Floor drain core

Abstract

The utility model relates to the technical field of floor drains, and provides a floor drain core which comprises a shell, a cover plate and a sealing part, the shell is provided with a hollow cavity, a water inlet is formed in the top of the shell, a water outlet is formed in the bottom of the shell, and a protruding abutting part is arranged on the inner wall of the water outlet in a surrounding mode; one end of the cover plate is a hinged end rotationally arranged at the bottom of the shell, the other end of the cover plate is a movable end for opening or covering the water outlet, and a driving part for driving the cover plate to cover the water outlet is arranged at the hinged end; the middle of the cover plate protrudes towards the interior of the hollow cavity and forms a boss. The boss is sleeved with the sealing part, the sealing part sequentially comprises a first sealing part, an annular groove and a second sealing part from top to bottom, the first sealing part, the annular groove and the second sealing part are of an I-shaped structure, the first sealing part is attached to or separated from the bottom face of the abutting part, and the second sealing part is attached to or separated from the bottom face of the shell. Through double-layer sealing of the sealing part, the better effects of odor isolation and overflow prevention are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of floor drains, and particularly relates to a floor drain core. Background Art

[0002] A floor drain is an important interface connecting a drainage pipe system and an indoor floor. A floor drain core is an odor-proof component placed in the floor drain. As an important component of the floor drain, the performance of the floor drain core will directly affect the quality of indoor air. With the development of the floor drain industry, magnetic floor drain cores have emerged on the market. The magnetic floor drain cores can use the like-pole repulsion and / or opposite-pole attraction of magnetism to achieve the purpose of automatic closing.

[0003] For example, in the utility model patent with the application number 201620149202.7 and the patent name "A Floor Drain Core", the lower part of the floor drain core body has an oblique cut, a sealing plate is hinged at the cut, an extension part is arranged at the hinge, and a magnetic attracting part is arranged on the side wall at the cut. Another magnetic attracting part with opposite-pole attraction to the side wall is arranged on the sealing plate, and still another magnetic attracting part with like-pole repulsion to the sealing plate is arranged on the extension part. Under the combined action of the above magnetic attracting parts, the sealing plate of this utility model can automatically close the water outlet at the oblique cut. However, the sealing plate only closes the water outlet through the magnetic attracting parts, and the sealing effect of the water outlet is poor, which will further affect the anti-backflow effect, and there will still be dirty water and odor entering the room.

[0004] Therefore, this application proposes a floor drain core with good sealing effect. Content of the Utility Model

[0005] The purpose of the utility model is to provide a floor drain core, aiming to improve the problem of poor sealing effect of the existing floor drain core.

[0006] To achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A floor drain core, comprising:

[0008] A housing having a hollow cavity. An inlet communicating with the hollow cavity is provided at the top of the housing, and an outlet communicating with the hollow cavity is provided at the bottom of the housing. A protruding abutting portion is arranged around the inner wall of the outlet;

[0009] A cover plate, one end of which is a hinged end rotatably arranged at the bottom of the housing, the other end of the cover plate is a movable end for opening or closing the outlet, and a driving portion for driving the cover plate to close the outlet is arranged on the hinged end;

[0010] The middle part of the cover plate protrudes towards the inside of the hollow cavity to form a convex platform; and

[0011] A sealing part is sleeved on the boss. The sealing part sequentially includes a first sealing part, an annular groove, and a second sealing part from top to bottom. The first sealing part, the annular groove, and the second sealing part are arranged in an "I" - shaped structure. The first sealing part is in contact with or separated from the bottom surface of the abutting part, and the second sealing part is in contact with or separated from the bottom surface of the housing.

[0012] Preferably, the material of the sealing part is silica gel or rubber.

[0013] Preferably, the hinged end is a rotating shaft. An installation groove is arranged inside the rotating shaft, and a magnet cover is arranged at the notch of the installation groove.

[0014] The driving part includes a first magnetic block and a second magnetic block. The first magnetic block is connected to the bottom of the housing, and the first magnetic block is provided with a first arc surface that is all or partially in contact with the magnet cover. The second magnetic block is arranged in the installation groove. The second magnetic block is provided with a second arc surface that is in contact with the magnet cover and a magnetic attraction plane that is arranged opposite to the second arc surface.

[0015] The first arc surface and the second arc surface are concentric circular arcs, and the magnetic poles of the first arc surface and the second arc surface are different, while the magnetic poles of the first arc surface and the magnetic attraction plane are the same.

