Corrosion-resistant galvanized steel pipe convenient to connect

Abstract

The utility model belongs to the technical field of galvanized steel pipes, and particularly relates to a corrosion-resistant galvanized steel pipe convenient to connect, which comprises a steel pipe body, a protective device is arranged outside the steel pipe body, the protective device comprises a wear-resistant layer and a corrosion-resistant layer, and a limiting device is arranged inside the steel pipe body. And the limiting device comprises a circular ring plate, a clamping rod, a limiting rod and a limiting screw rod. According to the corrosion-resistant galvanized steel pipe convenient to connect, a wear-resistant layer and a corrosion-resistant layer prevent the steel pipe bodies from being corroded, when the two steel pipe bodies are connected, a clamping rod is aligned with an inserting groove to be inserted, then one steel pipe body is rotated, it is guaranteed that the clamping rod is clamped into the clamping groove, a spring extrudes a sliding circular plate, and a sliding rod is clamped into an inserting hole; when the two steel pipe bodies are detached, the limiting screw rods are taken down firstly, the circular ring plates and the limiting rods are separated from the steel pipe bodies, at the moment, the connecting rods are pulled to enable the sliding rods to be separated from the inserting holes, and then the steel pipe bodies are rotated to enable the clamping rods to be separated from the clamping grooves.

Description

Technical Field

[0001] This utility model relates to the field of galvanized steel pipe technology, and in particular to a corrosion-resistant galvanized steel pipe that is easy to connect. Background Technology

[0002] For example, in a corrosion-resistant galvanized steel pipe disclosed on the Chinese Patent website, in order to prevent the welded parts of the galvanized steel pipe from being exposed to air for a long time and being corroded, two collars are used to wrap the welded parts of the steel pipe to ensure that the connection between the steel pipes is not affected. However, this design requires more materials and takes more time to disassemble the steel pipes. Utility Model Content

[0003] To address the technical problem that the disassembly and assembly of existing galvanized steel pipes requires a significant amount of materials and time, this utility model proposes a corrosion-resistant galvanized steel pipe that is easy to connect.

[0004] This utility model proposes a corrosion-resistant galvanized steel pipe that is easy to connect, including a steel pipe body. A protective device is provided on the outside of the steel pipe body. The protective device includes a wear-resistant layer and a corrosion-resistant layer. The wear-resistant layer is provided on the outermost surface of the steel pipe body, and the corrosion-resistant layer is provided between the wear-resistant layer and the outer surface of the steel pipe body.

[0005] The steel pipe body is equipped with a limiting device inside. The limiting device includes a circular ring plate, a locking rod, a limiting rod, and a limiting screw. The circular ring plate and the locking rod are inserted into the steel pipe body to make the two steel pipe bodies fit tightly together. The limiting screw rotates into the limiting rod and the steel pipe body to limit the limiting rod.

[0006] Preferably, the corrosion-resistant layer is applied to the outer surface of the steel pipe body, and the wear-resistant layer is applied to the outer surface of the corrosion-resistant layer.

[0007] Through the above technical solution, the wear-resistant layer is made of polyethylene, which has good wear resistance and corrosion resistance and is suitable for making pipes, containers and seals, etc., while the corrosion-resistant layer is made of carbon fiber, which has high axial strength and modulus, low density, high specific performance and good corrosion resistance.

[0008] Preferably, the right end of the steel pipe body is provided with a slot and a groove, the inside of the steel pipe body is provided with an insertion hole located on the side of the groove, the left end of the steel pipe body is provided with a sliding groove, and the limiting rod is slidably inserted into the inside of the sliding groove.

[0009] Through the above technical solution, the slot and groove facilitate the locking mechanism to be locked in the groove, thereby connecting the steel pipe body, and the limiting rod is locked in the sliding groove for sliding.

[0010] Preferably, the annular plate is slidably inserted into the inside of the steel pipe body, and the three limiting rods are arranged in a ring array with the axis of the annular plate as the array center. The limiting screw is threaded into the inside of the limiting rod.

[0011] With the above technical solution, when connecting two steel pipe bodies, the limiting screw passes through the limiting rod of the steel pipe body and is threaded, thereby stably installing the annular plate inside the steel pipe body.

[0012] Preferably, the outer surface of the limiting screw is connected to the internal thread of the steel pipe body, the clamping rod is fixedly installed on the outer surface of the annular plate, and the three clamping rods are arranged in a ring array with the axis of the annular plate as the array center.

[0013] With the above technical solution, the clamping rod is installed on the outside of the circular plate. When the two steel pipe bodies are connected, the clamping rod is inserted into the clamping groove, making it difficult for the two steel pipe bodies to separate.

