Cleaning system

Abstract

The present invention relates to a cleaning system comprising: a mop assembly including a stem portion and a mop head portion rotatably attached to the stem portion, the mop head portion including a housing and a liquid absorbent layer held at the housing, the housing being configured with an actuation structure at a side thereof facing away from the liquid absorbent layer; a bucket assembly including a bucket unit and a cover unit detachably arranged above the bucket unit, the cover unit being configured with an aperture for insertion of the mop assembly, the cover unit being provided with a nozzle and an actuating mechanism cooperating with the actuation structure at two sides of the aperture, respectively, the cover unit further including a pumping unit configured to be in fluid communication with a reservoir arranged at the bucket assembly and to be actuated by the actuating mechanism, the actuation structure being capable of cooperating with the actuating mechanism to drive the pumping unit to spray liquid stored in the reservoir via the nozzle onto the liquid absorbent layer of the mop assembly when the mop assembly is inserted into the aperture of the bucket assembly along a vertical direction and moves up and down therein.

Description

Technical Field

[0001] This invention relates to a cleaning system. Background Technology

[0002] Various types of cleaning systems are known in the prior art.

[0003] For example, cleaning systems with separate mops and buckets are known. In such systems, water and detergent are contained in the bucket. The mop head is soaked in the bucket and then used to mop the floor. The mop head is also cleaned in the bucket. However, as the cleaning process continues, the initially "clean" water in the bucket becomes increasingly dirty, leading users to clean the floor with wastewater.

[0004] Cleaning systems in the form of spray mops are also known, featuring a built-in water tank and a spray pump to wet the surface to be cleaned. While the water in the tank remains clean in this type of system, it cannot remove dirt from the mop head, which also causes users to carry dirt onto the area to be cleaned. Summary of the Invention

[0005] The purpose of this invention is to at least partially overcome the above-mentioned problems.

[0006] According to a first aspect of the invention, a pressing device for a liquid absorption unit is provided, the pressing device comprising: a support assembly having an opening for the liquid absorption unit configured therein, the liquid absorption unit being insertable into the opening in a vertical direction; a roller movably arranged in the opening of the support assembly and including a scraper extending in an axial direction along the roller, wherein the roller is configured such that when the liquid absorption unit is inserted into the opening, the scraper presses against the liquid absorption unit and forms an obtuse angle with the surface of the liquid absorption unit to be pressed relative to the vertical direction.

[0007] According to another aspect of the present invention, a cleaning system is provided, comprising: a mop assembly including a handle and a liquid absorption unit rotatably attached to the handle; and a bucket assembly having the aforementioned squeezing device.

[0008] According to another aspect of the invention, a cleaning system is provided, comprising: a mop assembly including a handle and a mop head rotatably attached to the handle, the mop head including a housing and a liquid-absorbing layer retained in the housing, wherein the housing has an actuation structure on its side opposite to the liquid-absorbing layer; a bucket assembly including a bucket unit and a cover unit detachably disposed above the bucket unit, wherein the cover unit has an opening for inserting the mop assembly, and the cover unit has nozzles and an actuator cooperating with the actuation structure on both sides of the opening, the cover unit further including a pumping unit configured to be in fluid communication with a reservoir disposed in the bucket assembly and actuated by the actuator, wherein when the mop assembly is inserted vertically into the opening of the bucket assembly and moves up and down therein, the actuation structure can cooperate with the actuator to drive the pumping unit to spray liquid stored in the reservoir through the nozzles onto the liquid-absorbing layer of the mop assembly.

[0009] The features and advantages of the invention will become more apparent from the following brief description of the accompanying drawings, the drawings themselves, the detailed description of preferred embodiments, and the appended claims. Attached Figure Description

[0010] The invention will be further described below with reference to the accompanying drawings.

[0011] Figure 1 The cleaning system according to the present invention is illustrated schematically;

[0012] Figure 2 The cover unit of the bucket assembly of the cleaning system according to the present invention is shown schematically, wherein the outer shell of the bucket assembly is omitted;

[0013] Figure 3 schematically shown Figure 2 An exploded view of the main components of the cover unit of the bucket assembly;

[0014] Figure 4 schematically shown Figure 2 A partially exploded view of the main components of the cover unit of the bucket assembly;

[0015] Figure 5 A perspective view of the covering unit of the bucket assembly of the cleaning system according to the present invention is shown schematically.

[0016] Figure 6 A support frame of the cleaning system according to the present invention is shown schematically;

[0017] Figure 7 schematically shown Figure 6 The relative position of the bracket and the roller;

[0018] Figure 8A portion of another support of the cleaning system according to the invention is schematically shown, on which rollers and an actuator are mounted;

[0019] Figure 9 A schematic three-dimensional view of the actuator is shown;

[0020] Figure 10 Another perspective view of the covering unit of the bucket assembly of the cleaning system according to the present invention is shown schematically;

[0021] Figure 11 The cylinder of the pumping unit of the cleaning system according to the present invention is shown schematically;

[0022] Figure 12 A partial illustration of the covering unit of the bucket assembly of the cleaning system according to the present invention is shown schematically;

[0023] Figure 13 A partial illustration of the cleaning system is shown schematically when the mop assembly is inserted into the bucket assembly;

[0024] Figure 14a The first working state of the covering unit of the bucket assembly of the cleaning system according to the present invention is schematically shown;

