Online detection device for polyethylene gas pipeline

Abstract

The invention discloses a polyethylene gas pipeline online detection device which comprises a bottom box, bearing blocks are welded to the two ends of the bottom of the bottom box, universal wheels are fixedly connected to the two ends of the bottom of each bearing block, and a first side plate is welded to one end of the top of the bottom box. According to the gas pipeline detection device, the detection mechanism can be mounted on the mounting plate firstly, then the whole device is moved to a designated position, then a second sliding block drives the detection mechanism to slowly move upwards by adjusting a second positive and negative rotation motor, at the moment, a gas pipeline at a high position can be detected, and when the second sliding block moves to the topmost end and cannot continue to move upwards, the detection mechanism is moved to the designated position. The first forward and reverse rotation motor can be adjusted while the second forward and reverse rotation motor is closed, at the moment, the first sliding block drives the second sliding groove cabinet and the detection mechanism to continue to move upwards together, the detection range of the detection device is expanded, and meanwhile the workload of detection personnel is relieved.

Description

Technical Field

[0001] This invention relates to the field of gas pipeline inspection technology, and in particular to an online inspection device for polyethylene gas pipelines. Background Technology

[0002] Polyethylene gas pipelines are pipes made of polyethylene material, primarily used for transporting natural gas. Polyethylene gas pipelines are resistant to corrosion from various chemicals, thus reducing the frequency of maintenance and replacement, lowering costs. They also have good anti-aging properties, maintaining their performance and appearance for a long time. Compared to other metal pipelines, polyethylene gas pipelines are lighter, facilitating installation and transportation. Online gas pipeline monitoring ensures the pipeline is in a safe condition, removes obstacles that may affect monitoring, and allows for appropriate preventative measures. Online gas pipeline monitoring devices are professional gas detection equipment, such as infrared gas analyzers or combustible gas detectors, used to detect leaks inside the pipeline. If a leak is detected, its location and cause should be further determined.

[0003] A search revealed prior art, patent application number CN202321150559.3, which discloses an online gas pipeline inspection device. Through the cooperation of a worm gear, handle, worm wheel, first support rod, second support rod, support plate, first motor, and rollers, the handle drives the worm gear to rotate, the worm gear drives two worm wheels to rotate, the worm wheels drive the first support rod to rotate, the first support rod drives the second support rod to move, the two second support rods drive the support plate to move, the support plate drives the first motor and rollers to move, the first motor drives the rollers to rotate, and the drive mechanism drives the housing to move along the gas pipeline, thereby driving the outer shell and sleeve to move. This allows for the inspection of different locations on the gas pipeline without requiring manual inspection by holding the device and using a safety rope while climbing buildings, thus facilitating inspection while ensuring personal safety.

[0004] The above technical solution also has the following drawbacks: Before using the detection device, the entire device needs to be manually fixed to the gas pipeline. After the detection of a vertical gas pipeline is completed, the entire device also needs to be manually disassembled. During the installation and disassembly of the detection device, not only is the time of the staff greatly wasted, but also when the device is used to detect gas pipelines with a lot of dirt or cracks on the surface, the casing of the detection device will shake violently during the movement, which may even cause the detection device to fall and be damaged in severe cases. Summary of the Invention

[0005] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0006] To solve the above problems, the present invention adopts the following technical solution.

[0007] An online detection device for polyethylene gas pipelines includes a base box. Load-bearing blocks are welded to both ends of the bottom of the base box, and casters are fixedly connected to both ends of the bottom of each load-bearing block. A first side plate is welded to one end of the top of the base box. A first sliding cabinet is welded to one outer wall of the first side plate. A first slider is slidably connected to the inner wall of the first sliding cabinet. A second side plate is welded to one outer wall of the first slider. A second sliding cabinet is welded to one outer wall of the second side plate. A second slider is slidably connected to the inner wall of the second sliding cabinet. An installation plate is welded to one outer wall of the second slider. Handle rods are sleeved at both ends of the inner wall of the installation plate. A top block is welded to the top of the handle rod. A handle bracket is welded to the top of the top block. A load-bearing plate is welded to one outer wall of the top block. A shell is welded to one outer wall of the load-bearing plate. A cavity is formed in the inner wall of the shell, and a detector is installed inside the cavity.

[0008] As a further description of the above technical solution: A base plate is fixedly connected to the bottom of the inner wall of the base box. A first sliding frame is fixedly connected to the top and bottom of the front end of the base box. A first box door is slidably connected to the inner wall of the first sliding frame. A first forward and reverse motor is fixedly connected to one end of the top of the base plate, and a second forward and reverse motor is fixedly connected to the other end of the top of the base plate. The first forward and reverse motor can rotate together with the first threaded post on the first shaft core at the top of the first turntable. The second forward and reverse motor can rotate together with the second shaft core and the second threaded post on the outer wall of the slide rod at the top of the second turntable.

