Floor drain drainage pipe fault adapter
By designing a drain pipe transition joint, the leakage problem caused by the height difference between the drain and the pipe was solved, realizing independent drainage of water-using equipment and ground water, avoiding backflow, backflow of residue and backflow of odor. The structure is simple and easy to install.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 魏昀
- Filing Date
- 2025-06-09
- Publication Date
- 2026-05-12
AI Technical Summary
The height difference between the floor drain and the drain pipe causes water leakage problems, and the existing floor drain core cannot simultaneously drain water equipment and surface water independently, which easily leads to backflow, backflow of residue and backflow of odor.
Design a floor drain pipe cross-section adapter, including a detachable drain connector, a floor drain core and an extension pipe. The floor drain core is divided into two drainage chambers, which are connected by a plug-in method. Ground water and water from water-using equipment are drained through independent channels. The lower end of the floor drain core can be extended to adapt to different height differences. A trash rack and a flip-up sealing plate are set to improve the sealing performance.
It allows the lower end of the drain core to extend into the drain pipe, avoiding water leakage problems, enabling independent drainage of water-using equipment and ground water, preventing backflow, backflow of residue and backflow of odors, and making the connection convenient and quick.
Smart Images
Figure CN224227909U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of floor drains, and in particular to a floor drain pipe cross-section adapter. Background Technology
[0002] Before installing a floor drain, it is necessary to take measures such as waterproofing the ground. However, after tiling and other processes are completed, the height of the pre-embedded drain pipe opening in the ground is often too low. This results in a height difference between the floor drain and the drain pipe opening, and the lower end of the floor drain core cannot extend into the drain pipe opening. This gap can easily cause water leakage during drainage.
[0003] In addition, existing floor drain cores only have one drainage chamber, which cannot drain water from water-using equipment and the ground independently. Since the wastewater from water-using equipment generally has a large flow rate and a fast flow velocity, the floor drain core is prone to not draining in time, causing wastewater to backflow onto the ground through the floor drain panel. Utility Model Content
[0004] In view of this, the purpose of this utility model is to provide a drain pipe cross-section adapter, which extends the length of the drain core to avoid water leakage caused by insufficient reserved height of the drain pipe and cross-section height difference. It can realize the simultaneous independent drainage of water-using equipment and ground water without interference.
[0005] This utility model is achieved by the following solution: a floor drain pipe split adapter, including a drain connector, a floor drain core, and at least one extension pipe arranged sequentially from top to bottom and detachably connected together; the floor drain core is divided into two drainage chambers by a partition, the upper part of the drain connector is provided with a water inlet, one side of the lower end of the drain connector is provided with a drain interface that is inserted and matched with one of the drainage chambers of the floor drain core, and the other side of the lower end of the drain connector is provided with a ground drainage inlet located above the other drainage chamber of the floor drain core.
[0006] Furthermore, the drain connector is provided with several debris-blocking bars at the ground drainage inlet; the drain core is provided with flip-up sealing plates at the bottom of the two drainage chambers respectively.
[0007] Furthermore, both the lower part of the drain core and the lower part of the extension pipe are provided with an upper interface, and the upper part of the extension pipe is provided with a lower interface that can be connected to the upper interface.
[0008] Furthermore, the upper interface and the lower interface are connected together via a plug-in card.
[0009] Furthermore, the lower interface has a horizontally oriented guide groove on its inner side, one end of which has a slot that penetrates the upper surface of the lower interface, and the upper interface has a protrusion that passes through the slot when moving downwards and can slide into the guide groove after rotation on its outer side.
[0010] Furthermore, the guide groove is provided with an arc-shaped protrusion, and the buckle is provided with an arc-shaped groove that engages with the arc-shaped protrusion.
[0011] Furthermore, it also includes a drain cover plate, wherein the drain cover plate has an installation hole in the middle for installing the drain core, and the ground drainage inlet of the drain connector protrudes from above the installation hole.
[0012] Furthermore, a limiting support block is provided between the drain core and the drain connector to support the drain connector.
[0013] Furthermore, the inner side of the drain cavity that is connected to the drain interface is provided with an anti-detachment groove, and the outer side of the drain interface is provided with a protrusion that cooperates with the anti-detachment groove.
[0014] Furthermore, it also includes a cap that can be fastened onto the drain connector.
[0015] Compared with the prior art, the present invention has the following beneficial effects:
[0016] (1) Different numbers of extension pipes can be combined as needed to extend the length of the drain core and ensure that the lower end of the drain core extends into the drain pipe, thus avoiding water leakage caused by insufficient height of the drain pipe;
[0017] (2) It can achieve simultaneous and independent drainage of water-using equipment and surface water without interference, backflow, backflow of sludge, or backflow of odor; it adopts a plug-in method, which can be quickly disassembled and installed, and is easy to connect.
