Pipeline water-carrying operation plugging and drainage device

Abstract

This utility model provides a pipe sealing and drainage device for live water operations. The device includes a sealing gasket, a sliding member, a guide pipe, and a positioning bracket. The guide pipe includes an insertion end for inserting into the pipe to be constructed. The sealing gasket is sleeved near the insertion end on the outside of the guide pipe. The sliding member is slidably connected to the side of the guide pipe away from the insertion end, and a limiting member is provided on its outer side. One end of the positioning bracket is connected to the sealing gasket, and the other end is engaged with the limiting member. The sliding member can move axially along the guide pipe to either retract at least a portion of the sealing gasket into the sliding member or expand the sealing gasket. This utility model allows for new pipe connections or repairs without waiting for the water in the pipe to drain, and is unaffected by water accumulation in the pipe, making it more convenient and faster. By using the sealing gasket and guide pipe, effective sealing of the pipe can be achieved, reducing the impact of pipe pressure on the sealing gasket and ensuring the stability and sealing effect of the device.

Description

Technical Field

[0001] This utility model belongs to the field of pipeline construction technology, and in particular relates to a pipeline sealing and diversion device for live water operation. Background Technology

[0002] As municipal pipe networks age, leaks become increasingly frequent, especially in easily damaged components like valves, requiring timely repair or replacement. If repairs are performed by shutting off the water supply, draining the pipes, it severely disrupts residents' lives and the operation of critical facilities like hospitals and schools, causing significant economic losses. Current technology often uses airbags to plug existing pipes; however, when used for pipes requiring prolonged sealing or operating under high pressure, airbags are ineffective, leaving leaks and preventing welding or heat fusion connections. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides a water-sealing and drainage device and its usage method for pipeline construction. Construction work can be carried out without waiting for the water in the pipeline to be drained, which is convenient to use and easy to control.

[0004] The technical solution adopted by this utility model is: a pipe sealing and diversion device for live water operation, including a sealing gasket, a sliding member, a guide pipe, and a positioning bracket; the guide pipe includes an insertion end for extending into the inside of the pipe to be constructed, the sealing gasket is sleeved on the outside of the guide pipe near the insertion end, the sliding member is slidably connected to the side of the guide pipe away from the insertion end, and a limiting member is provided on its outer side; one end of the positioning bracket is connected to the sealing gasket, and the other end is engaged with the limiting member; the sliding member can move axially along the guide pipe to at least partially retract the sealing gasket to the inside of the sliding member or to unfold the sealing gasket.

[0005] Furthermore, the shape of the sealing gasket is adapted to the inner diameter of the pipeline to be constructed, and when the sealing gasket is unfolded, its outer edge abuts against the pipeline to be constructed.

[0006] Furthermore, the sealing gasket is an umbrella-shaped structure with a set wall thickness, and its opening gradually expands outward in the direction toward the insertion end.

[0007] Furthermore, the sliding element is sleeved on the guide tube.

[0008] Furthermore, the sealing gasket has multiple connecting ears on the side facing the sliding member, and the positioning bracket includes a fixing ring and multiple adjusting screws. The fixing ring is sleeved on the sliding member and is engaged with the limiting member. The fixing ring has a positioning hole, and one end of the adjusting screw is connected to the connecting ear, and the other end passes through the positioning hole and is fixed to the fixing ring by a nut.

[0009] Furthermore, the positioning hole is an elongated hole, the length of which extends radially along the fixing ring.

[0010] Furthermore, the connecting ears are evenly distributed circumferentially around the axis of the sealing gasket.

[0011] Furthermore, the connecting ear is located at the center of the sealing gasket in the axial direction.

[0012] Furthermore, the limiting member is threadedly connected to the sliding member.

[0013] The advantages and positive effects of this utility model are:

[0014] (1) By adopting this application, it is not necessary to wait for the water in the pipe to be drained before new pipe connection or maintenance work can be carried out. It will not be affected by the water in the pipe, making it more convenient and faster.

[0015] (2) By setting up a sealing gasket and a diversion pipe, the pipeline can be effectively sealed to prevent water accumulation in the pipeline from affecting the work area; at the same time, the water accumulation is discharged to the outside of the pipeline through the diversion pipe, which reduces the impact of pipeline pressure on the sealing gasket and ensures the stability and sealing effect of the device.

