CN220371839U - Sewage tank of base station and base station - Google Patents

Abstract

The utility model discloses a sewage tank of a base station and the base station. The sewage tank of the base station comprises a tank body and a spraying device, wherein the tank body is provided with a sewage accommodating cavity; the spraying device is rotatably arranged in the sewage containing cavity around a set axis, the spraying device comprises at least one water outlet, the water outlet is configured to enable water entering the spraying device to be sprayed out of the water outlet so as to flush the cavity wall of the sewage containing cavity, and the normal direction of the center of the water outlet is not collinear with the set axis. The automatic flushing effect of the sewage tank of the base station is better, the problems of residual garbage and odor are less likely to occur, and the frequency of manual cleaning of a user can be reduced or the user does not need to manually clean the sewage tank of the base station.

Description

Sewage tank of base station and base station

Technical Field

The utility model relates to the technical field of cleaning system parts, in particular to a sewage tank of a base station and the base station.

Background

The spraying device is arranged in the existing base station sewage tank, and can spray water into the base station sewage tank to flush the inner wall of the sewage tank, so that the possibility of odor of the sewage tank caused by garbage or impurities and the like remaining in the base station sewage tank is reduced.

However, in the prior art, the spray header of the spray device in the base station sewage tank is usually fixed, so that the flushing position of the spray device on the inner wall of the sewage tank is single and fixed, and the flushing effect is not good enough.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, an object of the present utility model is to provide a sewage tank of a base station, which has better automatic flushing effect, is less prone to have problems of residual garbage and odor, and can reduce the number of times of manual cleaning by a user or make the user not need to manually clean.

A sewage tank of a base station according to an embodiment of the first aspect of the present utility model includes:

the sewage treatment device comprises a box body, a water tank and a water tank, wherein the box body is provided with a sewage accommodating cavity;

the spraying device is rotatably arranged in the sewage containing cavity around a set axis, the spraying device comprises a water outlet, the water outlet is configured to enable water entering the spraying device to be sprayed out of the water outlet so as to flush the cavity wall of the sewage containing cavity, and the normal direction of the center of the water outlet is not collinear with the set axis.

According to the sewage tank of the base station, the rotatable spraying assembly is arranged in the sewage containing cavity of the tank body, so that the water outlet of the spraying assembly can be directed to different positions of the cavity wall of the sewage containing cavity along with the rotation of the spraying assembly, the different positions of the cavity wall of the sewage containing cavity are washed, the self-cleaning effect of the sewage tank of the base station is better, the problems of residual garbage and odor are less prone to occurring, the frequency of manually cleaning the sewage tank of the base station by a user can be reduced, or the user does not need to manually clean the sewage tank of the base station, and the user experience is improved.

According to some embodiments of the utility model, the normal direction of the center of the water outlet is different from the set axis.

According to some embodiments of the utility model, the spray device comprises a pipe and a plurality of spray assemblies, the pipe and the box are rotatably connected around the set axis;

the spray assembly comprises a first straight pipe section and a second straight pipe section which are perpendicular to each other, wherein the inlet end of the first straight pipe section is connected with the pipe fitting, the inlet end of the second straight pipe section is connected with the outlet end of the first straight pipe section, the outlet end of the second straight pipe section is the water outlet, and the central axis of the first straight pipe section is perpendicular to the set axis.

According to some embodiments of the utility model, the first straight tube sections of the plurality of spray assemblies are arranged centrally symmetrically about the set axis.

According to some embodiments of the utility model, the number of the spraying assemblies is two, and water outlets of the two spraying assemblies face different areas of the side wall of the sewage containing cavity in the set axial direction respectively.

According to some embodiments of the utility model, the number of the spray assemblies is three, and water outlets of the three spray assemblies face different areas of the side wall of the sewage containing cavity in the set axial direction respectively.

According to some embodiments of the utility model, the first straight tube section is rotatably connected with the tube member such that a center normal direction of the water outlet is adjustable.

According to some embodiments of the utility model, the second straight tube segment comprises a straight tube connected to the first straight tube segment and a nozzle having the water outlet and disposed at an outlet end of the straight tube, wherein,

the spray head is inserted into the straight pipe, or the spray head is rotatably connected with the straight pipe through a ball head so that the direction of the central normal line of the water outlet can be adjusted.

According to some embodiments of the utility model, the water outlet has a long strip shape in a cross section perpendicular to the central normal direction.

