Positioning device for buried gas pipeline aging assessment
By combining an electromagnetic induction probe and an acoustic sensor with longitudinal and lateral adjustment mechanisms, the problem of being unable to simultaneously locate and mark pipelines of multiple materials in existing technologies has been solved. This enables accurate location and differentiation of gas pipelines of different materials, facilitating subsequent maintenance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 惠州市城市燃气发展有限公司
- Filing Date
- 2025-10-23
- Publication Date
- 2026-07-21
AI Technical Summary
Existing pipe locators cannot locate pipes made of multiple materials simultaneously and lack marking functionality.
The system employs an electromagnetic induction probe and an acoustic sensor combined with longitudinal and lateral adjustment mechanisms to locate pipes of different materials. It also uses a marking mechanism to mark the location of the pipes and a powder-spreading component to create a mark on the pipe location.
It enables accurate positioning and differentiation marking of gas pipelines of different materials, facilitating subsequent maintenance.
Smart Images
Figure CN224536195U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pipeline maintenance technology, and in particular to a positioning device for assessing the aging of buried gas pipelines. Background Technology
[0002] To accelerate the upgrading and renovation of old pipelines and the rectification of hidden dangers, and to improve the level of gas safety, based on the characteristics of buried low-pressure gas pipelines and risers, combined with the characteristics of pipeline materials and damage mechanisms, we analyzed the possible damage points of the pipelines, carried out effective detection on the parts prone to defects, conducted pipeline aging assessments in conjunction with data review, and repaired and treated unqualified pipelines.
[0003] The evaluation process requires the use of a pipe locator to position the pipe, and then the testing equipment is inserted into the pipe to perform the test.
[0004] Existing pipe locators cannot locate pipes made of various materials and do not have the function of marking the pipe position. Utility Model Content
[0005] To address the technical problems of existing pipe locators being unable to locate pipes made of multiple materials simultaneously and lacking marking functionality, this utility model provides a positioning device for assessing the aging of buried gas pipelines.
[0006] The positioning device for aging assessment of buried gas pipelines provided by this utility model adopts the following technical solution: A positioning device for assessing the aging of buried gas pipelines includes a main frame, an electromagnetic induction probe located at the front end of the main frame, an acoustic sensor located at the lower part of the main frame, a vertical beam welded to the front end of the main frame, and a horizontal beam welded to the bottom of the main frame. A longitudinal adjustment mechanism for adjusting the positioning height of the electromagnetic induction probe is installed on the vertical beam, with the electromagnetic induction probe mounted at the bottom of the longitudinal adjustment mechanism. A lateral adjustment mechanism for adjusting the lateral position of the acoustic sensor is installed on the horizontal beam, with the acoustic sensor mounted at the bottom of the lateral adjustment mechanism. A marking mechanism for marking the pipeline position is also provided inside the main frame.
[0007] By adopting the above technical solution: the buried steel pipeline is located by an electromagnetic induction probe, and the buried PE pipeline is located by an acoustic sensor; the positioning height of the electromagnetic induction probe is adjusted by a longitudinal adjustment mechanism, the lateral positioning position of the acoustic sensor is adjusted by a lateral adjustment mechanism, and the pipeline position can be marked by a marking mechanism.
[0008] Furthermore, the longitudinal adjustment mechanism and the lateral adjustment mechanism have the same structure. The lateral adjustment mechanism includes a mounting plate that is slidably sleeved on the crossbeam. A motor is screwed onto the mounting plate. A first gear is connected to the output end of the motor. A transverse rack that meshes with the first gear is provided on the side of the crossbeam. An acoustic sensor is installed at the bottom of the mounting plate.
[0009] By adopting the above technical solution: the first gear is driven to rotate by a motor, so that the first gear moves on the horizontal rack, so that the mounting plate drives the acoustic sensor to move with the first gear, and the positioning position of the acoustic sensor is finely adjusted.
