Detachable lining pipe

Abstract

The utility model discloses a detachable lining pipe which comprises a pipeline shell used for supporting, threaded rotating grooves symmetrically formed in the side end face of the pipeline shell and a lining pipe body, the lining pipe body is arranged on the inner end face of the pipeline shell, and fixing clamping rings are arranged at the two side ends of the lining pipe body. By arranging the pipeline shell and the two sets of limiting devices, when a pipeline is integrally disassembled or assembled, the threaded rotating rings are in threaded connection with the threaded rotating grooves, so that the two sets of butt flanges and the pipeline shell can be rapidly and conveniently assembled and disassembled; and meanwhile, a limiting outer plate and a limiting inner plate in the butt flange can be locked and limited with a limiting clamping ring and a fixing clamping ring, so that the lining pipe and the fixing pipe sleeve are quickly and stably limited to the outside of the pipeline shell, the convenience of assembling and disassembling the whole pipeline is effectively improved, and the practical performance of subsequent use of the pipeline is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of inner lining tube equipment, specifically a detachable inner lining tube. Background Technology

[0002] With excellent corrosion resistance and wear resistance, it is widely used in the transportation of oil, petroleum, chemical, food and other fields. At the same time, the inner lining can effectively prevent various corrosive media from eroding the pipeline body, thereby extending the service life of the pipeline.

[0003] For example, the utility model patent disclosed in announcement number CN217784451U discloses an inner liner tube that is easy to replace internally. It includes a clamping connection structure and a protective connection structure. The clamping connection structure is fixedly connected to the inner end of the protective connection structure. The clamping connection structure includes a mating groove and a first tube body. The mating groove is opened at the upper end of the first tube body. The clamping connection structure also includes a positioning pin and a mating ring tube. The mating ring tube is symmetrically fixedly connected to the side end of the first tube body, and a positioning pin is fixedly connected to the lateral position of the mating ring tube. The protective connection structure includes a second tube body, a first connecting end bracket, a first fastening component, a second fastening component, and a second connecting end bracket. The first connecting end bracket and the second connecting end bracket are symmetrically fixedly connected to the side end of the second tube body. This utility model provides an inner liner tube that is easy to replace internally, achieving the purpose of internal replacement through the clamping connection structure and the protective connection structure.

[0004] Although the aforementioned inner liner can be replaced, the replacement process is complicated due to the snap-fit ​​method. Furthermore, it is not convenient to replace the external protective pipe simultaneously, which reduces the convenience of subsequent use and maintenance of the inner liner. Therefore, there is an urgent need for a detachable inner liner to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a detachable inner liner tube to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a detachable inner liner pipe, comprising a pipe shell for support, wherein threaded grooves are symmetrically formed on the side end face of the pipe shell.

[0007] The inner liner is disposed on the inner end face of the pipe shell, and a retaining ring is provided at both ends of the inner liner.

[0008] A fixed pipe sleeve is provided on the outer end face of the pipe shell, and limit rings are provided on both ends of the fixed pipe sleeve. Protective protrusions are provided at equal intervals on the outer end face of the fixed pipe sleeve.

[0009] The limiting device is provided in two sets. The inner liner and the fixed sleeve are fixedly engaged with the side end of the pipe shell through the two sets of limiting devices.

[0010] Preferably, the limiting device includes a docking flange, a threaded swivel is fixedly provided at the center of the lower end face of the docking flange, and a limiting inner plate is provided inside the lower end face of the docking flange, and a limiting outer plate is provided outside the lower end face of the docking flange.

[0011] Preferably, the mating flange is threadedly connected to the side end face of the pipe shell by means of the threaded swivel and the threaded groove. The mating flange can be threadedly connected by the threaded swivel and the threaded groove, thereby enabling quick and convenient assembly and disassembly of the inner liner, pipe shell and fixed pipe sleeve, effectively improving the practical performance of the equipment.

[0012] Preferably, the fixed sleeve is fixedly fastened to the outside of the side end face of the pipe shell by means of the limiting outer plate and the limiting ring. The limiting ring on the side of the fixed sleeve can be inserted into the interface between the limiting outer plate and the pipe shell, thereby completing the locking and limiting of the fixed sleeve, which facilitates the quick and convenient disassembly and installation of the fixed sleeve.

[0013] Preferably, the inner lining tube is fitted and fixedly snapped into the side end face of the pipe shell by the limiting inner plate and the fixing ring. The fixing ring on the side of the inner lining tube can be inserted into the interface between the limiting inner plate and the pipe shell, thereby completing the locking and limiting of the inner lining tube, which facilitates the quick and convenient disassembly and installation of the inner lining tube.

[0014] Preferably, both the fixing sleeve and the protective protrusion are made of nylon. The nylon material of the fixing sleeve and the protective protrusion has good wear resistance, impact resistance and corrosion resistance, and can provide all-round protection for the pipe shell in various environments.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] 1. This utility model, by setting a pipe shell and two sets of limiting devices, allows for quick and easy assembly and disassembly of the two sets of mating flanges with the pipe shell during the overall disassembly or assembly of the pipe. At the same time, the limiting outer plate and limiting inner plate inside the mating flange can be locked and limited by the limiting retaining ring and the fixing retaining ring, thereby quickly and stably limiting the inner liner and the fixed pipe sleeve to the outside of the pipe shell. This effectively improves the convenience of assembling and disassembling the pipe as a whole and enhances the practical performance of the pipe in subsequent use. Attached Figure Description

[0017] Figure 1This is an exploded view of the main body of this utility model;

[0018] Figure 2 This is a schematic diagram of the main structure of the present utility model;

[0019] Figure 3 This is a schematic diagram of the limiting device of this utility model.

