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 flow guide channel is formed in a shell, a brush head assembly is provided with two first brush pieces and two second brush pieces, and a gap is reserved between the two first brush pieces to form a dust collection channel allowing dust at an inlet to enter a suction port; the two first brush pieces move outwards to avoid a dust collection channel between the inlet and the suction port, and when large dust particles are clamped in the middle of the shell, the two first brush pieces can be pressed to expand outwards, so that the avoiding action is realized, sufficient entering space can be provided for the large particles, and the dust collection effect is improved. And the situation that dust particles are clamped in a gap between the two first brush pieces is avoided.

Description

Technical Field

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

[0002] Most existing mobile cleaning devices use a roller brush as a sweeping actuator. The roller brush rolls to make the brush or bristles on its outer periphery contact the surface to be cleaned, thereby cleaning the dirt attached to the surface to be cleaned. Although the roller brush structure covers a relatively large cleaning area, since the mobile cleaning device relies on negative pressure suction to collect dirt, the arrangement of the roller brush also brings about the disadvantage of blocking the air path, which weakens the negative pressure suction to a certain extent.

[0003] To this end, the applicant disclosed in the Chinese utility model patent previously applied for with patent number CN202122959279.4 (authorization announcement number CN216776859U) "A floor brush module for a cleaning machine and a cleaning machine". The cleaning machine adopts a disc brush structure instead of the traditional roller brush. Since the rotation axis of the disc brush extends vertically, there will be a rotation gap between two adjacent disc brushes. This gap is conducive to the passage of airflow, which greatly solves the problem of weakening of negative pressure suction in existing cleaning machines. However, the size of the gap between the disc brushes is usually fixed. When some larger particles need to be cleaned, insufficient suction may occur or the particles may get stuck in the gap between the two disc brushes.

[0004] For this reason, further improvements need to be made to the existing cleaning machine. Summary of the invention

[0005] The first technical problem to be solved by the present invention is to provide a floor brush module for a cleaning machine in which a brush member can actively avoid large dust particles from entering the dust suction chamber from the inlet in response to the current status of the prior art.

[0006] 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.

[0007] 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:

[0008] A shell, wherein the interior of the shell has a dust suction chamber for collecting dirt and a guide channel for conveying the collected dirt to a downstream dust separation module, wherein the dust suction chamber has an inlet located at the front side of the shell, and the guide channel has a suction port located at the rear side of the dust suction chamber;

[0009] A brush head assembly comprises two first brush members and two second brush members, wherein the two first brush members are arranged side by side in the dust suction chamber along the width direction of the shell and are spaced apart from each other to form a dust collecting channel for dust at the inlet to enter the suction port, and the two second brush members are arranged correspondingly on the outsides of the two first brush members, and at least one of the two first brush members can move outward under pressure to approach the adjacent second brush member, thereby increasing the flow area of ​​the dust collecting channel.

[0010] There are many ways to achieve negative pressure vacuuming. Preferably, the front side of the shell has a base, and a gap is left between the bottom of the base and the surface to be cleaned to form a vacuum chamber. The suction port is arranged in the middle of the rear area of ​​the vacuum chamber and the opening is arranged forward.

[0011] Specifically, two vertically penetrating guide slots are provided in the thickness direction of the base, and the two first brush members are respectively constrained at the corresponding guide slots and are located on both sides of the dust collection channel.

[0012] Furthermore, the two guide slots extend along the front-to-back direction of the housing, and the extension direction of the two guide slots is arranged at an angle to the flow direction of the fluid in the dust collection channel, so that the spacing between the two guide slots gradually increases from front to back. In this way, the two guide slots are arranged at an angle, and the advantages of the extension direction of the guide slots are utilized, so that the first brush element can simultaneously achieve the action of expanding and moving outwards while being moved backwards by the resistance on the front side, without the need for a separate design of a driving component.

