Heat supply pipeline displacement real-time monitoring device
By setting up multiple detection mechanisms and adaptive components on the heating pipeline, the problems of inconvenient installation and inaccurate detection in heating pipeline displacement monitoring are solved, achieving compact and accurate displacement monitoring.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-03
- Publication Date
- 2026-03-20
AI Technical Summary
Existing heating pipelines cannot accurately predict stress changes during thermal expansion and contraction, resulting in unpredictable displacement changes. Furthermore, existing monitoring devices are bulky and inconvenient to install.
The system employs a first, second, and third detection mechanism, combined with a guide cylinder, a moving rod, an adaptive component, and clamps to achieve real-time monitoring of pipeline displacement. The accuracy of the detection direction is ensured by the adaptive component and the limit connection plate, and the system can adapt to different pipeline specifications by adjusting the component.
It achieves compact and easy-to-install pipe displacement monitoring, ensures detection accuracy, adapts to different pipe specifications, and simplifies the installation process.
Smart Images

Figure CN224019037U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pipeline displacement monitoring technology, and in particular to a real-time monitoring device for the displacement of heating pipelines. Background Technology
[0002] The pipeline route of the heating network is designed according to the terrain. When designers give sufficient margin for thermal expansion and contraction of the heating pipeline, they cannot accurately predict the stress changes between each pipe section. As a result, the heating pipeline will experience unpredictable displacement changes in direction and amount under the combined effect of its own weight and the stress of the connecting pipe sections while it is expanding and contracting.
[0003] A search revealed a Chinese patent publication number CN220751083U, which discloses a displacement monitoring system, including a support base, a displacement measuring device, and an auxiliary test piece. The displacement measuring device includes a sensor, and the test surface of the auxiliary test piece is connected to the pipeline via a clamp. The support base includes a base and a frame. This patent uses multiple sensors in different directions to achieve real-time monitoring of the displacement of the pipeline under test, which can promptly detect potential safety hazards in the pipeline.
[0004] However, its frame is a fully enclosed structure, which is large in size, inconvenient to install, and requires matching with pipe specifications, increasing the inconvenience of use. Utility Model Content
[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a real-time monitoring device for the displacement of heating pipelines.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A real-time displacement monitoring device for a heating pipeline includes a first detection mechanism, a second detection mechanism, and a third detection mechanism disposed on the side wall of the pipeline body. Each of the three detection mechanisms includes a detection component with identical structure, comprising a guide cylinder and a moving rod. The third detection mechanism further includes an adaptive component and a clamp. The adaptive component includes a fixed cylinder and a sliding rod. The fixed cylinder is fixed to one end of the moving rod in the third detection mechanism. The sliding rod is slidably fitted to the inner wall of one end of the fixed cylinder. A second spring is connected to the bottom end of the sliding rod, and the other end of the second spring is connected to the inner wall of the fixed cylinder. A moving plate is connected to the other end of the sliding rod. The clamp is fixed to the outer wall of the pipeline body, and a limiting connecting plate is fixedly connected to the outer wall of the bottom end of the clamp. One side of the outer wall of the moving plate contacts and fits against the outer wall of the limiting connecting plate. The lateral length of the limiting connecting plate is greater than or equal to the detectable displacement length of the second detection mechanism.
[0008] As a further embodiment of this utility model: the movable rod is slidably fitted to one end of the guide cylinder, and a detection plate that slidably fits with the inner wall of the guide cylinder is fixed to one end of the movable rod.
[0009] As a further improvement of this utility model: a spring is sleeved on the outer wall of one end of the moving rod, and the two ends of the spring are respectively connected to the detection plate and the inner wall of the guide cylinder.
[0010] As a further improvement of this utility model: a displacement sensor is fixed to the inner wall of the end of the guide cylinder away from the moving rod, and a contact plate is connected to one end of the moving rod of both the first detection mechanism and the second detection mechanism.
[0011] As a further embodiment of this utility model: the moving rod in the second detection mechanism is connected to the contact plate through an adjustment component, and the length of the contact plate is greater than or equal to the detectable displacement length of the first and second detection mechanisms.
[0012] As a further improvement of this utility model, the displacement sensors in the first detection mechanism, the second detection mechanism, and the third detection mechanism are all electrically connected to the external display alarm component.
[0013] As a further embodiment of this utility model: the adjustment assembly includes a connecting rod and a rotating block, the connecting rod being fixedly connected to the side wall of the contact plate, and the rotating block being rotatably connected to one end of the moving rod.
[0014] As a further embodiment of this utility model: the rotating block and the connecting rod are provided with threaded holes at one end, and the same adjusting rod is threadedly connected to the inner wall of the two threaded holes.
