Corrosion-resistant protective cap for steel pipe

Abstract

The corrosion-resistant protective cap comprises a sealing plate, the lower side of the sealing plate is fixedly connected with an insertion pipe, the outer wall of the insertion pipe is evenly and fixedly connected with a plurality of anti-skid rings, a threaded hole is formed in the sealing plate and located in the center of the sealing plate, a threaded rod is connected in the threaded hole in a threaded and sleeved mode, and the anti-skid rings are evenly and fixedly connected to the outer wall of the insertion pipe. The two ends of the threaded rod extend out of the threaded holes, the end, located in the insertion pipe, of the threaded rod is fixedly connected with an extrusion block, the side, close to the insertion pipe, of the sealing plate is fixedly connected with a fixing cylinder, two sliding holes are symmetrically formed in the vertical side wall of the fixing cylinder, and sliding rods are movably connected into the two sliding holes in a sleeved mode; the end, close to the insertion pipe, of the sliding rod is fixedly connected with an extrusion plate. The connection stability of the protective cap and the steel pipe is effectively improved, the protective cap can be prevented from falling off from the steel pipe, and the installation stability of the protective cap is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of steel pipe protective caps, and specifically relates to a corrosion-resistant protective cap for steel pipes. Background Art

[0002] Special steel pipes are a type of steel pipe with relatively high value. The interior of special steel pipes is prone to corrosion. To avoid the above problems, protective caps need to be installed at both ends of the special steel pipes to protect the inner walls of the steel pipes. When the existing corrosion-resistant protective caps for steel pipes are in use, the protective caps are clamped in the steel pipes through the elastic deformation ability of the protective caps themselves. The installation stability of this protective cap installation method is relatively poor, and the protective cap is prone to falling off the steel pipe. Content of the Utility Model

[0003] The purpose of the utility model is to provide a corrosion-resistant protective cap for steel pipes to solve the problems raised in the above background art.

[0004] To achieve the above purpose, the utility model provides the following technical solutions:

[0005] The utility model provides a corrosion-resistant protective cap for steel pipes, including a sealing plate. A plug-in pipe is fixedly connected to the lower side of the sealing plate. A plurality of anti-slip rings are uniformly fixedly connected to the outer wall of the plug-in pipe. A threaded hole is opened in the sealing plate, and the threaded hole is located at the center of the sealing plate. A threaded rod is threadedly sleeved in the threaded hole, and both ends of the threaded rod extend out of the threaded hole. One end of the threaded rod located inside the plug-in pipe is fixedly connected with a pressing block. A fixed cylinder is fixedly connected to the side of the sealing plate close to the plug-in pipe. Two sliding holes are symmetrically opened on the vertical side wall of the fixed cylinder. A sliding rod is movably sleeved in each of the two sliding holes. One end of the sliding rod close to the plug-in pipe is fixedly connected with a pressing plate.

[0006] Furthermore, two fixing blocks are symmetrically fixedly connected to the upper side of the sealing plate. A shaft hole is opened in each of the two fixing blocks. A rotating shaft is rotatably connected in each of the two shaft holes. The same pull rod is fixedly connected between the two rotating shafts.

[0007] Furthermore, a sealing ring is fixedly connected to the side wall of the lower side of the sealing plate, and the sealing ring is fixedly sleeved outside the plug-in pipe.

[0008] Furthermore, a screwing plate is fixedly connected to the upper end of the threaded rod, and a plurality of anti-slip grooves are uniformly opened on the screwing plate.

[0009] Furthermore, the specific shape of the pressing plate is an arc structure matching the inner wall of the plug-in pipe.

[0010] Furthermore, the specific shapes of the sliding holes and the sliding rods are both rectangular structures.

[0011] Further, a conical tube is fixedly connected to one end of the intubation tube away from the sealing plate.

[0012] Further, the specific shape of the extrusion block is conical, and the diameter of the upper end of the extrusion block is larger than that of the lower end.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] With the sealing plate, intubation tube, anti-slip ring, threaded hole, threaded rod, extrusion block, fixed cylinder, sliding hole, sliding rod and extrusion plate provided in the present utility model, during use, the intubation tube is inserted into the steel pipe. The multiple anti-slip rings provided are closely attached to the inner wall of the steel pipe, so that the intubation tube can be clamped on the inner wall of the steel pipe. Rotate the threaded rod. Through the threaded fit between the threaded rod and the threaded hole, the threaded rod moves downward. The threaded rod drives the extrusion block to move downward. The extrusion block extrudes the two sliding rods, so that the two sliding rods can move away from each other. The sliding rod drives the extrusion plate to move, and the extrusion plate extrudes the intubation tube, which can apply pressure to the intubation tube, so that the anti-slip ring on the intubation tube is more closely attached to the inner wall of the steel pipe, effectively increasing the frictional resistance between the protective cap and the steel pipe, effectively improving the stability of the connection between the protective cap and the steel pipe, avoiding the protective cap from falling off the steel pipe, and improving the stability of the installation of the protective cap. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0016] Figure 2 is a schematic diagram of the structure of the present utility model in another direction;