[0013] In order to ensure that the first brush moves outwards with a large enough amplitude to prevent particles and debris from entering the dust collection channel, the floor brush module also includes an elastic linkage component, including a linkage shaft and two elastic connectors. The linkage shaft extends laterally and can be constrained on the base so as to move forward and backward, and the two ends of the linkage shaft are respectively connected to the corresponding first brushes through two elastic connectors, so that the two first brushes move synchronously. The design of the elastic linkage component, on the one hand, can make the two first brushes have a tendency to move synchronously. The synchronous outward movement of the two first brushes will double the area of ​​the avoidance zone formed, further avoiding the situation of large particles stuck in the column under extreme working conditions; on the other hand, the elastic recovery property of the elastic connector will automatically feed back the size of the resistance into the size of the avoidance gap between the two first brushes, that is, it can flexibly change the effective flow area of ​​the entire dust collection channel according to the specific adjustment conditions.

[0014] In order to ensure smooth movement of the first brush, preferably, both of the first brushes are provided with a slide seat for slidingly matching with the corresponding guide slots, and when the two slide seats slide synchronously to the rear end of the guide slots, the two first brushes are located on both sides of the suction port.

[0015] In order to ensure the linkage of the two first brush members, preferably, the top of the base has an upwardly extending guide platform near the middle, and the guide platform is provided with a first limiting groove arranged laterally through for the linkage shaft to pass through.

[0016] In order to ensure that cleaning water is supplied to the surface to be cleaned, preferably, the housing is further provided with a water diversion seat, and a water outlet end of the water diversion seat is in fluid communication with the dust suction chamber.

[0017] Preferably, the water inlet end of the water diversion seat has a water inlet pipe, and the guide platform is provided with a second limit groove extending in the front-to-back direction, and the water inlet pipe is embedded in the second limit groove and arranged on the moving path of the linkage shaft so as to be partially deformed under the action of the linkage shaft. The assembly method of the water inlet pipe in this way enables the supply of washing water to be automatically adjusted according to the vacuuming working conditions. Once the front vacuuming action performs the outward expansion action of the first brush member due to the collection of large particles, the linkage shaft can automatically act on the water inlet pipe to deform it and reduce the effective flow area of ​​the water inlet pipe, thereby reducing the supply of washing water, avoiding the waste of water resources, and also avoiding the residual water stains on the ground caused by excessive supply of washing water.

[0018] Specifically, the upper side of the water inlet pipe is located above the second limiting groove, and the height of the top surface of the side wall of the second limiting groove gradually increases from front to back.

[0019] In order to ensure that the two first brush members can be reset in time, preferably, the elastic connecting member is a tension spring, which acts on the first brush member so that the first brush member always has a tendency to reset and move to the front side of the guide slot.

[0020] Specifically, the two slide seats have protrusions on the sides adjacent to the linkage shaft for connection with corresponding tension springs.

[0021] In order to ensure the guidance of dust particles, preferably, the second brush is arranged at the front side of the corresponding first brush, so as to be staggered with the first brush in the front-to-back direction, and each first brush and second brush are arranged in a V-shaped shape with the opening facing forward in the dust collection chamber. In this way, the first brush and the second brush are staggered, and a gradient is naturally formed between the first brush and the second brush during the movement of the first brush. Once dust particles are blocked between the first brush and the second brush, the particles in the gap can enter the suction port along the gradient of the arrangement, which is convenient for collecting dust.

[0022] In order to ensure smooth movement of the first brush member, preferably, the bottom of the slide seat has a guide column extending downward, and the periphery of the guide slot is provided with a sliding groove for sliding matching of the guide column at a corresponding position.

[0023] In order to ensure that the first brush and the second brush can achieve active cleaning, preferably, the brush head assembly also includes a driving mechanism, which has at least two drivers, and the power output end of each driver is drivingly connected to the corresponding first brush or second brush.

[0024] 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, the floor brush module, the dust separation module and the fan module are arranged in sequence along the flow direction of the fluid, and the outlet end of the floor brush module is the exhaust port of the shell.

[0025] Preferably, the cleaning machine is a floor scrubber or a vacuum cleaner.

