Assembly type floor drain assembly
By designing a modular floor drain assembly and utilizing the automatic adjustment function of the water storage tank and sealing components, the problem of odor prevention in traditional floor drains when they are not used for a long time is solved, achieving automatic sealing and drainage, and improving the performance of the floor drain.
Patent Information
- Application Number
- CN202511287427.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-10
- Publication Date
- 2025-11-28
AI Technical Summary
Traditional floor drain structures lack an auxiliary water supply system, causing water to accumulate and evaporate inside the U-shaped pipe when it is not used for a long time, thus losing its odor-proof effect.
An assembled floor drain assembly was designed, comprising a water storage tank, a sealing component, an auxiliary positioning component, and a cleaning component. The radial movement of the water storage tank enables automatic adjustment of drainage and sealing, while the combination of a filter screen and a rubber ring improves the sealing performance.
It automatically maintains a seal when not in use for extended periods to prevent odor leakage, and also features automatic drainage and cleaning functions, thus extending the lifespan and odor-proofing effect of the floor drain.
Smart Images

Figure CN121024178A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the field of floor drain, in particular to an assembled floor drain assembly. BACKGROUND
[0002] Floor drain is an important interface connecting drainage pipe system and indoor floor, as an important component of drainage system in residence, its performance directly affects the quality of indoor air, and is very important for odor control in bathroom.
[0003] For the traditional floor drain structure, it includes a pipe body for drainage, which can be directly fixed in the hole reserved in the building structure, and the pipe body has a filter screen inside, and a cover plate is provided at the opening, both the cover plate and the filter screen have a dirt filtering effect. For the deodorization treatment of the floor drain structure, water seal is generally used, that is, the other end of the pipe body is connected to a U-shaped pipe, which has a water collecting effect, so that the pipe structure is in a closed state, thereby preventing gas from entering the room through the floor drain.
[0004] However, there are still the following defects and deficiencies in the implementation and application process: The traditional floor drain structure does not have an auxiliary water supply system, that is, (taking a bathroom as an example), water can only be injected into the U-shaped pipe for sealing when bathing; if the user is away for a long time, the accumulated water in the U-shaped pipe will gradually decrease due to evaporation, and eventually the amount of accumulated water will not be enough to seal the pipe, thereby losing its deodorizing effect.
[0005] Therefore, it is necessary to provide a new assembled floor drain assembly to solve the above technical problems. SUMMARY
[0006] To solve the above technical problems, the present application provides an assembled floor drain assembly.
[0007] The assembled floor drain assembly provided by the present application comprises a positioning plate, the positioning plate has a through hole, a filter cover plate is embedded on the positioning plate to close the through hole, a flow discharge cylinder is welded and fixed at the lower end, a flow discharge pipe is welded and fixed at the lower end of the flow discharge cylinder, and a filter screen is also placed in the flow discharge cylinder, and further comprising: A plugging assembly is installed in the flow discharge pipe, comprising a water storage cylinder concentrically arranged with the flow discharge pipe and radially movable, the circumferential outer wall of the water storage cylinder has a flow discharge hole, and the lower end is welded and fixed with a sealing plate closing the opening at the lower end of the flow discharge pipe; An auxiliary positioning assembly is fixed in the flow discharge pipe, comprising a limiting ring frame composed of an inner ring frame and a locking ring frame, the limiting ring frame is sleeved outside the water storage cylinder, and a plurality of rolling balls which can contact the circumferential outer wall of the water storage cylinder and are in rolling connection with the circumferential outer wall are further arranged in the limiting ring frame; The cleaning assembly is installed on the sealing assembly, comprising a second positioning ring frame concentrically arranged inside the water storage cylinder, and a brush plate is fixedly bonded to the circumferential outer wall of the second positioning ring frame, the brush plate is in contact with the circumferential inner wall of the water storage cylinder, and the dirt on the circumferential inner wall of the water storage cylinder is scraped by the movement of the water storage cylinder.
[0008] Preferably, the drain pipe is divided into upper and lower two parts, the upper half part is cylindrical, and the lower half part is in the shape of a bucket, and the opening diameter of the lower end of the drain pipe is larger than that of the upper end.
