Antioxidant stainless steel seamless steel pipe for automobile exhaust purification device

Abstract

The utility model relates to the technical field of seamless steel tubes, and discloses an anti-oxidation stainless steel seamless steel tube for an automobile exhaust purification device, which comprises a tube body, connecting flanges for connection are fixedly connected to the left end and the right end of the tube body, and a plurality of reinforcing rings are fixedly connected to the outside of the tube body. Protective covers for protection are arranged on the upper side and the lower side of the pipe body, a plurality of reinforcing strips are fixedly connected to the inner sides of the protective covers, bayonets are formed in the lower sides of the reinforcing strips, and the inner walls of the bayonets are tightly matched with the outer walls of the reinforcing rings. According to the utility model, the tightening latches are matched with the clamping blocks, so that the two protective covers can be mounted outside the pipe body, the bayonets arranged on the reinforcing strips are matched with the reinforcing strips, the strength of the pipe body can be increased through the matching of the reinforcing strips and the bayonets, the pipe body is protected inside by the protective covers, the oxidation resistance of the pipe body is improved, and the service life of the pipe body is prolonged. And the joint of the seamless steel pipe is covered by the two arc-shaped plates, so that the seamless steel pipe is protected, and the service life is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of seamless steel pipe technology, and in particular to an anti-oxidation stainless steel seamless steel pipe for automobile exhaust purification devices. Background Technology

[0002] An automotive exhaust purification device is used to purify automotive exhaust, converting it into harmless gases such as nitrogen, carbon dioxide, and water vapor. In this device, seamless steel pipes act as channels for transporting exhaust gases. Their smooth inner walls reduce resistance to gas flow, allowing the exhaust gases to pass smoothly through the purification system. This improves the efficiency of exhaust gas treatment and ensures sufficient contact time between the exhaust gases and the catalyst within the purification system, thereby achieving effective conversion of harmful substances.

[0003] In the existing technology, the seamless steel pipes used in exhaust gas purification devices are not equipped with protective measures and are directly exposed to the outside world. They are affected by external factors, such as prolonged contact with water stains, which will cause the seamless steel pipes to oxidize faster. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing an anti-oxidation stainless steel seamless steel pipe for automotive exhaust purification devices. This pipe can protect the seamless steel pipe and improve its anti-oxidation ability and strength.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] An anti-oxidation stainless steel seamless steel pipe for an automotive exhaust purification device includes a pipe body. Both ends of the pipe body are fixedly connected to connecting flanges. Multiple reinforcing rings are fixedly connected to the outside of the pipe body. Protective covers are provided on the upper and lower sides of the pipe body for protection. Multiple reinforcing strips are fixedly connected to the inner side of the protective covers. A bayonet is provided on the lower side of the reinforcing strip, and the inner wall of the bayonet fits tightly against the outer wall of the reinforcing ring.

[0007] Furthermore, waterproof strips are provided at both the front and rear ends of the protective cover, and the inner wall of the waterproof strip fits tightly against the outer wall of the end of the protective cover.

[0008] Furthermore, side plates are fixedly connected to the inner sides of both ends of the protective cover, and the inner wall of the side plate fits tightly against the outer wall of the tube.

[0009] Furthermore, the protective cover on the upper side of the tube body is fixedly connected to both the front and rear sides with fixing blocks, and the inner side of the fixing blocks is rotatably connected with bolts.

[0010] Furthermore, the protective cover on the lower side of the tube body is fixedly connected to both the front and rear sides with locking blocks, and the middle of the locking blocks has an opening for cooperating with the bolt rod.

[0011] Furthermore, connecting plates are fixedly connected to the outer walls of both the left and right ends of the protective cover, and limit rods are fixedly connected inside the connecting plates.

[0012] Furthermore, an arc-shaped plate is provided on the outside of the connecting plate, and the outer wall of the opposite end of the arc-shaped plate fits tightly against the outer wall of the protective cover.

