CN203069718U - Cable line detection device - Google Patents
Cable line detection device Download PDFInfo
- Publication number
- CN203069718U CN203069718U CN 201220717255 CN201220717255U CN203069718U CN 203069718 U CN203069718 U CN 203069718U CN 201220717255 CN201220717255 CN 201220717255 CN 201220717255 U CN201220717255 U CN 201220717255U CN 203069718 U CN203069718 U CN 203069718U
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- circuit
- cable line
- signal output
- cable
- power
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Abstract
The utility model discloses a cable line detection device which comprises a low frequency input signal circuit, a signal amplification circuit, a signal output circuit and a power supply circuit. The low frequency input signal circuit, the signal output circuit and the power supply circuit are connected with the signal amplification circuit to form a whole detection device circuit. According to the utility model, the cable line detection device is in simple butt joint with a common cable, and whether a fault cable is broken and the broken position can be accurately judged; and the cable line detection device is easy to operation and is time-saving, labor-saving, economical and convenient.
Description
Technical field
The utility model relates to a kind of electric pick-up unit, relate in particular to a kind of judge whether common cable breaks and the position of breaking line detection apparatus.
Background technology
In common electrical equipment use, the least easy fault of finding is the fault of cable break normally, in actual use, modal is exactly the easiest appearance broken string of flat cable peculiar to vessel, because be similar to driving, the slip of cable is taken in the traveling of stacker-reclaimer, dolly peculiar to vessel etc. to, constantly allows cable folding, draw high, in the course of time, the cable in the insulation course will be fractureed, and broken string occurs, and a very long cable, if broken string can not be found out, this root cable need be changed usually, and expense is also very expensive usually.If can find the broken string place, dock processing and can improve its service efficiency.General control cable is after using certain time limit, can broken string appear because of a variety of causes also, common processing is exactly to utilize the cable in stock core to substitute, if there is not the cable in stock core to substitute, just must lay again cable, if can find the broken string place, dock processing, then be that handling failure is economized most, the simplest, the most most economical method.
Patent CN200920210084.6 discloses a kind of multiple branch circuit line detection apparatus, this device arranges terminal by the bottom of main cable and some branch cables, pass the signal of main cable by each terminal back and judge whether cable is cut off, this device needs to install synchronously with cable, and complicated operation is unfavorable for on-line monitoring and the concrete broken string position of definite cable of common cable.
The utility model content
At the problem of above-mentioned existence, the utility model purpose is to provide a kind of common cable is detected, the convenient place of finding its broken string, the line detection apparatus of minimizing fault judgement time.
Problem at above-mentioned existence, the technical solution adopted in the utility model: a kind of cable line pick-up unit, comprise low-frequency input signal circuit, signal amplification circuit, signal output apparatus and power circuit, described low-frequency input signal circuit, signal output apparatus and power circuit all are connected with signal amplification circuit, constitute the pick-up unit circuit of an integral body.
As a kind of improvement of the present utility model, described signal amplification circuit comprises differential amplifier circuit, two-stage audio amplifier circuit and power amplification circuit, and described two-stage audio amplifier circuit is connected into an integral body with differential amplifier circuit and power amplification circuit.
As a kind of improvement of the present utility model, described low frequency signal output circuit is made up of induction magnetic head and coupling condenser, and described low frequency signal output circuit links to each other with differential amplifier circuit.
As a kind of improvement of the present utility model, described signal output apparatus is made up of coupling condenser and warning device, and described signal output apparatus links to each other with power amplification circuit.
As a kind of improvement of the present utility model, it is the differential mode amplifying circuit that described power circuit adopts dual power supply, is made up of on-off switch and battery.
As a kind of improvement of the present utility model, the monomer element of described signal amplification circuit is amplifying triode and resistance, also is provided with a potentiometer in the described differential amplifier circuit, and potentiometer is used for the pickup sensitivity adjustment.
Whether broken string and the broken string position of the utility model by can accurately judge failure cable to the simple butt joint of common cable, simple to operate, time saving and energy saving, economical convenient.
Description of drawings
Fig. 1 is the utility model structure diagram;
Fig. 2 is the utility model principle sketch;
Wherein, 1 is the low-frequency input signal circuit, and 2 is signal amplification circuit, 3 is signal output apparatus, and 4 is power circuit, and 5 is differential amplifier circuit, 6 is the two-stage audio amplifier circuit, and 7 is power amplification circuit, and L is induction magnetic head, C is coupling condenser, RW is potentiometer, and B is loudspeaker, and D is amplifying triode, R is resistance, and K is power switch.
Embodiment
Below in conjunction with description of drawings and embodiment the utility model is described in further detail.
