A pressure testing device for building pipelines

Abstract

This invention relates to the field of building pipeline inspection technology and discloses a pressure testing device for building pipelines, including a housing. An operating unit is located inside the housing, comprising a detection component, a power component, a drive component, and a spraying component. Rotating a ball valve allows coupling fluid from the infusion pipe to be delivered into the spray plate, and then sprayed out through a nozzle. This ensures that the detection surface of the mechanical sensor and the outer surface of the building pipeline are both coated with coupling fluid, enabling timely replenishment of the coupling fluid when it is about to run out, thus guaranteeing detection accuracy. This invention solves the technical problem that existing testing equipment uses mechanical sensors to perform pressure testing on building pipelines, where the replenishment of coupling agent usually relies on regular manual inspection and application, a cumbersome and inefficient process, especially in large-scale or high-altitude operations where it is labor-intensive and poses safety hazards.

Description

Technical Field

[0001] This invention relates to the field of building pipeline testing technology, specifically to a pressure testing device for building pipelines. Background Technology

[0002] Building pipelines are an important part of building infrastructure. The internal pressure stability of pipelines is directly related to safety. In the pressure testing of building pipelines, especially when using non-invasive external wall testing methods, a coupling agent needs to be added between the detection surface of the mechanical sensor and the outer surface of the building pipeline to ensure good acoustic coupling.

[0003] Currently, existing testing equipment uses mechanical sensors to test the pressure of building pipes. The replenishment of coupling agent usually relies on manual periodic inspection and application, which is cumbersome and inefficient. Especially in large-scale or high-altitude operation scenarios, the labor intensity is high and there are safety hazards. Summary of the Invention

[0004] Technical problems to be solved To address the aforementioned shortcomings of existing technologies, this invention provides a pressure testing device for building pipelines. This device effectively solves the technical problems of existing testing equipment using mechanical sensors to test the pressure of building pipelines, where the replenishment of coupling agent usually relies on manual periodic inspection and application, which is cumbersome, inefficient, and particularly labor-intensive and poses safety hazards in large-scale or high-altitude operation scenarios.

[0005] Technical solution

[0006] To achieve the above objectives, the present invention provides the following technical solution: This invention provides a pressure testing device for building pipelines, comprising a housing with a sealing door on one side. An operating body is located inside the housing, including a detection component, a power component, a drive component, and a spraying component. The detection component includes a vertical plate, the top of which is fixedly connected to the inner top surface of the housing. A U-shaped plate is fixedly connected to the bottom of the vertical plate. Two springs are arranged on the inner side of the U-shaped plate, and each spring has a movable plate connected to one end close to the other. A connecting rod is fixedly connected to the bottom of the movable plate. An elastic plate is arranged on one side of each connecting rod close to the other, and a force sensor is arranged on one side of each elastic plate close to the other.

[0007] Furthermore, one of the two connecting rods is fixedly connected to one side of a mounting rod 1, and the other of the two connecting rods is fixedly connected to one side of a mounting rod 2. One end of the mounting rod 1 is fixedly mounted with a camera 1, and one end of the mounting rod 2 is fixedly mounted with a camera 2.

[0008] Furthermore, an arc plate is fixedly connected to the side of each of the two movable plates that are close to each other, a telescopic rod is provided on the inner side of the spring, a baffle is fixedly connected to the top of the U-shaped plate, and a magnetic plate is embedded in the upper surface of the baffle.

[0009] Furthermore, the power assembly includes an electric slide rail, which is vertically fixedly connected to the inner wall of the housing. A lifting plate is slidably connected to one side of the electric slide rail, and a rack and a push plate are fixedly connected to one side of the lifting plate. A magnetic plate is embedded in the upper surface of the push plate.

[0010] Furthermore, the drive assembly includes a second spring, the upper end of which is connected to the inner top surface of the housing, and the lower end of which is connected to a movable plate. A ball is rotatably mounted on the bottom of the movable plate, and the ball can be inserted between the arcuate convex surfaces of two arcuate plates. A second telescopic rod is provided on the inner side of the second spring.

[0011] Furthermore, magnetic plate three and magnetic plate four are embedded and installed at the bottom of the movable plate. Magnetic plate one and magnetic plate three are opposite magnetic poles that attract each other, and magnetic plate two and magnetic plate four are opposite magnetic poles that attract each other.

