Automatic detection device for water leakage of water pipe

Abstract

The invention relates to the technical field of water pipe detection, in particular to an automatic water pipe leakage detection device which comprises a detection frame, a fixing frame and a bearing plate mounted on the fixing frame, and is characterized in that an induction plate is mounted on the fixing frame, and pressure detection bins distributed at equal intervals in an array mode are arranged on the side, facing a water pipe, of the induction plate; according to the automatic detection device for water leakage of the water pipe, when the automatic detection device for water leakage of the water pipe is used, the pressure sensing bin is driven by the rotating piece to rotate in a mode of being attached to the water pipe, the water pipe can be detected carefully, and compared with static detection or local sampling detection, the dynamic detection mode has the advantages that the detection efficiency is greatly improved; according to the invention, leakage points on the water pipe can be positioned more quickly, omission is avoided, an accurate target position is provided for subsequent maintenance, pressure in the pressure detection bin is utilized to push the color developing block to move to contact with the water pipe to form a mark, and automatic marking of the leakage position is realized.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of water pipe detection, in particular to a water pipe leakage automatic detection device. BACKGROUND

[0002] As critical infrastructure in fluid delivery systems, water pipes bear the key task of safely and efficiently delivering water or other liquids to designated locations, and are usually made of materials such as metal and plastic. After water pipe processing is completed, it is necessary to use professional detection devices to detect water pipe leakage to check whether the air tightness meets the standard. In the existing water pipe leakage detection process, in order to ensure the accuracy of the detection result, the two ends of the water pipe must be in close contact with the sealing interface of the detection device during detection to prevent gas leakage. In actual operation, the worker needs to place the heavy steel water pipe at a specific position of the detection device to ensure that the two ends of the water pipe are in close contact with the sealing interface. This process not only requires the worker to have high concentration and precise operation skills, but also requires adjustment of the fixed position. The inconvenience of operation and excessive consumption of physical strength have brought many adverse effects, seriously affecting the work efficiency of the worker in water leakage detection.

[0003] To solve this problem, a water pipe air tightness pressure testing machine is disclosed in Chinese patent document CN118670643A. The first mounting plate is installed on one side of the upper surface of the first mounting plate. The second mounting plate is installed on the lower surface of the first moving plate along the horizontal direction. The moving block is fixed to the lower end of the sealing pad near the middle of the second mounting plate. The gas pressure sensor is installed on the moving block near the lower end of the sealing pad. The connecting pipe is installed on the moving block away from the gas pressure sensor. When the water pipe is subjected to air tightness pressure test, it is helpful to transport the water pipe, and the water pipe that needs to be subjected to air tightness pressure test can be easily put in and taken out, so as to ensure the working efficiency of the water pipe subjected to air tightness pressure test.

[0004] However, the above-mentioned device has the following problems in the process of use. After the gas pressure sensor detects that the water pipe has a leakage problem, it can only transport the water to different material receiving frames through the guide rail. However, due to the high cost of steel pipes, after the leakage is detected, the water pipe is usually repaired. The existing detection device can only simply distinguish whether the water pipe has a leakage, but cannot accurately locate the leakage point of the water pipe during detection. This leads to the fact that the worker still needs to spend additional time and effort to find the water leakage position when actually carrying out the repair work, thereby greatly reducing the repair efficiency and affecting the progress of the whole work. Therefore, we propose a water pipe leakage automatic detection device. SUMMARY

[0005] The technical problem to be solved by the present application is that the existing detection device can only simply distinguish whether the water pipe leaks or not, and cannot accurately locate the leakage point of the water pipe during the detection process, which leads to the fact that the staff still needs to spend additional time and effort to find the water leakage position when actually carrying out maintenance work, thereby greatly reducing the maintenance efficiency.

[0006] To solve the above technical problems, the present application provides a water pipe leakage automatic detection device, which comprises a detection frame, a fixing frame and a supporting plate mounted on the fixing frame, an induction plate is mounted on the fixing frame, the side of the induction plate facing the water pipe is provided with pressure detection chambers arranged in an equidistant array, a plurality of color development blocks used in cooperation with the pressure detection chambers are mounted on the induction plate, a detection unit is arranged on the fixing frame, the detection unit is used for air tightness detection of the water pipe, a marking unit connected with the induction plate and the color development blocks is arranged on the detection unit, after detecting the water pipe leakage, the pressure detection chambers are driven to move and form a sealing contact with the surface of the water pipe, and the leakage point is located through the pressure change in the pressure detection chambers, and then the color development blocks at the corresponding positions are driven to move and contact with the water pipe to mark the leakage point.

