CN-224201366-U - Corrosion-resistant protective cover for natural gas pipeline interface

Abstract

The utility model relates to the field of pipeline protection, in particular to an anti-corrosion protection cover for a natural gas pipeline interface, which comprises a lower shell, an upper shell, sliding rails and the like, wherein the lower shell is rotationally connected with the upper shell, fixing holes are formed in the lower shell and the upper shell, four through holes are respectively formed in the lower shell and the upper shell, a movable rod is respectively and slidably connected at each through hole, and a plurality of sliding rails are fixedly connected with the inner wall of the through hole of the lower shell and the inner wall of the through hole of the upper shell. The protection film wrapped at the pipeline joint is isolated from the outside through the lower shell and the upper shell, the service life of the protection film is prolonged, and the protection film slides in the through hole by pushing the movable rod, so that the arc plate is driven to move to clamp and fix the two sides of the protection film at the pipeline joint.

Inventors

• WANG ZHIGANG
• LIU JINBAO
• XU LIANBAO
• LIU XIN
• LI JIAYU

Assignees

• 北京燃气房山有限责任公司

Dates

Publication Date

20260505

Application Date

20250623

Claims (7)

1. 1. The anti-corrosion protection cover for the natural gas pipeline interface comprises a lower shell (1) and an upper shell (2), wherein the lower shell (1) is rotatably connected with the upper shell (2), fixing holes (02) are formed in the lower shell (1) and the upper shell (2), the anti-corrosion protection cover is characterized by further comprising sliding rails (3), sliding blocks (4), arc plates (5), convex plates (6) and movable rods (7), four through holes (01) are formed in the lower shell (1) and the upper shell (2) respectively, one movable rod (7) is slidably connected to each through hole (01), a plurality of sliding rails (3) are fixedly connected to the inner wall of the through hole (01) of the lower shell (1) and the inner wall of the through hole (01) of the upper shell (2), one sliding block (4) is slidably connected to each sliding rail (3), one arc plate (5) used for fixing two sides of a protection film at the interface is fixedly connected to each adjacent four sliding blocks (4), the arc plates (5) correspond to the movable rods (7), and one convex plate (6) is fixedly connected to each arc plate (5).
2. 2. The anti-corrosion protection cover for the natural gas pipeline interface according to claim 1, further comprising a sealing plate (8), wherein each movable rod (7) is fixedly connected with one sealing plate (8), and the sealing plates (8) are connected in a sliding manner at the through holes (01).
3. 3. The anti-corrosion protection cover for the natural gas pipeline interface according to any one of claims 1 to 2, further comprising a fixing plate (101), elastic telescopic rods (102) and clamping plates (103), wherein each fixing plate (101) is fixedly connected to each through hole (01), a plurality of elastic telescopic rods (102) are fixedly connected to two sides of each fixing plate (101), and clamping plates (103) for clamping and fixing the movable rods (7) are fixedly connected to telescopic parts of all the elastic telescopic rods (102) on one side of each fixing plate (101) together.
4. 4. A corrosion protection cover for a natural gas pipeline interface according to claim 3, characterized in that the clamping plate (103) is provided with a protruding end (10301) and that the protruding end (10301) is provided with a chamfer.
5. 5. An anti-corrosion protection cover for a natural gas pipeline interface according to claim 4, characterized in that the sealing plate (8) has a larger width than the through hole (01).
6. 6. The anti-corrosion protection cover for the natural gas pipeline interface according to claim 1, wherein sealing strips are arranged at the joint positions of the front side and the rear side of the lower shell (1) and the upper shell (2) and the natural gas pipeline.
7. 7. An anti-corrosion protection cover for a natural gas pipeline interface according to claim 6, characterized in that the sealing strip is detachably connected to the lower housing (1) and the upper housing (2).

Description

Corrosion-resistant protective cover for natural gas pipeline interface Technical Field The utility model relates to the field of pipeline protection, in particular to an anti-corrosion protection cover for a natural gas pipeline interface. Background Natural gas is often transported through pipelines and is mainly used in the fields of chemical industry, metallurgy, medicine, environmental protection and the like. The natural gas is conveyed in a long distance by adopting a mode of splicing a plurality of sections of pipelines, so that the pipeline joint is prevented from being corroded and damaged due to long-term contact with external moisture, natural gas leakage is caused, people can wrap the protecting film at the pipeline joint to protect the protecting film from the influence of external environment and seal the pipeline joint through the protecting film, natural gas leakage is prevented, the sealing effect is enhanced, two sides of the protecting film are bound and sealed by using tools such as iron wires to prevent external moisture from invading from the side, but after the protecting film is bound and sealed, the protecting film is still exposed to the outside and is easily influenced by the external environment, the service life of the protecting film is shortened, in addition, in the process of binding and sealing by using the iron wires, the fixing is completed by means of other tools, the operation process is complicated, a large amount of manpower is consumed, in the subsequent maintenance of the pipeline joint, the maintenance is required to be rebuilt after the maintenance is completed, the operation complexity and the maintenance difficulty are increased, the protecting film at the pipeline joint is bound and fixed by the iron wires, the manual operation steps are consumed, and the subsequent maintenance is inconvenient. In summary, the application provides an anti-corrosion protection cover for a natural gas pipeline interface, which improves the technical problems. Disclosure of utility model The utility model provides an anti-corrosion protective cover for a natural gas pipeline interface, which aims to overcome the defects that a protective film at the pipeline interface is bound and fixed through iron wires, so that the manual operation steps are complicated, more manpower is required to be consumed, and subsequent maintenance is inconvenient. The anti-corrosion protection cover for the natural gas pipeline interface comprises a lower shell, an upper shell, sliding rails, sliding blocks, arc plates, convex plates and movable rods, wherein the lower shell is rotatably connected with the upper shell, the lower shell and the upper shell are provided with fixing holes, the anti-corrosion protection cover also comprises the sliding rails, the sliding blocks, the arc plates, the convex plates and the movable rods, the lower shell and the upper shell are respectively provided with four through holes, each through hole is respectively and slidably connected with one movable rod, the inner wall of the through hole of the lower shell and the inner wall of the through hole of the upper shell are respectively and fixedly connected with a plurality of sliding rails, each sliding rail is respectively and slidably connected with one sliding block, each four adjacent sliding blocks are respectively and fixedly connected with one arc plate used for fixing two sides of a protection film at the interface, the arc plates correspond to the movable rods, and each arc plate is fixedly connected with one convex plate. Optionally, the movable rod further comprises a sealing plate, wherein each movable rod is fixedly connected with one sealing plate, and the sealing plates are connected at the through holes in a sliding manner. The movable rod clamping device comprises a movable rod, and is characterized by further comprising a fixed plate, elastic telescopic rods and clamping plates, wherein each through hole is fixedly connected with one fixed plate, two sides of each fixed plate are fixedly connected with a plurality of elastic telescopic rods, and all the elastic telescopic rod telescopic parts on one side of each fixed plate are fixedly connected with one clamping plate for clamping and fixing the movable rod. Optionally, the clamping plate is provided with a protruding end, and the protruding end is provided with a chamfer. Alternatively, the seal plate width is greater than the through hole width. Optionally, sealing strips are arranged at the joint positions of the front side and the rear side of the lower shell and the upper shell and the natural gas pipeline. Optionally, the sealing strip is detachably connected with the lower shell and the upper shell. The utility model has the following advantages: the protection film wrapped at the pipeline joint is isolated from the outside through the lower shell and the upper shell, the service life of the protection film is prolonged, and the protection film