[0025] Figure 14b The second working state of the covering unit of the bucket assembly of the cleaning system according to the present invention is schematically shown;

[0026] Figure 15 It shows Figure 13 A cross-sectional diagram of the cleaning system;

[0027] Figure 16 A partial enlarged view of Figure 14 is shown;

[0028] Figure 17 It shows Figure 13 Another cross-sectional view of the cleaning system;

[0029] Figure 18 A partial cross-sectional view of the cleaning system is shown when the mop assembly is inserted into the bucket assembly;

[0030] Figure 19 A cross-sectional view of the cleaning system is shown when the mop assembly is inserted into the bottom of the bucket assembly;

[0031] Figure 20 A cross-sectional view of the cleaning system is shown when the mop assembly is withdrawn from the bucket assembly;

[0032] Figure 21 A partial cross-sectional view of the cleaning system is shown when the mop assembly is withdrawn from the bucket assembly; and

[0033] Figure 22a and Figure 22b The flow path of the liquid in the cleaning system is shown separately. Detailed Implementation

[0034] Preferred embodiments of the invention will now be described in more detail with reference to the accompanying drawings. While preferred embodiments of the invention are shown in the drawings, it should be understood that the invention can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that the invention will be more thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

[0035] In the following description, certain specific details are set forth for the purpose of illustrating various embodiments of the invention to provide a thorough understanding of these embodiments. However, those skilled in the art will recognize that embodiments may be practiced without one or more of these specific details. In other instances, well-known apparatuses, structures, and techniques associated with this application may not have been shown or described in detail to avoid unnecessarily obscuring the description of embodiments.

[0036] Unless the context requires otherwise, throughout the specification and claims, the word “comprising” and its variations, such as “including” and “having”, shall be understood to have an open, inclusive meaning, that is, to be interpreted as “including, but not limited to”.

[0037] Throughout this specification, references to "one embodiment" or "some embodiments" indicate that a particular feature, structure, or characteristic described in connection with an embodiment is included in at least one embodiment. Therefore, the appearance of "in one embodiment" or "in some embodiments" in various places throughout the specification does not necessarily refer to the same embodiment. Furthermore, a particular feature, structure, or characteristic may be combined in any way in one or more embodiments.

[0038] Furthermore, the terms "first," "second," etc., used in the specification and claims are used merely for clarity of description to distinguish various objects, and do not limit the size, quantity, or other order of the objects described. Directional terms indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are used solely for the purpose of describing this application, not to indicate or imply that the objects referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting this application.

[0039] exist Figure 1 The image schematically illustrates a cleaning system 1 according to the present invention. The cleaning system 1 includes a mop assembly 2 and a bucket assembly 3. The mop assembly 2 can be folded along the edge of a wall. Figure 1The direction of the double arrow I shown in the figure indicates insertion into and extraction from the bucket assembly 3, that is, the mop assembly 2 can move up and down in the bucket assembly 3 to clean and wring out the mop assembly 2, which will be explained below.

[0040] The mop assembly 2 includes a handle 10 and a liquid-absorbing unit rotatably attached to the handle 10, the liquid-absorbing unit being also referred to below as the mop head 20. The handle 10 is preferably telescopic. Figure 1 The handle 10 shown includes a first handle section 101 and a second handle section 102, one of which can extend into or be pulled out of the other to change the length of the handle 10. For this purpose, the handle 10 also includes a locking ring 103, by which relative movement between the handle sections can be released or locked. The mop head 20 includes a housing 221 and a liquid-absorbing layer 222 held in the housing 221. The liquid-absorbing layer 222 is preferably detachably arranged on the housing 221. The liquid-absorbing layer 222 can be a sponge layer, a cloth layer, etc. Figure 1 The image shows a mop head 20 constructed as a flat, rectangular shape. The aforementioned "folded state" refers to a state where the main extending directions of the mop assembly 2's handle 10 and the liquid absorption unit are at least substantially parallel to each other. Here, the handle 10 is rotatably attached to the housing 221 of the mop head 20 via a hinge 223, as can be seen from... Figure 13 As is particularly evident in the text.

[0041] See Figure 13 , Figure 17 The mop head 20's housing 221 is constructed in a stepped manner, that is, it is constructed with a first housing segment 224 closer to the liquid absorption layer 222 and a second housing segment 225 farther away from the liquid absorption layer 222. A stepped slope 226 is formed between the two housing segments, which forms an actuating structure, as will be explained below. Therefore, the actuating structure 226 is constructed on the side of the housing 221 opposite to the liquid absorption layer 222. Referring to the state of the mop assembly 2 in the bucket assembly 3, the slope 226 extends obliquely relative to the vertical direction, such that the second housing segment 225 is at least approximately inverted right-angled trapezoidal in shape, that is, the longer base side points upward.

[0042] like Figure 1 As shown, the bucket assembly 3 includes a bucket unit 40 and a cover unit 30 detachably disposed above the bucket unit 40. For example, the cover unit 30 is detachably snapped onto the bucket unit 40. The cover unit 30 has an opening 309 for inserting the mop assembly 2. Preferably, the opening 309 is formed as a flared opening to facilitate the introduction of the mop assembly 2, i.e., the opening gradually increases outward on the open side.

