Noice reduction of a floor cleaning machine

Abstract

The present disclosure provides a floor cleaning machine, including: a clear water tank component having a concave installing chamber; a power component installed in the installing chamber, wherein the power component includes a first air inlet and a first air outlet, and the first air outlet is communicated with the installing chamber; a waste water tank component configured to match with the clear water tank component, wherein the power component is arranged between the clear water tank component and the waste water tank component, and the waste water tank component has a concave receiving chamber facing the power component; and at least one connecting component connected with an opening of the receiving chamber and having a through-hole communicated with the first air inlet. By extending an air intake channel of the power component and expanding an intake air by the receiving chamber, a noise of the floor cleaning machine can be reduced.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of steam cleaning equipment, and more particularly to a floor cleaning machine.BACKGROUND

[0002] A floor cleaning machine is a cleaning machine suitable for cleaning hard floors while absorbing waste water and removing the waste water from the site, which has advantages of environmental protection, energy saving and high efficiency. The floor cleaning machine is widely used in various fields of society, especially in places with vast hard surfaces such as stations, docks, airports, workshops, warehouses, schools, hospitals, restaurants and shopping malls. Using machinery instead of human labor for cleaning has been deeply rooted in heart of users.

[0003] At present, the floor cleaning machine on the market has high noise and cannot meet noise requirements of places such as hospitals and high-end venues. A small number of silent floor cleaning machines have problems such as frequent overheating, shutdown and damage due to unreasonable air duct design, which seriously bothers people's life and work.

[0004] Therefore, how to reduce the noise of the floor cleaning machine is an urgent technical problem that needs to be solved.SUMMARY

[0005] An objective of the present disclosure is to provide a floor cleaning machine, which can reduce a noise of the floor cleaning machine by extending an air intake channel of a power component and expanding an intake air by a receiving chamber.

[0006] In order to achieve above objective, an embodiment of the present disclosure provides a floor cleaning machine. The floor cleaning machine includes: a clear water tank component having a concave installing chamber; a power component installed in the installing chamber, wherein the power component includes a first air inlet and a first air outlet, and the first air outlet is communicated with the installing chamber; a waste water tank component configured to match with the clear water tank component, wherein the power component is arranged between the clear water tank component and the waste water tank component, and the waste water tank component has a concave receiving chamber facing the power component; and at least one connecting component connected with an opening of the receiving chamber and having a through-hole communicated with the first air inlet.

[0007] Optionally, the connecting component is a flange plate.

[0008] Optionally, the connecting component at least includes a first connecting component connected with the opening of the receiving chamber and a second connecting component connected with the first connecting component. A projection pattern of a through-hole of the first connecting component on a bottom of the receiving chamber does not coincide with a projection pattern of a through-hole of the second connecting component on the bottom of the receiving chamber.

[0009] Optionally, the power component further includes a first rubber port connected with the first air inlet and communicated with the first air inlet and a second rubber port connected with the first air outlet and communicated with the first air outlet. The first rubber port is in interference fit with the connecting component, and the second rubber port is interference fit with the clear water tank component.

[0010] Optionally, the waste water tank component includes a waste water tank body. The waste water tank body is provided with a channel passing through the waste water tank body and communicated with a bottom of the receiving chamber.

[0011] Optionally, a dimension of the channel in a direction perpendicular to an air flowing direction is smaller than a dimension of the receiving chamber in the direction perpendicular to the air flowing direction.

[0012] Optionally, the waste water tank body is further provided with an accessory groove extending from the bottom of the receiving chamber to an interior of the waste water tank body, and the channel is communicated with the bottom of the receiving chamber through the accessory groove.

[0013] Optionally, the waste water tank body further includes a noise reduction component arranged in the accessory groove, and the noise reduction component is detachably connected with the accessory groove.

[0014] Optionally, the noise reduction component includes an outer housing, and air flow holes are opened on two opposite surfaces of the outer housing. One of the air flow holes is communicated with the bottom of the receiving chamber, and the other one of the air flow holes is communicated with the channel.

[0015] Optionally, the waste water tank component further includes a liquid level system arranged on a surface of the waste water tank body, and the liquid level system and the receiving chamber are respectively located on two opposite surfaces of the waste water tank body.

[0016] Optionally, the clear water tank component includes a clear water tank body, and an inwardly concave installing groove is arranged on a surface of the clear water tank body. An inwardly concave chamber body is arranged on a bottom of the installing groove, and an opening of the chamber body is communicated with the bottom of the installing groove.

[0017] Optionally, the clear water tank component further includes a third connecting component configured to cover the opening of the chamber body, and a through-hole of the third connecting component is communicated with the first air outlet.

[0018] Optionally, the clear water tank component further includes a plurality of crosspieces arranged in the chamber body.

[0019] Optionally, the clear water tank component further includes a noise reduction component arranged in the chamber body, and the noise reduction component is detachably connected with the chamber body.

[0020] Optionally, the noise reduction component includes an outer housing, and air flow holes are opened on two opposite surfaces of the outer housing. One of the air flow holes is communicated with an external atmosphere, and the other one of the air flow holes is communicated with the first air outlet.

[0021] Optionally, the outer housing surrounds a sealed chamber, and a plurality of stopping strips parallel to each other are arranged in the sealed chamber. An inner wall of the outer housing and surfaces of the stopping strips are bonded with a sound-absorbing material.

[0022] Optionally, the power component includes an upper housing and a lower housing connected with each other, and the lower housing is provided with a first heat dissipation hole penetrating through the lower housing.

[0023] Optionally, the power component further includes a lower outer housing sleeved on an outer wall of the lower housing, and the lower outer housing is provided with a second heat dissipation hole penetrating through the lower outer housing. The first heat dissipation hole and the second heat dissipation hole are arranged on two opposite sides of the lower housing, and a center line of the first heat dissipation hole is parallel to a center line of the second heat dissipation hole.

[0024] Optionally, a hollow chamber is formed between an inner wall of the upper housing and an inner wall of the lower housing. A motor is arranged in the hollow chamber, and a plurality of fixing components is arranged between the motor and the hollow chamber.

[0025] Optionally, the lower outer housing is further provided with a second air inlet penetrating through the lower outer housing.

