CN213089149U - Pressure-changing type pipeline emergency repair joint - Google Patents

Abstract

The utility model discloses a festival is salvageed to variable pressure formula pipeline. The outer hoop fastening device comprises two corresponding half-sleeve bodies and an all-round sealing device, the all-round sealing device comprises two sealing air bags which are corresponding to each other and are arranged on the inner wall surfaces of the two half-sleeve bodies respectively, the sealing air bags are provided with an inflating device and are connected to the peripheral wall surface of the pipeline in an air-tight wrapping mode through the inner wall surfaces of the two half-sleeve bodies respectively, and the sealing air bags are arc-shaped or semicircular. The variable pressure pipeline rush repair joint is simple and reasonable in structure, wide in application range and convenient to use.

Description

Pressure-changing type pipeline emergency repair joint

Technical Field

The utility model relates to a festival is salvageed to variable pressure formula pipeline.

Background

The pipeline repairing joint is one pipeline repairing device, and is used to repair pipeline directly in pipeline breaking leakage point. The existing pipeline rush-repair joint is in one-to-one correspondence with the specification requirement of the pipeline and is small in adaptation to the change range of the running pressure of the pipeline. The use pertinence is strong, and the adaptability is not enough. For the emergency repair of the pipeline which is broken and leaked and takes a second time, the defect that the timely and rapid repair of the pipeline is affected frequently occurs, and the defect is prominent.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the problem that above-mentioned prior art exists, provide a festival is salvageed to variable pressure formula pipeline. The variable pressure pipeline rush repair joint is simple and reasonable in structure, wide in application range and convenient to use.

The utility model discloses the technical scheme of section is salvageed to variable pressure formula pipeline includes the outer hoop fastener corresponding with corresponding pipeline, outer hoop fastener includes the double-phase half cover body that corresponds, still includes all-round sealing device, all-round sealing device sets up respectively in two including mutual correspondence two sealed gas bags of half cover internal face, sealed gas bag is equipped with aerating device, and two sealed gas bags are connected in pipeline periphery wall through two half cover internal face gas tightness wraps up respectively, sealed gas bag is arc or semi-circular.

The two half-cover bodies or the corresponding half-cover body and the corresponding sealing air bag are provided with corresponding drainage holes, and the drainage holes of the sealing air bag are separated from the sealing air bag in an airtight manner.

The drain hole is connected with a drain valve through a quick connection device.

The utility model discloses the festival commonality is salvageed to variable pressure formula pipeline is strong, need not to select to the concrete specification of pipeline etc. very much during the use, can be adapted to the pipeline of different specifications and salvage in the certain limit, and use easy operation, and is convenient, especially, it can be according to the operation operating mode fluid medium pressure of intraductal difference, apply corresponding sealed extrusion force, in order to obtain corresponding moderate degree, the leakproofness that suits, sealing performance is good, it is sealed effectual, the sealing reliability is high, the pipeline of the fluid medium operating mode that is adapted to various operational environment is quick, in time, effectively and reliably salvageed.

Drawings

FIG. 1 is a schematic exploded view of an embodiment of a pressure-varying type pipeline emergency repair section of the present invention; FIG. 2 is a use state diagram; fig. 3 and 4 are schematic structural views of a half-sleeve body and a closed-loop sealing airbag of an external hoop fastening device according to another embodiment of the present invention; FIG. 5 is a schematic view of the connection structure of the half-cover and the closed-loop sealing airbag in the embodiment of FIG. 3; fig. 6 is the structural schematic diagram of another embodiment of the pressure-changing type pipeline emergency repair joint of the present invention.

Detailed Description

In order to facilitate a better understanding of the present invention, the present invention will be further described with reference to the following embodiments and drawings.

