Bent pipe type steel-plastic transition anti-corrosion device
By setting up anti-corrosion components and anti-corrosion sleeves at the interfaces of transition bends and steel-plastic pipes, the problem of lack of effective anti-corrosion treatment in the prior art is solved, sealing and anti-corrosion at the interface is achieved, and service life is extended and safety hazards are reduced.
Patent Information
- Application Number
- CN202421998565.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-19
- Publication Date
- 2025-05-06
- Estimated Expiration
- 2034-08-19
AI Technical Summary
When connecting steel pipes and plastic pipes, existing transitional bends lack effective anti-corrosion treatment, resulting in easy corrosion at the connection and not easy to detect corrosion, which may cause safety hazards.
A bent pipe type steel-plastic transition corrosion protection device is designed, and the anti-corrosion components and anti-corrosion sleeves are provided at the interface of the transition pipe and steel-plastic pipe, including sealing covers, sealing rings and anti-corrosion sleeves, ensure sealing and corrosion protection at the interface.
Effectively prevent corrosion at the interface, extend service life, reduce safety hazards, and avoid gas leakage.
Smart Images
Figure CN222836504U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of bent-pipe steel-plastics, in particular to a bent-pipe steel-plastics transition anti-corrosion device. Background Art
[0002] Gas pipelines have been increasingly used in China, and transition pipes connecting steel pipes and plastic pipes are essential accessories in construction projects.
[0003] Steel-plastic pipes usually need to be connected by transition using elbows. Existing transition elbows are usually connected only by threads and do not have effective anti-corrosion treatment, which makes the connection prone to corrosion. Since gas pipelines are usually installed in relatively hidden locations, corrosion is not easy to detect. When corrosion is severe, it is easy to cause safety hazards. Therefore, we propose a elbow-type steel-plastic transition anti-corrosion device. Utility Model Content
[0004] The purpose of the utility model is to provide a curved pipe type steel-plastic transition anti-corrosion device, which provides an anti-corrosion component, specifically, after the transition curved pipe and the steel-plastic pipe are butt-jointed, the threaded ring is threadedly connected to the swivel ring, and the threaded ring and the connecting ring cooperate to squeeze the second sealing ring, so that the two sealing covers are butt-jointed and fixed, and the second sealing ring can seal the butt joint to reduce the air entering the inside of the sealing cover, thereby playing an anti-corrosion role again, effectively protecting the interface from corrosion, and improving the service life, solving the problem that the existing transition curved pipes are usually only connected by threads, do not have effective anti-corrosion treatment, and are not easy to detect after being corroded, and are prone to safety hazards when the corrosion is serious.
[0005] In order to solve the above technical problems, the utility model is realized by the following technical solutions:
[0006] The utility model discloses a curved pipe type steel-plastic transition anti-corrosion device, comprising a curved pipe, wherein steel-plastic pipes are arranged on the left and right sides of the transition curved pipe, an anti-corrosion component is arranged on the outside of the transition curved pipe, two groups of the anti-corrosion components are arranged in total, and the parts contained in the two groups of the anti-corrosion components are the same. The anti-corrosion component comprises a sealing cover, and the number of the sealing covers is two, and the two sealing covers are symmetrically arranged, and the two sealing covers are fixedly connected with a fixing ring on the sides away from each other, the sealing cover on the right side is fixedly connected with a connecting ring on the left side, and the sealing cover on the left side is fixedly connected with a threaded ring on the right side, and the anti-corrosion component is arranged, specifically, after the transition curved pipe and the steel-plastic pipe are butt-jointed, the threaded ring is threadedly connected with the swivel, and the threaded ring and the connecting ring cooperate to squeeze the sealing ring 2, so that the two sealing covers are butt-jointed and fixed, and the sealing ring 2 can seal the butt joint, reduce the air entering the inside of the sealing cover, thereby playing an anti-corrosion role again, effectively protecting the interface from corrosion, improving the service life, and avoiding the occurrence of safety hazards.
[0007] Furthermore, the steel-plastic pipe inner wall transition bend is fixedly connected with an insert ring, a plurality of arcuate ring grooves are provided on the outer side of the insert ring, a sealing ring is sleeved inside each of the arcuate ring grooves, the steel-plastic pipe is fixedly connected with the transition bend by threads, and the insert ring drives the sealing ring to enter the interior of the transition bend, which can play a good sealing role and avoid gas leakage.