[0017] Figure 3 is Figure 1 a schematic diagram of the connection structure between the sealing plate and the extrusion plate in

[0018] Figure 4 is Figure 1 a schematic diagram of the connection structure between the extrusion plate and the fixed cylinder in

[0019] Figure 5 is Figure 1 a schematic diagram of the connection structure between the sealing plate and the pull rod in

[0020] In the figure: 1. Sealing plate; 2. Intubation tube; 3. Anti-slip ring; 4. Threaded hole; 5. Threaded rod; 6. Extrusion block; 7. Fixed cylinder; 8. Sliding hole; 9. Sliding rod; 10. Extrusion plate; 11. Fixed block; 12. Shaft hole; 13. Rotating shaft; 14. Pull rod; 15. Sealing ring; 16. Wrenching plate; 17. Anti-slip groove; 18. Conical tube. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0022] Please refer to Figures 1-5 , the present utility model provides a corrosion-resistant protection cap for steel pipes, including a sealing plate 1. A plug tube 2 is fixedly connected to the lower side of the sealing plate 1. A plurality of anti-slip rings 3 are evenly and fixedly connected to the outer wall of the plug tube 2. A threaded hole 4 is opened in the sealing plate 1, and the threaded hole 4 is located at the center of the sealing plate 1. A threaded rod 5 is threadedly sleeved in the threaded hole 4. Both ends of the threaded rod 5 extend out of the threaded hole 4. One end of the threaded rod 5 located inside the plug tube 2 is fixedly connected to a pressing block 6. A fixed cylinder 7 is fixedly connected to the side of the sealing plate 1 close to the plug tube 2. Two sliding holes 8 are symmetrically opened in the vertical side wall of the fixed cylinder 7. A sliding rod 9 is movably sleeved in each of the two sliding holes 8. One end of the sliding rod 9 close to the plug tube 2 is fixedly connected to a pressing plate 10.

[0023] In the above embodiment, during use, the plug tube 2 is inserted into the steel pipe. The plurality of anti-slip rings 3 provided are in close fit with the inner wall of the steel pipe, so that the plug tube 2 can be clamped on the inner wall of the steel pipe. The threaded rod 5 is rotated. Through the threaded fit between the threaded rod 5 and the threaded hole 4, the threaded rod 5 moves downward. The threaded rod 5 drives the pressing block 6 to move downward. The pressing block 6 presses the two sliding rods 9, so that the two sliding rods 9 can move away from each other. The sliding rod 9 drives the pressing plate 10 to move. The pressing plate 10 presses the plug tube 2, and can apply pressure to the plug tube 2, so that the anti-slip rings 3 on the plug tube 2 are more closely attached to the inner wall of the steel pipe, effectively improving the frictional resistance between the protection cap and the steel pipe, effectively improving the stability of the connection between the protection cap and the steel pipe, and being able to prevent the protection cap from falling off the steel pipe, and improving the stability of the installation of the protection cap.

[0024] Two fixing blocks 11 are symmetrically and fixedly connected to the upper side of the sealing plate 1. A shaft hole 12 is opened in each of the two fixing blocks 11. A rotating shaft 13 is rotatably connected in each of the two shaft holes 12. The same pull rod 14 is fixedly connected between the two rotating shafts 13. The provided pull rod 14 can improve the convenience of pulling the protection cap, thereby improving the convenience of disassembling the protection cap.

[0025] A sealing ring 15 is fixedly connected to the side wall of the lower side of the sealing plate 1. The sealing ring 15 is fixedly sleeved outside the plug tube 2. The provided sealing ring 15 can improve the sealing performance between the protection cap and the steel pipe.

[0026] The upper end of the threaded rod 5 is fixedly connected with a screwing plate 16, and a plurality of anti-slip grooves 17 are uniformly formed in the screwing plate 16. The provided screwing plate 16 can improve the convenience of rotating the threaded rod 5.

