CN216907854U - Surface cleaning apparatus - Google Patents

Abstract

The present invention relates to a surface cleaning apparatus comprising a cleaning head adapted to be moved over a surface to be cleaned, an upright wand pivotally connected at a lower portion to the cleaning head, and a portable cleaning apparatus removably mounted on the upright wand, the portable cleaning apparatus comprising: a housing; the suction source is fixedly arranged in the machine shell; the battery pack is arranged on the shell; a solution tank removably mounted on the cabinet; the dirty liquid recovery box is removably arranged on the machine shell, is positioned right below the suction source and is positioned between the solution tank and the battery pack, a dirty liquid containing chamber is defined inside the dirty liquid recovery box, a dirty liquid inlet is arranged on the dirty liquid recovery box, and the dirty liquid inlet, the dirty liquid containing chamber and the suction source are sequentially in fluid communication; a fluid connector disposed on the housing and fluidly connected to the solution tank; and an electrical connector disposed on the case and electrically connected to the battery pack.

Description

Surface cleaning apparatus

Technical Field

The utility model relates to the technical field of cleaning equipment, in particular to surface cleaning equipment.

Background

Surface cleaning devices, in particular upright surface cleaning devices, clean and soil pick-up a surface to be cleaned by using a surface cleaning head with a brush roller. When such machines are used for cleaning operations, the cleaning solution is applied to the surface to be cleaned by the rotating brush roller, and the brush roller, during rotation, is also capable of simultaneously picking up and storing dirt and debris on the floor to be cleaned in the dirt tank on the upright body, together with the suction force drawn into the doorway. However, when a low surface or a high surface (such as a table top, a high wall surface, a table bottom, a sofa bottom, and other special areas) needs to be cleaned, the machine cannot be used for cleaning the special areas continuously due to the limitation of the weight of the machine body and the backward rotation angle (because when the machine body is turned over by an excessive angle, the dirty liquid in the dirty liquid tank flows back into the suction device, which causes damage to the suction device). In order to ensure that these particular areas can be properly washed, the operator needs to additionally prepare different cleaning tools for cleaning, which greatly reduces the cleaning efficiency of the cleaning device.

SUMMERY OF THE UTILITY MODEL

In order to solve the above-mentioned related art problems of limited target cleaning area for use by a surface cleaning apparatus, it is an object of the present invention to provide an improved surface cleaning apparatus which is capable of expanding the cleaning field of the surface cleaning apparatus and greatly improving the cleaning efficiency of the user.

In order to achieve the above purpose, the utility model provides the following technical scheme: a surface cleaning apparatus comprising a cleaning head adapted to be moved across a surface to be cleaned, an upstanding wand pivotally connected to the cleaning head at a lower portion thereof, and a portable cleaning apparatus removably mounted on the upstanding wand, the portable cleaning apparatus comprising: a housing; the suction source is fixedly arranged in the shell; the battery pack is arranged on the shell; a solution tank removably mounted on the housing; a dirty liquid recovery tank removably mounted on the housing and located directly below the suction source and between the solution tank and the battery pack, the dirty liquid recovery tank defining a dirty liquid receiving chamber therein, the dirty liquid recovery tank being provided with a dirty liquid inlet, the dirty liquid receiving chamber and the suction source being in fluid communication in sequence; a fluid connector disposed on the housing and fluidly connected to the solution tank; and the electric connector is arranged on the shell and is electrically connected with the battery pack.

In the above technical solution, preferably, the portable cleaning apparatus includes: the containing cavity is arranged on the machine shell to receive the dirty liquid recovery box; the front part of the containing cavity is provided with an opening, so that the dirty liquid recovery box can be placed into the containing cavity from the front.

In the above preferred embodiment, it is further preferred that the housing includes: a bottom wall and a vertical wall extending upwards from the bottom wall, at least part of the receiving cavity is limited by the vertical wall and the bottom wall.

In the above preferred embodiment, it is further preferred that the housing includes: a clean air outlet in flow communication with said suction source, said clean air outlet being located on said vertical wall.

In the above-described preferred embodiment, it is further preferred that the bottom wall has a first support portion and a second support portion located on both left and right sides of the vertical wall, and one member of the solution tank and the battery pack is supported by the first support portion, and the other member of the solution tank and the battery pack is supported by the second support portion.

In the above preferred embodiment, it is further preferred that the housing includes: the positioning boss is positioned in the containing cavity; and a recess matched with the positioning boss is arranged in the dirty liquid recovery box.

