Elbow with connected structure

By designing an integrated elbow structure, using double and triple bends, heat fusion joints, and nested connections, the problems of difficult installation and poor sealing of traditional elbows in complex pipeline layouts are solved, achieving efficient and stable pipeline connections.

CN224120803UActive Publication Date: 2026-04-14JINGCHENG BOGAO (SUZHOU) TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JINGCHENG BOGAO (SUZHOU) TECHNOLOGY CO LTD
Filing Date
2025-05-12
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

Traditional elbows have a simple structure and limited functions. In complex pipeline layouts, multiple elbows of different types need to be combined and installed, which increases the installation difficulty and workload. Furthermore, the connection of multiple elbows is prone to problems such as poor sealing and instability.

Method used

An integrated elbow structure was designed, including double-headed and triple-headed bends, heat fusion joints, connectors, positioning grooves, slots, and plates. Through heat fusion connection and nested connection methods, diverse pipe connections can be achieved, enhancing sealing and stability.

Benefits of technology

It improves installation efficiency, ensures the sealing and stability of the piping system, extends service life, simplifies the installation process, and reduces maintenance costs.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224120803U_ABST
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Abstract

The utility model discloses an elbow with a conjoined structure, which mainly comprises a conjoined elbow main body, the front side of the elbow is provided with an internal thread joint for conveniently connecting a component with an external thread, the middle of the elbow is provided with a connecting rod, and two sides of the conjoined elbow main body can be provided with a double-end elbow or a three-end elbow, so that the requirements of different pipeline directions can be met. The top of the double-end elbow and the top of the three-end elbow are provided with the hot melting joints for hot melting connection, the connecting pieces on the two sides of the elbow are provided with the positioning grooves, are connected with the embedding plates on the connecting rods in an embedded mode and are further fixed through the pins, and due to the structural design, the elbow is more convenient to install in a complex pipeline layout, complexity caused by combination of a plurality of single elbows is reduced, and meanwhile the cost is reduced. The connecting stability and sealing performance are improved, the leakage risk is reduced, the overall reliability is enhanced, the problems of an existing elbow in the installation and use process are effectively solved, and good application prospects are achieved.
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Description

Technical Field

[0001] This utility model belongs to the technical field of pipe connection components, specifically relating to an elbow with an integrated structure. Background Technology

[0002] An integrated elbow is a type of pipe fitting typically used to change the flow direction of fluid in a piping system. Structurally, it connects two elbow sections together to form a relatively fixed, integrated structure, unlike a single, independent elbow fitting. It is generally used in specific piping layout scenarios, such as when space is limited, continuous changes in fluid flow direction are required, and high requirements are placed on the stability and compactness of the pipe connection. In these situations, integrated elbows can better ensure reliable pipe connections and smooth fluid transport. They are also relatively more convenient and efficient to install, reducing installation errors that may occur when connecting multiple independent elbows. They are commonly found in many piping systems, such as industrial pipelines and building water supply and drainage pipelines.

[0003] However, traditional elbows have a relatively simple structure and limited functionality. In some complex pipeline layouts, multiple elbows of different types need to be combined and installed. This not only increases the difficulty and workload of installation, but also makes it easy for the connection between multiple elbows to have problems such as poor sealing and instability. Utility Model Content

[0004] The purpose of this utility model is to provide an elbow with an integrated structure to solve the problems mentioned in the background art, which are that the traditional elbow structure is relatively simple and has limited functions. In some complex pipeline layouts, multiple elbows of different types need to be combined and installed, which not only increases the difficulty and workload of installation, but also makes it easy for the connection between multiple elbows to have problems such as poor sealing and poor stability.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a bend with an integrated structure, comprising an integrated bend body;

[0006] An internal threaded connector is provided at the front side of the main body of the integrated elbow, and a connecting rod is provided at the middle position of the main body of the integrated elbow.

[0007] The main body of the integrated elbow is provided with double-headed bends on both the left and right sides, and the main body of the integrated elbow may also be provided with triple-headed bends.

[0008] Preferably, a heat fusion joint is provided at the top of the double-ended bend, and two heat fusion joints are provided at the top of the triple-ended bend.

[0009] Preferably, connectors are provided on the left and right sides of the double-headed bend and the triple-headed bend, and positioning grooves are provided on the upper and lower sides of the connectors.

[0010] Preferably, the connecting rod has grooves on its upper and lower sides, and plates are provided on its upper and lower sides, with the plates nested and connected to the grooves and positioning grooves.

[0011] Preferably, a pin hole is provided inside the positioning groove, connecting rod and insert plate, and a pin is provided inside the pin hole.

