Sealing device for bending pipeline to designated position

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By combining the limiting plate with the airbag assembly, the problem of sealing the gap between the pipe and the container is solved, ensuring that the pipe maintains the designated position during bending, thus achieving the stability and reliability of the seal.

CN223740238UActive Publication Date: 2025-12-30应松

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Patent Information

Application Number: CN202520416248.X
Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner
Filing Date: 2025-03-11
Publication Date: 2025-12-30
Estimated Expiration: 2035-03-11

AI Technical Summary

Technical Problem

Existing pipes are prone to gaps at the connection with containers, resulting in poor sealing, especially when extracting special liquids, making it impossible to maintain a complete seal.

Method used

The system uses a limiting plate in conjunction with an airbag assembly. The airbag expands and fills the gap between the outer and inner tubes to form a dynamic seal. The wheel-shaped airbag in the sealing assembly provides a secondary seal, and the limiting plate axially positions the inner tube to ensure that it remains in the designated position during bending.

Benefits of technology

It achieves effective sealing at the connection between the pipe and the container, prevents leakage, ensures that the inner tube does not shift during bending, and improves the reliability and stability of the seal.

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Figure CN223740238U_ABST

Patent Text Reader

Abstract

The utility model discloses a sealing device for bending a pipeline to a designated position, and belongs to the technical field of sealing devices. The sealing device used for bending the pipeline to the designated position comprises an outer pipe and an inner pipe, a limiting plate is installed on one side of the interior of the outer pipe, a hole penetrating through the inner pipe is formed in the center of the limiting plate, an air bag assembly is arranged on one side of the limiting plate, a pipe cover assembly is arranged at one end of the outer pipe, and the pipe cover assembly is arranged at the other end of the outer pipe. One side of the tube cover assembly makes contact with one side of the air bag assembly, one side of the outer wall of the outer tube is sleeved with a sealing assembly, the sealing assembly comprises a fixing sleeve part, a containing groove is formed in the outer side of the fixing sleeve part, a wheel-shaped air bag is arranged in the containing groove, the air bag assembly comprises an annular air bag, and the annular air bag is arranged in the containing groove. An air hole is formed in one side of the annular air bag, and a valve core is installed in the air hole.

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Description

TECHNICAL FIELD

[0001] The utility model relates to sealing device technical field, specifically for a kind of sealing device for bending pipeline to specified position. BACKGROUND

[0002] At present, when extracting liquid in container, the one end of pipeline is extended to the inside of container, and is extracted by negative pressure, due to the special nature of part of liquid in container, it needs to be extracted in completely sealed environment, and the existing conveying pipeline is limited by its own structure, which may cause gap at the connection between container and outer pipe, and lose sealing effect. SUMMARY

[0003] In order to solve the problem that the existing pipeline is not conducive to sealing, the utility model provides a sealing device for bending pipeline to specified position.

[0004] In view of the above problems, the technical scheme provided by the utility model is:

[0005] A sealing device for bending pipeline to specified position, comprising an outer pipe and an inner pipe, a limit plate is installed on one side of the inside of the outer pipe, a hole hole is opened in the center position of the limit plate, the inner pipe is inserted into each other, one side of the limit plate is provided with a gas bag assembly, one end of the outer pipe is provided with a pipe cover assembly, one side of the pipe cover assembly is in contact with one side of the gas bag assembly, the outer wall of the outer pipe is provided with a sealing assembly on one side, the sealing assembly comprises a fixed sleeve, a placing groove is opened on the outside of the fixed sleeve, a wheel-shaped gas bag is arranged in the placing groove.

[0006] Further, the gas bag assembly comprises a ring-shaped gas bag, a gas hole is opened on one side of the ring-shaped gas bag, and a valve core is installed in the gas hole.

[0007] The beneficial effects of the above further scheme are that the valve core can adjust the inflation amount, adapt to inner pipes of different inner diameters, and improve the versatility of the device; uniform pressure is formed after inflation, ensuring the sealing reliability.

[0008] Further, the outer wall of the ring-shaped gas bag is provided with an anti-skid coating, and the outer wall of the anti-skid coating is in contact with the inside of the outer pipe.

