FRPP winding pipe butt joint structure

Abstract

The utility model discloses an FRPP winding pipe butt joint structure which comprises an annular positioning seat and two winding pipe bodies, the lower end of the annular positioning seat is fixedly connected with a U-shaped support, and two symmetrically-distributed arc-shaped openings are formed in the annular inner wall of the center position of the annular positioning seat. A plurality of limiting balls are embedded in the annular inner walls, located on the two sides of the arc-shaped opening, of the annular positioning base. The two winding pipe bodies are inserted into the annular positioning seat and abut against the limiting balls and the annular protrusions to be in stable butt joint, manual butt joint operation is not needed, time and labor are saved, the two butt-jointed winding pipe bodies are welded through the arc-shaped openings, the limiting balls are matched with the arc-shaped openings to rotate the winding pipe bodies to adjust the welding position, and welding efficiency is improved. The structure is simple and practical, the T-shaped movable block is matched with the spring to drive the pressing block to abut against and make contact with the winding pipe bodies, the two winding pipe bodies in butt joint are pressed and positioned, a large weld seam crack caused by butt joint dislocation is prevented, and the welding quality is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of FRPP winding pipes, in particular to a butt joint structure of FRPP winding pipes. Background Art

[0002] FRPP pipes are fiberglass-reinforced polypropylene pipes, which have the advantages of environmental protection, non-toxicity, and corrosion resistance. They are a new type of high-rigidity, high-corrosion-resistant, high-temperature-resistant green environmental protection pipe formed by continuous winding using more advanced modified formula technology in the world. FRPP winding pipes are often connected and fixed by hot air welding.

[0003] Currently, when welding and fixing FRPP winding pipes, it is necessary to manually butt-joint and position the FRPP winding pipes to be welded, which is time-consuming and laborious. Moreover, once the butt joint is misaligned, it is easy to cause large cracks in the weld, affecting the welding quality. Now, a butt joint structure of FRPP winding pipes is proposed to solve the above problems. Content of the Utility Model

[0004] Aiming at the deficiencies and defects in the prior art, the utility model provides a butt joint structure of FRPP winding pipes to solve the technical problems in the background art that when welding and fixing FRPP winding pipes, it is necessary to manually butt-joint and position the FRPP winding pipes to be welded, which is time-consuming and laborious, and once the butt joint is misaligned, it is easy to cause large cracks in the weld, affecting the welding quality.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A butt joint structure of FRPP winding pipes includes an annular positioning seat and two winding pipe bodies. The lower end of the annular positioning seat is fixedly connected with a U-shaped support. Two symmetrically distributed arc-shaped openings are formed on the annular inner wall at the center position of the annular positioning seat. A number of limiting balls are embedded on the annular inner wall of the annular positioning seat on both sides of the arc-shaped openings. A number of annular protrusions are provided on the annular inner walls at the left and right ends of the annular positioning seat. The two winding pipe bodies are respectively inserted into the left and right ends of the annular positioning seat and are in contact with a number of limiting balls and annular protrusions. Two arc-shaped grooves are provided on the annular inner wall of the annular positioning seat facing the U-shaped support. A pressing mechanism is vertically penetrated through the top surfaces of the two arc-shaped grooves. The pressing mechanism is in contact with the two winding pipe bodies.

[0007] Preferably, the U-shaped support is composed of a horizontal bottom plate and two vertical support plates. The two vertical support plates are respectively fixedly welded to the upper ends of the left and right sides of the horizontal bottom plate. The upper ends of the two vertical support plates are fixedly welded to the annular side wall of the annular positioning seat.

[0008] Preferably, the number of the limiting balls is equally spaced.

[0009] Preferably, a plurality of the annular protrusions are integrally formed with the annular positioning seat.

[0010] Preferably, the pressing mechanism includes T-shaped movable blocks respectively vertically penetrating through the top surfaces of the central positions of the two arc-shaped slots. The lower ends of the horizontal sections of the two T-shaped movable blocks are fixedly connected with two springs. The lower ends of the two springs are fixedly connected with the annular side wall of the annular positioning seat. The lower ends of the vertical sections of the two T-shaped movable blocks are fixedly connected with pressing blocks. The side walls of the two pressing blocks are closely attached to the inner walls of the arc-shaped slots. The lower ends of the two pressing blocks are provided with arc-shaped grooves. The annular side walls of the two winding tube bodies are respectively abutted against the two arc-shaped grooves.

[0011] Preferably, the T-shaped movable block is made of alloy, and the pressing block is made of wear-resistant rubber.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] 1. By inserting the two winding tube bodies into the annular positioning seat and abutting against a plurality of limiting balls and annular protrusions for stable docking, manual docking operation is not required, which saves time and effort.

