Flame-retardant anti-falling airbag protection device

Abstract

The utility model discloses a flame-retardant anti-falling air bag protection device which comprises a pipeline and a lifting point arranged above the pipeline, a lifting rope extending into the pipeline is fixedly installed on the lifting point, a lifting belt is arranged at the bottom of the lifting rope, an air bag is arranged in the lifting belt, the bottom of the air bag is of a closed structure, and a compressed air pipe is arranged at the top of the air bag. The flame-retardant anti-falling air bag protection device relates to the technical field of pipeline maintenance, can isolate residual flammable and explosive gas in the pipeline, prevents the flammable and explosive gas from flowing and causing accidents, reduces the injury of maintenance personnel caused by accidental falling in the pipeline at the same time, and improves the safety of the maintenance personnel. And the flame-retardant plate is additionally arranged above the air bag, so that the air bag can be prevented from being damaged by fire operation, and the safety performance is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline maintenance, and specifically relates to a flame-retardant and anti-falling airbag protection device. Background Art

[0002] When maintenance personnel enter the inside of the pulverizing pipeline for maintenance operations, the risk factor is high, and there is a lack of necessary safety protection. For example, it is impossible to completely cut off the flammable and explosive residual gas in the pipeline, the cross-operation has a greater impact, and there is a lack of safety protection when working in the vertical pipeline, etc. Content of the Utility Model

[0003] Aiming at the deficiencies of the prior art, the utility model provides a flame-retardant and anti-falling airbag protection device, which solves the problem of the lack of a protective structure for maintenance personnel when entering the pipeline for operations.

[0004] To achieve the above purposes, the utility model is realized through the following technical solutions: A flame-retardant and anti-falling airbag protection device includes a pipeline and a suspension point arranged above the pipeline. A hoisting rope extending into the pipeline is fixedly installed on the suspension point. A hoisting belt is arranged at the bottom of the hoisting rope. An airbag is arranged inside the hoisting belt. The bottom of the airbag is a closed structure, and a compressed air pipe is arranged at the top. The compressed air pipe extends upward to the outside of the pipeline.

[0005] Preferably, an air valve and a pressure gauge are arranged on the compressed air pipe.

[0006] Preferably, a flame-retardant board connected to the hoisting rope is arranged above the airbag.

[0007] Preferably, the hoisting belt is of a cage-type hoisting belt structure.

[0008] Preferably, the airbag is located 1.5 m below the operation point inside the pipeline.

[0009] Preferably, a connecting nozzle is arranged at the upper end of the airbag. External threads are arranged on the outside of the connecting nozzle. A connecting cap is rotatably sleeved at the lower end of the compressed air pipe. The connecting cap is screwed with the external threads on the outside of the connecting nozzle. A sealing ring abutting against the connecting nozzle is arranged at the bottom of the air compression pipe. A ring groove is arranged along the circumferential direction at the upper end of the connecting nozzle. A sealing ring is arranged in the ring groove. A pressing ring for pressing the sealing ring is arranged on the upper inner wall of the connecting cap. A limiting ring fixedly connected to the compressed air pipe is arranged above the connecting cap.

[0010] Advantageous Effects

[0011] The utility model provides a flame-retardant and anti-falling airbag protection device, which has the following advantageous effects:

[0012] This flame-retardant anti-falling airbag protection device can isolate the flammable and explosive gases remaining in the pipeline, prevent the flammable and explosive gases from flowing around and causing accidents, and at the same time reduce the injuries of maintenance personnel accidentally falling in the pipeline, minimizing the personal safety risks of maintenance personnel. The flame-retardant board added above the airbag can prevent the airbag from being damaged during hot work, further improving the safety performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic structural diagram of the present utility model.

[0014] Figure 2 It is a schematic diagram of the partial structure of the present utility model.

[0015] In the figure: 1, pipeline; 2, suspension point; 3, hoisting rope; 4, hoisting belt; 5, airbag; 6, compressed air pipe; 7, air valve; 8, pressure gauge; 9, flame-retardant board; 10, connecting nozzle; 11, connecting cap; 12, sealing ring; 13, sealing gasket; 14, pressing ring; 15, limiting ring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0016] 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 the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0017] Please refer to Figure 1-2 , the present utility model provides a technical solution: a flame-retardant anti-falling airbag protection device, including a pipeline 1 and a suspension point 2 arranged above the pipeline 1. A hoisting rope 3 extending into the pipeline 1 is fixedly installed on the suspension point 2. A hoisting belt 4 is provided at the bottom of the hoisting rope 3. An airbag 5 is arranged inside the hoisting belt 4. The bottom of the airbag 5 is of a closed structure, and a compressed air pipe 6 is provided at the top. The compressed air pipe 6 extends upward to the outside of the pipeline 1.

[0018] By adopting the above technical solution, after the airbag 5 is inflated and expanded in the pipeline 1, it fills the inner wall of the pipeline 1, thereby blocking the flammable and explosive gases. After the airbag 5 expands in the pipeline 1, together with the cage-type hoisting belt 4, it fully contacts the inner wall of the pipeline 1 to generate friction, can withstand the impact force of accidental falling of personnel, and reduce the falling injury, and can isolate the influence brought by cross-operation.

