Flexible pipe sealing joint and sealing method thereof

Abstract

The invention relates to the technical field of flexible pipe sealing joints, and discloses a flexible pipe sealing joint and a sealing method thereof.The flexible pipe sealing joint comprises a nylon protective sleeve, a corrugated hose is fixedly connected to the inner wall of the nylon protective sleeve, and a connecting part is arranged at the end of the corrugated hose; the connecting part comprises an end pipe, the end of the end pipe is fixedly connected with the end of the corrugated hose, the surface of the end pipe is fixedly connected with a protective cylinder frame, and the surface of the protective cylinder frame is fixedly connected with an internal thread frame. The nylon protective sleeve is arranged on the surface of the corrugated hose to protect the corrugated hose, the corrugated hose is prevented from being scraped by sharp articles during use, the nylon protective sleeve can also prevent the corrugated hose from aging due to exposure to the sun, the end pipe is arranged at the end of the corrugated hose, butt joint with other pipelines is facilitated through the end pipe, and the service life of the corrugated hose is prolonged. A protection cylinder frame is arranged on the surface of the end pipe, the inner wall of the protection cylinder frame makes contact with the surface of the nylon protection sleeve and extends outwards by a certain distance, and the connection position of the corrugated hose and the end pipe is protected through the protection cylinder frame.

Description

Technical Field

[0001] The invention relates to the technical field of flexible pipe sealing joints, in particular to a flexible pipe sealing joint and a sealing method thereof. Background Art

[0002] Flexible pipe sealing joints are soft connectors used for pipe connections. They are primarily used to absorb vibration, displacement, and temperature changes in the piping system, thereby maintaining stable operation. They typically consist of metal flanges, rubber sealing layers, and connecting bolts. Flexible pipe sealing joints are widely used in various fluid conveying systems, such as water supply, drainage, fire protection, HVAC, and chemical industries. Currently, flexible pipe sealing joints are usually fixed with bolts. Gaskets are usually installed at the connection between the bolts and the water pipes to act as a seal. After installation, the gaskets are in a state of compression and exposed to the outside world for a long time, which can easily cause the gaskets to harden and crack, thereby affecting the sealing performance of the flexible pipe sealing joints. Summary of the Invention

[0003] The object of the present invention is to provide a flexible pipe sealing joint and a sealing method thereof to solve the problems raised in the above background technology.

[0004] To solve the above technical problems, the present invention is achieved through the following technical solutions: The present invention relates to a flexible pipe sealing joint and a sealing method thereof, comprising a nylon protective sleeve, the inner wall of which is fixedly connected to a corrugated hose, and the end of the corrugated hose is provided with a connecting component; The connecting component includes an end pipe, the end of the end pipe is fixedly connected to the end of the corrugated hose, the surface of the end pipe is fixedly connected to a protective cylindrical frame, the surface of the protective cylindrical frame is fixedly connected to an internal threaded frame, the inner wall of the internal threaded frame is threadedly connected to a threaded pipe, the inner wall of the threaded pipe is plugged with a sealing gasket, there are two threaded pipes, and the ends of the two threaded pipes away from each other are respectively provided with an external threaded pipe and an internal threaded pipe, a sealing component is provided inside the end pipe, and a pressure component is provided inside the sealing component.

[0005] Furthermore, the end of the nylon protective sleeve is fixedly connected to the surface of the end tube, and the end of the nylon protective sleeve is located inside the protective cylinder frame.

[0006] Furthermore, there are two end pipes, which are symmetrically arranged with the corrugated hose as the center, and the protective cylindrical frame extends from one end close to the corrugated hose to the outer end of the end pipe.

[0007] Furthermore, the end of the internal threaded frame away from the protective cylindrical frame extends to the outer end of the end tube, the end of the sealing gasket away from the threaded tube contacts the end of the end tube, and the surface of the external threaded tube is adapted to the inner wall of the internal threaded tube.