[0012] Furthermore, the spray assembly includes a support rod, an infusion tube, and a spray plate. One end of the support rod is fixedly connected to the inner wall of the machine housing. A first support ring and a second support ring are fixedly connected to the support rod. A first rotating shaft is rotatably mounted on the inner side of the first support ring, and a second rotating shaft is rotatably mounted on the inner side of the second support ring. One end of the first rotating shaft is fixedly connected to a gear that meshes with a rack, and the other end of the first rotating shaft is fixedly connected to a first bevel gear. A second bevel gear is fixedly fitted onto the outer circumference of the second rotating shaft, and the first bevel gear and the second bevel gear mesh with each other.

[0013] Furthermore, a magnetic plate five is fixedly connected to the top of the rotating shaft two, a fixing frame is fixedly connected to one surface of the support rod, and a magnetic plate six is ​​fixedly connected to the inner side of the fixing frame. The magnetic plate five and the magnetic plate six are opposite magnetic poles that attract each other.

[0014] Furthermore, a connecting plate is fixedly sleeved on the outer circumference of the second rotating shaft rod, the infusion tube is used to deliver the coupling agent, the infusion tube penetrates the side wall of the machine housing, the outer surface of the infusion tube is fixedly connected to the side wall of the machine housing, and a ball valve is fixedly connected to the lower end of the second rotating shaft rod, the ball valve being located inside the infusion tube.

[0015] Furthermore, a flexible tube is fixedly connected to one end of the infusion tube, and a spray tube is fixedly connected to the end of the flexible tube away from the infusion tube. The outer surface of the spray tube is fixedly connected to a connecting plate. Two spray plates are provided. The sides of the two spray plates that are far apart from each other are fixedly connected to the spray tube, and the sides of the two spray plates that are close to each other are provided with nozzles.

[0016] Beneficial effects

[0017] The technical solution provided by this invention has the following advantages compared with the prior art: 1. The pressure detection device for building pipelines of the present invention, by setting up camera one and camera two, can monitor the consumption status of coupling fluid between mechanical sensor and building pipeline in real time, realize real-time visual monitoring of coupling status, and avoid invalid detection caused by blind detection.

[0018] 2. The pressure testing device for building pipelines of the present invention, by setting an operating body inside the housing, rotates a ball valve to allow the coupling fluid in the infusion pipe to be delivered into the spray plate, and then sprays the coupling fluid through the nozzle, thereby adding coupling fluid to both the detection surface of the mechanical sensor and the outer surface of the building pipeline. This enables timely replenishment of coupling fluid when it is about to run out, ensuring detection accuracy. It solves the technical problem that existing detection equipment uses mechanical sensors to perform pressure testing on building pipelines, and the replenishment of coupling agent usually relies on manual periodic inspection and application, which is cumbersome, inefficient, and especially labor-intensive and poses safety hazards in large-scale or high-altitude operation scenarios.

[0019] 3. The pressure detection device for building pipelines of the present invention, by setting up a spray assembly, the rotation of the rotating shaft rod drives the connecting plate to rotate, thereby causing the spray pipe to rotate, and then causing the spray plate to rotate, realizes the rotation and swing of the spray plate during liquid replenishment, expands the coverage range of the coupling liquid, so that the coupling liquid sprayed from the nozzle is no longer a single direct point, but forms a fan-shaped spray surface, which greatly increases the coverage area of ​​the coupling liquid on the outer surface of the building pipeline, and provides sufficient coupling agent reserves for the re-attachment of the mechanical sensor.

