A pipeline leakage detection system

Abstract

The invention relates to a pipeline leakage detection system, comprising a detection mechanism and a reeling mechanism; the detection mechanism is located in the pipeline; the reeling mechanism is arranged on a branch pipe of the pipeline; an LED lamp, a camera unit, a recording unit, a PLC controller, a tracer, a memory and a power supply are arranged on the detection mechanism; the PLC controller is respectively connected with the LED lamp, the camera unit, the recording unit, the tracer, the memory and the power supply electrical signal; the reeling mechanism comprises a reeling platform arranged on the branch pipe and a reel fixed on the reeling platform; the reel comprises a reeling shell with a horizontal axis and a hollow interior; a horizontal hollow reeling outlet is connected to the upper end of the reeling shell along a tangential direction; a reeling shaft is rotatably arranged at the axis center of the reeling shell, and two ends of the reeling shaft pass through two side walls of the reeling shell; a traction rope is wound on the reeling shaft, and after the traction rope slides through the reeling outlet, the end is fixed to the detection mechanism.

Description

Technical Field

[0001] The invention relates to a pipeline leakage detection system, belonging to the technical field of pipeline detection. Background Art

[0002] Underground drainage pipes are an important way to remove urban sewage and rainwater. The criss-crossing underground drainage pipes are an extremely important municipal facility. They play an irreplaceable role in the stable development of the city. Their normal operation is an important guarantee for the normal order of urban production and life. With the continuous advancement of urbanization, the aging and leakage of underground drainage pipes have occurred repeatedly, resulting in serious problems such as waterlogging and landslides on some roads, which has brought great troubles to people's quality of life. In order to ensure the normal operation of the pipeline and increase the life of the pipeline, it is necessary to frequently understand the internal condition of the pipeline. However, since most of these pipelines are buried underground or in the walls of buildings, the internal space of the pipeline is narrow, the environment is complex, and there are dangerous sources. Therefore, monitoring devices such as cameras are generally used to collect images and data inside the pipeline in order to monitor the internal situation of the pipeline in real time.

[0003] For example, the Chinese utility model patent "Non-traction Pipeline Detection System" with authorization announcement number CN209705738U relates to a non-traction pipeline detection system, including a detection device placed in the pipeline and a winding rack arranged outside the pipeline and connected to the detection device by a cable; the detection device includes a camera assembly connected to the cable electrical signal, a protective mechanism mounted outside the camera assembly, and at least two sets of mobile mechanisms detachably fixed outside the protective mechanism; the camera assembly includes a camera and a lighting lamp providing a light source for the camera; the protective mechanism includes a protective cover mounted outside the camera assembly and a cover mounted inside the protective cover away from one end of the winding rack; an avoidance hole for camera observation is provided in the middle of the cover, and a notch for light emitted by the lighting lamp to pass through is provided at the lower end of the cover; the mobile mechanism includes a fixing ring detachably fixed to the outer wall of the protection mechanism and at least three support arms; one end of the support arm is hinged to the outer wall of the fixing ring, and the other end is hinged to a wheel; the wheels are close to the inner wall of the pipeline.

[0004] However, in the above-mentioned non-traction pipeline detection system, the detection device is only provided with a camera and a searchlight, and no other detection components are provided, resulting in that it can only collect images and data inside the pipeline, and cannot further detect other conditions inside the pipeline; secondly, the data collected by the camera needs to be transmitted to the signal receiving terminal through the video data line in the cable, which will require the cable to be made relatively thick in order to accommodate and ensure the safety of the video data line in the cable, and then the winding frame for winding the cable needs to be made very large, which greatly reduces the portability. Summary of the invention

[0005] In order to overcome the above problems, the present invention provides a pipeline leakage detection system, which mainly includes a detection mechanism and a winding mechanism. The detection mechanism has built-in components such as a camera unit, a recording unit, a PLC controller, a tracer, and a memory, which can collect data information inside the pipeline more comprehensively and completely, and temporarily store it in the memory; at the same time, the traction line only plays a traction role, and there is no need to build in a data line, which can greatly reduce the weight of the wire, reduce the volume of the winding frame, and improve mobility and portability.

[0006] The technical solution of the present invention is as follows:

[0007] A pipeline leakage detection system comprises a detection mechanism and a reeling mechanism; the detection mechanism is located in the pipeline; the reeling mechanism is arranged on the branch pipe of the pipeline; the detection mechanism is provided with an LED lamp, a camera unit, a recording unit, a PLC controller, a tracer, a memory and a power supply; the PLC controller is respectively connected to the LED lamp, the camera unit, the recording unit, the tracer, the memory and the power supply by electrical signals; the reeling mechanism comprises a reeling platform arranged on the branch pipe and a reel fixed on the reeling platform; the reel comprises a reeling shell with a horizontal axis and a hollow interior; the upper end of the reeling shell is connected to a horizontal hollow reeling outlet along a tangential direction; a reeling shaft is rotatably arranged at the axis center of the reeling shell, and the two ends of the reeling shaft pass through the two side walls of the reeling shell; a traction rope is wound around the reeling shaft, and after the traction rope slides out of the reeling outlet, the end is fixed to the detection mechanism.

