High hardness stainless steel pipe

Abstract

The utility model discloses a high hardness stainless steel pipe, including first connecting pipe and rotating component, first connecting pipe outer wall is equipped with rotating component, rotating component includes the communicating pipe, communicating pipe outer wall is equipped with the rotating pipe, rotating pipe inner wall fixedly connected with the limit ring, communicating pipe inner wall fixedly connected with the limit block, the telescopic groove is seted up in the communicating pipe outer wall, the threaded groove is seted up in rotating pipe inner wall and communicating pipe corresponding department, the through -hole is seted up in communicating pipe inner wall and first connecting pipe corresponding department, first connecting pipe is close to communicating pipe one end fixedly connected with sealing washer. This kind of high hardness stainless steel pipe, through setting rotating component, make when the staff need to carry out the right angle connection mode connection to steel pipe, only need to insert communicating pipe both ends respectively with first connecting pipe and second connecting pipe, eliminate the traditional welding mode in right angle connection for steel pipe, is not favorable to the maintenance and the situation of reformation of later period.

Description

Technical Field

[0001] This utility model relates to the field of stainless steel pipe technology, specifically a high-hardness stainless steel pipe. Background Technology

[0002] Stainless steel pipe is a hollow, long cylindrical steel material. It is used as a pipeline for transporting fluids and is widely used in industrial pipelines such as petroleum, chemical, medical, food, light industry, and machinery and instrumentation, as well as mechanical structural components. According to publication number CN221922322U, a high-hardness stainless steel pipe is disclosed, relating to the field of pipe technology. The stainless steel pipe is internally divided into two reinforced pipe ends and two segmented steel pipes. The two reinforced pipe ends are respectively fixed to both sides of the inner wall of the assembled segmented steel pipes, which strengthens the two pipe ends inside the segmented steel pipes. This makes the connection structure of the stainless steel pipe more stable, thereby increasing the hardness of the pipe ends. This gives the stainless steel pipe ends the advantage of being less prone to deformation and bending under stress, thus solving the problem of the generally low support hardness of traditional stainless steel pipe connections and further improving the practicality of the stainless steel pipe. However, current technologies for right-angle connections of high-hardness stainless steel pipes still have many shortcomings. Traditional connection methods, such as welding, can ensure connection strength to a certain extent, but high-temperature deformation is prone to occur during the welding process, which leads to a decrease in the hardness and corrosion resistance of the stainless steel pipe. At the same time, the welding quality is greatly affected by the operator's skill level, and problems such as incomplete welding and missing welding are easy to occur, leaving safety hazards. In addition, it is difficult to disassemble and adjust the joint after welding, which is not conducive to later maintenance and modification. Utility Model Content

[0003] The purpose of this utility model is to provide a high-hardness stainless steel pipe to solve the problems mentioned in the background art. However, the existing right-angle connection methods for high-hardness stainless steel pipes still have many shortcomings. Traditional connection methods such as welding can ensure the connection strength to a certain extent, but high-temperature deformation is easily generated during the welding process, which leads to a decrease in the hardness and corrosion resistance of the stainless steel pipe. At the same time, the welding quality is greatly affected by the operator's skill level, and problems such as false welding and missing welding are easy to occur, leaving safety hazards. In addition, it is difficult to disassemble and adjust the joint after welding, which is not conducive to later maintenance and modification.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a high-hardness stainless steel pipe, comprising a first connecting pipe and a rotating assembly, wherein the rotating assembly is sleeved on the outer wall of the first connecting pipe, the rotating assembly includes a connecting pipe, the rotating pipe is sleeved on the outer wall of the connecting pipe, a limiting ring is fixedly connected to the inner wall of the rotating pipe, a limiting block is fixedly connected to the inner wall of the connecting pipe, an expansion groove is formed on the outer wall of the connecting pipe, a threaded groove is formed on the inner wall of the rotating pipe corresponding to the connecting pipe, a through hole is formed on the inner wall of the connecting pipe corresponding to the first connecting pipe, and a sealing ring is fixedly connected to one end of the first connecting pipe near the connecting pipe.

