Surface cleaning head for a vacuum cleaning device

Abstract

The present invention discloses a surface cleaning head for a vacuum cleaning device, belonging to the technical field of cleaning devices. It solves the problem that in the prior art, when a vacuum cleaner with a water tank mopping function performs vacuuming and mopping operations, the bottom cover of the water tank is unevenly stressed and prone to warping, causing the mop to be unable to closely fit the ground to be cleaned and affecting the mopping effect. The surface cleaning head in this case is provided with a pressing mechanism, with part of the pressing mechanism located on the rotatable connector and part on the mop substrate. When the user pushes the vacuum cleaning device to move on the ground to be cleaned, the external force applied by the user on the surface cleaning head is transmitted through the pressing mechanism, part to the rotatable connector and part to the mop substrate, enabling the mop on the mop substrate to closely fit the ground to be cleaned and improving the cleaning effect of the surface cleaning head.

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 cleaning device. Background Art

[0002] In daily life, a vacuum cleaner is usually used to suck dust and other particulate matters on the ground to be cleaned, and is particularly suitable for cleaning rough ground, such as cleaning carpets and wooden floors indoors. For the cleaning of smooth ground, such as floor tiles and ceramic tiles, generally, a cleaning mop is used to scrub the smooth ground 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] To solve the above technical problems, a Chinese patent application with publication number CN107625493A discloses a vacuum cleaner with a water tank mopping function. The vacuum cleaner includes a vacuum cleaner body 1, a floor brush 2, and a water tank; one end of the floor brush 2 is correspondingly arranged on the vacuum cleaner body 1, and the other end is correspondingly arranged on the water tank. The water tank includes a first water tank body 3, a water guide connecting pipe 4, a second water tank body 5, and a water tank bottom cover 6. A mop cloth 13 is correspondingly arranged below the water tank bottom cover 6. Combining with its attached Figure 1-2 description, the rear part of the floor brush 2 is tilted up and supported on the front edge of the water tank bottom cover 6. When the user pushes the vacuum cleaner to move on the ground to be cleaned and performs the vacuuming and mopping operation, since the external force applied by the user on the vacuum cleaner is transmitted to the floor brush, and the floor brush is supported on the front edge of the water tank bottom cover 6, in this way, the external force applied by the user on the floor brush is mainly concentrated on the front edge of the water tank bottom cover 6, and the rear part of the water tank bottom cover 6 is basically not affected by the external force, resulting in uneven force on the water tank bottom cover 6, and it is easy to occur that the rear part of the water tank bottom cover 6 is tilted up, so that the fit between the mop cloth and the surface to be cleaned is not tight enough, affecting the mopping and cleaning effect of the vacuum cleaner. Summary of the Invention

[0004] To solve the above technical problems, the purpose of the present invention is to provide a surface cleaning head for a vacuum cleaning device that can press the mop base plate against the ground to be cleaned and improve the cleaning effect of the cleaning head.

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

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

[0007] A cleaning head body, including a cleaning head housing with a dust suction port at the bottom, a rotary joint 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, and the rear wheel is located behind the dust suction port;

[0008] The wet mopping device is detachably installed on the cleaning head body. The wet mopping device includes a mop base plate with a mop that can be installed at the lower part, and a water supply tank fixed on the upper side of the mop base plate and used for supplying water to the mop.

[0009] A pressing mechanism is used to press the mop base plate against the ground to be cleaned. Part of the pressing mechanism is located on the rotating connector, and part is located on the mop base plate.

[0010] In the above technical solution, preferably, the rotating connector includes a first rotating joint hinged on the cleaning head housing and capable of rotating back and forth around an X-axis, and a second rotating joint hinged to the first rotating joint and capable of rotating left and right around a Y-axis. The pressing mechanism includes a pressing rod fixed on the first rotating joint and an elastic support member abutted and supported between the pressing rod and the mop base plate.

[0011] In the above technical solution, preferably, the elastic support member is a compression spring.

[0012] In the above technical solution, preferably, the surface cleaning head further includes a locking mechanism for locking the wet mopping device on the cleaning head body, and an unlocking member provided on the mop base plate for the user to operate to release the locked state of the locking mechanism. Part of the locking mechanism is located on the cleaning head housing, and part is located on the mop base plate.

[0013] In the above technical solution, preferably, the locking mechanism includes a locking tongue movably arranged on the mop base plate, a return spring arranged on the mop base plate and abutted against the rear end of the locking tongue, and a locking groove arranged on the cleaning head housing. A locking hook is arranged at the front end of the locking tongue and is matched with the locking groove. The unlocking member is a pedal. One end of the pedal is hinged on the mop base plate, and the other end is in transmission with the locking tongue, so that the pedal can push the locking tongue backward to disengage the locking hook from the locking groove.

