle cover plate and the base assembly.

[0037] To this end, the present invention provides the following embodiments to solve or improve at least some of the above problems. In order to enable those skilled in the art to better understand the solution of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work belong to the scope of protection of the present invention.

[0038] Among some of the features described in the specification, claims, and the above-mentioned drawings of the present invention, descriptions such as "first", "second", etc. are used to distinguish different components, parts, modules, devices, etc., and do not represent a sequence, nor do they limit that "first" and "second" are of different types. Additionally, the embodiments described below are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts fall within the scope of protection of the present invention.

[0039] Embodiment 1:

[0040] Figure 1 is a partial cross-sectional structure schematic diagram of the base assembly provided by an embodiment of the present invention Figure 1 , Figures 5 to 8 is a structural schematic diagram of the base assembly provided by different embodiments of the present invention. Please refer to Figures 5 to 8 any one of Figure 1 .

[0041] This embodiment provides a cleaning device that can perform cleaning work on a surface to be cleaned. The surface to be cleaned includes but is not limited to a fabric surface, a floor surface, a tabletop, a leather surface, etc. The cleaning device includes a device body and a base assembly 100 provided at the bottom end of the device body. A suction mechanism is provided on one of the device body and the base assembly 100. The base assembly 100 is used to abut against the surface to be cleaned. An adsorption port is provided at the abutting portion of the base assembly 100 and the surface to be cleaned. The adsorption port is communicated with the suction mechanism through an adsorption channel 102. The suction mechanism can form a negative pressure in the adsorption channel 102, so that the external air flow enters the suction channel under the action of the negative pressure. The dirt on the surface to be cleaned can be driven into the adsorption channel 102 together with the air flow during the flow of the air flow.

[0042] In order to facilitate the accommodation of the dirt on the surface to be cleaned, as an implementable embodiment, a dirt collection box is provided on the device body or the base assembly 100. The dirt collection box is arranged on the adsorption channel 102 and is located on the path of the air flow. The dirt that enters the adsorption channel 102 together with the air flow will accumulate in the dirt collection box.

[0043] In order to prevent the dirt from following the adsorption air flow and separating from the dirt collection box and affecting the suction mechanism, as an implementable embodiment, a filter plug that blocks the passage of dirt but allows the passage of gas is provided on the dirt collection box, so as to prevent the adsorbed dirt from separating from the dirt collection box.

[0044] When the cleaning device cleans the fabric surface, since there may be long fluff on the fabric surface, such as blankets, etc., in order to ensure the cleaning effect, the base assembly 100 will be buried in the fluff. For the convenience of operation, users often directly place the cleaning device on the fabric surface, which will cause the base assembly 100 to directly press the fluff on the fabric surface below, so that the root of the fluff cannot be directly contacted. At this time, it is not easy to clean the root of the fluff, thus affecting the cleaning effect.

[0045] To solve the above problems, please refer to Figure 5 As an achievable embodiment, the base assembly 100 includes a seat body 110 and a suction nozzle 120 located at the front bottom end of the seat body 110. The shape of the suction nozzle 120 is flat and long. The suction nozzle 120 has a suction inlet 121, and the suction inlet 121 is communicated with the adsorption channel 102. That is to say, the suction inlet 121 is the adsorption port at this time. When the base assembly 100 moves with the user's push, the head of the flat and long suction nozzle 120 will push aside the fluff during the process of abutting against the fluff on the fabric surface and abut against the root of the fluff, so that the suction inlet 121 can be directly opposite to the root of the fluff, and the adsorption force generated by the suction mechanism can act on the root of the fluff, so that the dirt at the root of the fluff can enter the dirt collection box along with the adsorption air flow, achieving a good cleaning effect.

[0046] During the operation of the cleaning device, the adsorbed dirt contains a lot of hair or solid particles. These hair or solid particles may adhere to the wall of the suction inlet or in the adsorption channel 102 when entering the suction inlet or flowing in the adsorption channel. As the user continuously uses the cleaning device to clean the surface to be cleaned, the hair or solid particles gradually accumulate in the adsorption channel 102. After reaching a certain amount, there is not only a risk of blocking the suction inlet 121 or the adsorption channel 102, but also a situation where bacteria breed in the adsorption channel 201 or the suction inlet 121, resulting in peculiar smell.

[0047] To solve the above problems, in some achievable embodiments of the present invention, a possible structure of the seat body assembly 100 is that it further includes a suction nozzle cover plate 130. The suction nozzle cover plate 130 abuts against the suction nozzle 120 and is movably arranged on the seat body 110. A cover plate channel 101 is provided in the suction nozzle cover plate 130, one end of which is communicated with the suction inlet, and the other end is communicated with the adsorption channel 102. After the cleaning device works for a period of time, the suction nozzle cover plate 130 can be operated to shift relative to the seat body 110, exposing the cover plate channel 101 and the adsorption channel 102, and then the cover plate channel 101 and the adsorption channel 102 can be cleaned and then reset.

[0048] Specifically, in some feasible embodiments of the present invention, a feasible connection relationship between the nozzle cover plate 130 and the base body 110 is that the top end of the nozzle cover plate 130 is rotatably arranged on the base body 110. When it is necessary to clean the nozzle cover plate 130, the user can operate the nozzle cover plate 130 to rotate the top end of the nozzle cover plate 130 relative to the base body 110, so as to expose the openings of the cover plate channel 101 and the adsorption channel 102. At this time, the user can use a water spray gun to flush water into the cover plate channel 101 and the adsorption channel 102 for cleaning. Of course, it can also be that one side or the bottom end of the nozzle cover plate 130 is rotatably arranged on the base body 110, as long as it can be realized that the nozzle cover plate 130 can be displaced relative to the base body 110 to expose the openings of the cover plate channel 101 and the adsorption channel 102.

[0049] In some feasible embodiments of the present invention, another feasible connection relationship between the nozzle cover plate 130 and the base body 110 is that the nozzle cover plate 130 is detachably arranged on the base body 110. When it is necessary to clean the adsorption channel 102, the user can detach the nozzle cover plate 130 from the base body 110, and can take the nozzle cover plate 130 to flush the cover plate channel 101 under the faucet, and then reinstall it after cleaning.

[0050] Figure 2 Partial cross-sectional structure schematic diagram of the base assembly provided by an embodiment of the present invention Figure 5 , Figure 3 Structural schematic diagram of the nozzle cover plate provided by an embodiment of the present invention, Figure 4 Structural schematic diagram of the base assembly provided by an embodiment of the present invention, please refer to Figures 2 to 4 .