[0026] Optionally, the power component further includes an upper outer housing sleeved on an outer wall of the upper housing, and the upper outer housing is sealedly connected with the lower outer housing.

[0027] Compared with conventional technology, the embodiments of the present disclosure have following advantages.

[0028] The clear water tank component has a concave installing chamber, the power component is installed in the installing chamber, and the power component includes a first air inlet and a first air outlet. After assembling the waste water tank component and the clear water tank component, the power component is located between the waste water tank component and the clear water tank component, and the waste water tank component has a concave receiving chamber facing the power component. At least one connecting component is connected with the opening of the receiving chamber, and the through-hole of the connecting component is communicated with the first air inlet. With the presence of the receiving chamber, a distance of an intake air entering the power component from the first air inlet can be extended, and the intake air can be expanded by the receiving chamber, which can reduce a noise and expand an application range of the floor cleaning machine.BRIEF DESCRIPTION OF THE DRAWINGS

[0029] FIG. 1 is a cross-sectional view of a floor cleaning machine in a viewing direction according to an embodiment of the present disclosure; FIG. 2 is an enlarged view of part A in FIG. 1; FIG. 3 is a schematic structural view of a waste water tank component according to an embodiment of the present disclosure; FIG. 4 is a schematic external structural view of a power component according to an embodiment of the present disclosure; FIG.5 is a schematic structural view of an upper housing according to an embodiment of the present disclosure; FIG. 6 is an internal sectional view of a power component according to an embodiment of the present disclosure; FIG. 7 is an internal cross-sectional view of a power component according to another embodiment of the present disclosure; FIG. 8 is a schematic external structural view of the power component in FIG. 7; FIG. 9 is a cross-sectional view of a floor cleaning machine in another viewing direction according to an embodiment of the present disclosure; FIG. 10 is a cross-sectional view of a clear water tank component according to an embodiment of the present disclosure; FIG. 11 is a schematic external structural view of a clear water tank component according to an embodiment of the present disclosure; FIG. 12 is a schematic external structural view of a noise reduction component according to an embodiment of the present disclosure; and FIG. 13 is a schematic internal structural view of a noise reduction component according an embodiment of the present disclosure. DETAILED DESCRIPTION

[0030] As mentioned above, the structure of existing floor cleaning machine needs to be improved.

[0031] At present, a hand-pushed floor cleaning machine rarely has a silent structure, even though a sound-absorbing cotton is added around a vacuum motor to reduce a noise volume.

[0032] However, by adding the sound-absorbing cotton, on the one hand, the sound-absorbing effect is poor, and on the other hand, adding the sound-absorbing cotton increases the difficulty of assembling the floor cleaning machine, which limits the application of the floor cleaning machine.

[0033] Therefore, according to an embodiment of the present disclosure, an inwardly concave receiving chamber is provided on a surface of a water tank component facing a power component, and at least one connecting component is connected with an opening of the receiving chamber. A through-hole of the connecting component is communicated with the first air inlet. With the presence of the receiving chamber, a distance of an intake air entering the power component from the first air inlet can be extended, and the intake air can be expanded by the receiving chamber, which can reduce a noise and expand an application range.

[0034] In order to make above objectives, features and advantages of the present disclosure more obvious and understandable, specific embodiments of the present disclosure will be described in detail below in conjunction with the accompanying drawings.

[0035] Firstly, referring to FIGS. 1 to 3 and 6, a floor cleaning machine includes a clear water tank component 3, a power component 2 and a waste water tank component 1.

[0036] In some embodiments, the clear water tank component 3 has a concave installing chamber. The power component 2 is installed in the installing chamber. The power component 2 includes a first air inlet 2a and a first air outlet 2b. The first air outlet 2b is communicated with the installing chamber. The waste water tank component 1 is matched and assembled with the clear water tank component 3 so that the power component 2 is located between the clear water tank component 3 and the waste water tank component 1. A surface of the waste water tank component 1 facing the power component 2 has a concave receiving chamber 7. An opening of the receiving chamber 7 is connected with at least one connecting component 6, and a through-hole 6a of the connecting component 6 is communicated with the first air inlet 2a.

[0037] In some embodiments, an external air flow enters the waste water tank component 1, sequentially passes through the receiving chamber 7, the first air inlet 2a and the first air outlet 2b, and is discharged from an outlet of the clear water tank component 3. With the presence of the receiving chamber 7, a distance of the air flow entering the first air inlet 2a can be extended, and the air flow can be expanded by the receiving chamber 7, which can reduce a noise and expand an application range of the floor cleaning machine.

[0038] In some embodiments, the connecting component 6 is a flange plate.

[0039] In some embodiments, there are multiple connecting components 6. For example, there are two connecting components 6.

[0040] In other embodiments, the number of the connecting components 6 may also be one, three, four, etc., as long as there is sufficient space.

[0041] In some embodiments, the connecting component 6 includes a first connecting component 6 connected with the opening of the receiving chamber 7 and a second connecting component 6 connected with the first connecting component 6. A projection pattern of a through-hole 6a of the first connecting component 6 on a bottom of the receiving chamber 7 does not coincide with a projection pattern of a through-hole 6a of the second connecting component 6. The purpose of this design is to allow the air flow to flow through the through-hole of the first connecting component 6 and the through-hole of the second connecting component 6. As the projection pattern of the through-hole of the first connecting component 6 on the bottom of the receiving chamber 7 does not coincide with the projection pattern of the through-hole of the second connecting component 6 on the bottom of the receiving chamber 7, that is, the through-hole of the first connecting component 6 does not coincide with the through-hole of the second connecting component 6, a flowing path of the air flow can be increased, and a flowing time of the air flow can be prolonged, thus noise leakage can be reduced, and thus the noise can be reduced.

[0042] In some embodiments, the power component 2 further includes a first rubber port 29 and a second rubber port 21. The first rubber port 29 is communicated with the first air inlet 2a and communicated with the first air inlet 2a. The first rubber port 29 is in interference fit with the connecting component 6. The second rubber port 21 is connected with the first air outlet 2b and communicated with the first air outlet 2b. The second rubber port 21 is in interference fit with the clear water tank component 3.

