Floor brush module for cleaning machine and cleaning machine

Abstract

According to the floor brush module for the cleaning machine and the cleaning machine, a dust suction opening is formed in the bottom of a shell, the shell is further provided with an inlet, a flow guide channel is formed between the inlet and the dust suction opening, and at least two brush pieces are arranged at the bottom of the shell and located on a flowing path of fluid in the flow guide channel. A water flow channel is further formed in the brush piece, the first end of the brush piece is rotatably connected to the bottom of the shell, so that the second end of the brush piece can swing relative to the shell, the flow guide channel can be opened when the brush piece swings to the first use state, and large particles can be smoothly collected by the flow guide channel; due to the fact that water can be directly supplied to the surface to be cleaned through the water flow channel in the brush piece, the scraping action can be synchronously completed while the brush piece rubs the surface to be cleaned, hard stains attached to the surface to be cleaned can be directly soaked and softened through cleaning water, and the cleaning effect is further improved.

Description

Technical Field

[0001] The invention relates to the field of household cleaning tools, and in particular to a floor brush module for a cleaning machine and a cleaning machine. Background Art

[0002] A cleaning machine is a relatively common portable cleaning device for household use. It first appeared in the form of a vacuum cleaner and can only be used in dry environments. In order to meet the needs of use in more environments, especially in wet environments, products such as floor scrubbers have been developed. Most existing floor scrubbers use a front roller brush structure. By setting a roller brush that can rotate relative to the casing on the front side of the casing, the area covered by the roller brush can be swept and cleaned, which is very convenient. However, a floor scrubber with a roller brush structure can easily cause hair to be entangled on the roller brush after cleaning. At the same time, the roller brush is placed in front of the suction port, which is not conducive to the collection of large particles of residue.

[0003] In order to avoid many problems such as hair entanglement, the applicant's prior application disclosed a cleaning machine with a roller brushless structure, and its patent application number is CN202122959279.4 (authorization announcement number is CN216776859U). By arranging a disc brush in the negative pressure chamber on the front side of the suction port, hair entanglement can be avoided to a great extent, and the gaps left between the disc brushes can allow large particles to enter the negative pressure interval, which is convenient for collecting dirt in different forms.

[0004] Although the above cleaning machines have solved the problem of hair entanglement to a certain extent and increased the amount of large particles collected, the collection of large particles is still limited by the gap between the brushes because the brushes need to cover a sufficient area when sweeping, and there is still a risk of large particles getting stuck when in use. In addition, most existing cleaning machines use a water outlet method that adds a water outlet hole inside the shell, and it is difficult for the cleaning water to instantly cover the surface to be cleaned, resulting in insufficient cleaning strength in some areas, and it is also possible to scratch the surface of the initial cleaning area.

[0005] Therefore, there is a need to further improve the existing cleaning machine floor brush module. Summary of the invention

[0006] The first technical problem to be solved by the present invention is to provide a floor brush module for a cleaning machine that utilizes a brush member to swing to open and close a guide channel to collect debris in view of the current status of the prior art.

[0007] The second technical problem to be solved by the present invention is to provide a cleaning machine with the above-mentioned floor brush module in view of the current status of the prior art.

[0008] The technical solution adopted by the present invention to solve the above-mentioned first technical problem is: a floor brush module for a cleaning machine, comprising:

[0009] A shell, with a dust suction port at the bottom, the shell also has an inlet for collecting fluid and solid particles on the front side of the floor brush module in the direction of travel, and a guide channel is formed between the inlet and the dust suction port;

[0010] At least two brush members are arranged at the bottom of the shell and located on the flow path of the fluid in the guide channel. The first end of each brush member can be rotatably connected to the front side of the bottom of the shell, so that the second end can be deflected and swung relative to the shell, and when the floor brush module is in the forward state, each brush member can be deflected and swung until its own extension direction is consistent with the travel direction of the floor brush module; and when the floor brush module is in the backward state, each brush member can be deflected and swung until its own extension direction intersects with the travel direction of the floor brush module; and

[0011] A water flow channel is provided on the brush member, and a water outlet end of the water flow channel is in fluid communication with the flow guide channel; and

[0012] The pump body is arranged in the shell, and the water outlet end of the pump body is in fluid communication with the water inlet end of the water flow channel.

[0013] The brush member can be arranged at different positions of the shell. In order to enable the brush member to perform the sweeping action as soon as possible while the floor brush module moves, the front side of the shell has a mounting seat, the bottom of the mounting seat is spaced apart from the surface to be cleaned to form the guide channel, and the opening on the front side of the mounting seat is the inlet, and each of the brush members is connected to the bottom of the mounting seat.

