Modular drain leak-proof joint
Patent Information
- Application Number
- CN202522165830.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-14
- Publication Date
- 2026-09-18
- Estimated Expiration
- 2035-10-14
AI Technical Summary
[0003]然而目前的模块化排水管防渗漏接头,排水管接头多依赖单一密封结构,容易因密封面贴合不均导致介质侵蚀导致渗漏,并且安装效率低
[0013] The modular drainage pipe anti-leakage joint provided by this utility model is inserted into the drainage pipe through the inner pipe, and the outer surface rubber ring is fitted to the inner wall of the pipe for sealing. The end of the drainage pipe squeezes the elastic sealing ring of the joint block to form a seal, which provides double protection to block the leakage path of the medium. After the fitting ring is fitted at the fitting point, the buckle assembly is quickly tightened to avoid the fitting point from loosening due to pipe vibration or medium pressure, thereby enhancing the sealing stability.
Smart Images

Figure CN224771059U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of municipal drainage engineering technology, specifically to a modular drainage pipe anti-leakage joint. Background Technology
[0002] Municipal drainage engineering is a core component of urban infrastructure, undertaking the crucial functions of rainwater drainage, sewage transportation, and water cycle regulation. It directly impacts urban flood control and drainage capacity, water environment quality, and residents' livelihoods, serving as a vital support for maintaining normal urban operation and sustainable development. Within the municipal drainage system, drainage pipes, as the core carrier of the transport medium, have a history dating back to ancient times. Early pipes were often integral structures built with bricks, terracotta, or concrete. With advancements in materials science and engineering technology, they have gradually evolved into modular pipes primarily made of plastics (such as PVC and HDPE) and fiberglass reinforced plastics. These pipes, due to their lightweight, corrosion resistance, and ease of construction, have become the mainstream choice for modern municipal drainage engineering.
[0003] However, current modular drainage pipe anti-leakage joints mostly rely on a single sealing structure, which is prone to leakage due to uneven sealing surface adhesion leading to medium erosion, and the installation efficiency is low. Utility Model Content
[0004] This utility model aims to solve the problems mentioned in the background art by providing a modular anti-leakage joint for drainage pipes.
[0005] The specific technical solution is as follows:
[0006] A modular drainage pipe leak-proof joint includes: a joint block for connecting drainage pipes, with inner pipes connected to both ends of the joint block; two drainage pipes are provided; elastic sealing rings are respectively bonded to both sides of the joint block; the inner pipes connected to both ends of the joint block are respectively inserted into the drainage pipes corresponding to one end; one end surface of each of the two drainage pipes is respectively attached to one side of the joint block; a fitting ring is provided on the outer surface of the joint block and the drainage pipe fitting area; a snap-fit component is provided on the outer surface of the fitting ring; the snap-fit component corresponds to the fitting surface of the two drainage pipes and the joint block.
[0007] As a preferred embodiment of this utility model, a rubber ring is respectively bonded to one end of the outer surface of the two inner tubes. The rubber ring is inserted through the inner tube and adheres to the inner wall of the drainage pipe. The material of the bonding ring is nitrile rubber.
[0008] As a preferred embodiment of the present invention, the buckle assembly includes a bottom ring, and two bottom rings are provided. The two bottom rings are respectively attached to the lower surface of the fitting ring and correspond to the fitting surfaces of the two drainage pipes and the joint block. A rotating shaft is rotatably installed on one side of each of the two bottom rings, and a hinge plate is rotatably connected to the other end of each of the two bottom rings.
[0009] As a preferred embodiment of this utility model, the other end of the hinge plate is rotatably connected to a buckle ring. The buckle ring is rotatably attached to the other side of the outer surface of the upper half of the fitting ring through the hinge plate. One end of each of the two rotating shafts is rotatably connected to a fastening ring. A retaining ring is fixedly connected between the two fastening rings so that they can rotate synchronously. The surface of the retaining ring is provided with two slots.
[0010] As a preferred embodiment of this utility model, a fixing block is fixedly installed at one end of the upper surface of each of the two buckle rings, and an insertion plate is fixedly installed on the upper surface of the fixing block. A plurality of diamond-shaped grooves are provided on the upper surface of the buckle ring near the fastening ring, and a plurality of diamond-shaped blocks are provided on the lower surface of the fastening ring near the buckle ring. The diamond blocks correspond to the diamond-shaped grooves.
