Adjustable water pipe elbow
By designing an adjustable water pipe elbow with a threaded connection assembly and a limiting ring structure, the problem of traditional water pipe elbows being unable to adjust the angle has been solved, enabling flexible adaptation to different connection angle requirements and improving construction efficiency and sealing performance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-04
- Publication Date
- 2026-04-14
AI Technical Summary
Traditional water pipe elbows have a fixed connection angle and cannot be flexibly adjusted. This results in the need for customization or the addition of redundant pipe sections when non-standard bends are required, and the sealing performance is difficult to guarantee.
An adjustable water pipe elbow is designed, which allows the second threaded connector to rotate and adjust the angle through a threaded connection assembly and a limiting ring structure, and tightens the fastening nut in the appropriate position to adapt to different connection angle requirements. It is equipped with a sealing ring to improve the sealing performance.
It enables flexible adjustment of the connection angle of water pipe elbows, adapting to various pipe laying scenarios, improving construction efficiency and sealing performance, and reducing customization costs.
Smart Images

Figure CN224120860U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of water pipe elbow technology, specifically an adjustable water pipe elbow. Background Technology
[0002] In industrial piping systems and building water supply and drainage projects, pipe elbows are core connecting components for changing the direction of fluid flow, and their angular adaptability directly affects the efficiency of pipe network layout and construction costs. Currently, the commonly used threaded connection elbows on the market generally adopt a design with fixed threaded interfaces at both ends, that is, the elbow body has standard internal / external threads machined at both ends, and a rigid connection with adjacent pipe fittings or equipment is achieved through thread engagement.
[0003] Traditional elbows are manufactured with pre-set fixed bending angles (commonly 45°, 90°, 180°, etc.). When two elbows are connected by threads, the included angle of their axes is uniquely determined by the tightening position of the threads. In actual construction, if non-standard angle requirements are encountered (such as special angles like 67°, 112°, etc.), the construction party has to use customized elbows or add redundant pipe sections for angle compensation. Furthermore, even if the angle is fixed during production, PTFE tape or sealant is usually applied between the threads during assembly to ensure sealing. After the filler tape or sealant is screwed in, a certain deviation in angle may still occur. Traditional elbows cannot adjust the screwed-in angle. Utility Model Content
[0004] This utility model addresses the shortcomings of existing technologies by providing an adjustable water pipe elbow. This water pipe elbow can adjust the connection angle of the water pipe elbow according to the angle requirements of the water pipe layout, so as to flexibly adapt to various pipe layout scenarios with different connection angle requirements.
[0005] To solve the aforementioned technical problems, this utility model provides the following technical solution: an adjustable water pipe elbow, comprising an elbow body with a water flow channel within it. A threaded connection assembly is located at one end of the water flow channel. The threaded connection assembly includes a first threaded connector fixed to the elbow body, a fastening nut threadedly engaged with the first threaded connector, and a second threaded connector. A first limiting ring is located on the outer wall of the second threaded connector, and a second limiting ring is located on the inner wall of the fastening nut. The first limiting ring is clamped between the end face of the first threaded connector and the end face of the second limiting ring. A second threaded portion of the second threaded connector extends from the fastening nut. This water pipe elbow allows the second threaded connector to be rotated and adjusted by loosening the fastening nut. After adjusting to a suitable angle, the fastening nut is tightened again. This allows the orientation of the pipe elbow to be adjusted after the second threaded connector is connected to other pipe fittings, enabling the adjustment of the connection angle according to the required water pipe layout. This allows for flexible adaptation to various pipe layout scenarios with different connection angle requirements.
[0006] In the above technical solution, preferably, a sealing ring is fitted onto the outer wall of the second threaded connector, and the sealing ring is clamped between the end face of the first threaded connector and the first limiting ring. The sealing ring is used to improve the sealing performance between the second threaded connector and the first threaded connector, preventing leakage.
[0007] In the above technical solution, preferably, the first threaded connector is integrally injection molded and fixed to the elbow body, and the first threaded portion of the first threaded connector extends from the elbow body. This structure makes the fixing of the first threaded connector more reliable.
[0008] In the above technical solution, preferably, the second threaded portion is an external thread.
[0009] In the above technical solution, preferably, the second threaded connector is inserted into the first threaded connector near the end of the elbow body.
[0010] In the above technical solution, preferably, a third threaded connector is provided at the other end of the water flow channel.
[0011] In the above technical solution, preferably, the third threaded portion of the third threaded connector is an internal thread.
[0012] In the above technical solution, preferably, the third threaded connector is threadedly matched with the second threaded connector.
[0013] Compared with the prior art, this utility model has the following advantages: by loosening and tightening the fastening nut, the second threaded connector can be rotated to adjust the angle. After adjusting to the appropriate angle, the fastening nut is tightened again, so that after the second threaded connector is connected to other pipe connectors, the orientation of the pipe elbow can be adjusted. The connection angle of the pipe elbow can be adjusted according to the angle requirements of the water pipe layout, so that it can flexibly adapt to various pipe layout scenarios with different connection angle requirements. Attached Figure Description
[0014] Figure 1 This is a structural schematic diagram of an embodiment of the present utility model.
