Sewage tank and scrubber using same

Abstract

The utility model relates to a sewage tank and a scrubber using the sewage tank, the sewage tank comprises a tank body with an accommodating cavity inside, an outlet arranged at the top of the tank body and a tank cover capable of covering the outlet, and an inlet arranged at the bottom of the tank body, and the sewage tank is characterized in that a guide pipe communicated with the inlet is arranged in the accommodating cavity inside the tank body; the guide pipes comprise the first guide pipe and the second guide pipe, the first guide pipe is a straight pipe and is vertically arranged, the second guide pipe is an L-shaped bent pipe, the first end of the first guide pipe is communicated with the inlet in the bottom of the box body, the second end of the first guide pipe is connected with the first end of the second guide pipe, and the second end of the second guide pipe is arranged towards the side wall of the containing cavity of the box body. An inverted-U-shaped flow guide panel arranged above the second guide pipe is further arranged in the containing cavity of the box body, and a notch allowing the gas mixture to flow upwards is formed between the inverted-U-shaped flow guide panel and the inner wall of the containing cavity in the box body. Compared with the prior art, the dust and dirt separating device can effectively separate and block airflow mixtures such as dust and dirt entering the sewage tank.

Description

Technical Field

[0001] The utility model relates to a sewage tank and a floor washer using the sewage tank. Background Art

[0002] A Chinese patent with the publication number of CN 218074867 U discloses a sewage tank assembly. An inlet and an outlet are provided on the box body assembly. A liquid storage cavity is provided inside the box body assembly. The inlet and the outlet are communicated with the liquid storage cavity. The inlet is arranged at the bottom of the box body, and an opening is arranged at the top of the box body. A filter screen is arranged at the top opening. A blower communicated with the outlet is arranged on the top of the sewage tank. During actual use, the sewage carrying dust enters the liquid storage cavity of the box body assembly through the inlet, and the sewage is stored in the liquid storage cavity under the action of gravity. However, in this sewage tank structure, water vapor is likely to enter the blower through the filter screen along with the air flow, thus damaging the blower. Therefore, the existing sewage tank needs to be further improved. Summary of the Utility Model

[0003] The first technical problem to be solved by the utility model is to provide a sewage tank that can guide and separate the air flow mixture entering the sewage tank to avoid water vapor in view of the above-mentioned prior art.

[0004] The second technical problem to be solved by the utility model is to provide a floor washer using the above sewage tank.

[0005] The technical solution adopted by the utility model to solve the above first technical problem is as follows: A sewage tank includes a box body with an internal cavity. An outlet communicated with the internal cavity is provided at the top of the box body. A box cover is provided at the outlet at the top of the box body. An inlet is provided at the bottom of the box body. The feature is that: A conduit communicated with the inlet is provided in the internal cavity of the box body. The conduit includes a first conduit and a second conduit. The first conduit is a straight pipe and is vertically arranged. The second conduit is an L-shaped bent pipe. The first end of the first conduit is communicated with the inlet at the bottom of the box body. The second end of the first conduit is connected to the first end of the second conduit. The second end of the second conduit is arranged towards the side wall of the cavity of the box body. An inverted U-shaped diversion panel is further provided in the cavity of the box body above the second conduit. A gap allowing the gas mixture to flow upward is provided between the inverted U-shaped diversion panel and the inner wall of the internal cavity of the box body.

[0006] As an improvement, a coaxial positive and negative centrifugal wind wheel assembly is further provided in the cavity of the box body above the inverted U-shaped diversion panel. The coaxial positive and negative centrifugal wind wheel assembly includes a drive motor, a rotating shaft, a first bevel gear, a second bevel gear, a third bevel gear, a first centrifugal wind wheel and a second centrifugal wind wheel. The first bevel gear is fixed on the output shaft of the drive motor. The second bevel gear and the third bevel gear are sleeved on the rotating shaft at intervals, and both the second bevel gear and the third bevel gear are meshed with the first bevel gear. When the output shaft of the drive motor rotates to drive the first bevel gear to rotate, the first bevel gear synchronously drives the second bevel gear and the third bevel gear to rotate in opposite directions. The second bevel gear is fixedly sleeved on the rotating shaft, and the second centrifugal wind wheel is also fixedly sleeved on the rotating shaft. The second centrifugal wind wheel and the rotating shaft rotate together in the rotation direction of the second bevel gear driven by the second bevel gear. The third bevel gear is movably sleeved on the rotating shaft, and the third bevel gear is fixedly connected to the first centrifugal wind wheel. The first centrifugal wind wheel rotates together in the rotation direction of the third bevel gear.