[0014] In order to ensure smooth swinging of the brush, preferably, the mounting seat has at least two mounting holes in the width direction of the shell, each of the brushes has a swivel joint extending upward, and each of the swivel joints can be rotatably constrained in the corresponding mounting hole.

[0015] To facilitate water discharge, preferably, the brush is in a strip shape, the rotating joint has a rotating shaft located at the first end of the brush, the rotating shaft is hollow inside to form a water inlet channel for fluidly connecting to the water outlet end of the pump body, the brush is hollow inside to form a water outlet channel, and the water outlet channel is fluidly connected to the water inlet channel to form the water flow channel.

[0016] In order to prevent the water from rushing to the surface to be cleaned under high pressure, preferably, the flow direction of the fluid in the outlet channel intersects with the flow direction of the fluid in the inlet channel. The design relationship between the two channels can make the supplied cleaning water turn around and avoid spraying directly to the surface to be cleaned.

[0017] In order to prevent the brush from falling off, specifically, the inner edge of the mounting hole has a connecting sleeve extending upward, and the outer periphery of the upper end of the rotating shaft has a retaining edge extending radially outward, and the retaining edge abuts against the upper end of the connecting sleeve to constrain the rotating shaft in the connecting sleeve.

[0018] Preferably, the outer wall of the lower end of the rotating shaft has an extension piece extending radially outward, and the projection of the extension piece on the plane where the mounting hole is located covers the mounting hole. The design of such an extension piece can, on the one hand, prevent debris from entering the mounting hole, and ensure smooth swinging of the brush member; on the other hand, due to the existence of the extension piece, in addition to covering the mounting hole, it can also abut against the periphery of the mounting hole, greatly offsetting the lateral force on the rotating shaft of the entire brush member in the direction of travel of the floor brush module, reducing the strength requirements of the parts, and preventing the rotating shaft from shaking.

[0019] Specifically, the thickness of the extension piece gradually decreases from the inside to the outside. This design of the extension piece further enhances the strength of the rotating shaft, and the gradient change in thickness enables the extension piece near the inner side of the rotating shaft to bear most of the external forces on the brush member, and at the same time, the thinner portion of the outer edge of the extension piece will not hinder the flow of the fluid, and can also guide the collection of large particles.

[0020] Preferably, the bottom of the brush member is provided with a water outlet along its length, and the water outlet is in fluid communication with the water outlet channel. Such a water outlet design allows the cleaning water to be fully distributed in the brush member after entering the water outlet channel from the water inlet channel, thereby further ensuring uniform spraying of the cleaning water.

[0021] Specifically, a gap is left between the two side walls of the brush member to form a water outlet channel, and the gap between the two side walls of the brush member gradually decreases from top to bottom, so that the water outlet is formed at the bottom of the brush member.

[0022] Preferably, the floor brush module further includes a second elastic member, which can act on the brush member when the shell is in an upward moving state, so that the brush member always has a tendency to rotate to close the guide channel and be in the second use state.

[0023] Specifically, the second elastic member is a torsion spring sleeved on the rotating shaft.

[0024] In order to prevent hair and large particles from getting stuck in the brush element, specifically, the spacing between the mounting holes is not greater than the length of the brush element, so that two adjacent brush elements can overlap. The arrangement of the brush element in this way enables the second elastic element to not only drive the brush element to reset, but also enable the brush elements to clean each other. Since the brush element is no longer affected by the friction of the surface to be cleaned when it is reset, the brush element can swing in the opposite direction driven by the elastic restoring force of the second elastic element. Since the elastic restoring force is not exhausted during the reset swing, and there is inertia in the reset swing of the brush element, the second end of the previous brush element can slap the first end of the next brush element vigorously. At this time, the hair attached to the two brush elements or the debris and particles stuck in the guide channel can be loosened by the intermittent slapping action, and finally sucked away by the negative pressure, which is equivalent to achieving self-cleaning of each brush element and the guide channel.

[0025] In order to realize the extraction of negative pressure airflow, preferably, the shell further has an outlet, and along the direction of the fluid, the outlet is arranged downstream of the inlet, and the inlet is connected with the outlet fluid through the dust suction port.

[0026] There are many ways to supply cleaning water to the water flow channel. Preferably, a water diversion seat is also provided on the front side of the shell. The water diversion seat is hollow inside to form a water storage chamber. The pump body is connected to the water flow channel fluid of each brush member through the water storage chamber.

