A sewage backflow prevention valve for a cleaning robot

Abstract

The utility model discloses a sewage anti -back -flow valve for cleaning robot, including outer valve body shell, the multiple limit sink that is symmetrically seted up in the bottom wall of outer valve body shell inside, the side middle part of outer valve body shell is symmetric respectively and is connected with the water inlet and the drain outlet, the water delivery butt joint groove is seted up in the position corresponding position of the inside of outer valve body shell and water inlet, drain outlet position, the water delivery butt joint seal ring is fixedly connected in the water delivery butt joint groove inside, the mounting groove is symmetric seted up in the inside top wall inner wall of outer valve body shell, the detachable valve core subassembly of movable joint has in the inside of outer valve body shell, the swing closing device is fixedly connected in the detachable valve core subassembly inside, the inner thread connection ring is fixedly connected in the top of outer valve body shell, the closing subassembly is threadedly connected in the inner thread connection ring inside, the closing subassembly bottom rotatable connection has the limit component, this valve body design interferes with the sewage backflow condition, prevents the nozzle pollution, pipeline blockage and peculiar smell diffusion.

Description

Technical Field

[0001] This utility model relates to the technical field of sewage backflow prevention valves, specifically a sewage backflow prevention valve for cleaning robots. Background Technology

[0002] A cleaning robot is an intelligent device that integrates automation technology, sensor technology, navigation algorithms, etc. Its core function is to autonomously complete cleaning tasks in specific scenarios without the need for full human operation. It is designed to replace or assist traditional manual cleaning, reduce the cleaning burden, and improve efficiency. It is widely used in different environments such as homes, offices, and commercial venues.

[0003] Cleaning robots are generally equipped with wastewater collection tanks, but the following problems exist: when the robot tilts or moves, wastewater can easily flow back from the water pipe to the nozzle or the outside. Backflow can cause nozzle contamination, pipe blockage, and odor diffusion. Currently, there is a lack of anti-backflow structures specifically designed for the small water channels of robots. Utility Model Content

[0004] The purpose of this utility model is to provide a sewage backflow prevention valve for cleaning robots, in order to solve the problem mentioned in the background art that cleaning robots are generally equipped with sewage collection tanks, but there are the following problems: when the robot is tilted or moved, sewage can easily flow back from the water pipe to the nozzle or the outside, which will cause nozzle contamination, pipe blockage and odor diffusion. Currently, there is a lack of a special anti-backflow structure for the small water circuit of the robot.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a sewage backflow prevention valve for a cleaning robot, comprising an outer valve body shell, wherein multiple limiting grooves are symmetrically formed on the bottom wall of the inner side of the outer valve body shell, and an inlet and a outlet are symmetrically connected to the middle of the side of the outer valve body shell, and water delivery docking grooves are formed at the corresponding positions of the inlet and outlet on the inner side of the outer valve body shell, and a water delivery docking sealing ring is fixedly connected inside the water delivery docking groove, and mounting grooves are symmetrically formed on the inner wall of the top of the outer valve body shell, a detachable valve core assembly is movably connected inside the outer valve body shell, a swing sealing device is fixedly connected inside the detachable valve core assembly, an internally threaded connecting ring is fixedly connected to the top of the outer valve body shell, and a sealing assembly is threadedly connected inside the internally threaded connecting ring, and a limiting component is rotatably connected to the bottom of the sealing assembly. This valve body design effectively prevents interference with sewage backflow, thus preventing nozzle contamination, pipe blockage, and odor diffusion.

[0006] Preferably, the detachable valve core assembly includes an anti-backflow inner valve body, which is movably connected to the inside of the outer valve body shell. Multiple positioning rods are symmetrically fixedly connected to the bottom end of the anti-backflow inner valve body, and the positioning rods are movably inserted into the limiting groove, making the positioning of the anti-backflow inner valve body more stable.

[0007] Preferably, a through hole is provided in the middle of the side of the anti-backflow inner valve body, and the position of the through hole corresponds to the position of the water inlet and the water outlet. A waterproof ring is fixedly connected to the middle of the inner side of the anti-backflow inner valve body, so that the water path can flow smoothly and leakage can be prevented after the anti-backflow inner valve body is installed.

[0008] Preferably, the swing sealing device includes a mounting frame and a fixed sealing ring seat. The mounting frame is fixedly connected to the middle of the inner side of the anti-backflow inner valve body. A fixed shaft is rotatably connected inside the mounting frame, and a fixed connecting frame is rotatably connected to the outside of the fixed shaft. A sealing plate is fixedly connected to the end of the fixed connecting frame. A float is fixedly installed in the middle of the sealing plate. The fixed sealing ring seat is fixedly connected to the middle of the inner side of the anti-backflow inner valve body and contacts the top surface of the sealing plate. A circular through groove matching the float is opened in the middle of the fixed sealing ring seat, so that sewage can flow in one direction as much as possible.

