CN115486759A - Surface cleaning apparatus - Google Patents

Abstract

The application relates to a cleaning device, comprising a dirty liquid recovery container with a recovery chamber inside and a dirty liquid pipeline communicated with the recovery chamber in a fluid mode, wherein the cleaning device further comprises a flow regulating device used for regulating the flow of the fluid flowing through the dirty liquid pipeline, the dirty liquid pipeline comprises a hose, the flow regulating device comprises a hose pressing mechanism, and the hose pressing mechanism is arranged on the outer side of the hose and can generate radial extrusion force on the hose; the radially compressive force is capable of radially collapsing and holding at least a portion of the hose in a flattened condition to intercept a fluid passageway within the hose.

Description

Surface cleaning apparatus

Technical Field

The present application relates to the field of household cleaning devices, and more particularly to a surface cleaning device capable of wet cleaning a surface to be cleaned with a cleaning fluid and recovering the used cleaning fluid.

Background

Surface cleaning apparatuses that use cleaning fluid for cleaning operations have been widely used in everyday life, such as surface cleaning machines that can clean a floor, self-moving floor cleaning robots, and the like. These surface cleaning apparatuses each carry thereon a dirty liquid recovery tank that recovers used cleaning fluid, into which the cleaning fluid that has been used and has become dirty liquid can be input through a dirty liquid pipe, and the dirty liquid in the dirty liquid recovery tank can be discharged to the outside of the apparatus through another dirty liquid pipe. In the use process of surface cleaning equipment, often need to manage and control the fluid flow in these dirty liquid pipelines, for example utilize flow control device to adjust the fluid flow in dirty liquid pipeline or directly cut off the fluid flow in dirty liquid pipeline, conventional flow control device can be difficult to avoid contacting with dirty liquid when working, often because polluted by dirty liquid and malfunctioning, has certain drawback when using.

Disclosure of Invention

In order to solve the above technical problem, it is an object of the present application to provide a surface cleaning apparatus on which a flow regulating device is reliable in use.

In order to achieve the above purpose, the present application provides the following technical solutions: a surface cleaning apparatus comprising a dirty liquid recovery tank having a recovery chamber therein and a dirty liquid conduit in fluid communication with the recovery chamber, the surface cleaning apparatus further comprising a flow control device for controlling the flow of fluid through the dirty liquid conduit, the dirty liquid conduit comprising a hose, the flow control device comprising a hose compression mechanism, the hose compression mechanism being arranged outside the hose and capable of producing a radially compressive force on the hose; the radially compressive force is capable of radially collapsing and holding at least a portion of the hose in a collapsed condition to intercept a fluid passageway within the hose.

In one possible implementation, the tube compression mechanism includes a fixed wall located on one side of the hose and disposed adjacent to an outer sidewall of the hose, a knife blade located on the other side of the hose, and a knife blade power source that urges the knife blade radially toward the fixed wall and away from the fixed wall.

In a specific arrangement scheme of the knife switch, the knife switch comprises a pair of convex strips which are distributed along the axial direction of the hose and are parallel to each other; when the hose pressing mechanism generates radial extrusion force on the hose, the pair of raised strips is abutted with the outer side wall of the hose.

In one possible implementation, the tube pressing mechanism includes a pair of clamp arms respectively located at two opposite sides of the flexible tube and a clamp arm power source for driving the clamp arms to open and close.

In one possible implementation, the surface cleaning apparatus includes a base and an upright body with a lower portion rotatably connected to the base, a handle portion is provided at an upper portion of the upright body, the dirty liquid recovery container is detachably disposed on the upright body, and the hose pressing mechanism are both disposed on the upright body.

In one possible implementation, the dirty liquid recovery tank has a bottom end and a top end opposite the bottom end and includes a bottom wall at the bottom end and a side wall extending from the bottom wall toward the top end.

In one possible implementation, the dirty liquid recovery tank includes a removable lid assembly located at the top end, the lid assembly including a lid body for sealing engagement with the side wall and a filter removably supported on the lid body, the filter forming an air outlet from the recovery chamber to the vacuum motor, the hose and the hose hold down mechanism being located on an upper side of the dirty liquid recovery tank.

In one possible implementation, the surface cleaning apparatus comprises a suction opening and a vacuum motor, the surface cleaning apparatus establishing a vacuum path from the suction opening to the dirty liquid recovery tank and to the vacuum motor; when the vacuum motor is started, the hose pressing mechanism radially crushes the hose and keeps the hose in a flat state.

