Safe plugging device for gas pipeline

Abstract

The utility model discloses a safety plugging device for a gas pipeline, which comprises a plugging head connected with a plugging end of the gas pipeline penetrating out of a wall surface, a plugging cover is arranged on the outer side of one end of the plugging head, a packing ring groove is arranged on the outer surface of the plugging cover, and material holes which are communicated with the packing ring groove and are uniformly distributed are arranged on the inner surface of the plugging cover; the plugging capsule assembly comprises a connecting ring spirally connected with one end of the plugging head, a connecting column with one end connected with the connecting ring, a limiting plate connected with the other end of the connecting column, an expansion plugging air bag arranged on the outer side of the connecting column in a sleeving mode, and an air nozzle installed on the connecting ring and communicated with the interior of the connecting column; the mounting ring seat sleeves the outer side of the plugging end of the gas pipeline; a reinforcing plugging material is designed, a connecting ring, a connecting column and a circular-plate-shaped limiting plate limit and support an expansion plugging air bag, a plugging cover at one end of a plugging head and a mounting ring seat are firm by solidified plugging mud, and the plugging mud enables the plugging cover, the mounting ring seat and the limiting ring to be in a firm sealing state.

Description

Technical Field

[0001] The utility model belongs to the technical field of gas pipeline plugging devices, and in particular relates to a safe plugging device for a gas pipeline. Background Art

[0002] When the gas pipe passes through a floor, it must be blocked to ensure the safety of the residents. The blocking methods are mainly divided into valve blocking and pipe blocking. The pipe blocking method is to fill the blocking material into the exposed part of the gas pipe to completely block the gas inside the gas pipe to prevent leakage. Commonly used blocking materials include polyurethane foam, disposable foam glue, silicone sealant or blocking mud. Commonly used blocking devices include blocking heads and blocking rubber airbags.

[0003] When the above pipeline is blocked, a single blocking mud blocking method is used. The blocking mud blocking material and the pipeline will crack due to thermal expansion and contraction, and the blocking effect will be lost. In addition, the blocking rubber airbag will leak in the long term, causing the gap between the pipeline and the airbag to become larger, thus losing the blocking effect. With a single blocking method, the materials or devices required for blocking are easily disturbed. When the gas pipeline is blocked, there is a problem of no design to reinforce the blocking material. For this reason, the present application proposes a safe blocking device for the gas pipeline. Utility Model Content

[0004] The utility model aims to provide a safe plugging device for a gas pipeline, so as to solve the problem of the design without reinforcing plugging materials when plugging the gas pipeline proposed in the above background technology.

[0005] To achieve the above purpose, the utility model provides the following technical solutions: a safe plugging device for a gas pipeline, comprising:

[0006] A plugging head connected to the plugging end of the gas pipeline passing through the wall, a plugging cover is provided on the outside of one end of the plugging head, a packing ring groove is provided on the outer surface of the plugging cover, and evenly distributed material holes communicating with the packing ring groove are provided on the inner surface of the plugging cover;

[0007] The plugging capsule assembly includes a connecting ring spirally connected to one end of the plugging head, a connecting column connected to the connecting ring at one end, a limiting plate connected to the other end of the connecting column, an inflatable plugging airbag sleeved on the outside of the connecting column, and an air nozzle installed on the connecting ring and connected to the inside of the connecting column;

[0008] A mounting ring seat is sleeved on the outside of the plugging end of the gas pipeline, the inner surface of the mounting ring seat is provided with a limiting ring, and the outer surface of the limiting ring is provided with evenly distributed filling holes.

[0009] Preferably, an annular mounting groove is provided on the side of the plugging cover facing the limiting ring, the limiting ring cooperates with the mounting groove, and the outer diameter of the plugging head cooperates with the inner diameter of the plugging end of the gas pipeline.

[0010] Preferably, an annular filling groove is formed between the mounting ring seat and the limiting ring, and a reinforcing plate is provided on the inner side wall of the mounting ring seat located in the filling groove.

[0011] Preferably, a through hole is provided on the reinforcing plate, and the reinforcing plate divides the filling slot into a limiting cavity a and a separating cavity b.

[0012] Preferably, the plugging cover cooperates with the limiting cavity a, the filler ring groove on the plugging cover installed in the mounting ring seat corresponds to the separating cavity b, and the material hole corresponds to the filling hole.

[0013] Preferably, the centers of the connecting ring, the connecting column, the limiting plate and the sealing head are on the same axis, and the connecting ring and the limiting plate are parallel.

