Gas pipeline construction intermittent period pipe orifice plugging device

Abstract

The utility model relates to the field of gas pipeline plugging, and discloses a gas pipeline construction intermittent pipe orifice plugging device which comprises a plugging pipe, a plugging cylinder is arranged on one side of an inner cavity of the plugging pipe, a plugging head is fixedly connected to one side of the plugging cylinder, and a limiting mechanism is arranged on the other side of the inner cavity of the plugging pipe. According to the gas pipeline construction intermittent period pipe opening plugging device, after the plugging pipe is fixed to the pipe opening position through the limiting mechanism, the adjusting ring is rotated, internal threads and external threads on the outer portion of the plugging pipe are matched, and the plugging pipe is fixed to the pipe opening position through the limiting mechanism, so that the gas pipeline construction intermittent period pipe opening plugging device is achieved. And an adjusting ring is moved to the left side by adjusting the adjusting ring, then L-shaped sliding blocks in four limiting sliding grooves and limiting grooves are matched, a plugging disc and a plugging head are stably driven to move towards a pipe opening for plugging, and the problem that an existing pipeline plugging device is difficult to rapidly and stably plug a gas pipeline is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of gas pipeline plugging, in particular to a pipe opening plugging device during the intermittent period of gas pipeline construction. Background Art

[0002] Gas is a general term for gaseous fuels, which can burn and release heat for use by residents and industrial enterprises. There are many types of gas, mainly natural gas, artificial gas, liquefied petroleum gas, biogas, and coal-to-gas; gas pipelines are pipeline systems used to transport gas, usually made of steel pipes, cast iron pipes or plastic pipes. Gas pipelines are an important part of urban infrastructure, providing necessary gas resources for residents' lives, industrial production and public facilities.

[0003] The patent with publication number CN216555958U discloses a pipe opening plugging device for the intermittent period of gas pipeline construction, which includes a plug, an end cover is fixedly connected to the end face of the plug, a handle is arranged on one side of the end cover, a first movable rod is arranged above the end cover, and a second movable rod is arranged below the end cover. The device is convenient for plugging gas pipelines with different inner diameters. The plug is designed to be truncated cone-shaped with a trapezoidal cross section. Therefore, as the plug moves in the pipeline, the pipe openings with different inner diameters can be plugged. After plugging, the plugging effect can be further improved by knocking the handle inwards.

[0004] However, the device has the problem that after putting the truncated cone plug into the gas pipeline opening, it is necessary to use external tools or heavy objects to knock the handle on the plug to ensure the sealing of the plug. During the knocking process, it is difficult to ensure stable and balanced knocking of the plug. If the knocking is off-center or the knocking force is too great, it is easy to cause damage to the pipeline and the plug structure. After the plug is knocked into the pipe opening, if it is necessary to remove the plug, it takes a lot of force to remove it only by using the handle, which is time-consuming and laborious. Therefore, a pipe opening plugging device for a gas pipeline during construction intervals is proposed to solve the problem that the existing pipeline plugging device is difficult to quickly and stably plug the gas pipeline. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies in the prior art, the utility model provides a pipe opening plugging device for gas pipeline construction intervals, which solves the above-mentioned problems.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a pipe opening plugging device for gas pipeline construction intervals, comprising a plugging tube, a plugging cylinder is provided on one side of the inner cavity of the plugging tube, a plugging head is fixedly connected to one side of the plugging cylinder, a limiting mechanism is provided on the other side of the inner cavity of the plugging tube, four evenly distributed limiting grooves are penetrated through the outer ring of the plugging tube, an L-shaped slider is provided in the inner cavity of the limiting groove, an adjusting ring is provided on one side of the outer ring of the plugging tube, a limiting groove is provided on the inner cavity wall of the adjusting ring, an internal thread is provided on the inner ring wall of the adjusting ring, and an external thread is provided on the outer ring of the plugging tube.

[0009] Furthermore, the plugging head is in a truncated cone shape and is made of rubber material.

[0010] Furthermore, the limiting mechanism includes a limiting ring fixedly connected to one side of the inner cavity of the blocking tube, and the left side of the limiting ring is fixedly connected to a limiting card, and the limiting card is truncated cone-shaped and has a certain elasticity on one side.

[0011] Furthermore, an anti-skid pad is provided at the smaller end of the inner cavity of the limit card, and a guide slope is provided on one side of the anti-skid pad close to the limit ring.

[0012] Furthermore, an arc-shaped splint is symmetrically arranged at a position on the inner cavity wall of the blocking tube, a screw is arranged on the top of the arc-shaped splint, the screw passes through the blocking tube and is threadedly connected, a knob is fixedly connected to the end of the screw, and the screw is rotatably connected to the arc-shaped splint by a bearing.

[0013] Furthermore, the blocking cylinder and the blocking tube are slidably connected, and a plurality of L-shaped sliders are fixedly connected to the outer ring of the blocking cylinder. The outer ring of the L-shaped slider is located in the inner cavity of the limiting groove and is slidably connected.

