Surface cleaning device

Abstract

The application discloses a surface cleaning device, comprising a cleaning base, a wet cleaning roller rotatably arranged on the cleaning base, a dry wiping roller rotatably arranged on the cleaning base and spaced apart from the wet cleaning roller, a liquid supply system for loading cleaning liquid to the wet cleaning roller, and a dryer configured to heat the dry wiping roller; wherein the surface cleaning device is configured to clean a surface to be cleaned with the wet cleaning roller and the dry wiping roller in the same working process; and in the same working process, the wet cleaning roller is driven to rotate at a first angular velocity, and the dry wiping roller is driven to rotate at a second angular velocity greater than the first angular velocity. The dry wiping roller of the application has a higher rotation frequency relative to the wet cleaning roller, and through multiple contacts with the surface to be cleaned, it can completely remove the moisture on the surface to be cleaned.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of surface cleaning apparatuses. BACKGROUND

[0002] Surface cleaning apparatuses using cleaning liquid, such as water, to perform cleaning operation have been widely used in daily life. For example, wet floor cleaning apparatuses capable of using water or water / cleaner mixture to scrub the floor, these wet floor cleaning apparatuses are all equipped with a recovery container to recover used cleaning liquid, the used cleaning liquid which has become dirty liquid and entrains floor debris can be recovered into the recovery container by means of a suction motor or other devices; in the process of recovering the dirty liquid and debris, some residual water will often be left on the cleaned floor; in order to avoid the residual water being stepped on by the user and causing secondary pollution, the user has to wait for a period of time before entering the space where the floor is located, which will bring trouble to the user.

[0003] In order to reduce the amount of water left on the floor, some wet floor cleaning apparatuses only allow very low flow of cleaning liquid to flow onto the floor in a unit of time, which can avoid too much water left on the cleaned floor, but low flow will also mean that the amount of dirty liquid entraining debris is reduced, which may weaken the ability of the wet floor cleaning apparatus to clean the floor; some wet floor cleaning machines are equipped with a set of hot air system on the apparatus, which blows dry the floor by using hot air while using water or water / cleaner mixture to scrub the floor; but since the time for wiping the floor is very short, even if the hot air system is controlled according to the maximum working power of the wet floor cleaning apparatus, it is very difficult to dry the floor in such a short time, and due to the use of the hot air system, the working noise of the wet floor cleaning apparatus is extremely large. Therefore, in the wet floor cleaning apparatuses of the prior art, various configurations still cannot well solve the problem of water residue on the floor. SUMMARY

[0004] In order to solve the problem that the surface to be cleaned will have water residue after cleaning in the prior art, the purpose of the present application is to provide a surface cleaning apparatus which can effectively remove the water residue on the surface to be cleaned during the cleaning process.

[0005] To achieve the above object, the present application provides a surface cleaning apparatus, comprising a cleaning base capable of moving on a surface to be cleaned, a wet cleaning roller rotatably arranged on the cleaning base, a dry wiping roller rotatably arranged on the cleaning base and spaced apart from the wet cleaning roller, a liquid supply system for loading a cleaning liquid to the wet cleaning roller, and a dryer configured to heat the dry wiping roller; wherein the surface cleaning apparatus is configured to clean the surface to be cleaned with the wet cleaning roller and the dry wiping roller in a same working process; and in the same working process, the wet cleaning roller is driven to rotate at a first angular velocity, and the dry wiping roller is driven to rotate at a second angular velocity greater than the first angular velocity.

[0006] In some preferred embodiments, the apparatus comprises a first motor driving the wet cleaning roller to rotate and a second motor driving the dry wiping roller to rotate.

[0007] In some preferred embodiments, the second angular velocity is at least 2 times the first angular velocity.

[0008] In some preferred embodiments, the first angular velocity is greater than or equal to 6.6π rad / s and the second angular velocity is greater than or equal to 33π rad / s.

