Floor scrubber

Abstract

The utility model provides a scrubber, which comprises a clean water tank component, a water tank component and a water tank component, the power assembly is mounted in the mounting cavity and comprises a first air inlet and a first air outlet, and the first air outlet is communicated with the mounting cavity; the sewage tank assembly is matched with the clear water tank assembly, the power assembly is located between the clear water tank assembly and the sewage tank assembly, and the surface, facing the power assembly, of the sewage tank assembly is provided with a concave containing cavity; the at least one connecting piece is connected with the opening of the accommodating cavity, and a through hole in the connecting piece is communicated with the first air inlet; the air inlet channel of the power assembly is prolonged, the containing cavity has the air inlet expansion effect, and therefore the effect of reducing noise of the floor washing machine is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of steam cleaning equipment, in particular to a floor scrubber. Background Art

[0002] A floor scrubber is a cleaning machine designed to clean hard surfaces while simultaneously sucking up wastewater and removing it from the site. It boasts environmentally friendly, energy-efficient, and highly efficient features. Its use has become widespread across various sectors, particularly in areas with extensive hard surfaces such as stations, docks, airports, workshops, warehouses, schools, hospitals, restaurants, and shopping malls. The concept of replacing manual cleaning with mechanical cleaning has become deeply rooted in popular belief.

[0003] Currently, common floor scrubbers on the market are noisy and cannot meet the requirements of noise-sensitive venues, such as hospitals and high-end establishments. A few silent floor scrubbers, due to improper airflow design, frequently overheat, shut down, and even fail, seriously disrupting people's lives and work.

[0004] Therefore, how to reduce the noise of the floor scrubber is a technical problem that needs to be solved urgently. Utility Model Content

[0005] The problem solved by the utility model is to provide a floor scrubber, which reduces the noise of the floor scrubber by extending the air inlet passage of the power component and allowing the accommodating cavity to have the effect of air intake expansion.

[0006] To solve the above problems, the present utility model provides a floor scrubber, comprising a clean water tank assembly having a recessed mounting cavity; a power assembly installed in the mounting cavity, the power assembly comprising a first air inlet and a first air outlet, the first air outlet being connected to the mounting cavity; a sewage tank assembly matching the clean water tank assembly, the power assembly being located between the clean water tank assembly and the sewage tank assembly, the surface of the sewage tank assembly facing the power assembly having a recessed accommodating cavity; and at least one connecting member connected to an opening of the accommodating cavity, the through hole on the connecting member being connected to the first air inlet.

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

[0008] Optionally, when there are multiple connectors, the connectors include at least a first connector connected to the opening of the accommodating cavity and a second connector connected to the first connector, and the projection pattern of the through hole of the first connector on the bottom of the accommodating cavity does not overlap with the projection pattern of the through hole of the second connector on the bottom of the accommodating cavity.

[0009] Optionally, it further includes: a first rubber port connected to and communicating with the first air inlet, and the first rubber port is in interference fit with the connecting member; a second rubber port connected to and communicating with the first air outlet, and the second rubber port is in interference fit with the water tank assembly.

[0010] Optionally, the sewage tank assembly includes a sewage tank body, and a channel penetrating the sewage tank body is provided in the sewage tank body, and the channel communicates with the bottom of the accommodating cavity.

[0011] Optionally, the size of the channel in the direction perpendicular to the air flow direction is smaller than the size of the accommodating cavity in the direction perpendicular to the air flow direction.

[0012] Optionally, the sewage tank body further has an accessory slot extending from the bottom of the accommodating cavity into the interior of the sewage tank body, and the accessory slot communicates the channel with the bottom of the accommodating cavity.

[0013] Optionally, it further includes a noise reduction component located in the accessory slot, and the noise reduction component is detachably connected to the accessory slot.

[0014] Optionally, the noise reduction component includes a housing, and air flow holes are formed on opposite surfaces of the housing. One air flow hole communicates with the bottom of the accommodating cavity, and the other air flow hole communicates with the channel.

[0015] Optionally, it further includes a liquid level system located on the surface of the sewage tank body, and the liquid level system and the accommodating cavity are respectively located on opposite surfaces of the sewage tank body.

[0016] Optionally, the water tank assembly includes a water tank body, and the surface of the water tank body has the installation slot recessed inward. The bottom of the installation slot has a cavity recessed inward, and the opening of the cavity communicates with the bottom of the installation slot.