[0008] Furthermore, the retracting platform includes a horizontal platform base plate and a platform side plate vertically fixed to the upper end of one side of the platform base plate; the lower end of the retracting shell is fixed to the platform base plate; the end of the retracting shaft is rotatably arranged on the platform side plate; a fixing screw is vertically fixed to the lower end of the platform base plate; the fixing screw is threadedly fixed to the upper flange of the branch pipe; the traction rope is marked with scale lines, and the zero scale line is located at the connection between the traction rope and the detection mechanism.

[0009] Furthermore, the detection mechanism includes a front shell and a rear shell arranged behind the front shell; the front shell is a streamlined structure with a small front and a large rear; the front shell includes a front shell body, a lens and a rear plate; the front shell body is hollow inside and has an open front end; the transparent lens is fixed to the open end of the front end of the front shell body; the rear plate is closed and fixed to the rear end of the front shell body; the rear shell includes a rear shell body and a rear cover; the rear shell body is horizontally hollow, the front end is connected to the rear plate, and the rear end is open; the rear cover is covered and fixed to the open end of the rear shell body; a plurality of LED lights are evenly spaced and arranged at intervals. At the front end of the front shell body, a circular array is arranged on the periphery of the lens; the camera unit and the recording unit are both accommodated in the front shell body, and the camera unit is located behind the lens; a temperature sensor and a pressure sensor are also respectively arranged on the periphery of the front end of the front shell body; the temperature sensor and the pressure sensor are respectively connected with the PLC controller by electrical signals; the power supply, the PLC controller, the tracer and the memory are all arranged in the rear shell body; a counterweight is also arranged on the lower inner part of the rear shell body; the traction rope is fixed to the rear cover; the outer periphery of the middle part of the front shell body is covered with a rubber sleeve.

[0010] Furthermore, a rear connecting groove is opened in the middle of the rear end of the rear plate; a connecting rod is fixed to the front end of the rear shell body; a connecting ball is fixed to the front end of the connecting rod; the connecting ball is accommodated in the rear connecting groove, and the connecting ball can move in the rear connecting groove.

[0011] Furthermore, a wing plate is provided at the rear end of the rear plate; a plurality of the wing plates are arranged in a circular array and are evenly spaced; the ends of the wing plates are spread outward; and a plurality of serrated grooves are provided at the ends of the wing plates.

[0012] Furthermore, a plurality of wheel grooves are evenly spaced on the outer circumference of the end of the front shell body; a pulley is rotatably arranged in each of the wheel grooves; and the outer side of the pulley protrudes from the outer surface of the front shell body.

[0013] Furthermore, the power supply is arranged near the back cover; the power supply includes a contact switch, a spring and an operating bolt; the contact switch is connected to the PLC controller by electrical signals; the contact switch is fixed in the rear shell; after the operating bolt passes through the back cover from the outside to the inside, the end is located at the lower rear side of the contact switch; a protrusion is fixed in the middle of one side of the contact switch close to the back cover; the middle of the spring is hinged to the protrusion; one end of the spring is fixed to the operating bolt, and the other end can contact the contact switch.

[0014] Furthermore, it also includes a tensioning mechanism arranged on the platform side panel; the tensioning mechanism includes a rocker arm, a tensioning screw, an adjusting knob, a belt, a driving wheel, a driven wheel and a motor; a transverse, arc-shaped adjusting slot is opened on the platform side panel; one end of the rocker arm is hinged on the platform side panel, and the other end is fixed with the tensioning screw; the tensioning screw passes horizontally through the adjusting slot; the tensioning screw can slide in the adjusting slot around the hinge between the rocker arm and the platform side panel; the adjusting knob is threadedly fixed on the tensioning screw, and the adjusting knob and the rocker arm are arranged on both sides of the platform side panel; the motor is fixed at the end of the rocker arm; the driving wheel is fixed on the output shaft of the motor; the driven wheel is fixed on the winding shaft; the driving wheel and the driven wheel are connected through the belt drive.

[0015] Furthermore, it also includes a synchronization mechanism arranged on the retracting shell; the synchronization mechanism includes a synchronization bracket, a driven shaft, a driving bevel gear, a driven bevel gear, an upper side plate, a sliding rod, a driving rod, a driven rod and a stabilizer; the synchronization bracket is fixed to the upper part of the retracting shell near the side plate of the platform; the vertical driven shaft is rotatably arranged on the synchronization bracket; the driving bevel gear is fixed to the retracting shaft; the driven bevel gear is fixed to the driven shaft and meshes with the driving bevel gear; the driven shaft After the upper end passes through the upper end of the synchronous bracket, it is fixed to one end of the active rod; the two upper side plates are respectively vertically fixed to the upper ends of both sides of the winding shell; the two ends of the horizontal sliding rod are respectively arranged at the inner upper ends of the two upper side plates; the stabilizer is slidably arranged on the sliding rod; an avoidance groove is horizontally penetrated on the upper side plate close to the side plate of the platform; one end of the driven rod is hinged to the active rod, and after the middle part passes through the avoidance groove, the other end is hinged to the lower end of the stabilizer; the traction rope slides through the stabilizer.

[0016] Furthermore, the stabilizer includes a slider, an extension rod and a lifting ring; the slider is slidably mounted on the slider; the lower end of the slider is hinged to the end of the driven rod; one end of the extension rod is fixed to the slider, and the other end is suspended in front of the rewinding outlet; the lifting ring is fixed below the end of the extension rod; the lifting ring is directly opposite to the front of the rewinding outlet, and the traction rope slides through the lifting ring.

