Sewage tank and scrubber

Abstract

The utility model discloses a sewage tank and a scrubber, the sewage tank comprises a sewage tank shell, a sewage lining assembly and a joint piece, and the sewage tank shell comprises a sewage cavity and a sewage inlet pipeline; the sewage lining assembly is arranged on the sewage tank shell and located at the sewage mounting opening, the sewage lining assembly comprises a sewage falling cavity and an air return part, and the sewage falling cavity is communicated with the sewage cavity; the joint piece comprises a joint pipe, a first joint part and a second joint part, the first joint part is connected to the end part of the sewage inlet pipeline, and the second joint part is detachably arranged in the sewage falling cavity; or the first connector part is detachably arranged at the end part of the sewage inlet pipeline, and the second connector part is connected to the sewage falling cavity; wherein the sewage inlet pipeline, the connector piece, the sewage falling cavity, the sewage cavity and the air return part are communicated in sequence. The joint piece in the sewage tank can optimize the flow direction of the air flow during rotation, the sudden rotation of the air flow is avoided, and the flowing smoothness of the air flow is improved, so that the noise and the like are reduced, and the use experience of a user is improved.

Description

Technical Field

[0001] This application relates to the field of household appliance technology, and in particular to a wastewater tank and a floor scrubber. Background Technology

[0002] A floor scrubber is a cleaning device that integrates vacuuming, mopping, and scrubbing functions for cleaning floors. It includes a wastewater tank. During the process of water and air entering the wastewater tank under negative pressure, the flow of water and air is not smooth, resulting in significant noise and affecting the user experience. Utility Model Content

[0003] This application provides a wastewater tank and a floor scrubbing machine to solve the technical problem that when water and air enter the wastewater tank under negative pressure, the flow of water and air is not smooth, resulting in loud noise and affecting the user experience.

[0004] To address the aforementioned technical problems, this application proposes a sewage tank, comprising: a sewage tank shell, including a sewage cavity and an inlet pipe disposed within the sewage cavity, the sewage cavity having a sewage installation port; a sewage lining assembly, disposed on the sewage tank shell and located at the sewage installation port, the sewage lining assembly including a sewage discharge cavity and a return air section disposed on the upper part of the sewage discharge cavity; a connecting fitting between the sewage discharge cavity and the sewage cavity, including a connecting pipe and a first connecting portion and a second connecting portion disposed at both ends of the connecting pipe, the first connecting portion being connected to the end of the inlet pipe, and the second connecting portion being detachable from the sewage discharge cavity; or, the first connecting portion being detachable from the end of the inlet pipe, and the second connecting portion being connected to the sewage discharge cavity; wherein the inlet pipe, the connecting fitting, the sewage discharge cavity, the sewage cavity, and the return air section are sequentially connected.

[0005] The first joint is sealed to the end of the sewage inlet pipe, and the second joint is press-fitted to the sewage outlet cavity.

[0006] The first connector and the end of the sewage inlet pipe are provided with a connector insertion part, and the first connector and the end of the sewage inlet pipe are provided with a connector insertion groove. The connector insertion part is inserted into and sealed in the connector insertion groove. And / or, the side of the sewage discharge chamber or the second connector is provided with a first connector sealing part, and the second connector is interference-sealed to the side of the sewage discharge chamber through the first connector sealing part.

[0007] The second connector and the side of the sewage discharge chamber form a mating surface, which faces the end of the sewage inlet pipe and is inclined downward.

[0008] The sewage tank shell has a sewage handle on one outer side and an inlet pipe on the other inner side. When the sewage tank shell is tilted by the sewage handle, the height of the second joint is higher than the water level line when the sewage chamber is poured out at its maximum capacity.

[0009] The first joint and the end of the sewage inlet pipe are press-fitted together, and the second joint and the sewage outlet cavity are sealed together.