[0005] Preferably, a second connecting pipe is provided on the inner wall of the end of the connecting pipe away from the first connecting pipe, and a third connecting pipe is provided on the side of the first connecting pipe away from the connecting pipe.

[0006] Preferably, a first mounting block is provided at the top of the outer wall of the third connecting pipe, and a second mounting block is provided at the bottom of the outer wall of the third connecting pipe.

[0007] Preferably, threaded rods are provided at corresponding positions on the inner walls of the first mounting block and the second mounting block, and a fixing block is provided at the bottom of the outer wall of the second mounting block.

[0008] Preferably, the threaded rod is threadedly connected to the fixing block, and the inner walls of the first and second mounting blocks are provided with mounting grooves corresponding to the third connecting pipe.

[0009] Preferably, the threaded rod is slidably connected to the first mounting block and the second mounting block respectively, and the first connecting pipe and the second connecting pipe are slidably connected to the connecting pipe respectively.

[0010] Compared with the prior art, the beneficial effects of this utility model are: 1. By setting up a rotating component, when workers need to connect steel pipes at right angles, they only need to insert the first connecting pipe and the second connecting pipe into the two ends of the connecting pipe respectively, eliminating the problem of difficult maintenance and modification in the later stage when connecting steel pipes at right angles in the traditional welding method. 2. By setting up a first mounting block, a second mounting block, a threaded rod, and a fixing block, when workers need to connect steel pipes in a straight line, they can manually rotate the fixing block to clamp the first and second mounting blocks onto the outer wall of the steel pipe. The whole process is convenient. Attached Figure Description

[0011] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional structural diagram of the first mounting block and the second mounting block in this utility model; Figure 3 This is a schematic diagram of the cross-sectional structure of the rotating tube in this utility model; Figure 4 This is a schematic diagram of the cross-sectional structure of the connecting pipe in this utility model.

[0012] In the diagram: 1. First connecting pipe; 201. Connecting pipe; 202. Rotating pipe; 203. Limiting ring; 204. Limiting block; 205. Expansion groove; 206. Threaded groove; 207. Through hole; 208. Sealing ring; 3. Second connecting pipe; 4. Third connecting pipe; 5. First mounting block; 6. Second mounting block; 7. Threaded rod; 8. Fixing block; 9. Mounting groove. Detailed Implementation

[0013] 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, those skilled in the art who have not made any innovative embodiments are all within the protection scope of the present utility model.

[0014] Please see Figure 1 , Figure 3 and Figure 4 This utility model provides a technical solution: a high-hardness stainless steel pipe, including a first connecting pipe 1 and a rotating assembly. The rotating assembly is sleeved on the outer wall of the first connecting pipe 1. The rotating assembly includes a connecting pipe 201, a rotating pipe 202 sleeved on the outer wall of the connecting pipe 201, a limiting ring 203 fixedly connected to the inner wall of the rotating pipe 202, a limiting block 204 fixedly connected to the inner wall of the connecting pipe 201, a telescopic groove 205 opened on the outer wall of the connecting pipe 201, a threaded groove 206 opened on the inner wall of the rotating pipe 202 corresponding to the connecting pipe 201, a through hole 207 opened on the inner wall of the connecting pipe 201 corresponding to the first connecting pipe 1, and a sealing ring 208 fixedly connected to one end of the first connecting pipe 1 near the connecting pipe 201. By setting the rotating assembly, when the worker needs to connect the steel pipe at a right angle, he only needs to insert the first connecting pipe 1 and the second connecting pipe 3 into the two ends of the connecting pipe 201 respectively, thus eliminating the disadvantage of subsequent maintenance and modification when connecting the steel pipe at a right angle in the traditional welding method.

