Gas leakage prevention device

Abstract

The utility model discloses a gas leakage prevention device which comprises a conveying pipe, one end of the conveying pipe is provided with a connecting pipe and an inserting ring, one end of the conveying pipe is provided with an inserting groove, the conveying pipe is provided with an installing pipe, the connecting pipe is provided with an installing sleeve and an annular air bag, and connecting sleeves are symmetrically arranged between the installing pipe and the installing sleeve. A detection box and a detection box are arranged on the connecting pipe, a detection block and a detection rod are slidably arranged in the detection box, a detection plate and a connecting rod are arranged at the top of the detection rod, a detection pipe and a detection air bag are arranged at the top of the detection box, and a piston plate is arranged on the connecting rod. And the detection block drives the detection rod and the detection plate to move, the detection plate drives the piston plate through the connecting rod to extrude gas in the detection pipe into the detection airbag, and the state of gas pressure in the pipeline is judged through the size of the detection airbag.

Description

Technical Field

[0001] The utility model relates to the technical field of gas transportation, and more specifically, it relates to a gas leakage prevention device. Background Art

[0002] In the industrial field, gas transportation pipelines are used to supply gases required in the manufacturing process, such as oxygen, nitrogen, hydrogen, etc. These gases play important roles in fields such as chemical industry, metal processing, and electronic manufacturing. The construction and operation of gas transportation pipelines need to consider various factors such as technology, economy, environment, and society to ensure their safe, reliable, and efficient operation.

[0003] When the existing gas pipelines are in use, the air pressure state cannot be displayed, causing inconvenience in use. Moreover, not only the air pressure situation, but also the pressure relief effect is poor and the sealing performance is not good, affecting the use. At the same time, the connection between gas pipelines is a key part of the gas transportation system, and the connection stability and sealing performance are directly related to the safety and efficiency of gas transportation. Summary of the Utility Model

[0004] (1) Technical Problems to be Solved

[0005] Aiming at the problems existing in the prior art, the utility model provides a gas leakage prevention device to solve the technical problem that the air pressure of the gas pipeline cannot be displayed mentioned in the background art.

[0006] (2) Technical Solutions

[0007] To achieve the above object, the utility model provides the following technical solution: A gas leakage prevention device includes a conveying pipe. One end of the conveying pipe is provided with a connecting pipe. One end of the connecting pipe is provided with an insertion ring. One end of the conveying pipe is provided with an insertion groove. An installation pipe is arranged on the conveying pipe. An installation sleeve is arranged on the connecting pipe. An annular airbag is sleeved between the installation sleeve and the installation pipe. Connecting sleeves are symmetrically arranged between the installation pipe and the installation sleeve. A detection box and a detection box are arranged on the connecting pipe. A detection block is slidably arranged in the detection box. The bottom of the detection block is inclined. A detection rod is arranged at the top of the detection block. A detection plate is arranged at the top of the detection rod. A connecting rod is arranged on one side of the detection plate. A detection pipe is arranged at the top of the detection box. A piston plate is arranged in the detection pipe for the connecting rod. A detection airbag is communicated with the top of the detection pipe.

[0008] The utility model is further arranged such that the connecting sleeve is provided with an insertion rod, and insertion holes for cooperating with the insertion rod are arranged on the installation pipe and the installation sleeve, which is convenient for fixing the positions of the connecting sleeve, the installation pipe, and the installation sleeve.

[0009] The present utility model is further configured such that a connection plate is provided on the connection sleeve, and a connection bolt is provided on the connection plate, which facilitates the connection of the connection sleeve.

[0010] The present utility model is further configured such that a sealing ring is provided between the insertion ring and the insertion groove, which improves the sealing performance between the delivery pipe and the connection pipe.

[0011] The present utility model is further configured such that an air inlet cavity is provided in the detection block, a sliding plate is slidably provided in the air inlet cavity at the bottom of the detection rod, and a communication cavity and a communication hole are provided in the detection pipe, which facilitates exhaust and improves the safety of the gas transmission pipeline.

[0012] The present utility model is further configured such that a sliding rod is provided on the sliding plate, an extrusion plate is provided on the sliding rod, and an extrusion spring is provided between the extrusion plate and the detection block, which facilitates the extrusion and movement of the position of the sliding plate.

[0013] The present utility model is further configured such that a return spring is provided between the detection box and the detection block, which facilitates the reset of the detection block.

[0014] The present utility model is further configured such that an exhaust valve is provided on the detection box to control whether to exhaust.