[0007] In some embodiments, the detection unit comprises a conveying member arranged on the detection frame, the conveying member is used for automatically conveying the water pipe to be detected to the supporting plate, a supporting member is arranged on the fixing frame, the supporting member is used for supporting the water pipe, and a testing member is arranged on the fixing frame, the testing member is used for detecting the air tightness of the water pipe.

[0008] In some embodiments, the conveying member comprises a docking frame arranged on the detection frame, a fixed plate is arranged on the detection frame, a rotating shaft is rotatably arranged on the fixed plate, one end of the rotating shaft is connected with a motor, a plurality of belt pulleys are arranged on the rotating shaft, a conveying belt used in cooperation with the belt pulleys is arranged on the conveying belt, and a plurality of feeding plates are arranged on the conveying belt.

[0009] In some embodiments, the supporting member comprises a guide plate arranged on the fixing frame, a supporting chamber is arranged on the fixing frame, the supporting chamber is in communication with the guide plate, a plurality of mounting blocks are arranged in the supporting chamber, a connecting rod is arranged on the mounting block, the connecting rod is in interference fit with the mounting block, the connecting rod is connected with the supporting plate, and the supporting plate is arc-shaped.

[0010] In some embodiments, the test piece includes multiple positioning plates arranged on a fixed frame, wherein a rotating screw is rotatably arranged on the positioning plate, and one end of the rotating screw is connected to the motor, a synchronous pulley is provided on the rotating screw, and a synchronous belt is provided on the synchronous pulley, a moving rod is provided on the rotating screw, the moving rod is threadedly connected to the rotating screw, a sliding groove is provided on the moving rod, and multiple sliding blocks are slidably provided in the sliding groove, a bidirectional screw 1 is rotatably provided in the sliding groove, the bidirectional screw 1 is threadedly connected to the sliding block, one end of the bidirectional screw is connected to the motor, and an electric push rod 1 is provided on each of the sliding blocks, a circular plate is provided at one end of the electric push rod, a sealing plug is provided on the circular plate, a pressure sensor is provided on the sealing plug, an inflation port is provided on the sealing plug, an inflation tube connected to the inflation port is provided on the sealing plug, and the inflation tube is connected to an external air pump, a collecting bin is provided on the fixed frame, and the collecting bin is divided into two chambers.

[0011] In some embodiments, the marking unit includes a mounting part provided on a circular plate, and the mounting part is used to install and fix the sensing plate. A rotating part is provided on the circular plate, and the rotating part is used to drive the sensing plate to rotate around the water pipe. A positioning part is provided on the sensing plate, and the positioning part is used to drive the color display block to mark the leakage point.

[0012] In some embodiments, the mounting member includes a rotating ring rotatably arranged on a circular plate, an extension rod is arranged on the rotating ring, a limiting plate is arranged at the end of the extension rod, a plurality of the extension rods are slidably provided with mounting tubes, the limiting plate is slidably connected to the mounting tube, a return spring is sleeved on one end of the extension rod extending into the mounting tube, an electric push rod 2 is arranged on the mounting tube, and the electric push rod 2 is connected to the induction plate.

[0013] In some embodiments, the rotating member includes a rotating tooth groove opened on the rotating ring, a power shaft is rotatably arranged on the circular plate, one end of the power shaft is connected to the motor, and a rotating gear engaged with the rotating tooth groove is arranged on the power shaft.

[0014] In some embodiments, the positioning member includes a pressure plate arranged on the sensing plate, and a plurality of isolation membranes used in conjunction with the pressure detection chamber are arranged on the sensing plate, and the isolation membranes are made of polyethylene. The pressure plate and the isolation membrane are both provided with sealing strips on the side facing the water pipe, and the sealing strips are made of rubber. An air duct connected to the pressure detection chamber is provided on the sensing plate, and a piston plate is slidingly arranged in the air duct, and a piston rod slidably connected to the air duct is provided on the piston plate, and an extrusion spring is sleeved on the piston rod, and the end of the piston rod located outside the air duct is connected to the color display block.

