Stainless steel pipe with corrosion resistant welded joints

Abstract

The utility model relates to stainless steel pipe technical field especially is a kind of stainless steel pipe with corrosion -resistant welded joint, including stainless steel pipe body, the outer wall of stainless steel pipe body is provided with welding mechanism, it is used for the welding of stainless steel pipe body, by setting a kind of stainless steel pipe with corrosion -resistant welded joint, welding assembly stainless steel pipe body using the welding mechanism in the device, solve the problem that the welded joint part of current stainless steel pipe is prone to corrosion when using, affect the problem of overall structural integrity.

Description

Technical Field

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

[0002] Stainless steel pipe is a hollow, long, round steel material, mainly used in industrial pipelines for petroleum, chemical, medical, food, light industry, and machinery, as well as mechanical structural components. Stainless steel pipes are fitted with welded joints at both ends for easy welding and assembly.

[0003] However, existing stainless steel pipes still have shortcomings, specifically: when used, the welded joints of existing stainless steel pipes are prone to corrosion, which affects the integrity of the overall structure. Utility Model Content

[0004] The purpose of this invention is to provide a stainless steel pipe with a corrosion-resistant welded joint to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A stainless steel pipe with a corrosion-resistant welded joint includes a stainless steel pipe body, the outer wall of which is provided with a welding mechanism for welding the stainless steel pipe body.

[0006] As a preferred embodiment of this utility model, the welding mechanism includes a connecting pipe fixedly connected to the outer wall of the stainless steel pipe body. A welding joint is fixedly connected to the outer surface of the connecting pipe at the end away from the stainless steel pipe body. An internally threaded sleeve is threadedly connected to the outer wall of the connecting pipe. A connecting block is slidably connected to the outer wall of the internally threaded sleeve. A sealing sleeve is fixedly connected to the outer surface of the connecting block at the side away from the internally threaded sleeve. A guide pipe is fixedly connected to the center of the inner part of the sealing sleeve. A sealing airbag is fixedly connected to the outer wall of the guide pipe at the side near the internally threaded sleeve. A moisture-absorbing pad is fixedly connected to the outer wall of the sealing airbag at the side near the welding joint. An air inlet pipe is fixedly connected to the center of the top of the guide pipe. An anti-corrosion block is fixedly connected to the outer wall of the welding head.

[0007] As a preferred embodiment of this utility model, the welding mechanism is provided in two sets, and the two sets of welding mechanisms are symmetrically arranged at both ends of the stainless steel pipe body, and the surface of the stainless steel pipe body is coated with anti-slip coating.

[0008] Through the above technical solution, the anti-slip coating can increase the surface friction of the stainless steel pipe body, making it easier for workers to handle the stainless steel pipe body.

[0009] As a preferred embodiment of this utility model, the connecting pipe, the internal threaded sleeve, the connecting block and the sealing sleeve are all made of aluminum alloy. The connecting block has an L-shaped structure design, and the connecting block extends through and beyond the internal threaded sleeve. Multiple sets of the connecting block are provided.

[0010] As a preferred embodiment of this utility model, the moisture-absorbing pad is made of water-absorbing resin, the top end of the air inlet pipe is threaded with a sealing plug, and the top of the sealing plug is fixedly connected with a handle, and the air inlet pipe passes through and extends to the outside of the sealing sleeve.

[0011] The above technical solution allows workers to easily unscrew the sealing plug in the air intake pipe.

[0012] As a preferred embodiment of this utility model, the sealing sleeve and the connecting pipe are connected by a sliding connection, a rubber sealing ring is fixedly connected to the outer wall of the sealing sleeve, and the guide pipe, the sealing airbag and the moisture-absorbing pad are all designed with annular structure.

[0013] As a preferred embodiment of this utility model, the anti-corrosion block is made of zinc alloy, the anti-corrosion block has an arc-shaped structure design, and four sets of anti-corrosion blocks are provided.

