CN217244131U - Sewage tank subassembly and floor cleaning machine - Google Patents

Abstract

The embodiment of the utility model provides a sewage case subassembly and floor cleaning machine, the sewage case subassembly includes: the upper part of the side surface of the sewage tank is provided with a sewage inlet; the sewage inlet guide pipe is arranged on a main machine shell of the floor washing machine, and the upper end of the sewage inlet guide pipe is connected with the sewage inlet; the adapter, it has first port and the second port that is linked together at least, first port with the lower extreme of advancing dirty pipe is connected, the second port with the mop subassembly of scrubber is connected. The utility model discloses sewage case subassembly can increase the effective volume of sewage case, and because the inside cavity that becomes of sewage incasement portion does benefit to the cleanness and the clearance to sewage incasement portion.

Description

Sewage tank subassembly and floor cleaning machine

Technical Field

The utility model belongs to the technical field of it is clean, especially, relate to a sewage case subassembly and floor cleaning machine.

Background

The sewage inlet of the sewage tank of the floor washing machine in the prior art is arranged at the bottom of the sewage tank, and then a guide pipe is connected with the sewage inlet to stretch into the sewage tank. Moreover, because the conduit is located in the waste tank, the conduit occupies the volume in the waste tank, so that the space between the conduit and the waste tank is reduced, and the difficulty of cleaning is increased compared with a waste tank without a conduit which is only an empty tank.

The Chinese utility model patent with the publication number of CN 215085574U discloses a sewage tank and a cleaning device, wherein the sewage tank comprises a sewage tank body and a filtering device arranged at the top of the sewage tank body; the bottom of the sewage tank body is provided with a sewage inlet communicated with the inner cavity of the sewage tank body, a sewage inlet channel connected with the sewage inlet is arranged in the sewage tank body, and the top of the sewage inlet channel is provided with a sewage outlet. Although the top setting that is close to sewage case body with the sewage outlet in this scheme can increase the effective volume of sewage case body, when sewage case body slope, still there is sewage and flows backward palirrhea phenomenon through the sewage outlet for the effective volume of sewage case body is less than actual volume. And advance dirty passageway and locate sewage case originally internally, cause clearance and clear influence inside the sewage case body, promote the clean degree of difficulty.

SUMMERY OF THE UTILITY MODEL

In view of the above problems in the prior art, an object of the embodiments of the present invention is to provide a sewage tank assembly with high volume utilization rate and easy cleaning.

The embodiment of the utility model provides a technical scheme who adopts is, a sewage case subassembly, be applied to on the floor cleaning machine, sewage case subassembly includes:

the upper part of the side surface of the sewage tank is provided with a sewage inlet;

the sewage inlet guide pipe is arranged on a main machine shell of the floor washing machine, and the upper end of the sewage inlet guide pipe is connected with the sewage inlet;

the adapter, it has first port and the second port that is linked together at least, first port with the lower extreme of advancing dirty pipe is connected, the second port with the mop subassembly of scrubber is connected.

The utility model discloses sewage case subassembly can increase the effective volume of sewage case, and because the inside cavity that becomes of sewage incasement portion does benefit to the cleanness and the clearance to sewage incasement portion.

In some embodiments, the main chassis of the scrubber is provided with an assembly hole; the sewage tank assembly further comprises a first sealing ring, the upper end of the sewage inlet guide pipe is sleeved with the first sealing ring, the upper end of the sewage inlet guide pipe is inserted into the assembly hole, and one end of the first sealing ring extends out of the assembly hole; the sewage case with the mainframe shell laminating, just advance dirty mouthful with the pilot hole butt joint, advance dirty mouthful the periphery with first sealing washer stretches out the sealed laminating of part outside the pilot hole. Through first sealing washer, both realized advancing dirty pipe and pilot hole sealed, realized the pilot hole again and the sealed of the dirty mouthful of advancing of sewage case, simplified the structure, saved spare part, the cost is reduced.