[0043] exist Figure 1The diagram also schematically illustrates a reservoir 301 for cleaning the liquid-absorbing layer 222 of the mop head 20, detachably arranged at the cover unit 30, and a handle 302 rotatably mounted at the cover unit 30. Preferably, a portion of the housing of the reservoir 301 is constructed complementary to the side of the outer casing 300 of the cover unit 30, i.e., the reservoir 301 is embedded in the outer casing 300. In this case, at least a portion of the body of the reservoir 301 facing the external environment is preferably constructed to be transparent, allowing the amount of cleaning liquid in the reservoir 301 to be seen from the outside. The cleaning liquid may be water or water with added detergent, disinfectant, or other ingredients.

[0044] Of course, the storage container 301 and handle 302 can also be placed in other parts of the bucket assembly 3 as needed.

[0045] exist Figure 2 The diagram shows a perspective view of the bucket assembly 3, in which the outer shell of the covering unit 30 is omitted to more clearly show the internal structure of the covering unit 30. It can be seen that a support assembly is also provided in the covering unit 30, which is configured with an opening 305 for a liquid absorption unit, into which the liquid absorption unit can be inserted vertically. The opening 305 can be directly positioned below the orifice 309.

[0046] Also available Figure 2 The cover unit 30 includes an actuator 306 actuated by the inserted mop assembly 2, a roller 330, a pumping unit P, and a conduit 356 connected to the reservoir 301. The aforementioned parts and in Figure 2 At least one of the housing 300 (not shown) and the reservoir 301 can be held by a support assembly. It can be seen that the actuator 306 and the roller 330 are arranged on both sides of the opening 305, such that when the mop assembly 2 is in the opening 305, the actuator 306 and the roller 330 are respectively positioned on both sides of the mop head 20 of the mop assembly 2. The pumping unit P can be connected to the reservoir 301 via a conduit 356, allowing cleaning liquid to be supplied to the pumping unit P through the reservoir 301.

[0047] An exemplary bracket assembly is shown, comprising a first bracket 303 and a second bracket 304, which can be assembled together. This simplifies the design and manufacture of the bracket assembly. For example, the first bracket 303 and the second bracket 304 can be connected together by threaded connection, welding, snap-fit, bonding, or other suitable means. Thus, the opening 305 can be formed by combining the first bracket 303 and the second bracket 304. A portion of a first opening section 305a and a second opening section 305b are shown formed on the first bracket 303, and another portion of the first opening section 305a is formed on the second bracket 304. The two opening sections are substantially perpendicular to each other, wherein the first opening section can be used to accommodate the liquid absorption unit, i.e., the mop head 20, and the second opening section can be used to accommodate the handle 10.

[0048] It can also be seen that the opening 305 is arranged approximately in the center of the covering unit 30, and the pumping unit P and the storage unit 301 are also arranged on both sides of the opening 305, which makes reasonable use of the structural space of the covering unit 30.

[0049] The following is combined Figures 3 to 13 The covering unit 30 of the cleaning system 1 according to the present invention is further described.

[0050] The first support 303 and the second support 304 are configured in a semi-flare shape, that is, each has a substantially straight first section 310, 320 and a second section 311, 321 with a gradually widening cross-section, which are arranged together above the open side of the bucket unit. The first support 303 and the second support 304 are substantially thin-walled, so the opening 305 formed by the first support 303 and the second support 304 is also generally flare-shaped. Here, the cross-section of the portion of the opening 305 in the first section of the first support 303 and the second support 304 remains substantially unchanged, and corresponds to the cross-section of the mop assembly 2 in its folded state. Specifically, the cross-section of the first opening section 305a of the opening 305 corresponds to the cross-section of the mop head 20, and the portion of the cross-section of the second opening section 305b of the opening 305 facing away from the first opening section 305a corresponds to the cross-section of the corresponding portion of the handle 10, for example, it can be semi-circular, thereby enabling the mop assembly 2 to occupy a predetermined position in the bucket assembly 3 in a guided manner; the cross-section of the portion of the opening in the second section of the first bracket 303 and the second bracket 304 gradually increases in the direction towards the bucket assembly.

[0051] A roller 330 is movably arranged in the opening 305 of the support assembly. This roller is configured to always at least partially contact the liquid-absorbing layer 222 of the mop head 20, particularly when the mop assembly 2 is introduced into the opening 305. This allows the roller to compress the liquid-absorbing layer 222 of the mop head 20, at least partially reducing its thickness, thereby squeezing out the liquid contained within the liquid-absorbing layer 222 and scraping away dirt adhering to its surface. Preferably, a roller 370 is also rotatably arranged in the opening 305, abutting against the housing 221 of the mop head 20 when the mop assembly 2 is introduced into the opening 305. A pair of rollers 370 are shown, the distance between which may be greater than the length of the longer base of the right-angled trapezoidal second housing section 225 of the housing 221, allowing the rollers 370 to abut against the first housing section 224 to guide the mop head 20. Therefore, the minimum distance between the outer periphery of the roller 330 and the outer periphery of the roller 370 in the transverse direction to the vertical direction should be less than the initial thickness of the liquid absorption unit. Thus, the combination of the aforementioned support assembly, roller 330, and roller 370 can be considered as a squeezing device acting on the liquid absorption unit. Of course, the roller 370 is optional. In cases where the latter is not shown in the drawings, the housing 221 of the mop head 20 can be guided by a support, for example, by a guide plate provided on the support.

