Vacuum cleaner floor brush and wet and dry dual-purpose vacuum cleaner

Abstract

The present invention provides a vacuum cleaner floor brush and a wet and dry dual-purpose vacuum cleaner, wherein the vacuum cleaner floor brush comprises a floor brush body and a water tank detachably mounted on the floor brush body; further comprising a connection cover and a truncation structure movably mounted on the shell; the connection cover has a first position and a second position away from and closing the first interface and the second interface during movement; the truncation structure has a third position and a fourth position for truncation and conduction of the negative pressure chamber between the first interface and the second interface during movement; the water tank is provided with a driving structure for driving the connection cover and the truncation structure to move to the first position and the third position respectively when the floor brush body cooperates with the water tank; the floor brush body is provided with a driving structure for driving the connection cover and the truncation structure to move to the second position and the fourth position respectively when the water tank is separated from the floor brush body. The switch between the dry and wet cleaning functions is set in this way, and there is no need to replace a special floor brush, and two functions can be realized through a set of vacuum cleaner floor brushes, which saves costs and occupies little space.

Description

Technical Field

[0001] The invention relates to the technical field of cleaning tools, and in particular to a vacuum cleaner floor brush and a wet and dry dual-purpose vacuum cleaner. Background Art

[0002] At present, wet and dry integrated vacuum cleaners are becoming more and more popular among users in the market. For example, as disclosed in the patent publication number EP3162262A2, the traditional wet and dry integrated vacuum cleaner has the water tank designed on the push rod. Affected by the overall weight of the water tank, the user will feel tired after cleaning for a period of time, and the user experience is poor.

[0003] In view of this, the prior art provides a wet floor brush with a water tank, which transfers the weight of the water tank to the ground, so that users can use it easily, reducing the fatigue caused by the cleaning work. When the user does not need the wet cleaning function but needs the dry function to clean up the garbage, the wet floor brush needs to be disassembled and then replaced with a dry floor brush for cleaning. Such a design has certain defects. First, it is necessary to keep and clean two sets of dry and wet floor brushes, which increases the cost and occupies a large space. Second, replacing the floor brush is usually cumbersome, which affects the user experience. Summary of the invention

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the defects in the prior art that switching between dry and wet cleaning functions of a vacuum cleaner requires replacement of a special floor brush, which leads to increased cost, large space occupation and cumbersome operation; thereby providing a vacuum cleaner floor brush and a dry and wet dual-purpose vacuum cleaner.

[0005] A vacuum cleaner floor brush provided by the present invention comprises a floor brush body and a water tank detachably mounted on the floor brush body; the water tank comprises a sewage tank and a water suction interface and an air outlet interface connected to the sewage tank; the floor brush body comprises a shell and a roller brush rod installed on the shell, the shell having a negative pressure chamber acting on the roller brush rod and a first interface and a second interface connected to the negative pressure chamber; the first interface close to the roller brush rod is connected to the water suction interface in cooperation with each other, and the second interface is connected to the air outlet interface in cooperation with each other;

[0006] The floor brush body also includes a connecting cover and a truncation structure movably mounted on the shell; the connecting cover has a first position and a second position away from and closing the first interface and the second interface during movement; the truncation structure has a third position and a fourth position that cuts off and conducts the negative pressure chamber between the first interface and the second interface during movement; the water tank is provided with a first driving structure and a second driving structure that drive the connecting cover and the truncation structure to move to the first position and the third position respectively when the floor brush body is matched with the water tank; the floor brush body is provided with a third driving structure and a fourth driving structure that drive the connecting cover and the truncation structure to move to the second position and the fourth position respectively when the water tank is separated from the floor brush body.

[0007] Optionally, the connection cover includes a first connection cover and a second connection cover corresponding to the first interface and the second interface; the first drive structure and the third drive structure are each provided with two drive ends corresponding to the first connection cover and the second connection cover.

[0008] Optionally, the connecting cover is a baffle which is rotatably mounted on the shell through a rotating shaft at one end, and an elastic member is provided between the baffle and the shell; under the action of the elastic member, the baffle is in the second position; and the first driving structure drives the baffle to rotate around the axis to the first position to overcome the elastic force.

[0009] Optionally, the first driving structure is a rib structure provided on the water tank; the rib structure has a driving end abutting against the connecting cover.