[0015] In some embodiments, reinforcing plates are slidably arranged at both ends of the supporting bin, power grooves are arranged on the side walls of the supporting bin, the reinforcing plates are slidably connected with the power grooves, a rotating shaft is rotatably arranged in the power grooves, and a bidirectional screw rod two is arranged on the rotating shaft and is threadedly connected with the reinforcing plates at both ends.

[0016] The present application has at least the following advantages: The pressure sensing bin is driven to rotate by the rotating member to detect the water pipe in detail. Compared with static detection or partial sampling, this dynamic detection method can quickly locate the leakage point on the water pipe, avoids omission, provides an accurate target position for subsequent maintenance, and automatically marks the leakage position by using the pressure in the pressure detection bin to push the color developing block to contact the water pipe and form a mark. This operation does not require manual marking, reduces the complexity and error of manual operation, and provides clear guidance for subsequent maintenance personnel. Moreover, since the leakage point can be accurately located and automatically marked, the maintenance personnel do not need to spend a lot of time searching for the leakage position in subsequent operation, and can directly maintain the marked position, greatly shortening the maintenance time and improving the maintenance efficiency.

[0017] The conveying member automatically lifts the water pipe to be detected to the supporting plate, without the need for manual carrying by the workers, greatly reducing the physical consumption of the workers and the labor intensity. The automatic conveying process is fast and stable, can significantly shorten the time of placing the water pipe in place compared with manual carrying, speed up the overall progress of the detection process, and improve the overall work efficiency, which is helpful to improve the detection efficiency. Moreover, manual carrying of the water pipe has the risk of dropping, which may not only cause personal injury, but also damage the water pipe and cause economic loss. The automatic conveying avoids this dangerous operation and fundamentally eliminates the safety hazard of dropping the water pipe. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present application; Figure 2 It is a schematic diagram of the overall structure of the present application; Figure 1 It is a schematic diagram of the overall structure of the present application; Figure 3 It is a schematic diagram of the overall structure of the present application; Figure 1 It is a schematic diagram of the overall structure of the present application; Figure 4 It is a schematic diagram of the overall structure of the present application; Figure 3 It is a schematic diagram of the overall structure of the present application; Figure 5 It is a schematic diagram of the overall structure of the present application; Figure 6 It is a schematic diagram of the overall structure of the present application; Figure 7Structure diagram of test piece of the present application; Figure 8 Structure diagram of mounting piece of the present application; Figure 9 Structure diagram of test piece of the present application; Figure 8 Structure diagram of B area of the present application; Figure 10 Structure diagram of mounting piece of the present application; Figure 11 Structure diagram of test piece of the present application; Figure 10 Structure diagram of C area of the present application; Figure 12 Structure diagram of positioning piece of the present application; Figure 13 Structure diagram of air guide pipe of the present application; Figure 14 Structure diagram of embodiment two of the present application.

[0019] In the figure: 1, detection frame; 2, fixed frame; 3, induction plate; 31, pressure detection bin; 4, bearing plate; 5, color block; 6, detection unit; 7, conveying piece; 71, butt joint frame; 72, fixed plate; 73, rotating shaft; 74, belt pulley; 75, conveying belt; 76, feeding plate; 8, bearing piece; 81, guide plate; 82, bearing bin; 83, mounting block; 84, connecting rod; 9, test piece; 91, positioning plate; 92, rotating lead screw; 93, synchronous pulley; 94, synchronous belt; 95, moving rod; 96, sliding groove; 97, sliding block; 98, electric push rod one; 99, round plate; 910, sealing plug; 911, inflation pipe; 912, collection bin; 913, bidirectional lead screw one; 10, marking unit; 11, mounting piece; 111, rotating ring; 112, extension rod; 113, limiting plate; 114, mounting pipe; 115, return spring; 116, electric push rod two; 12, rotating piece; 121, rotating gear slot; 122, power shaft; 123, rotating gear; 13, positioning piece; 131, pressing plate; 132, isolation film; 133, sealing strip; 134, air guide pipe; 135, piston plate; 136, piston rod; 137, extrusion spring; 14, reinforcing plate; 15, power groove; 16, rotating shaft; 17, bidirectional lead screw two. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0021] Embodiment 1: Please refer to Figures 1-13The application provides a technical scheme: a water pipe leakage automatic detection device, which comprises a detection frame 1, a fixing frame 2 and a supporting plate 4 mounted on the fixing frame 2, the fixing frame 2 is provided with an induction plate 3, the side of the induction plate 3 facing the water pipe is provided with pressure detection cavities 31 arranged in an equidistant array, a plurality of color development blocks 5 used in cooperation with the pressure detection cavities 31 are mounted on the induction plate 3, a detection unit 6 is arranged on the fixing frame 2, the detection unit 6 is used for carrying out air tightness detection on the water pipe, a marking unit 10 connected with the induction plate 3 and the color development blocks 5 is arranged on the detection unit 6, after detecting the water pipe leakage, the pressure detection cavities 31 are driven to move and form a sealed contact with the surface of the water pipe, and the leakage point is located through the pressure change in the pressure detection cavities 31, and then the color development blocks 5 at the corresponding positions are driven to move and contact the water pipe to mark the leakage point.