[0015] (III) Advantageous Effects

[0016] Compared with the prior art, the present utility model provides a gas leakage prevention device, which has the following advantageous effects:

[0017] 1. Between the connection pipe and the ventilation pipe, through the cooperation of the insertion ring and the insertion groove, and the cooperation of the installation pipe, the installation sleeve and the annular airbag, the sealing performance of the connection between the connection pipe and the ventilation pipe is improved. By providing the connection sleeve, the installation pipe and the installation sleeve are connected and fixed, thereby improving the stability of the connection.

[0018] 2. By moving the detection block in the detection box, driving the detection rod and the detection plate to move, the detection plate drives the piston plate to move in the detection pipe through the connecting rod, and then squeezes the gas in the detection pipe into the detection airbag. The size of the detection airbag is used to judge the gas pressure in the pipeline.

[0019] 3. When the gas pressure is too high, by providing the extrusion plate and the extrusion spring, the sliding plate is separated from the air inlet cavity, and the gas can be exhausted through the communication hole and the communication cavity, which improves the safety of gas transmission and the practicability of the gas transmission pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the cooperation structure of the delivery pipe and the connection pipe in the present utility model;

[0021] Figure 2 This is a schematic cross-sectional structure diagram of the connection between the delivery pipe and the connecting pipe in the present utility model;

[0022] Figure 3 This is a schematic overall structure diagram of the connecting sleeve in the present utility model;

[0023] Figure 4 This is a schematic cross-sectional structure diagram of the connecting pipe in the present utility model;

[0024] Figure 5 is Figure 4 a partially enlarged schematic diagram of the structure of A in

[0025] In the figure: 1, delivery pipe; 2, connecting pipe; 3, insertion ring; 4, insertion groove; 5, installation pipe; 6, installation sleeve; 7, annular airbag; 8, connecting sleeve; 9, detection box; 10, detection box; 11, detection block; 12, detection rod; 13, detection plate; 14, connecting rod; 15, detection pipe; 16, piston plate; 17, detection airbag; 18, insertion rod; 19, insertion hole; 20, connecting plate; 21, connecting bolt; 22, sealing ring; 23, intake cavity; 24, sliding plate; 25, communication cavity; 26, communication hole; 27, sliding rod; 28, extrusion plate; 29, extrusion spring; 30, return spring; 31, exhaust valve. Specific embodiments

[0026] It should be noted that, without conflict, the embodiments in this application and the features in the embodiments can be combined with each other. The present utility model will be described in detail below with reference to the drawings and in conjunction with the embodiments.

[0027] It should be pointed out that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by those of ordinary skill in the technical field to which this application belongs.

[0028] In the present utility model, unless otherwise stated, the orientations such as "upper, lower" are generally in the directions shown in the drawings, or in the vertical, perpendicular or gravitational directions; similarly, for ease of understanding and description, "left, right" are generally left and right as shown in the drawings; "inside, outside" refer to inside and outside the contours of the respective components, but the above orientation terms do not limit the present utility model.

[0029] Please refer to Figures 1-5, a gas leakage prevention device, including a delivery pipe 1, one end of the delivery pipe 1 is provided with a connecting pipe 2, one end of the connecting pipe 2 is provided with an insertion ring 3, one end of the delivery pipe 1 is provided with an insertion groove 4, the delivery pipe 1 is provided with a mounting pipe 5, the connecting pipe 2 is provided with a mounting sleeve 6, an annular airbag 7 is sleeved between the mounting sleeve 6 and the mounting pipe 5, connecting sleeves 8 are symmetrically arranged between the mounting pipe 5 and the mounting sleeve 6, the connecting pipe 2 is provided with a detection box 9 and a detection tank 10, a detection block 11 is slidably arranged in the detection box 9, the bottom of the detection block 11 is inclined, a detection rod 12 is arranged at the top of the detection block 11, a detection plate 13 is arranged at the top of the detection rod 12, a connecting rod 14 is arranged on one side of the detection plate 13, a detection pipe 15 is arranged at the top of the detection tank 10, a piston plate 16 is arranged in the detection pipe 15 for the connecting rod 14, a detection airbag 17 is communicated with the top of the detection pipe 15, an insertion rod 18 is arranged on the connecting sleeve 8, and insertion holes 19 for cooperating with the insertion rod 18 are arranged on the mounting pipe 5 and the mounting sleeve 6, a connecting plate 20 is arranged on the connecting sleeve 8, a connecting bolt 21 is arranged on the connecting plate 20, and a sealing ring 22 is arranged between the insertion ring 3 and the insertion groove 4.