[0014] Preferably, a sliding rod is slidably inserted inside the clamping rod, a sliding circular plate is fixedly installed on the right side surface of the sliding rod, a slot is opened inside the clamping rod, and the outer surface of the sliding circular plate is slidably connected to the inside of the slot.

[0015] With the above technical solution, the sliding circular plate slides within the slot, ensuring that the sliding rod is stably locked within the locking rod and will not detach from the locking rod.

[0016] Preferably, a spring is fixedly installed on the outer surface of the sliding circular plate, the other end of the spring is fixedly connected to the inner wall of the slot, and a connecting rod is fixedly connected to the outer surface of the sliding circular plate, the outer surface of the connecting rod being slidably connected to the inside of the locking rod.

[0017] Through the above technical solution, the spring presses the sliding circular plate, which allows the sliding rod to be inserted into the insertion hole, so that the locking rod will not move in the slot. The outer surfaces of the circular plate, locking rod, limiting rod and limiting screw in the limiting device are all coated with a corrosion-resistant layer to prevent the relevant mechanisms of the limiting device from being corroded, which would cause the steel pipe connection to loosen.

[0018] The beneficial effects of this utility model are as follows:

[0019] By incorporating protective devices, a wear-resistant layer and a corrosion-resistant layer are installed on the outside of the steel pipe body. The wear-resistant layer prevents wear on the surface of the steel pipe body, while the corrosion-resistant layer prevents corrosion. When connecting two steel pipe bodies, align the left end of one steel pipe body with the right end of the other. During alignment, insert the locking rod into the slot. Then, rotate one of the steel pipe bodies to ensure the locking rod is engaged in the slot, preventing it from moving horizontally and thus preventing the two steel pipe bodies from separating. The spring presses the sliding plate, causing the sliding rod to engage in the insertion hole, preventing the locking rod from moving within the slot. To disassemble two or more steel pipe bodies, first remove the limiting screw, then separate the ring plate and limiting rod from the steel pipe body. At this point, the connecting rod can be pulled to disengage the sliding rod from the insertion hole. Finally, rotate the steel pipe body to disengage the locking rod from the slot. The entire connection mechanism is located inside the steel pipe body, eliminating the need for protective materials and making disassembly and assembly more convenient, thus saving materials and time for disassembling galvanized steel pipes. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of a corrosion-resistant galvanized steel pipe that is easy to connect, as proposed in this utility model.

[0021] Figure 2 This is a three-dimensional view of the steel pipe body structure of a corrosion-resistant galvanized steel pipe that is easy to connect, as proposed in this utility model.

[0022] Figure 3 This is a cross-sectional view of a clamping rod structure for a corrosion-resistant galvanized steel pipe that is easy to connect, as proposed in this utility model.

[0023] Figure 4 This is a cross-sectional view of the steel pipe body structure of a corrosion-resistant galvanized steel pipe that is easy to connect, as proposed in this utility model.

[0024] In the diagram: 1. Steel pipe body; 11. Slot; 12. Card slot; 13. Insertion hole; 14. Slide groove; 2. Wear-resistant layer; 3. Corrosion-resistant layer; 4. Circular ring plate; 5. Card rod; 51. Sliding rod; 52. Sliding circular plate; 53. Empty slot; 54. Spring; 55. Connecting rod; 6. Limiting rod; 7. Limiting screw. Detailed Implementation

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0026] Reference Figure 1-Figure 4A corrosion-resistant galvanized steel pipe that is easy to connect includes a steel pipe body 1. In order to prevent the steel pipe body 1 from being corroded and worn, a protective device is provided on the outside of the steel pipe body 1. The protective device includes a wear-resistant layer 2 and a corrosion-resistant layer 3. The wear-resistant layer 2 is provided on the outermost side of the steel pipe body 1, and the corrosion-resistant layer 3 is provided between the wear-resistant layer 2 and the outer surface of the steel pipe body 1.

[0027] The steel pipe body is equipped with a limiting device inside. The limiting device includes a circular ring plate 4, a locking rod 5, a limiting rod 6, and a limiting screw 7. The circular ring plate 4 and the locking rod 5 are inserted into the steel pipe body to make the two steel pipe bodies 1 fit tightly together. The limiting screw 7 rotates into the limiting rod 6 and the steel pipe body 1 to limit the limiting rod 6.