As shown in fig. 1-2, the pressure-changing pipeline emergency repair joint comprises a tightly holding sealing device, the tightly holding sealing device of the embodiment comprises an outer hoop fastening device corresponding to a corresponding pipeline 7, and the outer hoop fastening device comprises two half-sleeve bodies 1 which correspond to each other and have arc-shaped or approximately semicircular cross sections. Two corresponding sealing air bags 2a are fixedly arranged on the inner wall surface of the half-sleeve body in an adhesive manner, and the length of each sealing air bag can correspond to that of the half-sleeve body. The cross section of the sealed air bag is arc-shaped or approximately semicircular. The two sealed air bags 2a are in surrounding type sealed compression joint with the outer peripheral wall of the pipeline through the two half sleeve bodies 1 through corresponding connecting devices. The radian of the arc or the approximate semicircle of the half sleeve body is larger than that of the semicircle of the pipeline. The two half sleeve bodies can be correspondingly adapted to the pipeline with the variable radius after being correspondingly installed. The half of the half sleeve body of the utility model is not to say that the two half sleeve bodies are jointed to be the whole arc-shaped closed body or the half close to the circular shape.

The two opposite sides of the half sleeve body are respectively provided with an arc-shaped expansion convex edge 21a and a corresponding arc-shaped expansion groove 21b in cooperation with the wall surface of the connecting part. When the pipeline is relatively large, the distance between the two half sleeve bodies is relatively large, and the arc-shaped expansion convex edge 21a and the arc-shaped expansion groove 21b can be used for realizing the rush repair of the pipeline with the size changed in a certain range, so that the space between the two half sleeve bodies can be kept approximately the same when in use. So as to improve the sealing strength and reliability of the sealing airbag to larger pipelines.

One half of the sleeve body 1b and the corresponding sealing air bag are provided with mutually corresponding drainage holes 4, and the drainage holes of the sealing air bag and the sealing air bag form air-tight isolation. The drainage hole of the half sleeve body 1b is connected with a drainage pipe 5. The sealed air bag is provided with an inflating device, and the inflating device comprises an inflating nozzle 3 connected to the sealed air bag and a corresponding inflating source (such as an air source device of a pneumatic pump, an inflator and the like). The sealing air bag can also be of a flat cushion type.

After the two half sleeve bodies are oppositely and correspondingly combined, the two half sleeve bodies are sheathed and pressed on the outer wall surface of the pipeline through the mounting holes of the convex wing edges 12 of the two opposite sides matched with the connecting parts and the fastening bolts 6 thereof. After the two half sleeve bodies are correspondingly connected, a closed loop circle formed by combining the two half sleeve bodies is approximate to an ellipse, and a certain interval is formed between the two half sleeve bodies, so that the two half sleeve bodies are suitable for pipelines with different sizes on one hand, and on the other hand, the inflation quantity change of the sealing air bag and the adjustment of the sealing pressure of the two half sleeve bodies which are mutually pressed are convenient to adjust.

When in use, the two half-sleeved bodies and the sealing air bags are covered at the fracture part of the pipeline 7, and the upper half-sleeved body, the lower half-sleeved body, the left half-sleeved body and the right half-sleeved body are oppositely pressed on the peripheral wall surface of the pipeline through screws, so that the sealing air bags at the two sides are oppositely pressed and wrapped on the peripheral wall surface of the pipeline. The pipeline leakage can be blocked. The small amount of fluid that seeps out of the focus in the conduit can be vented through a drain valve attached to the drain tube.

In example 2. As shown in fig. 3-5, in the pressure-changing type pipe rush-repair joint of this embodiment, the half sleeve body is provided with a closed-loop sealed accommodating groove, the closed-loop sealed accommodating groove comprises accommodating arc-shaped grooves 8 respectively arranged on the inner wall surface of the half sleeve body 1 near two opposite ends, and accommodating straight-shaped grooves 9 on the convex wing edges 12 on two opposite sides of the half sleeve body and communicated with the accommodating arc-shaped grooves 8, and the accommodating arc-shaped grooves are surrounded by two spaced convex flanges 10 on the arc-shaped inner wall surface of the half sleeve body and the inner wall surface of the corresponding part of the half sleeve body. A leakage accommodating arc-shaped groove 11 is arranged between the two accommodating arc-shaped grooves 8 of the half sleeve body 1, and the leakage accommodating arc-shaped groove is formed by arc-shaped inner spaces of the half sleeve body between the accommodating arc-shaped grooves at the two ends of the leakage accommodating arc-shaped groove.

