Glass fiber reinforced plastic pipeline convenient to connect

By combining the design of the ferrule and flange, and using the combination of the insertion rod and locking rod, the problem of complicated connection process of FRP pipes is solved, realizing rapid alignment and stable connection, and improving the convenience and stability of the connection.

CN224120865UActive Publication Date: 2026-04-14HEBEI YUNXING ENVIRONMENTAL PROTECTION EQUIPMENT CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-06-09
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

The existing connection process for FRP pipes is cumbersome, especially the complex operation of screwing in the flanges. There is an urgent need to simplify the connection method to improve convenience and stability.

Method used

The system uses a compression fitting and flange connection, and the combination of a plunger and a locking rod enables quick alignment and stable connection of pipe fittings. The combination of the plunger and locking rod simplifies the pipe connection process and ensures the stability and convenience of the connection.

Benefits of technology

It enables rapid alignment and stable connection of FRP pipes, simplifies the operation steps, and improves the convenience and stability of the connection.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a glass fiber reinforced plastic pipeline convenient to connect, which comprises two groups of pipeline parts, opposite surfaces of the two groups of pipeline parts are detachably connected with clamping sleeves, and opposite surfaces of the two groups of clamping sleeves are fixedly connected with flange plates. According to the device, after the two sets of clamping sleeves and the two sets of pipeline pieces are fixed, the first fixing sleeve is moved so that the inserting rod on the first fixing sleeve can be correspondingly inserted into one set of flange plates, then the other set of pipeline pieces is moved, and after the other set of flange plates and the inserting rod are correspondingly combined, the first fixing sleeve and the second fixing sleeve are combined in an aligned mode; the fastening rod is arranged between the two sets of side seats in a penetrating mode and fixed through the locking sleeve, so that the first fixing sleeve and the second fixing sleeve are combined, connection of the two sets of pipeline pieces is achieved, the axial meshing force between the two sets of flange plates is guaranteed through the multiple sets of inserting rods, and then the two sets of pipeline pieces can be installed in cooperation with the two sets of locking rods. And the stability and convenience of connection of the glass fiber reinforced plastic pipeline are ensured.
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Description

Technical Field

[0001] This utility model relates to the field of fiberglass pipe technology, and in particular to a fiberglass pipe that is easy to connect. Background Technology

[0002] Fiberglass pipes are composite material pipes made primarily of glass fiber reinforced plastic. They possess excellent corrosion resistance, high strength, lightweight, good insulation properties, and a long service life.

[0003] Chinese Patent Publication No. CN222732386U, published on 20250408, discloses a fiberglass pipe structure that is easy to connect, including fiberglass pipe A and fiberglass pipe B, which have the same diameter; fiberglass pipe A and fiberglass pipe B are connected by a connector; the connector includes a fixing ring and a sealing ring, the inner end of the fixing ring has a sealing chamber, and the wall of the sealing chamber has a protruding ring, and the sealing chamber and the protruding ring are provided with a sealing ring; the inner end of the fixing ring has a threaded part, and a sealing threaded ring is fitted on the threaded part.

[0004] Existing FRP pipes mostly involve installing flanges at the connection points of two sets of pipes, then passing multiple sets of fastening rods through the holes on the flanges and securing them with locking sleeves. In practice, the tightening of multiple locking sleeves is quite cumbersome. The method of fixing the two sets of flanges can be further optimized. Therefore, there is an urgent need to propose a FRP pipe that is easier to connect to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide a fiberglass pipe that is easy to connect in order to solve the above-mentioned problems.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A fiberglass pipe that is easy to connect includes two sets of pipe fittings. The opposing surfaces of the two sets of pipe fittings are detachably connected with clamps. The opposing surfaces of the two sets of clamps are fixedly connected with flanges. The outer walls of the two sets of pipe fittings are respectively fitted with a first fixing sleeve and a second fixing sleeve, and the first fixing sleeve and the second fixing sleeve are fixedly connected by a fastening rod.

[0008] Preferably, a locking rod is provided inside the ferrule, and the locking rod is screwed into the outer wall of the pipe fitting through a screw hole.

[0009] Preferably, the inner wall of the sleeve is fixedly connected with a protrusion, and the outer wall of the protrusion engages with the open end of the pipe fitting through a groove.

[0010] Preferably, the inner wall of the ferrule is interference-fitted with a sealing gasket, and the bottom of the sealing gasket abuts against the top of the locking rod.