[0009] In some preferred embodiments, the wet cleaning roller comprises a first roller body and a first cleaning element covering an outer peripheral surface of the first roller body and capable of being infiltrated by the cleaning liquid, and the dry wiping roller comprises a second roller body and a second cleaning element covering an outer peripheral surface of the second roller body and capable of absorbing the cleaning liquid.

[0010] In some preferred embodiments, the first roller body has a roller diameter less than or equal to 50-60 mm, and the second roller body has a roller diameter less than or equal to 30-50 mm.

[0011] In some preferred embodiments, the first cleaning element and the second cleaning element are both fiber nap, and the nap length of the first cleaning element is less than or equal to the nap length of the second cleaning element.

[0012] In some preferred embodiments, the nap length of the first cleaning element is 5-10 mm, and the nap length of the second cleaning element is 5-15 mm.

[0013] In some preferred embodiments, the dryer comprises a heating body capable of converting electrical energy into heat, and a heat conduction component in thermal conduction connection with the heating body, at least a part of the heat conduction component being circumferentially wrapped around the dry wiping roller.

[0014] In some preferred embodiments, the heat conducting member has a heat surface extending circumferentially around a rotation axis of the dry wiping roller, the dry wiping roller contacts the arc surface.

[0015] In some preferred embodiments, the cleaning base comprises a base body having a front portion with a front agitating chamber and a rear portion with a rear agitating chamber, the wet cleaning roller is arranged at the front agitating chamber, the dry wiping roller and the dryer are arranged at the rear agitating chamber.

[0016] In some preferred embodiments, further comprising a suction motor in fluid communication with the front agitating chamber and a recovery container arranged on a fluid path between the suction motor and the front agitating chamber.

[0017] In some preferred embodiments, the suction motor is in fluid communication with the rear agitating chamber.

[0018] In some preferred embodiments, the device further comprises: a rechargeable battery pack, the heat generating body is configured to receive electric energy and emit heat; the rechargeable battery pack is electrically connected to the heat generating body to provide electric energy for heat generation of the heat generating body.

[0019] In some preferred embodiments, the surface cleaning device is configured as a stand type surface cleaning device or a surface cleaning device robot capable of autonomously driving and steering on a surface to be cleaned.

[0020] The dry wiping roller of the present application has a higher rotation frequency than the wet cleaning roller, and it can thoroughly remove the water on the surface to be cleaned through multiple contacts with the surface to be cleaned. In addition, the dryer can make the dry wiping roller maintain a relatively dry state as much as possible, so as to better absorb the water on the surface to be cleaned. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 A perspective view of a surface cleaning device according to an embodiment of the present application;

[0022] Figure 2 A perspective view of a cleaning base according to an embodiment of the present application from a bottom view;

[0023] Figure 3 A bottom view of the cleaning base according to Figure 2

[0024] A cross-sectional view of the cleaning base according to Figure 4 Figure 2 A cross-sectional view of the cleaning base according to

[0025] Figure 5 A​Figure 4 enlarged view of the front portion of the cleaning base;

[0026] Figure 6 enlarged view of the rear portion of the cleaning base; Figure 4 enlarged view of the rear portion of the cleaning base;

[0027] Figure 7 enlarged view of the rear portion of the cleaning base; Figure 6 schematic view of the cleaning base with the dry wiping roller removed;

[0028] Figure 8 schematic view of the cleaning base with the dry wiping roller removed;

