Sewage tank structure for cleaning equipment

Abstract

The utility model relates to the field of cleaning equipment and disclose a kind of sewage tank structure for cleaning equipment, including box and separation support, the mounting seat bottom of separation support is connected with partition, partition separates the inner cavity of box into first chamber and second chamber, inlet pipeline is provided in first chamber, the both sides of inlet pipeline are provided with guide vane, and airflow passage is formed between guide vane and the inner wall of box and is communicated with first chamber, and exhaust passage is formed between partition and the inner wall of box and is communicated with second chamber;Dirty enters first chamber through inlet pipeline, water baffle carries out primary separation deceleration to the vapor-liquid that flows into first chamber, baffle carries out secondary separation deceleration to the vapor-liquid in airflow passage respectively, and anti-overflow structure carries out secondary separation deceleration to the vapor-liquid in exhaust passage, and finally the airflow in two channels meets at air outlet, realizes three-stage separation deceleration, further reduces liquid overflow risk, and strengthens vapor-liquid separation effect.

Description

Technical Field

[0001] This utility model relates to the field of cleaning equipment, specifically to a wastewater tank structure for cleaning equipment. Background Technology

[0002] When a floor scrubber is operating, it needs to collect wastewater containing solid dirt through a wastewater tank. To ensure the suction power and service life of the equipment, the wastewater tank needs to simultaneously achieve solid-liquid separation and air-water separation. In existing technologies, solid-liquid separation often uses an internal grid or filter structure to filter solid impurities such as mud and hair from the wastewater through physical interception. Air-water separation relies on the principle of fixed baffles inside the tank to guide the flow or gravity sedimentation to initially separate the wastewater and air.

[0003] Floor scrubber wastewater tanks require solid-liquid and air-water separation to ensure equipment stability. However, existing technologies often employ multi-component structures to achieve separation, resulting in numerous internal parts, complex assembly processes, and the need for disassembly and cleaning during maintenance, making operation difficult. Furthermore, air-water separation relies solely on simple flow guidance or gravity, leading to low efficiency. Incompletely separated air bubbles can easily overflow the tank with the flowing wastewater, and air bubbles entering the power source can cause cavitation, shortening pump life. Additionally, air bubbles occupy internal space, significantly reducing wastewater storage capacity and impacting user experience. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a wastewater tank structure for cleaning equipment. The inner cavity of the tank is divided into a first chamber and a second chamber by a separation bracket. The vapor and liquid in the two chambers can be separated by multi-stage deceleration. The structure is not only simple and easy to maintain and clean, but also improves the vapor-liquid separation effect.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a wastewater tank structure for cleaning equipment, including a tank body and a separation bracket, wherein the separation bracket includes a mounting base detachably mounted on the tank body, and a partition plate is connected to the bottom of the mounting base. The partition plate divides the inner cavity of the tank body into a first chamber and a second chamber, which are connected to each other through a drain hole. An inlet pipe is provided in the first chamber, and guide plates are provided on both sides of the inlet pipe. An airflow channel communicating with the first chamber is formed between the guide plates and the inner wall of the box. A baffle is provided in the airflow channel. An exhaust channel communicating with the second chamber is formed between the partition plate and the inner wall of the box. An anti-overflow structure is provided in the exhaust channel. A filter port is provided on the mounting base. The airflow channel and the exhaust channel converge at the air outlet. The air outlet is connected to the filter port. The two airflows in the first chamber and the second chamber converge at the air outlet to form a vortex and convection for airflow deceleration.

[0006] Optionally, the baffle plate is parallel to or intersects the guide plate, and the distance between the bottom surface of the guide plate and the partition plate is X, the distance between the bottom surface of the baffle plate and the partition plate is Y, and there is a positional difference between X and Y.

[0007] Optionally, the cross-sectional area of ​​the exhaust channel is greater than or equal to the cross-sectional area of ​​the drain hole.

