Eccentric floor drain
By employing a double-eccentric design for the base, connecting plate, and fasteners, along with a fixed sealing ring, the problem of the sealing ring shifting in the eccentric drain is solved, achieving better sealing performance and adaptability, and preventing sewer wastewater and odor from seeping out.
Patent Information
- Application Number
- CN202511859624.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-10
- Publication Date
- 2026-02-24
AI Technical Summary
When adjusting the position of an existing eccentric floor drain, the sealing ring is prone to twisting and shifting, causing sewage wastewater and odors to seep out onto the ground.
The base, first connecting plate and second connecting plate are double eccentric design. Combined with detachable fasteners and fixed sealing rings, the sealing rings are ensured to be free from displacement due to force. The sealing effect is enhanced by graded filtration through annular positioning grooves and filter covers.
It effectively prevents the sealing ring from shifting during adjustment, ensuring the seal between the floor drain and the sewer, preventing wastewater and odor from seeping out, adapting to different sewer locations, and enhancing the applicability of the floor drain.
Smart Images
Figure CN121556571A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of floor drain technology, and in particular to an eccentric floor drain. Background Technology
[0002] Floor drains are an important interface connecting the sewer system to the indoor floor. As a crucial component of the drainage system in a residence, their performance directly affects indoor air quality and is very important for controlling odors in the bathroom.
[0003] During the renovation of old houses, due to limitations in space and drainage layout during the early design, the drainage pipes are not necessarily located in the center of the installation groove on the ground. Currently, the drain core is located in the center of the drain, leading to misalignment between the drain core and the drainage pipe during installation. The industry currently uses eccentric drains to solve this problem by offsetting the drain core. Eccentric drains are assembled from multiple parts screwed together, with sealing rings at the screw joints. However, when adjusting the position of the drain core, the sealing rings can easily twist and shift during the movement of the multiple parts, creating gaps. This allows wastewater and odors from the sewer to seep into the ground through these gaps. Summary of the Invention
[0004] In order to overcome the shortcomings of the existing technology, the present invention provides an eccentric floor drain.
[0005] The technical solution adopted by this invention to solve its technical problem is: an eccentric floor drain, comprising: The base is provided with a first drain outlet, and the inner wall of the first drain outlet is provided with a first step; A first connecting plate is mounted on the first step by a first fastener, and a first sealing ring is provided between the first connecting plate and the first step. The first connecting plate is provided with an eccentric second drain outlet, and the inner wall of the second drain outlet is provided with a second step. The second connecting plate is set on the second step by the second fastener, and a second sealing ring is provided between the second connecting plate and the second step. The second connecting plate is provided with an eccentric third drain outlet, and the third drain outlet, the second drain outlet and the first drain outlet are connected. The drain core is partially or entirely installed inside the third drain outlet.
[0006] As a further solution, the first sealing ring is fixed to the first connecting plate or the first step; the second sealing ring is fixed to the second connecting plate or the second step, thereby preventing the first and second sealing rings from shifting under force and resulting in a better sealing effect.
[0007] As a further solution, the bottom surface of the first connecting plate is provided with an annular positioning groove, and the first sealing ring is partially inserted into the positioning groove. This facilitates the installation of the first sealing ring and positions the first sealing ring to prevent it from twisting or shifting in the horizontal plane.
[0008] As a further embodiment, the first fastener is detachably disposed within the first drain outlet; the second fastener is detachably disposed within the second drain outlet, thereby allowing the first connecting plate and the base to rotate relative to each other, and the second connecting plate and the first connecting plate to rotate relative to each other.
[0009] As a further embodiment, the first fastener is screwed into the first drain outlet; the second fastener is screwed into the second drain outlet, thereby ensuring a good seal between the first connecting plate and the base, and between the second connecting plate and the first connecting plate.
[0010] As a further solution, the first fastener and the second fastener are provided with a tightening part, which can loosen or tighten the first fastener and the second fastener.
[0011] As a further solution, the first connecting plate is provided with an annular receiving groove, and the first fastener is placed in the receiving groove, thereby reducing the thickness of the eccentric drain in the vertical direction, making it thinner, so that the groove depth of the installation groove on the ground is smaller.