[0014] Compared with the prior art, the beneficial effects of this utility model are: 1. In this utility model, a stainless steel pipe with a corrosion-resistant welded joint is provided. The welding mechanism in the device is used to weld and assemble the stainless steel pipe body. The welded joints of two stainless steel pipe bodies are tightly attached together and welded with a welding torch. After welding, the internal threaded sleeves located on both sides of the welding area are rotated. The rotating internal threaded sleeves move along the connecting pipe. The internal threaded sleeves push the sealing sleeves close to the welding area through the connecting block. The sealing sleeves on the two stainless steel pipe bodies will stick together tightly and cover the welding position on the welded joint. The sealing plug in the air inlet pipe is rotated and high-pressure air is introduced into the air inlet pipe. The high-pressure air flows into the guide pipe along the air inlet pipe and into the sealing airbag along the guide pipe. The sealing airbags collide and expand, sticking tightly to the outer wall of the welded joint. The sealing airbags located on both sides of the welding area prevent outside air from flowing in. At the same time, the moisture-absorbing pad on the outer wall of the sealing airbag can absorb moisture in the air inside the sealing sleeve, keeping the welding area of ​​the welded joint in a dry environment. The welding area is not easy to corrode, which solves the problem that the welding joint of existing stainless steel pipes is prone to corrosion during use, affecting the overall structural integrity. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is an exploded view of the three-dimensional structure of this utility model; Figure 3This is a front sectional view of the connecting pipe of this utility model; Figure 4 This utility model Figure 3 Enlarged view of point A in the middle.

[0016] In the figure: 1. Stainless steel pipe body; 2. Welding mechanism; 201. Connecting pipe; 202. Welding joint; 203. Internal threaded sleeve; 204. Connecting block; 205. Sealing sleeve; 206. Guide pipe; 207. Sealing airbag; 208. Moisture-absorbing pad; 209. Air inlet pipe; 210. Anti-corrosion block. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0018] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, and several embodiments of the utility model will be provided. However, the utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and complete.

[0019] For examples, please refer to Figure 1-4 This utility model provides a technical solution: A stainless steel pipe with a corrosion-resistant welded joint includes a stainless steel pipe body 1, and a welding mechanism 2 is provided on the outer wall of the stainless steel pipe body 1 for welding the stainless steel pipe body 1.

[0020] The welding mechanism 2 is provided in two sets, and the two sets of welding mechanisms 2 are symmetrically arranged at both ends of the stainless steel pipe body 1. The surface of the stainless steel pipe body 1 is coated with anti-slip paint, which can increase the surface friction of the stainless steel pipe body 1 and make it easier for workers to handle the stainless steel pipe body 1.

[0021] In this embodiment, reference Figure 3 and Figure 4The welding mechanism 2 includes a connecting pipe 201 fixedly connected to the outer wall of the stainless steel pipe body 1. A welding joint 202 is fixedly connected to the outer surface of the connecting pipe 201 at the end away from the stainless steel pipe body 1. An internal threaded sleeve 203 is threadedly connected to the outer wall of the connecting pipe 201. A connecting block 204 is slidably connected to the outer wall of the internal threaded sleeve 203. A sealing sleeve 205 is fixedly connected to the outer surface of the connecting block 204 at the side away from the internal threaded sleeve 203. A guide pipe 206 is fixedly connected to the center of the inner part of the sealing sleeve 205. A sealing airbag 207 is fixedly connected to the outer wall of the guide pipe 206 at the side near the internal threaded sleeve 203. A moisture-absorbing pad 208 is fixedly connected to the outer wall of the sealing airbag 207 at the side near the welding joint 202. An air inlet pipe 209 is fixedly connected to the center of the top of the guide pipe 206. An anti-corrosion block 210 is fixedly connected to the outer wall of the welding joint 202.

[0022] The connecting pipe 201, the internal threaded sleeve 203, the connecting block 204 and the sealing sleeve 205 are all made of aluminum alloy. The connecting block 204 has an L-shaped structure design. The connecting block 204 passes through and extends to the outside of the internal threaded sleeve 203. Multiple sets of connecting blocks 204 are provided.

[0023] The moisture-absorbing pad 208 is made of water-absorbing resin. The top of the air inlet pipe 209 is threaded with a sealing plug, and the top of the sealing plug is fixedly connected with a handle. The handle allows the worker to easily unscrew the sealing plug in the air inlet pipe 209. The air inlet pipe 209 passes through and extends to the outside of the sealing sleeve 205.

[0024] The sealing sleeve 205 is connected to the connecting pipe 201 by a sliding connection. A rubber sealing ring is fixedly connected to the outer wall of the sealing sleeve 205. The guide pipe 206, the sealing airbag 207, and the moisture-absorbing pad 208 are all designed with annular structure.

[0025] The anti-corrosion block 210 is made of zinc alloy and has an arc-shaped structure design. There are four sets of anti-corrosion blocks 210.