In the above preferred embodiment, it is further preferred that the housing includes: and an opening through which the contaminated fluid inlet port is exposed when the contaminated fluid recovery tank is received in the housing chamber.

In the above preferred embodiment, it is further preferred that the cleaning head includes a brush roller, a brush roller motor for driving the brush roller to rotate, a suction nozzle, and a fluid distributor; when the portable cleaning device is mounted on the upright pushrod, the suction nozzle and the fluid dispenser are in fluid communication with the dirty liquid inlet and the fluid connector, respectively, and the brushroll motor is electrically connected to the electrical connector.

Compared with the prior art, the portable cleaning equipment provided by the utility model can be detached from the vertical push rod, and the dirty liquid recovery box, the suction source, the battery pack and the solution box are all arranged on the portable cleaning equipment. When low surfaces or high surfaces (such as special areas like a table top, a high wall surface, a table bottom and a sofa bottom) need to be cleaned, a user only needs to attach the external hose and the cleaning head accessory to the portable cleaning equipment, the special areas can be cleaned, the cleaning equipment does not need to be replaced, and therefore the applicable cleaning area of the surface cleaning equipment is enlarged, and the cleaning efficiency of the user is improved.

Drawings

FIG. 1 is a first perspective view of a surface cleaning apparatus according to the present invention; wherein the portable cleaning apparatus is supported on the upright push rod;

FIG. 2 is a second perspective view of the surface cleaning apparatus shown in FIG. 1; wherein the portable cleaning device is relatively separated from the upright push rod;

FIG. 3 is an enlarged view of a portion of FIG. 2 at A;

FIG. 4 is a side cross-sectional view of a cleaning head provided by the present invention;

FIG. 5 is a disassembled schematic view of the portable cleaning device provided by the present invention;

FIG. 6 is a side cross-sectional view of the portable cleaning apparatus shown in FIG. 5;

FIG. 7 is a schematic view of an application scenario of the portable cleaning device shown in FIG. 5; wherein the portable cleaning equipment is connected with the cleaning head accessory through an external hose;

FIG. 8 is a perspective view of the upright pushing rod and the cleaning head of the present invention;

FIG. 9 is an enlarged view of a portion of FIG. 8 at B;

figure 10 is an electrical schematic diagram of the surface cleaning apparatus shown in figure 1.

The labels in the figure are:

100. a surface cleaning device; 20. a suction pipe; 30. a cleaning tool;

1. a cleaning head; 11. a base body; 12. a roll cavity; 121. a lower opening; 13. a brush roll; 14. a fluid dispenser; 15. a dirty liquid recovery channel; 16. a suction nozzle; 17. a moving wheel; 18. a brush roll motor;

2. a vertical push rod; 21. a hinged end; 22. a first handle; 221. a first control unit;

23. a main rod body; 231. a clamping piece; 232. positioning blocks; 233. a docking portion; 234. a butt joint surface; 235. an electrical connection port; 236. a solution interface; 237. a dirty liquid outlet;

3. a portable cleaning device; 31. a housing; 311. a bottom wall; 312. a vertical wall; 313. an accommodating chamber; 314. positioning the boss; 315. an opening part; 316. a clean air outlet; 317. a first support; 318. a second support;

32. a dirty liquid recovery tank; 321. a bottom end; 322. a top end; 323. a side wall; 324. a dirty liquid storage chamber; 325. a liquid inlet pipe; 326. a dirty liquid inlet; 327. a communication port;

33. a solution tank; 331. a liquid outlet nozzle; 332. a fluid connector; 333. a solution pump; 335. a socket;

34. a battery pack; 341. an electrical outlet; 342. an electrical connector;

35. a source of suction;

36. a second handle; 361. a second control unit; 37. positioning the opening; 38. positioning a groove; 39. and (4) a groove.

Detailed Description

To explain technical contents, structural features, achieved objects and effects of the present invention 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, and it is apparent that the described embodiments are only a part of the embodiments of the present application, and not all embodiments. In the following description, for purposes of explanation, numerous specific details are set forth in order to provide a detailed description of various exemplary embodiments or implementations of the utility model. However, various exemplary embodiments may be practiced without these specific details or with one or more equivalent arrangements. Moreover, the various exemplary embodiments may be different, but are not necessarily exclusive. For example, the particular shapes, configurations and characteristics of the exemplary embodiments may be used or implemented in another exemplary embodiment without departing from the inventive concept.