[0022] The detection unit 6 comprises a conveying part 7 arranged on the detection frame 1, the conveying part 7 is used for automatically conveying the water pipe to be detected to the supporting plate 4, a supporting part 8 is arranged on the fixing frame 2, the supporting part 8 is used for supporting the water pipe, and a testing part 9 is arranged on the fixing frame 2, the testing part 9 is used for detecting the air tightness of the water pipe.

[0023] The conveying part 7 comprises a butt joint frame 71 arranged on the detection frame 1, a fixed plate 72 is arranged on the detection frame 1, a rotating shaft 73 is rotatably arranged on the fixed plate 72, one end of the rotating shaft 73 is connected with a motor, a plurality of belt pulleys 74 are arranged on the rotating shaft 73, conveying belts 75 used in cooperation are arranged on the belt pulleys 74, and a plurality of feeding plates 76 are arranged on the conveying belts 75.

[0024] When detection is carried out, the butt joint frame 71 is first butt jointed with a water pipe conveying device, when the water pipe moves to the butt joint frame 71 through the conveying device, since the bearing surface of the butt joint frame 71 is an inclined surface, the water pipe will automatically roll to the side close to the conveying belts 75 under the action of gravity, at this time, the rotating shaft 73 rotates to drive the belt pulleys 74 arranged thereon to rotate synchronously, the belt pulleys 74 rotate to drive the conveying belts 75 to rotate, the conveying belts 75 rotate to drive the feeding plates 76 arranged thereon to rotate synchronously, the feeding plates 76 contact the water pipe in the rotating process and drive the water pipe to lift and move, the above design realizes automatic alignment and preliminary arrangement of the water pipe before entering the subsequent detection process by butt jointing the butt joint frame 71 with the water pipe conveying device, utilizing the inclined surface design of the bearing surface of the butt joint frame 71 and utilizing gravity to make the water pipe automatically roll to the side close to the conveying belts 75. The position of the water pipe does not need to be adjusted manually, the labor cost is saved, and the work efficiency is improved, the whole conveying process has high automation degree, the components work cooperatively, the error and uncertainty caused by manual operation are reduced. The automatic conveying and alignment mode can quickly and accurately convey the water pipe to the detection position, greatly shortens the preparation time before detection and improves the detection efficiency.

[0025] The supporting piece 8 comprises a guide plate 81 arranged on the fixing frame 2, the fixing frame 2 is provided with a supporting bin 82 which communicates with the guide plate 81, a plurality of mounting blocks 83 are arranged in the supporting bin 82, a connecting rod 84 is arranged on the mounting block 83 and is in interference fit with the mounting block 83, the connecting rod 84 is connected with the supporting plate 4, and the supporting plate 4 is arc-shaped.

[0026] The water pipe is separated from the feeding plate 76 during continuous movement and falls onto the guide plate 81, rolls under the slope guide of the guide plate 81, and falls onto the supporting plate 4 in the supporting bin 82 to wait for detection. The interference fit between the connecting rod 84 and the mounting block 83 enables the workers to quickly replace the supporting plate 4 when facing pipes of different diameters, and the smooth rolling is realized by relying on the slope guide of the guide plate 81, and finally falls onto the supporting plate 4 in the supporting bin 82 to wait for detection. This process is closely connected, reduces the pause and delay of the water pipe during conveying, significantly improves the conveying efficiency, ensures that the detection process can proceed quickly and orderly, and the interference fit between the connecting rod 84 and the mounting block 83 enables the workers to quickly and conveniently replace the supporting plate 4 when facing pipes of different diameters, without the need for complex operation and a large amount of time investment. The supporting plate 4 can be adjusted according to actual needs, greatly improving the adaptability and flexibility of the equipment and meeting diversified production and detection needs.

