Surface cleaning head for a vacuum cleaner

Abstract

The present invention discloses a surface cleaning head for a vacuum cleaner, including a floor brush, which includes a housing having an inlet and an outlet and a suction channel extending from the inlet to the outlet. A roll brush cavity communicating with the suction channel is defined inside the housing, and at least one roll brush rotatable about a first horizontal axis is provided in the roll brush cavity; a cleaning device, detachably installed at the rear of the floor brush, the cleaning device includes a substrate and a disposable cleaning sheet removably attached to the substrate; the liquid container in the prior art is omitted, and a disposable dry cleaning sheet or a wet cleaning sheet pre-impregnated with a cleaning solution is used to replace the previously reusable cleaning cloth to cooperate with the floor brush with a roll brush for work, which not only reduces the steps for the user to wash the cleaning cloth; moreover, since the liquid container is cancelled, it will not cause excessive water to remain on the surface to be cleaned, and the roll brush will not send water into the suction channel, thereby ensuring the safety of the surface cleaning head when used in cooperation with a vacuum cleaner.

Description

Technical Field

[0001] The present invention relates to the technical field of cleaning equipment, and particularly to a surface cleaning head for a vacuum cleaner. Background Art

[0002] In daily life, people often use a vacuum cleaner to perform a dust suction operation to remove dust particles on the surface to be cleaned. After the suction operation, on the surface such as a ceramic tile or a wooden floor, there are still dirty marks that are difficult to be sucked away by the vacuum suction, such as oil stains and water stains. People usually use a mop to wash the surface to be cleaned again, and the cleaning efficiency is not very high.

[0003] In order to be able to perform dust suction and mopping at the same time, so as to improve the cleaning efficiency. Chinese Patent Invention Publication No. CN106455880A discloses a nozzle for a floor cleaning device suitable for wet cleaning and dry cleaning. The nozzle includes an air flow inlet at the front end of the nozzle, a rear wheel at the rear end of the nozzle, and a detachable wet cleaning device. The detachable wet cleaning device lifts the rear end of the nozzle when it is installed below the rear wheel of the nozzle. Among them, the detachable wet cleaning device is arranged to be provided with a removable mopping substrate, and among them, the detachable wet cleaning device has a liquid container for containing and wetting the liquid of the removable mopping substrate.

[0004] However, for the above-mentioned disclosed nozzle, by arranging a liquid container on the mopping substrate, on the one hand, it forces the user to push the entire weight of the liquid container for the moving operation. On the other hand, when the liquid in the liquid container is arranged on the mopping substrate, it is necessary to strictly control the water output. If the water volume is too large, it is easy to leave a large pool of water stains on the surface to be cleaned. If the water volume is too small, the mopping effect cannot be achieved, and the structure is relatively complex; and components such as a roller brush in the suction nozzle are likely to pick up liquid particles on the surface to be cleaned together with dust particles and send them into the suction channel, so that the vacuum suction motor is eroded by the dirty liquid and its service life is reduced or even scrapped in advance. Finally, after the mop is used, it is easy to be contaminated with dirt. It is necessary to wash the mop and then install it on the mopping substrate again to continue using, and the efficiency is not very high. If disposable cleaning paper is used, the water flow will soak through the disposable cleaning paper, and the mopping effect is not ideal. Summary of the Invention

[0005] In order to solve the above technical problems, the purpose of the present invention is to provide a surface cleaning head for a vacuum cleaner with a simplified structure, more convenient operation and safer use.

[0006] In order to achieve the above object of the invention, the present invention adopts the following technical solutions:

[0007] A surface cleaning head for a vacuum cleaner, comprising:

[0008] Floor brush, comprising a housing having an inlet and an outlet, and a suction channel extending from the inlet to the outlet, wherein a rotatable brush chamber communicating with the suction channel is defined inside the housing, and at least one rotatable brush is disposed in the rotatable brush chamber and is rotatable about a first horizontal axis.

[0009] Cleaning device, removably mounted at the rear of the floor brush, the cleaning device comprising a base plate and a disposable cleaning sheet removably attached to the base plate; wherein the disposable cleaning sheet is a wet cleaning sheet or a dry cleaning sheet pre-impregnated with a solution.

