一种不锈钢复合管连接弯头结构
By designing a stainless steel composite pipe connection elbow structure, and adopting internal and external threaded connections and self-adaptive sealing components, the problem of traditional elbow structures being unable to cope with connection angle errors has been solved, achieving stability and flexibility in angle adjustment and sealing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LINYI HUACHUANG NEW BUILDING MATERIALS CO LTD
- Filing Date
- 2025-09-24
- Publication Date
- 2026-07-17
AI Technical Summary
Traditional fixed-angle stainless steel composite pipe connection elbow structures are difficult to cope with different connection angles and design errors, leading to installation difficulties and affecting system safety and sealing.
A stainless steel composite pipe connection elbow structure was designed, comprising an elbow pipe, an angle-adjusting sleeve, an angle-adjusting ball head pipe, an inner connector, and a fixing and locking assembly. Angle adjustment and locking are achieved through internal and external threaded connections and an adaptive sealing assembly, ensuring the stability and sealing of the connection.
It enables flexible angle adjustment of elbow pipes and stainless steel composite pipes, improves the versatility and sealing reliability of the product, prevents leakage, and provides adaptive maintenance of sealing effect when the seals age.
Smart Images

Figure CN224516278U_ABST
Abstract
Claims
1. A stainless steel composite pipe connecting elbow structure, characterized by, The device includes an elbow pipe (1) that is bent at a 90-degree angle and opens forward and downward. Angle-adjusting sleeves (2) are connected to the front and lower openings of the elbow pipe (1). Both angle-adjusting sleeves (2) are composed of a ball-shaped sleeve and a tapered tube. Angle-adjusting ball-shaped tubes (3) are rotatably connected to the ends of the two angle-adjusting sleeves (2) away from the elbow pipe (1). Internal connectors (4) are connected to the ends of the two angle-adjusting sleeves (2) and the two internal connectors (4). A fixed connection is provided between each angle-adjusting sleeve (2) and each internal connector (4). The fixed locking assembly is used to fix the position between the angle adjustment tube sleeve (2) and the inner connector (4). An adaptive sealing assembly is provided between the two fixed locking assemblies and the inner connector (4) to fix the seal between the locking assembly and the inner connector (4). An outer connecting sleeve (5) is sleeved on the end of the two inner connectors (4) away from the angle adjustment ball tube (3). A limit ring (6) is connected to the side of the cylindrical outer wall of the two inner connectors (4) away from the angle adjustment ball tube (3), and the two limit rings (6) are respectively locked inside the two outer connecting sleeves (5).
2. A stainless steel composite pipe connecting elbow structure according to claim 1, wherein The fixing locking assembly includes a fixing threaded sleeve (7) and a sealing ball shell (8). The fixing threaded sleeve (7) is threadedly connected to the side of the inner connector (4) near the angle-adjusting ball tube (3). The sealing ball shell (8) is connected to the end of the fixing threaded sleeve (7) near the angle-adjusting ball tube (3).
3. The stainless steel composite pipe connecting elbow structure according to claim 2, wherein The sealing spherical shell (8) is snapped onto the outside of the ball sleeve of the angle adjustment tube sleeve (2). An inner sealing gasket (9) is provided inside the outer wall of the angle adjustment ball head tube (3), and the inner sealing gasket (9) is located between the angle adjustment tube sleeve (2) and the angle adjustment ball head tube (3).
4. The stainless steel composite pipe coupling elbow structure according to claim 3, wherein An outer sealing gasket (10) is provided inside the inner wall of the sealing spherical shell (8), and the outer sealing gasket (10) is located between the ball sleeve of the adjusting tube sleeve (2) and the sealing spherical shell (8).
5. A stainless steel composite pipe connecting elbow structure according to claim 4, wherein The adaptive sealing assembly includes a sealing ring (11), an expansion sealing gasket (14), and a clamping sealing gasket (16). The inner connector (4) has a sealing ring (11) connected to the outer wall near the adjusting ball head tube (3), and the sealing ring (11) is snapped into the inside of the fixed threaded sleeve (7).
6. A stainless steel composite pipe connecting elbow structure according to claim 5, wherein A sealing groove (12) is provided on the outer wall of the cylindrical sealing ring (11). The inner side of the sealing groove (12) away from the angle-adjusting ball head tube (3) is connected to multiple connecting grooves (13), and the multiple connecting grooves (13) are all opened on the outer wall of the sealing ring (11) away from the angle-adjusting ball head tube (3).
7. A stainless steel composite pipe coupling elbow structure as set forth in claim 6, wherein An expansion sealing gasket (14) is provided inside the sealing ring (11). The end of the expansion sealing gasket (14) away from the adjusting ball head tube (3) is connected to a plurality of connecting pipes (15). The end of the plurality of connecting pipes (15) away from the expansion sealing gasket (14) is connected to a clamping sealing gasket (16), and the clamping sealing gasket (16) is located between the sealing ring (11) and the fixing threaded sleeve (7).