In some embodiments, a groove is formed in a side of the main housing for mounting the sewage tank, the sewage inlet conduit is disposed in the groove, a first sealing ring is sleeved at an upper end of the sewage inlet conduit, and the first sealing ring is in sealing fit with a periphery of the sewage inlet when the sewage tank is mounted on the main housing; the lower end of the sewage inlet guide pipe penetrates through the groove bottom of the groove and is connected with the first port of the adapter. Install into dirty pipe through the mode that sets up the recess on the mainframe shell, conveniently advance dirty pipe and dismantle from the mainframe shell and get off and wash.

In some embodiments, the first sealing ring comprises a socket part and an outer rim part, the outer rim part is connected to the periphery of one end of the socket part and extends to one side far away from the socket part, so that the inner diameter of the free end of the outer rim part is larger than that of the socket part; the upper end of the sewage inlet conduit is sleeved with the sleeving part, and the outer edge part is used for being hermetically attached to the periphery of a sewage inlet of the sewage tank. The first sealing ring is simple in structure and reasonable in design, and the sealing effect can be guaranteed.

In some embodiments, the inner wall of the spigot joint part abutting one end of the outer rim part is provided with a first annular groove; and a circle of convex teeth are arranged on the periphery of the port at the upper end of the sewage inlet guide pipe, and the convex teeth are embedded in the first annular groove. Through the cooperation of convex tooth and ring channel, prevent first sealing washer drunkenness, promote sealed effect.

In some embodiments, the thickness of the free end of the outer rim portion is less than the thickness of other portions of the outer rim portion; and a second annular groove is arranged between the outer edge part and the sleeve part. So, the relative portion of cup jointing of the outer fringe of being convenient for takes place deformation to better and the dirty mouthful cooperation of advancing is sealed.

In some embodiments, the adapter is a tee, and a third port of the tee is provided with a detachable sealing plug. The three-way pipe is adopted as the adapter, materials are convenient to obtain, and quick connection can be realized.

In some embodiments, the outer periphery of the first port of the adapter is provided with at least one circle of groove, an O-shaped sealing ring is arranged in the groove, and the lower end of the sewage inlet conduit is nested outside the first port and is sealed by the O-shaped sealing ring. The connection is quick and convenient, and the sealing performance after the connection can be ensured.

The embodiment of the utility model provides a floor cleaning machine simultaneously, include the host computer, locate the mop subassembly of host computer bottom and connect in the handle on host computer upper portion, floor cleaning machine still includes above-mentioned arbitrary embodiment sewage case subassembly, sewage case subassembly is located on the mainframe shell of host computer. This floor scrubber is because its sewage case can store more sewage under the same volume condition to improve duration, avoid empting sewage many times, improve work efficiency.

In some embodiments, the main housing comprises a front housing and a rear housing which are connected in a snap-fit manner, and the rear housing comprises a mounting wall, and an outward-facing outer wall surface of the mounting wall is used for being attached to the sewage tank; the mounting wall is provided with an assembling hole; the outer wall surface surrounding the assembling hole for one circle is inwards concave to form a concave part; the fitting hole protrudes outward toward one end of an inner wall surface of the mounting wall, which is opposite to the outer wall surface, to form a hollow protrusion. The pilot hole of this structure does benefit to and advances dirty pipe and advance dirty mouthful realization good cooperation, guarantees the stability of leakproofness and connection.

In some embodiments, the upper end of the dirt intake conduit comprises a reduced diameter section, a step being formed between one end of the reduced diameter section and the dirt intake conduit; the reducing section is used for extending into the assembling hole, and the step part is abutted against the end face of the hollow convex column. Therefore, the sewage inlet guide pipe is favorably and stably combined with the assembly hole.

In some embodiments, a groove is formed by partially recessing the mounting wall toward a side away from the sewage tank, the groove is in a long strip shape adapted to the sewage inlet conduit, and the sewage inlet conduit is disposed in the groove. The groove is easy to form, the structure is compact and stable, the sewage inlet guide pipe is equivalent to the outside of the main case, and when the sewage tank is dismounted from the main case, the sewage inlet guide pipe is exposed, so that the sewage tank is convenient to dismount and clean.