[0008] Optionally, the mounting base, the partition plate, the guide plate, and the baffle plate are all provided with sealing elements at their sides to block airflow. The sealing elements are fitted with the inner wall of the housing in a transition fit or an interference fit.

[0009] Optionally, the drain hole is located on the bottom surface of the first chamber, and the bottom surface of the first chamber is inclined to the drain hole.

[0010] Optionally, a box cover is fixedly connected to the top of the mounting base, and a filter assembly communicating with the air outlet is installed inside the filter port, with the filter assembly penetrating through the box cover.

[0011] Optionally, the air outlet and the filter outlet are connected by an air outlet channel, and the bottom surface of the air outlet channel is parallel to or intersects with the bottom surface of the filter assembly.

[0012] Optionally, the mounting base is embedded in the housing, and the top of the housing cover is provided with a handle for removing the entire separation bracket from the housing.

[0013] Optionally, an electrode for detecting liquid level is disposed above the second chamber, and the end of the electrode extends into the interior of the second chamber.

[0014] Optionally, a deodorizing component is connected to the bottom of the partition plate, and the deodorizing component is located in the second chamber.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: (1) In this utility model, dirt enters the first chamber through the inlet pipe, and the liquid waste in it enters the second chamber through the drain hole, while the solid and liquid waste remains in the first chamber. During this process, the baffle plate performs a first-stage separation and deceleration of the vapor and liquid flowing into the first chamber, the baffle plate performs a second-stage separation and deceleration of the vapor and liquid in the airflow channel, and the anti-overflow structure performs a second-stage separation and deceleration of the vapor and liquid in the exhaust channel. Finally, the airflow in the two channels converges at the outlet to achieve a third-stage separation and deceleration, further reducing the risk of liquid overflow and enhancing the vapor-liquid separation effect. (2) In this utility model, when the gas in the second chamber is drawn out along the exhaust channel, a negative pressure can be formed at the drain hole position of the first chamber, making it easier for the liquid in the first chamber to enter the second chamber; and in order to ensure that a negative pressure is formed at the drain hole position, the cross-sectional area of ​​the exhaust channel and the drain hole are in a specified multiple relationship. (3) In this utility model, solid-liquid waste separation can be achieved through the drainage hole, and the bottom of the first chamber is inclined to the drainage hole, which can promote the liquid waste to quickly enter the second chamber under the action of gravity, thereby improving the solid-liquid separation effect; (4) In this utility model, the functions of gas-liquid separation, solid-liquid separation, gas filtration, water full alarm and sterilization and deodorization are all integrated on the separation bracket. Users can clean solid waste and liquid waste separately by pulling out the entire separation bracket by the handle, making it simple to operate and easy to clean. Attached Figure Description

[0016] Figure 1 This is an exploded structural diagram of the wastewater tank structure for the cleaning equipment in this embodiment of the present invention; Figure 2 This is a schematic diagram of the structure of the separation bracket in an embodiment of this utility model; Figure 3 This is a schematic diagram of the internal structure of the sewage tank for the cleaning equipment in this embodiment of the utility model, laid flat. Figure 4 This is a schematic diagram of the internal structure of the wastewater tank for the cleaning equipment in this embodiment of the utility model; Figure 5 This is a schematic diagram showing the positional structure of the first chamber and the second chamber in an embodiment of this utility model; Figure 6 This is a schematic diagram of the position and structure of the airflow channel and the baffle in an embodiment of this utility model; Figure 7 This is a schematic diagram of the anti-overflow structure in an embodiment of this utility model; The components are as follows: 1. Housing; 2. Separation bracket; 201. Mounting base; 202. Divider plate; 203. Guide plate; 204. Baffle plate; 205. Air outlet; 206. Filter port; 207. Drain hole; 3. Housing cover; 301. Handle; 302. Release button; 4. Filter assembly; 5. Electrode; 6. Deodorization assembly; 7. First chamber; 8. Second chamber; 9. Inlet pipe; 10. Airflow channel; 11. Exhaust channel; 12. Overflow prevention structure; 13. Sealing element; 14. Air outlet channel. Detailed Implementation

[0017] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. These drawings are simplified schematic diagrams, which are only used to illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0018] Example 1, as Figure 1 As shown, a wastewater tank structure for cleaning equipment includes a tank body 1, a separation bracket 2, and a tank cover 3. The tank cover 3 is fixedly installed on the top of the separation bracket 2, and the separation bracket 2 is fitted into the tank body 1. The two work together to achieve gas-water separation and solid-liquid separation.

