A float for a sewage tank, a sewage tank, and a cleaning appliance

Abstract

The present application relates to a kind of sewage tank buoy, sewage tank and cleaning appliance, buoy includes buoy main body, sealing element, the inside of buoy main body is hollow;Sealing element is connected at the top of buoy main body, sealing element includes annular ring body, ring body has flanging, flanging extends in the direction away from the outside of the top of buoy main body;Sewage tank, including tank, buoy, tank has first inlet, first outlet, sewage area is formed in the inside of tank, first inlet, first outlet communicate sewage area, buoy is set in sewage area, and first outlet can be opened or closed according to buoyancy.This application is firmly attached to the sealing position on the sewage tank by the sealing flange of buoy, the greater the suction, the better the sealing, not easy to leak air and water, especially can seal sewage, so that water is isolated to the inside of sewage tank, will not be sucked to host, prevent damage to the host of cleaning equipment, its structure is simple, and the sealing effect is good.

Description

Technical Field

[0001] This invention belongs to the field of cleaning applications, specifically relating to a buoy for a sewage tank, a sewage tank, and cleaning tools. Background Technology

[0002] Currently, floor scrubbers and wet vacuum cleaners are the most widely used wet cleaning appliances, with a wastewater tank being an essential component. The wastewater tank is typically located on the vacuum cleaner's floor brush or the handle, storing the wastewater sucked up from the brush's suction port. Because the tank has a limited capacity, the vacuum cleaner needs to stop working when it's full. Therefore, many wastewater tanks incorporate a float to measure the water level. The float works by rising due to buoyancy in the wastewater until it reaches its maximum capacity. In existing technology, when the float reaches a set position, it triggers a mechanism to close the wastewater tank's vent, stopping suction. This method requires electrical components, resulting in a complex and costly structure. Some designs directly close the vent using the float, but with the float constantly moving, achieving a tight seal is difficult. If wastewater is sucked into the vent and enters the main unit, it can damage the machine. Summary of the Invention

[0003] The first objective of this invention is to provide a buoy for a sewage tank.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0005] A buoy for a sewage tank includes:

[0006] Buoy body: The buoy body is hollow inside;

[0007] Seal: The seal is connected to the top of the buoy body, and the seal includes an annular ring with a flange extending outward from the top of the buoy body.

[0008] Preferably, in the above technical solution, the sealing roll further includes a connecting base, the bottom of the ring is connected to the connecting base, and the connecting base is connected to the top of the buoy body.

[0009] Preferably, in the above technical solution, the material of the ring body is soft rubber.

[0010] Preferably, in the above technical solution, the buoy body includes a buoy bottom box and a buoy top cover. The buoy bottom box is hollow inside and open at the top. The buoy top cover is placed on the top of the buoy bottom box, and the sealing element is connected to the buoy top cover.

[0011] More preferably, the top of the buoy cover has a groove, and the bottom of the seal is engaged in the groove.

[0012] A second objective of this invention is to provide a sewage tank.

[0013] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0014] A sewage tank includes a tank body and a buoy. The tank body has a first inlet and a first outlet. A sewage zone is formed inside the tank body. The first inlet and the first outlet are connected to the sewage zone. The buoy is disposed in the sewage zone and can open or close the first outlet according to buoyancy. The buoy is the sewage tank buoy of this application.

[0015] Preferably, in the above technical solution, the box body has a channel that restricts the movement of the buoy in the vertical direction of the box body, and the buoy is disposed in the channel.

[0016] More preferably, the buoy cover has a limiting wall extending toward the interior of the buoy base box, the limiting wall forming the channel.

[0017] More preferably, a limiting groove is formed on the limiting wall, and the limiting groove extends along the moving direction of the buoy; a limiting block is provided on the buoy body, and the limiting block is movably disposed in the limiting groove.

[0018] More preferably, the limiting grooves are formed on opposite sides of the limiting wall.

[0019] Preferably, in the above technical solution, the tank includes a bottom box and a top cover. The top of the bottom box is open, the first inlet is located on the bottom box, and the sewage area is located inside the bottom box. The top cover is placed on the top of the bottom box, and the first outlet is located on the top cover. When the buoy closes the first outlet, the flange of the buoy fits against the top cover around the first outlet.

[0020] More preferably, the top cover of the box around the first outlet has a sealing surface that matches the flange, and the sealing surface is a smooth plane.

[0021] More preferably, the top cover of the box is provided with a second inlet, and the bottom box of the box is provided with a second outlet. The second inlet and the second outlet are connected to form an exhaust channel.

[0022] More preferably, the box body further includes a box body top cover, which is disposed on top of the box body upper cover and covers the first outlet and the second inlet. Airflow enters from the first inlet, passes through the first outlet and the second inlet, and exits from the second outlet.