The closed-loop sealing air bag 2b of the closed-loop sealing accommodating groove is arranged to be corresponding to the overall cavity structure formed by the accommodating arc-shaped groove and the accommodating straight-shaped groove, namely, the closed-loop sealing air bag is formed by concave arc-shaped parts 2b1 at two ends and straight-shaped parts 2b2 at two opposite sides. The closed-loop sealing air bag can be fixed in the half sleeve body through screws by the outer protruding pieces arranged at two ends and/or two sides of the closed-loop sealing air bag, and can also be glued or directly placed in the half sleeve body.

When in use, the two closed-loop sealing air bags inflate, press and hermetically surround the broken part of the pipeline in the two half sleeve bodies through the corresponding two half sleeve bodies. The medium fluid with overpressure leakage is collected by the leakage accommodating arc-shaped groove and can be discharged outside through the discharge valve. The rest of the structure and the corresponding method for using the first-aid repair mode in the embodiment can be similar to the embodiment.

In embodiment 3, a universal extension device is disposed between the straight-shaped receiving grooves 9 of the mating connection portions of the two half sleeves, and the universal extension device is correspondingly mated with the receiving grooves in opposite directions.

The universal expansion device comprises an arc-shaped expansion convex edge arranged on the outer side wall surface of the accommodating straight groove 9 of one half sleeve body matched with the connecting part, and a corresponding arc-shaped expansion groove arranged on the outer side wall surface of the accommodating straight groove 9 of the other half sleeve body matched with the connecting part. The rest of the structure and the corresponding operation mode of the present embodiment are similar to the above embodiments.

Example 4 is shown in FIG. 6. The holding sealing device comprises an outer holding tight sealing air bag, the outer holding tight sealing air bag is a fastening device, the fastening device is arranged between two open ends of the outer holding tight sealing air bag, and the outer holding tight sealing air bag is connected to the peripheral wall surface of the pipeline in an air-tight surrounding mode through the fastening device. The outer-holding tight air-sealing bag is a cuff-type outer-holding tight air-sealing bag 31, and the cuff-type outer-holding tight air-sealing bag 31 is unfolded to be in a flat-cushion belt shape. A hasp type connecting device is fixedly arranged between two ends of the cuff type outer holding tight sealing air bag 31. When the pipeline sealing device works or is used, the cuff type external holding tight sealing air bag is wrapped at the broken part of the pipeline, the cuff type external holding tight sealing air bag is tightly hooped on the peripheral wall surface of the pipeline through the buckle type connecting device, and the cuff type external holding tight sealing air bag is inflated through the inflating device to form air tight connection on the outer wall surface of the pipeline. The leakage part of the pipeline can be blocked. The buckle type connecting device comprises a plurality of male buckles 32 and a plurality of corresponding female buckles 33 which are distributed and connected at one end of the cuff type outer-holding tight air-sealing bag 31. The rest of the structure and the corresponding method for using the first-aid repair mode in the embodiment can be similar to the embodiment.

Claims (3)

1. The utility model provides a section is salvageed to variable pressure formula pipeline, includes the outer hoop adapter sleeve corresponding with corresponding pipeline, outer hoop adapter sleeve includes the double-phase half cover body that corresponds, and characterized by still includes omnipotent sealing device, omnipotent sealing device sets up respectively in two including mutual correspondence two sealed gas of half cover internal face is wrapped in, sealed gas is wrapped in and is equipped with aerating device, and two sealed gas are wrapped in and is connected in pipeline periphery wall through two half cover internal face gas tightness wraps up respectively, sealed gas is wrapped in and is arc or half-circular arc.

2. The pressure-changing pipeline emergency repair joint as claimed in claim 1, wherein the two or one of the corresponding half-casings and the corresponding sealing air bag are provided with corresponding evacuation holes, and the evacuation holes of the sealing air bag are hermetically isolated from the sealing air bag.

3. The pressure-changing pipeline emergency repair joint as claimed in claim 2, wherein the drain hole is connected to a drain valve through a quick-connect device.

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