Sewage tank structure and cleaning machine

Abstract

The utility model provides a kind of sewage tank structure and cleaning machine, sewage tank structure is set in cleaning machine, and sewage tank structure includes: box, lid and liquid level prompt device;Wherein, air inlet pipe and air outlet pipe are equipped in box;Lid is set in box top;Lid bottom is equipped with covering part, covering part is set on air inlet pipe, for classifying liquid, impurity and gas inhaled into box;The movable component of liquid level prompt device rises to top with the liquid level in box, blocks gas to air outlet pipe circulation, so that cleaning machine produces sound change to prompt liquid level overhigh.The utility model solves how to solve the problem that the existing cleaning machine sewage tank gas-liquid impurity classification effect is poor and liquid level prompt is not intuitive and difficult to consider.

Description

Technical Field

[0001] This utility model relates to the field of cleaning technology, and more specifically, to a sewage tank structure and a cleaning machine. Background Technology

[0002] With the widespread use of cleaning equipment, cleaning machines are widely used in both home and commercial settings due to their efficient and convenient cleaning capabilities. The wastewater tank, as a core component of the cleaning machine, primarily functions to collect wastewater and debris (such as dust and hair) generated during the cleaning process, while also ensuring gas-liquid separation, liquid level monitoring, and leak-proof sealing. Current technologies have the following shortcomings in the structural design of wastewater tanks: wastewater, debris, and gas often mix before entering the tank; liquid and debris can easily enter the air outlet pipe or subsequent air paths with the airflow, leading to equipment blockage or damage; some wastewater tanks rely on electronic sensors to monitor the liquid level, resulting in complex structures, high costs, and susceptibility to corrosion and failure due to wastewater; others use mechanical float structures, but these are mostly only used to prevent backflow of wastewater and cannot provide visual signals (such as sound) to indicate that the liquid level is too high, easily leading to wastewater overflow. Utility Model Content

[0003] The problem this invention addresses is how to solve the issues of poor gas-liquid debris classification in the wastewater tank of existing cleaning machines and the lack of intuitive liquid level indication.

[0004] To address the aforementioned problems, this utility model provides a wastewater tank structure, which is installed in a cleaning machine. The wastewater tank structure includes: a tank body, a cover, and a liquid level indicator device. The tank body is equipped with an air inlet pipe and an air outlet pipe. The cover is located at the top of the tank body. The bottom of the cover has a covering portion that is fitted onto the air inlet pipe for classifying the liquid, impurities, and gas drawn into the tank. The movable part of the liquid level indicator device rises to the top as the liquid level in the tank increases, blocking the flow of gas to the air outlet pipe, causing the cleaning machine to produce an audible change to indicate that the liquid level is too high.

[0005] Compared with existing technologies, the technical effects achieved by adopting this solution are as follows: By covering the bottom of the cover and fitting it onto the air inlet pipe structure, the inhaled liquid, impurities, and gas can be effectively classified, reducing the possibility of liquid and impurities entering the air outlet pipe or subsequent air path with the airflow, thus reducing the risk of equipment blockage or damage; the liquid level indicator uses a moving part to block gas flow as the liquid level rises, and uses the change in the sound of the cleaning machine to indicate that the liquid level is too high, eliminating the need for complex electronic sensors, resulting in a simple structure, low cost, and intuitive and reliable indication, while preventing sewage overflow; the overall structural design balances functional practicality with structural simplicity, facilitating production and assembly, and improving the user experience of the cleaning machine.

[0006] Furthermore, the housing is integrally formed with the air intake pipe and the air exhaust pipe.

[0007] Compared with existing technologies, the technical effects achieved by adopting this technical solution are as follows: it eliminates the connection gaps between the tank body and the air inlet and outlet pipes, significantly improves the sealing performance of the three connections, prevents sewage or gas from leaking from the connection points, and enhances the overall sealing reliability of the sewage tank; the one-piece molded structure eliminates the need for additional assembly processes, simplifies the production process, reduces assembly errors, and at the same time improves the structural strength of the air inlet and outlet pipes and the tank body, reducing the risk of component loosening or breakage due to long-term use or vibration.