In one possible implementation, the surface cleaning apparatus is provided with a brush roll, a fluid supply container and a fluid dispenser, the brush roll and the fluid dispenser being disposed on the base, the fluid dispenser being configured to supply fluid from the fluid supply container to the brush roll, the fluid supply container being disposed on the upright body.

In one possible implementation, the surface cleaning apparatus has a dirty liquid outlet port for fluid communication with an external device, the dirty liquid conduit being located between the recovery chamber and the liquid outlet port.

Compared with the prior art, the surface cleaning equipment provided by the application has the advantages that each part of the flow regulating device can not be in direct contact with the dirty liquid in the dirty liquid pipeline, so that the pollution of the dirty liquid can be effectively avoided, and the stable working state can be kept.

Drawings

Fig. 1 is a schematic structural diagram of a wet surface cleaning apparatus according to an embodiment of the present disclosure;

FIG. 2 is a schematic structural diagram of a cleaning base according to an embodiment of the present disclosure;

FIG. 3 is a schematic longitudinal cross-sectional view of the cleaning base of FIG. 3;

FIG. 4 is a schematic longitudinal cross-sectional view of an upright fuselage provided by an embodiment of the present application;

FIG. 5 is a schematic view of a fluid delivery system provided in an embodiment of the present application;

FIG. 6 is a schematic diagram of a fluid supply path according to an embodiment of the present disclosure;

FIG. 7 is a schematic view of a dirty liquid recovery system according to an embodiment of the present disclosure;

FIG. 8 is a schematic diagram of a vacuum path provided by an embodiment of the present application;

FIG. 9 is a schematic structural diagram of a dirty liquid recycling container according to an embodiment of the present disclosure;

FIG. 10 is a schematic view of the effluent collection container of FIG. 9 taken along the axis of the second pipe and illustrating the second pipe in connection with a downstream effluent line;

FIG. 11 is a schematic diagram of a flow control device according to an embodiment of the present application; wherein the hose is in a relaxed state;

FIG. 12 is a schematic view of the hose of FIG. 11 being transformed to a collapsed condition;

FIG. 13 is a schematic view of a hose according to an embodiment of the present application in a relaxed state in relation to a knife and a stationary wall;

FIG. 14 is a schematic view of a hose according to an embodiment of the present application in a collapsed position in relation to a knife and a fixed wall;

FIG. 15 is a view of a hose according to another embodiment of the present application in a relaxed position with a pair of retaining arms;

FIG. 16 is a view of a hose according to another embodiment of the present application in a flattened condition in relation to a pair of retaining arms;

fig. 17 is a schematic diagram illustrating the connection relationship of various components in the surface cleaning apparatus according to the embodiment of the present application.

Wherein: 100. a surface cleaning device;

1. cleaning the base; 2. a vertical machine body; 11. a base body; 12. an upper cover; 13. a roll cavity; 14. a brush roll; 15. a brush roll motor; 111. a front portion; 112. a rear portion; 113. a first side portion; 114. a second side portion; 16. a moving wheel; 131. a suction port;

17. a first wiper strip; 18. a second wiper strip; 19. a fluid dispenser; 110. a third scraping bar;

21. an upright portion; 22. a handle portion; 221. a handle; 222. an operation panel; 223. a rod body; 211. an upright housing; 212. a lower connecting end; 23. a display; 24. a battery pack; 25. a fluid supply container;

30. a fluid supply path; 31. a fluid channel; 32. a pump;

26. a dirty liquid recovery container; 27. A vacuum motor; 261. a recovery chamber; 262. a liquid level detection mechanism; 40. a vacuum path; 41. a dirty liquid input pipeline;

2601. a bottom end portion; 2602. a tip portion; 263. a bottom wall; 264. a side wall; 265. a cap assembly; 2651. a cover body; 2652. a filter; 266. a first pipe body; 267. a second tube body; 2671. a tube port; 28. a controller;

2112. a dirty liquid output interface; 2116. a charging interface;

291. a dirty liquid output pipeline; 292. a flow regulating device; 293. a charging management circuit; 2912. a dirty liquid pipeline.

2913. A hose; 2921. a hose hold-down mechanism; 2915. a fixed wall; 2914. a knife switch; 29141. a convex strip; 3913. a hose; 3914. a knife switch.

Detailed Description

In order to explain the technical content, the structural features, the achieved objects and the effects of the present application in detail, the technical solutions in the embodiments of the present application will be described below with reference to the accompanying drawings in the embodiments of the present application.