[0009] Preferably, the filter screen is in the shape of a semisphere with the center being convex.
[0010] Preferably, the water storage cylinder is in the shape of a cylinder, the upper end of the water storage cylinder has an opening for water inlet, and the lower end is located inside the pipe body of the lower half part of the drain pipe, the opening end of the water storage cylinder is moved between the upper and lower two parts of the drain pipe by moving radially relative to the drain pipe, and when the opening end of the water storage cylinder is located in the lower half part of the drain pipe, a gap for water drainage is formed between the opening end of the drain pipe and the water storage cylinder; When the water storage cylinder is in the highest position, the opening end of the water storage cylinder is located in the upper half part of the drain pipe, and the drain pipe is closed by the sealing plate. When the water storage cylinder is in a non-highest position, the sealing plate is moved below the drain pipe, and the lower end opening of the drain pipe is in an open state.
[0011] Preferably, a rubber ring which can be in contact with the stop disc is fixedly bonded to the lower end of the drain pipe.
[0012] Preferably, a first positioning ring frame is fixedly welded to the inner wall of the pipe body of the upper half part of the drain pipe and located close to the middle part of the drain pipe, a mounting ring is screw-fixed to the first positioning ring frame, a first cross-shaped frame is fixedly welded to the circumferential inner wall of the mounting ring, a positioning rod which is concentrically arranged is fixed to the center of the first cross-shaped frame by a nut, a stop disc is fixedly welded to the lower end of the positioning rod, and a spring is sleeved on the positioning rod and abuts against the stop disc at the lower end. A second cross-shaped frame is fixedly welded to the circumferential inner wall of the water storage cylinder and located close to the upper end opening, the positioning rod also passes through the second cross-shaped frame and is in sliding connection with the second cross-shaped frame, and the upper end of the spring abuts against the second cross-shaped frame.
[0013] Preferably, the auxiliary positioning assembly further comprises an outer ring frame, the outer ring frame is fixedly welded to the circumferential inner wall of the drain pipe and located close to the lower end opening, a plurality of connection plates which are arranged in a ring shape are integrally connected to the circumferential inner wall of the outer ring frame, and the inner ring frame is integrally connected to the other end of the connection plates, so that a water drainage opening is formed between the outer ring frame and the inner ring frame.
[0014] Preferably, the inner ring frame and the locking ring frame are fixed by screws. Hemispherical grooves are provided on the inner circumferential wall of the inner ring frame and the outer circumferential wall of the locking ring frame. The grooves in the two form a spherical groove. The groove on the locking ring frame extends through its inner circumferential wall, and the ball is embedded in the spherical groove.
[0015] Preferably, the cleaning component further includes multiple vertically arranged, ring-shaped connecting rods, one end of which is fixed to the first cross-shaped frame by a nut, and the other end extends into the water storage tank; The inner circumference of the second positioning ring frame is welded and fixed with mounting seats corresponding to the position and number of connecting rods, and the other end of the connecting rod is welded and fixed to the mounting seat.
[0016] Preferably, the brush plate is an annular rubber sheet.
[0017] Compared with related technologies, the prefabricated floor drain assembly provided by the present invention has the following beneficial effects: A water storage tank is installed inside the drain pipe. The outside of the water storage tank has a drain hole. When the water inflow exceeds the water outflow, its weight increases, causing it to move downward relative to the drain pipe. At this time, the sealing plate moves downward, opening the lower end of the drain pipe and enabling the device to drain normally. When the water inflow stops, the water inside the storage tank slowly drains out, and its weight gradually decreases, causing it to move upward relative to the drain pipe until the sealing plate closes the lower opening of the drain pipe, thus sealing the drain pipe and preventing odors. Attached Figure Description
[0018] Figure 1 A schematic diagram of a preferred embodiment of the assembled floor drain assembly provided by the present invention; Figure 2 As shown in this invention Figure 1 A structural diagram of the other side; Figure 3 This is a cross-sectional structural schematic diagram of the drain cylinder shown in this invention; Figure 4 This is a schematic diagram of the structure of the drain cylinder shown in this invention; Figure 5 This is a schematic diagram of the structure of the filter screen shown in this invention; Figure 6 As shown in this invention Figure 3 A partial structural diagram; Figure 7 This is a schematic diagram of the structure of the drain pipe in its closed state as shown in the present invention; Figure 8 This is a schematic diagram of the structure of the drain pipe in the open state as shown in the present invention. Figure 9This is a schematic diagram of the structure of the sealing component and the drain pipe connected in this invention; Figure 10 This is a schematic diagram of the sealing assembly shown in this invention; Figure 11 This is a schematic diagram of the auxiliary positioning component shown in the present invention. Figure 1 ; Figure 12 This is a schematic diagram of the auxiliary positioning component shown in the present invention. Figure 2 ; Figure 13 This is a schematic diagram of the cleaning component shown in the present invention.