[0008] Furthermore, the cover includes: a connecting part, which is connected to a liquid level indicator device, and an exhaust pipe connected to the liquid level indicator device. Gas passes through the liquid level indicator device, enters the connecting part, and is finally discharged from the exhaust pipe.

[0009] Compared with existing technologies, the technical effects achieved by adopting this technical solution are as follows: gas enters the liquid level indicator device, passes through the connector, and finally enters the gas outlet pipe, forming a clear and fixed gas flow channel. This makes the gas flow path from the liquid level indicator device to the gas outlet pipe smoother and more stable, avoiding the airflow turbulence problem caused by the chaotic gas flow path in existing technologies. It also reduces the risk of liquid or impurities being carried into the gas outlet pipe by the airflow, further optimizing the gas-liquid classification effect.

[0010] Furthermore, the liquid level indicator includes: a base, which is fixedly connected to a connecting part, and the base is provided with a connecting pipe, which together with the connecting part constitute part of the gas flow path.

[0011] Compared with existing technologies, the technical effects achieved by adopting this technical solution are as follows: The fixed connection between the base and the connecting part provides a stable installation foundation for the liquid level indicator device, avoiding the gas flow path deviation or leakage problems caused by loose component connections in existing technologies, and ensuring the stability of the gas flow path; The connecting pipe on the base and the connecting part clearly constitute part of the gas flow path, so that after the gas is classified from the inlet pipe, it must pass through the connecting pipe to enter the connecting part and finally be discharged, further defining the only gas flow channel, effectively avoiding gas bypass or diversion, ensuring that the blocking effect of the liquid level indicator device on gas flow can be accurately effective, and improving the reliability of the high liquid level indicator.

[0012] Furthermore, the liquid level indicator also includes a float, which is a movable part. The float rises with the liquid level to the opening of the connecting pipe and blocks the connecting pipe to block the gas flow and cause the cleaning machine to produce a sound change, which is used to indicate that the liquid level in the tank is too high.

[0013] Compared with existing technologies, the technical effects achieved by adopting this solution are as follows: The float, as a purely mechanical moving part, rises and falls with the liquid level solely through buoyancy, eliminating the need for complex components such as electronic sensors and circuits. This avoids the failure of electronic components due to sewage corrosion and humid environments, as seen in existing technologies. It also reduces structural complexity and production and maintenance costs, improving the long-term reliability of the liquid level indicator. The float rises with the liquid level to the opening of the connecting pipe and directly blocks it, creating a "point-to-point" blockage of the gas flow path. Since the connecting pipe is the key channel for gas flow to the outlet pipe, this direct blockage method completely cuts off gas flow, avoiding the delays or failures in indication caused by misalignment or gas bypass in existing technologies, ensuring the effectiveness of the gas path blockage.

[0014] Furthermore, the liquid level indicator also includes: a slide rail, which is located at the bottom of the base and extends vertically, and a float is located on the slide rail and can move up and down along the slide rail to limit the movement trajectory of the float.

[0015] Compared with existing technologies, the technical effects achieved by adopting this solution are as follows: The slide rail extends vertically and restricts the movement trajectory of the float, avoiding problems such as displacement and tilting of the float due to water flow impact, debris interference, or installation errors in existing technologies. This ensures that the float always rises and falls along the preset vertical path, improving the stability of the float's movement. Guided by the slide rail, the float can accurately align with the connecting pipe on the base. When the liquid level rises to the preset height, the float can accurately block the opening of the connecting pipe, avoiding blockage failure or premature blockage caused by float displacement, and significantly improving the accuracy and reliability of the high liquid level indication.

[0016] Furthermore, the air outlet of the air inlet pipe is located on the side of the air inlet pipe. The liquid and impurities drawn into the chamber flow to the bottom of the chamber due to gravity, while the gas is located above the liquid and impurities, making it easier for the gas to be discharged through the air outlet pipe.