[0043] In some embodiments, the reason for arranging the first rubber port 29 on the first air inlet 2a and arranging the second rubber port 21 on the first air outlet 2b is that after the assembly of the waste water tank component 1 and the clear water tank component 3, the power component 2 is located between the waste water tank component 1 and the clear water tank component 3, and there is no connection relationship between the power component 2 and the waste water tank component 1 and between the power component 2 and the clear water tank component 3. However, in order to ensure a sealed connection between the power component 2 and the waste water tank component 1 and between the power component 2 and the clear water tank component 3, the second rubber port 21 is arranged on the first air outlet 2b, and the first rubber port 29 is arranged on the first air inlet 2a, which utilizes elasticity and sealing property of rubber to achieve an interference fit between the first rubber port 29 and the connecting component (i.e., the first rubber port 29 abuts against the connecting component) and an interference fit between the second rubber port 21 and the clear water tank component 3 (i.e., the second rubber port 21 abuts against the clear water tank component 3), thereby achieving a sealed connection between the power component 2 and the waste water tank component 1 and between the power component 2 and the clear water tank component 3.

[0044] In some embodiments, referring to FIGS. 1 and 3, the waste water tank component 1 includes a waste water tank body 5. The waste water tank body 5 has a channel 5a passing through the waste water tank body 5, and the channel 5a is communicated with the bottom of the receiving chamber 7.

[0045] In some embodiments, referring to FIG. 2, a dimension d1 of the channel 5a in a direction perpendicular to an air flowing direction is smaller than a dimension d2 of the receiving chamber 7 in the direction perpendicular to the air flowing direction. By utilizing an expansion effect of the receiving chamber 7, the noise can be reduced.

[0046] In some embodiments, referring to FIG. 3, the waste water tank component 1 further includes a liquid level system 4 arranged on the waste water tank body 5. The liquid level system 4 and the receiving chamber 7 are respectively arranged on two opposite surfaces of the waste water tank body 5.

[0047] In some embodiments, referring to FIGS. 9 to 11, the clear water tank component 3 includes a clear water tank body 19. An inwardly concave installing groove 19a is arranged on a surface of the clear water tank body 19, and a bottom of the installing groove 19a has an inwardly concave chamber body 22. An opening of the chamber body 22 is communicated with the bottom of the installing groove 19a.

[0048] In some embodiments, the clear water tank component 3 further includes a third connecting component 20 covering the opening of the chamber body 22, and a through-hole 6a of the third connecting component 20 is communicated with the first air outlet 2b.

[0049] In some embodiments, the third connecting component 20 is a cover flange.

[0050] In some embodiments, the clear water tank component 3 further includes a plurality of crosspieces 22a arranged in the chamber body 22.

[0051] In some embodiments, a bottom of the chamber body 22 has an air outlet 3a communicated to an outside.

[0052] Specifically, the chamber body 22 with the plurality of crosspieces 22a is formed on the clear water tank body 19 by rotomolding. The third connecting component 20 seals and fixes the chamber body 22, and a layer of sound-absorbing material with a certain thickness is attached to the third connecting component 20. The chamber body 22, the third connecting component 20 and the sound-absorbing material form a water tank silencing component. The first air outlet of a working air duct of the power component 2 is connected with the water tank silencing component through the second rubber port 21. With the water tank silencing component, the noise of wind pressure can be further reduced.

[0053] In some embodiments, the air flow from the channel 5a passes through the receiving chamber 7, the first air inlet and the first air outlet, and then flows out from the air outlet 3a to the atmosphere. The flowing channel of the air flow is the working air duct of the power component 2.

[0054] In other embodiments, referring to FIGS. 12 and 13, the clear water tank component 3 further includes a noise reduction component 25 arranged in the chamber body 22, and the noise reduction component 25 is detachably connected with the chamber body 22.

[0055] In some embodiments, the noise reduction component 25 includes an outer housing 26, and air flow holes 26a are opened on two opposite surfaces of the outer housing 26. One of the air flow holes 26a is communicated with an external atmosphere, and the other one of the air flow holes 26a is communicated with the first air outlet 2b.

[0056] In FIG. 13, arrows indicate a flowing direction of the air flow.

[0057] Specifically, the outer housing 26 surrounds a sealed chamber, and a plurality of stopping strips 27 parallel to each other are arranged in the sealed chamber. An inner wall of the outer housing 26 and surfaces of the stopping strips 27 are bonded with a sound-absorbing material 28.

[0058] The noise reduction component 25 is not limited by a shape of the water tank, and its shape can be more flexible and easy to disassemble and clean. The outer housing 26 and the stopping strips 27 can be connected by welding or screw fastening. The sound-absorbing material 28 can be pasted or fixed on the outer housing and the stopping strips. The air flow blowing in from one end and then blowing out from the other end can weaken high-frequency band in the noise.

[0059] In other embodiments, the waste water tank body 5 is further provided with the noise reduction component. Specifically, the waste water tank body 5 is further provided with an accessory groove extending from the bottom of the receiving chamber 7 to an interior of the waste water tank body 5. The accessory groove connects the channel 5a with the bottom of the receiving chamber 7. The noise reduction component is arranged in the accessory groove and is detachably connected with the accessory groove. Air flow holes are opened on two opposite surfaces of the outer housing of the noise reduction component. One of the air flow holes is communicated with the bottom of the receiving chamber 7, and the other one of the air flow holes is communicated with the channel 5a.

[0060] In some embodiments, referring to FIGS. 1 and 4 to 8, the power component 2 includes an upper housing 8 and a lower housing 9 connected with each other. The lower housing 9 is provided with a first heat dissipation hole ③ penetrating through the lower housing 9.

[0061] In some embodiments, referring to FIGS. 4 and 5, the upper housing 8 adopts a centrifugal fan housing design, which accelerates and then decelerates an air generated by an upper impeller after reversing direction, thereby increasing an air pressure of the vacuum motor. In the case of motors of the same power, the vacuum motor can achieve greater suction force. Thus, while maintaining the same suction force, the efficiency of the vacuum motor is higher and the power of the vacuum motor is smaller. Thus, a battery life of the floor cleaning machine can be improved, and the noise generated by a high-speed rotation of the vacuum motor can be reduced.

[0062] Specifically, referring to FIG. 6, a foam sealing strip 17 is arranged between the upper housing 8 and the lower housing 9 to seal the working air duct and prevent leakage of working air pressure.