The second aspect of the present utility model also proposes a base station.

A base station according to an embodiment of the second aspect of the utility model comprises a clean water tank and a sewage tank of the base station according to an embodiment of the first aspect of the utility model. The clean water tank is communicated with the sewage tank of the base station through a pipeline, and the pipeline is communicated with the spraying device and used for conveying water in the clean water tank to the spraying device. The base station according to the second aspect of the present utility model, including the sewage tank of the base station according to the first aspect of the present utility model, has at least the following advantages that by arranging the rotatable spraying device in the sewage containing cavity of the tank body, the water outlet of the spraying device can flush different positions of the cavity wall of the sewage containing cavity along with the rotation of the spraying device towards different positions of the cavity wall of the sewage containing cavity, thereby the self-cleaning effect of the sewage tank of the base station is better, the problems of residual garbage and odor are less likely to occur, the frequency of manually cleaning the sewage tank of the base station by a user or the sewage tank of the base station is not required to be manually cleaned by the user can be reduced, and the user experience is improved. In addition, by arranging the clear water tank, the base station of the second aspect of the embodiment of the utility model can be used without an external water supply source, and has stronger universality.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

fig. 1 is a schematic view illustrating an internal structure of a sewage tank of a base station according to an embodiment of the present utility model.

Fig. 2 is a schematic view illustrating an internal structure of a sewage tank of a base station according to another embodiment of the present utility model.

Fig. 3 is a bottom view of a spray device in one embodiment of the utility model.

Fig. 4 is a schematic perspective view of a spray device according to an embodiment of the present utility model.

Fig. 5 is a bottom view of a spray device in another embodiment of the utility model.

Fig. 6 is a schematic perspective view of a spray device according to another embodiment of the present utility model.

Fig. 7 is a schematic diagram of a first structure of a base station according to an embodiment of the present utility model.

Fig. 8 is a second schematic structural diagram of a base station according to an embodiment of the present utility model.

Fig. 9 is a schematic diagram of a diaphragm pump according to an embodiment of the present utility model.

Fig. 10 is a schematic structural view of a clean water tank according to an embodiment of the present utility model.

Reference numerals:

a sewage tank 100 of the base station;

a case 10;

a sewage containing chamber 110; a sewage tank body 120; a cover 130;

a spray device 20;

a water outlet 210; a tube 220;

spray assemblies 230, 230a, 230b, 230c, 230d, 230e; a first straight tube segment 2301;

a second straight tube segment 2302; a straight tube 23021; spray head 23022;

a base station 200;

a clean water tank 40; a second water supply pipe 50; a diaphragm pump 60; a base 70;

a second electromagnetic pressure reducing valve 501; a pipeline 80;

the axis L is set.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

The sewage tank 100 of the base station of the present utility model will be described with reference to fig. 1 to 10.

As shown in fig. 1 to 10, sewage in the sewage tank 100 of the base station according to the embodiment of the first aspect of the present utility model may be discharged into the sewage tank 100 of the base station according to the present utility model, and then discharged into a sewer line by the sewage tank 100 of the base station according to the present utility model.

As shown in fig. 1 and 2, a sewage tank 100 of a base station may include a tank 10 and a spraying device 20, the tank 10 having a sewage receiving chamber 110; the sewage containing cavity 110 is used for containing sewage discharged from a sewage tank of a floor washing machine or a floor sweeping machine, after the sewage in the sewage containing cavity 110 is discharged, the sewage containing cavity 110 needs to be cleaned or flushed, so that garbage, impurities and the like in the sewage are prevented from remaining in the sewage containing cavity 110, and the sewage containing cavity 110 is odorized after a long time.

The spraying device 20 is rotatably disposed in the sewage containing chamber 110 around a setting axis L, where the setting axis L may be an axis extending in the up-down direction of the tank 10, or may be an axis extending in the left-right or front-rear direction of the tank 10, and the spraying device 20 may be disposed in one or more ways, and may be disposed reasonably according to the cleaning effect and the design requirement.

The spray device 20 includes at least one water outlet 210, and preferably, two, three or four water outlets 210 may be provided. The more the water outlets 210, the greater the water pressure decay, and when two to three water outlets 210 are provided, the water pressure of the water discharged from the water outlets 210 can better meet the flushing requirements of the sprinkler 20. The water outlet 210 is configured such that water entering the spray device 20 can be sprayed out of the water outlet 210 to flush the cavity wall of the sewage receiving cavity 110 to flush garbage or impurities on the cavity wall of the sewage receiving cavity 110 down out of the sewage receiving cavity 110.

