Gas pipeline leakage detection device

Abstract

The utility model discloses a fuel gas pipeline leakage detection device, relates to the fuel gas pipeline field, and comprises a fuel gas detection device body and a butt joint, the end portion of the fuel gas detection device body is fixedly connected with a gooseneck feeler lever, the end portion of the gooseneck feeler lever is fixedly provided with a connecting base, and the outer wall of the connecting base is provided with a convex block. A rubber pad is arranged at the end of the connecting base, a buckle is arranged on the outer wall of the butt joint, a sampling head is movably connected to the end of the butt joint, a sealing groove is formed in the inner wall of the sampling head, a filter element is arranged in the connecting base and the butt joint, and a groove is formed in one side of the buckle. According to the utility model, through the arrangement of the buckle groove, the problem that the sampling head is more troublesome to disassemble when the filter element in the sampling head is replaced is solved, when the filter element needs to be replaced, the butt joint is rotated forwards to separate the buckle from the convex block, so that the butt joint is separated from the connecting base to complete the replacement of the filter element, and then the butt joint is rotated reversely to fix the butt joint.

Description

Technical Field

[0001] The utility model relates to the field of gas pipelines, in particular to a gas pipeline leakage detection device. Background Art

[0002] As a clean, efficient and convenient fuel, gas has become a newly developed industry, improving residents' living conditions and reducing environmental pollution. However, due to the characteristics of gas being flammable, explosive, fluid and diffusible, a slight negligence may lead to leakage, which is very likely to cause fire or explosion accidents, causing huge losses to people's lives and property. Therefore, leak detection of gas pipelines is one of the important tasks in daily maintenance and management.

[0003] Existing gas pipeline leak detection devices are usually handheld by staff. By adjusting the angle of the gooseneck probe, gas leak detection is performed on the pipeline to be inspected. Analysis is performed based on the gas indicator to determine whether there is a gas leak. After the test is completed, the filter element inside the sampling head needs to be replaced to avoid affecting the next test.

[0004] However, when using the above method, since the filter element inside the sampling head needs to be replaced regularly, the sampling head needs to be disassembled to replace the filter element. Since the end of the sampling head is connected by a threaded connection, and the sampling head will rust after long-term use, it will be inconvenient to disassemble it. Utility Model Content

[0005] Based on this, the purpose of the present invention is to provide a gas pipeline leakage detection device to solve the technical problems that the sampling head is exposed to the outside for a long time, which easily causes pollution to the filter element and is troublesome to replace.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a gas pipeline leakage detection device, comprising a gas detection device body and a docking joint, wherein a gooseneck probe is fixedly connected to the end of the gas detection device body, a connecting base is fixedly provided at the end of the gooseneck probe, and a protrusion is provided on the outer wall of the connecting base, a rubber pad is provided at the end of the connecting base, a buckle is provided on the outer wall of the docking joint, a sampling head is movably connected to the end of the docking joint, and a sealing groove is provided on the inner wall of the sampling head, a filter element is provided inside the connecting base and the docking joint, and a groove is provided on one side of the buckle.

[0007] By adopting the above technical solution, the problem of the troublesome disassembly of the sampling head when replacing the filter element inside the sampling head is solved. When the filter element needs to be replaced, the joint is rotated forward to separate the buckle and the protrusion, so that the joint and the connecting base are separated to complete the replacement of the filter element. Then the joint is reversed, and the inclined side of the protrusion is engaged into the buckle to fix it. The sealing gasket makes the fixation more firm and will not be easily separated. After use, the sampling head is rotated to move the slider, and the two sets of magnetic blocks set at the end of the slider attract each other, thereby completing the sealing of the sampling head to prevent dust from entering the sampling head and causing pollution to the filter element.

[0008] The present invention is further configured such that one side of the protrusion is provided with an inclined surface.

[0009] By adopting the above technical solution, the buckle of the rotating joint rotates accordingly. Under the action of the inclined surface on one side of the protrusion, the buckle will move upward. Under the action of the elasticity of the rubber pad, a reaction force will be generated, which makes the resistance between the protrusion and the buckle greater, the joint will not shake easily, and the fixing effect is better.

[0010] The utility model is further configured such that a limiting ring is installed at the end of the butt joint, a limiting slide rail is fixed on the inner wall of the limiting ring, and a limiting groove is provided on the outer wall of the sampling head.

[0011] By adopting the above technical solution, the limiting groove on the outer wall of the sampling head will move along the limiting slide rail, thereby avoiding the problem of the sampling head falling during rotation and limiting it.

[0012] The utility model is further configured as follows: two groups of slide blocks are movably installed at the end of the docking joint, and vertical rods are fixed on the tops of the slide blocks; and a solitary groove is opened inside the sampling head.

[0013] By adopting the above technical solution, the arc-shaped groove can enable the vertical rod to move in a direction along the arc-shaped groove, thereby achieving control over the movement of the slider.

[0014] The present invention is further configured such that a sliding groove is provided at the end of the butt joint, and the inner wall of the sliding groove is fitted with the outer wall of the sliding block.