[0016] (3) By setting up sliding parts and positioning brackets, the sealing gasket can be switched between the retracted and unfolded states according to the usage requirements, which is convenient and easy to control; by designing the sealing gasket as an umbrella structure, it can fully cover and tightly fit the inner wall of the pipe in the unfolded state, and the force is more uniform, ensuring the stability of the seal. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a specific embodiment of the present utility model;

[0018] Figure 2 This is a schematic diagram of the sealing gasket structure of a specific embodiment of this utility model;

[0019] Figure 3 This is a schematic diagram of the fixing ring structure of a specific embodiment of this utility model.

[0020] In the picture:

[0021] 1. Sealing gasket; 2. Connecting lug; 3. Adjusting screw; 4. Valve; 5. Limiting component; 6. Fixing ring; 7. Nut; 8. Sliding component; 9. Guide pipe; 10. Pipeline to be constructed. Detailed Implementation

[0022] The embodiments of this utility model will now be described with reference to the accompanying drawings.

[0023] like Figure 1 As shown in the figure, this utility model embodiment proposes a pipe sealing and diversion device for water-bearing operations, including a sealing gasket 1, a sliding member 8, a guide pipe 9, and a positioning bracket; the guide pipe 9 includes an insertion end for extending into the inside of the pipe 10 to be constructed, the sealing gasket 1 is sleeved on the outside of the guide pipe 9 near the insertion end, the sliding member 8 is slidably connected to the side of the guide pipe 9 away from the insertion end, and a limiting member 5 is provided on its outside; one end of the positioning bracket is connected to the sealing gasket 1, and the other end is engaged with the limiting member 5; the sliding member 8 can move axially along the guide pipe 9 to retract at least part of the sealing gasket 1 to the inside of the sliding member 8 or to unfold the sealing gasket 1. The proposed pipeline 10 has a port. The outer diameter of the guide pipe 9 is smaller than the inner diameter of the proposed pipeline 10. One end of the guide pipe 9 is an insertion end, which can be inserted into the interior of the proposed pipeline 10 through the port to drain the accumulated water inside the proposed pipeline 10 to the outside. The sealing gasket 1 is set on the outside of the guide pipe 9 to fill the gap between the inner wall of the proposed pipeline 10 and the guide pipe 9, forming a good sealing effect. This ensures that the accumulated water inside the proposed pipeline 10 can only flow to the outside through the guide pipe 9. This arrangement provides conditions for maintenance or replacement work to be carried out at the port of the proposed pipeline 10 without being affected by the accumulated water inside the proposed pipeline 10. On the other hand, after the accumulated water flows out through the guide pipe 9, the water pressure inside the proposed pipeline 10 is reduced. This ensures that the sealing gasket 1 performs its sealing function. The positioning bracket connects the sealing gasket 1 and the sliding member 8, and can control the position of the sliding member 8 on the guide pipe 9 as needed, thereby adjusting the relative position between the sealing gasket 1 and the sliding member 8. This allows the sealing gasket 1 to be retracted into the inside of the sliding member 8 or unfolded. Specifically, when the guide pipe and the sealing gasket 1 need to be inserted into the pipeline 10 to be constructed, the sealing gasket 1 is retracted by the sliding member 8; then, by separating the sliding member 8 from the sealing gasket 1, the sealing gasket 1 unfolds and seals between the guide pipe 9 and the pipeline 10 to be constructed. The sealing gasket 1 itself has good elastic deformation characteristics. When it is retracted by the sliding member 8, its volume can be reduced to a size that matches the inner diameter of the pipeline 10 to be constructed, and when it unfolds, it can form a good sealing effect. Through the above technical solution, the pipeline 10 to be constructed with water can be sealed to facilitate maintenance or replacement work, while draining the water in the pipeline to the outside, reducing the water pressure in the pipeline, and ensuring the overall structural connection is stable.

[0024] Furthermore, in this embodiment, the shape of the sealing gasket 1 is adapted to the inner diameter of the pipeline 10 to be constructed. When the sealing gasket 1 is unfolded, its outer edge abuts against the pipeline 10 to be constructed. Specifically, the sealing gasket 1 is sleeved on the guide pipe 9. Since the sealing gasket 1 itself has good elastic deformation characteristics, its shape and size are adapted to the inner diameter of the pipeline 10 to be constructed through precise design. When the sliding member 8 moves away from the sealing gasket 1, the external force applied to the sealing gasket 1 is eliminated, and the sealing gasket 1 unfolds to its original shape under its own elastic force. In this shape, the outer edge of the sealing gasket 1 abuts against the pipeline 10 to be constructed, so as to achieve effective sealing of the pipeline 10 to be constructed.

