Sewage tank for scrubber and scrubber

Abstract

The utility model belongs to the technical field of cleaning equipment, and discloses a sewage tank for a scrubber and the scrubber, the sewage tank for the scrubber comprises a tank body, a suction pipe and a non-return piece; a containing cavity is formed in the box body, and an air exhaust hole communicating the containing cavity with the outside is further formed in the box body; the first end of the suction pipe is located in the containing cavity and communicates with the containing cavity, the second end of the suction pipe is connected to the side, away from the suction hole, of the box, and an open hole is formed in the position, corresponding to the second end of the suction pipe, of the box. The non-return piece is arranged at the port of the first end of the suction pipe, and the non-return piece can prevent sewage in the containing cavity from flowing back to the suction pipe. According to the sewage tank for the scrubber and the scrubber, sewage can be prevented from flowing back to the ground through the suction pipe when the scrubber is in a lying state, and the possibility of ground pollution is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of cleaning equipment, in particular to a sewage tank for a floor scrubber and the floor scrubber. Background Art

[0002] Existing floor scrubbers typically have both the clean water tank and the wastewater tank mounted on the machine body. Because the wastewater drawn into the tank needs to be separated, with solids and wastewater remaining in the tank and gases discharged through it, the tank is typically positioned relatively high to ensure complete separation of water vapor. However, this design prevents the machine from being tilted down to clean under beds or other low work surfaces. This is because when the machine is tilted down, the water in the wastewater tank will flow back through the sewage pipes installed inside the tank onto the ground, causing ground contamination. Utility Model Content

[0003] The utility model aims to provide a sewage tank for a floor scrubber and a floor scrubber, so as to solve the problem that sewage easily flows back to the ground and causes ground pollution when the floor scrubber is lying down.

[0004] To achieve this purpose, the present invention adopts the following technical solutions:

[0005] In the first aspect, the utility model proposes a sewage tank for a floor scrubber, comprising a tank body, a suction pipe and a check piece; a accommodating chamber is provided in the tank body, and an air suction hole connecting the accommodating chamber and the outside is also provided on the tank body; the first end of the suction pipe is located in the accommodating chamber and is connected to the accommodating chamber, the second end of the suction pipe is connected to a side of the tank body away from the air suction hole, and an opening is provided in the tank body at a position corresponding to the second end of the suction pipe; the check piece is provided at the first end port of the suction pipe, and the check piece can prevent the sewage in the accommodating chamber from flowing back into the suction pipe.

[0006] Optionally, the anti-return member comprises a flexible closing door, which maintains a tendency to block the first end port of the suction tube.

[0007] Optionally, a mounting seat is provided on the outer wall of the suction pipe, and a mounting groove and a connecting hole connected to the mounting groove are provided on the mounting seat. A first limiting protrusion extending along the port axis direction of the first end of the suction pipe is also provided on the inner wall of the mounting groove. The flexible closed door includes a door body, a first plug-in portion and a second plug-in portion. The first plug-in portion is inserted into the mounting groove, and a limiting groove cooperating with the first limiting protrusion is provided on the first plug-in portion. The second plug-in portion passes through the connecting hole, and a second annular limiting protrusion is provided on the second plug-in portion. The second limiting protrusion and the first limiting portion are respectively located at the axial ends of the connecting hole.

[0008] Optionally, the normal direction of the surface where the opening is located is arranged at an angle to the normal direction of the surface where the port of the first end of the suction pipe is located.

[0009] Optionally, the sewage tank includes a first blocking portion, which is arranged between the first end port of the suction pipe and the inner wall of the tank body to block sewage from flowing toward the first end port of the suction pipe.

[0010] Optionally, the first blocking portion cooperates with the inner wall of the box to form a shielding space, the shielding space is closed away from one end of the suction pipe, and the first end of the suction pipe is located in the shielding space.

[0011] Optionally, the sewage tank further includes a second blocking portion, which is arranged on the inner wall of the tank body and faces the port of the first end of the suction pipe.

[0012] Optionally, a protrusion protruding in a direction away from the suction pipe is further formed on the inner wall surface of the box body on the side facing away from the port of the first end of the suction pipe.