[0020] 4. The pressure testing device for building pipelines of the present invention, by setting up an operating main body, can replenish the coupling fluid in time when the coupling fluid between the detection surface of the mechanical sensor and the outer surface of the building pipeline is about to be consumed, ensuring that the detection process is always in the optimal coupling state. The whole process is fully automated and requires no manual intervention, avoiding measurement errors or detection interruptions caused by poor coupling. By separating the mechanical sensor from the building pipeline first and then spraying the coupling fluid for replenishment, the uniform coating of the coupling fluid is ensured. By adopting this method of separation before spraying, the direct addition of coupling fluid when the mechanical sensor is in close contact with the outer surface of the building pipeline is prevented from causing air to be unable to escape and forming a dead zone of air bubbles. This ensures that the coupling fluid can fill the gap evenly and without air bubbles when re-attached, further ensuring the detection accuracy. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0022] Figure 1 This is a three-dimensional structural diagram of a pressure detection device for building pipelines according to the present invention; Figure 2 This is a three-dimensional structural diagram of the housing of a pressure testing device for building pipelines according to the present invention, after being cut open. Figure 3 for Figure 2 A magnified structural diagram of part A in the middle; Figure 4 A three-dimensional structural diagram showing the interaction between the main operating unit and the building's pipelines; Figure 5 for Figure 4 A magnified structural diagram of section B in the middle; Figure 6 This is a three-dimensional structural diagram of the operating body of the present invention; Figure 7 for Figure 6 A magnified structural diagram of section C in the middle; Figure 8 for Figure 6 A magnified structural diagram of part D in the middle; Figure 9 This is a three-dimensional structural diagram of the detection component of the present invention; Figure 10 This is a three-dimensional structural diagram of the power assembly of the present invention; Figure 11This is a three-dimensional structural diagram of the driving component of the present invention; Figure 12 This is a three-dimensional structural diagram of the spray assembly of the present invention; The labels in the diagram represent: 1. Machine casing; 2. Operating body; 3. Detection component; 4. Power component; 5. Drive component; 6. Spraying component; 7. Sealing door; 8. Building pipe; 31. Vertical plate; 32. U-shaped plate; 33. Spring 1; 34. Movable plate; 35. Connecting rod; 36. Elastic plate; 37. Mechanical sensor; 38. Mounting rod 1; 39. Mounting rod 2; 310. Camera 1; 311. Camera 2; 312. Arc plate; 313. Telescopic rod 1; 314. Baffle; 315. Magnetic plate 1; 41. Electric slide rail; 42. Lifting plate; 4 3. Rack; 44. Push plate; 45. Magnetic plate II; 51. Spring II; 52. Moving plate; 53. Sphere; 54. Telescopic rod II; 55. Magnetic plate III; 56. Magnetic plate IV; 61. Support rod; 62. Support ring I; 63. Support ring II; 64. Rotating shaft I; 65. Rotating shaft II; 66. Gear; 67. Bevel gear I; 68. Bevel gear II; 69. Magnetic plate V; 610. Fixing frame; 611. Magnetic plate VI; 612. Connecting plate; 613. Infusion tube; 614. Hoses; 615. Spray tube; 616. Spray plate; 617. Nozzle. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0024] The present invention will be further described below with reference to embodiments.

[0025] Please see Figures 1-12 A pressure testing device for building pipelines is disclosed. A sealing door 7 is provided on one side of the housing 1, and a sealed environment is achieved inside the housing 1 by closing the sealing door 7. Both the front and rear side walls of the housing 1 are provided with through holes, through which the building pipeline 8 passes. In this embodiment, a sealing ring can be provided on the inner wall of the through hole of the housing 1 to maintain a sealed environment inside the housing 1.

[0026] The internal structure of the housing 1 houses the operating body 2, which includes a detection component 3, a power component 4, a drive component 5, and a spray component 6. The detection component 3 includes a vertical plate 31, a U-shaped plate 32, a first spring 33, a movable plate 34, a connecting rod 35, an elastic plate 36, a mechanical sensor 37, a first mounting rod 38, a second mounting rod 39, a first camera 310, a second camera 311, an arc plate 312, a first telescopic rod 313, a baffle 314, and a first magnetic plate 315.

[0027] The top of the vertical plate 31 is fixedly connected to the inner top surface of the housing 1, and the bottom of the vertical plate 31 is fixedly connected to the U-shaped plate 32. Two springs 33 are horizontally arranged on the inner side of the U-shaped plate 32, and each spring 33 has a movable plate 34 connected to its closest end. The movable plate 34 is vertically arranged. A telescopic rod 313 is provided inside the springs 33. One end of the telescopic rod 313 is fixedly connected to the inner surface of the U-shaped plate 32, and the other end is fixedly connected to the movable plate 34. In this embodiment of the invention, the springs 33 are always in a compressed state.

[0028] A connecting rod 35 is fixedly connected to the bottom of the movable plate 34. An elastic plate 36 is provided on the side of each connecting rod 35 that is close to each other. A mechanical sensor 37 is provided on the side of each elastic plate 36 that is close to each other. The elastic plate 36 allows the detection surface of the mechanical sensor 37 to fit tightly against the outer surface of the building pipe 8. The elastic plate 36 can adapt to minor unevenness of the outer surface of the building pipe 8 and provide stable preload, avoiding signal drift due to poor contact. The mechanical sensor 37 is used to collect pipe wall deformation signals or acoustic signals generated by internal pressure in the building pipe 8.