[0009] As a further description of the above technical solution: Support plates are fixedly connected to both ends of the outer wall of the other side of the first side plate. A shaft is welded to the top of the opposite side of the support plate. A push-pull plate is rotatably connected to the outer wall of the shaft. A first turntable is fixedly connected to the movable end of the first forward and reverse motor. A first shaft core is welded to the center of the top of the first turntable. The outer wall of the first shaft core is rotatably connected to the inner wall of the center of the bottom of the first slide cabinet. A first threaded column is welded to the top of the first shaft core. A first rotating shaft is fixedly connected to the top of the first threaded column. The outer wall of the first threaded column is threadedly connected to the inner wall of the first slider. When the first threaded column rotates, the first slider will slide up and down on the outer wall of the first threaded column. At this time, the second side plate and the second slide cabinet on one side of the outer wall of the first slider will also slide up and down together, thereby adjusting the height of the detection device.

[0010] As a further description of the above technical solution: A load-bearing baffle is fixedly connected to the other end of the top of the base box. A second turntable is fixedly connected to the movable end of the second forward and reverse motor. Slide rods are welded to both ends of the top of the second turntable. A second shaft is slidably connected to the bottom of the outer wall of the slide rod. The top of the outer wall of the second shaft is rotatably connected to the inner wall at the center of the bottom of the second slide cabinet. A second threaded column is fixedly connected to the top of the second shaft. The top of the outer wall of the slide rod is slidably connected to both ends of the inner wall of the second threaded column. A second rotating shaft is fixedly connected to the top of the second threaded column. The outer wall of the second threaded column is threadedly connected to the inner wall of the second slider. When the second threaded column rotates, the second slider will slide up and down on the outer wall of the second threaded column. At this time, the mounting plate and detection mechanism on one side of the outer wall of the second slider will also slide up and down, thereby adjusting the height of the detection device.

[0011] As a further description of the above technical solution: An installation ring is fixedly connected to one end of the inner wall of the cavity. An air suction hood is threadedly connected to the inner wall of the installation ring. A dustproof net is fixedly connected to the top of the inner wall of the air suction hood. An air intake fan is fixedly connected to the bottom of the air suction hood. By setting a simple connection method between the air suction hood and the installation ring, the disassembly and assembly of the air suction hood is more convenient and quick, and it is also easy to clean the dust adhering to the surface of the dustproof net.

[0012] As a further description of the above technical solution: A detection sensor is fixedly connected to the center of one side of the outer wall of the detector, and the center of one side of the outer wall of the load-bearing plate is fixedly connected to the other side of the outer wall of the detector. An air outlet pipe is fixedly connected to the inner wall of one bottom end of the housing, and a control module is fixedly connected to the inner wall of one top end of the housing. By setting the air outlet pipe, excess gas in the detection mechanism can be quickly discharged.

[0013] As a further description of the above technical solution: A data cable is fixedly connected to the bottom center of the control module, and the bottom of the data cable is fixedly connected to the top center of the detector. An alarm light is fixedly connected to one end of the top of the control module, and an alarm is fixedly connected to the other end of the top of the control module. A second sliding frame is fixedly connected to the top and bottom of the front end of the housing, and a second door is slidably connected to the inner wall of the second sliding frame. After opening the second door, the detector can be replaced and repaired.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: Workers can lift the handle frame and insert the handle bar at the bottom of the top block vertically downwards into the mounting plate to fix the entire testing mechanism. Workers can also hold a set of handle bars with one hand to operate and move the entire testing mechanism. If it is necessary to test a high gas pipeline, the testing mechanism can be installed on the mounting plate first, and then the entire device can be moved to the designated position. Then, by adjusting the second forward and reverse motor, the second slider can be moved upwards with the testing mechanism. At this time, the gas pipeline at a higher position can be tested. When the second slider moves to the top and can no longer move upwards, the second forward and reverse motor can be turned off while the first forward and reverse motor is adjusted. At this time, the first slider will continue to move upwards with the second slide cabinet and the testing mechanism. This structure not only expands the testing range of the testing device, but also reduces the workload of the testing personnel.