[0027] The test piece 9 comprises a plurality of positioning plates 91 arranged on the fixing frame 2, a rotating lead screw 92 is rotatably arranged on the positioning plate 91, one end of the rotating lead screw 92 is connected with a motor, a synchronous pulley 93 is arranged on the rotating lead screw 92, a synchronous belt 94 is arranged on the synchronous pulley 93, a moving rod 95 is arranged on the rotating lead screw 92, the moving rod 95 is threadedly connected with the rotating lead screw 92, a sliding groove 96 is formed in the moving rod 95, a plurality of sliding blocks 97 are slidably arranged in the sliding groove 96, a bidirectional lead screw one 913 is rotatably arranged in the sliding groove 96, the bidirectional lead screw one 913 is threadedly connected with the sliding block 97, and one end of the bidirectional lead screw one 913 is connected with the motor. A plurality of electric push rods one 98 are arranged on the sliding blocks 97, a circular plate 99 is arranged at one end of the electric push rod one 98, a sealing plug 910 is arranged on the circular plate 99, a pressure sensor is arranged on the sealing plug 910, an inflation port is formed in the sealing plug 910, an inflation pipe 911 connected with the inflation port is arranged on the sealing plug 910, and the inflation pipe 911 is connected with an external air pump. The fixing frame 2 is provided with a collection bin 912, and the collection bin 912 is divided into two chambers.

[0028] When the rotating screw rod 92 rotates, it drives multiple rotating screw rods 92 to rotate synchronously through the synchronous pulley 93 and the synchronous belt 94. The rotating screw rod 92 drives the moving rod 95 to move, and the moving rod 95 drives the sealing plug 910 to move to the water pipe directly above. Then, the bidirectional screw rod one 913 works, driving the two sliding blocks 97 to rotate in opposite directions, so that the distance between the two sealing plugs 910 is greater than the length of the water pipe. Then, the sealing plug 910 is lowered by the electric push rod until it is on the same axis as the water pipe. After completion, the two sealing plugs 910 move towards each other to clamp the water pipe and seal the two ends of the water pipe with the sealing plug 910. Then, the air pump is started, and the water pipe is inflated through the inflation pipe 911. At the same time, because the sealing plug 910 is provided with a pressure sensor, according to the change of the sensor data, the qualified water pipe and the leaking water pipe are placed in different chambers in the collection bin 912, which is convenient for subsequent processing. Through the cooperative work of the rotating screw rod 92, the synchronous pulley 93, the synchronous belt 94, the moving rod 95 and other components, the sealing plug 910 is accurately moved to the water pipe directly above, and then the bidirectional screw rod one 913 and the electric push rod are used to accurately adjust the position of the sealing plug 910 and complete the clamping and sealing of the two ends of the water pipe. The whole process has high automation degree, accurate positioning and efficient operation, reduces the error and uncertainty of manual operation, improves the accuracy and efficiency of detection, and adjusts the distance between the two sealing plugs 910 by the bidirectional screw rod one 913, which can easily adapt to the needs of water pipes of different lengths. This flexible design enhances the versatility and adaptability of the equipment, without the need to replace special equipment for water pipes of different lengths, reducing equipment cost and use difficulty.

[0029] The marking unit 10 includes a mounting member 11 arranged on the circular plate 99, which is used to mount and fix the sensing plate 3. The circular plate 99 is provided with a rotating member 12, which is used to drive the sensing plate 3 to rotate around the water pipe. The sensing plate 3 is provided with a positioning member 13, which is used to drive the color developing block 5 to mark the leakage point.

[0030] The mounting member 11 includes a rotating ring 111 rotatably arranged on the circular plate 99. The rotating ring 111 is provided with an extension rod 112, and the end of the extension rod 112 is provided with a limiting plate 113. A plurality of extension rods 112 are slidably arranged with a mounting pipe 114. The limiting plate 113 is slidably connected with the mounting pipe 114. One end of the extension rod 112 extending into the mounting pipe 114 is sleeved with a return spring 115. The mounting pipe 114 is provided with an electric push rod two 116. The electric push rod two 116 is connected with the sensing plate 3, and the electric push rod two 116 is provided with a stable telescopic rod at both ends.