[0025] Furthermore, in a preferred embodiment, the sealing gasket 1 is an umbrella-shaped structure with a predetermined wall thickness, its opening gradually expanding outwards towards the insertion end. By designing the sealing gasket 1 as an umbrella-shaped structure, the tightness of the connection between the sealing gasket 1 and the inner wall of the pipe is increased. Compared with the traditional flat sealing gasket 1, the umbrella-shaped structure, in its unfolded state, can fully cover and tightly fit the inner wall of the pipe with its expanding opening; and its opening faces the deep insertion end, causing the water-facing side to protrude outwards from the pipe, making the water pressure inside the pipe more evenly distributed on the sealing gasket 1, thus improving the impact resistance of the sealing gasket 1; the sealing gasket 1 has a predetermined wall thickness, and by setting a reasonable wall thickness, it can provide sufficient strength to withstand the water pressure inside the pipe while ensuring the elasticity of the sealing gasket 1, preventing excessive deformation or breakage and ensuring the stability of the seal. At the same time, the umbrella-shaped structure design also makes it easier to close it using the sliding member 8, ensuring the performance of the sealing gasket 1.

[0026] Furthermore, in this embodiment, the sliding member 8 is sleeved on the guide tube 9. Specifically, the sliding member 8 is a hollow tube with open ends, its inner diameter is larger than the outer diameter of the guide tube 9, and it can cooperate with the sealing gasket 1. When it slides along the guide tube 9 to the sealing gasket 1, it can gather the sealing gasket 1 in the gap between the outer wall of the guide tube 9 and the inner wall of the sliding member 8. In this application, since the sealing gasket 1 has an umbrella-shaped structure, the sealing gasket 1 can be completely gathered in the sliding member 8 or partially gathered in the sliding member 8. Both can change the outer edge size of the sealing gasket 1, as long as its outer edge size can be reduced to be able to extend into the pipeline 10 to be constructed.

[0027] Furthermore, in this embodiment, the sealing gasket 1 is provided with a plurality of connecting ears 2 on the side facing the sliding member 8, and the positioning bracket includes a fixing ring 6 and a plurality of adjusting screws 3. The fixing ring 6 is sleeved on the sliding member 8 and is engaged with the limiting member 5. The fixing ring 6 is provided with a positioning hole, and one end of the adjusting screw 3 is connected to the connecting ear 2, and the other end passes through the positioning hole and is fixed to the fixing ring 6 by a nut 7. Specifically, the smaller end of the sealing gasket 1 is sealed and connected to the guide tube 9. The position of the connecting lug 2 is at a set distance from the connection part. Multiple connecting lugs 2 are arranged around the center of the sealing gasket 1. The number of adjusting screws 3 corresponds one-to-one with the connecting lugs 2, and are used to connect the sealing gasket 1 and the fixing ring 6. The limiting member 5 protrudes from the surface of the sliding member 8 and is used to limit the position of the fixing ring 6. The fixing ring 6 is sleeved on the sliding member 8 and is located on the side of the limiting member 5 away from the sealing gasket 1. The fixing ring 6 has a ring-shaped structure with a central through hole and a positioning hole for connecting the adjusting screw 3. The diameter of the central through hole is adapted to the sliding member 8, so that the fixing ring 6 is blocked by the limiting member 5 against the sliding member 8. The positioning of the moving part 8 connects the positioning bracket and the sliding part 8. By tightening the nut 7, the nut 7 moves axially along the adjusting screw 3, which in turn moves the fixing ring 6 and the sliding part 8 axially along the guide pipe 9. This allows the sliding part 8 to either retract the sealing gasket 1 or move it away from the sealing gasket 1, thus unfolding the sealing gasket 1. Specifically, when the device needs to be inserted into the pipeline 10 to be constructed, the nut 7 controls the sliding part 8 to move closer to the sealing gasket 1 until the sealing gasket 1 is retracted. When the pipeline needs to be blocked, the nut 7 is loosened, allowing the sliding part 8 to move away from the sealing gasket 1, so that the sealing gasket 1 can unfold and return to its original position. Furthermore, the above connection method allows for detachable connections between the sealing gasket 1 and the adjusting screw 3, the adjusting screw 3 and the fixing ring 6, and the fixing ring 6 and the sliding part 8. Different specifications of sealing gasket 1, adjusting screw 3, and fixing ring 6 can be selected for assembly to suit the blocking and drainage needs of pipelines of different specifications.

