A high-efficiency gas pipeline leakage detection device

Abstract

The present invention discloses a highly efficient gas pipeline leak detection device, comprising a handheld rod and a fixed ring. The fixed ring is divided into a first half-ring and a second half-ring, which together form a complete annular structure. The first and second half-rings are rotatably connected to a connecting block, wherein the connecting block is connected to a fixing structure fixed to one end of the handheld rod. A detector is fixedly mounted on a side of the connecting block away from the handheld rod, and the detector is positioned opposite a gas pipe. The first and second half-rings are sleeved onto the outside of the gas pipe and, away from the rotatable connection with the connecting block, together form an arc-shaped space larger than the diameter of the gas pipe. Advantages of the device include: facilitating the detection of gas leaks, and enabling continued gas use by sealing the leak point after detection, while maintaining the detector's real-time detection function.

Description

Technical Field

[0001] The present invention relates to the technical field of gas detection, and in particular to a high-efficiency gas pipeline leakage detection device. Background Art

[0002] Gas is a general term for gaseous fuels that can burn and release heat for use by urban residents and industrial enterprises. There are many types of gas, mainly natural gas, artificial gas, liquefied petroleum gas and biogas. The use of natural gas pipelines to transport natural gas is a way to transport natural gas in large quantities on land. After long-term use, gas pipelines will experience aging, corrosion and other phenomena. General gas pipeline leak detection equipment is to manually hold the machine along the pipeline for detection.

[0003] In the prior art, leaking pipelines are generally detected through detectors. However, when a household gas pipeline leaks, the disadvantage is that only the location of the pipeline leak can be detected, and the pipeline cannot be sealed to continue using the gas pipeline. Closing the valve of the gas pipeline means that the gas cannot be used anymore and can only be used after the gas company staff completes the repair. This affects family life. Based on this, the present invention designs a method for efficiently detecting gas pipeline leaks, which can continue to use the gas function by repairing the pipeline after detecting the leak. Summary of the Invention

[0004] The purpose of the present invention is to solve the problems in the prior art and to propose a high-efficiency gas pipeline leakage detection device.

[0005] In order to achieve the above-mentioned objectives, the present invention adopts the following technical solutions: a high-efficiency gas pipeline leakage detection device, comprising a handheld rod and a fixed ring, the fixed ring is divided into a first half ring and a second half ring, the first half ring and the second half ring together constitute a complete annular structure, the first half ring and the second half ring are jointly rotatably connected to a connecting block, the connecting block is connected to a fixing structure fixed to one end of the handheld rod, a detector is fixedly provided on the side of the connecting block away from the handheld rod, the detector is directly opposite to the gas pipe, the first half ring and the second half ring are sleeved on the outside of the gas pipe and the two are away from the rotating connection with the connecting block to form an arc space with a size larger than the diameter of the gas pipe.

[0006] In the above-mentioned high-efficiency gas pipeline leakage detection equipment, an extension sleeve is sleeved on the outer side of the hand-held rod, and the extension sleeve is located on the side of the hand-held rod away from the connecting block. The part of the hand-held rod located in the extension sleeve is fixedly connected to the threaded block, and the inner wall of the extension sleeve is provided with a threaded groove connected to the threaded block in a spiral transmission. A battery is embedded in the extension sleeve and a power switch connected to the battery is provided on its outer side wall. The power switch is electrically connected to the detector. A fixed block is fixedly provided on the side of the hand-held rod close to the connecting block, and the fixed block is connected to the connecting block with a disassembly structure.

[0007] In the above-mentioned high-efficiency gas pipeline leakage detection equipment, a semi-annular plate is fixedly connected to both sides of the first semi-ring and the second semi-ring respectively, and the inner part of each semi-annular plate is fixedly connected to a semi-expansion ring. The two semi-expansion rings on one side together form a complete circular structure, and the end of the extension sleeve away from the hand-held rod is rotatably connected to a rotating rod. A hook through hole is opened through the part of the rotating rod outside the extension sleeve, and the part of the rotating rod inside the extension sleeve is fixedly connected to an inflatable structure.

