Gas pipeline plugging piece

Abstract

The utility model relates to the technical field of gas pipeline plugging, in particular to a gas pipeline plugging piece which comprises a plugging piece body installed on a gas pipeline body needing to be plugged, a rotating shaft is rotationally connected to the interior of the plugging piece body, and a gear is connected to the rotating shaft in a sleeved mode. A first plugging expansion head is slidably connected to the interior of one end of the plugging piece body through a first limiting structure, a first rack is fixedly connected to the end, away from the gas pipe body, of the first plugging expansion head, and the first rack is connected with the gear in an engaged mode; the interior of the other end of the plugging piece body is slidably connected with a second plugging expansion head through a second limiting structure; when the gear rotates, the first rack and the second rack are driven to respectively push the first plugging expansion head and the second plugging expansion head to move out of the plugging piece body and enter the gas pipe body, so that the gas pipeline is plugged.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of gas pipeline plugging, in particular to a gas pipeline plugging element. BACKGROUND

[0002] In the maintenance, repair or reconstruction of gas pipelines, it is often necessary to plug the gas pipeline to prevent gas leakage and ensure the safety of construction and the surrounding environment.

[0003] The existing gas pipeline plugging method has some deficiencies. The plugging device has a complex structure and is difficult to install and operate, requiring professional technicians to spend a long time on installation and adjustment, thereby affecting construction efficiency. Moreover, the plugging effect of the plugging device is unstable, and gas leakage may occur, which not only wastes gas resources but also may cause safety accidents, posing a threat to personnel and property. In addition, the existing plugging device has poor versatility and is difficult to adapt to gas pipelines of different diameters and specifications.

[0004] For example, the patent CN216479602U discloses a gas pipeline plugging element, which includes an upper base and a lower base arranged vertically, the bottom of the upper base is provided with a first arc-shaped groove, the top of the lower base is provided with a second arc-shaped groove, the first arc-shaped groove and the second arc-shaped groove form a through hole for accommodating the gas pipeline, the top of the upper base is fixedly provided with a sealing cylinder, the cylinder cavity of the sealing cylinder is in communication with the through hole, a sealing plug is threadedly connected in the cylinder cavity of the sealing cylinder, and a sealing cap is arranged on the sealing cylinder. The purpose is to provide a gas pipeline plugging element with simple structure and easy operation. In the above device, after the downstream gas pipeline is completed and the maintenance is finished, the existing plugging device is removed to the outside of the gas pipeline by the mechanical arm of the hole opening machine, then the sealing plug is installed on the mechanical arm of the hole opening machine, the sealing plug is installed in the cylinder cavity of the sealing cylinder by the mechanical arm, and then the exhaust valve on the hole opening machine is used to detect whether the sealing plug is installed in place. If the exhaust valve leaks, it means that the sealing plug is not installed in place, otherwise, if the exhaust valve does not leak, it means that the sealing plug is installed in place. After the sealing plug is installed in place, the hole opening machine and the ball valve can be removed, and then the sealing cap is installed on the sealing cylinder.

[0005] Therefore, it is necessary to design a gas pipeline plugging element that improves the above problems. SUMMARY

[0006] In order to solve the problems of the prior art, the utility model provides a kind of gas pipeline plugging piece, including the plugging piece body being installed at the gas pipe body of needing plugging, rotationally connected with the shaft in the inside of plugging piece body, gear is sleeved on the shaft, the inside of one end of plugging piece body is slidably connected with first plugging expansion head by first limiting structure, the one end of first plugging expansion head away from gas pipe body is fixedly connected with first rack, first rack is engagedly connected with gear, the inside of other end of plugging piece body is slidably connected with second plugging expansion head by second limiting structure, the one end of second plugging expansion head away from gas pipe body is fixedly connected with second rack, second rack is engagedly connected with gear, for by the shaft gear rotation is driven, when gear rotates, it will drive first rack and second rack respectively push first plugging expansion head and second plugging expansion head and move out the inside of plugging piece body, enter the inside of gas pipe body, realize to gas pipeline is plugged;

[0007] Further, the first plugging expansion head and the second plugging expansion head are cylindrical bodies, and the other ends of the first plugging expansion head and the second plugging expansion head are tapered bodies with diameters gradually decreasing, for adapting to gas pipelines with different diameters.

[0008] Further, the first limiting structure and the second limiting structure each include a limiting rod installed on the inside of the plugging piece body, a plurality of sliding blocks are penetrated through the limiting rod, the limiting rod is slidably connected with the top of the sliding block, and the bottom of the sliding block is connected with the outside of the first plugging expansion head and the second plugging expansion head, for ensuring the stability of the sliding of the first plugging expansion head and the second plugging expansion head.

[0009] Further, the one end of the shaft extending out of the plugging piece body is connected with a rotating ring, for driving the shaft to rotate in the inside of the plugging piece body by rotating the rotating ring.

