A flushing structure of a sewage suction pipe and a self-cleaning system of a floor cleaning robot

Abstract

The utility model discloses a kind of flushing structure of sewage suction pipe and floor cleaning robot self-cleaning system, belong to floor cleaning robot technical field.It includes: sewage suction pipe;Flush connector, it includes joint part and water inlet pipe mouth, joint part is connected with sewage suction pipe, water inlet pipe mouth is arranged in the lateral wall of joint part, the second channel section for water inlet is inside water inlet pipe mouth, the second channel section and the inner wall curved surface of joint part smoothly link to form tangential flushing jet path.Flush connector with tangential jet path is set, so that clean water can flow along its inner wall curved surface at high speed when entering joint part through water inlet pipe mouth, form rotating water flow (eddy current), carry out all-round, high-intensity flushing to sewage suction pipe inner wall, effectively remove adhered stain and residual sewage.

Description

Technical Field

[0001] This utility model belongs to the field of floor cleaning robot technology, specifically relating to a rinsing structure for a suction pipe and a self-cleaning system for a floor cleaning robot. Background Technology

[0002] With the development of intelligent cleaning equipment, floor cleaning robots, as automated devices that integrate floor cleaning, vacuuming, and self-cleaning functions, have been widely used in homes and commercial spaces. Existing floor cleaning robots typically include components such as a clean water tank, a wastewater tank, a floor brush mechanism, and a suction pipe. They complete floor cleaning operations through methods such as water spraying, roller brush wiping, and negative pressure suction.

[0003] However, in actual use, after the floor cleaning robot completes the cleaning task, sewage or impurities often remain in its suction pipe. Long-term accumulation can easily lead to pipe blockage, bacterial growth, and odor, affecting the service life and hygiene performance of the equipment.

[0004] In addition, traditional suction pipe cleaning methods often rely on manual disassembly and cleaning or simple water rinsing, which are inefficient and difficult to achieve thorough cleaning. Utility Model Content

[0005] This invention addresses the aforementioned problems in the existing technology by proposing a flushing structure for a suction pipe and a self-cleaning system for a floor cleaning robot.

[0006] This utility model can be achieved through the following technical solutions:

[0007] A flushing structure for a suction pipe, comprising:

[0008] Sewage suction pipe;

[0009] A flushing connector includes a connector portion and a water inlet. The connector portion is connected to the suction pipe. The water inlet is located on the side wall of the connector portion. The water inlet has a second channel section inside for water intake. The second channel section is smoothly connected to the inner wall curved surface of the connector portion to form a tangential flushing jet path.

[0010] As a further improvement of this utility model, when the connector is set vertically, the first channel segment is set inclined downwards and forms an angle of 5°-30° with the horizontal plane.

[0011] As a further improvement of this utility model, the inner diameter of the first channel segment gradually decreases from the outside to the inside.

[0012] As a further improvement of this utility model, the end of the water inlet pipe has a second channel segment connected to the first channel segment. The inner diameter of the second channel segment gradually increases from the outside to the inside and then gradually decreases. The inner diameter of the second channel segment is greater than the inner diameter of the first channel segment.

[0013] A self-cleaning system for floor cleaning robots is also provided, including:

[0014] The flushing structure of the aforementioned suction pipe;

[0015] Robotic clean water tank and robotic wastewater tank;

[0016] A floor brush mechanism is used to clean the floor. The robot's clean water tank is connected to the floor brush mechanism through a first water supply pipe. One end of the suction pipe is connected to the floor brush mechanism, and the other end is connected to the robot's wastewater tank through the flushing connector.

[0017] The solenoid valve has its inlet end connected to an external water source via a first inlet pipe. The solenoid valve has at least two output branches.

[0018] The first output branch is connected to the robot's clean water tank via the second water inlet pipe;

[0019] The second output branch is connected to the inlet of the flushing connector via the second water supply pipe.

[0020] As a further improvement of this utility model, it also includes a blower, which is used to generate negative pressure suction in the suction pipe to suck sewage into the robot sewage tank.

[0021] As a further improvement of this utility model, the floor brush mechanism includes a roller brush and a squeegee, with the roller brush and the squeegee arranged in front of and behind each other.

