Anti-backflow sewage tank structure applied to cleaning equipment

Abstract

The anti-backflow sewage tank structure applied to the cleaning equipment comprises a sewage tank, a water inlet is formed in the bottom of the sewage tank, and the water inlet extends inwards to form a sewage inlet pipeline; the tank cover is connected to an opening in the top of the sewage tank, an extraction opening is formed in the tank cover, an arc-shaped flow guide cover is arranged on the bottom side of the tank cover and corresponds to the water outlet end of the sewage inlet pipeline, and a partition plate for dividing an inner cavity of the sewage tank into an upper cavity and a lower cavity is arranged on the bottom side of the arc-shaped flow guide cover; a rubber plate corresponding to the filter holes is rotationally arranged on the bottom side of the partition plate; a backflow opening is formed in the bottom side of the partition plate and extends inwards to form a backflow pipe, and the water outlet end of the backflow pipe is communicated with the interior of the arc-shaped flow guide cover. According to the scheme, the inner cavity of the sewage tank is divided into the two relatively independent sealed cavities through the partition plate, the backflow pipe is used for guiding backflow sewage to the water outlet end of the sewage inlet pipeline, and the backflow sewage and the sewage which is just sucked up fall into the lower cavity again, so that the sewage is prevented from being sucked up by the suction motor, and the problem of backflow of the sewage can be solved.

Description

Technical Field

[0001] The utility model relates to the field of cleaning equipment, in particular to a sewage tank structure for preventing backflow used in cleaning equipment. Background Art

[0002] At present, the structure of the portable floor scrubbers on the market is as follows: including a cleaning main body and a handle bar, the cleaning main body and the handle bar are connected by a universal joint, and a clean water tank, a sewage tank, a vacuum pump and other devices are installed on the handle bar. The structure of the sewage tank is mostly as follows: including a box body, a box opening is formed on the box body, a water inlet pipe part and an air extraction pipe part are formed on the box body, the air extraction pipe part extends into the box body, and the air extraction pipe part is between the water inlet pipe part and the box opening; when in use, the sewage tank is installed on the handle bar of the floor scrubber, and a vacuum pump is installed below the sewage tank. The water inlet pipe part of the sewage tank is connected to the sewage suction hole set in the cleaning main body through a water pipe, and the air extraction pipe part of the sewage tank is connected to the air extraction port of the vacuum pump through an air channel, and the air channel is a cavity formed in the handle bar. The function of the sewage tank is to collect the sewage generated by the cleaning host during the cleaning process. The sewage tank uses a vacuum pump to extract the air in the box from the exhaust pipe part of the box body, so that negative pressure is formed in the sewage tank, thereby sucking away the sewage generated by the cleaning host during the cleaning process.

[0003] In actual use, there are often cleaning dead corners such as under the bed, which require the user to operate the cleaning equipment while lying down. In this state of use, the sewage in the sewage tank will flow back into the vacuum motor, thereby affecting the service life of the vacuum motor.

[0004] Therefore, in view of the shortcomings of the prior art, it is necessary to design an anti-backflow sewage tank structure used in cleaning equipment to solve the above problems. Utility Model Content

[0005] In order to overcome the above-mentioned deficiencies in the prior art, the utility model aims to provide a sewage tank structure for preventing backflow in cleaning equipment.

[0006] In order to achieve the above-mentioned purpose and other related purposes, the technical solution provided by the utility model is: a sewage tank structure for preventing backflow applied to cleaning equipment, comprising:

[0007] A sewage tank, wherein a water inlet is provided at the bottom of the sewage tank, and the water inlet extends inwardly to form a sewage inlet pipe;

[0008] A box cover, the box cover is connected to the top opening of the sewage tank, the box cover is provided with an air suction port, the bottom side of the box cover is provided with an arc-shaped flow guide cover, the arc-shaped flow guide cover is arranged corresponding to the water outlet end of the sewage inlet pipe, the bottom side of the arc-shaped flow guide cover is provided with a partition that divides the inner cavity of the sewage tank into two upper and lower cavities; the partition is provided with filter holes; the bottom side of the partition is provided with a reflux port, the reflux port extends inwardly to form a reflux pipe, and the water outlet end of the reflux pipe is connected to the inside of the arc-shaped flow guide cover.

[0009] The preferred technical solution is: a rubber plate corresponding to the filter hole is provided on the bottom side of the partition.

[0010] The preferred technical solution is: a sealing ring for sealingly connecting with the inner wall of the sewage tank is provided on the peripheral side of the partition.

[0011] The preferred technical solution is: the bottom side of the arc-shaped air deflector extends downward to form a side plate for connecting with the partition, and an air pressure balance hole is opened on the side plate.

[0012] A preferred technical solution is that the air suction port is arranged away from the user side of the cleaning device.

[0013] A preferred technical solution is that the reflux port is arranged away from the user side of the cleaning device.

[0014] Due to the application of the above technical solution, the utility model has the following beneficial effects:

[0015] The utility model proposes a sewage tank structure for preventing backflow used in cleaning equipment, which divides the inner cavity of the sewage tank into two relatively independent sealed cavities by a partition, and guides the backflowing sewage to the water outlet end of the sewage inlet pipe through a reflux pipe, and falls into the lower cavity again together with the sewage just sucked up, so as to prevent the sewage from being sucked up by the suction motor. This solution can solve the problem of sewage backflowing into the suction motor and affecting the service life of the suction motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a cross-sectional view of the sewage tank involved in the utility model.

[0017] Figure 2 The utility model is a schematic structural diagram of a sewage tank cover at a viewing angle.

