Simple device for temporarily plugging construction pipe orifice of gas pipeline

Abstract

The utility model relates to the technical field of pipeline construction, and discloses a simple temporary plugging device for a gas pipeline construction pipe orifice, which comprises a sealing bag and an elastic sealing ring connected outside the sealing bag, and a pressing plate and a driving mechanism capable of driving the pressing plate to be close to or far away from a gas pipeline are further arranged on one side of the contraction sealing bag. And a movable connecting block is connected between the pressing plate and the elastic sealing ring. The sealing bag can be automatically driven to be tightened through the elastic sealing ring, meanwhile, the pressing plate can move in a reciprocating mode, and therefore plugging of pipelines of different sizes can be achieved. During use, the sealing bag and the pressing plate can be opened and reset by controlling the gear ring to rotate in a reciprocating mode, and plugging is achieved. The pressing plate extrudes the sealing bag to be attached to the pipeline, so that gas leakage can be prevented, and the sealing bag can be prevented from being burst open by pressure in the pipeline.

Description

Technical Field

[0001] The utility model relates to the field of pipeline construction, in particular to a simple device for temporarily blocking a pipe opening of a gas pipeline construction. Background Art

[0002] Gas transmission pipelines are part of urban infrastructure. On the one hand, when laying gas pipelines, workers need to purge the gas pipelines to clean the inner walls of the gas pipelines and test the pressure-bearing capacity of the pipelines. At this time, one end of the pipeline needs to be blocked and gas needs to be introduced from the other end. On the other hand, with the large-scale laying of pipelines, pipeline failures also occur from time to time. Once the pipeline is abnormally damaged, it needs to be repaired and replaced quickly. At this time, it is also necessary to temporarily block the damaged part of the pipeline or the upstream part of the damaged part to facilitate the construction personnel to repair and replace the damaged part. Therefore, a device that can temporarily block the pipeline and is easy to operate is needed. Utility Model Content

[0003] In order to solve the technical problems of rapid plugging and convenient disassembly and assembly of gas pipelines, the utility model provides a simple device for temporarily plugging a construction pipe opening of a gas pipeline.

[0004] The utility model adopts the following technical solution to achieve: a simple device for temporarily blocking a gas pipeline construction pipe opening, comprising a sealing bag, one side of which is provided with:

[0005] An elastic sealing ring, wherein the elastic sealing ring is fixedly connected to the outside of the sealing bag;

[0006] A movable connection block, the movable connection block being glued to the outside of the elastic sealing ring;

[0007] A pressing plate, the pressing plate being movably connected to one side of the movable connection block;

[0008] A driving mechanism is used to drive the pressure plate to move closer to or away from the gas pipeline.

[0009] Through the above technical solution, the driving mechanism controls the movement of the pressing plate, drives the movable connecting block to pull the elastic sealing ring and the sealing bag apart, and then sleeves the sealing bag on the pipe port. Then the driving mechanism controls the pressing plate and the movable connecting block to move in the opposite direction, and the elastic sealing ring automatically tightens the bag opening of the sealing bag. At the same time, the pressing plate presses on the sealing bag to fix the sealing bag, preventing the sealing bag from falling off due to excessive pressure in the pipe.

[0010] As a further improvement of the above solution, a groove is provided on one side of the pressure plate, a guide rod is fixedly arranged in the groove, one side of the movable connecting block extends into the groove, and is movably sleeved on the outer side of the guide rod.

[0011] As a further improvement of the above solution, a mounting frame is provided on the outer side of the driving mechanism, and the driving mechanism comprises:

[0012] a gear ring, the gear ring being rotatably connected to the interior of the mounting frame;

[0013] A positioning shaft, the mounting frame is rotatably connected with the positioning shaft, an auxiliary gear is mounted on the positioning shaft, and the auxiliary gear is meshed with the gear ring;

[0014] A side rack is fixedly connected to one side of the pressure plate, and the auxiliary gear is fixedly connected to the side rack.