[0015] Compared with the prior art, this utility model provides a real-time monitoring device for the displacement of heating pipelines, which has the following beneficial effects:
[0016] 1. This utility model, by connecting and adjusting the guide cylinders of the first detection mechanism, the second detection mechanism and the third detection mechanism together, eliminates the need to manufacture a frame corresponding to the specifications of the main pipe body. The structure is compact and easy to install and carry.
[0017] 2. This utility model, by providing an adaptive component, a limiting connecting plate, and a moving plate, can maintain contact between the moving plate and the limiting connecting plate when the main body of the pipeline undergoes displacement in a direction different from the moving rod in the third detection mechanism, ensuring that the displacement of the main body of the pipeline is transmitted to the moving rod and guaranteeing the accuracy of the displacement detection direction of the third detection mechanism.
[0018] 3. This utility model is equipped with an adjustment component, which allows for connection by rotating the adjustment rod or the rotating block, making it easy to adjust the position of the contact plate according to the specifications of the pipe body.
[0019] The parts of this device not covered herein are the same as or can be implemented using existing technologies. This utility model has a simple structure and is easy to operate. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the overall structure of a real-time displacement monitoring device for heating pipelines proposed in this utility model.
[0021] Figure 2 This is a schematic diagram of the structure of the first detection mechanism of a real-time displacement monitoring device for heating pipelines proposed in this utility model;
[0022] Figure 3 This is a partial structural diagram of the third detection mechanism of a real-time displacement monitoring device for heating pipelines proposed in this utility model.
[0023] Figure 4 This is a schematic diagram of the adjustment component of a real-time displacement monitoring device for heating pipelines proposed in this utility model.
[0024] In the diagram: 1. Pipe body; 2. First detection mechanism; 3. Second detection mechanism; 4. Third detection mechanism; 5. Contact plate; 6. Guide cylinder; 7. Moving rod; 8. Detection plate; 9. Spring 1; 10. Displacement sensor; 11. Adaptive component; 12. Clamp; 13. Limiting connection plate; 14. Moving plate; 15. Fixed cylinder; 16. Sliding rod; 17. Spring 2; 18. Connecting rod; 19. Rotating block; 20. Adjusting rod. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0026] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0027] Example 1
[0028] A real-time displacement monitoring device for heating pipelines, such as Figures 1 to 3As shown, the system includes a first detection mechanism 2, a second detection mechanism 3, and a third detection mechanism 4 disposed on the side wall of the main body 1 of the pipeline. Each of the three detection mechanisms includes a detection component with the same structure. The detection component includes a guide cylinder 6 and a moving rod 7. The moving rod 7 is slidably fitted to one end of the guide cylinder 6. A detection plate 8 that slidably fits the inner wall of the guide cylinder 6 is fixed to one end of the moving rod 7. A spring 9 is sleeved on the outer wall of one end of the moving rod 7. The two ends of the spring 9 are respectively connected to the detection plate 8 and the inner wall of the guide cylinder 6. A displacement sensor 10 is fixed to the inner wall of the guide cylinder 6 away from the moving rod 7. A contact plate 5 is connected to one end of the moving rod 7 of the first detection mechanism 2 and the second detection mechanism 3. The moving rod 7 in the second detection mechanism 3 is connected to the contact plate 5 through an adjustment component. One end of the guide cylinder 6 of the first detection mechanism 2, the second detection mechanism 3, and the third detection mechanism 4 is fixedly connected to each other, and the moving directions of the moving rods 7 in the detection components of the first detection mechanism 2, the second detection mechanism 3, and the third detection mechanism 4 are perpendicularly intersecting each other.
[0029] The third detection mechanism 4 also includes an adaptive component 11 and a clamp 12. The adaptive component 11 includes a fixed cylinder 15 and a sliding rod 16. The fixed cylinder 15 is fixed to one end of the moving rod 7 in the third detection mechanism 4. The sliding rod 16 is slidably fitted to the inner wall of one end of the fixed cylinder 15. A second spring 17 is connected to the bottom end of the sliding rod 16. The other end of the second spring 17 is connected to the inner wall of the fixed cylinder 15. A moving plate 14 is connected to the other end of the sliding rod 16. The clamp 12 is fixed to the outer wall of the pipe body 1. A limiting connecting plate 13 is fixedly connected to the outer wall of the bottom end of the clamp 12. One side of the outer wall of the moving plate 14 is in contact with the outer wall of the limiting connecting plate 13. The lateral length of the limiting connecting plate 13 is greater than or equal to the detectable displacement length of the second detection mechanism 3. The length of the contact plate 5 is greater than or equal to the detectable displacement length of the first detection mechanism 2 and the second detection mechanism 3. The displacement sensors 10 in the first detection mechanism 2, the second detection mechanism 3 and the third detection mechanism 4 are all electrically connected to the external display alarm component.
