Stainless steel pipe with protective structure

Abstract

The utility model relates to the technical field of steel pipes, and discloses a stainless steel pipe with a protection structure, the stainless steel pipe comprises a protection pipe and an inner pipe arranged in the protection pipe, the outer surface of the inner pipe is provided with a spiral sliding strip, the protection pipe is internally provided with a spiral sliding groove, and the spiral sliding groove is provided with a sliding strip groove corresponding to the spiral sliding strip. A fixing flange is arranged on the bottom face of the inner pipe, connecting flanges are arranged at the two ends of the protection pipe, and a fixing groove corresponding to the fixing flange is formed in the connecting flange on the bottom face. The protection pipe is arranged on the outer layer of the inner pipe needing to be protected, the inner pipe can be isolated and protected, the position relation of the inner pipe and the protection pipe can be fixed through the spiral sliding grooves and the spiral sliding strips between the inner pipe and the protection pipe, and meanwhile the anti-pressure capacity is improved through the gaps between the spiral sliding grooves in the face of external pressure; and a good protection effect is achieved on the inner pipe.

Description

Technical Field

[0001] The utility model relates to the technical field of steel pipes, in particular to a stainless steel pipe with a protection structure. Background Technique

[0002] A stainless steel pipe is a pipe mainly made of stainless steel, with excellent corrosion resistance and other physical and chemical properties. Stainless steel pipes are mainly divided into two categories: seamless steel pipes and welded steel pipes. Seamless steel pipes are made through processes such as hot rolling or cold rolling and have no welds; while welded steel pipes are formed by welding steel plates or steel strips and have welds. In addition, according to different cross-sectional shapes, stainless steel pipes can also be divided into various shapes such as round pipes, square pipes, and rectangular pipes.

[0003] At present, existing stainless steel pipes are mostly used outdoors. The stainless steel pipes will be exposed to air and rain, and are corroded by rain and sand, and may also be affected by external forces such as collision and extrusion. In severe cases, the stainless steel pipes will be damaged, causing unnecessary losses. Content of the Utility Model

[0004] Aiming at the deficiencies of the prior art, the utility model provides a stainless steel pipe with a protection structure to avoid damage to the stainless steel pipe caused by external pressure.

[0005] To achieve the above object, the utility model provides the following technical solution: A stainless steel pipe with a protection structure, the stainless steel pipe includes a protection pipe and an inner pipe arranged inside the protection pipe. A spiral slide bar is arranged on the outer surface of the inner pipe. A spiral chute is arranged inside the protection pipe, and a slide bar groove corresponding to the spiral slide bar is opened in the spiral chute. A fixed flange is arranged on the bottom surface of the inner pipe, and connection flanges are arranged at both ends of the protection pipe. A fixed groove corresponding to the fixed flange is opened in the connection flange on the bottom surface.

[0006] Further, a connection thread groove is opened inside the bottom end of the inner pipe, and a connection thread corresponding to the connection thread groove is opened on the outer surface of the top end of the inner pipe.

[0007] Further, a bottom surface sealing groove is opened on the bottom surface of the inner pipe, and a first sealing strip is arranged inside the bottom surface sealing groove. A thread sealing groove is opened at the bottom surface of the connection thread of the inner pipe, and a second sealing strip is arranged inside the thread sealing groove.

[0008] Further, a steel pipe connection hole is opened in the connection ring, and adjacent connection rings are connected by connection bolts.

[0009] Furthermore, the stainless steel pipe is connected up and down through a connecting flange, and a steel pipe fixing piece is arranged between the two connecting flanges. The steel pipe fixing piece includes a fixing block and a steel pipe fixing bolt. Both ends of the fixing block are provided with fixing hole corresponding to the steel pipe fixing bolt. The fixing block is provided with annular grooves corresponding to the two fitted connecting flanges, and the fixing block is provided with fixing connection holes corresponding to the steel pipe connection holes.