[0012] As a further solution, the eccentric floor drain also includes a first filter cover and a second filter cover, which are respectively placed inside the first drain outlet and the second drain outlet. The mesh size of the second filter cover is smaller than that of the first filter cover, so that debris of different sizes can be filtered in stages to avoid debris clogging the third drain outlet and the floor drain core inside the third drain outlet.
[0013] As a further embodiment, the drain core is screwed into the third drain outlet, and the drain core is fitted with a third sealing ring, which is fixed to the flange of the drain core, thereby achieving a seal between the drain core and the third drain outlet.
[0014] The beneficial effects of this invention are as follows: Loosening the first fastener allows the first sealing ring to disengage from the first connecting plate or the first step, causing the first connecting plate and the first step to rotate relative to each other. Since the first sealing ring is not under stress, it will not shift or deform, and the position of the second drain outlet relative to the first drain outlet (or relative to the base) is also adjusted. Then, the first connecting plate is fixed with the first fastener, causing it to press the first sealing ring firmly onto the first step, ensuring a good seal between the first connecting plate and the base 1. Loosening the second fastener allows the second sealing ring to disengage from the second connecting plate or the second step, causing it to rotate relative to the second step. Since the second sealing ring is not under stress, it will not shift or deform, and the position of the third drain outlet relative to the second drain outlet (or relative to the first connecting plate) is also adjusted. Then, the second connecting plate is fixed with the second fastener, causing it to press the second sealing ring firmly onto the second step, ensuring a good seal between the second connecting plate and the first connecting plate, thereby preventing wastewater and odor from the sewer from seeping onto the ground through the gaps between the first connecting plate and the base, and between the second connecting plate and the first connecting plate. Attached Figure Description
[0015] Figure 1 Three-dimensional representation of an embodiment of the present invention Figure 1 ; Figure 2 Three-dimensional representation of an embodiment of the present invention Figure 2 ; Figure 3 This is a cross-sectional view of an embodiment of the present invention; Figure 4 for Figure 3 Enlarged view of point A in the image; Figure 5 Three-dimensional representation of an embodiment of the present invention Figure 3 (Hidden base); Figure 6 This is a perspective view of the base in an embodiment of the present invention; Figure 7 The three-dimensional representation of the first connecting plate in this embodiment of the invention Figure 1 ; Figure 8 The three-dimensional representation of the first connecting plate in this embodiment of the invention Figure 2 ; Figure 9 The three-dimensional representation of the second connecting plate in this embodiment of the invention. Figure 1 ; Figure 10 The three-dimensional representation of the second connecting plate in this embodiment of the invention. Figure 2 .
[0016] In the picture, Base 1, first drain outlet 11, first step 111; First connecting plate 2, second drain outlet 21, second step 211, positioning groove 22, receiving groove 23; First fastener 3, tightening part 31; First sealing ring 4; Second connecting plate 5, third drain outlet 51; Second fastener 6; Second sealing ring 7; Floor drain core 8, flange 81; First filter cover 9, second filter cover 91; Third sealing ring 10. Detailed Implementation
[0017] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings. It should be noted that these descriptions are for the purpose of aiding understanding the present invention, but do not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.
[0018] As attached Figure 1-2 As shown in Figures 1 and 5, this embodiment provides an eccentric floor drain, which includes a base 1, a first connecting plate 2, a second connecting plate 5, and a floor drain core 8.
[0019] As attached Figure 1-4 As shown in Figure 6, the base 1 is used for installation in the mounting groove on the ground, serving as the mounting base for the drain core 8. The base 1 can be designed as square or circular, depending on the requirements. The base 1 is provided with a first drain outlet 11, which extends in the vertical direction, and the inner wall of the first drain outlet 11 is provided with a first step 111. Specifically, the first drain outlet 11 and the first step 111 are integrally formed, thereby making the integration of the first step 111 with the base 1 stronger. Preferably, the first step 111 is annular.