[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below through specific embodiments and related drawings. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of this utility model;
[0020] Figure 2 This is a cross-sectional view of one embodiment of the present utility model;
[0021] Figure 3 This is an exploded view of Embodiment 1 of this utility model;
[0022] Figure 4 This is a schematic diagram of the upper and lower interface structure of Embodiment 1 of this utility model;
[0023] Figure 5 This is a perspective view of the drainage connector in one orientation according to Embodiment 1 of this utility model;
[0024] Figure 6 This is a perspective view of the drainage connector in Embodiment 1 of this utility model from another angle;
[0025] Figure 7 This is a perspective view of the drain core according to Embodiment 1 of this utility model;
[0026] Figure 8 This is a schematic diagram of the structure of Embodiment 2 of this utility model;
[0027] Figure 9 This is a schematic diagram of the structure of Embodiment 3 of this utility model;
[0028] Figure 10 This is a schematic diagram of the structure of Embodiment 3 of this utility model, which omits the drain connector;
[0029] The following are the labels in the diagram: 100-Drain connector, 110-Water inlet, 120-Drain outlet, 130-Ground drainage inlet, 140-Scrap bar, 150-Protruding buckle, 160-Annular groove A, 170-Reducing diameter section, 200-Floor drain core, 210-Partition plate, 220-Drainage chamber, 230-Anti-detachment groove, 240-Annular groove B, 250-Sealing plate, 260-Torsion spring, 300-Extended pipe, 400-Upper interface, 410-Protruding buckle, 411-Arc-shaped groove, 420-Snap fastener, 500-Lower interface, 510-Guide slide, 511-Arc-shaped protrusion, 520-Groove, 530-Slot, 600-Floor drain cover, 700-Limiting support block, 800-Cap. Detailed Implementation
[0030] It should be noted that the following detailed descriptions are exemplary and intended to provide further explanation of this application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.
[0031] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.
[0032] Example 1: As Figures 1-6As shown, a drain pipe split adapter includes a drain connector 100, a drain core 200, and at least one extension pipe 300, arranged sequentially from top to bottom and detachably connected together. The drain core 200 is internally divided into two drain chambers 220 by a partition 210. The drain connector 100 has a water inlet 110 at its upper part, a drain outlet 120 at one side of its lower end that plugs into one of the drain chambers of the drain core, and a ground drainage inlet 130 located above the other drain chamber of the drain core at the other side of its lower end. This drain pipe split adapter is installed on a drain. The upper part of the drain connector passes through the mounting hole in the middle of the drain panel. The water inlet of the drain connector is located above the drain panel. The water inlet can be used for draining water-using equipment such as laundry sinks, washing machines, and mop sinks. The ground drainage inlet allows for ground water drainage. In use, the drain connector is inserted into the mounting hole in the middle of the drain panel, and the drain core is inserted into the mounting hole in the middle of the drain base. The water inlet is used to connect to the drain pipe of water-using appliances such as laundry sinks, washing machines, and mop sinks. Water enters one drain chamber of the drain core through the drain inlet and then drains to the drain pipe. Meanwhile, water from the ground enters the drain base through the drain panel and then enters another drain chamber of the drain core through the ground drain inlet 130, and then drains to the drain pipe. Water from water-using appliances and water from the ground have independent channels, allowing both types of water to drain simultaneously and independently without interference, backflow, backflow of residue, or backflow of odor.
[0033] Extension tubes can be used to lengthen the drain core. Different numbers of extension tube sections can be combined as needed to extend the drain core, ensuring the lower end of the drain core extends into the drain pipe and preventing leaks caused by insufficient pipe clearance. The number of extension tube sections (300) depends on the required drain core length; it can be 1, 2, 3, or 4 sections. If the drain core is too long and removing one extension tube section would not provide enough length, the last extension tube section can be cut off and reused.
[0034] Because the drain connector and drain core are plug-in type, the height of the drain connector can be adjusted according to the different depths to which the drain interface is inserted into the drain core's drainage chamber, which can accommodate more drains and has good versatility.
[0035] In this embodiment, the drain connector 100 is provided with several baffle bars 140 at the ground drainage inlet. The baffle bars 140 can also extend into the drainage chamber of the drain core. The ground drainage inlet serves to connect the inner cavity of the drain base and the drainage chamber of the drain core, allowing ground water to enter the drain chamber of the drain through the ground drainage inlet. At the same time, several baffle bars in a comb shape are provided at the ground drainage inlet to intercept debris. The drain connector is provided with a limiting protrusion above the ground drainage inlet and the drain interface to lock onto the drain panel, which serves as a limiting function. The limiting protrusion can be symmetrically arranged on the left and right, spaced apart circumferentially, or arranged in a complete circle.