[0019] The following are the labels in the diagram: 1. Positioning plate; 11. Filter cover; 12. Drain cylinder; 13. Drain pipe; 14. Filter screen; 15. Rubber ring; 2. Sealing assembly; 21. First positioning ring frame; 22. Mounting ring; 23. First cross-shaped frame; 24. Positioning rod; 25. Baffle plate; 26. Spring; 27. Water storage tank; 28. Second cross-shaped frame; 29. Sealing plate; 3. Auxiliary positioning components; 31. Outer ring frame; 32. Connecting plate; 33. Inner ring frame; 34. Locking ring frame; 35. Ball bearings; 4. Cleaning components; 41. Connecting rod; 42. Second positioning ring frame; 43. Mounting base; 44. Brush plate. Detailed Implementation
[0020] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.
[0021] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.
[0022] Please see Figures 1 to 13 The present invention provides a prefabricated floor drain assembly, which includes a floor drain assembly, a sealing assembly 2, an auxiliary positioning assembly 3, and a cleaning assembly 4.
[0023] For floor drain components; Please see Figures 1 to 5 The floor drain assembly includes a positioning plate 1 with a through hole, a filter cover plate 11 that closes the through hole is embedded in the positioning plate 1, a drain cylinder 12 is welded and fixed at the lower end, a drain pipe 13 is welded and fixed at the lower end of the drain cylinder 12, a filter screen 14 is placed inside the drain cylinder 12, and a rubber ring 15 that can contact the baffle plate 25 is glued to the lower end of the drain pipe 13. The drain pipe 13 is divided into two parts, the upper part is cylindrical and the lower part is funnel-shaped. The diameter of the lower opening of the drain pipe 13 is larger than the diameter of the upper opening. The center of the filter screen 14 is a convex hemispherical shape.
[0024] It should be noted that: in the floor drain assembly, the positioning plate 1 and the drain cylinder 12 form the basic structure. The positioning plate 1 has a through hole, which allows water to enter the interior of the drain cylinder 12. At the same time, the upper end of the positioning plate 1 has a filter cover plate 11 covering the through hole. The drain cylinder 12 is also equipped with a filter screen 14 to achieve multi-stage filtration. At the same time, the lower end of the drain cylinder 12 is equipped with a drain pipe 13, which serves as the installation base for the drain pipe 13 sealing assembly 2 and the auxiliary positioning assembly 3. The filter screen 14 has a convex hemispherical shape in the middle. Therefore, after dirt falls onto it, it tends to slide down the curved surface, which has a certain anti-clogging effect, improves its filter life and reduces the frequency of cleaning.
