CN218494788U

CN218494788U - Leakage alarm device for pipe network detection

Info

Publication number: CN218494788U
Application number: CN202221959064.0U
Authority: CN
Inventors: 曹杨
Original assignee: Nanjing Shengchang Technology Development Co ltd
Current assignee: Nanjing Shengchang Technology Development Co ltd
Priority date: 2022-07-28
Filing date: 2022-07-28
Publication date: 2023-02-17
Anticipated expiration: 2032-07-28

Abstract

The utility model discloses a pipe network detects uses leakage alarm device relates to pipeline leakage detection technical field, including detecting the host computer, be provided with the touch-control screen on detecting the host computer, the touch-control screen both sides are provided with the speaker, and touch-control screen one side is provided with the flash light. The utility model discloses it is rational in infrastructure, through snap ring and draw-in groove adaptation, cup joint the ripple cover in the detecting head bottom, and conflict draw-in groove top through the spacing plush head of a plurality of elasticity, make the snap ring spacing fix in the draw-in groove, realize the fixed mounting to the ripple cover, cover the listening pole through the ripple cover, when meetting cement ground or hard soil nature soil, can put the detecting head gently subaerially, the ripple cover through the detecting head bottom holds its bottom all around, it is steady to place, the height that highly is greater than the listening pole of ripple cover, the listening pole and the ground contactless of detecting head bottom, need not to change the listening pole, when meetting soft soil nature soil, the flexible performance through the ripple cover does not influence the listening pole and inserts and detect in the soil.

Description

Leakage alarm device for pipe network detection

Technical Field

The utility model relates to a pipeline leakage detection technical field, in particular to pipe network detects with leaking alarm device.

Background

The pipe network is a pipeline system and is divided into a water distribution pipe network, a ring pipe network and a branch pipe network. The water distribution network is a piping system for sending water to a distribution pipe network to users, and is a part of urban tap water pipe network groups. With the continuous development of pipeline transportation industry, the increase of pipelines, the extension of pipeline laying distance, the increase of pipeline service period, and the inevitable factors such as equipment aging corrosion, running abrasion, geographical and climatic environment changes and artificial damage, once leakage causes not only huge economic loss, but also environmental pollution, casualties and the like. Therefore, a pipe network leakage detection alarm device needs to be arranged on the pipeline for detection.

Present pipe network detects uses leakage alarm device, it need use ultrasonic sensor and listening pole when the detection pipeline leaks, part pipe network is laid at the below ground, most pipe network detects and detects with leakage alarm device adopts two kinds of modes, it detects with listening pole insertion ground at soft soil meeting, it is more accurate to make it detect, cement ground or stereoplasm soil can change into ultrasonic sensor, when meetting cement ground or hard soil nature soil, in order to avoid listening pole and ground contact to produce wearing and tearing, need change listening pole, the troublesome poeration, the detection time is wasted, therefore, this application provides a pipe network detects and satisfies the demand with leakage alarm device.

SUMMERY OF THE UTILITY MODEL

An object of the application is to provide a pipe network detects with leaking alarm device, through snap ring and draw-in groove adaptation, cup joint ripple cover in the detecting head bottom, and conflict draw-in groove top through the spacing plush head of a plurality of elasticity, make the snap ring spacing fix in the draw-in groove, realize the fixed mounting to ripple cover, ripple cover highly is greater than the height of listening pole, and ripple cover is telescopic plastic pipe, cover the listening pole through ripple cover, play dirt-proof effect, when meetting cement ground or hard soil nature soil, can put the detecting head gently subaerially, ripple cover through the detecting head bottom holds its bottom all around, place steadily, when meetting soft soil nature soil, the flexible performance through ripple cover does not influence the listening pole and inserts and detect in the soil.