[0009] Preferably, the sealing assembly includes a locking top cover, which is threadedly connected to the inside of an internally threaded connecting ring. A force-bearing handle is fixedly connected to the top of the locking top cover, and an installation annular groove is provided on the inner side of the internally threaded connecting ring to further install and secure the anti-backflow inner valve body.

[0010] Preferably, the limiting component includes a rotating connecting ring, which is rotatably connected to the inside of the mounting annular groove. A connecting ring is fixedly connected to the bottom end of the rotating connecting ring, and a positioning frame is fixedly connected to the bottom end of the connecting ring. The side of the positioning frame matches the mounting groove, so that the rotation effect of locking the top cover is maintained when the anti-backflow inner valve body is installed and tightened.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] This valve body allows sewage to flow in only one direction, effectively preventing sewage backflow during tilting, handling, or bumping of the cleaning robot, preventing sewage from flowing back into the nozzle, avoiding secondary pollution, and having a simple structure that is easy to manufacture and maintain, making it suitable for small robot water systems. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0014] Figure 2 This is a cross-sectional view of the present invention;

[0015] Figure 3 This utility model Figure 2 A magnified view of the structure at point A in the middle;

[0016] Figure 4 This is a schematic diagram showing the distribution of the mounting slots in this utility model.

[0017] In the diagram: 1. Outer valve body shell; 2. Limiting groove; 3. Anti-backflow inner valve body; 4. Positioning rod; 5. Inlet; 6. Outlet; 7. Mounting bracket; 8. Fixed shaft; 9. Fixed connecting bracket; 10. Sealing plate; 11. Float ball; 12. Fixed sealing ring seat; 13. Waterproof ring; 14. Mounting groove; 15. Positioning bracket; 16. Locking top cover; 17. Internal threaded connecting ring; 18. Rotating connecting ring; 19. Mounting annular groove; 20. Connecting ring; 21. Force-bearing handle; 22. Water supply docking groove; 23. Water supply docking sealing ring. Detailed Implementation

[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0019] Please see Figure 1-4 This utility model provides a sewage backflow prevention valve for a cleaning robot, including an outer valve body shell 1. Multiple limiting grooves 2 are symmetrically formed on the bottom wall of the inner side of the outer valve body shell 1. An inlet 5 and a drain 6 are symmetrically connected to the middle of the side of the outer valve body shell 1. Water delivery connecting grooves 22 are formed at positions corresponding to the inlet 5 and drain 6 inside the outer valve body shell 1. A water delivery connecting sealing ring 23 is fixedly connected inside the water delivery connecting groove 22. Installation grooves 14 are symmetrically formed on the inner wall of the top of the outer valve body shell 1. A detachable valve core assembly is movably connected inside the outer valve body shell 1. A swing sealing device is fixedly connected inside the detachable valve core assembly. An internally threaded connecting ring 17 is fixedly connected to the top of the outer valve body shell 1. A sealing assembly is threadedly connected inside the internally threaded connecting ring 17. A limiting component is rotatably connected to the bottom of the sealing assembly.

[0020] Furthermore, the detachable valve core assembly includes an anti-backflow inner valve body 3, which is movably connected to the inside of the outer valve body shell 1. Multiple positioning rods 4 are symmetrically fixedly connected to the bottom end of the anti-backflow inner valve body 3. The positioning rods 4 are movably inserted into the limiting groove 2. When installing the anti-backflow inner valve body 3, the positioning rods 4 need to be inserted into the limiting groove 2 and fixed to it from the bottom of the anti-backflow inner valve body 3.

[0021] Furthermore, a through hole is provided in the middle of the side of the anti-backflow inner valve body 3. The position of the through hole corresponds to the position of the inlet 5 and the outlet 6. The inlet 5 and the outlet 6 are used to connect the inlet pipe and the sewage tank, respectively. At the same time, a corrosion-resistant sealing ring is provided to improve the waterproof performance. A waterproof ring 13 is fixedly connected to the middle of the inner side of the anti-backflow inner valve body 3 to prevent sewage from leaking into the gap between the anti-backflow inner valve body 3 and the outer valve body shell 1 when it passes through.

[0022] Furthermore, the swing sealing device includes a mounting frame 7 and a fixed sealing ring seat 12. The mounting frame 7 is fixedly connected to the middle of the inner side of the anti-backflow inner valve body 3. A fixed shaft 8 is rotatably connected inside the mounting frame 7, and a fixed connecting frame 9 is rotatably connected to the outside of the fixed shaft 8. A sealing plate 10 is fixedly connected to the end of the fixed connecting frame 9. A float ball 11 is fixedly installed in the middle of the sealing plate 10. The fixed sealing ring seat 12 is fixedly connected to the middle of the inner side of the anti-backflow inner valve body 3 and contacts the top surface of the sealing plate 10. A circular through groove matching the float ball 11 is opened in the middle of the fixed sealing ring seat 12. When sewage enters from the inlet 5, the sewage impacts the sealing plate 10, causing the sealing plate 10 and the fixed connecting frame 9 to rotate along the fixed shaft 8. The sewage flows through the drain 6 and enters the sewage collection tank.