[0028] It is understood that the position of the fixing ring 6 is preferably set at a certain distance outside the pipeline 10 to be constructed, so as to facilitate the operation of the nut 7 by the worker; when the adjusting screw 3 is fixed on the fixing ring 6, the contour shape formed by its outer edge connection is smaller than the inner diameter of the pipeline 10 to be constructed.

[0029] Furthermore, such as Figure 2 As shown, the positioning hole is an oblong hole, and its length extends radially along the fixing ring 6. With this setting, when the sealing gasket 1 is retracted, the connecting ear 2 moves with the deformation of the sealing gasket 1, causing one end of the adjusting screw 3 to move synchronously. The oblong hole restricts the movement direction of the other end of the adjusting screw 3, so that the other end of the adjusting screw 3 can only move radially towards the guide tube 9, thereby causing the connection end between the adjusting screw 3 and the connecting ear 2 to also move radially. This helps to control the deformation state of the sealing gasket 1 and makes it easier for the sliding member 8 to retract it.

[0030] Furthermore, in the above embodiments, such as Figure 3 As shown, the connecting ear 2 is evenly distributed circumferentially around the axis of the sealing gasket 1. When the sliding member 8 moves towards the sealing gasket 1, the adjusting screw 3 applies a uniform thrust to the sealing gasket 1, causing the sealing gasket 1 to contract away from the sliding member 8, making it easier for the sliding member 8 to gather the sealing gasket 1. At the same time, it makes the deformation of the sealing gasket 1 more uniform and controllable, avoiding excessive local stacking of the sealing gasket 1 inside the sliding member 8, which would affect the movement of the sliding member 8.

[0031] Furthermore, in a preferred embodiment, the connecting ear 2 is located at the center of the sealing gasket 1 along its axial direction. That is, the connecting ear 2 has a predetermined distance from both the sealing gasket 1 and the guide pipe 9, and from the edge of the sealing gasket 1. The connecting ear 2 acts as a limit for the sliding member 8. By reasonably setting the position of the connecting ear 2, the degree of retraction of the sealing gasket 1 can be controlled. While ensuring that the retracted shape of the sealing gasket 1 can be inserted into the intended construction pipe 10, the difficulty of retracting the sealing gasket 1 is reduced compared to retracting the sealing gasket 1 completely into the sliding member 8. Furthermore, when sealing is required, it facilitates the unfolding of the sealing gasket 1 under its own elastic force, or by using external construction force to move the sliding member 8 to unfold it. Simultaneously controlling the distance between the connecting ear 2 and the edge of the sealing gasket 1 fully utilizes the deformation characteristics of the sealing gasket 1, allowing it to deform sufficiently after being squeezed by the pipe, ensuring it fits tightly against the inner wall of the pipe and avoiding interference from the positioning bracket during deformation.

[0032] Furthermore, in a preferred embodiment, the limiting member 5 is threadedly connected to the sliding member 8. Specifically, the outer surface of the sliding member 8 is provided with an external thread, and the limiting member 5 has a ring-shaped structure and is equipped with an internal thread that matches the external thread. This arrangement allows the limiting member 5 to be easily fixed on the sliding member 8, and the position of the limiting member 5 on the sliding member 8 can be adjusted as needed to facilitate worker operation.

[0033] The method of using the pipeline sealing and diversion device in this embodiment includes the following steps:

[0034] S1. Close the pipeline valve 4 upstream of the work site and cut off the pipeline 10 to be constructed at the front end of the work site;

[0035] In this application, the work site is the location where a new pipe needs to be connected or the location where emergency repairs are needed; the front end of the work site is the direction of the incoming water.

[0036] S2. Insert one end of the pipeline sealing and diversion device into the pipeline to be constructed 10 while it is in operation with water.

[0037] Specifically, when not in use, the sealing gasket 1 is in a retracted state, and the pipe sealing and drainage device for water-operated pipeline is manufactured according to the pipe diameter of the pipeline to be constructed 10. Its extension end can be smoothly inserted into the pipeline to be constructed 10. The extension distance can be set as needed, but the fixing ring 6 must be located outside the port of the pipeline to be constructed 10 and maintain a certain distance from the port.

[0038] S3. Tighten the adjusting nut 7 to extend the adjusting screw 3 between the sealing gasket 1 and the fixing ring 6, so that the sealing gasket 1 unfolds and abuts against the inner wall of the pipeline 10 to be constructed.