[0029] wherein: 10, surface cleaning apparatus; 1, cleaning base; 2, handle body portion; 3, swivel joint; 11, base body; 111, front portion; 112, rear portion; 113, top portion; 114, bottom portion; 12, front agitator chamber; 13, rear agitator chamber; 14, suction nozzle; 15, wet cleaning roller; 16, liquid dispenser; 161, squeegee member; 18, dry wiping roller; 19, dryer; 1111, front cover plate; 121, first lower opening; 122, front opening; 151, first roller body; 152, first cleaning element; 1121, rear cover plate; 131, second lower opening; 181, second roller body; 182, second cleaning element; 11211, top wall; 11212, rear side wall; 11213, arcuate segment; 11214, bottom edge; 11215, recess; 1141, front end portion; 1142, rear end portion; 191, heating element; 192, heat conducting member; 1921, hot surface; 193, barrier; 21, handle; 22, body; 211, operating portion; 32, water supply tank; 41, recovery tank; 42, suction motor; 51, rechargeable battery pack; 8, cleaning base; 82, front agitator chamber; 83, rear agitator chamber; 85, wet cleaning roller; 88, dry wiping roller; 89, dryer; 87, suction passage; 871, narrow passage. DETAILED DESCRIPTION

[0030] The surface cleaning apparatus of the present application is configured to contact a surface to be cleaned with a cleaning base; the surface to be cleaned is typically a hard floor surface, tile surface, etc., the cleaning base brushes the floor surface with a cleaning liquid and simultaneously thoroughly recovers used cleaning liquid and debris present on the surface to be cleaned. The surface cleaning apparatus solution can be implemented in various types of cleaning apparatuses.

[0031] The terms "upper" and "lower" orientation mentioned below are relative to the orientation of the surface cleaning base on the surface to be cleaned, and the terms "front" and "rear" orientation are relative to the direction in which the operator stands on the surface to be cleaned and pushes the surface cleaning apparatus (i.e., the pushing direction from rear to front).

[0032] Figure 1 A surface cleaning apparatus 10 is shown, which is a stand-up machine including a cleaning base 1 and a handle body portion 2 located on the upper side of the cleaning base 1. The lower part of the handle body portion 2 is pivotally connected to the cleaning base 1 by a swivel joint 3, and the handle body portion 2 has a storage position upright relative to the cleaning base 1 for storage and a working position inclined backward relative to the cleaning base 1 for a user to push the surface cleaning apparatus 10.

[0033] As shown in Figures 1-3 The cleaning base 1 has a seat body 11 including a front part 111, a rear part 112, a top part 113 and a bottom part 114.

[0034] As shown in Figures 2-7 The front part 111 is provided with a front agitating chamber 12, and the rear part 112 is provided with a rear agitating chamber 13. A suction nozzle 14 is arranged adjacent to the front agitating chamber 12. The front agitating chamber 12 is provided with a wet cleaning roller 15 rotatable driven, a liquid distributor 16 partially extending into the front agitating chamber 12 and a squeegee member 161. The rear agitating chamber 13 is provided with a dry wiping roller 18 and a dryer 19. In this way, the wet cleaning roller 15 and the dry wiping roller 18 are spaced apart in the front-rear direction, and the cleaning base 1 can be supported on a surface to be cleaned by the wet cleaning roller 15 and the dry wiping roller 18, i.e. the cleaning base 1 can simultaneously clean the surface to be cleaned by the wet cleaning roller 15 and the dry wiping roller 18 in the same working time.

[0035] The front part 111 includes a front cover plate 1111 covering the upper side of the wet cleaning roller 15. The lower part of the front agitating chamber 12 has a first lower opening 121, and the front part of the front agitating chamber 12 has a front opening 122, which are mutually through. The lower part and the front part of the wet cleaning roller 15 are exposed from the first lower opening 121 and the front opening 122, respectively, to contact the surface to be cleaned.

[0036] The wet cleaning roller 15 includes a first roller body 151 defining a rotation axis X1 extending in the horizontal direction and a first cleaning element 152 covering the outer peripheral side surface of the roller body 151, which is configured to be able to be soaked with a cleaning liquid such as water. The roller diameter D1 of the first roller body 151 is preferably 50-60 mm. In this example, the first cleaning element 152 is a fiber nap, for example, the nap length L1 of the first cleaning element 152 is 5-10 mm. In other embodiments, the first cleaning element can also be a sponge, a fabric or other types.

