Automatic pollution discharge mechanism
The sewage discharge structure, which combines a siphon mechanism with a ball valve, solves the problems of short pipe life and easy clogging of high-pressure pumps in existing technologies, achieving controllable sewage flow rate and extended equipment life, while reducing maintenance costs.
Patent Information
- Application Number
- CN202423262706.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-12-30
AI Technical Summary
In existing automatic sewage discharge mechanisms, the clamp-type structure leads to a shortened pipe life, impaired ball valve sealing, and the high-pressure pump plus ball valve structure is prone to clogging and has high cost.
By combining a siphon mechanism with a ball valve, the system utilizes atmospheric pressure to achieve unobstructed discharge of sewage. The combined structure of the siphon mechanism, hose, pagoda connector, and drain pipe prevents sewage from directly contacting the ball valve, thus extending the service life of the ball valve and pump.
This improves the service life of ball valves and pumps, ensures controllable sewage flow rate, reduces maintenance needs, and lowers maintenance costs.
Smart Images

Figure CN223537414U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cleaning technology, and in particular to an automatic sewage discharge mechanism. Background Technology
[0002] With the rapid development of technology and the continuous improvement of people's living standards, smart home devices are gradually entering thousands of households. Cleaning robots, as an important component, are experiencing rapid market demand growth. Cleaning robots typically have a sewage discharge mechanism. Currently, existing automatic sewage discharge mechanisms employ two methods: manual and automatic. One method uses a clamping structure to flatten the sewage pipe for sealing, which significantly reduces the pipe's lifespan. Another method uses a ball valve to control opening and closing, but sand and sludge from the sewage tank can flow into the ball valve, greatly affecting its sealing performance and lifespan. A third method uses a high-pressure pump and ball valve for sewage discharge. This structure can ensure the sewage flow for a short time, but over time, sludge accumulates at the high-pressure pump and ball valve, causing blockages and significantly increasing costs. Utility Model Content
[0003] The purpose of this invention is to address the problems in existing technologies where sewage pipes are flattened using a clamping structure for sealing, which significantly reduces pipe lifespan. Using a ball valve to control opening and closing allows sand and sludge from the sewage tank to flow into the ball valve, greatly impacting its sealing performance and lifespan. While a high-pressure pump and ball valve system can maintain the sewage flow for a short time, over time, sludge accumulates at both the pump and the ball valve, causing blockages and significantly increasing costs. Therefore, this invention proposes an automatic sewage discharge mechanism.
[0004] To achieve the above objectives, the present invention adopts the following technical solution: an automatic sewage discharge mechanism, including a sewage tank, a siphon mechanism installed inside the sewage tank, the output end of the siphon mechanism passing through the bottom end of the sewage tank and fixed with a flexible hose, a first pagoda connector installed at the bottom end of the flexible hose, a ball valve installed at the bottom end of the first pagoda connector, a second pagoda connector installed at the bottom end of the ball valve, and a first sewage discharge pipe installed at the bottom end of the second pagoda connector.
[0005] Preferably, the end of the first drain pipe away from the second pagoda joint is fixed with a connecting bend by bolts, and the end of the connecting bend away from the first drain pipe is fixed with a second drain pipe by bolts.
[0006] Preferably, a diversion pipe is fixed on the outer wall of the second sewage pipe.
[0007] Preferably, a first flange is fixed to the outer wall of the end of the diversion pipe away from the second sewage pipe.
[0008] Preferably, a second flange is fixed to the outer wall of the bottom end of the second sewage pipe.
[0009] Compared with the prior art, the advantages and positive effects of this utility model are as follows:
[0010] In this invention, when the sewage tank is full (the sewage contains sand and mud), without a siphon mechanism, the water will flow to the ball valve and remain there, while the sand and mud will be trapped at the valve opening. When the valve opens, the sand and mud will rub against the ball inside the valve, eventually causing wear and tear on the inner ball and sealing ring, resulting in leaks. This device, by adding a siphon mechanism, ensures that when the sewage tank is full, the ball valve is initially closed. An air state is created within the siphon mechanism, hose, and first pagoda connector, effectively protecting the ball valve. When the ball valve opens, sewage enters the siphon mechanism from the sewage tank through atmospheric pressure, then flows into the first pagoda connector, ball valve, second pagoda connector, first drain pipe, connecting bend, and second drain pipe without being obstructed by the ball valve. Finally, the sewage is discharged from the machine through the opening of the second drain pipe or the diversion pipe. This design addresses the lifespan issues of ball valves and solenoid valves in existing similar products, ensuring controllable overall sewage flow rate during discharge. The addition of the siphon mechanism also extends the overall lifespan of the ball valves and solenoid valves, reducing after-sales maintenance issues for fully automatic floor scrubbers. Attached Figure Description
[0011] Figure 1 A perspective view of an automatic sewage discharge mechanism is provided for this utility model;
[0012] Figure 2 A cross-sectional view of an automatic sewage discharge mechanism is provided for this utility model;
[0013] Figure 3 A top-view perspective view of an automatic sewage discharge mechanism is provided for this utility model.
[0014] Legend: 1. Sewage tank; 2. Siphon mechanism; 3. Hose; 4. First pagoda connector; 5. Ball valve; 6. Second pagoda connector; 7. First drain pipe; 8. Connecting bend; 9. Second drain pipe; 10. Diversion pipe; 11. First flange; 12. Second flange. Detailed Implementation
[0015] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.
[0016] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.