[0008] Furthermore, the sealing component includes a fixing ring, the surface of the fixing ring is fixedly connected to the inner wall of the end tube, the inner wall of the fixing ring is fixedly connected to a positioning tube, and the surface of the positioning tube is sleeved with a cylindrical sealing gasket.

[0009] Furthermore, the end of the fixing ring extends to the outer end of the end tube, the end of the positioning tube extends to the outer end of the fixing ring, the end of the cylindrical sealing gasket away from the positioning tube extends to the inside of the external threaded tube, and the surface of the cylindrical sealing gasket contacts the inner wall of the sealing gasket.

[0010] Furthermore, the pressure component includes a cross, the end of the cross is fixedly connected to the inner wall of the positioning tube, the surface of the cross is fixedly connected to a sliding rod, the surface of the sliding rod is slidably connected to a movable disk, the surface of the movable disk is fixedly connected to a force plate, the surface of the movable disk is hinged to an extrusion plate, the end of the extrusion plate away from the movable disk is hinged to a support frame, the inner wall of the support frame is fixedly connected to a limiting plate, and the end of the limiting plate away from the support frame is fixedly connected to an arc pressure plate.

[0011] Furthermore, the number of the movable disks is four, and the four movable disks are arranged into two groups, and each group has two movable disks, and the two movable disks are fixedly connected by a connecting rod.

[0012] Furthermore, the number of the arc pressure plates is set to eight, and the eight arc pressure plates are arranged into two groups, and the number of each group is set to four, and the four arc pressure plates are located inside the cylindrical sealing gasket and contact the inner wall of the cylindrical sealing gasket.

[0013] Furthermore, the two groups of movable disks are symmetrically arranged with the corrugated hose as the center, and the end of the sliding rod away from the cross extends to the interior of the cylindrical sealing gasket.

[0014] A sealing method for a flexible pipe sealing joint comprises the following steps: S1: An end pipe is provided at the end of the corrugated hose to facilitate connection with other pipes through the end pipe. A protective cylindrical frame is provided on the surface of the end pipe. The inner wall of the protective cylindrical frame contacts the surface of the nylon protective sleeve and extends outward for a distance. The protective cylindrical frame is used to protect the connection between the corrugated hose and the end pipe; S2: An internal threaded frame is provided on the surface of the end pipe, and the external threaded pipe and the internal threaded pipe are threadedly connected to the inside of the internal threaded frame through the threaded pipe, which facilitates the connection of the end pipe with other pipes through the external threaded pipe or the internal threaded pipe, thereby improving the convenience of the corrugated hose during installation; S3: A fixing ring is provided inside the end tube to fix the positioning tube, a cylindrical gasket is sleeved on the surface of the positioning tube, and the cylindrical gasket is used to seal the connection between the end tube and the threaded tube; S4: The movable disk pushes the extrusion plate to move when it moves, and the connection between the support frame and the limit plate will limit the end of the extrusion plate. When the movable disk moves, it will push the extrusion plate to expand close to one end of the support frame. When the extrusion plate expands, it squeezes the arc pressure plate through the support frame.

[0015] The present invention has the following beneficial effects: The present invention provides a nylon protective sleeve on the surface of the corrugated hose to protect it and avoid it being scratched by sharp objects during use. The nylon protective sleeve can also prevent the corrugated hose from being exposed to the sun and aging. An end pipe is provided at the end of the corrugated hose, which is convenient for docking with other pipes through the end pipe. A protective cylindrical frame is provided on the surface of the end pipe. The inner wall of the protective cylindrical frame contacts the surface of the nylon protective sleeve and extends outward for a distance. The protective cylindrical frame is used to protect the connection between the corrugated hose and the end pipe to avoid the connection between the corrugated hose and the end pipe from breaking due to twisting. An internal threaded frame is provided on the surface of the end pipe. The external threaded pipe and the internal threaded pipe are threadedly connected to the inside of the internal threaded frame through the threaded pipe, which facilitates the connection of the end pipe with other pipes through the external threaded pipe or the internal threaded pipe, thereby improving the convenience of installation of the corrugated hose and avoiding the situation where the pipes with different thread positions cannot be docked. A sealing gasket is provided inside the threaded pipe to enhance the sealing between the threaded pipe and the end pipe.