[0010] Wherein, a second joint sealing part is provided at the end of the sewage inlet pipe or the first joint part, and the first joint part is press-sealed to the end of the sewage inlet pipe by the second joint sealing part; and / or, a joint snap-fit ​​part is provided on one of the outer periphery of the second joint part and the outer periphery of the side of the sewage discharge cavity, and a joint snap-fit ​​groove is provided on the other of the outer periphery of the second joint part and the outer periphery of the side of the sewage discharge cavity, and the joint snap-fit ​​part snaps into and seals the joint snap-fit ​​groove.

[0011] The connector pipe is a bent connector pipe, which is arranged in an arc shape.

[0012] The sewage tank includes a sewage negative pressure component, which is located on the top of the sewage tank shell and is connected to the return air section.

[0013] To solve the above-mentioned technical problems, this application proposes a floor scrubbing machine, including the aforementioned wastewater tank.

[0014] This application's wastewater tank includes a wastewater tank shell, a wastewater liner assembly, and connectors. The wastewater tank shell includes a wastewater cavity and a wastewater inlet pipe disposed within the wastewater cavity. The wastewater cavity has a wastewater installation port. The wastewater liner assembly is disposed on the wastewater tank shell and located at the wastewater installation port. The wastewater liner assembly includes a wastewater discharge cavity and a return air section disposed at the upper part of the wastewater discharge cavity. The wastewater discharge cavity and the wastewater cavity are connected. The connector includes a connector pipe and a first connector portion and a second connector portion disposed at both ends of the connector pipe. The first connector portion is connected to the end of the wastewater inlet pipe, and the second connector portion is detachable from the wastewater discharge cavity. Alternatively, the first connector portion is detachable from the end of the wastewater inlet pipe, and the second connector portion is connected to the wastewater discharge cavity. The wastewater inlet pipe, connector, wastewater discharge cavity, wastewater cavity, and return air section are sequentially connected.

[0015] By installing the aforementioned connector between the end of the inlet pipe and the waste collection chamber, the airflow in the water vapor passes through the inlet pipe and connector pipe, flows downwards towards the waste collection chamber, and then flows upwards from the front of the waste collection chamber towards the return air section, forming a complete airflow direction. This connector optimizes the airflow direction during reversal, avoids abrupt airflow changes, improves the smoothness of airflow, thereby reducing noise and enhancing the user experience. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein:

[0017] Figure 1 This is a structural schematic diagram of the first embodiment of the sewage tank in this application;

[0018] Figure 2 This is a partial cross-sectional schematic diagram of the first embodiment of the sewage tank of this application;

[0019] Figure 3 yes Figure 2 The structural diagram of A shown below;

[0020] Figure 4 This is a partial schematic diagram of the first embodiment of the sewage tank of this application;

[0021] Figure 5 This is a schematic diagram of the connector in the first embodiment of the sewage tank of this application;

[0022] Figure 6 This is a partial cross-sectional schematic diagram of the first embodiment of the sewage tank of this application;

[0023] Figure 7 This is a cross-sectional schematic diagram of the second embodiment of the sewage tank in this application;

[0024] Figure 8 yes Figure 7 The structural diagram of B shown below;

[0025] Figure 9 This is a partial schematic diagram of the second embodiment of the sewage tank in this application;

[0026] Figure 10 This is a schematic diagram of the connector in the second embodiment of the sewage tank of this application;

[0027] Figure 11 This is a partial cross-sectional schematic diagram of the second embodiment of the sewage tank in this application.

[0028] Reference numerals: 20, Sewage tank; 21, Sewage tank shell; 211, Sewage cavity; 2111, Sewage installation port; 2112, Sewage handle; 212, Sewage inlet pipe; 22, Sewage lining assembly; 221, Sewage discharge cavity; 222, Return air section; 23, Connector; 231, Connector pipe; 232, First connector; 2321, Connector insertion part; 2322, Second connector sealing part; 233, Second connector; 2331, First connector sealing part; 2332, Connector snap-fit ​​groove; 2333, Connector sealing ring; 24, Sewage negative pressure assembly. Detailed Implementation

[0029] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0030] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0031] The wastewater tank and floor scrubbing machine provided by this utility model will be described in detail below with reference to the embodiments.