[0013] This utility model has the following beneficial effects:

[0014] 1. In this utility model, by cooperating with the set bolt and the locking block, two protective covers can be installed on the outside of the pipe body, so that the locking slot set on the reinforcing strip cooperates with the reinforcing strip. By cooperating with the locking slot, the strength of the pipe body can be increased, and the set protective covers protect the pipe body inside and improve the oxidation resistance of the pipe body.

[0015] 2. In this utility model, the arc-shaped plate can be moved left and right by the limiting rod. The seamless steel pipe connection is covered inside by the upper and lower arc-shaped plates to protect it and improve its service life. Attached Figure Description

[0016] Figure 1 This is an overall schematic diagram of an anti-oxidation stainless steel seamless steel pipe for an automobile exhaust purification device proposed in this utility model.

[0017] Figure 2 This is a schematic diagram of a protective cover for an anti-oxidation stainless steel seamless steel pipe used in an automotive exhaust purification device, as proposed in this utility model.

[0018] Figure 3 This is a schematic diagram of an arc-shaped plate of an anti-oxidation stainless steel seamless steel pipe for an automobile exhaust purification device proposed in this utility model.

[0019] Legend:

[0020] 1. Pipe body; 2. Connecting flange; 3. Reinforcing ring; 4. Protective cover; 5. Reinforcing strip; 6. Bayonet; 7. Waterproof strip; 8. Side plate; 9. Fixing block; 10. Bolt rod; 11. Clamping block; 12. Connecting plate; 13. Limiting rod; 14. Arc plate. Detailed Implementation

[0021] 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.

[0022] Reference Figures 1-3 This utility model provides an embodiment of an anti-oxidation stainless steel seamless steel pipe for an automotive exhaust purification device, comprising a pipe body 1, connecting flanges 2 fixedly connected to both the left and right ends of the pipe body 1, multiple reinforcing rings 3 fixedly connected to the outside of the pipe body 1, protective covers 4 provided on both the upper and lower sides of the pipe body 1, multiple reinforcing strips 5 fixedly connected to the inner side of the protective cover 4, a notch 6 provided on the lower side of the reinforcing strip 5, the inner wall of the notch 6 tightly fitting against the outer wall of the reinforcing ring 3, waterproof strips 7 provided at both the front and rear ends of the protective cover 4, the inner wall of the waterproof strip 7 tightly fitting against the outer wall of the end of the protective cover 4, and side plates 8 fixedly connected to the inner sides of both the left and right ends of the protective cover 4, the inner wall of the side plates 8 tightly fitting against the outer wall of the pipe body 1.

[0023] The reinforcing ring 3 is fixedly connected to the outside of the pipe body 1. The reinforcing ring 3 can increase the pressure resistance of the pipe body 1. The upper and lower protective covers 4 can cover the pipe body 1 inside, protecting it from the influence of the external environment, which would accelerate the oxidation rate. The reinforcing strip 5 inside the protective cover 4 is embedded in the outside of the reinforcing ring 3. The reinforcing strip 5 can distribute the pressure to the reinforcing rings 3 on the left and right sides, preventing excessive pressure from acting on a single reinforcing ring 3 and causing damage, thereby indirectly improving the pressure resistance of the seamless steel pipe.

[0024] Reference Figures 1-3 The protective cover 4 on the upper side of the pipe body 1 is fixedly connected to the front and rear sides with fixing blocks 9. The inner side of the fixing block 9 is rotatably connected with a bolt 10. The protective cover 4 on the lower side of the pipe body 1 is fixedly connected to the front and rear sides with locking blocks 11. The middle of the locking block 11 is provided with an opening for cooperating with the bolt 10.

[0025] Two protective covers 4 are placed over the outside of the pipe body 1. By rotating the bolt 10, its lower end is inserted into the inside of the locking block 11. By rotating the nut on the outside of the lower end of the bolt 10, it can cooperate with the locking block 11 to install the protective cover 4 on the outside of the pipe body 1.