[0016] Preferably, the notch is arranged on the rotating shaft in a direction away from the cover plate.

[0017] Preferably, it further includes a rear cover. The rear cover is arranged at the bottom of the housing. The bottom of the housing on one side of the rotating shaft is bent towards the inside of the hollow cavity to form a stepped part.

[0018] A receiving cavity for accommodating the rotating shaft is formed between the rear cover and the stepped part. An avoidance notch for the rotating shaft to extend out is arranged at the bottom of the receiving cavity.

[0019] Preferably, a limiting convex strip that is in contact with or separated from the bottom of the rear cover is arranged on the rotating shaft.

[0020] Preferably, the limiting convex strip limits the angle formed by the cover plate when rotating with the horizontal plane to be less than 90°.

[0021] Preferably, the water outlet is inclined, and the bottom of the outer surface of the housing at the lower end of the water outlet is an arc surface.

[0022] Preferably, an external thread is arranged at the top of the outer wall of the housing.

[0023] Preferably, two convex seats are symmetrically arranged on the top surface of the housing, and a handle is rotatably arranged between the two convex seats.

[0024] After adopting the above technical solution, compared with the background art, the utility model has the following advantages:

[0025] 1. In the utility model, a sealing part is arranged on the cover plate. The sealing part successively includes a first sealing part, an annular groove and a second sealing part from top to bottom, and the first sealing part, the annular groove and the second sealing part are arranged in an "I" - shaped structure. When the cover plate is closed, the first sealing part is located inside the shell and fits with the bottom surface of the abutting part, and the second sealing part fits with the bottom surface of the shell, so as to achieve double - layer sealing and better isolate odors and prevent back - overflow.

[0026] 2. In the utility model, the shell and the abutting part can jointly limit the lateral and vertical displacements of the first sealing part, avoid the situation that the displacement of the sealing part affects the sealing effect, and improve the reliability of the double - layer sealing of the sealing part.

[0027] 3. In the utility model, a driving part for driving the cover plate to close the water outlet is arranged at the hinged end of the cover plate. The cover plate will be opened when impacted by a certain water flow rate, and will automatically close the water outlet after drainage ends, so as to achieve the effect of isolating odors and preventing back - overflow. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is a schematic structural view of the floor drain core described in the utility model;

[0029] Figure 2 is a side view of the floor drain core described in the utility model;

[0030] Figure 3 is an exploded view of the floor drain core described in the utility model;

[0031] Figure 4 is a cross - sectional view of the floor drain core described in the utility model in the state where the cover plate is closed;

[0032] Figure 5 is Figure 4 a partial enlarged view of A in

[0033] Figure 6 is a cross - sectional view of the floor drain core described in the utility model in the state where the cover plate is opened;

[0034] Figure 7 is an exploded view of the cover plate of the floor drain core described in the utility model.

[0035] Description of the reference numerals:

[0036] 1. Shell;

[0037] 10. Hollow cavity; 11. Water inlet; 12. Water outlet; 13. Abutting part; 14. Step part;

[0038] 15. External thread; 16. Boss; 161. Handle;

[0039] 2. Cover plate;

[0040] 20. Rotating shaft; 201. Magnet cover; 202. Driving part; 2021. First magnet;

[0041] 20211. First arc surface; 2022. Second magnet; 20221. Second arc surface;

[0042] 20222. Magnetic attraction plane; 203. Limit rib; 204. Installation groove;

[0043] 21. Boss; 22. Sealing part; 221. First sealing part; 222. Annular groove;

[0044] 223. Second sealing part;

[0045] 3. Rear cover;

[0046] 30. Accommodation cavity; 301. Avoidance notch. Detailed implementation manner

[0047] In order to make the purpose, technical solutions and advantages of the present utility model clearer, the present utility model 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 only used to explain the present utility model and are not used to limit the present utility model.

[0048] In addition, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are all based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element of the present utility model must have a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0049] When an element is referred to as being "fixed to" or "disposed on" or "provided on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0050] Unless otherwise clearly defined or limited, the terms "installation", "connection" and "linkage" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection or an integral connection; it may be a mechanical connection or an electrical connection; it may be a direct connection or an indirect connection through an intermediate medium, and it may be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the utility model can be understood according to specific circumstances.

