Wear-resistant and corrosion-resistant composite stainless steel pipe

Abstract

The utility model discloses a kind of wear-resistant corrosion-resistant composite stainless steel pipes, including first steel pipe, the lower end of the first steel pipe is provided with second steel pipe, connecting mechanism for being connected with each other is arranged between the first steel pipe and second steel pipe, the connecting mechanism includes first connector, second connector, first buckle, first limit protrusion, second buckle, second limit protrusion, the lower end of the first steel pipe is fixedly provided with first connector, the upper end of the second steel pipe is fixedly provided with second connector, first buckle is fixedly provided on both sides of the surface of first connector, first limit protrusion is fixedly provided on the side of first buckle.The utility model is provided at traditional steel pipe, and screw type connecting structure that is convenient to connect is arranged, and anti-loose mechanism that prevents vibration from causing device overall loosening leakage is also provided, so that it can guarantee the connecting efficiency between steel pipe, and also can improve connection stability.

Description

Technical Field

[0001] This utility model relates to the field of stainless steel pipe technology, specifically to a wear-resistant and corrosion-resistant composite stainless steel pipe. Background Technology

[0002] Wear-resistant and corrosion-resistant composite stainless steel pipe is a type of pipe that combines different materials through a special process, possessing both wear-resistant and corrosion-resistant properties. It combines the corrosion resistance of stainless steel with the wear-resistant advantages of wear-resistant materials, making it valuable in numerous industrial sectors.

[0003] In the existing technology, such composite stainless steel pipes are often connected using the following methods: press-fit connection, threaded connection, flange connection, etc. This application mainly improves the press-fit connection method for composite stainless steel pipes. The press-fit connection generally uses a special connector to press two steel pipes together, causing the sealing ring to deform elastically, thereby achieving the purpose of sealing and connection.

[0004] The advantage of this connection method in the existing technology is that the connection speed is extremely fast, which can greatly shorten the construction period. However, the connection is not stable enough. Once the connector becomes loose due to vibration, leakage is likely to occur. Therefore, a wear-resistant and corrosion-resistant composite stainless steel pipe is needed to address this problem. Utility Model Content

[0005] The purpose of this invention is to provide a wear-resistant and corrosion-resistant composite stainless steel pipe to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a wear-resistant and corrosion-resistant composite stainless steel pipe, comprising a first steel pipe, a second steel pipe disposed at the lower end of the first steel pipe, and a connecting mechanism for interconnection between the first steel pipe and the second steel pipe, the connecting mechanism comprising a first connector, a second connector, a first buckle, a first limiting protrusion, a second buckle, and a second limiting protrusion; the first connector is fixedly disposed at the lower end of the first steel pipe, and the second connector is fixedly disposed at the upper end of the second steel pipe; the first buckle is fixedly disposed on both sides of the surface of the first connector, and a first limiting protrusion is fixedly disposed on one side of the first buckle; the second buckle is fixedly disposed on both sides of the surface of the second connector, and a second limiting protrusion is fixedly disposed on one side of the second buckle; an anti-loosening mechanism for preventing loosening of the connection is disposed between the second buckle and the first connector.

[0007] Preferably, the anti-loosening mechanism includes locking teeth, a connecting block, and a limiting piece. A plurality of locking teeth are evenly fixedly arranged on the outer surface of the upper end of the second buckle. A connecting block is fixedly arranged on the outer surface of the first connector. A limiting piece is fixedly arranged at the lower end of the connecting block. The anti-loosening mechanism of this device can effectively prevent the first connector and the second connector from rotating and loosening after the first connector and the second connector are mated and screwed together. Furthermore, the anti-loosening mechanism does not affect the rotational connection of the first connector and the second connector, thereby ensuring the connection efficiency between the steel pipes.

[0008] Preferably, the limiting piece is made of an elastic metal material. The elastic metal material of the limiting piece ensures the basic structural strength and allows it to tilt downwards under its own elasticity. Figure 3 As shown, the limiting piece can form a barb at this time, which works in conjunction with the locking teeth to effectively prevent the first connector and the second connector from rotating relative to each other, thus preventing the connection from becoming loose.

[0009] Preferably, sealing rings are fixedly provided on the inner sidewalls of the first connector and the second connector. The sealing rings can ensure that a certain amount of compression occurs after the first connector and the second connector are mated together, thereby ensuring the connection is sealed.