[0019] As described above, a locking structure is provided between the lid 3 and the body 1. A release button 302 corresponding to the locking structure is provided on the side of the lid 3. The locking structure is used to fix the lid 3 and the body 1 together, and the release button 302 is used to open the locking structure so that the separation bracket 2 and the lid 3 can be separated from the body 1.

[0020] Both the locking structure and the release button 302 are mature existing technologies used to achieve quick assembly and disassembly between the separation bracket 2 and the housing 1. Similarly, the sewage tank and the body of the cleaning equipment are also equipped with corresponding locks and buttons to achieve quick assembly and disassembly between the sewage tank and the body of the cleaning equipment. Therefore, their structure will not be described in detail here.

[0021] like Figures 2-6 As shown, the separation bracket 2 includes a mounting base 201. The bottom of the mounting base 201 is fixedly connected to a partition plate 202, a guide plate 203, and a baffle plate 204. After the mounting base 201 is fitted into the housing 1, the partition plate 202 divides the inner cavity of the housing 1 into a first chamber 7 and a second chamber 8. An inlet pipe 9 is fixedly installed in the first chamber 7.

[0022] The inlet pipe 9 is connected to the suction pipe of the cleaning equipment. The first chamber 7 and the second chamber 8 are distributed vertically and are independent of each other. The former is used to store solid waste and the latter is used to store liquid waste. The two are connected by a drain hole 207, which is located on the bottom surface of the first chamber 7.

[0023] External dirt enters the first chamber 7 through the inlet pipe 9. Under the action of gravity, liquid waste passes through the drain hole 207 into the second chamber 8, while solid and liquid waste remain in the first chamber 7, thus achieving solid-liquid separation of dirt.

[0024] The guide plates 203 are mirror-distributed on both sides of the inlet pipe 9. The inner side of the guide plates 203 and the inner wall of the box 1 form a waste separation and deceleration area for primary separation and deceleration of gas and liquid. The outer side of the guide plates 203 and the inner wall of the box 1 form an airflow channel 10. The airflow channel 10 is connected to the first chamber 7. The baffle plate 204 is located between the partition plate 202 and the guide plates 203, and is also located in the airflow channel 10.

[0025] A partition plate 202, facing away from the guide plate 203, forms an exhaust channel 11 between itself and the inner wall of the housing 1. The exhaust channel 11 has an overflow prevention structure 12 and communicates with the second chamber 8. The airflow channel 10 and the exhaust channel 11 converge at the outlet 205, which is connected to the filter port 206 on the mounting base 201. The two airflows in the first chamber 7 and the second chamber 8 converge at the outlet 205 along the airflow channel 10 and the exhaust channel 11, respectively, forming a vortex and convection, achieving airflow deceleration and improving the steam-water separation effect.

[0026] The baffle 204 is parallel to or intersects the guide plate 203, and the distance between the bottom surface of the guide plate 203 and the partition plate 202 is X, and the distance between the bottom surface of the baffle 204 and the partition plate 202 is Y, with a positional difference between X and Y. Specifically, the air outlet 205 is located on the upper part of the partition plate 202 and opposite to the guide plate 203. The lowest point of the baffle 204 is higher than the lowest point of the guide plate 203, so that the airflow can be guided away from the air outlet 205 by the guide plate 203 first, and then blocked and slowed down by the baffle 204, realizing two-stage separation and deceleration of gas and liquid, guiding the airflow in the first chamber 7 to flow along the airflow channel 10 to the air outlet 205. When the power source (vacuum motor) of the cleaning equipment is started, the airflow in the second chamber 8 flows along the exhaust channel 11 to the air outlet 205, and converges with the airflow in the airflow channel 10 at the air outlet 205. After three-stage separation and deceleration, it is filtered and then discharged along the air duct of the cleaning equipment body.