[0010] In the above technical solution, preferably, the floor brush includes at least one rear wheel located at the rear, and the rear wheel is supported above the base plate when the cleaning device is mounted on the floor brush.

[0011] In the above technical solution, preferably, a first rotating body capable of rotating about a second horizontal axis and a second rotating body mounted on the first rotating body and capable of rotating about a vertical axis are provided at the rear of the floor brush, and the rear wheel is mounted on the first rotating body.

[0012] In the above technical solution, preferably, the suction channel includes a flexible tube passing through the first rotating body and the second rotating body, and a part of the flexible tube is attached to the upper surface of the base plate when the cleaning device is mounted on the floor brush.

[0013] In the above technical solution, preferably, the rear wheel is supported at the middle and rear position of the base plate when the cleaning device is mounted on the floor brush.

[0014] In the above technical solution, preferably, the floor brush has a pair of rear wheels, and the base plate has a pair of receiving grooves corresponding to the pair of rear wheels, and the pair of rear wheels are defined in the corresponding receiving grooves when the cleaning device is mounted on the floor brush.

[0015] In the above technical solution, preferably, a magnetic attraction assembly for fixing the floor brush and the cleaning device together is provided between the floor brush and the cleaning device.

[0016] In the above technical solution, preferably, the housing has a front side surface, a rear side surface, and a first side surface and a second side surface between the front side surface and the rear side surface, and the ratio of the distance between the front side surface and the rear side surface to the distance of the base plate in the front-rear direction is:-.

[0017] In the above technical solution, preferably, a holding mechanism suitable for releasably holding the disposable cleaning sheet on the base plate is provided on the cleaning device.

[0018] In the above technical solution, preferably, the holding mechanism includes a clamping member hinged at one end to the substrate, and the clamping member is an integral structure.

[0019] The present invention omits the liquid container in the prior art, and uses a disposable dry cleaning sheet or a wet cleaning sheet pre-impregnated with a cleaning solution to replace the previously reusable cleaning cloth to cooperate with a floor brush with a rotary brush for work. It not only reduces the steps for the user to clean the reusable cleaning cloth; moreover, since the liquid container is eliminated, excessive water will not remain on the surface to be cleaned, and the rotary brush will not send water into the suction channel, thus ensuring the safety of the surface cleaning head when used in conjunction with a vacuum cleaner. Brief Description of the Drawings

[0020] Figure 1 is a three-dimensional schematic diagram of the present invention;

[0021] Figure 2 is a schematic structural diagram of the rotary brush exposed after the housing of the floor brush part of the present invention is opened;

[0022] Figure 3 is a three-dimensional schematic diagram of the cleaning device of the present invention (the clamping member is opened from the substrate);

[0023] Figure 4 is Figure 3 a partial enlarged schematic diagram at position A in

[0024] Figure 5 is an exploded three-dimensional schematic diagram of the cleaning device of the present invention;

[0025] Figure 6 is a three-dimensional schematic diagram of the cleaning device of the present invention clamping a disposable cleaning cloth;

[0026] Wherein: 100, surface cleaning head;

[0027] 1, floor brush; 11, housing; 111, bracket; 112, front side; 113, rear side; 114, first side surface; 115, second side surface; 12, rotary brush cavity; 13, rotary brush; 14, inlet; 15, rotary connection head; 151, first rotating body; 152, second rotating body; 16, outlet; 17, suction channel; 171, flexible tube; 18, rear wheel;

[0028] 2. Cleaning device; 21. Substrate; 211. Top surface; 2111. Front surface portion; 2112. Rear surface portion; 2113. Groove; 2114. Storage groove; 2115. Boss; 212. Bottom surface; 22. Holding mechanism; 221. Clamping member; 2211. First side portion; 2212. Second side portion; 22121. Protrusion; 2213. Front portion; 2214. Rear portion; 222. Locking member; 2221. Bump;

[0029] 30. Disposable cleaning sheet. Detailed implementation manners

[0030] To describe in detail the technical content, structural features, achieved objectives and effects of the invention, the following will be described in detail in conjunction with embodiments and with reference to the drawings.

[0031] The surface cleaning head of the present invention is mainly used for a vacuum cleaner, which can be an upright push-type vacuum cleaner or a horizontal vacuum cleaner.

[0032] Figures 1-2 The surface cleaning head 100 is shown.