[0008] In the above-mentioned high-efficiency gas pipeline leakage detection equipment, the inflation structure includes three support platforms, one of the support platforms is located on the connecting block, and the remaining two support platforms are fixedly arranged on the first half ring and the second half ring respectively. Each of the support platforms includes a fixed cylinder, and each of the fixed cylinders is sealed and slidably connected with a support rod. Each of the support rods is fixedly provided with a fixing plate at one end outside the fixed cylinder, and the fixing plate is made of rubber material. An air inlet hole is provided at the bottom of each of the fixed cylinders, and multiple air inlet holes are connected together to form an inflation channel, and the inflation channels are respectively opened in the inner walls of the first half ring, the second half ring and the connecting block.

[0009] In the above-mentioned high-efficiency gas pipeline leakage detection equipment, one end of the rotating rod located in the extension sleeve is fixedly connected to a threaded rod, and the threaded rod is threadedly connected to a piston block. An air intake channel is provided through the inner wall of the piston block, and the inner wall of the rotating rod is sealed and fixedly connected to a layered plate. The threaded rod and the layered plate are rotatably connected through a bearing, and an inflation port is provided in the layered plate. A one-way valve is sealed in the air intake channel and the inflation port. An air intake port is provided on the side of the extension sleeve close to the rotating rod, and a spring is sleeved on the outer side of the threaded rod, and the two ends of the spring are respectively connected to the piston block and the layered plate.

[0010] In the above-mentioned high-efficiency gas pipeline leakage detection equipment, a connecting channel is commonly provided in the threaded block, the hand-held rod and the fixed block. The connecting channel is sealed and connected to the inflation channel at one end away from the extension sleeve, and a sealing layer is provided at the connection between the connecting channel and the inflation channel.

[0011] In the above-mentioned high-efficiency gas pipeline leakage detection equipment, the disassembly and assembly structure includes two spring clips fixedly arranged on the fixed block, the two spring clips are symmetrically arranged, and a groove is provided on the side of the connecting block close to the fixed block. The two spring clips are against the two side walls of the groove. The first half ring and the second half ring are respectively provided with locking platforms fixed to each other by bolts and nuts on the side away from the connecting block. The first half ring and the second half ring are rotated with the connecting block through an energized torsion spring, and the energized torsion spring is electrically connected to the power switch through the detector.

[0012] Compared with the existing technology, the advantages of the present invention are:

[0013] 1. The present invention can achieve extension or shortening by connecting the hand-held rod and the extension sleeve, which can facilitate pipeline leak detection and storage after shortening.

[0014] 2. During use, the detector is located on the connecting block. By clamping the first half ring and the second half ring together on the outside of the pipeline, when gas leaks, the gas in that part is preserved, gas loss is reduced, and the accuracy of the detector is improved. When the detector detects gas components, it will automatically power the two conductive torsion springs of the first and second half rings connected by the connecting block, which will cause the two half rings to automatically rotate to a merged state to form a complete ring structure.

[0015] 3. The support platform and the semi-expansion ring are inflated separately through the inflatable structure, so that on the one hand, multiple support platforms are jointly supported on the outer wall of the gas pipeline, so that the complete ring structure composed of the first semi-ring and the second semi-ring is concentrically arranged with the user gas pipeline. On the other hand, the semi-expansion ring is inflated and contacts the outer wall of the gas pipeline, thereby achieving the effect of sealing the complete ring. In this way, the entire leak will be sealed, and the effect of pre-treatment of the leaking part is achieved. The advantage of this is. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic structural diagram of a high-efficiency gas pipeline leakage detection device proposed by the present invention;

[0017] Figure 2 This is an enlarged schematic diagram of part A of a high-efficiency gas pipeline leakage detection device proposed by the present invention;

[0018] Figure 3 This is a cross-sectional view of an extension sleeve in a high-efficiency gas pipeline leakage detection device proposed by the present invention;

[0019] Figure 4 This is a cross-sectional view of a connecting block and a fixing block in a high-efficiency gas pipeline leakage detection device proposed by the present invention.