[0063] In some embodiments, still referring to FIG. 6, the power component 2 further includes a lower outer housing 10 sleeved on an outer wall of the lower housing 9. The lower outer housing 10 is provided with a second heat dissipation hole ⑤ penetrating through the lower outer housing 10. The first heat dissipation hole ③ and the second heat dissipation hole ⑤ are arranged on two sides of the lower housing 9, and a center line of the first heat dissipation hole ③ is parallel to a center line of the second heat dissipation hole ⑤.

[0064] In some embodiments, the lower outer housing 10 is installed on the outer wall of the lower housing 9, and a rubber gasket 16 is provided between the lower outer housing 10 and the lower housing 9 to achieve a sealing effect, which can prevent mixed flow at an inlet and outlet of a heat dissipation duct of the vacuum motor and avoid the motor from burning out due to excessive temperature rise.

[0065] In some embodiments, a hollow chamber is formed between an inner wall of the upper housing 8 and an inner wall of the lower housing 9. A motor 14 is arranged in the hollow chamber, and a plurality of fixing components is arranged between the motor 14 and a wall of the hollow chamber.

[0066] Specifically, still referring to FIG. 6, the motor 14 is supported and fixed in the upper and lower housings through an upper cover 13, a support ring 12 and a lower support pad 15, which can greatly reduce vibration and imbalance caused by the high-speed rotation of the motor. The material of the upper cover 13, the support ring 12 and the lower support pad 15 may be EPDM having a soft hardness.

[0067] In some embodiments, the motor 14 may be a dry and wet motor, and the motor 14 has a cooling fan 11.

[0068] Still referring to FIG. 6, by rotating the cooling fan 11, a cooling air is drawn in from a bottom of the motor. The cooling air passes through an interior of the motor and carries out heat from all around. Specifically, the cooling air is drawn in from a second air inlet of the lower outer housing 10. The cooling air flows in the arrow direction from number ①, passes through number ②, exits through the first heat dissipation hole ③, passes through number ④, and is discharged from the second heat dissipation hole ⑤. The flowing channel of the air flow here is a heat dissipation air duct of the power component 2. Due to the extension of the heat dissipation air duct by the lower outer housing 10, the noise generated by the rotation of the motor 14 can be reduced.

[0069] In some embodiments, referring to FIG. 9, a baffler 18 is installed at an outlet of the heat dissipation air duct, which can prevent heat dissipation air from spraying directly outward and affecting customer use.

[0070] In some embodiments, referring to FIG.7, the power component 2 further includes an upper outer housing 23 sleeved on an outer wall of the upper housing 8, and a sealed connection is formed between the upper outer housing 23 and the lower outer housing 10.

[0071] Specifically, the sealed connection between the upper outer housing 23 and the lower outer hosing 10 is achieved by a foam sealing strip 17. With the upper outer housing 23 and the lower outer hosing 10, the power component 2 has a double-layer structure, which has an excellent sound insulation effect. Moreover, adding a sound-absorbing material 24 or creating a vacuum in the hollow chamber between the upper outer housing and the lower outer housing can further enhance the noise reduction effect.

[0072] Although the present disclosure has been disclosed above, the present disclosure is not limited thereto. Any changes and modifications may be made by those skilled in the art within the scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the scope defined by the claims.

Examples

Embodiment Construction

[0030]As mentioned above, the structure of existing floor cleaning machine needs to be improved.

[0031]At present, a hand-pushed floor cleaning machine rarely has a silent structure, even though a sound-absorbing cotton is added around a vacuum motor to reduce a noise volume.

[0032]However, by adding the sound-absorbing cotton, on the one hand, the sound-absorbing effect is poor, and on the other hand, adding the sound-absorbing cotton increases the difficulty of assembling the floor cleaning machine, which limits the application of the floor cleaning machine.

[0033]Therefore, according to an embodiment of the present disclosure, an inwardly concave receiving chamber is provided on a surface of a water tank component facing a power component, and at least one connecting component is connected with an opening of the receiving chamber. A through-hole of the connecting component is communicated with the first air inlet. With the presence of the receiving chamber, a distance of an intake a...

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of steam cleaning equipment, and more particularly to a floor cleaning machine.BACKGROUND

[0002] A floor cleaning machine is a cleaning machine suitable for cleaning hard floors while absorbing waste water and removing the waste water from the site, which has advantages of environmental protection, energy saving and high efficiency. The floor cleaning machine is widely used in various fields of society, especially in places with vast hard surfaces such as stations, docks, airports, workshops, warehouses, schools, hospitals, restaurants and shopping malls. Using machinery instead of human labor for cleaning has been deeply rooted in heart of users.

[0003] At present, the floor cleaning machine on the market has high noise and cannot meet noise requirements of places such as hospitals and high-end venues. A small number of silent floor cleaning machines have problems such as frequent overheating, shutdown and damage due to unreasonable air duct design, which seriously bothers people's life and work.

[0004] Therefore, how to reduce the noise of the floor cleaning machine is an urgent technical problem that needs to be solved.SUMMARY

[0005] An objective of the present disclosure is to provide a floor cleaning machine, which can reduce a noise of the floor cleaning machine by extending an air intake channel of a power component and expanding an intake air by a receiving chamber.

[0006] In order to achieve above objective, an embodiment of the present disclosure provides a floor cleaning machine. The floor cleaning machine includes: a clear water tank component having a concave installing chamber; a power component installed in the installing chamber, wherein the power component includes a first air inlet and a first air outlet, and the first air outlet is communicated with the installing chamber; a waste water tank component configured to match with the clear water tank component, wherein the power component is arranged between the clear water tank component and the waste water tank component, and the waste water tank component has a concave receiving chamber facing the power component; and at least one connecting component connected with an opening of the receiving chamber and having a through-hole communicated with the first air inlet.

[0007] Optionally, the connecting component is a flange plate.

[0008] Optionally, the connecting component at least includes a first connecting component connected with the opening of the receiving chamber and a second connecting component connected with the first connecting component. A projection pattern of a through-hole of the first connecting component on a bottom of the receiving chamber does not coincide with a projection pattern of a through-hole of the second connecting component on the bottom of the receiving chamber.