[0017] Compared with existing technologies, the technical effects achieved by adopting this solution are as follows: the air outlet of the inlet pipe is located on the side, so that when the inhaled liquid, impurities and gas enter the chamber, the liquid and impurities naturally settle to the bottom of the chamber due to gravity, while the gas, due to its lower density, will accumulate above the liquid and impurities, forming a stratified state. This greatly enhances the natural separation efficiency of gas and liquid impurities and solves the problem in existing technologies where the unreasonable position of the air inlet makes it easy for liquid and impurities to be carried into the air outlet pipe by the airflow. The gas is located above the liquid and impurities, which allows it to flow more smoothly to the liquid level indicator and the air outlet pipe, reducing the obstruction of the gas flow path by liquid or impurities, improving exhaust efficiency, and reducing the risk of the air outlet pipe being blocked by liquid and impurities.

[0018] Furthermore, the cover and the box are detachably fixed by a snap-fit ​​structure, which facilitates the removal and installation of the cover.

[0019] Compared with existing technologies, the technical effects achieved by adopting this technical solution are as follows: the snap-fit ​​structure enables tool-free quick assembly and disassembly of the cover and the tank. Users can complete the installation or disassembly by snapping or flipping the snaps, which greatly simplifies the operation process of cleaning and maintaining the sewage tank and improves the ease of use.

[0020] Furthermore, a sealing ring is provided between the lid and the box body for sealing between the two.

[0021] Compared with existing technologies, the technical effects achieved by adopting this technical solution are as follows: the sealing ring can tightly fill the gap between the cover and the box, effectively blocking the leakage path of sewage and gas from the connection between the two, avoiding sewage overflow caused by vibration or tilting during the operation or transportation of the cleaning machine, and preventing pollution of the cleaning environment or damage to the internal components of the equipment.

[0022] To solve the above problems, this utility model provides a cleaning machine, including the sewage tank structure provided by any of the above technical solutions.

[0023] Compared with existing technologies, the technical effects achieved by adopting this technical solution are as follows: the integrated molding design of the sewage tank and the compact gas flow path make the internal layout of the cleaning machine more reasonable, which helps to reduce the overall size of the machine and enhance product competitiveness.

[0024] In summary, the above-mentioned technical solutions of this application can have one or more of the following advantages or beneficial effects: i) By using the cover to cover the air inlet pipe and the air outlet on the side of the air inlet pipe, gravity and path guidance are used to achieve natural separation of liquid, impurities and gas, reducing the blockage or erosion of the air path by liquid and impurities, and improving the media treatment capacity of the sewage tank; ii) The liquid level indicator device uses a float to rise and fall along the slide rail and block the connecting pipe, and uses the sound change caused by the blockage of the gas passage to indicate that the liquid level is too high. It does not require complex electronic components, has a simple structure and provides accurate indication, and avoids sewage overflow; iii) The cover and the tank are quickly disassembled and assembled through a snap-fit ​​structure, and the sealing ring enhances the connection sealing, taking into account both the convenience of operation and the reliability of leak prevention, and reducing the difficulty of cleaning and maintenance for users. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of a sewage tank in one embodiment of the present utility model; Figure 2 This is a partial structural diagram of the sewage tank structure in an embodiment of the present utility model. Figure 1 ; Figure 3 This is a partial structural diagram of the sewage tank structure in an embodiment of the present utility model. Figure 2 ; Figure 4This is a schematic diagram of the liquid level indicator device in an embodiment of the present invention. Figure 5 This is a schematic diagram of the structure of the cover in an embodiment of the present utility model; Figure 6 This is a schematic diagram of the structure of the box in an embodiment of this utility model.

[0026] Explanation of reference numerals in the attached figures: 1-Sewage tank structure; 11-Tank body; 111-Air inlet pipe; 1111-Air outlet end; 112-Air outlet pipe; 1121-Air inlet end; 12-Cover body; 121-Covering part; 122-Connecting part; 13-Liquid level indicator device; 131-Base; 1311-Connecting pipe; 132-Float body; 133-Slide rail; 134-Air outlet pipe connection port; 14-Snap-fit ​​structure. Detailed Implementation

[0027] The purpose of this utility model is to provide a sewage tank structure and a cleaning machine to achieve the effect of effectively classifying gaseous impurities and providing intuitive prompts when the liquid level is too high.

