Lining pipe with external protection structure convenient to replace

Abstract

The utility model discloses a lining pipe convenient to replace an external protection structure, which comprises a pipeline shell used for supporting, fixing flanges and fixing holes are symmetrically arranged on the side end face of the pipeline shell, the number of the fixing holes is four, and the four fixing holes are formed in the inner end faces of the fixing flanges at equal intervals in a penetrating manner. The protective sleeve shell and the limiting outer pipe are both arranged in a detachable mode, follow-up workers can conveniently, rapidly and conveniently disassemble or overhaul the protective sleeve shell and the limiting outer pipe according to requirements, the continuous protection performance of the protective sleeve shell and the limiting outer pipe on the lining pipe is effectively improved, and therefore the service life of the whole pipeline is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of inner liner pipe equipment, specifically to an inner liner pipe convenient to replace external protection structure. BACKGROUND

[0002] The inner liner pipe is a material layer arranged in the pipeline and different from the material quality or function of the pipeline, which can be regarded as a coating or lining in the pipeline, has multiple characteristics and wide application range, and can improve the overall performance of the pipeline, such as corrosion resistance, wear resistance, high temperature resistance, low temperature resistance, leakage resistance and the like, thereby prolonging the service life of the pipeline and improving the safety and reliability of the pipeline.

[0003] However, the external protection structure of the existing inner liner pipe is mostly integrally arranged, and the use environment of the inner liner pipe is relatively complex, so that when the external protection structure is damaged, the protection of the inner liner pipe in the pipeline is reduced, thereby reducing the service life of the inner liner pipe and the pipeline as a whole, and therefore an inner liner pipe convenient to replace external protection structure is urgently needed to solve the above problems. UTILITY MODEL CONTENT

[0004] The utility model aims at providing an inner liner pipe convenient to replace external protection structure to solve the problems in the background art.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: an inner liner pipe convenient to replace external protection structure, including the pipeline shell for supporting, the fixed flange is symmetrically arranged at the side end face of the pipeline shell,

[0006] The fixed hole is provided with four groups, and the four groups of fixed holes are equidistantly arranged on the inner end face of the fixed flange;

[0007] The positioning clamping shaft is provided with three groups, and the three groups of positioning clamping shafts are equidistantly arranged on the outer end face of the pipeline shell;

[0008] The protection device is fixedly connected to the outer end face of the pipeline shell through the positioning clamping shaft;

[0009] The inner liner pipe is fixedly arranged on the inner end face of the pipeline shell, and the anticorrosion plating layer is fixedly arranged on the inner end face of the inner liner pipe.

[0010] Preferably, the protection device includes two groups of detachable limiting outer tubes, two groups of fixing clamping grooves are arranged on the upper and lower parts of the two groups of limiting outer tubes, a positioning guide groove one is arranged on the outer end face of the limiting outer tube, a positioning sliding groove is equidistantly arranged on the bottom of the positioning guide groove one, a protective sleeve is fixedly connected to the outer end face of the limiting outer tube through a limiting clamp, and a positioning guide groove two is equidistantly arranged on the outer end face of the protective sleeve.

[0011] Preferably, the positioning guide groove two and the positioning sliding groove are coaxially arranged, so that the stability of subsequent butt joint limiting can be improved.

[0012] Preferably, the protective sleeve and the positioning sliding groove are fixedly connected with the positioning clamping shaft, the positioning clamping shaft can provide sufficient guiding basis for butt joint and installation of the limiting outer tube and the protective sleeve through the positioning guide groove two and the positioning sliding groove, and the stability of subsequent limiting is improved.

[0013] Preferably, the protective sleeve is fixedly connected in the limiting outer tube through the positioning guide groove one, so that the stability of subsequent limiting of the protective sleeve can be improved, and subsequent quick and convenient replacement operation is facilitated.

[0014] Preferably, the limiting outer tube is fixedly connected with the protective sleeve through the limiting clamp and the fixing clamping groove matched with the limiting clamp, the fixing clamping groove can provide sufficient limiting space for the limiting clamp, so that the stability of subsequent limiting of the limiting clamp on the protective sleeve is improved, and subsequent protection performance is improved.

[0015] Compared with the prior art, the utility model has the advantages that:

[0016] 1. The protective sleeve and the limiting outer tube are detachably arranged, subsequent workers can quickly and conveniently detach or overhaul the protective sleeve and the limiting outer tube according to requirements, the continuous protection of the protective sleeve and the limiting outer tube on the inner lining pipe is improved, and the service life of the whole pipeline is improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the split view of the main body of the utility model;

[0018] Figure 2 It is the structure schematic view of the main body of the utility model;

[0019] Figure 3 It is the split view of the protection device of the utility model;

[0020] Figure 4 It is the structure schematic view of the protection device of the utility model.

[0021] In the diagram: 1-pipe shell, 2-protective device, 3-fixing hole, 4-fixing flange, 5-inner liner, 6-anti-corrosion coating, 7-positioning clip, 21-fixing groove, 22-limiting clamp, 23-positioning guide groove one, 24-protective sleeve, 25-positioning guide groove two, 26-limiting outer tube, 27-positioning slide. Detailed Implementation

[0022] 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.

