Filtering stainless steel air-tight pot
Patent Information
- Application Number
- CN202522540889.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-29
- Publication Date
- 2026-10-30
- Estimated Expiration
- 2035-11-29
AI Technical Summary
[0003]现有的不锈钢隔气壶的核心问题在于过滤结构设计不合理,清洁与更换操作繁琐
1.通过底盖与壶体的螺纹连接及安装杆与定位销的滑动套设配合,仅需拧下底盖即可将安装杆连同圆形滤网整体取出,无需拆卸其他管路结构,能快速清除滤网上堆积的杂质,操作便捷且避免杂质长期残留导致的堵塞问题;同时,通过圆形滤网外周壁与塑料管内壁的紧密贴合设计,搭配安装杆顶端对应不锈钢入水管下端开口的布局,使水流流出后直接流经滤网,杜绝杂质从间隙侧漏,有效减少壶体及排水管路的堆积堵塞,保障排水顺畅;此外,通过圆形滤网与安装杆的可拆卸连接结构,当滤网磨损、老化时可单独更换,无需更换整个过滤机构或壶体,降低维护成本。
Smart Images

Figure CN224918548U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of drainage components, specifically a stainless steel filter jar. Background Technology
[0002] Sewage pipes are an indispensable infrastructure in daily life, and their normal operation directly affects the comfort of the living environment. Odor backflow can seriously affect indoor air quality and cause numerous problems for residents. Furthermore, the large amount of water used daily means that hair, debris, and other waste generated during washing and cleaning can easily flow into the pipes, further posing challenges to the sewage system.
[0003] The core problem with existing stainless steel air-tight filter containers lies in their unreasonable filter structure design, making cleaning and replacement cumbersome. Since they are often installed under bathroom sinks, the water discharged from the sink often contains impurities such as hair and shredded paper. Existing products require disassembling multiple pipes to remove the filter screen, making timely cleaning and replacement difficult for users. This causes impurities to easily accumulate in the filter structure, not only clogging the device and affecting water flow, thus interfering with the normal use of the sink, but also, due to the lack of effective barrier design in the pipe layout, allowing gas to easily flow back, resulting in unstable air-tight and odor-preventing effects, and failing to meet long-term reliable use requirements. Utility Model Content
[0004] To overcome the above-mentioned defects, this utility model provides a stainless steel filter air-tight container, which solves the problems existing in the prior art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a stainless steel air-tight filter kettle, comprising a kettle body, a bottom cover threadedly connected to the bottom of the kettle body, and a filter mechanism provided at the upper end of the bottom cover; a drain outlet is provided on the side wall of the kettle body, and a connecting pipe is connected to the drain outlet; a threaded cap one is threadedly connected to the end of the connecting pipe away from the kettle body, a drain branch pipe is fixedly embedded in the threaded cap one, and a socket joint is fixedly sleeved on the outer wall of the drain branch pipe away from the connecting pipe; a threaded cap two is fixedly connected to the upper end of the kettle body, a plastic tube is fixedly embedded in the threaded cap two, the inner wall of the plastic tube is provided with anti-slip texture, a stainless steel water inlet pipe is embedded in the plastic tube, and a threaded cap three is fixedly sleeved on the upper end of the outer peripheral wall of the stainless steel water inlet pipe, and a connecting joint is threadedly connected to the threaded cap three.
[0006] As a further embodiment of this utility model: the filtration mechanism includes two positioning pins fixedly connected to the upper end of the bottom cover, and each of the two positioning pins has a mounting rod slidably sleeved on its outer peripheral wall. The ends of the two mounting rods away from the positioning pins are detachably connected to a circular filter screen.
[0007] As a further embodiment of this utility model: the bottom of the mounting rod is provided with a connecting hole that is compatible with the positioning pin.
[0008] As a further embodiment of this utility model: the upper end of the mounting rod extends into the interior of the plastic tube, and its top end is located in the area below the stainless steel water inlet pipe, corresponding to the lower opening of the stainless steel water inlet pipe.
[0009] As a further embodiment of this utility model: the outer peripheral wall of the circular filter screen is attached to the inner wall of the plastic tube.
[0010] As a further embodiment of this utility model: the plastic tube extends vertically downwards, with its lower end extending to the area below the drain outlet and located directly above the bottom cover.
