Impact-resistant stainless steel pipe

Abstract

The utility model discloses an anti-impact stainless steel pipe which comprises a pipe body and two branch pipes, the two branch pipes are arranged at the top of the pipe body and communicated with the pipe body, pipe covers are connected to the branch pipes in a threaded mode, pressing rods are arranged on the bottom faces of the pipe covers, rod barrels are connected to the pressing rods in a sliding mode, containing cavities are formed in the rod barrels, and the containing cavities are communicated with the pipe covers. A floating plate is arranged on the bottom face of the rod barrel, and a pressing plate is arranged at the bottom end of the pressing rod. When the pipe body of the impact-resistant stainless steel pipe conveys fluid, the floating plate can prevent the fluid from making contact with the rod barrel, when the water hammer phenomenon occurs in the pipe body, the pressure of the fluid in the pipe body is increased, the fluid can drive the floating plate to move upwards, the rod barrel moves upwards along with the floating plate and enables the pressing plate to compress the pressing spring, and then movement of the floating plate is gradually slowed down so that the floating plate can reach dynamic balance. The floating plate can be prevented from colliding with the pipe cover, pressure and impact force of fluid on the inner wall of the pipe body are relieved, deformation and fracture caused by excessive pressure on the pipe body are avoided, and the service life of the pipe body is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of stainless steel pipes, in particular to an impact-resistant stainless steel pipe. Background Art

[0002] Stainless steel is the abbreviation of stainless and acid-resistant steel. Steel that is resistant to corrosive media such as air, steam and water or has rust resistance is called stainless steel, and steel that is resistant to corrosion by chemical corrosive media is called acid-resistant steel. However, after the valve connected to the existing stainless steel pipe is urgently closed, the fluid in the front of the pipe stops flowing, while the fluid in the back of the pipe continues to flow forward and causes water hammer in the pipe. The impact force generated by the water hammer phenomenon directly acts on the inner wall of the pipe. Repeated water hammer phenomena can easily cause the inner wall of the pipe to deform and rupture, and affect the connection sealing between steel pipes. Therefore, it is necessary to design a new type of stainless steel pipe structure to solve the above problems. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides an impact-resistant stainless steel pipe. When the pipe body is conveying fluid, the float plate can prevent the fluid from contacting the rod barrel. When water hammer occurs in the pipe body, the fluid pressure in the pipe body increases, and the fluid can drive the float plate to move upward. The rod barrel moves upward with the float plate and causes the pressure plate to compress the compression spring, thereby gradually slowing down the movement of the float plate so that the float plate reaches dynamic balance, which can prevent the float plate from colliding with the pipe cover, and alleviate the pressure and impact force of the fluid on the inner wall of the pipe body to prevent the pipe body from being deformed and ruptured due to excessive pressure, thereby extending the service life of the pipe body.

[0004] A shock-resistant stainless steel pipe comprises a pipe body and two branch pipes, wherein the two branch pipes are arranged at the top of the pipe body and are connected to the pipe body, a pipe cover is threadedly connected to the branch pipe, a pressure rod is provided on the bottom surface of the pipe cover, and a rod barrel is slidably connected to the pressure rod, an accommodating cavity is provided in the rod barrel, and a floating plate is provided on the bottom surface of the rod barrel, a pressure plate is provided at the bottom end of the pressure rod, and a compression spring that resists the pressure plate is provided on the bottom surface of the accommodating cavity.

[0005] Preferably, the top surface of the tube cover is provided with an inverted U-shaped handle, the bottom surface of the tube cover is provided with a threaded protrusion, the pipe mouth position at the top of the inner wall of the branch pipe is provided with an internal thread, and the threaded protrusion of the tube cover is threadedly connected to the internal thread of the branch pipe.

[0006] Preferably, a sealing ring is provided on the side wall of the floating plate, and the floating plate abuts against the inner wall of the branch pipe through the sealing ring.

[0007] Preferably, a through hole is provided at the center of the top surface of the rod barrel, and the pressure rod is slidably connected to the through hole of the rod barrel and the pressure plate is disposed in the accommodating cavity.

[0008] Preferably, the outer diameter of the compression spring is equal to the inner diameter of the rod barrel, and the sum of the lengths of the compression rod and the rod barrel is less than the length of the branch pipe.