[0026] Compared with the prior art, the advantage of the present invention is that in the floor brush module used for the cleaning machine, the two first brush members can move outward to avoid the dust collection channel between the inlet and the suction port. When large dust particles are stuck in the middle of the shell, the two first brush members can be pressed and expand outward to achieve the above-mentioned avoidance action, thereby providing sufficient entry space for large particles and avoiding the situation where dust particles are stuck in the gap between the two first brush members. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the overall structure of the floor brush module in an embodiment of the present invention;

[0028] Figure 2 for Figure 1 Schematic diagram from another angle;

[0029] Figure 3 for Figure 2 A magnified schematic diagram of the structure in the middle;

[0030] Figure 4 This is a schematic diagram of the exploded structure of a floor brush module in an embodiment of the present invention;

[0031] Figure 5 is the overall schematic diagram of the slide;

[0032] Figure 6 is a schematic diagram of the bottom of the housing (the first brush member is located at the front end of the guide slot);

[0033] Figure 7 It is a schematic diagram of the bottom of the housing (the first brush member is located at the rear end of the guide slot);

[0034] Figure 8 It is the overall schematic diagram of the cleaning machine;

[0035] Fig. 9 A cross-sectional view of the shell. DETAILED DESCRIPTION

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

[0037] like Figures 1 to 9 As shown, it is a preferred embodiment of the present invention. In this embodiment, in this embodiment, the floor brush module is suitable for a cleaning machine, and the cleaning machine mentioned here can be a floor scrubber or a vacuum cleaner. Taking the floor scrubber as an example, in addition to the floor brush module 105, it also includes a dust separation module 103 and a fan module 104. The floor brush module, the dust separation module 103 and the fan module 104 are arranged in sequence along the flow direction of the fluid, and the outlet end of the floor brush module is the exhaust port 106 of the housing 1.

[0038] The floor brush module in this embodiment specifically includes a housing 1, a brush head assembly 2 and an elastic linkage assembly. The housing 1 has a dust suction chamber 100 and a guide channel 10 inside, wherein the dust suction chamber 100 is used to collect dirt, and the dust separation module is used to transport the collected dirt to the downstream dust separation module 103, and the dust suction chamber 100 has an inlet 101 located at the front side of the housing 1, and the guide channel 10 has a suction port 102 located at the rear side of the dust suction chamber 100, and the inlet 101, the dust suction chamber 100 and the guide channel 10 are arranged in sequence along the flow direction of the fluid.

[0039] In this embodiment, the brush head assembly 2 has two first brush members 21 and two second brush members 22. The two first brush members 21 are arranged side by side in the dust collection chamber 100 along the width direction of the shell 1 and are spaced apart from each other to form a dust collecting channel 1a for dust at the entrance to enter the suction port 102. The two second brush members 22 are respectively arranged on the outside of the two first brush members 21, and at least one of the two first brush members 21 can move outward under pressure to approach the adjacent second brush member 22, thereby increasing the flow area of ​​the dust collecting channel 1a.

[0040] There are many specific structures for realizing the movement of the first brush member 21. The front side of the shell 1 in this embodiment has a base 12. A gap is left between the bottom of the base 12 and the surface to be cleaned to form a dust suction chamber 100. The suction port 102 is arranged in the middle of the rear area of ​​the dust suction chamber 100 and the opening is arranged forward. Two vertically through-arranged guide slots 13 are provided in the thickness direction of the above-mentioned base 12. The two first brush members 21 are respectively constrained at the corresponding guide slots 13 and are located on both sides of the dust collection channel 1a. The above-mentioned two guide slots 13 extend along the front and rear directions of the shell 1, and the extension directions of the two are arranged at an angle to the flow direction of the fluid in the dust collection channel 1a, so that the distance between the two guide slots 13 gradually increases from front to back.

[0041] The floor brush module in this embodiment also includes an elastic linkage component, which includes a linkage shaft 31 and two elastic connectors 32. The linkage shaft 31 extends horizontally and can be constrained on the base 12 to move forward and backward, and the two ends of the linkage shaft 31 are respectively connected to the corresponding first brush member 21 through two elastic connectors 32, so that the two first brush members 21 move synchronously. The design of the elastic linkage component, on the one hand, can make the two first brush members have a tendency to move synchronously. The synchronous outward movement of the two first brush members will double the area of ​​the formed avoidance area, further avoiding the situation of large particles stuck in the column under extreme working conditions; on the other hand, the elastic recovery property of the elastic connector will automatically feedback the size of the resistance into the size of the avoidance gap between the two first brush members, that is, it can flexibly change the effective flow area of ​​the entire dust collection channel according to the specific adjustment working conditions. Specifically, the two first brush members 21 are provided with a slide 11 for sliding matching with the corresponding guide slot 13, and when the two slides 11 slide synchronously to the rear end of the guide slot 13, the two first brush members 21 are divided into two sides of the suction port 102. In order to facilitate sliding, a guide column 111 extending downward is provided at the bottom of the slide seat 11, and a slide groove 131 for sliding matching of the guide column 111 is provided at a corresponding position on the periphery of the guide slot 13. In order to further facilitate the linkage of the two first brush members 21, a guide platform 14 extending upward is provided at the top of the base 12 near the middle, and a first limiting groove 14a is provided on the guide platform 14 and is arranged to penetrate laterally for the linkage shaft 31 to pass through.