[0031] During the expansion of the sealing plug 910 at both ends, the design of the extension rod 112 and the limiting plate 113 effectively avoids the interference of the installation pipe 114 with the normal expansion action of the sealing plug 910, ensures that the sealing plug 910 can smoothly expand according to the preset trajectory and amplitude, and the setting of the electric push rod two 116 can accurately extrude the sealing strip 133, so that the pressure detection chamber 31 is tightly attached to the surface of the water pipe, forming a reliable sealing contact. This sealing effect effectively prevents the leakage of gas in the pressure detection chamber 31 during detection, thereby improving the accuracy of locating the leakage point of the water pipe and enabling more accurate judgment of whether the water pipe is leaking and the specific location of the leakage, providing a reliable basis for subsequent maintenance or treatment.

[0032] The rotating member 12 includes a rotating gear slot 121 opened in the rotating ring 111, and a power shaft 122 is rotatably arranged on the circular plate 99, one end of the power shaft 122 is connected with the motor, and the power shaft 122 is provided with a rotating gear 123 engaged with the rotating gear slot 121. The rotation process of the induction plate 3 is phased, which will stay at each position of the water pipe for a fixed time for detection.

[0033] When the power shaft 122 rotates, the rotating gear 123 arranged thereon rotates synchronously, the rotating gear 123 rotates to drive the rotating gear slot 121 engaged therewith to rotate, thereby driving the rotating ring 111 to rotate, and the rotating ring 111 drives the extension rod 112, the installation pipe 114 connected with the extension rod 112 and the induction plate 3 to rotate around the water pipe in the state of adhesion, so as to detect the entire outer surface of the water pipe to quickly locate the leakage point. The power shaft 122 drives the rotating gear 123 to rotate, and through the meshing transmission of the gear and the gear slot, the rotating ring 111 is driven to rotate, thereby making the extension rod 112, the installation pipe 114 and the induction plate 3 rotate around the water pipe in the state of adhesion to the water pipe. This ring-around detection method can cover the entire outer surface of the water pipe, ensuring the comprehensiveness and accuracy of detection and effectively avoiding the occurrence of missed detection. The entire detection device realizes the ring-around detection of the water pipe through the cooperative work of the power shaft 122, the rotating gear 123, the rotating gear slot 121, the rotating ring 111 and other components, has a compact structure and occupies a small space. At the same time, the design has strong adaptability and can be applied to the detection of water pipes of different diameters and specifications, thereby reducing equipment cost and use difficulty.

[0034] The positioning member 13 comprises a pressing plate 131 arranged on the sensing plate 3, and a plurality of isolation membranes 132 made of polyethylene and arranged on the sensing plate 3 and matched with the pressure detection chamber 31, the pressing plate 131 and the isolation membranes 132 are provided with sealing strips 133 made of rubber on the side facing the water pipe, the sensing plate 3 is provided with an air guide pipe 134 communicated with the pressure detection chamber 31, the air guide pipe 134 is slidably provided with a piston plate 135, the piston plate 135 is provided with a piston rod 136 slidably connected with the air guide pipe 134, the piston rod 136 is sleeved with an extrusion spring 137, and the piston rod 136 is connected with the color developing block 5 at the end outside the air guide pipe 134, the isolation membranes 132 made of polyethylene are soft, inelastic and air-tight, which can effectively reduce the error in the detection process.

[0035] After the pressure detection chamber 31 coincides with the leakage point, the pressure in the pressure detection chamber 31 gradually increases due to the close environment formed by the pressure detection chamber 31 and the surface of the water pipe, and the piston plate 135 moves under the high pressure and overcomes the elastic force of the extrusion spring 137, and synchronously pushes the color developing block 5 to move, and the color developing block 5 contacts the surface of the water pipe and leaves a mark on the surface of the water pipe during the movement, so as to facilitate the inspector to quickly locate the leakage point, when the pressure detection chamber 31 coincides with the leakage point, the pressure in the chamber increases due to the close environment formed by the pressure detection chamber 31 and the surface of the water pipe, the piston plate 135 is pushed to move and overcome the elastic force of the spring, and the color developing block 5 is further driven to contact the surface of the water pipe and leave a mark, the whole process does not need manual intervention, can automatically and accurately mark the leakage point, avoids the error and omission of manual marking, greatly improves the accuracy of the leakage point positioning, and the automatic marking function makes the inspector not need to manually mark the leakage point in the detection process, reduces the operation steps and waiting time. The marking of the leakage point can be realized at the same time of completing the pressure detection, greatly shortens the time of the whole detection process, improves the detection efficiency, and helps to speed up the follow-up maintenance work.