[0014] Furthermore, the outside of the adjustment ring is fixedly connected to a limiting sleeve, the inner cavity of the limiting sleeve is movably connected to a control rod, and both ends of the control rod are fixedly connected to anti-slip rings.

[0015] (III) Beneficial effects

[0016] 1. The pipe opening plugging device for the intermittent period of gas pipeline construction fixes the plugging pipe at the pipe opening position through the limiting mechanism, rotates the adjusting ring, cooperates with the internal thread and the external thread on the outside of the plugging pipe, so that the adjusting ring moves to the left, and then cooperates with the L-shaped slider in the four limiting slide grooves and the limiting groove to stably drive the plugging disc together with the plugging head to move toward the pipe opening for plugging, thereby solving the problem that the existing pipeline plugging device is difficult to quickly and stably plug the gas pipeline.

[0017] 2. The pipe opening plugging device for the intermittent period of gas pipeline construction initially fixes the plugging pipe on the pipeline through the limit ring, limit card, anti-skid pad and guide slope, and drives the screw through the knob, which cooperates with the bearing to drive the two arc-shaped clamping plates to move toward the pipeline at the same time, so that the gas pipeline is clamped and fixed, and the plugging pipe can be fixed at the pipe opening, realizing the purpose of convenient fixing according to different pipeline sizes, and double limit fixation, thereby improving the firmness of this pipe opening plugging device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is the structural diagram of the utility model;

[0019] Figure 2 This is a schematic diagram of the plugging pipe structure of the utility model;

[0020] Figure 3 This is a cross-sectional view of the structure of the utility model;

[0021] Figure 4 This is a schematic diagram of the structural limit card of the utility model.

[0022] In the figure: 1. Sealing tube; 2. Sealing cylinder; 3. Sealing head; 4. Limiting mechanism; 401. Limiting ring; 402. Limiting card; 403. Anti-skid pad; 404. Guide slope; 405. Arc clamp; 406. Screw; 407. Knob; 408. Bearing; 5. Limiting groove; 6. L-shaped slider; 7. Adjusting ring; 8. Internal thread; 9. External thread; 10. Limiting sleeve; 11. Control rod; 12. Anti-slip ring; 13. Limiting groove. 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: See Figure 1-4 A pipe opening plugging device for the intermittent period of gas pipeline construction comprises a plugging pipe 1, a plugging cylinder 2 is arranged on one side of the inner cavity of the plugging pipe 1, a plugging head 3 is fixedly connected to one side of the plugging cylinder 2, a limiting mechanism 4 is arranged on the other side of the inner cavity of the plugging pipe 1, four evenly distributed limiting slide grooves 5 are penetrated through the outer ring of the plugging pipe 1, an L-shaped slider 6 is arranged in the inner cavity of the limiting slide groove 5, an adjusting ring 7 is arranged on one side of the outer ring of the plugging pipe 1, a limiting groove 13 is arranged on the inner cavity wall of the adjusting ring 7, an internal thread 8 is arranged on the inner ring wall of the adjusting ring 7, and an external thread 9 is arranged on the outer ring of the plugging pipe 1.

[0025] Furthermore, the plugging head 3 is in a truncated cone shape and is made of rubber material.

[0026] Furthermore, the limiting mechanism 4 includes a limiting ring 401 fixedly connected to one side of the inner cavity of the blocking tube 1, and a limiting card 402 is fixedly connected to the left side of the limiting ring 401. The limiting card 402 is truncated cone-shaped and one side has a certain elasticity.

[0027] Furthermore, an anti-skid pad 403 is provided at the end of the smaller inner cavity of the limit card 402, and a guide slope 404 is provided on the side of the anti-skid pad 403 close to the limit ring 401. When installing the blocking tube 1, the blocking tube 1 is directly inserted into the pipe mouth of the gas pipeline, and the guide slope 404 on the anti-skid pad 403 is used to make the limit card 402 on the limit ring 401 stuck on the outside of the pipeline for preliminary limiting fixation, which is convenient for subsequent secondary fixation.

[0028] Furthermore, arc-shaped clamping plates 405 are symmetrically arranged at positions on the inner cavity wall of the sealing tube 1, and a screw 406 is arranged on the top of the arc-shaped clamping plates 405. The screw 406 penetrates the sealing tube 1 and is threadedly connected, and a knob 407 is fixedly connected to the end of the screw 406. The screw 406 is rotatably connected to the arc-shaped clamping plates 405 by means of a bearing 408. The screw 406 is driven by the knob 407, and the bearing 408 is cooperated to drive the two arc-shaped clamping plates 405 to move toward the pipeline at the same time, so that the gas pipeline is clamped and fixed. The sealing tube 1 can be fixed at the pipeline mouth, and the purpose of convenient fixing according to different pipeline sizes is achieved. At the same time, the double limit fixation of the limit card is cooperated to improve the firmness of the pipe mouth sealing device during the intermittent period of gas pipeline construction.