[0013] Optionally, the sewage tank further includes a water-absorbing sponge, and the water-absorbing sponge blocks the air extraction hole.

[0014] In a second aspect, the utility model provides a floor scrubber, comprising a body, a fan, and a sewage tank for a floor scrubber as described in any one of the above items, wherein the sewage tank for the floor scrubber is arranged on the body and connected to the fan through an exhaust hole.

[0015] Beneficial effects of the utility model:

[0016] The above-mentioned sewage tank and floor scrubber for the floor scrubber are such that when the floor scrubber is operating normally, the fan connected to the air suction hole forms a negative pressure environment in the accommodating chamber, and the sewage enters the suction pipe through the port at the second end of the suction pipe, and is then discharged into the accommodating chamber from the first end of the suction pipe, thereby collecting the sewage. When the floor scrubber is in a lying state and the sewage in the accommodating chamber tends to flow back into the suction pipe, the check member is impacted by the sewage and blocks the port at the first end of the suction pipe, thereby preventing the sewage in the accommodating chamber from flowing back to the ground through the suction pipe, thereby reducing the possibility of causing ground pollution. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the three-dimensional structure of a sewage tank for a floor scrubber according to an embodiment of the present utility model;

[0018] Figure 2 This is a cross-sectional view of a sewage tank for a floor scrubber according to an embodiment of the present invention from one angle (the floor scrubber is in a lying position);

[0019] Figure 3This is a cross-sectional view of the sewage tank for the floor scrubber according to an embodiment of the present invention from another angle;

[0020] Figure 4 This is a schematic diagram of the exploded structure of a sewage tank for a floor scrubber according to an embodiment of the present utility model;

[0021] Figure 5 This is an assembly diagram of the non-return member and the suction pipe in the embodiment of the utility model;

[0022] Figure 6 It is a schematic diagram of the explosion structure of the non-return member and the suction pipe in the embodiment of the utility model.

[0023] In the picture:

[0024] 10. Main body; 11. Accommodating cavity; 12. Opening; 13. Handle; 14. Raised portion; 20. Cover; 21. Exhaust hole; 30. Suction pipe; 31. Mounting seat; 311. Mounting groove; 312. First limiting protrusion; 32. Straight pipe portion; 33. Bend pipe portion; 40. Flexible closed door; 41. Door body; 42. First plug-in portion; 43. Second plug-in portion; 431. Second limiting protrusion; 50. First blocking portion; 51. First baffle; 52. Second baffle; 60. Second blocking portion; 70. Water level monitoring component. DETAILED DESCRIPTION

[0025] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all of its components.

[0026] In the description of this utility model, unless otherwise specified or limited, the terms "connected," "connect," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0027] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0028] In the description of this embodiment, the terms "upper," "lower," "right," and other orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely for ease of description and simplified operation. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meaning.

[0029] refer to Figures 1-6 As shown, in an embodiment of the present invention, a sewage tank for a floor scrubber and a floor scrubber are provided. The floor scrubber includes a body, a fan, and the sewage tank provided in this embodiment. The sewage tank is disposed on the body and connected to the fan to collect sewage under the action of the fan. The sewage tank includes a housing, a suction pipe 30, and a check member. The housing is provided with a receiving chamber 11. The housing is also provided with an air extraction hole 21 connecting the receiving chamber 11 with the outside world. The air extraction hole 21 can be connected to the fan to form a negative pressure environment in the receiving chamber 11. The first end of the suction pipe 30 is located in the receiving chamber 11 and is connected to the receiving chamber 11. The second end of the suction pipe 30 is connected to a side of the housing away from the air extraction hole 21. The housing is provided with an opening 12 at a position corresponding to the second end of the suction pipe 30. The check member is provided at the port of the first end of the suction pipe 30. The check member can prevent the sewage in the receiving chamber 11 from flowing back into the suction pipe 30.

