Corrugated pipe with high vibration damping performance

Abstract

The utility model relates to the technical field of corrugated pipes, and discloses a corrugated pipe with high vibration damping performance, which comprises a corrugated pipeline and a vibration damping device, the vibration damping device is fixedly connected in the corrugated pipeline, a guide cylinder is fixedly connected in the vibration damping device, a compensation component is fixedly connected on the outer side of the corrugated pipeline, and the guide cylinder is fixedly connected on the inner side of the compensation component. The damping device comprises a fixing ring, a sliding rod is fixedly connected to one side of the fixing ring, the sliding rod is distributed on the side edge of the fixing ring in a cross structure, the outer side of the sliding rod is movably sleeved with evenly-distributed damping rings, and one side of the outer side of the sliding rod is movably sleeved with a sealing ring. Sliding holes are formed in the front and back surfaces of the two sides and the bottom of the top of the sealing ring; liquid is blocked through the fixing ring and flows through the guide cylinder, the sealing ring prevents the liquid from flowing back into the position between the corrugated pipeline and the guide cylinder, and impurities can be prevented from being accumulated in the corrugated joints of the corrugated pipe.

Description

Technical Field

[0001] The utility model relates to the technical field of bellows, and more particularly to a bellows with high vibration damping performance. Background Art

[0002] A bellows is a pipe with a specific wave structure. Depending on the material, bellows can be divided into many types, including plastic bellows, metal bellows, HDPE double-wall bellows, etc. These bellows are widely used in various industries due to their unique structure and excellent performance. The appearance of the metal bellows is like a regular wave and is made of metal materials such as carbon steel and stainless steel. Metal bellows are widely used in aviation, aerospace, petroleum, chemical industry and other fields due to their excellent flexibility, fatigue resistance, high pressure bearing capacity, good temperature resistance and corrosion resistance. Metal bellows can be used as sensitive elements, shock absorbing elements, compensation elements, sealing elements, valve elements and pipeline connectors.

[0003] When used as a transmission pipe, the bellows is usually in direct contact with the transmitted material. However, due to the corrugated structure of the bellows, some of the transported material will remain in the wave gaps of the bellows, especially viscous materials are more likely to remain. The long-term storage of the residual material will affect the service life of the bellows. Secondly, during the operation of the bellows, when the natural frequency of the bellows is the same or similar to the external excitation frequency, bellows resonance will occur, which will affect the use of the bellows. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a bellows with high vibration damping performance to solve the problems existing in the above-mentioned background technology.

[0005] The utility model provides the following technical solutions: a high-vibration-damping bellows, comprising a bellows pipe and a vibration-damping device, wherein the interior of the bellows is fixedly connected to the vibration-damping device, the interior of the vibration-damping device is fixedly connected to a guide tube, the outside of the bellows is fixedly connected to a compensation component, the vibration-damping device comprises a fixed ring, one side of the fixed ring is fixedly connected to a sliding rod, and the sliding rods are distributed in a cross structure on the side of the fixed ring, the outside of the sliding rod is movably sleeved with evenly distributed vibration-damping rings, the vibration-damping rings are distributed in the internal corrugated sections of the corrugated pipe, and are close to the corrugated sections on the inner wall of the corrugated pipe, the outside of the sliding rod is movably sleeved with a sealing ring, and sliding holes are provided on the front and back sides and the top and bottom of the sealing ring, and the sliding rod and the sliding hole are adapted to each other.

[0006] Furthermore, the outer side of the fixing ring is fixedly connected to the inner side of the corrugated pipe, and the inner side of the fixing ring is fixedly connected to the outer side of the guide tube.

[0007] Furthermore, the outer side of the sealing ring is movably connected to the inner side of the corrugated pipe, and the inner side of the sealing ring is in contact with the outer side of the guide tube.

[0008] Furthermore, the compensation component includes a flange, the inner side of which is fixedly connected to the outer side of the corrugated pipe and is distributed on both sides of the outer side of the corrugated pipe, and mounting holes are provided on both sides of the flange.

[0009] Furthermore, a connecting plate is fixedly connected to the outer side of the flange. The connecting plates are distributed in an equilateral triangle shape on the outer side of the flange, and connecting holes are opened in the middle of both sides of the connecting plates.

[0010] Furthermore, a fixing bolt is movably connected to the side of the connecting plate, and a fixing nut is movably connected to one side of the fixing bolt. The fixing bolt is located inside the connecting hole of the connecting plate, and the connection between the bolt rod and the connecting hole is smooth. A thread is provided at the connection between the outer side of the bolt rod of the fixing bolt and the fixing nut.