[0051] Since the nozzle cover plate 130 has a certain curvature and a certain width, if the spraying and washing method is adopted, the sprayed clear water will collide with the channel arm of the cover plate channel 101 at the curvature, thereby reducing the spraying force, and thus causing the problem of unclean cleaning.

[0052] To solve the above problems, in some feasible embodiments of the present invention, a feasible structure of the nozzle cover plate 130 is that the nozzle cover plate 130 includes a cover plate body 133 and a nozzle flap 134 that can be disposed on the cover plate body 133. The nozzle flap 134 and the cover plate body 133 enclose a cover plate channel 101. The bottom end of the nozzle flap 134 is rotatably disposed at the lower end of the cover plate body 133 to open or close the cover plate channel 101. The bottom end of the cover plate body 133 has a communication port 135 communicating with the cover plate channel 101. The communication port 135 communicates with the suction port, and a first seal 131 is disposed around the circumference of the communication port 135. When cleaning the cover plate channel 101, the cover plate body 133 can be rotated so that the cover plate body 133 is separated from the nozzle cover plate to open the cover plate channel 101, and the channel wall of the cover plate channel 101 can be fully brushed during cleaning, thereby ensuring that the cover plate channel 101 can be thoroughly cleaned and avoiding the adhesion of stubborn stains.

[0053] Furthermore, in order to avoid the stable connection between the cover plate body 133 and the nozzle flap 134 and prevent them from separating from each other due to non-human factors, as an optional solution, there is a locking assembly 138 between the cover plate body 133 and the nozzle flap 134. The locking assembly 138 is located at the center of the upper end of the flip cover body and the nozzle flap 134 to ensure the stability of locking and prevent skewing.

[0054] Specifically, as an optional solution, the locking assembly 138 includes a locking member 1381, a locking groove 1383, and a restoring member 1382. One end of the restoring member 1382 is connected to the locking member 1381, and the other end is connected to one of the cover plate body 133 and the nozzle flap 134. The locking groove 1383 is disposed on the other of the cover plate body 133 and the nozzle flap 134. The restoring member 1382 has a certain amount of compressive deformation. The locking member 1381 can move within the range where the restoring member 1382 can restore. The locking groove 1383 is located on the path of the restoring member 1382's restoration. The locking member 1381 has a wrench extending to the outside. The user can drive the locking member 1381 to move in the direction of compressing the restoring member 1382 by moving the wrench. At this time, the restoring member 1382 moves out of the locking groove 1383, thereby unlocking the cover plate body 133 and the nozzle flap 134. When the user releases the wrench, the locking member 1381 moves towards the locking groove 1383 under the restoring force of the restoring member 1382 until it abuts against the groove wall of the locking groove 1383 to achieve the locking between the cover plate body 133 and the nozzle flap 134.

[0055] To ensure the sealing performance of the cover plate channel 101, as an alternative solution, the nozzle cover plate further includes a third seal 139, which is disposed on the circumference of the nozzle flap 134 facing the cover plate body 133 and abuts against the cover plate body 133 to seal the adsorption channel. The third seal 139 can be made of rubber. The rubber seal not only has good sealing effect but also low cost.

[0056] In another embodiment, after the locking of the locking assembly 138 is released, the nozzle flap 134 can be removed from the cover plate body 133. After the user removes the nozzle flap 134, the nozzle flap 134 and the cover plate body 133 can be washed separately.

[0057] To enable the user to clean the cleaning device more efficiently, as an implementable embodiment, the nozzle 120 can also be disposed on the nozzle cover plate 130, that is, the nozzle 120 and the nozzle cover plate 130 are integrated into a nozzle assembly. When the nozzle assembly is removed from the base body 110 and the user takes the nozzle assembly to wash it under the faucet, the cover plate channel 101 and the suction port 121 can be cleaned simultaneously.

[0058] Figure 5 Schematic structural diagram of the base assembly provided by an embodiment of the present invention Figure 6 Schematic structural diagram of the cleaning device provided by an embodiment of the present invention Figure 7 Schematic structural diagram of an external device connected to the cleaning device provided by an embodiment of the present invention. Please refer to Figures 2 to 7 In some implementable embodiments of the present invention, the nozzle cover plate 130 further includes an accessory socket cover plate 136. The nozzle cover plate 130 has an accessory socket 137 with one end communicating with the adsorption channel 102 and the other end communicating with the outside. The accessory socket cover plate 136 covers the accessory socket 137 to block or open the accessory socket 137. The external device can communicate with the adsorption channel 102 through the accessory socket 137. The suction mechanism provides an adsorption force to the external device through the adsorption channel 102. The external device can apply this adsorption force to adsorb the solid waste on the surface to be cleaned and accommodate it in the dirt collection box through the adsorption channel.

[0059] The accessory socket cover plate 136 has a protruding handle to facilitate pulling the accessory socket cover plate 136 off the accessory socket 137. In addition, when unlocking the nozzle flap 134 and the cover plate body 133, four fingers can hold the handle and the thumb applies force to the wrench to drive the locking member 1381 to compress the restoring member 1382, unlocking the locking assembly 138 and realizing the single-handed opening of the cover plate channel 101 with simple operation.

[0060] As an alternative solution, the accessory socket cover plate 136 has a fifth seal, and the fifth seal surrounds the circumference of the accessory socket 137 to seal the accessory socket 137.

[0061] When the cleaning device is placed on the surface to be cleaned, such as a long-pile carpet, when the user removes the cover assembly for cleaning and then installs it back, the fluff of the long-pile carpet will be clamped between the cover assembly and the base 110, and in order to obtain a better cleaning effect, the suction port 121 is as close to the surface to be cleaned as possible, so the suction nozzle 120 almost contacts the surface to be cleaned. When the cover assembly is installed back after cleaning, the user needs to lift the base 110 and then install the cover assembly, which is inconvenient to operate.