[0030] When the floor scrubber is operating normally, the fan connected to the air suction hole 21 forms a negative pressure environment in the accommodating chamber 11, and the sewage enters the suction pipe 30 through the port at the second end of the suction pipe 30, and then enters the accommodating chamber 11 from the first end of the suction pipe 30, thereby collecting the sewage. When the floor scrubber is in a lying state, once the sewage in the accommodating chamber 11 tends to flow back into the suction pipe 30, the check member blocks the port at the first end of the suction pipe 30 due to the impact of the sewage, thereby preventing the sewage in the accommodating chamber 11 from flowing back to the ground through the suction pipe 30, thereby reducing the possibility of causing ground pollution.

[0031] In this embodiment, reference Figure 2-Figure 3As shown, the check member includes a flexible closing door 40, which blocks the port at the first end of the suction pipe 30 in a normally closed form. When the floor scrubber is working normally, under a negative pressure environment, a gap is formed between the flexible closing door 40 and the port at the first end of the suction pipe 30 to allow sewage to enter the accommodating chamber 11 through the suction pipe 30. When the sewage in the accommodating chamber 11 tends to flow back to the suction pipe 30, the flexible closing door 40 blocks the port at the first end of the suction pipe 30, thereby preventing the sewage from flowing back. That is, the flexible closing door 40 relies on the elasticity of its own material to maintain the tendency to block the port at the first end of the suction pipe 30.

[0032] Specifically, refer to Figure 5-Figure 6 As shown, a mounting seat 31 is provided on the outer wall surface of the first end of the suction pipe 30, and a mounting groove 311 and a connecting hole arranged at the bottom of the mounting groove 311 and connected to the mounting groove 311 are provided on the mounting seat 31. At the same time, a first limiting protrusion 312 extending in the normal direction of the surface where the port of the first end of the suction pipe 30 is located is also provided on the inner wall of the mounting groove 311. The flexible closed door 40 includes a door body 41, a first plug-in portion 42 and a second plug-in portion 43. The shape of the door body 41 is adapted to the inner circumferential contour of the suction pipe 30, for example, it is set to be circular, the first plug-in portion 42 is connected to the door body 41, and the second plug-in portion 43 is connected to the door body 41. 3 is arranged on the side of the first plug-in portion 42 away from the door body 41. A limiting groove is provided on the first plug-in portion 42. The first plug-in portion 42 is inserted into the installation groove 311 and is limited along the tangential direction of the door body 41 by the first limiting protrusion 312 and the limiting groove that cooperate with each other. At the same time, an annular second limiting protrusion 431 is provided on the second plug-in portion 43. When the second plug-in portion 43 passes through the connecting hole, the second limiting protrusion 431 is squeezed and deformed and passes through the connecting hole. That is, the second limiting protrusion 431 and the first plug-in portion 42 are respectively located inside and outside the installing groove 311, preventing the first plug-in portion 42 from being separated from the installing groove 311.

[0033] It should be noted that the positive projection area of ​​the door body 41 toward the port of the first end of the suction tube 30 is larger than the inner circumferential contour size of the port of the first end of the suction tube 30, so as to maintain the tendency to abut against the end face of the first end of the suction tube 30, thereby blocking the port of the first end of the suction tube 30.

[0034] Exemplarily, the flexible closed door 40 is integrally formed with an elastic material such as rubber.

[0035] In other embodiments, the check member includes a check valve; or the check member includes a rigid closing door and an elastic member, the elastic member providing elastic force to the rigid closing member so that the rigid closing door maintains a tendency to block the first end port of the suction tube 30 .

[0036] refer to Figure 1 and Figure 3As shown, the box body includes a main body 10 and a cover body 20. The cover body 20 is detachably fixed to the main body 10 by means including but not limited to bolt connection and clip connection, and is combined with the main body 10 to form a accommodating cavity 11. The exhaust hole 21 is provided on the cover body 20, and the opening 12 is provided on the main body 10. The detachable connection between the cover body 20 and the main body 10 is conducive to the later cleaning of solid impurities accumulated inside the accommodating cavity 11.