[0027] Among them, the overflow prevention structure 12 adopts a multi-layer waterproof reinforcement distributed in a mirror image on the partition plate 202 (e.g. Figure 7 As shown, this design prevents sewage from flowing out of the second chamber 8 and also blocks the airflow from entering the exhaust channel 11, achieving two-stage separation and deceleration. Waterproof ribs are stacked vertically on the partition plate 202, employing both regular and inverted V-shapes, which are alternately stacked vertically. The space between the two V-shaped structures guides the separated liquid back to the second chamber 8, while the stacked ribs also decelerate the airflow.

[0028] Therefore, the vapor and liquid entering the sewage tank can be discharged after three stages of separation and deceleration. The first stage of separation and deceleration is achieved through the separation and deceleration area of ​​the guide plate 203; the second stage of separation and deceleration is achieved through the baffle plate and the overflow prevention structure 12, wherein the baffle plate is used to perform secondary separation and deceleration of the vapor and liquid flowing through the airflow channel 10, and the overflow prevention structure 12 is used to perform secondary separation and deceleration of the vapor and liquid flowing through the exhaust channel 11; the third stage of separation and deceleration is achieved by the convergence of two airflows.

[0029] Furthermore, the mounting base 201, partition plate 202, guide plate 203, and baffle plate 204 are all provided with sealing elements 13 on their sides. The sealing elements 13 can be made of rubber to block the passage or overflow of airflow, and the sealing elements 13 are transition fit or interference fit with the inner wall of the housing 1. Under the action of the sealing elements 13, the mounting base 201 can be fitted into the housing 1, and can also be quickly pulled out under the action of external force.

[0030] The cover 3 is fixedly connected to the top of the mounting base 201. The filter assembly 4, which communicates with the air outlet 205, is installed in the filter port 206 and penetrates the cover 3. The filter assembly 4 here preferably uses a HEPA filter to filter the air after three separations and deceleration, so as to prevent harmful substances from being emitted into the external environment.

[0031] Furthermore, the air outlet 205 and the filter outlet 206 are connected by an air outlet channel 14, and the bottom surface of the air outlet channel 14 is parallel to or intersects the bottom surface of the filter assembly 4. After the airflow undergoes three-stage separation and deceleration, it passes through the filter assembly 4 along the air outlet channel 14 and finally enters the air duct of the machine body for discharge.

[0032] Working principle: Solid-liquid separation: The bottom of the partition plate 202 is provided with a drain hole 207, that is, the drain hole 207 is located on the bottom surface of the first chamber 7 and the drain hole 207 is connected to the second chamber 8; when external dirt enters the first chamber 7 through the inlet pipe 9, under the action of gravity, liquid waste enters the second chamber 8 through the drain hole 207, while solid waste remains in the first chamber 7, thus completing the solid-liquid separation of dirt.

[0033] Vapor-liquid separation: After the external vapor and liquid enter the first chamber 7, they are first separated and decelerated by the separation and deceleration area inside the guide plate 203, and the airflow is guided to flow away from the outlet 205. Then, the vapor and liquid passing through the airflow channel 10 are separated and decelerated by the baffle plate 204. During this period, the gas is guided to hit the baffle plate 204 multiple times to decelerate, so that water vapor gradually hangs on the wall and condenses. Finally, under the action of gravity, it separates from the gas, thereby realizing vapor-liquid separation.