[0017] The present invention has the following beneficial effects:

[0018] 1. The pipeline leakage detection system mainly includes a detection mechanism and a winding mechanism. The detection mechanism has built-in camera units, recording units, PLC controllers, tracers, memory and other components, which can collect data information inside the pipeline more comprehensively and completely, and temporarily store it in the memory; at the same time, the traction line only plays a traction role, and there is no need for a built-in data line, which can greatly reduce the weight of the wire, reduce the volume of the winding frame, and improve mobility and portability.

[0019] 2. The rear connecting groove is in the shape of a spherical shell, which can cover the connecting ball to prevent it from falling off; at the same time, the connecting ball can also move in the rear connecting groove, so that the front shell and the rear shell can be folded into a certain angle, so that the rear shell can swing, which is convenient for the detection mechanism to pass through some corners without being stuck.

[0020] 3. The spring piece and the convex block form a lever. After tightening the operating bolt and the end of the operating bolt pushes the lower end of the spring piece, the upper end of the spring piece is disengaged, the contact switch is disconnected, the power supply is in an open and closed state, and the units in the detection mechanism are no longer powered. After loosening the operating bolt and the end of the operating bolt pulls the lower end of the spring piece, the upper end of the spring piece presses against the contact switch, the contact switch is turned on, the power supply is turned on, and the units in the detection mechanism begin to be powered. The pipeline leakage detection system starts and starts working.

[0021] 4. Set up a tensioning mechanism. The tensioning screw can slide in the adjustment groove around the hinge between the rocker arm and the platform side plate, so as to adjust the tension of the belt to adapt to different water flow environments or motors under different speed conditions, ensure the stable speed of the winding shaft, and ensure that the detection mechanism is stable and good under the conditions of retraction and release.

[0022] 5. The synchronization mechanism and stabilizer mainly move back and forth on the slide bar through the slider, thereby driving the lifting ring to move back and forth in front of the reeling outlet. In this way, when the reeling shaft reels in and releases the traction rope, the distribution on the reeling shaft is more even, which is convenient for the storage of the traction rope. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the use state of the present invention.

[0024] Figure 2 It is a schematic diagram of the overall structure of the present invention.

[0025] Figure 3 It is a structural schematic diagram of the detection mechanism of the present invention.

[0026] Figure 4 for Figure 3 main view.

[0027] Figure 5 for Figure 3 Top view of the .

[0028] Figure 6 It is a partial cross-sectional view of the detection mechanism.

[0029] Figure 7 for Figure 6 A partial enlarged view of point A.

[0030] Figure 8 Schematic diagram of the internal structure of the rear shell.

[0031] Fig. 9 for Figure 8 A local enlarged view of point B.

[0032] Fig.10 It is a structural schematic diagram of the winding mechanism of the present invention.

[0033] Fig.11 for Fig.10 A partial enlarged view of point C.

[0034] Fig.12 This is a schematic diagram of the structure of the reeling mechanism from another angle.

[0035] Fig.13 for Fig.12 A local enlarged view of point D.

[0036] Fig.14 for Fig.12 A local enlarged view of point E.

[0037] Fig.15 for Fig.12 main view.

[0038] Fig.16 for Fig.12 Right view of .

[0039] Fig.17 for Fig.12 Top view of the .

[0040] The reference numerals in the figure are as follows:

[0041] 1. Pipe; 11. Branch pipe; 12. Upper flange; 2. Detection mechanism; 21. Front shell; 211. Front shell body; 212. Lens; 213. Rear plate; 214. Wheel groove; 215. Rear connection groove; 22. Rear shell; 221. Rear shell body; 222. Connecting rod; 223. Connecting ball; 224. Rear cover; 23. Pulley; 24. Wing plate; 25. Sawtooth groove; 26. Rubber sleeve; 27. Counterweight; 3. Retracting mechanism; 31. Retracting platform; 311. Platform bottom plate; 312. Platform side plate; 313. Fixing screw; 314. Adjusting groove; 32. Retractor; 321. Retracting shell; 322. Retracting outlet; 323. Retracting shaft; 324. Traction rope; 4. Power supply; 41. Contact switch; 42, bump; 43, spring; 44, operating bolt; 51, LED light; 52, camera unit; 53, recording unit; 54, temperature sensor; 55, pressure sensor; 56, PLC controller; 57, tracer; 58, memory; 6, tensioning mechanism; 61, rocker arm; 62, tensioning screw; 63, adjustment knob; 64, belt; 65, driving wheel; 66, driven wheel; 67, motor; 7, synchronization mechanism; 71, synchronization bracket; 72, driven shaft; 73, driving bevel gear; 74, driven bevel gear; 75, upper side plate; 76, slide rod; 77, driving rod; 78, driven rod; 79, avoidance groove; 8, stabilizer; 81, slider; 82, extension rod; 83, lifting ring. DETAILED DESCRIPTION