[0012] Compared with the prior art, this utility model provides an elbow with a one-piece structure, which has the following advantages:

[0013] By incorporating double-ended bends, triple-ended bends, heat fusion joints, connectors, positioning grooves, recesses, and plates, the integrated elbow body features double-ended bends on both sides and can also include triple-ended bends. This versatility allows for connection requirements across different pipe layouts and routes. In complex piping systems, the appropriate bend type can be flexibly selected, reducing the hassle of frequently changing different types of elbows due to complex pipe routes and improving installation efficiency. Double-ended bends have one heat fusion joint at the top, while triple-ended bends have two. These heat fusion joints allow for connection with other pipe components via heat fusion. The connection method provides excellent sealing performance, effectively preventing leaks at pipe joints and ensuring the sealing and stability of the entire pipeline system. The connectors on both sides of the double-ended and triple-ended bends have positioning grooves on the upper and lower sides, while the connecting rod has recessed grooves and insert plates on both sides. These insert plates are nested with the recessed grooves and positioning grooves. This nested connection structure enhances the connection strength between components, preventing displacement or loosening when the bend is subjected to internal pipeline pressure and external environmental influences. This ensures the overall stability of the bend structure and extends its service life. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model.

[0015] Figure 2 This is a schematic diagram of the double-ended bend in this utility model.

[0016] Figure 3 This is a schematic diagram of the three-headed bend in this utility model.

[0017] Figure 4 This is a schematic diagram of the connecting rod in this utility model.

[0018] Figure 5 This is a schematic diagram of the panel structure in this utility model.

[0019] In the diagram: 1. Integrated elbow body; 2. Internal threaded connector; 3. Connecting rod; 4. Pin; 5. Double-ended bend; 6. Triple-ended bend; 7. Connector; 8. Positioning groove; 9. Heat fusion connector; 10. Embedded groove; 11. Insert plate; 12. Pin hole. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] This utility model provides, for example Figure 1-5 The elbow shown has a one-piece structure, including an integrated elbow body 1;

[0022] An internal threaded connector 2 is provided at the front side of the main body 1 of the integrated elbow, and a connecting rod 3 is provided at the middle position of the main body 1 of the integrated elbow.

[0023] Double-headed bends 5 are provided on the left and right sides of the main body 1 of the integrated elbow. The main body 1 of the integrated elbow may also be provided with triple-headed bends 6.

[0024] A heat fusion joint 9 is provided at the top of the double-ended bend 5, and two heat fusion joints 9 are provided at the top of the triple-ended bend 6.

[0025] Connectors 7 are provided on the left and right sides of the double-headed bend 5 and the triple-headed bend 6, and positioning grooves 8 are provided on the upper and lower sides of the connectors 7.

[0026] The upper and lower sides of the connecting rod 3 are respectively provided with grooves 10, and the upper and lower sides of the connecting rod 3 are respectively provided with plates 11. The plates 11 are nested and connected with the grooves 10 and the positioning grooves 8.

[0027] A pin hole 12 is provided inside the positioning groove 8, the connecting rod 3 and the insert plate 11, and a pin 4 is provided inside the pin hole 12.

[0028] In this embodiment, the specific implementation steps of an elbow with an integrated structure include carefully inspecting all components such as the integrated elbow body 1, internal threaded connector 2, connecting rod 3, double-ended bend 5, triple-ended bend 6, heat fusion connector 9, connector 7, insert plate 11, and pin 4 to ensure they are complete and free from damage, deformation, or other defects. It is crucial to ensure that the dimensions of each component meet design requirements, particularly the fit dimensions between the insert plate 11 and the groove 10 and positioning groove 8, and that the pin hole 12 is compatible with the pin 4. Based on the actual pipeline layout and routing, and considering the structural characteristics of the elbow, it is determined whether to use a double-ended bend 5 or a triple-ended bend 6. At the same time, clearly define the installation position and connection sequence of each elbow component in the entire pipeline system. Accurately embed the insert 11 into the pre-cut grooves 10 on the upper and lower sides of the connecting rod 3, ensuring a tight fit without any looseness. The fitting accuracy between the insert 11 and the groove 10 is crucial for the stability of the overall elbow structure. Connect the double-ended bend 5 or triple-ended bend 6 to the connecting rod 3 with the inserted insert 11 installed via the positioning groove 8 on the connector 7. During the connection process, ensure that the positioning groove 8 and the insert 11 are accurately aligned and tightly nested, making the connection between the bend and the connecting rod stable. Then, insert the pin 4... Insert the pins 4 into the pre-drilled pin holes 12 inside the positioning groove 8, connecting rod 3, and insert plate 11 to further secure the connection between the components. Ensure the pins 4 are fully inserted to provide a reliable mechanical connection and prevent loosening or displacement of components during use. If it is necessary to connect the elbow to a pipe component with external threads, use the female threaded connector 2. Tighten the female threaded connector 2 to the corresponding external threaded pipe component according to the specified torque requirements to ensure a secure connection and prevent leakage. When connecting to pipe components suitable for heat fusion bonding, use a double-ended bend 5 or a triple-ended bend. For the heat fusion joint 9 at the top of pipe 6, firstly, use a special heat fusion tool to heat the heat fusion joint 9 and the end of the pipe to be connected. After heating to the specified temperature and time, quickly align the two and hold for a certain period of time until the heat fusion part is fully fused and cooled and solidified to form a reliable sealed connection. After completing the connection between the elbow and the pipe, conduct a visual inspection of the entire installation area to check whether the connection between each component is tight, whether there are gaps or misalignments, and whether the heat fusion connection is flat, smooth, and free of defects such as bubbles and cracks, to ensure that the elbow can work stably and reliably during long-term use.

