A pipe loss detecting device for an underground water supply pipe network

Abstract

The application belongs to the technical field of pipe loss detection devices, and discloses a pipe loss detection device for underground water supply pipe network, which comprises a lower clamping block and an upper clamping block, the outer side of the lower clamping block is fixedly connected with a lower mounting plate, the inner wall of the lower mounting plate is fixedly installed with a first humidity-sensitive resistor, the outer side of the lower clamping block is fixedly installed with a lower connecting plate, and the outer side of the upper clamping block is fixedly connected with an upper mounting plate. The lower clamping block and the upper clamping block are fixedly connected together and wrapped outside the to-be-detected pipeline, and the detection personnel can directly walk slowly by pulling the handle, so that the lower clamping block and the upper clamping block slide along the to-be-detected pipe wall stably by relying on the ball bearings. When a water leakage area is encountered, the water droplets directly drop on the first humidity-sensitive resistor, the first humidity-sensitive resistor is in contact with water and can immediately trigger the alarm device to remind, so that the water leakage position of the pipeline in this section of pipeline can be directly detected, and the range is reduced.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of pipe loss detection devices, and particularly relates to a pipe loss detection device for underground water supply pipe networks. BACKGROUND

[0002] The underground water supply pipe network refers to a pressurized water conveying system composed of a plurality of pipelines in a branched, parallel or series manner. The pipelines are basically installed in a pipe gallery underground. Since the interior of the underground pipe gallery is in a dark environment for a long time, the outside of the pipeline is prone to corrosion and cracks, and water leakage occurs. The water caused by the cracks slowly flows outward, rather than being sprayed out, so the sound of water leakage is weak. In addition, the dark environment makes it difficult for people to discover and for existing detection equipment such as a leak detector to detect. Long time will cause a large waste of water resources and easily cause safety hazards.

[0003] The pipe loss detection method for the underground water supply pipe network in the prior art is mostly to use a leak detector and other instruments for detection. The device realizes detection by amplifying the sound of water sprayed outward and colliding with an object. However, for some pipelines with cracks that slowly leak water, the device cannot accurately detect, and workers can only enter the interior of the pipe gallery to check the pipeline by hand holding a lighting device. The workers observe the pipeline while walking. Since the water at the crack place becomes water droplets by accumulating at the bottom of the pipeline and then drops, the dropping sound is weak and difficult to be discovered in the dim environment, and there is a possibility of omission. This not only greatly increases the workload of the workers and reduces the detection efficiency, but also makes the detection accuracy rate low. SUMMARY

[0004] The application aims to provide a pipe loss detection device for an underground water supply pipe network to solve the problems in the background art.

[0005] In order to achieve the above object, the present application provides the following technical scheme: a pipe loss detection device for underground water supply pipe network, comprising a lower clamping block and an upper clamping block, the outer side of the lower clamping block is fixedly connected with a lower mounting plate, the inner wall of the lower mounting plate is fixedly installed with a first humidity resistor, the outer side of the lower clamping block is fixedly installed with a lower connecting plate, the outer side of the upper clamping block is fixedly connected with an upper mounting plate, the outer side of the upper clamping block is fixedly installed with an upper connecting plate, the upper mounting plate and the lower mounting plate are both movably connected with a movable plate, the outer side of the movable plate is fixedly connected with a gear ring, the top of the upper clamping block is fixedly installed with a motor, the outer side of the motor is fixedly connected with a connecting rod, the outer side of the connecting rod is fixedly installed with a gear engaged with the gear ring, the inner wall of the lower clamping block and the upper clamping block is movably installed with a ball, the movable plate on the upper clamping block is fixedly installed with a fixed block, the movable plate on the upper clamping block is fixedly installed with a wiping plate, the middle part of the fixed block is movably connected with a top rod, the bottom of the top rod is fixedly installed with a second humidity resistor, the bottom of the top rod is fixedly connected with a water-absorbing cotton, the movable plate on the upper clamping block is fixedly connected with a fixed rod, the bottom of the lower connecting plate is fixedly connected with a fixed plate, the outer side of the fixed plate is fixedly connected with a handle.