In this application, the term "electrically connected" means that two objects are electrically connected on the physical layer by means of an electrical conductor, an electrical connector, and an intermediate component such as a relay, directly or through an electrical conductor. It will be appreciated that an electrical connection may enable both current transfer and electrical signal transfer between two objects, wherein electrical signal transfer may then enable a signal connection between the two objects.

FIG. 1 illustrates a surface cleaning apparatus 100 provided by the present invention, the surface cleaning apparatus 100 being capable of moving across a surface to be cleaned and performing a cleaning operation. Referring to fig. 2, the surface cleaning apparatus 100 comprises a cleaning head 1 at the bottom, an upright pushing bar 2 rotatably hinged to the rear of the cleaning head 1, and a portable cleaning apparatus 3 detachably supported on the upright pushing bar 2. Wherein the portable cleaning device 3 is located at the upper side of the cleaning head 1 and the front side of the upright push rod 2. The directional terms in this application describing the relative positional relationship such as "up", "down", "front", "rear", "left", "right", and the like are based on the viewing angle at which the portable cleaning apparatus 3 is mounted on the upright post 2 and the user pushes the surface cleaning apparatus 100 forward to perform the cleaning work.

Referring to fig. 4, the cleaning head 1 includes a housing 11 forming a contour of a main body, a brush roller 13 rotatably disposed at a front portion of the cleaning head 1, and a fluid dispenser 14 facing the brush roller 13. The front of the housing 11 defines a roller chamber 12, the roller chamber 12 having a lower opening 121 facing the surface to be cleaned, the brush roller 13 being disposed at the roller chamber 12 and the bottom of the brush roller 13 passing out of the roller chamber 12 to contact the surface to be cleaned.

A fluid dispenser 14 is adjacent to the roller chamber 12 and is capable of dispensing a cleaning solution onto the brush roller 13 to wet the brush roller 13. The cleaning head 1 further includes a dirty liquid recovery passage 15 in the interior, a pair of moving wheels 17 rotatably attached to the rear of the housing 11, and a brush roller motor 18 drivingly connected to the brush roller 13. The dirty liquid recovery channel 15 has a suction nozzle 16 facing the brush roll 13, the suction nozzle 16 being located on the underside of the fluid distributor 14 and in fluid communication with the roll chamber 12. A brush roller motor 18 is located inside the housing 11 and is used to drive the brush roller 13 in rotation, and a moving wheel 17 is used to support the cleaning head 1 and to effect movement of the cleaning head 1 over the surface to be cleaned.

Referring to fig. 2, 3 and 5, the portable cleaning apparatus 3 includes a housing 31 detachably connectable to the upright push rod 2, a soil recovery tank 32 for receiving and storing soil, a solution tank 33 for storing and providing a cleaning solution, a battery pack 34 for providing electric power, and a suction source 35 disposed inside the housing 31, the soil recovery tank 32 being disposed inside the housing 31 between the battery pack 34 and the solution tank 33. Dirty liquid recycling bin 32, solution tank 33 and battery package 34 all detachably connect on casing 31, and its specific connected mode can adopt mechanical type joint, also can adopt magnetic force to connect. In other embodiments, the battery pack 34 may be fixed and non-removable.

Referring to fig. 6, the contaminated fluid recovery tank 32 includes a bottom end 321, a top end 322 vertically opposite to the bottom end 321, a sidewall 323 extending from the bottom end 321 to the top end 322, and a fluid inlet pipe 325 penetrating the sidewall 323. The bottom end 321, the top end 322 and the side wall 323 together form the outer contour of the dirty liquid recovery tank 32 and define a dirty liquid receiving chamber 324 located inside, the liquid inlet pipe 325 extends into the upper portion of the dirty liquid receiving chamber 324 and is in fluid communication with the dirty liquid receiving chamber 324, and the liquid inlet pipe 325 has a dirty liquid inlet 326 located at the side wall 323 and exposed to the outside.

The housing 31 includes a bottom wall 311, a vertical wall 312 integrally formed with the bottom wall 311, a receiving cavity 313 defined by the bottom wall 311 and the vertical wall 312, and a positioning boss 314 formed by a portion of the vertical wall 312 recessed toward the inside of the receiving cavity 313. The receiving cavity 313 has an opening (not shown) at the front, two sets of clean air outlets 316 are arranged on the vertical wall 312, the two sets of clean air outlets are opposite to each other, and the top end of the positioning boss 314 is configured as a slope inclined towards the rear and the upper side and is provided with a pair of opening portions 315 exposed outside.