[0010] Optionally, the negative pressure chamber has a first side and a second side facing each other, and the baffle is rotatably mounted on the first side via a rotating shaft. When moving to the first position, the end of the baffle abuts against the second side, and the baffle cuts off the negative pressure chamber between the first interface and the second interface; the cutting structure is the same structure as the connecting cover; and the first driving structure and the third driving structure are the same structure.

[0011] Optionally, a sealing structure cooperating with the end of the baffle is provided on the second side.

[0012] Optionally, the two rotating shafts are arranged in a region between the first interface and the second interface, and ends of the two connecting covers are both against the second side surface when the two connecting covers move to the first position.

[0013] Optionally, the sealing structure is fixedly mounted on the second side surface, and both ends are respectively sealed with the ends of the two baffles.

[0014] Optionally, the elastic member is a torsion spring sleeved on the rotating shaft; the two torsion springs corresponding to the two baffles are connected to form an integrated structure.

[0015] The present invention also provides a wet and dry dual-purpose vacuum cleaner, comprising any one of the vacuum cleaner floor brushes described above.

[0016] The technical solution of the present invention has the following advantages:

[0017] The present invention provides a vacuum cleaner floor brush, in which the water tank is detachably mounted on the floor brush body, and the weight of the water tank is transferred to the ground, so that users can use it easily, reducing the fatigue caused by cleaning work between users, and greatly improving the user experience. When the water tank cooperates with the floor brush body, the connecting cover moves to the first position, the cut-off structure moves to the third position, the negative pressure chamber is converted to a mode of flowing through the water tank, and the vacuum cleaner floor brush is in a wet cleaning mode; when the water tank is removed, the connecting cover on the floor brush shell moves to the second position to form a sealing effect, and the cut-off structure is in the fourth position to conduct the negative pressure chamber. At this time, a channel is formed inside the floor brush shell, which is a dry mode. With this arrangement, the switching between dry and wet cleaning functions does not require the replacement of a special floor brush, and both functions can be achieved through a set of vacuum cleaner floor brushes, which saves costs, takes up little space, and is easy to store. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a schematic diagram of assembling a floor brush of a vacuum cleaner provided in a first embodiment of the present invention;

[0020] Figure 2 for Figure 1 A cross-sectional view of the floor brush body shown in a dry cleaning state;

[0021] Figure 3 for Figure 2 A partial enlarged view of

[0022] Figure 4 for Figure 1 A cross-sectional view of the water tank shown;

[0023] Figure 5 for Figure 1 The cross-sectional view of the vacuuming brush shown is in a wet cleaning state.

[0024] Description of reference numerals:

[0025] 1-water tank, 2-floor brush body, 21-shell, 22-roller brush rod, 3-negative pressure chamber, 4-first interface, 5-first baffle, 6-second baffle, 7-second interface, 8-second torsion spring, 9-sealing structure, 10-first torsion spring, 11-water absorption interface, 12-rib structure, 13-air outlet interface. DETAILED DESCRIPTION

[0026] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] Figures 1 to 5 A vacuum cleaner floor brush provided by the present invention is shown. The vacuum cleaner floor brush includes a floor brush body 2 and a water tank 1 detachably mounted on the floor brush body 2. The water tank 1 includes a sewage tank 1 and a water suction interface 11 and an air outlet interface 13 connected to the sewage tank 1. Sewage enters the sewage tank 1 from the water suction interface 11, and after water vapor separation, the sewage is stored in the sewage tank 1, and the gas is discharged from the air outlet. Obviously, the water tank 1 also includes a clean water tank, and the floor brush body 2 also includes a pipeline structure connected to the clean water tank, and a water pump assembly that sprays clean water in the clean water tank to a set position.

[0028] The floor brush body 2 includes a shell 21 and a roller brush rod 22 installed on the shell 21. The shell 21 has a negative pressure chamber 3 acting on the roller brush rod 22. The negative pressure pump realizes the dust collection function through the negative pressure chamber 3 and the roller brush rod 22. The shell 21 is provided with a first interface 4 and a second interface 7 connected to the negative pressure chamber 3. The first interface 4 is arranged close to the roller brush rod 22 and is connected to the water absorption interface 11. The second interface 7 is connected to the air outlet interface 13.

