Glass fiber reinforced plastic integral sleeve joint

Abstract

The utility model discloses a glass fiber reinforced plastic integral sleeve joint which comprises a sealing piece located on the inner layer, a glass fiber reinforced plastic layer wound on the outer side of the sealing piece and a glass fiber reinforced plastic pipe installed in the sealing piece. The glass reinforced plastic sealing element is characterized by further comprising a reinforcing structure which is arranged on the sealing element and used for improving connection firmness between the glass reinforced plastic layer and the sealing element, and the reinforcing structure is a corrugated surface arranged on the outer surface of the sealing element. The corrugated surface is arranged on the outer surface of the sealing element, so that the sealing element is directly wound on the corrugated surface when a glass reinforced plastic pipe on the outer side is wound, the contact area of the sealing element and the glass reinforced plastic layer is increased, and meanwhile, the uneven corrugated surface is arranged, so that the resistance of axial movement between the sealing element and the glass reinforced plastic layer is increased; therefore, the connection firmness between the sealing element and the glass fiber reinforced plastic layer is enhanced, and the sealing element and the glass fiber reinforced plastic layer are prevented from falling off due to large resistance when a pipeline is inserted.

Description

Technical Field

[0001] The utility model relates to a glass fiber reinforced plastic sleeve joint, in particular to a glass fiber reinforced plastic integral sleeve joint. Background Art

[0002] The existing FRP sleeve joint includes a seal inside and a FRP layer outside the seal, and the existing FRP layer is directly wrapped around the seal with a smooth cylindrical outer wall. In order to ensure the sealing between the seal and the pipeline, the inner diameter of the seal is generally set smaller than the outer diameter of the pipeline, so that when the pipeline is inserted into the sleeve joint, it is squeezed between the seal and the seal to improve the sealing and connection firmness. However, the resistance during insertion is large, and once the resistance is large, the sealing ring is easily separated from the FRP layer during the insertion process. For this reason, a FRP integral sleeve joint is proposed. Utility Model Content

[0003] The utility model aims to solve the above problems and proposes a glass fiber reinforced plastic integral sleeve joint.

[0004] In order to achieve the above-mentioned purpose, the utility model provides the following technical solution: a fiberglass integral sleeve joint, comprising a seal in an inner layer, a fiberglass layer wrapped around the outside of the seal, and a fiberglass pipe installed in the seal; it is characterized in that it also includes a reinforcing structure arranged on the seal to increase the connection firmness between the fiberglass layer and the seal, and the reinforcing structure is a corrugated surface arranged on the outer surface of the seal.

[0005] Further preferably, it also includes a partition arranged in the middle part of the sealing member for limiting and blocking the glass fiber reinforced plastic pipes on both sides, and a plurality of convex rings arranged on the sealing member and located on both sides of the partition.

[0006] Further preferably, it also includes a plurality of limit grooves arranged on the sealing member, one side of the limit groove is opened into the partition but does not penetrate the partition; and a limit block adapted to the limit groove is installed on the glass fiber reinforced plastic pipe.

[0007] Further preferably, the limit block is provided with a protruding end protruding from the end of the glass fiber reinforced plastic pipe.

[0008] The beneficial effects of the utility model are as follows: by providing a corrugated surface on the outer surface of the seal, the seal is directly wound on the corrugated surface when winding the outer glass fiber reinforced plastic pipe, thereby increasing the contact area between the seal and the glass fiber reinforced plastic layer. The uneven corrugated surface is also beneficial to increasing the resistance to axial movement between the seal and the glass fiber reinforced plastic layer, thereby enhancing the connection firmness between the seal and the glass fiber reinforced plastic layer, and avoiding the seal and the glass fiber reinforced plastic layer from falling off due to the large resistance when the pipe is inserted;

[0009] Through the setting of the partition, the insertion position of the FRP pipe is limited to avoid the problem of loose connection caused by inconsistent insertion distances of the FRP pipes on both sides. At the same time, it also plays a partition protection role to prevent the ports of the FRP pipes on both sides from colliding and being damaged during insertion. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Attached Figure 1 It is a structural schematic diagram of the utility model;

[0011] Attached Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model;

[0012] Attached Figure 3 It is a partial enlarged structural schematic diagram of the utility model.

[0013] Legend: 1. Seal; 11. Limit groove; 2. FRP layer; 3. FRP pipe; 31. Limit block; 32. Protruding end; 4. Corrugated surface; 5. Partition; 6. Convex ring. DETAILED DESCRIPTION

[0014] Below we further explain the fiberglass integral sleeve joint described in the utility model in conjunction with the accompanying drawings.

[0015] It should be noted that all directional indications such as up, down, left, right, front, back... in the embodiments of the utility model are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture as shown in the accompanying drawings. If the specific posture changes, the directional indication will also change accordingly.