[0029] Since the internal pressure of the building pipe 8 causes microscopic expansion deformation of the pipe wall and stress wave transmission, in this embodiment of the invention, the mechanical sensor 37 can be selected from, but is not limited to, a strain sensor, an ultrasonic sensor or a piezoelectric acoustic emission sensor. When the internal pressure of the building pipe 8 changes, the pipe wall produces corresponding microscopic deformation or acoustic characteristic changes. Since the detection surface of the mechanical sensor 37 is in close contact with the outer wall of the building pipe 8, the sensed mechanical deformation or acoustic signal is converted into an electrical signal.

[0030] When the mechanical sensor 37 is an ultrasonic sensor, the sprayed coupling fluid is used to fill the air gap between the detection surface and the pipe, improving acoustic impedance matching, reducing ultrasonic reflection loss at the interface, and ensuring efficient transmission and reception of acoustic signals. When the mechanical sensor 37 is a strain gauge or piezoelectric sensor, the coupling fluid is used to fill microscopic unevenness, forming a uniform flexible contact layer, isolating external moisture and corrosive media, and preventing zero-point drift caused by poor contact or moisture, thereby significantly improving the stability and accuracy of detection.

[0031] One of the two connecting rods 35 is fixedly connected to one side of an installation rod 38, and the other of the two connecting rods 35 is fixedly connected to one side of an installation rod 39. The installation rod 38 is located above the building pipe 8, and the installation rod 39 is located below the building pipe 8.

[0032] A camera 310 is fixedly installed at one end of mounting rod 38. Camera 310 is located above the building pipe 8, and its lens faces the building pipe 8. A camera 311 is fixedly installed at one end of mounting rod 39. Camera 311 is located below the building pipe 8, and its lens faces the building pipe 8.

[0033] Both movable plates 34 are fixedly connected to arc plates 312 on their adjacent sides, with the arcuate convex surfaces of the two arc plates 312 facing each other. A baffle 314 is fixedly connected to the top of the U-shaped plate 32. The baffle 314 is horizontally positioned, and a magnetic plate 315 is embedded in the upper surface of the baffle 314. The magnetic plate 315 is horizontally positioned.

[0034] The power assembly 4 includes an electric slide rail 41, a lifting plate 42, a rack 43, a push plate 44, and a magnetic plate 45. The electric slide rail 41 is vertically arranged, and its back is fixedly connected to the inner wall of the housing 1. The lifting plate 42 is slidably connected to one side of the electric slide rail 41, and the electric slide rail 41 drives the lifting plate 42 to move up and down.

[0035] A rack 43 is fixedly connected to one side of the lifting plate 42, and the rack 43 is vertically arranged. A push plate 44 is fixedly connected to one side of the lifting plate 42, and the push plate 44 is horizontally arranged. A magnetic plate 45 is embedded in the upper surface of the push plate 44, and the magnetic plate 45 is horizontally arranged.

[0036] The drive assembly 5 includes a second spring 51, a movable plate 52, a ball 53, a second telescopic rod 54, a third magnetic plate 55, and a fourth magnetic plate 56. The second spring 51 is vertically arranged, with its upper end connected to the inner top surface of the housing 1 and its lower end connected to the top of the movable plate 52. In this embodiment of the invention, the second spring 51 is always in a compressed state.

[0037] The push plate 44 is always located below the movable plate 52. A ball 53 is rotatably mounted on the bottom of the movable plate 52, and the ball 53 can be inserted between the arcuate convex surfaces of the two arcuate plates 312. A telescopic rod 54 is provided on the inner side of the second spring 51. The telescopic rod 54 is vertically arranged, and its upper end is fixedly connected to the inner top surface of the housing 1, while its lower end is fixedly connected to the top of the movable plate 52.

[0038] Magnetic plate three 55 and magnetic plate four 56 are embedded in the bottom of the movable plate 52. Magnetic plate three 55 is horizontally set, and magnetic plate one 315 and magnetic plate three 55 are opposite magnetic poles that attract each other. Magnetic plate four 56 is horizontally set, and magnetic plate two 45 and magnetic plate four 56 are opposite magnetic poles that attract each other.

[0039] The spray assembly 6 includes a support rod 61, a first support ring 62, a second support ring 63, a first rotating shaft 64, a second rotating shaft 65, a gear 66, a first bevel gear 67, a second bevel gear 68, a fifth magnetic plate 69, a fixing frame 610, a sixth magnetic plate 611, a connecting plate 612, an infusion tube 613, a hose 614, a spray pipe 615, a spray plate 616, a nozzle 617, and a ball valve.