[0023] More preferably, a shield is provided at the first outlet of the box cover, and the shield forms an angle greater than 0° and less than 90° with the surface where the first outlet is located.

[0024] A third objective of this invention is to provide a cleaning tool.

[0025] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0026] A cleaning appliance includes the wastewater tank described in this application, wherein the cleaning appliance is a floor cleaning machine, such as for floors or carpets.

[0027] Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art:

[0028] This invention features a buoy with a sealed flange that fits securely into the sealing position on the sewage tank. The greater the suction, the better the seal, making it less prone to air and water leakage. In particular, it can seal the sewage, isolating the water inside the sewage tank and preventing it from being sucked into the main unit, thus preventing damage to the main unit of the cleaning equipment. Its structure is simple and has a good sealing effect. Attached Figure Description

[0029] Appendix Figure 1 This is a schematic diagram showing the disassembled sewage tank of the present invention;

[0030] Appendix Figure 2 This is a three-dimensional schematic diagram of the sewage tank of the present invention;

[0031] Appendix Figure 3 This is a three-dimensional schematic diagram of the top cover of the box body of the present invention;

[0032] Appendix Figure 4 This is a schematic front sectional view of the wastewater tank of the present invention;

[0033] Appendix Figure 5 This is a cross-sectional schematic diagram of the sewage tank of the present invention (with the first outlet open);

[0034] Appendix Figure 6 This is a cross-sectional schematic diagram of the wastewater tank of the present invention (first outlet closed);

[0035] Appendix Figure 7 , 8 This is a schematic diagram showing the disassembled buoy of the present invention.

[0036] In the attached diagrams above:

[0037] 1. Container body; 10. Container bottom box; 100. Wastewater area; 101. First inlet; 102. Second outlet; 11. Container top cover; 110. First outlet; 111. Second inlet; 112. Sealing surface; 113. Limiting wall; 1130. Channel; 1131. Limiting groove; 114. Shield; 12. Container top cover;

[0038] 2. Buoy; 20. Buoy base box; 200. Limiting block; 21. Buoy top cover; 210. Groove; 22. Connecting base; 23. Ring body; 230. Flanged edge. Detailed Implementation

[0039] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0040] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0041] like Figure 1 , 2 The sewage tank shown includes a tank body 1 and a buoy 2. The tank body 1 has a first inlet 101 and a first outlet 110. A sewage zone 100 is formed inside the tank body 1. The first inlet 101 and the first outlet 110 are connected to the sewage zone. The buoy 2 is set in the sewage zone 100 and can open or close the first outlet 110 according to buoyancy.

[0042] In this embodiment: the box 1 includes a box bottom box 10, a box top cover 11, and a box top cover 12. The top of the box bottom box 10 is open, the sewage area 100 is located inside the box bottom box 10, the first inlet 101 is opened on the box bottom box 10, and the box bottom box 10 is also provided with a second outlet 102.

[0043] like Figure 3As shown: The top cover 11 of the box body is installed on the top of the bottom box 10. The first outlet 110 is opened on the top cover 11, and the top cover 11 around the first outlet 110 has a sealing surface 112, which is a smooth plane. A shield 114 is provided at the first outlet 110 of the top cover 11. The shield 114 forms an angle greater than 0° and less than 90° with the surface where the first outlet 110 is located, approximately 30° in the figure. This ensures that even if the airflow suction draws a small amount of sewage out of the first outlet 110, it will be blocked by the shield 114 and flow back into the bottom box 10. In addition, the top cover 11 also has a second inlet 111. The second inlet 111 and the second outlet 101 are connected to form an exhaust channel.

[0044] The housing 1 has a channel 1130 that restricts the movement of the buoy 2 in the vertical direction, and the buoy 2 is disposed within the channel 1130. In this embodiment, the buoy cover 11 has a limiting wall 113 extending toward the interior of the buoy base box 10, and the limiting wall 113 encloses the channel 1130. In addition, a limiting groove 1131 is formed on the limiting wall 113, which extends along the direction of movement of the buoy, that is, along the vertical direction. In the figure, the limiting groove 1131 is formed on opposite sides of the limiting wall 113.

[0045] The top cover 12 of the box is placed on top of the upper cover 11 of the box and covers the first outlet 110 and the second inlet 111 on the top cover 12 of the box.

[0046] The working principle of the chamber 1 is as follows: the suction force of the airflow draws sewage into the chamber 1 from the first inlet 101 and stores it in the bottom box 10. The airflow enters the space between the top cover 11 and the top cover 12 of the chamber from the first outlet 110, then flows back into the exhaust channel of the bottom box 10 through the second inlet 111, and finally flows out from the second outlet 102. Figure 5 As shown.