In order to achieve the above purpose, the present application provides the following technical solutions: leakage alarm for pipe network detectionThe device comprises a detection host, a touch screen is arranged on the detection host, loudspeakers are arranged on two sides of the touch screen, a flash lamp is arranged on one side of the touch screen, a fixedly connected information storage module is arranged in the detection host, a large amount of data information such as pipe network positions, leakage loss and the like are stored in the information storage module in advance, a fixedly connected information receiving module is arranged on the information storage module, a fixedly connected information transmission module is arranged on the information receiving module, an acousto-optic alarm module is fixedly connected onto the information transmission module, a data line is connected onto one side of the detection host, the detection host is fixedly connected with a detection head through the data line, a wiring base is fixedly connected onto the top of the detection head, the wiring base is in threaded connection with a connector of the data line, a sound listening rod is fixedly connected onto the center of the bottom of the detection head, the sound listening rod is in a circular truncated cone-shaped structure, the top diameter of the sound listening rod is larger than the bottom diameter of the sound rod, and an ultrasonic sensor embedded in the sound rod is UE-Ultra-Trak750 ^TM The ultrasonic sensor, the draw-in groove has been seted up to detecting head bottom inboard, listening rod bottom fixedly connected with toper drill bit, detecting head bottom periphery fixedly connected with ripple cover, ripple cover top fixedly connected with the snap ring of draw-in groove adaptation, the snap ring is elastic plastic ring, a plurality of evenly distributed's the spacing plush copper of elasticity of fixedly connected with on the snap ring.

Optimized, detecting head one side fixedly connected with positioning sensor, positioning sensor with detect in the host computer the information reception module with information transmission module signal connection, positioning sensor is the two-dimensional PSD position sensor of DR13-ZX-21 model, can fix a position the position that detects the leakage signal to with its position signal conversion and transmit the information reception module of detecting in the host computer and handle, so that send and carry out the record for the PLC terminal, can make things convenient for the staff to handle the pipeline and reveal unusually.

Optimized, audible-visual alarm module's output respectively with the input of speaker with the input signal connection of flash light, when the detection host computer detects the leakage signal, through information transmission module with its signal transmission to audible-visual alarm module, the input of speaker is transmitted with its signal by audible-visual alarm module's output, make the speaker send the warning sound of being stored in advance by the information storage module, simultaneously with the input of flash light of its signal transmission, make the flash light flash, be convenient for remind the measurement personnel and mark the position of pipeline leakage, so that in time handle the pipeline leakage unusual.

Optimized, in the detection host computer information transmission module and central processing unit's signal reception end signal connection, central processing unit adopts the minimum system that AT89C51 singlechip and peripheral circuit constitute for received signal and analysis processes and conveying, central processing unit's output respectively with the signal reception end AT PLC terminal with audible-visual annunciator's signal reception end signal connection, the PLC terminal with audible-visual annunciator all is located the staff monitor, audible-visual annunciator is AFN-FS10 type audible-visual annunciator, when detecting the leakage signal when detecting the host computer, carries out analysis processes with central processing unit with its signal transmission through information transmission module to transmit PLC terminal and audible-visual annunciator respectively by its signal, send audible-visual annunciator by audible-visual annunciator to remind the staff in time to handle the pipeline leakage unusual.

Optimized, detect host computer both sides fixedly connected with handle, handle one side fixedly connected with installation piece, the installation piece pass through the bolt with detect host computer threaded connection, when testing personnel uses the detection host computer to carry out the pipeline and examine, can hold the handle, make it place before one's body, the testing personnel of being convenient for look over and control the detection host computer.

Optimized, every the handle both sides all rotate and are connected with the link, the link is semi-circular steel hoop, detect two of host computer one side the lacing has same connection rope, two on the link fixedly connected with is the same area of hanging on the connection rope, the area of hanging is elastic silica gel rope-band, uses the detection host computer to carry out the pipeline when examining time measuring when the detection personnel, and the accessible is hung the area and is hung on the detection personnel neck, will detect the host computer and arrange in before one's body, is convenient for vacate both hands and controls detection host computer and follow-up maintenance leakage pipeline, and detects the host computer and is difficult for losing.

Optimized, the ripple cover is trapezoidal cover, the ripple cover highly be greater than the height of listening pole, just the ripple cover is telescopic plastic pipe, covers the listening pole through the ripple cover, plays dirt-proof effect, when meetting cement ground or hard soil nature soil, can put the detecting head gently subaerially, holds its bottom all around through the ripple cover of detecting head bottom, places steadily, and the listening pole and the ground contactless of detecting head bottom need not to change the listening pole, when meetting soft soil nature soil, and the flexible performance through the ripple cover does not influence the listening pole and inserts and detect in the soil.

