CN2854548Y - Electronic leakage measuring instrument by sonic - Google Patents
Electronic leakage measuring instrument by sonic Download PDFInfo
- Publication number
- CN2854548Y CN2854548Y CN 200520021783 CN200520021783U CN2854548Y CN 2854548 Y CN2854548 Y CN 2854548Y CN 200520021783 CN200520021783 CN 200520021783 CN 200520021783 U CN200520021783 U CN 200520021783U CN 2854548 Y CN2854548 Y CN 2854548Y
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- resistance
- piezoelectric ceramic
- operational amplifier
- connects
- radome
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Abstract
An electronic leakage detection instrument relates to an underground piping inspection instrument, aiming to solve the problem that far-distance leakage cannot be inspected, accompanied with low efficiency and precision when currently the metal bar or metal pipe or headphone is applied to inspect the leakage of the underground piping. The utility model comprises a detecting head 3, an amplifying circuit 4, connection pipe 1 and a headset 2, and the detecting head 3 comprises a vibrating head, a piezoelectric ceramic pipe, a quality pressing block and a shielding cover. The piezoelectric ceramic pipe is arranged between the vibrating head and the quality pressing block. The inner end face of the vibrating head, the piezoelectric ceramic pipe and quality pressing block are arranged inside the shielding cover. The output end of the piezoelectric ceramic pipe connects with the input end of the amplifying circuit 4, while the output end of the amplifying circuit 4 connects with the input end of the headset 2. The working personnel can judge whether the underground piping is leaking and accurately identify the leak of the underground piping through experiment so as to improve the inspection efficiency and facilitate the operation. The utility model, which has the advantages of novel structure and convenience for carrying, is also applied to detect the far-distance leakage.
Description
Technical field
The utility model relates to the detecting instrument of underground pipeline.
Background technology
At present, the staff is when detecting the underground pipeline leakage, usually adopt a metal bar or one meter metal tube how long, its end is installed an old-fashioned phone receiver, whether this pipeline of exposed position audiometry of other end contact underground pipeline has leakage, though adopt this method to come that the audiometry cost is low, method is also simple, efficient is low, degree of accuracy is low and can only judge the closely leakage of pipeline, and just powerless to remote pipe leakage.
The utility model content
Detect and to detect remote leakage when underground pipeline leaks and detection efficiency is low, precision is low problem in order to solve present employing metal bar or metal tube and receiver, the utility model provides a kind of electronics leakage measuring instrument by sonic, it is applied to piezoelectric ceramic tube and electronics amplifying circuit to detect the leakage of underground pipeline, detection efficiency and degree of accuracy have been improved, and can be applied to remote detection, it simple in structure, cost is low.
The utility model comprises connecting pipe and earphone, it also comprises amplifying circuit and detecting head, detecting head involving vibrations head, piezoelectric ceramic tube, quality briquetting and radome, the inner face of a fixedly connected vibration head of pressurized end face of piezoelectric ceramic tube, another pressurized end face of the fixedly connected piezoelectric ceramic tube of quality briquetting, the inner face of vibration head, piezoelectric ceramic tube and quality briquetting all are in the radome, one end of radome is fixedlyed connected with vibration head, the other end of radome is fixedlyed connected with an end of connecting pipe, the electrical signal of piezoelectric ceramic tube connects the input end of amplifying circuit, and the output terminal of amplifying circuit is connected with the input end of earphone.
In use, utilize the exposed position of outer face (being another end face that does not connect piezoelectric ceramic tube) the contact underground pipeline of vibration head, vibration head senses fine motion piezoelectric ceramic tube is exerted pressure, be exactly that piezoelectric ceramic tube is converted to electric signal with pressure signal and sends in the amplifying circuit, amplifying circuit amplifies the electric signal that receives and is sent in the earphone, the staff by earphone just can the audiometry underground pipeline leakage situation, judge in view of the above whether underground pipeline has leakage phenomenon, can determine the leak of underground pipeline by experiment accurately, improved detection efficiency, operated also easy.The utility model also has novel structure, portable advantage.