The spray device 20 is rotatably disposed in the sewage receiving chamber 110 around a set axis L, and the central normal direction of the water outlet 210 is not collinear with the set axis L. Thus, as the shower 20 rotates, the water outlet 210 may flush the walls of the sewage receiving chamber 110. When the number of the water outlets 210 is more than two, the positions of the water outlets 210 facing the cavity wall of the sewage containing cavity 110 can be changed continuously, so that the water outlets 210 can flush different positions of the cavity wall of the sewage containing cavity 110, and therefore, more comprehensive flushing can be realized, the flushing effect is better, the problems of residual garbage and odor are less likely to occur in the sewage containing cavity 110, and the times of manually cleaning the sewage tank 100 of the base station by a user can be reduced or the user does not need to manually clean the sewage tank 100 of the base station.

According to the sewage tank 100 of the base station in the embodiment of the utility model, the rotatable spraying device 20 is arranged in the sewage accommodating cavity 110 of the tank body 10, so that the water outlet 210 of the spraying device 20 can flush different positions of the cavity wall of the sewage accommodating cavity 110 along with the rotation of the spraying device 20 towards different positions of the cavity wall of the sewage accommodating cavity 110, the self-cleaning effect of the sewage tank 100 of the base station is better, the problems of residual garbage and odor are less likely to occur, the frequency of manually cleaning the sewage tank 100 of the base station by a user or the user does not need to manually clean the sewage tank 100 of the base station can be reduced, and the user experience is improved.

According to some embodiments of the present utility model, as shown in fig. 1 and 2, the central normal direction of the water outlet 210 is different from the set axis L. That is, the center normal direction of the water outlet 210 is neither parallel to or coincident with the set axis L nor intersects with the set axis L. As shown in fig. 4, the spraying device 20 may include a pipe 220, a first straight pipe section 2301 and a straight pipe 23021 which are sequentially connected, wherein the free end of the straight pipe section 23021 is provided with a water outlet 210, the central axis of the first straight pipe section 2301 is perpendicular to a set axis L, and the central axis of the straight pipe section 23021 is perpendicular to the central axis of the first straight pipe section 2301 and is not parallel to the set axis L; alternatively, the central axis of the first straight tube section 2301 is perpendicular to the set axis L, and the central axis of the straight tube 23021 intersects the central axis of the first straight tube section 2301 and is not parallel to the set axis L. The central normal direction of the water outlet 210 is different from the set axis L, i.e. the central normal direction of the water outlet 210 has a component in the rotation tangential direction of the water outlet 210, so that when water is discharged from the water outlet 210, the spraying device 20 can rotate while discharging water under the action of the reaction force of water pressure, and an external driving source is not required to be arranged to drive the spraying device 20 to rotate, thereby being beneficial to simplifying the structure and reducing the cost.

According to some embodiments of the present utility model, as shown in fig. 3 to 6, the spray device 20 includes a pipe 220 and a plurality of spray assemblies 230, the pipe 220 being rotatably connected with the cabinet 10 about a set axis L; the spray assembly 230 comprises a first straight pipe section 2301 and a second straight pipe section 2302 which are perpendicular to each other, wherein the inlet end of the first straight pipe section 2301 is connected with the pipe 220, the inlet end of the second straight pipe section 2302 is connected with the outlet end of the first straight pipe section 2301, the outlet end of the second straight pipe section 2302 is the water outlet 210, and the central axis of the first straight pipe section 2301 is perpendicular to the set axis L. In this way, the normal direction of the center of the water outlet 210 and the set axis L can be conveniently different, so that the spraying device 20 can rotate without external force, and meanwhile, the structure is simple, and the processing and the assembly are convenient.

In some embodiments, the pipe 220 and the spray assembly 230 are separate pieces, so that the spray assembly 230 is more versatile and can be connected to pipes 220 of different structural designs to form spray assemblies 230 having different numbers of water outlets 210.

According to some embodiments of the present utility model, as shown in fig. 3 to 6, the first straight pipe sections 2301 of the plurality of spray assemblies 230 are arranged in a central symmetry manner about the set axis L, so that the possibility of shaking the entire spray device 20 can be reduced, and the overall structural stability is good. For example, two spray assemblies 230 may be provided, with an angle of 180 ° between the central axes of the first straight tube sections 2301 of the two spray assemblies 230; the spray assemblies 230 may also be arranged in three ways, with the included angle between the central axes of the first straight tube sections 2301 of the three spray assemblies 230 being 120 ° in a plane perpendicular to the set axis L.