[0062] To solve the above problems, please refer to Figures 8 to 11 As an achievable embodiment, the nozzle 120 is disposed on the base 110, the bottom end of the nozzle cover 130 abuts against the nozzle 120, and the nozzle cover 130 is detachably connected to the base 110 via a latch assembly 140. Due to the elongated shape of the nozzle 120, the fluff of the blanket can be pressed under the nozzle 120, so that the fluff can be prevented from being sandwiched between the nozzle cover 130 and the base 110 when the nozzle cover 130 is installed on the base 110. In addition, by separately arranging the suction nozzle 120 and the suction nozzle cover 130, the disassembly and installation between the suction nozzle cover 130 and the base 110 does not affect the connection relationship between the suction nozzle 120 and the base 110, thereby ensuring the reliability of the connection between the suction nozzle 120 and the base 110, and preventing the suction nozzle 120 and the base 110 from having a gap due to failure or poor connection between the suction nozzle assembly and the base 110, thereby preventing the cleaning device from being caught by fluff during the movement of the surface to be cleaned. In addition, the separation and locking between the suction nozzle cover 130 and the base 110 can be achieved by operating the latch assembly 140 to unlock or lock, and the structure is simple, so that the suction nozzle cover 130 can be easily disassembled for cleaning and then reassembled. After the suction nozzle cover 130 is disassembled, the user can also clean the suction port 121 of the suction nozzle 120, and the cleaning method includes but is not limited to cleaning with a brush, spraying water toward the suction port 121 with a nozzle, etc. This ensures that no dirt will accumulate in the cover channel 101 and at the suction port 121, and ensures that the normal use of the cleaning equipment will not block the adsorption channel 102. Of course, as an achievable embodiment, the suction nozzle 120 can also be detachably arranged on the base body 110. When the suction nozzle 120 needs to be cleaned, the suction nozzle 120 can be removed from the base body 110, and then installed back on the base body 110 after cleaning. When the front end opening 112 is installed on the base body 110 and it is inconvenient to clean the dirt from the suction port 121, the suction nozzle 120 can be removed from the base body 110 for cleaning. This can greatly reduce the number of times the suction nozzle 120 is disassembled and assembled on the body, delay the wear of the connection between the suction nozzle 120 and the base body 110, and ensure the service life.

[0063] The above-mentioned cleaning equipment includes, but is not limited to, carpet cleaners, vacuum cleaners, floor scrubbers, upright suction devices, canister devices, portable suction cleaners, or commercial suction cleaners, etc.

[0064] Figure 12 For a schematic structural diagram of the locking pin and the reset member provided in an embodiment of the present invention, please refer to Figure 12 .

[0065] Further, in some implementable embodiments of the present invention, in an implementable manner of the latch assembly 140, the latch assembly 140 includes a cooperating locking pin 141, a locking port 142, and a reset member 143 connected to the locking pin 141. The reset member 143 and the locking pin 141 are located on one of the seat body 110 and the nozzle cover plate 130, and the locking port 142 is located on the other. The locking pin 141 can move within the range where the reset member 143 can be reset. The locking port 142 is located on the reset path of the locking pin 141. The locking pin 141 can disengage from the locking port 142 during the movement, thereby unlocking the nozzle cover plate 130 from the seat body 110. When the reset member 143 is reset, it will definitely pass through the locking port 142. When passing through the locking port 142, the locking pin 141 is inserted into the locking port 142, so as to lock the nozzle cover plate 130 to the seat body 110. The structure is simple and easy to operate. As an alternative solution, please refer to Figures 8 to 11 , the locking pin 141 and the reset member 143 are located on the nozzle cover plate 130, and the locking port 142 is located on the seat body 110; it can also be that the locking pin 141 and the reset member 143 are located on the seat body 110, while the locking port 142 is located on the nozzle cover plate 130. As long as the cooperation between the locking pin 141 and the locking port 142 can lock or unlock the nozzle cover plate 130 from the seat body 110, no specific limitation is made in this embodiment. As an alternative solution, please refer to Figure 12The reset member 143 is a spring or a retaining spring. The reset member 143 is a spring and the reset member 143 and the locking pin 141 are located on the nozzle cover 130. One end of the spring is connected to the locking pin 141, and the other end of the spring is connected to the nozzle cover 130. The locking pin 141 can move along the direction of spring compression to compress the spring, thereby separating the locking pin 141 from the locking port 142. At this time, the nozzle cover 130 is unlocked from the seat body 110, and the nozzle cover 130 can be separated from the seat body 110. When the nozzle cover 130 is cleaned and aligned with the seat 110, the elastic force of the spring drives the spring to reset the lock pin 141. The lock pin 141 passes through the lock port 142 and is accommodated in the lock port 142. At this time, the spring has not yet returned to its natural state and still has a certain elastic force. Under the action of the elastic force, the lock pin 141 is pressed against the lock port 142, thereby locking the nozzle cover 130 and the seat 110, and preventing the nozzle cover 130 from separating from the seat 110. Of course, the reset member 143 can also be made of a material with elastic rubber material. As long as it has a certain displacement and can drive the pin lock to reset, this embodiment does not make specific limitations. In order to allow the lock pin 141 to smoothly enter the lock port 142 and avoid being restricted by the lock port 142, as an achievable embodiment, please refer to Figures 8 to 11 In any one of them, the end surface where the locking pin 141 cooperates with the locking opening 142 is a guide surface 1411 , and under the action of the guide surface 1411 , the locking pin 141 can smoothly slide into the locking opening 142 .

[0066] In order to facilitate the movement of the locking pin 141 , as a feasible embodiment, a handle is further provided on the locking pin 141 , and the operator can move the locking pin 141 by turning the handle, which is easy to operate.

[0067] As an achievable embodiment, there are multiple latch assemblies 140, and the connection strength of the multiple latch assemblies 140 is higher, and the stable connection between the nozzle cover plate 130 and the base 110 is ensured, and the nozzle cover plate 130 can be prevented from falling off or deflecting from the base 110 unintentionally. The handles on the lock pins 141 of the multiple latch assemblies 140 can be linked, and the operator only needs to operate the unlocking button to unlock or lock all the latch assemblies 140. As an achievable embodiment, the handles of the multiple latch assemblies 140 unlocked in one direction are connected to a linkage rod, and the end of the linkage rod forms an unlocking button. The operator pushes the end of the linkage rod to unlock or lock the multiple latch assemblies 140.

[0068] As the best embodiment, please refer to Figures 8 to 11Optionally, there are two latch assemblies 140, which are arranged on both sides where the nozzle cover plate 130 is connected to the base body 110. When unlocking the nozzle cover plate 130 from the base body 110, the operator only needs to use the thumb and index finger of one hand to respectively abut against the handles on the two latch assemblies 140 and apply a pinching force to bring the two handles closer, then the unlocking of the two latch assemblies 140 can be achieved. Releasing the handles can achieve the locking of the two latch assemblies 140. The structure is simple and convenient to operate. The arrangement of the two latch assemblies 140 can not only ensure the stable installation of the nozzle cover plate 130 on the base body 110, but also ensure the connection strength.

[0069] In this embodiment, please refer to Figure 3 and Figure 4 , there are latch assemblies 140 on both sides of the upper end where the nozzle cover plate 130 abuts against the base body 110. Since the docking port of the cover plate channel 101 and the adsorption channel 102 is located at the upper end of the nozzle cover plate 130, setting the latch assemblies 140 at the upper end of the nozzle cover plate 130 is closer to the docking port, enabling the cover plate channel 101 and the adsorption channel 102 to be stably docked without displacement between them, thus ensuring the adsorption effect.