[0015] By installing a dustproof net at the top of the inner wall of the air intake hood, external dust can be prevented from being sucked into the detection mechanism, which not only improves the service life of the detection mechanism but also enhances its safety. By installing alarm lights and sirens, when a natural gas leak is detected, the alarm lights will illuminate and the sirens will sound. If the sound of the sirens disturbs residents, the sirens can be turned off separately. Attached Figure Description

[0016] Figure 1 This is a three-dimensional diagram of an online detection device for polyethylene gas pipelines proposed in this invention; Figure 2 This is a front view of an online detection device for polyethylene gas pipelines proposed in this invention; Figure 3 This is a front sectional view of an online detection device for polyethylene gas pipelines proposed in this invention; Figure 4 This invention proposes an online detection device for polyethylene gas pipelines. Figure 3 Enlarged view of a portion of region A in the middle; Figure 5 This invention proposes an online detection device for polyethylene gas pipelines. Figure 3 Enlarged view of a portion of region B in the middle; Figure 6 This invention proposes an online detection device for polyethylene gas pipelines. Figure 3 Enlarged view of a portion of region C.

[0017] The correspondence between the labels and component names in the attached figures is as follows: 1. Base box; 2. Base plate; 3. Load-bearing block; 4. Casters; 5. First slide rail frame; 6. First door; 7. First forward / reverse motor; 8. Second forward / reverse motor; 9. First side plate; 10. First slide rail cabinet; 11. Support plate; 12. Shaft; 13. Sliding plate; 14. First turntable; 15. First shaft core; 16. First threaded post; 17. First rotating shaft; 18. First slider; 19. Second side plate; 20. Second slide rail cabinet; 21. Load-bearing baffle; 22. Second turntable; 23. Slide rod; 24. Second shaft core; 25. Second threaded post; 26. Second rotating shaft; 27. Second slider; 28. Mounting plate; 29. ​​Handle handle; 30. Top block; 31. Handle bracket; 32. Load-bearing plate; 33. Housing; 34. 35. Cavity; 36. Mounting ring; 37. Suction hood; 38. Dustproof net; 39. Air intake fan; 40. Detector; 41. Detection sensor; 42. Air outlet pipe; 43. Control module; 44. Data cable; 45. Alarm light; 46. Alarm; 47. Second slide frame; 48. Second door. Detailed Implementation To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0018] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0019] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places throughout this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that mutually excludes other embodiments. The present invention provides the following embodiments.

[0020] Reference Figures 1-6An embodiment of the present invention provides an online detection device for polyethylene gas pipelines, comprising a base box 1, a base plate 2 fixedly connected to the bottom of the inner wall of the base box 1, load-bearing blocks 3 welded to both ends of the bottom of the base box 1, and casters 4 fixedly connected to both ends of the bottom of the load-bearing blocks 3. By setting the casters 4, the entire device can be moved more easily. A first sliding frame 5 is fixedly connected to the top and bottom of the front end of the base box 1. A first door 6 is slidably connected to the inner wall of the first sliding frame 5. When the first door 6 is removed from the first sliding frame 5, the operator can control the first forward and reverse motor 7 and the second forward and reverse motor 8. The first forward and reverse motor 7 is fixedly connected to one end of the top of the base plate 2. The first forward and reverse motor 7 can rotate together with the first threaded post 16 on the first shaft core 15 on the top of the first turntable 14.

[0021] A second forward / reverse motor 8 is fixedly connected to the other end of the top of the base plate 2. The second forward / reverse motor 8 can rotate together with the second shaft core 24 and the second threaded column 25 on the outer wall of the slide rod 23 on the top of the second turntable 22. A first side plate 9 is welded to one end of the top of the base box 1. A first slide cabinet 10 is welded to one outer wall of the first side plate 9. Support plates 11 are fixedly connected to both ends of the other outer wall of the first side plate 9. A shaft 12 is welded to the top of the opposite side of the support plate 11. A push-pull plate 13 is rotatably connected to the outer wall of the shaft 12. By setting the push-pull plate 13, the operator can grip the push-pull plate 13 with both hands to drag the entire device. A first turntable 14 is fixedly connected to the movable end of the first forward / reverse motor 7. A first shaft core 15 is welded to the center of the top of the first turntable 14. The outer wall of the first shaft core 15 is rotatably connected to the inner wall at the bottom center of the first slide cabinet 10. The top of the first shaft core 15 is welded with a first threaded post 16. The top of the first threaded post 16 is fixedly connected with a first rotating shaft 17. The outer wall of the first threaded post 16 is threadedly connected to a first slider 18. When the first threaded post 16 rotates, the first slider 18 will slide up and down on the outer wall of the first threaded post 16. At this time, the second side plate 19 on one side of the outer wall of the first slider 18 and the second slide cabinet 20 will also slide up and down together, thereby adjusting the height of the detection device. The front and rear ends of the first slider 18 are slidably connected to the inner walls of the first slide cabinet 10. The outer wall of the first slider 18 is welded with a second side plate 19. The outer wall of the second side plate 19 is welded with a second slide cabinet 20.