[0037] The cleaning base 1 is further provided with a first motor (not shown in the figure) in driving connection with the wet cleaning roller 15 to drive the wet cleaning roller 15 to rotate about the rotation axis X1.

[0038] The liquid distributor 16 is oriented towards the wet cleaning roller 15 and is configured to distribute cleaning liquid from a liquid supply system (not shown in the figure) onto the wet cleaning roller 15.

[0039] The suction nozzle 14 is oriented towards the front agitation chamber 12. The suction nozzle 14 is in fluid communication with a suction channel 17; the suction channel 17 can be partially defined by the base body 11 or completely defined by a duct arranged within the base body 11. The suction channel 17 guides the fluids, such as dirty liquid, debris and air, sucked through the suction nozzle 14.

[0040] The squeegee member 161 is located within the front agitation chamber 12 closer to the suction nozzle 14 than the liquid distributor 16; in terms of the direction of rotation of the wet cleaning roller 15, the squeegee member 161 is located downstream of the suction nozzle 14 and the liquid distributor 16 is located downstream of the squeegee member 161. The squeegee member 161 is typically a rigid squeegee strip member which abuts the first cleaning element 152 of the wet cleaning roller 15 to remove liquid and debris from the first cleaning element 152 of the wet cleaning roller 15.

[0041] The rear portion 112 comprises a rear cover plate 1121 which circumferentially covers the outer periphery of the partial dry wiping roller 18. The lower portion of the rear agitation chamber 13 has a second lower opening 131. The lower portion of the dry wiping roller 18 is exposed from the second lower opening 131 to contact the surface to be cleaned.

[0042] The dry wiping roller 18 comprises a second roller body 181 defining a rotation axis X2 extending in the horizontal direction and a second cleaning element 182 covering the outer peripheral side surface of the roller body 181, the second cleaning element 182 being configured to absorb cleaning liquid such as water. The roller diameter D2 of the second roller body 181 is preferably 35-50 mm. In the present example, the second cleaning element 182 is preferably selected to be fiber fluff, for example the fluff length L2 of the second cleaning element 182 is 5-15 mm. In other embodiments, the second cleaning element can also be sponge, fabric or other types. In some preferred embodiments, in order to increase the liquid absorption performance, the fluff length L2 of the second cleaning element 182 is greater than the fluff length L1 of the first cleaning element 152.

[0043] The cleaning base 1 is further provided with a second motor (not shown in the figure) in driving connection with the dry wiping roller 18 to drive the dry wiping roller 18 to rotate around the rotation axis X2. The first motor and the second motor can be built-in motors built in the corresponding rollers, or can be external motors arranged outside the corresponding rollers. In other feasible embodiments, the first motor and the second motor can also be replaced by one motor, i.e., the same motor is used to simultaneously drive the dry wiping roller 18 and the wet cleaning roller 15 to rotate.

[0044] In this example, the roller diameter D2 of the second roller body 181 is preferably smaller than the roller diameter D1 of the first roller body 151. In the same working process, the wet cleaning roller 15 is driven to rotate at a first angular velocity, and the dry wiping roller 18 is driven to rotate at a second angular velocity greater than the first angular velocity, for example, the first angular velocity is greater than or equal to 6.6π radians per second, and the second angular velocity is greater than or equal to 33π radians per second. In this way, the rotation frequency of the dry wiping roller 18 is as large as possible than the rotation frequency of the wet cleaning roller 15 in the same working process, so that the dry wiping roller 18 can more frequently contact the surface to be cleaned to absorb the residual liquid on the surface to be cleaned. In some preferred embodiments, the second angular velocity can be set to be more than 2 times the first angular velocity.

[0045] The back cover plate 1121 includes a back top wall 11211 and a back side wall 11212, the back side wall 11212 defining a back portion of the back agitation chamber 13, the back side wall 11212 extending downward from a back edge of the back top wall 11211 and extending below the rotation axis X2 of the dry wiping roller 18. The lower portion of the back side wall 11212 has an arc-shaped section 11213, the bottom edge 11214 of the arc-shaped section 11213 being located below the rotation axis X2, and the inner side surface of the arc-shaped section 11213 being adjacent to the dry wiping roller 18.