[0011] As a preferred embodiment of this utility model, by rotating the fastening ring, the diamond-shaped block on the lower surface can be inserted into the diamond-shaped groove. The slot provided on the surface of the retaining ring corresponds to the insertion plate on the fixing block. The insertion plate is inserted into the slot. After the insertion plate is fully inserted into the slot, the bolt passes through the insertion plate and the retaining ring and is tightened to complete the fixation.
[0012] This utility model has the following beneficial effects:
[0013] The modular drainage pipe anti-leakage joint provided by this utility model is inserted into the drainage pipe through the inner pipe, and the outer surface rubber ring is fitted to the inner wall of the pipe for sealing. The end of the drainage pipe squeezes the elastic sealing ring of the joint block to form a seal, which provides double protection to block the leakage path of the medium. After the fitting ring is fitted at the fitting point, the buckle assembly is quickly tightened to avoid the fitting point from loosening due to pipe vibration or medium pressure, thereby enhancing the sealing stability. Attached Figure Description
[0014] Figure 1 A schematic diagram of the overall structure of the modular drainage pipe anti-leakage joint provided in this embodiment of the utility model;
[0015] Figure 2 A schematic diagram of the fitting ring structure of the modular drainage pipe anti-leakage joint provided in an embodiment of this utility model;
[0016] Figure 3 A schematic diagram of the cross-sectional structure of the modular drainage pipe anti-leakage joint provided in this embodiment of the utility model;
[0017] Figure 4 A schematic diagram of the joint block structure of the modular drainage pipe anti-leakage joint provided in the embodiment of this utility model;
[0018] Figure 5 A schematic diagram of the snap-fit assembly structure of the modular drainage pipe anti-leakage joint provided in this embodiment of the utility model;
[0019] Figure 6 A schematic diagram of the snap-fit structure of the modular drainage pipe anti-leakage joint provided in this embodiment of the utility model.
[0020] In the attached image:
[0021] 1. Connector block; 101. Inner tube; 102. Rubber ring; 103. Elastic sealing ring;
[0022] 2. Drainage pipes;
[0023] 3. Fitting ring;
[0024] 4. Snap-fit assembly; 401. Bottom ring; 402. Hinge plate; 403. Snap-fit ring; 404. Fixing block; 405. Fastening ring; 406. Snap ring; 407. Rotating shaft; 408. Diamond block; 409. Diamond groove; 410. Insert plate; 411. Slot. Detailed Implementation
[0025] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.
[0026] The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual images. They should not be construed as limiting the scope of this patent. To better illustrate the embodiments of this utility model, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.
[0027] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," "right," "inner," and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.
[0028] In the description of this utility model, unless otherwise explicitly specified and limited, the term "connection" or similar designation indicating the connection relationship between components should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0029] Example 1
[0030] The modular drainage pipe anti-leakage joint provided in this embodiment, such as Figures 1-6 As shown, the device includes: a connector block 1 for connecting drainage pipes 2; inner tubes 101 connected to both ends of the connector block 1; two drainage pipes 2; elastic sealing rings 103 glued to both sides of the connector block 1; the inner tubes 101 connected to both ends of the connector block 1 being inserted into the corresponding drainage pipes 2; one end of each of the two drainage pipes 2 being attached to one side of the connector block 1; a fitting ring 3 is fitted on the outer surface of the fitting area between the connector block 1 and the drainage pipes 2; a snap-fit component 4 is provided on the outer surface of the fitting ring 3, corresponding to the fitting surfaces of the two drainage pipes 2 and the connector block 1. Rubber rings 102 are glued to one end of the outer surface of each of the two inner tubes 101, and the rubber rings 102 are inserted through the inner tubes 101 and fitted to the inner wall of the drainage pipes 2; the fitting rings 3 are made of nitrile rubber.
[0031] Through the design of the connector block 1, elastic sealing ring 103, inner tube 101, and snap fastener 4, the inner tubes 101 at both ends of the connector block 1 are inserted into the two drainage pipes 2 respectively. The rubber ring 102 on the outer surface of the inner tube 101 is inserted and fits against the inner wall of the drainage pipe 2 to form a seal. The elastic sealing rings 103 on both sides of the connector block 1 are fitted to one end of the drainage pipe 2. The elastic sealing rings 103 are compressed and deformed to form a seal. Then, a fitting ring 3 is fitted at the joint between the connector block 1 and the drainage pipe 2. The snap fastener 4 is set on the outer surface of the fitting ring 3 corresponding to the fitting surface to fasten the connector block 1 and the drainage pipe 2, restricting the relative displacement between the two. This can prevent the drainage medium from leaking from the inner wall of the inner tube 101 and the inner wall of the drainage pipe 2, and from the joint between the drainage pipe 2 and the connector block 1. The snap fastener 4 can prevent the joint from loosening due to pipe vibration or medium pressure during long-term use, thus improving the anti-leakage effect.
[0032] Example 2
[0033] The modular drainage pipe anti-leakage joint provided in this embodiment, such as Figures 5-6As shown, the assembly includes: a snap-fit assembly 4 comprising two bottom rings 401, which are respectively attached to the lower surface of the fitting ring 3 and correspond to the contact surfaces of the two drain pipes 2 and the joint block 1. A rotating shaft 407 is rotatably mounted on one side of each of the two bottom rings 401, and a hinge plate 402 is rotatably connected to the other end of each bottom ring 401. A snap-fit ring 403 is rotatably connected to the other end of the hinge plate 402. The snap-fit ring 403 is rotatably attached to the other side of the upper outer surface of the fitting ring 3 via the hinge plate 402. A fastening ring 405 is rotatably connected to one end of each of the two rotating shafts 407, and a retaining ring 406 is fixedly connected between the two fastening rings 405 to enable them to rotate synchronously. The retaining ring 406 has two slots 411 on its surface. Two retaining rings 403 have a fixing block 404 fixedly installed at one end of their upper surfaces. An insertion plate 410 is fixedly installed on the upper surface of the fixing block 404. The upper surface of the retaining ring 403 near the fastening ring 405 has multiple diamond-shaped grooves 409. The lower surface of the fastening ring 405 near the retaining ring 403 has multiple diamond-shaped blocks 408, which correspond to the diamond-shaped grooves 409. By rotating the fastening ring 405, the diamond-shaped blocks 408 on the lower surface can be inserted into the diamond-shaped grooves 409. The slot 411 on the surface of the retaining ring 406 corresponds to the insertion plate 410 on the fixing block 404. The insertion plate 410 is inserted into the slot 411. After the insertion plate 410 is fully inserted into the slot 411, a bolt is used to pass through the insertion plate 410 and the retaining ring 406 and tighten it to complete the fixation.
[0034] Through the design of the snap ring 403, insertion plate 410, and rhombus block 408, the inner tubes 101 at both ends are inserted into the drainage pipes 2 at both ends, respectively. The two bottom rings 401 are attached to the corresponding contact surfaces on the lower surface of the contact ring 3. The snap ring 403 is rotated by the hinge plate 402, so that the snap ring 403 is attached to the outer surface of the upper half of the contact ring 3. By pulling the snap ring 406, the fastening ring 405 is driven to rotate around the rotation shaft 407, so that the rhombus block 408 on the lower surface of the fastening ring 405 is... The diamond groove 409 on the snap ring 403 is inserted to improve the fixing effect of the fitting ring 3. Then, the snap ring 406 is inserted by aligning the slot 411 on the surface of the snap ring 406 with the insertion plate 410 on the fixing block 404. The bolt is then inserted through the insertion plate 410 and the snap ring 406 and tightened to complete the fixing. This allows for the quick fixing of the fitting ring 3 to the two drainage pipes 2, thereby enhancing the sealing stability of the joint block 1 and the drainage pipe 2, preventing leakage from the fitting ring 3, and facilitating disassembly and assembly during later maintenance.
[0035] In summary, the modular drainage pipe anti-leakage joint provided in this embodiment has the following advantages: the snap-fit component 4 can improve the installation efficiency, and the fitting ring 3, inner pipe 101, and elastic sealing ring 103 can improve the sealing of the drainage pipe 2 during installation, thus preventing leakage.
[0036] In use, the inner tubes 101 at both ends of the connector block 1 are inserted into the two drain pipes 2 respectively. The rubber rings 102 on the outer surface of the inner tubes 101 are inserted and fit against the inner wall of the drain pipe 2 to form a seal. The elastic sealing rings 103 on both sides of the connector block 1 are attached to one end of the drain pipe 2. The seal is formed by the compression deformation of the elastic sealing rings 103. Then, a fitting ring 3 is fitted at the joint between the connector block 1 and the drain pipe 2. The two bottom rings 401 are attached to the corresponding fitting surfaces on the lower surface of the fitting ring 3. The hinge plate 402 is used to connect the two bottom rings 401. Rotate the snap ring 403 to make it fit against the outer surface of the upper half of the fitting ring 3. Pull the snap ring 406 to drive the fastening ring 405 to rotate around the rotating shaft 407, so that the diamond block 408 on the lower surface of the fastening ring 405 is engaged in the diamond groove 409 on the snap ring 403, improving the fixing effect of the fitting ring 3. Then, align the slot 411 on the surface of the snap ring 406 with the insertion plate 410 on the fixing block 404 and insert it. Use bolts to pass through the insertion plate 410 and the snap ring 406 and tighten them to complete the fixing.
[0037] The above are merely preferred embodiments of the present utility model and are not intended to limit the implementation methods and protection scope of the present utility model. Those skilled in the art should realize that any equivalent substitutions and obvious changes made based on the description and illustrations of the present utility model should be included within the protection scope of the present utility model.
Claims
1. Modular drain leak-proof joint, characterized in that, include: A connector block (1) is used to connect a drainage pipe (2). The connector block (1) has an inner tube (101) connected to both ends. There are two drainage pipes (2). An elastic sealing ring (103) is glued to both sides of the connector block (1). The inner tube (101) connected to both ends of the connector block (1) is inserted into the drainage pipe (2) corresponding to one end. The surfaces of the two drainage pipes (2) are respectively attached to one side of the connector block (1). A fitting ring (3) is provided on the outer surface of the fitting point between the connector block (1) and the drainage pipe (2). A buckle assembly (4) is provided on the outer surface of the fitting ring (3). The buckle assembly (4) corresponds to the fitting surface of the two drainage pipes (2) and the surface of the connector block (1).
2. The modular drain leak resistant coupling of claim 1, wherein, Rubber rings (102) are respectively bonded to one end of the outer surface of the two inner tubes (101). The rubber rings (102) are inserted through the inner tubes (101) and attached to the inner wall of the drainage pipe (2). The material of the attachment ring (3) is nitrile rubber.
3. The modular drain leak resistant coupling of claim 1, wherein, The buckle assembly (4) includes a bottom ring (401), and two bottom rings (401) are provided. The two bottom rings (401) are respectively attached to the lower surface of the fitting ring (3) and correspond to the fitting surfaces of the two drainage pipes (2) and the joint block (1). A rotating shaft (407) is rotatably installed on one side of each of the two bottom rings (401), and a hinge plate (402) is rotatably connected to the other end of each of the two bottom rings (401).
4. The modular drain leak resistant coupling of claim 3, wherein, The other end of the hinge plate (402) is rotatably connected to a buckle ring (403). The buckle ring (403) is rotatably attached to the other side of the upper half of the outer surface of the fitting ring (3) through the hinge plate (402). One end of each of the two rotating shafts (407) is rotatably connected to a fastening ring (405). A retaining ring (406) is fixedly connected between the two fastening rings (405) so that they can rotate synchronously. The surface of the retaining ring (406) is provided with two slots (411).
5. The modular drain leak resistant coupling of claim 4, wherein, A fixing block (404) is fixedly installed on one end of the upper surface of each of the two buckle rings (403). An insertion plate (410) is fixedly installed on the upper surface of the fixing block (404). A plurality of diamond grooves (409) are provided on the upper surface of the buckle ring (403) near the fastening ring (405). A plurality of diamond blocks (408) are provided on the lower surface of the fastening ring (405) near the buckle ring (403). The diamond blocks (408) correspond to the diamond grooves (409).
6. The modular drain leak resistant coupling of claim 5, wherein, By rotating the fastening ring (405), the diamond-shaped block (408) on the lower surface can be inserted into the diamond-shaped groove (409). The slot (411) on the surface of the retaining ring (406) corresponds to the insertion plate (410) on the fixing block (404). The insertion plate (410) is inserted into the slot (411). After the insertion plate (410) is fully inserted into the slot (411), the bolt passes through the insertion plate (410) and the retaining ring (406) and is tightened to complete the fixation.