[0009] Optionally, the power component further includes a first rubber port connected with the first air inlet and communicated with the first air inlet and a second rubber port connected with the first air outlet and communicated with the first air outlet. The first rubber port is in interference fit with the connecting component, and the second rubber port is interference fit with the clear water tank component.

[0010] Optionally, the waste water tank component includes a waste water tank body. The waste water tank body is provided with a channel passing through the waste water tank body and communicated with a bottom of the receiving chamber.

[0011] Optionally, a dimension of the channel in a direction perpendicular to an air flowing direction is smaller than a dimension of the receiving chamber in the direction perpendicular to the air flowing direction.

[0012] Optionally, the waste water tank body is further provided with an accessory groove extending from the bottom of the receiving chamber to an interior of the waste water tank body, and the channel is communicated with the bottom of the receiving chamber through the accessory groove.

[0013] Optionally, the waste water tank body further includes a noise reduction component arranged in the accessory groove, and the noise reduction component is detachably connected with the accessory groove.

[0014] Optionally, the noise reduction component includes an outer housing, and air flow holes are opened on two opposite surfaces of the outer housing. One of the air flow holes is communicated with the bottom of the receiving chamber, and the other one of the air flow holes is communicated with the channel.

[0015] Optionally, the waste water tank component further includes a liquid level system arranged on a surface of the waste water tank body, and the liquid level system and the receiving chamber are respectively located on two opposite surfaces of the waste water tank body.

[0016] Optionally, the clear water tank component includes a clear water tank body, and an inwardly concave installing groove is arranged on a surface of the clear water tank body. An inwardly concave chamber body is arranged on a bottom of the installing groove, and an opening of the chamber body is communicated with the bottom of the installing groove.

[0017] Optionally, the clear water tank component further includes a third connecting component configured to cover the opening of the chamber body, and a through-hole of the third connecting component is communicated with the first air outlet.

[0018] Optionally, the clear water tank component further includes a plurality of crosspieces arranged in the chamber body.

[0019] Optionally, the clear water tank component further includes a noise reduction component arranged in the chamber body, and the noise reduction component is detachably connected with the chamber body.

[0020] Optionally, the noise reduction component includes an outer housing, and air flow holes are opened on two opposite surfaces of the outer housing. One of the air flow holes is communicated with an external atmosphere, and the other one of the air flow holes is communicated with the first air outlet.

[0021] Optionally, the outer housing surrounds a sealed chamber, and a plurality of stopping strips parallel to each other are arranged in the sealed chamber. An inner wall of the outer housing and surfaces of the stopping strips are bonded with a sound-absorbing material.

[0022] Optionally, the power component includes an upper housing and a lower housing connected with each other, and the lower housing is provided with a first heat dissipation hole penetrating through the lower housing.

[0023] Optionally, the power component further includes a lower outer housing sleeved on an outer wall of the lower housing, and the lower outer housing is provided with a second heat dissipation hole penetrating through the lower outer housing. The first heat dissipation hole and the second heat dissipation hole are arranged on two opposite sides of the lower housing, and a center line of the first heat dissipation hole is parallel to a center line of the second heat dissipation hole.

[0024] Optionally, a hollow chamber is formed between an inner wall of the upper housing and an inner wall of the lower housing. A motor is arranged in the hollow chamber, and a plurality of fixing components is arranged between the motor and the hollow chamber.

[0025] Optionally, the lower outer housing is further provided with a second air inlet penetrating through the lower outer housing.

[0026] Optionally, the power component further includes an upper outer housing sleeved on an outer wall of the upper housing, and the upper outer housing is sealedly connected with the lower outer housing.

[0027] Compared with conventional technology, the embodiments of the present disclosure have following advantages.

[0028] The clear water tank component has a concave installing chamber, the power component is installed in the installing chamber, and the power component includes a first air inlet and a first air outlet. After assembling the waste water tank component and the clear water tank component, the power component is located between the waste water tank component and the clear water tank component, and the waste water tank component has a concave receiving chamber facing the power component. At least one connecting component is connected with the opening of the receiving chamber, and the through-hole of the connecting component is communicated with the first air inlet. With the presence of the receiving chamber, a distance of an intake air entering the power component from the first air inlet can be extended, and the intake air can be expanded by the receiving chamber, which can reduce a noise and expand an application range of the floor cleaning machine.BRIEF DESCRIPTION OF THE DRAWINGS

[0029] FIG. 1 is a cross-sectional view of a floor cleaning machine in a viewing direction according to an embodiment of the present disclosure; FIG. 2 is an enlarged view of part A in FIG. 1; FIG. 3 is a schematic structural view of a waste water tank component according to an embodiment of the present disclosure; FIG. 4 is a schematic external structural view of a power component according to an embodiment of the present disclosure; FIG.5 is a schematic structural view of an upper housing according to an embodiment of the present disclosure; FIG. 6 is an internal sectional view of a power component according to an embodiment of the present disclosure; FIG. 7 is an internal cross-sectional view of a power component according to another embodiment of the present disclosure; FIG. 8 is a schematic external structural view of the power component in FIG. 7; FIG. 9 is a cross-sectional view of a floor cleaning machine in another viewing direction according to an embodiment of the present disclosure; FIG. 10 is a cross-sectional view of a clear water tank component according to an embodiment of the present disclosure; FIG. 11 is a schematic external structural view of a clear water tank component according to an embodiment of the present disclosure; FIG. 12 is a schematic external structural view of a noise reduction component according to an embodiment of the present disclosure; and FIG. 13 is a schematic internal structural view of a noise reduction component according an embodiment of the present disclosure. DETAILED DESCRIPTION

[0030] As mentioned above, the structure of existing floor cleaning machine needs to be improved.

[0031] At present, a hand-pushed floor cleaning machine rarely has a silent structure, even though a sound-absorbing cotton is added around a vacuum motor to reduce a noise volume.

[0032] However, by adding the sound-absorbing cotton, on the one hand, the sound-absorbing effect is poor, and on the other hand, adding the sound-absorbing cotton increases the difficulty of assembling the floor cleaning machine, which limits the application of the floor cleaning machine.