[0028] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0029] See Figures 1-6 This utility model provides a wastewater tank structure 1, which is installed in a cleaning machine. The wastewater tank structure 1 includes: a tank body 11, a cover 12, and a liquid level indicator 13. The tank body 11 is equipped with an air inlet pipe 111 and an air outlet pipe 112. The cover 12 is located at the top of the tank body 11. The bottom of the cover 12 has a covering part 121, which is fitted onto the air inlet pipe 111 for classifying the liquid, impurities, and gas drawn into the tank body 11. The movable part of the liquid level indicator 13 rises to the top as the liquid level in the tank body 11 increases, blocking the flow of gas to the air outlet pipe 112, causing the cleaning machine to produce an audible change to indicate that the liquid level is too high. The air outlet 1111 of the air inlet pipe 111 is located on the side of the air inlet pipe 111. The liquid and impurities drawn into the tank body 11 flow towards the bottom of the tank body 11 due to gravity, while the gas is located above the liquid and impurities, facilitating the gas discharge through the air outlet pipe 112. The housing 11 is integrally formed with the air inlet pipe 111 and the air outlet pipe 112.

[0030] Specifically, see Figure 2 and Figure 6As shown, the housing 11 is a hollow cavity with an open top, used to store sewage and impurities. An air inlet pipe 111 and an air outlet pipe 112 are integrally formed inside the housing 11. The air inlet pipe 111 extends vertically along the inner wall of the housing 11, with the outlet end 1111 located on the side of the air inlet pipe 111, away from the bottom of the housing 11. The upper end of the air inlet pipe 111 extends to the opening of the housing 11, connecting to the suction pipe of the cleaning machine, used to draw external sewage, impurities, and gas into the housing 11. The air outlet pipe 112 also extends along the inner wall of the housing 11, with the air inlet end 1121 located at the top of the housing 11, its upper end penetrating the cover 12 and connecting to the exhaust device of the cleaning machine, used to expel gas from the housing 11. The housing 11 and the air intake pipe 111 are integrally molded by injection molding without any seams, which ensures structural strength and prevents gas or sewage from leaking from the connection part 122.

[0031] The cover 12 is a plate-shaped structure adapted to the opening of the box 11, and is fastened to the top of the box 11. It is detachably fixed by the snap-fit ​​structure 14. The cover part 121 is an annular protrusion at the bottom of the cover 12. The inner diameter of the cover part 121 is larger than the outer diameter of the air inlet pipe 111, and it is fitted onto the outer side of the upper end of the air inlet pipe 111. A gap is left between the lower edge of the cover part 121 and the air inlet pipe 111 to form an annular flow channel. When sewage, impurities and gas are sprayed out from the air outlet 1111 of the air inlet pipe 111, the liquid and impurities slide down the inner wall of the cover part 121 due to gravity and flow to the bottom of the box 11 through the gap, while the gas begins to accumulate inside the cover part 121. After the gas inside the cover part 121 is full, it overflows from the annular space between the cover part 121 and the air inlet pipe 111, achieving preliminary classification.

[0032] The liquid level indicator 13 is installed at the bottom of the cover 12 (located on one side of the cover 121) to monitor the liquid level in the tank 11 and indicate the high level.

[0033] Preferably, the cover portion 121 and the cover body 12 are integrally formed.

[0034] Preferably, the air inlet end 1121 of the air outlet pipe 112 is higher than the air outlet end 1111 of the air inlet pipe 111.

[0035] See Figure 3 and Figure 5 The cover 12 includes a connecting part 122, which is connected to the liquid level indicator 13, and an exhaust pipe 112 connected to the liquid level indicator 13. Gas passes through the liquid level indicator 13, enters the connecting part 122, and is finally discharged from the exhaust pipe 112.

[0036] Specifically, the connecting part 122 is a tubular structure inside the cover 12. The connecting part 122 is connected to the base 131 of the liquid level indicator device 13. The base 131 is provided with an air outlet port 134. The air outlet port 134 is connected to the air inlet 1121 of the air outlet pipe 112, forming a dedicated path for gas to flow from the liquid level indicator device 13 to the air outlet pipe 112.