[0010] Furthermore, removable steel pipe protective covers are provided at both ends of the inner tube, and the steel pipe protective covers include a bottom protective cover and a top protective cover. The outer surface of the bottom protective cover is provided with a protective cover connecting thread corresponding to the connecting thread groove, and the inside of the top protective cover is provided with a protective cover connecting thread groove corresponding to the connecting thread. Both the bottom protective cover and the top protective cover are provided with protective cover connecting holes corresponding to the steel pipe connecting holes.

[0011] Furthermore, the inner surface of the inner tube is provided with an anti-corrosion coating, and the outer surface of the outer tube is provided with an anti-corrosion coating.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] 1. By arranging a protective tube on the outer layer of the inner tube that needs protection, the inner tube can be isolated and protected. The spiral groove and spiral slide bar between the inner tube and the protective tube can fix the positional relationship between the two. At the same time, when facing external pressure, the gap between the spiral grooves can increase the pressure resistance, which plays a good protective role for the inner tube.

[0014] 2. By setting steel pipe protection covers at both ends of the inner pipe, the two ends of the steel pipe can be sealed when necessary to prevent the stainless steel pipe from being exposed to the air for a long time, which will affect the service life of the stainless steel pipe. At the same time, the inner pipe can be fixed in the protection pipe by using the threads and thread grooves on the steel pipe protection cover and the inner pipe to prevent the inner pipe from sliding at the head and tail ends. The steel pipe protection cover can also be disassembled and installed to facilitate protection by the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the three-dimensional structure of the inner tube of the utility model after being cut open;

[0017] Figure 3 This is a schematic diagram of the three-dimensional structure of the protective tube of the utility model after being cut open;

[0018] Figure 4 This is a three-dimensional structural schematic diagram of the steel pipe protection cover of the utility model;

[0019] Figure 5This is a three-dimensional structural schematic diagram of the steel pipe fixing component of the present utility model.

[0020] In the figure: 1. Protection pipe; 101. Spiral chute; 102. Slide bar groove; 103. Connecting flange; 104. Fixing groove; 105. Steel pipe connection hole; 106. Connecting bolt; 2. Inner pipe; 201. Spiral slide bar; 202. Fixing flange; 203. Connecting thread groove; 204. Connecting thread; 205. Bottom surface sealing groove; 206. Sealing strip 1; 207. Thread sealing groove; 208. Sealing strip 2; 3. Steel pipe fixing part; 301. Fixing block; 302. Steel pipe fixing bolt; 303. Fixing part fixing hole; 304. Annular groove; 305. Fixing part connection hole; 4. Steel pipe protection cover; 401. Bottom surface protection cover; 402. Top surface protection cover; 403. Protection cover thread; 404. Protection cover thread groove; 405. Protection cover connection hole. Specific implementation mode

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0022] As Figures 1 to 5 shown, a stainless steel pipe with a protection structure, the stainless steel pipe includes a protection pipe 1 and an inner pipe 2 arranged inside the protection pipe 1. A spiral slide bar 201 is arranged on the outer surface of the inner pipe 2, a spiral chute 101 is arranged inside the protection pipe 1, and a slide bar groove 102 corresponding to the spiral slide bar 201 is opened in the spiral chute 101. A fixing flange 202 is arranged on the bottom surface of the inner pipe 2, connecting flanges 103 are arranged at both ends of the protection pipe 1, and a fixing groove 104 corresponding to the fixing flange 202 is opened in the connecting flange 103 on the bottom surface.