[0022] As a further improvement of this utility model, the first water delivery pipe is connected to the area where the roller brush is located, and the sewage suction pipe is connected to the area where the squeegee is located.

[0023] As a further improvement of this utility model, it also includes a base station system, which includes a base station clean water tank and a base station wastewater tank. The base station clean water tank serves as an external water source and delivers clean water to the solenoid valve through the first water inlet pipe. The robot wastewater tank has a drainage pipe and is used to connect to the base station wastewater tank.

[0024] As a further improvement of this utility model, the base station system also includes a water storage pan. The sewage formed after rinsing the suction pipe falls into the water storage pan, and the sewage in the water storage pan is sucked into the robot sewage tank through the suction pipe.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] 1. By setting up a flushing joint with a tangential jet path, clean water can flow at high speed along the inner curved surface of the joint when it enters through the inlet pipe, forming a rotating water flow (vortex) to flush the inner wall of the suction pipe in an all-round and high-intensity manner, effectively removing attached stains and residual sewage.

[0027] 2. The inlet of the flushing connector adopts a convergent flow channel structure and is set at an inclined angle to form a high-speed swirling flush, which improves the flushing force and coverage of the water flow, and achieves efficient water-saving cleaning without increasing energy consumption.

[0028] 3. The use of a solenoid valve with two output branches enables intelligent switching between clean water supply and suction pipe flushing, simplifies the water circuit structure, reduces redundant parts, makes the whole machine more compact, and improves the automation level of the floor cleaning robot in the cleaning and self-maintenance process.

[0029] 4. With the cooperation of the base station system, the entire process of automatic water supply for robots, sewage collection by flushing the suction pipe, and sewage recycling and discharge can be completed in a closed loop, supporting long-term continuous operation and improving the intelligence level of the equipment and the convenience of user use. Attached Figure Description

[0030] Figure 1 This is a structural schematic diagram of the floor cleaning robot of this utility model;

[0031] Figure 2 This is a schematic diagram of the base station system of this utility model;

[0032] Figure 3 This is a cross-sectional view of the flushing connector and the suction pipe of this utility model after they are connected;

[0033] Figure 4 This is a cross-sectional view of the flushing connector of this utility model.

[0034] In the diagram, 100 is the robot's clean water tank; 101 is the first water delivery pipe; 110 is the robot's wastewater tank; 120 is the floor brush mechanism; 121 is the roller brush; 122 is the squeegee; 130 is the suction pipe; 140 is the solenoid valve; 141 is the first water inlet pipe; 142 is the second water inlet pipe; 143 is the second water delivery pipe; 150 is the blower; and 160 is the second peristaltic pump.

[0035] 200. Base station clean water tank; 210. Base station wastewater tank; 220. First peristaltic pump;

[0036] 300. Flushing connector; 310. Connector section; 320. Water inlet; 321. First channel section; 322. Second channel section. Detailed Implementation

[0037] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. The technical methods of the present invention will be further described, but the present invention is not limited to these embodiments.

[0038] like Figures 1-2 As shown, this utility model provides a flushing structure for a suction pipe, applied to the self-cleaning system of the aforementioned floor cleaning robot, comprising:

[0039] Suction pipe 130 is used to suck up sewage from the ground;

[0040] The flushing connector 300 includes a connector portion 310 and a water inlet 320. The connector portion 310 is connected to the suction pipe 130. The water inlet 320 is disposed on the side wall of the connector portion 310. The interior of the water inlet 320 has a first channel section 321 for water inlet. The first channel section 321 is smoothly connected to the inner wall curved surface of the connector portion 310 to form a tangential flushing jet path.

[0041] When the system starts the self-cleaning program of the suction pipe 130, clean water enters the connector 310 through the first channel section 321 of the inlet pipe 320 and flows at high speed along its inner wall curved surface, forming a rotating water flow (vortex) to thoroughly and intensely flush the inner wall of the suction pipe 130, effectively removing attached stains and residual sewage.