Description of drawings
Fig. 1 is an one-piece construction synoptic diagram of the present utility model, and Fig. 2 is the structural representation of detecting head 3, and Fig. 3 is the electrical block diagram of amplifying circuit 4.
Embodiment
Embodiment one: this embodiment is described in conjunction with Fig. 1 and Fig. 2, this embodiment is by connecting pipe 1, earphone 2, detecting head 3 and amplifying circuit 4 are formed, detecting head 3 is by vibration head 5, piezoelectric ceramic tube 6, quality briquetting 7 and radome 8 are formed, the inner face 5-1 of a fixedly connected vibration head 5 of pressurized end face of piezoelectric ceramic tube 6, another pressurized end face of quality briquetting 7 fixedly connected piezoelectric ceramic tubes 6, the inner face 5-1 of vibration head 5, piezoelectric ceramic tube 6 and quality briquetting 7 all are in the radome 8, one end 8-3 of radome 8 is fixedlyed connected with vibration head 5, vibration head 5, piezoelectric ceramic tube 6, quality briquetting 7 and radome 8 constitute detecting head 3, the other end 8-2 of radome 8 is fixedlyed connected with an end of connecting pipe 1, the electrical signal of piezoelectric ceramic tube 6 connects the input end of amplifying circuit 4, and the output terminal of amplifying circuit 4 is connected with the input end of earphone 2.
Embodiment two: this embodiment is described in conjunction with Fig. 1 and Fig. 2, this embodiment with the difference of embodiment one is: described detecting head 3 also comprises screw rod 9, nut 10 and pad 11, the center of the inner face 5-1 of vibration head 5 has a circular hole, in the described circular hole internal thread is arranged, quality briquetting 7 is a cylindrical shape, the two ends of screw rod 9 all are provided with external thread, one end of screw rod 9 is by quality briquetting 7, piezoelectric ceramic tube 6 is inserted in the circular hole on the inner face 5-1 of vibration head 5 and by screw thread fixedlys connected with vibration head 5, the other end of nut 10 connecting screw rods 9, pad 11 is fixed between quality briquetting 7 and the nut 10, screw rod 9, nut 10 and pad 11 also are in the radome 8.Other compositions are identical with embodiment one with annexation.This embodiment is fixed together vibration head 5, piezoelectric ceramic tube 6 and quality briquetting 7 by screw rod 9 and nut 10, for convenience detach with install, add pad 11 and can make fixing more firm between vibration head 5, piezoelectric ceramic tube 6 and the quality briquetting 7.
Embodiment three: this embodiment is described in conjunction with Fig. 1 and Fig. 2, this embodiment with the difference of embodiment two is: described radome 8 is divided into the first cavity 8-5 and the second cavity 8-6 by dividing plate 8-4, the center of dividing plate 8-4 has a through hole 8-1, the inner face 5-1 of vibration head 5, piezoelectric ceramic tube 6, quality briquetting 7, screw rod 9, nut 10 and pad 11 all are in the first cavity 8-5 of radome 8, the second cavity 8-6 of radome 8 is connected with connecting pipe 1, and the other end 8-2 of radome 8 and an end of connecting pipe 1 are by being threaded, and amplifying circuit 4 is in the second cavity 8-6 or the connecting pipe 1.Other compositions are identical with embodiment two with annexation.Amplifying circuit 4 in the lead that is connected with the output terminal of piezoelectric ceramic tube 6 can pass through hole 8-1 and be in the first cavity 8-6 or connecting pipe 1 is connected, and does and saved the space, realized the one encapsulation like this.Radome 8 minutes for can making piezoelectric ceramic tube 6, two cavitys is realized more effectively working.
Embodiment four: this embodiment is described in conjunction with Fig. 2, this embodiment with the difference of embodiment one is: the inner face 5-1 of described vibration head 5 is provided with a boss shoulder 5-2, and an end 8-3 of radome 8 is fixedlyed connected by screw thread with the boss shoulder 5-2 on the vibration head 5.Other compositions are identical with embodiment one with annexation.Adopt this embodiment to make things convenient for the installation and removal of radome 8 and vibration head 5, be convenient to change the device of damage.
