A type of spliced ​​composite pipe

Abstract

This utility model relates to the field of pipe splicing technology and discloses a spliced ​​composite pipe, including two composite pipes. An installation ring and a connecting ring are fixedly installed at one end of each composite pipe that is close to each other. Multiple sets of connecting components are rotatably connected to the installation ring. Each connecting component includes a first connecting rod, the end of which is rotatably connected to the installation ring, and the other end of which is rotatably connected to a connecting block. In this utility model, through the cooperation of the first connecting rod, connecting block, second connecting rod, and locking frame with the through groove in the multiple sets of connecting components, during operation, only the connecting components need to be passed through the inside of the through groove, and then the locking frame is pressed down to complete the initial connection. When the locking frame engages with the fixing block, its inner wall compresses the wedge-shaped blocking block, which retracts into the installation groove. After resetting, the blocking block pops out to form a mechanical limit, preventing loosening. Multiple sets of connecting rods tighten synchronously to generate uniform axial tension, ensuring a tight fit between the pipe ends.

Description

Technical Field

[0001] This utility model relates to the field of pipe splicing technology, and in particular to a spliced ​​composite pipe. Background Technology

[0002] In the application of composite pipes, efficient and reliable pipe connections remain a key challenge. Traditional pipe splicing often relies on flanges, threads, or complex hot-melt processes, which are cumbersome and time-consuming, especially in large-scale installations where they severely impact construction efficiency.

[0003] While existing mechanical connection methods can increase speed, they often struggle to balance connection strength and sealing. They typically lack effective axial locking force, making pipelines prone to loosening and leakage under pressure or vibration. Furthermore, inadequate sealing structure design, over-reliance on operational precision and additional sealing materials, leads to failure over long-term use. Therefore, we propose a spliced ​​composite pipe system. Utility Model Content

[0004] The present invention aims to solve the technical problems existing in the prior art and provide a spliced ​​composite pipe.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a splicing composite pipe, comprising two composite pipes, with an installation ring and a connecting ring fixedly installed at one end of the two composite pipes that are close to each other. Multiple sets of connecting components are rotatably connected to the installation ring. Each connecting component includes a first connecting rod, the end of which is rotatably connected to the installation ring. A connecting block is rotatably connected to the other end of the first connecting rod, and a second connecting rod is rotatably connected to the end of the connecting block. A locking frame is rotatably connected to the end of the second connecting rod. A through groove is provided on the connecting ring to cooperate with the first and second connecting rods. A fixing block is fixedly installed on the outer wall of the installation ring, and the upper end of the fixing block can be locked and fixed to the locking frame.

[0006] Preferably, the outer wall of the connecting ring is also provided with a relief groove, and the relief groove is matched with the width of the second connecting rod.

[0007] Preferably, the upper end of the fixing block is provided with an installation groove, and both ends of the installation groove are slidably installed with blocking blocks. A return spring is fixedly connected inside the installation groove between the ends of the two blocking blocks, and the two ends of the return spring are fixedly connected to the outer walls of the ends of the two blocking blocks respectively.

[0008] Preferably, the end of the blocking block is wedge-shaped, and the length of the blocking block is not less than one-third of the width of the mounting groove.

[0009] Preferably, the ends of the two composite pipes are matched, with one end of the composite pipe being concave inward and the other end of the composite pipe being convex outward.

[0010] Preferably, a sealing ring is fixedly installed on the outer wall of the end of one of the composite pipes, and a sealing ring that matches the sealing ring is fixedly connected to the outer wall of the end of the other composite pipe.

[0011] Preferably, the end of the sealing ring extends into the sealing ring, and the sealing ring is elastically configured. Beneficial effects

[0012] This utility model provides a spliced ​​composite pipe. It has the following beneficial effects:

[0013] (1) The spliced ​​composite pipe, through the cooperation of the first connecting rod, connecting block, second connecting rod and locking frame and through groove in multiple sets of connecting components, only needs to pass the connecting components through the inside of the through groove during operation, and then press down the locking frame to complete the initial docking. When the locking frame is snapped into the fixing block, its inner wall squeezes the wedge-shaped blocking block into the installation groove. After resetting, the blocking block pops out to form a mechanical limit to prevent loosening. Multiple sets of connecting rods tighten synchronously to generate uniform axial tension, so that the pipe ends are tightly abutted.

