Socket type sealing joint for glass steel pipe fitting

By using the mechanical locking mechanism and double-layer sealing structure of the snap-fit ​​components, the problems of easy loosening and insufficient sealing of the socket connection of FRP pipe fittings are solved, achieving a stable connection and efficient sealing, thus improving the safety and practicality of FRP pipe fittings.

CN224214912UActive Publication Date: 2026-05-08ZHOUZHI ENVIRONMENTAL PROTECTION HUBEI CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHOUZHI ENVIRONMENTAL PROTECTION HUBEI CO LTD
Filing Date
2025-06-23
Publication Date
2026-05-08

AI Technical Summary

Technical Problem

Traditional FRP pipe fittings with socket connections are prone to loosening and falling off due to vibration, impact, and temperature changes, leading to leaks and safety hazards, and their sealing performance is insufficient.

Method used

It adopts a mechanical locking structure and symmetrical design with snap-fit ​​components, combined with double-layer sealing rings, and achieves physical locking through the cooperation of L-shaped snap blocks and springs, which enhances connection stability and dynamically compensates for installation errors through double-layer sealing rings.

Benefits of technology

It effectively prevents fiberglass pipe connections from loosening due to vibration or impact, improves connection reliability and sealing performance, reduces leakage risk, and increases installation efficiency and service life.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a socket type sealing joint for a glass steel pipe fitting, which relates to the field of pipeline clamping and comprises a first pipeline, a first connecting block, a second connecting block and a second pipeline, the first connecting block is fixedly connected to the surface of the first pipeline, and the second connecting block is slidably connected to the surface of the first connecting block. The first pipeline is fixedly connected to the surface of the first connecting block, the second pipeline is fixedly connected to the surface of the second connecting block, each clamping assembly comprises a clamping block, a handle, an L-shaped clamping block, a supporting ring, a spring, a containing groove, an L-shaped groove and a limiting groove, the L-shaped grooves are formed in the surface of the first connecting block, and the L-shaped clamping blocks are fixedly connected to the surface of the second connecting block. The L-shaped clamping block is slidably connected to the inner wall of the L-shaped groove, the limiting groove is formed in the surface of the L-shaped clamping block, and according to the design, through mechanical locking of the clamping assembly and dynamic compensation of the double sealing rings, the problems that traditional socket and spigot connection is prone to falling off due to vibration and impact, and the sealing performance is insufficient are solved.
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Description

Technical Field

[0001] This utility model relates to the field of pipe clamping, and in particular to a socket-type sealing joint for fiberglass pipe fittings. Background Technology

[0002] In modern industrial pipeline systems, fiberglass pipes are widely used in chemical, municipal, power, and water conservancy fields due to their advantages such as lightweight, high strength, corrosion resistance, and long service life. With the continuous development of pipeline engineering, higher requirements are being placed on the safety, sealing, and installation efficiency of pipe connection methods. Especially in underground installations, high-altitude installations, or complex terrain laying applications, traditional flange connections are gradually being replaced by socket connections due to their complex construction and high cost.

[0003] Currently, common FRP (fiberglass reinforced plastic) pipe fittings with socket connections mainly consist of a spigot end and a socket end, sealed by an elastic sealing ring, and assembled by manual hammering or mechanical pushing. This connection method is simple to operate, allows for rapid installation without special tools, and is widely used in small and medium-sized projects.

[0004] However, due to the lack of an effective anti-detachment structure, socket-type connections are prone to loosening or even falling off when subjected to external vibrations, water hammer impacts, or temperature changes, causing leaks or even safety accidents. Therefore, there is an urgent need for a new type of socket-type sealing joint with a simple structure and anti-detachment function to improve the safety and practicality of FRP pipe connections. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a fiberglass pipe fitting socket-type sealing joint.

