Sanitation vehicle and sewage tank assembly thereof

Abstract

The application provides a sanitation vehicle and a sewage tank assembly thereof, wherein the sewage tank assembly comprises a tank body, a sewage outlet and a sewage inlet arranged at the bottom of the tank body, a drain pipe connected to the sewage outlet, a stirring mechanism arranged on the tank body and located at the sewage outlet, the stirring mechanism comprising stirring blades arranged in the tank body and adapted to stir the sewage in the tank body, a suction pipe connected to the sewage inlet and partially arranged in the tank body, and the drain pipe being in communication with the suction pipe. The stirring blades of the stirring mechanism can stir the sewage near the sewage outlet, thereby preventing the silt in the sewage from depositing, and enabling the sewage and the silt to be discharged through the drain pipe. After the sewage is discharged from the drain pipe, it enters the suction pipe and is mixed with the dust in the garbage sucked by the suction pipe to reduce dust, and then enters the tank body again, thereby achieving the effect of sewage circulation. The above structure can prevent the silt in the sewage from depositing and blocking the sewage outlet.

Description

Technical Field

[0001] This invention relates to the field of sanitation equipment technology, specifically to a sanitation vehicle and its sewage tank assembly. Background Technology

[0002] Sanitation vehicles are commonly used road cleaning equipment. For example... Figure 3 As shown, to reduce dust generated during the cleaning process, a certain amount of circulating water needs to be added to the garbage bin before the sanitation vehicle starts operating. During operation, the wastewater is filtered through the side filters 2' on both sides of the bin 1' and stored in the wastewater sedimentation tank 3' at the bottom of the bin 1'. The wastewater in the bin 1' flows back to the front suction pipe through the filter connector and wastewater pipe 4' from the wastewater sedimentation tank 3' by gravity. During sanitation operations, the wastewater mixes with dust in the suction pipe, settles, and then re-enters the wastewater tank, forming a wastewater circulation system.

[0003] In the above structure, the sewage sedimentation tank is a closed chamber where sewage is stored after being filtered through a filter screen. During sanitation vehicle operations, the garbage bin remains horizontal, causing sediment to settle at the bottom of the sedimentation tank, forming sludge. After a period of time, the accumulated sludge clogs the sewage filter joints and pipes, leading to the failure of the sewage circulation function. Summary of the Invention

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the defect that the sewage circulation function of sanitation vehicles in the prior art is prone to failure, thereby providing a sanitation vehicle and its sewage tank assembly.

[0005] To address the aforementioned problems, the present invention provides a sewage tank assembly, comprising: a tank body, the bottom of which is provided with a sewage outlet and a sewage inlet; a drain pipe connected to the sewage outlet; an agitation mechanism disposed on the tank body and located at the sewage outlet, the agitation mechanism including agitating blades located within the tank body, the agitating blades being adapted to agitate the sewage within the tank body; and a suction pipe connected to the sewage inlet, with a portion of the suction pipe located within the tank body, the drain pipe communicating with the suction pipe.

[0006] Optionally, the agitation mechanism also includes a driving component, which is disposed on the outer wall of the housing, and the driving end of the driving component passes through the side wall of the housing and is connected to the agitation blade.

[0007] Optionally, the driving component includes a motor, and the agitation mechanism also includes a rotating shaft. The side wall of the housing is provided with a mounting hole, and the rotating shaft passes through the mounting hole and is connected to the agitation blade. The motor drives the rotating shaft to rotate.

[0008] Optionally, a sealing structure is provided between the rotating shaft and the mounting hole.

[0009] Optionally, the wastewater tank assembly also includes a filter cover, which is disposed on the inner side wall of the tank and covers the outside of the drain outlet.

[0010] Optionally, the filter cover is installed over the agitator blades.

[0011] Optionally, the outer edge of the agitator blades is adapted to the inner wall of the filter shroud.

[0012] Optionally, a sedimentation tank is provided at the bottom of the tank.

[0013] Optionally, the upper part of the suction pipe extends to the top of the box.

[0014] The present invention also provides a sanitation vehicle, including the above-described sewage tank assembly.

[0015] The present invention has the following advantages:

[0016] Using the technical solution of this invention, the agitating blades of the stirring mechanism can agitate the sewage near the discharge outlet, thereby preventing the sediment in the sewage from settling and allowing both sewage and sludge to be discharged through the drain pipe. After being discharged from the drain pipe, the sewage enters the suction pipe, where it mixes with dust from the garbage sucked in by the suction pipe, and then re-enters the tank, thus achieving the effect of sewage circulation. The above structure can prevent the sediment in the sewage from settling and clogging the discharge outlet, thus solving the defect of easy failure of the sewage circulation function of existing sanitation vehicles. Attached Figure Description

[0017] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 A schematic diagram of the wastewater tank assembly of the present invention is shown;

[0019] Figure 2 It shows Figure 1 A schematic diagram of the agitation mechanism of the wastewater tank assembly; and

[0020] Figure 3 A schematic diagram of the structure of a sewage tank in a sanitation vehicle in the prior art is shown.