[0011] Technical effects and advantages of this utility model:

[0012] 1. This utility model incorporates a vibration damping assembly. When the corrugated pipe is installed, one side of the retaining ring faces the water inlet. When liquid enters the corrugated pipe, it is blocked by the retaining ring and flows through the guide tube. A sealing ring on the other side prevents liquid from flowing back into the space between the corrugated pipe and the guide tube, thus preventing impurities from accumulating in the corrugated section of the corrugated pipe.

[0013] 2. This utility model incorporates a sealing ring. When the pipe connected to the corrugated pipe deflects vertically, horizontally, or laterally, the corrugations of the corrugated pipe are compressed and stretched. The corrugated pipe drives the sealing ring to slide and move on the sliding rod, reducing vibration while preventing impurities from entering the corrugations. Simultaneously, when the corrugations are compressed, they compress the vibration-damping ring, causing the frequency of the corrugated pipe to differ from the external excitation frequency, thus reducing the vibration generated during operation of the corrugated pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0015] Figure 2 It is a schematic diagram of the cross-sectional structure of the corrugated pipe and the structure of the vibration reduction device of the present invention.

[0016] Figure 3 This is a schematic structural diagram of the sealing ring of the present invention.

[0017] Figure 4 This is a schematic structural diagram of the compensation component of the present utility model.

[0018] The figures are marked as follows: 1. Corrugated pipe; 2. Vibration damping device; 201. Fixed ring; 202. Sliding rod; 203. Vibration damping ring; 204. Sealing ring; 205. Sliding hole; 3. Guide tube; 4. Compensating assembly; 401. Flange; 402. Mounting hole; 403. Connecting plate; 404. Fixing bolt; 405. Fixing nut. DETAILED DESCRIPTION

[0019] The following will clearly and completely describe the technical solutions of the present invention in conjunction with the drawings in the present invention. In addition, the forms of the various structures described in the following embodiments are merely examples. The high vibration-damping bellows involved in the present invention is not limited to the various structures described in the following embodiments. All other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0020] Reference Figures 1-4 The utility model provides a high vibration damping bellows, including a corrugated pipe 1 and a vibration damping device 2. The interior of the corrugated pipe 1 is fixedly connected to the vibration damping device 2, the interior of the vibration damping device 2 is fixedly connected to a guide tube 3, the outside of the corrugated pipe 1 is fixedly connected to a compensation component 4, the vibration damping device 2 includes a fixed ring 201, one side of the fixed ring 201 is fixedly connected to a sliding rod 202, and the sliding rod 202 is distributed in a cross structure on the side of the fixed ring 201, the outer side of the sliding rod 202 is movably sleeved with uniformly distributed vibration damping rings 203, and the vibration damping rings 203 are distributed inside the corrugated pipe 1. Inside the corrugated section, and close to the corrugated section on the inner wall of the corrugated pipe 1, a sealing ring 204 is movably sleeved on the outer side of the sliding rod 202, and sliding holes 205 are opened on the front and back sides and the top and bottom of the sealing ring 204. The sliding rod 202 and the sliding hole 205 are adapted to each other. When the corrugated pipe 1 is installed, one side of the fixed ring 201 faces the water inlet end. When the liquid enters the corrugated pipe 1, it will be blocked by the fixed ring 201 and flow through the guide tube 3. The other side is prevented by the fitting sealing ring 204 from flowing back into between the corrugated pipe 1 and the guide tube 3, which is beneficial to prevent impurities from accumulating in the corrugated section of the bellows.

[0021] In a preferred embodiment, the outer side of the fixing ring 201 is fixedly connected to the inner side of the corrugated pipe 1 , and the inner side of the fixing ring 201 is fixedly connected to the outer side of the guide tube 3 .

[0022] In a preferred embodiment, the outer side of the sealing ring 204 is movably connected to the inner side of the corrugated pipe 1, and the inner side of the sealing ring 204 fits the outer side of the guide tube 3. When the pipe connected to the corrugated pipe 1 deviates up, down, left, and right, the corrugations of the corrugated pipe 1 are compressed and stretched, and the corrugated pipe 1 drives the sealing ring 204 to slide and move on the sliding rod 202, reducing vibration while preventing impurities from entering the corrugations. At the same time, the corrugations will compress the vibration-damping ring 203 when compressed, so that the frequency of the corrugated pipe 1 is different from the external excitation frequency, which is beneficial to reduce the vibration generated during the operation of the corrugated pipe 1.

[0023] In a preferred embodiment, the compensation component 4 includes a flange 401 , the inner side of the flange 401 is fixedly connected to the outer side of the corrugated pipe 1 and is distributed on both sides of the outer side of the corrugated pipe 1 , and mounting holes 402 are opened on both sides of the flange 401 .

[0024] In a preferred embodiment, a connecting plate 403 is fixedly connected to the outer side of the flange 401 . The connecting plates 403 are distributed in an equilateral triangle shape on the outer side of the flange 401 , and connecting holes are opened in the middle of both sides of the connecting plates 403 .