[0036] Embodiment 2: please refer to Figure 14The application provides a technical scheme: the reinforcing plates 14 are slidly arranged at the two ends of the bearing bin 82, power grooves 15 are arranged in the side walls of the bearing bin 82, the reinforcing plates 14 are slidly connected with the power grooves 15, rotating shafts 16 are rotatably arranged in the power grooves 15, bidirectional screw rods two 17 are arranged on the rotating shafts 16, the two ends of the bidirectional screw rods two 17 are respectively threadedly connected with the reinforcing plates 14, the rotating shafts 16 are connected with motors, the bidirectional screw rods two 17 are driven to rotate in the detection process, the two reinforcing plates 14 are driven to move towards each other, the sealing plug 910 is reinforced, and the probability of air leakage at the two ends of the water pipe is further reduced, in the detection process, the bidirectional screw rods two 17 are driven to rotate by the motors, the reinforcing plates 14 at the two ends of the bearing bin 82 are driven to move towards each other, and the sealing plug 910 is subjected to radial pressurization, the reinforcing measure can effectively increase the close degree of the sealing plug 910 and the water pipe, the probability of air leakage of the sealing plug 910 at the two ends of the water pipe is further reduced, the stability of the pressure environment in the detection process is ensured, and therefore the accuracy and reliability of the detection result are improved, and the effective sealing and reinforcement can prevent safety hazards such as pressure abnormality or gas leakage caused by air leakage of the sealing plug 910.

[0037] It should be noted that the relative terms such as first and second, and the like are used herein only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between such entities or operations. Moreover, the terms "comprising", "including", or any other variant thereof are intended to cover non-exclusive inclusion, so that processes, methods, articles, or equipment including a series of elements not only include those elements, but also include other elements not explicitly listed, or inherent to such processes, methods, articles, or equipment.

[0038] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made thereto without departing from the principles and spirit of the present application.

Claims

1. An automatic water pipe leakage detection device, comprising a detection frame (1), a fixing frame (2) and a supporting plate (4) mounted on the fixing frame (2), characterized in that: The fixing frame (2) is provided with a sensing plate (3), and a pressure detection chamber (31) is provided on the side of the sensing plate (3) facing the water pipe and is distributed in an array with equal intervals. The sensing plate (3) is provided with a plurality of color blocks (5) used in conjunction with the pressure detection chamber (31). The fixing frame (2) is provided with a detection unit (6), and the water pipe is tested for air tightness by using the detection unit (6). The detection unit (6) is provided with a marking unit (10) connected to the sensing plate (3) and the color blocks (5). After detecting a water pipe leak, the pressure detection chamber (31) is driven to move and fit into the water pipe surface to form a sealed contact, and the leak point is located by the pressure change in the pressure detection chamber (31), and the leak point is marked by driving the color blocks (5) at the corresponding position to move and contact the water pipe.

2. The automatic water pipe leakage detection device according to claim 1, characterized in that: The detection unit (6) comprises a conveying member (7) arranged on the detection frame (1), and the water pipe to be detected is automatically transported to the supporting plate (4) by using the conveying member (7); the fixing frame (2) is provided with a supporting member (8), and the water pipe is supported by using the supporting member (8); the fixing frame (2) is provided with a testing member (9), and the air tightness of the water pipe is tested by using the testing member (9).

3. The automatic water pipe leakage detection device according to claim 2, characterized in that: The conveying member (7) comprises a docking frame (71) arranged on the detection frame (1); a fixed plate (72) is arranged on the detection frame (1); a rotating shaft (73) is rotatably arranged on the fixed plate (72); one end of the rotating shaft (73) is connected to a motor; a plurality of pulleys (74) are arranged on the rotating shaft (73); a conveying belt (75) for use with the pulleys (74) is arranged on the conveying belt (75); and a plurality of feeding plates (76) are arranged on the conveying belt (75).

4. The automatic water pipe leakage detection device according to claim 3, characterized in that: The supporting member (8) comprises a guide plate (81) arranged on a fixing frame (2); a supporting chamber (82) is arranged on the fixing frame (2); the supporting chamber (82) is communicated with the guide plate (81); a plurality of mounting blocks (83) are arranged in the supporting chamber (82); a connecting rod (84) is arranged on the mounting block (83); the connecting rod (84) and the mounting block (83) are interference-fitted; the connecting rod (84) is connected to the supporting plate (4); and the supporting plate (4) is arc-shaped.