[0033] Therefore, according to an embodiment of the present disclosure, an inwardly concave receiving chamber is provided on a surface of a water tank component facing a power component, and at least one connecting component is connected with an opening of the receiving chamber. A through-hole of the connecting component is communicated with the first air inlet. With the presence of the receiving chamber, a distance of an intake air entering the power component from the first air inlet can be extended, and the intake air can be expanded by the receiving chamber, which can reduce a noise and expand an application range.

[0034] In order to make above objectives, features and advantages of the present disclosure more obvious and understandable, specific embodiments of the present disclosure will be described in detail below in conjunction with the accompanying drawings.

[0035] Firstly, referring to FIGS. 1 to 3 and 6, a floor cleaning machine includes a clear water tank component 3, a power component 2 and a waste water tank component 1.

[0036] In some embodiments, the clear water tank component 3 has a concave installing chamber. The power component 2 is installed in the installing chamber. The power component 2 includes a first air inlet 2a and a first air outlet 2b. The first air outlet 2b is communicated with the installing chamber. The waste water tank component 1 is matched and assembled with the clear water tank component 3 so that the power component 2 is located between the clear water tank component 3 and the waste water tank component 1. A surface of the waste water tank component 1 facing the power component 2 has a concave receiving chamber 7. An opening of the receiving chamber 7 is connected with at least one connecting component 6, and a through-hole 6a of the connecting component 6 is communicated with the first air inlet 2a.

[0037] In some embodiments, an external air flow enters the waste water tank component 1, sequentially passes through the receiving chamber 7, the first air inlet 2a and the first air outlet 2b, and is discharged from an outlet of the clear water tank component 3. With the presence of the receiving chamber 7, a distance of the air flow entering the first air inlet 2a can be extended, and the air flow can be expanded by the receiving chamber 7, which can reduce a noise and expand an application range of the floor cleaning machine.

[0038] In some embodiments, the connecting component 6 is a flange plate.

[0039] In some embodiments, there are multiple connecting components 6. For example, there are two connecting components 6.

[0040] In other embodiments, the number of the connecting components 6 may also be one, three, four, etc., as long as there is sufficient space.

[0041] In some embodiments, the connecting component 6 includes a first connecting component 6 connected with the opening of the receiving chamber 7 and a second connecting component 6 connected with the first connecting component 6. A projection pattern of a through-hole 6a of the first connecting component 6 on a bottom of the receiving chamber 7 does not coincide with a projection pattern of a through-hole 6a of the second connecting component 6. The purpose of this design is to allow the air flow to flow through the through-hole of the first connecting component 6 and the through-hole of the second connecting component 6. As the projection pattern of the through-hole of the first connecting component 6 on the bottom of the receiving chamber 7 does not coincide with the projection pattern of the through-hole of the second connecting component 6 on the bottom of the receiving chamber 7, that is, the through-hole of the first connecting component 6 does not coincide with the through-hole of the second connecting component 6, a flowing path of the air flow can be increased, and a flowing time of the air flow can be prolonged, thus noise leakage can be reduced, and thus the noise can be reduced.

[0042] In some embodiments, the power component 2 further includes a first rubber port 29 and a second rubber port 21. The first rubber port 29 is communicated with the first air inlet 2a and communicated with the first air inlet 2a. The first rubber port 29 is in interference fit with the connecting component 6. The second rubber port 21 is connected with the first air outlet 2b and communicated with the first air outlet 2b. The second rubber port 21 is in interference fit with the clear water tank component 3.

[0043] In some embodiments, the reason for arranging the first rubber port 29 on the first air inlet 2a and arranging the second rubber port 21 on the first air outlet 2b is that after the assembly of the waste water tank component 1 and the clear water tank component 3, the power component 2 is located between the waste water tank component 1 and the clear water tank component 3, and there is no connection relationship between the power component 2 and the waste water tank component 1 and between the power component 2 and the clear water tank component 3. However, in order to ensure a sealed connection between the power component 2 and the waste water tank component 1 and between the power component 2 and the clear water tank component 3, the second rubber port 21 is arranged on the first air outlet 2b, and the first rubber port 29 is arranged on the first air inlet 2a, which utilizes elasticity and sealing property of rubber to achieve an interference fit between the first rubber port 29 and the connecting component (i.e., the first rubber port 29 abuts against the connecting component) and an interference fit between the second rubber port 21 and the clear water tank component 3 (i.e., the second rubber port 21 abuts against the clear water tank component 3), thereby achieving a sealed connection between the power component 2 and the waste water tank component 1 and between the power component 2 and the clear water tank component 3.

[0044] In some embodiments, referring to FIGS. 1 and 3, the waste water tank component 1 includes a waste water tank body 5. The waste water tank body 5 has a channel 5a passing through the waste water tank body 5, and the channel 5a is communicated with the bottom of the receiving chamber 7.

[0045] In some embodiments, referring to FIG. 2, a dimension d1 of the channel 5a in a direction perpendicular to an air flowing direction is smaller than a dimension d2 of the receiving chamber 7 in the direction perpendicular to the air flowing direction. By utilizing an expansion effect of the receiving chamber 7, the noise can be reduced.

[0046] In some embodiments, referring to FIG. 3, the waste water tank component 1 further includes a liquid level system 4 arranged on the waste water tank body 5. The liquid level system 4 and the receiving chamber 7 are respectively arranged on two opposite surfaces of the waste water tank body 5.

[0047] In some embodiments, referring to FIGS. 9 to 11, the clear water tank component 3 includes a clear water tank body 19. An inwardly concave installing groove 19a is arranged on a surface of the clear water tank body 19, and a bottom of the installing groove 19a has an inwardly concave chamber body 22. An opening of the chamber body 22 is communicated with the bottom of the installing groove 19a.

[0048] In some embodiments, the clear water tank component 3 further includes a third connecting component 20 covering the opening of the chamber body 22, and a through-hole 6a of the third connecting component 20 is communicated with the first air outlet 2b.

[0049] In some embodiments, the third connecting component 20 is a cover flange.

[0050] In some embodiments, the clear water tank component 3 further includes a plurality of crosspieces 22a arranged in the chamber body 22.

[0051] In some embodiments, a bottom of the chamber body 22 has an air outlet 3a communicated to an outside.