[0032] Please see Figure 1 , Figure 2 , Figure 3 as well as Figure 4 , Figure 1 This is a structural schematic diagram of the first embodiment of the sewage tank in this application; Figure 2 This is a partial cross-sectional schematic diagram of the first embodiment of the sewage tank of this application; Figure 3 yes Figure 2 The structural diagram of A shown below; Figure 4This is a partial schematic diagram of the first embodiment of the wastewater tank of this application. This application provides a wastewater tank. The wastewater tank 20 includes a wastewater tank shell 21 and a wastewater liner assembly 22. The wastewater tank shell 21 includes a wastewater cavity 211 and a wastewater inlet pipe 212. The wastewater inlet pipe 212 is disposed within the wastewater cavity 211. The wastewater inlet pipe 212 is integrally formed with the wastewater cavity 211; alternatively, the wastewater inlet pipe 212 is separately disposed from the wastewater cavity 211. When wastewater is drawn in, the wastewater inlet pipe 212 draws in air and forms water vapor. The water vapor flows from the wastewater inlet pipe 212 into the wastewater cavity 211. The wastewater cavity 211 stores the wastewater in the water vapor. The wastewater cavity 211 is provided with a wastewater installation port 2111. The wastewater installation port 2111 provides an installation position for the wastewater liner assembly 22. The wastewater liner assembly 22 is disposed on the wastewater tank shell 21. The wastewater liner assembly 22 is detachably and sealingly connected to the wastewater tank shell 21. When the wastewater liner assembly 22 is installed on the wastewater tank shell 21, the wastewater liner assembly 22 is located at the wastewater installation port 2111. The wastewater liner assembly 22 includes a wastewater discharge chamber 221 and a return air section 222. The wastewater discharge chamber 221 is used for the inflow of water vapor. The return air section 222 is used for the outflow of air in the water vapor. The return air section 222 is located on the upper part of the wastewater discharge chamber 221. The wastewater discharge chamber 221 and the wastewater chamber 211 are connected, and water vapor enters the wastewater chamber 211 from the wastewater discharge chamber 221.

[0033] The wastewater tank 20 also includes a connector 23. The connector 23 includes a connector pipe 231, a first connector portion 232, and a second connector portion 233. The first connector portion 232 is disposed at one end of the connector pipe 231. The second connector portion 233 is disposed at the other end of the connector pipe 231. The first connector portion 232 is detachable or fixed to one end of the connector pipe 231; the second connector portion 233 is detachable or fixed to the other end of the connector pipe 231. In this embodiment, the connector pipe 231, the first connector portion 232, and the second connector portion 233 are integrally formed or welded together.

[0034] The aforementioned connector 23 is disposed between the end of the sewage inlet pipe 212 and the sewage discharge chamber 221. The connector 23 serves a connecting function. There are at least two ways in which the connector 23 can be disposed between the sewage inlet pipe 212 and the sewage discharge chamber 221. For example, the first way the connector 23 can be disposed is as follows: The first connector portion 232 is connected to the end of the sewage inlet pipe 212. The connection method can be, but is not limited to, snap-fit, insertion, and welding. The second connector portion 233 is detachable from the sewage discharge chamber 221. The detachable method can be, but is not limited to, snap-fit, insertion, and abutment. When the sewage liner assembly 22 is removed from the sewage tank shell 21, the second connector portion 233 of the connector 23 is disconnected from the sewage discharge chamber 221, and the connector 23 is connected to the end of the sewage inlet pipe 212. When the sewage liner assembly 22 is installed on the sewage tank shell 21, the second connector portion 233 of the connector 23 is connected to the sewage discharge chamber 221.

[0035] The second type of connector 23 is configured as follows: The first connector portion 232 is detachable from the end of the sewage inlet pipe 212. Detachment can be achieved through, but is not limited to, snap-fit, plug-in, or abutment. The second connector portion 233 is connected to the sewage discharge chamber 221. The connection can be achieved through, but is not limited to, snap-fit, plug-in, and subsequent welding. When the sewage liner assembly 22 is removed from the sewage tank shell 21, the first connector portion 232 of the connector 23 is disconnected from the end of the sewage inlet pipe 212, and the connector 23 is connected to the sewage discharge chamber 221. When the sewage liner assembly 22 is installed on the sewage tank shell 21, the first connector portion 232 of the connector 23 is connected to the end of the sewage inlet pipe 212.