[0025] For plugging component 2; Please see Figures 7 to 10 The sealing component 2 includes a first positioning ring frame 21 welded and fixed to the inner wall of the upper half of the drain pipe 13, near the middle of the drain pipe 13. A mounting ring 22 is fixed to the first positioning ring frame 21 with screws. A first cross-shaped frame 23 is welded and fixed to the inner wall of the mounting ring 22. A positioning rod 24 is concentrically fixed to the center of the first cross-shaped frame 23 by a nut. A baffle 25 is welded and fixed to the lower end of the positioning rod 24. A spring 26 is also sleeved on the positioning rod 24. The lower end of the spring 26 abuts against the baffle 25. Inside the drain pipe 13, there is a concentrically arranged, radially movable water storage cylinder 27. The outer circumference of the water storage cylinder 27 has a drain hole. The water storage cylinder 27 is cylindrical, with an inlet at the upper end and the lower end located inside the lower half of the drain pipe 13. A second cross-shaped frame 28 is welded and fixed on the inner circumference of the water storage cylinder 27 near the upper opening. The positioning rod 24 passes through the second cross-shaped frame 28 and is slidably connected to it. The upper end of the spring 26 abuts against the second cross-shaped frame 28. A sealing plate 29 that can close the lower opening of the drain pipe 13 is also fixed at the lower end of the water storage cylinder 27. The water storage cylinder 27 moves its open end between the upper and lower parts of the drain pipe 13 by radial movement relative to the drain pipe 13, and when its open end is located in the lower half of the drain pipe 13, a gap for drainage is formed between the open end of the drain pipe 13 and the water storage cylinder 27. When the water storage tank 27 is at its highest position, its upper opening is located in the upper half of the drain pipe 13, and the lower opening of the drain pipe 13 is sealed by the sealing plate 29. When the water storage tank 27 is not in the highest position, the sealing plate 29 moves to below the drain pipe 13, so that the lower opening of the drain pipe 13 is in the open state.
[0026] It should be noted that: for the sealing component 2, a first cross-shaped frame 23 is provided on the mounting ring 22, and a positioning rod 24 is provided on the first cross-shaped frame 23. A second cross-shaped frame 28 is provided inside the water storage cylinder 27. The second cross-shaped frame 28 is slidably connected to the positioning rod 24. A spring 26 is also provided on the positioning rod 24 to support the second cross-shaped frame 28, so that the water storage cylinder 27 can move axially relative to the drain pipe 13. The water storage cylinder 27 has an opening at its upper end, allowing sewage to enter the cylinder. The circumferential side wall of the cylinder also has drainage holes, through which sewage can be discharged. When the inflow of water into the cylinder is greater than the outflow, the weight of the cylinder gradually increases, overcoming the elastic force of the spring 26 and causing it to move downwards until its upper opening reaches the lower half of the drain pipe 13. Because this part is funnel-shaped (smaller at the top, larger at the bottom), a larger drainage gap is formed between its upper opening and the drain pipe 13, meeting normal drainage needs and preventing water accumulation in the bathroom due to insufficient drainage. Simultaneously, the downward movement of the water storage cylinder 27 causes the sealing plate 29 to move downwards as well. At this time, the lower end of the drain pipe 13 opens, allowing sewage to drain normally (the number and diameter of the drainage holes can be adjusted to control the drainage speed, ensuring that the inflow is greater than the outflow, thus allowing water to gradually accumulate inside the water storage cylinder 27 and causing it to move downwards). After the bath is finished, the water inside the water tank 27 is slowly discharged through the drain hole, and the weight of the water tank 27 gradually decreases. As a result, it slowly moves upward through the elastic force of the spring 26 until the sealing plate 29 seals the lower opening of the drain pipe 13, thereby achieving a seal and preventing odor. In addition, a rubber ring 15 is provided at the lower end of the drain pipe 13, which can improve the sealing effect of the sealing plate 29 on the lower outlet of the drain pipe 13. In the sealing assembly 2, the mounting ring 22 is detachably connected to the first positioning ring frame 21, and the positioning rod 24 is detachably connected to the first cross-shaped frame 23. This design facilitates disassembly and cleaning, and allows for targeted replacement of damaged structures.
[0027] For auxiliary positioning component 3; Please see Figures 11 to 12 The auxiliary positioning component 3 includes an outer ring frame 31, which is welded and fixed to the inner circumference of the drain pipe 13 and near the lower opening. Multiple ring-shaped connecting plates 32 are integrally connected to the inner circumference of the outer ring frame 31, and a limiting ring frame is fixed to the other end of the connecting plate 32. The limiting ring frame consists of an inner ring frame 33 and a locking ring frame 34, which are fixed by screws. Hemispherical grooves are provided on the inner circumference of the inner ring frame 33 and the outer circumference of the locking ring frame 34. The grooves in the two form a spherical groove, and a ball bearing 35 is embedded in the spherical groove. The groove on the locking ring frame 34 extends to its inner circumference, so that the ball bearing 35 can contact the outer circumference of the water storage cylinder 27.