The top end 322 of the dirty liquid recycling tank 32 is further opened with a communicating port 327 in fluid communication with the dirty liquid receiving chamber 324, the receiving chamber 313 is configured to allow the dirty liquid recycling tank 32 to be put into and receive the dirty liquid recycling tank 32 from an opening at the front of the dirty liquid recycling tank, and the suction source 35 is disposed in the housing 31 and located right above the receiving chamber 313.

The backside of the dirty liquid recovery tank 32 is provided with a recess that fits the positioning boss 314, and the dirty liquid inlet 326 is arranged in the recess. When the dirty liquid recovery box 32 is installed in the receiving cavity 313, the dirty liquid recovery box 32 is supported on the bottom wall 311 and the dirty liquid inlet 326 is exposed from the opening 315 of the positioning boss 314, the suction source 35 is in fluid communication with the dirty liquid receiving chamber 324 through the communication port 327 and can form negative pressure in the dirty liquid receiving chamber 324, and the outlet of the suction source 35, the gap between the vertical wall 312 and the dirty liquid recovery box 32 and the two sets of clean air outlets 316 form an air path for flowing clean air out of the portable cleaning device 3, and meanwhile, the clean air on the air path can be depressurized and decelerated along the path, so that the noise reduction effect is achieved.

A solution chamber (not shown) capable of containing a cleaning solution is formed in the solution tank 33, and the solution chamber has a liquid outlet nozzle 331 opened on the tank body of the solution tank. Housing 31 is further provided with a socket 335 fitted to spout 331, a fluid connector 332 in fluid communication with socket 335, and a solution pump 333 in fluid communication with fluid connector 332, with the tail of fluid connector 333 exposed outwardly from the top ramp surface of positioning boss 314.

The bottom wall 311 of the housing 31 extends along the left-right direction to form a first supporting body 317 and a second supporting body 318, and both the first supporting body 317 and the second supporting body 318 are located outside the vertical wall 312. The socket 335 is located on the first support 317. When solution tank 33 is mounted on housing 31, solution tank 33 is supported on first support 317, spout 331 interfaces with socket 335 such that fluid connector 332 is in fluid communication with the solution chamber, and solution pump 333 is capable of drawing cleaning solution from the solution chamber and delivering it outwardly through fluid connector 332.

As shown in fig. 2 and 3, the rear portion of the housing 31 is sequentially provided with a clip interface 37, a positioning groove 38 and a groove 39 extending in the up-down direction from top to bottom, the groove 39 is adapted to the main rod body 23 of the upright push rod 2 (see below), and when the housing 31 is mounted on the upright push rod 2, the main rod body 23 is embedded in the groove 39.

Referring to fig. 5, the housing 31 is further provided with an electrical connector 342 disposed between the recess 39 and the positioning boss 314, and the battery pack 34 is provided with an electrical socket 341, and the battery pack 34 is electrically connected to the suction source 35 and the solution pump 333 to supply power to the two. The electrical connector 342 projects outward and is inclined downward toward the rear with respect to both the recess 39 and the positioning boss 314. When the battery pack 34 is mounted on the housing 31, the battery pack 34 is supported on the second support 318 and supplies electric power to the suction source 35 and the solution pump 333, and the battery pack 34, the electric outlet 341, and the electric connector 342 are electrically connected in turn.

The portable cleaning device 3 further comprises a second handle 36 fixedly attached to the top of the housing 31, the suction source 35 being located between the housing 31 and the second handle 36, the second handle 36 being configured to be suitable for a user to hold and carry the portable cleaning device 3 in one hand. Referring to fig. 10, the second handle 36 is provided with a second control portion 361, the second control portion 361 is provided with a third control key (not shown) connected with the suction source 35 by signals, and the third control key is electrically connected with the suction source 35 to control the suction source 35 to start and stop.