[0010] Furthermore, side plates and a rear plate are screwed to the sides and rear of the main frame. Inside the main frame, a battery that supplies power to the motor and a control module that controls the operation of the motor are also installed. The battery is electrically connected to the control module, and the control module is electrically connected to the motor. Casters are screwed to the bottom of the main frame.
[0011] By adopting the above technical solution: the lower part of the main frame is shielded by side panels and rear panels to prevent strong winds from entering and affecting the effect of pipe marking; the motor is controlled by a control module; and casters are provided to facilitate the movement of the main frame.
[0012] Furthermore, a support plate is welded inside the main frame, and the marking mechanism is fixedly installed on the support plate. The marking mechanism includes a storage hopper, which is a funnel-shaped structure with openings at the top and bottom. The bottom of the storage hopper is screwed onto the support plate. By adopting the above technical solution, the marking powder is placed in a storage hopper for use when marking pipelines.
[0013] Furthermore, a powder outlet pipe connected to the inside of the storage hopper is provided on the lower side wall of the storage hopper. The powder in the storage hopper is dispersed to the ground through the powder outlet pipe. A powder dispersing component is provided at the bottom of the storage hopper to drive the powder in the storage hopper into the powder outlet pipe.
[0014] By adopting the above technical solution, the powder dispersing component drives the powder in the storage hopper to be dispersed to the ground through the powder outlet pipe.
[0015] Furthermore, the powder dispersing assembly includes a powder dispersing wheel rotatably disposed at the opening at the bottom of the storage hopper. During rotation, the powder dispersing wheel pushes the powder dispersing from the opening at the bottom of the storage hopper into the powder dispersing pipe. A stirring rod is fixedly connected to the upper end of the powder dispersing wheel to prevent the powder dispersing from accumulating and clumping. A second gear is fixedly connected to the lower end of the powder dispersing wheel to drive the powder dispersing wheel to rotate. A connecting rod is connected to the side of the second gear. After the connecting rod passes through the side plate, a rotating handle is fixedly installed at its end.
[0016] By adopting the above technical solution: when marking the location of the pipeline for powder dispersion, the handle is rotated to make the third gear drive the second gear to rotate, and the second gear drives the powder discharge wheel and the stirring rod to rotate, so as to move the powder in the storage hopper to the powder discharge pipe for ground powder dispersion.
[0017] Furthermore, the bottom of the powder outlet pipe has two powder outlet ends, a first pipe body and a second pipe body, and a blocking mechanism is rotatably provided at the position where the second pipe body is connected to the powder outlet pipe to control the connection or disconnection between the second pipe body and the powder outlet pipe.
[0018] By adopting the above technical solution, the bottom of the powder outlet pipe can be equipped with a barrier mechanism to allow the first and second pipes to disperse powder simultaneously, or only the first pipe to disperse powder, thus distinguishing between pipes that need maintenance and pipes that do not need maintenance.
[0019] Furthermore, the blocking mechanism includes a baffle plate rotatably disposed inside the upper end of the second tube body, a connecting shaft disposed on the side of the baffle plate, the connecting shaft extending outward after passing through the rear plate, a rotating block located at the end of the connecting shaft, a fixing plate welded in the rear plate at a position corresponding to the rotating block, an arc-shaped groove being provided on the side of the fixing plate near the rotating block, and a fixing pin being provided on the rotating block that cooperates with the arc-shaped groove in the fixing plate.
[0020] By adopting the above technical solution, the rotating block can drive the baffle to rotate, so that the second tube can be connected to or disconnected from the powder outlet tube.
[0021] Furthermore, a connecting arm is provided on the upper part of the rotating block, and a spring is provided between the connecting arm and the fixed plate. One end of the spring is fixedly connected to the fixed plate, and the other end of the spring is fixedly connected to the connecting arm.
[0022] By adopting the above technical solution: under the elastic force of the spring, the fixing pin is engaged in the limiting groove. At this time, the upper end of the second tube is isolated by the baffle. When the aging of the positioning pipe is detected and needs to be repaired or replaced, the rotating block is rotated so that the connecting arm overcomes the tension of the spring and drives the baffle to rotate. Then, the handle is rotated so that the powder in the storage hopper is simultaneously dispersed from the first and second tubes, forming a double-point or double-line mark. When the pipe does not need to be repaired, the rotating block is released, and the baffle is reset under the tension of the spring and isolates the upper end of the second tube. At this time, the handle is rotated to mark the position of the qualified pipe with a single point or single line.
[0023] In summary, the beneficial effects of this utility model are as follows: This positioning device utilizes an electromagnetic induction probe, an acoustic sensor, and a marking mechanism. During operation, the vertical adjustment mechanism controls the height of the electromagnetic induction probe to locate steel pipes, while the horizontal adjustment mechanism adjusts the lateral position of the acoustic sensor to locate PE pipes. Once the location is determined, the detection device is inserted into the soil to inspect the aging condition of the gas pipeline. When the pipeline is severely aged and requires repair, rotating the rotating block in the marking mechanism causes powder in the storage hopper to simultaneously disperse from the first and second pipe bodies to the ground, forming double-point or double-line marks. When the pipeline does not require repair, releasing the rotating block allows the baffle to reset under spring tension, isolating the upper end of the second pipe body. At this point, rotating the handle marks the location of the qualified pipeline with a single point or single line. This structure facilitates the positioning of buried gas pipelines of different materials and allows for the differentiation between pipelines requiring repair and those that are qualified, facilitating subsequent pipeline maintenance. Attached Figure Description
[0024] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the first internal structure of the present invention; Figure 3 This is a first sectional view of the present invention; Figure 4 This utility model Figure 3 Enlarged view of part A in the middle; Figure 5 This is a second sectional view of the present invention; Figure 6 This utility model Figure 5 Enlarged view of part B in the middle; Figure 7 This is a schematic diagram of the second internal structure of the present invention; Figure 8 This utility model Figure 7 Enlarged view of the C-section.
[0025] In the diagram: 1. Main frame; 4. Marking mechanism; 6. Battery; 7. Control module; 12. Side plate; 13. Rear plate; 14. Casters; 15. Support plate; 16. Vertical beam; 17. Horizontal beam; 21. Mounting plate; 22. First gear; 23. Motor; 24. Horizontal rack; 31. Electromagnetic induction probe; 32. Acoustic sensor; 41. Storage hopper; 42. Powder outlet pipe; 43. Powder dispersing assembly; 431. Powder outlet wheel; 432. Stirring rod; 433. Second gear; 434. Third gear; 435. Connecting rod; 436. Rotating handle; 421. First tube; 422. Second tube; 51. Baffle; 52. Connecting shaft; 53. Fixing plate; 54. Rotating block; 55. Spring; 531. Limiting groove; 541. Fixing pin; 542. Connecting arm. Detailed Implementation
[0026] The present invention will be further described below with reference to specific embodiments. The illustrative embodiments and descriptions of the present invention are used to explain the present invention, but are not intended to limit the present invention.
[0027] Reference Figure 1 and Figure 2 As shown, this utility model discloses a positioning device for aging assessment of buried gas pipelines, including a main frame 1. An electromagnetic induction probe 31 for positioning buried steel pipelines is located at the front end of the main frame 1, and an acoustic sensor 32 for positioning buried PE pipelines is located at the lower part of the main frame 1. Specifically, a vertical beam 16 is welded to the front end of the main frame 1, and a horizontal beam 17 is welded to the bottom of the main frame 1. A longitudinal adjustment mechanism for adjusting the positioning height of the electromagnetic induction probe 31 is provided on the vertical beam 16, and the electromagnetic induction probe 31 is installed at the bottom of the longitudinal adjustment mechanism. A lateral adjustment mechanism for adjusting the lateral position of the acoustic sensor 32 is provided on the horizontal beam 17, and the acoustic sensor 32 is installed at the bottom of the lateral adjustment mechanism. Side plates 12 and a rear plate 13 are screwed to the sides and rear of the main frame 1, respectively. The side plates 12 and the rear plate 13 shield the lower part of the main frame 1 to prevent strong winds from entering and affecting the pipeline marking effect, which will be described later.
[0028] Furthermore, since the longitudinal adjustment mechanism and the lateral adjustment mechanism have the same structure, only the structure of the lateral adjustment mechanism will be specifically described here. (Refer to...) Figure 2 As shown, the lateral adjustment mechanism includes a mounting plate 21 slidably sleeved on the crossbeam 17. A motor 23 is screwed onto the mounting plate 21. A first gear 22 is connected to the output end of the motor 23. A transverse rack 24, meshing with the first gear 22, is located on the side of the crossbeam 17. An acoustic sensor 32 is mounted at the bottom of the mounting plate 21. In use, the motor 23 drives the first gear 22 to rotate, causing the first gear 22 to move on the transverse rack 24. This allows the mounting plate 21 to move the acoustic sensor 32 along with the first gear 22, finely adjusting the positioning of the acoustic sensor 32.
[0029] Reference Figure 1 As shown, the main frame 1 also houses a battery 6 that powers the motor 23 and a control module 7 that controls the operation of the motor 23. The battery 6 is electrically connected to the control module 7, and the control module 7 is electrically connected to the motor 23. A caster wheel 14 is screwed to the bottom of the main frame 1, facilitating movement of the main frame 1. Furthermore, the main frame 1 also contains a marking mechanism 4 for marking the location of pipes.
[0030] Specifically, refer to Figure 2As shown, a support plate 15 is welded inside the main frame 1, and the marking mechanism 4 is fixedly installed on the support plate 15. The marking mechanism 4 includes a storage hopper 41, which is a funnel-shaped structure with openings at the top and bottom. The bottom of the storage hopper 41 is screwed onto the support plate 15. A powder outlet pipe 42, which communicates with the inside of the storage hopper 41, is provided on the lower side wall of the storage hopper 41. The powder in the storage hopper 41 is dispersed to the ground through the powder outlet pipe 42. A powder dispersing component 43, which drives the powder in the storage hopper 41 into the powder outlet pipe 42, is provided at the bottom of the storage hopper 41. Moreover, referring to... Figures 3-6 As shown, the loose powder assembly 43 includes a powder discharge wheel 431 rotatably disposed at an opening at the bottom of the storage hopper 41. During rotation, the powder discharge wheel 431 pushes the loose powder from the bottom opening of the storage hopper 41 into the powder discharge pipe 42. A stirring rod 432 to prevent the loose powder from accumulating and clumping is fixedly connected to the upper end of the powder discharge wheel 431, and a second gear 433 to drive the powder discharge wheel 431 is fixedly connected to the lower end of the powder discharge wheel 431. (Refer to...) Figure 5 and Figure 6 As shown, a connecting rod 435 is connected to the side of the second gear 433. After passing through the side plate 12, a handle 436 is fixedly installed at its end. When marking the location of the pipeline for powder dispersion, rotating the handle 436 causes the third gear 434 to drive the second gear 433 to rotate. The second gear 433 drives the powder discharge wheel 431 and the stirring rod 432 to rotate, moving the powder in the storage hopper 41 to the powder discharge pipe 42 for ground dispersion.
[0031] Reference Figures 6-8 As shown, the powder outlet pipe 42 has two powder outlet ends at its bottom: a first pipe body 421 and a second pipe body 422. A blocking mechanism is rotatably installed at the upper end of the second pipe body 422, where it connects to the powder outlet pipe 42, to control whether the second pipe body 422 is connected to or disconnected from the powder outlet pipe 42. The blocking mechanism includes a baffle 51 rotatably mounted inside the upper end of the second pipe body 422. A connecting shaft 52 is provided on the side of the baffle 51, extending outward after passing through the rear plate 13. A rotating block 54 is located at the end of the connecting shaft 52. Rotating the rotating block 54 drives the baffle 51 to rotate, thereby connecting or disconnecting the second pipe body 422 from the powder outlet pipe 42. (Refer to...) Figure 8As shown, a fixing plate 53 is welded to the rear plate 13 at a position corresponding to the rotating block 54. An arc-shaped groove is opened on the side of the fixing plate 53 near the rotating block 54. A fixing pin 541 is provided on the rotating block 54 to cooperate with the arc-shaped groove in the fixing plate 53. A connecting arm 542 is also provided on the upper part of the rotating block 54. A spring 55 is provided between the connecting arm 542 and the fixing plate 53. One end of the spring 55 is fixedly connected to the fixing plate 53, and the other end of the spring 55 is fixedly connected to the connecting arm 542. Under the elastic force of the spring 55, the fixing pin 541 is engaged in the limiting groove 531. At this time, the upper end of the second tube 422 is separated by the baffle 51. When the aging of the positioning pipe is detected and it needs to be repaired or replaced, rotate the rotating block 54 so that the connecting arm 542 overcomes the tension of the spring 55 and drives the baffle 51 to rotate. Then rotate the handle 436 so that the powder in the storage hopper 41 is simultaneously discharged from the first pipe body 421 and the second pipe body 422, forming a double point or double line mark. When the pipe does not need to be repaired, release the rotating block 54. Under the tension of the spring 55, the baffle 51 is reset and the upper end of the second pipe body 422 is isolated. At this time, rotate the handle 436 to mark the position of the qualified pipe with a single point or a single line.
[0032] The working principle of this utility model is as follows: When the positioning device is used to locate buried pipelines, the vertical adjustment mechanism controls the height of the electromagnetic induction probe 31 to locate steel pipelines, and the horizontal adjustment mechanism adjusts the horizontal position of the acoustic sensor 32 to locate PE pipelines. This device can locate pipelines of various materials. After the position is determined, the detection equipment is inserted into the soil to detect the aging of the gas pipeline. When the pipeline is severely aged and needs repair, the rotating block 54 is rotated, causing the connecting arm 542 to overcome the tension of the spring 55 and drive the baffle 51 to rotate. Then, the rotating handle 436 is rotated to cause the powder in the storage hopper 41 to be simultaneously dispersed from the first pipe body 421 and the second pipe body 422 to the ground, forming double-point or double-line marks. When the pipeline does not need repair, the rotating block 54 is released, and the baffle 51 is reset under the tension of the spring 55 and isolates the upper end of the second pipe body 422. At this time, the rotating handle 436 is rotated to mark the qualified pipeline position with a single point or single line. This structure facilitates the location and accurate marking of buried gas pipelines made of different materials, making subsequent pipeline maintenance easier.
[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. The various components mentioned in this utility model are common technologies in the existing field. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A positioning device for aging assessment of buried gas pipelines, comprising a main frame (1), characterized in that, An electromagnetic induction probe (31) is provided at the front end of the main frame (1), and an acoustic sensor (32) is provided at the lower part of the main frame (1). A vertical beam (16) is welded to the front end of the main frame (1), and a horizontal beam (17) is welded to the bottom of the main frame (1). A longitudinal adjustment mechanism for adjusting the positioning height of the electromagnetic induction probe (31) is provided on the vertical beam (16). The electromagnetic induction probe (31) is installed at the bottom of the longitudinal adjustment mechanism. A lateral adjustment mechanism for adjusting the lateral position of the acoustic sensor (32) is provided on the horizontal beam (17). The acoustic sensor (32) is installed at the bottom of the lateral adjustment mechanism. A marking mechanism (4) for marking the position of the pipe is also provided inside the main frame (1).