[0028] It should be noted that the auxiliary positioning component 3 is mainly used to limit the water storage cylinder 27 and enhance its stability. The outer ring frame 31 and the inner ring frame 33 are connected by a connecting plate 32, which provides sufficient stability. At the same time, there is a gap between the two to allow for normal drainage. The inner ring frame contains ball bearings 35, which can contact the outer circumference of the water storage cylinder 27, thereby positioning the water storage cylinder 27. The ball bearings 35 and the water storage cylinder 27 are in a rolling connection, and the friction between them is very small, so it will not affect the movement of the water storage cylinder 27 itself. The limiting ring frame consists of an inner ring frame 33 and a locking ring frame 34, which are connected and fixed by screws. Therefore, it can be disassembled so that the internal ball bearings 35 can be cleaned and replaced.
[0029] For cleaning component 4; Please see Figure 13 The cleaning component 4 includes multiple vertically arranged and ring-shaped connecting rods 41. One end of the connecting rod 41 is fixed to the first cross-shaped frame 23 by a nut, and the other end extends into the water storage tank 27. The inner circumference of the second positioning ring frame 42 is welded and fixed with mounting seats 43 corresponding to the position and number of connecting rods 41. The other end of the connecting rod 41 is welded and fixed to the mounting seat 43. A brush plate 44 that can contact the inner wall of the water storage cylinder 27 is sleeved and fixed on the outer circumference of the second positioning ring frame 42. The brush plate 44 is an annular rubber sheet.
[0030] It should be noted that in the cleaning component 4, the connecting rod 41 and the second positioning ring frame 42 form a basic support structure. A brush plate 44 is provided on the outer circumference of the second positioning ring frame 42. The brush plate 44 can contact the inner wall of the water storage cylinder 27. That is, when the water storage cylinder 27 moves axially due to water accumulation or drainage, it also moves relative to the brush plate 44. During the movement of the water storage cylinder 27, the brush plate 44 can scrape the dirt on its inner wall and has a certain cleaning effect. The brush plate 44 is a thin rubber sheet, so it will not damage the water storage cylinder 27 when cleaning the inner wall of the water storage cylinder 27. One end of the connecting rod 41 passes through the first cross-shaped bracket 23 and is fixed by a nut, thus allowing the entire cleaning assembly 4 to be disassembled for targeted cleaning and maintenance.
[0031] The above are merely embodiments of the present invention and do not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.
Claims
1. An assembled floor drain assembly, comprising a positioning plate (1) having a through hole, a filter cover plate (11) embedded on the positioning plate (1) to close the through hole, a flow discharge cylinder (12) welded and fixed at the lower end of the positioning plate (1), a flow discharge pipe (13) welded and fixed at the lower end of the flow discharge cylinder (12), and a filter screen (14) placed inside the flow discharge cylinder (12), characterized in that, Also include: The plugging assembly (2) is installed inside the drain pipe (13), including the water storage cylinder (27) which is concentrically arranged and radially movable, the circumferential outer wall of the water storage cylinder (27) has a drain hole, and the lower end is welded with a sealing plate (29) which seals the lower end opening of the drain pipe (13); The auxiliary positioning assembly (3) is fixed inside the drain pipe (13), including a limiting ring composed of an inner ring frame (33) and a locking ring frame (34), the limiting ring is sleeved outside the water storage cylinder (27), and a plurality of rolling balls (35) which can contact the circumferential outer wall of the water storage cylinder (27) and are in rolling connection with the circumferential outer wall are arranged inside the limiting ring; The cleaning assembly (4) is installed on the plugging assembly (2), including a second positioning ring (42) which is concentrically arranged inside the water storage cylinder (27), the circumferential outer wall of the second positioning ring (42) is bonded with a brush plate (44), the brush plate (44) is in contact with the circumferential inner wall of the water storage cylinder (27), and the dirt on the circumferential inner wall of the water storage cylinder (27) is scraped by the movement of the water storage cylinder (27).