[0016] The present invention provides a fixing ring inside the end tube to fix the positioning tube, and a cylindrical sealing gasket is sleeved on the surface of the positioning tube. The cylindrical sealing gasket is used to seal the connection between the end tube and the threaded tube, thereby improving the sealing between the threaded tube and the end tube. When the cylindrical sealing gasket is pulled to slide toward the outer end of the positioning tube, the end of the cylindrical sealing gasket away from the positioning tube will extend to the outer end of the external threaded tube or the internal threaded tube. The connection between the external threaded tube or the internal threaded tube and other pipelines is sealed by the cylindrical sealing gasket, thereby further improving the sealing of the corrugated hose after connection.

[0017] When the external threaded pipe of the present invention is connected to other pipes, the water flow inside the pipe enters the end pipe and the corrugated hose through the external threaded pipe. When the water flow flows, the water will squeeze the movable plate through the force-bearing plate. After the movable plate is subjected to pressure, it will slide on the surface of the slide rod. When the movable plate moves, it pushes the extrusion plate to move, and the connection between the support frame and the limit plate will limit the end of the extrusion plate. When the movable plate moves, it will push the extrusion plate to expand close to one end of the support frame. When the extrusion plate expands, it will squeeze the arc pressure plate through the support frame. At this time, the arc pressure plate will squeeze the inner wall of the cylindrical sealing gasket, so that the cylindrical sealing gasket can fit more tightly at the connection of the end pipe and other parts, thereby improving the sealing of the connection of the end pipe and other parts. The greater the flow rate of the water flow, the greater the extrusion on the force-bearing plate, so that the cylindrical sealing gasket can improve the sealing according to the flow rate of the water flow.

[0018] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic cross-sectional view of the corrugated hose of the present invention; Figure 3 This is a schematic diagram of the overall structure of the connecting component of the present invention; Figure 4 This is another structural schematic diagram of the connecting component of the present invention; Figure 5 This is a schematic diagram of the overall structure of the sealing component of the present invention; Figure 6 This is a schematic diagram of the overall structure of the pressure component of the present invention; Figure 7 This is another structural schematic diagram of the pressure component of the present invention; Figure 8 It is a schematic diagram of the process structure of the present invention.

[0021] In the accompanying drawings, the components represented by the reference numerals are as follows: In the figure: 1. Nylon protective cover; 2. Corrugated hose; 3. Connecting part; 4. Sealing part; 5. Pressure part; 10. Protective cylinder frame; 11. Internal thread frame; 12. Threaded pipe; 13. External thread pipe; 14. Sealing gasket; 15. End pipe; 16. Internal thread pipe; 20. Fixing ring; 21. Positioning pipe; 22. Cylinder sealing gasket; 30. Cross; 31. Sliding rod; 32. Arc pressure plate; 33. Limiting plate; 34. Extrusion plate; 35. Linking rod; 36. Force plate; 37. Moving disk; 38. Support frame. DETAILED DESCRIPTION