[0042] In order to ensure the supply of cleaning water to the surface to be cleaned, the shell 1 is also provided with a water diversion seat 4, and the water outlet end of the water diversion seat 4 is in fluid communication with the dust suction chamber 100. Of course, there is also a water pump inside the shell 1, which can pump the cleaning water in the clean water tank of the cleaning machine to the water diversion seat 4. This part of the components belongs to conventional design and will not be repeated. The water inlet end of the water diversion seat 4 has a water inlet pipe 40, and the guide platform 14 is provided with a second limiting groove 14b extending along the front-to-back direction. The water inlet pipe 40 is embedded in the second limiting groove 14b and arranged on the moving path of the linkage shaft 31, so as to be locally deformed under the action of the linkage shaft 31. The assembly method of the water inlet pipe enables the supply of washing water to be automatically adjusted according to the vacuuming working condition. Once the front side vacuuming action performs the outward expansion action of the first brush member due to the collection of large particles, the linkage shaft can automatically act on the water inlet pipe to deform it and reduce the effective flow area of ​​the water inlet pipe, thereby reducing the supply of washing water, avoiding the waste of water resources, and also avoiding the residual water stains on the ground caused by excessive supply of washing water. The upper side of the water inlet pipe 40 in this embodiment is located above the second limiting groove 14b, and the height of the top surface 14c of the side wall of the second limiting groove 14b gradually increases from front to back.

[0043] There are various structures for realizing the elastic reset of the two first brush members. The elastic connecting member 32 in this embodiment is a tension spring, which acts on the first brush member 21 so that the first brush member 21 always has a tendency to reset and move to the front side of the guide slot 13. Specifically, the two slide seats 11 have convex points 211 for connecting corresponding tension springs on the sides adjacent to the linkage shaft 31.

[0044] In this embodiment, the second brush 22 is arranged on the front side of the corresponding first brush 21, so that it is staggered with the first brush 21 in the front-to-back direction, and each first brush 21 and second brush 22 are arranged in a V-shaped opening facing forward in the dust suction chamber 100. In this way, the first brush and the second brush are staggered. During the movement of the first brush, a gradient will naturally be formed between the first brush and the second brush. Once dust particles are blocked between the first brush and the second brush, the particles in the gap can enter the suction port along the gradient of the arrangement, which is convenient for collecting dust. In addition, in order to ensure the sweeping effect of the first brush 21 and the second brush 22 on the surface to be cleaned, the brush head assembly 2 also includes a driving mechanism 3, which has at least two drivers 30, and the power output end of each driver 30 is connected to the corresponding first brush 21 or the second brush 22. That is, whether it is the first brush 21 or the second brush 22, there is a separate driver 30 for driving it to rotate.

[0045] 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.

[0046] 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), wherein there is a dust suction chamber (100) for collecting dirt and a guide channel (10) for conveying the collected dirt to a downstream dust separation module, wherein the dust suction chamber (100) has an inlet (101) located at the front side of the shell (1), and the guide channel (10) has a suction port (102) located at the rear side of the dust suction chamber (100); It is characterized by also including: The brush head assembly (2) comprises two first brush members (21) and two second brush members (22); the two first brush members (21) are arranged side by side in the dust collection chamber (100) along the width direction of the housing (1) and are spaced apart from each other to form a dust collection channel (1a) for dust at the inlet to enter the suction port (102); the two second brush members (22) are arranged correspondingly on the outside of the two first brush members (21), and at least one of the two first brush members (21) can move outward under pressure to approach the adjacent second brush member (22), thereby increasing the flow area of ​​the dust collection channel (1a).