[0010] Further, the plugging piece body is provided with a connecting piece outside, for installing the plugging piece body at the gas pipe body of needing plugging.

[0011] Further, the connecting piece includes an upper mounting ring and a lower mounting ring located outside the two ends of the plugging piece body, the upper mounting ring and the lower mounting ring are oppositely arranged, the two side extending ends of the upper mounting ring are connected with an upper mounting plate, the two side extending ends of the lower mounting ring are connected with a lower mounting plate, a plurality of mounting holes are formed in the upper mounting plate and the lower mounting plate in a corresponding manner, and the upper mounting ring and the lower mounting ring are connected by bolts.

[0012] The utility model has the advantages that:

[0013] (1) The utility model gas pipeline plugging piece, through being provided with pivot, gear, first plugging inflation head, first rack, second plugging inflation head, second rack, manual rotation swivel, drive pivot rotation in the inside of plugging piece body through swivel, drive gear rotation through pivot, when gear rotates, will drive first rack and second rack respectively push first plugging inflation head and second plugging inflation head and move out the inside of plugging piece body, enter the inside of gas pipe body, after first plugging inflation head and second plugging inflation head inflation, can be sealed, to realize direct plugging of pipeline pipe orifice, convenient to use,

[0014] (2) The utility model gas pipeline plugging piece, through being provided with upper mounting ring, upper mounting plate, mounting hole, lower mounting ring, lower mounting plate, bolt, the gas pipe body is worn into the inside between upper mounting ring and lower mounting ring, after that, the bolt is rotated into the inside of mounting hole and lower mounting plate in the form of thread, upper mounting ring and lower mounting ring can be fixed on the outside of gas pipe body, and gas pipe body and plugging piece body can be connected with each other, convenient for quick plugging operation. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is whole structure schematic diagram of the utility model;

[0016] Figure 2 It is inside structure schematic diagram of plugging piece of the utility model;

[0017] Figure 3 It is mounting ring structure schematic diagram of the utility model;

[0018] Figure 4 It is the utility model Figure 2 It is the utility model

[0019] In the drawing: 1, plugging piece body; 2, pivot; 3, gear; 4, first plugging inflation head; 5, first rack; 6, second plugging inflation head; 7, second rack; 8, upper mounting ring; 9, upper mounting plate; 10, mounting hole; 11, lower mounting ring; 12, lower mounting plate; 13, bolt; 14, limit rod; 15, sliding block; 16, gas pipe body; 17, swivel. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0021] Utility model 1, please refer to Figures 1-4The utility model provides a kind of gas pipeline plugging piece, including the plugging piece body 1 being installed at the gas pipe body where needing to be plugged, rotatingly connected with the shaft 2 in the inside of plugging piece body 1, the gear 3 is sleeved on the shaft 2, the first plugging expansion head 4 is slidably connected with the inside of one end of plugging piece body 1 by first limiting structure, the first plugging expansion head 4 is fixedly connected with the first rack 5 at the end away from gas pipe body 16, first rack 5 is engagedly connected with gear 3, the second plugging expansion head 6 is slidably connected with the inside of other end of plugging piece body 1 by second limiting structure, the second plugging expansion head 6 is fixedly connected with the second rack 7 at the end away from gas pipe body 16, the second rack 7 is engagedly connected with gear 3, by rotating gear 3, first rack 5 and the second rack 7 are made relative motion, to drive first plugging expansion head 4 and second plugging expansion head 6 close to gas pipe body 16, and the plugging of gas pipeline is carried out;

[0022] Further, the first plugging expansion head 4 and the second plugging expansion head 6 are cylindrical bodies, and the other ends of the first plugging expansion head 4 and the second plugging expansion head 6 are tapered bodies with diameters gradually decreasing, for adapting to gas pipelines with different diameters.

[0023] Further, the first limiting structure and the second limiting structure each include a limiting rod 14 installed on the inside of the plugging piece body 1 on both sides, a plurality of sliding blocks 15 are penetrated through the limiting rod 14, the limiting rod 14 is slidably connected with the top of the sliding block 15, and the bottom of the sliding block 15 is connected with the outside of the first plugging expansion head 4 and the second plugging expansion head 6, respectively, for ensuring the stability of the sliding of the first plugging expansion head 4 and the second plugging expansion head 6 through the limiting rod 14 and the sliding block 15. The limiting rod 14 facilitates the sliding of the sliding block 15, and the sliding block 15 can stabilize the moving track of the first plugging expansion head 4 and the second plugging expansion head 6.

[0024] Further, the end of the shaft 2 extending out of the plugging piece body 1 is connected with a rotating ring 17.