[0070] In this embodiment, there is a lock port 142 on both sides of the upper end of the nozzle cover plate 130. Correspondingly, there are lock pins 141 that cooperate with the lock ports 142 on both sides of the upper end of the base body 110 where it abuts against the nozzle cover plate 130. For the convenience of user operation, the latch assembly 140 further includes a pressing unlocking member 144. By pressing the pressing unlocking member 144, the lock pin 141 can be driven to move towards the compression reset member 143 and retract into the base body 110 from the lock port 142, thereby achieving the unlocking between the nozzle cover plate 130 and the base body 110. Releasing the pressing unlocking member 144, the pressing unlocking member 144 resets. At this time, the lock pin 141 extends out of the base body 110 under the reset elastic force of the reset member 143. Since there are two latch assemblies, when removing the nozzle cover plate 130 from the base body 110, the user needs to press the pressing unlocking members 144 with both hands simultaneously. The operation is simple. And different operation methods can be used to distinguish the disassembly between the nozzle cover plate 130 and the base body 110 and the disassembly between the cover plate body 133 and the nozzle flap 134.

[0071] Specifically, as an alternative solution, the pressing unlocking member 144 has a first guiding inclined surface, and the locking pin 141 has a second guiding inclined surface. The first guiding inclined surface abuts against the second guiding inclined surface. When the pressing unlocking member 144 is pressed and moves downward, the first guiding inclined surface gives the second guiding inclined surface a force to move towards the seat body, thereby driving the locking pin 141 to retract into the seat body 110. When the pressing force disappears, the locking pin 141 extends out of the seat body 110 under the action of the reset member 143. During this process, the second guiding inclined surface gives the first guiding inclined surface an upward acting force, causing a relative displacement between the second guiding inclined surface and the first guiding inclined surface while driving the pressing unlocking member 144 to reset. The structure is simple. In some realizable embodiments of the present invention, another realizable way of the latch assembly 140 is that the latch assembly 140 includes a first magnetic attracting member and a second magnetic attracting member. The first magnetic attracting member is disposed on the nozzle cover plate 130, and the second magnetic attracting member is disposed on the seat body 110 corresponding to the first magnetic attracting member. When the nozzle cover plate 130 and the seat body 110 need to be unlocked, controlling the demagnetization of the second magnetic attracting member or the first magnetic attracting member can achieve the disappearance of the acting force between the first magnetic attracting member and the second magnetic attracting member. At this time, the nozzle cover plate 130 and the seat body 110 are unlocked, or the user can apply a force greater than the magnetic attraction force to the nozzle cover plate 130 to unlock the nozzle cover plate 130 and the seat body 110. The nozzle cover plate 130 can be detached from the seat body 110 for cleaning. After the nozzle cover plate 130 is cleaned and aligned with the seat body 110, controlling the magnetization of the second magnetic attracting member or the first magnetic attracting member. At this time, there is a magnetic attraction force between the second magnetic attracting member and the first magnetic attracting member, and the nozzle cover plate 130 cannot be detached from the seat body 110, thus realizing the locking between the nozzle cover plate 130 and the seat body 110.

[0072] As a realizable embodiment, one of the first magnetic attracting member and the second magnetic attracting member is an electromagnet, and the other is a magnet or a metal block that can generate a suction force when contacting a magnet, such as a steel block or an iron block, etc. The operation of charging the electromagnet can achieve the magnetization of the electromagnet, and the operation of powering off the electromagnet can achieve the demagnetization of the electromagnet. The operation is convenient. As a preferred solution, the second magnetic attracting member located on the seat body 110 is an electromagnet, and the second magnetic attracting member can be coupled to a power source device on the seat body 110 or the device body, and the power source device provides electrical energy for the second magnetic attracting member. Of course, the first magnetic attracting member located on the nozzle cover plate 130 can also be an electromagnet, and a battery coupled to the first magnetic attracting member is provided on the nozzle cover plate 130.

[0073] In some realizable embodiments of the present invention, another realizable way of the latch assembly 140 is that a groove is provided on the base body 110, a latch is provided on one of the upper groove wall of the groove and above the nozzle cover plate 130, and a clamping groove cooperating with the latch is provided on the other. The lower ends of the base body 110 and the nozzle cover plate 130 are also cooperated through the latch and the clamping groove assembly. It can be understood that whether the nozzle cover plate 130 is made of plastic material or metal material, it has a certain elastic deformation amount itself, can be compressed by a certain distance and can also be stretched by a certain distance. In order to ensure that the nozzle cover plate 130 can be tightly abutted against the periphery of the base body 110, a certain pulling force is applied to the nozzle cover plate 130 here to make it in a stretched state, and a certain tension is generated inside the nozzle cover plate 130. When both the upper end and the lower end of the nozzle cover plate 130 are connected to the base body 110, the nozzle cover plate 130 itself will apply a certain acting force to the base body 110 at the abutting position with the base body 110 in order to resist the internal tension. Thus, while being able to be tightly abutted against the base body 110, the nozzle cover plate 130 can maintain the locking with the base body 110 under the action of its own tension. It can be understood that the distance between the connection points on the base body 110 that are cooperatively connected with the upper and lower parts of the nozzle cover plate 130 is greater than the height of the nozzle cover plate 130, but within the range of the elastic stretching deformation of the nozzle cover plate 130. In other words, in the natural state, the nozzle cover plate 130 cannot reach the upper and lower connection points for connecting with the base body 110. Only when the nozzle cover plate 130 is stretched by a certain distance and is in an elastic stretching state can it be installed on the base body 110. Thus, the locking assembly for specifically locking the nozzle cover plate 130 on the base body 110 can be saved, the components can be saved, and the structure can be made more compact.

[0074] To facilitate the alignment of the nozzle cover plate 130 with the base body 110, as a realizable embodiment, please refer to Figure 8 and Figure 9 , at least one set of pre-positioning components 150 that cooperate with each other are provided on the nozzle cover plate 130 and the base body 110 to limit the position of the nozzle cover plate 130 installed on the base body 110 and guide the alignment of the latch assembly 140 between the nozzle cover plate 130 and the base body 110. When the nozzle cover plate 130 is installed on the base body 110, first operate the positioning components to be cooperatively connected. At this time, the precise installation between the nozzle cover plate 130 and the base body 110 can be realized without additionally operating the alignment of the nozzle cover plate 130 and the base body 110, which is convenient for the user to operate.