[0023] Furthermore, the sealing assembly includes a locking top cover 16, which is threadedly connected to the inside of an internally threaded connecting ring 17. A force-bearing handle 21 is fixedly connected to the top of the locking top cover 16, and an installation annular groove 19 is provided on the inner side of the internally threaded connecting ring 17.

[0024] Furthermore, the limiting component includes a rotating connecting ring 18, which is rotatably connected to the inside of the mounting annular groove 19. A connecting ring 20 is fixedly connected to the bottom end of the rotating connecting ring 18. A positioning frame 15 is fixedly connected to the bottom end of the connecting ring 20, and the side of the positioning frame 15 matches the mounting groove 14.

[0025] When installing the anti-backflow inner valve body 3, insert the anti-backflow inner valve body 3 into the outer valve body shell 1, so that the side of the anti-backflow inner valve body 3 is inserted into the mounting groove 14. Insert the positioning rod 4 into the limiting groove 2, and then use the force handle 21 to screw the locking top cover 16 into the internal threaded connecting ring 17, so that the bottom end of the positioning bracket 15 contacts the top end of the anti-backflow inner valve body 3. Continue to rotate the locking top cover 16 to squeeze the anti-backflow inner valve body 3 until the locking top cover 16 seals the outer valve body shell 1.

[0026] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A sewage backflow prevention valve for a cleaning robot, comprising an outer valve body housing (1), characterized in that: The outer valve body shell (1) has multiple limiting grooves (2) symmetrically opened on the bottom wall inside. The outer valve body shell (1) has a water inlet (5) and a drain outlet (6) symmetrically connected to the middle of the side. The outer valve body shell (1) has water delivery docking grooves (22) at the positions corresponding to the positions of the water inlet (5) and the drain outlet (6). A water delivery docking sealing ring (23) is fixedly connected inside the water delivery docking groove (22). The outer valve body shell (1) has symmetrically opened mounting grooves (14) on the inner wall of the top wall inside. A detachable valve core assembly is movably connected inside the outer valve body shell (1). A swing sealing device is fixedly connected inside the detachable valve core assembly. An internal threaded connecting ring (17) is fixedly connected to the top of the outer valve body shell (1). A sealing assembly is threaded inside the internal threaded connecting ring (17). A limiting assembly is rotatably connected to the bottom of the sealing assembly.

2. The sewage backflow prevention valve for a cleaning robot according to claim 1, characterized in that: The detachable valve core assembly includes an anti-backflow inner valve body (3), which is movably connected to the inside of the outer valve body shell (1). Multiple positioning rods (4) are symmetrically fixedly connected to the bottom end of the anti-backflow inner valve body (3), and the positioning rods (4) are movably inserted into the limiting groove (2).

3. A sewage backflow prevention valve for a cleaning robot according to claim 2, characterized in that: The anti-backflow inner valve body (3) has a through hole in the middle of its side. The position of the through hole corresponds to the position of the inlet (5) and the outlet (6). A waterproof ring (13) is fixedly connected to the middle of the inner side of the anti-backflow inner valve body (3).

4. A sewage backflow prevention valve for a cleaning robot according to claim 1, characterized in that: The swing sealing device includes a mounting frame (7) and a fixed sealing ring seat (12). The mounting frame (7) is fixedly connected to the middle of the inner side of the anti-backflow inner valve body (3). A fixed shaft (8) is rotatably connected inside the mounting frame (7). A fixed connecting frame (9) is rotatably connected to the outer side of the fixed shaft (8). A sealing plate (10) is fixedly connected to the end of the fixed connecting frame (9). A float (11) is fixedly installed in the middle of the sealing plate (10). The fixed sealing ring seat (12) is fixedly connected to the middle of the inner side of the anti-backflow inner valve body (3) and contacts the top surface of the sealing plate (10). A circular through groove matching the float (11) is opened in the middle of the fixed sealing ring seat (12).

5. A sewage backflow prevention valve for a cleaning robot according to claim 1, characterized in that: The sealing assembly includes a locking top cover (16), which is threaded to the inside of an internal threaded connecting ring (17). A force-bearing handle (21) is fixedly connected to the top of the locking top cover (16), and an installation annular groove (19) is provided on the inner side of the internal threaded connecting ring (17).

6. A sewage backflow prevention valve for a cleaning robot according to claim 1, characterized in that: The limiting component includes a rotating connecting ring (18), which is rotatably connected to the inside of the mounting annular groove (19). A connecting ring (20) is fixedly connected to the bottom end of the rotating connecting ring (18), and a positioning frame (15) is fixedly connected to the bottom end of the connecting ring (20). The side of the positioning frame (15) matches the mounting groove (14).

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