[0015] As a further improvement of the above scheme, the driving mechanism also includes a control rod, which is fixedly connected to one side of the gear ring, one end of the control rod extends out of the mounting frame, an arc-shaped through control hole is opened at a corresponding position of the mounting frame, and a fixing cap is sleeved on the outer side of the control rod.

[0016] Through the above technical solution, the control rod is controlled to move in the control hole, which can drive the gear ring to rotate. When the gear ring rotates, the pressure plate is driven close to or away from the outer wall of the gas pipeline through the cooperation of the auxiliary gear and the side rack.

[0017] As a further improvement of the above solution, a stepped limiting hole is opened on one side of the pressing plate, a limiting block is fixedly connected to the inner wall of the mounting frame, and one end of the limiting block is arranged inside the limiting hole.

[0018] Through the above technical solution, the limiting block and the limiting hole cooperate to limit the pressure plate.

[0019] As a further improvement of the above solution, a reflective strip is fixedly connected to the outer side wall of the mounting frame.

[0020] Through the above technical solution, the reflective strip is convenient for night work, and the temporary blocking device can be more eye-catching.

[0021] As a further improvement of the above solution, a through hole is provided on the side of the mounting frame facing the sealing bag, and the movable connecting block is connected to the pressure plate in the mounting frame through the through hole.

[0022] The above technical solution facilitates the connection between the movable connecting block outside the fixed frame and the pressing plate inside the movable frame.

[0023] Compared with the prior art, the beneficial effects of the present invention are:

[0024] The utility model can automatically drive the sealing bag to tighten through the elastic sealing ring, and the pressure plate can move back and forth, so it can achieve the blocking of pipelines of different sizes. When in use, by controlling the reciprocating rotation of the gear ring, the sealing bag and the pressure plate can be opened and reset to achieve blocking. The pressure plate squeezes the sealing bag to make it fit the pipeline, which can prevent gas leakage and prevent the pressure in the pipeline from flushing the sealing bag open. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the overall structure of the utility model in working state;

[0026] Figure 2 This is a schematic diagram of the overall structure of the utility model from a second viewing angle;

[0027] Figure 3 It is an exploded view of the mounting frame and the driving mechanism of the utility model;

[0028] Figure 4 This is a half-section schematic diagram of the mounting frame of the utility model;

[0029] Figure 5 This is a schematic diagram of the connection relationship between the movable connecting block and the pressing plate of the utility model.

[0030] Explanation of main symbols: 1. Sealing bag; 2. Elastic sealing ring; 3. Active connecting block; 4. Pressure plate; 41. Guide rod; 42. Limit hole; 43. Limit block; 5. Mounting frame; 51. Control hole; 6. Driving mechanism; 61. Gear ring; 62. Positioning shaft; 63. Auxiliary gear; 64. Side rack; 65. Control rod; 66. Fixing cap; 7. Reflective strip. DETAILED DESCRIPTION

[0031] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0032] Please combine Figure 1 - Figure 5 The present embodiment provides a simple device for temporarily plugging a gas pipeline construction pipe opening, including a sealing bag 1 for plugging the pipeline, an elastic sealing ring 2 is fixedly connected to the outer side of the bag opening of the sealing bag 1, the elastic sealing ring 2 can be made of rubber material, and the elastic sealing ring 2 and the sealing bag 1 can be fixed with strong glue.

[0033] When the elastic sealing ring 2 is not pulled by external force, the elastic sealing ring 2 drives the bag opening of the sealing bag 1 to shrink. Based on this, the elastic sealing ring 2 is pulled outward to expand the bag opening of the sealing bag 1, and then it is put on the cut-off part of the pipeline, and then the elastic sealing ring 2 is loosened, and the elastic sealing ring 2 shrinks and automatically fits tightly on the pipe opening.

[0034] In order to prevent the sealing bag 1 from being opened due to excessive pressure in the gas pipeline, a pressing plate 4 capable of pressing the sealing bag 1 is also provided on one side of the sealing bag 1, and the pressing plate 4 can press the sealing bag 1 tightly against the pipeline to prevent it from being opened by the gas in the pipeline.

