Surface cleaning head for a vacuum cleaner

Abstract

The present invention discloses a surface cleaning head for a vacuum cleaner, belonging to the technical field of cleaning equipment, and solving the defect that the suction effect and the mopping effect are both unsatisfactory when the nozzle of the floor cleaning equipment applicable to wet cleaning and dry cleaning installs the wet cleaning equipment by raising the rear end of the nozzle; the surface cleaning head in this case can removably install a wet mopping device at the rear end of the cleaning head housing, and can adapt to the cleaning operations of different cleaning floors. When the wet mopping device is installed on the cleaning head housing and the mop is installed on the scrubbing substrate, both the rear wheels and the mop are supported on the ground to be cleaned and the mop is located behind the rear wheels. In this way, there is no need to raise the rear wheels, the dust inlet is almost close to the ground to be cleaned, and the suction force at the dust inlet is relatively concentrated, enabling the surface cleaning head to have a good suction effect, and the mop erases the moving traces of the rear wheels, improving the mopping effect of the surface cleaning head on the ground to be cleaned.

Description

Technical Field

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

[0002] In daily life, vacuum cleaners are usually used to suck dust and other particulate matters on the ground to be cleaned, and are particularly suitable for cleaning rough floors, such as cleaning carpets and wooden floors indoors. For the cleaning of smooth floors, such as floor tiles and ceramic tiles, generally, a cleaning mop is used, and the smooth floor is scrubbed with a wet mop cloth to remove the stains on its surface. However, such a cleaning method inevitably requires the user to replace the cleaning tool multiple times to complete the cleaning operation of the surface to be cleaned, and the operation is relatively cumbersome.

[0003] Chinese invention patent with publication number CN106455880B discloses a floor cleaning device, and specifically discloses a nozzle of 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, and wherein the detachable wet cleaning device has a liquid container for containing liquid for wetting the removable mopping substrate. The nozzle installs the wet cleaning device by raising the rear end of the nozzle, so as to scrub the surface to be cleaned. In this way, a spacing is formed between the air flow inlet of the nozzle and the surface to be cleaned, which easily causes the suction force to be dispersed, and some larger particulate matters are not easily sucked in, thereby reducing the dust suction effect. In addition, when the rear end is lifted, the scraper is also lifted, and a spacing is formed between the scraper and the ground to be cleaned, which easily causes the particulate matters in the dust to pass through the spacing between the scraper and the ground and flow to one side of the mopping substrate, resulting in the mop cloth at the bottom of the mopping substrate sticking to the particulate matters, becoming dirtier and more difficult to clean, thereby reducing the mopping effect of the mop cloth. Summary of the Invention

[0004] 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 good dust suction and scrubbing effects.

[0005] In order to achieve the above object of the invention, the present invention adopts the following technical solutions:

[0006] A surface cleaning head for a vacuum cleaner, comprising:

[0007] A cleaning head body, including a cleaning head housing with a dust suction port at the bottom, a rotating connection head installed at the rear of the cleaning head housing, and a rear wheel for supporting the cleaning head body on the ground to be cleaned, wherein the rear wheel is located behind the dust suction port;

[0008] The wet mopping device is detachably mounted on the cleaning head body. The wet mopping device includes a mop substrate capable of mounting a mop at the lower part, a water supply tank fixed on the upper side of the mop substrate and used for supplying water to the mop. At least part of the mop substrate is located behind the rear wheel; when the mop is mounted at the lower part of the mop substrate, both the rear wheel and the mop are supported on the ground to be cleaned, and part of the mop is located directly behind the rear wheel.

[0009] In the above technical solution, preferably, a pair of notches are provided on the mop substrate, and the cleaning head body includes a pair of the rear wheels, and each rear wheel is located at each corresponding notch.

[0010] In the above technical solution, preferably, the mop substrate has a connecting portion located between the pair of notches, and the connecting portion is located below the rotating connector and is connected to the cleaning head housing.

[0011] In the above technical solution, preferably, the mop substrate is detachably mounted at the rear part of the cleaning head housing by a plug-in manner.

[0012] In the above technical solution, preferably, a positioning pin is fixed on the mop substrate, and a positioning hole matched with the positioning pin is provided on the cleaning head housing.

[0013] In the above technical solution, preferably, the positioning pin on the mop substrate extends in the up-down direction.

[0014] In the above technical solution, preferably, the surface cleaning head for a vacuum cleaner further includes a pressing mechanism for pressing the mop substrate against the ground to be cleaned, and part of the pressing mechanism is located on the rotating connector and part is located on the mop substrate.