[0052] The roller 330 may have journals 331 for support on both sides and scrapers 332 extending axially between the journals 331. The roller 330 also includes discs 334, preferably comprising a plurality of discs 334 spaced apart axially, wherein at least one of the discs 334 is provided with a notch 335, and particularly preferably, at least one of the two outermost discs 333 of the discs 334 is provided with a notch 335. The discs 333 and 334 have the same diameter. The axial length of the scraper 332 is preferably designed to be greater than the width of the liquid absorption layer of the liquid absorption unit. The longitudinal edge 336 of the scraper 332 is located outside the circumferential edge of the disc 334, that is, the distance from the longitudinal edge 336 of the scraper 332 to the axis of rotation of the roller 330 is greater than the radius of the disc 334. In one embodiment, the roller 330 may be constructed rotationally symmetrically.

[0053] Preferably, the roller 330 is integrally constructed.

[0054] Preferably, the cross-section of the scraper 332 of the roller 330 gradually tapers from the center of the roller 330 towards both sides to reduce the weight of the roller. Particularly preferably, the surface of the scraper 332 is an arc-shaped surface to facilitate the flow of liquid.

[0055] Preferably, each of the outermost discs 333 of the roller 330 may be provided with two notches 335 spaced apart in the circumferential direction.

[0056] Figure 3 The first support 303 of the support assembly is shown to have an open recess 322 for the journal of the roller 370. Preferably, two recesses 322 are provided for each of the two journals of each roller 370 to achieve more stable support for the roller 370.

[0057] Figure 3 The first support 303 of the support assembly is also shown to be configured with an elongated bore 323 for supporting the roller 330. The longitudinal direction of the elongated bore 323 corresponds at least substantially to the vertical direction, and the width of the elongated bore 323 corresponds to the diameter of the journal 331 of the roller 330. This allows the roller 330 to rotate and move in the vertical direction. Furthermore, as can be seen from... Figure 4 As can be seen more clearly in the image, a step 327 is preferably provided immediately adjacent to the elongated hole 323. This step can be used to assist in supporting the roller 330 to improve the support strength of the roller.

[0058] refer to Figure 4 In the first bracket, the recess 322 of the journal for the roller 370 is located above the elongated hole 323 of the journal 331 for the roller 330, relative to the vertical direction, which is advantageous for making full use of the space within the opening.

[0059] Figure 6 A second bracket 304 of the bracket assembly is shown, which has a protrusion 313 and a recess 312 on the side facing the first bracket 303. The protrusion 313 is configured to insert into the recess 322 of the first bracket 303, and the recess 312 is configured to receive the protrusion of the first bracket 303 having an elongated hole 323 and a step 327. The contours of the upper and lower sides of the protrusion 313 of the second bracket 304 match the contours of the upper and lower sides of the recess 322 of the first bracket 303. The top profile of the protrusion 313 of the second bracket 304 is preferably an arcuate cylindrical surface that matches the journal of the roller 370. In particular, the bottom profile of the recess 312 of the second bracket 304 matches the top profile of the protrusion of the first bracket 304, so that the protrusion 313 of the second bracket 304 can be at least substantially form-fitted into the recess 322 of the first bracket 303, and the protrusion of the first bracket 303 can be at least substantially form-fitted into the recess 312 of the second bracket 304.

[0060] Preferably, also refer to Figure 6The bottom of the recess 312 of the second bracket 304 has a baffle 312.1 on the side adjacent to the opening 305. A gap 312.2 is left between the baffle 312.1 and the lower side of the recess 312. The cross-section of the gap 312.2 at least substantially matches the cross-section of the top of the step 327 of the first bracket 303. In the installed state, the section 323.1 of the first bracket 303 with the protruding part of the elongated hole 323 can be located between the baffle 312.1 and the right side of the recess 312 of the second bracket 304. The top of the step 327 of the first bracket 303 is embedded in the gap 312.2 at the bottom of the recess 312 of the second bracket 304. The side of the baffle 312.1 facing the first bracket is aligned with the inner wall of the elongated hole 323 of the first bracket 303 closer to the second bracket. The distance between the vertical surface of step 327 and the side of the baffle 312.1 of the second bracket facing the first bracket corresponds to the width of the elongated hole 323, and the distance between the approximately horizontal surface of step 327 of the first bracket and the top surface of the baffle 312.1 of the second bracket corresponds to the length of the elongated hole 323. This prevents relative movement of the first bracket relative to the second bracket and expands the elongated hole for the journal 331 of the roller 330 to ensure sufficient support strength while simplifying assembly.

[0061] For example, it can also be found from Figure 6 As can be seen, a stop 319 is provided next to the notch 312 of the second support 304, extending from the inner wall of the second support 304. The stop 319 is configured such that when the liquid absorption unit is inserted into the opening, the outermost disc 333 of the roller can abut against the stop 319 through the notch 335 to restrict the rotation of the roller 330. (See also...) Figure 7 This causes the scraper 332 of the roller 330 to be in an inclined position, such that the longitudinal edge 336 of the scraper 332 that abuts against the liquid absorption layer is above another longitudinal edge.

[0062] Roller 330 and roller 370 can be arranged on one of the first bracket 303 and the second bracket 304, for example, on the first bracket 303, and stop 319 can be arranged on the other bracket, for example, on the second bracket 304.