[0020] As attached Figure 3-8As shown, the first connecting plate 2 is mounted on the first step 111 via a first fastener 3, and a first sealing ring 4 is provided between the first connecting plate 2 and the first step 111. The first connecting plate 2 has an eccentric second drain outlet 21 extending in the vertical direction, and the inner wall of the second drain outlet 21 has a second step 211. Specifically, in the vertical direction, the first sealing ring 4 is located between the first connecting plate 2 and the first step 111. Loosening the first fastener 3 causes the first sealing ring 4 to disengage from the first connecting plate 2 or the first step 111, allowing the first connecting plate 2 and the first step 111 to rotate relative to each other. Since the first sealing ring 4 is not under force, it will not shift or deform, and the position of the second drain outlet 21 relative to the first drain outlet 11 (or relative to the base 1) is also adjusted. The first connecting plate 2 is then fixed by the first fastener 3, thereby pressing the first sealing ring 4 onto the first step 111, ensuring a good seal between the first connecting plate 2 and the first drain outlet 11. Furthermore, the second drain outlet 21 and the second step 211 are integrally formed, thereby enhancing the integration of the second step 211 with the first connecting plate 2. Preferably, the first fastener 3 and the second step 211 are annular.
[0021] As attached Figure 3-4 As shown in Figures 7-10, the second connecting plate 5 is mounted on the second step 211 via a second fastener 6, and a second sealing ring 7 is provided between the second connecting plate 5 and the second step 211. Specifically, in the vertical direction, the second sealing ring 7 is located between the second connecting plate 5 and the second step 211. Loosening the second fastener 6 causes the second sealing ring 7 to disengage from the second connecting plate 5 or the second step 211, allowing the second connecting plate 5 and the second step 211 to rotate relative to each other. Since the second sealing ring 7 is not under force, it will not shift or deform, and the position of the third drain outlet 51 relative to the second drain outlet 21 (or relative to the first connecting plate 2) is also adjusted. The second connecting plate 5 is then fixed by the second fastener 6, thereby pressing the second sealing ring 7 against the second step 211, ensuring a good seal between the second connecting plate 5 and the second drain outlet 21. Preferably, the second fastener 6 is annular.
[0022] As attached Figure 3-4 As shown in Figures 9-10, the second connecting plate 5 is provided with an eccentric third drain outlet 51, which extends vertically and is connected to the second drain outlet 21 and the first drain outlet 11. Specifically, the third drain outlet 51 is formed by integral molding. Water from the ground flows sequentially into the first drain outlet 11, the second drain outlet 21, and the third drain outlet 51, and is discharged into the sewer from the third drain outlet 51.
[0023] As attached Figure 3-4As shown, the drain core 8 is partially or entirely installed inside the third drain outlet 51. Specifically, the drain core 8 controls the opening and closing of the third drain outlet 51, thereby preventing odors and wastewater from overflowing onto the ground. This is a conventional technology and will not be described in detail.
[0024] In this embodiment, the base 1 is provided with a first drain outlet 11, the inner wall of the first drain outlet 11 is provided with a first step 111, the first connecting plate 2 is set on the first step 111 by a first fastener 3, the first connecting plate 2 is provided with an eccentric second drain outlet 21, the inner wall of the second drain outlet 21 is provided with a second step 211, the second connecting plate 5 is set on the second step 211 by a second fastener 6, the second connecting plate 5 is provided with an eccentric third drain outlet 51, and the drain core 8 is partially or entirely set in the third drain outlet 51. Thus, the first connecting plate 2 can rotate relative to the base 1 in the first drain outlet 11, adjusting the position of the eccentric second drain outlet 21 relative to the base 1 to form a circular displacement trajectory; the second connecting plate 5 can rotate relative to the first connecting plate 2 in the second drain outlet 21, adjusting the position of the eccentric third drain outlet 51 and the drain core 8 relative to the first connecting plate 2 to form another circular displacement trajectory. By using a double eccentric setting, the movement trajectory of the drain core 8 is extended to a plane, which greatly increases the applicability of the eccentric drain and makes the drain core 8 compatible with the sewers on the ground.
[0025] It is worth noting that, as shown in the attached document... Figure 1-3 As shown, the lower edges of the second drain outlet 21 and the third drain outlet 51 protrude from the first drain outlet 11 and the second drain outlet 21, respectively, so that the outer walls of the second drain outlet 21 and the third drain outlet 51 can be turned by hand, thereby driving the first connecting plate 2 and the second connecting plate 5 to rotate relative to the first drain outlet 11 and the second drain outlet 21, respectively.