[0036] When the connector 23 is positioned between the end of the inlet pipe 212 and the wastewater discharge chamber 221, the inlet pipe 212, connector 23, wastewater discharge chamber 221, wastewater chamber 211, and return air section 222 are sequentially connected. Water vapor is drawn into the connector 23 and wastewater discharge chamber 221 from the inlet pipe 212, with wastewater in the water vapor falling into the wastewater chamber 211; the airflow in the water vapor flows from the wastewater chamber 211 and exits into the return air section 222. When the wastewater in the wastewater chamber 211 accumulates to a certain volume, the wastewater tank 20 is removed from the floor scrubber to empty the wastewater.

[0037] By installing the aforementioned connector 23 between the end of the inlet pipe 212 and the waste collection chamber 221, the airflow in the water vapor passes through the inlet pipe 212 and connector 231, flows downwards towards the waste collection chamber 221, and then flows upwards from the front of the waste collection chamber 221 towards the return air section 222, forming a complete airflow direction. The connector 23 optimizes the airflow direction during air reversal, avoids abrupt airflow turns, improves the smoothness of airflow, thereby reducing noise and enhancing the user experience.

[0038] Please see Figure 5 , Figure 5 This is a structural schematic diagram of the connector in the first embodiment of the sewage tank of this application. (Combined with...) Figures 1 to 4 In some embodiments, the first connector 232 and the end of the sewage inlet pipe 212 are sealed together, ensuring both the connection between the first connector 232 and the end of the sewage inlet pipe 212 and the airtightness between them. The sealing method can be, but is not limited to, welding and sealing rings.

[0039] In one specific embodiment, one of the first connector portion 232 and the end of the sewage inlet pipe 212 is provided with a connector insertion portion 2321. The other of the first connector portion 232 and the end of the sewage inlet pipe 212 is provided with a connector insertion groove (not shown in the figure). The connector insertion portion 2321 is inserted into and sealed in the connector insertion groove, realizing a sealed connection between the first connector portion 232 and the end of the sewage inlet pipe 212, thereby improving the sealing performance between the first connector portion 232 and the sewage inlet pipe 212.

[0040] In this embodiment, the first connector portion 232 is provided with a connector insertion portion 2321. The connector insertion portion 2321 is welded to or integrally formed on the first connector portion 232. A connector insertion groove is provided at the end of the sewage inlet pipe 212. The connector insertion portion 2321 of the first connector portion 232 is inserted into the connector insertion groove at the end of the sewage inlet pipe 212, and then the connector insertion portion 2321 is welded into the connector insertion groove, etc. This arrangement improves the convenience of sealing the connector 23 to the end of the sewage inlet pipe 212.

[0041] In other embodiments, a connector insertion groove is provided at the end of the first connector portion 232. A connector insertion portion 2321 is provided at the end of the sewage inlet pipe 212. The connector insertion portion 2321 is welded or integrally formed to the end of the sewage inlet pipe 212. The connector insertion portion 2321 at the end of the sewage inlet pipe 212 is inserted into the connector insertion groove of the first connector portion 232, and then the connector insertion portion 2321 is welded into the connector insertion groove, etc.

[0042] In another specific embodiment, one of the outer periphery of the first connector portion 232 and the outer periphery of the end of the sewage inlet pipe 212 is provided with a connector snap-fit ​​portion (not shown in the figure). One of the outer periphery of the first connector portion 232 and the outer periphery of the end of the sewage inlet pipe 212 is provided with a connector snap-fit ​​groove 2332. The connector snap-fit ​​portion snaps into and seals within the connector snap-fit ​​groove 2332, thereby achieving a sealed connection between the first connector portion 232 and the end of the sewage inlet pipe 212, and thus improving the sealing performance between the first connector portion 232 and the sewage inlet pipe 212.