[0029] like Figure 1-5As shown, double-headed bends 5 are respectively provided on the left and right sides of the main body 1 of the integrated elbow. The main body 1 of the integrated elbow can also be provided with triple-headed bends 6. A heat fusion joint 9 is provided at the top of the double-headed bend 5. Two heat fusion joints 9 are provided at the top of the triple-headed bend 6. Connectors 7 are respectively provided on the left and right sides of the double-headed bend 5 and the triple-headed bend 6. Positioning grooves 8 are respectively opened on the upper and lower sides of the connectors 7. The upper and lower sides of the connecting rod 3 are respectively opened with grooves 10. The upper and lower sides of the connecting rod 3 are respectively provided with plates 11. The plates 11 are nested and connected with the grooves 10 and the positioning grooves 8.

[0030] Preferably, the main body 1 of the integrated elbow is equipped with double-ended elbows 5 on both sides, and can also be equipped with triple-ended elbows 6. This versatility can meet the connection requirements of different pipeline layouts and routes. In complex pipeline systems, the appropriate elbow type can be flexibly selected, reducing the trouble of frequently changing different types of elbows due to complex pipeline routes and improving installation efficiency. The double-ended elbow 5 is equipped with a heat fusion joint 9 at the top, and the triple-ended elbow 6 is equipped with two heat fusion joints 9 at the top. The heat fusion joints 9 can be connected to other pipeline components by heat fusion connection, which provides excellent sealing performance. This effectively prevents leakage at pipe connections, ensuring the sealing and stability of the entire pipeline system. The connecting parts 7 on the left and right sides of the double-ended bend 5 and the three-ended bend 6 are provided with positioning grooves 8 on the upper and lower sides. The connecting rod 3 is provided with grooves 10 on the upper and lower sides and is equipped with insert plates 11. The insert plates 11 are nested with the grooves 10 and positioning grooves 8. This nested connection structure enhances the connection strength between the various components, making it less likely for the components to shift or loosen when the bend is subjected to internal pipeline pressure and external environmental influences. This ensures the overall stability of the bend structure and extends its service life.

[0031] like Figure 1-5 As shown, pin holes 12 are provided inside the positioning groove 8, connecting rod 3 and insert plate 11, and pins 4 are provided inside the pin holes 12.

[0032] Optionally, the pin 4 passes through the corresponding pin hole 12 on the positioning groove 8, connecting rod 3, and insert plate 11, tightly fixing these three components together. This connection method greatly enhances the connection strength between the double-ended bend 5 or triple-ended bend 6 and the connecting rod 3, effectively preventing loosening or separation between the connector 7 and the connecting rod 3 due to external forces such as fluid impact and vibration during pipeline system operation. This ensures the stability and reliability of the bend structure and guarantees the safe and stable operation of the entire pipeline system. The cooperation between the pin hole 12 and the pin 4 plays a role in precise positioning. During installation, by inserting the pin 4 into the pin hole 12, it is possible to quickly... Accurately determining the relative positions of each component ensures precise nesting of the insert plate 11 and the positioning groove 8, simplifying the installation process, reducing adjustment time, and improving installation efficiency. It also guarantees the accuracy of the component installation positions, contributing to improved overall elbow assembly quality. When a component of the elbow is damaged and requires repair or replacement, the detachable nature of the pin 4 allows for easy separation of the relevant component by simply removing the pin 4 from the pin hole 12. This enables individual repair or replacement of the damaged component without dismantling the entire elbow structure, reducing maintenance costs and difficulty, and improving the maintenance efficiency of the pipeline system.

[0033] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A type of elbow with a one-piece structure, comprising an integral elbow body (1); An internal threaded connector (2) is provided at the front side of the integrated elbow body (1), and a connecting rod (3) is provided at the middle position of the integrated elbow body (1); Its features are: The main body of the integrated elbow (1) is provided with double-headed elbows (5) on the left and right sides respectively, and the main body of the integrated elbow (1) may also be provided with triple-headed elbows (6).

2. The elbow with an integrated structure according to claim 1, characterized in that: A heat fusion joint (9) is provided at the top of the double-headed bend (5), and two heat fusion joints (9) are provided at the top of the three-headed bend (6).

3. The elbow with an integrated structure according to claim 2, characterized in that: Connectors (7) are provided on the left and right sides of the double-headed bend (5) and the three-headed bend (6), and positioning grooves (8) are provided on the upper and lower sides of the connectors (7).

4. The elbow with an integrated structure according to claim 3, characterized in that: The connecting rod (3) has grooves (10) on its upper and lower sides respectively, and a plate (11) is provided on its upper and lower sides respectively. The plate (11) is nested and connected with the groove (10) and the positioning groove (8).

5. The elbow with an integrated structure according to claim 4, characterized in that: The positioning groove (8), the connecting rod (3) and the insert plate (11) are provided with pin holes (12), and pins (4) are provided inside the pin holes (12).