[0006] This utility model provides a socket-type sealing joint for fiberglass pipe fittings, comprising:

[0007] First pipeline;

[0008] The first connecting block is fixedly connected to the surface of the first pipe;

[0009] The second connecting block is slidably connected to the surface of the first connecting block;

[0010] The second pipe is fixedly connected to the surface of the second connecting block;

[0011] The snap-fit ​​assembly comprises two sets, each set including a snap-fit ​​block, a handle, an L-shaped snap-fit ​​block, a support ring, a spring, a placement groove, an L-shaped groove, and a limiting groove. The L-shaped groove is formed on the surface of the first connecting block, the L-shaped snap-fit ​​block is fixedly connected to the surface of the second connecting block and slidably connected to the inner wall of the L-shaped groove, the limiting groove is formed on the surface of the L-shaped snap-fit ​​block, the placement groove is formed on the surface of the first connecting block, the snap-fit ​​block is slidably connected to the inner walls of the placement groove and the limiting groove, the support ring is fixedly connected to the circumferential surface of the snap-fit ​​block and slidably connected to the inner wall of the placement groove, one end of the spring is fixedly connected to the surface of the support ring and the other end of the spring is fixedly connected to the inner wall of the placement groove, and the handle is fixedly connected to one end of the snap-fit ​​block.

[0012] Preferably, the surface of the handle is fixedly connected with multiple anti-slip strips.

[0013] Preferably, a first sealing groove is formed on the surface of the first connecting block, and a first sealing ring is slidably connected to the inner wall of the first sealing groove.

[0014] Preferably, a retaining ring is fixedly connected to one end of the second pipe, and a retaining groove is provided at one end of the first pipe, with the retaining ring slidably connected to the inner wall of the groove.

[0015] Preferably, a second sealing groove is formed on the surface of the first connecting block, and a second sealing ring is slidably connected to the inner wall of the second sealing groove.

[0016] Preferably, the two L-shaped blocks are located on opposite sides of the center of the second pipe.

[0017] Compared with related technologies, the e-government announcement display device provided by this utility model has the following beneficial effects:

[0018] 1. This utility model solves the problem of easy detachment of traditional socket-type connections through the mechanical locking and symmetrical structural design of the snap-fit ​​component. Specifically, during the rotation of the L-shaped snap-fit ​​block, the arc-shaped head collides with the snap-fit ​​block, and the spring force pushes the snap-fit ​​block into the limiting groove to form a physical lock. At the same time, the L-shaped snap-fit ​​blocks are symmetrically distributed on both sides of the second pipe, so the force is even and the torsional resistance is strong, preventing loosening caused by vibration or impact. In addition, the initial fixation of the snap ring and the snap groove further enhances the connection stability, effectively preventing detachment, improving connection reliability, and adapting to complex working conditions.

[0019] 2. This utility model improves sealing performance and efficiency through a double-layer sealing structure and convenient operation design. Specifically, the first and second sealing rings are compressed and deformed in the sealing groove, dynamically compensating for installation errors and filling tiny gaps to form a double sealing line, significantly reducing the risk of leakage. The anti-slip strip on the handle surface enhances the grip, and the quick disassembly function of the locking block makes the connection and separation process more efficient and stable, achieving the purpose of optimizing the sealing effect, extending service life, and reducing the difficulty of manual operation. Attached Figure Description

[0020] Figure 1 A first-view perspective perspective view provided for this utility model;

[0021] Figure 2 Exploded view provided for this utility model;

[0022] Figure 3 Provided by this utility model Figure 2 Enlarged view of point A in the middle;

[0023] Figure 4 A partial sectional view provided for this utility model;

[0024] Figure 5 Provided by this utility model Figure 4 Enlarged view of point B in the middle;

[0025] Figure 6 A partial exploded view provided for this utility model.

[0026] The following are the labels in the diagram: 1. First pipe; 2. First connecting block; 3. Second connecting block; 4. Second pipe; 5. Locking block; 6. Handle; 7. Anti-slip strip; 8. L-shaped locking block; 9. Locking ring; 10. Support ring; 11. Spring; 12. Placement groove; 13. L-shaped groove; 14. First sealing groove; 15. First sealing ring; 16. Second sealing ring; 17. Second sealing groove; 18. Locking groove; 19. Limiting groove. Detailed Implementation

[0027] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0028] Please refer to the following: Figures 1 to 6 A socket-type sealing joint for fiberglass pipe fittings, comprising:

[0029] First Pipeline 1;

[0030] First connecting block 2, the first connecting block 2 is fixedly connected to the surface of the first pipe 1;

[0031] The second connecting block 3 is slidably connected to the surface of the first connecting block 2;

[0032] The second pipe 4 is fixedly connected to the surface of the second connecting block 3;

