Drainage stopper
Patent Information
- Application Number
- CN202522724315.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-23
- Publication Date
- 2026-10-30
- Estimated Expiration
- 2035-12-23
AI Technical Summary
[0004]为了同时解决污水回流和细菌向回传播的问题,本申请提供一种排水用阻断器
1.有效同时解决了污水回流和细菌向回传播的问题;
Smart Images

Figure CN224920031U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of wastewater blocking, and in particular to a drain blocking device. Background Technology
[0002] In the pharmaceutical industry, the quality and safety of drug manufacturing are paramount. With the continuous development of pharmaceutical technology, various pharmaceutical-related equipment is also constantly being updated and improved. The proper functioning of this equipment has a crucial impact on drug production efficiency and quality. Simultaneously, the issue of wastewater discharge generated during the pharmaceutical process is receiving increasing attention. A rational and effective wastewater discharge system can ensure the hygiene and safety of the pharmaceutical environment, preventing adverse effects on drug quality due to wastewater problems, and is of great significance to the sustainable development of the entire pharmaceutical industry.
[0003] Regarding wastewater discharge from pharmaceutical equipment, conventional methods have traditionally been employed to address this issue. One common approach is to use simple pipeline connections to directly transport wastewater from the equipment to external treatment facilities. This method merely transfers the wastewater without effectively preventing backflow and bacterial transmission. Another method involves installing check valves on the discharge pipes, attempting to prevent backflow through their one-way flow characteristic. However, bacteria can still propagate back along the wastewater flow path. Therefore, this approach fails to effectively address both wastewater backflow and bacterial transmission simultaneously. Utility Model Content
[0004] To simultaneously address the issues of sewage backflow and bacterial backflow, this application provides a drainage blocker.
[0005] The drainage blocker provided in this application adopts the following technical solution: A drainage blocker includes a closed pipe body, with an inlet pipe and an outlet pipe fixed to and connected to the side wall of the pipe body. The height of the connection between the inlet pipe and the pipe body is higher than the height of the connection between the outlet pipe and the pipe body. A partition is fixedly connected inside the pipe body, and there is a gap between the bottom end of the partition and the inner bottom wall of the pipe body for water to flow through.
[0006] By adopting the above technical solution, sewage enters the pipe body through the inlet pipe. Because the height of the connection between the inlet pipe and the pipe body is higher than that of the connection between the outlet pipe and the pipe body, and there is a gap between the bottom of the baffle and the bottom wall of the pipe body for water flow, the drainage creates a certain water level within the pipe body. The pressure generated by the water level difference allows the sewage to be smoothly discharged from the outlet pipe. When the inlet pipe stops pumping water into the pipe body, the outlet pipe discharges water under water pressure, and the water level inside the pipe gradually falls below the connection between the inlet pipe and the pipe body. At this point, sewage is difficult to flow back, and bacteria are also difficult to flow back to the higher outlet pipe with the sewage, effectively solving both the problems of sewage backflow and bacterial backflow.
[0007] Preferably, the height of the bottom of the partition is lower than the height of the connection between the discharge pipe and the pipe body.
[0008] By adopting the above technical solution, since the height of the bottom of the baffle is lower than the height of the connection between the discharge pipe and the pipe body, a certain amount of water will be stored below the baffle inside the pipe body, and this water can form a water seal. The water seal can effectively block odors and harmful gases in the drainage pipe and limit their backflow through the pipe body.
[0009] Preferably, one end of the discharge pipe is inserted into the pipe body and is provided with a baffle for sealing the discharge pipe, and the upper end of the baffle is hinged to the upper end of the discharge pipe.
[0010] By adopting the above technical solution, when drainage flows into the inlet pipe, the impact force of the water flow will cause the baffle hinged to the upper end of the inlet pipe to rotate and open around the hinge, allowing water to smoothly enter the pipe body; when drainage stops and there is no water flow impact force, the baffle falls back under its own gravity, blocking the inlet pipe, which can limit the backflow of odors, sewage, bacteria and other substances in the pipe body back into the inlet pipe, and at the same time, it can also limit foreign objects from entering the drainage system from the pipe body through the inlet pipe in reverse.
[0011] Preferably, a sealing ring is fitted and fixed to the outer side of the baffle.
[0012] By adopting the above technical solution and attaching a fixed sealing ring to the outside of the baffle, the backflow of sewage, bacteria, etc. can be further restricted.
[0013] Preferably, the upper surface of the pipe body is provided with an inspection port, and a cap is threadedly connected to the inspection port to seal it.