To sum up, the utility model discloses a technological effect and advantage:

1. the utility model discloses it is rational in infrastructure, through snap ring and draw-in groove adaptation, cup joint the ripple cover in the detecting head bottom, and conflict draw-in groove top through the spacing plush head of a plurality of elasticity, make the snap ring spacing fix in the draw-in groove, realize the fixed mounting to the ripple cover, the height that highly is greater than the listening pole of ripple cover, and the ripple cover is telescopic plastic pipe, cover the listening pole through the ripple cover, play dirt-proof effect, when meetting cement ground or hard soil nature soil, can lightly put the detecting head subaerial, the ripple cover through the detecting head bottom holds its bottom all around, it is steady to place, the height that highly is greater than the listening pole of ripple cover, the listening pole and the ground contactless of detecting head bottom, need not to change the listening pole, when meetting soft soil nature soil, the flexible performance through the ripple cover does not influence the listening pole and inserts and detects in the soil.

2. The utility model discloses in, when pipeline laid in the underground and met soft soil, in inserting soil with the listening pole, the listening pole was round platform shape structure to through conical bit's setting, the listening pole of being convenient for did not have the hindrance and inserts soil, made it detect more accurately, more was favorable to extracting the listening pole smoothly.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic perspective view of a leakage alarm device for pipe network detection;

fig. 2 is a flow chart of the operation of the leakage alarm device for pipe network detection;

FIG. 3 is an enlarged perspective view of the inspection mainframe;

FIG. 4 is an enlarged perspective view of a portion of the handle engaged with the suspension loop;

FIG. 5 is a schematic view of a cut-away and enlarged structure of the detection host;

figure 6 is an enlarged perspective view of the probe and its bellows in partial cutaway.

In the figure: 1. a delivery conduit; 2. detecting a host; 21. a touch screen; 22. a speaker; 23. a flash lamp; 24. an information storage module; 25. an information receiving module; 26. an information transmission module; 27. a sound and light alarm module; 3. a data line; 4. a probe head; 41. a wire holder; 42. a listening rod; 421. a conical drill bit; 43. a bellows cover; 431. a snap ring; 432. an elastic limit raised head; 44. a card slot; 5. a positioning sensor; 6. a handle; 61. mounting a sheet; 7. hanging a ring; 71. connecting ropes; 72. and (7) hanging a belt.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

The embodiment is as follows: referring to fig. 1-6, a pipe network detection leakage alarm device includes a detection host 2, a transmission pipeline 1 is laid on the ground or underground and is sequentially and fixedly connected to form a pipe network, a touch screen 21 is disposed on the detection host 2, speakers 22 are disposed on two sides of the touch screen 21, and a flash lamp is disposed on one side of the touch screen 2123, fixedly connected with information storage module 24 in detection host 2, a large amount of pipe network positions in information storage module 24 are stored in advance, data information such as leakage, fixedly connected with information receiving module 25 on information storage module 24, fixedly connected with information transmission module 26 on information receiving module 25, fixedly connected with acousto-optic alarm module 27 on information transmission module 26, detection host 2 one side is connected with data line 3, detection host 2 is fixedly connected with detecting head 4 through data line 3, detecting head 4 top fixedly connected with connector socket 41, connector socket 41 is in threaded connection with the joint of data line 3, the central position of the bottom of detecting head 4 is fixedly connected with listening rod 42, listening rod 42 is a circular truncated cone structure, the top diameter of listening rod 42 is greater than the bottom diameter of listening rod 42, the embedded ultrasonic sensor of listening rod 42 is UE-Ultra-Trak750 ^TM The ultrasonic sensor, the inner side of bottom of the detecting head 4 has card slots 44, the bottom of the auscultation rod 42 is fixedly connected with the conical bit 421, the bottom periphery of the detecting head 4 is fixedly connected with the ripple cover 43, the top of the ripple cover 43 is fixedly connected with the snap ring 431 matched with the card slots 44, the snap ring 431 is an elastic plastic ring, a plurality of elastic limit raised heads 432 which are uniformly distributed are fixedly connected on the snap ring 431, when in use, the detecting head 4 can be placed on the ground or above the conveying pipeline 1, the ultrasonic sensor embedded in the auscultation rod 42 sends out high-frequency short wave signals to carry out leakage detection on the conveying pipeline 1, once pipeline leakage occurs, ultrasonic waves leak out from the leak hole, the leaked ultrasonic signals are captured by the information receiving module 25 of the detection host machine 2, the correct leakage position can be judged, and transmitted to the receiving end of the positioning sensor 5, and the positioning sensor 5 positions the ultrasonic signals;

