Connecting tee joint suitable for flexible composite lining pipe

Abstract

The connecting tee joint suitable for the flexible composite lining pipe comprises a vertical pipe, the vertical pipe comprises a cylindrical pipe body and a tray installed at the bottom of the pipe body, a pressing disc, a cover plate and a bottom plate are assembled on the outer wall of the pipe body from top to bottom, and the bottom plate comprises a left bottom plate body and a right bottom plate body which are connected in a mortise and tenon joint mode. An annular groove is formed in the upper surface of the bottom plate; the cover plate comprises a curved surface body and a sleeve which are integrally formed, the bottom of the curved surface body is arc-shaped, a protrusion is arranged at the bottom end of the curved surface body, and the protrusion is inserted into the annular groove. According to the utility model, the left bottom plate and the right bottom plate are connected through the mortise and tenon joint, so that the left bottom plate and the right bottom plate can enter the lining pipe when the original flexible composite lining pipe is in a smaller hole, and the damage to the lining pipe is reduced; the bottom plate and the cover plate are designed to be curved surfaces, so that the lining pipe can be attached to the end faces of the bottom plate and the cover plate when the flexible composite lining pipe is applied, and the pressure bearing capacity of the flexible composite lining pipe is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline maintenance, in particular to a connecting tee suitable for flexible composite inner-lined pipes. Background Art

[0002] Trenchless repair technology using flexible composite lining for water supply pipelines is a method for repairing internal damage in water supply pipelines. It uses a flexible composite lining to line the pipe without excavation. Before repair, the water supply pipeline must be thoroughly inspected and assessed to determine the location and extent of the damage. The necessary materials and equipment, including flexible composite lining materials and repair tools, must also be prepared. Before repair, the pipeline must be thoroughly cleaned to ensure the lining adheres to the pipe wall and enhance the repair effectiveness. This cleaning process can be performed using high-pressure water or chemical cleaning agents. The appropriate flexible composite lining material is typically a corrosion-resistant, pressure-resistant, and wear-resistant composite material with excellent sealing and durability. These materials are typically supplied in rolls or sheets and need to be cut and adjusted according to the pipe diameter and repair length. The flexible composite lining material is introduced into the pipe using specialized tools or equipment, unrolled around the damaged area, and secured. Ensure that the lining material completely adheres to the pipe wall, forming a uniform, airtight protective layer. The flexible composite lining material is sealed and cured by heating, pressure, or chemical methods, forming a protective layer that is tightly bonded to the inner wall of the pipe. This process usually takes a certain amount of time, and may take several hours or even days depending on the properties of the lining material and environmental conditions.

[0003] When a pipeline lined with a flexible composite material needs to be repaired, it is often branched by adding joints. This requires cutting off the main pipe before adding the joints. Joints made of hard materials can easily damage the pipeline's lining during installation, affecting the pipeline's use. Utility Model Content

[0004] The purpose of the utility model is to provide a connecting tee suitable for flexible composite liner pipes. Through the mortise and tenon connection structure of the bottom plate, the left bottom plate and the right bottom plate can enter the liner pipe under a smaller opening, thereby reducing damage to the liner pipe.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A connecting tee suitable for a flexible composite liner pipe comprises a riser, wherein the riser comprises a cylindrical pipe body and a tray installed at the bottom of the pipe body, a pressure plate, a cover plate and a bottom plate are assembled on the outer wall of the pipe body from top to bottom, the bottom plate comprises a left bottom plate and a right bottom plate connected by mortise and tenon joints, and an annular groove is provided on the upper surface of the bottom plate; the cover plate comprises an integrally formed curved body and a sleeve, the bottom of the curved body is arc-shaped and a protrusion is provided at the bottom end, and the protrusion is inserted into the annular groove.

[0007] Preferably, both ends of the side wall of the left bottom plate are provided with dovetail grooves, and both ends of the side wall of the right bottom plate are provided with wedge blocks adapted to the dovetail grooves.

[0008] Preferably, the pressure plate is a hexagonal nut with a threaded inner wall, and the outer wall of the tube body is provided with a thread, and the pressure plate is threadedly connected to the tube body.

[0009] Preferably, the inner diameter of the sleeve is slightly larger than the outer diameter of the tube body, and the sleeve and the tube body are clearance-fitted.

[0010] The utility model uses the mortise and tenon connection of the left bottom plate and the right bottom plate to enable the left bottom plate and the right bottom plate to enter the liner pipe under a smaller opening, thereby reducing damage to the liner pipe; the bottom plate and the cover plate are designed as curved surfaces, so that the liner pipe can fit with the end faces of the bottom plate and the cover plate when the utility model is used, thereby increasing the pressure-bearing capacity of the flexible composite liner pipe.

