Pipeline under-pressure plugging tool

Abstract

The utility model discloses a pipeline under-pressure plugging tool, and particularly relates to the technical field of pipeline under-pressure plugging, the pipeline under-pressure plugging tool comprises two plugging rings, the outer side of each plugging ring is symmetrically provided with fixing seats, and the two fixing seats corresponding in position are fixedly connected through a plurality of fastening bolts; wherein a winding seat is fixedly installed on the outer side of one fixing seat, a winding roller is rotationally connected into the winding seat, a plugging belt is arranged on the outer side of each winding roller, and connecting plates are fixedly installed on the two sides of the other end of each plugging belt. The winding roller can be rotated to enable a relative ring formed by the plugging belt to be tightly attached to the pipeline, so that the leakage position of the pipeline is plugged, meanwhile, the pipeline plugging device can adapt to pipelines with different diameters and lengths, meanwhile, the air bag on the inner side of the plugging ring can be expanded to extrude the plugging belt, the sealing effect is further improved, and plugging of the leakage position of the pipeline is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline pressure - retaining plugging, and more specifically, the utility model relates to a pipeline pressure - retaining plugging tooling. Background Art

[0002] A pipeline pressure - retaining plugging tooling is a tool and equipment specifically used for plugging operations when the pipeline is in a pressure - retaining operation state. Its function is that when there is a leakage in the pipeline or when maintenance, renovation, etc. are required, it can effectively plug the pipeline without stopping the transportation of the medium inside the pipeline. It can respond quickly, reducing the economic losses and impacts on production and life caused by pipeline shutdown. Through specific sealing structures and fastening devices, this tooling can closely fit the pipeline, prevent medium leakage, and ensure the safety of operations. It is widely used in fields such as petroleum, natural gas, water supply and drainage, etc., to ensure the stable operation of the pipeline system.

[0003] The existing pipeline pressure - retaining plugging tooling generally uses a clamp for plugging. A clamp matching the outer diameter of the pipeline is manufactured and installed outside the leakage point of the pipeline. The clamp is tightly combined with the pipeline through fastening bolts and other means to achieve the plugging of the leakage point. However, this clamp cannot be used for pipelines with different diameters. When faced with pipelines of different diameters, it is not universal. In practical applications, if there are pipelines with multiple pipe diameters that need to be plugged, multiple clamps of different sizes need to be prepared, which not only increases the cost but also delays the emergency repair time due to the inability to find a clamp of the appropriate size. Summary of the Utility Model

[0004] In order to overcome the above - mentioned defects of the prior art, an embodiment of the utility model provides a pipeline pressure - retaining plugging tooling. The technical problem to be solved by the utility model is that the clamps required for the existing clamp plugging do not have universality and cannot adapt to pipeline diameters of different lengths, thus bringing many inconveniences in practical applications.

[0005] In order to achieve the above object, the utility model adopts the following technical solutions:

[0006] A pipeline pressure - blocking tooling, comprising two blocking rings. Fixed seats are symmetrically installed on the outer sides of each of the blocking rings. Two fixed seats corresponding in position are fixedly connected by a plurality of fastening bolts. A winding seat is fixedly installed on the outer side of one of the fixed seats. A winding roller is rotatably connected in the winding seat. Blocking belts are arranged on the outer sides of the winding rollers. Connecting plates are fixedly installed on both sides of the other end of each blocking belt. A pin is jointly installed on the two connecting plates. A limiting mechanism is installed on the outer side of the winding seat. The winding seat restricts the rotation of the winding roller through the limiting mechanism. A plurality of air bags are installed on the inner side of each blocking ring. A pressure - relief valve is installed on each air bag. An air pump is fixedly installed on the outer side of each blocking ring, and the output end of each air pump is communicated with the corresponding air bag.

[0007] As Figures 1-3 shown, the implementation method is specifically as follows: By setting the blocking rings and fastening bolts, the two blocking rings can form a circle and be installed on the outer side of the pipeline. By setting the blocking belts and winding rollers, the blocking belts can be wound around the outer side of the pipeline. By removing the pin, the space formed by the pin and the connecting plate passes through the blocking belt, and then the pin is reinstalled, so that the blocking belt forms a circle and surrounds the outer side of the pipeline. The winding roller winds the blocking belt, so that the blocking belt is closely attached to the pipeline, thereby realizing blocking. At the same time, each air bag can be inflated through the air pump to make it expand, so as to squeeze the blocking belt and further increase the tightness of the fit between the blocking belt and the pipeline.

[0008] In a preferred implementation method, each connecting plate is slidably connected with the pin, and both ends of the pin penetrate through the corresponding connecting plates and extend outwards. Nuts are threadedly connected to both ends of the pin.

[0009] In a preferred implementation method, the limiting mechanism includes a gear, and the gear is installed at one end of the winding roller. An assembly seat is fixedly installed on the outer side of the winding seat. A pin is elastically slidably connected to the assembly seat. A meshing seat is fixedly installed at one end of the pin, and the meshing seat meshes with the gear.