[0009] The beneficial effects of the above further scheme are that the anti-skid coating increases the friction between the ring-shaped gas bag and the inner wall of the outer pipe, prevents the gas bag from sliding under pressure, and maintains the stability of the sealing structure.

[0010] Further, the pipe cover assembly comprises a cover body, a threaded plug is connected to one side of the cover body, one end of the threaded plug is threadedly connected to one end of the outer pipe, and one end of the inner pipe is connected to the inside of the threaded plug.

[0011] The beneficial effect of the further scheme is that the threaded plug of the pipe cover assembly is screwed with the outer pipe to realize quick installation, and the inner pipe passes through the center of the threaded plug to ensure the axial position fixed and facilitate the bending operation.

[0012] Further, the outer wall of the threaded plug is sleeved with a gasket, one side of the gasket is in contact with one side of the cover body.

[0013] The beneficial effect of the further scheme is that the gasket fills the gap between the threaded plug and the cover body to prevent medium leakage, and at the same time, relieves the stress concentration of the threaded connection to prolong the service life.

[0014] Further, one side of the wheel-shaped air bag is communicated with a gas pipe, one end of the gas pipe extends to the outside of the fixing sleeve, and a sealing plug is screwed with the gas pipe.

[0015] The beneficial effect of the further scheme is that the external design of the gas pipe facilitates the connection of the inflation equipment, and the sealing plug ensures the air tightness after inflation; the wheel-shaped air bag can be inflated independently to adapt to the local sealing requirement.

[0016] Further, a circular hole is formed in the outer wall of the fixing sleeve, which is matched with the gas pipe.

[0017] The beneficial effect of the further scheme is that the circular hole is accurately matched with the gas pipe to avoid the extrusion deformation of the gas pipe in the fixing sleeve; and the exposed part has no protruding structure to reduce the risk of external collision damage.

[0018] Compared with the prior art, the beneficial effect of the utility model is:

[0019] The sealing device for bending the pipeline to the specified position is matched with the air bag assembly through the limiting plate, fills the gap between the outer pipe and the inner pipe through the air bag expansion, and forms dynamic sealing; the wheel-shaped air bag of the sealing assembly provides secondary sealing on the outer wall of the outer pipe, ensures that the connection between the pipeline and the container does not appear the bending leakage condition, the center hole of the limiting plate axially positions the inner pipe, in combination with the radial support of the air bag assembly, ensures that the inner pipe keeps the specified position in the bending process, and avoids the deviation. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 The utility model provides a kind of sealing device for bending the pipeline to the specified position of solid schematic view;

[0021] Figure 2 The utility model provides a kind of sealing device for bending the pipeline to the specified position of sectional view;

[0022] Figure 3The sealing assembly expansion schematic view of the sealing device for bending the pipeline to the specified position is provided in the utility model;

[0023] Figure 4 The pipe cover assembly schematic view of the sealing device for bending the pipeline to the specified position is provided in the utility model;

[0024] Figure 5 The air bag assembly schematic view of the sealing device for bending the pipeline to the specified position is provided in the utility model.

[0025] In the drawing: 100, outer pipe; 200, inner pipe; 300, sealing assembly; 3001, fixed sleeve; 3002, placing groove; 3003, wheel-shaped air bag; 3004, inflation pipe; 3005, round hole; 3006, sealing plug; 400, pipe cover assembly; 4001, cover body; 4002, threaded plug; 4003, gasket; 500, limiting plate; 600, air bag assembly; 6001, annular air bag; 6002, valve core; 6003, anti-skid coating. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the ordinary skilled in the art without creative labor fall within the protection scope of the utility model.

[0027] Please refer to Figures 1-5The utility model provides a technical scheme: a sealing device for bending pipeline to specified position, including outer tube 100 and inner tube 200, the inside one side of outer tube 100 is installed with the limiting board 500, the central position of limiting board 500 is equipped with the hole hole that interpenetrates with inner tube 200, one side of limiting board 500 is equipped with air bag assembly 600, one end of outer tube 100 is equipped with the pipe cover assembly 400, one side of pipe cover assembly 400 is in contact with one side of air bag assembly 600, and the outer wall one side of outer tube 100 is equipped with sealing assembly 300, and sealing assembly 300 includes fixed sleeve 3001, and the outside of fixed sleeve 3001 is equipped with the placement groove 3002, and the inside of placement groove 3002 is equipped with the wheel air bag 3003, and through limiting board 500 and air bag assembly 600 cooperation, through the inflation of air bag, the gap of outer tube 100 and inner tube 200 is filled, and dynamic sealing is formed, the wheel air bag 3003 of sealing assembly 300 provides secondary sealing on the outer wall of outer tube, ensures that the connecting place of pipeline and container no longer appears the condition of bending leakage, and the central hole of limiting board 500 carries out axial positioning to inner tube 200, and in combination with the radial support of air bag assembly 600, it is guaranteed that inner tube keeps specified position in the bending process, avoids deviation.