[0015] In the above technical solution, preferably, at least part of the connecting portion is located below the cleaning head housing. When the mop is mounted at the lower part of the mop substrate, a gap of 1-3 mm is formed between the lower surface of the cleaning head housing and the ground to be cleaned.

[0016] The present invention has the following beneficial effects compared with the prior art: The surface cleaning head of this case can be removably installed with a wet mopping device at the rear end of the cleaning head housing, which can adapt to the cleaning operations of different cleaning floors. And when the wet mopping device is installed on the cleaning head housing and the mop is installed on the scrubbing substrate, both the rear wheels and the mop are supported on the floor to be cleaned and the mop is located behind the rear wheels. In this way, without raising the rear wheels, the dust inlet is almost close to the floor to be cleaned, and the suction force at the dust inlet is relatively concentrated, enabling the surface cleaning head to have a good dust suction effect. The mop erases the moving traces of the rear wheels, improving the mopping effect of the surface cleaning head on the floor to be cleaned. Description of the Drawings

[0017] Figure 1 is a perspective view of the surface cleaning head of the present invention;

[0018] Figure 2 is a top view of the cleaning head body of the surface cleaning head of the present invention;

[0019] Figure 3 is a perspective view of the wet mopping device of the surface cleaning head of the present invention;

[0020] Figure 4 is a structural diagram of the wet mopping device of the present invention about to be assembled onto the cleaning head body;

[0021] Figure 5 is a structural diagram of the present invention with the mopping device assembled on the cleaning head body;

[0022] Wherein: 1. Cleaning head body; 11. Cleaning head housing; 111. Dust suction port; 112. Positioning hole; 12. Rotating connection head; 121. First rotating joint; 122. Second rotating joint; 13. Rear wheel; 2. Wet mopping device; 21. Mop substrate; 211. Notch; 212. Connection part; 213. Positioning pin; 22. Water supply tank. Detailed Description of the Invention

[0023] 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 the embodiments and with reference to the drawings. Among them, the "front", "rear", "left", "right", "up" and "down" described in this embodiment respectively correspond one by one to the Figure 1 respective position relationships of the surface cleaning head shown in, and the "vacuum cleaner" described in this embodiment can be an upright vacuum cleaner or a handheld vacuum cleaner.

[0024] As Figure 1 shown, the surface cleaning head of this case includes a cleaning head body 1 and a wet mopping device 2 detachably connected to the cleaning head body 1.

[0025] Combined with Figure 2, the cleaning head body 1 includes a cleaning head housing 11, a rotary joint 12 rotatably mounted at the rear of the cleaning head housing 11 in the front-rear direction, and a pair of rear wheels 13 mounted at the rear of the cleaning head housing 11 and used to support the cleaning head housing 11 on the ground to be cleaned. A dust suction port 111 is provided at the bottom of the cleaning head housing 11. The rotary joint 12 includes a first rotary joint 121 hinged to the rear of the cleaning head housing 11 and a second rotary joint 122 hinged to the first rotary joint 121. The first rotary joint 121 can rotate about an X-axis in the front-rear direction, and the second rotary joint 122 can rotate about a Y-axis in the left-right direction.

[0026] As Figure 3 shown, the wet mopping device 2 includes a mop base plate 21 and a water supply tank 22 fixed to the upper side of the mop base plate 21. The lower part of the mop base plate 21 is used to mount a mop. Water outlet holes communicating with the water supply tank 22 are provided on the mop base plate 21, and the water supply tank 22 can supply water flow to the mop base plate 21 to moisten the mop. Specifically, a pair of notches 211 are provided on the mop base plate 21. The mop base plate 21 has a connecting portion 212 located between the two notches 211. A pair of positioning pins 213 extending in the up-down direction are provided on the connecting portion 212. Combining Figure 4 , a pair of positioning holes 112 mating with the pair of positioning pins 213 are provided on the cleaning head housing 11. In this way, the mop base plate 21 can be detachably mounted on the cleaning head housing 11 by means of plugging. In other embodiments, in order to detachably mount the wet mopping device 2 on the cleaning head body 1, the mating manner between the mop base plate 21 and the cleaning head housing 11 can also be magnetic attraction, that is, mating magnetic members are respectively provided on the mop base plate 21 and the cleaning head housing 11; in addition, the mating manner between the mop base plate 21 and the cleaning head housing 11 can also be snap-fit or hook-and-loop fastener type, such as mating blocks, slots, etc. In other embodiments of the present invention, the wet mopping device 2 and the cleaning head housing 11 can also be detachably connected together in the form of a hook.