[0023] The main improvement point of the present utility model is to prevent the stainless steel pipe from being damaged by external pressure, as Figures 1 to 5As shown in the figure, the stainless steel pipe in the present utility model is divided into a protection pipe 1 and an inner pipe 2. The cooperation between the spiral chute 101 and the spiral slide bar 201 between the protection pipe 1 and the inner pipe 2 can fix the positional relationship between the two. At the same time, when facing external pressure, the gap between the spiral chutes 201 is used to increase the compressive capacity, which plays a good protective role for the inner pipe. The fixed flange 202 at the bottom surface of the inner pipe 2 fits with the fixed groove 104. At this time, the two stainless steel pipes are connected through the steel pipe connection holes 105 on the connecting flange 103, so as to fix the inner pipe 2 inside the stainless steel pipe. When facing the head end and the tail end, the position of the inner pipe 2 can be fixed through the steel pipe protective cover 4, realizing the fixation and protection of the inner pipe 2. When fixing the stainless steel pipe at the required position, it is fixed through the steel pipe fixing member 3. The steel pipe fixing member 3 is connected to the connecting flange 103 through the steel pipe fixing bolt 302, and the stainless steel pipe can be fixed on a flat position such as the ground or the wall surface.

[0024] As Figure 2 shown, a connection thread groove 203 is provided inside the bottom end of the inner pipe 2, and a connection thread 204 corresponding to the connection thread groove 203 is provided on the outer surface of the top end of the inner pipe 2.

[0025] Specifically, by providing corresponding threads and thread grooves at both ends of the inner pipe 2, when the stainless steel pipes are connected to each other, the relative fixation of the positions of the protection pipe 1 and the inner pipe 2 can be utilized, and by rotating the protection pipe 1, the inner pipe 2 can be driven to rotate and fix, making the connection between the inner pipes 2 firm and preventing phenomena such as leakage during use, thereby improving the stability of the stainless steel pipe.

[0026] As Figure 2 shown, a bottom surface sealing groove 205 is provided on the bottom surface of the inner pipe 2, a first sealing strip 206 is provided in the bottom surface sealing groove 205, a thread sealing groove 207 is provided at the bottom surface of the connection thread 204 of the inner pipe 2, and a second sealing strip 208 is provided in the thread sealing groove 207.

[0027] Specifically, by providing sealing strips at the connection of the stainless steel pipes, the sealing performance after the connection of the stainless steel pipes can be improved, preventing external substances such as rainwater and sand from entering the connection of the stainless steel pipes, thereby increasing the service life of the stainless steel pipes. At the same time, when the inner pipe 2 leaks, relevant substances are prevented from leaking out, reducing the impact on the surrounding environment.

[0028] As Figure 3 shown, the connecting flange 103 is provided with steel pipe connection holes 105, and adjacent two connecting flanges 103 are connected through connecting bolts 106.

[0029] As Figure 3 and Figure 5As shown in the figure, stainless steel pipes are connected up and down through connecting flange plates 103. A steel pipe fixing member 3 is provided between the two connecting flange plates 103. The steel pipe fixing member 3 includes a fixing block 301 and steel pipe fixing bolts 302. Fixing holes 303 corresponding to the steel pipe fixing bolts 302 are provided at both ends of the fixing block 301. An annular groove 304 corresponding to the two fitting connecting flange plates 103 is provided on the fixing block 301. A fixing member connecting hole 305 corresponding to the steel pipe connecting hole 105 is provided on the fixing block 301.

[0030] Specifically, when it is necessary to fix the stainless steel pipe on a flat terrain such as the ground or the wall, the stainless steel pipe can be fixed through the steel pipe fixing member 3. The steel pipe fixing member 3 is connected to the ground through the steel pipe fixing bolts 302. The steel pipe fixing member 3 can be fitted with the two fitting connecting flange plates 103 by providing the annular groove 304, and is fixed through the connection between the fixing member connecting hole 305 and the connecting flange plate 103, so that the stainless steel pipe can be fixed on the ground.

[0031] As Figure 1 and Figure 4 As shown in the figure, detachable steel pipe protective covers 4 are provided at both ends of the inner pipe 2. The steel pipe protective cover 4 includes a bottom protective cover 401 and a top protective cover 402. A protective cover thread 403 corresponding to the connecting thread groove 203 is provided on the outer surface of the bottom protective cover 401. A protective cover thread groove 404 corresponding to the connecting thread 204 is provided inside the top protective cover 402. Protective cover connecting holes 405 corresponding to the steel pipe connecting hole 105 are provided on both the bottom protective cover 401 and the top protective cover 402.