[0035] In order to conveniently control the pressing plate 4 to be close to or away from the pipe (sealed bag 1 ), a driving mechanism 6 is provided on one side of the pressing plate 4 . In addition, in order to install the driving mechanism 6 , a mounting frame 5 is provided on the outer side of the driving mechanism 6 .

[0036] Specifically, the driving mechanism 6 includes a gear ring 61 , the inner ring of which is provided with gear teeth. The gear ring 61 is integrally and movably engaged with the interior of the mounting frame 5 , and can rotate in an internal groove of the mounting frame 5 .

[0037] In addition, a positioning shaft 62 is rotatably mounted inside the mounting frame 5, and an auxiliary gear 63 is mounted outside the positioning shaft 62, and the auxiliary gear 63 is meshed and connected with the gear ring 61. In order to control the pressing plate 4, a groove is provided on the mounting frame 5, and the pressing plate 4 is arranged in the groove, and a side rack 64 is fixedly connected to the side of the pressing plate 4, and the side rack 64 is also meshed and connected with the auxiliary gear 63. Therefore, when the gear ring 61 rotates, the meshed auxiliary gear 63 is driven to rotate, and the auxiliary gear 63 drives the pressing plate 4 to move through the side rack 64.

[0038] Because the gear ring 61 is installed inside the mounting frame 5, in order to facilitate the control of the rotation of the gear ring 61, an arc-shaped through control hole 51 is opened on one side of the mounting frame 5, and a control rod 65 is fixedly connected to the gear ring 61, and one end of the control rod 65 extends out of the mounting frame 5 through the control hole 51.

[0039] Therefore, by moving the control rod 65, the gear ring 61 can be driven to rotate within a certain angle range. The control rod is provided with threads, and the outer side of the control rod 65 is connected to a fixing cap 66 through threads. When the fixing cap 66 is rotated and the fixing cap 66 and the mounting frame 5 are tightly fitted, the control rod 65 cannot move further, and the gear ring 61 will not rotate anymore.

[0040] As described above, when the gear ring 61 rotates, it can drive the pressing plate 4 to move along the groove direction of the mounting frame 5, close to or away from the gas pipeline. In order to limit the pressing plate 4, a stepped limiting hole 42 is opened on one side of the pressing plate 4, and a limiting block 43 is fixedly connected to the inner wall of the mounting frame 5. One end of the limiting block 43 is set in the limiting hole 42. The limiting block 43 has a limiting effect on the pressing plate 4.

[0041] Considering that the pressure plate 4 is far away from the gas pipeline and the elastic sealing ring 2 is pulled to expand the stroke, the pressure plate 4 is similar to the gas pipeline and the elastic sealing ring 2 is similar to the gas pipeline. Therefore, the elastic sealing ring 2 is still connected to the movable connection block 3 by strong glue. In order to facilitate the connection between the movable connection block 3 and the pressure plate 4, a through hole is opened at the corresponding position of the mounting frame 5. That is, the movable connection block 3 extends into the interior of the mounting frame 5 through the through hole.

[0042] Specifically, a groove is formed on the side of the pressing plate 4 facing the movable connecting block 3, a guide rod 41 is fixedly arranged in the groove, one end of the movable connecting block 3 extends into the groove, and is movably sleeved on the outside of the guide rod 41. The movable connecting block 3 can move along the guide rod 41.

[0043] In addition, in actual use, when the gas pipeline needs to be repaired, it is often necessary to work at night. Some repair and maintenance work also needs to be carried out at night, so in order to facilitate night work, a reflective strip 7 is fixedly connected to the outer wall of the mounting frame 5.