when the conveying pipeline 1 is laid underground and meets soft soil, the sounding rod 42 is inserted into the soil, the sounding rod 42 is in a round table structure, and the arrangement of the conical drill 421 facilitates the sounding rod 42 to be inserted into the soil without obstruction, so that the detection is more accurate, and the sounding rod 42 can be pulled out smoothly;

the snap ring 431 is an elastic plastic ring, and can be adapted to the snap ring 431 and the clamping groove 44 to sleeve the corrugated cover 43 at the bottom of the probe head 4, and the top of the clamping groove 44 is abutted by the plurality of elastic limit raised heads 432, so that the snap ring 431 is limited and fixed in the clamping groove 44, and the fixed installation of the corrugated cover 43 is realized.

As an implementation manner in this embodiment, a positioning sensor 5 is fixedly connected to one side of the probe 4, the positioning sensor 5 is in signal connection with an information receiving module 25 and an information transmitting module 26 in the detection host 2, and the positioning sensor 5 is a two-dimensional PSD position sensor of DR13-ZX-21 type, and can position the position where a leakage signal is detected, convert the position signal of the position signal and transmit the position signal to the information receiving module 25 in the detection host 2 for processing, so as to send the position signal to a PLC terminal for recording, thereby facilitating a worker to handle pipeline leakage abnormality.

As an implementation manner in this embodiment, the output end of the sound and light alarm module 27 is respectively in signal connection with the input end of the speaker 22 and the input end of the flash lamp 23, when the host 2 detects a leakage signal, the signal is transmitted to the sound and light alarm module 27 through the information transmission module 26, and the signal is transmitted to the input end of the speaker 22, so that the speaker 22 emits an alarm sound stored in advance in the information storage module 24, and meanwhile, the signal is transmitted to the input end of the flash lamp 23, so that the flash lamp 23 flashes, thereby facilitating to remind a detection person and mark the position of the pipeline leakage, and facilitating to timely handle the pipeline leakage abnormality.

As an implementation manner in this embodiment, the information transmission module 26 in the detection host 2 is in signal connection with a signal receiving end of the central processing unit, the central processing unit adopts a minimum system composed of an AT89C51 single chip microcomputer and a peripheral circuit thereof, and is used for receiving, analyzing, processing and transmitting signals, an output end of the central processing unit is in signal connection with a signal receiving end of the PLC terminal and a signal receiving end of the audible and visual alarm respectively, the PLC terminal and the audible and visual alarm are both located in the monitoring room of the worker, the audible and visual alarm is an AFN-FS10 audible and visual alarm, when the detection host 2 detects a leakage signal, the signal is transmitted to the central processing unit through the information transmission module 26 for analysis and processing, and is transmitted to the PLC terminal and the audible and visual alarm respectively, and the audible and visual alarm is emitted by the audible and visual alarm, so as to remind the worker to handle the pipeline leakage abnormality in time.

As an implementation mode in this embodiment, detect 2 both sides fixedly connected with handles 6 of host computer, 6 one side fixedly connected with installation pieces 61 of handle, installation pieces 61 pass through the bolt with detect 2 threaded connection of host computer, when testing personnel use to detect host computer 2 and carry out the pipeline and examine, can hold handle 6, make it place before one's body, be convenient for testing personnel to look over and control and detect host computer 2.

As an implementation in this embodiment, every 6 both sides of handle all rotate and are connected with link 7, link 7 is semi-circular steel hoop, it has same connection rope 71 to detect two links 7 of host computer 2 one side, two connect the same string of area 72 of fixedly connected with on the rope 71, it is elastic silica gel fag end to hang area 72, when testing personnel use and detect host computer 2 and carry out pipeline detection time measuring, accessible string of area 72 hangs on testing personnel's neck, will detect host computer 2 and arrange in before one's body, be convenient for vacate both hands and control detection host computer 2 and follow-up maintenance leakage pipeline, and detect host computer 2 and be difficult for losing.