[0027] In order to further solve the above-mentioned second technical problem, the technical solution adopted by the present invention is: a cleaning machine, having the above-mentioned floor brush module, and also including a dust separation module and a fan module, wherein the floor brush module, the dust separation module and the fan module are arranged in sequence along the flow direction of the fluid.

[0028] Preferably, the cleaning machine is a vacuum cleaner or a floor scrubber.

[0029] Compared with the prior art, the advantages of the present invention are: in the floor brush module for the cleaning machine, since the first end of the brush element can be rotatably connected to the bottom of the shell, the second end thereof can swing relative to the shell, and when it swings to the first use state, the diversion channel can be opened, and large particles can be smoothly collected by the diversion channel. In addition, since the water flow channel on the brush element can directly supply water to the surface to be cleaned, the scraping action can be completed synchronously while the brush element rubs against the surface to be cleaned, and the cleaning water can be used to directly soak and soften the hard stains attached to the surface to be cleaned, thereby further improving the cleaning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a schematic diagram of the overall structure of the floor brush module in an embodiment of the present invention;

[0031] Figure 2 for Figure 1 Schematic diagram from another angle;

[0032] Figure 3 is a cross-sectional view of the housing at a first angle;

[0033] Figure 4 is a cross-sectional view of the housing at a second angle;

[0034] Figure 5 is a schematic diagram of the flow path of the fluid in the shell;

[0035] Figure 6 This is an overall schematic diagram of the cleaning machine. DETAILED DESCRIPTION

[0036] The present invention is further described in detail below with reference to the accompanying drawings.

[0037] like Figures 1 to 6 As shown, it is a preferred embodiment of the present invention. In this embodiment, the floor brush module is suitable for a cleaning machine, and the cleaning machine mentioned here can be a vacuum cleaner or a floor scrubber, and in addition to the above-mentioned floor brush module 101, the cleaning machine also includes a dust separation module 102 and a fan module 103, and the floor brush module 101, the dust separation module 102 and the fan module 103 are arranged in sequence along the flow direction of the fluid. Taking the floor scrubber as an example, the floor brush module in this embodiment specifically includes a housing 1, at least two brush members 2 and a pump body 5. The above-mentioned housing 1 is provided with a dust suction port 1b at the bottom, and the housing 1 also has an inlet 1a for collecting fluid and solid particles on the front side of the floor brush module in the direction of travel, and a guide channel 10 is formed between the inlet 1a and the dust suction port 1b. When the solid-liquid mixture is collected to the guide channel 10 by negative pressure, it will flow downstream through the outlet 1c of the housing 1, and the dust separation module 102, along the direction of the fluid, the above-mentioned outlet 1c is arranged downstream of the inlet 1a, and the inlet 1a is fluidly connected to the outlet 1c through the dust suction port 1b.

[0038] In order to realize the sweeping and brushing of the surface to be cleaned, there are at least two brush members 2 evenly arranged at the bottom of the shell 1 and located on the flow path of the fluid in the guide channel 10. In this embodiment, the first end of each brush member 2 can be rotatably connected to the front side of the bottom of the shell 1 so that the second end can be deflected and swung relative to the shell 1, and when the floor brush module is in the forward state, each brush member 2 can be deflected and swung until its own extension direction is consistent with the travel direction of the floor brush module; and when the floor brush module is in the backward state, each brush member 2 can be deflected and swung until its own extension direction intersects with the travel direction of the floor brush module. Specifically, the front side of the shell 1 has a mounting seat 11, and the bottom of the mounting seat 11 is spaced from the surface to be cleaned to form a guide channel 10, and the opening on the front side of the mounting seat 11 is the inlet 1a, and each brush member 2 is connected to the bottom of the mounting seat 11. In order to perform the sweeping action, the above-mentioned mounting seat 11 has at least two mounting holes 12 in the width direction of the shell 1, and each brush member 2 has a rotating joint 20 extending upward, and each rotating joint 20 can be rotatably constrained in the corresponding mounting hole 12.

[0039] In this embodiment, the inner edge of the mounting hole 12 has a connecting sleeve 13 extending upward, and the outer periphery of the upper end of the rotating shaft 21 has a retaining edge 22 extending radially outward, and the retaining edge 22 abuts against the upper end of the connecting sleeve 13 to constrain the rotating shaft 21 in the connecting sleeve 13. In addition, the outer wall of the lower end of the rotating shaft 21 has an extending piece 23 extending radially outward, and the projection of the extending piece 23 on the plane where the mounting hole 12 is located covers the mounting hole 12. The thickness of the extending piece 23 gradually decreases from the inside to the outside.