Referring to fig. 7, the surface cleaning apparatus 100 also has an external cleaning attachment comprising a suction hose 30 and a cleaning implement 20. One end of the suction tube 30 is coupled to the portable surface cleaning host 3 to make fluid and electrical communication with the portable surface cleaning host 3. The suction tube 30 is coupled to the other end of the suction tube 30. In this example, the external cleaning attachment has an external dirty liquid recycling channel therein that is independent of the external dirty liquid inlet 326 and can be interfaced with the dirty liquid inlet 326, an external cleaning solution channel that can be interfaced with the external cleaning attachment, and at least one electrical lead that can be electrically connected to the electrical connector 342 to provide for recycling of dirty liquid from the cleaning tool 20, delivery of cleaning solution to the cleaning tool 20, and corresponding electrical connections between the control component and the powered component. Cleaning implement 20 may also be replaceable as desired, such as a powered cleaning head with a powered brush and suction nozzle, a soft surface cleaning head with a fluid suction nozzle, a hard surface cleaning head attachment with a scrubbing strip, or a flat suction cleaning head with a flat suction opening. The control means includes at least a fourth control key (not shown in the figure) capable of controlling the solution pump 333.

Referring to fig. 8 to 9, the upright push rod 2 includes a hinge end 21 at a lower portion, a first handle 22 at an upper portion, and a main rod 23 between the hinge end 21 and the first handle 22. The hinged end 21 is rotatably hinged to the cleaning head 1 and can rotate relative to the cleaning head 1, so that a user can adjust the angle of the upright push rod 2 and the cleaning head 1 according to actual needs, such as adjusting the upright push rod 2 and the cleaning head 1 to be approximately at a right angle for storage, or adjusting the upright push rod 2 to be inclined backwards relative to the cleaning head 1 so as to push the cleaning head 1 forwards for cleaning.

The main rod 23 is sequentially provided with a locking member 231 adapted to the locking interface 37, a positioning block 232 adapted to the positioning slot 38, and an abutting portion 233 adapted to the positioning boss 314 from top to bottom. The top of the docking portion 233 is a docking surface 234 inclined toward the upper rear, and the docking surface 234 is provided with an electrical connection port 235 adapted to the electrical connector 342, a solution port 236 adapted to the fluid connector 332, and a waste liquid outlet 237 adapted to the waste liquid inlet 326, in this order from the top. The solution port 236 and the dirty liquid outlet 237 are in fluid communication with the fluid dispenser 14 and the suction nozzle 16 in the cleaning head 1, respectively, and the electrical connection port 235 is electrically connected to the brush roller motor 18 of the cleaning head 1.

The first handle 22 is configured to be held by a user and is provided with a first control portion 221, the first control portion 221 having a first control key and a second control key electrically connected to the electrical connection port 235. When the portable surface cleaning apparatus 3 is supported on the upright putter 2, the snap-fit member 231 snaps into the snap-fit interface 37 and the positioning slot 38 engages with the positioning block 232 to secure the portable surface cleaning apparatus 3 to the upright putter 2; the fluid connector 332 is engaged with the solution port 236, and the solution chamber, the fluid connector 332, the solution port 236, and the fluid distributor 14 are in turn in fluid communication and form a solution delivery path for delivering the cleaning solution to the brush roller 13; the dirty liquid inlet 326 is joined to the dirty liquid outlet 237, the roller chamber 12, the dirty liquid recovery channel 15, the dirty liquid outlet 237, the liquid inlet pipe 325 and the dirty liquid receiving chamber 324 are in fluid communication in sequence, and a dirty liquid recovery path is formed for recovering dirty liquid from the surface to be cleaned; the electrical connection port 235 is connected with the electrical connector 342, the battery pack 34 is electrically connected with the brush roll motor 18 to provide power for the brush roll motor, and the first control key and the second control key of the first control part 221 are respectively and electrically connected with the suction source 35 and the solution pump 333 to control the start and stop of the suction source 35 and the solution pump 333 and to adjust the output force of the suction source 35 and the solution pump 333.

With reference to fig. 10, the working principle of the surface cleaning apparatus 100 is explained as follows: when a cleaning operation is required for a surface to be cleaned, such as a floor surface, the portable surface cleaning main unit 3 is attached to the upright push rod 2 and the suction source 35 and the solution pump 333 are simultaneously activated using the first control key and the second control key at the first control part 221, and the brush roller motor 18 on the cleaning head 1 is also simultaneously activated. At this time, the suction source 35 may also be controlled to be activated by the third control key at the second control part 361; the cleaning solution in the solution tank 33 reaches the fluid distributor 14 along the solution delivery path and is distributed to the brush roller 13 by the fluid distributor 14, the brush roller motor 18 rotates the brush roller 13, and the brush roller 13 cleans the surface to be cleaned with the cleaning solution. The suction source 35 forms a negative pressure in the dirty liquid storage chamber 324, and the dirty liquid on the surface to be cleaned enters the dirty liquid recovery path from the lower opening 121 and is finally stored in the dirty liquid recovery tank 32 by the negative pressure.