[0027] The specific shape of the pressing plate 10 is an arc structure matching the inner wall of the insertion tube 2, which can improve the fitting effect between the pressing plate 10 and the insertion tube 2.

[0028] The specific shapes of the sliding hole 8 and the sliding rod 9 are both rectangular structures. The provided rectangular structure can prevent the sliding rod 9 from rotating in the sliding hole 8 and improve the sliding stability of the sliding rod 9.

[0029] One end of the insertion tube 2 away from the sealing plate 1 is fixedly connected with a tapered tube 18. The provided tapered tube 18 can improve the smoothness of inserting the protective cap into the steel pipe.

[0030] The specific shape of the extrusion block 6 is conical, and the diameter of the upper end of the extrusion block 6 is larger than that of the lower end. The provided conical extrusion block 6 can improve the cooperation effect between the extrusion block 6 and the sliding rod 9.

[0031] Working principle: When in use, insert the insertion tube 2 into the steel pipe. The provided plurality of anti-slip rings 3 are closely attached to the inner wall of the steel pipe, so that the insertion tube 2 can be clamped on the inner wall of the steel pipe. Rotate the threaded rod 5. Through the thread fit between the threaded rod 5 and the threaded hole 4, the threaded rod 5 moves downward. The threaded rod 5 drives the extrusion block 6 to move downward. The extrusion block 6 extrudes the two sliding rods 9, so that the two sliding rods 9 can move away from each other. The sliding rod 9 drives the pressing plate 10 to move, and the pressing plate 10 presses the insertion tube 2, which can apply pressure to the insertion tube 2, so that the anti-slip rings 3 on the insertion tube 2 are more closely attached to the inner wall of the steel pipe, effectively improving the frictional resistance between the protective cap and the steel pipe, effectively improving the stability of the connection between the protective cap and the steel pipe, being able to prevent the protective cap from falling off the steel pipe, and improving the installation stability of the protective cap.

[0032] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0033] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A corrosion-resistant protection cap for steel pipes, comprising a sealing plate (1), characterized in that: A cannula (2) is fixedly connected to the lower side of the sealing plate (1). A plurality of anti-slip rings (3) are uniformly and fixedly connected to the outer wall of the cannula (2). A threaded hole (4) is formed in the sealing plate (1), and the threaded hole (4) is located at the central position of the sealing plate (1). A threaded rod (5) is threadedly sleeved in the threaded hole (4). Both ends of the threaded rod (5) extend out of the threaded hole (4). An extrusion block (6) is fixedly connected to one end of the threaded rod (5) located inside the cannula (2). A fixed cylinder (7) is fixedly connected to the side of the sealing plate (1) close to the cannula (2). Two sliding holes (8) are symmetrically formed in the vertical side wall of the fixed cylinder (7). A sliding rod (9) is movably sleeved in each of the two sliding holes (8). An extrusion plate (10) is fixedly connected to one end of the sliding rod (9) close to the cannula (2).

2. The corrosion-resistant protection cap for steel pipes according to claim 1, wherein: Two fixing blocks (11) are symmetrically and fixedly connected to the upper side of the sealing plate (1). A shaft hole (12) is formed in each of the two fixing blocks (11). A rotating shaft (13) is rotatably connected in each of the two shaft holes (12). A same pull rod (14) is fixedly connected between the two rotating shafts (13).

3. The corrosion-resistant protection cap for steel pipes according to claim 2, characterized in that: A sealing ring (15) is fixedly connected to the side wall of the lower side of the sealing plate (1), and the sealing ring (15) is fixedly sleeved outside the cannula (2).

4. The corrosion-resistant protection cap for steel pipes according to claim 3, characterized in that: A screwing plate (16) is fixedly connected to the upper end of the threaded rod (5), and a plurality of anti-slip grooves (17) are uniformly formed in the screwing plate (16).

5. The corrosion-resistant protection cap for steel pipes according to claim 4, characterized in that: The specific shape of the extrusion plate (10) is an arc-shaped structure matching the inner wall of the cannula (2).

6. The corrosion-resistant protection cap for steel pipes according to claim 5, wherein: The specific shapes of the sliding hole (8) and the sliding rod (9) are both rectangular structures.

7. A corrosion-resistant protection cap for steel pipes according to claim 6, characterized in that: A tapered tube (18) is fixedly connected to the end of the cannula (2) far from the sealing plate (1).

8. A corrosion-resistant protection cap for steel pipes, characterized in that: The specific shape of the extrusion block (6) is conical, and the diameter of the upper end of the extrusion block (6) is larger than that of the lower end.

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