[0025] In the embodiment, the gas pipe body 16 is installed between the upper mounting ring 8 and the lower mounting ring 11, then the rotating ring 17 is manually rotated, the shaft 2 is driven by the rotating ring 17 to rotate in the inside of the plugging piece body 1, the gear 3 is driven by the shaft 2 to rotate, the first rack 5 and the second rack 7 are respectively pushed by the gear 3 to move out of the inside of the plugging piece body 1 and enter the inside of the gas pipe body 16 when the gear 3 rotates, then the first plugging expansion head 4 and the second plugging expansion head 6 are expanded, and the plugging is completed.

[0026] Further, the outside of the plugging piece body 1 is provided with a connecting piece, for installing the plugging piece body 1 at the gas pipe body 16 needing to be plugged.

[0027] Further, the connecting piece includes upper mounting rings 8 and lower mounting rings 11 located outside both ends of the plugging piece body 1, the upper mounting rings 8 and the lower mounting rings 11 are oppositely arranged, upper mounting plates 9 are connected to both sides of the extending end of the upper mounting ring 8, lower mounting plates 12 are connected to both sides of the extending end of the lower mounting ring 11, a plurality of mounting holes 10 are opened in the upper mounting plates 9 and the lower mounting plates 12, and the upper mounting ring 8 and the lower mounting ring 11 are connected through the mounting holes 10 by bolts 13. Wherein, through the cooperation of the upper mounting ring 8, the lower mounting ring 11 and the bolt 13, the plugging piece can be installed at the gas pipe body 16 to be plugged;

[0028] As shown in Embodiment 2, Figures 1-4 the upper mounting ring 8 is fixedly connected with the upper mounting plate 9, a plurality of mounting holes 10 are opened in the inside of the upper mounting plate 9, the lower mounting ring 11 is arranged at both ends of the plugging piece body 1, the lower mounting plate 12 is fixedly connected with the upper surface of the lower mounting ring 11, and the bolt 13 is threadedly connected with the inside of the mounting hole 10 and the lower mounting plate 12.

[0029] In this embodiment, the gas pipe body 16 is inserted into the inside between the upper mounting ring 8 and the lower mounting ring 11, then the bolt 13 is screwed into the inside of the mounting hole 10 and the lower mounting plate 12, so as to fix the upper mounting ring 8 and the lower mounting ring 11 outside the gas pipe body 16, and the gas pipe body 16 and the plugging piece body 1 are connected with each other, which is convenient for quick plugging operation.

[0030] The working principle of this embodiment is as follows: firstly, the gas pipe body 16 is installed between the upper mounting ring 8 and the lower mounting ring 11, then the rotating ring 17 is manually rotated to drive the rotating shaft 2 to rotate in the inside of the plugging piece body 1, the rotating shaft 2 drives the gear 3 to rotate, the first rack 5 and the second rack 7 are respectively pushed by the gear 3 to move out of the inside of the plugging piece body 1 and into the inside of the gas pipe body 16 when the gear 3 rotates, then the first plugging expansion head 4 and the second plugging expansion head 6 are expanded to be plugged, so as to directly plug the pipe opening, which is convenient to use. Secondly, the gas pipe body 16 is inserted into the inside between the upper mounting ring 8 and the lower mounting ring 11, then the bolt 13 is screwed into the inside of the mounting hole 10 and the lower mounting plate 12, so as to fix the upper mounting ring 8 and the lower mounting ring 11 outside the gas pipe body 16, and the gas pipe body 16 and the plugging piece body 1 are connected with each other, which is convenient for quick plugging operation. The limiting rod 14 facilitates the sliding of the sliding block 15, and the sliding block 15 can stabilize the moving track of the first plugging expansion head 4 and the second plugging expansion head 6.

[0031] Specific installation and implementation process:

[0032] (I) Installation process:

[0033] The sealing member body 1 is placed at the gas pipe body 16 to be sealed, with the upper mounting ring 8 and the lower mounting ring 11 located on the upper and lower sides of the gas pipe body 16 respectively. The upper mounting plate 9 is aligned with the lower mounting plate 12, and the mounting hole 10 is aligned. The bolt 13 is passed through the mounting hole 10 and tightened to firmly install the sealing member on the gas pipe body 16.

[0034] (II) Sealing operation:

[0035] The rotating ring 17 is rotated, which drives the rotating shaft 2 to rotate, and the gear 3 on the rotating shaft 2 rotates accordingly. Since the gear 3 is engaged with the first rack 5 and the second rack 7, the rotation of the gear 3 causes the first rack 5 and the second rack 7 to move relatively. The first sealing expansion head 4 driven by the first rack 5 and the second sealing expansion head 6 driven by the second rack 7 slide in the sealing member body 1 and approach the inner wall of the gas pipe body 16. With the movement of the first sealing expansion head 4 and the second sealing expansion head 6, they gradually fit closely with the inner wall of the gas pipe body 16, achieving sealing of the gas pipeline. In this process, the limiting rod 14 and the sliding block 15 ensure the stability of the sliding of the first sealing expansion head 4 and the second sealing expansion head 6.