[0037] refer to Figure 2 As shown, the normal to the surface where the opening 12 is located forms an angle with the normal to the surface where the port at the first end of the suction pipe 30 is located. For example, the portion of the suction pipe 30 within the housing is configured in an L-shape. When the scrubber is in the lying position, the normal to the surface where the opening 12 is located is horizontal or approximately horizontal, and the port at the first end of the suction pipe 30 faces upward. This configuration further reduces the possibility of sewage within the accommodating chamber 11 entering the suction pipe 30 through the port at the first end of the suction pipe 30.

[0038] Specifically, in order to reduce the processing difficulty of the sewage tank, the suction pipe 30 includes a straight pipe portion 32 and a curved pipe portion 33, wherein the straight pipe portion 32 is integrally formed with the main body 10, and the end of the straight pipe portion 32 connected to the main body 10 is the second end of the suction pipe 30, and the curved pipe portion 33 is inserted into the other end of the straight pipe portion 32. The curved pipe portion 33 is approximately L-shaped, and the end of the curved pipe portion 33 away from the straight pipe portion 32 is the first end of the suction pipe 30, and the mounting seat 31 is fixed on the outer wall surface of the curved pipe portion 33.

[0039] refer to Figure 2-Figure 4 As shown, the sewage tank also includes a first blocking portion 50, which is arranged between the first end port of the suction pipe 30 and the inner wall of the body 10, and is used to block the sewage from flowing toward the first end port of the suction pipe 30, further reducing the possibility of sewage backflowing into the suction pipe 30.

[0040] Specifically, the first blocking portion 50 is fixed to the cover 20 and cooperates with the inner wall of the cover 20 to form a shielding space. The first end of the suction pipe 30 is located within the shielding space, and the shielding space is closed at the end away from the suction pipe 30. In this case, the first blocking portion 50 not only prevents sewage from flowing back into the suction pipe 30 when the floor scrubber is in the lying position, but also prevents sewage from entering the fan through the suction hole 21, ensuring normal operation of the floor scrubber.

[0041] More specifically, the first blocking portion 50 includes a first baffle 51 and a second baffle 52, wherein the first baffle 51 is configured to have a structure with an approximately U-shaped cross-section, and the opposite sides of the first baffle 51 can abut against the inner wall of the main body 10, and the second baffle 52 is connected to the end of the first baffle 51 away from the suction tube 30 and cooperates with the first baffle 51 and the inner wall of the cover body 20 to form the above-mentioned shielding space.

[0042] Continue to refer Figure 3 As shown, the sewage tank further includes a water level monitoring component 70, which is fixed to the cover 20 via the first blocking portion 50 and is used to monitor the water level in the accommodating chamber 11 and promptly process the sewage in the accommodating chamber 11. For example, the water level monitoring component 70 is a water level gauge.

[0043] When the sewage tank is in the inverted position and is pushed and pulled back and forth for scrubbing, it can easily cause a horizontal surge of sewage inside. This surging sewage can easily reach the air extraction hole 21, posing a significant risk of water ingress to the fan connected to the air extraction hole 21 for generating negative pressure. Therefore, the sewage tank also includes a second blocking portion 60, which is disposed on the inner wall of the main body 10 and directly opposite the port at the first end of the suction pipe 30. The second blocking portion 60 is used to prevent sewage from surging toward the air extraction hole 21 when the scrubber is in the inverted position.

[0044] Correspondingly, a protrusion 14 is formed on the inner wall surface of the main body 10 facing away from the first end port of the suction pipe 30. When the floor scrubber is lying down, the protrusion 14 is close to the ground. The setting of the protrusion 14 increases the distance between the inner wall of the main body 10 on the side close to the ground and the port of the first end of the suction pipe 30. The sewage blocked by the second blocking portion 60 can enter the protrusion 14, further reducing the possibility of sewage in the accommodating cavity 11 entering the suction pipe 30.

[0045] It is understandable that in order to form a negative pressure environment under the action of the fan, there must be a gap between the second blocking part 60 and the first blocking part 50. That is to say, the setting of the second blocking part 60 cannot completely prevent the sewage from surging toward the suction hole 21. On this basis, a water-absorbing sponge (not shown in the figure) is also sealed in the suction hole 21 to absorb the sewage.