[0042] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0043] See also Figure 1-17 A pipeline leakage detection system includes a detection mechanism 2 and a reeling mechanism 3; the detection mechanism 2 is located in a pipeline 1; the reeling mechanism 3 is arranged on a branch pipe 11 of the pipeline 1; the detection mechanism 2 is provided with an LED light 51, a camera unit 52, a recording unit 53, a PLC controller 56, a tracer 57, a memory 58 and a power supply 4; the PLC controller 56 is respectively connected to the LED light 51, the camera unit 52, the recording unit 53, the tracer 57, the memory 58 and the power supply 4 by electrical signals; the reeling mechanism 3 includes a The winding platform 31 on the branch pipe 11 and the reel 32 fixed on the winding platform 31; the reel 32 includes a winding shell 321 with a horizontal axis and a hollow interior; the upper end of the winding shell 321 is connected to a horizontal hollow winding outlet 322 along the tangential direction; a winding shaft 323 is rotatably arranged at the axis center of the winding shell 321, and the two ends of the winding shaft 323 pass through the two side walls of the winding shell 321; a traction rope 324 is wound on the winding shaft 323, and after the traction rope 324 slides out of the winding outlet 322, the end is fixed to the detection mechanism 2.

[0044] According to the above description, the pipeline leakage detection system mainly includes a detection mechanism 2 in the pipeline 1 for observing the internal situation of the pipeline 1, and a reeling mechanism 3 arranged on the branch pipe 11 for retracting and releasing the detection mechanism 2. The detection mechanism 2 is integrated with the main components required for the detection work, such as the LED lamp 51, the camera unit 52, the recording unit 53, the PLC controller 56, the tracer 57, the memory 58 and the power supply 4; the LED lamp 51 provides lighting, the camera unit 52 obtains the image data inside the pipeline 1, the recording unit 53 collects the audio data inside the pipeline 1, and the tracer 57 provides position information and sends signals to facilitate the staff to locate the detection mechanism 2 in the pipeline 1; the power supply 4 supplies power to other components, and the PLC controller 56 controls the working status of other components; the memory 58 is used to store the collected data information. The reeling mechanism 3 includes a reeling platform 31 and a reel 32. The reeling platform 31 is arranged on the branch pipe 11, and is used to place the reel 32; the outer shell of the reel 32 is similar to a whistle, and includes a reeling shell 321, a reeling outlet 322, and a reeling shaft 323; the traction rope 324 is wound around the reeling shaft 323, and one end is fixed to the detection mechanism 2 after sliding through the reeling outlet 322. In the detection mechanism 2, since a memory 58 is provided, the detection mechanism 2 can store data directly in the memory 58, and the data in the memory 58 can be checked after the detection mechanism 2 is recovered, thereby avoiding the existing pipeline detector, in which the data line is built into the traction rope 324, which greatly increases the weight and specifications of the traction rope 324 and reduces the portability. The pipeline leakage detection system does not need to set up an additional data line in the traction rope 324, which greatly reduces the weight of the wire, reduces the volume of the winding frame, and improves the mobility and portability of the pipeline leakage detection system.

[0045] In particular, the power source for driving the reel shaft 323 to rotate may be manual (ie, by rotating the handle) or automatic (ie, driven by the motor 67).

[0046] Furthermore, the retracting platform 31 includes a horizontal platform bottom plate 311 and a platform side plate 312 vertically fixed to the upper end of one side of the platform bottom plate 311; the lower end of the retracting housing 321 is fixed to the platform bottom plate 311; the end of the retracting shaft 323 is rotatably arranged on the platform side plate 312; a fixing screw 313 is vertically fixed to the lower end of the platform bottom plate 311; the fixing screw 313 is threadedly fixed to the upper flange 12 of the branch pipe 11; the traction rope 324 is marked with scale lines, and the zero scale line is located at the connection between the traction rope 324 and the detection mechanism 2. The retracting platform 31 is fixed to the upper flange 12 of the branch pipe 11 by the fixing screw 313, which is stable and reliable and easy to disassemble. The end of the retracting shaft 323 is connected to the platform side plate 312, which can provide a certain support effect for the retracting shaft 323. The traction rope 324 is marked with scale lines in centimeters, which can intuitively indicate the released length of the traction rope 324, making it easy for the staff to understand how far the detection mechanism 2 has advanced. In conjunction with the tracer 57, the detection mechanism 2 can be quickly positioned.

[0047] Furthermore, the detection mechanism 2 includes a front shell 21 and a rear shell 22 arranged behind the front shell 21; the front shell 21 is a streamlined structure with a small front and a large rear; the front shell 21 includes a front shell body 211, a lens 212 and a rear plate 213; the front shell body 211 is hollow inside and has an open front end; a transparent lens 212 is fixed to the open end of the front end of the front shell body 211; the rear plate 213 is closed and fixed to the rear end of the front shell body 211; the rear shell 22 includes a rear shell body 221 and a rear cover 224; the rear shell body 221 is horizontally hollow, connected to the rear plate 213 at the front end, and open at the rear end; the rear cover 224 is covered and fixed to the open end of the rear shell body 221; a plurality of LED lights 51 are evenly spaced and arranged At the front end of the front shell body 211, a circular array is arranged on the periphery of the lens 212; the camera unit 52 and the recording unit 53 are both accommodated in the front shell body 211, and the camera unit 52 is located behind the lens 212; a temperature sensor 54 and a pressure sensor 55 are also provided on the periphery of the front end of the front shell body 211; the temperature sensor 54 and the pressure sensor 55 are respectively connected with the PLC controller 56 by electrical signals; the power supply 4, the PLC controller 56, the tracer 57 and the memory 58 are all arranged in the rear shell body 221; a counterweight 27 is also provided on the lower inner part of the rear shell body 221; the traction rope 324 is fixed to the rear cover 224; the outer periphery of the middle part of the front shell body 21 is covered with a rubber sleeve 26.