[0075] Specifically, in some realizable embodiments of the present invention, please refer to Figure 8 or Figure 3, One possible implementation of the pre-positioning component 150 is that the pre-positioning component 150 includes a cooperating first positioning member 151 and a second positioning member 152. The first positioning member 151 is disposed on the nozzle cover plate 130, and the second positioning member 152 is disposed on the base body 110 or the nozzle 120. The first positioning member 151 can rotate around the second positioning member 152 or the first positioning member 151 can move along the second positioning member 152. When the nozzle cover plate 130 is connected to the base body 110, the first positioning member 151 and the second positioning member 152 are first aligned and installed. After installation, operating the nozzle cover plate 130 to drive the first positioning member 151 to rotate or move around the second positioning member 152 can accurately position the nozzle cover plate 130 on the base body 110, and the operation is simple.

[0076] In some possible embodiments of the present invention, please refer to Figure 8 , One possible implementation of the first positioning member 151 and the second positioning member 152 is that the first positioning member 151 is a block with a certain arc. Corresponding to the position of the first positioning member 151, a groove is correspondingly provided on the base body 110. The second positioning member 152 is a limiting rod connecting two opposite sides of the groove. A limiting space is formed between the inner surface of the groove connecting two opposite sides of the groove and the limiting rod. The first positioning member 151 is inserted into the limiting space, and the arc-shaped block can rotate around the limiting rod to realize the rotation of the nozzle cover plate 130 relative to the base body 110. At this time, the driving lock pin 141 is moved along the direction of the compression reset member 143 to prevent the lock pin from hindering the rotation of the nozzle cover plate 130. When the nozzle cover plate 130 rotates to abut against the base body 110, the nozzle cover plate 130 and the base body 110 are accurately positioned. At this time, the lock pin 141 is released, and the lock pin 141 is inserted into the lock port 142 under the action of the reset member 143, and the latch assembly 140 locks the nozzle cover plate 130 on the base body 110.

[0077] In some possible embodiments of the present invention, please refer to Figure 3 , Another possible implementation of the first positioning member 151 and the second positioning member 152 is that the first positioning member 151 is an insertion block disposed at the lower end of the nozzle cover plate 130, and the second positioning member 152 is a slot disposed on the nozzle 120. The insertion block cooperates with the slot. When the insertion block is inserted into the slot and inserted to the bottom of the slot, the nozzle cover plate 130 and the base body 110 are accurately positioned. The structure is simple and the operation is convenient.

[0078] When installing the nozzle cover plate 130 on the base 110, first align the first positioning member 151 with the second positioning member 152 and insert it. During the insertion process, drive the locking pin 141 to move along the direction of the compression return member 143 to prevent the locking pin from obstructing the downward movement of the nozzle cover plate 130. When the first positioning member 151 is inserted into the predetermined position of the second positioning member 152, release the locking pin 141. Under the action of the return member 143, the locking pin 141 is inserted into the locking opening 142, and the latch assembly 140 locks the nozzle cover plate 130 on the base 110.

[0079] Since the dirt on the surface to be cleaned is sucked into the dirt collection box by the suction force of the suction mechanism when cleaning the surface to be cleaned, the better the sealing performance of the adsorption channel 102, the stronger the adsorption force on the surface to be cleaned. As an implementable embodiment, please refer to Figures 8 to 11 any one of them. A first seal 131 is provided at the contact between the nozzle cover plate 130 and the nozzle 120 to avoid the gap between the nozzle cover plate 130 and the nozzle 120 caused by the split reason, and ensure the sealing performance between the nozzle cover plate 130 and the nozzle 120.

[0080] Similarly, as an implementable embodiment, please refer to Figures 8 to 11 any one of them. A second seal 132 is provided at the contact between the nozzle cover plate 130 and the base 110. The second seal 132 can be provided on the nozzle cover plate 130 or on the base 110, as long as the sealing between the nozzle cover plate 130 and the base 110 can be achieved. This embodiment does not make specific limitations. Exemplarily, the first seal 131 and the second seal 132 can be made of rubber material. The rubber material has a weak texture, a certain elastic deformation amount, good sealing effect, and low cost.

[0081] It can be understood that if the nozzle cover plate 130 and the base 110 need to be strictly sealed, the first seal 131 needs to be compressed and deformed. At this time, under the action of the self-elastic restoring force of the first seal 131, a force in the reset direction of the first seal 131 will be applied to the nozzle cover plate 130. Although the pre-positioning assembly 150 can limit the position of the nozzle cover plate 130, the limited direction is different from the force applied to the nozzle cover plate 130 by the reset of the first seal 131. Therefore, the nozzle cover plate 130 will still shift under the action of the reset force of the first seal 131.

[0082] To avoid the above problems, please refer to Figures 2 to 4, in some feasible embodiments of the present invention, a vertical limiting structure 170 is provided at the abutting portion between the nozzle cover plate and the nozzle to limit the position of the nozzle cover plate in the vertical direction. Since the position of the first seal 131 is at the bottom end of the nozzle cover plate 130, in order to make the sealing effect of the first seal 131 better, the abutting surface between the nozzle cover plate 130 and the nozzle 120 is a horizontal plane. Therefore, the reset force direction of the first seal 131 is in the vertical direction. The limiting structure 170 can limit the force of the nozzle cover plate 130 in the vertical direction, thereby preventing the nozzle cover plate 130 from being affected by the reset force of the first seal 131, ensuring that the nozzle cover plate 130 will not shift, and ensuring good sealing between the nozzle cover plate 130 and the nozzle 120.

[0083] Specifically, a feasible structure of the limiting structure 170 is that the limiting structure 170 includes a limiting groove 171 and a hook 172 that cooperates with the limiting groove 171. The hook 172 is detachably clamped in the limiting groove 171. The limiting groove 171 is located on one of the nozzle or the nozzle cover plate, and the hook 172 is located on the other. When installing the nozzle cover plate 130 on the base 110, it is necessary to tilt at a certain angle so that the hook 172 can enter the limiting groove 171, and then rotate the nozzle cover plate 130 towards the base 110 so that the hook 172 is caught by the limiting groove 171. At this time, the latch assembly 140 just locks the nozzle cover plate 130 and the base 110. In one embodiment, the hook 172 includes a bent upward portion. As Figure 2 shown, when the hook 172 is received in the limiting groove 171, the bent upward portion of the hook 172 is located below the top wall of the limiting groove 171. Thus, the bent upward portion of the hook 172 is limited in the vertical direction by the top wall of the limiting groove 171, thereby firmly fixing the nozzle cover plate 130 on the nozzle 120 and ensuring the sealing performance.

