Buried polytetrafluoroethylene lining pipe

Abstract

The utility model discloses a buried polytetrafluoroethylene lining pipe which comprises an assembling groove and a buckling groove which are formed in the end portion of the pipe, the assembling groove is provided with an arc-shaped sealing plate, the arc-shaped sealing plate is provided with a cavity penetrating through the two corresponding sides, and a telescopic arc-shaped inserting plate is arranged in the cavity. The side, located outside the arc-shaped sealing plate, of the arc-shaped inserting plate is fixedly connected with a buckling inserting plate, and the buckling inserting plate is connected with the buckling groove in an inserted mode. The arc-shaped inserting plate can move in the cavity of the arc-shaped sealing plate, the length of the arc-shaped inserting plate can be changed, and in the layout of the buried pipes with limited space or non-straight lines, angle or position deviation can be compensated through the arc-shaped sealing plate, the arc-shaped inserting plate and the buckling inserting plate, and the installation process is simplified; when the length of the prefabricated pipe deviates from the actual requirement, the pipe can be prevented from being cut or welded again by adjusting the length, meanwhile, the pipe is prone to generating stress due to thermal expansion and cold contraction in the high-temperature or low-temperature environment, the arc-shaped inserting plates can absorb length changes, and the situation that leakage occurs due to deformation of the pipe is prevented.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of inner lining pipe material, especially relates to the buried polytetrafluoroethylene inner lining pipe material. BACKGROUND

[0002] Polytetrafluoroethylene is commonly known as plastic king, it is a kind of high molecular polymer prepared by polymerization of tetrafluoroethylene as monomer, white wax, translucent, excellent heat resistance, cold resistance, can be used for long-term at-180~260 DEG C, this material has the characteristics of acid resistance, alkali resistance, resistance to various organic solvents, almost insoluble in all solvents, the inner lining pipe made of polytetrafluoroethylene can be supported on the inner wall of the existing damaged pipeline, prevent gas or liquid leakage, prolong the service life of the pipeline.

[0003] In the process of installing polytetrafluoroethylene inner lining pipe material, the length of polytetrafluoroethylene inner lining pipe material and actual demand will exist certain deviation, simultaneously space will be limited, is not favorable to installation.Therefore, we propose a kind of buried polytetrafluoroethylene inner lining pipe material. INNOVATION CONTENT

[0004] The utility model discloses in view of the prior art problem, proposes the following technical scheme:

[0005] Buried polytetrafluoroethylene inner lining pipe material, including the assembly slot and the buckle groove being set in the pipe material end, the assembly slot is provided with arc sealing plate, the arc sealing plate is set with the chamber being penetrated to the corresponding two sides, the chamber is equipped with the arc-shaped plugboard that can be telescopic, the arc-shaped plugboard is fixedly connected with the buckle plugboard on the one side of arc-shaped sealing plate outside, the buckle plugboard is inserted with buckle groove.

[0006] As the preferred technical scheme, the outer wall of the arc-shaped sealing plate is provided with a receiving groove, the side wall of the receiving groove is provided with a threaded hole, and the threaded hole is communicated with the chamber.

[0007] As the preferred technical scheme, the threaded hole is screw-connected with a fastening bolt, and one end of the fastening bolt abuts against the arc-shaped plugboard.

[0008] As the preferred technical scheme, the two fastening bolts are connected with an assembly plate, and the two fastening bolts are respectively located on the two arc-shaped sealing plates, and the assembly plate is located in the adjacent two receiving grooves.

[0009] As the preferred technical scheme, the inner side of the arc-shaped sealing plate is provided with a sealing gasket.

[0010] The utility model has the advantages that:

[0011] 1. The arc-shaped plug-in plate can move in the cavity of the arc-shaped sealing plate, change the length, and compensate for the angle or position deviation through the arc-shaped sealing plate, the arc-shaped plug-in plate and the buckling plug-in plate, simplify the installation process in the space-limited or non-linear buried pipe material layout.

[0012] 2. When the length of the prefabricated pipe material deviates from the actual demand, the arc-shaped plug-in plate can avoid re-cutting or welding the pipe material by adjusting the length, and the pipe material is prone to stress due to thermal expansion and contraction in high or low temperature environment, and the arc-shaped plug-in plate can absorb the length change to prevent deformation of the pipe material and leakage. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 The structure of the buried polytetrafluoroethylene lining pipe material in the embodiment is shown.

[0014] Figure 2 The structure of the assembly groove and the buckling groove in the embodiment is shown.

[0015] Figure 3 The structure of the arc-shaped sealing plate in the embodiment is shown.

[0016] Figure 4 The structure of the arc-shaped plug-in plate in the embodiment is shown. Figure 3 The structure of the arc-shaped plug-in plate in the embodiment is shown.

[0017] BRIEF DESCRIPTION OF DRAWINGS

[0018] 11, assembly groove; 12, buckling groove; 20, arc-shaped sealing plate; 21, arc-shaped plug-in plate; 22, buckling plug-in plate; 23, accommodating groove; 24, threaded hole; 25, assembly plate; 26, fastening bolt; 27, sealing gasket. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical scheme and advantages of the utility model embodiment clearer, the utility model technical scheme will be described clearly and completely in combination with the embodiment.