[0043] In one embodiment, a connector snap-fit ​​portion is provided on the outer periphery of the first connector portion 232. The connector snap-fit ​​portion is integrally formed or welded to the outer periphery of the first connector portion 232. A connector snap-fit ​​groove 2332 is provided on the outer periphery of the end of the sewage inlet pipe 212. When the connector snap-fit ​​portion of the first connector portion 232 snaps into the connector snap-fit ​​groove 2332 on the outer periphery of the sewage inlet pipe 212, it can tighten the connector sealing ring (not shown in the figure) on the outer periphery of the sewage inlet pipe 212, achieving a sealed connection between the first connector portion 232 and the end of the sewage inlet pipe 212, thereby improving the convenience of sealing the connector 23 to the end of the sewage inlet pipe 212.

[0044] In another embodiment, a connector locking groove 2332 is provided on the outer periphery of the first connector portion 232. A connector locking portion is provided on the outer periphery of the end of the sewage inlet pipe 212. The connector locking portion is integrally formed or welded to the outer periphery of the end of the sewage inlet pipe 212. When the connector locking portion at the end of the sewage inlet pipe 212 engages with the connector locking groove 2332 on the outer periphery of the first connector portion 232, it can tighten the connector sealing ring on the outer periphery of the first connector portion 232, thereby achieving a sealed connection between the first connector portion 232 and the end of the sewage inlet pipe 212.

[0045] In some embodiments, the second connector 233 and the waste collection chamber 221 are press-fitted together, ensuring a detachable connection between the second connector 233 and the waste collection chamber 221 while also maintaining a tight seal between them. The sealing connection method described above can be, but is not limited to, using a connector sealing ring, etc.

[0046] In one specific embodiment, a first connector sealing part 2331 is provided on the side of the waste collection chamber 221 or the second connector portion 233. The second connector portion 233 is press-fitted against the side of the waste collection chamber 221 through the first connector sealing part 2331. The first connector sealing part 2331 can be provided in two positions. The first connector sealing part 2331 can be a sealing rubber structure, such as a connector sealing ring.

[0047] When the first connector sealing part 2331 is provided on the side of the sewage discharge chamber 221, the first connector sealing part 2331 can be detached or fixed to the side of the sewage discharge chamber 221. The first connector sealing part 2331 on the side of the sewage discharge chamber 221 seals against the second connector part 233, achieving a sealed abutment between the second connector part 233 of the connector 23 and the side of the sewage discharge chamber 221. When the second connector part 233 is provided with the first connector sealing part 2331, the first connector sealing part 2331 can be detached or fixed to the end of the second connector part 233. The side of the sewage discharge chamber 221 seals against the first connector sealing part 2331, achieving a sealed abutment between the first connector sealing part 2331 of the connector 23 and the sewage discharge chamber 221.

[0048] In some embodiments, a mating surface (not shown in the figure) may be formed at the connection position between the second connector portion 233 and the side of the sewage discharge chamber 221. The mating surface faces the end of the sewage inlet pipe 212 and is inclined downward. By defining the above-mentioned mating surface, when the sewage liner assembly 22 is installed downward on the sewage tank shell 21, a certain component force of the sewage discharge chamber 221 can act on the second connector portion 233 of the connector 23, thereby improving the sealing performance between the second connector portion 233 of the connector 23 and the sewage discharge chamber 221.

[0049] Please see Figure 6 , Figure 6This is a partial cross-sectional schematic diagram of the first embodiment of the sewage tank of this application. Combined with... Figures 1 to 5 In some embodiments, a sewage handle 2112 is provided on the outer side of one end of the sewage tank shell 21. The sewage handle 2112 is convenient for the user to grasp with their fingers or hands. The specific structure of the sewage handle 2112 is not limited. The sewage inlet pipe 212 is located on the inner side of the other end of the sewage tank shell 21. That is, the sewage inlet pipe 212 is distributed on the side of the sewage tank shell 21 opposite to where the sewage handle 2112 is located. The sewage inlet pipe 212 and the sewage handle 2112 are arranged opposite to each other. When the sewage in the sewage tank 20 reaches a certain volume, the user acts on the sewage handle 2112, that is, the sewage tank shell 21 tilts under the action of the sewage handle 2112, and the sewage in the sewage cavity 211 is discharged through the sewage installation port 2111 on the side close to the sewage inlet pipe 212.