5. The automatic water pipe leakage detection device according to claim 4, characterized in that: The test piece (9) includes a plurality of positioning plates (91) arranged on a fixed frame (2), a rotating screw (92) is rotatably arranged on the positioning plate (91), and one end of the rotating screw (92) is connected to a motor, a synchronous pulley (93) is arranged on the rotating screw (92), a synchronous belt (94) is arranged on the synchronous pulley (93), a moving rod (95) is arranged on the rotating screw (92), the moving rod (95) is threadedly connected to the rotating screw (92), a sliding groove (96) is provided on the moving rod (95), a plurality of sliding blocks (97) are slidably arranged in the sliding groove (96), a bidirectional screw (913) is rotatably arranged in the sliding groove (96), and the rotating screw (92) is provided with a synchronous belt (94). The bidirectional screw rod (913) is threadedly connected to the sliding block (97), and the end of the bidirectional screw rod (913) is connected to the motor. A plurality of sliding blocks (97) are each provided with an electric push rod (98), and a circular plate (99) is provided at the end of the electric push rod (98). A sealing plug (910) is provided on the circular plate (99), and a pressure sensor is provided on the sealing plug (910). An inflation port is provided on the sealing plug (910), and an inflation tube (911) connected to the inflation port is provided on the sealing plug (910), and the inflation tube (911) is connected to an external air pump. A collecting bin (912) is provided on the fixing frame (2), and the collecting bin (912) is divided into two chambers.

6. The automatic water pipe leakage detection device according to claim 5, characterized in that: The marking unit (10) includes a mounting member (11) arranged on a circular plate (99), and the mounting member (11) is used to mount and fix the sensing plate (3). The circular plate (99) is provided with a rotating member (12), and the rotating member (12) is used to drive the sensing plate (3) to rotate around the water pipe. The sensing plate (3) is provided with a positioning member (13), and the positioning member (13) is used to drive the color block (5) to mark the leakage point.

7. The automatic water pipe leakage detection device according to claim 6, characterized in that: The mounting member (11) includes a rotating ring (111) rotatably arranged on a circular plate (99), an extension rod (112) is arranged on the rotating ring (111), a limit plate (113) is arranged at the end of the extension rod (112), a plurality of the extension rods (112) are slidably provided with a mounting tube (114), the limit plate (113) is slidably connected to the mounting tube (114), one end of the extension rod (112) extending into the mounting tube (114) is sleeved with a return spring (115), and the mounting tube (114) is provided with a second electric push rod (116), and the second electric push rod (116) is connected to the induction plate (3).

8. The automatic water pipe leakage detection device according to claim 7, characterized in that: The rotating member (12) includes a rotating tooth groove (121) provided on the rotating ring (111); a power shaft (122) is rotatably provided on the circular plate (99); one end of the power shaft (122) is connected to the motor; and a rotating gear (123) is provided on the power shaft (122) and is engaged with the rotating tooth groove (121).

9. The automatic water pipe leakage detection device according to claim 8, characterized in that: The positioning member (13) comprises a pressure plate (131) arranged on the sensing plate (3); a plurality of isolation membranes (132) used in conjunction with the pressure detection chamber (31) are arranged on the sensing plate (3); the isolation membranes (132) are made of polyethylene; a sealing strip (133) is provided on the side of the pressure plate (131) and the isolation membrane (132) facing the water pipe; the sealing strip (133) is made of rubber; an air guide tube (134) communicating with the pressure detection chamber (31) is provided on the sensing plate (3); a piston plate (135) is slidably arranged in the air guide tube (134); a piston rod (136) slidably connected to the air guide tube (134) is provided on the piston plate (135); an extrusion spring (137) is sleeved on the piston rod (136); and one end of the piston rod (136) located outside the air guide tube (134) is connected to the color development block (5).

10. The automatic water pipe leakage detection device according to claim 9, characterized in that: Reinforcement plates (14) are slidably provided at both ends of the supporting bin (82), a power groove (15) is provided on the side wall of the supporting bin (82), the reinforcement plate (14) is slidably connected to the power groove (15), a rotating shaft (16) is rotatably provided in the power groove (15), a bidirectional screw rod (17) is provided on the rotating shaft (16), both ends of the bidirectional screw rod (17) are threadedly connected to the reinforcement plate (14), and the rotating shaft (16) is connected to the motor.

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