According to some embodiments of the present utility model, as shown in fig. 3 and 4, the number of the spraying assemblies 230 is two, namely, the spraying assembly 230a and the spraying assembly 230b, and the water outlet 210 of the spraying assembly 230a and the water outlet 210 of the spraying assembly 230b face different areas of the side wall of the sewage containing cavity 110 in the set axial direction, so that on one hand, the spraying area is larger, which is beneficial to flushing the cavity wall of the sewage containing cavity 110 more comprehensively and efficiently, and further reduces the possibility of garbage, impurities and the like remaining in the sewage containing cavity 110. On the other hand, the water pressure of the water exiting from the water outlet 210 is not too small, which is beneficial to ensuring the shower effect. The water outlet 210 of the spray assembly 230a and the water outlet 210 of the spray assembly 230b are respectively directed to different areas of the sidewall of the sewage containing chamber 110 in a set axial direction, for example, the spray device 20 may be disposed at the top of the sewage containing chamber 110, the set axial direction is an up-down direction, the water outlet 210 of the spray assembly 230a and the water outlet 210 of the spray assembly 230b are respectively directed to an area of the sidewall of the sewage containing chamber 110 near the top end and an area of the sidewall top of the sewage containing chamber 110, but not limited thereto, the water outlet 210 of the spray assembly 230 may be directed to other positions of the sidewall of the sewage containing chamber 110 according to actual shower effect requirements.

According to some embodiments of the present utility model, as shown in fig. 5 and 6, the number of the spraying assemblies 230 is three, namely, the spraying assembly 230c, the spraying assembly 230d and the spraying assembly 230e, and the water outlet 210 of the spraying assembly 230c, the water outlet 210 of the spraying assembly 230d and the water outlet 210 of the spraying assembly 230e face different areas of the side wall of the sewage containing cavity 110 in the set axial direction, so that on one hand, the cavity wall of the sewage containing cavity 110 is advantageously washed more comprehensively and efficiently, and the possibility that garbage, impurities and the like remain in the sewage containing cavity 110 is further reduced. On the other hand, the water pressure of the water exiting from the water outlet 210 is not too small, which is beneficial to ensuring the shower effect. The water outlet 210 of the spray assembly 230c, the water outlet 210 of the spray assembly 230d, and the water outlet 210 of the spray assembly 230e are respectively directed toward different areas of the sidewall of the sewage containing chamber 110 in a set axis direction, for example, the spray device 20 may be disposed at the top of the sewage containing chamber 110, the set axis direction is an up-down direction, and the water outlet 210 of the spray assembly 230c, the water outlet 210 of the spray assembly 230d, and the water outlet 210 of the spray assembly 230e are respectively directed toward an area of the sidewall of the sewage containing chamber 110 near the top, an area of the sidewall top of the sewage containing chamber 110, and an area of the middle of the sewage containing chamber 110.

According to some embodiments of the present utility model, as shown in fig. 3 to 6, a first straight tube segment 2301 is rotatably connected with the tube 220 such that the center normal direction of the outlet 210 is adjustable. During the relative rotation of the first straight tube segment 2301 and the tube member 220, the central axis of the straight tube 23021 of the second straight tube segment 2302 is always out of plane with the set axis L. And the included angle between the central normal line of the water outlet 210 and the set axis L remains unchanged during the rotation of the sprinkler 20, i.e. the first straight tube section 2301 does not rotate relative to the tube 220 during the rotation of the sprinkler 20.

When the user needs to adjust the outlet angle of the outlet 210 (corresponding to the direction of the central normal line of the outlet 210), for example, in the first state, the outlet 210 on the first straight pipe section 2301 faces the side wall of the sewage containing chamber 110 near the upper end, the first straight pipe section 2301 is rotated to make the first straight pipe section 2301 reach the second state, and in the second state, the outlet 210 on the first straight pipe section 2301 faces the side wall of the sewage containing chamber 110 near the lower end. In this way, on one hand, the spray device 20 can be more universal and can be suitable for sewage containing chambers 110 with different shapes and structures; on the other hand, the user can change the flushing position according to the dirt degree of different positions of the cavity wall of the sewage containing cavity 110 so as to achieve better cleaning effect.