[0034] Meanwhile, the vapor and liquid flowing into the second chamber 8 through the drain hole 207 flow to the outlet 205 through the exhaust channel 11. During this process, the anti-overflow structure 12 can achieve two-stage separation and deceleration. Finally, the gas in the first chamber 7 and the gas in the second chamber 8 converge at the outlet 205 under the guidance of the corresponding channels, thereby performing three-stage deceleration on the vapor and liquid, further reducing the risk of liquid overflow and enhancing the vapor-liquid separation effect.

[0035] Example 2, as Figure 3 , Figure 5 and Figure 6As shown, the drain hole 207 is located on the bottom surface of the first chamber 7, and the bottom surface of the first chamber 7 is inclined to the drain hole 207.

[0036] For example, the drain hole 207 is located below the area enclosed by the guide plate 203, at the connection point between the end of the partition plate 202 and the inner wall of the box 1. At the same time, the bottom surface of the partition plate 202 forms a certain angle with the inner side wall of the box 1, which can promote the rapid entry of liquid waste into the second chamber 8 under the action of gravity and improve the solid-liquid separation effect.

[0037] At this time, the cross-section of the upper part of the partition plate 202 perpendicular to the axis direction is a Z-shaped structure, while the side view of the partition plate 202 adjacent to the inlet pipe 9 is an L-shaped structure.

[0038] Furthermore, when the gas in the second chamber 8 is drawn out along the exhaust channel 11, a negative pressure can be formed at the drain hole 207 of the first chamber 7, making it easier for the liquid in the first chamber 7 to enter the second chamber 8; and in order to ensure that a negative pressure is formed at the drain hole 207, the cross-sectional area of ​​the exhaust channel 11 and the drain hole 207 are in a specified multiple relationship.

[0039] The cross-sectional area S1 of the exhaust channel 11 and the cross-sectional area S2 of the drain hole 207 satisfy: S1=N×S2; where N is a preset multiple and N≥1; that is, the cross-sectional area of ​​the exhaust channel 11 is greater than or equal to the cross-sectional area of ​​the drain hole 207.

[0040] In Example 3, the wastewater tank structure proposed in this utility model, in addition to having solid-liquid separation, gas-liquid separation and storage functions, also has a full water alarm function, sterilization and deodorization function, and is convenient for users to disassemble and maintain.

[0041] like Figure 3 and Figure 4 As shown, an electrode 5 is installed above the second chamber 8, and the end of the electrode 5 extends into the interior of the second chamber 8. Two electrodes 5 are provided, distributed on both sides of the separation bracket 2, with the ends of the electrodes 5 exposed inside the second chamber 8. They are used to detect the liquid level in the sewage tank, ensuring that when the liquid level inside the second chamber 8 reaches the preset level and the electrodes 5 on both sides are connected, an alarm is triggered to remind the user to clean the sewage tank, regardless of whether the sewage tank is upright, in normal use, or lying flat.

[0042] like Figures 3-5 As shown, the bottom of the partition plate 202 is connected to the deodorization component 6, which is located in the second chamber 8.

[0043] Specifically, the second chamber 8 is equipped with an antibacterial and deodorizing component 6. By adding a suitable microbial control agent to the deodorizing component 6, the component can release active ingredients after contacting liquid waste, killing microorganisms in the water or inhibiting them to a very low level, preventing them from reacting with nutrients and reducing bacterial growth. At the same time, the odor neutralizer in the deodorizing component 6 can react with the odor molecules produced, preventing them from being released from the water and reducing odor production.

[0044] like Figure 1 and Figure 3 As shown, the top of the tank cover 3 is provided with a handle 301 for lifting the tank cover 3 and the separation bracket 2. The handle 301 can be flipped longitudinally at the bottom of the tank cover 3, that is, both ends of the handle 301 are rotatably connected to the tank cover 3. When the sewage tank is installed in the cleaning equipment, the handle 301 is in a flat storage position. When the sewage tank is removed from the machine body, the handle 301 can be stood up, and the tank cover 3 and the separation bracket 2 can be pulled out from the tank body 1 through the handle 301. The handle 301 can remove the separation bracket 2 as a whole from the tank body 1, reducing the user's operating force and making it convenient for the user to disassemble and clean.