[0015] Figure 2 This is a cross-sectional structural diagram of an embodiment of the present utility model.
[0016] Figure 3 This is an exploded structural diagram of an embodiment of the present utility model. Detailed Implementation
[0017] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments: See below Figures 1 to 3An adjustable water pipe elbow includes an elbow body 1, a water flow channel 2 inside the elbow body 1, and a threaded connection assembly 3 at one end of the water flow channel 2. The threaded connection assembly 3 includes a first threaded connector 4 fixed to the elbow body 1, a fastening nut 5 threadedly engaged with the first threaded connector 4, and a second threaded connector 6. A first limiting ring 7 is provided on the outer wall of the second threaded connector 6, and a second limiting ring 8 is provided on the inner wall of the fastening nut 5. The first limiting ring 7 is clamped between the end face of the first threaded connector 4 and the end face of the second limiting ring 8. The second threaded portion 61 of the second threaded connector 6 extends out from the fastening nut 5. This water pipe elbow allows the second threaded connector 6 to be rotated and adjusted by loosening the fastening nut 5. After adjusting to a suitable angle, the fastening nut 5 is tightened again, allowing the orientation of the pipe elbow to be adjusted after the second threaded connector 6 is connected to other pipe fittings. The connection angle of the water pipe elbow can be adjusted according to the angle requirements of the water pipe layout, making it flexible and adaptable to various pipe layout scenarios with different connection angle requirements.
[0018] In this embodiment, a sealing ring 9 is fitted onto the outer wall of the second threaded connector 6, and the sealing ring 9 is clamped between the end face of the first threaded connector 4 and the first limiting ring 7. The sealing ring 9 is used to improve the sealing performance between the second threaded connector 6 and the first threaded connector 4, and to prevent leakage.
[0019] In this embodiment, the first threaded connector 4 is integrally injection molded and fixed to the elbow body 1, and the first threaded portion 41 of the first threaded connector 4 extends from the elbow body 1. This structure makes the fixing of the first threaded connector 4 more reliable.
[0020] In this embodiment, the second threaded portion 61 is an external thread. It will be readily understood by those skilled in the art that in other embodiments, the second threaded portion 61 may also be an internal thread.
[0021] In this embodiment, the second threaded connector 6 is inserted into the first threaded connector 4 near the elbow body 1.
[0022] In this embodiment, a third threaded connector 10 is provided at the other end of the water flow channel 2.
[0023] In this embodiment, the third threaded portion 101 of the third threaded connector 10 is an internal thread. It will be readily understood by those skilled in the art that the third threaded portion 101 may also be an external thread in other embodiments.
[0024] In this embodiment, the threads of the third threaded connector 10 and the second threaded connector 6 are matched.
[0025] The above are merely preferred embodiments of this utility model. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model.
Claims
1. An adjustable water pipe elbow, comprising an elbow body (1), wherein a water flow channel (2) is provided inside the elbow body (1), and a threaded connection assembly (3) is provided at one end of the water flow channel (2), characterized in that: The threaded connection assembly (3) includes a first threaded connector (4) fixed on the elbow body (1), a fastening nut (5) threadedly engaged with the first threaded connector (4), and a second threaded connector (6). The outer wall of the second threaded connector (6) is provided with a first limiting ring (7), and the inner wall of the fastening nut (5) is provided with a second limiting ring (8). The first limiting ring (7) is clamped between the end face of the first threaded connector (4) and the end face of the second limiting ring (8). The second threaded portion (61) of the second threaded connector (6) extends out from the fastening nut (5).
2. An adjustable water pipe elbow as described in claim 1, characterized in that: The outer wall of the second threaded connector (6) is fitted with a sealing ring (9), which is clamped between the end face of the first threaded connector (4) and the first limiting ring (7).
3. An adjustable water pipe elbow as described in claim 1, characterized in that: The first threaded connector (4) is integrally injection molded and fixed to the elbow body (1), and the first threaded part (41) of the first threaded connector (4) extends out from the elbow body (1).
4. An adjustable water pipe elbow as described in claim 1, characterized in that: The second threaded part (61) is an external thread.
5. An adjustable water pipe elbow as described in claim 1, characterized in that: The second threaded connector (6) is inserted into the first threaded connector (4) near the end of the elbow body (1).
6. An adjustable water pipe elbow as described in claim 1, characterized in that: The other end of the water flow channel (2) is provided with a third threaded connector (10).
7. An adjustable water pipe elbow as described in claim 6, characterized in that: The third threaded portion (101) of the third threaded connector (10) is an internal thread.
8. An adjustable water pipe elbow as described in claim 6, characterized in that: The third threaded connector (10) is threadedly matched with the second threaded connector (6).