[0028] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model and not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0029] As an embodiment of the utility model, further, air bag assembly 600 includes annular air bag 6001, and the side of annular air bag 6001 is equipped with air hole, and the inside of air hole is installed with valve core 6002, and the inflation amount can be adjusted through valve core 6002, and the inner tube 200 of different inner diameter is adapted, and the versatility of the device is improved, and even pressure is formed after inflation, and the sealing reliability is ensured, and the outer wall of annular air bag 6001 is equipped with antiskid coating 6003, and the outer wall of antiskid coating 6003 is attached to the inside of outer tube 100, and antiskid coating 6003 increases the friction of annular air bag 6001 and the inner wall of outer tube 100, prevents air bag from sliding under the action of pressure, and maintains the stability of sealing structure.

[0030] As an embodiment of the utility model, further, the pipe cover assembly 400 includes a cover body 4001, one side of the cover body 4001 is connected with a threaded plug 4002, one end of the threaded plug 4002 is threadedly connected with one end of the outer pipe 100, and one end of the inner pipe 200 is connected with the inside of the threaded plug 4002, the threaded plug 4002 of the pipe cover assembly 400 is threadedly connected with the outer pipe 100, quick installation is realized; the inner pipe 200 passes through the center of the threaded plug 4002, the axial position is fixed, bending operation is facilitated, the outer wall of the threaded plug 4002 is sleeved with a gasket 4003, one side of the gasket 4003 is in contact with one side of the cover body 4001, the gasket 4003 fills the gap between the threaded plug 4002 and the cover body 4001, and medium leakage is prevented; meanwhile, stress concentration of the threaded connection is relieved, and the service life is prolonged.

[0031] As an embodiment of the utility model, further, one side of the wheel-shaped air bag 3003 is communicated with an inflation pipe 3004, one end of the inflation pipe 3004 extends to the outside of the fixing sleeve 3001, and a sealing plug 3006 is threadedly connected with the inflation pipe 3004, the inflation pipe 3004 is designed to be externally connected with the inflation equipment, and the sealing plug 3006 ensures air tightness after inflation; the wheel-shaped air bag 3003 can be independently inflated, local sealing is adapted, a circular hole 3005 that is matched with the inflation pipe 3004 is formed in the outer wall of the fixing sleeve 3001, the circular hole 3005 is accurately matched with the inflation pipe 3004, and extrusion deformation of the inflation pipe in the fixing sleeve 3001 is avoided; the exposed part has no protruding structure, and the risk of external collision damage is reduced.

[0032] Specifically, the working principle of the sealing device for bending the pipeline to the specified position is as follows: first, the inner tube 200 is inserted through the hole in the center of the limiting plate 500, and the limiting plate 500 plays a role in axial positioning and guiding the inner tube 200. Then, the threaded plug 4002 of the pipe cover assembly 400 is screwed into one end of the outer tube 100, and one end of the inner tube 200 also passes through the inside of the threaded plug 4002. The gasket 4003 enhances the sealing and buffering effect between the threaded plug 4002 and the cover body 4001. Then, the air bag assembly 600 is operated, and the annular air bag 6001 is inflated through the valve core 6002. Since the outer wall of the annular air bag 6001 has a non-slip coating 6003 that adheres to the inner wall of the outer tube 100, the air bag is prevented from sliding. As the annular air bag 6001 expands, it fills the gap between the outer tube 100 and the inner tube 200, achieving radial sealing. At the same time, the side of the cover body 4001 contacts the side of the air bag assembly 600, further fixing the position of the air bag assembly 600. For the sealing assembly 300, the sealing plug 3006 at one end of the inflation tube 3004 is unscrewed, and the wheel-shaped air bag 3003 is inflated through the inflation tube 3004. After the wheel-shaped air bag 3003 expands, the connection between the outer tube 100 and the container is filled and sealed. The inflation tube 3004 passes through the circular hole 3005 in the outer wall of the fixing sleeve 3001, ensuring the compactness of the structure and the safety of the inflation tube 3004. After the above sealing operation is completed, the device can ensure that the inner tube 200 is in the process of being bent to the specified position, and the sealing effect between the outer tube 100 and the inner tube 200 and the outside of the outer tube 100, effectively ensuring that the delivery pipeline is in a sealed state at all times.