[0040] The support rod 61 has an L-shaped structure and is horizontally positioned. One end of the support rod 61 is fixedly connected to the inner wall of the housing 1. A support ring 62 is fixedly connected to the support rod 61 and is horizontally positioned. A rotating shaft 64 is rotatably mounted on the inner side of the support ring 62 and is horizontally positioned.

[0041] A gear 66 is fixedly connected to one end of the rotating shaft 64, and the gear 66 and the rotating shaft 64 can rotate synchronously together. A bevel gear 67 is fixedly connected to the other end of the rotating shaft 64, and the bevel gear 67 and the rotating shaft 64 can rotate synchronously together. The gear 66 is located on the lower side of the baffle 314.

[0042] A second support ring 63 is fixedly connected to the support rod 61, and the second support ring 63 is vertically arranged. A second rotating shaft 65 is rotatably mounted on the inner side of the second support ring 63, and the second rotating shaft 65 is vertically arranged. A second bevel gear 68 is fixedly sleeved on the outer circumference of the second rotating shaft 65, and the second bevel gear 68 and the second rotating shaft 65 can rotate together synchronously. A first bevel gear 67 meshes with the second bevel gear 68, so that when the first rotating shaft 64 rotates, it can drive the second rotating shaft 65 to rotate.

[0043] A magnetic plate 69 is fixedly connected to the top of the rotating shaft 65, and the magnetic plate 69 is horizontally positioned. A fixing frame 610 is fixedly connected to one surface of the support rod 61, and a magnetic plate 611 is fixedly connected to the inner side of the fixing frame 610, and the magnetic plate 611 is horizontally positioned. The magnetic plates 69 and 611 are opposite magnetic poles and attract each other. The magnetic plate 611 is located directly above the magnetic plate 69, and the magnetic plates 69 and 611 are in contact with each other.

[0044] A connecting plate 612 is fixedly sleeved on the outer circumference of the rotating shaft 65. The rotating shaft 65 passes through the connecting plate 612, which is horizontally positioned. The rotating shaft 65 drives the connecting plate 612 to rotate together. The infusion tube 613 is used to deliver coupling agent. The coupling agent is used to fill the microscopic gap between the detection surface of the mechanical sensor 37 and the outer surface of the building pipe 8, improve acoustic impedance matching (such as when using ultrasonic testing), form a sealing protective layer to isolate moisture and corrosive media, and improve the stability and long-term accuracy of the detection signal.

[0045] In this embodiment of the invention, the coupling fluid is preferably an aqueous polymer gel with water as the matrix and added thickener and humectant. Its acoustic impedance is matched with common metal pipe materials. It can form a continuous acoustic coupling layer between the mechanical sensor 37 and the building pipe 8, reducing the reflection loss of ultrasonic waves at the interface. It can also seal the gap between the mechanical sensor 37 and the building pipe 8 to prevent the intrusion of moisture and corrosive media. At the same time, it maintains stable viscosity and acoustic performance within the working temperature range and is not easy to dry out or flow.

[0046] The infusion tube 613 penetrates the side wall of the machine housing 1, and its outer surface is sealed and fixedly connected to the side wall of the machine housing 1. A ball valve is fixedly connected to the lower end of the rotating shaft 65, which is located inside the infusion tube 613. The infusion tube 613 can be fully opened or closed by driving the ball valve to rotate. The lower end of the rotating shaft 65 is located inside the infusion tube 613, and the rotating shaft 65 is sealed and rotatably connected to the infusion tube 613.

[0047] One end of the infusion tube 613 is fixedly connected to a flexible tube 614, which is elastically stretchable. The infusion tube 613 and the flexible tube 614 are interconnected. The end of the infusion tube 613 away from the flexible tube 614 is connected to an external device containing coupling fluid. The external device containing coupling fluid delivers the coupling fluid into the infusion tube 613 via a delivery pump. The external device containing coupling fluid is existing equipment, and its structure will not be described in detail here.

[0048] The end of the tubing 614 furthest from the infusion tube 613 is fixedly connected to a jet tube 615, and the tubing 614 and the jet tube 615 are in communication with each other. The outer surface of the jet tube 615 is fixedly connected to a connecting plate 612, and the connecting plate 612 can drive the jet tube 615 to rotate together.