[0010] Preferably, the outer surfaces of the first steel pipe and the second steel pipe are coated with an anti-rust coating, which can improve the corrosion resistance of the first steel pipe and the second steel pipe.

[0011] Preferably, a chamfer is provided on one side of the surface of the first limiting protrusion and the second limiting protrusion. The chamfer makes it easy to fit the first buckle and the second buckle onto the outer surface of the first limiting protrusion and the second limiting protrusion, respectively.

[0012] Compared with the prior art, the beneficial effects of this utility model are: 1. After the first connector and the second connector are rotated and connected, if vibration causes the first connector or the second connector to reverse, the vertical surfaces of the limiting piece and the locking teeth will contact each other, and the limiting piece and the locking teeth will act as barbs between each other; thus, it can prevent the first connector and the second connector from loosening.

[0013] 2. When the first connector and the second connector of this utility model are docked and rotated, the inclined surfaces of the limiting plate and the locking teeth will come into contact. In this way, no obstruction will be formed between the limiting plate and the locking teeth. The first connector and the second connector can rotate freely to ensure docking and fixation, thus ensuring connection efficiency. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of a wear-resistant and corrosion-resistant composite stainless steel pipe according to the present invention. Figure 2 This is a preliminary docking view of the first connector and the second connector in a wear-resistant and corrosion-resistant composite stainless steel pipe according to this utility model. Figure 3 This is a rotational fixing view of the first connector and the second connector in a wear-resistant and corrosion-resistant composite stainless steel pipe according to this utility model. Figure 4 This utility model relates to a wear-resistant and corrosion-resistant composite stainless steel pipe. Figure 3 A magnified view of point A in the middle.

[0015] In the diagram: 1. First steel pipe; 2. Second steel pipe; 3. First connector; 4. Second connector; 5. First buckle; 6. First limiting protrusion; 7. Second buckle; 8. Second limiting protrusion; 9. Clamping tooth; 10. Connecting block; 11. Limiting plate; 12. Sealing ring; 13. Chamfer. Detailed Implementation

[0016] 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.

[0017] Please see Figure 1-4 This utility model provides a technical solution: a wear-resistant and corrosion-resistant composite stainless steel pipe, including a first steel pipe 1, a second steel pipe 2 at the lower end of the first steel pipe 1, and a connecting mechanism for interconnection between the first steel pipe 1 and the second steel pipe 2. The connecting mechanism includes a first connector 3, a second connector 4, a first buckle 5, a first limiting protrusion 6, a second buckle 7, and a second limiting protrusion 8. The first connector 3 is fixedly installed at the lower end of the first steel pipe 1, and the second connector 4 is fixedly installed at the upper end of the second steel pipe 2. The first buckle 5 is fixedly installed on both sides of the surface of the first connector 3, and the first limiting protrusion 6 is fixedly installed on one side of the first buckle 5. The second buckle 7 is fixedly installed on both sides of the surface of the second connector 4, and the second limiting protrusion 8 is fixedly installed on one side of the second buckle 7. An anti-loosening mechanism is provided between the second buckle and the first connector 3 to prevent loosening of the connection.

[0018] The anti-loosening mechanism includes locking teeth 9, connecting blocks 10, and limiting plates 11. Several locking teeth 9 are evenly fixedly arranged on the outer surface of the upper end of the second buckle. The connecting block 10 is fixedly arranged on the outer surface of the first connector 3. The limiting plate 11 is fixedly arranged at the lower end of the connecting block 10. After the first connector 3 and the second connector 4 are mated and screwed together, the anti-loosening mechanism of this device can effectively prevent the first connector 3 and the second connector 4 from rotating and loosening. Furthermore, the anti-loosening mechanism does not affect the rotational connection of the first connector 3 and the second connector 4, thereby ensuring the connection efficiency between the steel pipes. The limiting piece 11 is made of an elastic metal material. The elastic metal limiting piece 11 ensures the basic structural strength and can tilt downwards under its own elasticity. Figure 3 As shown, at this time, the limiting piece 11 can form a barb, which cooperates with the locking tooth 9 to effectively prevent the first connector 3 and the second connector 4 from rotating relative to each other, thus preventing the connection from becoming loose. A sealing ring 12 is fixedly provided on the inner sidewall of the first connector 3 and the second connector 4. The sealing ring 12 can ensure that a certain amount of compression occurs after the first connector 3 and the second connector 4 are mated together, thereby ensuring the connection is sealed. The outer surfaces of the first steel pipe 1 and the second steel pipe 2 are coated with an anti-rust coating, which can improve the corrosion resistance of the first steel pipe 1 and the second steel pipe 2. The first limiting protrusion 6 and the second limiting protrusion 8 are provided with a chamfer 13 on one side of their surfaces. The chamfer 13 makes it easy to fit the first buckle 5 and the second buckle 7 onto the outer surfaces of the first limiting protrusion 6 and the second limiting protrusion 8, respectively.