[0050] Because the height of the second connector portion 233 of the connector 23 is higher than the water level line when the sewage chamber 211 is poured at its maximum capacity, the sewage can avoid the second connector portion 233 when the sewage in the sewage tank 20 is poured. This reduces the risk of sewage from the sewage tank 20 entering the sewage inlet pipe 212 through the second connector portion 233 and causing sewage to backflow from the bottom of the sewage inlet pipe 212, thereby improving the user experience. By raising the height of the end of the sewage inlet pipe 212 through the second connector portion 233, the risk of sewage backflow when the sewage tank 20 is poured is effectively avoided, greatly improving the user experience.

[0051] Please see Figure 7 as well as Figure 8 , Figure 7 This is a cross-sectional schematic diagram of the second embodiment of the sewage tank in this application; Figure 8 yes Figure 7 The structural diagram of B shown is illustrated. (Combined with...) Figures 1 to 6 In some embodiments, the first connector 232 and the end of the sewage inlet pipe 212 are press-fitted together. While ensuring a detachable connection between the first connector 232 and the end of the sewage inlet pipe 212, it is also necessary to ensure a tight seal between them to reduce water and air leakage. The aforementioned sealing connection method can be, but is not limited to, using a connector sealing ring 2333, etc.

[0052] In one specific embodiment, a second connector sealing part 2322 is provided at the end of the sewage inlet pipe 212 or the first connector portion 232. The first connector portion 232 is press-fitted against the end of the sewage inlet pipe 212 through the second connector sealing part 2322. The second connector sealing part 2322 can be provided in two positions. The second connector sealing part 2322 can be a sealing rubber-coated structure, such as a connector sealing ring 2333.

[0053] When the end of the sewage inlet pipe 212 is provided with a second joint sealing part 2322, the second joint sealing part 2322 can be detached or fixed to the end of the sewage inlet pipe 212. The second joint sealing part 2322 on the end of the sewage inlet pipe 212 seals against the first joint part 232, realizing a sealed abutment between the first joint part 232 of the connector 23 and the end of the sewage inlet pipe 212. When the first joint part 232 is provided with a second joint sealing part 2322, the second joint sealing part 2322 can be detached or fixed to the end of the first joint part 232. The end of the sewage inlet pipe 212 is sealed and pressed against the second joint sealing part 2322.

[0054] In some embodiments, the second connector 233 and the waste collection chamber 221 are sealed together, ensuring both the connection and the seal between them. The sealing method can be, but is not limited to, welding and a connector sealing ring 2333.

[0055] Please see Figure 9 , Figure 9 This is a partial schematic diagram of the second embodiment of the wastewater tank of this application. (In conjunction with...) Figures 1 to 8 In one specific embodiment, one of the outer periphery of the second connector portion 233 and the outer periphery of the waste collection cavity 221 is provided with a connector snap-fit ​​portion. One of the outer periphery of the second connector portion 233 and the outer periphery of the waste collection cavity 221 is provided with a connector snap-fit ​​groove 2332. The connector snap-fit ​​portion snaps into and seals within the connector snap-fit ​​groove 2332, achieving a sealed connection between the second connector portion 233 and the waste collection cavity 221, thereby improving the sealing performance between the second connector portion 233 and the waste collection cavity 221.

[0056] In one embodiment, a connector snap-fit ​​portion is provided on the outer periphery of the second connector portion 233. The connector snap-fit ​​portion is integrally formed or welded to the outer periphery of the second connector portion 233. A connector snap-fit ​​groove 2332 is provided on the outer periphery of the waste collection cavity 221. When the connector snap-fit ​​portion of the second connector portion 233 snaps into the connector snap-fit ​​groove 2332 on the outer periphery of the waste collection cavity 221, it can tighten the connector sealing ring 2333 on the outer periphery of the waste collection cavity 221, achieving a sealed connection between the second connector portion 233 and the waste collection cavity 221, thereby improving the convenience of sealing the connector 23 to the waste collection cavity 221.