[0063] In addition, see Figure 6 and Figure 7 The inner wall of the second bracket 304 is also provided with a rib 315 extending vertically. In the installed state, the rib is located below the roller to at least partially prevent the mop head introduced into the opening from tilting in the opening. Therefore, the rib 315 can cooperate with the roller 370 to guide the mop head in the opening, so that the mop head preferably moves up and down in the opening in the vertical direction.

[0064] The second support 304 is also provided with a nozzle 316 for spraying cleaning fluid, which is arranged above the scraper 332. The nozzle 316 can be integrated into the wall of the second support 304, that is, integrally constructed in the support assembly. For this purpose, the support assembly is preferably constructed with a passage C that communicates with at least one of the pumping unit P, the reservoir 301 and the nozzle 316. Figure 5 An exemplary illustration shows that a passage C is at least partially integrated into the second support 304, enabling the delivery of cleaning liquid from the reservoir 301 to the nozzle 316 via the passage. For this purpose, a seal 371 and a cover 372 may be provided for the passage (see...). Figure 3 ).exist Figure 6 and Figure 7 The image shows multiple nozzles 316 arranged in the transverse direction.

[0065] In addition, see, for example Figure 3 and Figure 4 A recess 328 is provided on the end side of the first section 320 of the first bracket 303, and the actuator 306 is rotatably held in the recess 328.

[0066] In the example shown, the actuator 306 is configured as a lever structure, having a connecting rod 341 housed in a recess 328. A pressure rod 343 is arranged at one end of the connecting rod 341, and a cam 344 is arranged at the other end. The pressure rod 343 and the cam 344 are non-rotatably connected via the connecting rod 341 arranged between them. The pressure rod 343 is arranged in an opening 305 and is configured to rotatably abut against the inclined surface 226 of the housing 221 of the mop head 20. The cam 344 is arranged outside the opening 305 and is configured to abut against the piston 360 of the pumping unit P. The length of the pressure rod 343 is configured such that when the mop head 20 is introduced into the opening 305, the pressure rod 343 can contact the inclined surface 226 of the housing of the mop head 20, and as the mop head 20 moves downward in the opening, it is driven to rotate by the inclined surface of the mop head 20, thereby driving the cam 344 to rotate via the connecting rod 341, thereby driving the pumping unit P, and in particular the piston 360 of the pumping unit P. Therefore, the pumping unit P can be actuated by the actuator 306 to spray the liquid contained in the cylinder through the nozzle 316. For this purpose, the nozzle 316 and the actuator 306 cooperating with the inclined surface 226 of the mop head housing are provided on both sides of the orifice 309 or opening 305, so that when the mop head is introduced into the orifice 309 or opening 305, the nozzle 316 and the actuator 306 are located on both sides of the mop head.

[0067] The aforementioned components of actuator 306 can be constructed individually and then connected together. Alternatively, actuator 306 can also be constructed as a single unit.

[0068] Here, the actuator 306 is directly and rotatably held in the recess 328. For this purpose, the profile of the bottom of the recess 328 matches the circumferential profile of the connecting rod 341 of the actuator 306; that is, the bottom of the recess 328 has a semi-circular cross-section whose radius corresponds to the radius of the connecting rod 341. See also... Figure 8 and Figure 9 The connecting rod 341 may be formed with a circumferential groove 342, and the recess 328 may be provided with a protrusion 329. The orientation of the protrusion 329 corresponds to the orientation of the cross-sectional profile of the recess 328 and can engage with the groove 342. See also Figure 10 The recess 328 has an arcuate protrusion 324 on its side away from the opening 305, i.e., the side facing the cam 344. The cam 344 has an arcuate recess 346 on its side facing the pressure rod 343. The arcuate protrusion 324 and the arcuate recess 346 are shaped to match each other, and the arcuate protrusion 324 can engage with the arcuate recess 346, allowing the actuator 306 to rotate relative to the recess 328. To form the arcuate recess 346, an arcuate protrusion 345 can be formed at a distance from the connecting rod 34 on the side of the cam 344 facing the pressure rod 343. The inner contour of the protrusion 345 is coaxial with the outer peripheral surface of the connecting rod 341 and only partially surrounds the connecting rod 341 in the circumferential direction. Preferably, the arcuate recess 346 can be configured to pass through the cam. The recess 328 and the actuator 306 are configured such that, in the assembled state, the actuator 306 can rotate within the recess 328 without axial displacement.

[0069] See in particular the illustrations shown. Figure 9 The cam 344 is also equipped with a pawl 347, which forms a stop to limit the initial position of the actuator 306 relative to the piston 360 of the pumping unit P. The pawl 347 is located at the part of the piston contact surface of the cam 344 that is closest to the cam rotation axis, and the pawl 347 is configured to hook onto the pin 359 located at the end of the piston 360 to limit an extreme position of the actuator 306.