[0051] Embodiment

[0052] Please refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 and Figure 7 As shown in

[0053] Specifically, the housing 1 has a hollow cavity 10. An inlet 11 communicating with the hollow cavity 10 is provided at the top of the housing 1, and an outlet 12 communicating with the hollow cavity 10 is provided at the bottom of the housing 1. Water flows into the hollow cavity 10 from the inlet 11 and then flows into the sewer pipe from the outlet 12, thereby realizing drainage. One end of the cover plate 2 is a hinged end rotatably provided at the bottom of the housing 1, and the other end of the cover plate 2 is a movable end for opening or closing the outlet 12. A driving part 202 for driving the cover plate 2 to close the outlet 12 is provided on the hinged end. Therefore, the cover plate 2 always has a tendency to close the outlet 12 under the action of the driving part 202. Then, the cover plate 2 will be opened when impacted by a certain water flow rate and will automatically close the outlet 12 after the drainage is completed, achieving the effects of isolating odors and preventing backflow.

[0054] Further, the middle part of the cover plate 2 protrudes towards the inside of the hollow cavity 10 to form a boss 21, and a protruding abutting portion 13 is arranged around the inner wall of the water outlet 12, and the sealing portion 22 is sleeved on the boss 21. Specifically, the sealing portion 22 is successively composed of a first sealing portion 221, an annular groove 222 and a second sealing portion 223 from top to bottom by means of two-color injection molding process, and the first sealing portion 221, the annular groove 222 and the second sealing portion 223 are arranged in an "I" shape structure, that is, the size of the first sealing portion 221 is smaller than that of the second sealing portion 223, and an annular groove 222 is formed between the first sealing portion 221 and the second sealing portion 223, so that the first sealing portion 221 and the second sealing portion 223 are arranged in a stepped structure, and the first sealing portion 221 can be hidden in the housing 1, making the overall integrity and aesthetics of the floor drain core better. When the cover plate 2 covers the water outlet 12, the first sealing portion 221 fits against the bottom surface of the abutting portion 13, and the second sealing portion 223 fits against the bottom surface of the housing 1. On the one hand, the first sealing portion 221 and the second sealing portion 223 can buffer the impact force of the cover plate 2 when it automatically closes on the abutting portion 13 and the housing 1, extending the service life of the floor drain core; on the other hand, the first sealing portion 221 fitting against the bottom surface of the abutting portion 13 can achieve the first layer of sealing, and the second sealing portion 223 fitting against the bottom surface of the housing 1 can achieve the second layer of sealing. The double-layer sealing can effectively improve the anti-odor and anti-backflow effects. Moreover, an annular groove 222 is arranged between the first sealing portion 221 and the second sealing portion 223. When the cover plate 2 covers the water outlet 12 or when the water flow backflows, the annular groove 222 is squeezed, making the first sealing portion 221 fit more tightly against the abutting portion 13, thereby achieving a better effect of isolating odors and preventing backflow. When the cover plate 2 is opened, the first sealing portion 221 is separated from the bottom surface of the abutting portion 13, and the second sealing portion 223 is separated from the bottom surface of the housing 1, and the water flow drains into the drainage pipe from the water outlet 12.

[0055] In addition, since the first sealing portion 221 fits against the bottom of the abutting portion 13 and is arranged inside the housing 1, the housing 1 and the abutting portion 13 can jointly limit the lateral and vertical displacements of the first sealing portion 221, avoiding the situation that the displacement of the sealing portion 22 affects the sealing effect, and improving the reliability of the double-layer sealing of the sealing portion 22. The top surface of the abutting portion 13 can be an inclined surface, and the inclined surface can be used to guide the water flow to drain quickly, facilitating drainage, and the inclined surface is smooth, so it is not easy to accumulate water and dirt.

[0056] In this embodiment, the material of the sealing portion 22 is silica gel or rubber. Both silica gel and rubber have good sealing performance, are waterproof and leak-free, and have good aging resistance and tensile strength, and are not easy to deform.

[0057] Such as Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 and Figure 7As shown, in this embodiment, the hinged end is the rotating shaft 20. An installation groove 204 is provided inside the rotating shaft 20, and a magnet cover 201 is provided at the notch of the installation groove 204. The driving part 202 includes a first magnet 2021 and a second magnet 2022. The first magnet 2021 is connected to the bottom of the housing 1, and the first magnet 2021 is provided with a first arc surface 20211 that fits all or part of the magnet cover 201. The second magnet 2022 is arranged inside the rotating shaft 20. The second magnet 2022 is provided with a second arc surface 20221 that fits the magnet cover 201 and a magnetic attraction plane 20222 opposite to the second arc surface 20221. The first arc surface 20211 and the second arc surface 20221 are concentric arcs, and the magnetic poles of the first arc surface 20211 are different from those of the second arc surface 20221, and the magnetic poles of the first arc surface 20211 are the same as those of the magnetic attraction plane 20222.