[0030] In this embodiment, when connecting the connecting pipe 2 and the delivery pipe 1, the connecting pipe 2 is inserted into the mounting pipe 5, and the insertion ring 3 is inserted into the insertion groove 4 of the delivery pipe 1. The connection sealing performance between the connecting pipe 2 and the delivery pipe 1 is improved by the sealing ring 22. The mounting sleeve 6 is threadedly connected to the connecting pipe 2, and the annular airbag 7 is arranged between the mounting sleeve 6 and the mounting pipe 5. After the annular airbag 7 is inflated, the connecting sleeves 8 are symmetrically sleeved between the mounting pipe 5 and the mounting sleeve 6. The insertion rod 18 of the connecting sleeve 8 extends into the insertion holes 19 of the mounting pipe 5 and the mounting sleeve 6, and the connecting plate 20 and the connecting sleeve 8 are connected and fixed through the cooperation of the connecting bolt 21 and the nut, improving the connection stability between the delivery pipe 1 and the connecting pipe 2.

[0031] Please refer to Figures 4-5 , as an implementation manner of the detection block 11: an air intake cavity 23 is arranged in the detection block 11, a sliding plate 24 is slidably arranged in the air intake cavity 23 at the bottom of the detection rod 12, a communication cavity 25 and a communication hole 26 are arranged in the detection pipe 15, a sliding rod 27 is arranged on the sliding plate 24, a pressing plate 28 is arranged on the sliding rod 27, a pressing spring 29 is arranged between the pressing plate 28 and the detection block 11, a reset spring 30 is arranged between the detection box 9 and the detection block 11, and an exhaust valve 31 is arranged on the detection tank 10.

[0032] More specifically, when detecting the gas pressure in the gas transmission pipeline, the air pressure drives the detection block 11 to move in the detection box 9. At this time, the sliding plate 24 abuts against the top of the air intake cavity 23. The detection block 11 moves upward under the push of the air pressure, and the detection block 11 moves upward to compress the return spring 30. At this time, gas enters the air intake cavity 23, and also pushes the sliding plate 24 and the detection rod 12 upward. Therefore, the sliding plate 24 always fits against the inner wall of the air intake cavity 23. The detection rod 12 and the detection plate 13 move upward, and the detection plate 13 drives the connecting plate 20 and the piston plate 16 upward. The upward movement of the piston plate 16 drives the gas in the detection tube 15 into the detection airbag 17. By observing the size of the detection airbag 17, the magnitude of the pressure in the gas transmission pipeline is judged. When the air pressure in the gas transmission pipeline is too high, the detection block 11 continues to move upward, and the top of the detection box 9 squeezes the extrusion plate 28 and the extrusion spring 29. The extrusion plate 28 squeezes the sliding rod 27 and the sliding plate 24 to move downward in the air intake cavity 23, so that the sliding plate 24 drives the detection rod 12 to move downward. After the sliding plate 24 leaves the top of the air intake cavity 23, the communication hole 26 and the communication cavity 25 of the detection rod 12 are exposed, and the gas is discharged into the detection box 10 through the communication hole 26 and the communication cavity 25. By controlling the exhaust valve 31, the gas is discharged. When the air pressure in the gas transmission pipeline returns to normal, the sliding plate 24 resets under the action of the extrusion spring 29, and the detection block 11 resets under the action of the return spring 30.

[0033] In summary, when the overall device is in use or operation: when connecting the connecting pipe 2 and the conveying pipe 1, insert the connecting pipe 2 into the installation pipe 5, and insert the insertion ring 3 into the insertion groove 4 of the conveying pipe 1. The sealing ring 22 improves the connection tightness between the connecting pipe 2 and the conveying pipe 1. Thread the installation sleeve 6 on the connecting pipe 2, and arrange the annular airbag 7 between the installation sleeve 6 and the installation pipe 5. After inflating the annular airbag 7, symmetrically sleeved the connecting sleeve 8 between the installation pipe 5 and the installation sleeve 6. The insertion rod 18 of the connecting sleeve 8 extends into the insertion holes 19 of the installation pipe 5 and the installation sleeve 6, and the connecting plate 20 and the connecting sleeve 8 are connected and fixed through the cooperation of the connecting bolt 21 and the nut, which improves the connection stability between the conveying pipe 1 and the connecting pipe 2.