[0006] Preferably, the outer side of the upper connecting plate and the lower connecting plate is provided with a semi-limiting groove, the outer side of the fixed plate is provided with a sliding groove, the outer side of the fixed plate is fixedly connected with a first spring, and the outer end of the first spring is fixedly connected with a limiting block in sliding connection with the sliding groove.

[0007] Preferably, the top of the upper mounting plate is provided with a rectangular opening, and the outer side of the connecting rod is fixedly installed with a support frame fixedly connected with the upper mounting plate.

[0008] Preferably, the inner side of the water-absorbing cotton is provided with fluorescent powder, the top of the left and right ends of the water-absorbing cotton is fixedly connected with a plug-in plate, and the outer side of the plug-in plate is provided with a plug-in opening.

[0009] Preferably, the bottom of the fixed rod is movably connected with a second resisting plate, and the outer side of the top rod is fixedly connected with a first resisting plate.

[0010] Preferably, the middle part of the fixed block is provided with a cavity, the inner side of the cavity is fixedly connected with a second spring fixedly connected with the top rod, and the top rod and the cavity are in sliding connection.

[0011] Preferably, the left and right sides of the lower end of the top rod are both provided with an inlaid groove, the middle part of the inlaid groove is provided with a through opening, the inner side of the inlaid groove is fixedly connected with a third spring, the inner side of the through opening is slidably connected with a limiting plug-in plate fixedly connected with the third spring, and the bottom of the left and right ends of the top rod is provided with a connecting opening in communication with the through opening.

[0012] Preferably, the bottom of the upper clamping block is provided with a mounting opening, the bottom of the lower clamping block is fixedly provided with a limiting plate, and the bottom of the lower mounting plate is fixedly provided with an alarm device.

[0013] The beneficial effects of the present application are as follows:

[0014] 1、The lower clamping block is located at the bottom of the pipeline to be detected, and then the upper clamping block is combined on the lower clamping block, so that the limiting plate is inserted into the mounting opening, and the semi-limiting grooves on the upper connecting plate and the lower connecting plate form a limiting groove, the limiting block is inserted into the limiting groove along the sliding groove by the first spring with elasticity, so that the lower clamping block and the upper clamping block are fixedly connected together and wrapped outside the pipeline to be detected, and the detection personnel can directly walk slowly by pulling the handle, so that the lower clamping block and the upper clamping block slide along the pipeline wall to be detected stably by relying on the rolling balls, when the water leakage area is encountered, the water droplets directly drop on the first wet resistance, the first wet resistance is in contact with water, and the alarm device is triggered immediately to remind, so that the water leakage position of the pipeline in this section can be directly detected, and the range is reduced.

[0015] 2、The motor works to drive the connecting rod and the gear to rotate slowly, so that the movable plate is driven to rotate by the gear ring, and the wiping plate wipes the outer wall of the pipeline in this section, since the water leakage is slow, after the water stains are wiped, only the crack position is still leaking water, and other positions of the pipeline are free of water stains, and in the process, the water-absorbing cotton slides along the wiping track and is extrudedly attached to the outer wall of the pipeline, when the water-absorbing cotton passes through the crack water leakage position, the water-absorbing cotton absorbs the water and conducts the water to the second wet resistance, and when the second wet resistance detects water, the alarm device is triggered again, so that the water leakage position can be determined, and the detection efficiency is greatly improved.