[0084] It should be noted that since the function of the pre-positioning assembly 150 is to pre-position the installation position of the nozzle cover plate 130, and the limiting structure 170 can not only limit the displacement of the nozzle cover plate 130 in the vertical direction, but also play a role in pre-positioning the installation of the nozzle cover plate 130. Therefore, the limiting structure 170 can replace the pre-positioning assembly 150.

[0085] As a feasible embodiment, please refer to Figures 8 to 11For any one of the above, the base assembly 100 further includes a rotary brush 160. The base body 110 has a receiving cavity 111 with a bottom end and a front opening. The suction nozzle cover plate 130 is located at the front opening 112 of the receiving cavity 111 to open or block the front opening 112. The rotary brush 160 is located in the receiving cavity 111. Both ends of the rotary brush 160 are rotatably connected to two side walls of the receiving cavity 111. The bottom opening of the receiving cavity 111 is a rotary brush opening 115. The rotary brush 160 abuts against the surface to be cleaned through the rotary brush opening 115. The rotation of the rotary brush 160 can drive the dust on the surface to be cleaned to rotate together, achieving a dust-raising effect. In addition, during the rolling process of the rotary brush 160, it continuously abuts against the surface to be cleaned, which also plays a role in patting and raising dust. The raised dust is more likely to enter the suction port 121 along with the adsorption air flow, so the surface to be cleaned can be cleaned more thoroughly.

[0086] During the cleaning of the surface to be cleaned, dirt will adhere to the rotary brush 160 and hairs will wind around the rotary brush 160 as the rotary brush 160 rotates. Therefore, the rotary brush 160 needs to be cleaned regularly. As an implementable embodiment, the rotary brush 160 is detachably arranged in the receiving cavity 111 of the base body 110, and the rotary brush 160 can be disassembled through the front opening 112 of the receiving cavity 111 for easy cleaning. In addition, the upper surface of the suction nozzle 120 is flush with the bottom surface of the receiving cavity 111, which can avoid affecting the disassembly of the rotary brush 160.

[0087] There will sometimes inevitably be some solid dirt on the surface to be cleaned. When using a vacuum cleaner with only an adsorption function for cleaning, it is very difficult to clean these solid dirt thoroughly. To solve the above problems, please refer to Figure 4 As an implementable embodiment, at least one nozzle 122 is provided on the suction nozzle 120, and a clean water tank for loading clean water is provided on the base body 110 or the device body. The clean water tank is communicated with the nozzle 122 through a pipeline 113. The clean water tank is loaded with clean water. Through the pipeline 113, the clean water tank can supply clean water to the nozzle 122. When the user encounters solid dirt during the cleaning of the surface to be cleaned, the nozzle 122 can be operated to spray water to dissolve the solid dirt. In order to accelerate the dissolution of the solid dirt, after spraying clean water on the solid dirt, the cleaning device can be pushed so that the rotary brush 160 is located at the solid dirt. The continuous patting or brushing of the rotary brush 160 on the solid dirt can promote the dissolution of the solid dirt. After dissolution, it forms sewage, and the sewage can enter the dirt collection box through the adsorption channel 102 along with the adsorption air flow. Thus, the cleaning of the solid dirt is achieved.

[0088] When the area of solid dirt is relatively large, or when the surface to be cleaned is adhered with stains over a large area, if only the nozzle 122 is used to spray water, the cleaning efficiency is low. It can be understood that the nozzle 122 is a point, and even if the cleaning water sprays out in a fan shape from this point, there will still be a range limitation. When facing a large area of dirt, it is necessary to continuously operate the nozzle 122 to spray water, and the amount of water sprayed on the entire solid dirt surface is not uniform, which not only reduces the efficiency but also affects the subsequent cleaning effect.

[0089] To solve the above problems, as an implementable embodiment, please refer to Figure 11 , at least one water spraying plate 123 is further provided on the nozzle 122, and the water spraying plate 123 is communicated with the pipeline 113. It is equivalent to integrating multiple nozzles 122 in an interval array on a plate. When the cleaning device passes over a large area of solid dirt on the surface to be cleaned, it can spray water on the surface covered by the base assembly 100 and sweep with the rotary brush 160, so as to dissolve the solid dirt and timely suck the sewage into the sewage collection box, which not only improves the cleaning efficiency but also can control the uniform amount of water sprayed towards the solid dirt, ensuring a unified and good cleaning effect.

[0090] To facilitate the user to control the cleaning water to flow to the nozzle 122 or the water spraying plate 123 and make full use of the pipeline, please refer to Figure 8 , as an implementable embodiment, a switching valve 114 is further provided on the seat body 110 or the device body. The switching valve 114 is arranged on the pipeline 113 and located on the path through which the cleaning water flows. The switching valve 114 can control the cleaning water to flow to the nozzle 122 or the water spraying plate 123. When the water tank is located on the seat body 110, the pipeline is necessarily located on the seat body 110, and the switching valve 114 is located in the pipeline on the seat body 110. When the water tank is located on the device body, the pipeline connecting the water tank and the nozzle 122 penetrates the device body and the seat body 110. Then, at this time, the switching valve 114 can be arranged either on the pipeline located on the device body or on the pipeline located on the seat body 110. When the nozzle 122 is needed, the user can control the switching valve 114 to switch so that the cleaning water flows to the nozzle 122. When the water spraying plate 123 is needed, the user can control the switching valve 114 to switch so that the cleaning water flows to the water spraying plate 123. As an optional solution, the switching valve 114 is an electromagnetic valve, and the electromagnetic valve is coupled with the power source device on the device body. An operation interface for the user to interact with the cleaning device and a controller for controlling the normal operation of the electronic devices on the entire cleaning device are provided on the device body. Both the electromagnetic valve and the operation interface are coupled with the controller. The user can realize the commutation operation of the electromagnetic valve by operating the corresponding instructions on the operation interface. The controller and the display are conventional settings in the art, and a controller commonly used in the art that can be used for data calculation and processing and a touch screen display that can be used for displaying to the user can be applied to this embodiment.

[0091] To expand the applicable range of the cleaning device provided in this embodiment, please refer to Figure 11 , as an implementable embodiment, the base assembly 100 further includes a roller. The roller can replace the brush roll 160. A plurality of water spraying openings 116 are arranged at intervals along the axis of the roller on the cavity wall of the accommodating cavity 111 parallel to the axis of the roller. The water spraying openings 116 are communicated with the clean water tank through a pipeline 113, and the switching valve 114 can switch the cleaning water to flow to the water spraying openings 116. The cleaning water sprayed from the water spraying openings 116 can wet the roller. At this time, the cleaning device is a floor washer and can perform cleaning work on floor-like cleaning surfaces.