[0020] In the figure: 1 hand-held rod, 201 first half ring, 202 second half ring, 3 connecting block, 4 detector, 5 gas pipe, 6 extension sleeve, 7 threaded block, 8 power switch, 9 rotating rod, 10 hook through hole, 11 semi-annular plate, 12 fixed block, 13 fixed cylinder, 14 support rod, 15 fixed plate, 16 threaded rod, 17 piston block, 18 air intake channel, 19 layered plate, 20 inflation port, 21 air intake port, 22 spring, 23 connecting channel, 24 spring piece, 25 groove, 26 locking platform, 27 semi-expansion ring, 28 inflation channel. DETAILED DESCRIPTION

[0021] The following examples are for illustrative purposes only and are not intended to limit the scope of the present invention.

[0022] Example

[0023] Reference Figure 1-4 A high-efficiency gas pipeline leakage detection device includes a handheld rod 1 and a fixed ring 2, the fixed ring 2 is divided into a first half ring 201 and a second half ring 202, the first half ring 201 and the second half ring 202 together form a complete annular structure, the first half ring 201 and the second half ring 202 are rotatably connected to a connecting block 3, the connecting block 3 is connected to a fixing structure fixed to one end of the handheld rod 1, a detector 4 is fixedly provided on the side of the connecting block 3 away from the handheld rod 1, and the detector 4 is directly opposite to the gas pipe 5, the first half ring 201 and the second half ring 202 are sleeved on the outside of the gas pipe 5 and the two are away from the rotating connection with the connecting block 3 to form an arc space with a size larger than the diameter of the gas pipe 5.

[0024] The outer side of the hand-held rod 1 is sleeved with an extension sleeve 6, and the extension sleeve 6 is located on the side of the hand-held rod 1 away from the connecting block 3. The part of the hand-held rod 1 located in the extension sleeve 6 is fixedly connected to the threaded block 7. The inner wall of the extension sleeve 6 is provided with a threaded groove that is spirally connected to the threaded block 7. In this way, the threaded block 7 can be moved in the threaded groove by rotation, thereby changing the size of the hand-held rod 1 located in the extension sleeve 6, thereby increasing the extended length of the hand-held rod 1 and achieving the effect of convenient detection. A battery is embedded in the extension sleeve 6 and a power switch 8 connected to the battery is provided on its outer side wall. The power switch 8 is electrically connected to the detector 4. After the switch is turned on, the detector 4 is started to detect the gas. A fixing block 12 is fixedly provided on the side of the hand-held rod 1 close to the connecting block 3. The fixed block 12 is connected to the connecting block 3 with a disassembly structure, and the two are electrically connected through a connecting layer. A semi-annular plate 11 is fixedly connected to both sides of the first half ring 201 and the second half ring 202, and the inner part of each semi-annular plate 11 is fixedly connected to a half expansion ring 27. The two half expansion rings 27 on one side together form a complete circular structure. In this way, the two half expansion rings 27 will expand together after overlapping, which will cause the two half expansion rings 27 to expand together to a state where they are against and sealed against the outer wall of the gas pipeline. The end of the extension sleeve 6 away from the hand-held rod 1 is rotatably connected to the rotating rod 9. The rotating rod 9 is provided with a hook through hole 10 on the part outside the extension sleeve 6 for convenient hanging of the device. The part of the rotating rod 9 inside the extension sleeve 6 is fixedly connected to an inflatable structure.