Fig. 1 shows an exemplary wet surface cleaning machine 100 comprising a cleaning base 1 capable of moving over a surface to be cleaned and an upright body 2 having a lower portion rotatably connected to the cleaning base 1. The wet surface cleaning machine 100 also establishes a fluid delivery system between the cleaning base 1 and the upright body 2 capable of delivering cleaning liquid at the cleaning base 1 and a dirty liquid recovery system for recovering dirty liquid from the surface to be cleaned.

The directions herein are relative to a perspective when an operator stands on the rear side of the wet surface cleaning machine 100 and pushes the wet surface cleaning machine 100 forward.

As shown in fig. 2 to 3, the cleaning base 1 includes a base body 11 forming a main skeleton portion of the cleaning base 1, an upper cover 12, a roller chamber 13 located at a front portion of the cleaning base 1, a brush roller 14 disposed in the roller chamber 13, and a brush roller motor 15 driving the brush roller 14 to rotate. The base 11 has a front portion 111, a rear portion 112, and a first side portion 113 and a second side portion 114 disposed opposite to each other. A pair of moving wheels 16 is also rotatably connected to the rear portion 112 of the housing 11, the moving wheels 16 being used to effect movement of the cleaning base 1 over the surface to be cleaned. The upper cover 12 is detachably coupled to the front portion 111 of the housing 11. The front portion 111, the first side portion 113, the second side portion 114 and the cover 12 together define a roller chamber 13, the lower portion of the roller chamber 13 having a suction opening 131 facing the surface to be cleaned. The brush roller 14 is covered with fiber bristles made of a material wettable by liquid, and the lower portion of the brush roller 14 protrudes from the suction port 131 so that the fiber bristles contact the surface to be cleaned.

A first scraping bar 17 is fixedly connected to the bottom of the housing 11, the first scraping bar 17 defining a rear edge of the suction port 131, the first scraping bar 17 being disposed to be inclined downward and forward such that a front end thereof contacts the ground, the first scraping bar 17 being typically a flexible scraping bar. The front part 111 of the seat body 11 is also provided with a second scraping strip 18 and a fluid distributor 19; the second wiper strip 18 is located upstream of the fluid distributor 19 with respect to the direction of rotation of the brush roller 14; a second scraper bar 18 extends into the roller chamber 13 and contacts the brush roller 14, the second scraper bar 18 being used to scrape off dirt carried by the brush roller 14 during rotation of the brush roller 14, the second scraper bar 18 being typically a rigid scraper bar; fluid distributor 19 has a plurality of openings that may extend in a direction parallel to the axis of brushroll 14, and fluid distributor 19 is capable of delivering cleaning liquid to brushroll 14. A third scraping strip 110 is also arranged on the inner wall surface of the upper cover 12; the third wiper strip 110 is located downstream of the fluid distributor 19 with respect to the direction of rotation of the brush roller 14; the third wiper strip 110 also projects into the roller chamber 13 and contacts the brush roller 14, the main function of the third wiper strip 19 being to wipe off the cleaning liquid delivered by the fluid distributor 19 onto the brush roller 14 and to prevent excess liquid delivered by the fluid distributor 19 and not absorbed by the brush roller 14 from flowing or splashing directly from the gap between the upper cover 12 and the upper part of the brush roller 14 onto the surface to be cleaned.

Referring to fig. 1 and 4, the upright body 2 includes a body portion 21 extending in a longitudinal direction and a handle portion 22 fixedly connected to the body portion 21 and located at an upper side of the body portion 21. The handle portion 22 includes a handle 221 to be held by a user, an operation panel 222 provided on the handle 221, and a lever 223 supporting the handle 221. The lever body 223 is fixedly connected at both ends thereof to the handle 221 and the body 21, respectively, and the form of the operation panel 222 is not limited to a push button, a slide button, a trigger, and the like.

The body portion 21 includes an upright case 211 and a lower connection end 212 at a lower end of the upright case 211. The upright housing 211 constitutes an outer skeleton of the body portion 21 and can accommodate several components, and the lower connection end 212 is rotatably hinged to the rear of the cleaning base 1 so that the upright body 2 can rotate relative to the cleaning base 1. A first display 23 is arranged on an upper portion of the upright housing 21, the first display 23 being configured to display current operating conditions and operating parameters of the surface cleaning machine 100; such as the residual capacity of the battery, the working state of the brush roller, etc.