[0028] To ensure that the steel pipe body is not easily corroded and damaged, a corrosion-resistant layer 3 is applied to the outer surface of the steel pipe body 1, and a wear-resistant layer 2 is applied to the outer surface of the corrosion-resistant layer 3. The wear-resistant layer 2 is made of polyethylene, which has good wear resistance and corrosion resistance and is suitable for making pipes, containers and seals. The corrosion-resistant layer 3 is made of carbon fiber, which has high axial strength and modulus, low density, high specific performance and good corrosion resistance.

[0029] To facilitate the protection of the steel pipe body 1, a slot 11 and a groove 12 are provided inside the right end of the steel pipe body 1. An insertion hole 13 is provided inside the steel pipe body 1 on the side of the groove 12. A sliding groove 14 is provided inside the left end of the steel pipe body 1. The limiting rod 6 is slidably inserted into the sliding groove 14. The slot 11 and the groove 12 facilitate the locking mechanism to be locked in the groove, thereby connecting the steel pipe body 1. The limiting rod 6 is locked in the sliding groove 14 and slides.

[0030] To facilitate the stable installation of the annular plate 4 inside the steel pipe body 1, the annular plate 4 is slidably inserted into the inside of the steel pipe body 1. The three limiting rods 6 are arranged in a ring array with the axis of the annular plate 4 as the array center. The limiting screw 7 is threaded into the inside of the limiting rod 6. When connecting two steel pipe bodies 1, the limiting screw 7 passes through the limiting rod 6 of the steel pipe body 1 and is threaded, thereby stably installing the annular plate 4 inside the steel pipe body 1.

[0031] To ensure that the two steel pipe bodies 1 are not easily separated, the outer surface of the limiting screw 7 is connected to the internal thread of the steel pipe body 1, and the clamping rod 5 is fixedly installed on the outer surface of the annular plate 4. The three clamping rods 5 are arranged in a ring array with the axis of the annular plate 4 as the array center. The clamping rods 5 are installed on the outside of the annular plate 4. When the two steel pipe bodies 1 are connected, the clamping rods 5 are inserted into the clamping groove 12, making it difficult for the two steel pipe bodies 1 to separate.

[0032] To ensure that the sliding rod 51 is stably locked inside the clamping rod 5 and does not detach from the clamping rod 5, the sliding rod 51 is slidably inserted into the clamping rod 5. A sliding circular plate 52 is fixedly installed on the right side surface of the sliding rod 51. A slot 53 is opened inside the clamping rod 5. The outer surface of the sliding circular plate 52 is slidably connected to the inside of the slot 53. The sliding circular plate 52 slides within the slot 53, ensuring that the sliding rod 51 is stably locked inside the clamping rod 5 and does not detach from the clamping rod 5.

[0033] To ensure that the locking rod 5 does not move within the slot 12, a spring 54 is fixedly installed on the outer surface of the sliding circular plate 52. The other end of the spring 54 is fixedly connected to the inner wall of the empty slot 53. A connecting rod 55 is fixedly connected to the outer surface of the sliding circular plate 52. The outer surface of the connecting rod 55 is slidably connected to the inside of the locking rod 5. The spring 54 presses the sliding circular plate 52, allowing the sliding rod 51 to be inserted into the insertion hole 13, so that the locking rod 5 will not move within the slot 12.

[0034] By setting up protective devices, a wear-resistant layer 2 and a corrosion-resistant layer 3 are set on the outside of the steel pipe body 1. The wear-resistant layer 2 is wear-resistant, making the surface of the steel pipe body 1 less prone to wear, and the corrosion-resistant layer 3 prevents the steel pipe body 1 from being corroded. When connecting two steel pipe bodies 1, the left end of one steel pipe body 1 is aligned with the right end of the other steel pipe body 1. During alignment, the locking rod 5 is inserted into the slot 11. Then, one of the steel pipe bodies 1 is rotated to ensure that the locking rod 5 is locked into the slot 12, so that the locking rod 5 cannot move in the horizontal direction, and the two steel pipe bodies 1 cannot be separated. The spring 5... 4. Press the sliding circular plate 52 to make the sliding rod 51 fit into the insertion hole 13, so that the locking rod 5 cannot move in the slot 12. When disassembling two or more steel pipe bodies 1, first remove the limiting screw 7, separate the circular plate 4 and the limiting rod 6 from the steel pipe body 1. At this time, the connecting rod 55 can be pulled to make the sliding rod 51 disengage from the insertion hole 13. Then rotate the steel pipe body 1 to make the locking rod 5 disengage from the slot 12. The entire connecting mechanism is located inside the steel pipe body 1, which eliminates the need for protective materials and makes disassembly and assembly more convenient, achieving the effect of saving galvanized steel pipe disassembly and assembly materials and time.