2. The floor brush module according to claim 1, characterized in that: The front side of the shell (1) has a base (12), a gap is left between the bottom of the base (12) and the surface to be cleaned to form a dust suction chamber (100), and the suction port (102) is arranged in the middle of the rear area of ​​the dust suction chamber (100) with the opening facing forward.

3. The floor brush module according to claim 2, characterized in that: The base (12) is provided with two vertically penetrating guide slots (13) in the thickness direction, and the two first brush members (21) are respectively restrained at the corresponding guide slots (13) and are located on both sides of the dust collection channel (1a).

4. The floor brush module according to claim 3, characterized in that: The two guide slots (13) both extend along the front-to-rear direction of the shell (1), and their extension directions are arranged at an angle to the flow direction of the fluid in the dust collecting channel (1a), so that the distance between the two guide slots (13) gradually increases from front to back.

5. The floor brush module according to claim 4, characterized in that: It also includes an elastic linkage component, including a linkage shaft (31) and two elastic connecting members (32), wherein the linkage shaft (31) extends transversely and is constrained on the base (12) so as to be movable forward and backward, and the two ends of the linkage shaft (31) are respectively connected to the corresponding first brush members (21) through the two elastic connecting members (32), so that the two first brush members (21) move synchronously.

6. The floor brush module according to claim 5, characterized in that: The two first brush members (21) are each provided with a slide seat (11) for slidingly matching with the corresponding guide slot (13), and when the two slide seats (11) synchronously slide to the rear end of the guide slot (13), the two first brush members (21) are located at two sides of the suction port (102).

7. The floor brush module according to claim 6, characterized in that: The top of the base (12) is provided with an upwardly extending guide platform (14) at a position near the middle, and the guide platform (14) is provided with a first limiting groove (14a) arranged to penetrate laterally for the linkage shaft (31) to pass through.

8. The floor brush module according to claim 7, characterized in that: The housing (1) is also provided with a water diversion seat (4), and a water outlet end of the water diversion seat (4) is fluidically connected to the dust suction chamber (100).

9. The floor brush module according to claim 8, characterized in that: The water inlet end of the water diversion seat (4) is provided with a water inlet pipe (40), the guide platform (14) is provided with a second limiting groove (14b) extending in the front-rear direction, the water inlet pipe (40) is embedded in the second limiting groove (14b) and arranged on the moving path of the linkage shaft (31) so as to be locally deformed under the action of the linkage shaft (31).

10. The floor brush module according to claim 9, characterized in that: The upper side of the water inlet pipe (40) is located above the second limiting groove (14b), and the height of the top surface (14c) of the side wall of the second limiting groove (14b) gradually increases from front to back.

11. The floor brush module according to claim 10, characterized in that: The elastic connecting member (32) is a tension spring, which acts on the first brush member (21) so that the first brush member (21) always has a tendency to reset and move to the front side of the guide slot (13).

12. The floor brush module according to claim 11, characterized in that: The two slide seats (11) are provided with protrusions (211) on the sides adjacent to the linkage shaft (31) for connecting corresponding tension springs.

13. The floor brush module according to claim 12, characterized in that: The second brush member (22) is arranged on the front side of the corresponding first brush member (21), so as to be staggered with the first brush member (21) in the front-to-rear direction, and each first brush member (21) and second brush member (22) is arranged in a V-shape with the opening facing forward in the dust collection chamber (100).

14. The floor brush module according to claim 13, characterized in that: The bottom of the slide seat (11) is provided with a guide column (111) extending downward, and a slide groove (131) for sliding matching with the guide column (111) is provided at a corresponding position on the periphery of the guide slot (13).

15. The floor brush module according to claim 1, characterized in that: The brush head assembly (2) also includes a driving mechanism (3), which has at least two drivers (30), and the power output end of each driver (30) is drivingly connected to the corresponding first brush member (21) or second brush member (22).

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 (103) and a fan module (104), wherein the floor brush module (105), the dust separation module (103) and the fan module (104) are arranged in sequence along the flow direction of the fluid, and the outlet end of the floor brush module (105) is the exhaust port (106) of the housing (1).

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

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