Efficient self-cleaning type sewage tank
By introducing metal heating elements into the wastewater tank to generate hot steam, and combining this with the flushing components, the problem of sticky stains on the filter screen that cannot be removed is solved, achieving a self-cleaning effect for the wastewater tank and ensuring the continuous effectiveness of the suction function.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU ZHONGLONG ELECTRICAL & MECHANICAL PARTS CO LTD
- Filing Date
- 2025-07-30
- Publication Date
- 2026-07-07
AI Technical Summary
After prolonged use, sticky stains accumulate on the filter screen of the sewage tank, making it impossible to drain them by emptying the container, thus causing the suction function to fail.
A high-efficiency self-cleaning wastewater tank was designed. It uses metal heating elements to generate hot steam to soften the stains, and combines flushing components and backwash nozzles to achieve automatic cleaning of the filter screen.
It effectively reduces the degree of dirt adhesion on the filter screen, ensuring the normal operation of the dirt suction function and the cleanliness of the filter screen.
Smart Images
Figure CN224461639U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of floor scrubbers, and in particular to a high-efficiency self-cleaning wastewater tank. Background Technology
[0002] The wastewater tank is an important component of the floor scrubber, and its main function is to collect, separate, and store dry and wet waste. Its operation involves a blower drawing air from the vent to create negative pressure, which then draws wastewater along with solid waste into the wastewater tank through pipes.
[0003] Regarding the aforementioned technologies, the inventors discovered that after prolonged use, although impurities such as hair, fibers, and particulate matter can be manually poured out of the sewage tank, the sticky dirt layer adhering to the filter screen cannot be discharged by pouring, thus preventing the normal sewage suction function from being completed. Utility Model Content
[0004] To address the aforementioned technical problems, this application provides a high-efficiency self-cleaning sewage tank, which has the advantage of automatically cleaning the filter screen, ensuring the cleanliness of the filter screen, and thus ensuring the normal operation of the sewage suction function.
[0005] To achieve the above objectives, the technical solution of this utility model is as follows:
[0006] A high-efficiency self-cleaning sewage tank includes a tank body and a detachable top cover. The bottom of the tank body is provided with a water inlet pipe that extends into the tank body. The top cover is provided with a partition plate. The bottom of the partition plate is provided with a filter screen. The filter screen is provided with a clearance groove for the water inlet pipe to pass through.
[0007] The top cover is provided with a rinsing device for rinsing the filter screen; a metal heating plate is provided on the bottom wall of the inner chamber, and a metal contact point connected to the metal heating plate is provided on the outer wall of the outer chamber.
[0008] To achieve the above technical solution, a metal connecting base (such as a coupler) that mates with the metal contacts can be installed on the base of the floor scrubber to supply power to the metal contacts. This power supplies the metal heating element to heat the wastewater and clean water, thereby generating hot steam. This steam heats and softens the sticky stains on the filter screen, reducing their adhesion. The water is then rinsed by the rinsing component, ensuring a good rinsing effect. At the same time, the cold water sprayed by the rinsing component causes the stains on the filter screen to quickly fall off due to thermal contraction, further ensuring the self-cleaning effect.
[0009] As a preferred embodiment of this application, the filter screen is gradually inclined downward and then upward along the axis of the avoidance hole.
[0010] The above technical solution is implemented to ensure that the filtered impurities will not fall into the sewage tank when they are removed.
[0011] As a preferred embodiment of this application, a backflush pipe is provided on the upper cover of the partition plate on the side away from the cleaning pipe, and a backflush nozzle is provided on the backflush pipe.
[0012] The above technical solution is used to connect to the corresponding quick-connect female pipe on the floor scrubber body. The water pump in the floor scrubber can pressurize the clean water in the clean water tank and supply it into the backwash pipe. Then, it is sprayed out through the backwash nozzle, so that the water flow is reversed and washes the filter screen in reverse, thereby further ensuring the cleanliness of the wash.
[0013] As a preferred embodiment of this application, the rinsing component includes a clean water pipe disposed above the filter screen, a quick connector being provided at the top of the clean water pipe, and a clean water nozzle being provided at one end of the clean water pipe within the housing.
[0014] To achieve the above technical solution, after the wastewater tank is installed on the floor scrubber, it can be synchronously connected by setting a quick-connect female pipe on the floor scrubber that corresponds to the quick connector. Then, the water pump in the floor scrubber can pressurize the clean water in the clean water tank and supply it into the clean water pipe. The clean water is then sprayed out through the clean water nozzle to rinse the filter screen, thereby achieving the effect of preliminary rinsing.
