Novel glass fiber reinforced plastic anti-static pipeline

Abstract

The utility model discloses a novel glass fiber reinforced plastic anti-static pipeline, which relates to the field of glass fiber reinforced plastic pipeline connection and comprises two glass fiber reinforced plastic pipes in a butt joint state, a fixing ring is connected to the outer wall of the butt joint position of the two glass fiber reinforced plastic pipes, and a connecting ring is further connected to the outside of each glass fiber reinforced plastic pipe. Connecting lugs protruding outwards are formed at the butt-joint end parts of the two fixing rings and the butt-joint end parts of the two connecting rings; the fixing ring and the connecting ring are connected through a fastening assembly, the fastening assembly is used for keeping the butt joint end faces of the two glass steel pipes in an effective butt joint state, and the situation that the two glass steel pipes are affected by gravity, and a gap is formed in the butt joint end faces is avoided. According to the utility model, the fastening assembly is arranged, so that the gum dipping layer can be protected, meanwhile, the separation phenomenon generated at the butt joint of the glass reinforced plastic pipe due to sinking of the glass reinforced plastic pipe is prevented, and the service life of the glass reinforced plastic pipe is further prolonged.

Description

Technical Field

[0001] The utility model relates to the field of glass fiber reinforced plastic pipeline connection, in particular to a novel glass fiber reinforced plastic antistatic pipeline. Background Art

[0002] FRP pipe is also called glass fiber wound sand-filled pipe (RPM pipe). It mainly uses glass fiber and its products as reinforcing materials, unsaturated polyester resin and epoxy resin with high molecular weight as basic materials, and inorganic non-metallic granular materials such as quartz sand and calcium carbonate as fillers as main raw materials. It has good antistatic properties.

[0003] In the prior art, the most common way to butt the ends of FRP pipes is through the rubber layer. However, due to the poor resistance of the rubber layer, when the FRP pipe sinks or is subjected to stress, the connection position is very likely to break, causing pipeline damage. Utility Model Content

[0004] The purpose of the utility model is to provide a novel glass fiber reinforced plastic antistatic pipe in order to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a novel glass fiber reinforced plastic anti-static pipe, comprising two glass fiber reinforced plastic pipes in a butt-jointed state, the outer walls of the two glass fiber reinforced plastic pipes at the butt joint position are connected with a fixing ring, and the outside of the glass fiber reinforced plastic pipes is also connected with a connecting ring, and the butt joint ends of the two fixing rings and the butt joint ends of the two connecting rings are both formed with connecting ears protruding outwards;

[0006] The fixing ring is connected to the connecting ring via a fastening assembly, and the fastening assembly is used to ensure that the butt joint end faces of the two FRP pipes are kept in an effective butt joint state and to prevent the two FRP pipes from being affected by gravity, causing gaps to appear on the butt joint end faces.

[0007] As a further solution of the utility model: the fastening assembly includes two groups of reinforcing steel bars threadedly connected to the fixing ring, the number of the reinforcing steel bars in one group is multiple and distributed at one end of the fixing ring, and the multiple reinforcing steel bars in one group are equidistantly distributed in the circumferential direction;

[0008] A circular hole is provided inside the connecting ring for inserting the reinforcing steel bar, and a No. 2 threaded head is formed on the end of the reinforcing steel bar away from the fixing ring. A locking nut is threadedly connected to the outer wall of the No. 2 threaded head, and the locking nut in a tightened state is used to tighten the connecting ring.

[0009] As a further solution of the utility model: threaded holes are provided at both ends of the fixing ring, the threaded holes are aligned with the reinforcing steel bars, and a No. 1 threaded head is integrally formed at one end of the reinforcing steel bar away from the No. 2 threaded head, and the No. 1 threaded head is threadedly connected to the threaded hole.

[0010] As a further solution of the utility model: the two fixing ring butt joint end faces and the connecting ears on the two connecting ring butt joint end faces are fixedly connected by a bolt assembly, and a through hole is provided on the connecting ear;

[0011] The bolt assembly includes a bolt portion and a nut portion. The bolt portion passes through the through hole, and the nut portion is threadedly connected to the bolt portion.