2. The assembled floor drain assembly of claim 1, wherein, The drain pipe (13) is divided into two parts, the upper half is cylindrical, and the lower half is in the shape of a bucket, and the diameter of the lower end opening of the drain pipe (13) is larger than that of the upper end opening.
3. The assembled floor drain assembly of claim 1, wherein, The center of the filter screen (14) is a convex hemispherical shape.
4. The assembled floor drain assembly of claim 1, wherein, The water storage cylinder (27) is cylindrical, the upper end has a water inlet opening, and the lower end is located inside the lower half of the drain pipe (13), the opening end of the water storage cylinder (27) moves between the upper and lower parts of the drain pipe (13) by moving radially relative to the drain pipe (13), and when the opening end of the water storage cylinder (27) is located in the lower half of the drain pipe (13), a gap for draining water is formed between the opening end of the drain pipe (13) and the water storage cylinder (27); When the water storage cylinder (27) is in the highest position, the upper end opening is located in the upper half of the drain pipe (13), and the sealing plate (29) seals the lower end opening of the drain pipe (13); When the water storage cylinder (27) is not in the highest position, the sealing plate (29) moves below the drain pipe (13), so that the lower end opening of the drain pipe (13) is in an open state.
5. The prefabricated floor drain assembly of claim 1, wherein, A rubber ring (15) which can contact the baffle disc (25) is bonded to the lower end of the drain pipe (13).
6. The prefabricated floor drain assembly of claim 1, wherein, A first positioning ring (21) is welded and fixed on the inner wall of the upper half of the drain pipe (13) near the middle part of the drain pipe (13), a mounting ring (22) is screwed on the first positioning ring (21), a first cross-shaped frame (23) is welded and fixed on the circumferential inner wall of the mounting ring (22), a positioning rod (24) which is concentrically arranged is fixed by a nut at the center of the first cross-shaped frame (23), a baffle disc (25) is welded and fixed on the lower end of the positioning rod (24), and a spring (26) is sleeved on the positioning rod (24), and the lower end of the spring (26) abuts against the baffle disc (25); A second cross-shaped frame (28) is welded and fixed on the circumferential inner wall of the water storage cylinder (27) near the upper end opening, the positioning rod (24) also passes through the second cross-shaped frame (28) and is in sliding connection with the second cross-shaped frame (28), and the upper end of the spring (26) abuts against the second cross-shaped frame (28).
7. The prefabricated floor drain assembly of claim 1, wherein, The auxiliary positioning assembly (3) further comprises an outer ring frame (31) welded and fixed on the circumferential inner wall of the drain pipe (13) near the lower end opening, a plurality of connecting plates (32) are integrally connected on the circumferential inner wall of the outer ring frame (31), and an inner ring frame (33) is integrally connected to the other end of the connecting plate (32), so that the outer ring frame (31) and the inner ring frame (33) form a water drainage opening.
8. The assembled floor drain assembly of claim 7, wherein, The inner ring frame (33) and the locking ring frame (34) are fixed by screws, hemispherical grooves are formed on the circumferential inner wall of the inner ring frame (33) and the circumferential outer wall of the locking ring frame (34), the grooves in the two form a spherical groove, and the groove on the locking ring frame (34) penetrates to the circumferential inner wall of the locking ring frame (34), and the ball (35) is embedded in the spherical groove.
9. The prefabricated floor drain assembly of claim 1, wherein, The cleaning assembly (4) further comprises a plurality of vertically arranged and annularly distributed connecting rods (41), one end of the connecting rod (41) is fixed on the first cross-shaped frame (23) by a nut, and the other end extends into the water storage cylinder (27). The circumferential inner wall of the second positioning ring frame (42) is welded and fixed with mounting seats (43) corresponding to the positions and numbers of the connecting rods (41), and the other end of the connecting rod (41) is welded and fixed on the mounting seat (43).
10. The prefabricated floor drain assembly of claim 8, wherein, The brush plate (44) is an annular rubber sheet.