[0058] Specifically, the first magnet 2021 is fixedly arranged at the bottom of the housing 1, and the bottom surface of the first magnet 2021 is the first arc surface 20211 that fits the curved surface of the rotating shaft 20. Then, the rotating shaft 20 always fits the first arc surface 20211 of the first magnet 2021 during rotation. When the cover plate 2 is closed, the first arc surface 20211 of the first magnet 2021 fits entirely on the magnet cover 201. Under the action of the magnetic attraction between the magnetic poles of the first arc surface 20211 and the second arc surface 20221, the cover plate 2 is driven to tightly cover the water outlet 12. When the cover plate 2 is opened, under the impact of water flow, the rotating shaft 20 rotates clockwise, and the position of the magnet cover 201 changes with the rotation of the rotating shaft 20. The first arc surface 20211 of the first magnet 2021 partially fits on the magnet cover 201. Since the first arc surface 20211 and the second arc surface 20221 are concentric arcs, at this time, the magnetic attraction plane 20222 of the second magnet 2022 is partially opposite to the first arc surface 20211 of the first magnet 2021. Under the action of the magnetic repulsion between the magnetic poles of the first arc surface 20211 and the magnetic attraction plane 20222, the rotating shaft 20 can be driven to rotate counterclockwise to reset, thereby driving the cover plate 2 to cover the water outlet 12. Then, when the drainage ends, the rotating shaft 20 rotates counterclockwise. As the overlapping area between the first arc surface 20211 and the second arc surface 20221 gradually increases, under the action of the magnetic attraction between the magnetic poles of the first arc surface 20211 and the second arc surface 20221, the speed of the rotating shaft 20 rotating counterclockwise to reset can be accelerated, thereby using the lever principle to quickly drive the cover plate 2 to cover the water outlet 12 and avoid local leakage or backflow.

[0059] As Figure 4 、 Figure 6 and Figure 7 shown, in this embodiment, the notch is arranged on the rotating shaft 20 in the direction away from the cover plate 2.

[0060] Specifically, since the notch of the installation groove 204 is arranged on the rotating shaft 20 in a direction away from the cover plate 2, the height of the side wall of the installation groove 204 on the side close to the cover plate 2 is higher than the height of the side wall of the installation groove 204 on the side away from the cover plate 2. Then, the side wall on the side close to the cover plate 2 forms a blocking wall that blocks water flow from contacting the second magnetic block 2022 through the gap, which can protect the second magnetic block 2022 and thus extend the service life of the floor drain core.

[0061] As Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 6 shown, in this embodiment, it further includes a rear cover 3. The rear cover 3 is arranged at the bottom of the housing 1. The bottom of the housing 1 on one side of the rotating shaft 20 is bent towards the inner hollow cavity 10 to form a stepped portion 14. The stepped surface of the stepped portion 14 can play a role in guiding the flow. Water flows into the hollow cavity 10 from the water inlet 11 and falls onto the stepped surface. Under the action of the stepped surface, the water flow can be guided to flow in the same direction and discharged from the water outlet 12, thereby accelerating the drainage speed. Moreover, a receiving cavity 30 for accommodating the rotating shaft 20 is formed between the rear cover and the stepped portion 14. A relief notch 301 for the rotating shaft 20 to extend out is provided at the bottom of the receiving cavity 30. By hiding and accommodating the rotating shaft 20 with the rear cover 3, the overall aesthetics of the floor drain core is improved.

[0062] As Figure 2 , Figure 3 , Figure 4 and Figure 6 shown, in this embodiment, a limiting rib 203 that abuts against or separates from the bottom of the rear cover 3 is provided on the rotating shaft 20. The limiting rib 203 limits the angle formed by the cover plate 2 when rotating with the horizontal plane to be less than 90°.