[0048] According to the above description, the detection mechanism 2 includes a front shell 21 and a rear shell 22 arranged behind the front shell 21. The front shell 21 is located in the front and has a streamlined structure with a small front and a large rear, which can reduce resistance and facilitate the detection mechanism 2 to move forward in the pipeline 1; the front shell 21 includes a front shell body 211, a lens 212 and a rear plate 213, the front shell body 211 is hollow inside, and has a built-in camera unit 52 and a recording unit 53; a temperature sensor 54 and a pressure sensor 55 are also respectively arranged on the outer periphery of the front end of the front shell body 211, which are used to detect temperature data and water pressure. The rear shell 22 includes a rear shell body 221 and a rear cover 224, and the rear shell body 221 and the rear cover 224 are detachable and fixed. The rear shell body 221 is horizontally hollow, and has a built-in power supply 4, a PLC controller 56, a tracer 57 and a memory 58. The middle periphery of the front shell body 21 is covered with a rubber sleeve 26, which can play a protective and shock-absorbing role to a certain extent; a counterweight block 27 is also provided on the lower inner part of the rear shell body 221, so that the detection mechanism 2 can be submerged in the middle layer of the water flow instead of floating on the water surface.

[0049] Specifically, the outer diameter of the front housing 21 is greater than the outer diameter of the rear housing 22 .

[0050] In particular, components such as the camera unit 52, the recording unit 53, the temperature sensor 54 and the pressure sensor 55 mainly play the role of detection and data collection, so they are placed in the front shell 21 to facilitate data collection and improve accuracy; components such as the power supply 4, the PLC controller 56, the tracer 57 and the memory 58 are arranged in the rear shell 22 to avoid interference with the components in the front shell 21.

[0051] Furthermore, a rear connecting groove 215 is provided in the middle of the rear end of the rear plate 213; a connecting rod 222 is fixed at the front end of the rear shell body 221; a connecting ball 223 is fixed at the front end of the connecting rod 222; the connecting ball 223 is accommodated in the rear connecting groove 215, and the connecting ball 223 can move in the rear connecting groove 215. The rear connecting groove 215 is in the shape of a spherical shell, which can cover the connecting ball 223 to prevent the connecting ball 223 from falling off; at the same time, the connecting ball 223 can also move in the rear connecting groove 215, so that the front shell 21 and the rear shell 22 can be folded at a certain angle, and the rear shell 22 can swing, which is convenient for the detection mechanism 2 to pass through some corners without being stuck.

[0052] Furthermore, a wing plate 24 is also provided at the rear end of the rear plate 213; a plurality of wing plates 24 are arranged in a circular array and are evenly spaced; the ends of the wing plates 24 are arranged to spread outward; and a plurality of sawtooth grooves 25 are also provided at the ends of the wing plates 24. The wing plates 24 are provided mainly because the detection mechanism 2 is not provided with a power system and mainly relies on water flow to propel it forward, so the wing plates 24 are provided to increase the thrust area and thrust. At the same time, in order to prevent the detection mechanism 2 from being subjected to too much resistance due to the provision of the wing plates 24 when recovering the detection mechanism 2, a sawtooth groove 25 is provided at the end of the wing plates 24 to reduce the resistance.

[0053] In particular, the front end of the wing plate 24 can be directly fixed on the rear plate 213, or can be hinged on the rear plate 213. At the same time, the maximum outer diameter of the end of the wing plate 24 should be smaller than the outer diameter of the front shell body 211.

[0054] Furthermore, a plurality of wheel grooves 214 are evenly spaced on the outer circumference of the end of the front shell body 211; a pulley 23 is rotatably arranged in each of the wheel grooves 214; the outer side of the pulley 23 protrudes from the outer surface of the front shell body 211. The pulley 23 is arranged at the end of the front shell body 211 mainly to convert the sliding friction of the detection mechanism 2 scraping the inner wall of the pipeline 1 into rolling friction between the pulley 23 and the inner wall of the pipeline 1 when the detection mechanism 2 runs in the pipeline 1 and the detection mechanism 2 hits the inner wall of the pipeline 1, thereby reducing the loss and increasing the service life.

[0055] Furthermore, the power supply 4 is arranged near the rear cover 224; the power supply 4 includes a contact switch 41, a spring 43 and an operating bolt 44; the contact switch 41 is electrically connected to the PLC controller 56; the contact switch 41 is fixed in the rear shell 22; after the operating bolt 44 passes through the rear cover 224 from the outside to the inside, the end is located at the lower rear side of the contact switch 41; a protrusion 42 is fixed in the middle of one side of the contact switch 41 close to the rear cover 224; the middle of the spring 43 is hinged to the protrusion 42; one end of the spring 43 is fixed to the operating bolt 44, and the other end can contact the contact switch 41.