[0039] Specifically, after loosening the adjusting nut 7, an external force can be applied to the sliding member 8, causing the sliding member 8 to move the fixing ring 6 to the outside of the port until the sealing gasket 1 is fully expanded, forming an effective seal on the pipeline 10 to be constructed.

[0040] S4. Install flanges or valves at the work site;

[0041] Specifically, when the pipeline 10 to be constructed is a galvanized steel pipe, a flange can be directly welded to the pipe end, and then the valve 4 can be installed through the flange; when the pipeline 10 to be constructed is a steel wire reinforced pipe, the valve 4 can be directly heat-fused to the pipe end.

[0042] S5. Remove the pipe sealing and diversion device while it is wet.

[0043] After valve 4 is installed, the pipe sealing and diversion device can be removed while the pipeline is in operation. Then, by closing valve 4 to seal the pipeline 10 to be constructed, the connection between the work area and the new pipeline can be made, or the work area can be repaired.

[0044] The advantages and positive effects of this utility model are:

[0045] (1) By adopting this application, it is not necessary to wait for the water in the pipe to be drained before new pipe connection or repair work can be carried out. It will not be affected by the water in the pipe, making it more convenient and faster.

[0046] (2) By setting up a sealing gasket and a diversion pipe, the pipeline can be effectively sealed to prevent water accumulation in the pipeline from affecting the work area; at the same time, the water accumulation is discharged to the outside of the pipeline through the diversion pipe, which reduces the impact of pipeline pressure on the sealing gasket and ensures the stability and sealing effect of the device.

[0047] (3) By setting up sliding parts and positioning brackets, the sealing gasket can be switched between the retracted and unfolded states according to the usage requirements, which is convenient and easy to control; by designing the sealing gasket as an umbrella structure, it can fully cover and tightly fit the inner wall of the pipe in the unfolded state, and the force is more uniform, ensuring the stability of the seal.

[0048] The embodiments of this utility model have been described in detail above, but the content described is only a preferred embodiment of this utility model and should not be considered as limiting the scope of implementation of this utility model. All equivalent changes and improvements made in accordance with the claims of this utility model should still fall within the patent coverage of this utility model.

Claims

1. A pipe sealing and diversion device for live water operations, characterized in that: The device includes a sealing gasket, a sliding member, a flow guide tube, and a positioning bracket. The flow guide tube includes an insertion end for extending into the interior of the pipeline to be constructed. The sealing gasket is sleeved on the outside of the flow guide tube near the insertion end. The sliding member is slidably connected to the side of the flow guide tube away from the insertion end, and a limiting member is provided on its outer side. One end of the positioning bracket is connected to the sealing gasket, and the other end is engaged with the limiting member. The sliding member can move axially along the flow guide tube to at least partially retract the sealing gasket to the inside of the sliding member or to unfold the sealing gasket.

2. The pipeline sealing and diversion device according to claim 1, characterized in that: The shape of the sealing gasket is adapted to the inner diameter of the pipeline to be constructed, and when the sealing gasket is unfolded, its outer edge abuts against the pipeline to be constructed.

3. The pipeline sealing and diversion device according to claim 2, characterized in that: The sealing gasket is an umbrella-shaped structure with a set wall thickness, and its opening gradually expands outward in the direction toward the insertion end.

4. The pipeline sealing and diversion device according to any one of claims 1-3, characterized in that: The sliding component is sleeved on the guide tube.

5. The pipeline sealing and diversion device according to claim 4, characterized in that: The sealing gasket has multiple connecting ears on the side facing the sliding member. The positioning bracket includes a fixing ring and multiple adjusting screws. The fixing ring is sleeved on the sliding member and is engaged with the limiting member. The fixing ring has a positioning hole. One end of the adjusting screw is connected to the connecting ear, and the other end passes through the positioning hole and is fixed to the fixing ring by a nut.

6. The pipeline sealing and diversion device according to claim 5, characterized in that: The positioning hole is an oblong hole, and its length extends radially along the fixing ring.

7. The pipeline sealing and diversion device according to claim 6, characterized in that: The connecting lugs are evenly distributed circumferentially around the axis of the sealing gasket.

8. The pipeline sealing and diversion device according to claim 7, characterized in that: The connecting ear is located at the center of the sealing gasket in the axial direction.

9. The pipeline sealing and diversion device according to claim 1, characterized in that: The limiting member is threadedly connected to the sliding member.

Images