[0022] A load-bearing baffle 21 is fixedly connected to the other end of the top of the base box 1. A second turntable 22 is fixedly connected to the movable end of the second forward and reverse motor 8. Slide rods 23 are welded to both ends of the top of the second turntable 22. A second shaft core 24 is slidably connected to the bottom of the outer wall of the slide rod 23. The top of the outer wall of the second shaft core 24 is rotatably connected to the inner wall at the center of the bottom of the second slide cabinet 20. A second threaded column 25 is fixedly connected to the top of the second shaft core 24. The top of the outer wall of the slide rod 23 is slidably connected to both ends of the inner wall of the second threaded column 25. A second rotating shaft 26 is fixedly connected to the top of the second threaded column 25. A second slider 27 is threadedly connected to the outer wall of the second threaded column 25. When the second threaded column 25 rotates, the second slider 27 moves up and down on the outer wall of the second threaded column 25. When the second slider 27 slides, the mounting plate 28 on one side of the outer wall and the detection mechanism will also slide up and down together, thereby adjusting the height of the detection device. The front and rear ends of the second slider 27 are slidably connected to the inner walls of the second slide cabinet 20. The mounting plate 28 is welded to one side of the outer wall of the second slider 27. The two ends of the inner wall of the mounting plate 28 are fitted with handles 29. The top of the handles 29 is welded with a top block 30. The top of the top block 30 is welded with a handle frame 31. The operator can lift the handle frame 31 and insert the handles 29 on the detection mechanism vertically downward into the mounting plate 28, thereby fixing the entire detection mechanism. The operator can hold a set of handles 29 with one hand to operate and move the detection mechanism.

[0023] A load-bearing plate 32 is welded to one outer wall of the top block 30. A shell 33 is welded to one outer wall of the load-bearing plate 32. A cavity 34 is formed in the inner wall of the shell 33. An installation ring 35 is fixedly connected to one end of the inner wall of the cavity 34. An air suction hood 36 is threadedly connected to the inner wall of the installation ring 35. By setting a simple connection between the air suction hood 36 and the installation ring 35, the disassembly and assembly of the air suction hood 36 are made more convenient and quick. It also facilitates the cleaning of dust adhering to the surface of the dustproof net 37. A dustproof net 37 is fixedly connected to the top of the inner wall of the air suction hood 36. By setting the dustproof net 37, external dust can be prevented from being sucked into the detection mechanism. The service life and safety of the testing mechanism are improved. An air intake fan 38 is fixedly connected to the bottom of the air intake hood 36. By setting the air intake fan 38, the gas around the gas pipeline can be quickly absorbed. A detector 39 is fixedly connected to the center of the outer wall of one side of the load-bearing plate 32. A detection sensor 40 is fixedly connected to the center of the outer wall of one side of the detector 39. By setting the detector 39 and the detection sensor 40, air can be detected. An exhaust pipe 41 is fixedly connected to the inner wall of one end of the bottom of the housing 33. By setting the exhaust pipe 41, excess gas in the testing mechanism can be quickly discharged.

[0024] A control module 42 is fixedly connected to the inner wall of the top end of the housing 33. A data cable 43 is fixedly connected to the center of the bottom of the control module 42. The bottom of the data cable 43 is fixedly connected to the center of the top of the detector 39. An alarm light 44 is fixedly connected to one end of the top of the control module 42, and an alarm 45 is fixedly connected to the other end of the top of the control module 42. By setting the alarm light 44 and the alarm 45, when a natural gas leak is detected, the alarm light 44 will light up and the alarm 45 will sound. If the sound of the alarm 45 disturbs the residents, the alarm 45 can be turned off separately. A second sliding frame 46 is fixedly connected to the top and bottom of the front end of the housing 33. A second door 47 is slidably connected to the inner wall of the second sliding frame 46.

[0025] The above description, in conjunction with specific embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, several simple deductions or substitutions can be made without departing from the concept of the present invention, and all such deductions or substitutions should be considered to fall within the scope of protection defined by the claims submitted herein.