[0056] According to the above description, the power supply 4 mainly includes a contact switch 41, a spring 43 and an operating bolt 44. In the pipeline leakage detection system, the power supply 4 adopts the contact switch 41 for power supply. The middle part of the spring 43 is hinged with the protrusion 42 arranged in the middle part of the side of the contact switch 41 close to the rear cover 224, so that the spring 43 forms a lever. After tightening the operating bolt 44 and the end of the operating bolt 44 pushes the lower end of the spring 43, the upper end of the spring 43 is disengaged, the contact switch 41 is disconnected, the power supply 4 is in an open and closed state, and no longer supplies power to the various units in the detection mechanism 2. After loosening the operating bolt 44 and the end of the operating bolt 44 pulls the lower end of the spring 43, the upper end of the spring 43 is pressed against the contact switch 41, the contact switch 41 is turned on, the power supply 4 is turned on, and the various units in the detection mechanism 2 are powered, and the pipeline leakage detection system starts and starts working.

[0057] Furthermore, it also includes a tensioning mechanism 6 arranged on the platform side plate 312; the tensioning mechanism 6 includes a rocker arm 61, a tensioning screw 62, an adjustment knob 63, a belt 64, a driving wheel 65, a driven wheel 66 and a motor 67; the platform side plate 312 is provided with a transversely penetrating, arc-shaped adjustment slot 314; one end of the rocker arm 61 is hinged on the platform side plate 312, and the other end is fixed with the tensioning screw 62; the tensioning screw 62 transversely passes through the adjustment slot 314; the tensioning screw 62 can It slides in the adjustment slot 314 around the hinge between the rocker arm 61 and the platform side plate 312; the adjustment knob 63 is threadedly fixed on the tensioning screw 62, and the adjustment knob 63 and the rocker arm 61 are respectively arranged on both sides of the platform side plate 312; the motor 67 is fixed to the end of the rocker arm 61; the driving wheel 65 is fixed on the output shaft of the motor 67; the driven wheel 66 is fixed on the winding shaft 323; the driving wheel 65 and the driven wheel 66 are connected through the belt 64.

[0058] According to the above description, the reeling mechanism 3 of the pipeline leakage detection system is also provided with a tensioning mechanism 6. The tensioning mechanism 6 mainly includes a rocker arm 61, a tensioning screw 62, an adjusting knob 63, a belt 64, a driving wheel 65, a driven wheel 66 and a motor 67. One end of the rocker arm 61 is hinged on the platform side plate 312, and the other end is fixed with a tensioning screw 62; an adjusting slot 314 for the tensioning screw 62 to pass through is provided on the platform side plate 312, and the tensioning screw 62 can slide along the adjusting slot 314 and finally be fixed by the adjusting knob 63; the motor 67 is fixed at the end of the rocker arm 61, and can drive the reeling shaft 323 to rotate through the belt 64, the driving wheel 65 and the driven wheel 66. The tensioning screw 62 can slide in the adjustment groove 314 around the hinge between the rocker arm 61 and the platform side plate 312, thereby adjusting the tension of the belt 64 to adapt to different water flow environments, or the motor 67 under different speed conditions, to ensure the stable speed of the winding shaft 323, and to ensure that the detection mechanism 2 is stable and good in the retraction and release conditions.

[0059] Furthermore, it also includes a synchronization mechanism 7 arranged on the retracting housing 321; the synchronization mechanism 7 includes a synchronization bracket 71, a driven shaft 72, a driving bevel gear 73, a driven bevel gear 74, an upper side plate 75, a slide bar 76, a driving rod 77, a driven rod 78 and a stabilizer 8; the synchronization bracket 71 is fixed to the upper part of the retracting housing 321 near the platform side plate 312; the vertical driven shaft 72 is rotatably arranged on the synchronization bracket 71; the driving bevel gear 73 is fixed on the retracting shaft 323; the driven bevel gear 74 is fixed on the driven shaft 72 and meshes with the driving bevel gear 73; After the upper end of the driven shaft 72 passes through the upper end of the synchronous bracket 71, it is fixed to one end of the active rod 77; the two upper side plates 75 are respectively vertically fixed to the upper ends of both sides of the winding shell 321; the two ends of the horizontal sliding rod 76 are respectively arranged at the inner upper ends of the two upper side plates 75; the stabilizer 8 is slidably arranged on the sliding rod 76; an avoidance groove 79 is horizontally penetrated on the upper side plate 75 close to the side of the platform side plate 312; one end of the driven rod 78 is hinged to the active rod 77, and after the middle part passes through the avoidance groove 79, the other end is hinged to the lower end of the stabilizer 8; the traction rope 324 slides through the stabilizer 8.

[0060] According to the above description, the reeling mechanism 3 of the pipeline leakage detection system is also provided with a synchronization mechanism 7. The synchronization mechanism 7 mainly includes a synchronization bracket 71, a driven shaft 72, an active bevel gear 73, a driven bevel gear 74, an upper side plate 75, a sliding rod 76, an active rod 77, a driven rod 78 and a stabilizer 8. The synchronous bracket 71 is mainly used to accommodate the driven shaft 72; the driven bevel gear 74 is fixed on the driven shaft 72, and the active bevel gear 73 meshing therewith is fixed on the winding shaft 323; the two upper side plates 75 are respectively vertically fixed to the upper ends of both sides of the winding shell 321, and the upper side plate 75 close to the side of the platform side plate 312 is horizontally penetrated with an avoidance groove 79 for avoiding the driven rod 78 and the active rod 77; a sliding rod 76 is also fixed between the two upper side plates 75, and a stabilizer 8 is slidably sleeved on the sliding rod 76, and the traction rope 324 passes through the stabilizer 8; one end of the active rod 77 is fixed to the upper end of the driven shaft 72, and the other end of the active rod 77 is hinged to one end of the driven rod 78, and after the driven rod 78 passes through the avoidance groove 79, the end is hinged to the stabilizer 8. When in use, when the external power source drives the winding shaft 323 to rotate, the meshing action of the two bevel gears can drive the driven shaft 72 to rotate, and then drive the active rod 77 and the driven rod 78 to operate, and finally drive the stabilizer 8 to slide on the slide bar 76, so as to achieve uniform winding and releasing of the traction rope 324, and avoid the traction rope 324 being wound on the same position of the winding shaft 323 when it is recovered and wound.