As an implementation manner in this embodiment, the corrugated cover 43 is a trapezoidal cover, the height of the corrugated cover 43 is greater than the height of the sounding rod 42, and the corrugated cover 43 is a telescopic plastic pipe, and the sounding rod 42 is covered by the corrugated cover 43, so as to play a role of dust prevention, when encountering cement ground or hard soil, the probing head 4 can be lightly placed on the ground, the periphery of the bottom of the probing head 4 is supported by the corrugated cover 43 at the bottom of the probing head 4, so as to be stably placed, the height of the corrugated cover 43 is greater than the height of the sounding rod 42, the sounding rod 42 at the bottom of the probing head 4 is not in contact with the ground, the sounding rod 42 does not need to be replaced, when encountering soft soil, the insertion of the sounding rod 42 into the soil is not affected by the telescopic performance of the corrugated cover 43, so as to perform detection.

This practical theory of operation: through the arrangement of the handle 6 and the hanging belt 72, when a detector uses the detection host machine 2 to detect the pipeline, the detector can hold the handle 6 to place the handle in front of the body so as to be convenient for the detector to check and control the detection host machine 2, and hang the hanging belt 72 on the neck of the detector so as to place the detection host machine 2 in front of the body so as to leave two hands free to control the detection host machine 2 and subsequently overhaul the leakage pipeline, and the detection host machine 2 is not easy to lose, the conveying pipeline 1 is laid on the ground or underground and is sequentially fixedly connected to form a pipe network, the detecting head 4 can be placed on the ground or above the conveying pipeline 1, the ultrasonic sensor embedded in the sound listening rod 42 sends out high-frequency short wave signals to carry out leakage detection on the conveying pipeline 1, once the pipeline leaks, ultrasonic waves leak out through a leakage hole, the leaked ultrasonic signals are captured by the information receiving module 25 of the detection host machine 2, and the correct leakage position can be judged, the positioning sensor 5 is connected with the information receiving module 25 and the information transmission module 26 in the detection host machine 2 by signals, the positioning sensor 5 is a two-dimensional PSD position sensor of DR13-ZX-21 type, can position the position of the detected leakage signal, converts the position signal and transmits the position signal to the information receiving module 25 in the detection host machine 2 for processing, so as to send the position signal to the PLC terminal for recording, so that the pipeline leakage abnormity can be conveniently processed by the working personnel, the output end of the acousto-optic alarm module 27 is respectively connected with the input end of the loudspeaker 22 and the input end of the flash lamp 23 by signals, when the detection host machine 2 detects the leakage signal, the signal is transmitted to the acousto-optic alarm module 27 by the information transmission module 26, the signal is transmitted to the input end of the loudspeaker 22 by the output end of the acousto-optic alarm module 27, so that the loudspeaker 22 sends out the alarm sound stored in advance in the information storage module 24, meanwhile, the signal is transmitted to the input end of the flash lamp 23, so that the flash lamp 23 flickers, thereby being convenient for reminding detection personnel and marking the leakage position of the pipeline so as to process the abnormal leakage of the pipeline in time, when the detection host 2 detects a leakage signal, the signal is transmitted to the central processing unit for analysis processing through the information transmission module 26, the signals are respectively transmitted to the PLC terminal and the audible and visual alarm, the audible and visual alarm gives out audible and visual alarm, the PLC terminal and the audible and visual alarm are both positioned in a monitoring room of a worker so as to remind the worker to timely treat the abnormal leakage of the pipeline, when the conveying pipeline 1 is laid underground and meets soft soil, the sounding rod 42 is inserted into the soil, the sounding rod 42 is in a round table structure, and through the arrangement of the cone drill 421, the listening rod 42 can be conveniently inserted into the soil without obstruction, so that the detection is more accurate, the listening rod 42 can be more conveniently and smoothly pulled out, the clamping ring 431 is an elastic plastic ring, the corrugated cover 43 can be sleeved at the bottom of the probe head 4 through the matching of the clamping ring 431 and the clamping groove 44, the plurality of elastic limit raised heads 432 are abutted against the top of the clamping groove 44, so that the clamping ring 431 is limited and fixed in the clamping groove 44 to realize the fixed installation of the corrugated cover 43, the height of the corrugated cover 43 is greater than that of the listening rod 42, the corrugated cover 43 is a telescopic plastic pipe, the sound rod 42 is covered by the corrugated cover 43, which plays the role of dust prevention, when meeting cement ground or hard soil, the probe 4 can be placed on the ground lightly, the periphery of the bottom of the probe 4 is supported by the corrugated cover 43 at the bottom, the placement is stable, the height of the corrugated cover 43 is greater than that of the listening rod 42, the listening rod 42 at the bottom of the probe 4 is not in contact with the ground, the listening rod 42 does not need to be replaced, when soft soil is encountered, the sound rod 42 is inserted into the soil for detection without being influenced by the telescopic performance of the corrugated cover 43.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions on some technical features, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of the present invention.

Claims

1. The utility model provides a pipe network detects with leaking alarm device, includes detection host computer (2), its characterized in that: the detection device is characterized in that a touch screen (21) is arranged on the detection host (2), loudspeakers (22) are arranged on two sides of the touch screen (21), a flash lamp (23) is arranged on one side of the touch screen (21), an information storage module (24) is fixedly connected in the detection host (2), an information receiving module (25) is fixedly connected on the information storage module (24), an information transmission module (26) is fixedly connected on the information receiving module (25), an acousto-optic alarm module (27) is fixedly connected on the information transmission module (26), a data line (3) is connected on one side of the detection host (2), the detection host (2) is fixedly connected with a detection head (4) through the data line (3), a wiring seat (41) is fixedly connected on the top of the detection head (4), the wiring seat (41) is in threaded connection with a connector of the data line (3), a clamping groove (44) is formed in the inner side of the bottom of the detection head (4), a sound listening rod (42) is fixedly connected at the central position of the bottom of the detection head (4), the sound listening rod (42) is of a circular table-shaped structure, the diameter of the listening rod (42) is larger than the diameter of a conical listening rod (421), and the listening cover (43) is connected with a drill bit cover (43), ripple cover (43) top fixedly connected with snap ring (431) of draw-in groove (44) adaptation, snap ring (431) are elastic plastic ring, the spacing plush copper (432) of a plurality of evenly distributed's of fixedly connected with elasticity on snap ring (431).

2. The leakage alarm device for pipe network detection according to claim 1, wherein: one side of the detecting head (4) is fixedly connected with a positioning sensor (5), the positioning sensor (5) is in signal connection with the information receiving module (25) and the information transmission module (26) in the detection host (2), and the positioning sensor (5) is a two-dimensional PSD position sensor of a DR13-ZX-21 model.

3. The leakage alarm device for pipe network detection according to claim 1, wherein: the output end of the sound and light alarm module (27) is respectively in signal connection with the input end of the loudspeaker (22) and the input end of the flash lamp (23).

4. The leak alarm device for pipe network inspection according to claim 1, wherein: detect in host computer (2) information transmission module (26) and central processing unit's signal reception end signal connection, central processing unit is the minimum system that adopts AT89C51 singlechip and peripheral circuit to constitute, central processing unit's output respectively with the signal reception end AT PLC terminal and audible-visual annunciator's signal reception end signal connection, the PLC terminal with audible-visual annunciator all is located the staff monitor, audible-visual annunciator is AFN-FS10 type audible-visual annunciator.

5. The leak alarm device for pipe network inspection according to claim 1, wherein: detect host computer (2) both sides fixedly connected with handle (6), handle (6) one side fixedly connected with installation piece (61), installation piece (61) pass through the bolt with detect host computer (2) threaded connection.

6. The leak alarm device for pipe network inspection according to claim 5, wherein: every handle (6) both sides all rotate and are connected with link (7), link (7) are semi-circular, detect two of host computer (2) one side the lacing has same connection rope (71), two on link (7) fixedly connected with is same to be hung area (72) on connecting rope (71), it is elastic silica gel fag end to hang area (72).

7. The leak alarm device for pipe network inspection according to claim 1, wherein: the corrugated cover (43) is a trapezoidal cover, the height of the corrugated cover (43) is greater than that of the listening rod (42), and the corrugated cover (43) is a telescopic plastic tube.