[0044] The implementation process and principle of a simple device for temporarily plugging a gas pipeline construction orifice in the embodiment of the present application are as follows:

[0045] (i) When in use, at the pipe port, firstly, the control rod 65 is moved to rotate the gear ring 61, and the gear ring 61 drives the auxiliary gear 63 to rotate, and the auxiliary gear 63 drives the pressing plate 4 to move away from the center of the mounting frame 5 through the side rack 64, exposing the space in the middle of the mounting frame 5;

[0046] When the pressing plate 4 moves, the elastic sealing ring 2 is pulled outwards through the movable connecting block 3 to open the bag opening of the sealing bag 1 .

[0047] (ii) Put the expanded sealing bag 1 on the pipe opening. Then move the control rod 65 in the opposite direction to control the gear ring 61 to rotate in the opposite direction. When the gear ring 61 rotates in the opposite direction, it will drive the pressing plate 4 to move in the opposite direction and gradually approach the pipe. At the same time, the movable connecting block 3 will also gradually approach the pipe.

[0048] During this process, the elastic sealing ring 2 will shrink, first driving the sealing bag 1 to contact the pipeline, wrapping the pipeline opening from the outside to achieve blocking of the pipeline.

[0049] In addition, the pressing plate 4 continues to move, squeezing the opening of the sealing bag 1 to make it fit tightly against the pipeline. On the one hand, the sealing bag 1 and the pipeline fit more tightly to prevent gas leakage; on the other hand, the sealing bag 1 can be fixed to prevent the pressure in the pipeline from breaking the sealing bag 1.

[0050] The elastic sealing ring 2 can automatically drive the sealing bag 1 to tighten, and the pressing plate 4 can move back and forth, so that pipes of different sizes can be blocked, and the operation process is consistent. Before use, it is necessary to ensure that the elastic sealing ring 2 has not failed due to fatigue and aging. It is necessary to ensure that it can shrink normally.

[0051] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A simple device for temporarily blocking a gas pipeline construction opening, characterized in that: It comprises a sealed bag, one side of which is provided with: An elastic sealing ring, wherein the elastic sealing ring is fixedly connected to the outside of the sealing bag; A movable connection block, the movable connection block being glued to the outside of the elastic sealing ring; A pressing plate, the pressing plate being movably connected to one side of the movable connection block; A driving mechanism is used to drive the pressure plate to move closer to or away from the gas pipeline.

2. The simple device for temporarily plugging a gas pipeline construction opening as claimed in claim 1, characterized in that: A groove is provided on one side of the pressing plate, a guide rod is fixedly arranged in the groove, one side of the movable connecting block extends into the groove and is movably sleeved on the outer side of the guide rod.

3. The simple device for temporarily plugging a gas pipeline construction opening as claimed in claim 1, characterized in that: A mounting frame is arranged on the outer side of the driving mechanism, and the driving mechanism comprises: a gear ring, the gear ring being rotatably connected to the interior of the mounting frame; A positioning shaft, the mounting frame is rotatably connected with the positioning shaft, an auxiliary gear is mounted on the positioning shaft, and the auxiliary gear is meshed with the gear ring; A side rack is fixedly connected to one side of the pressure plate, and the auxiliary gear is fixedly connected to the side rack.

4. The simple device for temporarily plugging a gas pipeline construction opening as claimed in claim 3, characterized in that: The driving mechanism also includes a control rod, which is fixedly connected to one side of the gear ring. One end of the control rod extends out of a mounting frame, and an arc-shaped through control hole is opened at a corresponding position of the mounting frame. A fixing cap is sleeved on the outer side of the control rod.

5. The simple device for temporarily plugging a gas pipeline construction opening as claimed in claim 3, characterized in that: A stepped limiting hole is provided on one side of the pressing plate, a limiting block is fixedly connected to the inner wall of the mounting frame, and one end of the limiting block is arranged inside the limiting hole.

6. The simple device for temporarily plugging a gas pipeline construction opening as claimed in claim 3, characterized in that: A reflective strip is fixedly connected to the outer side wall of the mounting frame.

7. The simple device for temporarily plugging a gas pipeline construction opening as claimed in claim 3, characterized in that: A through hole is provided on one side of the mounting frame facing the sealing bag, and the movable connecting block is connected to the pressing plate in the mounting frame through the through hole.

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