[0033] As Figure 1 shown, the surface cleaning head 100 includes a floor brush 1 and a cleaning device 2. The floor brush 1 can be removably attached to the vacuum cleaner, particularly a handheld vacuum cleaner, via components such as a rigid tube. The cleaning device 2 can be detachably attached to the rear of the floor brush 1 to allow the user to selectively attach the cleaning device 2. For example, when a single vacuuming cannot meet the cleaning task, such as cleaning sticky dirt such as stains and oil stains, the user can further supplement the cleaning of the surface after vacuuming by attaching the cleaning device 2, thereby realizing the function of vacuuming and mopping the floor at the same time and improving the cleaning effect of the surface to be cleaned.

[0034] As Figure 2As shown, the floor brush 1 has a housing 11, and an inner part of the housing 11 defines a roller brush cavity 12. Inside the roller brush cavity 12, a roller brush 13 that can rotate around a horizontal axis X1 is installed. At the bottom of the housing 11, an inlet 14 is provided, and a rotary connector 15 is installed at the rear of the housing 11. The rotary connector 15 is composed of a first rotating body 151 and a second rotating body 152. The first rotating body 151 is rotatably installed at the rear of the housing 11 around a horizontal axis X2, and the second rotating body 152 is rotatably installed above the first rotating body 151 around a vertical axis Y. At the top of the second rotating body 152, there is an outlet 16, and a suction channel 17 is arranged between the inlet 14 and the outlet 16. A part of the suction channel 17 is composed of a flexible tube 171 that penetrates through the first rotating body 151 and the second rotating body 152. At the rear of the housing 11, a pair of brackets 111 are integrally provided, and a rear wheel 18 is installed at each outer end of the pair of brackets 111. The first rotating body 151 is rotatably installed on the opposite inner ends of the pair of brackets 111.

[0035] Figures 3-6 The cleaning device 2 is shown.

[0036] As Figure 3 、 Figure 5 shown, the cleaning device 2 includes a substrate 21 and a holding mechanism 22. The substrate 21 has a top surface 211 and a bottom surface 212 opposite to the top surface 211. The top surface 211 has a front surface portion 2111 and a rear surface portion 2112 arranged oppositely, and grooves 2113 are respectively provided at the front surface portion 2111 and the rear surface portion 2112; the bottom surface 212 is generally flat, and the substrate 21 is configured to be able to attach a disposable cleaning sheet 30. The holding mechanism 22 is suitable for releasably holding the disposable cleaning sheet 30 on the substrate 21. The holding mechanism 22 includes a clamping member 221 and a locking member 222 provided on the top surface 211. The clamping member 221 is a rectangular ring structure, which is an integral design formed by bending a wire; specifically: it has a first side portion 2211 and a second side portion 2212 spaced apart from each other, and a front portion 2213 and a rear portion 2214 extending between the first side portion 2211 and the second side portion 2212. Among them, the first side portion 2211 is hinged to the top surface 211, and the rest of the clamping member 221 except the first side portion 2211 is adapted to the groove 2113, and it can be snapped into or out of the groove 2113. Combining Figure 4 shown, the locking member 222 includes a pair of protrusions 2221. The pair of protrusions 2221 are provided on the opposite inner sidewalls of the groove 2113, and they can be designed on the same sidewall of the groove 2113 as shown in the figure, or on the opposite two inner sidewalls of the groove 2113. In this way, the second side portion 2212 can be releasably engaged with the top surface 211 by cooperating with the pair of protrusions 2221.

[0037] The clamping member 221 can move from the first position to the second position. As Figure 6 shown, in the first position of the clamping member 221, the front portion 2213 and the rear portion 2214 of the clamping member 221 can respectively clamp the corresponding portions of the disposable cleaning sheet 30 to the front surface portion 2111 and the rear surface portion 2112 of the top surface 211. Combining with Figure 4 shown, the bump 2221 has an outer surface, and the outer surface of the bump 2221 is configured to be able to frictionally abut against the second side portion 2212 in the first position to lock the clamping member 221 on the top surface 211. Again, as Figure 3 shown, in the second position of the clamping member 221, the clamping member 221 is released, and the disposable cleaning sheet 30 can be released from the substrate 21.

[0038] In addition, for convenient unlocking, at least part of the outer surface of the bump 2221 is an arc surface; when the clamping member 221 moves from the first position to the second position, the second side portion 2212 slides along the arc surface.