[0070] See Figure 2 and Figure 3The pumping unit P, located outside the opening 305 at the first support 303, includes a cylinder 350, a piston 360, and a spring 358. The cylinder 350 can be screwed onto the first support 303, for example, via a screw. The piston 360 and spring 358 are housed within the cylinder 350, with the spring 358 positioned between the piston 360 and the bottom of the cylinder 350. When the piston is subjected to an external force and moves towards the bottom of the cylinder, the spring 358 is compressed; when the external force is removed, the spring 358 assists in the piston's return to its original position. A sealing portion, such as a sealing ring, is provided on the circumferential contact surface between the piston and the cylinder to prevent unintentional leakage of liquid below the piston. The cylinder 350 may have a bottom-side section 351 and an opening-side section 352. A connecting pipe 355 is constructed at the bottom-side section 351 for communication with the passage C of the nozzle 316 and the conduit 356 of the reservoir 301. A pair of longitudinal slots 353 are formed at the opening side section 352. The two ends of the pin 359, which is installed in the end through-hole 361 of the piston 360, can be accommodated in the corresponding slots 353. Therefore, the movement of the piston 360 in the cylinder 350 can be guided at least partially through the slots 353, and the axial position of the piston can be restricted if necessary. The pin 359 is preferably made of a wear-resistant material. The through-hole 361 at the piston end is spaced apart by a spacer 362, thus exposing the pin 359 in the spacer 362 and allowing the cam 344 to directly abut against the pin 359. Of course, in an example not shown, the pin 359 can be omitted; in this case, at least the section of the piston that contacts the cam should be constructed with high wear resistance. The cylinder block 350 also has a fan-shaped section 354 at the opening side section 352 to accommodate the cam 344. The internal space of the fan-shaped section 354 leads into the internal space of the cylinder block, which allows the cam 344 to swing into the internal space of the cylinder block.

[0071] exist Figure 14a The diagram shows the initial state of cam 344 relative to piston 360 of pumping unit P, wherein the pawl 347 of cam 344 is hooked onto the pin of piston 360, and cam 344 is housed in sector section 354 of cylinder block. In the initial position, lever 340 of actuator 306 is substantially horizontal.

[0072] exist Figure 14b The image shows the cam 344 completely removed from the sector section 354 of the cylinder block. It can be seen that, compared to... Figure 14a The piston 360 has moved downward in the vertical direction, thereby squeezing the liquid contained in the cylinder so that it can be ejected from the nozzle 316.

[0073] When the external force applied to the lever of actuator 306 is removed, the piston can return to its vertical position under the action of the spring 358 at its bottom, thereby establishing a negative pressure in the cylinder, allowing liquid to be drawn from the reservoir. Simultaneously, the upward-moving piston 360 drives the cam 344 to rotate back into the sector section 354 of the cylinder. Therefore, actuator 306 re-occupies its initial position relative to piston 360, as... Figure 14a As shown.

[0074] To facilitate fluid communication between the cylinder body, nozzle, and reservoir, a channel 318 may be constructed in the support assembly (see...). Figure 6 The channel 318 is connected to the cylinder body's connecting pipe 355 on one side, and has interfaces O1 and O2 respectively connected to the nozzle 316 and the reservoir 301 on the other side. One-way valves V1 and V2 are correspondingly assigned to these interfaces, and are respectively arranged in the channel connecting the pumping unit P and the reservoir 301 and the channel connecting the pumping unit P and the nozzle 316, so that the fluid passage between the connecting pipe 355 and the reservoir 301 or between the connecting pipe 355 and the nozzle 316 can be released as needed. Exemplarily, the valve core of the one-way valve can abut against the valve seat under the action of a spring, thereby blocking the fluid passage, and when the external force is greater than the spring's prestress, the valve core can be lifted from the valve seat, thereby releasing the fluid passage. Figure 22a , Figure 22b The example shows check valves V1 and V2 arranged vertically stacked.

[0075] To achieve controlled guidance of the liquid removed from the mop head, a funnel member 308 can be arranged inside the second sections 311, 321 of the first support 303 and the second support 304 of the support assembly. The funnel member 308 can, for example, snap onto at least one of the first support 303 and the second support 304, and the funnel member 308 is spaced apart from the mutually facing surfaces of the first support 303 and the second support 304 to form a flow channel. In this case, the funnel member 308 has a first open side 374 facing the opening 305 and a second open side 375 facing the bucket unit 40, wherein the cross-section of the first open side 374 is smaller than the cross-section of the second open side 375. The funnel component 308 also has a guide side 378, which overlaps with the scraper 332 in the stop position in a horizontal projection plane. This causes the upper edge 376 of the guide side 378 to extend beyond the lower edge of the scraper 332, so that liquid flowing from the scraper 332 can fall onto the guide side 378 of the funnel component 308 located below the scraper, and be guided through the guide side 378 into the bucket unit 40 below the covering unit 30, as shown below. Figure 16 As shown. Preferably, the guide side 378 is provided with a protruding baffle 379, so that liquid falling onto the funnel member 308 can only exit from the outlet 377 on its lower edge side.

[0076] The bucket unit 40 of the bucket assembly 3 may include an outer bucket 41 and an inner bucket 42 disposed at intervals within the outer bucket 41, thereby forming an interval region therebetween. In a horizontal projection plane, the guiding side surface 378 also overlaps with this interval region, that is, the lower edge 377 of the guiding side surface 378 is located within this interval region, so that the liquid falling onto the funnel member 308 can flow into the interval region. The inner bucket 42 is configured mainly for accommodating the mop head, and the interval region between the outer bucket 41 and the outer bucket 41 is configured for receiving the liquid extruded by the wiper 332 of the roller 330, thereby achieving the separation of the cleaned liquid absorption unit of the mop head from the extruded contaminated liquid.

[0077] Preferably, the upper edge 422 of the inner bucket 42 is lower than the upper edge of the outer bucket 41. This enables the liquid to overflow into the inner bucket when an excessive amount of liquid is accommodated in the interval region, preventing the liquid from flowing into the environment outside the bucket.