[0021] Explanation of reference numerals in the attached figures:

[0022] 10. Housing; 11. Drain outlet; 12. Inlet outlet; 13. Sedimentation tank; 20. Drain pipe; 30. Agitator; 31. Agitator blades; 32. Drive unit; 33. Rotary shaft; 40. Suction pipe; 50. Filter cover. Detailed Implementation

[0023] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0026] Furthermore, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0027] like Figure 1 and Figure 2 As shown, an embodiment of the wastewater tank assembly according to this application includes: a tank body 10, a drain pipe 20, an agitation mechanism 30, and a suction pipe 40. The tank body 10 has a drain outlet 11 and a drain inlet 12 at its bottom. The drain pipe 20 is connected to the drain outlet 11. The agitation mechanism 30 is disposed on the tank body 10 and located at the drain outlet 11. The agitation mechanism 30 includes agitation blades 31 located within the tank body 10, which are adapted to agitate the wastewater within the tank body 10. The suction pipe 40 is connected to the drain inlet 12, and a portion of the suction pipe 40 is located within the tank body 10. The drain pipe 20 communicates with the suction pipe 40.

[0028] Using the technical solution of this embodiment, the stirring blades 31 of the stirring mechanism 30 can stir the sewage near the sewage outlet 11, thereby preventing the sediment in the sewage from settling and allowing both sewage and sludge to be discharged through the drain pipe 20. After being discharged from the drain pipe 20, the sewage enters the suction pipe 40, where it mixes with dust from the garbage sucked in by the suction pipe 40 and then returns to the tank 10, thus achieving the effect of sewage circulation. The above structure can prevent the sediment in the sewage from settling and clogging the sewage outlet, thus solving the defect that the sewage circulation function of sanitation vehicles in the prior art is prone to failure.

[0029] It should be noted that the drain pipe 20 is connected to the suction pipe 40, so that the end of the drain pipe 20 can be directly connected to the side wall of the suction pipe 40 (not shown in the figure). Therefore, after the sewage flows out of the drain pipe 20, it can flow into the drain pipe 20.

[0030] Preferably, a switch structure (e.g., an electric ball valve) can be provided on the drain pipe 20 to control the opening and closing of the drain pipe 20. When cleaning is being performed, the switch structure can open the drain pipe 20, thereby initiating sewage circulation. When cleaning is not being performed, the switch structure can close the drain pipe 20, thereby shutting off sewage circulation.

[0031] Furthermore, the suction pipe 40 can generate a vacuum using a blower (not shown in the figure) to suck up garbage from the ground. After the garbage is sucked into the suction pipe 40, it mixes with the sewage in the drain pipe 20. The mixture of dust and sewage has a dust-suppressing effect. Then the sewage flows into the tank 10, sinks to the bottom of the tank 10 under the action of gravity, and flows back into the suction pipe 40 through the drain outlet 11 and the drain pipe 20, thus realizing the circulation of sewage.

[0032] In this embodiment, the stirring blade 31 can stir the sewage near the sewage outlet 11 by rotating or swinging, thereby preventing the sludge in the sewage from settling and clogging the sewage outlet 11.

[0033] like Figure 2 As shown, in the technical solution of this embodiment, the stirring mechanism 30 further includes a driving member 32. The driving member 32 is disposed on the outer side wall of the housing 10, and the driving end of the driving member 32 passes through the side wall of the housing 10 and is connected to the stirring blade 31.

[0034] Specifically, the drive unit 32 provides power for the movement of the agitator blades 31. At the same time, positioning the drive unit 32 on the outer wall of the housing 10 prevents sewage from soaking the drive unit 32.

[0035] Preferably, the driving component 32 includes a motor, and the side wall of the housing 10 is provided with a mounting hole. The agitation mechanism 30 also includes a rotating shaft 33. The rotating shaft 33 passes through the mounting hole, one end of the rotating shaft 33 is connected to the agitating blade 31, and the other end is driven to rotate by the motor. The motor drives the rotating shaft 33 to rotate, thereby driving the agitating blade 31 to rotate.

[0036] Furthermore, a flange can be provided on the side wall of the housing 10, and the flange hole forms a mounting hole through which the rotating shaft 33 passes.

[0037] Furthermore, a bearing housing can be installed on the flange, through which the rotating shaft 33 passes. A bearing is installed between the bearing housing and the rotating shaft 33 to facilitate the rotation of the rotating shaft 33. The aforementioned flange and bearing housing can be installed on the side wall of the housing 10 by means of welding, fastener connection, or other methods.