[0011] As a further embodiment of this utility model: an annular anti-blocking gasket is provided at the connection gap between the threaded cover and the connecting joint.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. Through the threaded connection between the bottom cover and the kettle body, and the sliding fit between the mounting rod and the positioning pin, the mounting rod and the circular filter screen can be removed as a whole simply by unscrewing the bottom cover. There is no need to disassemble other pipeline structures, which can quickly remove the impurities accumulated on the filter screen. The operation is convenient and avoids the clogging problem caused by long-term residue of impurities. At the same time, the tight fit design between the outer wall of the circular filter screen and the inner wall of the plastic tube, combined with the layout of the top of the mounting rod corresponding to the lower opening of the stainless steel water inlet pipe, allows water to flow directly through the filter screen after it flows out, preventing impurities from leaking from the gaps. This effectively reduces the accumulation and blockage of the kettle body and drain pipe, ensuring smooth drainage. In addition, the detachable connection structure between the circular filter screen and the mounting rod allows the filter screen to be replaced separately when it is worn or aged, without having to replace the entire filter mechanism or kettle body, reducing maintenance costs.
[0013] 2. The design of extending the plastic pipe vertically downwards to below the drain outlet and directly above the bottom cover not only provides a smooth channel for filtered wastewater but also reserves reasonable space for impurity deposition, further improving anti-clogging stability; at the same time, it can form an effective barrier structure to prevent gas backflow, play a role in gas isolation, and ensure the long-term reliable operation of the gas isolation and odor prevention function. Attached Figure Description
[0014] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the internal three-dimensional structure of the kettle body of this utility model; Figure 3 This is a three-dimensional exploded view of the present invention; Figure 4 for Figure 3 Enlarged view of point A in the middle; Figure 5 for Figure 3 Enlarged view of section B in the middle.
[0015] In the diagram: 1. Kettle body; 2. Bottom cover; 3. Drain outlet; 4. Connecting pipe; 5. Threaded cap one; 6. Drain branch pipe; 7. Socket connector; 8. Threaded cap two; 9. Plastic pipe; 10. Anti-slip texture; 11. Stainless steel water inlet pipe; 12. Threaded cap three; 13. Connecting connector; 14. Positioning pin; 15. Mounting rod; 16. Circular filter screen; 17. Annular anti-clogging pad. Detailed Implementation
[0016] The technical solution of this patent will be further described in detail below with reference to specific embodiments.
[0017] like Figure 1 - Figure 5 As shown, this utility model provides a technical solution: A stainless steel filter kettle includes a kettle body 1, a bottom cover 2 threadedly connected to the bottom of the kettle body 1, and a filter mechanism on the upper end of the bottom cover 2; a drain outlet 3 is opened on the side wall of the kettle body 1, and a connecting pipe 4 is connected to the drain outlet 3; a threaded cap 5 is threadedly connected to the end of the connecting pipe 4 away from the kettle body 1; a drain branch pipe 6 is fixedly embedded in the threaded cap 5; a socket joint 7 is fixedly sleeved on the outer wall of the end of the drain branch pipe 6 away from the connecting pipe 4; a threaded cap 8 is fixedly connected to the upper end of the kettle body 1; a plastic tube 9 is fixedly embedded in the threaded cap 8; the inner wall of the plastic tube 9 is provided with anti-slip texture 10; a stainless steel water inlet pipe 11 is embedded in the plastic tube 9; a threaded cap 12 is fixedly sleeved on the upper end of the outer peripheral wall of the stainless steel water inlet pipe 11; and a connecting joint 13 is threadedly connected to the threaded cap 12.