[0046] The bottom 114 includes a front end portion 1141 and a back end portion 1142; the front end portion 1141 defines a back side boundary of the first lower opening 121, and the back end portion 1142 defines a front side boundary of the second lower opening 131. In this example, the front end portion 1141 and the back end portion 1142 each include a flexible scraping strip.

[0047] The dryer 19 is located in the back agitation chamber 13 and outside the dry wiping roller 18, and is configured to perform drying treatment on the second cleaning element 182 of the dry wiping roller 18. The inner side of the top wall 11211 is provided with a recess 11215, and the dryer 19 is partially received in the recess 11215.

[0048] In this example, the dryer 19 includes a heating element 191 capable of converting electrical energy into heat and a heat-conducting component 192 thermally connected to the heating element 191. The dryer 19 generates heat through the heating element 191, and then transfers the heat to the external dry wiping roller 18 via the heat-conducting component 192. The heat-conducting component 192 is preferably a metal element, and the heating element 191 is preferably embedded within the heat-conducting component 192.

[0049] The heat-conducting component 192 includes an arc-shaped hot surface 1921 that extends circumferentially around the rotation axis X2 of the dry wiping roller 18 and circumferentially covers a portion of the second cleaning element 182. In this example, the hot surface 1921 will contact the second cleaning element 182. When the heating element 191 is operating, the hot surface 1921 will continuously transfer heat to the second cleaning element 182, thereby drying the damp second cleaning element 182.

[0050] The dryer 19 is not limited to the above types. It can also be a dryer containing tubular components such as quartz tubes or carbon fiber tubes, or a dryer containing ceramic heating elements, as long as it can dry the rotating dry wiping roller 18.

[0051] To reduce heat loss at the dryer 19, a barrier 193 is provided in the rear agitation chamber 13. The barrier 193 is located between the rear end 1142 and the dryer 19; the barrier 193 contacts the dry wiping roller 18; the barrier 193 is preferably made of a rigid material. The barrier 193 can separate the dryer 19 from the outside. The structure of the barrier 193 and the arc-shaped segment 11213 of the rear sidewall 11212 can prevent the heat generated by the dryer 19 from easily dissipating.

[0052] Continue as Figures 1-2 As shown, the handle body portion 2 includes a handle 21 and a body 22 located at the top. The handle 21 is fixedly connected to the top of the body 22 and configured to be held by a user. The user can use the handle 21 to hold the surface cleaning device 10 with one hand and push the cleaning base 1 of the surface cleaning device 10 back and forth on the surface to be cleaned in a rearward tilted working position. The handle 21 is also provided with an operating part 211 that is signal-connected to a control unit (not shown) for the user to control the operation of the surface cleaning device 10. The specific form of the operating part 211 is not limited to a button, trigger, trigger device, switch, etc. In other embodiments, the operating part may also be located in other places of the surface cleaning device, such as on the top or side wall of the handle body portion below the handle. The operating part may also be a portable remote control or may be located on a handheld terminal capable of interacting with the surface cleaning device.

[0053] The machine body 22 is capable of accommodating and carrying a plurality of working components on the handle body portion 2. The plurality of working components include a water supply tank 32 capable of storing and externally providing cleaning liquid. The water supply tank 32 is preferably detachably mounted on the machine body 22 to facilitate the user to add clean water thereto.

[0054] The water supply tank 32 is in fluid communication with the liquid distributor 16 on the cleaning base 1 and forms a water supply path (not shown in the figure) for the cleaning liquid to flow through, and a selectively activated pump (not shown in the figure) is arranged on the water supply path. By controlling the pump to be turned on and off, the selective delivery of liquid to the liquid distributor 16 or the blocking of the fluid communication between the water supply tank 32 and the liquid distributor 16 can be achieved. The pump can be arranged in the machine body 22 or in the cleaning base 1. The liquid supply system composed of the water supply tank 32, the water supply path, the pump and the liquid distributor 16 can achieve on-demand liquid supply to the wet cleaning roller 15.