[0049] Two spray plates 616 are provided, and each spray plate 616 is hollow inside. The two spray plates 616 are located on the upper and lower sides of the building pipe 8, respectively. The sides of the spray plates 616 that are far apart from each other are fixedly connected to the spray pipe 615, and the spray plates 616 and the spray pipe 615 are interconnected. The sides of the spray plates 616 that are close to each other are provided with nozzles 617. The coupling fluid passes sequentially through the infusion pipe 613, the flexible hose 614, the spray pipe 615, and the spray plate 616, and is finally sprayed out by the nozzles 617.

[0050] The embodiments of the present invention also include a control center, which is a computer control device. Camera 1 310 and Camera 2 311 transmit video information to the control center. The control center can control the opening and closing of the electric slide rail 41. Both the control center and the electric slide rail 41 are existing devices, and their structures will not be described in detail here.

[0051] Working principle and usage process of this invention: In the initial state, the ball valve is not open, the infusion tube 613 is not open, the lifting plate 42 is at its highest position, the upper surface of the push plate 44 is in contact with the lower surface of the moving plate 52, the magnetic plate 45 and the magnetic plate 56 are in contact and magnetically attracted to each other, the convex surfaces of the two arc plates 312 are in contact, the telescopic rod 313 is extended to its longest length, the two moving plates 34 are closest to each other, the two mechanical sensors 37 are closest to each other, the coupling fluid fills the microscopic gap between the detection surface of the mechanical sensor 37 and the outer surface of the building pipe 8, and the two mechanical sensors 37 are located on the left and right sides respectively. Pressure testing is performed on the building pipe 8 (at this time, the detection surface of the mechanical sensor 37 is in close contact with the outer surface of the building pipe 8). Camera 1 310 monitors the upper side of the building pipe 8 to see if the coupling fluid is about to be consumed, and camera 2 311 monitors the lower side of the building pipe 8 to see if the coupling fluid is about to be consumed. By setting up camera 1 310 and camera 2 311, the consumption status of the coupling fluid between the mechanical sensor 37 and the building pipe 8 can be monitored in real time, realizing real-time visual monitoring of the coupling status and avoiding blind detection that would result in invalid detection. When the coupling fluid between the detection surface of the mechanical sensor 37 and the outer surface of the building pipe 8 is about to be consumed, the electric slide rail 41 is driven to move the lifting plate 42 downward, which in turn moves the push plate 44 downward. At this time, due to the tension of the second spring 51 and the magnetic attraction between the second magnetic plate 45 and the fourth magnetic plate 56, the push plate 44 and the moving plate 52 are firmly combined into a whole, which allows the push plate 44 to drive the moving plate 52 to move downward. When the moving plate 52 moves downward and contacts the baffle 314, the ball 53 will be inserted between the arc convex surfaces of the two arc plates 312, which will cause the two arc plates 312 to move away from each other, which will further compress the first spring 33, which will shorten the first telescopic rod 313 to its shortest length, which will make the two moving plates 34 as far apart as possible, which will make the two mechanical sensors 37 as far apart as possible, and thus separate the detection surface of the mechanical sensor 37 from the outer surface of the building pipe 8. Next, the electric slide rail 41 continues to drive the lifting plate 42 downward. At this point, the lower surface of the moving plate 52 is in contact with the upper surface of the baffle 314, and the magnetic plates 315 and 55 are in contact and magnetically attracted to each other. This causes the baffle 314 to block the moving plate 52 from moving further downward. Therefore, the push plate 44 cannot continue to drive the moving plate 52 downward. During the downward movement of the lifting plate 42, it drives the rack 43 downward. As the rack 43 moves downward, it gradually and smoothly engages with the gear 66, driving the gear 66 to rotate forward. This causes the rotating shaft 64 to rotate forward, which in turn causes the rotating shaft 65 to rotate forward, thus rotating the ball valve forward. This fully opens the infusion tube 613, allowing the coupling fluid in the infusion tube 613 to be delivered into the spray plate 616 and then sprayed out through the nozzle 617. This allows coupling fluid to be added to both the detection surface of the mechanical sensor 37 and the outer surface of the building pipe 8. This solves the technical problem that existing detection equipment uses mechanical sensors to perform pressure detection on building pipes, and the replenishment of coupling fluid usually relies on manual periodic inspection and application, which is cumbersome and inefficient. Especially in large-scale or high-altitude operation scenarios, this is a labor-intensive and safety-hazardous technical problem. At the same time, the rotation of the rotating shaft rod 65 can also drive the connecting plate 612 to rotate, which in turn causes the spray pipe 615 to rotate, which in turn causes the spray plate 616 to rotate. This enables the spray plate 616 to rotate and swing, expanding the coverage area of ​​the coupling fluid. This makes the coupling fluid sprayed from the nozzle 617 no longer a single direct point, but forms a fan-shaped spray surface, which greatly increases the coverage area of ​​the coupling fluid on the outer surface of the building pipe 8 and provides sufficient coupling fluid reserves for the re-attachment of the mechanical sensor 37. After the coupling fluid is re-added between the detection surface of the force sensor 37 and the outer surface of the building pipe 8, the lifting plate 42 is moved upward to its highest position and reset by driving the electric slide rail 41, which in turn resets the rack 43, causes the gear 66 to reverse and reset, resets the two spray plates 616, reverses and resets the ball valve, completely closes the infusion pipe 613, moves the push plate 44 upward to its highest position and resets, moves the moving plate 52 upward to its highest position and resets, and pulls the ball 53 out from between the arcuate convex surfaces of the two arcuate plates 312. This allows the detection surface of the force sensor 37 to re-adhere to the outer surface of the building pipe 8, thus eliminating the microscopic gap between the detection surface of the force sensor 37 and the outer surface of the building pipe 8 that was previously unused. The coupling fluid is filled in a fully automated process that requires no manual intervention. This allows for timely replenishment of the coupling fluid when cameras 310 and 311 detect that it is running low, ensuring that the detection process is always in the optimal coupling state. This completely avoids measurement errors or detection interruptions caused by poor coupling. By first separating the mechanical sensor 37 from the building pipe 8 and then spraying the coupling fluid, uniform coating of the coupling fluid is ensured. This method of separation before spraying prevents air from being trapped and forming dead zones when the mechanical sensor 37 is in close contact with the outer surface of the building pipe 8. This ensures that the coupling fluid can fill the gap evenly and without bubbles when the two are re-attached, further guaranteeing the detection accuracy.