[0018] Figure 3 It is a schematic structural diagram of the sewage tank cover involved in the utility model from another viewing angle. DETAILED DESCRIPTION

[0019] The following is a description of the implementation of the present invention by means of specific embodiments. People familiar with the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0020] See also Figure 1-Figure 3 . It should be noted that in the description of the present utility model, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third" and the like are only used to distinguish the description, and cannot be understood as indicating or implying relative importance. Terms such as "horizontal", "vertical", and "overhanging" do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0021] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, it can be a mechanical connection, it can be an electrical connection, it can be a direct connection, it can be indirectly connected through an intermediate medium, and it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] Example:

[0023] like Figures 1 to 3 As shown, according to an overall technical concept of the utility model, a sewage tank structure for preventing backflow applied to cleaning equipment is provided, comprising:

[0024] A sewage tank 1, wherein a water inlet 11 is provided at the bottom of the sewage tank 1, and the water inlet 11 extends inwardly to form a sewage inlet pipe 12;

[0025] A box cover 2 is connected to the top opening of the sewage tank 1. An air suction port 21 is provided on the box cover 2. An arc-shaped flow guide cover 22 is provided on the bottom side of the box cover 2. The arc-shaped flow guide cover 22 is arranged corresponding to the water outlet end of the sewage inlet pipe 12. A partition 23 is provided on the bottom side of the arc-shaped flow guide cover 22 to divide the inner cavity of the sewage tank 1 into two upper and lower cavities; filter holes 24 are provided on the partition 23; a reflux port 26 is provided on the bottom side of the partition 23, and the reflux port 26 extends inwardly to form a reflux pipe 27, and the water outlet end of the reflux pipe 27 is connected to the inside of the arc-shaped flow guide cover 22.

[0026] like Figures 1 to 3 As shown, in an exemplary embodiment of the present invention, a rubber plate 25 corresponding to the filter hole 24 is provided on the bottom side of the partition 23; it should be noted that the rubber plate 25 can be flushed open by the water flow of the upper cavity because it is provided on the bottom side of the partition 23, and when the sewage in the lower cavity flows back, the sewage impacts the rubber plate 25, which will block the filter hole 24, preventing the sewage from flowing back into the upper cavity through the filter hole 24. That is, the sewage can only flow to the outlet end of the sewage inlet pipe 12 through the return pipe 27, and fall into the lower cavity again together with the sewage just sucked up, preventing the sewage from being sucked up by the suction motor.

[0027] like Figures 1 to 3 As shown, in an exemplary embodiment of the present utility model, a sealing ring 3 for sealingly connecting with the inner wall of the sewage tank 1 is provided on the peripheral side of the partition 23 .

[0028] like Figures 1 to 3 As shown, in an exemplary embodiment of the present invention, the bottom side of the arc-shaped air deflector 22 extends downward to form a side plate 28 for connecting to the partition, and an air pressure balance hole 29 is opened on the side plate 28 to prevent airflow from gathering and balance the air pressure.

[0029] like Figures 1 to 3 As shown, in an exemplary embodiment of the present invention, the air suction port 21 is arranged away from the user side of the cleaning device to prevent sewage from gathering at the air suction port 21 and being sucked in by the vacuum motor when the cleaning device is lying flat.

[0030] like Figures 1 to 3 As shown, in an exemplary embodiment of the present invention, the return port 26 is arranged away from the user side of the cleaning device to reduce the amount of sewage flowing back into the upper cavity through the return pipe 27.

[0031] Therefore, the utility model has the following advantages:

[0032] The utility model proposes a sewage tank structure for preventing backflow used in cleaning equipment, which divides the inner cavity of the sewage tank into two relatively independent sealed cavities by a partition, and guides the backflowing sewage to the water outlet end of the sewage inlet pipe through a reflux pipe, and falls into the lower cavity again together with the sewage just sucked up, so as to prevent the sewage from being sucked up by the suction motor. This solution can solve the problem of sewage backflowing into the suction motor and affecting the service life of the suction motor.

[0033] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or alter the above embodiments without violating the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. The anti-backflow sewage tank structure used in cleaning equipment is characterized by: include: A sewage tank, wherein a water inlet is provided at the bottom of the sewage tank, and the water inlet extends inwardly to form a sewage inlet pipe; A box cover, the box cover is connected to the top opening of the sewage tank, the box cover is provided with an air suction port, the bottom side of the box cover is provided with an arc-shaped flow guide cover, the arc-shaped flow guide cover is arranged corresponding to the water outlet end of the sewage inlet pipe, the bottom side of the arc-shaped flow guide cover is provided with a partition that divides the inner cavity of the sewage tank into two upper and lower cavities; the partition is provided with filter holes; the bottom side of the partition is provided with a reflux port, the reflux port extends inwardly to form a reflux pipe, and the water outlet end of the reflux pipe is connected to the inside of the arc-shaped flow guide cover.

2. The anti-backflow sewage tank structure used in cleaning equipment according to claim 1 is characterized in that: A rubber plate corresponding to the filter hole is disposed on the bottom side of the partition.

3. The anti-backflow sewage tank structure used in cleaning equipment according to claim 1, characterized in that: A sealing ring for sealingly connecting with the inner wall of the sewage tank is arranged on the peripheral side of the partition.

4. The anti-backflow sewage tank structure used in cleaning equipment according to claim 1, characterized in that: The bottom side of the arc-shaped air deflector extends downward to form a side plate for connecting with the partition plate, and an air pressure balance hole is opened on the side plate.

5. The anti-backflow sewage tank structure used in cleaning equipment according to claim 1, characterized in that: The air suction port is arranged away from the user side of the cleaning device.

6. The anti-backflow sewage tank structure used in cleaning equipment according to claim 1, characterized in that: The return port is arranged away from the user side of the cleaning device.

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