[0055] The working components arranged on the machine body 22 also include a recovery tank 41 capable of receiving and storing dirty liquid and debris, and a suction motor 42 arranged on the upper side of the recovery tank 41. The suction nozzle 14 in the cleaning base 1, the recovery tank 41 and the suction motor 42 are in fluid communication in sequence, the suction passage 17 is located between the suction nozzle 14 and the recovery tank 41, and the suction motor 42 is configured to be capable of driving the flow of fluid containing air from the suction nozzle 14 towards the recovery tank 41 along the recovery flow path. The recovery tank 41 is detachably mounted on the machine body 22 to facilitate the user to pour out the dirty liquid. The recovery system composed of the suction nozzle 14, the suction passage 17, the recovery tank 41 and the suction motor 42 can achieve the recovery of the dirty liquid and debris on the surface to be cleaned.

[0056] The machine body 22 is also provided with a rechargeable battery pack 51, which is electrically connected with the heating body 191 to provide electric energy for the heating of the heating body 191.

[0057] In other embodiments, the power supply device of the machine body 22 can also include a power cord capable of being electrically connected with a household electrical outlet. The heating body 191 is provided with the electric energy required for heating by the alternating current introduced by the power cord.

[0058] When the surface cleaning device 10 is in operation, the pump starts, and the cleaning liquid in the water supply tank 32 reaches the liquid distributor 16 via the liquid delivery path and is distributed by the liquid distributor 16 to the wet cleaning roller 15. The rotating wet cleaning roller 15 uses the cleaning liquid to scrub the surface to be cleaned. The suction motor 42 starts and forms a flowing airflow. The wet cleaning roller 15 carries the dirt and debris picked up from the surface to be cleaned into the front agitation chamber 13 along with the flowing airflow, and moves along the recovery flow path 43 towards the suction motor 42. This dirt and debris will finally be stored in the recovery tank. 41. Meanwhile, the rotating dry wiping roller 18 will continuously contact the surface to be cleaned by the wet cleaning roller 15, thereby absorbing the residual liquid on the surface to be cleaned by means of the second cleaning element 182. The dryer 19 starts to work, and the second cleaning elements 182 of each part will continuously move to the dryer 19 during rotation. With the help of the heating and drying effect of the dryer 19, the liquid absorbed by the second cleaning element 182 will be heated and evaporated. The second cleaning element 182 of the dry wiping roller 18 remains dry after long-term use and has excellent liquid absorption performance.

[0059] like Figure 8 As shown, the cleaning base 8 in this embodiment has a similar structure to the cleaning base 1 described above. It also has a front agitation chamber 82 and a rear agitation chamber 83, and a wet cleaning roller 85 and a dry wiping roller 88 are respectively arranged in the two chambers. The dryer 89 is located in the rear agitation chamber 83. The difference between the cleaning base 8 and the cleaning base 1 is that the rear agitation chamber 83 is also in fluid communication with the suction channel 87 through a narrow channel 871, that is, the fluid in the rear agitation chamber 83 can also be sucked into the suction channel 87. In order not to affect the suction effect of the nozzle 84, the cross-sectional area of ​​the narrow channel 871 is as small as possible. For example, the cross-sectional area of ​​the narrowest part of the narrow channel 871 is less than or equal to 1 / 2 of the cross-sectional area of ​​the narrowest part of the channel between the front agitation chamber 82 and the suction channel 8.

[0060] The surface cleaning equipment solution of this application can be used not only in the above-mentioned vertical machines, but also in surface cleaning robots that can autonomously move and turn on the surface to be cleaned; or in tank-type surface cleaning equipment.