[0038] Preferably, a speed reducer can be provided between the motor and the rotating shaft 33 to regulate the rotational speed of the rotating shaft 33.

[0039] Preferably, a sealing structure is provided between the rotating shaft 33 and the mounting hole. Specifically, a sealing structure, namely an O-ring seal, is provided between the rotating shaft 33 and the bearing housing. Furthermore, there are multiple O-ring seals, which are spaced apart along the axial direction of the rotating shaft 33.

[0040] The sealing structure prevents sewage inside the tank 10 from leaking through the gap between the tank 10 and the rotating shaft 33.

[0041] like Figure 2 As shown, in this embodiment, the wastewater tank assembly further includes a filter cover 50, which is disposed on the inner side wall of the tank body 10 and covers the outside of the drain outlet 11. Specifically, the filter cover 50 can filter out large particulate impurities in the wastewater, thereby preventing large particulate impurities from entering the drain pipe 20 and causing blockage.

[0042] Preferably, the filter cover 50 has a cover-like structure with one end open, and it is fastened to the inner side wall of the housing 10, with the drain outlet 11 covered inside the filter cover 50. Therefore, large particulate impurities in the sewage cannot enter the drain outlet 11.

[0043] like Figure 2 As shown, in this embodiment, the filter cover 50 is installed over the agitator blades 31. The filter cover 50 can prevent large particulate impurities in the wastewater from damaging the agitator blades 31.

[0044] like Figure 2As shown, in the technical solution of this example, the outer edge of the agitator blade 31 is adapted to the inner wall of the filter cover 50. Specifically, there is a small gap between the outer edge of the agitator blade 31 and the filter cover 50, so that the size of the agitator blade 31 is as large as possible, resulting in a better agitation effect on the sewage.

[0045] Preferably, the filter cover 50 has a cylindrical structure.

[0046] like Figure 1 As shown, in this embodiment, a sedimentation tank 13 is provided at the bottom of the tank 10. A recessed area is provided at the bottom of the tank 10, forming the sedimentation tank 13. A drain outlet 11 is located within the plane of the sedimentation tank 13.

[0047] like Figure 1 As shown, in the technical solution of this embodiment, the upper part of the suction pipe 40 extends to the top of the box 10, thereby preventing sewage from flowing back from the upper end of the suction pipe 40.

[0048] This application also provides a sanitation vehicle, an embodiment of which includes the above-described sewage tank assembly.

[0049] Based on the above, this patent application has the following advantages:

[0050] 1. By adding an agitation mechanism, the circulating sewage in the system is always in a flowing state, which will not cause the sediment to settle and keep the entire circulation system in a smooth state; this improves the operating efficiency of sanitation vehicles and reduces dust pollution to the environment.

[0051] 2. The side filter structure in the existing technology is eliminated, and the box body and sewage sedimentation tank are connected, making the garbage bin structure design simpler;

[0052] 3. Through the design of the motor and electric ball valve, the motor speed and system on / off can be controlled according to the working conditions, improving the vehicle's adaptability.

[0053] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A sump assembly, characterized by, include: The box (10) has a drain outlet (11) and a drain inlet (12) at its bottom. A drain pipe (20) is connected to the drain outlet (11); An agitation mechanism (30) is provided on the tank (10) and located at the drain outlet (11). The agitation mechanism (30) includes agitation blades (31) located inside the tank (10). The agitation blades (31) are adapted to agitate the sewage inside the tank (10). A suction pipe (40) is connected to the inlet (12), and a portion of the suction pipe (40) is located inside the housing (10). The drain pipe (20) is connected to the suction pipe (40). The wastewater tank assembly also includes a filter cover (50), which is disposed on the inner side wall of the tank body (10) and covers the outside of the sewage outlet (11); The filter cover (50) is placed over the agitator blades (31); A sedimentation tank (13) is provided at the bottom of the box (10); The outer edge of the agitator blade (31) is adapted to the inner wall of the filter cover (50); The filter cover (50) has a cylindrical structure; The stirring mechanism (30) also includes a driving component (32), which is disposed on the outer side wall of the housing (10). The driving end of the driving component (32) passes through the side wall of the housing (10) and is connected to the stirring blade (31). The driving component (32) includes a motor, and the stirring mechanism (30) also includes a rotating shaft (33). The side wall of the housing (10) is provided with a mounting hole. The rotating shaft (33) passes through the mounting hole and is connected to the stirring blade (31). The motor drives the rotating shaft (33) to rotate.

2. The sump assembly of claim 1, wherein, A sealing structure is provided between the rotating shaft (33) and the mounting hole.

3. The sump assembly of any one of claims 1-2, wherein, The upper part of the suction pipe (40) extends to the top of the box (10).

4. A vehicle for sanitation, characterized by Includes the wastewater tank assembly as described in any one of claims 1 to 3.

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