[0011] Preferably, both the first and second fixed sleeves have side seats fixedly connected to their arc-shaped outer outer walls, the fastening rod passes between the two sets of side seats, and the fastening rod has a locking nut screwed onto its outer outer wall.

[0012] Preferably, the inner wall of the fixing sleeve is fixedly connected to multiple sets of insert rods, and the multiple sets of insert rods are arranged in a ring.

[0013] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0014] 1. In this application, after fixing two sets of clamps and two sets of pipe fittings, the first fixing sleeve is moved so that the insert rod on it is inserted into one of the flanges. Then, the other set of pipes is moved so that the other flange is engaged with the insert rod. The first fixing sleeve and the second fixing sleeve are then aligned and engaged. The fastening rod is then inserted between the two sets of side seats and fixed by the locking sleeve, thereby achieving the engagement of the first fixing sleeve and the second fixing sleeve, and thus achieving the connection of the two sets of pipe fittings. The axial interlocking force between the two sets of flanges is ensured by multiple sets of insert rods. With the help of two sets of locking rods, the installation of the two sets of pipe fittings can be achieved, ensuring the stability and convenience of the FRP pipe connection.

[0015] 2. In this application, the cooperation between the protrusion and the groove is to achieve quick alignment of the pipe fitting and the ferrule, while the connection through the locking rod ensures the convenience of disassembly and assembly of the pipe fitting and the ferrule. This ensures the stability of the connection between the flange and the pipe fitting, while also ensuring the convenience of disassembly and assembly of the flange, the first fixing sleeve, and the second fixing sleeve with the pipe fitting. Attached Figure Description

[0016] Figure 1 A schematic diagram of the overall structure according to an embodiment of the present utility model is shown;

[0017] Figure 2 A schematic diagram of a locking rod structure according to an embodiment of the present invention is shown;

[0018] Figure 3 A schematic diagram of the ferrule structure provided according to an embodiment of the present utility model is shown;

[0019] Figure 4 A schematic diagram of the insertion rod structure provided according to an embodiment of the present utility model is shown.

[0020] Legend:

[0021] 1. Pipe fitting; 2. Flange; 3. Fixing sleeve one; 4. Fixing sleeve two; 5. Side seat; 6. Fastening rod; 7. Locking nut; 8. Compression sleeve; 9. Locking rod; 10. Sealing gasket; 11. Groove; 12. Protrusion; 13. Insert rod. Detailed Implementation

[0022] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-4 This utility model provides a technical solution:

[0024] A fiberglass pipe that is easy to connect includes two sets of pipe fittings 1. Both sets of pipe fittings 1 are detachably connected to each other with a ferrule 8. Both sets of ferrules 8 are fixedly connected to each other with a flange 2. The outer walls of the two sets of pipe fittings 1 are respectively fitted with a first fixed sleeve 3 and a second fixed sleeve 4, and the first fixed sleeve 3 and the second fixed sleeve 4 are fixedly connected by a fastening rod 6.

[0025] After fixing the two sets of clamping sleeves 8 to the two sets of pipe fittings 1, move the fixing sleeve 1 3 so that the insertion rod 13 on it is inserted into one of the flanges 2. Then move the other set of pipe fittings 1 so that the other flange 2 is engaged with the insertion rod 13. The fixing sleeve 1 3 and the fixing sleeve 2 4 are then aligned and engaged. The fastening rod 6 is inserted between the two sets of side seats 5 and fixed with the locking nut 7. This achieves the engagement of the fixing sleeve 1 3 and the fixing sleeve 2 4, thereby connecting the two sets of pipe fittings 1. The axial interlocking force between the two sets of flanges 2 is ensured by the multiple insertion rods 13. With the help of the two sets of locking rods 9, the installation of the two sets of pipe fittings 1 can be achieved, ensuring the stability and convenience of the FRP pipe connection.

[0026] Specifically, such as Figure 2 and Figure 4 As shown, a locking rod 9 is inserted inside the ferrule 8. The locking rod 9 is screwed to the outer wall of the pipe fitting 1 through a screw hole. A protrusion 12 is fixedly connected to the inner wall of the ferrule 8. The outer wall of the protrusion 12 engages with the open end of the pipe fitting 1 through a groove 11. The engagement of the protrusion 12 and the groove 11 is to achieve quick alignment between the pipe fitting 1 and the ferrule 8. The connection through the locking rod 9 ensures the ease of disassembly and assembly between the pipe fitting 1 and the ferrule 8. This ensures the stability of the connection between the flange 2 and the pipe fitting 1, while also ensuring the ease of disassembly and assembly between the flange 2, the first fixing sleeve 3, and the second fixing sleeve 4 and the pipe fitting 1.