[0014] Compared with the prior art, the present invention has the following beneficial effects: By setting a pressing mechanism in the surface cleaning head of this case, with part of the pressing mechanism located on the rotating connector and part on the mop base plate, when the user moves the vacuum cleaner device on the ground to be cleaned, the external force applied by the user on the surface cleaning head is transmitted to the rotating connector through part of the pressing mechanism and to the mop base plate through the other part, so that the mop on the mop base plate can be closely attached to the ground to be cleaned, improving the cleaning effect of the surface cleaning head. Description of the Drawings

[0015] Figure 1 It is a perspective view of the surface cleaning head of the present invention;

[0016] Figure 2 The top view of the cleaning head body of the surface cleaning head of the present invention;

[0017] Figure 3 The three-dimensional view of the wet mopping device of the surface cleaning head of the present invention;

[0018] Figure 4 The structural schematic diagram of the wet mopping device of the surface cleaning head of the present invention to be assembled onto the cleaning head body;

[0019] Figure 5 The structural schematic diagram of the cooperation between the locking tongue and the unlocking member of the wet mopping device of the surface cleaning head of the present invention (when the unlocking member is in the natural state);

[0020] Figure 6 The structural schematic diagram of the cooperation between the locking tongue and the unlocking member of the wet mopping device of the surface cleaning head of the present invention (when the unlocking member is in the triggered state);

[0021] Figure 7 is Figure 5 The structural schematic diagram of the locking tongue shown in

[0022] Figure 8 is Figure 5 The structural schematic diagram of the unlocking member shown in

[0023] Figure 9 The structural schematic diagram of the pressing mechanism of the surface cleaning head of the present invention;

[0024] Figure 10 The structural schematic diagram of the pressing mechanism of the surface cleaning head of the present invention (when the pressing mechanism presses the mop substrate onto the ground to be cleaned);

[0025] 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; 3. Pressing mechanism; 31. Pressing rod; 32. Elastic support member; 4. Locking mechanism; 41. Locking tongue; 411. Lock hook; 42. Return spring; 43. Lock groove; 5. Unlocking member. Detailed implementation mode

[0026] 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 accompanying drawings. Among them, in this embodiment, the "front", "rear", "left", "right", "upper", and "lower" respectively correspond to Figure 1The positional relationships of each part of the surface cleaning head shown in the figure correspond one by one. In this embodiment, the "vacuum cleaning device" can be an upright vacuum cleaner, a handheld vacuum cleaner, or other vacuum cleaning devices that utilize the vacuum cleaning principle.

[0027] As Figure 1 shown, the surface cleaning head of this case includes a cleaning head body 1 and a wet mopping device 2.

[0028] As Figure 2 shown, the cleaning head body 1 includes a cleaning head housing 11, a rotary joint 12 installed at the rear of the cleaning head housing 11, and a pair of rear wheels 13 installed 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.

[0029] 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 install a mop. Water outlet holes communicating with the water supply tank 22 are provided on the mop base plate 21. The water supply tank 22 can supply water flow to the mop base plate 21 to moisten the mop. 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 are provided on the connecting portion 212. Combining Figure 4 , a pair of positioning holes 112 matching 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 installed on the cleaning head housing 11 by means of plug-in connection. In other embodiments, in order to detachably install the wet mopping device 2 on the cleaning head body 1, the matching manner between the mop base plate 21 and the cleaning head housing 11 can also be magnetic attraction type, that is, magnetic parts are respectively provided on the mop base plate 21 and the cleaning head housing 11; in addition, the matching manner between the mop base plate 21 and the cleaning head housing 11 can also be snap type or hook-and-loop type, such as matching blocks and slots. Combining Figure 1When 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, and the dust suction port 111 at the bottom of the cleaning head shell 11 is close to the ground to be cleaned, so the dust suction effect is better. The connecting portion 212 is located below the rotating connecting head 12, so that the cooperation between the cleaning head body 1 and the wet mopping device 2 is more compact and does not occupy space. In this example, when the mop is installed, the shape of the mop can be a regular shape, such as a square, which is completely located directly behind the rear wheel, or it can be similar to the shape of the mop base plate, and part of the mop extends to the outer peripheral side of the rear wheel. After the mop is installed at the lower part of the mop base plate 21, the pair of rear wheels 13 and the mop are supported on the ground to be cleaned. When the user pushes the surface cleaning head to perform vacuuming and mopping operations on the ground to be cleaned, the mop is located directly behind the rear wheel 13, and the cleaning area of the mop covers the moving path of the rear wheel 13, which can erase the movement traces left by the rear wheel 13 on the ground to be cleaned.

[0030] like Figure 2 , 5 As shown in , 6, the surface cleaning head also includes a locking mechanism 4 for locking the wet mopping device 2 on the cleaning head body 1, and an unlocking member 5 arranged on the mop base plate 21 and operated by the user to release the locking state of the locking mechanism 4. The locking mechanism 4 is partially located on the cleaning head shell 11 and partially located on the mop base plate 21.