[0017] Optionally, it further includes: a third connecting member covering the opening surface of the cavity, and the through hole of the third connecting member communicates with the first air outlet.

[0018] Optionally, it further includes: a plurality of cross baffles located in the cavity.

[0019] Optionally, it further includes: a noise reduction component located in the cavity, and the noise reduction component is detachably connected to the cavity.

[0020] Optionally, the noise reduction component includes a housing, and air flow holes are formed on opposite surfaces of the housing. One air flow hole communicates with the external atmosphere, and the other air flow hole communicates with the first air outlet.

[0021] Optionally, the outer shell encloses a sealed cavity, and there are several parallel baffles in the sealed cavity. Sound-absorbing materials are adhered to the inner wall of the outer shell and the surface of the baffles.

[0022] Optionally, the power assembly includes an upper shell and a lower shell that are connected to each other. The surface of the lower shell has a first heat dissipation hole that penetrates the lower shell.

[0023] Optionally, it further includes a lower outer shell sleeved on the outer wall of the lower shell. The lower outer shell has a second heat dissipation hole that penetrates the lower outer shell. The first heat dissipation hole and the second heat dissipation hole are respectively located on both sides of the lower shell, and the center line of the first heat dissipation hole is parallel to the center line of the second heat dissipation hole.

[0024] Optionally, a cavity is formed between the inner wall of the upper shell and the inner wall of the lower shell. There is a motor in the cavity, and there are multiple fixing parts between the motor and the wall of the cavity.

[0025] Optionally, the lower outer shell also has a second air inlet that penetrates the lower outer shell.

[0026] Optionally, it further includes an upper outer shell sleeved on the outer wall of the upper shell. The upper outer shell is hermetically connected to the lower outer shell.

[0027] Compared with the prior art, the technical solution of the present utility model has the following advantages:

[0028] The water tank assembly has a sunken installation cavity. The power assembly is installed in the installation cavity. The first air outlet and the first air inlet of the power assembly, after the sewage tank assembly and the water tank assembly are matched and installed, the power assembly is located between the sewage tank assembly and the water tank assembly. The surface of the sewage tank assembly facing the power assembly has a sunken receiving cavity. At least one connecting piece is connected to the opening of the receiving cavity. The through hole on the connecting piece is communicated with the first air inlet. Due to the existence of the receiving cavity, the distance for the gas to enter the power assembly from the first air inlet is extended, and the receiving cavity has the effect of air intake expansion, which plays a role in reducing noise and expanding the usage range of the floor washer. Description of the Drawings

[0029] Figure 1 It is a cross-sectional view of a floor washer in a view direction in an embodiment of the present utility model;

[0030] Figure 2 It is Figure 1 An enlarged view at A;

[0031] Figure 3 It is a structural schematic diagram of a sewage component in an embodiment of the present utility model;

[0032] Figure 4 It is an external structural schematic diagram of a power component in an embodiment of the present utility model;

[0033] Figure 5 External structure diagram of the upper shell in an embodiment of the present invention;

[0034] Figure 6 Internal cross-sectional view of the power assembly in an embodiment of the present utility model;

[0035] Figure 7 Internal cross-sectional view of the power assembly in another embodiment of the present utility model;

[0036] Figure 8 For Figure 7 External structure schematic diagram of the power assembly;

[0037] Figure 9 Cross-sectional view of the floor washer in another view direction of the present utility model;

[0038] Figure 10 Cross-sectional view of the clean water tank assembly in an embodiment of the present utility model;

[0039] Figure 11 External structure diagram of the clean water tank assembly in an embodiment of the present utility model;

[0040] Figure 12 。 External structure diagram of the noise reduction assembly in an embodiment of the present utility model;

[0041] Figure 13 Internal structure diagram of the noise reduction assembly in an embodiment of the present utility model. Detailed implementation manners

[0042] As can be seen from the background art, the structure of the existing floor washer still needs to be improved.

[0043] Currently, few push-type floor washers have a silent structure. Even if there is one, it is simply to add sound-absorbing cotton around the vacuum motor to reduce the noise level.

[0044] The inventor found that by adding sound-absorbing cotton, on the one hand, the sound-absorbing effect is poor, and on the other hand, adding sound-absorbing cotton will increase the assembly difficulty of the floor washer and limit the use of the floor washer to a certain extent.