[0008] Furthermore, the insert ring is plugged into the transition bend, and the inner wall of the steel-plastic pipe and the outer surface of the transition bend are both provided with threads. The inner wall of the steel-plastic pipe is threadedly connected to the outer surface of the transition bend, and the inner wall of the transition bend is fixedly connected with a limiting convex ring. The left side of the insert ring contacts the right side of the limiting convex ring, and the outer surface of the sealing ring contacts the inner wall of the transition bend. The convex ring is used to play a limiting role. At the same time, after the insert ring contacts the limiting convex ring, it can play a sealing role again.
[0009] Furthermore, the surface of the transition bend pipe and the surface of the steel-plastic pipe are covered with anti-corrosion sleeves, the inner wall of the fixed ring on the left side is fixedly connected to the outer surface of the transition bend pipe, and the inner wall of the fixed ring on the right side is fixedly connected to the outer surface of the steel-plastic pipe. By providing the anti-corrosion sleeve, specifically wrapping the anti-corrosion sleeve around the interface between the transition bend pipe and the steel-plastic pipe, a firm anti-corrosion body is formed, thereby playing an anti-corrosion role and being able to prevent gas leakage again.
[0010] Furthermore, a sealing ring 2 is fixedly connected to the left side of the connecting ring, a swivel is rotatably connected to the outer surface of the connecting ring, an annular limiting groove is provided on the inner wall of the swivel, and the inner wall of the annular limiting groove is rotatably connected to the limiting ring. Since the swivel rotates on the limiting ring, the swivel is limited to prevent the swivel from falling off, and can smoothly drive the threaded ring to move.
[0011] Furthermore, the inner ring of the limiting ring is fixedly connected to the outer ring of the connecting ring, the left side of the sealing ring 2 is in contact with the right side of the threaded ring, the inner wall of the swivel ring is provided with a thread, and the inner wall of the swivel ring is threadedly connected to the outer surface of the threaded ring. By setting the sealing ring 2, the threaded ring and the connecting ring can squeeze the sealing ring 2, thereby improving the sealing effect.
[0012] The utility model has the following beneficial effects:
[0013] 1. The utility model sets an anti-corrosion component. Specifically, after the transition elbow and the steel-plastic pipe are butt-jointed, the threaded ring is threadedly connected to the swivel. The threaded ring and the connecting ring cooperate to squeeze the second sealing ring, so that the two sealing covers are butt-jointed and fixed. The second sealing ring can seal the butt joint to reduce the air from entering the inside of the sealing cover, thereby playing an anti-corrosion role again, effectively protecting the interface from corrosion, increasing the service life, and avoiding safety hazards.
[0014] 2. The utility model sets an anti-corrosion sleeve, specifically, the steel-plastic pipe is threadedly connected and fixed with the transition elbow pipe. Once the plug-in ring drives the sealing ring to enter the interior of the transition elbow pipe, it can play a good sealing role to avoid gas leakage. When the transition elbow pipe and the steel-plastic pipe are connected, the anti-corrosion sleeve is wrapped around the interface of the transition elbow pipe and the steel-plastic pipe to form a firm anti-corrosion body, thereby playing an anti-corrosion role and preventing gas leakage again.
[0015] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to more clearly illustrate the technical solution of the embodiment of the utility model, the drawings required for describing the embodiment will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0018] Figure 2 This is a schematic diagram of the internal cross-sectional structure of the transition elbow of the utility model;
[0019] Figure 3 For this utility model Figure 2 A is a schematic diagram of the enlarged structure of the middle part;
[0020] Figure 4 For this utility model Figure 2 A schematic diagram of the enlarged structure of B;
[0021] Figure 5 It is a schematic diagram of the right side structure of the transition elbow of the utility model;
[0022] Figure 6 This is a schematic diagram of the left side structure of the utility model steel-plastic pipe.