[0031] Specific, combined Figure 7 , 8 The locking mechanism 4 includes a locking tongue 41 movably arranged on the mop base plate 21, a return spring 42 arranged on the mop base plate 21 and in tight contact with the rear end of the locking tongue 41, and a locking groove 43 arranged on the cleaning head housing 11. The front end of the locking tongue 41 is provided with a locking hook 411 that matches the locking groove 43. In this example, the unlocking member 5 is a pedal, one end of the pedal is hinged on the mop base plate 21, and the other end is transmission-arranged with the locking tongue 41, so that the pedal can push the locking tongue 41 toward the rear side to disengage the locking hook 411 from the locking groove 43.

[0032] like Figure 9 , 10 As shown, when the wet mopping device 2 is assembled on the cleaning head body 1, in order to make the mop at the bottom of the mop base plate 21 fit tightly on the ground to be cleaned and improve the mopping effect of the surface cleaning head 1, the surface cleaning head 1 also includes a pressing mechanism 3 for pressing the mop base plate 21 on the ground to be cleaned, wherein the pressing mechanism 3 is partially located on the rotating connecting head 12 and partially located on the mop base plate 21.

[0033] Specifically, the pressing mechanism 3 includes a pressing rod 31 fixed on the first rotating joint 121 and an elastic support member 32 tightly supported between the pressing rod 31 and the mop base plate 21. In this example, the elastic support member 32 is a compression spring. In other embodiments, the pressing mechanism 3 may also be a structure in which the pressing rod and the pressing block are press-fitted, that is, by arranging a pressing rod on the rotating connector and a pressing block cooperating with the pressing rod on the mop base plate, and pressing the pressing rod on the pressing block to press the mop base plate tightly on the ground to be cleaned. To ensure the air 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.

[0034] In this way, when the user pushes the surface cleaning head 1 to vacuum and mop the ground to be cleaned, the angle between the first rotating joint 121 and the ground to be cleaned can be made smaller by operating components such as a push rod (not shown in the figure), so that the pressing rod 31 presses against the compression spring and transmits the external force to the mop base plate 21, and finally the mop base plate 21 is pressed tightly on the ground to be cleaned, improving the mopping effect of the surface cleaning head.

[0035] The above embodiments are only used to illustrate the technical concept and characteristics 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 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 cleaning device, 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 rotary joint (12) installed at the rear of the cleaning head housing (11), and rear wheels (13) for supporting the cleaning head body (1) on the ground to be cleaned. The rear wheels (13) are located behind the dust suction port (111). The rotary joint (12) includes a first rotary joint (121) hinged to the cleaning head housing (11) and capable of rotating back and forth about an X-axis, and a second rotary joint (122) hinged to the first rotary joint (121) and capable of rotating left and right about a Y-axis; A wet mopping device (2), detachably installed on the cleaning head body (1). The wet mopping device (2) includes a mop base plate (21) with a mop installable at the lower part, and a water supply tank (22) fixed on the upper side of the mop base plate (21) and used for supplying water to the mop; and A pressing mechanism (3) for pressing the mop base plate (21) against the ground to be cleaned. The pressing mechanism (3) is partially located on the rotary joint (12) and partially located on the mop base plate (21). The pressing mechanism (3) includes a pressing rod (31) fixed on the first rotary joint (121), and an elastic support member (32) tightly supported between the pressing rod (31) and the mop base plate (21). The elastic support member (32) is a compression spring. When an external force acts on the first rotary joint (121) to make the angle between the first rotary joint (121) and the ground to be cleaned smaller, the pressing rod (31) presses against the compression spring and transmits the external force to the mop base plate (21); The surface cleaning head further includes a locking mechanism (4) for locking the wet mopping device (2) on the cleaning head body (1), and an unlocking member (5) provided on the mop base plate (21) for the user to operate to release the locked state of the locking mechanism (4). The locking mechanism (4) is partially located on the cleaning head housing (11) and partially located on the mop base plate (21).

2. The surface cleaning head for a vacuum cleaning device according to claim 1, characterized in that: The locking mechanism (4) includes a locking tongue (41) movably arranged on the mop base plate (21), a return spring (42) provided on the mop base plate (21) and in abutting contact with the rear end of the locking tongue (41), and a locking groove (43) provided on the cleaning head housing (11). A locking hook (411) cooperating with the locking groove (43) is provided at the front end of the locking tongue (41). The unlocking member (5) is a pedal. One end of the pedal is hinged to the mop base plate (21), and the other end is in transmission connection with the locking tongue (41), so that the pedal can push the locking tongue (41) backward to disengage the locking hook (411) from the locking groove (43).

Images