[0015] By adopting the above technical solution, when the slider moves, it will move in the slide groove, so that it will not move in other directions, limiting its position, and the outer wall of the slider fits with the inner wall of the slide groove, so that the sealing effect is better.

[0016] The utility model is further configured such that a first magnetic block is fixed to one side of the sliders of one group, a second magnetic block is fixed to one side of the sliders of the other group, and the second magnetic block is magnetically connected to the first magnetic block.

[0017] By adopting the above technical solution, when the sampling head is sealed, after the slider moves to the middle position, the magnetic force between the first magnetic block and the second magnetic block attracts each other, so that the two groups of sliders will not separate, and the sealing effect is better.

[0018] In summary, the present invention has the following beneficial effects:

[0019] The utility model solves the problem that the filter element inside the sampling head is troublesome to disassemble the sampling head by providing a snap groove. When the filter element needs to be replaced, the docking head is rotated forward to separate the snap and the protrusion, so that the docking head and the connecting base are separated to complete the replacement of the filter element. Then the docking head is reversed, and the inclined side of the protrusion is engaged into the snap to fix it. The sealing gasket makes the fixation more firm and will not be easily separated. After use, the sampling head is rotated to move the slider, and the two groups of magnetic blocks provided at the end of the slider attract each other, thereby completing the sealing of the sampling head and preventing dust from entering the sampling head and polluting the filter element. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is the overall structural diagram of the utility model;

[0021] Figure 2 This is a structural diagram of the rubber pad protrusion of the utility model;

[0022] Figure 3 This is a connection diagram of the connection base butt joint of the utility model;

[0023] Figure 4 This is a structural diagram of the sampling head slide rail of the utility model;

[0024] Figure 5 This is a structural diagram of the magnetic block of the limit slot of the utility model;

[0025] Figure 6 This is a buckle structure diagram of the utility model.

[0026] In the figure: 1. Gas detection device body; 2. Gooseneck probe; 3. Connecting base; 4. Docking joint; 5. Buckle; 6. Bump; 7. Sampling head; 8. Slider; 9. Groove; 10. Arc groove; 11. Sealing groove; 12. Vertical rod; 13. Slide groove; 14. Slide rail; 15. Rubber pad; 16. Filter element; 17. Limiting ring; 18. Limiting groove; 81. First magnetic block; 82. Second magnetic block. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0028] The following describes an embodiment of the present invention based on its overall structure.

[0029] A gas pipeline leak detection device, such as Figure 1 - Figure 5 As shown, it includes a gas detection device body 1 and a docking joint 4, the end of the gas detection device body 1 is fixedly connected to a gooseneck probe rod 2, the end of the gooseneck probe rod 2 is fixedly provided with a connecting base 3, and the outer wall of the connecting base 3 is provided with a protrusion 6, the end of the connecting base 3 is provided with a rubber pad 15, and the outer wall of the docking joint 4 is provided with a buckle 5. The gooseneck probe rod 2 is aligned with the pipeline to be detected, and a gas pipeline leak detection is performed on it. After the detection is completed, the docking joint 4 is rotated forward to separate the buckle 5 and the protrusion 6, and then the filter element 16 is replaced. After the replacement is completed, the docking joint 4 is reversed so that the protrusion 6 is engaged in the groove 9 on the inner wall of the buckle 5. At this time, the rubber pad 15 provided at the end of the connecting base 3 will make the docking joint 4 and the connecting base 3 fixed more firmly, and the docking is completed. The end of the head 4 is movably connected to the sampling head 7, and a sealing groove 11 is provided on the inner wall of the sampling head 7. A filter element 16 is provided inside the connecting base 3 and the docking head 4, and a groove 9 is provided on one side of the buckle 5. After the replacement is completed, the docking head 4 is reversed so that the protrusion 6 is engaged in the groove 9 on the inner wall of the buckle 5. At this time, the rubber pad 15 provided at the end of the connecting base 3 will make the docking head 4 and the connecting base 3 more firmly fixed. Then, the sampling head 7 is twisted, and the sampling head 7 will rotate along the slide rail 14 provided on the inner wall of the limit ring 17, thereby driving the vertical rod 12 to move in the arc groove 10. At this time, the vertical rod 12 drives the slider 8 to move closer to the middle, and the first magnetic block 81 and the second magnetic block 82 provided at the end of the slider 8 make the two groups of sliders 8 attract each other and will not separate easily.

[0030] See also Figure 2 - Figure 6 , a bevel is provided on one side of the protrusion 6. When the docking joint 4 is fixed to the connecting base 3, the buckle 5 is located on one side of the protrusion 6. When the docking joint 4 is rotated, the buckle 5 rotates accordingly. Under the action of the bevel on one side of the protrusion 6, the buckle 5 will move upward, and the docking joint 4 will squeeze the rubber pad. When the buckle 5 rotates to the top of the protrusion 6, a reaction force will be generated under the action of the elasticity of the rubber pad, so that the docking joint 4 will move away from the connecting base 3. The resistance between the protrusion 6 and the buckle 5 is large, so that the docking joint 4 will not shake easily, and the fixing effect is better.