[0015] Please see Figure 1 and Figure 2A second connecting pipe 3 is provided on the inner wall of the end of the connecting pipe 201 away from the first connecting pipe 1. A third connecting pipe 4 is provided on the side of the first connecting pipe 1 away from the connecting pipe 201. A first mounting block 5 is provided on the top of the outer wall of the third connecting pipe 4. A second mounting block 6 is provided on the bottom of the outer wall of the third connecting pipe 4. A threaded rod 7 is provided at the corresponding position on the inner wall of the first mounting block 5 and the second mounting block 6. A fixing block 8 is provided at the bottom of the outer wall of the second mounting block 6. The threaded rod 7 is threadedly connected to the fixing block 8. An installation groove 9 is opened on the inner wall of the first mounting block 5 and the second mounting block 6 at the corresponding position on the third connecting pipe 4. The threaded rod 7 is slidably connected to the first mounting block 5 and the second mounting block 6 respectively. The first connecting pipe 1 and the second connecting pipe 3 are slidably connected to the connecting pipe 201 respectively. By setting the first mounting block 5, the second mounting block 6, the threaded rod 7 and the fixing block 8, when the worker needs to connect the steel pipes in a straight line, he can manually rotate the fixing block 8 so that the first mounting block 5 and the second mounting block 6 can clamp the outer wall of the steel pipe. The whole process is convenient.

[0016] Working principle: When the operator needs to connect the steel pipes at a right angle, the first connecting pipe 1 and the second connecting pipe 3 are manually inserted into the inside of the connecting pipe 201. Then, the rotating pipe 202 is manually rotated. At this time, the limiting ring 203 applies pressure to the outer wall of the connecting pipe 201. Then, the limiting block 204 applies pressure to the outer walls of the first connecting pipe 1 and the second connecting pipe 3. At the same time, the expansion groove 205 is tightened, and the sealing ring 208 seals the inside of the pipe. When the steel pipes need to be connected in a straight line, the operator manually aligns the second connecting pipe 3 and the third connecting pipe 4. Then, the first mounting block 5 and the second mounting block 6 are wrapped around the connection. Finally, the fixing block 8 is manually rotated to apply pressure to the outer walls of the first mounting block 5 and the second mounting block 6. The above is the working process of the entire device. All contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0017] 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 high-hardness stainless steel pipe, comprising a first connecting pipe (1) and a rotating assembly, characterized in that: The outer wall of the first connecting pipe (1) is fitted with a rotating assembly, which includes a connecting pipe (201). The outer wall of the connecting pipe (201) is fitted with a rotating pipe (202). The inner wall of the rotating pipe (202) is fixedly connected with a limiting ring (203). The inner wall of the connecting pipe (201) is fixedly connected with a limiting block (204). The outer wall of the connecting pipe (201) is provided with a telescopic groove (205). The inner wall of the rotating pipe (202) is provided with a threaded groove (206) corresponding to the connecting pipe (201). The inner wall of the connecting pipe (201) is provided with a through hole (207) corresponding to the first connecting pipe (1). The end of the first connecting pipe (1) near the connecting pipe (201) is fixedly connected with a sealing ring (208).

2. The high-hardness stainless steel pipe according to claim 1, characterized in that: The inner wall of the connecting pipe (201) away from the first connecting pipe (1) is provided with a second connecting pipe (3), and the side of the first connecting pipe (1) away from the connecting pipe (201) is provided with a third connecting pipe (4).

3. A high-hardness stainless steel pipe according to claim 2, characterized in that: The third connecting pipe (4) has a first mounting block (5) at the top of its outer wall and a second mounting block (6) at the bottom of its outer wall.

4. A high-hardness stainless steel pipe according to claim 3, characterized in that: The first mounting block (5) and the second mounting block (6) are provided with threaded rods (7) at corresponding positions on their inner walls, and the second mounting block (6) is provided with a fixing block (8) at the bottom of its outer wall.

5. A high-hardness stainless steel pipe according to claim 4, characterized in that: The threaded rod (7) is threadedly connected to the fixing block (8), and the inner walls of the first mounting block (5) and the second mounting block (6) are provided with mounting grooves (9) corresponding to the third connecting pipe (4).

6. A high-hardness stainless steel pipe according to claim 5, characterized in that: The threaded rod (7) is slidably connected to the first mounting block (5) and the second mounting block (6) respectively, and the first connecting pipe (1) and the second connecting pipe (3) are slidably connected to the connecting pipe (201) respectively.

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