[0061] Furthermore, the stabilizer 8 includes a slider 81, an extension rod 82 and a lifting ring 83; the slider 81 is slidably mounted on the slide rod 76; the lower end of the slider 81 is hinged to the end of the driven rod 78; one end of the extension rod 82 is fixed on the slider 81, and the other end is suspended in front of the rewinding outlet 322; the lifting ring 83 is fixed below the end of the extension rod 82; the lifting ring 83 is directly opposite to the front of the rewinding outlet 322, and the traction rope 324 slides through the lifting ring 83.

[0062] According to the above description, the stabilizer 8 mainly includes a slider 81, an extension rod 82 and a lifting ring 83. The function of the stabilizer 8 is mainly to make the traction rope 324 more reasonably wound. The slider 81 is slidably set on the slide bar 76, and reciprocates on the slide bar 76 through the driving action of the synchronization mechanism 7; at the same time, the slider 81 suspends the lifting ring 83 in front of the reeling outlet 322 through the extension rod 82, and the traction rope 324 passes through the lifting ring 83. When the reeling shaft 323 reels (or releases) the traction rope 324, the driven rod 78 can drive the slider 81 to move back and forth on the slide bar 76 through the driving action of the synchronization mechanism 7, and then drive the lifting ring 83 to move back and forth in front of the reeling outlet 322. In this way, when the reeling shaft 323 reels and releases the traction rope 324, the distribution on the reeling shaft 323 is more uniform, which is convenient for the storage of the traction rope 324.

[0063] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A pipeline leakage detection system, characterized in that: The invention comprises a detection mechanism (2) and a reeling mechanism (3); the detection mechanism (2) is located in a pipeline (1); the reeling mechanism (3) is arranged on a branch pipe (11) of the pipeline (1); the detection mechanism (2) is provided with an LED light (51), a camera unit (52), a recording unit (53), a PLC controller (56), a tracer (57), a memory (58) and a power supply (4); the PLC controller (56) is respectively connected to the LED light (51), the camera unit (52), the recording unit (53), the tracer (57), the memory (58) and the power supply (4) by electrical signals; the reeling mechanism (3) comprises a The branch pipe (11) includes a reeling platform (31) and a reel (32) fixed on the reeling platform (31); the reel (32) includes a reeling shell (321) with a horizontal axis and a hollow interior; the upper end of the reeling shell (321) is connected to a horizontal hollow reeling outlet (322) along a tangential direction; a reeling shaft (323) is rotatably arranged at the axis of the reeling shell (321), and both ends of the reeling shaft (323) pass through the two side walls of the reeling shell (321); a traction rope (324) is wound around the reeling shaft (323), and after the traction rope (324) slides through the reeling outlet (322), the end of the traction rope (324) is fixed to the detection mechanism (2); The reeling platform (31) comprises a horizontal platform bottom plate (311) and a platform side plate (312) vertically fixed to the upper end of one side of the platform bottom plate (311); the lower end of the reeling housing (321) is fixed to the platform bottom plate (311); the end of the reeling shaft (323) is rotatably arranged on the platform side plate (312); a fixing screw (313) is vertically fixed to the lower end of the platform bottom plate (311); the fixing screw (313) is threadedly fixed to the upper flange (12) of the branch pipe (11); the traction rope (324) is marked with scale lines, and the zero scale line is located at the connection between the traction rope (324) and the detection mechanism (2); The detection mechanism (2) comprises a front shell (21) and a rear shell (22) arranged behind the front shell (21); the front shell (21) is a streamlined structure with a small front and a large rear; the front shell (21) comprises a front shell body (211), a lens (212) and a rear plate (213); the front shell body (211) is hollow inside and has an open front end; a transparent lens (212) is fixed to the open end of the front end of the front shell body (211); the rear plate (213) is sealed and fixed to the rear end of the front shell body (211); the rear shell (22) comprises a rear shell body (221) and a rear cover (224); the rear shell body (221) is horizontally hollow, has a front end connected to the rear plate (213), and a rear end open; the rear cover (224) covers and is fixed to the open end of the rear shell body (221); a plurality of LED lamps (51) are evenly spaced and arranged on the front shell body. The front end of the body (211) is provided with a circular array around the lens (212); the camera unit (52) and the recording unit (53) are both accommodated in the front shell body (211), and the camera unit (52) is located behind the lens (212); a temperature sensor (54) and a pressure sensor (55) are also provided on the outer periphery of the front end of the front shell body (211); the temperature sensor (54) and the pressure sensor (55) are respectively connected to the PLC controller (56) by electrical signals; the power supply (4), the PLC controller (56), the tracer (57) and the memory (58) are all provided in the rear shell body (221); a counterweight (27) is also provided on the lower inner part of the rear shell body (221); the traction rope (324) is fixed to the rear cover (224); and the outer periphery of the middle part of the front shell body (21) is covered with a rubber sleeve (26).