[0078] Preferably, a bulge 421 protruding from the bottom is provided at the bottom of the inner bucket 42. When the liquid absorption unit is inserted into the inner bucket 42, the end of the liquid absorption unit can rest on the bulge 421. This enables the mop head with the liquid absorption unit to be above the liquid level of the contaminated liquid accommodated in the inner bucket 42 through the bulge 421 when the inner bucket 42 inevitably falls into contaminated liquid, preventing the cleaned liquid absorption unit from being contaminated again.

[0079] Figures 15 to 18 The state of the cleaning assembly when the mop assembly 2 is inserted into the orifice 309 of the bucket assembly 3 in the downward vertical direction D is shown.

[0080] At this time, referring to the vertical direction, the wiper 332 of the roller 330 and the to-be-extruded surface of the liquid absorption unit enclose an obtuse angle α, which enables the liquid extruded by the wiper 332 to flow downward along the direction shown by the arrow G in Figure 16 、 Figure 18 and especially flow into the interval region between the inner bucket and the outer bucket. In Figure 18 the liquid absorption unit of the mop assembly 3, that is, the mop head 20, has an initial thickness T. In the stop position of the roller, the minimum distance in the direction transverse to the vertical direction between the edge of the wiper of the roller and the outer peripheral surface of the roller is A1, and the minimum distance in the direction transverse to the vertical direction between the outer peripheral surface of the disc of the roller and the outer peripheral surface of the roller is A2. It can be seen that A1 < T and A2 < T, that is, in the stop position, both the wiper and the disc of the roller are partially pressed into the liquid absorption layer 222 of the liquid absorption unit, and the roller abuts against the housing 221 of the mop head 20.

[0081] From Figure 17As can be seen, the pressure rod 343 of the actuator 340 is pressed down from the approximately horizontal position in the initial state to the deflected inclined position by the inclined surface 226 of the mop head 20, thereby causing the pumping unit P to discharge the cleaning liquid contained therein.

[0082] Figure 19 The image shows a mop head 20 fully inserted into the bucket unit 40, with its lower end resting on a protrusion 421. The protrusion 421 is configured to prevent the mop head 20 from directly contacting the bottom of the inner bucket.

[0083] Figures 20 to 21 The diagram shows the state of the cleaning assembly when the mop head 20 is pulled out of the bucket assembly 3 in the direction U. It can be seen that, compared to the state when the mop head 20 is inserted, due to the friction generated by the disc of the roller 330 being partially pressed into the liquid-absorbing layer, the roller is driven upward by the mop head 20 and moves upward in the narrow groove. Therefore, the outermost disc 333 can be lifted from the stop 319, allowing the roller to rotate counterclockwise, as shown in... Figure 21 As indicated by the arrow, this allows the scraper 332 to disengage from the liquid absorption layer 222, thereby reducing resistance when pulling the mop head 20 out of the bucket assembly 3. During this time, the roller 370 can remain in contact with the housing 221 of the mop head 20 to guide the mop head 20.

[0084] Figure 22a and Figure 22b The flow path of the liquid in the cleaning system is shown. Figure 22a Arrow R1 schematically illustrates the cleaning fluid flowing into the cylinder of pumping unit P, where the valve core of check valve V1 rises from its seat, releasing port O1, while check valve V2 remains closed, blocking port O2. Figure 22b The arrow R2 schematically illustrates the flow of cleaning liquid from the cylinder of the pumping unit P to the nozzle 316, wherein the valve core of the one-way valve V2 is lifted from the valve seat, releasing the port O2, while the one-way valve V1 remains closed, blocking the port O1.

[0085] In the aforementioned cleaning system, when the mop assembly 2 is inserted vertically into the opening 309 of the bucket assembly 3 and moves downward therein, the actuation structure in the form of a bevel 226 constructed on the housing of the mop head 20 of the mop assembly 2 can contact the pressure rod 343 of the actuator 306 and drive the pressure rod 343 to rotate. The pressure rod 343 drives the cam 344 to rotate, and the cam 344 presses the piston 360 of the pumping unit P downward, so that the cleaning liquid contained in the cylinder 350 can be sprayed through the open one-way valve assigned to the nozzle 316 onto the liquid absorption layer of the mop head 20. During this period, the downward-moving liquid absorption layer 222 of the mop assembly 2 drives the roller 330 to rotate, allowing the notched disc of the roller 330 to abut against the assigned stop 319. The scraper 332 of the roller 330 is pressed into the liquid absorption layer 222 and forms an obtuse angle with the portion of the liquid absorption layer 222 to be squeezed. Therefore, the scraper 332 of the roller 330 can scrape off dirt adhering to the surface of the liquid absorption layer 222 and squeeze out the liquid absorbed by the liquid absorption layer 222. The scraped dirt can be carried by the squeezed liquid along the inclined scraper 332 to the bucket unit located below the cover unit of the bucket assembly. That is, the inclined surface 226 can cooperate with the actuator 306 to drive the pumping unit P to spray the liquid stored in the reservoir 301 onto the liquid absorption layer 222 of the mop assembly 2 through the nozzle 316. This process is maintained until the mop head 20 is inserted into the bottom of the bucket, at which point the cam 344 and the piston move to their extreme positions. This completes one cleaning process.