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] See also Figures 1-8 As shown, the present invention is a flexible pipe sealing joint and a sealing method thereof, comprising a nylon protective sleeve 1, a corrugated hose 2 is fixedly connected to the inner wall of the nylon protective sleeve 1, and a connecting component 3 is provided at the end of the corrugated hose 2; The connecting component 3 includes an end tube 15, the end of the end tube 15 is fixedly connected to the end of the corrugated hose 2, the surface of the end tube 15 is fixedly connected to a protective cylindrical frame 10, the surface of the protective cylindrical frame 10 is fixedly connected to an internal threaded frame 11, the inner wall of the internal threaded frame 11 is threadedly connected to a threaded tube 12, the inner wall of the threaded tube 12 is plugged with a sealing gasket 14, the number of threaded tubes 12 is provided with two, and the ends of the two threaded tubes 12 away from each other are respectively provided with an external threaded tube 13 and an internal threaded tube 16, the interior of the end tube 15 is provided with a sealing component 4, and the interior of the sealing component 4 is provided with a pressure The force component 5 is provided with a nylon protective cover 1 on the surface of the corrugated hose 2 to protect it from being scratched by sharp objects during use. The nylon protective cover 1 can also prevent the corrugated hose 2 from being exposed to the sun and aging. An end pipe 15 is provided at the end of the corrugated hose 2 to facilitate docking with other pipes through the end pipe 15. A protective cylinder frame 10 is provided on the surface of the end pipe 15. The inner wall of the protective cylinder frame 10 is in contact with the surface of the nylon protective cover 1 and extends outward for a distance. The protective cylinder frame 10 is used to protect the connection between the corrugated hose 2 and the end pipe 15.

[0024] The end of the nylon protective sleeve 1 is fixedly connected to the surface of the end tube 15 , and the end of the nylon protective sleeve 1 is located inside the protective cylinder frame 10 .

[0025] There are two end pipes 15, which are symmetrically arranged with the corrugated hose 2 as the center. The protective cylindrical frame 10 extends to the outer end of the end pipe 15 close to one end of the corrugated hose 2. An internal threaded frame 11 is provided on the surface of the end pipe 15. The external threaded pipe 13 and the internal threaded pipe 16 are threadedly connected to the inside of the internal threaded frame 11 through the threaded pipe 12, which facilitates the connection of the end pipe 15 with other pipes through the external threaded pipe 13 or the internal threaded pipe 16.

[0026] The end of the internal threaded frame 11 away from the protective cylindrical frame 10 extends to the outer end of the end tube 15, the end of the sealing gasket 14 away from the threaded tube 12 contacts the end of the end tube 15, and the surface of the external threaded tube 13 is adapted to the inner wall of the internal threaded tube 16.

[0027] The sealing component 4 includes a fixing ring 20, the surface of the fixing ring 20 is fixedly connected to the inner wall of the end tube 15, the inner wall of the fixing ring 20 is fixedly connected to a positioning tube 21, the surface of the positioning tube 21 is sleeved with a cylindrical sealing gasket 22, a fixing ring 20 is provided inside the end tube 15 to fix the positioning tube 21, a cylindrical sealing gasket 22 is sleeved on the surface of the positioning tube 21, and the cylindrical sealing gasket 22 is used to seal the connection between the end tube 15 and the threaded tube 12.

[0028] The end of the fixing ring 20 extends to the outer end of the end tube 15, the end of the positioning tube 21 extends to the outer end of the fixing ring 20, and the end of the cylindrical sealing gasket 22 away from the positioning tube 21 extends to the inside of the external threaded tube 13. The surface of the cylindrical sealing gasket 22 contacts the inner wall of the sealing gasket 14. When the cylindrical sealing gasket 22 is pulled to slide toward the outer end of the positioning tube 21, the end of the cylindrical sealing gasket 22 away from the positioning tube 21 will extend to the outer end of the external threaded tube 13 or the internal threaded tube 16, and the connection between the external threaded tube 13 or the internal threaded tube 16 and other pipes is sealed by the cylindrical sealing gasket 22.

[0029] The cam 35 is fixedly mounted on the support frame 38 so as to prevent the cam 35 from sliding onto the support frame 38. The cam 35 is fixedly mounted on the support frame 38 so as to prevent the cam 35 from sliding onto the support frame 38.

[0030] There are four movable disks 37 , which are arranged into two groups, with each group comprising two disks. The two movable disks 37 are fixedly connected via a connecting rod 35 .