[0016] In the present invention, unless otherwise clearly defined and limited, the terms "connection", "fixation", etc. should be understood in a broad sense; for example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0017] See also Figure 1-3 As shown in the figure, the FRP integral sleeve joint comprises a seal 1 in the inner layer, a FRP layer 2 wrapped around the outside of the seal 1, and a FRP pipe 3 installed in the seal 1; it is characterized in that it also comprises a reinforcing structure arranged on the seal 1 for increasing the connection firmness between the FRP layer 2 and the seal 1, and the reinforcing structure is a corrugated surface 4 arranged on the outer surface of the seal 1;

[0018] By providing a corrugated surface 4 on the outer surface of the seal 1, the seal 1 is directly wound on the corrugated surface 4 when being wound around the outer FRP pipe 3, thereby increasing the contact area between the seal 1 and the FRP layer 2. While providing the corrugated surface 4 with an uneven surface is beneficial to increasing the resistance to axial movement between the seal 1 and the FRP layer 2, thereby enhancing the connection firmness between the seal 1 and the FRP layer 2 and avoiding the seal 1 and the FRP layer 2 from falling off due to the large resistance when the pipe is inserted.

[0019] In one embodiment, it also includes a partition 5 arranged in the middle part of the sealing member 1 for limiting and blocking the glass fiber reinforced plastic pipes 3 on both sides, and a plurality of convex rings 6 arranged on the sealing member 1 and on both sides of the partition 5;

[0020] The partition 5 is provided to limit the insertion position of the glass fiber reinforced plastic pipe 3, thereby avoiding the problem of loose connection caused by inconsistent insertion distances of the glass fiber reinforced plastic pipes 3 on both sides. At the same time, the partition 5 also plays a protective role, thereby preventing the ports of the glass fiber reinforced plastic pipes 3 on both sides from colliding and being damaged during insertion.

[0021] The provision of a plurality of convex rings 6 is used to increase the sealing between the FRP pipe 3 and the seal 1 while increasing the connection tightness between the FRP pipe 3 and the seal 1, thereby enhancing the connection firmness and preventing it from falling off easily.

[0022] In one embodiment, it also includes a plurality of limit grooves 11 arranged on the sealing member 1, one side of the limit groove 11 is opened into the partition 5 but does not penetrate the partition 5; the glass fiber reinforced plastic pipe 3 is installed with a limit block 31 adapted to the limit groove 11;

[0023] The limiting groove 11 and the limiting block 31 are provided to guide and limit the glass fiber reinforced plastic pipe 3 when inserted into the sealing member 1, thereby preventing deflection during the insertion process.

[0024] In one embodiment, the limit block 31 is provided with a protruding end 32 protruding from the end of the FRP pipe 3. Through the setting of the protruding end 32, the FRP pipe 3 is inserted into the seal 1 so that the protruding end 32 is inserted into the partition 5, thereby preventing the FRP pipe 3 from passing over the partition 5 due to excessive force during insertion, causing the partition 5 to fail, affecting the installation of the FRP pipe 3 and the sealing after installation.

[0025] During installation of the utility model, firstly, one of the FRP tubes 3 is inserted into the sealing member 1 along the limiting groove 11 through the limiting block 31, and the insertion is stopped after the FRP tube 3 is blocked by the partition 5, indicating that it has been installed in place. At this time, the protruding end 32 has also been inserted into the partition 5. Since the protruding end 32 is blocked in all directions at the partition 5, when the FRP tube 3 is pushed, the protruding end 32 cannot pass through the limiting groove 11 in the partition 5, thereby preventing the FRP tube 3 from passing through the partition 5; then, the other FRP tube 3 is inserted into the sealing member 1 on the other side in the same way, and the installation and connection are completed.

[0026] The protection scope of the present utility model is not limited to the above embodiments and their variations. Conventional modifications and replacements made by those skilled in the art based on the contents of this embodiment all fall within the protection scope of the present utility model.

Claims

1. A glass fiber reinforced plastic integral sleeve joint, comprising a sealing member (1) in an inner layer, a glass fiber reinforced plastic layer (2) wound around the outer side of the sealing member (1), and a glass fiber reinforced plastic pipe (3) installed in the sealing member (1); wherein the sealing member (1) is provided with a plurality of glass fiber reinforced plastic pipes, wherein the plurality of glass fiber reinforced plastic pipes are ... It also includes a reinforcing structure arranged on the sealing member (1) for increasing the connection firmness between the glass fiber reinforced plastic layer (2) and the sealing member (1), wherein the reinforcing structure is a corrugated surface (4) arranged on the outer surface of the sealing member (1).

2. The fiberglass integral sleeve joint according to claim 1, characterized in that: It also includes a partition (5) arranged in the middle part of the sealing member (1) for limiting and blocking the glass fiber reinforced plastic pipes (3) on both sides, and a plurality of convex rings (6) arranged on the sealing member (1) and located on both sides of the partition (5).

3. The fiberglass integral sleeve joint according to claim 2, characterized in that: It also includes a plurality of limit grooves (11) arranged on the sealing member (1), one side of the limit groove (11) is opened into the partition (5) but does not penetrate the partition (5); and a limit block (31) adapted to the limit groove (11) is installed on the glass fiber reinforced plastic pipe (3).

4. The glass fiber reinforced plastic integral sleeve joint according to claim 3, characterized in that: The limit block (31) is provided with a protruding end (32) protruding from the end of the glass fiber reinforced plastic pipe (3).

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