[0019] Working principle: When using this device, the connection method between the first steel pipe 1 and the second steel pipe 2 is as follows: first, connect the first connector 3 and the second connector 4 together to form... Figure 2 As shown in the diagram, with the second steel pipe 2 stationary, the first steel pipe 1 is rotated clockwise. This allows the first buckle 5 and the second buckle 7 to be respectively fitted onto the surfaces of the second limiting protrusion 8 and the first limiting protrusion 6, thus completing the quick connection of the two steel pipes. During the docking rotation, the inclined surfaces of the limiting piece 11 and the locking tooth 9 will contact each other, preventing obstruction between them. The first connector 3 and the second connector 4 can rotate freely to ensure docking and fixation, guaranteeing connection efficiency. After the first connector 3 and the second connector 4 are rotated and docked, as shown in the diagram... Figure 3 As shown, if the vibration causes the first connector 3 or the second connector 4 to reverse, the vertical surfaces of the limiting piece 11 and the locking tooth 9 will contact each other, and the limiting piece 11 and the locking tooth 9 will barb each other; thus, it can prevent the first connector 3 and the second connector 4 from loosening. When it is necessary to manually disassemble the first connector 3 and the second connector 4, simply pinch the limiting piece 11 to make the limiting piece 11 and the lower surface of the connecting block 10 fit together. In this way, the first connector 3 or the second connector 4 can be reversed, thereby completing the disassembly of the device.

[0020] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0021] 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 wear-resistant and corrosion-resistant composite stainless steel pipe, comprising a first steel pipe (1), characterized in that: A second steel pipe (2) is provided at the lower end of the first steel pipe (1). A connecting mechanism for connecting the first steel pipe (1) and the second steel pipe (2) is provided between them. The connecting mechanism includes a first connector (3), a second connector (4), a first buckle (5), a first limiting protrusion (6), a second buckle (7), and a second limiting protrusion (8). A first connector (3) is fixedly provided at the lower end of the first steel pipe (1). A second connector (4) is fixedly provided at the upper end of the second steel pipe (2). A first buckle (5) is fixedly provided on both sides of the surface of the first connector (3). A first limiting protrusion (6) is fixedly provided on one side of the first buckle (5). A second buckle (7) is fixedly provided on both sides of the surface of the second connector (4). A second limiting protrusion (8) is fixedly provided on one side of the second buckle (7). An anti-loosening mechanism for preventing loosening of the connection is provided between the second buckle and the first connector (3).

2. The wear-resistant and corrosion-resistant composite stainless steel pipe according to claim 1, characterized in that: The anti-loosening mechanism includes a locking tooth (9), a connecting block (10), and a limiting piece (11). The outer surface of the upper end of the second buckle (7) is uniformly provided with a number of locking teeth (9). The outer surface of the first connector (3) is provided with a connecting block (10). The lower end of the connecting block (10) is provided with a limiting piece (11).

3. The wear-resistant and corrosion-resistant composite stainless steel pipe according to claim 2, characterized in that: The limiting piece (11) is made of elastic metal material.

4. The wear-resistant and corrosion-resistant composite stainless steel pipe according to claim 1, characterized in that: Sealing rings (12) are fixedly provided on the inner sidewalls of the first connector (3) and the second connector (4).

5. The wear-resistant and corrosion-resistant composite stainless steel pipe according to claim 1, characterized in that: The outer surfaces of the first steel pipe (1) and the second steel pipe (2) are coated with an anti-rust coating.

6. The wear-resistant and corrosion-resistant composite stainless steel pipe according to claim 1, characterized in that: The first limiting protrusion (6) and the second limiting protrusion (8) have a chamfer (13) on one side of their surfaces.

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