[0031] There are eight arc pressure plates 32, and the eight arc pressure plates 32 are arranged in two groups, and the number of each group is four. The four arc pressure plates 32 are located inside the cylindrical sealing gasket 22 and contact the inner wall of the cylindrical sealing gasket 22. When the movable disk 37 moves, it pushes the extrusion plate 34 to expand close to one end of the support frame 38. When the extrusion plate 34 expands, it squeezes the arc pressure plate 32 through the support frame 38. At this time, the arc pressure plate 32 squeezes the inner wall of the cylindrical sealing gasket 22, so that the cylindrical sealing gasket 22 can fit more closely at the connection of parts such as the end pipe 15, thereby improving the sealing of the connection of the end pipe 15 and the like.

[0032] The two sets of movable plates 37 are symmetrically arranged with the corrugated hose 2 as the center, and the end of the sliding rod 31 away from the cross 30 extends to the interior of the cylindrical sealing gasket 22.

[0033] A sealing method for a flexible pipe sealing joint comprises the following steps: S1: An end tube 15 is provided at the end of the corrugated hose 2 to facilitate connection with other pipes through the end tube 15. A protective cylindrical frame 10 is provided on the surface of the end tube 15. The inner wall of the protective cylindrical frame 10 contacts the surface of the nylon protective sleeve 1 and extends outward for a distance. The protective cylindrical frame 10 is used to protect the connection between the corrugated hose 2 and the end tube 15; S2: An internally threaded frame 11 is provided on the surface of the end tube 15, the externally threaded tube 13 and the internally threaded tube 16 are threadedly connected to the internal portion of the internally threaded frame 11 through the threaded tube 12, making it convenient for the end tube 15 to be connected to other pipes through the externally threaded tube 13 or the internally threaded tube 16, thereby improving the convenience of the corrugated hose 2 during installation; S3: The inner portion of the end tube 15 is provided with a fixing ring 20 for fixing the positioning tube 21, the surface of the positioning tube 21 is sleeved with a cylindrical gasket 22, the cylindrical gasket 22 is used to seal the connection between the end tube 15 and the threaded tube 12; S4: The movable disk 37 pushes the extrusion plate 34 to move when it moves, and the support frame 38 connected to the limit plate 33 will limit the end of the extrusion plate 34. When the movable disk 37 moves, it will push the extrusion plate 34 to expand close to one end of the support frame 38. When the extrusion plate 34 expands, it squeezes the arc pressure plate 32 through the support frame 38.