[0037] Preferably, the connecting part 122 is integrally formed with the cover 12.

[0038] See Figures 2-4 The liquid level indicator device 13 includes: a base 131, which is fixedly connected to a connecting part 122. The base 131 is provided with a connecting pipe 1311, which and the connecting part 122 constitute part of the gas flow path.

[0039] Specifically, the base 131 is a connecting structure that is fixedly connected to the connecting part 122 by screws. The connecting pipe 1311 is inserted into the connecting part 122, so that the interior of the base 131 is connected to the connecting part 122, which is used for gas to flow into the connecting part 122, forming a key node in the gas flow path.

[0040] See Figures 2-4 The liquid level indicator 13 also includes a float 132, which is a movable part. The float 132 rises with the liquid level to the opening of the connecting pipe 1311 and blocks the connecting pipe 1311 to block the gas flow and cause the cleaning machine to produce a sound change, which is used to indicate that the liquid level in the box 11 is too high.

[0041] Specifically, the float 132 is made of hollow plastic and is positioned at the bottom of the base 131 as a "moving part". When the liquid level in the tank 11 approaches the bottom of the cover 12, the float 132 rises to the bottom of the base 131, completely blocking the connecting pipe 1311. After the gas flow is blocked, the exhaust device of the cleaning machine experiences a sudden increase in internal pressure due to the obstructed airflow, resulting in a noticeable change in the operating sound, indicating to the user that the sewage tank is about to be full and needs to be emptied in time.

[0042] Preferably, the density of the float 132 is less than the density of the sewage.

[0043] See Figures 2-4 The liquid level indicator device 13 also includes: a slide rail 133, which is disposed at the bottom of the base 131 and extends in a vertical direction; a float 132 is disposed on the slide rail 133 and can be raised and lowered along the slide rail 133 to limit the movement trajectory of the float 132.

[0044] Specifically, the slide rail 133 consists of two parallel strip-shaped protrusions that extend vertically along the base 131. The distance between the two slide rails 133 is slightly larger than the diameter of the float 132. The float 132 is confined between the slide rails 133 and can only move up and down vertically to avoid displacement caused by water flow impact or impurities.

[0045] Preferably, the slide rail 133 is integrally formed with the inner wall of the base 131.

[0046] See Figure 1 , Figure 5 and Figure 6 The cover 12 and the box 11 are detachably fixed by a snap-fit ​​structure 14, which facilitates the disassembly and installation of the cover 12.

[0047] Specifically, the buckle structure 14 includes two elastic buckles set on the edge of the cover 12 and two corresponding slots set at the opening of the box 11. The buckle ends are provided with barbs. When fastened, the barbs are engaged in the slots to achieve fixation. When disassembling, pressing the elastic end of the buckle will disengage it from the slot. No tools are required for operation, which makes it convenient for users to open the cover 12 to clean the box 11.

[0048] See Figure 5 and Figure 6 A sealing ring is provided between the cover 12 and the box 11 for sealing the box 11 and the cover 12.

[0049] Specifically, the sealing ring is an annular silicone ring, which is embedded in the mating surface of the cover 12 and the box 11 (in the annular groove on the edge of the cover 12). When the cover 12 is fastened, the sealing ring is compressed, filling the tiny gap between the cover 12 and the box 11, and preventing sewage from leaking from the connection part 122 between the cover 12 and the box 11.

[0050] This utility model provides a cleaning machine, including the sewage tank structure 1 provided by any of the above technical solutions.

[0051] Specifically, the wastewater tank structure 1 is applied to the cleaning machine.

[0052] The operating principle of sewage tank structure 1 is as follows: The first type is the gas flow path during normal operation. When the cleaning machine is running, sewage, impurities, and gas enter the housing 11 through the outlet 1111 of the inlet pipe 111. The specific flow process is as follows: Liquid (sewage) and impurities: Due to gravity, they slide down the inner wall of the cover 121, flow through the gap between the lower end of the cover 121 and the air inlet pipe 111 to the bottom of the box 11, and settle inside the box 11. Gas flows upward from the annular space between the cover 121 and the air inlet pipe 111, enters the gas area at the top of the box 11, then passes through the liquid level indicator device 13 via the connecting pipe 1311 of the base 131, flows into the connection part 122 of the cover 12, and is finally discharged to the outside of the cleaning machine through the air outlet pipe 112 (extracted by the exhaust device).