[0047] like Figure 7 , 8 As shown: Buoy 2 includes a buoy body and a sealing element. The buoy body is hollow inside, and the sealing element is connected to the top of the buoy body. In this embodiment:

[0048] The buoy body includes a buoy base box 20 and a buoy top cover 21. The buoy base box 20 is hollow inside and open at the top. The buoy top cover 21 is placed on top of the buoy base box 20, and a sealing element is connected to the buoy top cover 21. The buoy body can be made of plastic and can rise and fall in water due to buoyancy. A limit block 200 is provided on the buoy base box 20. The limit block 200 is movably set in the limit groove 1131. Correspondingly, the limit blocks 200 are also set on opposite sides of the buoy base box 20. In this way, the buoy 2 will not only stay in the correct position within the housing 1, but can also accurately open and close the first outlet 110 on the housing top cover 11. A groove 210 is formed on the top of the buoy top cover 21, and the bottom of the sealing element is engaged in the groove 210 to connect the two.

[0049] The sealing element includes a connecting base 22 and an annular ring 23. The bottom of the ring 23 is connected to the connecting base 22, and the connecting base 22 is engaged in the groove 210 of the buoy cover 21. The ring 23 has a flange 230 that extends outward away from the top of the buoy body. The ring 23 is made of soft rubber, which provides good sealing performance.

[0050] The working principle of buoy 2 is as follows: When buoy 2 is not in contact with the sewage inside tank 1, the limiting block 200 of buoy 2 sinks to the bottom of the limiting groove 1131. At this time, the first outlet 110 is normally open, and sewage can be drawn into tank 1 from the first inlet 101. Figure 4 , 5 As shown; when the sewage in the tank 1 increases, the buoy 2 moves upward due to buoyancy until the flange 200 of the buoy 2 is in contact with the sealing surface 112 around the first outlet 110, closing the first outlet 110. At this time, airflow cannot flow out from the first outlet 110, and sewage can no longer be drawn in. Figure 6 As shown.

[0051] The wastewater tank in this embodiment can be used with cleaning equipment, such as wet vacuum cleaners and floor scrubbers.

[0052] The above embodiments are only for illustrating the technical concept and features of the present invention, and are intended to enable those skilled in the art to understand the content of the present invention and implement it accordingly. They should not be construed as limiting the scope of protection of the present invention. All equivalent changes or modifications made in accordance with the spirit and essence of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A sewage tank, comprising a tank body and a buoy, wherein the tank body has a first inlet and a first outlet, a sewage zone is formed inside the tank body, the tank body includes a tank bottom box and a tank top cover, the first outlet is opened on the tank top cover, the first inlet and the first outlet communicate with the sewage zone, the buoy is movably disposed within the sewage zone, and is capable of opening or closing the first outlet according to buoyancy, characterized in that: The buoys include: Buoy body: The buoy body is hollow inside, and the buoy body includes a buoy bottom box and a buoy top cover; Sealing element: The sealing element is connected to the top of the buoy body. The top of the buoy cover has a groove, and the bottom of the sealing element is engaged in the groove. The sealing element includes an annular ring with a flange extending outward away from the top of the buoy body. The ring is made of soft rubber. The top cover of the box around the first outlet has a sealing surface that matches the flange. The sealing surface is a smooth plane. When the buoy closes the first outlet, the flange of the buoy fits against the sealing surface around the first outlet.

2. The sewage tank according to claim 1, characterized in that: The container has a channel that restricts the buoy from moving vertically within the container, and the buoy is disposed within the channel.

3. The sewage tank according to claim 2, characterized in that: The buoy cover has a limiting wall extending toward the interior of the buoy box, the limiting wall enclosing the channel; The limiting wall has a limiting groove that extends along the moving direction of the buoy; the buoy body is provided with a limiting block that is movably disposed within the limiting groove.

4. The sewage tank according to claim 1, characterized in that: The top of the box body is open, the first inlet is located on the box body, and the sewage area is located inside the box body; the box body cover is placed on the top of the box body.

5. The sewage tank according to claim 4, characterized in that: The top cover of the box is provided with a second inlet, and the bottom box of the box is provided with a second outlet. The second inlet and the second outlet are connected to form an exhaust channel. The box body also includes a box body top cover, which is placed on top of the box body cover and covers the first outlet and the second inlet. Airflow enters from the first inlet, passes through the first outlet and the second inlet, and exits from the second outlet.

6. The sewage tank according to claim 1, characterized in that: The sealing element also includes a connecting base, the bottom of the ring body is connected to the connecting base, and the connecting base is connected to the top of the buoy body.

7. The sewage tank according to claim 1, characterized in that: The buoy bottom box is hollow inside and open at the top. The buoy top cover is placed on the top of the buoy bottom box, and the sealing element is connected to the buoy top cover.

8. A cleaning tool, characterized in that: It includes the wastewater tank as described in any one of claims 1-7.

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