[0045] The inventor's research found that a recessed receiving cavity is provided on the surface of the water tank assembly facing the power assembly. At least one connecting piece is connected to the opening of the receiving cavity, and the through hole on the connecting piece is communicated with the first air inlet. Due to the existence of the receiving cavity, the path for the gas to enter the power assembly from the first air inlet is extended, and the receiving cavity has the effect of air intake expansion, which plays a role in reducing noise and expanding the use range of the floor washer.

[0046] To make the above objects, features, and advantages of the present utility model more obvious and understandable, the following detailed description will be given of specific embodiments of the present utility model with reference to the accompanying drawings.

[0047] First, please refer to Figures 1 to 3 and Figure 6 , a floor washer, including a clean water tank assembly 3, a power assembly 2, and a sewage tank assembly 1.

[0048] In this embodiment, the clean water tank assembly 3 has a recessed installation cavity; the power assembly 2 is installed in the installation cavity. The power assembly 2 includes a first air inlet 2a and a first air outlet 2b, and the first air outlet 2b communicates with the installation cavity; the sewage tank assembly 1 is cooperatively installed with the clean water tank assembly 3 such that the power assembly 2 is located between the clean water tank assembly and the sewage tank assembly 1. The surface of the sewage tank assembly 1 facing the power assembly 2 has a recessed receiving cavity 7; the opening of the receiving cavity 7 is connected to at least one connector 6, and the through hole 6a on the connector 6 communicates with the first air inlet 2a.

[0049] In this embodiment, after the external air flow enters the sewage tank assembly 1, it sequentially passes through the receiving cavity 7, the first air inlet 2a, the first air outlet 2b, and then is discharged from the outlet of the clean water tank assembly 3. Due to the existence of the receiving cavity 7, the path of the air flow entering the first air inlet 2a is extended. At the same time, the existence of the receiving cavity 7 has an air intake diffusion effect, which plays a role in reducing noise and expanding the use range of the floor washer.

[0050] In this embodiment, the connector 6 is a flange flat plate.

[0051] In this embodiment, the number of the connectors 6 is multiple. Specifically, the number of the connectors 6 is two.

[0052] In other embodiments, the number of the connectors 6 can also be one, three, four, etc., as long as there is enough space.

[0053] In this embodiment, the connecting member 6 includes a first connecting member 6 connected to the opening of the accommodating cavity 7, and a second connecting member 6 connected to the first connecting member 6. The projection pattern of the through hole 6a of the first connecting member 6 on the bottom of the accommodating cavity 7 does not coincide with the projection pattern of the through hole 6a of the second connecting member 6 on the bottom of the accommodating cavity 7. The purpose of this design is that air flow will flow through the through holes of the first connecting member 6 and the second connecting member 6. By using the fact that the projection pattern of the through hole of the first connecting member 6 on the bottom of the accommodating cavity 7 does not coincide with the projection pattern of the through hole of the second connecting member 6 on the bottom of the accommodating cavity 7, that is, the through holes of the first connecting member 6 and the second connecting member 6 do not coincide, it helps to increase the flow path of the air flow, the flow time of the air flow becomes longer, thereby reducing the leakage of noise and playing a role in reducing noise.

[0054] In this embodiment, it further includes: a first rubber port 29 connected to and communicating with the first air inlet 2a, and the first rubber port 29 is in interference fit with the connecting member 6; a second rubber port 21 connected to and communicating with the first air outlet 2b, and the second rubber port 21 is in interference fit with the water tank assembly 3.

[0055] In this embodiment, the reason for arranging the first rubber port 29 on the first air inlet 2a and the second rubber port 21 on the first air outlet is as follows: after the sewage tank assembly 1 and the water tank assembly 3 are assembled, the power assembly 2 is between the sewage tank assembly 1 and the water tank assembly 3, and there is no connection relationship between the power assembly 2 and the sewage tank assembly 1 and the water tank assembly 3. However, to ensure the sealed connection between the power assembly 2 and the sewage tank assembly 1 and the water tank assembly 3, so 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. By using the elasticity and sealing property of the rubber, the first rubber port 29 is in interference fit with the connecting plate (that is, the first rubber port 29 abuts against the connecting plate), and the second rubber port 21 is in interference fit with the water tank assembly 3 (that is, the second rubber port 21 abuts against the water tank assembly 3), to achieve the sealed connection between the power assembly 2 and the sewage tank assembly 1 and the water tank assembly 3.