[0016] 3、When the water-absorbing cotton absorbs the water leaking from the crack of the pipeline, the water-absorbing cotton directly mixes with the fluorescent powder, the fluorescent powder mixed with water slowly flows out of the water-absorbing cotton, and when the water-absorbing cotton is extrudedly attached to the outer wall of the pipeline, the water mixed with the fluorescent powder in the water-absorbing cotton continuously flows out, so as to be attached to the outer wall of the pipeline, and a luminous mark is formed in a dark environment, the luminous mark surrounds the pipeline, since the flowing water carries away the luminous mark on the way, only the water outlet position is black, and the flowing position is a black line, so that subsequent maintenance personnel can quickly find the damaged position of the pipeline according to the mark and effectively maintain. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a whole schematic view of the present application;

[0018] Figure 2 It is a structure schematic view of the connecting position of the limiting block and the semi-limiting groove;

[0019] Figure 3 Schematic view of the profile structure of the connecting part of the limiting block and the sliding groove of the present application;

[0020] Figure 4 Schematic view of the first humidity resistor position of the present application;

[0021] Figure 5 Schematic view of the wiping plate position of the present application;

[0022] Figure 6 Schematic view of the profile structure of the water-absorbing cotton of the present application;

[0023] Figure 7 Schematic view of the profile structure of the water-absorbing cotton of the present application; Figure 5 Schematic view of the profile structure of the water-absorbing cotton of the present application;

[0024] Figure 8 Schematic view of the profile structure of the water-absorbing cotton of the present application;

[0025] Figure 9 Schematic view of the profile structure of the water-absorbing cotton of the present application;

[0026] Figure 10 Schematic view of the profile structure of the water-absorbing cotton of the present application;

[0027] In the figure: 1, lower clamping block; 2, upper clamping block; 201, mounting port; 3, upper connecting plate; 301, half-limiting groove; 4, lower connecting plate; 5, fixed plate; 501, first spring; 502, limiting block; 503, sliding groove; 6, handle; 7, ball; 8, upper mounting plate; 801, rectangular port; 9, motor; 10, connecting rod; 11, gear; 12, gear ring; 13, movable plate; 14, lower mounting plate; 15, first humidity resistor; 16, wiping plate; 17, water-absorbing cotton; 171, fluorescent powder; 172, plug-in plate; 173, plug-in port; 18, fixed block; 181, cavity; 182, second spring; 19, top rod; 191, first stop plate; 192, limiting plug-in plate; 193, through port; 194, inlaid groove; 195, third spring; 20, fixed rod; 2001, second stop plate; 21, second humidity resistor. DETAILED DESCRIPTION

[0028] 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.

[0029] As Figures 1 to 10As shown, the embodiment of the present application provides a kind of pipe loss detection device of underground water supply network, including lower clamp block 1 and upper clamp block 2, the outside of lower clamp block 1 is fixedly connected with lower mounting plate 14, first humidity resistance 15 is fixedly installed on the inner wall of lower mounting plate 14, lower connecting plate 4 is fixedly installed on the outside of lower clamp block 1, the outside of upper clamp block 2 is fixedly connected with upper mounting plate 8, upper connecting plate 3 is fixedly installed on the outside of upper clamp block 2, upper mounting plate 8 and lower mounting plate 14 are movably connected with movable plate 13, movable plate 13 is fixedly connected with gear ring 12 outside, motor 9 is fixedly installed on the top of upper clamp block 2, connecting rod 10 is fixedly connected with motor 9 outside, gear 11 meshing with gear ring 12 is fixedly installed on the outside of connecting rod 10, ball 7 is movably installed on the inner wall of lower clamp block 1 and upper clamp block 2, fixed block 18 is fixedly installed on the movable plate 13 of upper clamp block 2, wiping plate 16 is fixedly installed on the movable plate 13 of upper clamp block 2, top rod 19 is movably connected with the middle part of fixed block 18, second humidity resistance 21 is fixedly installed on the bottom of top rod 19, water-absorbing cotton 17 is fixedly connected with the bottom of top rod 19, fixed rod 20 is fixedly connected with the movable plate 13 of upper clamp block 2, fixed plate 5 is fixedly connected with the bottom of lower connecting plate 4, handle 6 is fixedly connected with the outside of fixed plate 5;