[0014] 2. By welding the two winding tube bodies after butt joint through the arc-shaped opening, and cooperating with a plurality of limiting balls to rotate the winding tube bodies to adjust the welding position, the structure is simple and practical.

[0015] 3. By the T-shaped movable block cooperating with the spring to drive the pressing block to abut against the winding tube body, the two butt-jointed winding tube bodies are pressed and positioned, preventing large cracks in the weld due to butt joint misalignment and ensuring the welding quality. Description of the Drawings

[0016] Figure 1 is a perspective schematic diagram of a butt-joint structure of an FRPP winding tube proposed by the present utility model;

[0017] Figure 2 is a structural schematic diagram of a butt-joint structure of an FRPP winding tube proposed by the present utility model;

[0018] Figure 3 is Figure 1 a partial enlarged view of part A in

[0019] Figure 4 is a structural schematic diagram of the pressing mechanism of a butt-joint structure of an FRPP winding tube proposed by the present utility model.

[0020] In the figure: 1 annular positioning seat, 2 winding pipe body, 3 U-shaped support, 4 arc-shaped opening, 5 limit ball, 6 annular protrusion, 7 arc-shaped slot, 8 horizontal bottom plate, 9 vertical support plate, 10 T-shaped movable block, 11 spring, 12 pressing block, 13 arc-shaped groove. Specific embodiments

[0021] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments.

[0023] Refer to Figures 1-4 , a butt joint structure for FRPP winding pipes, including an annular positioning seat 1 and two winding pipe bodies 2. The lower end of the annular positioning seat 1 is fixedly connected with a U-shaped support 3. The U-shaped support 3 is composed of a horizontal bottom plate 8 and two vertical support plates 9. The two vertical support plates 9 are respectively fixedly welded to the upper ends of the left and right sides of the horizontal bottom plate 8. The upper ends of the two vertical support plates 9 are fixedly welded to the annular side wall of the annular positioning seat 1. The U-shaped support 3 composed of the two vertical support plates 9 and the horizontal bottom plate 8 can provide stable support for the annular positioning seat 1. Two symmetrically distributed arc-shaped openings 4 are provided on the annular inner wall at the central position of the annular positioning seat 1. The two arc-shaped openings 4 facilitate the external welding machine to weld the butt joint positions of the two winding pipe bodies 2. A number of limit balls 5 are embedded in the annular inner wall of the annular positioning seat 1 on both sides of the arc-shaped opening 4. The number of limit balls 5 is arranged at equal intervals. The number of limit balls 5 facilitates the rotation of the two butt-jointed winding pipe bodies 2 to adjust the welding positions of the two winding pipe bodies 2. A number of annular protrusions 6 are provided on the annular inner walls of the left and right ends of the annular positioning seat 1. The number of limit balls 5 cooperates with the number of annular protrusions 6 to limit the two winding pipe bodies 2 inserted into the two ends of the annular positioning seat 1, preventing the two winding pipe bodies 2 from being misaligned during the welding process and affecting the welding quality. The number of annular protrusions 6 is integrally formed with the annular positioning seat 1. The two winding pipe bodies 2 are respectively inserted into the left and right ends of the annular positioning seat 1 and are in contact with the number of limit balls 5 and annular protrusions 6. Two arc-shaped slots 7 are provided on the annular inner wall of the annular positioning seat 1 facing the U-shaped support 3.

[0024] On the top surfaces of the two arc-shaped slots 7, a pressing mechanism is vertically penetrated. The pressing mechanism is in contact with the two winding tube bodies 2. The pressing mechanism includes T-shaped movable blocks 10 respectively vertically penetrating the top surfaces at the central positions of the two arc-shaped slots 7. At the lower ends of the horizontal sections of the two T-shaped movable blocks 10, two springs 11 are fixedly connected. The lower ends of the two springs 11 are fixedly connected to the annular side wall of the annular positioning seat 1. At the lower ends of the vertical sections of the two T-shaped movable blocks 10, pressing blocks 12 are fixedly connected. The side walls of the two pressing blocks 12 are closely attached to the inner walls of the arc-shaped slots 7. At the lower ends of the two pressing blocks 12, arc-shaped grooves 13 are provided. The annular side walls of the two winding tube bodies 2 are respectively in contact with the two arc-shaped grooves 13. The T-shaped movable blocks 10 are made of alloy. By pulling the two T-shaped movable blocks 10, the two pressing blocks 12 are driven to contract into the arc-shaped slots 7 and the springs 11 are stretched until the two winding tube bodies 2 can be respectively inserted along the two side ports of the annular positioning seat 1. On the one hand, the annular side walls of the winding tube bodies 2 are in contact with a number of limiting balls 5 and annular protrusions 6 and are stably butted, eliminating the need for manual butting operation, saving time and effort. By releasing the two T-shaped movable blocks 10, the stretched springs 11 elastically reset, driving the arc-shaped grooves 13 on the two pressing blocks 12 to be in contact with the annular side walls of the two winding tube bodies 2, so that the two butted winding tube bodies 2 are pressed and positioned, preventing large weld cracks caused by butt misalignment and ensuring the welding quality. The pressing blocks 12 are made of wear-resistant rubber. The wear-resistant rubber pressing blocks 12 are used to press and position the winding tube bodies 2 and provide buffer protection for the winding tube bodies 2.