[0014] (2) The spliced ​​composite pipe has a concave-convex interlocking structure at the end of the pipe to achieve initial alignment. The design of the elastic sealing ring extending into the inner cavity of the sealing ring is compressed and deformed under the continuous axial tensile force generated by the connecting components, which fully fills the joint gap. This tensile force acts on the sealing interface and the pipe body interlocking part at the same time, so that the deformation of the sealing ring and the contact pressure are dynamically adapted to the changes in the internal pressure of the pipeline, which significantly improves the sealing reliability. Attached Figure Description

[0015] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0016] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0017] Figure 1 This is a schematic diagram of the connection between the two composite pipes of this utility model;

[0018] Figure 2This is a schematic cross-sectional view of the connecting component of this utility model;

[0019] Figure 3 This is a schematic diagram of the connecting component structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the mounting groove structure of this utility model;

[0021] Figure 5 This is a partial structural schematic diagram of the present invention;

[0022] Figure 6 This utility model Figure 2 Enlarged structural diagram at point A in the middle.

[0023] Legend: 1. Composite pipe; 2. Mounting ring; 3. Connecting ring; 4. Fixing block; 5. First connecting rod; 6. Second connecting rod; 7. Connecting block; 8. Snap-fit ​​frame; 9. Mounting groove; 10. Sealing ring; 11. Sealing ring; 12. Blocking block; 13. Return spring; 14. Through groove; 15. Relief groove. Detailed Implementation

[0024] 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.

[0025] like Figure 1-6 As shown, a spliced ​​composite pipe 1 includes two composite pipes 1. An installation ring 2 and a connecting ring 3 are fixedly installed at one end of the two composite pipes 1 that are close to each other. Multiple sets of connecting components are rotatably connected to the installation ring 2. The connecting components include a first connecting rod 5. The end of the first connecting rod 5 is rotatably connected to the installation ring 2. The other end of the first connecting rod 5 is rotatably connected to a connecting block 7. The end of the connecting block 7 is rotatably connected to a second connecting rod 6. The end of the second connecting rod 6 is rotatably connected to a locking frame 8. A through groove 14 is provided on the connecting ring 3 to cooperate with the first connecting rod 5 and the second connecting rod 6. A fixing block 4 is fixedly installed on the outer wall of the installation ring 2. The upper end of the fixing block 4 can be locked and fixed to the locking frame 8.

[0026] Before connecting the two composite pipes 1, the locking frame 8 connected to the mounting ring 2 passes through the corresponding through groove 14 on the connecting ring 3. As the ends of the two composite pipes 1 approach each other, the locking frame 8, the second connecting rod 6, and the connecting block 7 pass through the through groove 14 in sequence. After the ends of the two composite pipes 1 are completely connected, the end of the locking frame 8 is locked and fixed to the upper end of the fixing block 4. The locking frame 8 is stably fitted on the upper end of the fixing block 4, which can generate axial tension to make the ends of the two composite pipes 1 press against each other. The fixing block 4 is fixedly connected to the outer wall of the mounting ring 2, and its lower end is fixedly connected to the outer wall of the composite pipe 1. Through the action of multiple sets of connecting components, the ends of the two composite pipes 1 can be quickly spliced.

[0027] like Figure 4 As shown, the outer wall of the connecting ring 3 is also provided with a relief groove 15, and the relief groove 15 is matched with the width of the second connecting rod 6. The relief groove 15 can limit the two sides of the second connecting rod 6 to prevent the second connecting rod 6 from sliding on the outside of the connecting ring 3.

[0028] like Figure 5 As shown, the upper end of the fixing block 4 is provided with a mounting groove 9. Both ends of the mounting groove 9 are slidably mounted with blocking blocks 12. A return spring 13 is fixedly connected between the ends of the two blocking blocks 12 inside the mounting groove 9. The two ends of the return spring 13 are fixedly connected to the outer walls of the ends of the two blocking blocks 12 respectively. When the ends of the two blocking blocks 12 are squeezed, the ends of the return spring 13 can be squeezed at the same time, causing the return spring 13 to contract, thereby causing the blocking blocks 12 to contract into the interior of the mounting groove 9.

[0029] like Figure 5 As shown, the end of the blocking block 12 is wedge-shaped, and the length of the blocking block 12 is not less than one-third of the width of the mounting groove 9; only the end part of the blocking block 12 is located outside the mounting groove 9, while the rest slides inside the mounting groove 9.

[0030] like Figure 6 As shown, the ends of the two composite pipes 1 are matched, with the end of one composite pipe 1 concave inward and the end of the other composite pipe 1 protruding outward; the matching of the ends of the two composite pipes 1 can realize the basic splicing connection between the two composite pipes 1.