[0012] As a further solution of the utility model: the outer walls of the butt-jointed end faces of the two glass fiber reinforced plastic pipes are fixed by dipping them in a rubber layer.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. By setting the fastening components, the impregnation layer can be protected, and the separation of the FRP pipe joint caused by the sinking of the FRP pipe can be prevented, thereby further improving the service life of the FRP pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the utility model;

[0016] Figure 2 It is a schematic diagram of the structure of the fastening assembly of the utility model.

[0017] In the figure: 1. Glass fiber reinforced plastic pipe; 2. Fixing ring; 3. Connecting ring; 4. Connecting ear; 5. Reinforcing steel bar; 6. No. 1 threaded head; 7. No. 2 threaded head; 8. Locking nut; 9. Through hole; 10. Threaded hole. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] See also Figure 1-2In the embodiment of the utility model, a new type of FRP anti-static pipe includes two FRP pipes 1 in a docking state, the outer walls of the two FRP pipes 1 at the docking position are connected with a fixing ring 2, and the outside of the FRP pipe 1 is also connected with a connecting ring 3, and the docking ends of the two fixing rings 2 and the docking ends of the two connecting rings 3 are both formed with connecting ears 4 protruding outward; the fixing ring 2 and the connecting ring 3 are connected by a fastening assembly, and the fastening assembly is used to ensure that the docking end faces of the two FRP pipes 1 are kept in an effective docking state, and to prevent the two FRP pipes 1 from being affected by gravity, causing gaps to appear on the docking end faces, and the outer walls of the docking end faces of the two FRP pipes 1 are fixed by a glue-impregnated layer.

[0020] In this embodiment: when two FRP pipes 1 are butt-jointed, the butt ends of the two FRP pipes 1 are first aligned, and then a dipping layer is wrapped on the butt surface, specifically: the resin, curing agent and accelerator are fully mixed to form a mixed glue liquid, which is applied to the outer wall surface of the butt end of the FRP pipe 1. After the application is completed, a layer of glass fiber cloth is coated, and the glass fiber cloth is fixed by the previously applied mixed glue liquid, and then the surface of the glass fiber cloth is continuously dipped in glue, and the process is repeated four to five times, and then the knitted felt is coated, and the mixed glue liquid is continuously applied, and the process is repeated four to five times to form a dipping layer;

[0021] Afterwards, the two fixing rings 2 are sleeved on the outside of the impregnated layer and fixed. Then, the fixing ring 2 and the connecting ring are fixed using the fastening assembly to complete the fixation of the joint of the FRP pipe 1. This can protect the impregnated layer and effectively connect the two FRP pipes 1 to avoid the problem of separation of the joint caused by the sinking of the FRP pipe 1.

[0022] Please refer to Figure 1 and Figure 2 The fastening assembly includes two groups of reinforcing steel bars 5 threadedly connected to the fixing ring 2. The number of reinforcing steel bars 5 in one group is multiple and distributed at one end of the fixing ring 2, and the multiple reinforcing steel bars 5 in one group are equidistantly distributed in the circumferential direction; a circular hole for inserting the reinforcing steel bar 5 is opened inside the connecting ring 3, and a No. 2 threaded head 7 is formed at the end of the reinforcing steel bar 5 away from the fixing ring 2, and a locking nut 8 is threadedly connected to the outer wall of the No. 2 threaded head 7. The locking nut 8 in the tightened state is used to tighten the connecting ring 3. Threaded holes 10 are opened at both ends of the fixing ring 2, and the threaded holes 10 are aligned with the reinforcing steel bars 5. A No. 1 threaded head 6 is integrally formed at the end of the reinforcing steel bar 5 away from the No. 2 threaded head 7, and the No. 1 threaded head 6 is threadedly connected to the threaded hole 10.