[0025] In a preferred embodiment, the side of the connecting plate 403 is movably connected with a fixing bolt 404, and one side of the fixing bolt 404 is movably connected with a fixing nut 405. The fixing bolt 404 is located inside the connecting hole of the connecting plate 403, and the connection between the bolt rod and the connecting hole is smooth. The connection between the outer side of the bolt rod of the fixing bolt 404 and the fixing nut 405 is provided with a thread. The fixing bolt 404 and the fixing nut 405 cooperate with each other to connect the flanges 401 on both sides of the corrugated pipe 1. When the pipe connected to the corrugated pipe 1 is offset, the flange 401 on the corrugated pipe 1 moves, driving the corrugation to move. At the same time, the fixing bolt 404 moves in the connecting hole on the connecting plate 403, and the compensation component 4 constrains the corrugated pipe 1.

[0026] The working principle of the utility model is as follows: when the corrugated pipe 1 is installed, one side of the fixing ring 201 faces the water inlet end. When the liquid enters the corrugated pipe 1, it will be blocked by the fixing ring 201 and flow through the guide tube 3. The other side is prevented from flowing back into the space between the corrugated pipe 1 and the guide tube 3 by the sealing ring 204. This is beneficial to prevent impurities from accumulating in the corrugated section of the corrugated pipe. The flanges 401 on both sides of the corrugated pipe 1 are connected by the fixing bolts 404 and the fixing nuts 405. When the pipes connected to the corrugated pipe 1 deviate up, down, left, and right, the bellows The flange 401 on the pipe 1 moves, driving the corrugation to move, and at the same time, the fixing bolt 404 moves in the connecting hole on the connecting plate 403. The compensation component 4 constrains the corrugated pipe 1. When the corrugations of the corrugated pipe 1 are compressed and stretched, the corrugated pipe 1 drives the sealing ring 204 to slide and move on the sliding rod 202, reducing vibration while preventing impurities from entering the corrugations. At the same time, the corrugations will compress the vibration-damping ring 203 when compressed, so that the frequency of the corrugated pipe 1 is different from the external excitation frequency, which is beneficial to reducing the vibration generated by the corrugated pipe 1 during operation.

[0027] Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A bellows with high vibration damping performance, comprising a bellows pipe (1) and a vibration damping device (2), characterized in that: The interior of the corrugated pipe (1) is fixedly connected to a vibration damping device (2), the interior of the vibration damping device (2) is fixedly connected to a guide tube (3), the exterior of the corrugated pipe (1) is fixedly connected to a compensation component (4), the vibration damping device (2) comprises a fixed ring (201), one side of the fixed ring (201) is fixedly connected to a sliding rod (202), and the sliding rod (202) is distributed in a cross structure on the side of the fixed ring (201), the exterior of the sliding rod (202) is movably sleeved with uniformly distributed vibration damping rings (203), the vibration damping rings (203) are distributed in the internal corrugated section of the corrugated pipe (1) and are close to the corrugated section of the inner wall of the corrugated pipe (1), the exterior side of the sliding rod (202) is movably sleeved with a sealing ring (204), the front and back sides and the top and bottom of the sealing ring (204) are all provided with sliding holes (205), and the sliding rod (202) and the sliding hole (205) are adapted to each other.

2. The high vibration damping bellows according to claim 1, characterized in that: The outer side of the fixing ring (201) is fixedly connected to the inner side of the corrugated pipe (1), and the inner side of the fixing ring (201) is fixedly connected to the outer side of the guide tube (3).

3. The high vibration damping bellows according to claim 2, characterized in that: The outer side of the sealing ring (204) is movably connected to the inner side of the corrugated pipe (1), and the inner side of the sealing ring (204) is in contact with the outer side of the guide tube (3).

4. The high vibration damping bellows according to claim 1, characterized in that: The compensation component (4) comprises a flange (401), the inner side of the flange (401) being fixedly connected to the outer side of the corrugated pipe (1) and distributed on both sides of the outer side of the corrugated pipe (1), and mounting holes (402) being provided on both sides of the flange (401).

5. The high vibration damping bellows according to claim 4, characterized in that: A connecting plate (403) is fixedly connected to the outer side of the flange (401), and the connecting plates (403) are distributed in an equilateral triangle on the outer side of the flange (401), and connecting holes are opened in the middle of both sides of the connecting plates (403).

6. The high vibration damping bellows according to claim 5, characterized in that: The side of the connecting plate (403) is movably connected to a fixing bolt (404), and one side of the fixing bolt (404) is movably connected to a fixing nut (405). The fixing bolt (404) is located inside the connecting hole of the connecting plate (403), and the connection between the bolt rod and the connecting hole is smooth. The connection between the outer side of the bolt rod of the fixing bolt (404) and the fixing nut (405) is provided with a thread.

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