[0035] Working principle: A wear-resistant layer 2 and a corrosion-resistant layer 3 are installed on the outside of the steel pipe body 1. The wear-resistant layer 2 is wear-resistant, making the surface of the steel pipe body 1 less prone to wear, and the corrosion-resistant layer 3 prevents the steel pipe body 1 from being corroded. When connecting two steel pipe bodies 1, the left end of one steel pipe body 1 is aligned with the right end of the other steel pipe body 1. During alignment, the locking rod 5 is inserted into the slot 11. Then, one of the steel pipe bodies 1 is rotated to make the locking rod 5 engage in the slot 12, preventing the locking rod 5 from being in the water. The two steel pipe bodies 1 are moved horizontally, preventing them from separating. The spring 54 presses the sliding circular plate 52, causing the sliding rod 51 to be inserted into the insertion hole 13, preventing the locking rod 5 from moving within the slot 12. When separating two or more steel pipe bodies 1, first remove the limiting screw 7, then separate the circular plate 4 and the limiting rod 6 from the steel pipe body 1. At this point, the connecting rod 55 can be pulled to disengage the sliding rod 51 from the insertion hole 13. Then, rotate the steel pipe body 1 to disengage the locking rod 5 from the slot 12.

[0036] The above are only preferred specific implementation methods of the present invention, but the protection scope of the present invention is not limited to them. Any technician familiar with the technical field can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention within the technical scope disclosed by the present invention, and they should be covered by the protection scope of the present invention.

Claims

1. A corrosion-resistant galvanized steel pipe that is easy to connect, comprising a steel pipe body (1), characterized in that: The steel pipe body (1) is provided with a protective device on its exterior. The protective device includes a wear-resistant layer (2) and a corrosion-resistant layer (3). The wear-resistant layer (2) is provided on the outermost surface of the steel pipe body (1), and the corrosion-resistant layer (3) is provided between the wear-resistant layer (2) and the outer surface of the steel pipe body (1). The steel pipe body is provided with a limiting device inside. The limiting device includes a ring plate (4), a locking rod (5), a limiting rod (6), and a limiting screw (7). The ring plate (4) and the locking rod (5) are inserted into the steel pipe body to make the two steel pipe bodies (1) fit tightly together. The limiting screw (7) rotates into the limiting rod (6) and the steel pipe body (1) to limit the limiting rod (6).

2. The corrosion-resistant galvanized steel pipe for easy connection according to claim 1, characterized in that: The corrosion-resistant layer (3) is applied to the outer surface of the steel pipe body (1), and the wear-resistant layer (2) is applied to the outer surface of the corrosion-resistant layer (3).

3. The corrosion-resistant galvanized steel pipe for easy connection according to claim 1, characterized in that: The right end of the steel pipe body (1) is provided with a slot (11) and a groove (12). The inside of the steel pipe body (1) is provided with an insertion hole (13) on the side of the groove (12). The left end of the steel pipe body (1) is provided with a sliding groove (14). The limiting rod (6) is slidably inserted into the sliding groove (14).

4. The corrosion-resistant galvanized steel pipe for easy connection according to claim 2, characterized in that: The annular plate (4) is slidably inserted into the inside of the steel pipe body (1), and the three limiting rods (6) are arranged in a ring array with the axis of the annular plate (4) as the array center. The limiting screw (7) is threaded into the inside of the limiting rod (6).

5. The corrosion-resistant galvanized steel pipe for easy connection according to claim 3, characterized in that: The outer surface of the limiting screw (7) is connected to the internal thread of the steel pipe body (1), and the clamping rod (5) is fixedly installed on the outer surface of the annular plate (4). The three clamping rods (5) are arranged in a ring array with the axis of the annular plate (4) as the array center.

6. The corrosion-resistant galvanized steel pipe for easy connection according to claim 4, characterized in that: The locking rod (5) has a sliding rod (51) slidably inserted inside. A sliding circular plate (52) is fixedly installed on the right side surface of the sliding rod (51). A slot (53) is opened inside the locking rod (5). The outer surface of the sliding circular plate (52) is slidably connected to the inside of the slot (53).

7. The corrosion-resistant galvanized steel pipe for easy connection according to claim 6, characterized in that: A spring (54) is fixedly installed on the outer surface of the sliding circular plate (52). The other end of the spring (54) is fixedly connected to the inner wall of the slot (53). A connecting rod (55) is fixedly connected to the outer surface of the sliding circular plate (52). The outer surface of the connecting rod (55) is slidably connected to the inside of the locking rod (5).

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