[0034] When in use, a nylon protective sleeve 1 is provided on the surface of the corrugated hose 2 to protect it and avoid being scratched by sharp objects during use. The nylon protective sleeve 1 can also prevent the corrugated hose 2 from being exposed to the sun and aging. An end pipe 15 is provided at the end of the corrugated hose 2, which is convenient for connecting with other pipes through the end pipe 15. A protective cylindrical frame 10 is provided on the surface of the end pipe 15. The inner wall of the protective cylindrical frame 10 contacts the surface of the nylon protective sleeve 1 and extends outward for a distance. The protective cylindrical frame 10 is used to protect the connection between the corrugated hose 2 and the end pipe 15 to avoid the connection between the corrugated hose 2 and the end pipe 15 from breaking due to twisting. An internal threaded frame 1 is provided on the surface of the end pipe 15. 1. The external threaded pipe 13 and the internal threaded pipe 16 are threadedly connected to the inside of the internal threaded frame 11 through the threaded pipe 12, which makes it convenient for the end pipe 15 to be connected to other pipes through the external threaded pipe 13 or the internal threaded pipe 16, improves the convenience of the corrugated hose 2 during installation, and avoids the situation where the pipes with different thread positions cannot be connected. A sealing gasket 14 is provided inside the threaded pipe 12 to enhance the sealing between the threaded pipe 12 and the end pipe 15. A fixing ring 20 is provided inside the end pipe 15 to fix the positioning pipe 21. A cylindrical sealing gasket 22 is sleeved on the surface of the positioning pipe 21. The cylindrical sealing gasket 22 is used to seal the connection between the end pipe 15 and the threaded pipe 12, thereby improving The sealing between the threaded tube 12 and the end tube 15 is improved. When the cylindrical sealing gasket 22 is pulled to slide toward the outer end of the positioning tube 21, the end of the cylindrical sealing gasket 22 away from the positioning tube 21 will extend to the outer end of the external threaded tube 13 or the internal threaded tube 16. The connection between the external threaded tube 13 or the internal threaded tube 16 and other pipes is sealed by the cylindrical sealing gasket 22, further improving the sealing after the corrugated hose 2 is connected. After the external threaded tube 13 is connected to the other pipes, the water flow inside the pipe enters the end tube 15 and the corrugated hose 2 through the external threaded tube 13. When the water flows, it squeezes the movable disk 37 through the force plate 36. After the movable disk 37 is under pressure, it will move on the slide rod 31 The surface of the cylinder 32 slides, and the moving disc 37 pushes the extrusion plate 34 to move when it moves, and the support frame 38 is connected to the limit plate 33 to limit the end of the extrusion plate 34. When the moving disc 37 moves, it pushes the extrusion plate 34 to expand close to one end of the support frame 38. When the extrusion plate 34 expands, it squeezes the arc pressure plate 32 through the support frame 38. At this time, the arc pressure plate 32 squeezes the inner wall of the cylindrical sealing gasket 22, so that the cylindrical sealing gasket 22 can fit more closely at the connection of parts such as the end pipe 15, thereby improving the sealing of the connection of the end pipe 15 and the like. The greater the water flow rate, the greater the squeezing of the force-bearing plate 36, so that the cylindrical sealing gasket 22 can improve the sealing according to the water flow rate.

[0035] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the content of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A flexible pipe sealing joint, comprising a nylon protective sleeve (1), characterized in that: The inner wall of the nylon protective sleeve (1) is fixedly connected to a corrugated hose (2), and the end of the corrugated hose (2) is provided with a connecting component (3); The connecting component (3) includes an end tube (15), the end of the end tube (15) is fixedly connected to the end of the corrugated hose (2), the surface of the end tube (15) is fixedly connected to a protective cylindrical frame (10), the surface of the protective cylindrical frame (10) is fixedly connected to an internal threaded frame (11), the inner wall of the internal threaded frame (11) is threadedly connected to a threaded tube (12), the inner wall of the threaded tube (12) is plugged with a sealing gasket (14), the number of the threaded tubes (12) is set to two, and the ends of the two threaded tubes (12) away from each other are respectively provided with an external threaded tube (13) and an internal threaded tube (16), the interior of the end tube (15) is provided with a sealing component (4), and the interior of the sealing component (4) is provided with a pressure component (5).

2. The flexible pipe sealing joint according to claim 1, characterized in that: The end of the nylon protective sleeve (1) is fixedly connected to the surface of the end tube (15), and the end of the nylon protective sleeve (1) is located inside the protective cylinder frame (10).

3. The flexible pipe sealing joint according to claim 2, characterized in that: There are two end pipes (15), which are symmetrically arranged with the corrugated hose (2) as the center. The protective cylindrical frame (10) is close to one end of the corrugated hose (2) and extends to the outer end of the end pipe (15).

4. The flexible pipe sealing joint according to claim 3, characterized in that: One end of the internal threaded frame (11) away from the protective cylindrical frame (10) extends to the outer end of the end tube (15), one end of the sealing gasket (14) away from the threaded tube (12) contacts the end of the end tube (15), and the surface of the external threaded tube (13) is adapted to the inner wall of the internal threaded tube (16).