[0027] In a preferred embodiment of the present invention, the surface cleaning head further includes a pressing mechanism for pressing the mop base plate against the ground to be cleaned. At the same time, in order to facilitate the user to adjust the angle of the vacuum cleaner connecting pipe during operation and change the magnitude of the force applied to the mop base plate, part of the pressing mechanism of the present invention is provided on the rotary joint and part is provided on the mop base plate. In this way, when the user holds the vacuum cleaner and presses downward, the vacuum cleaner connecting pipe rotates backward relative to the cleaning head housing 11, and at the same time, the rotary joint presses backward on the mop base plate.

[0028] As Figure 4 , 5As shown, when the wet mopping device 2 is installed on the cleaning head body 1, a pair of rear wheels 13 are located at a pair of notches 211 of the mop base plate 21. In order to ensure the intake of the suction port 111, at least part of the connecting portion 212 is located below the cleaning head housing 11, so that a gap of 1-3 mm is formed between the lower surface of the cleaning head housing 11 and the ground to be cleaned, and the suction effect is better. Combined with Figure 1 , the connecting portion 212 is located below the rotating connector 12, making the cooperation between the cleaning head body 1 and the wet mopping device 2 more compact and not occupying space. In this example, when installing the mop, the shape of the mop can be a regular shape, such as a square, which is entirely located directly behind the rear wheels, or similar to the shape of the mop base plate, and part of the mop extends to the outer peripheral side of the rear wheels.

[0029] After the mop is installed on the lower part of the mop base plate 21, the pair of rear wheels 13 and the mop are both supported on the ground to be cleaned. When the user pushes the surface cleaning head to perform the operation of sucking dust and mopping the ground to be cleaned, the mop is located directly behind the rear wheels 13, and the cleaning area of the mop covers the moving path of the rear wheels 13, and can wipe off the moving traces left by the rear wheels 13 on the ground to be cleaned.

[0030] The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose is to enable those skilled in the art 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 cleaning head body (1), including a cleaning head housing (11) with a dust suction port (111) provided at the bottom, a rotatable connection head (12) mounted at the rear of the cleaning head housing (11), and a pair of rear wheels (13) for supporting the cleaning head body (1) on the ground to be cleaned, the pair of rear wheels (13) being located at the rear side of the dust suction port (111); A wet mopping device (2), detachably mounted on the cleaning head body (1), the wet mopping device (2) including a mop substrate (21) capable of mounting a mop at the lower part, a water supply tank (22) fixed on the upper side of the mop substrate (21) and used for supplying water to the mop, a pair of notches (211) provided on the mop substrate (21), and a connecting portion (212) located between the pair of notches (211), at least part of the mop substrate (21) being located behind the pair of rear wheels (13), each of the rear wheels (13) being located at each corresponding notch (211), the connecting portion (212) being located below the rotatable connection head (12), at least part of the connecting portion (212) being located below the cleaning head housing (11) and detachably connected to the cleaning head housing (11); when the mop is mounted on the lower part of the mop substrate (21), the pair of rear wheels (13) and the mop are both supported on the ground to be cleaned, and part of the mop is located directly behind the rear wheels (13).

2. The surface cleaning head for a vacuum cleaner according to claim 1, characterized in that: The mop substrate (21) is detachably mounted at the rear of the cleaning head housing (11) by a plug-in manner.

3. The surface cleaning head for a vacuum cleaner according to claim 2, wherein: A positioning pin (213) is fixed on the mop substrate (21), and a positioning hole (112) matching the positioning pin (213) is formed on the cleaning head housing (11).

4. The surface cleaning head for a vacuum cleaner according to claim 3, wherein: The positioning pin (213) on the mop substrate (21) extends in the vertical direction.

5. The surface cleaning head for a vacuum cleaner according to claim 1, characterized in that: It further includes a pressing mechanism, the pressing mechanism being used for pressing the mop substrate against the ground to be cleaned, and part of the pressing mechanism is located on the rotatable connection head and part is located on the mop substrate.

6. The surface cleaning head for a vacuum cleaner according to claim 1, wherein: When the mop is mounted on the lower part of the mop substrate (21), a gap of 1 - 3 mm is formed between the lower surface of the cleaning head housing (11) and the ground to be cleaned.

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