[0030] The working principle and beneficial effects of the above technical scheme are as follows: by locating the lower clamping block 1 at the bottom of the pipeline to be detected, and then combining the upper clamping block 2 with the lower clamping block 1, the limiting plate is inserted into the installation opening 201, then the half-limiting grooves 301 on the upper connecting plate 3 and the lower connecting plate 4 form a limiting groove, the limiting block 502 is inserted into the limiting groove along the sliding groove 503 by the first spring 501 with elasticity, so that the lower clamping block 1 and the upper clamping block 2 are fixedly connected together and wrapped outside the pipeline to be detected, and the detection personnel can directly walk slowly by pulling the handle 6, so that the lower clamping block 1 and the upper clamping block 2 slide stably along the pipeline wall to be detected by relying on the rolling balls 7, when encountering a water leakage area, the water droplets will directly drop on the first moisture resistance 15, and the first moisture resistance 15 will immediately trigger the alarm device to remind, so that the water leakage position of the pipeline in this section can be directly detected, and the range is narrowed; the connecting rod 10 and the gear 11 are slowly rotated by the work of the motor 9, so that the movable plate 13 is driven to rotate by the gear ring 12, and then the wiping plate 16 wipes the outer wall of the pipeline in this section, since the water leakage is slow, after the water stains are wiped, only the crack position is still leaking water, and other areas of the pipeline have no water stains, and in the process, the water-absorbing cotton 17 will slide along the wiping track and be extrudedly attached to the outer wall of the pipeline, when the water-absorbing cotton 17 passes through the crack water leakage position, the water-absorbing cotton 17 will absorb the water and conduct it to the second moisture resistance 21, when the second moisture resistance 21 detects the water, the alarm device will be triggered again, so that the water leakage position can be determined; when the water-absorbing cotton 17 absorbs the water leaking from the crack of the pipeline, the water mixed with the fluorescent powder 171 will slowly flow out through the water-absorbing cotton 17, when the water-absorbing cotton 17 is extrudedly attached to the outer wall of the pipeline, the water mixed with the fluorescent powder 171 in the water-absorbing cotton 17 will continuously flow out, and then adhere to the outer wall of the pipeline, and form a luminous mark in a dark environment, the luminous mark surrounds the pipeline, since the flowing water will take away the luminous mark on the way, only the outlet position is black, and a black line is formed on the flowing position, so that the subsequent maintenance personnel can quickly find the damaged position of the pipeline according to the mark, and effectively repair.

[0031] As shown in Figure 2 , 3 in an embodiment, half-limiting grooves 301 are formed on the outer sides of the upper connecting plate 3 and the lower connecting plate 4, a sliding groove 503 is formed on the outer side of the fixed plate 5, a first spring 501 is fixedly connected to the outer side of the fixed plate 5, and a limiting block 502 in sliding connection with the sliding groove 503 is fixedly connected to the outer end of the first spring 501;

[0032] The working principle and beneficial effects of the technical scheme are that when the upper clamping block 2 is attached to the lower clamping block 1, the half-limiting grooves 301 on the upper connecting plate 3 and the lower connecting plate 4 form a limiting groove, the limiting block 502 is inserted into the limiting groove along the sliding groove 503 by the first spring 501 with elasticity, so that the lower clamping block 1 and the upper clamping block 2 are fixedly connected together, and are wrapped outside the pipeline to be detected, facilitating installation and disassembly during use.

[0033] As shown in the drawings, Figure 4 In one embodiment, a rectangular port 801 is formed at the top of the upper mounting plate 8, and a support frame fixedly connected with the upper mounting plate 8 is fixedly installed on the outside of the connecting rod 10.

[0034] The working principle and beneficial effects of the technical scheme are that the water-absorbing cotton 17 can be replaced at the rectangular port 801, and the water-absorbing cotton 17 is replaced after each water absorption, so that the water-absorbing cotton 17 installed is dry, and the detection work can continue normally.

[0035] As shown in the drawings, Figure 8 , 9 In one embodiment, the inside of the water-absorbing cotton 17 is provided with fluorescent powder 171, and the top of the left and right ends of the water-absorbing cotton 17 is fixedly connected with a plug plate 172, and the outside of the plug plate 172 is provided with a plug port 173.