[0086] As the mop assembly 2 moves vertically upwards from the opening 309 of the bucket assembly 3, the pressure rod 343 of the actuator 306 is no longer pressed by the actuation structure in the form of an inclined plane 226 constructed on the housing of the mop head 20 of the mop assembly 2. This allows the compressed spring 358 of the pumping unit P to begin to reset, the piston 360 moves upwards, and the cam 344 begins to rotate. This creates a negative pressure in the cylinder 350 of the pumping unit P, allowing the cleaning liquid stored in the reservoir 301 to enter the cylinder through the open one-way valve assigned to the reservoir 301, thereby refilling the cylinder with cleaning liquid. During this time, the roller 330 can be lifted from the stop position, allowing the scraper to separate from the liquid absorption unit, thereby reducing friction during the removal process. This completes one suction process.

[0087] The above process can be repeated until the cleaning system is completely cleaned.

[0088] It should be noted that although the rollers 370 used to guide the mop head housing were mentioned above, the mop head housing can also be guided directly through the inner wall of the opening in the bracket assembly; that is, the rollers are optional.

[0089] It should be noted that the features or combinations of features of the device according to the invention described above, as well as the features and combinations of features mentioned and / or shown only in the drawings, can be used not only in the corresponding combinations, but also in other combinations or individually, without departing from the scope of the invention.

[0090] The present invention has been described through the above embodiments; however, it should be understood that the above embodiments are for illustrative purposes only and are not intended to limit the present invention to the scope of the described embodiments. Those skilled in the art will understand that many more variations and modifications can be made based on the teachings of the present invention, and all such variations and modifications fall within the protection scope of the present invention.

Claims

1. A cleaning system (1), characterized in that, The cleaning system (1) includes: A mop assembly (2) includes a handle (10) and a mop head (20) rotatably attached to the handle (10). The mop head (20) includes a housing (221) and a liquid-absorbing layer (222) held in the housing (221). The housing (221) has an actuating structure (226) on its side opposite to the liquid-absorbing layer (222). A bucket assembly (3), the bucket assembly (3) including a bucket unit (40) and a cover unit (30) detachably arranged above the bucket unit (40), wherein, The covering unit (30) is configured with an opening (309) for inserting the mop assembly (2), and the covering unit (30) is provided with a nozzle (316) and an actuator (306) cooperating with the actuation structure (226) on both sides of the opening (309). The covering unit (30) further includes a pumping unit (P) configured to be in fluid communication with a reservoir (301) disposed at the barrel assembly (3) and actuated by the actuator (306). When the mop assembly (2) is inserted vertically into the opening (309) of the bucket assembly (3) and moves up and down therein, the actuation structure (226) can cooperate with the actuator (306) to drive the pumping unit (P) to spray the liquid stored in the reservoir (301) onto the liquid absorption layer (222) of the mop assembly (2) via the nozzle (316). Referring to the state in which the mop assembly (2) is in the bucket assembly (3), the actuation structure (226) is constructed as an inclined surface extending at an angle relative to the vertical direction; The actuator (306) is constructed as a lever structure, wherein the actuator (306) has a pressure rod (343) at one end and a cam (344) at the other end. The pressure rod (343) and the cam (344) are connected non-rotatably via a connecting rod (341) arranged between them. The pressure rod (343) is configured to rotatably abut against the inclined plane, and the cam (344) is configured to abut against the piston (360) of the pumping unit (P).

2. The cleaning system (1) according to claim 1, characterized in that, The covering unit (30) also includes a support assembly configured to hold at least one of the actuator (306), the pumping unit (P), and the storage unit (301).

3. The cleaning system (1) according to claim 2, characterized in that, The actuator (306) is rotatably held at the support assembly, wherein the support assembly is provided with a recess (328) for receiving a connecting rod (341) of the actuator (306), the side of the recess (328) facing the cam (344) having an arcuate protrusion (324) configured to engage with a corresponding arcuate recess (346) provided at the cam (344).

4. The cleaning system (1) according to claim 3, characterized in that, The recess (328) is provided with a protrusion (329), and the connecting rod (341) is formed with a groove (342), and the protrusion (329) can be engaged in the groove (342).

5. The cleaning system (1) according to claim 3, characterized in that, The actuator (306) is provided with a stop to limit the initial position of the actuator (306) relative to the piston (360) of the pumping unit (P).

6. The cleaning system (1) according to claim 3, characterized in that, The actuator (306) is directly and rotatably held at the support assembly.

7. The cleaning system (1) according to claim 5, characterized in that, The stop structure is a claw hook (347), which is located at the part of the piston contact surface of the cam (344) that is closest to the cam rotation axis. The claw hook (347) is configured to hook onto the pin (359) located at the end of the piston (360).

8. The cleaning system (1) according to claim 2, characterized in that, The nozzle (316) is integrally constructed in the support assembly.

9. The cleaning system (1) according to claim 8, characterized in that, The support assembly is configured with a passage (C) that communicates with at least one of the pumping unit (P), the reservoir (301), and the nozzle (316).

10. The cleaning system (1) according to claim 9, characterized in that, A one-way valve is provided, which is arranged in the passage connecting the pumping unit (P) and the reservoir (301) and / or the passage connecting the pumping unit (P) and the nozzle (316).

11. The cleaning system (1) according to any one of claims 1 to 10, characterized in that, The actuator (306) is constructed as a single unit.

12. The cleaning system (1) according to any one of claims 1 to 10, characterized in that, The mop head (20) is constructed in the shape of a flat rectangle.

Images