[0040] In order to supply the cleaning water to the surface to be cleaned, the brush member 2 in this embodiment is strip-shaped, and has a water flow channel 40 in fluid communication with the guide channel 10, and the pump body 5 is arranged in the housing 1, and its water outlet is in fluid communication with the water inlet of the water flow channel 40. Specifically, a water diversion seat 6 is also arranged on the front side of the housing 1, and the water diversion seat 6 is hollow inside to form a water storage chamber 60, and the pump body 5 is in fluid communication with the water flow channels 40 of each brush member 2 through the water storage chamber 60. The above-mentioned rotary joint 20 has a rotating shaft 21 located at the first end of the brush member 2, and the rotating shaft 21 is hollow inside to form an inlet flow channel 40a for fluid communication with the water outlet end of the pump body 5, and the brush member 2 is hollow inside to form an outlet flow channel 40b, and the outlet flow channel 40b is in fluid communication with the inlet flow channel 40a to form the water flow channel 40. The flow direction of the fluid in the outlet flow channel 40b in this embodiment intersects with the flow direction of the fluid in the inlet flow channel 40a. In addition, the bottom of the brush member 2 is provided with a water outlet 40c along its length, and the water outlet 40c is in fluid communication with the water outlet channel 40b. Specifically, a gap is left between the two side walls of the brush member 2 to form the water outlet channel 40b, and the gap between the two side walls of the brush member 2 gradually decreases from top to bottom, so that the water outlet 40c is formed at the bottom of the brush member 2.

[0041] In order to realize the rotational reset of the brush member 2, the floor brush module also includes a second elastic member 24, which can act on the brush member 2 when the housing 1 is in an upward moving state, so that the brush member 2 always has a tendency to rotate to close the guide channel 10 and be in the second use state. The second elastic member 24 in this embodiment is a torsion spring sleeved on the rotating shaft 21. In addition, in this embodiment, the spacing between each mounting hole 12 is not greater than the length of the brush member 2, so that two adjacent brush members 2 overlap. In this way, the brush member is arranged, so that the second elastic member can not only drive the brush member to reset, but also realize the purpose of mutual cleaning between the brush members. Since the brush is no longer affected by the friction of the surface to be cleaned when it is reset, the brush can swing in the opposite direction driven by the elastic restoring force of the second elastic member. Since the elastic restoring force is not exhausted during the reset swing and the reset swing of the brush has inertia, the second end of the previous brush can slap the first end of the next brush vigorously. At this time, the hair attached to the two brushes or the debris and particles stuck in the guide channel can be loosened by the intermittent slapping and eventually sucked away by the negative pressure, which is equivalent to achieving self-cleaning of each brush and the guide channel. In addition, the overlapping brushes 2 can also avoid residual cleaning water when retreating.

[0042] The "fluid connection" referred to in the present invention refers to the spatial position relationship between two parts or parts (hereinafter collectively referred to as the first part and the second part respectively), that is, the fluid (gas, liquid or a mixture of the two) can flow from the first part along the flow path or / and be transported to the second part. The first part and the second part can be directly connected, or the first part and the second part can be indirectly connected through at least one third party. The third party can be a fluid channel such as a pipe, channel, duct, guide member, hole, groove, etc., or it can be a chamber allowing fluid to flow through, or a combination of the above.

[0043] In addition, terms indicating directions, such as "front", "rear", "up", "down", "left", "right", "side", "top", "bottom", etc., are used in the specification and claims of the present invention to describe various exemplary structural parts and elements of the present invention, but these terms are used here only for the purpose of convenience of description and are determined based on the exemplary orientations shown in the accompanying drawings. Since the embodiments disclosed in the present invention can be arranged in different directions, these terms indicating directions are only used as explanations and should not be regarded as limitations. For example, "up" and "down" are not necessarily limited to directions opposite to or consistent with the direction of gravity.

Claims

1. A floor brush module for a cleaning machine, comprising: A shell (1) having a dust suction port (1b) at its bottom, the shell (1) also having an inlet (1a) for collecting fluid and solid particles on the front side in the direction of travel of the floor brush module, and a flow guide channel (10) is formed between the inlet (1a) and the dust suction port (1b); It is characterized by also including: At least two brush members (2) are arranged at the bottom of the housing (1) and are located on the flow path of the fluid in the guide channel (10); the first end of each brush member (2) is rotatably connected to the front side of the bottom of the housing (1) so that the second end can be deflected and swung relative to the housing (1); and when the floor brush module is in an advanced state, each brush member (2) can be deflected and swung until its own extension direction is consistent with the travel direction of the floor brush module; and when the floor brush module is in a backward state, each brush member (2) can be deflected and swung until its own extension direction intersects with the travel direction of the floor brush module; and A water flow channel (40) is provided on the brush member (2), and a water outlet end thereof is in fluid communication with the flow guide channel (10); and The pump body (5) is arranged in the housing (1), and its water outlet end is in fluid communication with the water inlet end of the water flow channel (40).