[0010] In a preferred implementation method, a plurality of tooth roots are fixedly installed on the outer side of the meshing seat, and the plurality of tooth roots mesh with the gear.

[0011] In a preferred implementation method, a baffle is fixedly installed at the end of the pin away from the meshing seat. A spring is jointly installed between the outer side of the baffle and the side surface of the assembly seat.

[0012] In a preferred implementation method, through - holes are opened on both the winding seat and the corresponding blocking ring, and one end of the blocking belt passes through each through - hole and extends to the inner side of the blocking ring.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] 1. By setting devices such as a sealing ring, a sealing belt, a winding roller, a pin, and an adapter plate, the present utility model realizes that by pulling the sealing belt and winding it around the outer side of the pipeline, then removing the pin to enable the adapter plate to pass through the middle of the sealing belt, and reinstalling the pin, so that the sealing belt forms a relative ring, and as the winding roller rotates, the relative ring formed by the sealing belt can be closely attached to the pipeline, thereby sealing the leakage point of the pipeline, and at the same time, it can adapt to pipelines with different diameters and lengths to increase the universality of the device.

[0015] 2. By setting devices such as an airbag and an air pump, the present utility model realizes that air can be injected into the airbag through the air pump, so that the airbag expands, and then squeezes the sealing belt, so that the sealing belt is further closely attached to the pipeline, improving the sealing effect and achieving the purpose of sealing the leakage point of the pipeline.

[0016] In summary, when the present utility model is in use, the operation is simple. The relative ring formed by the sealing belt can be closely attached to the pipeline by rotating the winding roller, thereby sealing the leakage point of the pipeline. At the same time, it can adapt to pipelines with different diameters and lengths. At the same time, the airbag inside the sealing ring can be inflated to squeeze the sealing belt, further improving the sealing effect and achieving the sealing of the leakage point of the pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of a pipeline pressure - tight plugging tooling proposed by the present utility model;

[0018] Figure 2 is a schematic structural diagram of the installation structure of a pressure relief valve of a pipeline pressure - tight plugging tooling proposed by the present utility model;

[0019] Figure 3 is a schematic structural diagram of a limiting mechanism of a pipeline pressure - tight plugging tooling proposed by the present utility model.

[0020] In the figure: 1 sealing ring, 2 fixed seat, 3 fastening bolt, 4 airbag, 5 air pump, 6 winding seat, 7 sealing belt, 8 pressure relief valve, 9 pin, 10 nut, 11 winding roller, 12 gear, 13 assembly seat, 14 meshing seat, 15 pin, 16 spring, 17 baffle, 18 adapter plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0022] Referring to Figures 1-3 , a pipeline pressure plugging tooling, including two plugging rings 1. Fixed seats 2 are symmetrically installed on the outer sides of each plugging ring 1. Two fixed seats 2 with corresponding positions are fixedly connected by a plurality of fastening bolts 3. A winding seat 6 is fixedly installed on the outer side of one of the fixed seats 2. A winding roller 11 is rotatably connected in the winding seat 6. Plugging belts 7 are arranged on the outer sides of the winding roller 11. On both sides of the other end of each plugging belt 7, connection plates 18 are fixedly installed. A pin 9 is jointly installed on the two connection plates 18. A limiting mechanism is installed on the outer side of the winding seat 6. The winding seat 6 restricts the rotation of the winding roller 11 through the limiting mechanism. A plurality of air bags 4 are installed on the inner side of each plugging ring 1. A pressure relief valve 8 is installed on each air bag 4. An air pump 5 is fixedly installed on the outer side of each plugging ring 1, and the output end of each air pump 5 is communicated with the corresponding air bag 4.

[0023] As Figures 1-3 shown, the specific implementation method is as follows: By setting the plugging rings 1 and the fastening bolts 3, the two plugging rings 1 can form a circle and be installed on the outer side of the pipeline. By setting the plugging belts 7 and the winding rollers 11, the plugging belts 7 can be wound around the outer side of the pipeline. By removing the pin 9, the space formed by the pin 9 and the connection plate 18 passes through the plugging belt 7. Then, the pin 9 is reinstalled, and the plugging belt 7 forms a circle and surrounds the outer side of the pipeline. The winding roller 11 winds up the plugging belt 7, so that the plugging belt 7 is closely attached to the pipeline, thereby realizing plugging. At the same time, each air bag 4 can be inflated through the air pump 5 to make it expand, so as to squeeze the plugging belt 7 and further increase the tightness of the plugging belt 7 attached to the pipeline.

[0024] Each connection plate 18 is slidably connected to the pin 9, and both ends of the pin 9 penetrate through the corresponding connection plate 18 and extend outwards. Nuts 10 are threadedly connected to both ends of the pin 9.

[0025] It is worth noting that the pin 9 can slide into and out of the connection plate 18. At the same time, the diameter length of the nut 10 should be greater than the diameter length of the hole on the connection plate 18 to prevent the pin 9 from detaching from the connection plate 18.