[0056] In this embodiment, please refer to Figure 1 and Figure 3 , the sewage tank assembly 1 includes a sewage tank body 5, and the sewage tank body 5 has a channel 5a penetrating through the sewage tank body 5, and the channel 5a is communicated with the bottom of the accommodating cavity 7.

[0057] In this embodiment, please refer to Figure 2, the dimension d1 of the channel 5a in the direction perpendicular to the air flow direction is smaller than the dimension d2 of the accommodation cavity 7 in the direction perpendicular to the air flow direction. By utilizing the effect of the intake expansion of the accommodation cavity 7, the function of reducing noise is achieved.

[0058] In this embodiment, please refer to Figure 3 , further comprising a liquid level system 4 located on the surface of the sewage tank body 5, and the liquid level system 4 and the accommodation cavity 7 are respectively located on opposite surfaces of the sewage tank body 5.

[0059] In this embodiment, please refer to in combination Figures 9 to 11 , the clean water tank assembly 3 includes a clean water tank body 19, and the surface of the clean water tank body 19 has the inwardly recessed mounting groove 19a. The bottom of the mounting groove 19a has an inwardly recessed cavity 22, and the opening of the cavity 22 communicates with the bottom of the mounting groove 19a.

[0060] In this embodiment, further comprising: a third connecting member 20 covering the opening surface of the cavity 22, and the through hole 6a of the third connecting member 20 communicates with the first air outlet 2b.

[0061] In this embodiment, the third connecting member 20 adopts a cover flange.

[0062] In this embodiment, further comprising: a plurality of cross bars 22a located in the cavity 22.

[0063] In this embodiment, the bottom of the cavity 22 further has an air outlet 3a communicating with the outside.

[0064] Specifically, a cavity 22 with a plurality of cross bars 22a is rotomolded on the clean water tank body 19. The third connecting member 20 seals and fixes the cavity 22, and at the same time, a layer of sound-absorbing material with a certain thickness is attached to the third connecting member 20. A water tank sound insulation assembly is formed by the cavity 22, the third connecting member 20 and the sound-absorbing material. The first air outlet of the working air duct of the power assembly 2 is connected to this assembly by the second rubber port 21. The wind pressure noise is further reduced by this water tank sound insulation assembly.

[0065] In this embodiment, the air flow passes through the channel 5a, the accommodation cavity 7, enters the first air inlet and the first air outlet, and then flows into the atmosphere from the air outlet 3a. The air flow passage is the working air duct of the power assembly 2.

[0066] In other embodiments, please refer to Figure 12 and Figure 13 , further comprising: a noise reduction assembly 25 located in the cavity 22, and the noise reduction assembly 25 is detachably connected to the cavity 22.

[0067] In this embodiment, the noise reduction component 25 includes a housing 26. Airflow holes 26a are formed on opposite surfaces of the housing 26. One of the airflow holes 26a communicates with the external atmosphere, and the other airflow hole 26a communicates with the first air outlet 2b.

[0068] Figure 13 The arrows in it indicate the flow direction of the airflow.

[0069] Specifically, the housing 26 encloses a sealed cavity. A number of parallel baffles 27 are provided in the sealed cavity. Sound-absorbing materials 28 are adhered to the inner wall of the housing 26 and the surfaces of the baffles 27.

[0070] Among them, the noise reduction component 25 is not restricted by the water tank molding, and its shape can be more flexible and it is also convenient for disassembly, cleaning, and the housing 26 and the baffles 27 can be connected by welding or screw fastening. The sound-absorbing materials 28 can be pasted or fixed to the housing and the cross baffles through card slots. The airflow blows in from one end and blows out from the other end, which can weaken the high-frequency band in the noise.

[0071] In other embodiments, the noise reduction component may also be provided in the sewage box body 5. Specifically, the sewage box body 5 further has an accessory groove extending from the bottom of the accommodation cavity 7 into the interior of the sewage box body 5. The accessory groove communicates the channel 5a with the bottom of the accommodation cavity 7; the noise reduction component is located in the accessory groove and is detachably connected to the accessory groove. Airflow holes are formed on opposite surfaces of the housing of the noise reduction component. One of the airflow holes communicates with the bottom of the accommodation cavity 7, and the other airflow hole communicates with the channel 5a.

[0072] In this embodiment, please refer to Figure 1 、 Figures 4 to 8 , the power component 2 includes: an upper housing 8 and a lower housing 9 which are connected to each other. The surface of the lower housing 9 has a first heat dissipation hole ③ penetrating through the lower housing 9.

