Pressure pipeline leakage monitoring device

Abstract

The utility model provides a pressure pipeline leakage monitoring device, which relates to the technical field of pipeline leakage prevention monitoring and comprises a tray and a pressure pipeline, the top of the tray is fixedly connected with a square frame, the square frame is sleeved outside the pressure pipeline, the interiors of two sides of the square frame are respectively connected with two opposite flexible metal strips in a sliding manner, and the flexible metal strips are connected with the tray. The two opposite flexible metal strips are integrally formed into an arc shape, the two opposite flexible metal strips and the pressure pipeline are coaxially arranged, the two opposite flexible metal strips are arranged in a staggered mode along the axis of the pressure pipeline, and the two opposite flexible metal strips and the pressure pipeline are installed in a sleeving mode. Sundries such as deadwood and gravels can be effectively prevented from falling into the tray, gravity detection false alarm triggered by external sundries is avoided, and the monitoring accuracy is improved; meanwhile, the flexible metal strip ascends and descends along the threaded rod, and the monitoring requirements of pipelines with different pipe diameters are met.

Description

Technical Field

[0001] This utility model relates to the field of pipeline leak prevention and monitoring technology, and in particular to a pressure pipeline leak monitoring device. Background Technology

[0002] Traditional pipeline leak monitoring devices have become increasingly inadequate over time due to the inherent limitations of each method. For example, the flow balance method and pressure difference method are unable to pinpoint the leak location, the stress wave method is difficult to detect over long distances, and the in-pipe detector method is expensive and requires strict pipeline conditions.

[0003] Therefore, there is a pressure fluid pipeline leakage prevention monitoring device, with publication number CN213272074U. When working, the motor is first started to drive the rotation of the rotating shaft, which in turn drives the second gear to rotate, which in turn drives the first gear to rotate, which in turn drives the roller to rotate, so that the device can move on the pipeline. When there is a liquid leak inside the pipeline, when the device moves to this point, the liquid falls onto the tray and hits the tray. The tray drives the second connecting rod, the spring and the first connecting rod to move downward. The gravity detector detects the change in gravity and starts the alarm.

[0004] However, when the device is operating outdoors, if there is wind, the wind will blow debris such as dead branches and gravel into the tray, which will also trigger the gravity detector alarm, resulting in a low detection accuracy of the device. Utility Model Content

[0005] The purpose of this invention is to solve the problems existing in the prior art by proposing a pressure pipeline leakage monitoring device.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a pressure pipeline leakage monitoring device, comprising a tray and a pressure pipeline, wherein a square frame is fixedly connected to the top of the tray, the square frame is sleeved on the outside of the pressure pipeline, and two opposing flexible metal strips are slidably connected to the interior of each side of the square frame, the two opposing flexible metal strips are integrally formed into an arc shape and are arranged coaxially with the pressure pipeline, the two opposing flexible metal strips are staggered along the axis of the pressure pipeline, the two opposing flexible metal strips are sleeved and installed with the pressure pipeline, a filter screen is fixedly connected to the outer arc surface of the flexible metal strip, a filter screen roll is fixedly connected to the other end of the filter screen and rotatably connected to the square frame, lifting blocks are fixedly connected to both ends of the flexible metal strip and slidably connected to the square frame, a threaded rod is rotatably connected to the square frame corresponding to the position of the lifting block, the threaded rod is threadedly engaged with the lifting block, and filter plates are fixedly installed on the other sides of the square frame.

[0007] Preferably, the filter roll is located on the outside of the frame, and the frame has a through groove for the filter to pass through.

[0008] Preferably, a transmission mechanism is provided between the threaded rods on both sides of any flexible metal strip. The transmission mechanism includes a pulley fixed to one end of the threaded rod, and the two pulleys are driven by a belt strip.

[0009] Preferably, a motor for driving the threaded rod to rotate is fixedly connected to the outside of the frame.

[0010] Preferably, it also includes a traveling wheel, which comprises three rollers of different sizes that are fixed to each other.

[0011] Preferably, the three rollers are connected in series from largest to smallest, with the smaller roller positioned close to the pressure pipe.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0013] 1. In this utility model, by setting a filter plate and a filter structure composed of an arc-shaped flexible metal strip and a filter screen, it is possible to effectively block debris such as dead branches and sand from falling into the tray, avoid false alarms caused by external debris triggering gravity detection, and improve the monitoring accuracy; at the same time, the flexible metal strip moves up and down along the threaded rod to adapt to the monitoring needs of pipes with different diameters.