[0007] As a further improvement, an upper cover is hermetically connected to the outlet at the top of the box body. The box cover is arranged on the upper cover. A connecting cover plate is arranged on the upper cover. The top of the rotating shaft is fixed on the cover plate through a bearing.

[0008] As a further improvement, the connecting cover plate is provided with a through hole, and a filter plate is arranged at the through hole.

[0009] As a further improvement, a wind guiding curtain extending upward is arranged on the box cover. The wind guiding curtain surrounds the through hole on the cover plate, and an air outlet is formed at the top of the wind guiding curtain.

[0010] As a further improvement, a HEPA filter element is arranged at the air outlet at the top of the wind guiding curtain.

[0011] As a further improvement, the inverted U-shaped diversion panel is fixedly connected to the box cover through two connecting rods.

[0012] As a further improvement, the second conduit is fixedly connected to the inner wall of the inverted U-shaped diversion panel through a connecting rod.

[0013] The technical solution adopted by the present utility model to solve the above-mentioned second technical problem is: a floor washer, including a floor washing assembly with a rolling brush and a handle connected to the floor washing assembly, characterized in that: the handle is provided with a sewage tank having the above structure.

[0014] Compared with the prior art, the advantages of the present utility model are as follows: the arrangement of the conduit enables the airflow mixture such as dust and stains entering the sewage tank to be adjusted by 90 degrees and directly rush towards the side wall of the inner container of the sewage bucket. The arrangement of the inverted U-shaped diversion panel can effectively block the airflow mixture such as dust and stains entering the sewage tank, avoiding the water vapor mixture directly impacting upward to the top outlet of the sewage tank, thereby affecting the external fan of the sewage tank. Brief Description of the Drawings

[0015] Figure 1 This is a three-dimensional structural schematic diagram of the sewage tank in the embodiment of the present utility model.

[0016] Figure 2 This is an exploded three-dimensional view of the sewage tank in the embodiment of the present utility model.

[0017] Figure 3 This is a cross-sectional view of the sewage tank in the embodiment of the present utility model.

[0018] Figure 4 This is a structural schematic diagram of the coaxial positive and negative centrifugal air wheel assembly in the embodiment of the present utility model.

[0019] Figure 5 This is a three-dimensional structural schematic diagram of the floor washer in the embodiment of the present utility model. Detailed Description of the Embodiment

[0020] The present utility model will be further described in detail below in conjunction with the embodiments of the drawings.

[0021] As Figures 1 to 3 shown in the sewage tank, it includes a box body 1 with an internal cavity, an outlet 12 communicating with the internal cavity is provided at the top of the box body 1, an upper cover 2 is hermetically provided at the outlet of the top of the box body, a box cover 3 is connected to the upper cover, an inlet 11 is provided at the bottom of the box body 1, a conduit communicating with the inlet 11 is provided in the internal cavity of the box body 1, the conduit includes a first conduit 5 and a second conduit 6, wherein the first conduit 5 is a straight pipe and is vertically arranged, the second conduit 6 is an L-shaped bent pipe, the first end of the first conduit 6 communicates with the inlet 11 at the bottom of the box body, the second end of the first conduit 5 is connected to the first end of the second conduit 6, the second end of the second conduit 6 is arranged towards the side wall of the box body cavity, an inverted U-shaped diversion panel 7 is further provided in the cavity of the box body 1 above the second conduit, and a gap allowing the gas mixture to flow upward is provided between the inverted U-shaped diversion panel 7 and the inner wall of the box body internal cavity.