[0063] Specifically, when the cover plate 2 is opened, the limiting rib 203 on the rotating shaft 20 abuts against the rear cover 3, thereby limiting the maximum opening angle of the cover plate 2 to be less than 90°, preventing the cover plate 2 from opening at too large an angle and getting stuck on the inner wall of the drainage pipe. While not affecting the drainage effect, it ensures that the floor drain core is safer and more reliable to use. Moreover, the structure of the limiting rib 203 is simple, making the overall floor drain core lighter.

[0064] As Figure 6 shown, in this embodiment, the water outlet 12 is inclined, and the bottom of the outer surface of the housing 1 at the lower end of the water outlet 12 is an arc surface. The design of the arc surface enables the floor drain core to better fit the curvature of the elbow pipe, making the overall structure more compact.

[0065] As Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 6As shown, in this embodiment, an external thread 15 for easy installation is provided at the top of the outer wall of the housing 1.

[0066] As Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 6 As shown, in this embodiment, two convex seats 16 are symmetrically arranged on the top surface of the housing 1, and a handle 161 is rotatably arranged between the two convex seats 16. By providing the handle 161, it is convenient to take and place the floor drain core, and both the handle 161 and the convex seat 16 are arranged on the top surface of the housing 1. Compared with the method of installing the handle 161 by drilling holes in the side wall of the housing 1, the sealing performance of the floor drain core can be further ensured.

[0067] The above are only the preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed by the present invention should be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

1. A floor drain core, characterized in that include: A shell having a hollow cavity, wherein a water inlet communicating with the hollow cavity is disposed at the top of the shell, a water outlet communicating with the hollow cavity is disposed at the bottom of the shell, and a protruding abutment portion is disposed around the inner wall of the water outlet; A cover plate, one end of which is a hinged end rotatably arranged at the bottom of the shell, and the other end of the cover plate is a movable end for opening or closing the water outlet, and a driving part for driving the cover plate to cover the water outlet is arranged on the hinged end; The middle portion of the cover plate protrudes toward the hollow cavity to form a boss; and A sealing portion is sleeved on the boss, and the sealing portion includes a first sealing portion, an annular groove and a second sealing portion from top to bottom, and the first sealing portion, the annular groove and the second sealing portion are arranged in an "I" shape structure, the first sealing portion is in contact with or separated from the bottom surface of the abutting portion, and the second sealing portion is in contact with or separated from the bottom surface of the shell.

2. The floor drain core according to claim 1, wherein The sealing part is made of silicone or rubber.

3. The floor drain core according to claim 1, characterized in that, The hinged end is a rotating shaft, a mounting groove is arranged in the rotating shaft, and a magnet cover is arranged on the notch of the mounting groove; The driving part includes a first magnetic block and a second magnetic block, wherein the first magnetic block is connected to the bottom of the housing, and the first magnetic block is provided with a first arc surface which is fully or partially fitted with the magnet cover; the second magnetic block is arranged in the mounting groove, and the second magnetic block is provided with a second arc surface which is fitted with the magnet cover and a magnetic attraction plane which is arranged opposite to the second arc surface; The first arc surface and the second arc surface are concentric arcs, and the magnetic poles of the first arc surface are different from the magnetic poles of the second arc surface, and the magnetic poles of the first arc surface are the same as the magnetic poles of the magnetic attraction plane.

4. The floor drain core according to claim 3, characterized in that, The notch is arranged on the rotating shaft in a direction away from the cover plate.

5. The floor drain core according to claim 3, characterized in that, It also includes a rear cover, which is arranged at the bottom of the shell, and the bottom of the shell located on one side of the rotating shaft is bent toward the hollow cavity to form a step portion; A receiving cavity for receiving the rotating shaft is formed between the rear cover and the step portion, and a relief notch for the rotating shaft to extend out is arranged at the bottom of the receiving cavity.

6. The floor drain core according to claim 5, characterized in that, The rotating shaft is provided with a limiting convex strip which abuts against or separates from the bottom of the rear cover.

7. The floor drain core according to claim 6, characterized in that, The limiting convex strip limits the angle formed by the cover plate and the horizontal plane when rotating to be less than 90°.

8. The floor drain core according to claim 1, characterized in that, The water outlet is arranged in an inclined manner, and the bottom of the outer surface of the shell body located at the lower end of the water outlet is an arc-shaped surface.

9. The floor drain core according to claim 1, characterized in that, The top of the outer wall of the shell is provided with an external thread.

10. The floor drain core according to claim 1, characterized in that, Two convex seats are symmetrically arranged on the top surface of the shell, and a handle is rotatably arranged between the two convex seats.

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