[0057] In this embodiment, a connector locking groove 2332 is provided on the outer periphery of the second connector portion 233. A connector locking portion is provided on the outer periphery of the waste collection cavity 221. The connector locking portion is integrally formed or welded to the outer periphery of the waste collection cavity 221. When the connector locking portion of the waste collection cavity 221 engages with the connector locking groove 2332 on the outer periphery of the second connector portion 233, it can lock the connector sealing ring 2333 on the outer periphery of the second connector portion 233, thereby achieving a sealed connection between the second connector portion 233 and the waste collection cavity 221.

[0058] In one specific embodiment, one of the second connector portion 233 and the waste collection chamber 221 is provided with a connector insertion portion 2321. The other of the second connector portion 233 and the waste collection chamber 221 is provided with a connector insertion groove. The connector insertion portion 2321 is inserted into and sealed in the connector insertion groove, thereby achieving a sealed connection between the second connector portion 233 and the waste collection chamber 221.

[0059] In one embodiment, the second connector portion 233 is provided with a connector insertion portion 2321. The waste collection chamber 221 is provided with a connector insertion groove. The connector insertion portion 2321 of the second connector portion 233 is inserted into the connector insertion groove of the waste collection chamber 221, and then the connector insertion portion 2321 is welded into the connector insertion groove, etc. In other embodiments, the end of the second connector portion 233 is provided with a connector insertion groove. The waste collection chamber 221 is provided with a connector insertion portion 2321. The connector insertion portion 2321 of the waste collection chamber 221 is inserted into the connector insertion groove of the second connector portion 233, and then the connector insertion portion 2321 is welded into the connector insertion groove, etc.

[0060] In some embodiments, the connector 23 is a bent pipe. The bent pipe is arc-shaped. That is, there is an arc transition between the sewage inlet pipe 212 and the sewage outlet chamber 221, which not only improves the smoothness of water and air flow, but also improves the stability of the pipe installed between the sewage inlet pipe 212 and the sewage outlet chamber 221.

[0061] The aforementioned sewage inlet pipe 212 is vertically arranged. That is, there is a vertical seal between the first joint 232 of the connector pipe 231 and the end of the sewage inlet pipe 212; and a horizontal seal between the second joint 233 of the connector pipe 231 and the side of the sewage discharge chamber 221, etc.

[0062] Please see Figure 10 as well as Figure 11 , Figure 10 This is a schematic diagram of the connector in the second embodiment of the sewage tank of this application; Figure 11 This is a partial cross-sectional schematic diagram of the second embodiment of the wastewater tank in this application. Combined with... Figures 1 to 9 In some embodiments, the wastewater tank 20 includes a wastewater negative pressure assembly 24. The wastewater negative pressure assembly 24 is disposed on the top of the wastewater tank housing 21. The wastewater negative pressure assembly 24 communicates with the return air section 222. The wastewater negative pressure assembly 24 provides suction force so that water vapor sequentially enters the wastewater chamber 211 from the inlet pipe 212, connector 23, and wastewater discharge chamber 221, and then the airflow in the wastewater chamber 211 is drawn from the return air section 222 to the wastewater negative pressure assembly 24. The aforementioned wastewater negative pressure assembly 24 may be, but is not limited to, a vacuum fan, used to draw airflow from inside the wastewater tank 20, etc.

[0063] See Figures 1 to 11This application provides a floor scrubbing machine. The floor scrubbing machine (not shown in the figure) is used for cleaning floors, etc. The floor scrubbing machine includes a wastewater tank 20. It should be noted that the wastewater tank 20 in this embodiment is the same as the wastewater tank 20 described in the above embodiments, and will not be repeated here. By using the aforementioned wastewater tank 20, the airflow in the water-air mixture passes through the wastewater inlet pipe 212 and the connector pipe 231, flows downwards to the wastewater discharge chamber 221, and then flows upwards from the front of the wastewater discharge chamber 221 to the return air section 222, forming a complete airflow direction. The aforementioned connector 23 optimizes the airflow direction during rotation, avoids sudden airflow turns, improves the smoothness of airflow, thereby reducing noise and improving the user experience.