[0092] To enable the cleaning device with the floor washer function to have a wider cleaning range, the suction nozzle 120 and the suction nozzle cover plate 130 can be removed. At this time, there is no obstruction in front of the roller, and the floor at the wall root position can be cleaned through the front end of the roller.

[0093] It can be understood that the working principle of the floor washer is to use the wet roller to adsorb the dirt on the surface to be cleaned on the roller. When the roller rotates into the seat body 110, a scraper is provided in the seat body 110 to abut against the roller to scrape off the sewage attached to the roller. The scraped sewage is adsorbed into the sewage collection box along with the adsorption air flow. Therefore, a scraping strip abutting against the roller is provided on the cavity wall of the accommodating cavity 111 in this embodiment to scrape off the sewage adhered to the roller. It can be understood that since the bristles of the brush roll 160 are made of a flexible material, although the scraping strip will also abut against the bristles, it does not affect the rotation of the brush roll 160.

[0094] To ensure that the sewage of the cleaning device with the floor washer function is timely sucked into the sewage collection box, as an implementable embodiment, please refer to Figure 1, the seat body 110 further includes a switching plate 117. A first suction port 118 is provided on the chamber wall of the seat body 110 above the accommodation chamber 111, and a second suction port 119 is provided on the chamber wall of the seat body 110 away from the front end opening 112 of the accommodation chamber 111. Both the first suction port 118 and the second suction port 119 are communicated with the suction mechanism through a suction channel 102 on the seat body 110. The switching plate 117 is arranged in the suction channel 102 and on the path of the suction air flow. The switching plate 117 can move to switch the connection between the first suction port 118 and the suction mechanism or the connection between the second suction port 119 and the suction mechanism. The cover plate channel 101 is communicated with the first suction port 118, and the second suction port 119 is located below the scraper, so that the sewage scraped off by the scraper can be timely adsorbed into the sewage collection box through the second suction port 119 to ensure the cleaning effect. The switching plate 117 can be displaced according to different modes of the cleaning device to connect the suction mechanism with the cover plate channel 101 or with the second suction port 119. Specifically, when the cleaning device is cleaning the fabric surface, the switching plate 117 switches to connect the suction mechanism with the driving-in chamber, and when the cleaning device is cleaning a flat surface such as a bottom plate, it switches to connect the suction mechanism with the second suction port 119. Preferably, the switching plate 117 is an electromagnetic reversing valve, and the electromagnetic reversing valve is respectively coupled to the power source device and the controller. The user can operate the reversing function of the electromagnetic reversing valve through the display screen.

[0095] Embodiment 2:

[0096] This embodiment provides a base assembly seat body 110, including a seat body 110, a suction nozzle 120 and a suction nozzle cover plate 130. One side of the seat body 110 has an accommodation chamber 111 with a front end opening 112. The suction nozzle 120 is arranged on the seat body 110, located at the bottom end of the accommodation chamber 111 and abuts against the surface to be cleaned. The suction nozzle 120 has a suction port 121. The suction nozzle cover plate 130 abuts against the suction nozzle 120 and is detachably connected to the seat body 110 through at least one latch assembly 140 to block or open the front end opening 112. The accommodation chamber 111 and the suction nozzle cover plate 130 form a driving-in chamber. The suction port 121 is communicated with the bottom end of the driving-in chamber, and the top end of the driving-in chamber is communicated with the suction mechanism. The separate arrangement of the suction nozzle 120 and the suction nozzle cover plate 130 enables the disassembly and installation between the suction nozzle cover plate 130 and the seat body 110 not to affect the connection relationship between the suction nozzle 120 and the seat body 110, ensuring the reliability of the connection between the suction nozzle 120 and the seat body 110. In addition, by operating the latch assembly 140 to unlock or lock, the separation and locking between the suction nozzle cover plate 130 and the seat body 110 can be realized. The structure is simple and it is convenient to disassemble the suction nozzle cover plate 130 for cleaning and then reinstall it.

[0097] The structure of the base assembly seat body 110 in this embodiment and the functions of its various components are the same as those of the base assembly 100 on the cleaning device in Embodiment 1, and will not be elaborated here.

[0098] Application Scenario 1:

[0099] The wool carpet in the living room is full of dust, various debris, and a large area of solid dirt. The user uses the cleaning device provided in Embodiment 1 to clean the wool carpet.

[0100] First, confirm the mode of the cleaning device. If it is in the floor washer mode, the user switches the floor washer mode to the fabric cleaning mode through the touch display screen. In this mode, the switching plate 117 switches to connect the cover plate channel 101 with the suction mechanism.

[0101] Replace the roller with the rotary brush 160 and install it in the accommodation cavity 111. After installing the suction nozzle 120 on the seat body 110, align the first positioning member 151 on the suction nozzle cover plate 130 with the second positioning member 152, and operate the suction nozzle cover plate 130 to move so that the first positioning member 151 rotates around the second positioning member 152 or the first positioning member 151 moves along the second positioning member 152. At the same time, the user presses the index finger and thumb against the handles located on both sides of the top end of the suction nozzle cover plate 130 and applies an inward pinching force. At this time, the locking pin 141 moves along the reset member 143 towards the suction nozzle cover plate 130 under the action of the pinching force. When the suction nozzle cover plate 130 is aligned with the seat body 110, the user releases the handle. At this time, the locking pin 141 is inserted into the locking port 142 under the action of the reset force of the reset member 143, realizing the installation of the suction nozzle cover plate 130 and the seat body 110.

[0102] The user controls the cleaning device to start up through the touch display screen and pushes the cleaning device across the surface of the wool carpet. During this process, the head of the suction nozzle 120 abuts against the fluff on the wool carpet and causes the fluff to tilt in the direction of the movement of the head of the suction nozzle 120, thereby exposing the roots of the fluff at the suction port 121. The adsorption airflow sucks the dirt, dust, or debris located at the roots of the fluff into the adsorption channel 102 and enters the dust collection box through the adsorption channel 102. At the same time, the rotary brush 160 located downstream of the suction nozzle 120 continuously pats the fluff on the wool carpet during rotation, raising the dust attached to the fluff. During the process of the user pushing and pulling the cleaning device back and forth, the raised dust is sucked into the initial cavity through the suction port 121 and the rotary brush port 115 and reaches the dust collection box through the adsorption channel 102.

[0103] When cleaning the solid dirt on the wool carpet, the user controls the cleaning water in the water tank to flow to the nozzle 122 or the water spraying plate 123 through the touch display screen. The cleaning water is sprayed onto the solid dirt. During this process, as the user pushes and pulls the cleaning device back and forth, the rotary brush 160 continuously scrubs and pats the solid dirt, accelerating the dissolution of the solid dirt. The dissolved sewage follows the adsorption airflow into the suction port 121 and enters the dust collection box after passing through the adsorption channel 102.