2. The floor brush module according to claim 1, characterized in that: The front side of the housing (1) has a mounting seat (11), the bottom of the mounting seat (11) is spaced apart from the surface to be cleaned so as to form the guide channel (10), and the opening on the front side of the mounting seat (11) is the inlet (1a), and each of the brush elements (2) is connected to the bottom of the mounting seat (11).

3. The floor brush module according to claim 2, characterized in that: The mounting seat (11) has at least two mounting holes (12) in the width direction of the shell (1), each of the brush members (2) has a rotating joint (20) extending upward, and each of the rotating joints (20) can be rotatably constrained in a corresponding mounting hole (12).

4. The floor brush module according to claim 3, characterized in that: The brush member (2) is strip-shaped, and the rotating joint (20) has a rotating shaft (21) located at the first end of the brush member (2). The rotating shaft (21) is hollow inside to form a water inlet channel (40a) for fluid communication with the water outlet end of the pump body (5). The brush member (2) is hollow inside to form a water outlet channel (40b), and the water outlet channel (40b) is fluidically connected to the water inlet channel (40a) to form the water flow channel (40).

5. The floor brush module according to claim 4, characterized in that: The flow direction of the fluid in the water outlet channel (40b) intersects with the flow direction of the fluid in the water inlet channel (40a).

6. The floor brush module according to claim 5, characterized in that: The inner edge of the mounting hole (12) is provided with a connecting sleeve (13) extending upward, and the outer periphery of the upper end of the rotating shaft (21) is provided with a retaining edge (22) extending radially outward, and the retaining edge (22) abuts against the upper end of the connecting sleeve (13) so that the rotating shaft (21) is constrained in the connecting sleeve (13).

7. The floor brush module according to claim 6, characterized in that: The outer wall of the lower end of the rotating shaft (21) has an extension piece (23) extending outward in a radial direction, and the projection of the extension piece (23) on the plane where the mounting hole (12) is located covers the mounting hole (12).

8. The floor brush module according to claim 7, characterized in that: The thickness of the extension piece (23) gradually decreases from the inside to the outside.

9. The floor brush module according to claim 8, characterized in that: A water outlet (40c) is provided at the bottom of the brush component (2) along its length direction, and the water outlet (40c) is fluidically connected to the water outlet channel (40b).

10. The floor brush module according to claim 9, characterized in that: A water outlet channel (40b) is formed by leaving a gap between the two side wall plates of the brush member (2), and the gap between the two side wall plates of the brush member (2) gradually decreases from top to bottom, so that the water outlet (40c) is formed at the bottom of the brush member (2).

11. The floor brush module according to claim 10, characterized in that: It also includes a second elastic member (24) which can act on the brush member (2) when the housing (1) is in an upwardly moving state, so that the brush member (2) always has a tendency to rotate to close the guide channel (10) and be in a second use state.

12. The floor brush module according to claim 11, characterized in that: The second elastic member (24) is a torsion spring sleeved on the rotating shaft (21).

13. The floor brush module according to claim 12, characterized in that: The spacing between the mounting holes (12) is no greater than the length of the brush member (2), so that two adjacent brush members (2) can overlap.

14. The floor brush module according to claim 13, characterized in that: The housing (1) further comprises an outlet (1c), which is arranged downstream of the inlet (1a) along the direction of the fluid, and the inlet (1a) is fluidically connected to the outlet (1c) through the dust suction port (1b).

15. The floor brush module according to claim 14, characterized in that: The housing (1) is also provided with a water diversion seat (6) on the front side. The water diversion seat (6) is hollow inside to form a water storage chamber (60). The pump body (5) is fluidically connected to the water flow channels (40) of each brush member (2) through the water storage chamber (60).

16. A cleaning machine, comprising a floor brush module as claimed in any one of claims 1 to 15, characterized in that: It also includes a dust separation module (102) and a fan module (103), wherein the floor brush module (101), the dust separation module (102) and the fan module (103) are arranged in sequence along the flow direction of the fluid.

17. The cleaning machine according to claim 16, characterized in that: The cleaning machine is a vacuum cleaner or a floor scrubber.

Images