[0042] This design significantly improves flushing coverage and flushing intensity, enabling water-saving and efficient cleaning without increasing energy consumption. It effectively removes stains, residues, and microorganisms adhering to the pipe walls, effectively preventing pipe blockage and odor generation, and greatly improving cleaning efficiency and hygiene performance.

[0043] Preferably, when the connector 310 is vertically set, the water inlet 320 is inclined downward and forms an angle of 5°-30° with the horizontal plane. This angle design allows the water to flow more naturally along the inner wall surface when it enters the connector 310, enhancing the swirling effect and thereby improving the flushing coverage and cleaning intensity of the inner wall of the suction pipe 130.

[0044] Preferably, the inner diameter of the first channel section 321 gradually decreases from the outside to the inside, forming a converging flow channel, which accelerates and concentrates the kinetic energy of the water flow in this area, forming a jet with high flow velocity and high scouring force, thereby increasing the scouring intensity of the water flow when it enters the suction pipe 130, and thus improving the flushing effect on the suction pipe 130.

[0045] Preferably, the end of the water inlet 320 has a second channel section 322 that communicates with the first channel section 321. The inner diameter of the second channel section 322 gradually increases and then gradually decreases from the outside to the inside, and the inner diameter of the second channel section 322 is larger than the inner diameter of the first channel section 321. It should be noted that the reason why the inner diameter of the second channel section 322 gradually increases and then gradually decreases from the outside to the inside is firstly to connect the water pipe joint, and also to expand the pipe diameter. When water flows from the second channel section 322 with a larger pipe diameter to the first channel section 321 with a smaller pipe diameter, the flushing capacity of the water flow can be further improved.

[0046] like Figures 3-4 As shown, this utility model also provides a self-cleaning system for a floor cleaning robot, comprising:

[0047] The flushing structure of the suction pipe 130 mentioned above;

[0048] Robotic clean water tank 100 and robot wastewater tank 110;

[0049] The floor brush mechanism 120 is used to clean the floor. The robot clean water tank 100 is connected to the floor brush mechanism 120 through the first water supply pipe 101. One end of the suction pipe 130 is connected to the floor brush mechanism 120, and the other end is connected to the robot wastewater tank 110 through the flushing connector 300.

[0050] Solenoid valve 140, whose inlet end is connected to an external water source through a first water inlet pipe 141, has at least two output branches, wherein...

[0051] The first output branch is connected to the robot's clean water tank 100 via the second water inlet pipe 142;

[0052] The second output branch is connected to the inlet 320 of the flushing connector 300 via the second water supply pipe 143;

[0053] In other words, by setting up a solenoid valve 140 with at least two output branches, intelligent control of the water flow direction is achieved, enabling the floor cleaning robot to have two working modes:

[0054] I. Normal Cleaning Mode:

[0055] When the solenoid valve 140 switches to the first output branch, external water enters the solenoid valve through the first water inlet pipe 141 and is output from this branch, and is transported to the robot clean water tank 100 via the second water inlet pipe 142.

[0056] The clean water in the clean water tank is then transported to the floor brush mechanism 120 through the first water supply pipe 101 for floor cleaning operations.

[0057] II. Self-cleaning mode of the suction hose 130:

[0058] When the suction pipe 130 needs to be cleaned, the solenoid valve 140 switches to the second output branch, and the external water source is directly delivered to the inside of the suction pipe 130 through the second water supply pipe 143 to form a flushing water flow, which performs high-pressure flushing on the inner wall of the suction pipe 130. The flushed sewage falls into the preset water storage area and is finally sucked into the robot sewage tank 110 through the suction pipe 130 for storage, completing the self-cleaning cycle.

[0059] By switching between the two states, the system can flexibly control the water flow path according to actual needs, achieving efficient floor cleaning and self-cleaning functions.

[0060] It is worth mentioning that the self-cleaning system of the floor cleaning robot designed in this embodiment has undergone several optimizations in structural design and functional implementation compared with the existing technology, solving several technical problems existing in traditional floor cleaning robots, specifically in the following aspects:

[0061] 1. Solve the problems of blockage and odor in suction pipe 130: By setting up a dedicated flushing channel, the suction pipe 130 can be flushed regularly or as needed using an external water source, effectively removing residues inside the pipe and avoiding blockage and hygiene problems;

[0062] 2. Improve system integration and automation: A multi-way solenoid valve is used to realize two functions: clean water supply and 130° flushing of the suction pipe. This simplifies the overall water circuit structure and realizes integrated control of clean water supply, floor cleaning and self-cleaning of key components, thereby improving the intelligence level of the equipment.