[0039] To facilitate the user to unlock the clamping member 221, the middle part of the second side portion 2212 has a protruding portion 22121 that arches upward, and the user can apply a force to the protruding portion 22121 to overcome the frictional engagement between the second side portion 2212 and the outer surface of the bump 2221 to achieve unlocking.

[0040] In other embodiments, the clamping member is not limited to an integral ring-shaped clip, and it can also be an open ring with a notch in the second side portion. In addition, the locking method of the second side portion to the substrate is not limited to this, that is, the structure of the locking member is not limited to the structure of the bump, and it can also be the structure of a clamping jaw or a latch to lock or release the clamping member. It can also be directly locked by setting a lock button, and any mechanism that can fix the entire disposable cleaning sheet on the substrate with a single locking member can be used.

[0041] For the disposable cleaning sheet 30, after performing one or more cleaning tasks, the user can remove and discard the cleaning sheet. The disposable cleaning sheet 30 in this example can be a disposable dry cleaning sheet or a wet cleaning sheet pre-impregnated with a cleaning solution. For the dry cleaning sheet, it can be a cleaning sheet with an electrostatic dust removal effect and has properties such as oil absorption, water absorption, and non-breaking when wet. For the wet cleaning sheet, the cleaning solution pre-impregnating it can also contain detergents, disinfectants, fragrances, etc.

[0042] The holding mechanism 22 in this example can quickly clamp and press the opposite side edges of the disposable cleaning cloth 30 on the substrate 21 by using the clamping member 221 and is fixed by a pair of bumps 2221, so as to realize the rapid assembly of the disposable cleaning cloth 30, which is suitable for the rapid assembly of disposable cleaning paper or cleaning mops.

[0043] For another example Figure 3 As shown, a receiving groove 2114 is provided on the top surface 211 of the substrate 21. The receiving groove 2114 is configured such that when the cleaning device 2 is attached to the floor brush 1, at least a part of a pair of rear wheels 18 is inserted into the receiving groove 2114. A boss 2115 adjacent to the rear part of the receiving groove 2114 is provided on the top surface 211 of the substrate 21. When the pair of rear wheels 18 of the floor brush 1 are located in the receiving groove 2114, the boss 2115 abuts against a part of the outer surface of the rear wheels 18 from the rear side, and the pair of rear wheels 18 cannot move backward. In this way, it is possible to avoid the situation where the pair of rear wheels 18 slide out of the receiving groove 2114 when a backward pulling force is applied to the floor brush 1 during use by the user.

[0044] In order to further fix the cleaning device 2 and the floor brush 1 when the cleaning device 2 is attached to the rear part of the floor brush 1 and prevent loosening, a fixing mechanism should also be provided between the cleaning device 2 and the floor brush 1. In the embodiment shown in the attached drawings of this case, no detailed description is given for this. The fixing mechanism applicable after the attachment of the two can be a common lock pin and lock groove type fixing mechanism, or a magnetic attraction mechanism that uses magnetism for strong attraction. For example, a magnetic attraction component that fixes the two together is provided between the floor brush 1 and the cleaning device 2.

[0045] For another example Figure 1 、 Figure 2 As shown, the housing 11 has a front side surface 112, a rear side surface 113, and a first side surface 114 and a second side surface 115 between the front side surface 112 and the rear side surface 113. The ratio of the distance L1 between the front side surface 112 and the rear side surface 113 to the distance L2 of the substrate 21 in the front-rear direction is 1:1 - 3, and preferably, the front-rear width of the substrate 21 of the cleaning device 2 is designed to be relatively larger than the front-rear width of the housing 11. In this way, the contact area of the cleaning device 2 with the surface to be cleaned can be increased to improve the mopping effect of the disposable cleaning sheet.