Compared with the prior art, the utility model discloses sewage case subassembly and floor cleaning machine's beneficial effect lies in, can increase the effective volume of sewage case, improves the volume utilization ratio, and the sewage case and advance the cleanness of dirty pipe easier.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention as claimed.

The summary of various implementations or examples of the technology described in this disclosure is not a comprehensive disclosure of the full scope or all features of the disclosed technology.

Drawings

In the drawings, which are not necessarily drawn to scale, like reference numerals may describe similar components in different views. Like reference numerals having letter suffixes or different letter suffixes may represent different instances of similar components. The drawings illustrate various embodiments, by way of example and not by way of limitation, and together with the description and claims, serve to explain the embodiments of the invention. The same reference numbers will be used throughout the drawings to refer to the same or like parts, where appropriate. Such embodiments are illustrative and not intended to be exhaustive or exclusive embodiments of the present apparatus or method.

Fig. 1 is an exploded view of a waste water tank assembly according to an embodiment of the present invention, showing a rear housing of a floor washing machine.

Fig. 2 is a cross-sectional view of a waste tank assembly according to an embodiment of the present invention, showing a rear housing of a floor washing machine.

Fig. 3 is an enlarged view of a portion a in fig. 2.

Fig. 4 is a schematic structural diagram of a first seal ring according to an embodiment of the present invention.

Fig. 5 is a sectional view of a first seal ring according to an embodiment of the present invention.

Fig. 6 is a schematic structural view of a sewage inlet conduit according to an embodiment of the present invention.

Fig. 7 is a schematic structural view of a floor washing machine according to an embodiment of the present invention, in which a part of the front shell is removed.

Fig. 8 is a partial sectional view of a floor washing machine according to an embodiment of the present invention.

Fig. 9 is an exploded view from one perspective of a sump assembly according to another embodiment of the present invention, showing the rear housing of the scrubber.

Figure 10 is an exploded view from another perspective of a sump assembly according to another embodiment of the present invention, showing the rear housing of the scrubber.

Fig. 11 is a cross-sectional view of a waste tank assembly of another embodiment of the present invention showing the rear housing of the scrubber.

Fig. 12 is an enlarged view of a portion B in fig. 11.

Reference numerals:

1-a sewage tank; 11-a sewage inlet;

2-a sewage inlet conduit; 21-convex teeth; 22-a reducing section; 23-a step portion; 24-a lug;

3-an adapter; 31-a first port; 32-a second port; 33-a third port; 34-a sealing plug; a 35-O-ring seal;

4-a first sealing ring; 41-a socket joint part; 42-an outer rim portion; 43-a first annular groove; 44-a second annular groove;

5-a host; 51-a front shell; 52-a rear shell; 53-mounting walls; 54-assembly holes; 55-a recess; 56-hollow boss; 57-convex column; 58-grooves;

6-a mop assembly; 7-a handle.

Detailed Description

In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined below to clearly and completely describe the technical solution of the embodiments of the present invention. It is to be understood that the embodiments described are some, not all embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive work based on the described embodiments of the present invention, belong to the protection scope of the present invention.

Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by those of ordinary skill in the art to which the invention belongs. The use of "first," "second," and similar terms in the description herein do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.

To maintain the following description of the embodiments of the present invention clear and concise, detailed descriptions of well-known functions and components may be omitted.

The embodiment of the utility model provides a sewage case subassembly, this sewage case subassembly is applied to on the floor cleaning machine for collect sewage, filth etc. As shown in fig. 1 and 2, the sewage tank assembly includes a sewage tank 1, a sewage inlet pipe 2, and an adapter 3. The upper part of the side surface of the sewage tank 1 is provided with a sewage inlet 11. The sewage inlet guide pipe 2 is arranged on a main machine shell of the floor washing machine, and the upper end of the sewage inlet guide pipe 2 is connected with the sewage inlet 11. The adapter 3 at least has a first port 31 and a second port 32 which are communicated with each other, the first port 31 is connected with the lower end of the sewage inlet conduit 2, and the second port 32 is connected with the mop component 6 of the floor washing machine.