[0020] In the diagram: 1-Threaded swivel, 2-Limiting device, 3-Fixing retaining ring, 4-Inner liner, 5-Pipe shell, 6-Fixing sleeve, 7-Protective protrusion, 8-Limiting retaining ring, 21-Matching flange, 22-Threaded swivel, 23-Limiting outer plate, 24-Limiting inner plate. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-3 One embodiment of this utility model provides: a detachable inner liner tube, including a pipe shell 5 for support, with threaded grooves 1 symmetrically opened on the side end face of the pipe shell 5.

[0023] The inner liner 4 is set on the inner end face of the pipe shell 5, and a fixing ring 3 is provided on both sides of the inner liner 4.

[0024] Fixed pipe sleeve 6 is provided on the outer end face of pipe shell 5, and limit rings 8 are provided on both ends of fixed pipe sleeve 6. Protective protrusions 7 are provided at equal intervals on the outer end face of fixed pipe sleeve 6.

[0025] The limiting device 2 has two sets. The inner liner 4 and the fixed sleeve 6 are fixedly connected to the side end of the pipe shell 5 through the two sets of limiting devices 2.

[0026] The limiting device 2 includes a docking flange 21, a threaded swivel ring 22 is fixedly provided at the center of the lower end face of the docking flange 21, and a limiting inner plate 24 is provided inside the lower end face of the docking flange 21, and a limiting outer plate 23 is provided outside the lower end face of the docking flange 21.

[0027] The mating flange 21 is threadedly connected to the side end face of the pipe shell 5 by means of a threaded swivel 22 and a threaded groove 1. The mating flange 21 can be threadedly connected to the threaded groove 1 by means of a threaded swivel 22, thereby enabling quick and convenient assembly and disassembly of the inner liner 4, the pipe shell 5 and the fixed pipe sleeve 6, effectively improving the practical performance of the equipment.

[0028] The fixed sleeve 6 is fixedly snapped onto the outside of the side end face of the pipe shell 5 by the matching of the limiting outer plate 23 and the limiting ring 8. The limiting ring 8 on the side of the fixed sleeve 6 can be inserted into the interface between the limiting outer plate 23 and the pipe shell 5, thereby completing the locking and limiting of the fixed sleeve 6, which facilitates the quick and convenient disassembly and installation of the fixed sleeve 6 in the future.

[0029] The inner liner 4 is fixedly engaged inside the side end face of the pipe shell 5 by the matching of the limiting inner plate 24 and the fixing ring 3. The fixing ring 3 on the side of the inner liner 4 can be inserted into the interface between the limiting inner plate 24 and the pipe shell 5, thereby completing the locking and limiting of the inner liner 4, which facilitates the quick and convenient disassembly and installation of the inner liner 4.

[0030] Both the fixed sleeve 6 and the protective protrusion 7 are made of nylon. The nylon material of the fixed sleeve 6 and the protective protrusion 7 has good wear resistance, impact resistance and corrosion resistance, and can provide all-round protection for the pipe shell 5 in various environments.

[0031] Working principle: When disassembling or assembling the inner liner 4 and the fixed sleeve 6, the operator can use external tools to clamp and limit the limiting device 2 and the pipe shell 5. Then, the fixed sleeve 6 and the inner liner 4 are aligned to the outside of the pipe shell 5. After alignment, the mating flange 21 is positioned to the outside of the threaded groove 1 through the threaded swivel 22 and then rotated. At this time, the threaded swivel 22 can be threadedly connected to the threaded groove 1, thereby limiting the inner limiting plate 24 and the outer limiting plate 23 to the outside of the pipe shell 5, thus locking and assembling the inner liner 4 and the fixed sleeve 6.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A detachable inner liner pipe, comprising a pipe shell (5) for support, wherein threaded grooves (1) are symmetrically formed on the side end faces of the pipe shell (5), characterized in that: The inner lining tube (4) is disposed on the inner end face of the pipe shell (5), and a fixing ring (3) is provided on both sides of the inner lining tube (4); Fixed pipe sleeve (6) is provided on the outer end face of the pipe shell (5), and both ends of the fixed pipe sleeve (6) are provided with limit rings (8), and protective protrusions (7) are provided at equal intervals on the outer end face of the fixed pipe sleeve (6). The limiting device (2) is provided in two sets. The inner lining tube (4) and the fixed sleeve (6) are fixedly connected to the side end of the pipe shell (5) through the two sets of the limiting device (2).

2. The detachable inner liner tube according to claim 1, characterized in that: The limiting device (2) includes a docking flange (21), a threaded swivel ring (22) is fixedly provided at the center of the lower end face of the docking flange (21), and a limiting inner plate (24) is provided inside the lower end face of the docking flange (21), and a limiting outer plate (23) is provided outside the lower end face of the docking flange (21).

3. A detachable inner liner tube according to claim 2, characterized in that: The mating flange (21) is adapted to the threaded groove (1) by the threaded swivel (22) and then threadedly connected to the side end face of the pipe shell (5).

4. A detachable inner liner tube according to claim 2, characterized in that: The fixed sleeve (6) is fitted to the limiting ring (8) through the limiting outer plate (23) and thus fixedly snapped onto the outside of the side end face of the pipe shell (5).

5. A detachable inner liner tube according to claim 2, characterized in that: The inner lining tube (4) is fitted with the fixing ring (3) through the limiting inner plate (24) and thus fixedly snapped into the inside of the side end face of the pipe shell (5).

6. A detachable inner liner tube according to claim 2, characterized in that: Both the fixing sleeve (6) and the protective protrusion (7) are made of nylon.

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