[0020] EMBODIMENT

[0021] As Figure 1 , Figure 2 and Figure 3 The buried polytetrafluoroethylene lining pipe material comprises an assembly groove 11 and a buckling groove 12 opened at the end of the pipe material, the assembly groove 11 is provided with an arc-shaped sealing plate 20, the arc-shaped sealing plate 20 is provided with a cavity penetrating through the opposite sides, the cavity is provided with an arc-shaped plug-in plate 21 which can be extended and retracted, the arc-shaped plug-in plate 21 is fixedly connected with a buckling plug-in plate 22 on one side outside the arc-shaped sealing plate 20, and the buckling plug-in plate 22 is inserted into the buckling groove 12.

[0022] Specifically, the arc-shaped sealing plates 20 are provided with two, two buckling can be assembled around the slot 11 a circle, can be completely covered two pipe joints, while the outer wall of the arc-shaped sealing plate 20 with the outer wall of the pipe flush, facilitate its installation to the steel pipe, while the arc-shaped plug plate 21 can be moved in the cavity of the arc-shaped sealing plate 20, change the length, in the space limited or non-linear buried pipe layout, through the arc-shaped sealing plate 20, arc-shaped plug plate 21 and buckling plug plate 22 can make up the angle or position deviation, simplify the installation process, when the length of the prefabricated pipe and the actual demand exists deviation, by adjusting the length can avoid re-cutting or welding pipe, while the pipe in high temperature or low temperature environment due to thermal expansion and contraction stress, arc-shaped plug plate 21 can absorb the length change, prevent pipe deformation and leakage.

[0023] As shown in Figure 1 , Figure 2 and Figure 4 , the outer wall of the arc-shaped sealing plate 20 is provided with a receiving groove 23, the side wall of the receiving groove 23 is provided with a threaded hole 24, and the threaded hole 24 is communicated with the cavity.

[0024] It should be noted that the two buckling arc-shaped sealing plates 20 can splice the two receiving grooves 23 into a rectangle.

[0025] As shown in Figure 3 and Figure 4 , the threaded hole 24 is threadedly connected with a fastening bolt 26, and one end of the fastening bolt 26 abuts against the arc-shaped plug plate 21.

[0026] Specifically, by the threaded cooperation of the fastening bolt 26 and the threaded hole 24, when the fastening bolt 26 is rotated, it will move with it, and when the end of the fastening bolt 26 is tightly attached to the side wall of the arc-shaped plug plate 21, the arc-shaped plug plate 21 will not be able to move, and when the end of the fastening bolt 26 is not attached to the side wall of the arc-shaped plug plate 21, the arc-shaped plug plate 21 can freely move in the cavity of the arc-shaped sealing plate 20.

[0027] As shown in Figure 3 and Figure 4 , two fastening bolts 26 are connected with an assembly plate 25, and the two fastening bolts 26 are respectively located on the two arc-shaped sealing plates 20, and the assembly plate 25 is located in the two adjacent receiving grooves 23.

[0028] Specifically, the two buckling arc-shaped sealing plates 20 are assembled together by an assembly plate 25 and two fastening bolts 26, and are threadedly connected with the threaded holes 24, so that the two arc-shaped sealing plates 20 cannot be separated, and they are firmly fixed at the joint of the two pipes.

[0029] As shown in Figure 3 , the inner side of the arc-shaped sealing plate 20 is provided with a sealing gasket 27.

[0030] In particular, the gasket 27 is made of, but not limited to, silicone to prevent the leakage of liquid or gas from the joint of the two pipes.

[0031] The above embodiments are only used to illustrate the technical solutions of the present application, and are not limited thereto.

Claims

1. A buried polytetrafluoroethylene lined pipe comprising a fitting groove (11) and a fastening groove (12) formed in the end portion of the pipe, characterized in that: The assembly groove (11) is provided with an arc-shaped sealing plate (20) which is provided with a cavity penetrating through two opposite sides, and a retractable arc-shaped plug-in plate (21) is arranged in the cavity, and a buckling plug-in plate (22) is fixedly connected to one side of the arc-shaped plug-in plate (21) which is located outside the arc-shaped sealing plate (20), and the buckling plug-in plate (22) is inserted into the buckling groove (12).

2. The buried polytetrafluoroethylene lined pipe of claim 1, wherein, A containing groove (23) is arranged on the outer wall of the arc-shaped sealing plate (20), and a threaded hole (24) is arranged on the side wall of the containing groove (23), and the threaded hole (24) is communicated with the cavity.

3. The buried polytetrafluoroethylene lined pipe of claim 2, wherein, A fastening bolt (26) is threadedly connected to the threaded hole (24), and one end of the fastening bolt (26) abuts against the arc-shaped plug-in plate (21).

4. The buried polytetrafluoroethylene lined pipe of claim 3, wherein, Two fastening bolts (26) are connected to an assembly plate (25), and the two fastening bolts (26) are respectively arranged on the two arc-shaped sealing plates (20), and the assembly plate (25) is arranged in the two adjacent containing grooves (23).

5. The buried polytetrafluoroethylene lined pipe of claim 1, wherein, A sealing gasket (27) is arranged on the inner side of the arc-shaped sealing plate (20).

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