The utility model discloses sewage case subassembly will advance dirty mouthful 11 and locate the side upper portion of sewage case 1, will advance dirty pipe 2 simultaneously and locate outside the sewage case 1 for the effective volume grow of sewage case 1 improves the volumetric utilization ratio of sewage case 1, and its inside becomes a cavity, does not have any to shelter from, and it becomes more convenient to 1 inside washing of sewage case. And the sewage inlet conduit 2 is arranged outside the sewage tank 1, so that the sewage inlet conduit 2 is convenient to clean.

In some embodiments, as shown in FIG. 1, the main chassis of the scrubber machine is provided with mounting holes 54; the waste tank assembly further comprises a first sealing ring 4. As shown in fig. 2 and 3, the first sealing ring 4 is sleeved on the upper end of the sewage inlet conduit 2. The upper end of the sewage inlet pipe 2 is inserted into the assembly hole 54, the outer wall of the first sealing ring 4 is attached to the hole wall of the assembly hole 54, and one end of the first sealing ring 4 extends out of the assembly hole 54. The sewage tank 1 is attached to the main chassis, the sewage inlet 11 is in butt joint with the assembly hole 54, and the periphery of the sewage inlet 11 is in sealing attachment with the part of the first sealing ring 4 extending out of the assembly hole 54. The first sealing ring 4 with the special structure not only realizes the sealing of the sewage inlet conduit 2 and the assembly hole 54, but also realizes the sealing of the assembly hole 54 and the sewage inlet 11 of the sewage tank 1, simplifies the structure, saves parts and reduces the cost on the premise of ensuring the sealing property.

The dirt intake conduit 2 may be located within the main housing, or may be located outside the main housing, in the manner shown in figures 1 and 2. As shown in fig. 9 to 11, a groove 58 is formed on one side of the main housing for accommodating the sewage tank 1, and the sewage inlet pipe 2 is disposed in the groove 58. The upper end of the sewage inlet conduit 2 is sleeved with a first sealing ring 4. When the sewage tank 1 is arranged on the main case, the first sealing ring 4 is in sealing fit with the periphery of the sewage inlet 11 of the sewage tank 1. The lower end of the sewage inlet conduit 2 passes through the groove bottom of the groove 58 and is connected with the first port 31 of the adapter 3. So, because the notch of recess 58 is outwards, advance dirty pipe 2 and be equivalent to the peripheral hardware for the main chassis, conveniently will advance dirty pipe 2 and dismantle from recess 58 and wash.

In some embodiments, as shown in fig. 4 and 5, the first seal ring 4 comprises a socket 41 and an outer rim 42. The outer edge portion 42 is connected to the outer periphery of one end of the socket portion 41 and extends to a side away from the socket portion 41. The socket portion 41 and the outer edge portion 42 are both cylindrical structures, and are concentrically arranged. The inner diameter of the free end of the outer edge portion 42 is larger than the inner diameter of the socket portion 41, so that the outer edge portion 42 is formed in a bell mouth shape. As shown in fig. 3 and 12, the sleeve portion 41 is sleeved outside the upper end of the dirt intake duct 2, and the outer edge portion 42 protrudes from the upper end of the dirt intake duct 2. When the dirt intake duct 2 runs inside the main housing, the outer edge portion 42 protrudes from the fitting hole 54 and is sealingly attached to the periphery of the dirt intake port 11 of the dirt tank 1. When the dirt intake duct 2 goes outside the main chassis, the outer edge 42 slightly protrudes from the opening of the groove 58 and is exposed, and when the sewage tank 1 is mounted on the main chassis, the outer edge 42 is opposite to the dirt intake port 11 of the sewage tank 1 and is in sealing fit with the periphery of the dirt intake port 11, so that the dirt intake port 11 is in sealing connection with the dirt intake duct 2. The first sealing ring 4 is simple in structure and reasonable in design, and can guarantee the sealing effect.