[0014] Preferably, the connecting column is connected to the interior of the expandable and blocking airbag, the air nozzle is connected to the expandable and blocking airbag through the connecting column, and the outer diameter of the blocking capsule assembly is 2 mm smaller than the outer diameter of the expandable and blocking airbag.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] In the utility model, there is a design of reinforcing the sealing material, and the connecting ring, the connecting column and the circular plate-shaped limiting plate limit the support to expand the sealing airbag, and the plugging cover on one end of the sealing head is firmly fixed to the mounting ring seat by solidified sealing mud. The sealing mud makes the plugging cover, the mounting ring seat and the limiting ring in a sealed and firm state. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the main structure of the plugging capsule assembly of the utility model;

[0019] Figure 3 It is a side view structural schematic diagram of the plugging head of the utility model;

[0020] Figure 4 It is a side view structural diagram of the mounting ring seat of the utility model;

[0021] Figure 5 It is a cross-sectional structural schematic diagram of the mounting ring seat of the utility model;

[0022] In the figure: 1. Gas pipeline plugging end; 2. Sealing head; 3. Plug cover; 4. Sealing capsule assembly; 5. Mounting ring seat; 31. Filling ring groove; 32. Material hole; 41. Connecting ring; 42. Connecting column; 43. Limiting plate; 44. Inflatable plugging airbag; 45. Gas nozzle; 51. Limiting ring; 52. Reinforcement plate; 511. Filling hole; 521. Through hole. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Example

[0025] See also Figures 1 to 5 The utility model provides a technical solution: a safe plugging device for a gas pipeline, comprising a plugging head 2 connected to a plugging end 1 of a gas pipeline passing through a wall, the plugging head 2 made of PE material is inserted into the plugging end 1 of the gas pipeline to achieve a plugging effect, a plugging cover 3 is provided on the outer side of one end of the plugging head 2, the plugging cover 3 seals the gap between the plugging head 2 and the plugging end 1 of the gas pipeline, a packing ring groove 31 is provided on the outer surface of the plugging cover 3, and uniformly distributed material holes 32 connected to the packing ring groove 31 are provided on the inner surface of the plugging cover 3, and the plugging mud can be filled in the packing ring groove 31 to increase the plugging and sealing effect; a plugging capsule assembly 4, comprising a connecting ring 41 spirally connected to one end of the plugging head 2, a connecting column 42 connected to the connecting ring 41 at one end, a limiting plate 43 connected to the other end of the connecting column 42, an inflatable plugging airbag 44 sleeved on the outer side of the connecting column 42, and an expansion plugging airbag 44 installed on the connecting ring 41 and An air nozzle 45 is connected to the inside of the connecting column 42, and an external conventional inflation device inflates air from the air nozzle 45 to expand the expandable sealing airbag 44, and then the expanded expandable sealing airbag 44 is interference fit with the inner wall of the gas pipeline blocking end 1 to achieve a blocking effect. The connecting ring 41, the connecting column 42 and the circular plate-shaped limiting plate 43 limit and support the expandable sealing airbag 44 to prevent it from deforming; a mounting ring seat 5 is sleeved on the outside of the gas pipeline blocking end 1, and a limiting ring 51 is provided on the inner surface of the mounting ring seat 5, and uniformly distributed filling holes 511 are opened on the outer surface of the limiting ring 51. The mounting ring seat 5 is fixed to the wall around the gas pipeline blocking end 1 by conventional methods, and the plugging cover 3 is placed inside the mounting ring seat 5, and the filling ring groove 31 is filled with sealing mud. The sealing mud passes through the material hole 32 and enters the filling hole 511, so that the plugging cover 3 and the limiting ring 51 are in a sealed and firm state to prevent air leakage.

[0026] In this embodiment, an annular installation groove is provided on the side of the plugging cover 3 facing the limiting ring 51, the limiting ring 51 cooperates with the installation groove, the plugging cover 3 covers the limiting ring 51, the outer diameter of the sealing head 2 cooperates with the inner diameter of the sealing end 1 of the gas pipeline, and an annular filling groove is formed between the mounting ring seat 5 and the limiting ring 51. The mounting ring seat 5 is located on the inner side wall of the filling groove and a reinforcing plate 52 is provided. The sealing mud is filled in the filling groove, and the reinforcing plate 52 has the effect of strengthening and solidifying the sealing mud.

[0027] In this embodiment, a through hole 521 is opened on the reinforcing plate 52, and the reinforcing plate 52 divides the filling groove into a limiting chamber a and a separating chamber b. The plugging cover 3 cooperates with the limiting chamber a, and the filling ring groove 31 on the plugging cover 3 installed in the mounting ring seat 5 corresponds to the separating chamber b, and the material hole 32 corresponds to the filling hole 511. The sealing mud is filled in the interior of the limiting chamber a and the separating chamber b. The sealing mud passes through the material hole 32 and is filled in the filling hole 511, so that the plugging cover 3 and the limiting ring 51 are in a firmly sealed state.

[0028] In this embodiment, the centers of the connecting ring 41, the connecting column 42, the limiting plate 43 and the sealing head 2 are on the same axis, the connecting ring 41 and the limiting plate 43 are parallel, the connecting column 42 is connected to the inside of the expandable sealing airbag 44, the air nozzle 45 is connected to the expandable sealing airbag 44 through the connecting column 42, the outer diameter of the sealing capsule assembly 4 is 5 mm smaller than the outer diameter of the expandable sealing airbag 44, and an external conventional inflation device inflates the expandable sealing airbag 44 from the air nozzle 45 to expand the expandable sealing airbag 44, and then the expanded expandable sealing airbag 44 is interference fit with the inner wall of the gas pipeline sealing end 1 to achieve a sealing effect, and the connecting ring 41, the connecting column 42 and the limiting plate 43 in the shape of a circular plate limit and support the expandable sealing airbag 44 to prevent it from deforming.