[0029] The floor brush body 2 also includes a first baffle 5 and a second baffle 6 rotatably mounted on the shell 21 through a rotating shaft. Specifically, one end of the first baffle 5 is rotatably mounted on the shell 21 through a first rotating shaft located at the edge of the first interface 4. The first rotating shaft sleeve is provided with a first torsion spring 10 whose two ends act on the shell 21 and the first baffle 5 respectively. Under the action of the first torsion spring 10, the first baffle 5 seals the first interface 4. One end of the second baffle 6 is rotatably mounted on the shell 21 through a second rotating shaft located at the edge of the second interface 7. The second rotating shaft sleeve is provided with a second torsion spring 8 whose two ends act on the shell 21 and the second baffle 6 respectively. Under the action of the second torsion spring 8, the second baffle 6 seals the second interface 7. The first torsion spring 10 and the second torsion spring 8 are connected to the supporting feet matching the shell 21 as an integrated structure.

[0030] The first rotation axis and the second rotation axis are located in the area between the first interface 4 and the second interface 7. Under the action of the elastic member, the first baffle 5 and the second baffle 6 rotate in opposite directions. When the first baffle 5 seals the first interface 4 and the second baffle 6 seals the second interface 7, the position of the first baffle 5 and the second baffle 6 is called the first position.

[0031] A rib structure 12 is provided on the water tank 1 corresponding to the first baffle plate 5 and the second baffle plate 6, and the rib structure 12 has two driving ends that abut against the first baffle plate 5 and the second baffle plate 6. When the water tank 1 is matched with the shell 21, the two driving ends respectively drive the first baffle plate 5 and the second baffle plate 6 to overcome the elastic force and rotate around the axis to a position away from the first interface 4 and the second interface 7, which is called the second position. The negative pressure chamber 3 has a first side surface and a second side surface opposite to each other, and the first rotation axis and the second rotation axis are respectively on the first side surface. When the first baffle plate 5 and the second baffle plate 6 move to the second position, the ends abut against the second side surface, thereby cutting off the negative pressure chamber 3 between the first interface 4 and the second interface 7.

[0032] The second side of the negative pressure chamber 3 is provided with a sealing structure 9 that cooperates with the first baffle plate 5 and the second baffle plate 6. The two ends of the sealing structure 9 are respectively sealed against the ends of the first baffle plate 5 and the second baffle plate 6. Obviously, the sealing structure 9 can be respectively provided corresponding to the first baffle plate 5 and the second baffle plate 6.

[0033] In this embodiment, the water tank 1 can be detachably mounted on the floor brush body 2, transferring the weight of the water tank 1 to the ground, allowing users to use it easily, reducing fatigue caused by cleaning work between users, and greatly improving user experience. When the water tank 1 cooperates with the floor brush body 2, the first baffle 5 and the second baffle 6 move to the first position, the first interface 4 is connected to the water suction interface 11, the second interface 7 is connected to the air suction interface, and the negative pressure chamber 3 between the first interface 4 and the second interface 7 is cut off. Figure 5 As shown, the negative pressure chamber 3 is converted into a path flowing through the water tank 1, and the vacuum cleaner floor brush is in wet cleaning mode.

[0034] When the water tank 1 is disassembled, please refer to Figure 2 and Figure 3 , the first baffle 5 and the second baffle 6 on the floor brush housing 21 rotate to the second position under the action of the first torsion spring 10 and the second torsion spring 8, forming a closed effect, and connecting the negative pressure chamber 3. At this time, a channel is formed inside the floor brush housing 21, which is a dry mode. With this arrangement, the dry and wet cleaning functions can be switched without replacing a special floor brush. A set of vacuum cleaner floor brushes can achieve both functions, saving costs, occupying less space, and being easy to store.

[0035] As another alternative embodiment, a cut-off structure for cutting off and conducting the negative pressure chamber 3 between the first interface 4 and the second interface 7 is separately provided. The floor brush body 2 also includes a cut-off structure movably mounted on the housing 21; the cut-off structure has a third position and a fourth position for cutting off and conducting the negative pressure chamber 3 between the first interface 4 and the second interface 7 during movement; a second driving structure for driving the cut-off structure to move to the third position when the floor brush body 2 cooperates with the water tank 1 is provided on the water tank 1; and a fourth driving structure for driving the cut-off structure to move to the fourth position when the water tank 1 is separated from the floor brush body 2 is provided on the floor brush body 2.