[0009] Preferably, the top surface of the rod barrel and the bottom surface of the threaded protrusion are both provided with permanent magnetic rings with the same magnetic properties, and the inner diameter of the permanent magnetic ring is larger than the diameter of the pressure rod.

[0010] The beneficial effects of the present invention are as follows: the impact-resistant stainless steel pipe cooperates with the pipe body and the branch pipe, so that when the pipe body is conveying fluid, the float plate can avoid contact between the fluid and the rod barrel, the float plate is installed on the pressure rod through the rod barrel, which can prevent the float plate from falling into the pipe body, and the compression spring is built into the rod barrel to avoid displacement when the compression spring is extended and retracted, and the rod barrel and the float plate can be disassembled and assembled as a whole with the pipe cover, which is convenient for disassembly and assembly. When water hammer occurs in the pipe body, the fluid pressure in the pipe body increases, and the fluid can drive the float plate to move upward, the rod barrel moves upward with the float plate and causes the pressure plate to compress the compression spring, thereby gradually slowing down the movement of the float plate so that the float plate reaches dynamic balance, which can prevent the float plate from colliding with the pipe cover, and relieve the pressure and impact force of the fluid on the inner wall of the pipe body to prevent the pipe body from being deformed and ruptured due to excessive pressure, thereby extending the service life of the pipe body. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Attachment Figure 1 This is a schematic diagram of the structure of the utility model;

[0012] Attachment Figure 2 This is a top view of the utility model;

[0013] Attachment Figure 3 This is a schematic diagram of the branch pipe structure in the utility model.

[0014] In the figure: 1 tube body, 2 branch tube, 3 tube cover, 4 pressure rod, 5 rod tube, 6 accommodating cavity, 7 floating plate, 8 pressure plate, 9 compression spring, 10 U-shaped handle, 11 threaded protrusion, 12 sealing ring, 13 permanent magnet ring. DETAILED DESCRIPTION

[0015] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so as to provide a clearer understanding of the technical concept to be protected by the present invention.

[0016] like Figures 1 to 3 As shown, an impact-resistant stainless steel pipe comprises a pipe body 1 and two branch pipes 2, the two branch pipes 2 are arranged at the top of the pipe body 1 and are connected to the pipe body 1, a pipe cover 3 is threadedly connected to the branch pipe 2, a pressure rod 4 is provided on the bottom surface of the pipe cover 3, and a rod barrel 5 is slidably connected to the pressure rod 4, an accommodating cavity 6 is provided in the rod barrel 5, and a floating plate 7 is provided on the bottom surface of the rod barrel 5, a pressure plate 8 is provided at the bottom end of the pressure rod 4, and a compression spring 9 is provided on the bottom surface of the accommodating cavity 6 to resist the pressure plate 8.

[0017] The working principle of the impact-resistant stainless steel pipe of the utility model is achieved through the cooperation between the pipe body 1 and the branch pipe 2. Figures 1 to 3 As shown, the branch pipe 2 is arranged at a position close to the end of the pipe body 1. When water hammer occurs in the pipe body 1, the fluid pressure in the pipe body 1 suddenly increases, and the fluid can enter the branch pipe 2 and drive the float plate 7 to move upward. The rod barrel 5 moves upward with the float plate 7 and causes the pressure plate 8 to compress the compression spring 9, thereby gradually slowing down the movement of the float plate 7 so that the float plate 7 can reach dynamic balance and release the fluid pressure in the pipe body 1, and avoid collision between the float plate 7 and the pipe cover 3. After the pipe body 1 is reopened, the fluid pressure in the pipe body 1 is reduced, and the fluid in the branch pipe 2 flows back to the pipe body 1 for transportation. The rod barrel 5 is reset by the compression spring 9 and its own gravity. Compared with traditional stainless steel pipes, this impact-resistant stainless steel pipe can relieve the pressure and impact force of the fluid on the inner wall of the pipe body 1, so as to prevent the pipe body 1 from being deformed and ruptured due to excessive pressure, thereby extending the service life of the pipe body 1.