[0052] Specifically, the chamber body 22 with the plurality of crosspieces 22a is formed on the clear water tank body 19 by rotomolding. The third connecting component 20 seals and fixes the chamber body 22, and a layer of sound-absorbing material with a certain thickness is attached to the third connecting component 20. The chamber body 22, the third connecting component 20 and the sound-absorbing material form a water tank silencing component. The first air outlet of a working air duct of the power component 2 is connected with the water tank silencing component through the second rubber port 21. With the water tank silencing component, the noise of wind pressure can be further reduced.

[0053] In some embodiments, the air flow from the channel 5a passes through the receiving chamber 7, the first air inlet and the first air outlet, and then flows out from the air outlet 3a to the atmosphere. The flowing channel of the air flow is the working air duct of the power component 2.

[0054] In other embodiments, referring to FIGS. 12 and 13, the clear water tank component 3 further includes a noise reduction component 25 arranged in the chamber body 22, and the noise reduction component 25 is detachably connected with the chamber body 22.

[0055] In some embodiments, the noise reduction component 25 includes an outer housing 26, and air flow holes 26a are opened on two opposite surfaces of the outer housing 26. One of the air flow holes 26a is communicated with an external atmosphere, and the other one of the air flow holes 26a is communicated with the first air outlet 2b.

[0056] In FIG. 13, arrows indicate a flowing direction of the air flow.

[0057] Specifically, the outer housing 26 surrounds a sealed chamber, and a plurality of stopping strips 27 parallel to each other are arranged in the sealed chamber. An inner wall of the outer housing 26 and surfaces of the stopping strips 27 are bonded with a sound-absorbing material 28.

[0058] The noise reduction component 25 is not limited by a shape of the water tank, and its shape can be more flexible and easy to disassemble and clean. The outer housing 26 and the stopping strips 27 can be connected by welding or screw fastening. The sound-absorbing material 28 can be pasted or fixed on the outer housing and the stopping strips. The air flow blowing in from one end and then blowing out from the other end can weaken high-frequency band in the noise.

[0059] In other embodiments, the waste water tank body 5 is further provided with the noise reduction component. Specifically, the waste water tank body 5 is further provided with an accessory groove extending from the bottom of the receiving chamber 7 to an interior of the waste water tank body 5. The accessory groove connects the channel 5a with the bottom of the receiving chamber 7. The noise reduction component is arranged in the accessory groove and is detachably connected with the accessory groove. Air flow holes are opened on two opposite surfaces of the outer housing of the noise reduction component. One of the air flow holes is communicated with the bottom of the receiving chamber 7, and the other one of the air flow holes is communicated with the channel 5a.

[0060] In some embodiments, referring to FIGS. 1 and 4 to 8, the power component 2 includes an upper housing 8 and a lower housing 9 connected with each other. The lower housing 9 is provided with a first heat dissipation hole ③ penetrating through the lower housing 9.

[0061] In some embodiments, referring to FIGS. 4 and 5, the upper housing 8 adopts a centrifugal fan housing design, which accelerates and then decelerates an air generated by an upper impeller after reversing direction, thereby increasing an air pressure of the vacuum motor. In the case of motors of the same power, the vacuum motor can achieve greater suction force. Thus, while maintaining the same suction force, the efficiency of the vacuum motor is higher and the power of the vacuum motor is smaller. Thus, a battery life of the floor cleaning machine can be improved, and the noise generated by a high-speed rotation of the vacuum motor can be reduced.

[0062] Specifically, referring to FIG. 6, a foam sealing strip 17 is arranged between the upper housing 8 and the lower housing 9 to seal the working air duct and prevent leakage of working air pressure.

[0063] In some embodiments, still referring to FIG. 6, the power component 2 further includes a lower outer housing 10 sleeved on an outer wall of the lower housing 9. The lower outer housing 10 is provided with a second heat dissipation hole ⑤ penetrating through the lower outer housing 10. The first heat dissipation hole ③ and the second heat dissipation hole ⑤ are arranged on two sides of the lower housing 9, and a center line of the first heat dissipation hole ③ is parallel to a center line of the second heat dissipation hole ⑤.

[0064] In some embodiments, the lower outer housing 10 is installed on the outer wall of the lower housing 9, and a rubber gasket 16 is provided between the lower outer housing 10 and the lower housing 9 to achieve a sealing effect, which can prevent mixed flow at an inlet and outlet of a heat dissipation duct of the vacuum motor and avoid the motor from burning out due to excessive temperature rise.

[0065] In some embodiments, a hollow chamber is formed between an inner wall of the upper housing 8 and an inner wall of the lower housing 9. A motor 14 is arranged in the hollow chamber, and a plurality of fixing components is arranged between the motor 14 and a wall of the hollow chamber.

[0066] Specifically, still referring to FIG. 6, the motor 14 is supported and fixed in the upper and lower housings through an upper cover 13, a support ring 12 and a lower support pad 15, which can greatly reduce vibration and imbalance caused by the high-speed rotation of the motor. The material of the upper cover 13, the support ring 12 and the lower support pad 15 may be EPDM having a soft hardness.

[0067] In some embodiments, the motor 14 may be a dry and wet motor, and the motor 14 has a cooling fan 11.

[0068] Still referring to FIG. 6, by rotating the cooling fan 11, a cooling air is drawn in from a bottom of the motor. The cooling air passes through an interior of the motor and carries out heat from all around. Specifically, the cooling air is drawn in from a second air inlet of the lower outer housing 10. The cooling air flows in the arrow direction from number ①, passes through number ②, exits through the first heat dissipation hole ③, passes through number ④, and is discharged from the second heat dissipation hole ⑤. The flowing channel of the air flow here is a heat dissipation air duct of the power component 2. Due to the extension of the heat dissipation air duct by the lower outer housing 10, the noise generated by the rotation of the motor 14 can be reduced.

[0069] In some embodiments, referring to FIG. 9, a baffler 18 is installed at an outlet of the heat dissipation air duct, which can prevent heat dissipation air from spraying directly outward and affecting customer use.

[0070] In some embodiments, referring to FIG.7, the power component 2 further includes an upper outer housing 23 sleeved on an outer wall of the upper housing 8, and a sealed connection is formed between the upper outer housing 23 and the lower outer housing 10.