[0061] The foregoing has shown and described the basic principles, main features, and advantages of this application. Those skilled in the art should understand that this application is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this application. Various changes and modifications can be made without departing from the spirit and scope of this application. The scope of protection claimed by this application is defined by the appended claims, specification, and their equivalents.

Claims

1. A surface cleaning device, characterized in that, The device includes a cleaning base movable on a surface to be cleaned, a wet cleaning roller rotatably arranged on the cleaning base, a dry wiping roller rotatably arranged on the cleaning base and spaced apart from the wet cleaning roller, a liquid supply system for loading cleaning liquid onto the wet cleaning roller, and a dryer configured to heat the dry wiping roller. The dryer includes a heating element capable of converting electrical energy into heat and a heat-conducting component thermally connected to the heating element, at least partially covering the periphery of the dry wiping roller circumferentially. The surface cleaning device is configured to clean the surface to be cleaned using both the wet cleaning roller and the dry wiping roller in the same working process. In the same working process, the wet cleaning roller is driven to rotate at a first angular velocity, and the dry wiping roller is driven to rotate at a second angular velocity greater than the first angular velocity.

2. The surface cleaning equipment according to claim 1, characterized in that, The device includes a first motor that drives the wet cleaning roller to rotate and a second motor that drives the dry wiping roller to rotate.

3. The surface cleaning equipment according to claim 1, characterized in that, The second angular velocity is at least twice the first angular velocity.

4. The surface cleaning equipment according to claim 1, characterized in that, The first angular velocity is greater than or equal to 6.6π radians per second and the second angular velocity is greater than or equal to 33π radians per second.

5. The surface cleaning equipment according to claim 1, characterized in that, The wet cleaning roller includes a first roller body and a first cleaning element that covers the outer peripheral surface of the first roller body and can be wetted by cleaning liquid. The dry wiping roller includes a second roller body and a second cleaning element that covers the outer peripheral surface of the second roller body and can absorb the cleaning liquid.

6. The surface cleaning equipment according to claim 5, characterized in that, The first roller has a diameter of 50-60 mm or less, and the second roller has a diameter of 30-50 mm or less.

7. The surface cleaning equipment according to claim 5, characterized in that, Both the first cleaning element and the second cleaning element are fiber fibers, and the fiber length of the first cleaning element is less than or equal to the fiber length of the second cleaning element.

8. The surface cleaning equipment according to claim 7, characterized in that, The first cleaning element has a bristle length of 5-10 mm, and the second cleaning element has a bristle length of 5-15 mm.

9. The surface cleaning equipment according to claim 1, characterized in that, The heat-conducting component has a hot surface that extends circumferentially around the rotation axis of the dry wiping roller, and the dry wiping roller contacts the hot surface.

10. The surface cleaning equipment according to claim 1, characterized in that, The cleaning base includes a base body having a front part and a rear part, the front part having a front agitation chamber and the rear part having a rear agitation chamber, the wet cleaning roller being arranged in the front agitation chamber, and the dry wiping roller and the dryer being arranged in the rear agitation chamber.

11. The surface cleaning equipment according to claim 10, characterized in that, It also includes a suction motor and a recovery container, wherein the suction motor is in fluid communication with the front agitation chamber, and the recovery container is arranged in the fluid path between the suction motor and the front agitation chamber.

12. The surface cleaning equipment according to claim 11, characterized in that, The suction motor is in fluid communication with the rear agitation chamber.

13. The surface cleaning equipment according to claim 1, characterized in that, Also includes: A rechargeable battery pack, wherein the heating element is configured to receive electrical energy and dissipate heat; the rechargeable battery pack is electrically connected to the heating element to provide electrical energy for the heating element to generate heat.

14. The surface cleaning equipment according to claim 1, characterized in that, The surface cleaning equipment is constructed as a vertical surface cleaning device or a surface cleaning robot capable of autonomously moving and turning on the surface to be cleaned.

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