[0015] In summary, this application includes at least one of the following beneficial technical effects:
[0016] 1. A metal connecting base (such as a coupler) that mates with the metal contacts can be installed on the base of the floor scrubber to supply power to the metal contacts, thereby powering the metal heating element to heat the wastewater and clean water, thus generating hot steam. This heats and softens the sticky stains on the filter screen, reducing their adhesion. Then, the water is rinsed by the rinsing component, thus ensuring the rinsing effect. At the same time, the cold water sprayed by the rinsing component causes the stains on the filter screen to quickly fall off due to the thermal contraction, thereby further ensuring the self-cleaning effect.
[0017] 2. It is designed to connect to the corresponding quick-connect female pipe on the floor scrubber body, so that the water pump in the floor scrubber can pressurize the clean water in the clean water tank and supply it into the backwash pipe, and then spray it out through the backwash nozzle, so that the water flow reverses and washes the filter screen in reverse, thereby further ensuring the cleanliness of the wash. Attached Figure Description
[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0019] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application.
[0020] Figure 2 This is a cross-sectional view of an embodiment of this application.
[0021] Figure 3 This is an exploded view of an embodiment of this application.
[0022] Attached reference numerals: 1. Housing; 2. Top cover; 21. Exhaust port; 22. Clean water pipe; 23. Quick connector; 24. Clean water nozzle; 25. Backflush pipe; 26. Backflush nozzle; 3. Inlet pipe; 4. Divider plate; 5. Filter screen; 6. Metal heating element; 7. Metal contact. Detailed Implementation
[0023] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.
[0024] This application discloses a high-efficiency self-cleaning sewage tank. (Refer to...) Figure 1 The high-efficiency self-cleaning sewage tank includes a tank body 1 and a detachable top cover 2 that is installed on the tank body 1. A water inlet pipe 3 extends into the tank body 1 from its bottom. A partition plate 4 is installed on the top cover 2, and a filter screen 5 is installed at the bottom of the partition plate 4. The filter screen 5 has a clearance groove for the water inlet pipe 3 to pass through. An exhaust port 21 is also provided on the top cover 2. When the top cover 2 is placed on the tank body 1, the partition plate 4 fits snugly against the side wall of the tank body 1, thus enclosing the water inlet pipe 3. The filter screen 5, following the partition plate 4, is then fitted onto the water inlet pipe 3, filling the gap between the water inlet pipe 3, the partition plate 4, and the tank body 1. This allows a negative pressure device to draw sewage, impurities, and air from the water inlet pipe 3. During the descent, the air is filtered by the filter screen 5. Solid impurities are intercepted and adhere to the filter screen 5, while water accumulates in the sewage tank under gravity. Gas is discharged from the exhaust port 21 of the top cover 2, thus achieving the effect of separating solids, liquids, and gases.
[0025] The top cover 2 is equipped with a clean water pipe 22, and a quick connector 23 is provided at the top of the clean water pipe 22. A clean water nozzle 24 is provided at one end of the clean water pipe 22 located in the box body 1. After the wastewater tank is installed on the floor scrubber, it can be synchronously connected by setting a quick connector female on the floor scrubber that corresponds to the quick connector 23. The water pump in the floor scrubber can pressurize the clean water in the clean water tank and supply it into the clean water pipe 22. Then, the clean water is sprayed out through the clean water nozzle 24 to rinse the filter screen 5, thereby achieving the effect of preliminary rinsing. A metal heating element 6 is installed on the bottom wall of the inner chamber 1, and a metal contact 7 connected to the metal heating element 6 is installed on the outer wall of the chamber 1. A metal connecting base (such as a coupler) that cooperates with the metal contact 7 can be installed on the base of the floor scrubber to supply power to the metal contact 7, thereby supplying power to the metal heating element 6 to heat the wastewater and clean water, thereby generating hot steam. This heats and softens the sticky stains on the filter screen 5 to reduce their adhesion. Then, the filter screen is rinsed through the clean water nozzle 24 to ensure the rinsing effect. At the same time, the cold water sprayed from the clean water nozzle 24 causes the stains on the filter screen 5 to shrink and fall off quickly due to the temperature change, thereby further ensuring the self-cleaning effect.