Embodiment 1:A kind of cable line pick-up unit as illustrated in fig. 1 and 2, comprise low-frequency input signal circuit 1, signal amplification circuit 2, signal output apparatus 3 and power circuit 4, described low-frequency input signal circuit 1, signal output apparatus 3 and power circuit 4 all are connected with signal amplification circuit 2, constitute the pick-up unit circuit of an integral body.
Embodiment 2:As illustrated in fig. 1 and 2, described signal amplification circuit 2 comprises differential amplifier circuit 5, two-stage audio amplifier circuit 6 and power amplification circuit 7, and described two-stage audio amplifier circuit 7 is connected into an integral body with differential amplifier circuit 1 and power amplification circuit 7; Described low frequency signal output circuit 1 is made up of induction magnetic head L and coupling condenser C, and described low frequency signal output circuit 1 links to each other with differential amplifier circuit 5; Described signal output apparatus 3 is made up of coupling condenser C and warning device loudspeaker B, and described signal output apparatus 3 links to each other with power amplification circuit 7; The dual power supply that described power circuit 4 adopts is the differential mode amplifying circuit, is made up of on-off switch K and battery
Embodiment 3:As shown in Figure 2, the monomer element of described signal amplification circuit is amplifying triode D and resistance R, also is provided with a potentiometer RW in the described differential amplifier circuit, and potentiometer is used for the pickup sensitivity adjustment.
Method of operating of the present utility model as shown in Figure 2: when cable occurring and open circuit, this phase cable is fed the alternating current phase voltage of 50Hz, the power switch K of contrive equipment closes, pick-up unit is pressed close to need the cable of detection, because what feed in the cable is industrial-frequency alternating current, alternating current generates electromagnetic waves around lead, when magnetic head is pressed close to electrified wire, magnetic head just is imported into electromagnetic wave, magnetic head is converted to electric signal to magnetic signal then, C delivers to device through coupling condenser, and this device can send sound equipment, adjusts the volume that the RW potentiometer can change alarm.Behind the cable outlet broken string, will there be electromagnetic induction at the circuit of back, therefore device is also responded to less than electromagnetic signal, so loudspeaker B device can not send chimes of doom yet, just can detect the broken string of normal cable with such method.
Need to prove above-described embodiment, only is preferred embodiment of the present utility model, is not to limit protection domain of the present utility model, and the equivalents of having done on the basis of above-described embodiment all belongs to protection domain of the present utility model.
Claims (6)
1. cable line pick-up unit, it is characterized in that, comprise low-frequency input signal circuit, signal amplification circuit, signal output apparatus and power circuit, described low-frequency input signal circuit, signal output apparatus and power circuit all are connected with signal amplification circuit, constitute the pick-up unit circuit of an integral body.
2. a kind of cable line pick-up unit according to claim 1, it is characterized in that, described signal amplification circuit comprises differential amplifier circuit, two-stage audio amplifier circuit and power amplification circuit, and described two-stage audio amplifier circuit is connected into an integral body with differential amplifier circuit and power amplification circuit.
3. a kind of cable line pick-up unit according to claim 1 and 2 is characterized in that, described low frequency signal output circuit is made up of induction magnetic head and coupling condenser, and described low frequency signal output circuit links to each other with differential amplifier circuit.
4. a kind of cable line pick-up unit according to claim 1 and 2 is characterized in that described signal output apparatus is made up of coupling condenser and warning device, and described signal output apparatus links to each other with power amplification circuit.
5. a kind of cable line pick-up unit according to claim 1 and 2 is characterized in that, it is the differential mode amplifying circuit that described power circuit adopts dual power supply, is made up of on-off switch and battery.
6. a kind of cable line pick-up unit according to claim 1 and 2 is characterized in that, the monomer element of described signal amplification circuit is amplifying triode and resistance, also is provided with a potentiometer in the circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220717255 CN203069718U (en) | 2012-12-24 | 2012-12-24 | Cable line detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220717255 CN203069718U (en) | 2012-12-24 | 2012-12-24 | Cable line detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203069718U true CN203069718U (en) | 2013-07-17 |
Family
ID=48768490
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220717255 Expired - Fee Related CN203069718U (en) | 2012-12-24 | 2012-12-24 | Cable line detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203069718U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108627727A (en) * | 2017-03-15 | 2018-10-09 | 南京梅山冶金发展有限公司 | The detection device and detection method of the disconnected core of electric LHD Randomized Cable |
| CN109946565A (en) * | 2019-03-20 | 2019-06-28 | 天津大学 | A kind of household electric wire fault point locating device |
-
2012
- 2012-12-24 CN CN 201220717255 patent/CN203069718U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108627727A (en) * | 2017-03-15 | 2018-10-09 | 南京梅山冶金发展有限公司 | The detection device and detection method of the disconnected core of electric LHD Randomized Cable |
| CN109946565A (en) * | 2019-03-20 | 2019-06-28 | 天津大学 | A kind of household electric wire fault point locating device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130717 Termination date: 20211224 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |