CN202066898U

CN202066898U - Noncontact electroprobe integrating functions of hunting and electricity testing

Info

Publication number: CN202066898U
Application number: CN2011201335682U
Authority: CN
Inventors: 林烨
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-04-29
Filing date: 2011-04-29
Publication date: 2011-12-07
Anticipated expiration: 2021-04-29

Abstract

The utility model discloses a noncontact electroprobe integrating functions of hunting and electricity testing, which comprises a casing, a probe, a circuit board and an indicator, wherein the probe protrudes one end of the casing, the circuit board is arranged in an inner cavity of the casing, and the indicator is connected with the circuit board. The probe comprises a metallic inductive part and an insulating layer wrapping the metallic inductive part, the circuit board comprises a hunting circuit and an electricity test circuit, output ends of the hunting circuit and the electricity test circuit are connected with the indicator, and input ends of the hunting circuit and the electricity test circuit are electrically connected or disconnected with the metallic inductive part of the probe through an option switch. The noncontact electroprobe is simple in structure, convenient to carry and use, rapid in testing, and capable of safely and conveniently testing whether a tested article is electrified or not, is a live wire or a zero wire, and has a function of searching targeted cables.

Description

Have the non-contact testing electroprobe of hunting and survey electric work energy concurrently

Technical field

The utility model relates to the hunting field tests, relates more specifically to a kind of non-contact testing electroprobe that has hunting concurrently and survey the electric work energy.

Background technology

The mancarried device whether searching target cable, detection cable voltage exist is electric device, the necessary equipment of repairing.

Whether detection cable voltage exists is generally undertaken by the test electroprobe, present test electroprobe is divided into two classes: i.e. contact and contactless, contact test electroprobe generally is in series by test contact, current-limiting resistance, neon tube, metal clips and hand touched electrode, test contact is contacted with measured object, staff contact hand touched electrode, when measured object has high voltage relative to the earth, the neon tube starter, expression measured object live testing electroprobe self needn't charged source; The non-contact testing electroprobe generally is the electromagnetic field by the induction charging object, shinny or send the sound and show that object is charged through amplifying the rear drive pilot lamp, test electroprobe self must charged source, and the non-contact testing pen comprises test nib and penholder, and circuit board and battery thereof are installed in the penholder chamber.

The general line finder that is used to seek the target cable carries out, the sound signal of sending by clapp oscillator inserts on the port of target cable by general-purpose interfaces such as RJ45/RJ11/BNC, make produce around the target cord loop one around signal field, utilize the very fast signal field that it sends with end identification in the loop of line finder on the way, thereby find the cable of these clauses and subclauses.

But, also do not have a kind of device can realize seeking the target cable simultaneously and detect cable voltage whether have two functions at present.

Therefore, be necessary to provide a kind of and can realize simultaneously detecting whether cable voltage exists and the non-contact line haunting test electroprobe of seeking the target cable overcomes above-mentioned defective.

The utility model content

The purpose of this utility model provides a kind of non-contact testing electroprobe that has hunting concurrently and survey the electric work energy, simple in structure, be easy to carry, easy to use, test fast, whether not only can measure measured object charged safe ready, live wire or zero line, and have the function of seeking the target cable simultaneously.

For achieving the above object, the utility model provides a kind of non-contact testing electroprobe that has hunting concurrently and survey the electric work energy, comprise shell, be stretched on described shell one end detecting head, be located at the circuit board of described shell inner cavity and connect the indicator of described circuit board, described detecting head comprises sheet metal and coats the insulation course of described sheet metal, described circuit board comprises hunting circuit and surveys circuit, described hunting circuit is connected described indicator with the output terminal of surveying circuit, and input end realizes being electrically connected with the sheet metal of described detecting head by a selector switch or disconnection is connected.

Preferably, described survey circuit comprises sampling unit, AD conversion unit, microprocessor recognition unit.

Preferably, described hunting circuit comprises that frequency-selecting receiving element, amplifying unit, demodulating unit and microprocessor identification produce audio unit.

Preferably, described indicator is LED light emitting diode, loudspeaker, earphone or hummer.

Preferably, the indicator that is connected with described survey circuit is the LED lamp; The indicator that is connected with described hunting circuit is loudspeaker.

Compared with prior art, the utility model have hunting concurrently and survey electric work can the non-contact testing electroprobe utilize detecting head respectively with hunting circuit or survey circuit in conjunction with realizing hunting or surveying the electric work energy, simple in structure, be easy to carry, easy to use, test fast, not only can measure whether charged and polarity of measured object safe ready, and fast and effeciently search out the target cable simultaneously.

By following description also in conjunction with the accompanying drawings, it is more clear that the utility model will become, and these accompanying drawings are used to explain embodiment of the present utility model.

Description of drawings

Fig. 1 has hunting concurrently for the utility model and surveys the structural representation of the non-contact testing electroprobe of electric work energy.

Fig. 2 has the theory diagram of the survey electricity circuit of hunting and the non-contact testing electroprobe of surveying the electric work energy concurrently for the utility model.

Fig. 3 has the theory diagram of the hunting and the hunting circuit of the non-contact testing electroprobe of surveying the electric work energy concurrently for the utility model.

Fig. 4 has the hunting proving installation structural representation that the utility model has hunting concurrently and surveys the non-contact testing electroprobe of electric work energy.

Embodiment

With reference now to accompanying drawing, describe embodiment of the present utility model, the similar elements label is represented similar elements in the accompanying drawing.As mentioned above, the utility model provides a kind of non-contact testing electroprobe that has hunting concurrently and survey the electric work energy, simple in structure, be easy to carry, easy to use, test fast, whether not only can measure measured object charged safe ready, live wire or zero line, and fast and effeciently search out the target cable simultaneously.