With continued reference to fig. 4 and 5, the inner wall of the end of the socket 41 abutting the outer edge 42 is provided with a first annular groove 43. As shown in fig. 6, a ring of convex teeth 21 is arranged on the periphery of the port at the upper end of the sewage inlet conduit 2, and the convex teeth 21 are embedded in the first annular groove 43, see fig. 3 and 12. So, can guarantee to advance the stability that dirty pipe 2 and first sealing washer 4 are connected, prevent first sealing washer 4 drunkenness, avoid influencing sealed effect.

In some embodiments, as shown in fig. 3 and 5, the thickness of the free end of the outer rim portion 42 is smaller than the thickness of the other portion of the outer rim portion 42, so as to better fit the outer periphery of the soil inlet 11 of the wastewater tank 1. A second annular groove 44 is formed between the outer edge part 42 and the sleeve part 41, so that the outer edge part 42 is deformed relative to the sleeve part 41 to better match and seal with the sewage inlet 11.

With continued reference to fig. 3, the outer wall surface of the main chassis surrounding the fitting hole 54 once is recessed inwardly to form a recess 55. The recess 55 communicates with the fitting hole 54. The fitting hole 54 projects outward toward one end of the inner wall surface opposite to the outer wall surface to form a hollow protrusion 56. The recessed portion 55 provides a space for deformation of the outer edge portion 42 so that the outer edge portion 42 can be well fitted to the soil inlet 11 of the wastewater tank 1. The hollow protrusion 56 may provide a length to the assembly hole 54, which facilitates increasing the amount of fitting and ensuring stability of connection and sealing.

In some embodiments, as shown in fig. 3 and 6, the upper end of the dirt intake conduit 2 includes a reduced diameter section 22, and a step 23 is formed between one end of the reduced diameter section 22 and the dirt intake conduit 2. The teeth 21 are provided at the free end of the reduced diameter section 22. When the reduced diameter section 22 extends into the fitting hole 54, the step 23 of the dirt intake duct 2 abuts against the hollow convex portion 56 of the fitting hole 54. In order to ensure the stability of the connection between the dirt intake duct 2 and the rear housing 52, the outer wall of the dirt intake duct 2 and the inner wall surface of the mounting wall 53 of the rear housing 52 may be fastened by a snap or a screw.

Further, as shown in fig. 1, a plurality of lugs 24 are disposed on the outer wall (the portion not including the diameter-reduced section 22) of the dirt intake duct 2, a plurality of protruding columns 57 with connecting holes are disposed on the inner wall, and screws are inserted into the corresponding lugs 24 and protruding columns 57, so as to mechanically connect the dirt intake duct 2 and the main chassis.

In some embodiments, as shown in fig. 1, 9 and 10, the adapter 3 is a tee. The third port 33 of the tee is provided with a removable sealing plug 34. The three-way pipe is adopted as the adapter 3, materials are convenient to obtain, and quick connection can be further realized. And an external device (such as a handheld cleaning head and the like) can be connected to the third port 33, so that the use function of the floor washing machine of the sewage tank assembly is increased.

In some embodiments, as shown in FIG. 1, the outer periphery of the first port 31 is provided with at least one ring of grooves in which an O-ring seal 35 is disposed. The lower end of the sewage inlet conduit 2 is nested outside the first port 31 and sealed by an O-shaped sealing ring 35. So, can realize into the high-speed joint of dirty pipe 2 and three-way pipe, can guarantee the leakproofness of both connections again.