[0014] 2. In this utility model, by setting up a traveling wheel composed of three rollers of different sizes connected in series, when the pipe diameter is small, the inner small roller is close to the pipe and the outer large roller is suspended in the air. When the pipe diameter is large, the outer large roller is close to the pipe and the inner small roller is suspended in the air, so that the device can adapt to the curved surface of pipes of different diameters and ensure smooth movement on the pipe. Attached Figure Description

[0015] Figure 1 This utility model provides a three-dimensional structural schematic diagram of a pressure pipeline leakage monitoring device;

[0016] Figure 2 This is a side-sectional three-dimensional structural diagram of the filter screen in this utility model;

[0017] Figure 3 This is a three-dimensional structural diagram of the roller in this utility model;

[0018] Figure 4 This is a three-dimensional structural diagram of the flexible metal strip in this utility model.

[0019] Legend: 1. Filter plate; 2. Square frame; 3. Threaded rod; 4. Filter screen roll; 5. Flexible metal strip; 6. Pressure pipe; 7. Walking wheel; 701. Roller; 8. Through groove; 9. Tray; 10. Filter screen; 11. Lifting block; 12. Motor; 13. Pulley. Detailed Implementation

[0020] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0021] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0022] like Figure 1-4 As shown, a pressure pipeline leakage monitoring device includes a tray 9 and a pressure pipeline 6. A square frame 2 is fixedly connected to the top of the tray 9 and is fitted over the pressure pipeline 6. Two opposing flexible metal strips 5 are slidably connected to the inside of both sides of the square frame 2. The two opposing flexible metal strips 5 are integrally formed into an arc shape and are arranged coaxially with the pressure pipeline 6. The two opposing flexible metal strips 5 are staggered along the axis of the pressure pipeline 6 and are fitted and installed with the pressure pipeline 6. A filter screen 10 is fixedly connected to the outer arc surface of the flexible metal strip 5. A filter screen roller 4, which is rotatably connected to the other end of the filter screen 10, is fixedly connected to the other end of the filter screen 10. Lifting blocks 11, which are slidably connected to the square frame 2, are fixedly connected to both ends of the flexible metal strip 5. A threaded rod 3 is rotatably connected to the square frame 2 corresponding to the position of the lifting block 11. The threaded rod 3 is threadedly engaged with the lifting block 11. Filter plates 1 are fixedly installed on the other sides of the square frame 2. The filter screen roller 4 is located on the outside of the square frame 2. A through groove 8 is provided on the square frame 2 for the filter screen 10 to pass through.

[0023] In this technical solution, the tray 9 is used to receive liquids that may leak from the pressure pipeline 6. The frame 2 is fitted outside the pressure pipeline 6 to provide a protective frame for the entire monitoring device. Furthermore, the two opposing flexible metal strips 5 can conform to the shape of the pipeline, which can more comprehensively cover the outer surface of the pipeline. The filter screen 10 can filter out debris such as dead branches and sand, preventing them from falling into the tray 9 and triggering false alarms, thus improving the monitoring accuracy. By setting the filter screen reel 4, which is located outside the frame 2, the filter screen 10 can be rolled up or unrolled by rotating it. In addition, the threaded rod 3 is threadedly engaged with the lifting block 11. Rotating the threaded rod 3 can drive the lifting block 11 to move up and down, thereby realizing the lifting and lowering of the flexible metal strips 5.

[0024] It is worth noting that during the movement of the flexible metal strip 5, if the flexible metal strip 5 moves closer to the pressure pipe 6 and forms an arc surface with the same radius as the pressure pipe 6 after it comes into contact with the pressure pipe 6, then before the traveling wheel 7 drives the entire device to move, it is necessary to control the threaded rod 3 to move in the opposite direction a certain number of times to ensure that the flexible metal strip 5 slides in the opposite direction a certain distance, so that the inner side of the flexible metal strip 5 and the outer side of the pressure pipe 6 are at a certain distance, so that the device can slide smoothly along the pressure pipe 6.

[0025] like Figure 4 As shown, a transmission mechanism is provided between the threaded rods 3 on both sides of any flexible metal strip 5. The transmission mechanism includes a pulley 13 fixed to one end of the threaded rod 3. The two pulleys 13 are driven by a belt strip. A motor 12 for driving the threaded rod 3 to rotate is fixedly connected to the outside of the frame 2.