[0046] When the cleaning device 2 with the disposable cleaning sheet 30 is installed at the rear of the floor brush 1, the two can be further fixed by a fixing mechanism. At this time, the disposable cleaning sheet 30 is clamped between the substrate 21 by the clamping member 221, and a pair of rear wheels 18 on the floor brush 1 are stuck in a pair of receiving grooves 2114. Move the entire cleaning head 100 back and forth. The front floor brush 1 can perform a dust suction operation by being combined with a vacuum cleaner. The roller brush 13 in the floor brush 1 continuously stirs the dust on the surface to be cleaned and sends the stirred dirt into the suction channel 17 together. The cleaning device 2 located at the rear of the floor brush 1 moves on the surface to be cleaned accordingly, and the disposable cleaning sheet 30 thereon can perform secondary supplementary cleaning on small particles, a small amount of dirty liquid and other dirt that the floor brush 1 has not picked up, so as to achieve a thorough cleaning of the surface to be cleaned. When the disposable cleaning sheet 30 on the cleaning device 2 needs to be replaced, release the cleaning device 2 from the floor brush 1 and open the clamping member 221. Shake the substrate 21 until the dirty disposable cleaning sheet 30 comes off the substrate 21 or directly tear the disposable cleaning sheet 30 to install a new disposable cleaning sheet on the substrate 21 again.

[0047] The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose is to enable those who are familiar with this technology to understand the content of the present invention and implement it accordingly, and it cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims

1. A surface cleaning head for a vacuum cleaner, characterized in that, Comprising: A floor brush (1), comprising a housing (11) having an inlet (14) and an outlet (16), and a suction channel (17) extending from the inlet (14) to the outlet (16), the inlet (14) being located at the bottom of the housing (11), a roller brush chamber (12) communicating with the suction channel (17) being defined inside the housing (11), at least one roller brush (13) rotatable about a first horizontal axis being provided in the roller brush chamber (12), and the floor brush (1) having a pair of rear wheels (18); A cleaning device (2), detachably mounted at the rear of the floor brush (1), the cleaning device (2) comprising a base plate (21) and a disposable cleaning sheet removably attached to the base plate (21); wherein, the disposable cleaning sheet is a wet cleaning sheet or a dry cleaning sheet pre-impregnated with a solution; a pair of receiving grooves (2114) corresponding to the pair of rear wheels (18) are provided on the base plate (21), and when the cleaning device (2) is mounted on the floor brush (1), the pair of rear wheels (18) are defined in the corresponding receiving grooves (2114), and a pair of bosses (2115) adjacent to the rear of the pair of receiving grooves (2114) are provided on the top surface (211) of the base plate (21); when the pair of rear wheels (18) are located in the pair of receiving grooves (2114), each of the bosses (2115) abuts against a part of the outer surface of the corresponding rear wheel (18) from the rear side.

2. The surface cleaning head for a vacuum cleaner according to claim 1, characterized in that: A first rotating body (151) capable of rotating about a second horizontal axis and a second rotating body (152) mounted on the first rotating body (151) and capable of rotating about a vertical axis are provided at the rear of the floor brush (1), and the rear wheel (18) is mounted on the first rotating body (151).

3. The surface cleaning head for a vacuum cleaner according to claim 2, characterized in that: The suction channel (17) comprises a flexible tube passing through the first rotating body (151) and the second rotating body (152), and when the cleaning device (2) is mounted on the floor brush (1), a part of the flexible tube is attached to the upper surface of the base plate (21).

4. The surface cleaning head for a vacuum cleaner according to claim 1, wherein: When the cleaning device (2) is mounted on the floor brush (1), the rear wheel (18) is supported at the middle and rear position of the base plate (21).

5. The surface cleaning head for a vacuum cleaner according to claim 1, wherein: A magnetic attraction assembly for fixing the floor brush (1) and the cleaning device (2) together is provided between the floor brush (1) and the cleaning device (2).

6. The surface cleaning head for a vacuum cleaner according to claim 1, characterized in that: The housing (11) has a front side surface (112), a rear side surface (113), and a first side surface (114) and a second side surface (115) between the front side surface (112) and the rear side surface (113), and the ratio of the distance between the front side surface (112) and the rear side surface (113) to the distance of the base plate (21) in the front-rear direction is 1:1 - 3.

7. The surface cleaning head for a vacuum cleaner according to claim 1, characterized in that: A holding mechanism (22) suitable for releasably holding the disposable cleaning sheet on the base plate (21) is provided on the cleaning device (2).

8. The surface cleaning head for a vacuum cleaner according to claim 7, characterized in that: The described holding mechanism (22) includes a clamping member (221) whose one end is hinged to the substrate (21), and the clamping member (221) is of an integral structure.

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