Also mounted within the upright housing 21 is a multi-rechargeable battery pack 24, the battery pack 24 being capable of providing electrical power to various power consuming components of the wet surface cleaning machine 100.

Referring to fig. 5, the fluid delivery system is mainly composed of a fluid supply container 25 for storing and supplying the cleaning liquid to the outside of the brush roller 14, a fluid distributor 19, a fluid passage 31 in fluid communication with the fluid supply container 25 and the fluid distributor 19, and a pump 32 disposed in the fluid passage and supplying a flow power to the cleaning liquid.

The pump 32 may be disposed either on the housing 11 of the cleaning base 1 or within the upright housing 211 of the upright housing 2.

Referring to fig. 1 and 4, a fluid supply container 25 is removably attached to upright housing 211 to facilitate manual addition of cleaning liquid thereto by an operator. The cleaning liquid is not limited to clear water, disinfectant water added with a disinfectant, and a detergent solution added with a detergent.

As shown in fig. 6, a fluid supply path 30 is established on the wet surface cleaning machine 100 from the fluid supply tank 25, to the pump 32, and then to the fluid dispenser 19. By means of the fluid supply path 30, cleaning liquid can be constantly supplied to the brush roll 14 when the wet surface cleaning machine 100 is in operation.

The fluid delivery system is also provided with the necessary level sensing mechanism (not shown) that can determine in real time whether the cleaning liquid in the fluid supply vessel 25 is depleted or full.

Referring to fig. 7, the dirty liquid recovery system is mainly composed of a dirty liquid recovery tank 26 for receiving and storing dirty liquid, a dirty liquid input line 41 for achieving fluid communication between the dirty liquid recovery tank 26 and the suction port 131, and a vacuum motor 27 for providing negative pressure. The dirty liquid inlet line 41 will define at least part of the dirty liquid inlet path.

Referring to fig. 1 and 4, the waste recovery tank 26 has a recovery chamber 261 therein and is configured to be removably attached to the upright housing 211 for easy removal for manual cleaning by an operator. A vacuum motor 27 is in fluid communication with the dirty liquid recovery tank 26. A liquid level detection mechanism 262 is provided in the dirty liquid recovery container 26, and is capable of determining whether the dirty liquid in the recovery chamber 261 reaches a preset liquid level in real time. The level sensing mechanism 262 may be a float configuration or a level probe configuration.

Surface cleaning machine 100 is also provided with a dirty liquid outlet port 2112. The dirty liquid outlet port 2112 is in operable fluid communication with the recovery chamber 261 inside the dirty liquid recovery tank 26 via a dirty liquid outlet line 291. The method specifically comprises the following steps: the dirty liquid outlet line 291 extends between the lower portion of the dirty liquid recovery tank 26 and the dirty liquid outlet port 2112. Dirty liquid outlet line 291 is configured to allow dirty liquid inside dirty liquid recovery tank 26 to drain directly to the outside of the machine via this conduit. The dirty liquid outlet line 291 is provided with a flow rate adjustment mechanism 292, the flow rate adjustment mechanism 292 is capable of adjusting the flow rate of the fluid flowing through the dirty liquid outlet line 291, and the adjustment range of the flow rate adjustment mechanism 292 is from 0 (i.e., the pipe is closed) to the maximum flow rate. The flow adjustment mechanism 292 will cause the dirty liquid outlet 291 to have at least a first mode of operation with open passages and a second mode of operation with closed passages.

The vacuum motor 27 may be any suitable motor capable of generating a vacuum negative pressure. The vacuum motor 27 is a dc motor and is powered by the battery pack 24. The vacuum motor 27 is designed to be manually turned on or off by a switch disposed on the operation panel 222.

Referring to fig. 8, the surface cleaning machine 100 is provided with a vacuum path 40 from the suction opening 131 to the dirty liquid recovery tank 26 to the vacuum motor 27 and a dirty liquid outlet path 50 from the dirty liquid recovery tank 26 to the dirty liquid outlet line 291 to the dirty liquid outlet port 2112. By virtue of the vacuum path 40, debris on the surface to be cleaned, as well as used cleaning liquid that has become dirty liquid, can be timely recovered and stored in the dirty liquid recovery tank 26 while the surface cleaning machine 100 is in operation. The contaminated liquid in the contaminated liquid recovery tank 26 can be discharged to the outside of the apparatus via the contaminated liquid discharge path 50.