In some embodiments, a seal is provided between the first straight tube segment 2301 and the tube 220 to maintain a good seal against water leakage, affecting the flushing effect of the sprinkler 20.

According to some embodiments of the present utility model, as shown in fig. 4 and 6, the second straight pipe section 2302 includes a straight pipe 23021 and a nozzle 23022, where the straight pipe section 23021 is connected to the first straight pipe section 2301, and the nozzle 23022 has a water outlet 210 and is disposed at an outlet end of the straight pipe section 23021, where the nozzle 23022 is plugged into the straight pipe section 23021, or the nozzle 23022 is rotatably connected to the straight pipe section 23021 through a ball head so as to enable a central normal direction of the water outlet 210 to be adjustable, so that, on one hand, the spray device 20 can be more universal and can be suitable for sewage containing chambers 110 with different shapes and configurations; on the other hand, the user can change the flushing position according to the dirt degree of different positions of the cavity wall of the sewage containing cavity 110 so as to achieve better cleaning effect.

According to some embodiments of the present utility model, as shown in fig. 3 and 5, the water outlet 210 has a long strip shape in a cross-section perpendicular to the center normal direction. Compared with the water outlet 210 with a single round hole in the cross section perpendicular to the central normal direction, the water sprayed out by the strip-shaped water outlet 210 is more dispersed, the washable area is larger, and the water outlet area is smaller, so that the water pressure sprayed out is larger.

In some embodiments, the straight tube 23021 may also be a shower nozzle, so that the water sprayed from the straight tube 23021 is more dispersed and the washable area is larger.

According to some embodiments of the present utility model, as shown in fig. 1 and 2, the spray device 20 is provided at the top of the sewage receiving chamber 110. Thus, the spray device 20 is not easily submerged by water and is not easily polluted, and the process of flushing the cavity wall of the sewage containing cavity 110 by spraying water from the spray device 20 is not easily affected. However, it is not limited thereto, and the spraying device 20 may be disposed at the middle or upper portion of the sewage receiving chamber 110 and connected to the bottom of the sewage receiving chamber 110 through a connection member or directly disposed on the sidewall of the sewage receiving chamber 110, which is within the scope of the present utility model.

In some embodiments, the spray device 20 may have a spherical shape (not shown), and the surface of the spherical spray device 20 is provided with the water outlet 210. The spray device 20 can be rotated by the rotation driving assembly to flush the cavity wall of the sewage receiving cavity 110.

In some embodiments, as shown in fig. 1 and 2, the sewage tank 100 of the base station includes a sewage tank body 120 and a tank cover 130, the sewage tank body 120 and the tank cover 130 together define a sewage receiving chamber 110, and the spraying device 20 is provided on the tank cover 130.

The second aspect of the present utility model also proposes a base station 200.

As shown in fig. 7 to 10, the base station 200 according to the embodiment of the second aspect of the present utility model includes the sewage tank 100 of the base station according to the embodiment of the first aspect of the present utility model. Since the base station 200 according to the second embodiment of the present utility model includes the sewage tank 100 according to the first embodiment of the present utility model, the base station 200 according to the second embodiment of the present utility model has at least the following advantages that the number of times of manually cleaning the sewage tank 100 of the base station by a user or the user without manually cleaning the sewage tank 100 of the base station can be reduced by providing the rotatable spraying device 20 in the sewage containing cavity 110 of the tank body 10, so that the water outlet 210 of the spraying device 20 can flush different positions of the cavity wall of the sewage containing cavity 110 along with the rotation of the spraying device 20, thereby improving the self-cleaning effect of the sewage tank 100 of the base station.

According to some embodiments of the present utility model, the sewage tank 100 of the base station is provided with a first water supply pipe for communicating the spray device 20 with an external water source, so that the external water source can directly supply water to the spray device 20, automatic water supply is realized, and a user does not need to manually supply water, so that the use is more convenient.

In some embodiments, a first electromagnetic relief valve is provided on the first water supply pipe to control the on-off of water in the sewage tank 100 entering the base station.

According to some embodiments of the present utility model, as shown in fig. 7 to 10, the base station 200 further includes a clean water tank 40, the clean water tank 40 and the sewage tank 100 of the base station are communicated through a pipe 80, and the pipe 80 is communicated with the shower device 20 for delivering water in the clean water tank 40 into the shower device 20. By providing the clear water tank 40, a user can manually add water into the clear water tank 40 to supply water to the spraying device 20, and the base station 200 can be normally used when no external water source exists.