[0036] In this embodiment, the drain core 200 has flip-up sealing plates 250 at the bottom of each of the two drainage chambers 220. The two sealing plates 250 are hinged together to the bottom of the partition, and a torsion spring 260 is provided at the hinge point, with both ends of the torsion spring abutting against the bottom surfaces of the two sealing plates. The spring force of the torsion spring allows the sealing plates to swing open and close. The two sealing plates are hinged at a single point and share a single torsion spring, simplifying the structure. The bottom surfaces of the two drainage chambers of the drain core are sloped in opposite directions to form an inverted V shape, and the two sealing plates also form an inverted V shape.
[0037] In this embodiment, the upper outer periphery of the drain core 200 is provided with an annular groove B240 for installing a sealing ring. Adding a sealing ring can improve the sealing performance. Replacing the sealing ring with a sealing ring of different outer diameter or using a variable diameter sealing ring can adapt to different mounting hole diameters, and has good versatility. The upper outer periphery of the drain core is provided with a retaining ring for locking above the middle mounting hole of the drain base.
[0038] In this embodiment, the inner side of the drain cavity that mates with the drain interface is provided with an anti-detachment groove 230, and the outer side of the drain interface is provided with a protrusion 150 that mates with the anti-detachment groove. The anti-detachment groove and the protrusion engage to prevent the drain connector and drain core from easily detaching, while also limiting the minimum depth to which the drain interface of the drain connector is inserted into the drain cavity of the drain core; when disassembly is required, only slight force is needed to pull them apart.
[0039] In this embodiment, the outer periphery of the water inlet of the drain connector is provided with an annular groove A160 for installing a sealing ring. The water inlet is used to connect to the drain pipe of the water-using equipment, using a plug-in method. Replacing the sealing ring with a different outer diameter size can adapt to drain pipes with different inner diameter sizes, providing good versatility, convenient connection, and good sealing performance. The number of annular grooves A can be 1, 2, or 3. To further improve the sealing performance, the number of annular grooves can be increased.
[0040] In this embodiment, the drain connector has two inlet ports, one located at the upper end and the other at the side, and the drain connector is T-shaped. In specific implementations, the following two scenarios can also be used: 1. The drain connector has only one inlet port with a reducing section at the inlet port, and the drain connector is generally bent. 2. The drain connector has three inlet ports, one at the upper end and two symmetrically arranged at the sides, with at least one inlet port having a reducing section, and the drain connector is cross-shaped.
[0041] In this embodiment, a cap 800 that can be fastened onto the drain connector is also included. When the water inlet is not in use (i.e., when no drain pipe is connected), the cap can be used to seal it to prevent backflow of odors.
[0042] In this embodiment, both the lower part of the drain core 200 and the lower part of the extension pipe 300 are provided with an upper interface 400, and the upper part of the extension pipe is provided with a lower interface 500 that can be connected to the upper interface. Extension pipes can also be connected to each other through the upper and lower interfaces.
[0043] In this embodiment, the upper interface 400 and the lower interface 500 are connected together via a plug-in card.
[0044] In this embodiment, the lower interface 500 has a horizontally oriented guide groove 510 on its inner side. One end of the guide groove has a slot 520 that penetrates the upper surface of the lower interface. The upper interface 400 has a protruding buckle 410 on its outer side that passes through the slot when moving downwards and can slide into the guide groove after rotation. When the upper and lower interfaces are connected, the protruding buckle 410 is aligned with the slot 520, and the upper interface 400 is inserted into the lower interface 500. Then, the upper or lower interface is rotated so that the protruding buckle 410 slides into the guide groove, and the upper and lower interfaces cannot detach axially.
[0045] In this embodiment, in order to make the connection between the upper and lower interfaces more secure, the guide groove 510 is provided with an arc-shaped protrusion 511, and the buckle 410 is provided with an arc-shaped groove 411 that engages with the arc-shaped protrusion. The arc-shaped groove 411 and the arc-shaped protrusion 511 can restrict the relative rotation of the upper and lower interfaces in the circumferential direction without the action of external force. However, during disassembly, the arc-shaped protrusion 511 can be dislodged from the arc-shaped groove 411 by hand rotation.
[0046] In practical implementation, the upper and lower interfaces can also be connected via a snap-fit mechanism as follows: the upper interface has a snap-fit on its outer side, and the lower interface has a slot on its inner side that engages with the snap-fit. Alternatively, the upper and lower interfaces can be connected by threads.
[0047] Example 2: Figure 8As shown, the top extension pipe adopts a variable diameter structure with a larger top end and a smaller bottom end. The diameter of the remaining extension pipes is the same as that of the bottom end of the top extension pipe. The upper end of the variable diameter extension pipe is connected to the drain core, and the lower end is connected to the remaining extension pipes to adapt to the smaller diameter drain pipes.