[0023] Please see Figures 1-4 One embodiment of this utility model provides: an inner liner pipe that facilitates the replacement of the external protective structure, including a pipe shell 1 for support, and a fixing flange 4 symmetrically arranged on the side end face of the pipe shell 1.

[0024] Fixing holes 3, there are four sets of fixing holes 3, and the four sets of fixing holes 3 are equally spaced and opened through the inner end face of the fixing flange 4;

[0025] Positioning pin 7, there are three sets of positioning pin 7, and the three sets of positioning pin 7 are equally spaced on the outer end face of the pipe shell 1;

[0026] Protective device 2 is fixedly attached to the outer end face of pipe shell 1 by positioning clip 7;

[0027] The inner liner 5 is fixedly installed on the inner end face of the pipe shell 1, and an anti-corrosion coating 6 is fixedly installed on the inner end face of the inner liner 5.

[0028] The protective device 2 includes two sets of detachable limiting outer tubes 26. Each of the two sets of limiting outer tubes 26 has two sets of fixing slots 21 at the top and bottom. A positioning guide groove 23 is provided on the outer end face of the limiting outer tube 26. A positioning slide groove 27 is provided at equal intervals at the bottom of the positioning guide groove 23. A protective sleeve 24 is fixedly connected to the outer end face of the limiting outer tube 26 by a limiting clamp 22. A second positioning guide groove 25 is provided at equal intervals on the outer end face of the protective sleeve 24.

[0029] The positioning guide groove 25 and the positioning slide groove 27 are coaxially arranged, which can improve the stability of subsequent docking and positioning.

[0030] Both the protective sleeve 24 and the positioning slide 27 are fixedly engaged with the positioning pin 7. The positioning pin 7 can provide sufficient guiding foundation for the docking and installation of the limiting outer tube 26 and the protective sleeve 24 through the positioning guide groove 25 and the positioning slide 27, and also improve the stability of subsequent limiting.

[0031] The protective sleeve 24 is fixedly snapped into the inside of the limiting outer tube 26 through the positioning guide groove 23, which can effectively improve the stability of the subsequent limiting of the protective sleeve 24, and also facilitate the subsequent quick and convenient replacement operation.

[0032] The limiting outer tube 26 is adapted to the fixing groove 21 through the limiting clamp 22 and then fixedly connected to the protective shell 24. The fixing groove 21 can provide sufficient limiting space for the limiting clamp 22, thereby improving the stability of the limiting clamp 22 in limiting the protective shell 24 and improving the subsequent protective performance.

[0033] Working principle: When assembling the protective sleeve 24 and the limiting outer tube 26, the operator can fix the pipe shell 1 into the external clamp module. Then, the two sets of limiting outer tubes 26 are guided by the positioning slide groove 27 and the positioning clamp shaft 7 to be aligned with the outside of the pipe shell 1. After alignment, the operator can guide the two sets of protective sleeves 24 into the positioning guide groove 23 through the positioning slide groove 27 and the positioning clamp shaft 7. After assembly, the operator can use external tools to limit the two sets of limiting clamps 22 into the fixing groove 21, thereby completing the assembly of the protective sleeve 24 and the limiting outer tube 26.

[0034] 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 liner pipe with easily replaceable external protective structure, comprising a pipe shell (1) for support, wherein a fixing flange (4) is symmetrically provided on the side end face of the pipe shell (1), characterized in that: The fixing holes (3) are provided in four sets, and the four sets of fixing holes (3) are equidistantly opened on the inner end face of the fixing flange (4); Positioning pins (7), there are three sets of positioning pins (7), and the three sets of positioning pins (7) are equidistantly arranged on the outer end face of the pipe shell (1); The protective device (2) is fixedly attached to the outer end face of the pipe shell (1) by means of the positioning clip (7); The inner lining tube (5) is fixedly disposed on the inner end face of the pipe shell (1), and an anti-corrosion coating (6) is fixedly disposed on the inner end face of the inner lining tube (5).

2. The inner liner tube for easy replacement of the external protective structure according to claim 1, characterized in that: The protective device (2) includes two sets of detachable limiting outer tubes (26). The upper and lower parts of the two sets of limiting outer tubes (26) are provided with two sets of fixing slots (21). A positioning guide groove (23) is provided on the outer end face of the limiting outer tube (26). A positioning slide groove (27) is provided at equal intervals at the bottom of the positioning guide groove (23). A protective sleeve (24) is fixedly connected to the outer end face of the limiting outer tube (26) by a limiting clamp (22). A positioning guide groove (25) is provided at equal intervals on the outer end face of the protective sleeve (24).

3. The inner liner tube for easy replacement of the external protective structure according to claim 2, characterized in that: The second positioning guide groove (25) and the positioning slide groove (27) are coaxially arranged.

4. The inner liner tube for easy replacement of the external protective structure according to claim 2, characterized in that: The protective sleeve (24) and the positioning slide (27) are both fixedly engaged with the positioning pin (7).

5. The inner liner tube for easy replacement of the external protective structure according to claim 2, characterized in that: The protective sleeve (24) is then fixedly snapped into the inside of the limiting outer tube (26) through the positioning guide groove (23).

6. The inner liner tube for easy replacement of the external protective structure according to claim 2, characterized in that: The limiting outer tube (26) is adapted to the fixing slot (21) through the limiting clamp (22) and then fixedly connected to the protective sleeve (24).

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