[0104] Application Scenario 2:

[0105] When the user needs to clean the nozzle cover 130 after the cleaning is completed, the user controls the demagnetization of the second magnetic component that locks the nozzle cover 130 to the base 110 through the touch display screen. At this time, the nozzle cover 130 is unlocked from the base 110. Move the nozzle cover 130 so that the first positioning member 151 rotates or moves along the second positioning member 152 to separate the nozzle cover 130 from the base 110. At this time, the nozzle cover 130 can be cleaned, and a brush or the like is used to clean the suction port 121 through the front end opening 112 of the receiving cavity 111. After the cleaning is completed, align the first positioning member 151 on the nozzle cover 130 with the second positioning member 152, and move the nozzle cover 130 so that the first positioning member 151 rotates around the second positioning member 152 or the first positioning member 151 moves along the second positioning member 152 to align the nozzle cover 130 with the base 110. At this time, the user controls the second magnetic component to be energized and magnetized through the touch display screen, thus realizing the locking between the nozzle cover 130 and the base 110.

[0106] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A cleaning device, characterized in that, it includes: a device body and a base assembly provided at the bottom end of the device body, and a suction mechanism is provided on one of the device body and the base assembly; The base assembly includes: a seat body, a suction nozzle located at the bottom end of the front side of the seat body, and a suction nozzle cover plate that abuts against the suction nozzle and is movably provided on the seat body; The suction nozzle has a suction port, the suction nozzle cover plate has a cover plate channel communicated with the suction port, and the cover plate channel is communicated with the suction mechanism through an adsorption channel.

2. The cleaning device according to claim 1, characterized in that, the suction nozzle cover plate is detachably connected to the seat body through a latch assembly; Both sides of the upper end of the suction nozzle cover plate abutting against the seat body are provided with the latch assembly.

3. The cleaning device according to claim 2, characterized in that, The latch assembly includes: a matching lock pin, a lock port and a reset member connected to the lock pin; The reset member and the lock pin are located on one of the seat body and the suction nozzle cover plate, and the lock port is located on the other; The lock pin can move within the range where the reset member can be reset to unlock the suction nozzle cover plate from the seat body, and the lock port is located on the path of the reset of the lock pin to lock the suction nozzle cover plate to the seat body.

4. The cleaning device according to claim 3, characterized in that, A guiding surface is provided at the mating portion of the lock pin and the lock port to guide the lock pin into the lock port.

5. The cleaning device according to claim 2, characterized in that, The latch assembly includes: a first magnetic member and a second magnetic member that cooperates with the first magnetic member; The first magnetic member is provided on the suction nozzle cover plate, the second magnetic member is provided on the seat body, and the second magnetic member and the first magnetic member can be attracted or separated to lock or unlock the suction nozzle cover plate to the seat body.

6. The cleaning device according to claim 2, characterized in that, At least one set of pre-positioning components that cooperate with each other are provided on the suction nozzle cover plate and the seat body to limit the position of the suction nozzle cover plate installed on the seat body and guide the latch assembly between the suction nozzle cover plate and the seat body to be aligned.

7. The cleaning device according to claim 6, characterized in that, The pre-positioning component includes a matching first positioning member and a second positioning member. The first positioning member is provided on the suction nozzle cover plate, and the second positioning member is provided on the seat body or the suction nozzle. The first positioning member can rotate around the second positioning member or the first positioning member can move along the second positioning member.

8. The cleaning device according to claim 1, characterized in that, The suction nozzle cover plate has a longitudinal limiting structure at the abutting portion with the suction nozzle to limit the position of the suction nozzle cover plate in the vertical direction.

9. The cleaning device according to claim 8, characterized in that, The limiting structure includes: a limiting groove and a hook that cooperates with the limiting groove; The hook is detachably clamped in the limiting groove; The limiting groove is located on one of the suction nozzle or the suction nozzle cover plate, and the hook is located on the other.

10. The cleaning device according to claim 1, characterized in that, a first seal is provided at the contact portion between the suction nozzle cover plate and the suction nozzle.

11. The cleaning device according to claim 10, characterized in that, the suction nozzle cover plate includes: a cover plate body and a suction nozzle flap that can be arranged on the cover plate body; the suction nozzle flap and the cover plate body enclose the cover plate channel; the bottom end of the suction nozzle flap is rotatably arranged at the lower end of the cover plate body to open or close the cover plate channel; the bottom end of the cover plate body has a communication port communicating with the cover plate channel, the communication port communicates with the suction port, and the first seal is arranged around the circumference of the communication port.

12. The cleaning device according to any one of claims 1 to 11, characterized in that, a second seal is provided at the contact portion between the suction nozzle cover plate and the seat body, and the second seal is arranged on one of the suction nozzle cover plate and the seat body.

13. The cleaning device according to any one of claims 1 to 11, characterized in that, at least one nozzle is provided on the suction nozzle, a clean water tank for loading clean water is provided on the seat body or the device body, the clean water tank is communicated with the nozzle through a pipeline, and the nozzle is located in front of the suction port.

14. The cleaning device according to claim 13, characterized in that, at least one water spraying plate is further provided on the suction nozzle, the water spraying plate is communicated with the pipeline, and the water spraying plate is located behind the suction port.

15. The cleaning device according to claim 14, characterized in that, a switching valve is further provided on the seat body or the device body, the switching valve is arranged on the pipeline and located on the path of the cleaning water flow, and the switching valve can control the cleaning water to flow to the nozzle or the water spraying plate.

16. The cleaning device according to any one of claims 1 to 11, characterized in that, the seat body further includes: a switching plate, the seat body has a receiving cavity with a bottom end and a front side opening, a first adsorption port is provided on the cavity wall of the seat body above the receiving cavity, a second adsorption port is provided on the cavity wall of the seat body away from the opening of the receiving cavity, both the first adsorption port and the second adsorption port are communicated with the suction mechanism through an adsorption channel on the seat body, the switching plate is arranged in the adsorption channel and located on the path of the adsorption air flow, and the switching plate can move to switch the communication between the first adsorption port and the suction mechanism or the communication between the second adsorption port and the suction mechanism.

17. A base assembly, characterized in that, including: a seat body, a suction nozzle located at the front bottom end of the seat body, and a suction nozzle cover plate that abuts against the suction nozzle and is movably arranged on the seat body; the suction nozzle has a suction port, the suction nozzle cover plate has a cover plate channel communicated with the suction port, and the cover plate channel is communicated with the suction mechanism through an adsorption channel.

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