[0027] Specifically, such as Figure 2 and Figure 3 As shown, the inner surface of the ferrule 8 is press-fitted with a sealing gasket 10, and the bottom of the sealing gasket 10 abuts against the top of the locking rod 9 to achieve the blocking and isolation of the locking rod 9. The outer surface of the arc-shaped ends of the first fixed sleeve 3 and the second fixed sleeve 4 are both fixedly connected with side seats 5. The fastening rod 6 passes between the two sets of side seats 5. The outer surface of the fastening rod 6 is screwed with a locking nut 7 to ensure the ease of disassembly and assembly of the first fixed sleeve 3 and the second fixed sleeve 4. The inner surface of the first fixed sleeve 3 is fixedly connected with multiple sets of insert rods 13, and the multiple sets of insert rods 13 are distributed in a ring, which conforms to the structural features of the flange 2 and ensures the axial interlocking force between the two sets of flanges 2.

[0028] Working principle: After fixing the two sets of clamping sleeves 8 to the two sets of pipe fittings 1, move the fixing sleeve 1 3 so that the insertion rod 13 on it is inserted into one of the flanges 2. Then move the other set of pipe fittings 1 so that the other flange 2 is engaged with the insertion rod 13. The fixing sleeve 1 3 and the fixing sleeve 2 4 are then aligned and engaged. The fastening rod 6 is then inserted between the two sets of side seats 5 and fixed with the locking nut 7. This achieves the engagement of the fixing sleeve 1 3 and the fixing sleeve 2 4, thereby connecting the two sets of pipe fittings 1. This is achieved through multiple insertion rods 13. By ensuring the axial interlocking force between the two sets of flanges 2, and with the cooperation of the two sets of locking rods 9, the installation of the two sets of pipe fittings 1 can be realized, ensuring the stability and convenience of the fiberglass pipe connection. The cooperation between the protrusion 12 and the groove 11 is to realize the quick alignment of the pipe fitting 1 and the sleeve 8. The connection through the locking rod 9 ensures the convenience of disassembling and assembling the pipe fitting 1 and the sleeve 8. Thus, while ensuring the stability of the connection between the flange 2 and the pipe fitting 1, it also ensures the convenience of disassembling and assembling the flange 2, the first fixing sleeve 3, and the second fixing sleeve 4 with the pipe fitting 1.

[0029] The above description of the embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A fiberglass pipe that is easy to connect, comprising two sets of pipe fittings (1), characterized in that, Both sets of pipe fittings (1) are detachably connected to each other with a ferrule (8), and both sets of ferrules (8) are fixedly connected to each other with a flange (2). The outer walls of the two sets of pipe fittings (1) are respectively fitted with a first fixed sleeve (3) and a second fixed sleeve (4), and the first fixed sleeve (3) and the second fixed sleeve (4) are fixedly connected by a fastening rod (6).

2. The fiberglass pipe for easy connection according to claim 1, characterized in that, The sleeve (8) is provided with a locking rod (9) inside, and the locking rod (9) is screwed to the outer wall of the pipe fitting (1) through a screw hole.

3. The fiberglass pipe for easy connection according to claim 2, characterized in that, The inner wall of the sleeve (8) is fixedly connected to a protrusion (12), and the outer wall of the protrusion (12) engages with the open end of the pipe fitting (1) through a groove (11).

4. The fiberglass pipe for easy connection according to claim 3, characterized in that, The inner wall of the sleeve (8) is fitted with a sealing gasket (10), and the bottom of the sealing gasket (10) abuts against the top of the locking rod (9).

5. The fiberglass pipe for easy connection according to claim 4, characterized in that, The outer walls of the arc-shaped ends of the first fixed sleeve (3) and the second fixed sleeve (4) are both fixedly connected to side seats (5). The fastening rod (6) passes between the two sets of side seats (5). The outer wall of the fastening rod (6) is screwed with a locking nut (7).

6. The fiberglass pipe for easy connection according to claim 5, characterized in that, Multiple sets of insert rods (13) are fixedly connected to the inner wall of the fixed sleeve (3), and the multiple sets of insert rods (13) are arranged in a ring.