[0026] The limiting mechanism includes a gear 12, and the gear 12 is installed at one end of the winding roller 11. An assembly seat 13 is fixedly installed on the outer side of the winding seat 6. A pin 15 is elastically slidably connected to the assembly seat 13. One end of the pin 15 is fixedly installed with an engaging seat 14, and the engaging seat 14 meshes with the gear 12.

[0027] A plurality of tooth roots are fixedly installed on the outer side of the engaging seat 14, and the plurality of tooth roots mesh with the gear 12, so that the winding roller 11 cannot rotate.

[0028] One end of the pin 15 away from the engaging seat 14 is fixedly installed with a baffle 17, and a spring 16 is jointly installed between the outer side of the baffle 17 and the side surface of the assembly seat 13.

[0029] Through the acting force of the spring 16, the tooth roots of the engaging seat 14 can always mesh with the gear 12, so as to limit the winding roller 11.

[0030] Through grooves are provided on both the winding seat 6 and the corresponding plugging ring 1. One end of the plugging belt 7 passes through each through groove and extends to the inner side of the plugging ring 1. The setting of the through groove does not affect the normal movement of the plugging belt 7.

[0031] When the utility model is in use, first, by pulling the baffle 17 outwards, the engaging seat 14 is disengaged from the gear 12, so that the winding roller 11 can rotate normally. Then, one end of the plugging belt 7 is pulled to wind around the outer side of the pipeline, and the clamping pin 9 is removed. The two connecting plates 18 pass through the middle of the plugging belt 7, and the clamping pin 9 is installed on the connecting plates 18 again, so that the plugging belt 7 forms a relative ring. Then, the gear 12 is rotated to drive the winding roller 11 to rotate, so that the plugging belt 7 is tightened. Further, the relative ring formed by the plugging belt 7 is closely attached to the pipeline. When reaching the limit, the baffle 17 is released. At this time, under the acting force of the spring 16, the pin 15 slides to drive the tooth roots on the engaging seat 14 to mesh with the gear 12, so as to limit the winding roller 11.

[0032] Then, another plugging ring 1 is placed on the outer side of the pipeline, and the two plugging rings 1 are fixedly connected through the fixing seat 2 and the fastening bolt 3. Then, each airbag 4 is inflated through the air pump 5, so that the airbag 4 expands. Further, the airbag 4 squeezes the plugging belt 7 to further enhance the tightness between the plugging belt 7 and the pipeline, so as to realize the plugging of the pipeline.

[0033] Only some exemplary embodiments of the present utility model are described by way of illustration. Undoubtedly, for those of ordinary skill in the art, without departing from the spirit and scope of the present utility model, the described embodiments can be modified in various different ways. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the protection scope of the claims of the present utility model.

Claims

1. A pipeline pressure plugging tooling, comprising two plugging rings (1), characterized in that: On the outer side of each of the plugging rings (1), fixing seats (2) are symmetrically installed. Two fixing seats (2) corresponding in position are fixedly connected by a plurality of fastening bolts (3). On the outer side of one of the fixing seats (2), a winding seat (6) is fixedly installed. A winding roller (11) is rotatably connected inside the winding seat (6). Plugging belts (7) are arranged on the outer side of the winding roller (11). On both sides of the other end of each plugging belt (7), connecting plates (18) are fixedly installed. A pin (9) is jointly installed on the two connecting plates (18). A limiting mechanism is installed on the outer side of the winding seat (6). The winding seat (6) restricts the rotation of the winding roller (11) through the limiting mechanism. A plurality of air bags (4) are installed inside each plugging ring (1). A pressure relief valve (8) is installed on each air bag (4). An air pump (5) is fixedly installed on the outer side of each plugging ring (1), and the output end of each air pump (5) is communicated with the corresponding air bag (4).

2. The pipeline pressure-blocking tooling according to claim 1, wherein: Each of the connecting plates (18) is slidably connected with the pin (9), and both ends of the pin (9) penetrate through the corresponding connecting plates (18) and extend outwards. Nuts (10) are threadedly connected to both ends of the pin (9).

3. The pressure plugging tool for pipelines according to claim 2, characterized in that: The limiting mechanism includes a gear (12), and the gear (12) is installed at one end of the winding roller (11). An assembly seat (13) is fixedly installed on the outer side of the winding seat (6). A pin (15) is elastically slidably connected to the assembly seat (13). One end of the pin (15) is fixedly installed with an engaging seat (14), and the engaging seat (14) meshes with the gear (12).

4. The pipeline pressure-blocking tooling according to claim 3, characterized in that: A plurality of tooth roots are fixedly installed on the outer side of the engaging seat (14), and the plurality of tooth roots mesh with the gear (12).

5. The pressure plugging tool for pipelines according to claim 4, characterized in that: A baffle (17) is fixedly installed at the end of the pin (15) away from the engaging seat (14). A spring (16) is jointly installed between the outer side of the baffle (17) and the side surface of the assembly seat (13).

6. The pressure plugging tool for pipelines according to claim 5, wherein: Through grooves are formed in both the winding seat (6) and the corresponding plugging ring (1), and one end of the plugging belt (7) passes through each through groove and extends to the inner side of the plugging ring (1).

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