[0053] The second method is a high-level warning procedure. When the liquid level in tank 11 gradually rises (due to the accumulation of wastewater and impurities) and reaches the preset height: Due to buoyancy, the float 132 rises synchronously with the liquid level and moves vertically upward along the slide rail 133. When the liquid level approaches the bottom of the cover 12 (over-high state), the float 132 rises to the bottom of the base 131, completely blocking the connecting pipe 1311 and cutting off the flow path of "gas in the upper part of the box 11 - base 131 - connecting part 122 - air outlet pipe 112". After the gas flow is blocked, the exhaust device (fan) of the cleaning machine experiences a sudden increase in internal pressure due to the obstructed airflow, resulting in a significant change in the working sound, indicating to the user that the sewage tank is about to be full and needs to be cleaned in time.

[0054] While the present invention has been disclosed above, it is not limited thereto. Any person skilled in the art can make various modifications and alterations without departing from the spirit and scope of the present invention; therefore, the scope of protection of the present invention should be determined by the scope defined in the claims.

Claims

1. A sewage tank structure, characterized in that, The wastewater tank structure is installed in the cleaning machine, and the wastewater tank structure includes: The housing (11) is provided with an air inlet pipe (111) and an air outlet pipe (112). A cover (12) is provided on the top of the box (11); the bottom of the cover (12) is provided with a covering part (121), which is sleeved on the air inlet pipe (111) and is used to classify the liquid, impurities and gas inhaled into the box (11); The liquid level indicator (13) has a movable part that rises to the top of the tank (11) as the liquid level rises, blocking the flow of gas to the air outlet (112) and causing the cleaning machine to produce a sound change to indicate that the liquid level is too high.

2. The sewage tank structure according to claim 1, characterized in that, The housing (11) is integrally formed with the air inlet pipe (111) and the air outlet pipe (112).

3. The sewage tank structure according to claim 1, characterized in that, The cover (12) includes: The connecting part (122) is connected to the liquid level indicator (13), and the vent pipe (112) is connected to the liquid level indicator (13). Gas passes through the liquid level indicator (13), enters the connecting part (122), and is finally discharged from the vent pipe (112).

4. The sewage tank structure according to claim 3, characterized in that, The liquid level indicator (13) includes: The substrate (131) is fixedly connected to the connecting part (122). The substrate (131) is provided with a connecting pipe (1311). The connecting pipe (1311) and the connecting part (122) constitute part of the gas flow path.

5. The sewage tank structure according to claim 4, characterized in that, The liquid level indicator (13) further includes: The float (132) is the moving part. The float (132) rises with the liquid level to the opening of the connecting pipe (1311) and blocks the connecting pipe (1311) to block the gas flow and make the cleaning machine produce a sound change to indicate that the liquid level in the box (11) is too high.

6. The sewage tank structure according to claim 5, characterized in that, The liquid level indicator (13) further includes: The slide rail (133) is located at the bottom of the base (131) and extends vertically. The float (132) is located on the slide rail (133) and can be raised and lowered along the slide rail (133) to limit the movement trajectory of the float (132).

7. The sewage tank structure according to claim 1, characterized in that, The air outlet (1111) of the air inlet pipe (111) is located on the side of the air inlet pipe (111). The liquid and impurities drawn into the box (11) flow to the bottom of the box (11) due to gravity, and the gas is located above the liquid and impurities, so that the gas can be discharged through the air outlet pipe (112).

8. The sewage tank structure according to claim 1, characterized in that, The cover (12) and the box (11) are detachably fixed by a snap-fit ​​structure (14), which facilitates the disassembly and installation of the cover (12).

9. The sewage tank structure according to claim 1, characterized in that, A sealing ring is provided between the cover (12) and the box (11) for sealing between the box (11) and the cover (12).

10. A cleaning machine, characterized in that, Includes the sewage tank structure as described in any one of claims 1 to 9.

Images