When it is desired to perform a cleaning operation on a surface, such as a low or high surface (e.g., a particular area such as a table top, a wall, a table bottom, a sofa bottom, etc.), the user can detach the portable cleaning device 3 from the upright 2 and couple it to an external cleaning attachment. For controlling the pumping source 35 to be activated using the third control at the second control 361 and the solution pump 333 to be activated using the fourth control; the cleaning solution in the solution tank 33 is fed through the suction pipe 30 to the cleaning tool 20 for cleaning the surface to be cleaned with the cleaning tool, and the used cleaning solution is recovered through the suction pipe 30 into the waste recovery tank 32.

When working with the portable cleaning apparatus 3 and the external cleaning attachment, the user can select the appropriate type of cleaning tool according to the actual needs. Thus, a user can clean various surfaces with the aid of an external cleaning accessory; certainly, in the cleaning process by using the external cleaning accessory, a user can also replace different types of cleaning tools at any time according to the requirement; thereby, the applicable cleaning area of the portable cleaning device 3 can be enlarged and the cleaning efficiency of the user can be improved.

The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the foregoing description only for the purpose of illustrating the principles of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the utility model as defined by the appended claims, specification, and equivalents thereof.

Claims (8)

1. A surface cleaning apparatus comprising a cleaning head (1) adapted to be moved over a surface to be cleaned, an upright pole (2) pivotally connected at a lower portion to said cleaning head (1), and a portable cleaning apparatus (3) removably mounted on said upright pole (2), said portable cleaning apparatus (3) comprising:

a housing (31);

a suction source (35) fixedly mounted in the housing (31);

a battery pack (34) mounted on the housing (31);

a solution tank (33) removably mounted on the housing (31);

a waste recovery tank (32) removably mounted to the housing (31) and positioned directly below the suction source (35) and between the solution tank (33) and the battery pack (34), the waste recovery tank (32) defining a waste receiving chamber (324) therein, the waste recovery tank (32) having a waste inlet port (326) therein, the waste inlet port (326), the waste receiving chamber (324) and the suction source (35) being in fluid communication in sequence;

a fluid connector (332) provided on the housing (31) and fluidly connected to the solution tank (33); and

and the electric connector (342) is arranged on the shell (31) and is electrically connected with the battery pack (34).

2. A surface cleaning apparatus as claimed in claim 1, characterised in that the portable cleaning apparatus (3) comprises: a housing chamber (313) provided in the housing (31) and receiving the dirty liquid recovery tank (32); the front part of the containing cavity (313) is provided with an opening, so that the dirty liquid recovery box (32) can be placed into the containing cavity (313) from the front.

3. A surface cleaning apparatus as claimed in claim 2, characterised in that the housing (31) comprises: a bottom wall (311) and a vertical wall (312) extending upwards from the bottom wall (311), and at least part of the receiving cavity (313) is defined by the vertical wall (312) and the bottom wall (311).

4. A surface cleaning apparatus as claimed in claim 3, characterised in that the housing (31) comprises: a clean air outlet (316), said clean air outlet (316) in fluid communication with said suction source (35), said clean air outlet (316) outlet positioned on said vertical wall (312).

5. A surface cleaning apparatus as claimed in claim 3, characterised in that the bottom wall (311) has first (317) and second (318) supports on either side of the vertical wall (312); one of the solution tank (33) and the battery pack (34) is supported by the first support part (317), and the other is supported by the second support part (318).

6. A surface cleaning apparatus as claimed in claim 2, characterised in that the housing (31) comprises: a positioning boss (314) located within the receiving cavity (313); and a recess matched with the positioning boss (314) is arranged in the dirty liquid recovery box (32).

7. A surface cleaning apparatus as claimed in claim 2, characterised in that the housing (31) comprises: an opening (315) through which the contaminated fluid inlet port (326) is exposed when the contaminated fluid collection tank (32) is received in the housing chamber (313).

8. A surface cleaning apparatus as claimed in claim 1, characterized in that the cleaning head (1) comprises a brush roll (13), a brush roll motor (18) for driving the brush roll (13) in rotation, a suction nozzle (16) and a fluid distributor (14); when the portable cleaning device (3) is mounted on the upright pushrod (2), the suction nozzle (16) and the fluid dispenser (14) are in fluid communication with the dirty liquid inlet (326) and the fluid connector (332), respectively, and the brushroll motor (18) is electrically connected to the electrical connector (342).

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