[0036] The working principle and beneficial effects of the technical scheme are that when the water-absorbing cotton 17 absorbs water from the pipe crack, the fluorescent powder 171 will be mixed directly, and the fluorescent powder 171 mixed with water will slowly flow out through the water-absorbing cotton 17; the plug plate 172 is inserted into the connecting port, and the limiting plug plate 192 is inserted into the plug port 173 to limit and fix the plug plate 172 in the connecting port, so that the fixing and installation of the water-absorbing cotton 17 are completed, and the water-absorbing cotton 17 is also convenient to replace.

[0037] As shown in the drawings, Figure 7 In one embodiment, the bottom of the fixed rod 20 is movably connected with a second abutting plate 2001, and the outside of the top rod 19 is fixedly connected with a first abutting plate 191.

[0038] The working principle and beneficial effects of the technical scheme are that the second abutting plate 2001 can be adjusted to rotate, and the first abutting plate 191 is pulled upward to make the top rod 19 slowly retract into the cavity 181 and press the second spring 182 inside to have elasticity, so that the first abutting plate 191 is placed on the second abutting plate 2001, and the position of the water-absorbing cotton 17 can be raised, and in the process of moving the device for detection by workers pushing the handle 6, the water-absorbing cotton 17 can be prevented from contacting the outer wall of the pipeline to avoid being damaged by long-time friction, and the water-absorbing cotton 17 can work normally when detecting the specific position of the leakage.

[0039] AsFigure 8 As shown in the figure, in one embodiment, the middle part of the fixed block 18 is provided with a cavity 181, and the inside of the cavity 181 is fixedly connected with a second spring 182 fixedly connected with a top rod 19, and the top rod 19 is in sliding connection with the cavity 181;

[0040] The working principle and beneficial effects of the above technical solution are that the top rod 19 can slide inside the cavity 181 to shrink, which is convenient for lifting the position of the water-absorbing cotton 17 for protection, and also facilitates the second spring 182 with elasticity to push the top rod 19 against the water-absorbing cotton 17 to tightly adhere to the outer wall of the pipeline, so that the absorbed water mixed with the fluorescent powder 171 can be squeezed out and adhered to the outer wall of the pipeline as a mark during movement.

[0041] As shown in the figure, Figure 9 In one embodiment, the left and right sides of the lower end of the top rod 19 are provided with inlaid grooves 194, the middle part of the inlaid grooves 194 is provided with a through opening 193, the inside of the inlaid grooves 194 is fixedly connected with a third spring 195, the inside of the through opening 193 is in sliding connection with a limiting plug plate 192 fixedly connected with the third spring 195, and the bottom of the left and right ends of the top rod 19 is provided with a connecting opening in communication with the through opening 193;

[0042] The working principle and beneficial effects of the above technical solution are that by inserting the plug plate 172 into the connecting opening and making the plug opening 173 correspond to the through opening 193, the limiting plug plate 192 is pushed by the third spring 195 with elasticity to directly insert into the plug opening 173 through the through opening 193, so that the plug plate 172 can be firmly fixed and installed in the connecting opening, and the replacement of the water-absorbing cotton 17 is facilitated.

[0043] As shown in the figure, Figure 5 In one embodiment, the bottom of the upper clamping block 2 is provided with a mounting opening 201, the bottom of the lower clamping block 1 is fixedly installed with a limiting plate, and the bottom of the lower mounting plate 14 is fixedly installed with an alarm device;

[0044] The working principle and beneficial effects of the above technical solution are that by combining the upper clamping block 2 on the lower clamping block 1, the limiting plate is inserted into the mounting opening 201, and the half-limiting grooves 301 on the upper connecting plate 3 and the lower connecting plate 4 form a limiting groove, which is convenient for installation; the alarm device is in electrical connection with the first humidity resistor 15 and the second humidity resistor 21, and when the first humidity resistor 15 and the second humidity resistor 21 are in contact with water, the alarm device is triggered to alarm and remind the detection personnel at all times.