[0048] Example 3: It also includes a drain cover plate 600, which can replace the original drain panel. The drain cover plate 600 can be a commercially available drain renovation sticker for the renovation of old drains. The drain cover plate 600 has an installation hole in the middle for installing the drain core. The drain core is installed in the middle of the drain cover plate 600. The ground drainage inlet of the drain connector is exposed above the installation hole, so that the water on the ground can directly enter the drain chamber of the drain through the ground drainage inlet and be discharged into the drain pipe. At this time, the retaining ring on the outer periphery of the upper end of the drain core is locked on the upper side of the installation hole of the drain cover plate.
[0049] In this embodiment, in order to ensure that the ground drainage inlet of the drain connector can be exposed at a sufficient height for ground drainage, a limiting support block 700 is provided between the drain core and the drain connector to support the drain connector. The limiting support block 700 can limit the minimum installation height of the drain connector.
[0050] In this embodiment, the drain cover 600 has an annular groove around the mounting hole.
[0051] Unless otherwise stated, if any of the technical solutions disclosed in this utility model discloses a numerical range, then the disclosed numerical range is a preferred numerical range. Any person skilled in the art should understand that the preferred numerical range is merely one among many feasible numerical values that has a more obvious or representative technical effect. Because there are many numerical values, it is impossible to list them all. Therefore, this utility model discloses only some numerical values to illustrate the technical solutions of this utility model. Furthermore, the numerical values listed above should not constitute a limitation on the scope of protection of this utility model.
[0052] If this utility model discloses or relates to mutually fixedly connected parts or structural components, then unless otherwise stated, a fixed connection can be understood as: a detachable fixed connection (e.g., using bolts or screws), or a non-detachable fixed connection (e.g., riveting, welding). Of course, mutually fixed connections can also be replaced by an integral structure (e.g., manufactured by integral molding using a casting process) (except where it is obviously impossible to use an integral molding process).
[0053] In addition, unless otherwise stated, the terms used to indicate positional relationships or shapes in any of the technical solutions disclosed in this utility model above include states or shapes that are similar to, close to, or approximate with them.
[0054] Any component provided by this utility model can be assembled from multiple individual components, or it can be a single component manufactured by a one-piece molding process.
[0055] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the disclosed technical content to create equivalent embodiments. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from its technical solution shall still fall within the protection scope of this utility model.
Claims
1. A drain pipe joint with a break in the drain pipe, characterized in that: It includes a drain connector, a floor drain core, and at least one extension pipe, which are arranged sequentially from top to bottom and detachably connected together; the floor drain core is divided into two drainage chambers by a partition; the upper part of the drain connector is provided with a water inlet interface; one side of the lower end of the drain connector is provided with a drain interface that is inserted and matched with one of the drainage chambers of the floor drain core; and the other side of the lower end of the drain connector is provided with a ground drainage inlet located above the other drainage chamber of the floor drain core.
2. The drain pipe transition joint according to claim 1, characterized in that: The drain connector is equipped with several debris-blocking bars at the ground drainage inlet; the drain core is equipped with flip-up sealing plates at the bottom of the two drainage chambers.
3. The drain pipe transition joint according to claim 1, characterized in that: The lower part of the drain core and the lower part of the extension pipe are both provided with an upper interface, and the upper part of the extension pipe is provided with a lower interface that can be connected to the upper interface.
4. The drain pipe transition joint according to claim 3, characterized in that: The upper and lower interfaces are connected together via a plug-in card.
5. The drain pipe transition joint according to claim 4, characterized in that: The lower interface has a horizontally oriented guide groove on its inner side. One end of the guide groove has a slot that passes through the upper surface of the lower interface. The upper interface has a protrusion that passes through the slot when moving downwards and can slide into the guide groove after rotation.
6. The drain pipe transition joint according to claim 5, characterized in that: The guide groove is provided with an arc-shaped protrusion, and the buckle is provided with an arc-shaped groove that engages with the arc-shaped protrusion.
7. The drain pipe transition joint according to claim 1, characterized in that: It also includes a drain cover, which has a mounting hole in the middle for installing a drain core, and the ground drainage inlet of the drain connector protrudes from above the mounting hole.
8. The drain pipe transition joint according to claim 7, characterized in that: A limiting support block is provided between the drain core and the drain connector to support the drain connector.
9. The drain pipe transition joint according to claim 1, characterized in that: The inner side of the drain cavity that is connected to the drain interface is provided with an anti-detachment groove, and the outer side of the drain interface is provided with a protrusion that engages with the anti-detachment groove.
10. The drain pipe transition joint according to claim 1, characterized in that: It also includes a cap that can be fastened onto the drain connector.