[0032] Specifically, by providing steel pipe protective covers 4 at both ends of the inner pipe, the two ends of the steel pipe can be sealed when necessary, preventing the stainless steel pipe from being exposed to the air for a long time and affecting the service life of the stainless steel pipe. At the same time, by using the corresponding threads and thread grooves on the steel pipe protective cover 5 and the inner pipe 2, the position of the inner pipe 2 can be fixed through the steel pipe protective cover 4, and the steel pipe protective cover can also be disassembled and installed, facilitating the protection by the staff.

[0033] As Figure 2 and Figure 3 As shown in the figure, an anti-corrosion coating is provided on the inner surface of the inner pipe 2, and an anti-corrosion coating is provided on the outer surface of the protective pipe 1.

[0034] Specifically, although the stainless steel pipe has the characteristics of corrosion resistance and high temperature resistance, we can still set anti-corrosion coatings at the required parts to extend the service life of the stainless steel pipe.

[0035] 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 perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A stainless steel pipe with a protective structure, characterized in that, The stainless steel pipe includes a protective pipe (1) and an inner pipe (2) disposed inside the protective pipe (1). A spiral slide bar (201) is provided on the outer surface of the inner pipe (2), and a spiral chute (101) is provided inside the protective pipe (1). A slide bar groove (102) corresponding to the spiral slide bar (201) is formed in the spiral chute (101). A fixed flange (202) is provided on the bottom surface of the inner pipe (2), and connection flanges (103) are provided at both ends of the protective pipe (1). A fixing groove (104) corresponding to the fixed flange (202) is formed in the connection flange (103) on the bottom surface.

2. The stainless steel pipe with a protection structure according to claim 1, characterized in that, A connection thread groove (203) is formed inside the bottom end of the inner pipe (2), and a connection thread (204) corresponding to the connection thread groove (203) is formed on the outer surface of the top end of the inner pipe (2).

3. A stainless steel pipe with a protective structure according to claim 1, characterized in that, A bottom surface sealing groove (205) is formed on the bottom surface of the fixed flange (202), and a first sealing strip (206) is provided in the bottom surface sealing groove (205). A thread sealing groove (207) is formed at the bottom surface of the connection thread (204) of the inner pipe (2), and a second sealing strip (208) is provided in the thread sealing groove (207).

4. A stainless steel pipe with a protective structure according to claim 2, characterized in that, The connection flange (103) is provided with a steel pipe connection hole (105), and adjacent two connection flanges (103) are connected by a connection bolt (106).

5. A stainless steel pipe with a protective structure according to claim 4, characterized in that, The stainless steel pipes are connected up and down through the connection flanges (103). A steel pipe fixing member (3) is provided between two connection flanges (103). The steel pipe fixing member (3) includes a fixing block (301) and a steel pipe fixing bolt (302). Fixing holes (303) corresponding to the steel pipe fixing bolt (302) are formed at both ends of the fixing block (301). An annular groove (304) corresponding to two fitted connection flanges (103) is formed in the fixing block (301). A fixing member connection hole (305) corresponding to the steel pipe connection hole (105) is formed in the fixing block (301).

6. The stainless steel pipe with a protection structure according to claim 5, characterized in that, Detachable steel pipe protective covers (4) are provided at both ends of the inner pipe (2). The steel pipe protective cover (4) includes a bottom surface protective cover (401) and a top surface protective cover (402). A protective cover thread (403) corresponding to the connection thread groove (203) is provided on the outer surface of the bottom surface protective cover (401). A protective cover thread groove (404) corresponding to the connection thread (204) is formed inside the top surface protective cover (402). Both the bottom surface protective cover (401) and the top surface protective cover (402) are provided with protective cover connection holes (405) corresponding to the steel pipe connection hole (105).

7. A stainless steel pipe with a protective structure according to claim 1, characterized in that, An anti-corrosion coating is provided on the inner surface of the inner pipe (2), and an anti-corrosion coating is provided on the outer surface of the protective pipe (1).

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