[0014] By adopting the above technical solution, it is convenient to inspect and maintain the inside of the pipe, while the cover can effectively block the inspection port.
[0015] Preferably, the cover has a transparent window in the middle.
[0016] By adopting the above technical solution, a transparent window is provided in the middle of the cap, which makes it easy to observe the internal condition of the tube.
[0017] Preferably, an elastic ring is fixedly connected to the inner top wall of the cover, and a sealing strip is fixedly connected to the inner ring of the elastic ring, with the sealing strip tightly abutting the upper surface of the partition.
[0018] By adopting the above technical solutions, the elastic ring can seal the gap between the cover and the pipe body, limiting water leakage from the connection between the cover and the pipe body; the sealing strip can seal the gap between the partition and the cover, further enhancing the sealing performance of the entire drainage interruptor and limiting water seepage from the contact point between the partition and the cover.
[0019] Preferably, the side wall of the cover is provided with several disassembly grooves.
[0020] By adopting the above technical solution, it is easy to disassemble and assemble the cap, and convenient to inspect the inside of the pipe.
[0021] In summary, this application includes at least one of the following beneficial technical effects: 1. Effectively solves both the problems of sewage backflow and bacterial backflow simultaneously; 2. The baffle can prevent odors, sewage, bacteria and other substances in the pipe from flowing back into the discharge pipe, and at the same time, it can also prevent foreign objects from entering the drainage system from the pipe through the discharge pipe. 3. Facilitates inspection and maintenance of the pipe's interior. Attached Figure Description
[0022] Figure 1 This is a schematic diagram illustrating the overall structure of the blocker in an embodiment of this application.
[0023] Figure 2 This is a cross-sectional view illustrating the internal structure of the blocker in an embodiment of this application.
[0024] Explanation of reference numerals in the attached drawings: 1. Pipe body; 11. Inspection port; 2. Inlet pipe; 21. Baffle; 22. Sealing ring; 3. Outlet pipe; 4. Partition; 5. Cover; 51. Transparent window; 52. Disassembly groove; 6. Elastic ring; 61. Sealing strip. Detailed Implementation
[0025] The following is in conjunction with the appendix Figures 1-2 This application will be described in further detail.
[0026] This application discloses a drainage blocker. (Refer to...) Figure 1 and Figure 2 The drainage interruptor includes a closed pipe body 1, an inlet pipe 2, an outlet pipe 3, and a baffle 4. The inlet pipe 2 and outlet pipe 3 are fixedly connected to the side wall of the pipe body 1, and the height of the connection between the inlet pipe 2 and the pipe body 1 is higher than the height of the connection between the outlet pipe 3 and the pipe body 1. A baffle 4, dividing the interior of the pipe body 1 into two parts, is fixedly connected inside the pipe body 1. A gap exists between the bottom end of the baffle 4 and the inner bottom wall of the pipe body 1 for water flow. The baffle 4 is located between the inlet pipe 2 and the outlet pipe 3.
[0027] By utilizing the height difference between the inlet pipe 2 and the outlet pipe 3 at their respective connections to the pipe body 1, and the installation of the baffle 4, a specific flow path is formed within the pipe body 1, effectively preventing sewage backflow. The inlet pipe 2 is used to introduce sewage into the pipe body 1, while the outlet pipe 3 is used to discharge water from the pipe body 1 into the pipe body 1. The inlet pipe 2 and the outlet pipe 3 can be connected to the pipe body 1 by welding, heat fusion, or other methods to ensure a tight seal. Both the inlet pipe 2 and the outlet pipe 3 are connected to the outlet pipe 3 in the drainage system via clamps.
[0028] The baffle 4 can be made of the same metal material as the pipe body 1 and is fixed inside the pipe body 1 by welding, bolting, or other methods. The gap between the bottom end of the baffle 4 and the bottom wall of the pipe body 1 is the channel for water flow. The height of the bottom end of the baffle 4 is lower than the height of the connection between the discharge pipe 3 and the pipe body 1, which can further enhance the drainage blocking effect. When the water level in the pipe body 1 rises to a certain height, due to the obstruction of the baffle 4, the water can only flow through the gap at the bottom end of the baffle 4 to the discharge pipe 3, thereby effectively limiting the backflow of sewage.
[0029] Reference Figure 1 and Figure 2 One end of the discharge pipe 2 is inserted into the pipe body 1. The pipe body 1 is provided with a baffle 21 for sealing the discharge pipe 2. The upper end of the baffle 21 is hinged to the upper end of the discharge pipe 2. The baffle 21 can be made of plastic, metal or other materials. Its shape is usually circular and is adapted to the opening of the discharge pipe 2.