[0026] In this technical solution, when one of the threaded rods 3 rotates, it can drive the other threaded rod 3 to rotate through the pulley 13 and belt. When the two threaded rods 3 rotate, they can drive the lifting block 11 to rise and fall, thereby driving the flexible metal strip 5 to rise and fall. By setting a motor 12, the main shaft of the motor 12 is fixed to one end of the threaded rod 3. When the motor 12 works and the main shaft rotates, it will drive one of the threaded rods 3 to rotate. In this solution, a corresponding number of motors 12 are set at the top and bottom of the frame 2, and the motors 12 are preferably servo motors.

[0027] It should be noted that the pulleys and belts in this scheme are all set as synchronous pulleys and synchronous belts.

[0028] like Figure 3 As shown, it also includes a traveling wheel 7, which includes three rollers 701 that are fixed to each other and of different sizes. The three rollers 701 are connected in series from large to small, and the smaller rollers 701 are located close to the pressure pipe 6.

[0029] In this technical solution, when the diameter of the pressure pipe 6 is small (smaller than the distance between the two outer rollers 701), the smaller inner roller 701 directly contacts the pipe surface and fits the pipe arc surface with its smaller diameter, while the larger outer roller 701 is suspended. The same applies when the pressure pipe 6 is large, thus making it easy for the traveling wheel 7 to be adapted to pressure pipes 6 of different sizes.

[0030] Working principle: The contact roller 701 is automatically adjusted according to the pipe diameter to ensure that the device is placed stably on the pipe. The motor 12 drives the threaded rod 3 to rotate, and the pulley 13 and belt drive make the threaded rods 3 on both sides rotate synchronously, driving the lifting block 11 to move up and down, thereby adjusting the position of the flexible metal strip 5 so that it fits against the pressure pipe 6 and then slides in the opposite direction to maintain a certain distance from the outside of the pipe. During the movement, if the pressure pipe 6 leaks, the liquid drips onto the tray 9, while the filter screen 10 and filter plate 1 can block the entry of debris such as dead branches and sand, avoiding false alarms.

[0031] The wiring diagram of the motor 12 in this utility model is common knowledge in the field, and its working principle is a well-known technology. The appropriate model is selected according to actual use. Therefore, the control method and wiring layout of the motor 12 will not be explained in detail.

[0032] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the present utility model.

Claims

1. A pressure pipeline leakage monitoring device, comprising a tray (9) and a pressure pipeline (6), characterized in that: A square frame (2) is fixedly connected to the top of the tray (9). The square frame (2) is fitted onto the outside of the pressure pipe (6). Two opposing flexible metal strips (5) are slidably connected to the inside of both sides of the square frame (2). The two opposing flexible metal strips (5) are integrally formed into an arc shape and are coaxial with the pressure pipe (6). The two opposing flexible metal strips (5) are staggered along the axis of the pressure pipe (6). The two opposing flexible metal strips (5) are fitted onto the pressure pipe (6). A filter screen (10) is fixedly connected to the outer arc surface of the flexible metal strip (5). The other end of the filter screen (10) is fixedly connected to a filter screen roller (4) that is rotatably connected to the frame (2). Both ends of the flexible metal strip (5) are fixedly connected to lifting blocks (11) that are slidably connected to the frame (2). The frame (2) is rotatably connected to a threaded rod (3) at the position corresponding to the lifting block (11). The threaded rod (3) is threadedly engaged with the lifting block (11). Filter plates (1) are fixedly installed on the other sides of the frame (2).

2. The pressure pipeline leakage monitoring device according to claim 1, characterized in that: The filter roll (4) is located on the outside of the frame (2), and the frame (2) has a through groove (8) for the filter (10) to pass through.

3. The pressure pipeline leakage monitoring device according to claim 1, characterized in that: A transmission mechanism is provided between the threaded rods (3) on both sides of any flexible metal strip (5). The transmission mechanism includes a pulley (13) fixed to one end of the threaded rod (3). The two pulleys (13) are driven by a belt strip.

4. The pressure pipeline leakage monitoring device according to claim 1, characterized in that: A motor (12) for driving the threaded rod (3) to rotate is fixedly connected to the outside of the frame (2).

5. The pressure pipeline leakage monitoring device according to claim 1, characterized in that: It also includes a traveling wheel (7), which comprises three rollers (701) that are fixed to each other and of different sizes.

6. The pressure pipeline leakage monitoring device according to claim 5, characterized in that: The three rollers (701) are connected in series from largest to smallest, and the smaller roller (701) is placed close to the pressure pipe (6).

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