[0064] The terms "first," "second," and "third" in this application are for descriptive purposes only and should not be construed as indicating the number of technical features indicated. Therefore, a feature defined as "first," "second," or "third" may explicitly or implicitly include at least one of those features. All directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationships and movements between components in a specific orientation (as shown in the figures). If the specific orientation changes, the directional indications will also change accordingly. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. A process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or devices.

[0065] The above description is merely an embodiment of this application and does not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A sewage tank, characterized in that, include: The sewage tank shell includes a sewage cavity and a sewage inlet pipe disposed within the sewage cavity, wherein the sewage cavity is provided with a sewage installation port; A sewage lining assembly is disposed on the sewage tank shell and located at the sewage installation port. The sewage lining assembly includes a sewage discharge chamber and a return air section disposed on the upper part of the sewage discharge chamber. The sewage discharge chamber and the sewage chamber are in communication. The connector includes a connector tube and a first connector portion and a second connector portion disposed at both ends of the connector tube. The first connector portion is connected to the end of the sewage inlet pipe, and the second connector portion is detachable from the sewage discharge chamber; or, the first connector portion is detachable from the end of the sewage inlet pipe, and the second connector portion is connected to the sewage discharge chamber. The inlet pipe, the connector, the sewage discharge chamber, the sewage chamber, and the return air section are connected in sequence.

2. The sewage tank according to claim 1, characterized in that, The first connector is sealed to the end of the sewage inlet pipe, and the second connector is press-fitted to the sewage discharge chamber.

3. The sewage tank according to claim 2, characterized in that, One of the first connector portion and the end of the sewage inlet pipe is provided with a connector insertion portion, and one of the first connector portion and the end of the sewage inlet pipe is provided with a connector insertion groove, wherein the connector insertion portion is inserted into and sealed in the connector insertion groove. And / or, the side of the waste collection chamber or the second connector is provided with a first connector sealing part, and the second connector is press-fitted to the side of the waste collection chamber through the first connector sealing part.

4. The sewage tank according to claim 2, characterized in that, A mating surface is formed between the second connector and the side of the sewage discharge chamber, and the mating surface faces the end of the sewage inlet pipe and is inclined downward.

5. The sewage tank according to claim 2, characterized in that, A sewage handle is provided on the outer side of one end of the sewage tank shell, and the sewage inlet pipe is located on the inner side of the other end of the sewage tank shell; when the sewage tank shell is tilted under the action of the sewage handle, the height of the second joint is higher than the water level line when the sewage cavity is poured at its maximum capacity.

6. The sewage tank according to claim 1, characterized in that, The first connector and the end of the sewage inlet pipe are press-fitted together, and the second connector and the sewage discharge chamber are sealed together.

7. The sewage tank according to claim 6, characterized in that, A second joint sealing part is provided at the end of the sewage inlet pipe or the first joint part, and the first joint part is press-sealed to the end of the sewage inlet pipe by the second joint sealing part. And / or, one of the outer periphery of the second connector portion and the outer periphery of the side of the sewage discharge cavity is provided with a connector snap-fit ​​portion, and the other of the outer periphery of the second connector portion and the outer periphery of the side of the sewage discharge cavity is provided with a connector snap-fit ​​groove, wherein the connector snap-fit ​​portion snaps into and seals the connector snap-fit ​​groove.

8. The sewage tank according to claim 1, characterized in that, The connector pipe is a bent connector pipe, and the bent connector pipe is arranged in an arc shape.

9. The sewage tank according to any one of claims 1 to 8, characterized in that, The sewage tank includes a sewage negative pressure component, which is disposed on the top of the sewage tank shell and is connected to the return air section.

10. A floor scrubbing machine, characterized in that, Includes the wastewater tank as described in any one of claims 1 to 9.

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