[0011] The pressure plate in the utility model is connected to the pipe body by thread, and a wrench is used to tighten the pressure plate onto the pipe body during use, thereby ensuring the reliability of the connection part during maintenance and pressure operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural diagram of the utility model;

[0013] Figure 2 yes Figure 1 Schematic diagram of the structure of the neutral tube;

[0014] Figure 3 yes Figure 1 Schematic diagram of the structure of the medium pressure plate;

[0015] Figure 4 yes Figure 1 Schematic diagram of the structure of the middle cover;

[0016] Figure 5 It is a structural diagram of the right bottom plate;

[0017] Figure 6 It is a structural diagram of the left bottom plate;

[0018] In the figure: 1, vertical pipe, 2, pressure plate, 3, cover plate, 31, curved body, 32, sleeve, 33, protrusion, 4, bottom plate, 41, left bottom plate, 42, right bottom plate, 43, dovetail groove, 44, wedge block, 45, annular groove. DETAILED DESCRIPTION

[0019] The present invention will be further described in detail below with reference to the accompanying drawings.

[0020] like Figures 1 to 6 The shown connecting tee is suitable for a flexible composite liner pipe, comprising a riser 1, which comprises a cylindrical pipe body 11 and a tray 12 installed at the bottom of the pipe body 11. A pressure plate 2, a cover plate 3 and a bottom plate 4 are assembled on the outer wall of the pipe body 11 from top to bottom. The bottom plate 4 comprises a left bottom plate 41 and a right bottom plate 42 connected by mortise and tenon joints, and an annular groove 45 is provided on the upper surface of the bottom plate 4; the cover plate 3 comprises an integrally formed curved body 31 and a sleeve 32, the bottom of the curved body 31 is arc-shaped and a protrusion 33 is provided at the bottom end, and the protrusion 33 is inserted into the annular groove 45.

[0021] Both ends of the side wall of the left bottom plate 41 are provided with dovetail grooves 43 , and both ends of the side wall of the right bottom plate 42 are provided with wedge blocks 44 that match the dovetail grooves 43 .

[0022] The pressure plate 2 is a hexagonal nut with a threaded inner wall, and the outer wall of the tube body 11 is provided with a thread. The pressure plate 2 is threadedly connected to the tube body 11.

[0023] The inner diameter of the sleeve 32 is larger than the outer diameter of the tube body 11 , and the sleeve 32 and the tube body 11 are clearance-fitted.

[0024] The utility model uses the mortise and tenon connection of the left bottom plate and the right bottom plate to enable the left bottom plate and the right bottom plate to enter the liner pipe under a smaller opening, thereby reducing damage to the liner pipe; the bottom plate and the cover plate are designed as curved surfaces, so that the liner pipe can fit with the end faces of the bottom plate and the cover plate when the utility model is used, thereby increasing the pressure-bearing capacity of the flexible composite liner pipe.

[0025] The above are only preferred embodiments of the present invention. It should be noted that those skilled in the art can make other equivalent variations and improvements based on the technical enlightenment provided by the present invention, which should also be considered as the scope of protection of the present invention.

Claims

1. A connecting tee suitable for a flexible composite lined pipe, comprising a riser (1), characterized in that: The riser (1) comprises a cylindrical tube body (11) and a tray (12) mounted at the bottom of the tube body (11); a pressure plate (2), a cover plate (3) and a bottom plate (4) are assembled on the outer wall of the tube body (11) from top to bottom; the bottom plate (4) comprises a left bottom plate (41) and a right bottom plate (42) connected by mortise and tenon joints; an annular groove (45) is provided on the upper surface of the bottom plate (4); the cover plate (3) comprises an integrally formed curved body (31) and a sleeve (32); the bottom of the curved body (31) is arc-shaped and a protrusion (33) is provided at the bottom end; the protrusion (33) is inserted into the annular groove (45).

2. The connecting tee suitable for flexible composite lined pipe according to claim 1, characterized in that: Both ends of the side wall of the left bottom plate (41) are provided with dovetail grooves (43), and both ends of the side wall of the right bottom plate (42) are provided with wedge-shaped blocks (44) adapted to the dovetail grooves (43).

3. The connecting tee suitable for flexible composite lined pipe according to claim 1, characterized in that: The pressure plate (2) is a hexagonal nut with a threaded inner wall, and the outer wall of the tube body (11) is provided with a thread, and the pressure plate (2) and the tube body (11) are threadedly connected.

4. The connecting tee suitable for flexible composite lined pipe according to claim 1, characterized in that: The inner diameter of the sleeve (32) is greater than the outer diameter of the tube body (11), and the sleeve (32) and the tube body (11) are clearance-fitted.

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