[0025] The inflatable structure includes three support platforms, one support platform is located on the connecting block 3, and the remaining two support platforms are fixedly arranged on the first half ring 201 and the second half ring 202 respectively. Each support platform includes a fixed cylinder 13, and each fixed cylinder 13 is sealed and slidably connected with a support rod 14. Each support rod 14 is fixedly provided with a fixing plate 15 at one end outside the fixed cylinder 13. The fixing plate 15 is made of rubber material. After the support rod 14 extends out of the fixed cylinder 13, the three support platforms 14 will make one side of each fixing plate 15 contact the gas pipe The outer wall of the channel is offset to achieve the state of keeping the first half ring 201 and the second half ring 202 always coaxially arranged with the gas pipeline. An air inlet hole is opened at the bottom of each fixed cylinder 13. The multiple air inlet holes are connected together to form an air charging channel 28. The air charging channel 28 is respectively opened in the inner wall of the first half ring 201, the second half ring 202 and the connecting block 3. One end of the rotating rod 9 located in the extension sleeve 6 is fixedly connected to the threaded rod 16, and the threaded rod 16 is threadedly connected to the piston block 17. A sealing is provided at the connection between the piston block 17 and the threaded rod 16. layer, thereby preventing gas from escaping from the connection between the piston block 17 and the threaded rod 16. An air inlet channel 18 is provided on the inner wall of the piston block 17. A layered plate 19 is sealed and fixedly connected to the inner wall of the rotating rod 9. The threaded rod 16 and the layered plate 19 are rotatably connected through a bearing. An air filling port 20 is provided in the layered plate 19. A one-way valve is sealed in the air inlet channel 18 and the air filling port 20. An air inlet port 21 is provided on the side of the extension sleeve 6 close to the rotating rod 9. A spring 22 is sleeved on the outer side of the threaded rod 16. The two ends of the spring 22 are respectively connected to the movable The piston block 17 is connected to the layered plate 19. When the rotating rod 9 is rotated, the threaded rod 16 in the extension sleeve 6 is threadedly connected to the piston block 17 to realize the movement of the piston block 17. When the rotating rod 9 is released, the piston block 17 will return to its initial position under the action of the spring. Therefore, when the rotating rod 9 is manually twisted and rotated multiple times, the external gas will enter the inflation channel 28 through the two one-way valves, so that the semi-expansion ring 27 and the support platform are simultaneously subjected to air pressure, and jointly seal the space composed of the two semi-rings.

[0026] A connecting passage 23 is commonly provided in the threaded block 7, the hand-held rod 1 and the fixed block 12. The connecting passage 23 is sealed and connected to the inflation passage 28 at one end away from the extension sleeve 6. A sealing layer is provided at the connection between the connecting passage 23 and the inflation passage 28. The disassembly structure includes two spring pieces 24 fixedly provided on the fixed block 12. The two spring pieces 24 are symmetrically arranged. A groove 25 is provided on the side of the connecting block 3 close to the fixed block 12. The two spring pieces 24 are abutted against the two side walls of the groove 25. In this way, the connecting block 3 and the fixed block 12 can be fixed to each other, so that after the gas pipeline leakage position is detected, the fixed block 12 and the connecting block 3 are separated from each other so that the first half ring 201 and the second half ring 202 are buckled together on the outside of the gas pipeline. The first half ring 201 and the second half ring 202 are respectively provided with a locking platform 26 fixed to each other by bolts and nuts on the side away from the connecting block 3. The first half ring 201 and the second half ring 202 are fixed to the connecting block 3 In terms of the rotation of the energized torsion spring and the connecting block 3, the energized torsion spring is electrically connected to the energized switch 8 through the detector. Through the circuit setting, when the detector 4 detects a higher concentration of gas, the two conductive springs are started, so that the first half ring 201 and the second half ring 202 are rotated and thus buckled together. At this time, the two are sealed by bolts, and the half expansion ring 27 and the support platform are inflated by the rotating rod 9, so that the space inside the first half ring 201 and the second half ring 202 is completely sealed, and multiple support platforms all support the outer wall of the gas pipeline. In this way, the connecting block 3 and the fixed block 12 can be removed from each other, thereby leaving part of the device on the outer wall of the gas pipeline, which plays a role in temporarily dealing with gas pipeline leakage, facilitating normal gas use during the subsequent period of waiting for gas company staff to repair. Through the detector 4, an alarm can be sounded when the gas concentration inside it is high, reminding the operator to close the gas pipeline to avoid safety problems.