[0029] The working principle and use process of this utility model:

[0030] When plugging the plugging end 1 of the gas pipeline, the mounting ring seat 5 is mounted on the outer side of the plugging end 1 of the gas pipeline;

[0031] The plugging head 2 is connected to the plugging end 1 of the gas pipeline, and the plugging head 2 plugs the plugging end 1 of the gas pipeline;

[0032] The plugging capsule assembly 4 enters the interior of the plugging end 1 of the gas pipeline along with the plugging head 2, and an external conventional inflating device inflates air from the air nozzle 45 to inflate the expandable plugging airbag 44, and then the inflated expandable plugging airbag 44 is interference-fitted with the inner wall of the plugging end 1 of the gas pipeline to achieve a plugging effect, and the connecting ring 41, the connecting column 42 and the circular plate-shaped limiting plate 43 limit and support the expandable plugging airbag 44 to prevent its deformation;

[0033] The plugging cover 3 covers the limiting ring 51, and the plugging mud is filled in the filling groove of the mounting ring seat 5. The reinforcing plate 52 plays the role of reinforcing and solidifying the plugging mud. The plugging mud passes through the material hole 32 and enters the filling hole 511, so that the plugging cover 3 and the limiting ring 51 are in a sealed and firm state to avoid air leakage.

[0034] To sum up: there is a design of reinforced sealing materials, the connecting ring 41, the connecting column 42 and the circular plate-shaped limiting plate 43 limit and support the inflatable sealing airbag 44, the plugging cover 3 on one end of the plugging head 2 is firmly fixed to the mounting ring seat 5 by the solidified sealing mud, and the sealing mud makes the plugging cover 3, the mounting ring seat 5 and the limiting ring 51 in a sealed and firm state.

[0035] Although the embodiments of the present invention have been shown and described (see the above detailed description for details), it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A safe plugging device for a gas pipeline, characterized in that: include A plugging head (2) connected to a plugging end (1) of a gas pipeline passing through a wall, a plugging cover (3) is provided on the outside of one end of the plugging head (2), a packing ring groove (31) is provided on the outer surface of the plugging cover (3), and evenly distributed material holes (32) communicating with the packing ring groove (31) are provided on the inner surface of the plugging cover (3); The plugging capsule assembly (4) comprises a connecting ring (41) spirally connected to one end of the plugging head (2), a connecting column (42) connected to the connecting ring (41) at one end, a limiting plate (43) connected to the other end of the connecting column (42), an inflatable plugging airbag (44) sleeved on the outside of the connecting column (42), and an air nozzle (45) mounted on the connecting ring (41) and connected to the inside of the connecting column (42); A mounting ring seat (5) is sleeved on the outside of a gas pipeline plugging end (1), wherein a limiting ring (51) is provided on the inner surface of the mounting ring seat (5), and uniformly distributed filling holes (511) are provided on the outer surface of the limiting ring (51).

2. A safe plugging device for a gas pipeline according to claim 1, characterized in that: The side of the plugging cover (3) facing the limiting ring (51) is provided with an annular installation groove, the limiting ring (51) cooperates with the installation groove, and the outer diameter of the plugging head (2) cooperates with the inner diameter of the plugging end (1) of the gas pipeline.

3. A safe plugging device for a gas pipeline according to claim 1, characterized in that: An annular filling groove is formed between the mounting ring seat (5) and the limiting ring (51), and a reinforcing plate (52) is provided on the inner side wall of the mounting ring seat (5) located at the filling groove.

4. A safe plugging device for a gas pipeline according to claim 3, characterized in that: The reinforcing plate (52) is provided with a through hole (521), and the reinforcing plate (52) divides the filling slot into a limiting cavity a and a separating cavity b.

5. A safe plugging device for a gas pipeline according to claim 4, characterized in that: The plugging cover (3) cooperates with the limiting cavity a, the packing ring groove (31) on the plugging cover (3) installed in the mounting ring seat (5) corresponds to the separating cavity b, and the material hole (32) corresponds to the filling hole (511).

6. A safe plugging device for a gas pipeline according to claim 1, characterized in that: The centers of the connecting ring (41), the connecting column (42), the limiting plate (43) and the plugging head (2) are located on the same axis, and the connecting ring (41) and the limiting plate (43) are parallel.

7. A safe plugging device for a gas pipeline according to claim 1, characterized in that: The connecting column (42) is connected to the inside of the expansion and blocking airbag (44), and the air nozzle (45) is connected to the expansion and blocking airbag (44) through the connecting column (42). The outer diameter of the blocking capsule assembly (4) is 2 mm smaller than the outer diameter of the expansion and blocking airbag (44).

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