[0023] In the accompanying drawings, the components represented by the reference numerals are listed as follows:
[0024] 1. Transition elbow; 11. Steel-plastic pipe; 111. Insert ring; 112. Sealing ring 1; 113. Limiting convex ring; 12. Anti-corrosion component; 121. Sealing cover; 122. Fixing ring; 123. Connecting ring; 231. Sealing ring 2; 232. Limiting ring; 233. Swivel; 124. Threaded ring; 13. Anti-corrosion sleeve. DETAILED DESCRIPTION
[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0026] See also Figure 1-6 As shown, the utility model is a curved pipe type steel-plastic transition anti-corrosion device, including a transition curved pipe 1, a steel-plastic pipe 11 is arranged on the left and right sides of the transition curved pipe 1, an anti-corrosion component 12 is arranged on the outside of the transition curved pipe 1, two groups of anti-corrosion components 12 are arranged, the parts contained in the two groups of anti-corrosion components 12 are the same, the anti-corrosion component 12 includes a sealing cover 121, the number of the sealing covers 121 is two, the two sealing covers 121 are symmetrically arranged, the two sealing covers 121 are fixedly connected to the sides away from each other with a fixing ring 122, and the left side of the sealing cover 121 located on the right side is fixedly connected to a connecting ring 123 The right side of the sealing cover 121 on the left side is fixedly connected with a threaded ring 124. By setting the anti-corrosion component 12, specifically, after the transition elbow 1 and the steel-plastic pipe 11 are connected, the threaded ring 124 is threadedly connected with the swivel 233. The threaded ring 124 and the connecting ring 123 cooperate to squeeze the sealing ring 231, so that the two sealing covers 121 are connected and fixed, and the sealing ring 231 can seal the connection point to reduce the air entering the sealing cover 121, thereby playing an anti-corrosion role again, effectively protecting the interface from corrosion, improving the service life, and avoiding safety hazards.
[0027] The inner wall transition elbow 1 of the steel-plastic pipe 11 is fixedly connected with an insert ring 111, and a plurality of arc-shaped ring grooves are provided on the outer side of the insert ring 111, and sealing rings 112 are sleeved inside the plurality of arc-shaped ring grooves.
[0028] The insert ring 111 is plugged into the transition elbow 1, and the inner wall of the steel-plastic pipe 11 and the outer surface of the transition elbow 1 are both provided with threads. The inner wall of the steel-plastic pipe 11 is threadedly connected with the outer surface of the transition elbow 1, and the inner wall of the transition elbow 1 is fixedly connected with a limiting convex ring 113. The left side of the insert ring 111 contacts the right side of the limiting convex ring 113, and the outer surface of the sealing ring 112 contacts the inner wall of the transition elbow 1.
[0029] The surfaces of the transition elbow 1 and the steel-plastic pipe 11 are sleeved with an anti-corrosion sleeve 13. The inner wall of the fixing ring 122 on the left is fixedly connected to the outer surface of the transition elbow 1, and the inner wall of the fixing ring 122 on the right is fixedly connected to the outer surface of the steel-plastic pipe 11. By setting the anti-corrosion sleeve 13, specifically, the steel-plastic pipe 11 and the transition elbow 1 are threadedly connected and fixed, the plug-in ring 111 drives the sealing ring 112 to enter the interior of the transition elbow 1, which can play a good sealing role and avoid gas leakage. After the transition elbow 1 and the steel-plastic pipe 11 are connected, the anti-corrosion sleeve 13 is wrapped around the interface between the transition elbow 1 and the steel-plastic pipe 11 to form a firm anti-corrosion body, thereby playing an anti-corrosion role and being able to prevent gas leakage again.
[0030] A sealing ring 231 is fixedly connected to the left side of the connecting ring 123 , a swivel 233 is rotatably connected to the outer surface of the connecting ring 123 , an annular limiting groove is provided on the inner wall of the annular limiting groove, and a limiting ring 232 is rotatably connected to the inner wall of the annular limiting groove.
[0031] The inner ring of the limiting ring 232 is fixedly connected to the outer ring of the connecting ring 123 , the left side of the sealing ring 231 contacts the right side of the threaded ring 124 , the inner wall of the rotating ring 233 is provided with threads, and the inner wall of the rotating ring 233 is threadedly connected to the outer surface of the threaded ring 124 .