Embodiment five: this embodiment is described in conjunction with Fig. 1, this embodiment with the difference of embodiment one is: it also comprises power supply box 13 and handle 12, handle 12 is installed on the other end of connecting pipe 1, the supply unit of amplifying circuit 4 is placed in the power supply box 13 and power supply box 13 is fixed on the connecting pipe 1, power supply box 13 is provided with power switch 13-1 and receiver J-Horner 13-2, power switch 13-1 is used to control the supply unit of amplifying circuit 4, and receiver J-Horner 13-2 is connected by lead with the output terminal of amplifying circuit 4 and receiver J-Horner 13-2 is connected with the input end of earphone 2.Other compositions are identical with embodiment one with annexation.Handle 13 can make the use of instrument more humane so that the staff uses.The lead that connects usefulness can be hidden in the connecting pipe 1, and earphone 2 is connected the replacing and the dismounting that can make things convenient for device with amplifying circuit 4 by jack.
Embodiment six: in conjunction with Fig. 1, Fig. 2 and Fig. 3 illustrate this embodiment, this embodiment with the difference of embodiment one is: described amplifying circuit 4 is by the first electrochemical capacitor C1, the second electrochemical capacitor C2, the 3rd electrochemical capacitor C3, the 4th electrochemical capacitor C4, capacitor C 5, first resistance R 1, second resistance R 2, the 3rd resistance R 3, the 4th resistance R 4, the 5th resistance R 5, the 6th resistance R 6, the 7th resistance R 7, the 8th resistance R 8, the first operational amplifier Q1, the second operational amplifier Q2 and the 3rd operational amplifier Q3 constitute, an electrical signal of piezoelectric ceramic tube 6 connects the positive terminal of the first electrochemical capacitor C1, the negative pole end of the first electrochemical capacitor C1 links to each other with the in-phase input end of the first operational amplifier Q1 and an end of first resistance R 1, the inverting input of the first operational amplifier Q1 connects the positive terminal of the second electrochemical capacitor C2 and the output terminal of the first operational amplifier Q1, the negative pole end of the second electrochemical capacitor C2 connects the in-phase input end of the second operational amplifier Q2 and an end of second resistance R 2, the inverting input of the second operational amplifier Q2 connects an end of the 3rd resistance R 3 and the 4th resistance R 4, another electrical signal of piezoelectric ceramic tube 6 and first resistance R 1, the other end of second resistance R 2 and the 3rd resistance R 3 is ground connection all, the other end of the 4th resistance R 4 connects an end of the 5th resistance R 5 and capacitor C 5, the other end of the 5th resistance R 5 and capacitor C 5 is connected the positive terminal of the 3rd electrochemical capacitor C3 and the output terminal of the second operational amplifier Q2, the negative pole end of the 3rd electrochemical capacitor C3 connects the in-phase input end of the 3rd operational amplifier Q3 and an end of the 6th resistance R 6, the inverting input of the 3rd operational amplifier Q3 connects an end of the 7th resistance R 7 and the 8th resistance R 8, the other end of the 8th resistance R 8 connects the output terminal of the 3rd operational amplifier Q3 and the positive terminal of the 4th electrochemical capacitor C4, the other end of the 6th resistance R 6 and the 7th resistance R 7 is connected the input end and the ground connection of earphone 2, and the negative pole end of the 4th electrochemical capacitor C4 connects another input end of earphone 2.The model that the first operational amplifier Q1 adopts is MAX412, and the model that the second operational amplifier Q2 adopts is MAX412, and the model that the 3rd operational amplifier Q3 adopts is LM358; The two dc power supply of above-mentioned amplifier is provided by the device of model for ICL7660.Other compositions are identical with embodiment one with annexation.Amplifying circuit 4 has high input impedance, low noise, advantage of simple structure.