In some embodiments, as shown in fig. 8, the fresh water tank 40 is connected to an external water source through the second water supply pipe 50, that is, the fresh water tank 40 may be directly connected to the external water source, so that automatic water supply of the fresh water tank 40 is achieved, thereby eliminating the need for a user to manually supply water.

In some embodiments, as shown in fig. 10, a second electromagnetic pressure reducing valve 501 is provided on the second water supply pipe 50, and the second electromagnetic pressure reducing valve 501 is used to control the on-off of water entering the clean water tank 40.

In some embodiments, as shown in fig. 6, a delivery member, such as a diaphragm pump 60, is disposed on the pipeline 80 to deliver the water in the clean water tank 40 to the spraying device 20, and meanwhile, the diaphragm pump 60 can also perform a pressurizing function, so that the water pressure of the water sprayed by the spraying device 20 is higher, and the flushing effect is better.

In some embodiments, as shown in fig. 7 to 9, the base station 200 includes a base 70, and the clean water tank 40 and the sewage tank 100 of the base station are detachably provided on the base 70, so as to facilitate replacement and disassembly for maintenance cleaning, etc.

In some embodiments, as shown in fig. 7 to 9, the clear water tank 40 and the sewage tank 100 of the base station are disposed side by side, and the diaphragm pump 60 is disposed between the clear water tank 40 and the sewage tank 100 of the base station.

The third aspect of the present utility model also provides a cleaning system.

The cleaning system according to the embodiment of the third aspect of the present utility model comprises the base station 200 according to the embodiment of the second aspect of the present utility model, and thus at least comprises the advantages of the base station 200 according to the embodiment of the second aspect of the present utility model, which are not described in detail herein.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. A sewage tank of a base station, comprising:

the sewage treatment device comprises a box body, a water tank and a water tank, wherein the box body is provided with a sewage accommodating cavity;

the spraying device is rotatably arranged in the sewage containing cavity around a set axis, the spraying device comprises at least one water outlet, the water outlet is configured to enable water entering the spraying device to be sprayed out of the water outlet so as to flush the cavity wall of the sewage containing cavity, and the normal direction of the center of the water outlet is not collinear with the set axis.

2. The sewage tank of the base station according to claim 1, wherein the central normal direction of the water outlet is different from the set axis.

3. The base station sewage tank of claim 1, wherein the spray device comprises a pipe and a plurality of spray assemblies, the pipe being rotatably connected with the tank about the set axis;

the spray assembly comprises a first straight pipe section and a second straight pipe section which are perpendicular to each other, wherein the inlet end of the first straight pipe section is connected with the pipe fitting, the inlet end of the second straight pipe section is connected with the outlet end of the first straight pipe section, the outlet end of the second straight pipe section is the water outlet, and the central axis of the first straight pipe section is perpendicular to the set axis.

4. A tank according to claim 3, wherein the first straight pipe sections of the plurality of spray assemblies are arranged centrally symmetrically about the set axis.

5. A sewage tank of a base station according to claim 3 or 4, wherein the number of the spray assemblies is two, and the water outlets of the two spray assemblies are respectively directed to different areas of the side wall of the sewage accommodating cavity in the set axial direction.

6. A sewage tank of a base station according to claim 3 or 4, wherein the number of the spray assemblies is three, and the water outlets of the three spray assemblies are respectively directed to different areas of the side wall of the sewage accommodating chamber in the set axial direction.

7. A sewer tank of a base station according to claim 3, characterised in that the first straight pipe section is rotatably connected to the pipe element such that the centre normal direction of the water outlet is adjustable.

8. A sewage tank of a base station according to claim 3, wherein the second straight pipe section comprises a straight pipe connected to the first straight pipe section and a nozzle having the water outlet and provided at an outlet end of the straight pipe, wherein,

the spray head is inserted into the straight pipe, or the spray head is rotatably connected with the straight pipe through a ball head so that the direction of the central normal line of the water outlet can be adjusted.

9. A sewage tank of a base station according to claim 1, wherein the water outlet has a long strip shape in a cross section perpendicular to the central normal direction.

10. A base station comprising a clean water tank and a sewage tank of the base station according to any one of claims 1-9, said clean water tank and said sewage tank of the base station being in communication via a pipe, said pipe being in communication with said spray means for delivering water in said clean water tank into said spray means.