[0025] When the utility model is in use, by pulling the two T-shaped movable blocks 10, the two pressing blocks 12 are driven to contract into the arc-shaped slots 7 and the springs 11 are stretched until the two winding tube bodies 2 can be respectively inserted along the two side ports of the annular positioning seat 1. On the one hand, the annular side walls of the winding tube bodies 2 are in contact with a number of limiting balls 5 and annular protrusions 6 and are stably butted, eliminating the need for manual butting operation, saving time and effort. By releasing the two T-shaped movable blocks 10, the stretched springs 11 elastically reset, driving the arc-shaped grooves 13 on the two pressing blocks 12 to be in contact with the annular side walls of the two winding tube bodies 2, so that the two butted winding tube bodies 2 are pressed and positioned, preventing large weld cracks caused by butt misalignment and ensuring the welding quality. An external welding machine is started to weld the two butted winding tube bodies 2 in cooperation with the two arc-shaped openings 4 on the annular positioning seat 1. When the welding position needs to be adjusted, only need to pull the two T-shaped movable blocks 10 again to drive the pressing blocks 12 to separate from the two winding tube bodies 2, and rotate the winding tube bodies 2 in cooperation with a number of limiting balls 5 to adjust the welding position. The structure is simple and practical.

[0026] The above are only the preferred specific embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution and the inventive concept of the present utility model, making equivalent substitutions or changes, shall be covered by the protection scope of the present utility model.

Claims

1. A FRPP winding pipe docking structure, comprising an annular positioning seat (1) and two winding pipe bodies (2), characterized in that: The lower end of the annular positioning seat (1) is fixedly connected to a U-shaped support (3); two symmetrically distributed arc openings (4) are provided on the annular inner wall at the center of the annular positioning seat (1); a plurality of limiting balls (5) are embedded in the annular inner walls of the annular positioning seat (1) on both sides of the arc opening (4); a plurality of annular protrusions (6) are provided on the annular inner walls at the left and right ends of the annular positioning seat (1); two winding tube bodies (2) are respectively inserted at the left and right ends of the annular positioning seat (1) and are in contact with the plurality of limiting balls (5) and the annular protrusions (6); two arc grooves (7) are provided on the annular inner wall of the annular positioning seat (1) facing the U-shaped support (3); a clamping mechanism is vertically penetrated on the top surfaces of the two arc grooves (7); and the clamping mechanism is in contact with the two winding tube bodies (2).

2. The FRPP winding pipe docking structure according to claim 1, characterized in that: The U-shaped support (3) is composed of a horizontal bottom plate (8) and two vertical support plates (9), wherein the two vertical support plates (9) are respectively fixedly welded to the upper ends of the horizontal bottom plate (8) on the left and right sides, and the upper ends of the two vertical support plates (9) are fixedly welded to the annular side wall of the annular positioning seat (1).

3. The FRPP winding pipe docking structure according to claim 1, characterized in that: The plurality of limiting balls (5) are arranged at equal intervals.

4. The FRPP winding pipe docking structure according to claim 1, characterized in that: The plurality of annular protrusions (6) are integrally formed with the annular positioning seat (1).

5. The FRPP winding pipe docking structure according to claim 1, characterized in that: The clamping mechanism comprises T-shaped movable blocks (10) respectively vertically penetrating through the top surfaces of the center positions of the two arc-shaped slots (7); the lower ends of the horizontal sections of the two T-shaped movable blocks (10) are fixedly connected to two springs (11); the lower ends of the two springs (11) are fixedly connected to the annular side walls of the annular positioning seat (1); the lower ends of the vertical sections of the two T-shaped movable blocks (10) are fixedly connected to clamping blocks (12); the side walls of the two clamping blocks (12) are arranged in close contact with the inner walls of the arc-shaped slots (7); the lower ends of the two clamping blocks (12) are provided with arc-shaped grooves (13); the annular side walls of the two winding tube bodies (2) are respectively in contact with the two arc-shaped grooves (13).

6. The FRPP winding pipe docking structure according to claim 5, characterized in that: The T-shaped movable block (10) is made of alloy, and the pressing block (12) is made of wear-resistant rubber.

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