[0029] Furthermore, the sealing cylinder 2 and the sealing tube 1 are slidably connected, and multiple L-shaped sliders 6 are fixedly connected to the outer ring of the sealing cylinder 2. The outer ring of the L-shaped slider 6 is located in the inner cavity of the limiting groove 13 and is slidably connected. Through the L-shaped slider 6 in the limiting groove 5 and the limiting groove 13 in the adjusting ring 7, the sealing cylinder 2 can be moved in conjunction with the sealing head 3 as the adjusting ring 7 moves, thereby facilitating stable sealing of the pipe mouth.

[0030] Furthermore, the outside of the adjusting ring 7 is fixedly connected to a limiting sleeve 10, and the inner cavity of the limiting sleeve 10 is movably connected to a control rod 11, and both ends of the control rod 11 are fixedly connected to anti-slip rings 12. The position of the control rod 11 can be adjusted by using the control rod 11 and the anti-slip ring 12 in the limiting sleeve 10 outside the adjusting ring 7, and then the adjusting ring 7 can be rotated to seal the gas pipeline orifice, and conversely, the sealing head 3 can be moved outside the orifice. By using the lever principle, the adjusting ring 7 can be rotated more labor-savingly, which is convenient for sealing and opening the orifice.

[0031] Working principle: When using this gas pipeline construction intermittent pipe opening plugging device, directly put the plugging tube 1 on the pipe opening of the gas pipeline that needs to be plugged, and use the limiting mechanism 4 to fix the plugging tube 1 at the pipe opening position, and then rotate the adjusting ring 7 to cooperate with the internal thread 8 and the external thread 9 on the outside of the plugging tube 1 to move the adjusting ring 7 to the left, and then cooperate with the L-shaped slider 6 in the four limiting slide grooves 5 and the limiting groove 13 to stably drive the plugging cylinder 2 together with the plugging head 3 to move toward the pipe opening for plugging, thereby solving the problem that the existing pipeline plugging device is difficult to quickly and stably plug the gas pipeline.

[0032] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A gas pipeline construction intermittent pipe opening plugging device, comprising a plugging pipe (1), characterized in that: A sealing cylinder (2) is provided on one side of the inner cavity of the sealing tube (1), a sealing head (3) is fixedly connected to one side of the sealing cylinder (2), a limiting mechanism (4) is provided on the other side of the inner cavity of the sealing tube (1), four evenly distributed limiting grooves (5) are provided through the outer ring of the sealing tube (1), an L-shaped slider (6) is provided in the inner cavity of the limiting groove (5), an adjusting ring (7) is provided on one side of the outer ring of the sealing tube (1), a limiting groove (13) is provided on the inner cavity wall of the adjusting ring (7), an inner ring wall of the adjusting ring (7) is provided with an internal thread (8), and an outer ring of the sealing tube (1) is provided with an external thread (9).

2. A gas pipeline construction intermittent pipe opening plugging device according to claim 1, characterized in that: The plugging head (3) is in the shape of a truncated cone and is made of rubber material.

3. A gas pipeline construction intermittent pipe opening plugging device according to claim 1, characterized in that: The limiting mechanism (4) comprises a limiting ring (401) fixedly connected to one side of the inner cavity of the blocking tube (1), the left side of the limiting ring (401) being fixedly connected to a limiting card (402), the limiting card (402) being truncated cone-shaped and having a certain elasticity on one side.

4. A gas pipeline construction intermittent pipe opening plugging device according to claim 3, characterized in that: An anti-skid pad (403) is provided at the end of the smaller inner cavity of the limiting card (402), and a guide slope (404) is provided on the side of the anti-skid pad (403) close to the limiting ring (401).

5. The device for plugging the pipe opening during the intermittent period of gas pipeline construction according to claim 1 is characterized by: The inner wall of the blocking tube (1) is symmetrically provided with an arc-shaped clamping plate (405), and a screw (406) is provided on the top of the arc-shaped clamping plate (405). The screw (406) passes through the blocking tube (1) and is threadedly connected. The end of the screw (406) is fixedly connected with a knob (407), and the screw (406) is rotatably connected to the arc-shaped clamping plate (405) by means of a bearing (408).

6. A gas pipeline construction intermittent pipe opening plugging device according to claim 1, characterized in that: The blocking cylinder (2) and the blocking tube (1) are slidably connected, and the plurality of L-shaped sliders (6) are fixedly connected to the outer ring of the blocking cylinder (2). The outer ring of the L-shaped slider (6) is located in the inner cavity of the limiting groove (13) and is slidably connected.

7. The device for plugging the pipe opening during the intermittent period of gas pipeline construction according to claim 1 is characterized by: The outside of the adjustment ring (7) is fixedly connected to a limiting sleeve (10), the inner cavity of the limiting sleeve (10) is movably connected to a control rod (11), and both ends of the control rod (11) are fixedly connected to anti-slip rings (12).

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