The embodiment of the utility model provides a still provide a floor cleaning machine, as shown in figure 7 and figure 8, this floor cleaning machine includes host computer 5, locates the mop subassembly 6 of host computer 5 bottom and connects in the handle 7 on host computer 5 upper portion. The scrubber also comprises a sewage tank assembly (including a form that the sewage inlet conduit 2 is arranged in the main chassis and a form that the sewage inlet conduit 2 is arranged outside the main chassis) in any of the above embodiments, and the sewage tank assembly is arranged on the main chassis of the main machine 5. The utility model discloses floor scrubber because its sewage case 1 has under the same volumetric condition with prior art's sewage case 1, can store more sewage, can prolong duration, avoids empting sewage many times, improves work efficiency. And the cleaning work of the sewage tank 1 is easier and more convenient.

In some embodiments, continuing with fig. 7 and 8, the main chassis includes snap-fit front and rear chassis 51, 52. The rear case 52 includes a mounting wall 53, and a fitting hole 54 is provided on the mounting wall 53. The outer wall surface of the mounting wall 53 facing outward is adapted to be fitted to the waste water tank 1. Specifically, the outer side surface of the rear case 52 is recessed inward to form a cavity, and a cavity bottom wall of the cavity opposite to the cavity opening forms a mounting wall 53. The sewage tank 1 is detachably arranged in the concave cavity, and the side surface of the sewage tank 1 provided with the sewage inlet 11 is attached to the outer wall surface of the mounting wall 53.

When the sewage inlet guide pipe 2 is arranged in the main chassis, the sewage inlet 11 of the sewage tank 1 corresponds to the assembling hole 54 on the mounting wall 53 and is sealed by the first sealing ring 4, so that the sewage inlet 11 of the sewage tank 1 is communicated with the sewage inlet guide pipe 2 in a sealing way. When the sewage inlet conduit 2 is externally arranged on the main chassis, the mounting wall 53 is partially recessed towards one side away from the sewage tank 1 to form a groove 58, and the groove 58 is a vertically extending strip shape so as to be matched with the shape of the sewage inlet conduit 2. When the sewage tank 1 is installed on the installation wall 53, the sewage inlet 11 of the sewage tank 1 is directly butted with the upper end of the sewage inlet guide pipe 2 and is sealed by the first sealing ring 4.

The working process of the floor washing machine according to the embodiment of the present invention is described below with reference to fig. 8, wherein the arrow direction in fig. 8 indicates the flow direction of the sucked dirt:

when the floor cleaning machine works, under the action of a suction component (not shown in the figure) in the host machine 5, dirt such as sewage on the ground enters the first port 31 of the adapter 3 through the mop assembly 6, enters the sewage inlet guide pipe 2 through the adapter 3, then enters the sewage tank 1 through the assembly hole 54 and the sewage inlet 11, and the cleaning of the ground and the collection of the sewage are realized. Because negative pressure exists in the sewage inlet pipeline and the sewage tank 1 under the action of the suction component, the outer edge part 42 of the first sealing ring 4 is sucked under the action of the negative pressure and is tightly combined with the periphery of the sewage inlet 11, the sealing performance between the sewage inlet 11 of the sewage tank 1 and the assembly hole 54 is ensured, and leakage is avoided. In the process of washing the floor, if the main machine 5 is inclined, namely, the upper part of the sewage tank 1 is inclined towards the user (the direction of the rear shell 52), because the sewage inlet 11 is arranged at one side of the sewage tank 1 away from the user, when the sewage tank 1 is inclined, the sewage inlet 11 is lifted, and sewage in the sewage tank 1 cannot flow backwards to the sewage inlet conduit 2 from the sewage inlet 11.

The above description is intended to be illustrative, and not restrictive, and variations, modifications, substitutions, and alterations may be made to the above-described embodiments by those of ordinary skill in the art within the scope of the present disclosure. Also, the above-described examples (or one or more versions thereof) may be used in combination with each other, and it is contemplated that the embodiments may be combined with each other in various combinations or permutations.