[0026] Furthermore, loosening the first fastener 3 causes the first sealing ring 4 to disengage from the first connecting plate 2 or the first step 111, allowing the first connecting plate 2 and the first step 111 to rotate relative to each other. Since the first sealing ring 4 is not under stress, it will not shift or deform, and the position of the second drain outlet 21 relative to the first drain outlet 11 (or relative to the base 1) is also adjusted. The first connecting plate 2 is then fixed back in place by the first fastener 3, thereby pressing the first sealing ring 4 against the first step 111, ensuring a good seal between the first connecting plate 2 and the base 1. Loosening the second fastener 6 causes the second sealing ring 7 to disengage from the second connecting plate 5 or the second step 211, allowing the second connecting plate 5 and the second step 211 to rotate relative to each other. Since the second sealing ring 7 is not under stress, it will not shift or deform, and the position of the third drain outlet 51 relative to the second drain outlet 21 (or relative to the first connecting plate 2) is also adjusted. The second connecting plate 5 is then fixed by the second fastener 6, so that the second connecting plate 5 presses the second sealing ring 7 onto the second step 211, so that the second connecting plate 5 and the first connecting plate 2 are well sealed, thereby preventing sewage and odor from the sewer from seeping out of the ground through the gap between the first connecting plate 2 and the base 1, and the gap between the second connecting plate 5 and the first connecting plate 2.
[0027] In some embodiments, as shown in the appendix Figure 3-4 As shown, the first sealing ring 4 is fixed to the first connecting plate 2 or the first step 111 by adhesive bonding or heat fusion, thereby fixing the first sealing ring 4 and the first connecting plate 2 or the first step 111 into a single unit. During the relative rotation of the first connecting plate 2 and the base 1, the first sealing ring 4 is prevented from shifting or deforming under force, resulting in a better sealing effect. The second sealing ring 7 is fixed to the second connecting plate 5 or the second step 211 by adhesive bonding or heat fusion, thereby fixing the second sealing ring 7 and the second connecting plate 5 or the second step 211 into a single unit. During the relative rotation of the second connecting plate 5 and the first connecting plate 2, the second sealing ring 7 is prevented from shifting or deforming under force, resulting in a better sealing effect.
[0028] It is worth mentioning that, as shown in the attached document Figure 3-4 As shown, the bottom surface of the first connecting plate 2 is provided with an annular positioning groove 22. The first sealing ring 4 is partially inserted into the positioning groove 22. The positioning groove 22 positions the first sealing ring 4, which facilitates the installation of the first sealing ring 4 and also positions the first sealing ring 4 to prevent it from twisting or shifting in the horizontal plane.
[0029] In some embodiments, as shown in the appendix Figure 3-4As shown, the first fastener 3 is detachably disposed within the first drain outlet 11, and the second fastener 6 is detachably disposed within the second drain outlet 21. Specifically, the detachable arrangement can be achieved through screw connection or snap-fit connection, thereby allowing the first connecting plate 2 to rotate relative to the base 1, and the second connecting plate 5 to rotate relative to the first connecting plate 2. Preferably, as shown in the attached diagram... Figure 3-4 As shown, the first fastener 3 is screwed into the first drain outlet 11, and the second fastener 6 is screwed into the second drain outlet 21. Threads are provided on the circumferential surfaces of the first fastener 3 and the second fastener 6, and on the inner walls of the first drain outlet 11 and the second drain outlet 21, thus achieving the screw connection. This screw connection allows the first fastener 3 and the second fastener 6 to be more securely fixed within the first drain outlet 11 and the second drain outlet 21, respectively, thereby fixing the first connecting plate 2 to the base 1 and fixing the second connecting plate 5 to the first connecting plate 2, ensuring a good seal between the first connecting plate 2 and the base 1, and between the second connecting plate 5 and the first connecting plate 2.
[0030] It is worth noting that, as shown in the attached document... Figure 5 As shown, the first fastener 3 and the second fastener 6 are provided with a tightening part 31. The tightening part 31 can be a tightening groove or a protrusion protruding from the first fastener 3 and the second fastener 6. When the tightening part 31 is a tightening groove, there are two symmetrical locations of the tightening groove. By inserting a tool into the tightening groove, the first fastener 3 and the second fastener 6 can be loosened or tightened. When the tightening part 31 is a protrusion, there are two symmetrical locations of the protrusion. By hand-tightening the protrusion, the first fastener 3 and the second fastener 6 can be loosened or tightened.