[0018] Specifically, in use, firstly, the bottom cover 2 is screwed tightly to the bottom of the kettle body 1. The bottom cover 2 not only seals the bottom of the kettle body 1 to prevent sewage leakage, but also serves as the supporting base for the filter mechanism, providing a stable installation reference for the filter components. The plastic tube 9 is fixedly connected to the upper end of the kettle body 1 through the threaded cap 8. The threaded cap 8 not only achieves precise positioning of the plastic tube 9, but also seals the opening at the upper end of the kettle body 1 to prevent gas leakage or sewage overflow. Then, the stainless steel water inlet pipe 11 is embedded into the plastic tube 9. The anti-slip texture 10 on the inner wall of the plastic tube 9 enhances the connection between the two. The fit is tight to prevent relative displacement caused by water flow impact; the stainless steel inlet pipe 11 is connected to the connector 13 through the threaded cap 3 12, and the annular anti-clogging gasket 17 is placed at the connection gap between the two. The connector 13 is directly connected to the drain outlet of the basin to complete the sealing assembly of the water inlet end; the connecting pipe 4 is connected to the drain branch pipe 6 through the threaded cap 1 5, and the outer wall of the drain branch pipe 6 is fitted with a fixed socket connector 7, which is connected to the main drain pipe of the bathroom to complete the drainage end assembly; finally, tighten all the threaded caps to ensure that the connection between the kettle body 1 and each pipe is sealed. Each pipe is precisely connected through a corresponding threaded cap (threaded cap 1 5, threaded cap 2 8, threaded cap 3 12). Threaded cap 2 8 serves as the core connection between the pot body 1 and the plastic pipe 9. Together with other threaded caps, it forms a complete flow channel of "basin drain outlet - connecting joint 13 - stainless steel inlet pipe 11 - plastic pipe 9 - pot body 1 - connecting pipe 4 - drain branch pipe 6 - main drain pipe". The socket-type connector 7 is compatible with main drain pipes of different diameters and has strong versatility. The plastic tube 9 and the pot body 1 are quickly and sealed by the threaded cap 8. Combined with other standardized threaded parts and socket connectors 7, assembly can be completed without complicated operations, which lowers the installation threshold and ensures a reliable seal at the connection, preventing leakage and gas leakage. The filtration mechanism includes two positioning pins 14 fixedly connected to the upper end of the bottom cover 2. Mounting rods 15 are slidably fitted onto the outer periphery of each positioning pin 14. A circular filter screen 16 is detachably connected to the end of each mounting rod 15 away from the positioning pins 14. A connection hole adapted to the positioning pins 14 is provided at the bottom of the mounting rod 15. The upper end of the mounting rod 15 extends into the interior of the plastic tube 9, with its top end positioned below the stainless steel water inlet pipe 11 and corresponding to the lower opening of the stainless steel water inlet pipe 11. The outer periphery of the circular filter screen 16 is in contact with the inner wall of the plastic tube 9. Specifically, wastewater containing impurities flows in through connector 13 and stainless steel inlet pipe 11. The upper end of mounting rod 15 extends into the plastic pipe 9, with its top end corresponding to the lower opening of stainless steel inlet pipe 11, precisely guiding the water flow to circular filter screen 16. The outer circumference of circular filter screen 16 fits tightly against the inner wall of plastic pipe 9, comprehensively intercepting impurities such as hair and shredded paper, preventing impurities from entering subsequent pipelines. In the filtration mechanism, the positioning pin 14 at the upper end of bottom cover 2 slides and fits into the connecting hole at the bottom of mounting rod 15, achieving precise positioning and stable support for mounting rod 15. Mounting rod 15 carries circular filter screen 16, ensuring it is in the necessary path of water flow. Circular filter screen 16 and mounting rod 15 are detachably connected for easy maintenance. When cleaning or replacing the filter screen, simply unscrew bottom cover 2, separating positioning pin 14 from mounting rod 15. Mounting rod 15 and circular filter screen 16 can be directly removed, impurities cleaned, positioning pin 14 put back on, and bottom cover 2 tightened to restore use. When the filter screen is worn or aged, it can be replaced separately without replacing the entire filtration mechanism or kettle body 1. The engagement of the positioning pin 14 with the connecting hole ensures stable installation of the filter mechanism and enables quick assembly and disassembly; the fit design between the filter screen and the plastic tube 9 prevents side leakage of impurities, and the precise water flow guidance improves filtration efficiency. With the coordinated design of the bottom cover 2, positioning pin 14, and mounting rod 15, the filter mechanism can be quickly removed as a whole, making cleaning and replacement more convenient, and replacing the filter screen separately reduces maintenance costs. The plastic tube 9 extends vertically downwards, with its lower end extending to the area below the drain outlet 3 and directly above the bottom cover 2; Specifically, the plastic tube 9 extends vertically downward to below the drain outlet 3 and directly above the bottom cover 2, with its end located in the internal cavity of the kettle body 1. After the sewage flows out through the stainless steel inlet pipe 11, it is smoothly introduced into the kettle body 1 