[0027] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A high-efficiency gas pipeline leakage detection device, comprising a handheld rod (1) and a fixing ring (2), characterized in that: The fixing ring (2) is divided into a first half ring (201) and a second half ring (202), the first half ring (201) and the second half ring (202) together forming a complete annular structure, the first half ring (201) and the second half ring (202) are rotatably connected to a connecting block (3), the connecting block (3) is connected to a fixing structure fixed to one end of the handheld rod (1), a detector (4) is fixedly provided on a side of the connecting block (3) away from the handheld rod (1), the detector (4) is directly opposite to a gas pipe (5), the first half ring (201) and the second half ring (202) are sleeved on the outside of the gas pipe (5) and the two are away from the rotatable connection with the connecting block (3) to form an arc space with a size larger than the diameter of the gas pipe (5); The outer side of the hand-held rod (1) is sleeved with an extension sleeve (6), and the extension sleeve (6) is located on the side of the hand-held rod (1) away from the connecting block (3). The part of the hand-held rod (1) located in the extension sleeve (6) is fixedly connected to the threaded block (7), and the inner wall of the extension sleeve (6) is provided with a threaded groove connected to the threaded block (7) in a spiral transmission manner. A battery is embedded in the extension sleeve (6) and a power switch (8) connected to the battery is provided on its outer wall. The power switch (8) is electrically connected to the detector (4). A fixed block (12) is fixedly provided on the side of the hand-held rod (1) close to the connecting block (3), and the fixed block (12) is connected to the connecting block (3) with a disassembly structure. A semi-annular plate (11) is fixedly connected to both sides of the first semi-ring (201) and the second semi-ring (202), and the inner portion of each semi-annular plate (11) is fixedly connected to a semi-expansion ring (27). The two semi-expansion rings (27) on one side together form a complete circular structure. The end of the extension sleeve (6) away from the hand-held rod (1) is rotatably connected to a rotating rod (9). A hook through hole (10) is provided through the portion of the rotating rod (9) outside the extension sleeve (6). The portion of the rotating rod (9) inside the extension sleeve (6) is fixedly connected to an inflatable structure. The inflatable structure comprises three support platforms, one of which is located on the connecting block (3), and the remaining two support platforms are fixedly arranged on the first half ring (201) and the second half ring (202), respectively. Each support platform comprises a fixed cylinder (13), each of which is sealed and slidably connected to a support rod (14), and each of which is fixedly provided with a fixed plate (15) at one end outside the fixed cylinder (13), and the fixed plate (15) is made of rubber material. An air inlet hole is provided at the bottom of each of the fixed cylinders (13), and a plurality of the air inlet holes are connected to an inflatable channel (28), and the inflatable channel (28) is respectively provided in the inner wall of the first half ring (201), the second half ring (202) and the connecting block (3); One end of the rotating rod (9) located in the extension sleeve (6) is fixedly connected to a threaded rod (16), and the threaded rod (16) is threadedly connected to a piston block (17). An air inlet channel (18) is provided through the inner wall of the piston block (17). The inner wall of the rotating rod (9) is sealed and fixedly connected to a layered plate (19). The threaded rod (16) and the layered plate (19) are rotatably connected via a bearing. An air filling port (20) is provided in the layered plate (19). Both the air inlet channel (18) and the air filling port (20) are sealed and connected to a one-way valve. An air inlet port (21) is provided on a side of the extension sleeve (6) close to the rotating rod (9). A spring (22) is sleeved on the outer side of the threaded rod (16), and both ends of the spring (22) are connected to the piston block (17) and the layered plate (19) respectively. A connecting channel (23) is provided in the threaded block (7), the hand-held rod (1) and the fixed block (12). An end of the connecting channel (23) away from the extension sleeve (6) is sealed and connected to the inflation channel (28). A sealing layer is provided at the connection between the connecting channel (23) and the inflation channel (28).

2. A high-efficiency gas pipeline leakage detection device according to claim 1, characterized in that: The disassembly and assembly structure comprises two spring pieces (24) fixedly arranged on the fixed block (12), the two spring pieces (24) being symmetrically arranged, a groove (25) being provided on a side of the connecting block (3) close to the fixed block (12), the two spring pieces (24) being in contact with two side walls of the groove (25), a locking platform (26) being fixed to each other by bolts and nuts being provided on a side of the first half ring (201) and the second half ring (202) away from the connecting block (3), the first half ring (201) and the second half ring (202) being rotated with the connecting block (3) via an energized torsion spring, and the energized torsion spring being electrically connected to the energized switch (8) via a detector.

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