Claims

1. A sealing device for bending a pipe to a specified position, characterized in that, The utility model provides an airbag assembly and a pipe cover assembly, and the airbag assembly is arranged on one side of the limiting plate, and the pipe cover assembly is arranged on one end of the outer tube, and the inner tube is connected with the outer tube through the limiting plate and the pipe cover assembly, and the airbag assembly is connected with the pipe cover assembly, and the airbag assembly is connected with the pipe cover assembly, and the airbag assembly is connected with the pipe cover assembly, and the airbag assembly is connected with the pipe cover assembly, and the airbag assembly is connected with the pipe cover assembly, and the airbag assembly is connected with the pipe cover assembly, and the airbag assembly is connected with the pipe cover assembly, and the airbag assembly is connected with the pipe cover assembly, and the airbag assembly is connected with the pipe cover assembly, and the airbag assembly is connected with the pipe cover assembly, and the airbag assembly is connected with the pipe cover assembly, and the airbag assembly is connected with the pipe cover assembly, and the airbag assembly is connected with the pipe cover assembly, and the airbag assembly is connected with the pipe cover assembly, and the airbag assembly is connected with the pipe cover assembly, and the airbag assembly is connected with the pipe cover assembly, and the airbag assembly is connected with the pipe cover assembly, and the airbag assembly is connected with the pipe cover assembly, and the airbag assembly is connected with the pipe cover assembly, and the airbag assembly is connected with the pipe cover assembly, and the airbag assembly is connected with the pipe cover assembly, and the airbag assembly is connected with the pipe cover assembly, and the airbag assembly is connected with the pipe cover assembly, and the airbag assembly is connected with the pipe cover assembly, and the airbag assembly is connected with the pipe cover assembly, and the airbag assembly is connected with the pipe cover assembly, and the airbag assembly is connected with the pipe cover assembly, and the airbag assembly is connected with the pipe cover assembly, and the airbag assembly is connected with the pipe cover assembly, and the airbag assembly is connected with the pipe cover assembly, and the airbag assembly is connected with the pipe cover assembly, and the airbag assembly is connected with the pipe cover assembly, and the airbag assembly is connected with the pipe cover assembly, and the airbag assembly is connected with the pipe cover assembly, and the airbag assembly is connected with the pipe cover assembly, and the airbag assembly is connected with the pipe cover assembly, and the airbag assembly is connected with the pipe cover assembly, and the airbag assembly is connected with the pipe cover assembly, and the airbag assembly is connected with the 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and the airbag assembly is connected with the pipe cover assembly, and the airbag assembly is connected with the pipe cover assembly, and the airbag assembly is connected with the pipe cover assembly, and the airbag assembly is connected with the pipe cover assembly, and the airbag assembly is connected with the pipe cover assembly, and the airbag assembly is connected with the pipe cover assembly, and the airbag assembly is connected with the pipe cover assembly, and the airbag assembly is connected with the pipe cover assembly, and the airbag assembly is connected with the pipe cover assembly, and the airbag assembly is connected with 2. A sealing device for bending a pipe to a specified position according to claim 1, characterized in that 3. A sealing device for bending a pipe to a specified position according to claim 2, characterized in that 4. A sealing device for bending a pipe to a specified position according to claim 1, characterized in that, 5. A sealing device for bending a pipe to a specified position according to claim 4, characterized in that 6. A sealing device for bending a pipe to a specified position according to claim 1, characterized in that, 7. A sealing device for bending a pipe to a specified position according to claim 6, characterized in that