[0031] like Figure 6 As shown, a sealing ring 10 is fixedly installed on the outer wall of the end of one composite pipe 1, and a sealing ring 11 that matches the sealing ring 10 is fixedly connected to the outer wall of the end of the other composite pipe 1; the end of the sealing ring 10 is concave inward and matches the protruding end of the sealing ring 11. When the ends of the two composite pipes 1 are spliced ​​together, the sealing ring 11 is combined with the sealing ring 10.

[0032] like Figure 6 As shown, the end of the sealing ring 11 extends into the sealing ring 10, and the sealing ring 11 is elastically configured; the axial tension generated by the connecting component causes the sealing ring 10 and the sealing ring 11 to press against each other, and the elastic sealing ring 11 can seal the joint at the ends of the two composite pipes 1 after deformation.

[0033] The working principle of this utility model is as follows: Before connecting two composite pipes 1, the locking frame 8 connected to the mounting ring 2 passes through the corresponding through groove 14 on the connecting ring 3. As the ends of the two composite pipes 1 approach each other, the locking frame 8, the second connecting rod 6, and the connecting block 7 pass through the through groove 14 in sequence. After the ends of the two composite pipes 1 are fully connected, the end of the locking frame 8 is locked to the upper end of the fixing block 4. The upper end of the fixing block 4 is provided with two retractable blocking blocks 12. When the locking frame 8 moves downward along the fixing block 4, it can squeeze the two blocking blocks 12 into the mounting groove 9. When the locking frame 8 moves to below the blocking blocks 12 and disengages from the end of the blocking blocks 12, the two blocking blocks 12... The spring 13 pops outward and blocks the locking frame 8, so that the locking frame 8 is stably fitted on the upper end of the fixing block 4. The fixing block 4 is fixedly connected to the outer wall of the mounting ring 2 and the lower end is fixedly connected to the outer wall of the composite pipe 1. The ends of the two composite pipes 1 can be quickly spliced ​​by the action of multiple sets of connecting components. The ends of the two composite pipes 1 are respectively provided with mutually cooperating sealing rings 10 and sealing rings 11. When the locking frame 8 is fastened to the upper end of the fixing block 4, an axial tensile force can be generated to make the ends of the two composite pipes 1 press against each other. At the same time, the sealing rings 10 and sealing rings 11 can press against each other. After the elastic sealing rings 11 deform, they can seal the joint of the ends of the two composite pipes 1.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A spliced composite pipe comprising two composite pipes (1), characterised in that: Two composite pipes (1) are fixedly installed with an installation ring (2) and a connecting ring (3) at their close ends respectively. The installation ring (2) is rotatably connected to multiple sets of connecting components. The connecting components include a first connecting rod (5), the end of which is rotatably connected to the installation ring (2). The other end of the first connecting rod (5) is rotatably connected to a connecting block (7). The end of the connecting block (7) is rotatably connected to a second connecting rod (6). The end of the second connecting rod (6) is rotatably connected to a locking frame (8). The connecting ring (3) has a through groove (14) that works with the first connecting rod (5) and the second connecting rod (6). The outer wall of the installation ring (2) is fixedly installed with a fixing block (4). The upper end of the fixing block (4) can be locked and fixed to the locking frame (8).

2. A spliced composite pipe according to claim 1, wherein: The outer wall of the connecting ring (3) is also provided with a relief groove (15), and the relief groove (15) is matched with the width of the second connecting rod (6).

3. A spliced composite pipe according to claim 2, wherein: The upper end of the fixed block (4) is provided with an installation groove (9). Both ends of the installation groove (9) are slidably installed with blocking blocks (12). The interior of the installation groove (9) is fixedly connected between the ends of the two blocking blocks (12) with a return spring (13). The two ends of the return spring (13) are fixedly connected to the outer walls of the ends of the two blocking blocks (12) respectively.

4. The spliced ​​composite pipe according to claim 3, characterized in that: The end of the blocking block (12) is wedge-shaped, and the length of the blocking block (12) is not less than one-third of the width of the mounting groove (9).

5. The spliced ​​composite pipe according to claim 4, characterized in that: The ends of the two composite pipes (1) are matched, with the end of one composite pipe (1) being concave inward and the end of the other composite pipe (1) being convex outward.

6. The spliced ​​composite pipe according to claim 5, characterized in that: One of the composite pipes (1) has a sealing ring (10) fixedly installed on the outer wall of its end, and the other composite pipe (1) has a sealing ring (11) fixedly connected to the outer wall of its end, which is matched with the sealing ring (10).

7. The spliced ​​composite pipe according to claim 6, characterized in that: The end of the sealing ring (11) extends into the sealing ring (10), and the sealing ring (11) is elastically configured.

Images