[0073] In this embodiment, please refer to Figure 4 and Figure 5 , the upper housing 8 adopts the design of a centrifugal fan housing, so that the gas generated by the upper impeller is accelerated first and then decelerated after being reversed, improving the air pressure of the vacuum motor. In the case of motors with the same power, this vacuum motor assembly can achieve greater suction. Therefore, when maintaining the same suction, this component has higher efficiency and the motor power used is smaller. Thus, while improving the endurance of the floor washer, the noise generated by the high-speed rotation of the vacuum motor is also reduced.

[0074] Specifically, please refer to Figure 6 , a foaming sealing strip 17 is used between the upper housing 8 and the lower housing 9 to seal the working air duct to prevent the leakage of the working air pressure.

[0075] In this embodiment, please continue to refer toFigure 6 Further, it further includes a lower outer shell 10 sleeved on the outer wall of the lower shell 9. The lower outer shell 10 is provided with a second heat dissipation hole ⑤ penetrating through the lower outer shell 10. The first heat dissipation hole ③ and the second heat dissipation hole ⑤ are respectively located on both sides of the lower shell 9, and the center line of the first heat dissipation hole ③ is parallel to the center line of the second heat dissipation hole ⑤.

[0076] In this embodiment, a lower outer shell 10 is further installed outside the lower shell 9. A rubber gasket 16 is used to seal between the lower outer shell 10 and the lower shell 9 to prevent the mixing of the inlet and outlet of the heat dissipation air duct of the vacuum motor, and avoid overheating and burning of the motor due to excessive temperature rise.

[0077] In this embodiment, a cavity is formed between the inner wall of the upper shell 8 and the inner wall of the lower shell 9. A motor 14 is disposed in the cavity, and there are a plurality of fixing members between the motor 14 and the wall of the cavity.

[0078] Specifically, please continue to refer to Figure 6 , the motor 14 is supported and fixed in the upper and lower shells by the upper cover 13, the support ring 12 and the lower support pad 15, which greatly reduces the vibration and imbalance generated by the high-speed rotation of the motor. The materials of the upper cover 13, the support ring 12 and the lower support pad 15 are all EPDM with relatively soft hardness.

[0079] In this embodiment, the motor 14 is a wet and dry dual-purpose motor, and the motor 14 is provided with a heat dissipation fan 11.

[0080] Please continue to refer to Figure 6 , the rotation of the heat dissipation fan 11 causes air to be sucked in from the bottom of the motor, and the air takes out the heat from the surroundings after passing through the inside of the motor. Specifically, the cooling air is sucked in from the second air inlet of the lower outer shell 10, and the air flow passes through the numbers ①, ②, comes out from the first heat dissipation hole ③, passes through the number ④, and is discharged from the second heat dissipation hole ⑤. Here, the air flow passage is the heat dissipation passage of the power assembly 2. Since the lower outer shell 10 extends the heat dissipation air duct, the noise generated by the self-rotation of the motor 14 is reduced.

[0081] In this embodiment, please refer to Figure 9 , a baffle 18 is installed at the outlet of the heat dissipation air duct. The baffle 18 can prevent the heat dissipation air from spraying directly outwards and affecting the use by customers.

[0082] In this embodiment, please refer to Figure 7 , it further includes an upper outer shell 23 sleeved on the outer wall of the upper shell 8. The upper outer shell 23 is hermetically connected to the lower outer shell 10.

[0083] Specifically, the upper housing 23 and the lower housing 10 are hermetically connected by a foaming sealing strip 17. Through this set of housings, the power assembly forms a double-layer structure, and the double-layer structure has good sound insulation effect. At the same time, sound-absorbing materials 24 are added or the cavity between the upper and lower housings and between the upper and lower shells is evacuated to further improve the noise reduction effect.

[0084] Although the present utility model is disclosed as above, the present utility model is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the scope defined by the claims.

Claims

1. A floor washer, characterized in that, Comprising: A clean water tank assembly having a recessed mounting cavity; A power assembly mounted in the mounting cavity, the power assembly including a first air inlet and a first air outlet, and the first air outlet communicating with the mounting cavity; A sewage tank assembly matching the clean water tank assembly, the power assembly being located between the clean water tank assembly and the sewage tank assembly, and the surface of the sewage tank assembly facing the power assembly having a recessed receiving cavity; At least one connecting member connected to the opening of the receiving cavity, and a through hole in the connecting member communicating with the first air inlet.