[0045] Furthermore, this utility model integrates gas-liquid separation, solid-liquid separation, gas filtration, water full alarm, and sterilization and deodorization functions into the separation bracket 2. Users can pull out the entire separation bracket 2 through the handle 301 to clean solid waste and liquid waste separately, making it simple to operate and easy to clean.

[0046] In summary, this utility model proposes a wastewater tank structure for cleaning equipment, which has solid-liquid separation, vapor-liquid separation, storage functions, water full alarm function, sterilization and deodorization function, and is convenient for users to disassemble and maintain. The inner cavity of the tank body 1 is divided into a first chamber 7 and a second chamber 8 by the partition plate 202 of the separation bracket 2. The vapor and liquid in the two chambers can be separated by multi-stage deceleration. It is not only simple in structure and easy to maintain and clean, but also improves the vapor-liquid separation effect.

[0047] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and 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 this utility model.

[0048] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0049] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0050] Based on the preferred embodiments of this utility model described above, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A wastewater tank structure for cleaning equipment, characterized in that: The device includes a housing and a separation bracket. The separation bracket includes a mounting base that can be detachably installed on the housing. A partition plate is connected to the bottom of the mounting base. The partition plate divides the inner cavity of the housing into a first chamber and a second chamber, which are connected to each other through a drain hole. An inlet pipe is provided in the first chamber, and guide plates are provided on both sides of the inlet pipe. An airflow channel communicating with the first chamber is formed between the guide plates and the inner wall of the box. A baffle is provided in the airflow channel. An exhaust channel communicating with the second chamber is formed between the partition plate and the inner wall of the box. An anti-overflow structure is provided in the exhaust channel. A filter port is provided on the mounting base. The airflow channel and the exhaust channel converge at the air outlet. The air outlet is connected to the filter port. The two airflows in the first chamber and the second chamber converge at the air outlet to form a vortex and convection for airflow deceleration.

2. The wastewater tank structure for cleaning equipment according to claim 1, characterized in that: The baffle is parallel to or intersects the guide plate, and the distance between the bottom surface of the guide plate and the partition plate is X, the distance between the bottom surface of the baffle and the partition plate is Y, and there is a positional difference between X and Y.

3. The wastewater tank structure for cleaning equipment according to claim 1, characterized in that: The cross-sectional area of ​​the exhaust channel is greater than or equal to the cross-sectional area of ​​the drain hole.

4. The wastewater tank structure for cleaning equipment according to claim 1, characterized in that: The mounting base, the partition plate, the guide plate, and the baffle plate are all provided with sealing elements at their sides to block airflow. The sealing elements are fitted with the inner wall of the housing in a transition fit or an interference fit.

5. The wastewater tank structure for cleaning equipment according to claim 1, characterized in that: The drain hole is located on the bottom surface of the first chamber, and the bottom surface of the first chamber is inclined to the drain hole.

6. The wastewater tank structure for cleaning equipment according to claim 1, characterized in that: A box cover is fixedly connected to the top of the mounting base, and a filter assembly communicating with the air outlet is installed inside the filter port, with the filter assembly penetrating through the box cover.

7. The wastewater tank structure for cleaning equipment according to claim 6, characterized in that: The air outlet and the filter outlet are connected by an air outlet channel, and the bottom surface of the air outlet channel is parallel to or intersects with the bottom surface of the filter assembly.

8. The wastewater tank structure for cleaning equipment according to claim 7, characterized in that: The mounting base is embedded in the housing, and the top of the housing cover is provided with a handle for removing the entire separation bracket from the housing.

9. The wastewater tank structure for cleaning equipment according to claim 8, characterized in that: An electrode for detecting liquid level is disposed above the second chamber, and the end of the electrode extends into the interior of the second chamber.

10. The wastewater tank structure for cleaning equipment according to claim 9, characterized in that: The bottom of the partition plate is connected to a deodorizing component, which is located in the second chamber.

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