[0045] Working principle and use process:

[0046] First, manually push the limit block 502 compression first spring 501 so that it has elastic force, and then the lower block 1 is located at the bottom of the pipeline to be detected, and then the upper block 2 is combined with the lower block 1, so that the limiting plate is inserted into the installation port 201, then the half-limiting groove 301 on the upper connecting plate 3 and the lower connecting plate 4 forms a limiting groove, and the limit block 502 is inserted into the limiting groove along the sliding groove 503 by the elastic force of the first spring 501, so that the lower block 1 and the upper block 2 are fixedly connected together and wrapped outside the pipeline to be detected;

[0047] Then the detection personnel can directly walk slowly by pulling the handle 6, so that the lower block 1 and the upper block 2 rely on the ball 7 to slide stably along the wall of the pipeline to be detected, when encountering a water leakage area, the water droplets will directly drop on the first wet resistance 15, and the first wet resistance 15 will immediately trigger the alarm device to remind, so as to directly detect the water leakage position of the pipeline in this section;

[0048] Then the motor 9 works to drive the connecting rod 10 and the gear 11 to rotate slowly, so as to drive the movable plate 13 to rotate through the gear ring 12, and then drive the wiping plate 16 to wipe the outer wall of the pipeline in this section, in the process, the water absorption cotton 17 will slide along the wiping track and be extruded to the outer wall of the pipeline, when the water absorption cotton 17 passes through the crack water outlet, the water absorption cotton 17 will absorb the water and conduct it to the second wet resistance 21, when the second wet resistance 21 detects the water, it will trigger the alarm device again, so as to determine the position of the water leakage;

[0049] When the water absorption cotton 17 absorbs the water from the crack of the pipeline, it also rotates along the outer wall of the pipeline, and the water directly mixes with the fluorescent powder 171, then the fluorescent powder 171 mixed with water slowly flows out through the water absorption cotton 17, when the water absorption cotton 17 is extruded to the outer wall of the pipeline and moves, 19 can move along 181, and 182 is connected between them, when the whole rotates, 182 is in fluctuation, that is, shaking, a little stretching and compression process, then the elastic 182 will continuously act on 19 to compress, so that the fluorescent powder mixed liquid in 17 is slowly squeezed out, and then adheres to the outer wall of the pipeline, and forms a luminous mark in a dark environment, the luminous mark surrounds the pipeline, because the flowing water will take away the luminous mark on the way, so only the outlet is black, and the flowing place is a black line, which is convenient for the subsequent maintenance personnel to quickly find the damaged place of the pipeline and effectively repair it.

[0050] It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting; it is not intended to exclude myriad other embodiments of the present application that other inventors can develop based on the same general inventive concepts embodied by the described embodiments. That is, although the present application is described in terms of particular embodiments and illustrative figures, it should be apparent that the scope of the present application is not limited to these specific embodiments.

[0051] While the embodiments of the application have been shown and described herein, it will be understood by those skilled in the art that many changes, modifications, substitutions and alterations to these embodiments can be made without departing from the principles and spirits of the application, and it is intended that the scope of the application be limited solely by the scope of the appended claims and the equivalents thereof.

