High-performance compression-resistant wear-resistant composite steel pipe

Abstract

The utility model discloses a high-performance compression-resistant wear-resistant composite steel pipe, and belongs to the technical field of composite steel pipes. Comprising an inner pipe and an outer pipe, a plurality of rubber buffer layers are arranged between the inner pipe and the outer pipe, a containing groove is formed between every two adjacent rubber buffer layers, a row of buffer mechanisms are arranged in each containing groove, and two positioning rings are arranged between the inner pipe and the outer pipe; the two positioning rings are located at the two ends of the rubber buffer layers correspondingly, the positioning rings and the outer pipe are connected through the connecting mechanisms, the multiple rubber buffer layers are arranged between the inner pipe and the outer pipe, a row of buffer mechanisms are arranged between every two adjacent rubber buffer layers, and therefore the buffer performance of the steel pipe can be effectively improved; and by arranging a positioning ring, the multiple rubber buffer layers can be clamped and limited, and therefore the situation that the rubber buffer layers shift in the using process, and the buffer effect is affected can be prevented.

Description

Technical Field

[0001] This utility model relates to the field of composite steel pipe technology, and in particular to a high-performance pressure-resistant and wear-resistant composite steel pipe. Background Technology

[0002] In various industrial sectors and infrastructure construction, steel pipes play an irreplaceable role as key components for transporting media and supporting structures. However, harsh working environments place extremely high demands on the performance of steel pipes, and ordinary steel pipes can no longer meet the needs of complex working conditions. As a result, high-performance pressure-resistant and wear-resistant composite steel pipes have emerged.

[0003] A high-performance pressure-resistant and wear-resistant composite steel pipe with publication number CN212226263U includes a pressure-resistant inner pipe and a wear-resistant outer pipe, with an interlayer between the pressure-resistant inner pipe and the wear-resistant outer pipe. The interlayer is filled with a rubber buffer layer, and a support structure is arranged at the end of the interlayer. The outer surface of the wear-resistant outer pipe is coated with a wear-resistant coating.

[0004] The aforementioned device only fills the interlayer between the pressure-resistant inner tube and the wear-resistant outer tube with a rubber buffer layer, which results in poor buffering performance of the steel pipe and affects the overall pressure resistance of the steel pipe. Furthermore, the aforementioned device is not convenient for clamping and limiting the rubber buffer layer in the interlayer, which can easily lead to displacement of the rubber buffer layer and affect the buffering effect. Utility Model Content

[0005] The purpose of this invention is to solve the problems of poor buffering performance of existing composite steel pipes and the inconvenience of clamping and limiting the rubber buffer layer in the interlayer, and to propose a high-performance pressure-resistant and wear-resistant composite steel pipe.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A high-performance pressure-resistant and wear-resistant composite steel pipe includes an inner pipe and an outer pipe. Multiple rubber buffer layers are provided between the inner pipe and the outer pipe. An accommodating groove is formed between two adjacent rubber buffer layers. A row of buffer mechanisms is provided inside each accommodating groove. Two positioning rings are provided between the inner pipe and the outer pipe. The two positioning rings are located at both ends of the rubber buffer layer, and the positioning rings are connected to the outer pipe through a connecting mechanism.

[0008] Preferably, the buffer mechanism includes a first arc-shaped plate and a second arc-shaped plate. The first arc-shaped plate is fixedly connected to the outer surface of the inner tube, and the second arc-shaped plate is fixedly connected to the inner wall of the outer tube. The second arc-shaped plate and the first arc-shaped plate are connected by a first spring.

[0009] Preferably, the connecting mechanism includes a rectangular groove formed inside the positioning ring, a second spring is fixedly connected inside the rectangular groove, and a cylinder is fixedly connected to the other end of the second spring.

[0010] Preferably, a limiting rod is fixedly connected inside the cylinder, and a limiting hole adapted to the limiting rod is opened inside the outer tube. The end of the limiting rod away from the cylinder slides through the positioning ring and is inserted into the limiting hole.

[0011] Preferably, a pull plate is slidably connected inside the rectangular groove, and the pull plate and the cylinder are fixedly connected by a connecting rod.

[0012] Preferably, the inner wall of the inner tube and the outer surface of the outer tube are both coated with a wear-resistant layer.

[0013] Compared with the prior art, this utility model provides a high-performance pressure-resistant and wear-resistant composite steel pipe, which has the following beneficial effects.

[0014] 1. This utility model effectively improves the buffering performance of the steel pipe by setting multiple rubber buffer layers between the inner and outer pipes and setting a row of buffer mechanisms between two adjacent rubber buffer layers, thereby effectively improving the overall compressive strength of the steel pipe.

[0015] 2. By setting a positioning ring, this utility model can clamp and limit multiple rubber buffer layers, thereby preventing the rubber buffer layers from shifting during use and affecting the buffering effect. By setting a connecting mechanism, the positioning ring can be easily fixedly installed inside the outer tube, improving the installation efficiency of the positioning ring. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0017] Figure 2 This is a cross-sectional view of the present invention.

[0018] Figure 3 This is a schematic diagram of the rubber buffer layer and the pressure-resistant mechanism of this utility model.

[0019] Figure 4 This is a schematic diagram of the positioning ring and limiting mechanism of this utility model.

[0020] Figure 5 This is a schematic diagram of the cylinder and the limiting rod of this utility model.

[0021] Figure 6 This utility model Figure 2 An enlarged schematic diagram of the structure at point A in the middle.