[0063] 3. Improved cleaning efficiency and ease of use: The suction pipe 130 can be automatically rinsed after the cleaning task is completed without manual intervention, which reduces user maintenance costs and improves the ease of use and continuous operation capability of the equipment;

[0064] 4. Compact structure and strong adaptability: The entire system can be integrated into the floor cleaning robot body or the supporting base station, and is suitable for a variety of models and application scenarios. It is especially suitable for commercial cleaning robot systems that work continuously for a long time.

[0065] In summary, this utility model, through the rational design of the water circuit control system and the ingenious use of the multi-channel switching function of the solenoid valve, not only achieves effective cleaning of the floor by the floor cleaning robot, but also solves the technical pain points of easy clogging and difficult cleaning of the suction pipe 130. It has good practicality, economy and promotion prospects.

[0066] Preferably, it also includes a blower 150, which is located near the suction pipe 130 or the robot wastewater tank 110 to create a negative pressure environment inside the suction pipe 130. When the floor cleaning robot is performing floor cleaning operations, the blower 150 is started to generate a stable negative pressure suction inside the suction pipe 130. This negative pressure allows the wastewater and residual liquid on the floor to be quickly sucked into the suction pipe 130 through the floor brush mechanism 120 and transported to the robot wastewater tank 110.

[0067] Preferably, the floor brush mechanism 120 includes a roller brush 121 and a squeegee 122, which are arranged one in front of the other. The roller brush 121 is used to scrub the floor and remove dust, stains and other pollutants. The squeegee 122 is used to scrape off the residual sewage on the floor and suck it into the robot sewage tank 110 through the suction pipe 130.

[0068] The first water supply pipe 101 is connected to the area where the roller brush 121 is located, and the suction pipe 130 is connected to the area where the squeegee 122 is located. Through functional zoning, interference between clean water and sewage is avoided. The roller brush 121 cleans the ground efficiently with the assistance of clean water, while the squeegee 122 quickly scrapes off the sewage and pulls it off the ground through the suction pipe 130. The two work together to improve the overall cleaning efficiency and effect.

[0069] Preferably, it also includes a base station system, which comprises a base station clean water tank 200 and a base station wastewater tank 210, forming an external water supply and wastewater collection support platform for the floor cleaning robot during its cleaning operation. The specific operation mode is as follows:

[0070] 1. Water supply: The base station water tank 200 serves as a stable external water source, supplying clean water to the solenoid valve 140 inside the robot through the first water inlet pipe 141. The solenoid valve 140 switches the water flow direction according to the working mode, thereby replenishing the robot water tank 100 or rinsing the suction pipe 130.

[0071] II. Wastewater Collection: After the cleaning task is completed, the wastewater collected in the robot's wastewater tank 110 can be automatically discharged into the base station's wastewater tank 210 through the set drainage pipe to complete the centralized treatment of wastewater.

[0072] Additionally, it should be noted that the base station system also includes a water storage pan (not shown in the figure). Before flushing the sewage pipe, the robot moves to the area where the base station system is located and then begins flushing. The sewage formed after flushing the suction pipe 130 falls into the water storage pan for collection. Then, the sewage in the water storage pan is sucked into the robot sewage tank 110 through the suction pipe 130. Finally, the sewage in the robot sewage tank 110 is discharged into the base station sewage tank 210.

[0073] The water storage tray is designed to collect wastewater from rinsing the suction pipe 130, preventing it from dripping directly onto the ground and causing secondary pollution. This helps maintain a clean and tidy environment around the base station and improves the user experience.

[0074] Overall, the entire base station system serves as a "transfer station" for the robot to automatically recharge, replenish water, and discharge wastewater after completing its tasks. It supports long-term continuous operation, and the large-capacity clean water and wastewater tanks allow the robot to perform multiple cleaning tasks over a wide area without frequent interruptions. It is particularly suitable for places with high requirements for cleaning efficiency and continuity, such as shopping malls, office buildings, and hospitals.