[0031] See also Figure 2 and Figure 5 A limiting ring 17 is installed at the end of the joint 4, and a limiting slide rail 14 is fixed to the inner wall of the limiting ring 17. A limiting groove 18 is provided on the outer wall of the sampling head 7. The limiting slide rail 14 is set so that when the sampling head 7 rotates, the limiting groove 18 on the outer wall of the sampling head 7 will move along the limiting slide rail 14, thereby avoiding the problem of the sampling head 7 falling during rotation and limiting it.

[0032] See also Figure 2 - Figure 5 Two sets of sliders 8 are movably installed at the end of the docking joint 4, and a vertical rod 12 is fixed to the top of the slider 8. A solitary groove 10 is opened inside the sampling head 7. When the sampling head 7 rotates, it will drive the vertical rod 12 to move. The arc groove can make the vertical rod 12 move in a directional manner along the arc groove 10, thereby achieving the control of the movement of the slider 8.

[0033] See also Figure 4 A slide groove 13 is provided at the end of the joint 4, and the inner wall of the slide groove 13 fits with the outer wall of the slider 8. When the slider 8 moves, it will move in the slide groove 13 so that it will not move in other directions, limiting its position, and the outer wall of the slider 8 fits with the inner wall of the slide groove 13, so that the sealing effect is better.

[0034] See also Figure 5 A first magnetic block 81 is fixed to one side of one group of sliders 8, and a second magnetic block 82 is fixed to one side of the other group of sliders 8, and the second magnetic block 82 is magnetically connected to the first magnetic block 81. After use, the sampling head 7 needs to be sealed. After the sliders 8 move to the middle position, the magnetic force between the first magnetic block 81 and the second magnetic block 82 attracts each other, so that the two groups of sliders 8 will not separate, and the sealing effect is better.

[0035] After the gas detection device 1 is taken out, the gooseneck probe 2 is aimed at the pipeline to be detected, and the gas pipeline leak detection is carried out on it. After the detection is completed, the docking joint 4 is rotated forward to separate the buckle 5 and the protrusion 6, and then the filter element 16 is replaced. After the replacement is completed, the docking joint 4 is reversed so that the protrusion 6 is engaged in the groove 9 on the inner wall of the buckle 5. At this time, the rubber pad 15 set at the end of the connecting base 3 will make the docking joint 4 and the connecting base 3 more firmly fixed. Then, the sampling head 7 is twisted, and the sampling head 7 will rotate along the slide rail 14 set on the inner wall of the limit ring 17, thereby driving the vertical rod 12 to move in the arc groove 10. At this time, the vertical rod 12 drives the slider 8 to move closer to the middle, and the first magnetic block 81 and the second magnetic block 82 set at the end of the slider 8 make the two groups of sliders 8 attract each other and will not separate easily, thereby achieving the sealing of the sealing groove 11, preventing dust in the air from entering the interior when the sampling head 7 is placed, and causing pollution to the filter element 16 inside the sampling head 7.

[0036] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not limitations on the present invention. The specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and purpose of the present invention, but as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A gas pipeline leakage detection device, comprising a gas detection device body (1) and a docking joint (4), characterized in that: The end of the gas detection device body (1) is fixedly connected to a gooseneck probe (2), the end of the gooseneck probe (2) is fixedly provided with a connecting base (3), and the outer wall of the connecting base (3) is provided with a protrusion (6), the end of the connecting base (3) is provided with a rubber pad (15), the outer wall of the docking joint (4) is provided with a buckle (5), the end of the docking joint (4) is movably connected to a sampling head (7), and the inner wall of the sampling head (7) is provided with a sealing groove (11), the interior of the connecting base (3) and the docking joint (4) is provided with a filter element (16), and one side of the buckle (5) is provided with a groove (9).

2. A gas pipeline leakage detection device according to claim 1, characterized in that: One side of the protrusion (6) is provided with an inclined surface.

3. A gas pipeline leakage detection device according to claim 1, characterized in that: A limiting ring (17) is installed at the end of the butt joint (4), and a limiting slide rail (14) is fixed on the inner wall of the limiting ring (17), and a limiting groove (18) is provided on the outer wall of the sampling head.

4. A gas pipeline leakage detection device according to claim 1, characterized in that: Two sets of slide blocks (8) are movably mounted on the end of the butt joint (4), and vertical rods (12) are fixed on the tops of the slide blocks (8). An arc-shaped groove (10) is provided inside the sampling head (7).

5. A gas pipeline leakage detection device according to claim 4, characterized in that: A sliding groove (13) is provided at the end of the butt joint (4), and the inner wall of the sliding groove (13) is in contact with the outer wall of the slider (8).

6. A gas pipeline leakage detection device according to claim 4, characterized in that: A first magnetic block (81) is fixed to one side of one group of sliders (8), and a second magnetic block (82) is fixed to one side of another group of sliders (8), and the second magnetic block (82) is magnetically connected to the first magnetic block (81).

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