[0026] Reference Figures 1-3 The outer walls of the left and right ends of the protective cover 4 are fixedly connected with connecting plates 12. The inner walls of the connecting plates 12 are fixedly connected with limit rods 13. The outer walls of the connecting plates 12 are provided with arc-shaped plates 14. The outer walls of the opposite ends of the arc-shaped plates 14 are tightly fitted with the outer walls of the protective cover 4.

[0027] The arc-shaped plate 14 can be moved left and right by the limiting rod 13. After the protective cover 4 is installed outside the pipe body 1, the arc-shaped plate 14 is pushed to both ends to cover the seamless steel pipe connection and protect it.

[0028] Working principle: Two protective covers 4 are installed on the upper and lower sides of the pipe body 1. By rotating, the lower end of the bolt 10 is embedded in the locking block 11, and the protective cover 4 is fixed by the nut at the lower end of the bolt 10, so that it is installed on the outside of the pipe body 1. The reinforcing strip 5 inside the protective cover 4 has a locking slot 6, which fits tightly with the outer wall of the reinforcing ring 3. The reinforcing ring 3 and the reinforcing strip 5 can increase the strength of the seamless steel pipe. The protective cover 4 covers the pipe body 1 inside, protects it, and reduces its oxidation rate. The arc plate 14 can be moved left and right by the limiting rod 13. After the protective cover 4 is installed on the outside of the pipe body 1, the arc plate 14 is pushed to both ends to cover the connection of the seamless steel pipe and protect it.

[0029] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. 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. An antioxidant stainless steel seamless pipe for an automotive exhaust purification device, characterized in that, The utility model relates to a kind of pipe bodies, the left and right ends of the pipe body (1) are both fixedly connected with the connecting flange (2) for connection, the outside of the pipe body (1) is fixedly connected with multiple reinforcing rings (3), the upper and lower sides of the pipe body (1) are both provided with the protective cover (4) for protection, the inner side of the protective cover (4) is fixedly connected with multiple reinforcing strips (5), the lower side of the reinforcing strip (5) is provided with the bayonet (6), the inner wall of the bayonet (6) and the outer wall of reinforcing ring (3) are closely matched.

2. The oxidation-resistant, seamless stainless steel tube for an automobile exhaust purification device according to claim 1, characterized by: The front and rear ends of the protective cover (4) are both provided with the waterproof strip (7), and the inner wall of the waterproof strip (7) is closely matched with the end outer wall of the protective cover (4).

3. The oxidation resistant stainless steel seamless pipe for automobile exhaust purification device according to claim 1, characterized by: The inner side of the left and right ends of the protective cover (4) is fixedly connected with the side plate (8), and the inner wall of the side plate (8) is closely matched with the outer wall of the pipe body (1).

4. The oxidation-resistant, seamless stainless steel tube for an automobile exhaust purification device according to claim 1, characterized by: The front and rear sides of the protective cover (4) on the upper side of the pipe body (1) are both fixedly connected with the fixed block (9), and the inner side of the fixed block (9) is rotatably connected with the bolt rod (10).

5. The oxidation-resistant, seamless stainless steel tube for an automobile exhaust purification device according to claim 1, characterized by: The front and rear sides of the protective cover (4) on the lower side of the pipe body (1) are both fixedly connected with the clamping block (11), and the middle part of the clamping block (11) is provided with the opening for cooperation with the bolt rod (10).

6. The oxidation-resistant, seamless stainless steel tube for an automobile exhaust purification device according to claim 5, characterized by: The outer wall of the left and right ends of the protective cover (4) is fixedly connected with the connecting plate (12), and the inside of the connecting plate (12) is fixedly connected with the limiting rod (13).

7. The oxidation-resistant, seamless stainless steel tube for an automobile exhaust purification device according to claim 6, characterized by: The outer part of the connecting plate (12) is provided with the arc-shaped plate (14), and the outer wall of the opposite end of the arc-shaped plate (14) is closely matched with the outer wall of the protective cover (4).

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