[0026] The working process of this utility model is as follows: When using the stainless steel pipe with corrosion-resistant welded joint designed in this scheme, the welded joint 202 of two stainless steel pipe bodies 1 are tightly pressed together and welded using a welding torch. After welding, the internally threaded sleeves 203 located on both sides of the welding area are rotated. The rotating internally threaded sleeves 203 will move along the connecting pipe 201. The internally threaded sleeves 203 push the sealing sleeves 205 closer to the welding area through the connecting block 204. The sealing sleeves 205 on the two stainless steel pipe bodies 1 will press tightly together and cover the welding position on the welded joint 202. The sealing plug in the air inlet pipe 209 is rotated to introduce high-pressure air into the air inlet pipe 209. High-pressure air flows into the guide pipe 206 along the inlet pipe 209 and into the sealing airbag 207 along the guide pipe 206. The sealing airbag 207 expands and adheres tightly to the outer wall of the welded joint 202. The sealing airbags 207 located on both sides of the welded area prevent outside air from flowing in. At the same time, the moisture-absorbing pad 208 on the outer wall of the sealing airbag 207 can absorb moisture in the air inside the sealing sleeve 205, keeping the welded area of ​​the welded joint 202 in a dry environment. Meanwhile, the anti-corrosion block 210 made of zinc alloy is chemically active and will be corroded by moisture in the air before the welded joint 202, further improving the corrosion resistance of the welded joint 202.

[0027] All standard parts used in this application can be purchased from the market. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art and are also general components, which are common knowledge in this field.

[0028] 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 stainless steel pipe with a corrosion-resistant welded joint, comprising a stainless steel pipe body (1), characterized in that: The outer wall of the stainless steel pipe body (1) is provided with a welding mechanism (2) for welding the stainless steel pipe body (1).

2. A stainless steel pipe with a corrosion-resistant welded joint according to claim 1, characterized in that: The welding mechanism (2) includes a connecting pipe (201) fixedly connected to the outer wall of the stainless steel pipe body (1). A welding joint (202) is fixedly connected to the outer surface of the connecting pipe (201) at the end away from the stainless steel pipe body (1). An internally threaded sleeve (203) is threadedly connected to the outer wall of the connecting pipe (201). A connecting block (204) is slidably connected to the outer wall of the internally threaded sleeve (203). A sealing sleeve (204) is fixedly connected to the outer surface of the connecting block (204) at the side away from the internally threaded sleeve (203). 5) A guide tube (206) is fixedly connected to the center of the inner part of the sealing sleeve (205). A sealing airbag (207) is fixedly connected to the outer wall of the guide tube (206) and on the side near the internal thread sleeve (203). A moisture-absorbing pad (208) is fixedly connected to the outer wall of the sealing airbag (207) and on the side near the welding joint (202). An air inlet pipe (209) is fixedly connected to the center of the top of the guide tube (206). An anti-corrosion block (210) is fixedly connected to the outer wall of the welding joint (202).

3. A stainless steel pipe with a corrosion-resistant welded joint according to claim 1, characterized in that: The welding mechanism (2) is provided in two sets, and the two sets of welding mechanisms (2) are symmetrically arranged at both ends of the stainless steel pipe body (1). The surface of the stainless steel pipe body (1) is coated with anti-slip paint.

4. A stainless steel pipe with a corrosion-resistant welded joint according to claim 2, characterized in that: The connecting pipe (201), the internal threaded sleeve (203), the connecting block (204) and the sealing sleeve (205) are all made of aluminum alloy. The connecting block (204) has an L-shaped structure design. The connecting block (204) extends through and out of the internal threaded sleeve (203). There are multiple sets of the connecting block (204).

5. A stainless steel pipe with a corrosion-resistant welded joint according to claim 2, characterized in that: The moisture-absorbing pad (208) is made of water-absorbing resin. The top end of the air inlet pipe (209) is threaded with a sealing plug, and the top of the sealing plug is fixedly connected with a handle. The air inlet pipe (209) passes through and extends to the outside of the sealing sleeve (205).

6. A stainless steel pipe with a corrosion-resistant welded joint according to claim 2, characterized in that: The sealing sleeve (205) and the connecting pipe (201) are connected by a sliding connection. A rubber sealing ring is fixedly connected to the outer wall of the sealing sleeve (205). The guide pipe (206), the sealing airbag (207) and the moisture-absorbing pad (208) are all designed with annular structure.

7. A stainless steel pipe with a corrosion-resistant welded joint according to claim 2, characterized in that: The anti-corrosion block (210) is made of zinc alloy and has an arc-shaped structure design. The anti-corrosion block (210) is provided in four groups.

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