An exemplary dirty liquid recovery tank 26 is shown in fig. 9-10, the dirty liquid recovery tank 26 having a bottom end 2601 and a top end 2602 opposite the bottom end 2601 and including a bottom wall 263 at the bottom end 2601, a side wall 264 extending from the bottom wall 263 toward the top end 2602, a removable lid assembly 265 at the top end 2602, a first tube 266, and a second tube 267. The side wall 264 and the bottom wall 263 define a recovery chamber 261 located inside the dirty liquid recovery tank 26.

The first tube 266 defines at least a portion of the dirty liquid inlet line 41 leading to the recovery chamber 261.

The second tube 267 forms a part of a dirty liquid outlet line 291 that leads from the recovery chamber 261 to the outside of the recovery chamber 261. The second tube 267 is located outside the recovery chamber 261 and extends from the bottom wall 263 toward the top end 2602. The second tube 267 is located outside of the sidewall 264 and is formed as a unitary member with the sidewall 264. The second tube 267 has a tube port 2671 on the cap assembly 265 at the top end 2602.

Dirty liquid outlet port 2112 is in fluid communication with tube port 2671 via a dirty liquid conduit 2912, dirty liquid conduit 2912 defining a portion of dirty liquid outlet line 291. The flow regulating device 292 would be disposed at this dirty liquid line 2912.

The lid assembly 265 includes a cover 2651 for sealing engagement with the sidewall 264 and a filter 2652 removably supported on the cover 2651. The filter 2652 forms at least a portion of an air exhaust passage leading from the recovery chamber 261 to the vacuum motor 27.

As shown in fig. 11-12, the waste line 2912 includes a hose 2913, and the flow control device 292 includes a hose pressure mechanism 2921. Hose press 2921 is disposed outside of hose 2913 and is capable of exerting a radially compressive force on hose 2913. This radially compressive force can radially collapse and maintain a portion of hose 2913 in a flattened state to intercept the fluid path within hose 2913. Upon activation of the vacuum motor 27, the hose pinching mechanism 2921 radially collapses and holds the hose 2913 in a flattened state.

Tube compression mechanism 2921 includes a fixed wall 2915 on one side of hose 203 and disposed adjacent to an outer sidewall of hose 2913, a knife blade 2914 on the other side of hose 2913, and a knife blade power source 2916 that urges knife blade 2914 radially toward fixed wall 2915 and away from fixed wall 2915. Blade 2914 includes a pair of convex strips 29141 that are distributed along the axial direction of hose 2913 and are parallel to each other. Knife power source 2916 may be a push rod motor that is in control communication with controller 28.

As shown in fig. 11 and 13, when hose presser mechanism 2921 exerts no radial compressive force on hose 2913, knife 2914 moves away from hose 2913, and hose 2913 is in a relaxed state with the fluid passage inside hose 2913 open; dirty liquid outlet 291 will be in the first mode of operation with a clear passage.

As shown in fig. 12 and 14, when the hose 2913 is radially pressed by the hose pressing mechanism 2921, the pair of convex strips 29141 abut against the outer wall surface of the hose; with hose 2913 in a flattened state, the fluid path inside hose 2913 is interrupted; dirty liquid outlet 291 will be in a second mode of operation with the passage closed.

Fig. 15-16 illustrate another exemplary tubing compression mechanism that includes a pair of clamp arms 3914 on opposite sides of a hose 3913, respectively, and a clamp arm power source (not shown) that drives the pair of clamp arms 3914 in an opening and closing motion.

As shown in fig. 15, when the hose clamping mechanism has no radial squeezing force on hose 2913, the pair of clamping arms 3914 are away from hose 3913, and hose 3913 is in a relaxed state with a clear fluid passageway inside hose 3913.

As shown in fig. 16, when the hose compressing mechanism 3921 radially compresses the hose 3913, the pair of holding arms 3914 radially compresses the hose 3913 inward, and the hose 3913 is in a flattened state, and the fluid passage inside the hose 3913 is cut off.

The tube pressing mechanism is not limited to the above two types, and may be any type as long as it can freely block the flow passage inside the hose from the outside.

Referring to fig. 17, surface cleaning apparatus 100 further includes a controller 28 in operative signal communication with various controlled components on the apparatus, such as pump 32 in the fluid delivery system, vacuum motor 27 in the waste recovery system, brushroll motor 15, various switch buttons on operator panel 222 and flow regulator 292. Surface cleaning device 100 is also provided with a charging interface 2116, where charging interface 2116 is electrically connected to battery pack 24, and a charging management circuit 293 is also provided between the two. Under the action of the charging management circuit 293, the electric energy input from the charging interface 2116 can be delivered to the battery pack 24 under the condition that the condition is satisfied, so as to charge the battery pack 24. The charge management circuit 293 is in signal connection with and controlled by the controller 28.