[0052] In summary, by setting up cameras 310 and 311, the consumption status of the coupling fluid between the mechanical sensor 37 and the building pipe 8 can be monitored in real time, realizing real-time visual monitoring of the coupling status and avoiding invalid detection caused by blind detection. By setting up the operating body 2 inside the housing 1, rotating the ball valve allows the coupling fluid in the infusion pipe 613 to be delivered into the spray plate 616, and then sprayed out through the nozzle 617, so that the detection surface of the mechanical sensor 37 and the outer surface of the building pipe 8 are both covered with coupling fluid. This allows the coupling fluid to be replenished in time when it is about to be consumed, ensuring detection accuracy. This solves the technical problem that existing detection equipment uses mechanical sensors to perform pressure detection on building pipes, and the replenishment of coupling agent usually relies on manual periodic inspection and application, which is cumbersome and inefficient, especially in large-scale or high-altitude operation scenarios, where the labor intensity is high and there are safety hazards. By setting up the spray assembly 6, when the rotating shaft 65 rotates, it drives the connecting plate 612 to rotate, which in turn rotates the spray pipe 615, which in turn rotates the spray plate 616, realizing the rotation of the spray plate 616 during fluid replenishment. The oscillation expands the coverage area of ​​the coupling fluid, so that the coupling fluid sprayed from the nozzle 617 is no longer a single direct point, but forms a fan-shaped spray surface, which greatly increases the coverage area of ​​the coupling fluid on the outer surface of the building pipe 8, providing sufficient coupling agent reserves for the re-attachment of the mechanical sensor 37. By setting the operating body 2, when the coupling fluid between the detection surface of the mechanical sensor 37 and the outer surface of the building pipe 8 is about to be consumed, the coupling fluid can be replenished in time when it is detected that the coupling fluid is about to be consumed, ensuring that the detection process is always in the optimal coupling state. The whole process is fully automated and does not require manual intervention, avoiding measurement errors or detection interruptions caused by poor coupling. By separating the mechanical sensor 37 from the building pipe 8 first and then spraying the coupling fluid for replenishment, the uniform coating of the coupling fluid is ensured. By adopting this method of separation before spraying, the direct addition of coupling fluid when the mechanical sensor 37 is in close contact with the outer surface of the building pipe 8 is prevented from causing air to be unable to escape and forming a dead zone of air bubbles. This ensures that the coupling fluid can fill the gap evenly and without air bubbles during re-attachment, further ensuring the detection accuracy.