[0034] When detecting the gas pressure inside the gas transmission pipeline, the air pressure drives the detection block 11 to move inside the detection box 9. At this time, the sliding plate 24 abuts against the top of the air intake cavity 23. The detection block 11 moves upward under the push of the air pressure. The detection block 11 moves upward to compress the return spring 30. At this time, gas enters the air intake cavity 23, and also pushes the sliding plate 24 and the detection rod 12 upward. Therefore, the sliding plate 24 always fits against the inner wall of the air intake cavity 23. The detection rod 12 and the detection plate 13 move upward. The detection plate 13 drives the connecting plate 20 and the piston plate 16 upward. The upward movement of the piston plate 16 drives the gas in the detection tube 15 into the detection airbag 17. By observing the size of the detection airbag 17, the size of the pressure inside the gas transmission pipeline is judged. When the air pressure inside the gas transmission pipeline is too high, the detection block 11 continues to move upward. The top of the detection box 9 squeezes the extrusion plate 28 and the extrusion spring 29. The extrusion plate 28 squeezes the sliding rod 27 and the sliding plate 24 to move downward inside the air intake cavity 23, so that the sliding plate 24 drives the detection rod 12 to move downward. After the sliding plate 24 leaves the top of the air intake cavity 23, the communication hole 26 and the communication cavity 25 of the detection rod 12 are exposed. The gas is discharged into the detection box 10 through the communication hole 26 and the communication cavity 25. By controlling the exhaust valve 31, the gas is discharged. When the air pressure inside the gas transmission pipeline returns to normal, the sliding plate 24 resets under the action of the extrusion spring 29, and the detection block 11 resets under the action of the return spring 30.

[0035] In all the above-mentioned solutions, for the connection between two components, welding, the cooperation connection of bolts and nuts, bolt or screw connection, or other well-known connection methods can be selected according to the actual situation, which will not be elaborated one by one here. For those mentioned above that involve fixed connection, welding is preferably considered. Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood 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 gas leakage prevention device, comprising a delivery pipe (1), characterized in that: One end of the delivery pipe (1) is provided with a connecting pipe (2), one end of the connecting pipe (2) is provided with an insertion ring (3), one end of the delivery pipe (1) is provided with an insertion groove (4), the delivery pipe (1) is provided with a mounting pipe (5), the connecting pipe (2) is provided with a mounting sleeve (6), an annular air bag (7) is sleeved between the mounting sleeve (6) and the mounting pipe (5), a connecting sleeve (8) is symmetrically provided between the mounting pipe (5) and the mounting sleeve (6), and a detection box (9) and a detection box are provided on the connecting pipe (2). (10), a detection block (11) is slidably provided in the detection box (9), the bottom of the detection block (11) is inclined, a detection rod (12) is provided on the top of the detection block (11), a detection plate (13) is provided on the top of the detection rod (12), a connecting rod (14) is provided on one side of the detection plate (13), a detection tube (15) is provided on the top of the detection box (10), a piston plate (16) is provided in the detection tube (15) by the connecting rod (14), and a detection air bag (17) is provided at the top of the detection tube (15).

2. A gas leakage prevention device according to claim 1, characterized in that: The connecting sleeve (8) is provided with an insertion rod (18), and the mounting tube (5) and the mounting sleeve (6) are provided with an insertion hole (19) that matches the insertion rod (18).

3. A gas leakage prevention device according to claim 2, characterized in that: The connecting sleeve (8) is provided with a connecting plate (20), and the connecting plate (20) is provided with connecting bolts (21).

4. A gas leakage prevention device according to claim 1, characterized in that: A sealing ring (22) is provided between the insertion ring (3) and the insertion groove (4).

5. A gas leakage prevention device according to claim 1, characterized in that: An air intake cavity (23) is provided in the detection block (11), a sliding plate (24) is slidably provided at the bottom of the detection rod (12) in the air intake cavity (23), and a communication cavity (25) and a communication hole (26) are provided in the detection tube (15).

6. A gas leakage prevention device according to claim 5, characterized in that: The sliding plate (24) is provided with a sliding rod (27), the sliding rod (27) is provided with a pressing plate (28), and a pressing spring (29) is provided between the pressing plate (28) and the detection block (11).

7. A gas leakage prevention device according to claim 1, characterized in that: A return spring (30) is provided between the detection box (9) and the detection block (11).

8. A gas leakage prevention device according to claim 1, characterized in that: The detection box (10) is provided with an exhaust valve (31).

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