The above-described dirty liquid conduit and flow control device thereof may be applied to an upright surface cleaning apparatus as illustrated in the accompanying drawings, and may also be applied to apparatuses such as a self-moving floor cleaning robot, a self-cleaning station for performing a self-cleaning procedure of the floor cleaning robot, and a self-cleaning station for docking the upright surface cleaning apparatus to perform a self-cleaning operation of the upright surface cleaning apparatus; the operation can be specifically that the dirty liquid is introduced into a dirty liquid recovery container and a dirty liquid pipeline positioned at the upstream of the dirty liquid recovery container, or the dirty liquid is led out from the dirty liquid recovery container and positioned at the downstream of the dirty liquid recovery container.

The above embodiments are merely illustrative of the technical concepts and features of the present application, and the purpose of the present invention is to enable those skilled in the art to understand the content of the present application and implement the present application, and not to limit the protection scope of the present application. All equivalent changes or modifications made according to the spirit of the present application should be covered within the protection scope of the present application.

Claims (10)

1. A cleaning appliance comprising a dirty liquid recovery tank having a recovery chamber therein and a dirty liquid conduit in fluid communication with said recovery chamber, wherein said cleaning appliance further comprises a flow control device for controlling the flow of fluid through said dirty liquid conduit, said dirty liquid conduit comprising a hose, said flow control device comprising a hose clamp mechanism, said hose clamp mechanism being disposed outside said hose and capable of generating a radially compressive force on said hose; the radially compressive force is capable of radially collapsing and holding at least a portion of the hose in a collapsed condition to intercept a fluid passageway within the hose.

2. The cleaning apparatus defined in claim 1, wherein the hose clamp mechanism includes a fixed wall on one side of the hose and disposed adjacent an outer sidewall of the hose, a knife blade on the other side of the hose, and a knife blade power source capable of urging the knife blade to move radially toward the fixed wall and away from the fixed wall.

3. The cleaning apparatus defined in claim 2, wherein said knife includes a pair of ribs extending along an axial direction of said hose and parallel to each other; when the hose pressing mechanism generates radial extrusion force on the hose, the pair of convex strips are abutted with the outer side wall of the hose.

4. The cleaning apparatus defined in claim 1, wherein the hose clamping mechanism includes a pair of clamp arms on opposite sides of the hose and a clamp arm power source for moving the clamp arms apart and apart.

5. A cleaning appliance according to claim 1, wherein said cleaning appliance comprises a cleaning base and an upright body pivotally connected at a lower portion thereof to said cleaning base, said upright body having a handle portion at an upper portion thereof, said dirt-recovery receptacle being removably mounted on said upright body, said hose and said hose-holding mechanism being mounted on said upright body.

6. The cleaning apparatus of claim 1, wherein the dirty liquid recovery container has a bottom end and a top end opposite the bottom end and comprises a bottom wall at the bottom end and a sidewall extending from the bottom wall toward the top end.

7. The cleaning apparatus defined in claim 6, wherein the dirty-liquid recovery tank includes a removable lid assembly at the top end, the lid assembly including a lid body for sealing engagement with the side wall and an air filter removably supported on the lid body, the air filter defining at least a portion of an air discharge path from the recovery chamber to the vacuum motor, the hose and the hose hold-down mechanism being located on an upper side of the dirty-liquid recovery tank.

8. The cleaning apparatus defined in claim 5, wherein the cleaning apparatus comprises a suction opening and a vacuum motor, the cleaning apparatus establishing a vacuum path from the suction opening to the dirty liquid recovery tank to the vacuum motor; when the vacuum motor is started, the hose pressing mechanism radially crushes the hose and keeps the hose in a flat state.

9. The cleaning apparatus of claim 5, wherein a brushroll, a fluid supply container and a fluid dispenser are provided on the cleaning apparatus, the brushroll and the fluid dispenser being disposed on the base, the fluid dispenser being configured to supply fluid from the fluid supply container to the brushroll, the fluid supply container being disposed on the upright body.

10. The cleaning apparatus defined in claim 1, wherein the cleaning apparatus has a dirty liquid outlet port for fluid communication with an external device, the dirty liquid conduit being located between the recovery chamber and the liquid outlet port.

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