[0022] In this embodiment, a coaxial positive and negative centrifugal impeller assembly 8 is further disposed in the cavity of the box body 1 above the inverted U-shaped flow guiding panel 7. The coaxial positive and negative centrifugal impeller assembly 8 includes a driving motor 81, a rotating shaft 82, a first bevel gear 83, a second bevel gear 84, a third bevel gear 85, a first centrifugal impeller 86 and a second centrifugal impeller 87. The first bevel gear 83 is fixed on the output shaft of the driving motor 81. The second bevel gear 84 and the third bevel gear 85 are sleeved on the rotating shaft 82 at intervals. The second bevel gear 84 is located above the third bevel gear 85. Both the second bevel gear 84 and the third bevel gear 85 are engaged with the first bevel gear 83. The first centrifugal impeller 86 and the second centrifugal impeller 87 are sleeved outside the rotating shaft 81. When the output shaft of the driving motor 81 rotates to drive the first bevel gear 83 to rotate, the first bevel gear 83 synchronously drives the second bevel gear 84 and the third bevel gear 85 to rotate in opposite directions. The second bevel gear 84 is fixedly sleeved on the rotating shaft 82, and the second centrifugal impeller 87 is also fixedly sleeved on the rotating shaft 82. The second centrifugal impeller 87 and the rotating shaft 82 rotate together in the rotation direction of the second bevel gear 84 driven by the second bevel gear 84. The third bevel gear 85 is movably sleeved on the rotating shaft 82. The third bevel gear 85 is fixedly connected to the first centrifugal impeller 86. The first centrifugal impeller 86 rotates together in the rotation direction of the third bevel gear 85. Therefore, after the driving motor 81 works, the first bevel gear 83 synchronously drives the second bevel gear 84 and the third bevel gear 85 to rotate in opposite directions, and further the rotation directions of the first centrifugal impeller 86 and the second centrifugal impeller 87 are also opposite.

[0023] A connecting cover plate 21 is provided on the upper cover 2. The top of the rotating shaft 81 is fixed on the connecting cover plate 21 through a bearing 88. A through hole is provided on the connecting cover plate 21, and a filter plate 9 is provided at the through hole. A wind guiding curtain 22 extending upward is provided on the connecting cover plate 21 of the upper cover. The wind guiding curtain 22 surrounds the through hole on the cover plate. An air outlet is formed at the top of the wind guiding curtain, and a HEPA filter element 4 is provided at the air outlet. The inverted U-shaped flow guiding panel 7 is fixedly connected to the upper cover through two connecting rods 10. The second conduit 6 is fixedly connected to the inner wall of the inverted U-shaped flow guiding panel 7 through a connecting rod.

[0024] The arrangement of the conduit enables the air flow mixture such as dust and stains entering the sewage tank to be adjusted by 90 degrees and directly rush towards the side wall of the inner container of the sewage bucket. The arrangement of the inverted U-shaped flow guiding panel 7 can guide and separate the air flow mixture such as dust and stains entering the sewage tank downward, avoiding the water vapor mixture directly impacting upward to the top outlet of the sewage tank, thereby affecting the external fan of the sewage tank. The coaxial positive and negative centrifugal impeller assembly 8 operates at high speed to generate a bidirectional centrifugal force, enhancing the separation and filtration of the multi-gas mixture.

[0025] The working principle process of the above sewage tank is as follows: When the driving motor 8 rotates, the two centrifugal fans rotate in opposite directions, simultaneously generating different centrifugal forces to form an efficient separation effect, achieving a filtering effect and discharging the cleaned mixture; the dust and stains enter through the air inlet, and the air flow direction is adjusted by 90 degrees by the conduit 5 and directly impacts the inner wall of the sewage tank. Due to the action of the inverted U-shaped diversion panel 7, the air flow mixture (including dust, stains, and water droplets) can only flow downward and to both sides. There are gaps between both sides of the inverted U-shaped diversion panel 7 and the inner wall of the sewage tank cavity, and the gas mixture flows upward through the gaps. At this time, the coaxial positive and negative centrifugal fan assembly continuously operates to generate positive and negative centrifugal forces, separating the upward flowing gas mixture, throwing the dust, water droplets, etc. in the mixture onto the inner wall of the sewage tank cavity and then flowing down along the smooth barrel wall. The remaining clean air is discharged through the filter partition 9 and then discharged into the air through the Hepa filter element 1.