Claims (12)

1. The utility model provides a sewage tank subassembly, is applied to on the scrubber, its characterized in that, sewage tank subassembly includes:

the upper part of the side surface of the sewage tank is provided with a sewage inlet;

the sewage inlet guide pipe is arranged on a main machine shell of the floor washing machine, and the upper end of the sewage inlet guide pipe is connected with the sewage inlet;

the adapter, it has first port and the second port that is linked together at least, first port with advance dirty pipe's lower extreme and be connected, the second port with the mop subassembly of scrubber is connected.

2. The waste water tank assembly of claim 1, wherein the main housing of the scrubber is provided with an assembly hole; the sewage tank assembly further comprises a first sealing ring, the upper end of the sewage inlet guide pipe is sleeved with the first sealing ring, the upper end of the sewage inlet guide pipe is inserted into the assembly hole, and one end of the first sealing ring extends out of the assembly hole; the sewage case with the mainframe shell laminating, just advance dirty mouthful with the pilot hole butt joint, advance dirty mouthful the periphery with first sealing washer stretches out the sealed laminating of part outside the pilot hole.

3. The waste water tank assembly of claim 1, wherein a groove is formed in one side of the main housing for mounting the waste water tank, the waste water inlet conduit is arranged in the groove, a first sealing ring is sleeved at the upper end of the waste water inlet conduit, and the first sealing ring is in sealing fit with the periphery of the waste water inlet when the waste water tank is mounted on the main housing; the lower end of the sewage inlet guide pipe penetrates through the groove bottom of the groove and is connected with the first port of the adapter.

4. The waste water tank assembly of claim 2 or 3, wherein the first gasket includes a socket portion and an outer rim portion, the outer rim portion being connected to an outer circumference of one end of the socket portion and extending to a side away from the socket portion, so that an inner diameter of a free end of the outer rim portion is larger than an inner diameter of the socket portion; the upper end of the sewage inlet guide pipe is sleeved with the sleeving part, and the outer edge part is used for being attached to the periphery of the sewage inlet of the sewage tank in a sealing mode.

5. The waste tank assembly of claim 4, wherein the inner wall of the socket portion abutting against the one end of the outer peripheral portion is provided with a first annular groove; and a circle of convex teeth are arranged on the periphery of the port at the upper end of the sewage inlet guide pipe, and the convex teeth are embedded in the first annular groove.

6. The waste tank assembly of claim 4, wherein the thickness of the free end of the outer rim portion is less than the thickness of the remainder of the outer rim portion; and a second annular groove is arranged between the outer edge part and the sleeve part.

7. The sump assembly of claim 1, wherein the adapter is a tee, and a third port of the tee is provided with a removable sealing plug.

8. The waste tank assembly of claim 1, wherein the adapter has at least one groove around the first port, an O-ring is disposed in the groove, and the lower end of the waste inlet pipe is nested outside the first port and sealed by the O-ring.

9. A floor washing machine, comprising a main machine, a mop component arranged at the bottom of the main machine and a handle connected with the upper part of the main machine, characterized in that the floor washing machine further comprises a sewage tank component as claimed in any one of claims 1 to 8, wherein the sewage tank component is arranged on a main machine shell of the main machine.

10. The floor washing machine of claim 9, wherein the main housing comprises a front housing and a rear housing that are snap-fit together, the rear housing comprising a mounting wall, an outward facing outer wall surface of the mounting wall for engaging the sump; the mounting wall is provided with an assembling hole; the outer wall surface surrounding the assembling hole for one circle is inwards concave to form a concave part; the assembly hole protrudes outward toward one end of the inner wall surface of the mounting wall, which is opposite to the outer wall surface, to form a hollow protrusion.

11. The floor scrubber of claim 10, wherein the upper end of the dirt intake conduit includes a reduced diameter section, and a step is formed between one end of the reduced diameter section and the dirt intake conduit; the reducing section is used for extending into the assembling hole, and the step part is abutted against the end face of the hollow convex column.

12. The floor washing machine as claimed in claim 10, wherein the mounting wall is partially recessed toward a side facing away from the waste water tank to form a groove, the groove is elongated to fit the dirt intake duct, and the dirt intake duct is disposed in the groove.

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