[0033] The snap-fit ​​assembly has two sets. Each set of snap-fit ​​assemblies includes a snap-fit ​​block 5, a handle 6, an L-shaped snap-fit ​​block 8, a support ring 10, a spring 11, a placement groove 12, an L-shaped groove 13, and a limiting groove 19. The L-shaped groove 13 is formed on the surface of the first connecting block 2. The L-shaped snap-fit ​​block 8 is fixedly connected to the surface of the second connecting block 3 and is slidably connected to the inner wall of the L-shaped groove 13. The limiting groove 19 is formed on the surface of the L-shaped snap-fit ​​block 8. The placement groove 12 is formed on the surface of the first connecting block 2. The snap-fit ​​block 5 is slidably connected to the inner walls of the placement groove 12 and the limiting groove 19. The support ring 10 is fixedly connected to the circumferential surface of the snap-fit ​​block 5 and is slidably connected to the inner wall of the placement groove 12. One end of the spring 11 is fixedly connected to the surface of the support ring 10, and the other end of the spring 11 is fixedly connected to the inner wall of the placement groove 12. The handle 6 is fixedly connected to one end of the snap-fit ​​block 5.

[0034] In the specific implementation process, when connecting the first pipe 1 and the second pipe 4, the L-shaped locking block 8 of the second connecting block 3 is aligned with the L-shaped groove 13 of the first connecting block 2 and inserted. At this time, the retaining ring 9 at one end of the second pipe 4 will be inserted into the retaining groove 18 of the first pipe 1, initially fixing and enhancing the sealing. Then, the second pipe 4 is rotated, causing the second connecting block 3 and the L-shaped locking block 8 to rotate synchronously, so that the L-shaped locking block 8 slides into the L-shaped groove 13. During the rotation, the arc surface of the head of the L-shaped locking block 8 will collide with the locking block 5. Under the elastic force of the spring 11, the locking block 5 is compressed inward along the placement groove 12. When the L-shaped locking block 8 moves to the position where the limiting groove 19 is aligned with the locking block 5, the spring 11 pushes the support ring 10 to reset, causing the locking block 5 to be locked into the limiting groove 19, thus completing the fixation. When disassembling, the locking block 5 is pulled outward by the handle 6 to release it from the limiting groove 19. Then, the second pipe 4 is rotated in the opposite direction to pull the L-shaped locking block 8 out of the L-shaped groove 13, achieving the purpose of quick connection, convenient disassembly and enhanced structural stability.

[0035] refer to Figures 1 to 6 As shown, multiple anti-slip strips 7 are fixedly connected to the surface of the handle 6.

[0036] In the specific implementation process, during the disassembly process, when the operator holds the handle 6, the anti-slip strip 7 forms a physical engagement with the finger contact surface to prevent slippage, and can still apply force stably, especially in wet or gloved environments.

[0037] refer to Figures 1 to 6 As shown, a first sealing groove 14 is provided on the surface of the first connecting block 2, and a first sealing ring 15 is slidably connected to the inner wall of the first sealing groove 14.

[0038] In the specific implementation process, when the first connecting block 2 and the second connecting block 3 are connected, the first sealing ring 15 is squeezed and deformed in the first sealing groove 14, filling the tiny gap at the pipe interface, so as to enhance the sealing performance, reduce the risk of leakage and adapt to different installation accuracy requirements.

[0039] refer to Figures 1 to 6 As shown, a retaining ring 9 is fixedly connected to one end of the second pipe 4, and a retaining groove 18 is opened at one end of the first pipe 1. The retaining ring 9 is slidably connected to the inner wall of the retaining groove 18.

[0040] In the specific implementation process, when the second pipe 4 is inserted into the first pipe 1, the retaining ring 9 slides along the inner wall of the retaining groove 18 until it is completely embedded in the bottom of the retaining groove 18, forming a physical limit to prevent axial displacement or loosening after the pipe connection. At the same time, the contact surface between the retaining ring 9 and the retaining groove 18 can further seal the interface, thereby improving the connection stability, assisting in sealing, and preventing detachment.

[0041] refer to Figures 1 to 6 As shown, a second sealing groove 17 is provided on the surface of the first connecting block 2, and a second sealing ring 16 is slidably connected to the inner wall of the second sealing groove 17.