[0026] A backflush pipe 25 is provided on the upper cover 2 on the side of the partition plate 4 away from the cleaning pipe. A backflush nozzle 26 is provided on the backflush pipe 25. The other end of the backflush pipe 25 is also provided with a quick connector 23, just like the cleaning pipe, for connecting with the corresponding quick connector on the floor scrubber body. Thus, the water pump in the floor scrubber can pressurize the clean water in the clean water tank and supply it into the backflush pipe 25, and then spray it out through the backflush nozzle 26, so that the water flow reverses and washes the filter screen 5 in the opposite direction, thereby further ensuring the cleanliness of the washing.
[0027] Meanwhile, the filter screen 5 is gradually tilted downwards and outwards along the axis of the clearance hole to ensure that the filtered impurities will not fall into the sewage tank when they are taken out.
[0028] The implementation principle of a high-efficiency self-cleaning sewage tank according to an embodiment of this application is as follows: After the top cover 2 is placed on the tank body 1, the partition plate 4 fits against the side wall of the tank body 1 to wrap the inlet pipe 3. At this time, the filter screen 5 is fitted onto the inlet pipe 3 along with the partition plate 4. The filter screen 5 fills the gap between the inlet pipe 3, the partition plate 4, and the tank body 1, so that the negative pressure device draws sewage, impurities, and air from the inlet pipe 3. During the fall, after being blocked and filtered by the filter screen 5, solid impurities are intercepted and attached to the filter screen 5. Water accumulates in the sewage tank under the action of gravity, and gas is discharged from the exhaust port 21 of the top cover 2, thereby achieving the effect of separating solid, liquid, and gas. That is, after the sewage tank is installed on the floor scrubber, it can be synchronously connected by setting a quick-connect female pipe corresponding to the quick connector 23 on the floor scrubber. Then, the water pump in the floor scrubber can pressurize the clean water in the clean water tank and supply it into the clean water pipe 22, and then spray it out through the clean water nozzle 24 to rinse the filter screen 5, thereby achieving the effect of preliminary rinsing. A metal heating element 6 is installed on the inner bottom wall of the casing 1, and a metal contact 7 connected to the metal heating element 6 is installed on the outer wall of the casing 1. A metal connecting base (such as a coupler) that mates with the metal contact 7 can be installed on the base of the floor scrubber to supply power to the metal contact 7, thereby heating the wastewater to the metal heating element 6, generating hot steam. This steam softens the sticky dirt on the filter screen 5, reducing its adhesion. The dirt is then rinsed through the clean water nozzle 24, ensuring a thorough rinsing. Simultaneously, the cold water sprayed from the clean water nozzle 24 causes the dirt on the filter screen 5 to quickly detach due to thermal contraction, further ensuring a self-cleaning effect. The other end of the backwash pipe 25, like the cleaning pipe, is equipped with a quick connector 23 for connecting to a corresponding quick-connect female on the floor scrubber body. This allows the water pump in the floor scrubber to pressurize the clean water in the clean water tank and supply it into the backwash pipe 25, which is then sprayed out through the backwash nozzle 26. This reverses the water flow, rinsing the filter screen 5 in the opposite direction, further ensuring the cleanliness of the rinse.
[0029] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A high-efficiency self-cleaning sewage tank, characterized in that: It includes a box body (1) and a detachable top cover (2). The bottom of the box body (1) is provided with a water inlet pipe (3) that extends into the box body (1). The top cover (2) is provided with a partition plate (4). The bottom of the partition plate (4) is provided with a filter screen (5). The filter screen (5) is provided with a clearance groove for the water inlet pipe (3) to pass through. The top cover (2) is provided with a rinsing component for rinsing the filter screen (5); a metal heating plate (6) is provided on the bottom wall of the inner box (1), and a metal contact (7) connected to the metal heating plate (6) is provided on the outer wall of the box (1).
2. The high-efficiency self-cleaning sewage tank according to claim 1, characterized in that: The filter screen (5) is gradually tilted downward and then upward along the axis of the clearance hole.
3. The high-efficiency self-cleaning sewage tank according to claim 1, characterized in that: A backflush pipe (25) is provided on the upper cover (2) on the side of the partition plate (4) away from the cleaning pipe, and a backflush nozzle (26) is provided on the backflush pipe (25).
4. The high-efficiency self-cleaning sewage tank according to claim 1, characterized in that: The rinsing component includes a clean water pipe (22) disposed above the filter screen (5), a quick connector (23) disposed at the top of the clean water pipe (22), and a clean water nozzle (24) disposed at one end of the clean water pipe (22) located in the housing (1).