2. The pipeline leakage detection system according to claim 1, characterized in that: A rear connecting groove (215) is provided in the middle of the rear end of the rear plate (213); a connecting rod (222) is fixed to the front end of the rear shell body (221); a connecting ball (223) is fixed to the front end of the connecting rod (222); the connecting ball (223) is accommodated in the rear connecting groove (215), and the connecting ball (223) can move in the rear connecting groove (215).

3. The pipeline leakage detection system according to claim 1, characterized in that: A wing plate (24) is also provided at the rear end of the rear plate (213); a plurality of the wing plates (24) are arranged in a circular array and are evenly spaced; the ends of the wing plates (24) are arranged to spread outwards; and a plurality of sawtooth grooves (25) are also provided at the ends of the wing plates (24).

4. The pipeline leakage detection system according to claim 1, characterized in that: A plurality of wheel grooves (214) are evenly spaced apart on the outer circumference of the end of the front shell body (211); a pulley (23) is rotatably arranged in each of the wheel grooves (214); and the outer side of the pulley (23) protrudes from the outer surface of the front shell body (211).

5. The pipeline leakage detection system according to claim 1, characterized in that: The power source (4) is arranged near the rear cover (224); the power source (4) comprises a contact switch (41), a spring (43) and an operating bolt (44); the contact switch (41) is electrically connected to the PLC controller (56); the contact switch (41) is fixed in the rear housing (22); after the operating bolt (44) passes through the rear cover (224) from the outside to the inside, the end thereof is located below the rear side of the contact switch (41); a convex block (42) is fixed in the middle of one side of the contact switch (41) near the rear cover (224); the middle of the spring (43) is hinged to the convex block (42); one end of the spring (43) is fixed to the operating bolt (44), and the other end is capable of contacting the contact switch (41).

6. The pipeline leakage detection system according to claim 1, characterized in that: The platform also includes a tensioning mechanism (6) disposed on the platform side plate (312); the tensioning mechanism (6) includes a rocker arm (61), a tensioning screw (62), an adjustment knob (63), a belt (64), a driving wheel (65), a driven wheel (66), and a motor (67); a transversely penetrating, arc-shaped adjustment slot (314) is provided on the platform side plate (312); one end of the rocker arm (61) is hinged to the platform side plate (312), and the other end is fixed with the tensioning screw (62); the tensioning screw (62) transversely passes through the adjustment slot (314); the tensioning screw (62) can be rotated around the adjustment slot (314); The hinge between the rocker arm (61) and the platform side plate (312) slides in the adjustment slot (314); the adjustment knob (63) is threadedly fixed on the tensioning screw (62), and the adjustment knob (63) and the rocker arm (61) are respectively arranged on two sides of the platform side plate (312); the motor (67) is fixed to the end of the rocker arm (61); the driving wheel (65) is fixed to the output shaft of the motor (67); the driven wheel (66) is fixed to the reeling shaft (323); the driving wheel (65) and the driven wheel (66) are connected to each other through the belt (64).

7. The pipeline leakage detection system according to claim 1, characterized in that: The invention also comprises a synchronization mechanism (7) arranged on the reeling housing (321); the synchronization mechanism (7) comprises a synchronization bracket (71), a driven shaft (72), a driving bevel gear (73), a driven bevel gear (74), an upper side plate (75), a sliding rod (76), a driving rod (77), a driven rod (78) and a stabilizer (8); the synchronization bracket (71) is fixed to the upper part of the reeling housing (321) on the side close to the platform side plate (312); the vertical driven shaft (72) is rotatably arranged on the synchronization bracket (71); the driving bevel gear (73) is fixed on the reeling shaft (323); the driven bevel gear (74) is fixed on the driven shaft (72) and meshes with the driving bevel gear (73). ; The upper end of the driven shaft (72) passes through the upper end of the synchronous bracket (71) and is fixed to one end of the active rod (77); the two upper side plates (75) are respectively vertically fixed to the upper ends of both sides of the retracting shell (321); the two ends of the horizontal sliding rod (76) are respectively arranged on the inner upper ends of the two upper side plates (75); the stabilizer (8) is slidably arranged on the sliding rod (76); an avoidance groove (79) is transversely penetrated on the upper side plate (75) close to the side plate (312) of the platform; one end of the driven rod (78) is hinged to the active rod (77), and the other end is hinged to the lower end of the stabilizer (8) after the middle part passes through the avoidance groove (79); the traction rope (324) slides through the stabilizer (8).

8. The pipeline leakage detection system according to claim 7, characterized in that: The stabilizer (8) comprises a slider (81), an extension rod (82) and a lifting ring (83); the slider (81) is slidably mounted on the slider (76); the lower end of the slider (81) is hinged to the end of the driven rod (78); one end of the extension rod (82) is fixed to the slider (81), and the other end is suspended in front of the reeling outlet (322); the lifting ring (83) is fixed below the end of the extension rod (82); the lifting ring (83) is directly opposite to the front of the reeling outlet (322), and the traction rope (324) slides through the lifting ring (83).

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