[0075] In addition, the robot sewage tank 110 and the base station clean water tank 200 are respectively equipped with a first peristaltic pump 220 and a second peristaltic pump 160. The base station clean water tank 200 is powered by the first peristaltic pump 220 during the process of transporting clean water to the solenoid valve 140, and the robot sewage tank 110 is powered by the second peristaltic pump 160 during the process of transporting sewage to the base station sewage tank 210.

[0076] The technical means disclosed in this utility model are not limited to those described above, but also include technical solutions composed of any combination of the above technical features. The above are specific embodiments of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications are also considered within the scope of protection of this utility model.

[0077] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0078] Furthermore, in this utility model, the use of terms such as "first," "second," and "a" is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified. The terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two elements or the interaction between two elements, unless otherwise explicitly specified. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0079] The technical solutions of the various embodiments of this utility model can be combined with each other, but only if they can be implemented by those skilled in the art. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the protection scope claimed by this utility model.

[0080] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A flushing structure for a suction pipe, characterized in that, include: Sewage suction pipe; A flushing connector includes a connector portion and a water inlet. The connector portion is connected to the suction pipe. The water inlet is located on the side wall of the connector portion. The interior of the water inlet has a first channel section for water intake. The first channel section is smoothly connected to the inner wall curved surface of the connector portion to form a tangential flushing jet path.

2. The flushing structure of a suction pipe according to claim 1, characterized in that, When the connector is set vertically, the first channel segment is set inclined downwards and forms an angle of 5°-30° with the horizontal plane.

3. The flushing structure of a suction pipe according to claim 1, characterized in that, The inner diameter of the first channel segment gradually decreases from the outside to the inside.

4. The flushing structure of a suction pipe according to claim 1, characterized in that, The end of the water inlet pipe has a second channel section that is connected to the first channel section. The inner diameter of the second channel section gradually increases from the outside to the inside and then gradually decreases. The inner diameter of the second channel section is larger than the inner diameter of the first channel section.

5. A self-cleaning system for a floor cleaning robot, characterized in that, include: The flushing structure of the suction pipe as described in any one of claims 1-4 above; Robotic clean water tank and robotic wastewater tank; A floor brush mechanism is used to clean the floor. The robot's clean water tank is connected to the floor brush mechanism through a first water supply pipe. One end of the suction pipe is connected to the floor brush mechanism, and the other end is connected to the robot's wastewater tank through the flushing connector. The solenoid valve has its inlet end connected to an external water source via a first inlet pipe. The solenoid valve has at least two output branches. The first output branch is connected to the robot's clean water tank via the second water inlet pipe; The second output branch is connected to the inlet of the flushing connector via the second water supply pipe.

6. The self-cleaning system for a floor cleaning robot according to claim 5, characterized in that, It also includes a blower, which is used to generate negative pressure suction in the suction pipe to draw sewage into the robot's sewage tank.

7. The self-cleaning system for a floor cleaning robot according to claim 5, characterized in that, The floor brush mechanism includes a roller brush and a squeegee, with the roller brush and the squeegee positioned one in front of the other.

8. The self-cleaning system for a floor cleaning robot according to claim 7, characterized in that, The first water delivery pipe is connected to the area where the roller brush is located, and the suction pipe is connected to the area where the squeegee is located.

9. A self-cleaning system for a floor cleaning robot according to claim 5, characterized in that, It also includes a base station system, which includes a base station clean water tank and a base station wastewater tank. The base station clean water tank serves as an external water source and delivers clean water to the solenoid valve through the first water inlet pipe. The robot wastewater tank has a drainage pipe and is used to connect to the base station wastewater tank.

10. A self-cleaning system for a floor cleaning robot according to claim 9, characterized in that, The base station system also includes a water storage pan. Wastewater generated after rinsing the suction pipe falls into the water storage pan, and the wastewater in the water storage pan is sucked into the robot's wastewater tank through the suction pipe.

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