[0032] A specific application of this embodiment is:
[0033] When in use, first put a number of sealing rings 112 on the insert ring 111, then connect the steel-plastic pipe 11 and the transition elbow 1, so that the steel-plastic pipe 11 and the transition elbow 1 are threadedly connected, and the two are fixed. Then the insert ring 111 drives the sealing ring 112 to enter the interior of the transition elbow 1, and at the same time, the insert ring 111 contacts the limiting convex ring 113, which can play a good sealing role to avoid gas leakage. After the transition elbow 1 and the steel-plastic pipe 11 are connected, the anti-corrosion sleeve 13 is wrapped around the interface between the transition elbow 1 and the steel-plastic pipe 11. The anti-corrosion sleeve 13 is composited with a radiation cross-linked polyolefin substrate and a special sealing hot-melt adhesive. When heated and installed, the substrate radially shrinks, and the internal composite adhesive layer melts and is tightly wrapped. At the patching point, a strong anti-corrosion body is formed, thereby playing an anti-corrosion role, and then the threaded ring 124 is plugged into the swivel 233, so that the swivel 233 is threadedly connected to the threaded ring 124. Since the swivel 233 rotates on the limiting ring 232, the swivel 233 is limited and prevented from falling off. The rotation of the swivel 233 will make the threaded ring 124 contact with the sealing ring 231, and the threaded ring 124 and the connecting ring 123 cooperate to squeeze the sealing ring 231, so that the two sealing covers 121 are docked and fixed, and the sealing ring 231 can seal the docking point to reduce the air entering the interior of the sealing cover 121, thereby playing an anti-corrosion role again, effectively protecting the interface from corrosion and improving the service life.
[0034] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.
[0035] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.
Claims
1. A curved pipe type steel-plastic transition anti-corrosion device, comprising a transition curved pipe (1), wherein the left and right sides of the transition curved pipe (1) are both provided with steel-plastic pipes (11), an anti-corrosion component (12) is provided on the outside of the transition curved pipe (1), two groups of the anti-corrosion components (12) are provided, the parts contained in the two groups of the anti-corrosion components (12) are the same, and the anti-corrosion components (12) include a sealing cover (121), characterized in that: There are two sealing covers (121), and the two sealing covers (121) are symmetrically arranged. A fixing ring (122) is fixedly connected to one side of the two sealing covers (121) away from each other, a connecting ring (123) is fixedly connected to the left side of the sealing cover (121) located on the right side, and a threaded ring (124) is fixedly connected to the right side of the sealing cover (121) located on the left side.
2. The curved pipe type steel-plastic transition anti-corrosion device according to claim 1 is characterized in that: The transition bend pipe (1) on the inner wall of the steel-plastic pipe (11) is fixedly connected with an insert ring (111), and a plurality of arc-shaped ring grooves are formed on the outer side of the insert ring (111), and a sealing ring (112) is sleeved inside each of the arc-shaped ring grooves.
3. The curved pipe type steel-plastic transition anti-corrosion device according to claim 2 is characterized in that: The insert ring (111) is plugged into the transition bend (1), the inner wall of the steel-plastic pipe (11) and the outer surface of the transition bend (1) are both provided with threads, and the inner wall of the steel-plastic pipe (11) and the outer surface of the transition bend (1) are threadedly connected.
4. The curved pipe type steel-plastic transition anti-corrosion device according to claim 3 is characterized in that: The inner wall of the transition bend pipe (1) is fixedly connected to a limiting convex ring (113); the left side of the insert ring (111) contacts the right side of the limiting convex ring (113); and the outer surface of the sealing ring (112) contacts the inner wall of the transition bend pipe (1).
5. The curved pipe type steel-plastic transition anti-corrosion device according to claim 4 is characterized in that: The surface of the transition bend pipe (1) and the surface of the steel-plastic pipe (11) are covered with an anti-corrosion sleeve (13); the inner wall of the fixing ring (122) on the left side is fixedly connected to the outer surface of the transition bend pipe (1), and the inner wall of the fixing ring (122) on the right side is fixedly connected to the outer surface of the steel-plastic pipe (11).
6. The curved pipe type steel-plastic transition anti-corrosion device according to claim 4 is characterized in that: The left side of the connecting ring (123) is fixedly connected to a sealing ring 2 (231); the outer surface of the connecting ring (123) is rotatably connected to a rotating ring (233); an annular limiting groove is formed on the inner wall of the rotating ring (233); and the inner wall of the annular limiting groove is rotatably connected to a limiting ring (232).
7. The curved pipe type steel-plastic transition anti-corrosion device according to claim 6 is characterized in that: The inner ring of the limiting ring (232) is fixedly connected to the outer ring of the connecting ring (123); the left side of the second sealing ring (231) contacts the right side of the threaded ring (124); the inner wall of the rotating ring (233) is provided with threads; the inner wall of the rotating ring (233) is threadedly connected to the outer surface of the threaded ring (124).