through the plastic tube 9. As the sewage continues to be injected, the liquid level in the kettle body 1 gradually rises. When the liquid level reaches the height of the drain outlet 3, it overflows from the drain outlet 3 and is discharged into the main pipe through the connecting pipe 4 and the drain branch pipe 6. An annular anti-blocking gasket 17 is provided at the connection gap between the threaded cap 12 and the connecting joint 13; Specifically, the annular anti-clogging gasket 17 works in conjunction with the threaded cap 12 and the connecting joint 13 to achieve the dual functions of "sealing + anti-clogging" to prevent sewage from leaking from the gaps and avoid polluting the space under the sink. The working principle of this utility model is as follows: First, wastewater flows into the connector 13 through the basin drain outlet. After connecting with the stainless steel water inlet pipe 11 through the threaded cap 12, it is precisely introduced into the plastic pipe 9. The anti-slip texture 10 on the inner wall of the plastic pipe 9 can enhance the stability of the fit with the stainless steel water inlet pipe 11, avoid water flow impact causing relative displacement between the two, and ensure accurate water flow guidance. Secondly, the water flows vertically downward along the plastic pipe 9, and is guided by the top of the mounting rod 15, and flows directly through the circular filter screen 16. The outer wall of the filter screen is tightly attached to the inner wall of the plastic pipe 9, with no gaps or side leakage, and completely intercepts impurities such as hair and paper scraps in the water, preventing impurities from entering the inside of the kettle body 1 from the source. Secondly, the filtered clean water is smoothly injected into the pot body 1 through the end of the plastic tube 9. As the wastewater is continuously introduced, the liquid level in the pot body 1 gradually rises. Because the plastic tube 9 extends to below the drain outlet 3, it can limit the minimum water level in the pot body 1, ensuring that sufficient water is always retained to form a reliable water seal. Subsequently, when the liquid level in the kettle body 1 rises to the height of the drain outlet 3, the clean water naturally overflows to the drain outlet 3, and is discharged into the main drain pipe of the bathroom through the drain branch pipe 6 connected by the connecting pipe 4 and the threaded cap 5, achieving smooth drainage without stagnation. Finally, the water remaining inside the vessel 1 and the vertically extending plastic tube 9 form a double air barrier, blocking the backflow path of sewer gas. At the same time, the sealing effect of the threaded cap 8, the bottom cap 2, and the annular anti-clogging gasket 17 prevents water from overflowing or gas from leaking, ensuring the continuous and reliable operation of the air barrier and odor prevention function.
[0019] The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.
Claims
1. A stainless steel air-tight filter pitcher, characterized in that, The device includes a kettle body (1), a bottom cover (2) is threaded to the bottom of the kettle body (1), and a filter mechanism is provided on the upper end of the bottom cover (2); a drain outlet (3) is provided on the side wall of the kettle body (1), a connecting pipe (4) is connected to the drain outlet (3), a threaded cap (5) is threaded to the end of the connecting pipe (4) away from the kettle body (1), a drain branch pipe (6) is fixedly embedded in the threaded cap (5), and a socket joint (7) is fixedly sleeved on the outer wall of the end of the drain branch pipe (6) away from the connecting pipe (4); a threaded cap (8) is fixedly connected to the upper end of the kettle body (1), a plastic tube (9) is fixedly embedded in the threaded cap (8), an anti-slip texture (10) is provided on the inner wall of the plastic tube (9), a stainless steel water inlet pipe (11) is embedded in the plastic tube (9), a threaded cap (12) is fixedly sleeved on the upper end of the outer peripheral wall of the stainless steel water inlet pipe (11), and a connecting joint (13) is threaded to the threaded cap (12).
2. The stainless steel filter pitcher according to claim 1, characterized in that: The filtration mechanism includes two positioning pins (14) fixedly connected to the upper end of the bottom cover (2). The outer peripheral walls of the two positioning pins (14) are slidably fitted with mounting rods (15). The ends of the two mounting rods (15) away from the positioning pins (14) are detachably connected to a circular filter screen (16).
3. The stainless steel filter pitcher according to claim 2, characterized in that: The bottom of the mounting rod (15) has a connecting hole that matches the positioning pin (14).
4. The stainless steel filter pitcher according to claim 2, characterized in that: The upper end of the mounting rod (15) extends into the interior of the plastic tube (9), with its top end located in the area below the stainless steel water inlet pipe (11) and corresponding to the lower opening of the stainless steel water inlet pipe (11).
5. The stainless steel filter pitcher according to claim 2, characterized in that: The outer peripheral wall of the circular filter (16) is attached to the inner wall of the plastic tube (9).
6. The stainless steel filter pitcher according to claim 1, characterized in that: The plastic tube (9) extends vertically downwards, with its lower end extending to the area below the drain outlet (3) and directly above the bottom cover (2).
7. The stainless steel filter pitcher according to claim 1, characterized in that: An annular anti-blocking gasket (17) is provided at the connection gap between the threaded cap (12) and the connecting joint (13).