Claims

1. An online detection device for polyethylene gas pipelines, comprising a base box (1), characterized in that: The bottom of the base box (1) is welded with load-bearing blocks (3) at both ends. Universal wheels (4) are fixedly connected to both ends of the bottom of the load-bearing blocks (3). A first side plate (9) is welded to one end of the top of the base box (1). A first sliding cabinet (10) is welded to one outer wall of the first side plate (9). A first slider (18) is slidably connected to the inner wall of the first sliding cabinet (10). A second side plate (19) is welded to one outer wall of the first slider (18). A second sliding cabinet (20) is welded to one outer wall of the second side plate (19). The inner wall of the second sliding cabinet (20) is slidably connected to the first slider (18). A second slider (27) is connected to the second slider (27). A mounting plate (28) is welded to one side of the outer wall of the second slider (27). A handle rod (29) is sleeved on both ends of the inner wall of the mounting plate (28). A top block (30) is welded to the top of the handle rod (29). A handle frame (31) is welded to the top of the top block (30). A load-bearing plate (32) is welded to one side of the outer wall of the top block (30). A shell (33) is welded to one side of the outer wall of the load-bearing plate (32). A cavity (34) is opened in the inner wall of the shell (33). A detector (39) is installed inside the cavity (34).

2. The online detection device for polyethylene gas pipelines according to claim 1, characterized in that: The bottom of the inner wall of the bottom box (1) is fixedly connected to a bottom plate (2). The top and bottom of the front end of the bottom box (1) are fixedly connected to a first sliding frame (5). The inner wall of the first sliding frame (5) is slidably connected to a first box door (6). The top of the bottom plate (2) is fixedly connected to a first forward and reverse motor (7). The other top of the bottom plate (2) is fixedly connected to a second forward and reverse motor (8).

3. The online detection device for polyethylene gas pipelines according to claim 2, characterized in that: Support plates (11) are fixedly connected to both ends of the outer wall of the other side of the first side plate (9). A shaft (12) is welded to the top of the opposite side of the support plate (11). A push-pull plate (13) is rotatably connected to the outer wall of the shaft (12). A first turntable (14) is fixedly connected to the movable end of the first forward and reverse motor (7). A first shaft core (15) is welded to the top center of the first turntable (14). The outer wall of the first shaft core (15) is rotatably connected to the inner wall at the bottom center of the first slide cabinet (10). A first threaded column (16) is welded to the top of the first shaft core (15). A first rotating shaft (17) is fixedly connected to the top of the first threaded column (16). The outer wall of the first threaded column (16) is threadedly connected to the inner wall of the first slider (18).

4. The online detection device for polyethylene gas pipelines according to claim 2, characterized in that: A load-bearing baffle (21) is fixedly connected to the other end of the top of the bottom box (1). A second turntable (22) is fixedly connected to the movable end of the second forward and reverse motor (8). A slide rod (23) is welded to both ends of the top of the second turntable (22). A second shaft core (24) is slidably connected to the bottom of the outer wall of the slide rod (23). The top of the outer wall of the second shaft core (24) is rotatably connected to the inner wall at the center of the bottom of the second slide cabinet (20). A second threaded column (25) is fixedly connected to the top of the second shaft core (24). The top of the outer wall of the slide rod (23) is slidably connected to both ends of the inner wall of the second threaded column (25). A second rotating shaft (26) is fixedly connected to the top of the second threaded column (25). The outer wall of the second threaded column (25) is threadedly connected to the inner wall of the second slider (27).

5. The online detection device for polyethylene gas pipelines according to claim 1, characterized in that: An installation ring (35) is fixedly connected to one end of the inner wall of the cavity (34). An air suction hood (36) is threadedly connected to the inner wall of the installation ring (35). A dustproof net (37) is fixedly connected to the top of the inner wall of the air suction hood (36). An air intake fan (38) is fixedly connected to the bottom of the air suction hood (36).

6. The online detection device for polyethylene gas pipelines according to claim 1, characterized in that: A detection sensor (40) is fixedly connected to the center of one side of the outer wall of the detector (39). The center of one side of the outer wall of the load-bearing plate (32) is fixedly connected to the other side of the outer wall of the detector (39). An air outlet pipe (41) is fixedly connected to the inner wall of one bottom end of the housing (33). A control module (42) is fixedly connected to the inner wall of one top end of the housing (33).

7. The online detection device for polyethylene gas pipelines according to claim 6, characterized in that: A data cable (43) is fixedly connected to the bottom center of the control module (42). The bottom of the data cable (43) is fixedly connected to the top center of the detector (39). An alarm light (44) is fixedly connected to one end of the top of the control module (42). An alarm (45) is fixedly connected to the other end of the top of the control module (42). A second sliding frame 2 (46) is fixedly connected to the top and bottom of the front end of the housing (33). A second door (47) is slidably connected to the inner wall of the second sliding frame (46).

Images