2. The floor washer according to claim 1, characterized in that, The connecting member is a flange flat plate.

3. The floor washer according to claim 1, wherein When the number of the connecting members is multiple, the connecting members at least include a first connecting member connected to the opening of the receiving cavity and a second connecting member connected to the first connecting member, and the projection pattern of the through hole of the first connecting member at the bottom of the receiving cavity does not coincide with the projection pattern of the through hole of the second connecting member at the bottom of the receiving cavity.

4. The floor washer according to claim 1, characterized in that, Further comprising: A first rubber port connected to and communicating with the first air inlet, the first rubber port being in interference fit with the connecting member; a second rubber port connected to and communicating with the first air outlet, the second rubber port being in interference fit with the clean water tank assembly.

5. The floor washer according to claim 1, characterized in that, The sewage tank assembly includes a sewage tank body, and a channel penetrating the sewage tank body is provided in the sewage tank body, and the channel communicates with the bottom of the receiving cavity.

6. The floor washer according to claim 5, wherein The size of the channel in the direction perpendicular to the air flow direction is smaller than the size of the receiving cavity in the direction perpendicular to the air flow direction.

7. The floor washer according to claim 5, characterized in that, The sewage tank body further has an accessory groove extending from the bottom of the receiving cavity into the interior of the sewage tank body, and the accessory groove communicates the channel with the bottom of the receiving cavity.

8. The floor washer according to claim 7, wherein, Further comprising a noise reduction assembly located in the accessory groove, and the noise reduction assembly is detachably connected to the accessory groove.

9. The floor washer according to claim 8, characterized in that, The noise reduction assembly includes a housing, and air flow holes are provided on opposite surfaces of the housing, one air flow hole communicating with the bottom of the receiving cavity and the other air flow hole communicating with the channel.

10. The floor washer according to claim 6, characterized in that, Further comprising a liquid level system located on the surface of the sewage tank body, and the liquid level system and the receiving cavity are respectively located on opposite surfaces of the sewage tank body.

11. The floor washer according to claim 1, characterized in that, The clean water tank assembly includes a clean water tank body, and an installation groove recessed inward is provided on the surface of the clean water tank body, and a cavity recessed inward is provided at the bottom of the installation groove, and the opening of the cavity communicates with the bottom of the installation groove.

12. The floor washer according to claim 11, wherein, Further comprising: A third connecting member covering the opening surface of the cavity, and a through hole in the third connecting member communicating with the first air outlet.

13. The floor washer according to claim 11, wherein, Further comprising: A plurality of cross bars located in the cavity.

14. The floor washer according to claim 11, characterized in that, Further comprising: A noise reduction assembly located in the cavity, and the noise reduction assembly is detachably connected to the cavity.

15. The floor washer according to claim 14, characterized in that, The noise reduction assembly includes a housing, and air flow holes are provided on opposite surfaces of the housing, one air flow hole communicating with the external atmosphere and the other air flow hole communicating with the first air outlet.

16. The floor washer according to claim 9 or 15, characterized in that, The housing encloses a sealed cavity, and a plurality of parallel bars are provided in the sealed cavity, and sound-absorbing materials are adhered to the inner wall of the housing and the surface of the bars.

17. The floor washer according to claim 1, characterized in that, The power component includes: an upper shell and a lower shell that are connected to each other, and the surface of the lower shell has a first heat dissipation hole penetrating through the lower shell.

18. The floor washer according to claim 17, characterized in that, It further includes: A lower outer shell sleeved on the outer wall of the lower shell, and the lower outer shell has a second heat dissipation hole penetrating through the lower outer shell. The first heat dissipation hole and the second heat dissipation hole are respectively located on both sides of the lower shell, and the center line of the first heat dissipation hole is parallel to the center line of the second heat dissipation hole.

19. The floor washer according to claim 17, characterized in that, A cavity is formed between the inner wall of the upper shell and the inner wall of the lower shell, and a motor is provided in the cavity. There are a plurality of fixing members between the motor and the wall of the cavity.

20. The floor washer according to claim 18, characterized in that, The lower outer shell further has a second air inlet penetrating through the lower outer shell.

21. The floor washer according to claim 18, characterized in that, It further includes: An upper outer shell sleeved on the outer wall of the upper shell, and the upper outer shell is sealingly connected to the lower outer shell.

Images