Claims

1. A pipe loss detection device for underground water supply pipe network, comprising a lower clamp block (1) and an upper clamp block (2), characterized in that: The outer side of the lower clamping block (1) is fixedly connected with a lower mounting plate (14), a first humidity resistor (15) is fixedly installed on the inner wall of the lower mounting plate (14), the outer side of the lower clamping block (1) is fixedly installed with a lower connecting plate (4), the outer side of the upper clamping block (2) is fixedly connected with an upper mounting plate (8), the outer side of the upper clamping block (2) is fixedly installed with an upper connecting plate (3), the upper mounting plate (8) and the lower mounting plate (14) are both movably connected with a movable plate (13), the outer side of the movable plate (13) is fixedly connected with a gear ring (12), the top of the upper clamping block (2) is fixedly installed with a motor (9), the outer side of the motor (9) is fixedly connected with a connecting rod (10), the outer side of the connecting rod (10) is fixedly installed with a gear (11) engaged with the gear ring (12), the inner walls of the lower clamping block (1) and the upper clamping block (2) are both movably installed with a ball (7), the movable plate (13) on the upper clamping block (2) is fixedly installed with a fixed block (18), the movable plate (13) on the upper clamping block (2) is fixedly installed with a wiping plate (16), the middle part of the fixed block (18) is movably connected with a top rod (19), the bottom of the top rod (19) is fixedly installed with a second humidity resistor (21), the bottom of the top rod (19) is fixedly connected with a water-absorbing cotton (17), the movable plate (13) on the upper clamping block (2) is fixedly connected with a fixed rod (20), the bottom of the lower connecting plate (4) is fixedly connected with a fixed plate (5), the outer side of the fixed plate (5) is fixedly connected with a handle (6); When a water leakage area is encountered, the water droplets falling directly on the first humidity resistor (15) will trigger the alarm device for reminding, so that the water leakage position of the pipeline in this section of pipeline can be directly detected, and the range is narrowed; the motor (9) drives the connecting rod (10) and the gear (11) to slowly rotate, so as to drive the movable plate (13) to rotate through the gear ring (12), and drive the wiping plate (16) to wipe the outer wall of the pipeline in this section; since the water leakage is slow, after the water stains are wiped, only the crack is still leaking water, and the other areas of the pipeline have no water stains; in the process, the water-absorbing cotton (17) will slide along the wiping track and be extruded to tightly adhere to the outer wall of the pipeline; when the water-absorbing cotton (17) passes through the crack where water is leaking, the water-absorbing cotton (17) will absorb the water leaking from the crack and conduct the water to the second humidity resistor (21); when the second humidity resistor (21) detects water, the alarm device is triggered again; The inside of the water-absorbing cotton (17) is provided with fluorescent powder (171), the top of the left and right ends of the water-absorbing cotton (17) is fixedly connected with a plug plate (172), and the outer side of the plug plate (172) is provided with a plug hole (173); The bottom of the fixed rod (20) is movably connected with a second abutting plate (2001), and the outer side of the top rod (19) is fixedly connected with a first abutting plate (191). The middle part of the fixed block (18) is provided with a cavity (181), and the inside of the cavity (181) is fixedly connected with a second spring (182) fixedly connected with a top rod (19), and the top rod (19) and the cavity (181) are in sliding connection.

2. A pipe leakage detecting apparatus for a water supply pipe network according to claim 1, wherein: The outer side of the upper connecting plate (3) and the lower connecting plate (4) is provided with a half-limiting groove (301), the outer side of the fixed plate (5) is provided with a sliding groove (503), the outer side of the fixed plate (5) is fixedly connected with a first spring (501), and the outer end of the first spring (501) is fixedly connected with a limiting block (502) in sliding connection with the sliding groove (503).

3. A pipe leakage detecting apparatus for a water supply pipe network according to claim 1, wherein: The top of the upper mounting plate (8) is provided with a rectangular port (801), and the outer side of the connecting rod (10) is fixedly connected with a support frame fixedly connected with the upper mounting plate (8).

4. The apparatus of claim 1, wherein: The left and right sides of the lower end of the top rod (19) are provided with inlaid grooves (194), the middle part of the inlaid groove (194) is provided with a through port (193), the inside of the inlaid groove (194) is fixedly connected with a third spring (195), the inside of the through port (193) is in sliding connection with a limiting plug-in plate (192) fixedly connected with the third spring (195), and the bottom of the left and right ends of the top rod (19) is provided with a connecting port in communication with the through port (193).

5. The apparatus of claim 1, wherein: The bottom of the upper clamping block (2) is provided with a mounting port (201), the bottom of the lower clamping block (1) is fixedly connected with a limiting plate, and the bottom of the lower mounting plate (14) is fixedly connected with an alarm device.

Images