[0036] As another alternative embodiment, a connection cover is provided corresponding to the first interface 4 and the second interface 7 .

[0037] The present invention also provides a wet and dry vacuum cleaner, which includes the above-mentioned vacuum cleaner floor brush and a handheld component for the vacuum cleaner floor brush, wherein the handheld component has a negative pressure motor acting on the negative pressure chamber 3 .

[0038] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. A vacuum cleaner floor brush, characterized in that: The invention comprises a floor brush body (2) and a water tank (1) detachably mounted on the floor brush body (2); the water tank (1) comprises a sewage tank (1) and a water suction interface (11) and an air outlet interface (13) connected to the sewage tank (1); the floor brush body (2) comprises a shell (21) and a roller brush rod (22) mounted on the shell (21); the shell (21) has a negative pressure chamber (3) acting on the roller brush rod (22) and a first interface (4) and a second interface connected to the negative pressure chamber (3); the first interface (4) close to the roller brush rod (22) is connected to the water suction interface (11), and the second interface (7) is connected to the air outlet interface (13); the water tank (1) also comprises a clean water tank, and the floor brush body (2) also comprises a pipeline structure connected to the clean water tank, and a water pump assembly for spraying clean water in the clean water tank to a set position; The floor brush body (2) further comprises a connecting cover and a truncation structure movably mounted on the shell (21); the connecting cover has a first position and a second position in the process of movement, which are away from and close the first interface (4) and the second interface (7); the truncation structure has a third position and a fourth position in the process of movement, which are truncation and conduction of the negative pressure chamber (3) between the first interface (4) and the second interface (7); the water tank (1) is provided with a first driving structure and a second driving structure for driving the connecting cover and the truncation structure to move to the first position and the third position respectively when the floor brush body (2) is matched with the water tank (1); the floor brush body (2) is provided with a third driving structure and a fourth driving structure for driving the connecting cover and the truncation structure to move to the second position and the fourth position respectively when the water tank (1) is separated from the floor brush body (2).

2. The vacuum cleaner floor brush according to claim 1, characterized in that: The connection cover comprises a first connection cover and a second connection cover arranged corresponding to the first interface (4) and the second interface (7); the first drive structure and the third drive structure are both arranged with two drive ends corresponding to the first connection cover and the second connection cover.

3. The vacuum cleaner floor brush according to claim 1 or 2, characterized in that: The connecting cover is a baffle plate with one end rotatably mounted on the shell (21) via a rotating shaft, and an elastic member is provided between the baffle plate and the shell (21); under the action of the elastic member, the baffle plate is in the second position; and the first driving structure drives the baffle plate to rotate around the shaft to the first position to overcome the elastic force.

4. The vacuum cleaner floor brush according to claim 1, characterized in that: The first driving structure is a rib structure (12) arranged on the water tank (1); the rib structure (12) has a driving end that abuts against the connecting cover.

5. The vacuum cleaner floor brush according to claim 3, characterized in that: The negative pressure chamber (3) has a first side surface and a second side surface that are opposite to each other. The baffle is rotatably mounted on the first side surface via a rotating shaft. When the baffle moves to the first position, the end of the baffle abuts against the second side surface. The baffle cuts off the negative pressure chamber (3) between the first interface (4) and the second interface (7). The cutoff structure is the same structure as the connecting cover. The first driving structure and the third driving structure are the same structure.

6. The vacuum cleaner floor brush according to claim 5, characterized in that: The second side surface is provided with a sealing structure (9) that cooperates with the end of the baffle.

7. The vacuum cleaner floor brush according to claim 6, characterized in that: The two rotating shafts are arranged in the area between the first interface (4) and the second interface (7), and the ends of the two connecting covers are both against the second side surface when they move to the first position.

8. The vacuum cleaner floor brush according to claim 7, characterized in that: The sealing structure (9) is fixedly mounted on the second side surface, and its two ends are respectively sealed with the ends of the two baffles.

9. The vacuum cleaner floor brush according to claim 3, characterized in that: The elastic member is a torsion spring sleeved on the rotating shaft; the two torsion springs corresponding to the two baffles are connected to form an integrated structure.

10. A wet and dry vacuum cleaner, characterized in that: The utility model comprises the vacuum cleaner floor brush according to any one of claims 1 to 9.

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