[0046] Optionally, a third blocking portion (not shown in the figure) is also provided in the box body. The third blocking portion is arranged between the opening 12 and the first blocking portion 50 and is located on the same side as the second blocking portion 60 to further reduce the possibility of sewage flowing to the exhaust hole 21 through the gap between the second blocking portion 60 and the first blocking portion 50.

[0047] refer to Figure 1 As shown, a groove is formed at the position of the port of the first end of the suction pipe 30 on the body 10 and is recessed toward the accommodating cavity 11 . A handle 13 is provided at one end of the groove away from the hole 12 to facilitate carrying and lifting the entire floor scrubber.

[0048] Obviously, the above-described embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the manner in which the present invention is to be implemented. A person skilled in the art would be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. The sewage tank for floor scrubber is characterized by: include: A box body, wherein a receiving cavity (11) is provided in the box body, and an air extraction hole (21) communicating with the receiving cavity (11) and the outside is also provided on the box body; a suction pipe (30), wherein a first end of the suction pipe (30) is located in the accommodating cavity (11) and communicates with the accommodating cavity (11), a second end of the suction pipe (30) is connected to a side of the box body away from the air extraction hole (21), and an opening (12) is provided on the box body at a position corresponding to the second end of the suction pipe (30); A check member is provided at a port at the first end of the suction pipe (30), and the check member can prevent sewage in the accommodating chamber (11) from flowing back into the suction pipe (30).

2. The sewage tank for a floor scrubber according to claim 1, characterized in that: The anti-return member includes a flexible closing door (40) which maintains a tendency to block the port at the first end of the suction tube (30).

3. The sewage tank for a floor scrubber according to claim 2, characterized in that: A mounting seat (31) is provided on the outer wall surface of the suction pipe (30), and a mounting groove (311) and a connecting hole connected to the mounting groove (311) are provided on the mounting seat (31), and a first limiting protrusion (312) extending along the normal direction of the surface where the port of the first end of the suction pipe (30) is located is also provided on the inner wall of the mounting groove (311), and the flexible closed door (40) includes a door body (41), a first plug-in portion (42) and a second plug-in portion (43), the first plug-in portion (42) is connected to the door body (41) and inserted into the mounting groove (311), the first plug-in portion (42) is provided with a limiting groove that cooperates with the first limiting protrusion (312), the second plug-in portion (43) passes through the connecting hole, and the second plug-in portion (43) is provided with a ring-shaped second limiting protrusion (431), and the second limiting protrusion (431) is located outside the mounting groove (311).

4. The sewage tank for a floor scrubber according to claim 1, characterized in that: The normal line of the surface where the opening (12) is located and the normal line of the surface where the port of the first end of the suction pipe (30) is located are arranged at an angle.

5. The sewage tank for a floor scrubber according to claim 4, characterized in that: The sewage tank further comprises a first blocking portion (50), which is arranged between the first end port of the suction pipe (30) and the inner wall of the tank body to block sewage from flowing toward the first end port of the suction pipe (30).

6. The sewage tank for a floor scrubber according to claim 5, characterized in that: The first blocking portion (50) cooperates with the inner wall of the box to form a shielding space, the shielding space is closed at one end away from the suction pipe (30), and the first end of the suction pipe (30) is located in the shielding space.

7. The sewage tank for a floor scrubber according to claim 6, characterized in that: The sewage tank further comprises a second blocking portion (60), which is arranged on the inner wall of the tank body and faces the port of the first end of the suction pipe (30).

8. The sewage tank for a floor scrubber according to claim 7, characterized in that: A protrusion (14) is formed on the inner wall of the box body on the side of the port of the first end of the suction pipe (30) facing away from the suction pipe (30).

9. The sewage tank for a floor scrubber according to claim 1, characterized in that: The sewage tank also includes a water-absorbing sponge, which blocks the air extraction hole (21).

10. Floor scrubber, characterized in that: The floor scrubber comprises a body, a fan, and a sewage tank for a floor scrubber according to any one of claims 1 to 9, wherein the sewage tank is arranged on the body and connected to the fan through an air extraction hole (21).

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