[0022] In the picture:

[0023] 1. Inner tube; 2. Outer tube; 3. Rubber buffer layer; 4. First arc plate; 5. Second arc plate; 6. First spring; 7. Second spring; 8. Cylinder; 9. Limiting rod; 10. Pull plate; 11. Rectangular groove; 12. Positioning ring. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] Reference Figure 1-6 A high-performance pressure-resistant and wear-resistant composite steel pipe includes an inner pipe 1 and an outer pipe 2. The inner wall of the inner pipe 1 and the outer surface of the outer pipe 2 are coated with a wear-resistant layer. By setting the wear-resistant layer, the wear resistance of the steel pipe can be effectively improved.

[0026] Multiple rubber buffer layers 3 are provided between the inner tube 1 and the outer tube 2. Adjacent rubber buffer layers 3 form a receiving groove. Each receiving groove is equipped with a row of buffer mechanisms. Through the cooperation between the rubber buffer layers 3 and the buffer mechanisms, the buffer performance of the steel pipe can be effectively improved, thereby effectively improving the overall compressive strength of the steel pipe.

[0027] The buffer mechanism includes a first arc plate 4 and a second arc plate 5. The first arc plate 4 is fixedly connected to the outer surface of the inner tube 1, and the second arc plate 5 is fixedly connected to the inner wall of the outer tube 2. The second arc plate 5 and the first arc plate 4 are connected by a first spring 6. The first spring 6 is a powerful shock-absorbing spring. When the inner tube 1 and the outer tube 2 vibrate under pressure, it can drive the first arc plate 4 or the second arc plate 5 to move accordingly and drive the first spring 6 and the rubber buffer layer 3 to deform, thereby buffering the vibration and improving the compressive strength of the steel pipe.

[0028] Two positioning rings 12 are provided between the inner tube 1 and the outer tube 2. The two positioning rings 12 are located at both ends of the rubber buffer layer 3, and the positioning rings 12 and the outer tube 2 are connected by a connecting mechanism. By setting the positioning rings 12, multiple rubber buffer layers 3 can be clamped and limited, thereby preventing the rubber buffer layers 3 from shifting during use and affecting the buffering effect. By setting the connecting mechanism, the positioning rings 12 can be easily fixedly installed inside the outer tube 2, improving the installation efficiency of the positioning rings 12.

[0029] The connecting mechanism includes a rectangular groove 11 inside the positioning ring 12. A second spring 7 is fixedly connected inside the rectangular groove 11, and a cylinder 8 is fixedly connected to the other end of the second spring 7. A limit rod 9 is fixedly connected inside the cylinder 8. A limit hole adapted to the limit rod 9 is opened inside the outer tube 2. The end of the limit rod 9 away from the cylinder 8 slides through the positioning ring 12 and is inserted into the limit hole. A pull plate 10 is slidably connected inside the rectangular groove 11. The pull plate 10 and the cylinder 8 are fixedly connected by a connecting rod. When installing the positioning ring 12, the two pull plates 10 are first pulled inward. The pull plates 10 can drive the cylinder 8 and the limit rod 9 to move inward and stretch the second spring 7, thus pulling the limit rod 9 inward. After pulling to the maximum extent, insert the positioning ring 12 between the inner tube 1 and the outer tube 2 and make the limiting rod 9 concentric with the limiting hole opened on the outer tube 2. Then release the pull plate 10. Under the action of the second spring 7, the end of the limiting rod 9 away from the pull plate 10 will be inserted into the inside of the limiting hole, thereby fixing the positioning ring 12 inside the outer tube 2. Following the above method, another positioning ring 12 can be fixed inside the outer tube 2. At this time, the two positioning rings 12 can clamp and limit the rubber buffer layer 3. When it is necessary to disassemble the positioning ring 12, simply pull the limiting rod 9 out from the inside of the limiting hole to release the limitation of the positioning ring 12, and then the positioning ring 12 can be taken out from the inside of the outer tube 2.

[0030] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high performance pressure resistant wear resistant composite pipe comprising an inner pipe (1) and an outer pipe (2), characterized in that: A plurality of rubber buffer layers (3) are arranged between the inner tube (1) and the outer tube (2), two adjacent rubber buffer layers (3) form a containing groove, an array of buffer mechanisms is arranged in each containing groove, two positioning rings (12) are arranged between the inner tube (1) and the outer tube (2), the two positioning rings (12) are respectively located at two ends of the rubber buffer layer (3), and the positioning ring (12) and the outer tube (2) are connected through a connecting mechanism.

2. The high-performance, pressure-resistant, wear-resistant composite pipe according to claim 1, characterized in that The buffer mechanism comprises a first arc-shaped plate (4) and a second arc-shaped plate (5), the first arc-shaped plate (4) is fixedly connected with the outer surface of the inner tube (1), the second arc-shaped plate (5) is fixedly connected with the inner wall of the outer tube (2), and the second arc-shaped plate (5) and the first arc-shaped plate (4) are connected through a first spring (6).

3. The high-performance, pressure-resistant, wear-resistant composite pipe of claim 2, wherein, The connecting mechanism comprises a rectangular groove (11) arranged in the positioning ring (12), a second spring (7) is fixedly connected in the rectangular groove (11), and a cylinder (8) is fixedly connected to the other end of the second spring (7).

4. The high-performance, pressure-resistant, wear-resistant composite pipe of claim 3, wherein, A limiting rod (9) is fixedly connected in the cylinder (8), a limiting hole matched with the limiting rod (9) is arranged in the inner tube (2), and the end of the limiting rod (9) away from the cylinder (8) is slidably penetrated through the positioning ring (12) and inserted into the limiting hole.

5. The high performance pressure resistant wear resistant composite pipe according to claim 4, wherein, A pull plate (10) is slidably connected in the rectangular groove (11), and the pull plate (10) and the cylinder (8) are fixedly connected through a connecting rod.

6. The high performance pressure resistant wear resistant composite pipe according to claim 1, wherein, The inner wall of the inner tube (1) and the outer surface of the outer tube (2) are coated with wear-resistant layers.

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