Embodiment seven: in conjunction with Fig. 1 this embodiment is described, this embodiment with the difference of embodiment one is: described connecting pipe 1 adopts retractable drawing and pulling type pipe.Other compositions are identical with embodiment one with annexation.Adopt the drawing and pulling type pipe to be easy to carry.
Claims (7)
1, the electronics leakage measuring instrument by sonic, it comprises connecting pipe (1) and earphone (2), it is characterized in that it also comprises detecting head (3) and amplifying circuit (4), detecting head (3) involving vibrations head (5), piezoelectric ceramic tube (6), quality briquetting (7) and radome (8), the inner face (5-1) of the fixedly connected vibration head of pressurized end face (5) of piezoelectric ceramic tube (6), another pressurized end face of the fixedly connected piezoelectric ceramic tube of quality briquetting (7) (6), the inner face (5-1) of vibration head (5), piezoelectric ceramic tube (6) and quality briquetting (7) all are in the radome (8), one end (8-3) of radome (8) is fixedlyed connected with vibration head (5), the other end (8-2) of radome (8) is fixedlyed connected with an end of connecting pipe (1), the electrical signal of piezoelectric ceramic tube (6) connects the input end of amplifying circuit (4), and the output terminal of amplifying circuit (4) is connected with the input end of earphone (2).
2, electronics leakage measuring instrument by sonic according to claim 1, it is characterized in that described detecting head (3) also comprises screw rod (9), nut (10) and pad (11), the center of the inner face (5-1) of vibration head (5) has a circular hole, in the described circular hole internal thread is arranged, quality briquetting (7) is a cylindrical shape, the two ends of screw rod (9) all are provided with external thread, one end of screw rod (9) is by quality briquetting (7), piezoelectric ceramic tube (6) is inserted in the circular hole on the inner face (5-1) of vibration head (5) and by screw thread fixedlys connected with vibration head (5), the other end of nut (10) connecting screw rod (9), pad (11) is fixed between quality briquetting (7) and the nut (10), screw rod (9), nut (10) and pad (11) also are in the radome (8).
3, electronics leakage measuring instrument by sonic according to claim 2, it is characterized in that described radome (8) is divided into first cavity (8-5) and second cavity (8-6) by dividing plate (8-4), the center of dividing plate (8-4) has a through hole (8-1), the inner face (5-1) of vibration head (5), piezoelectric ceramic tube (6), quality briquetting (7), screw rod (9), nut (10) and pad (11) all are in first cavity (8-5) of radome (8), second cavity (8-6) of radome (8) is connected with connecting pipe (1), and the other end (8-2) of radome (8) and an end of connecting pipe (1) are by being threaded, and amplifying circuit (4) is in second cavity (8-6) or the connecting pipe (1).
4, electronics leakage measuring instrument by sonic according to claim 1, the inner face (5-1) that it is characterized in that described vibration head (5) is provided with a boss shoulder (5-2), and an end (8-3) of radome (8) is fixedlyed connected by screw thread with the boss shoulder (5-2) on the vibration head (5).
5, electronics leakage measuring instrument by sonic according to claim 1, it is characterized in that it also comprises power supply box (13) and handle (12), handle (12) is installed on the other end of connecting pipe (1), the supply unit of amplifying circuit (4) is placed in the power supply box (13) and power supply box (13) is fixed on the connecting pipe (1), power supply box (13) is provided with power switch (13-1) and receiver J-Horner (13-2), power switch (13-1) is used to control the supply unit of amplifying circuit (4), and receiver J-Horner (13-2) is connected by lead with the output terminal of amplifying circuit (4) and receiver J-Horner (13-2) is connected with the input end of earphone (2).