5. The flexible pipe sealing joint according to claim 4, characterized in that: The sealing component (4) comprises a fixing ring (20), the surface of the fixing ring (20) is fixedly connected to the inner wall of the end tube (15), the inner wall of the fixing ring (20) is fixedly connected to a positioning tube (21), and the surface of the positioning tube (21) is sleeved with a cylindrical sealing gasket (22).

6. The flexible pipe sealing joint according to claim 5, characterized in that: The end of the fixing ring (20) extends to the outer end of the end tube (15), the end of the positioning tube (21) extends to the outer end of the fixing ring (20), and the end of the cylindrical sealing gasket (22) away from the positioning tube (21) extends to the interior of the external threaded tube (13), and the surface of the cylindrical sealing gasket (22) contacts the inner wall of the sealing gasket (14).

7. The flexible pipe sealing joint according to claim 6, characterized in that: The pressure component (5) includes a cross (30), the end of the cross (30) is fixedly connected to the inner wall of the positioning tube (21), the surface of the cross (30) is fixedly connected to a slide rod (31), the surface of the slide rod (31) is slidably connected to a moving disk (37), the surface of the moving disk (37) is fixedly connected to a force plate (36), the surface of the moving disk (37) is hinged to an extrusion plate (34), the end of the extrusion plate (34) away from the moving disk (37) is hinged to a support frame (38), the inner wall of the support frame (38) is fixedly connected to a limiting plate (33), and the end of the limiting plate (33) away from the support frame (38) is fixedly connected to an arc pressure plate (32).

8. The flexible pipe sealing joint according to claim 7, characterized in that: The number of the movable disks (37) is four, and the four movable disks (37) are arranged into two groups, with each group having two. The two movable disks (37) are fixedly connected via a connecting rod (35).

9. The flexible pipe sealing joint according to claim 8, characterized in that: The number of the arc pressure plates (32) is set to eight, and the eight arc pressure plates (32) are set to two groups, and the number of each group is set to four. The four arc pressure plates (32) are located inside the cylindrical sealing gasket (22) and contact the inner wall of the cylindrical sealing gasket (22). The two groups of movable plates (37) are symmetrically arranged with the corrugated hose (2) as the center, and the end of the sliding rod (31) away from the cross (30) extends to the inside of the cylindrical sealing gasket (22).

10. A sealing method for a flexible pipe sealing joint according to any one of claims 1 to 9, characterized in that: The steps include: S1: An end pipe (15) is provided at the end of the corrugated hose (2) to facilitate docking with other pipes through the end pipe (15). A protective cylindrical frame (10) is provided on the surface of the end pipe (15). The inner wall of the protective cylindrical frame (10) contacts the surface of the nylon protective sleeve (1) and extends outward for a distance. The protective cylindrical frame (10) is used to protect the connection between the corrugated hose (2) and the end pipe (15); S2: An internal threaded frame (11) is provided on the surface of the end pipe (15), and the external threaded pipe (13) and the internal threaded pipe (16) are threadedly connected to the inside of the internal threaded frame (11) through the threaded pipe (12), so that the end pipe (15) is conveniently connected to other pipes through the external threaded pipe (13) or the internal threaded pipe (16), thereby improving the convenience of the corrugated hose (2) during installation; S3: A fixing ring (20) is provided inside the end tube (15) to fix the positioning tube (21), and a cylindrical sealing gasket (22) is sleeved on the surface of the positioning tube (21). The cylindrical sealing gasket (22) is used to seal the connection between the end tube (15) and the threaded tube (12); S4: The moving disk (37) pushes the extrusion plate (34) to move when it moves, and the support frame (38) is connected to the limit plate (33) to limit the end of the extrusion plate (34). When the moving disk (37) moves, it pushes the extrusion plate (34) to expand close to one end of the support frame (38). When the extrusion plate (34) expands, it squeezes the arc pressure plate (32) through the support frame (38).

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