[0026] In addition, the present utility model also provides a floor washer, as shown in Figure 5 which includes a floor washing assembly 101 having a rotary brush, a handle 102 connected to the floor washing assembly, and a sewage tank having the above structure is provided on the handle 102.

Claims

1. A sewage tank, comprising a box body with a cavity inside, an outlet communicating with the internal cavity is provided on the top of the box body, a box cover is provided at the outlet on the top of the box body, and an inlet is provided at the bottom of the box body, characterized in that: A conduit connected to the inlet is provided in the internal volume of the box, and the conduit includes a first conduit and a second conduit, wherein the first conduit is a straight tube and is vertically arranged, and the second conduit is an L-shaped bent tube, the first end of the first conduit is connected to the inlet at the bottom of the box, the second end of the first conduit is connected to the first end of the second conduit, and the second end of the second conduit is arranged toward the side wall of the box volume. The volume of the box is also provided with an inverted U-shaped guide panel arranged above the second conduit, and a notch is provided between the inverted U-shaped guide panel and the inner wall of the internal volume of the box to allow the gas mixture to flow upward.

2. The sewage tank according to claim 1, characterized in that: The chamber of the box body is also provided with a coaxial positive and negative centrifugal wind wheel assembly arranged above the inverted U-shaped guide panel, and the coaxial positive and negative centrifugal wind wheel assembly comprises a transmission motor, a rotating shaft, a first bevel gear, a second bevel gear, a third bevel gear, a first centrifugal wind wheel and a second centrifugal wind wheel, wherein the first bevel gear is fixed on the output shaft of the transmission motor, the second bevel gear and the third bevel gear are sleeved on the rotating shaft at intervals, and the second bevel gear and the third bevel gear are both meshed with the first bevel gear; when the output shaft of the transmission motor rotates to drive the first bevel gear to rotate, the first bevel gear synchronously drives the second bevel gear and the third bevel gear to rotate in opposite directions; the second bevel gear is fixedly sleeved on the rotating shaft, and the second centrifugal wind wheel is also fixedly sleeved on the rotating shaft, and the second centrifugal wind wheel and the rotating shaft rotate together with the rotation direction of the second bevel gear under the drive of the second bevel gear; the third bevel gear is movably sleeved on the rotating shaft, the third bevel gear is fixedly connected to the first centrifugal wind wheel, and the first centrifugal wind wheel rotates together with the rotation direction of the third bevel gear.

3. The sewage tank according to claim 2, characterized in that: An upper cover is sealed at the outlet of the top of the box body, the box cover is arranged on the upper cover, a connecting cover plate is arranged on the upper cover, and the top of the rotating shaft is fixed on the cover plate through a bearing.

4. The sewage tank according to claim 3, characterized in that: The connecting cover plate is provided with a through hole, and a filter plate is provided at the through hole.

5. The sewage tank according to claim 4, characterized in that: The box cover is provided with an upwardly extending air guide curtain, which surrounds the through hole on the cover plate, and an air outlet is formed on the top of the air guide curtain.

6. The sewage tank according to claim 5, characterized in that: A HEPA filter is provided at the air outlet on the top of the air guide curtain.

7. The sewage tank according to claim 1, characterized in that: The inverted U-shaped guide panel is fixedly connected to the box cover via two connecting rods.

8. The sewage tank according to claim 1, characterized in that: The second conduit is connected and fixed to the inner wall of the inverted U-shaped guide panel via a connecting rod.

9. A floor scrubber, comprising a floor scrubber assembly having a roller brush, and a handle connected to the floor scrubber assembly, characterized in that: The handle is provided with a sewage tank as claimed in any one of claims 1 to 8.

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