[0023] In this embodiment: after the fixing ring 2 is fixed, the No. 1 thread head 6 at one end of the reinforcing steel bar 5 is threadedly connected with the threaded hole 10 until the No. 1 thread head 6 is completely connected with the threaded hole 10, and then the connecting ring 3 is sleeved on the outer wall of the FRP pipe 1 and moved along the outer wall of the FRP pipe 1. At this time, the circular hole inside the connecting ring 3 is inserted into the outer wall of the reinforcing steel bar 5 until the No. 2 thread head 7 penetrates from the circular hole, and the connecting ring 3 is moved to the preset position;

[0024] After that, the connecting ring 3 is fixed to the outer wall of the glass fiber reinforced plastic pipe 1 , and after the fixing is completed, the locking nut 8 and the No. 2 thread head 7 are tightened to fix the position of the connecting ring 3 .

[0025] Please refer to Figure 1 and Figure 2 The connecting ears 4 on the butt end faces of the two fixing rings 2 and the butt end faces of the two connecting rings 3 are fixedly connected by a bolt assembly, and a through hole 9 is opened on the connecting ear 4; the bolt assembly includes a bolt part and a nut part, the bolt part passes through the through hole 9, and the nut part is threadedly connected with the bolt part.

[0026] In this embodiment: by passing the bolt portion through the through hole 9, and then locking the nut portion with the bolt portion, during the locking process, the bolt and the nut press the fixed ring 2 and the movable ring 3 to the surface of the FRP pipe 1. At this time, the surface of the FRP pipe 1 and the inner walls of the fixed ring 2 and the connecting ring 3 are interference connected, thereby fixing the positions of the fixed ring 2 and the connecting ring 3 to prevent movement.

[0027] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A novel glass fiber reinforced plastic antistatic pipe, comprising two glass fiber reinforced plastic pipes (1) in a butt joint state, characterized in that: The outer walls of the two glass fiber reinforced plastic pipes (1) at the butt joint are connected with a fixing ring (2), and the outside of the glass fiber reinforced plastic pipe (1) is also connected with a connecting ring (3), and the butt joint ends of the two fixing rings (2) and the butt joint ends of the two connecting rings (3) are both formed with connecting ears (4) protruding outwards; The fixing ring (2) and the connecting ring (3) are connected via a fastening assembly, and the fastening assembly is used to ensure that the butt joint end faces of the two FRP pipes (1) are kept in an effective butt joint state and to prevent the two FRP pipes (1) from being affected by gravity, resulting in gaps on the butt joint end faces.

2. A novel glass fiber reinforced plastic antistatic pipe according to claim 1, characterized in that: The fastening assembly comprises two groups of reinforcing steel bars (5) threadedly connected to the fixing ring (2), wherein the number of the reinforcing steel bars (5) in one group is multiple and distributed at one end of the fixing ring (2), and the multiple reinforcing steel bars (5) in one group are equidistantly distributed in the circumferential direction; A circular hole is provided inside the connecting ring (3) for inserting the reinforcing steel bar (5), and a No. 2 threaded head (7) is formed at one end of the reinforcing steel bar (5) away from the fixing ring (2). A locking nut (8) is threadedly connected to the outer wall of the No. 2 threaded head (7), and the locking nut (8) in a tightened state is used to tighten the connecting ring (3).

3. A novel glass fiber reinforced plastic antistatic pipe according to claim 2, characterized in that: Both ends of the fixing ring (2) are provided with threaded holes (10), the threaded holes (10) are aligned with the reinforcing steel bar (5), and the end of the reinforcing steel bar (5) away from the No. 2 threaded head (7) is integrally formed with a No. 1 threaded head (6), and the No. 1 threaded head (6) is threadedly connected to the threaded hole (10).

4. A novel glass fiber reinforced plastic antistatic pipe according to claim 1, characterized in that: The butt-jointed end surfaces of the two fixing rings (2) and the connecting ears (4) on the butt-jointed end surfaces of the two connecting rings (3) are fixedly connected by a bolt assembly, and a through hole (9) is provided on the connecting ear (4); The bolt assembly comprises a bolt portion and a nut portion, the bolt portion passes through the through hole (9), and the nut portion is threadedly connected to the bolt portion.

5. A novel glass fiber reinforced plastic antistatic pipe according to claim 1, characterized in that: The outer walls of the butted end surfaces of the two glass fiber reinforced plastic pipes (1) are fixed by dipping them in a rubber layer.

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