[0053] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A pressure testing device for building pipelines, comprising a housing, wherein a sealing door is provided on one side of the housing, characterized in that, The machine housing is equipped with an operating body, which includes a detection component, a power component, a drive component, and a spray component. The detection assembly includes a vertical plate, the top of which is fixedly connected to the inner top surface of the housing, and a U-shaped plate fixedly connected to the bottom of the vertical plate. Two springs are arranged on the inner side of the U-shaped plate, and a movable plate is connected to the end of each spring that is close to each other. A connecting rod is fixedly connected to the bottom of the movable plate, and an elastic plate is arranged on the side of each connecting rod that is close to each other. A force sensor is arranged on the side of each elastic plate that is close to each other.

2. The pressure testing device for building pipelines according to claim 1, characterized in that, One of the two connecting rods is fixedly connected to one side of a mounting rod 1, and the other of the two connecting rods is fixedly connected to one side of a mounting rod 2. One end of the mounting rod 1 is fixedly mounted with a camera 1, and one end of the mounting rod 2 is fixedly mounted with a camera 2.

3. The pressure testing device for building pipelines according to claim 1, characterized in that, Both movable plates are fixedly connected to an arc plate on the side that is close to each other. A telescopic rod is provided on the inner side of the spring. A baffle is fixedly connected to the top of the U-shaped plate. A magnetic plate is embedded in the upper surface of the baffle.

4. A pressure testing device for building pipelines according to claim 3, characterized in that, The power assembly includes an electric slide rail, which is vertically fixed to the inner wall of the housing. A lifting plate is slidably connected to one side of the electric slide rail, and a rack and a push plate are fixedly connected to one side of the lifting plate. A magnetic plate is embedded in the upper surface of the push plate.

5. A pressure testing device for building pipelines according to claim 4, characterized in that, The drive assembly includes a second spring, the upper end of which is connected to the inner top surface of the housing, and the lower end of which is connected to a movable plate. A ball is rotatably mounted on the bottom of the movable plate, and the ball can be inserted between the arcuate convex surfaces of two arcuate plates. A second telescopic rod is provided on the inner side of the second spring.

6. A pressure testing device for building pipelines according to claim 5, characterized in that, Magnetic plate three and magnetic plate four are embedded in the bottom of the movable plate. Magnetic plate one and magnetic plate three are opposite magnetic poles that attract each other. Magnetic plate two and magnetic plate four are opposite magnetic poles that attract each other.

7. A pressure testing device for building pipelines according to claim 1, characterized in that, The spray assembly includes a support rod, an infusion tube, and a spray plate. One end of the support rod is fixedly connected to the inner wall of the machine housing. A first support ring and a second support ring are fixedly connected to the support rod. A first rotating shaft is rotatably mounted on the inner side of the first support ring, and a second rotating shaft is rotatably mounted on the inner side of the second support ring. A gear that meshes with a rack is fixedly connected to one end of the first rotating shaft, and a first bevel gear is fixedly connected to the other end of the first rotating shaft. A second bevel gear is fixedly fitted onto the outer circumference of the second rotating shaft, and the first bevel gear and the second bevel gear mesh with each other.

8. A pressure testing device for building pipelines according to claim 7, characterized in that, A magnetic plate five is fixedly connected to the top of the rotating shaft two, a fixing frame is fixedly connected to one surface of the support rod, and a magnetic plate six is ​​fixedly connected to the inner side of the fixing frame. The magnetic plates five and six are opposite magnetic poles and attract each other.

9. A pressure testing device for building pipelines according to claim 8, characterized in that, A connecting plate is fixedly sleeved on the outer circumference of the second rotating shaft. The infusion tube is used to deliver the coupling agent. The infusion tube penetrates the side wall of the machine housing. The outer surface of the infusion tube is fixedly connected to the side wall of the machine housing. A ball valve is fixedly connected to the lower end of the second rotating shaft. The ball valve is located inside the infusion tube.

10. A pressure testing device for building pipelines according to claim 8, characterized in that, One end of the infusion tube is fixedly connected to a flexible tube, and the end of the flexible tube away from the infusion tube is fixedly connected to a spray tube. The outer surface of the spray tube is fixedly connected to a connecting plate. There are two spray plates. The sides of the two spray plates that are far apart from each other are fixedly connected to the spray tube, and the sides of the two spray plates that are close to each other are provided with nozzles.

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