[0018] Specifically, the top surface of the pipe cover 3 is provided with an inverted U-shaped handle 10, the bottom surface of the pipe cover 3 is provided with a threaded protrusion 11, the pipe opening position at the top of the inner wall of the branch pipe 2 is provided with an internal thread, and the threaded protrusion 11 of the pipe cover 3 is threadedly connected with the internal thread of the branch pipe 2, wherein the side wall of the floating plate 7 is provided with a sealing ring 12, and the floating plate 7 is abutted against the inner wall of the branch pipe 2 through the sealing ring 12, as shown in FIG. Figures 1 to 3 As shown, the staff can hold the pipe cover 3 by the U-shaped handle 10 and extend the float plate 7 into the branch pipe 2. The float plate 7 is abutted against the inner side of the branch pipe 2 through the sealing ring 12, so that the float plate 7 prevents the fluid from contacting the rod barrel 5 and the pressure rod 4. Then, the pipe cover 3 is rotated to connect the threaded protrusion 11 with the internal thread of the branch pipe 2, which is convenient for overall disassembly and assembly.

[0019] Furthermore, a through hole is provided at the center of the top surface of the rod barrel 5, and the pressure rod 4 is slidably connected to the through hole of the rod barrel 5, and the pressure plate 8 is disposed in the accommodating chamber 6, wherein the outer diameter of the compression spring 9 is equal to the inner diameter of the rod barrel 5, and the sum of the lengths of the pressure rod 4 and the rod barrel 5 is less than the length of the branch pipe 2. Furthermore, a permanent magnet ring 13 of the same magnetic property is provided on the top surface of the rod barrel 5 and the bottom surface of the threaded protrusion 11, and the inner diameter of the permanent magnet ring 13 is greater than the diameter of the pressure rod 4, as shown in FIG. Figures 1 to 3As shown, the pressure rod 4 moves along the through hole of the rod barrel 5, and the floating plate 7 is installed on the pressure rod 4 through the rod barrel 5, which can prevent the floating plate 7 from falling into the tube body 1. The compression spring 9 is built into the rod barrel 5 to prevent the position of the compression spring 9 from shifting when the compression spring 9 is extended and retracted, and has a guiding effect. When the rod barrel 5 moves upward, the two permanent magnet rings 13 have the same magnetic properties and can form a repulsive force. In this way, when the rod barrel 5 gradually approaches the threaded protrusion 11, the repulsive force of the two permanent magnet rings 13 is greater, and the compression spring 9 can cooperate with the compression spring 9 to slow down the movement of the floating plate 7 and the rod barrel 5, so that the floating plate 7 can reach dynamic balance faster and avoid the rod barrel 5 from colliding with the threaded protrusion 11.

[0020] The above are only specific embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An impact-resistant stainless steel pipe, characterized in that: It includes a tube body and two branch tubes, the two branch tubes are arranged on the top of the tube body and connected to the tube body, the branch tubes are threadedly connected with a tube cover, the bottom surface of the tube cover is provided with a pressure rod, and the pressure rod is slidably connected with a rod barrel, an accommodating cavity is provided in the rod barrel, and a floating plate is provided on the bottom surface of the rod barrel, the bottom end of the pressure rod is provided with a pressure plate, and the bottom surface of the accommodating cavity is provided with a compression spring that resists the pressure plate.

2. The impact-resistant stainless steel pipe according to claim 1, characterized in that: The top surface of the tube cover is provided with an inverted U-shaped handle, the bottom surface of the tube cover is provided with a threaded protrusion, the pipe mouth position at the top of the inner wall of the branch pipe is provided with an internal thread, and the threaded protrusion of the tube cover is threadedly connected to the internal thread of the branch pipe.

3. The impact-resistant stainless steel pipe according to claim 2, characterized in that: The side wall of the floating plate is provided with a sealing ring, and the floating plate is abutted against the inner wall of the branch pipe through the sealing ring.

4. The impact-resistant stainless steel pipe according to claim 3, characterized in that: A through hole is provided at the center of the top surface of the rod barrel, and the pressure rod is slidably connected to the through hole of the rod barrel so that the pressure plate is arranged in the accommodating cavity.

5. The impact-resistant stainless steel pipe according to claim 4, characterized in that: The outer diameter of the compression spring is equal to the inner diameter of the rod barrel, and the sum of the lengths of the compression rod and the rod barrel is less than the length of the branch pipe.

6. The impact-resistant stainless steel pipe according to claim 5, characterized in that: The top surface of the rod barrel and the bottom surface of the threaded protrusion are both provided with permanent magnetic rings with the same magnetic properties, and the inner diameter of the permanent magnetic ring is larger than the diameter of the pressure rod.

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