6, electronics leakage measuring instrument by sonic according to claim 1, it is characterized in that described amplifying circuit (4) is by first electrochemical capacitor (C1), second electrochemical capacitor (C2), the 3rd electrochemical capacitor (C3), the 4th electrochemical capacitor (C4), electric capacity (C5), first resistance (R1), second resistance (R2), the 3rd resistance (R3), the 4th resistance (R4), the 5th resistance (R5), the 6th resistance (R6), the 7th resistance (R7), the 8th resistance (R8), first operational amplifier (Q1), second operational amplifier (Q2) and the 3rd operational amplifier (Q3) constitute, an electrical signal of piezoelectric ceramic tube (6) connects the positive terminal of first electrochemical capacitor (C1), the negative pole end of first electrochemical capacitor (C1) links to each other with the in-phase input end of first operational amplifier (Q1) and an end of first resistance (R1), the inverting input of first operational amplifier (Q1) connects the positive terminal of second electrochemical capacitor (C2) and the output terminal of first operational amplifier (Q1), the negative pole end of second electrochemical capacitor (C2) connects the in-phase input end of second operational amplifier (Q2) and an end of second resistance (R2), the inverting input of second operational amplifier (Q2) connects an end of the 3rd resistance (R3) and the 4th resistance (R4), another electrical signal of piezoelectric ceramic tube (6) and first resistance (R1), the other end of second resistance (R2) and the 3rd resistance (R3) is ground connection all, the other end of the 4th resistance (R4) connects an end of the 5th resistance (R5) and electric capacity (C5), the other end of the 5th resistance (R5) and electric capacity (C5) is connected the positive terminal of the 3rd electrochemical capacitor (C3) and the output terminal of second operational amplifier (Q2), the negative pole end of the 3rd electrochemical capacitor (C3) connects the in-phase input end of the 3rd operational amplifier (Q3) and an end of the 6th resistance (R6), the inverting input of the 3rd operational amplifier (Q3) connects an end of the 7th resistance (R7) and the 8th resistance (R8), the other end of the 8th resistance (R8) connects the output terminal of the 3rd operational amplifier (Q3) and the positive terminal of the 4th electrochemical capacitor (C4), the other end of the 6th resistance (R6) and the 7th resistance (R7) is connected the input end and the ground connection of earphone (2), and the negative pole end of the 4th electrochemical capacitor (C4) connects another input end of earphone (2).
7, electronics leakage measuring instrument by sonic according to claim 1 is characterized in that described connecting pipe (1) adopts retractable drawing and pulling type pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520021783 CN2854548Y (en) | 2005-10-19 | 2005-10-19 | Electronic leakage measuring instrument by sonic |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520021783 CN2854548Y (en) | 2005-10-19 | 2005-10-19 | Electronic leakage measuring instrument by sonic |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2854548Y true CN2854548Y (en) | 2007-01-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520021783 Expired - Fee Related CN2854548Y (en) | 2005-10-19 | 2005-10-19 | Electronic leakage measuring instrument by sonic |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2854548Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103047542A (en) * | 2013-01-12 | 2013-04-17 | 苏州市伦琴工业设计有限公司 | Three-point type underground pipeline leakage detecting method |
| CN106861106A (en) * | 2017-03-07 | 2017-06-20 | 甬港现代工程有限公司 | A kind of detector for detecting fire protection pipeline |
| CN108253301A (en) * | 2017-12-07 | 2018-07-06 | 浙江申康管业有限公司 | Pipe leakage detecting system |
-
2005
- 2005-10-19 CN CN 200520021783 patent/CN2854548Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103047542A (en) * | 2013-01-12 | 2013-04-17 | 苏州市伦琴工业设计有限公司 | Three-point type underground pipeline leakage detecting method |
| CN103047542B (en) * | 2013-01-12 | 2014-07-02 | 宁海县雁苍山电力设备厂 | Three-point type underground pipeline leakage detecting method |
| CN106861106A (en) * | 2017-03-07 | 2017-06-20 | 甬港现代工程有限公司 | A kind of detector for detecting fire protection pipeline |
| CN106861106B (en) * | 2017-03-07 | 2020-07-31 | 甬港现代工程有限公司 | Detector for detecting fire-fighting pipeline |
| CN108253301A (en) * | 2017-12-07 | 2018-07-06 | 浙江申康管业有限公司 | Pipe leakage detecting system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |