Drainage elbow for municipal construction drainage
By incorporating connecting blocks, locking blocks, and sealing rings, the design solves the problem of cumbersome disassembly and reassembly of hot-melt connections for drainage bends in municipal construction. This enables convenient disassembly and secure connection, enhancing the practicality and durability of drainage bends.
Patent Information
- Application Number
- CN202520778642.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-23
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2035-04-23
AI Technical Summary
The existing hot-melt connection of drainage bends in municipal construction requires cutting and disassembly when damaged, which is time-consuming, labor-intensive, and can easily damage the pipes and the environment.
The design incorporates connecting blocks, locking blocks, reinforcing components, and sealing rings. The locking blocks engage with the locking grooves, and the sealing rings work together to achieve a secure connection between the water pipe and the bend. The disassembly port facilitates easy disassembly.
It improves the connection convenience and practicality of drainage bends, prevents loosening and leakage, simplifies the replacement process, and enhances the stability and sealing of the connection.
Smart Images

Figure CN223855117U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of municipal construction, especially relates to a drainage bend for municipal construction drainage. BACKGROUND
[0002] The drainage bend is a kind of pipe assembly for drainage system, is usually used to connect the different directions of pipe or change the flow direction of pipe, and municipal drainage usually needs to pass through various obstacles (such as building, road, underground facilities etc.) in complex terrain or city layout, so as to effectively change the flow direction of pipe, thereby avoiding these obstacles, and thus the drainage bend for municipal construction drainage needs to be used.
[0003] The drainage bend for municipal construction drainage can be divided into various types, which are right-angle bend, 45-degree bend and variable-angle bend etc., wherein the right-angle bend is the most common type of drainage bend, and is usually used in the place needing sharp turn, such as the connection of pipe and main drainage pipe.
[0004] The connection of drainage bend in prior art mostly depends on hot melt connection, and although the hot melt connection technology can provide relatively stable connection, when pipe is damaged or needs to be replaced, it is often necessary to disassemble through cutting operation, which is time-consuming and laborious, and can easily cause damage to pipe and surrounding environment. UTILITY MODEL CONTENTS
[0005] In order to make up for the above shortcomings, the utility model provides a drainage bend for municipal construction drainage, which aims at improving the problem that when the drainage bend and pipe are connected, it is generally through hot melt, and when damaged, it needs to be replaced by cutting, which is relatively cumbersome.
[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme: a drainage bend for municipal construction drainage, comprising a bend pipe and a water pipe, the two ends of the bend pipe are fixedly connected with connecting pipes, one end of the water pipe is in close contact with one end of the connecting pipe, and the outer wall of the water pipe is provided with a connecting assembly;
[0007] The connecting assembly comprises a connecting block, one side of the connecting block is fixedly connected with the outer wall of the water pipe, the other side of the connecting block is fixedly connected with a clamping block, one side of the clamping block is provided with a reinforcing assembly, a reinforcing pipe is fixedly connected in the connecting pipe, the reinforcing pipe and the connecting pipe are both provided with a lock slot, the clamping block is embedded in the lock slot, a stress slot is formed in the connecting block, and a dismounting opening is formed in the connecting block.
[0008] Further description of the above technical scheme:
[0009] The reinforcing assembly comprises a convex strip, one side of the convex strip is fixedly connected with one side of the clamping block, and the convex strip is embedded in the lock slot.
[0010] As a further description of the above technical solutions:
[0011] The water pipe is fixedly connected with an extension pipe, and the extension pipe is slidably connected inside the reinforcing pipe.
[0012] As a further description of the above technical solutions:
[0013] The reinforcing pipe is internally provided with reinforcing grooves arranged in a symmetrical manner.
[0014] As a further description of the above technical solutions:
[0015] The outer wall of the extension pipe is fixedly connected with a convex ring, and the convex ring is embedded in the reinforcing grooves.
[0016] As a further description of the above technical solutions:
[0017] The outer wall of the extension pipe is fixedly connected with a sealing ring I, and the sealing ring I is attached to the inner wall of the reinforcing pipe.
[0018] As a further description of the above technical solutions:
[0019] The water pipe is fixedly connected with a sealing ring II, and one side of the sealing ring II is attached to one side of the connecting pipe.
[0020] The utility model has the advantages of the following beneficial effects:
[0021] 1. In the utility model, first, the water pipe and the elbow pipe are connected through the clamping blocks on the inner walls of the connecting blocks on both sides of the water pipe, and the clamping blocks are embedded in the locking grooves, and the protrusions are also embedded in the locking grooves to improve the connection strength of the clamping blocks and the locking grooves, so that the elbow pipe is conveniently connected, the problem that the drainage elbow pipe and the pipeline are generally connected through heat melting, and the drainage elbow pipe needs to be cut when it needs to be replaced due to damage is solved, and the convenience of the drainage elbow pipe is improved.
[0022] 2. In the utility model, the extension pipe is locked through the embedding of the convex ring and the reinforcing grooves, and the extension pipe and the reinforcing pipe are sealed through the sealing ring I, so that the connection strength is improved, the problem that the drainage elbow pipe is easily separated when connected through buckling is solved, and the practicability of the drainage elbow pipe is improved. BRIEF DESCRIPTION OF DRAWINGS
[0023] Figure 1 A perspective view of a drainage elbow pipe for municipal construction drainage is provided for the utility model;
[0024] Figure 2 A schematic view of the internal structure of the elbow pipe of the drainage elbow pipe for municipal construction drainage is provided for the utility model;
[0025] Figure 3 A schematic view of the connecting block structure of the drainage elbow pipe for municipal construction drainage is provided for the utility model.
[0026] Legend:
[0027] 1, elbow; 2, water pipe; 3, connecting pipe; 4, reinforcing pipe; 5, locking groove; 6, reinforcing groove; 7, extension pipe; 8, connecting block; 9, stress groove; 10, clamping block; 11, convex strip; 12, dismounting opening; 13, sealing ring I; 14, convex ring; 15, sealing ring II. DETAILED DESCRIPTION
[0028] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.
[0029] Referring to Figure 1 and Figure 2 , the present application provides an embodiment: a drainage elbow for municipal construction drainage, comprising an elbow 1 and a water pipe 2, both ends of the elbow 1 are fixedly connected with connecting pipes 3, the connecting pipes 3 serve to ensure the stable connection between the water pipe 2 and the elbow 1, one end of the water pipe 2 is in close contact with one end of the connecting pipe 3, forming a sealed connection between the pipes to avoid leakage, the outer wall of the water pipe 2 is provided with a connecting assembly, the connecting assembly ensures the firm combination between the water pipe 2 and the elbow 1 through an effective locking mechanism, and ensures the stable operation of drainage;
[0030] The connecting assembly comprises a connecting block 8 fixedly connected to the outer wall of the water pipe 2 on one side and a clamping block 10 fixedly connected on the other side. The main function of the clamping block 10 is to enhance the fixing force between the water pipe 2 and the connecting pipe 3, so as to ensure that the connection is not loose. The clamping block 10 is provided with a reinforcing assembly on one side, which is used to further improve the connection strength and prevent the connection part from loosening due to water flow pressure during use. The connecting pipe 3 is fixedly connected with a reinforcing pipe 4 inside, which increases the strength and stability of the connecting pipe 3. The reinforcing pipe 4 and the connecting pipe 3 are both provided with a locking groove 5 inside. Through the embedding between the locking groove 5 and the clamping block 10, a more stable connection structure is formed to ensure the long-term stability between the water pipe 2 and the elbow pipe 1. When the clamping block 10 is embedded with the locking groove 5, the firmness and sealing effect of the connection are ensured, and loosening or leakage caused by external force is avoided. The connecting block 8 is provided with a stress groove 9 inside, which can effectively disperse the pressure generated during connection, reduce the wear of the connecting part, and prolong its service life. The connecting block 8 is also provided with a dismounting port 12 inside. The design of the dismounting port 12 facilitates the maintenance and replacement operation in the later period, improves the operability and maintenance efficiency of the drainage system, and the reinforcing assembly comprises a protruding strip 11 fixedly connected to one side of the clamping block 10. The protruding strip 11 is embedded with the locking groove 5, which enhances the connection strength between the clamping block 10 and the connecting pipe 3, ensures that the two are more closely connected, improves the reliability of the connecting assembly, and avoids loosening or falling off during long-term use.
[0031] Specifically, when the elbow pipe 1 needs to be connected with the water pipe 2, the connecting block 8 on both sides of the water pipe 2 is precisely designed, the inner wall of the clamping block 10 is tightly embedded with the locking groove 5 of the elbow pipe 1, and the stable connection between the two is ensured. In order to improve the connection strength, the connecting pipe 3 is provided with a reinforcing pipe 4 inside, which further enhances the tensile strength and durability of the connecting pipe 3 when subjected to water flow pressure. In addition, during connection, the protruding strip 11 of the water pipe 2 is also embedded in the locking groove 5, which further improves the connection strength of the clamping block 10 and the locking groove 5, prevents loosening or leakage during long-term use, and when the water pipe 2 needs to be dismounted from the elbow pipe 1, the user only needs to insert his fingers into the dismounting port 12 and use the special design of the stress groove 9 to bend the connecting block 8 by external force, so that the clamping block 10 and the locking groove 5 are tightly connected, and the water pipe 2 and the elbow pipe 1 are easily separated.
[0032] Reference Figure 3The end of the water pipe 2 is fixedly connected with an extension pipe 7. The extension pipe 7 is used to lengthen the access part of the water pipe 2, so that the water pipe 2 and the connecting pipe 3 can be more stably connected. The extension pipe 7 is slidably connected in the reinforcing pipe 4, so that the flexibility and adjustment space between the extension pipe 7 and the reinforcing pipe 4 are enhanced, and the connection requirement at different positions can be adapted. The reinforcing pipe 4 is internally provided with symmetrically arranged reinforcing grooves 6. The reinforcing grooves 6 are helpful to enhance the locking effect between the extension pipe 7 and the reinforcing pipe 4, prevent the sliding part from loosening or falling off, and thus ensure the connection stability. The outer wall of the extension pipe 7 is fixedly connected with a convex ring 14. The convex ring 14 is embedded in the reinforcing groove 6, so that a stable connection structure is formed. The convex ring 14 and the reinforcing groove 6 are tightly matched, so that the connection firmness is improved, and the sliding phenomenon under the action of external force is prevented. The outer wall of the extension pipe 7 is further fixedly connected with a sealing ring I 13. The sealing ring I 13 is in close contact with the inner wall of the reinforcing pipe 4, so that a sealing effect is formed. The water leakage is effectively prevented, the water flow in the water pipe 2 is ensured to be smooth, the end of the water pipe 2 is fixedly connected with a sealing ring II 15. The sealing ring II 15 is used to increase the sealing property between the water pipe 2 and the connecting pipe 3. One side of the sealing ring II 15 is in close contact with one side of the connecting pipe 3. By enhancing the sealing effect, the water tightness of the pipe connection part is ensured, the water leakage is avoided, and the overall reliability and durability are improved.
[0033] Specifically, when the water pipe 2 is connected with the elbow pipe 1, first, one end of the water pipe 2 is inserted into the elbow pipe 1 through the precisely designed extension pipe 7, so that the butt joint between the water pipe 2 and the elbow pipe 1 is stable. After the extension pipe 7 is inserted into the elbow pipe 1, the convex ring 14 is tightly embedded in the reinforcing groove 6 in the elbow pipe 1, so that a firm locking connection is formed. This design effectively prevents the relative displacement between the water pipe 2 and the elbow pipe 1 during use, improves the stability and strength of the connection, and simultaneously, the extension pipe 7 and the reinforcing pipe 4 are tightly in close contact through the sealing ring I 13, so that the perfect sealing of the connection part is ensured, and the water leakage is prevented. In addition, the water pipe 2 and the connecting pipe 3 are secondarily sealed through the sealing ring II 15, so that the water resistance and the sealing property of the overall connection part are further improved, and the leakage problem of the water pipe 2 connection part is effectively avoided.
[0034] Working principle: when the drainage elbow pipe for municipal construction drainage is used, first, the elbow pipe 1 is connected with the water pipe 2. The water pipe 2 and the elbow pipe 1 are embedded in the locking groove 5 through the clamping blocks 10 on the inner walls of the connecting blocks 8 on both sides of the water pipe 2. The connecting pipe 3 is internally provided with the reinforcing pipe 4, so that the strength of the connecting pipe 3 is improved. Then, the convex strip 11 is also embedded in the locking groove 5, so that the connection strength of the clamping block 10 and the locking groove 5 is improved. When disassembly is needed, the connecting block 8 is deformed outward through the stress groove 9 by embedding the fingers in the dismounting opening 12, so that the water pipe 2 and the elbow pipe 1 are separated. The effect that the elbow pipe is convenient to connect is achieved.
[0035] When the water pipe 2 is connected with the elbow pipe 1, first, the water pipe 2 is inserted into the elbow pipe 1 through the extension pipe 7, then the extension pipe 7 is locked by being embedded with the reinforcing groove 6 through the convex ring 14, meanwhile, the extension pipe 7 and the reinforcing pipe 4 are sealed through the sealing ring 1 3, and the water pipe 2 and the connecting pipe 3 are sealed through the sealing ring 2 15, so that the connecting strength is improved and the sealing effect is achieved.
[0036] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application are described in detail, for those skilled in the art, it still can be modified, or part of the technical features of the equivalent replacement, within the spirit and principles of the present application, any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.
Claims
1. A drainage bend for municipal construction drainage, comprising a bend (1) and a water pipe (2), characterized in that: The elbow pipe (1) is fixedly connected with a connecting pipe (3) at both ends, one end of the water pipe (2) is attached to one end of the connecting pipe (3), and a connecting assembly is arranged on the outer wall of the water pipe (2); The connecting assembly comprises a connecting block (8), one side of the connecting block (8) is fixedly connected to the outer wall of the water pipe (2), the other side of the connecting block (8) is fixedly connected with a clamping block (10), one side of the clamping block (10) is provided with a reinforcing assembly, the connecting pipe (3) is fixedly connected with a reinforcing pipe (4) inside, the reinforcing pipe (4) and the connecting pipe (3) are both provided with a locking groove (5) inside, the clamping block (10) is embedded in the locking groove (5), a stress groove (9) is formed in the connecting block (8), and a dismounting opening (12) is formed in the connecting block (8).
2. The drainage bend according to claim 1, characterized in that: The reinforcing assembly comprises a convex strip (11), one side of the convex strip (11) is fixedly connected to one side of the clamping block (10), and the convex strip (11) is embedded in the locking groove (5).
3. The drainage bend according to claim 1, characterized in that: One end of the water pipe (2) is fixedly connected with an extension pipe (7), and the extension pipe (7) is slidingly connected in the reinforcing pipe (4).
4. The drainage bend according to claim 1, characterized in that: The reinforcing pipe (4) is provided with a reinforcing groove (6) symmetrically inside.
5. The drainage bend according to claim 3, characterized in that: The outer wall of the extension pipe (7) is fixedly connected with a convex ring (14), and the convex ring (14) is embedded in the reinforcing groove (6).
6. The drainage bend according to claim 3, characterized in that: The outer wall of the extension pipe (7) is fixedly connected with a sealing ring I (13), and the sealing ring I (13) is attached to the inner wall of the reinforcing pipe (4).
7. The drainage bend according to claim 1, characterized in that: One end of the water pipe (2) is fixedly connected with a sealing ring II (15), and one side of the sealing ring II (15) is attached to one side of the connecting pipe (3).