[0017] Example 1, such as Figure 1-3 As shown, this utility model provides an automatic sewage discharge mechanism, including a sewage tank 1, a siphon mechanism 2 installed inside the sewage tank 1, the output end of the siphon mechanism 2 passing through the bottom end of the sewage tank 1 and fixed with a hose 3, a first pagoda connector 4 installed at the bottom end of the hose 3, a ball valve 5 installed at the bottom end of the first pagoda connector 4, a second pagoda connector 6 installed at the bottom end of the ball valve 5, and a first sewage discharge pipe 7 installed at the bottom end of the second pagoda connector 6.
[0018] The overall effect of Embodiment 1 is as follows: When the sewage tank 1 is full, the sewage contains sand and mud. Without the siphon mechanism 2, the water would flow to the ball valve 5 and remain there, while the sand and mud would be trapped at the valve. When the valve is open, the sand and mud would rub against the ball inside the valve, eventually causing wear and tear on the inner ball and sealing ring, leading to leakage. With the addition of the siphon mechanism 2, when the sewage tank 1 is full, the ball valve 5 is initially closed. An air state is formed within the siphon mechanism 2, hose 3, and first pagoda connector 4, effectively protecting the ball valve 5.
[0019] Example 2, as Figure 1-3 As shown, the end of the first sewage pipe 7 away from the second pagoda joint 6 is fixed with a connecting elbow 8 by bolts. The end of the connecting elbow 8 away from the first sewage pipe 7 is fixed with a second sewage pipe 9 by bolts. A diversion pipe 10 is fixed on the outer wall of the second sewage pipe 9. A first flange 11 is fixed on the outer wall of the end of the diversion pipe 10 away from the second sewage pipe 9. A second flange 12 is fixed on the outer wall of the bottom end of the second sewage pipe 9.
[0020] The overall effect of Embodiment 2 is that when the ball valve 5 is opened, the sewage enters the siphon mechanism from the sewage tank through atmospheric pressure, and then enters the first pagoda connector 4, the ball valve 5, the second pagoda connector 6, the first drain pipe 7, the connecting bend 8, and the second drain pipe 9 without being obstructed by the ball valve 5. Finally, the sewage is discharged from the main body through the opening of the second drain pipe 9 or the diversion pipe 10. This addresses the lifespan issues of the ball valve 5 and the solenoid valve in existing similar products, solves the problem of controllable overall sewage flow rate during sewage discharge, and improves the overall lifespan of the ball valve 5 and the solenoid valve by adding the siphon mechanism 2, reducing after-sales maintenance issues for the fully automatic floor scrubber. The setting of the first flange 11 and the second flange 12 facilitates connection to other external sewage pipes, making it more practical.
[0021] Working principle: When the sewage tank 1 is full, the sewage contains sand and mud. Without the siphon mechanism 2, the water would flow to the ball valve 5 and settle, while the sand and mud would be trapped at the valve. When the valve is open, the sand and mud would rub against the ball inside the valve. Over time, this would wear down the inner ball and the sealing ring, causing leakage. With the addition of the siphon mechanism 2, when the sewage tank 1 is full, the ball valve 5 is initially closed. An air state is formed within the siphon mechanism 2, hose 3, and first pagoda connector 4, effectively protecting the ball valve 5. When the ball valve 5 opens, sewage enters the siphon mechanism from the sewage tank through atmospheric pressure, then flows into the first pagoda connector 4, ball valve 5, second pagoda connector 6, first drain pipe 7, connecting bend 8, and second drain pipe 9 without being obstructed by the ball valve 5. Finally, the sewage is discharged from the machine through the opening of the second drain pipe 9 or the diversion pipe 10. This design addresses the lifespan issues of the ball valve 5 and solenoid valve in existing similar products, ensuring controllable overall sewage flow rate during discharge. The addition of the siphon mechanism 2 improves the overall lifespan of the ball valve 5 and solenoid valve, reducing after-sales maintenance issues for the fully automatic floor scrubber. The first flange 11 and the second flange 12 facilitate connection to other external sewage pipes, enhancing practicality.
[0022] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.
Claims
1. An automatic sewage discharge mechanism, comprising a sewage tank (1), characterized in that: The sewage tank (1) is equipped with a siphon mechanism (2). The output end of the siphon mechanism (2) passes through the bottom end of the sewage tank (1) and is fixed with a hose (3). The bottom end of the hose (3) is equipped with a first pagoda connector (4). The bottom end of the first pagoda connector (4) is equipped with a ball valve (5). The bottom end of the ball valve (5) is equipped with a second pagoda connector (6). The bottom end of the second pagoda connector (6) is equipped with a first drain pipe (7).
2. The automatic sewage discharge mechanism according to claim 1, characterized in that: The end of the first drain pipe (7) away from the second pagoda joint (6) is fixed with a connecting bend (8) by bolts, and the end of the connecting bend (8) away from the first drain pipe (7) is fixed with a second drain pipe (9) by bolts.
3. The automatic sewage discharge mechanism according to claim 2, characterized in that: A diversion pipe (10) is fixed on the outer wall of the second sewage pipe (9).
4. The automatic sewage discharge mechanism according to claim 3, characterized in that: The first flange (11) is fixed to the outer wall of the end of the diversion pipe (10) away from the second sewage pipe (9).
5. An automatic sewage discharge mechanism according to claim 2, characterized in that: The bottom outer wall of the second sewage pipe (9) is fixed with a second flange (12).