Please refer to Fig. 1, have the structural representation of the non-contact testing electroprobe of hunting and survey electric work energy for the utility model concurrently.As shown in Figure 1; the non-contact testing electroprobe 100 that the utility model has hunting and survey electric work energy concurrently comprises shell 10; be stretched on the detecting head 20 of described shell 10 front ends; the circuit board 30 of being located at the inner chamber of described shell 10 reaches the indicator 50 that is connected with described circuit board 30; described detecting head 20 comprises metal induction pieces (figure does not show) and coats the insulation course 22 of described metal induction pieces; described metal induction pieces is used for the electromagnetic field of induction charging object; when detecting, do not need described metal induction pieces is directly contacted with charged object, and described insulation course 22 plays a protective role when detecting.Described circuit board 30 comprises surveys circuit 31 and hunting circuit 32, the output terminal of described survey circuit 31 and hunting circuit 32 is connected described indicator 50, and the input end of described survey circuit 31 and hunting circuit 32 realizes being electrically connected with the metal induction pieces of described detecting head by a selector switch K or disconnection is connected.Thereby, can select to detect alternating voltage or seek target cable function by the described selector switch K of control.Preferably, described indicator 50 can be LED light emitting diode, loudspeaker, earphone or hummer.In the present embodiment, the indicator that is connected with described survey circuit 31 is a LED lamp 51; The indicator that is connected with described hunting circuit 32 is loudspeaker 52.

When the non-contact testing electroprobe 100 that utilizes the utility model to have hunting and survey electric work energy concurrently detects voltage, described selector switch K pushed with described survey circuit 31 realize being connected, be sent to described survey circuit 31 behind the signal of sensing by the metal induction pieces of described detecting head 20 and handle, show by the LED lamp 51 that connects described circuit board 30 then.Particularly, with reference to figure 2, described survey circuit 31 comprises sampling unit 311, AD conversion unit 312 and microprocessor recognition unit 313.When utilizing the utility model non-contact line haunting test electroprobe 100 to detect voltage, the signal of sensing by the metal induction pieces of described detecting head 20 is introduced into described sampling unit 311 and takes a sample, entering described AD conversion unit 312 through the simulating signal after the sampling carries out analog to digital conversion and forms data-signal, described data-signal enters described microprocessor recognition unit 313 and discerns the sound signal that also corresponding generation is used to drive described LED lamp 51, at last, described sound signal enters described LED lamp 51 demonstrations.

When the non-contact testing electroprobe 100 that utilizes the utility model to have hunting and survey electric work energy concurrently is sought the target cable, described selector switch K pushed with described hunting circuit 32 realize being connected, be sent to described hunting circuit 32 behind the signal of sensing by the metal induction pieces of described detecting head 20 and carry out after the signal Processing by described finger loudspeaker 52 demonstrations.

Particularly, please refer to Fig. 1, Fig. 3 and Fig. 4, described hunting circuit 32 comprises that described hunting circuit comprises frequency-selecting receiving element 321, amplifying unit 322, demodulating unit 323 and microprocessor identification produce audio unit 324, described frequency receiving element 321 is connected with the described metal induction pieces of stating detecting head 20 and frequency-selecting receives the modulation signal that induction is launched by transmitter 200 (with reference to figure 4), then the modulation signal that receives is amplified after described demodulating unit 323 carries out demodulation through described amplifying unit 322, modulation signal after demodulation enters described 324 of audio units of microprocessor identification generation and discerns and produce corresponding sound signal, and the output terminal of described identification generation audio unit connects described loudspeaker 52 and sound signal is shown by described indicator 50.

From as can be known above-mentioned, the utility model have hunting concurrently and survey electric work can non-contact testing electroprobe 100 owing to adopt the metal induction pieces of stating detecting head 20 respectively with hunting circuit 32 or survey circuit 31 in conjunction with realizing huntings or surveying the electric work energy, simple in structure, test fast, whether not only can measure measured object charged safe ready, live wire or zero line, and have function, thereby safety and improved the work efficiency that detects across Insulation test.

Abovely the utility model is described, but the utility model is not limited to the embodiment of above announcement, and should contains various modification, equivalent combinations of carrying out according to essence of the present utility model in conjunction with most preferred embodiment.

Claims

1. one kind has hunting and the non-contact testing electroprobe of surveying the electric work energy concurrently, comprise shell, be stretched on described shell one end detecting head, be located at the circuit board of described shell inner cavity and connect the indicator of described circuit board, described detecting head comprises the metal induction pieces and coats the insulation course of described metal induction pieces, it is characterized in that: described circuit board comprises hunting circuit and surveys circuit, described hunting circuit is connected described indicator with the output terminal of surveying circuit, and input end realizes being electrically connected with the metal induction pieces of described detecting head by a selector switch or disconnection is connected.

2. the non-contact testing electroprobe that has hunting concurrently and survey the electric work energy as claimed in claim 1, it is characterized in that: described survey circuit comprises sampling unit, AD conversion unit, microprocessor recognition unit.

3. the non-contact testing electroprobe that has hunting concurrently and survey the electric work energy as claimed in claim 1 is characterized in that: described hunting circuit comprises that frequency-selecting receiving element, amplifying unit, demodulating unit and microprocessor identification produce audio unit.

4. the non-contact testing electroprobe that has hunting concurrently and survey the electric work energy as claimed in claim 1, it is characterized in that: described indicator is LED light emitting diode, loudspeaker, earphone or hummer.

5. the non-contact testing electroprobe that has hunting concurrently and survey the electric work energy as claimed in claim 1, it is characterized in that: the indicator that is connected with described survey circuit is the LED lamp; The indicator that is connected with described hunting circuit is loudspeaker.