[0031] Based on the above embodiments, as shown in the appendix Figure 5 , 7 As shown, the first connecting plate 2 is provided with an annular receiving groove 23, and the first fastener 3 is placed in the receiving groove 23, thereby reducing the thickness of the eccentric floor drain in the vertical direction, making it thinner, so that the groove depth of the installation groove on the ground is smaller.
[0032] Furthermore, as attached Figure 3 As shown, the eccentric floor drain also includes a first filter cover 9 and a second filter cover 91. The first filter cover 9 and the second filter cover 91 are respectively placed in the first drain outlet 11 and the second drain outlet 21, and the mesh size of the second filter cover 91 is smaller than that of the first filter cover 9. By setting the first filter cover 9 and the second filter cover 91 with gradually decreasing mesh sizes, debris of different sizes can be filtered in stages to avoid debris clogging the third drain outlet 51 and the floor drain core 8 inside the third drain outlet 51.
[0033] Among them, as attached Figure 3-4As shown, the drain core 8 is screwed into the third drain outlet 51. The drain core 8 is fitted with a third sealing ring 10, which is fixed to the flange 81 of the drain core 8 by adhesive or heat fusion. When the drain core 8 is screwed into the third drain outlet 51, the flange 81 of the drain core 8 presses the third sealing ring 10 against the threaded top of the third drain outlet 51, thus achieving a seal between the drain core 8 and the third drain outlet 51. Furthermore, the third sealing ring 10 and the flange 81 of the drain core 8 are fixed together, preventing the third sealing ring 10 from shifting or deforming under force during the screwing and tightening process, resulting in a better sealing effect. It should be noted that after the drain core 8 is screwed and tightened into the third drain outlet 51, no adjustment is required; therefore, the third sealing ring 10 will not shift or deform.
[0034] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and these variations still fall within the protection scope of the present invention.
Claims
1. An eccentric floor drain, characterized in that: include: The base (1) is provided with a first drain outlet (11), and the inner wall of the first drain outlet (11) is provided with a first step (111). The first connecting plate (2) is set on the first step (111) by the first fastener (3), and a first sealing ring (4) is provided between the first connecting plate (2) and the first step (111). The first connecting plate (2) is provided with an eccentric second drain outlet (21), and the inner wall of the second drain outlet (21) is provided with a second step (211). The second connecting plate (5) is set on the second step (211) by the second fastener (6), and a second sealing ring (7) is provided between the second connecting plate (5) and the second step (211). The second connecting plate (5) is provided with an eccentric third drain outlet (51), and the third drain outlet (51), the second drain outlet (21), and the first drain outlet (11) are connected. The drain core (8) is partially or entirely located inside the third drain outlet (51).
2. An eccentric floor drain according to claim 1, characterized in that: The first sealing ring (4) is fixed to the first connecting plate (2) or the first step (111); The second sealing ring (7) is fixed to the second connecting plate (5) or the second step (211).
3. An eccentric floor drain according to claim 1 or 2, characterized in that: The bottom surface of the first connecting plate (2) is provided with an annular positioning groove (22), and the first sealing ring (4) is partially inserted into the positioning groove (22).
4. An eccentric floor drain according to claim 1, characterized in that: The first fastener (3) is detachably disposed inside the first drain outlet (11); The second fastener (6) is detachably disposed within the second drain outlet (21).
5. An eccentric floor drain according to claim 4, characterized in that: The first fastener (3) is screwed into the first drain outlet (11); The second fastener (6) is screwed into the second drain outlet (21).
6. An eccentric floor drain according to claim 5, characterized in that: The first fastener (3) and the second fastener (6) are provided with a screwing part (31).
7. An eccentric floor drain according to claim 1, characterized in that: The first connecting plate (2) is provided with an annular receiving groove (23), and the first fastener (3) is placed in the receiving groove (23).
8. An eccentric floor drain according to claim 1, characterized in that: The eccentric drain also includes a first filter cover (9) and a second filter cover (91), which are respectively placed inside the first drain outlet (11) and the second drain outlet (21), and the mesh size of the second filter cover (91) is smaller than that of the first filter cover (9).
9. An eccentric floor drain according to claim 1, characterized in that: The drain core (8) is screwed into the third drain outlet (51), and the drain core (8) is fitted with a third sealing ring (10), which is fixed to the flange (81) of the drain core (8).