[0030] During installation, clamp 12 is fixed to the surface of pipe body 1. The connectors of multiple detection components are placed below pipe body 1. The contact plate 5 in the first detection mechanism 2 abuts against the bottom side wall of pipe body 1. The moving plate 14 in the third detection mechanism 4 abuts against the side wall of the limiting connecting plate 13 at the bottom of clamp 12, and the top of the moving plate 14 abuts against the bottom side wall of pipe body 1. The relative position of the contact plate 5 in the second detection mechanism 3 is adjusted by the adjusting component so that the contact plate 5 in the second detection mechanism 3 abuts against the side wall of pipe body 1. The moving rod 7 and sliding rod 16 in multiple detection components and adaptive component 11 are half inserted into the guide cylinder 6 and fixed cylinder 15, causing spring 1 9 and spring 2 17 to deform and store force. When pipe body 1 is displaced, it will squeeze the contact plate 5 and cause the moving rod 7 to move towards the guide cylinder. The moving rod 7 moves away from the contact plate 5, and the spring 9 contracts to keep the contact plate 5 in contact with the contact plate 5. During the movement of the moving rod 7, the detection plate 8 will move. The displacement sensor 10 detects the change in distance between the detection plate 8 and the displacement sensor 10 to obtain the displacement of the pipe body 1. When the pipe body 1 moves in a direction different from the moving direction of the moving rod 7 in the third detection mechanism 4, the pipe body 1 will squeeze or move away from the sliding rod 16. The deformation of the spring 17 will keep the moving plate 14 in contact with the limiting connecting plate 13. If the displacement of the pipe body 1 is in the detection direction of the second detection mechanism 3, since the lateral length of the limiting connecting plate 13 is greater than or equal to the detectable displacement length of the second detection mechanism 3, the limiting connecting plate 13 will still keep in contact with the moving plate 14 after the displacement.
[0031] By incorporating the adaptive component 11, the limiting connecting plate 13, and the moving plate 14, the moving plate 14 can always maintain contact with the limiting connecting plate 13 when the pipeline body 1 undergoes a displacement in a direction different from that of the moving rod 7 in the third detection mechanism 4. This ensures that the displacement of the pipeline body 1 is transmitted to the moving rod 7, thereby guaranteeing the accuracy of the displacement detection by the third detection mechanism 4.
[0032] By connecting and adjusting the guide cylinders 6 of the first detection mechanism 2, the second detection mechanism 3 and the third detection mechanism 4, it is not necessary to make a frame corresponding to the specifications of the main pipe body 1. The structure is compact and easy to install and carry.
[0033] Example 2
[0034] A real-time displacement monitoring device for heating pipelines, this embodiment is based on embodiment 1 and makes the following improvements, such as... Figure 4As shown, the adjustment assembly includes a connecting rod 18 and a rotating block 19. The connecting rod 18 is fixedly connected to the side wall of the contact plate 5, and the rotating block 19 is rotatably connected to one end of the moving rod 7. The rotating block 19 and the connecting rod 18 are provided with threaded holes at opposite ends, and the same adjustment rod 20 is threadedly connected to the inner walls of the two threaded holes. The adjustment rod 20 includes multiple types according to the pipe specifications.
[0035] During installation, select the corresponding adjusting rod 20 according to the specifications of the main pipe body 1. One end of the adjusting rod 20 is threadedly connected to the connecting rod 18. Then, rotate the rotating block 19 to thread it with the adjusting rod 20, thus completing the adjustment of the position of the contact plate 5 in the second detection mechanism 3.
[0036] The connection can be completed by rotating the adjusting rod 20 or the rotating block 19, which is equipped with an adjusting component, making it easy to adjust the position of the contact plate 5 according to the specifications of the pipe body 1.