[0042] In the specific implementation process, during the pipeline connection process, the second sealing ring 16 is compressed and deformed in the second sealing groove 17, and fits against the surface of the second pipeline 4 to form a secondary sealing layer, which makes up for the possible local sealing deficiencies of the first sealing ring 15, and achieves the purpose of double sealing and improving the overall sealing reliability.

[0043] refer to Figures 1 to 6 As shown, the two L-shaped blocks 8 are located on opposite sides of the center of the second pipe 4.

[0044] In the specific implementation process, when the second pipe 4 rotates, the L-shaped locking blocks 8 on both sides move synchronously to ensure uniform force distribution and avoid skewing or jamming caused by unilateral locking. At the same time, the symmetrical structure can enhance the torsional resistance of the locking components, making the connection more stable and achieving the purpose of optimizing force balance, preventing displacement and improving connection strength.

[0045] The working principle of the fiberglass pipe fitting socket sealing joint provided by this utility model is as follows: When the first pipe 1 is connected to the second pipe 4, the L-shaped locking block 8 of the second connecting block 3 is aligned with the L-shaped groove 13 of the first connecting block 2 and inserted. The retaining ring 9 at one end of the second pipe 4 is simultaneously inserted into the retaining groove 18 of the first pipe 1 to form a preliminary fixation. Then, the second pipe 4 is rotated, which drives the L-shaped locking block 8 to slide along the L-shaped groove 13. Its arc-shaped head collides with the locking block 5, so that the locking block 5 is compressed under the elastic force of the spring 11 and slides into the limiting groove 19 to complete the locking. In terms of sealing, the first sealing ring 15 and the second sealing ring 16 are squeezed and deformed in the first sealing groove 14 and the second sealing groove 17 respectively, filling the interface gap and compensating for installation errors. When disassembling, the locking block 5 can be released by pulling out the handle 6 and then rotating in the opposite direction to separate. This design solves the problems of easy detachment and insufficient sealing of traditional socket connections due to vibration and impact through the mechanical locking of the locking components and the dynamic compensation of the double sealing rings.

Claims

1. A socket-type sealing joint for fiberglass pipe fittings, characterized in that, include: First pipeline; The first connecting block is fixedly connected to the surface of the first pipe; The second connecting block is slidably connected to the surface of the first connecting block; The second pipe is fixedly connected to the surface of the second connecting block; The snap-fit ​​assembly comprises two sets, each set including a snap-fit ​​block, a handle, an L-shaped snap-fit ​​block, a support ring, a spring, a placement groove, an L-shaped groove, and a limiting groove. The L-shaped groove is formed on the surface of the first connecting block, the L-shaped snap-fit ​​block is fixedly connected to the surface of the second connecting block and slidably connected to the inner wall of the L-shaped groove, the limiting groove is formed on the surface of the L-shaped snap-fit ​​block, the placement groove is formed on the surface of the first connecting block, the snap-fit ​​block is slidably connected to the inner walls of the placement groove and the limiting groove, the support ring is fixedly connected to the circumferential surface of the snap-fit ​​block and slidably connected to the inner wall of the placement groove, one end of the spring is fixedly connected to the surface of the support ring and the other end of the spring is fixedly connected to the inner wall of the placement groove, and the handle is fixedly connected to one end of the snap-fit ​​block.

2. The fiberglass pipe fitting socket sealing joint according to claim 1, characterized in that, The surface of the handle is fixedly connected with multiple anti-slip strips.

3. The fiberglass pipe fitting socket sealing joint according to claim 1, characterized in that, The surface of the first connecting block is provided with a first sealing groove, and the inner wall of the first sealing groove is slidably connected with a first sealing ring.

4. The fiberglass pipe fitting socket sealing joint according to claim 1, characterized in that, One end of the second pipe is fixedly connected to a retaining ring, and one end of the first pipe is provided with a retaining groove, wherein the retaining ring is slidably connected to the inner wall of the retaining groove.

5. The fiberglass pipe fitting socket sealing joint according to claim 1, characterized in that, The surface of the first connecting block is provided with a second sealing groove, and the inner wall of the second sealing groove is slidably connected with a second sealing ring.

6. The fiberglass pipe fitting socket sealing joint according to claim 1, characterized in that, The two L-shaped blocks are located on opposite sides of the center of the second pipe.