[0036] (III) Opening operation:

[0037] The rotating ring 17 is rotated in the opposite direction, causing the gear 3 to rotate in the opposite direction. The first rack 5 and the second rack 7 move in the opposite direction, driving the first sealing expansion head 4 and the second sealing expansion head 6 to slide away from the inner wall of the gas pipe body 16. When the outer wall of the first sealing expansion head 4 and the second sealing expansion head 6 is separated from the inner wall of the gas pipe body 16 by a certain distance, the gas pipeline is restored to unobstructed.

[0038] It is worth noting that the gas pipeline sealing member is easy to operate: by rotating the rotating ring 17, the rotating shaft 2 is driven to rotate by the rotating ring 17 inside the sealing member body 1, and the gear 3 is driven to rotate by the rotating shaft 2. When the gear rotates, it will drive the first rack 5 and the second rack 7 to move out of the inside of the sealing member body 1 and into the inside of the gas pipe body 16, and then the first sealing expansion head 4 and the second sealing expansion head 5 will expand, and the sealing will be completed. Thus, the pipe opening can be directly sealed, and the sealing or opening operation can be completed without the need for complex tools and professional skills, reducing the operation difficulty and improving the construction efficiency.

[0039] The gas pipeline plugging piece has good plugging effect: the first plugging expansion head 4 and the second plugging expansion head 6 can closely adhere to the inner wall of the gas pipeline, effectively prevent gas leakage, and ensure the stability and reliability of plugging.

[0040] The gas pipeline plugging piece has high universality: the plugging piece can be adjusted in position of the first plugging expansion head 4 and the second plugging expansion head 6 to adapt to gas pipelines with different diameters, thereby reducing the purchasing cost and management difficulty of enterprises.

[0041] The gas pipeline plugging piece has stable structure: the limiting structure composed of the limiting rod 14 and the sliding block 15 ensures the stability of the first plugging expansion head 4 and the second plugging expansion head 6 in the sliding process, and avoids affecting the plugging effect due to shaking.

[0042] The above only describes preferred embodiments of the present application, and is not used to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A gas pipeline plug, characterized in that The utility model provides a kind of gas pipeline sealing device, including the sealing member body installed at the gas pipe body needing to be blocked, the inside rotation connection of sealing member body has rotating shaft, the rotating shaft is sleeved with gear, the inside of the one end of sealing member body is slidably connected with first sealing expansion head by first limiting structure, the one end of first sealing expansion head away from gas pipe body is fixedly connected with first rack, first rack is engaged with gear, the inside of the other end of sealing member body is slidably connected with second sealing expansion head by second limiting structure, the one end of second sealing expansion head away from gas pipe body is fixedly connected with second rack, second rack is engaged with gear, for by rotating shaft gear rotation is driven, when gear rotates, it will drive first rack and second rack respectively push first sealing expansion head and second sealing expansion head and move out the inside of sealing member body, enter the inside of gas pipe body, realize to gas pipeline is blocked.

2. A gas pipe plug according to claim 1, characterised in that The first sealing expansion head and the second sealing expansion head are cylindrical bodies, and the other ends of the first sealing expansion head and the second sealing expansion head are tapered bodies with diameters gradually decreasing, for adapting to gas pipelines with different diameters.

3. A gas pipe plug according to claim 2, wherein The first limiting structure and the second limiting structure each include a limiting rod installed inside the sealing member body, a plurality of sliding blocks are penetrated through the limiting rod, the limiting rod is slidably connected with the top of the sliding block, and the bottom of the sliding block is connected with the outside of the first sealing expansion head and the second sealing expansion head, for ensuring the stability of the sliding of the first sealing expansion head and the second sealing expansion head.

4. A gas pipe plug according to claim 1, wherein The one end of the rotating shaft extending out of the sealing member body is connected with a rotating ring, for driving the rotating shaft to rotate inside the sealing member body by rotating the rotating ring.

5. A gas pipe plug according to claim 1, wherein The outside of the sealing member body is provided with a connecting piece, for installing the sealing member body at the gas pipe body needing to be blocked.

6. A gas pipe plug according to claim 5, wherein, The connecting piece includes an upper mounting ring and a lower mounting ring located outside the two ends of the sealing member body, the upper mounting ring and the lower mounting ring are oppositely arranged, the two side extending ends of the upper mounting ring are connected with an upper mounting plate, the two side extending ends of the lower mounting ring are connected with a lower mounting plate, a plurality of mounting holes are formed in the upper mounting plate and the lower mounting plate in a corresponding manner, and the upper mounting ring and the lower mounting ring are connected by bolts.

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