[0019] In this embodiment, it is further set that an air valve 7 and a pressure gauge 8 are provided on the compressed air pipe 6.

[0020] By adopting the above technical solution, an air valve 7 and a pressure gauge 8 are provided on the compressed air pipe 6 to facilitate the monitoring and control of the pressure of the airbag 5.

[0021] In this embodiment, it is further set that a flame retardant plate 9 connected to the lifting rope 3 is provided above the airbag 5.

[0022] By adopting the above technical solution, the setting of the flame retardant plate 9 can prevent the hot work from damaging the airbag 5.

[0023] In this embodiment, it is further set that the lifting belt 4 has a cage type structure.

[0024] By adopting the above technical solution, the cage type structure can better adapt to different load shapes and sizes, and at the same time provide better stability.

[0025] In this embodiment, it is further set that the airbag 5 is located 1.5 m below the operation point inside the pipeline 1.

[0026] In this embodiment, it is further set that a connection nozzle 10 is provided at the upper end of the airbag 5, an external thread is provided on the outside of the connection nozzle 10, a connection cap 11 is rotatably sleeved at the lower end of the compressed air pipe 6, the connection cap 11 is screwed with the external thread on the outside of the connection nozzle 10, a sealing ring 12 that abuts against the connection nozzle 10 is provided at the bottom of the air compression pipe, a ring groove is provided along the circumferential direction at the upper end of the connection nozzle 10, a sealing ring 13 is provided in the ring groove, a pressing ring 14 for pressing the sealing ring 12 is provided on the upper inner wall of the connection cap 11, and a limiting ring 15 fixedly connected to the compressed air pipe 6 is provided above the connection cap 11.

[0027] By adopting the above technical solution, the connection structure ensures a firm and reliable connection between the compressed air pipe 6 and the airbag 5. The sealing ring 12 and the sealing ring 13 work together to ensure no leakage at the connection.

[0028] Those skilled in the art should connect the components in this case in sequence. For the specific connection and operation sequence, reference should be made to the following working principle. The detailed connection means are well-known techniques in the art. The following mainly introduces the working principle and process.

[0029] Embodiment: The flame retardant and anti-falling airbag 5 is installed about 1.5 meters below the operation point inside the pipeline 1. For the powder making pipeline 1 with an inner diameter of 610 mm, the outer diameter of this airbag 5 is 610 mm, the length is 1 meter, 0.5 MPa compressed air is used as the air source, one end of the airbag 5 is closed, the other end is an inflation connection pipe, the connection pipe is 2 meters long, and an air valve 7 and a pressure gauge 8 are provided at the top. The whole airbag 5 is wrapped and fixed by a cage type lifting belt 4, and one end of the lifting belt 4 is fixed on the lifting point 2;

[0030] When the compressed air pipe 6 is installed, the sealing ring 12 is butted against the connecting nozzle 10. The connecting cap 11 is rotated, and the connecting cap 11 is screwed onto the connecting nozzle 10 through the thread. As the connecting cap 11 moves downward, the pressing ring 14 inside it presses on the sealing ring 12, making the sealing ring 12 press tightly against the connecting nozzle 10. Together with the sealing ring 13 between the connecting nozzle 10 and the sealing ring 12, the sealing effect is ensured.

[0031] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation. The element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the element.

[0032] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A flame-retardant anti-falling airbag protection device, comprising a pipeline (1) and a suspension point (2) arranged above the pipeline (1), characterized in that, A hoisting rope (3) extending into the pipeline (1) is fixedly installed on the hoisting point (2). A hoisting belt (4) is provided at the bottom of the hoisting rope (3). An airbag (5) is arranged inside the hoisting belt (4). The bottom of the airbag (5) is of a closed structure, and a compressed air pipe (6) is provided at the top. The compressed air pipe (6) extends upward to the outside of the pipeline (1).

2. The flame-retardant anti-falling airbag protection device according to claim 1, characterized in that, An air valve (7) and a pressure gauge (8) are provided on the compressed air pipe (6).

3. The flame-retardant anti-falling airbag protection device according to claim 2, characterized in that, A flame retardant board (9) connected to the hoisting rope (3) is provided above the airbag (5).

4. A flame-retardant anti-falling airbag protection device according to claim 2, characterized in that, The hoisting belt (4) is of a squirrel cage type hoisting belt (4) structure.

5. A flame-retardant anti-falling airbag protection device according to claim 1, characterized in that, The airbag (5) is located 1.5 m below the internal operation point of the pipeline (1).

6. The flame-retardant anti-falling airbag protection device according to claim 1, characterized in that A connecting nozzle (10) is provided at the upper end of the airbag (5). External threads are provided on the outside of the connecting nozzle (10). A connecting cap (11) is rotatably sleeved at the lower end of the compressed air pipe (6). The connecting cap (11) is screwed with the external threads on the outside of the connecting nozzle (10). A sealing ring (12) abutting against the connecting nozzle (10) is provided at the bottom of the compressed air pipe (6). A ring groove is provided along the circumferential direction at the upper end of the connecting nozzle (10). A sealing ring (13) is arranged in the ring groove. A pressing ring (14) for pressing the sealing ring (12) is provided on the upper inner wall of the connecting cap (11). A limiting ring (15) fixedly connected to the compressed air pipe (6) is provided above the connecting cap (11).

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