[0030] When water flows into the inlet pipe 2, the pressure of the water flow will push the baffle 21 to open, allowing water to flow into the pipe body 1; when there is no water flow, the baffle 21 will close under its own weight or other external forces, blocking the inlet pipe 2 and restricting the backflow of sewage and bacteria.
[0031] Reference Figure 1 and Figure 2 A sealing ring 22 is fixedly fitted to the outer side of the baffle 21. The sealing ring 22 can be made of elastic materials such as rubber, and its function is to enhance the sealing between the baffle 21 and the discharge pipe 2.
[0032] An inspection port 11 is provided on the upper surface of the pipe body 1, and a cover 5 is connected to the inspection port 11. The cover 5 covers the upper end of the pipe body 1 and seals the inspection port 11. The inspection port 11 facilitates the inspection and cleaning of the inside of the pipe body 1. The cover 5 can be made of metal and is tightly fitted with the inspection port 11 by means of a threaded connection to ensure the airtightness of the pipe body 1.
[0033] Reference Figure 1 and Figure 2 The cover 5 has a transparent window 51 in the middle, which can be made of materials such as glass or transparent plastic. Through the transparent window 51, staff can observe the inside of the tube 1 without opening the cover 5, and promptly identify and deal with any problems.
[0034] An elastic ring 6 is fixedly connected to the inner top wall of the cover 5, and a sealing strip 61 is fixedly connected to the inner ring of the elastic ring 6. When the cover 5 is fastened to the pipe body 1, the elastic ring 6 is tightly against the inner side wall of the pipe body 1, and the sealing strip 61 is tightly against the upper surface of the partition 4.
[0035] The elastic ring 6 serves to buffer the pressure between the cover 5 and the partition 4, while also enhancing the sealing performance. The sealing strip 61 can further improve the sealing effect between the cover 5 and the partition 4.
[0036] Reference Figure 1 and Figure 2 The side wall of the cover 5 is provided with several disassembly grooves 52, which are evenly distributed around the periphery of the cover 5. The disassembly grooves 52 facilitate the use of tools by staff to disassemble and assemble the cover 5, thereby improving work efficiency.
[0037] The implementation principle of a drainage blocker according to an embodiment of this application is as follows: The drainage blocker, through the rational arrangement of the pipe body 1, inlet pipe 2, outlet pipe 3, and baffle 4, utilizes the height difference and baffle 4 to change the water flow path, effectively blocking drainage while limiting the backflow of sewage and bacteria. The baffle 21 and sealing ring 22 further enhance the drainage blocking effect, while the design of the inspection port 11 and cover 5 facilitates the inspection and maintenance of the inside of the pipe body 1, improving the reliability and practicality of the drainage system.
[0038] 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 drainage blocker, characterized in that: The tube includes a closed pipe (1), the side wall of which is fixed and connected to an inlet pipe (2) and an outlet pipe (3). The height of the connection between the inlet pipe (2) and the pipe (1) is higher than the height of the connection between the outlet pipe (3) and the pipe (1). A partition (4) is fixedly connected inside the pipe (1), and there is a gap between the bottom end of the partition (4) and the inner bottom wall of the pipe (1) for water to flow through.
2. A drainage blocker according to claim 1, characterized in that: The bottom of the partition (4) is lower than the height of the connection between the discharge pipe (3) and the pipe body (1).
3. A drainage blocker according to claim 2, characterized in that: One end of the discharge pipe (2) is inserted into the pipe body (1) and is provided with a baffle (21) for sealing the discharge pipe (2). The upper end of the baffle (21) is hinged to the upper end of the discharge pipe (2).
4. A drainage blocker according to claim 3, characterized in that: A sealing ring (22) is fixedly fitted onto the outer side of the baffle (21).
5. A drainage blocker according to claim 1, characterized in that: The upper surface of the pipe body (1) is provided with an inspection port (11), and a cap (5) is threadedly connected to the inspection port (11) to seal the inspection port (11).
6. A drainage blocker according to claim 5, characterized in that: The cover (5) has a transparent window (51) in the middle.
7. A drainage blocker according to claim 5, characterized in that: An elastic ring (6) is fixedly connected to the inner top wall of the cover (5), and a sealing strip (61) is fixedly connected to the inner ring of the elastic ring (6). The sealing strip (61) is tightly abutted against the upper surface of the partition (4).
8. A drainage blocker according to claim 5, characterized in that: The side wall of the cover (5) is provided with several disassembly grooves (52).