[0037] Working principle: During installation, clamp 12 is fixed to the surface of pipe body 1. The connectors of multiple detection components are placed below pipe body 1. The contact plate 5 in the first detection mechanism 2 abuts against the bottom side wall of pipe body 1. The moving plate 14 in the third detection mechanism 4 abuts against the side wall of the limiting connecting plate 13 at the bottom of clamp 12, and the top of the moving plate 14 abuts against the bottom side wall of pipe body 1. The corresponding adjusting rod 20 is selected according to the specifications of pipe body 1. One end of the adjusting rod 20 is threadedly connected to the connecting rod 18. Then, the rotating block 19 is rotated to thread the rotating block 19 with the adjusting rod 20, adjusting the relative position of the contact plate 5 in the second detection mechanism 3 so that the contact plate 5 in the second detection mechanism 3 abuts against the side wall of pipe body 1. Half of the moving rod 7 and sliding rod 16 in multiple detection components and adaptive component 11 are inserted into the guide cylinder 6 and fixed cylinder 15, so that spring 1 9 and spring 2 17 are shaped. The variable-force storage mechanism allows the pipe body 1 to move when it is displaced. This causes the contact plate 5 to be pressed, moving the moving rod 7 into or away from the guide cylinder 6. The spring 9 contracts to keep the contact plate 5 in contact with the pipe body 1. During the movement of the moving rod 7, the detection plate 8 moves. The displacement sensor 10 detects the change in distance between the detection plate 8 and the displacement sensor 10 to obtain the displacement of the pipe body 1. When the pipe body 1 moves in a direction different from the moving direction of the moving rod 7 in the third detection mechanism 4, the pipe body 1 will press against or move away from the sliding rod 16. The deformation of the spring 17 keeps the moving plate 14 in contact with the limiting connecting plate 13. If the displacement of the pipe body 1 is in the detection direction of the second detection mechanism 3, the lateral length of the limiting connecting plate 13 is greater than or equal to the detectable displacement length of the second detection mechanism 3. Therefore, the limiting connecting plate 13 will still be in contact with the moving plate 14 after the displacement.
[0038] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A real-time displacement monitoring device for a heating pipeline, comprising a first detection mechanism (2), a second detection mechanism (3), and a third detection mechanism (4) disposed on the side wall of the pipeline body (1), characterized in that, The first detection mechanism (2), the second detection mechanism (3), and the third detection mechanism (4) all include detection components with the same structure. The detection components include a guide cylinder (6) and a moving rod (7). The moving rod (7) is slidably fitted to one end of the guide cylinder (6). A detection plate (8) is fixed to one end of the moving rod (7) and slidably fitted to the inner wall of the guide cylinder (6). A spring (9) is sleeved on the outer wall of one end of the moving rod (7). The two ends of the spring (9) are respectively connected to the detection plate (8) and the inner wall of the guide cylinder (6). A displacement sensor (10) is fixed to the inner wall of the end of the guide cylinder (6) away from the moving rod (7). A contact plate (5) is connected to one end of the moving rod (7) of the first detection mechanism (2) and the second detection mechanism (3). The moving rod (7) in the second detection mechanism (3) is connected to the contact plate (5) through an adjustment component.
2. The real-time displacement monitoring device for heating pipelines according to claim 1, characterized in that, The third detection mechanism (4) also includes an adaptive component (11) and a clamp (12). The adaptive component (11) includes a fixed cylinder (15) and a sliding rod (16). The fixed cylinder (15) is fixed to one end of the moving rod (7) in the third detection mechanism (4).
3. The real-time displacement monitoring device for heating pipelines according to claim 2, characterized in that, The sliding rod (16) is slidably fitted to the inner wall of one end of the fixed cylinder (15). The bottom end of the sliding rod (16) is connected to a second spring (17), the other end of the second spring (17) is connected to the inner wall of the fixed cylinder (15), and the other end of the sliding rod (16) is connected to a moving plate (14).
4. The real-time displacement monitoring device for heating pipelines according to claim 3, characterized in that, The clamp (12) is fixed to the outer wall of the pipe body (1). The bottom outer wall of the clamp (12) is fixedly connected to the limiting connection plate (13). The outer wall of one side of the moving plate (14) is in contact with the outer wall of the limiting connection plate (13). The lateral length of the limiting connection plate (13) is greater than or equal to the detectable displacement length of the second detection mechanism (3).
5. A real-time displacement monitoring device for heating pipelines according to claim 1, characterized in that, The length of the contact plate (5) is greater than or equal to the detectable displacement length of the first detection mechanism (2) and the second detection mechanism (3).
6. The real-time displacement monitoring device for heating pipelines according to claim 1, characterized in that, The displacement sensors (10) in the first detection mechanism (2), the second detection mechanism (3) and the third detection mechanism (4) are all electrically connected to the external display alarm component.
7. A real-time displacement monitoring device for heating pipelines according to claim 1, characterized in that, The adjustment assembly includes a connecting rod (18) and a rotating block (19). The connecting rod (18) is fixedly connected to the side wall of the contact plate (5), and the rotating block (19) is rotatably connected to one end of the moving rod (7).
8. A real-time displacement monitoring device for heating pipelines according to claim 7, characterized in that, The rotating block (19) and the connecting rod (18) have threaded holes at one end, and the inner walls of the two threaded holes are threaded with the same adjusting rod (20).
Citation Information
Patent Citations
Displacement monitoring system
CN220751083U