[0071] Specifically, the sealed connection between the upper outer housing 23 and the lower outer hosing 10 is achieved by a foam sealing strip 17. With the upper outer housing 23 and the lower outer hosing 10, the power component 2 has a double-layer structure, which has an excellent sound insulation effect. Moreover, adding a sound-absorbing material 24 or creating a vacuum in the hollow chamber between the upper outer housing and the lower outer housing can further enhance the noise reduction effect.

[0072] Although the present disclosure has been disclosed above, the present disclosure is not limited thereto. Any changes and modifications may be made by those skilled in the art within the scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the scope defined by the claims.

Examples

Embodiment Construction

[0030]As mentioned above, the structure of existing floor cleaning machine needs to be improved.

[0031]At present, a hand-pushed floor cleaning machine rarely has a silent structure, even though a sound-absorbing cotton is added around a vacuum motor to reduce a noise volume.

[0032]However, by adding the sound-absorbing cotton, on the one hand, the sound-absorbing effect is poor, and on the other hand, adding the sound-absorbing cotton increases the difficulty of assembling the floor cleaning machine, which limits the application of the floor cleaning machine.

[0033]Therefore, according to an embodiment of the present disclosure, an inwardly concave receiving chamber is provided on a surface of a water tank component facing a power component, and at least one connecting component is connected with an opening of the receiving chamber. A through-hole of the connecting component is communicated with the first air inlet. With the presence of the receiving chamber, a distance of an intake a...

Claims

1. A floor cleaning machine, comprising: a clear water tank component having a concave installing chamber; a power component installed in the installing chamber, wherein the power component comprises a first air inlet and a first air outlet, and the first air outlet is communicated with the installing chamber; a waste water tank component configured to match with the clear water tank component, wherein the power component is arranged between the clear water tank component and the waste water tank component, and the waste water tank component has a concave receiving chamber facing the power component; and at least one connecting component connected with an opening of the receiving chamber and having a through-hole communicated with the first air inlet.

2. The floor cleaning machine according to claim 1, wherein the connecting component is a flange plate, or the connecting component at least comprises a first connecting component connected with the opening of the receiving chamber and a second connecting component connected with the first connecting component, and a projection pattern of a through-hole of the first connecting component on a bottom of the receiving chamber does not coincide with a projection pattern of a through-hole of the second connecting component on the bottom of the receiving chamber.

3. The floor cleaning machine according to claim 1 or claim 2, wherein the power component further comprises a first rubber port connected with the first air inlet and communicated with the first air inlet and a second rubber port connected with the first air outlet and communicated with the first air outlet, wherein the first rubber port is in interference fit with the connecting component, and the second rubber port is interference fit with the clear water tank component.

4. The floor cleaning machine according to any one of claims 1 to 3, wherein the waste water tank component comprises a waste water tank body, and the waste water tank body is provided with a channel passing through the waste water tank body and communicated with a bottom of the receiving chamber.

5. The floor cleaning machine according to claim 4, wherein a dimension of the channel in a direction perpendicular to an air flowing direction is smaller than a dimension of the receiving chamber in the direction perpendicular to the air flowing direction, or wherein the waste water tank body is further provided with an accessory groove extending from the bottom of the receiving chamber to an interior of the waste water tank body, and the channel is communicated with the bottom of the receiving chamber through the accessory groove.

6. The floor cleaning machine according to claim 5, wherein the waste water tank body further comprises a noise reduction component arranged in the accessory groove, and the noise reduction component is detachably connected with the accessory groove, or wherein the waste water tank component further comprises a liquid level system arranged on a surface of the waste water tank body, and the liquid level system and the receiving chamber are respectively arranged on two opposite surfaces of the waste water tank body.

7. The floor cleaning machine according to claim 6, wherein the noise reduction component comprises an outer housing, and air flow holes are opened on two opposite surfaces of the outer housing, wherein one of the air flow holes is communicated with the bottom of the receiving chamber, and the other one of the air flow holes is communicated with the channel.

8. The floor cleaning machine according to any one of claims 1 to 7, wherein the clear water tank component comprises a clear water tank body, and an inwardly concave installing groove is arranged on a surface of the clear water tank body, wherein an inwardly concave chamber body is arranged on a bottom of the installing groove, and an opening of the chamber body is communicated with the bottom of the installing groove.

9. The floor cleaning machine according to claim 8, wherein the clear water tank component further comprises a third connecting component configured to cover the opening of the chamber body, and a through-hole of the third connecting component is communicated with the first air outlet, or wherein the clear water tank component further comprises a plurality of crosspieces arranged in the chamber body, or wherein the clear water tank component further comprises a noise reduction component arranged in the chamber body, and the noise reduction component is detachably connected with the chamber body.

10. The floor cleaning machine according to claim 9, wherein the noise reduction component comprises an outer housing, and air flow holes are opened on two opposite surfaces of the outer housing, wherein one of the air flow holes is communicated with an external atmosphere, and the other one of the air flow holes is communicated with the first air outlet.

11. The floor cleaning machine according to any one of claims 7 to 10, wherein the outer housing surrounds a sealed chamber, and a plurality of stopping strips parallel to each other are arranged in the sealed chamber, wherein an inner wall of the outer housing and surfaces of the stopping strips are bonded with a sound-absorbing material.

12. The floor cleaning machine according to any one of claims 1 to 11, wherein the power component comprises an upper housing and a lower housing connected with each other, and the lower housing is provided with a first heat dissipation hole penetrating through the lower housing.

13. The floor cleaning machine according to claim 12, wherein the power component further comprises a lower outer housing sleeved on an outer wall of the lower housing, and the lower outer housing is provided with a second heat dissipation hole penetrating through the lower outer housing, wherein the first heat dissipation hole and the second heat dissipation hole are arranged on two opposite sides of the lower housing, and a center line of the first heat dissipation hole is parallel to a center line of the second heat dissipation hole.

14. The floor cleaning machine according to claim 12, wherein a hollow chamber is formed between an inner wall of the upper housing and an inner wall of the lower housing, wherein a motor is arranged in the hollow chamber, and a plurality of fixing components is arranged between the motor and the hollow chamber.

15. The floor cleaning machine according to claim 13, wherein the lower outer housing is further provided with a second air inlet penetrating through the lower outer housing, or wherein the power component further comprises an upper outer housing sleeved on an outer wall of the upper housing, and the upper outer housing is sealedly connected with the lower outer housing.

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