2. The positioning device for aging assessment of buried gas pipelines according to claim 1, characterized in that, The longitudinal adjustment mechanism and the lateral adjustment mechanism have the same structure. The lateral adjustment mechanism includes a mounting plate (21) that is slidably sleeved on the crossbeam (17). A motor (23) is screwed onto the mounting plate (21). A first gear (22) is connected to the output end of the motor (23). A transverse rack (24) that meshes with the first gear (22) is provided on the side of the crossbeam (17). An acoustic sensor (32) is installed at the bottom of the mounting plate (21).
3. The positioning device for aging assessment of buried gas pipelines according to claim 1, characterized in that, Side plates (12) and rear plates (13) are screwed to the sides and rear of the main frame (1). Inside the main frame (1), there is also a battery (6) that supplies power to the motor (23) and a control module (7) that controls the operation of the motor (23). The battery (6) is electrically connected to the control module (7), and the control module (7) is electrically connected to the motor (23). A caster wheel (14) is screwed to the bottom of the main frame (1).
4. The positioning device for aging assessment of buried gas pipelines according to claim 3, characterized in that, A support plate (15) is welded inside the main frame (1). The marking mechanism (4) is fixedly installed on the support plate (15). The structure of the marking mechanism (4) includes a storage hopper (41). The storage hopper (41) is a funnel-shaped structure with openings at the top and bottom. The bottom of the storage hopper (41) is screwed onto the support plate (15).
5. The positioning device for aging assessment of buried gas pipelines according to claim 4, characterized in that, A powder outlet pipe (42) connected to the inside of the storage hopper (41) is provided on the lower side wall of the storage hopper (41). The powder in the storage hopper (41) is dispersed to the ground through the powder outlet pipe (42). A powder dispersing component (43) is provided at the bottom of the storage hopper (41) to drive the powder in the storage hopper (41) into the powder outlet pipe (42).
6. The positioning device for aging assessment of buried gas pipelines according to claim 5, characterized in that, The powder dispersing assembly (43) includes a powder dispersing wheel (431) rotatably disposed at the opening at the bottom of the storage hopper (41). During rotation, the powder dispersing wheel (431) pushes the powder at the opening at the bottom of the storage hopper (41) into the powder dispersing pipe (42). The upper end of the powder dispersing wheel (431) is fixedly connected to a stirring rod (432) to prevent the powder from accumulating and clumping. The lower end of the powder dispersing wheel (431) is fixedly connected to a second gear (433) that drives the powder dispersing wheel (431) to rotate. The side of the second gear (433) is connected to a connecting rod (435). The connecting rod (435) passes through the side plate (12) and a handle (436) is fixedly installed at its end.
7. The positioning device for aging assessment of buried gas pipelines according to claim 6, characterized in that, The bottom of the powder outlet pipe (42) has two powder outlet ends: a first pipe body (421) and a second pipe body (422). A blocking mechanism is rotatably provided at the position where the upper end of the second pipe body (422) is connected to the powder outlet pipe (42) to control the connection or disconnection between the second pipe body (422) and the powder outlet pipe (42).
8. The positioning device for aging assessment of buried gas pipelines according to claim 7, characterized in that, The blocking mechanism includes a baffle (51) rotatably disposed inside the upper end of the second tube (422). A connecting shaft (52) is provided on the side of the baffle (51). The connecting shaft (52) passes through the rear plate (13) and extends outward. A rotating block (54) is located at the end of the connecting shaft (52). A fixing plate (53) is welded in the rear plate (13) at a position corresponding to the rotating block (54). An arc-shaped groove is provided on the side of the fixing plate (53) near the rotating block (54). A fixing pin (541) is provided on the rotating block (54) to cooperate with the arc-shaped groove in the fixing plate (53).
9. A positioning device for aging assessment of buried gas pipelines according to claim 8, characterized in that, A connecting arm (542) is also provided on the upper part of the rotating block (54). A spring (55) is provided between the connecting arm (542) and the fixed plate (53). One end of the spring (55) is fixedly connected to the fixed plate (53), and the other end of the spring (55) is fixedly connected to the connecting arm (542).